WO2025050784A1 - Transmission assembly and switch - Google Patents

Abstract

Embodiments of the present application provide a transmission assembly and a switch. The transmission assembly comprises a housing, a switching matrix portion, and a connecting portion. The switching matrix portion and the connecting portion are disposed in the housing. The connecting portion is provided with: at least one power interface, the at least one power interface being electrically connected to the switching matrix portion. The connecting portion is further provided with multiple line card interfaces; the multiple line card interfaces are electrically connected to the switching matrix portion; and the multiple line card interfaces include: at least one high-speed interface, and at least one low-speed interface.

Description

Transmission components and switches

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese patent application filed with the China Patent Office on September 7, 2023, with application number 202311152385.9 and invention name “Transmission Components and Switches”, all contents of which are incorporated by reference in this application.

Technical Field

The present application relates to the technical field of transmission equipment, and in particular to a transmission component and a switch.

Background Art

With the development of information technology, enterprises have more and more diversified needs for information transmission, and the network carries more and more data and equipment terminals, but this also brings about the problem of complex deployment and difficult maintenance of data equipment. At present, in order to solve the problem of complex deployment of multiple terminal devices, rack-mounted switches and routers can be used.

Summary of the invention

Each exemplary embodiment of the present application provides a transmission component and a switch.

In a first aspect of the present application, a transmission component is provided, including:

case,

A switching matrix unit is disposed in the housing; and

A connecting portion is disposed in the housing, and the connecting portion is provided with:

at least one power interface, the at least one power interface being electrically connected to the switching matrix portion;

A plurality of line card interfaces, the plurality of line card interfaces being electrically connected to the switching matrix unit, the plurality of line card interfaces comprising:

at least one high-speed interface; and

At least one low-speed interface.

In this embodiment, the multiple line card interfaces on the connection part are all electrically connected to the switching matrix part, so that multiple line cards can be connected to the connection part, and at least one power interface provided in the connection part is electrically connected to the switching matrix part, so that at least one external power supply can be electrically connected to the switching matrix part through the power interface, thereby powering the switching matrix part and the line cards connected to the multiple line card interfaces. The multiple line card interfaces include at least one high-speed interface and at least one low-speed interface, so that both the low-speed line card and the high-speed line card can be electrically connected to the switching matrix part through the connection part, so that the transmission component of the embodiment of the present application can have more line cards and can support different types of line cards, thereby making the transmission component of the embodiment of the present application more applicable and more integrated.

In a possible implementation manner, the at least one power interface includes a plurality of power interfaces; and

The multiple power interfaces include:

at least one high voltage interface; and

At least one low voltage interface.

In this embodiment, multiple power supply interfaces include at least one low-voltage interface and at least one high-voltage interface, so that both the high-voltage power supply and the low-voltage power supply can be connected to the connecting part, thereby providing low-voltage power supply and high-voltage power supply to the switching matrix part and multiple line cards, further improving the applicability of the transmission component in the embodiment of the present application.

In a possible implementation manner, the connection portion is provided with a connection end electrically connected to the exchange matrix portion;

The power interface and the line card interface are arranged on one side of the connecting part, the connection end is arranged on the other side of the connecting part opposite to the power interface and the line card interface, and the switching matrix part is located on the other side of the connecting part opposite to the power interface and the line card interface.

In this implementation, by arranging the power interface and the line card interface on different sides from the connection end, heat accumulation can be prevented and heat dissipation performance can be improved.

In a possible implementation manner, the switching matrix part is provided with a management interface and/or a fixed interface;

The management interface, the line card interface and the power interface are arranged on the same side of the switching matrix part; and the fixed interface and the management interface are arranged on the other side of the switching matrix part in a direction perpendicular to the side where the management interface is located.

In this implementation, by setting the positions of the fixed interface and the management interface, the fixed interface and the management interface can be set on different sides of the switching matrix, which facilitates the subsequent connection of the fixed board and the management board with the switching matrix.

In a possible implementation manner, the transmission component further includes a fan;

The connecting portion is disposed in the shell, and a gap is formed between the top end of the connecting portion and the inner wall of the top side of the shell; and

The shell is provided with an air inlet and an air outlet, the air inlet and the air outlet are located at opposite sides of the connecting portion, and the fan is arranged at the air outlet.

In this embodiment, a gap is set between the connecting part and the top of the shell so that the heat generated by the line card connected to the transmission component or the fixed plate connected to the fixed interface or the management plate connected to the management interface can be dissipated from the gap, thereby improving the heat dissipation efficiency.

In a possible implementation, the transmission component further includes a hard disk bearing portion, and the hard disk bearing portion is movably disposed in the housing;

The hard disk bearing portion has a hard disk bearing position; and

The exchange matrix part is provided with a hard disk interface located in the housing, and the hard disk bearing part is configured to be driven to move toward the hard disk interface or move away from the hard disk interface.

In a possible implementation manner, the hard disk bearing part includes a bearing base, a hard disk fixing part and a driving part;

The hard disk fixing member is movably connected to the bearing base, the driving member is connected to the hard disk fixing member, and the hard disk bearing position is arranged on the hard disk fixing member; and

The driving member is configured to rotate along a first direction to drive the hard disk fixing member to move toward the hard disk interface, and the driving member is also configured to rotate along a second direction to drive the hard disk fixing member to move away from the hard disk interface, and the first direction and the second direction are opposite to each other.

In a possible implementation, the driving member includes a handle and a slider;

The handle is rotatably connected to the bearing base, one end of the handle is connected to the slider, and the rotation connection between the handle and the slider and the rotation connection between the handle and the bearing base are staggered; and

The bearing base is provided with a slide groove, the extension direction of the slide groove is the same as the direction in which the hard disk fixing part moves toward the hard disk interface, and the sliding block is slidably embedded in the slide groove.

According to a second aspect of the present application, a switch is provided, comprising a power supply unit, a line card unit and a transmission component as described in any one of the above embodiments, wherein the power supply unit is plugged into the power interface and electrically connected to the power interface, and the line card unit is plugged into the line card interface and electrically connected to the line card interface.

In a possible implementation manner, the switch further includes a fixed card portion and/or a management card portion, and the switching matrix portion is provided with a management interface and/or a fixed interface;

The management card portion is plugged into the management interface and is electrically connected to the management interface; and

The fixing card portion is plugged into the fixing interface and is electrically connected to the fixing interface.

In a possible implementation manner, the housing of the transmission component is provided with a plurality of plug interfaces; and

The plurality of plug interfaces respectively correspond to the power supply part, the line card part, the management card part and the fixing card part.

A third aspect of the present application provides a switch, including:

A transmission component, the transmission component comprising:

case;

A switching matrix unit is disposed in the housing; and

A connection part is arranged in the housing; the connection part is provided with at least one power interface and a plurality of line card interfaces, and the at least one power interface and the plurality of line card interfaces are electrically connected to the switching matrix part; the at least one power interface includes a first power interface; the plurality of line card interfaces include a first line card interface and a second line card interface, wherein the first line card interface is a high-speed interface and the second line card interface is a low-speed interface;

A power supply unit, the power supply unit comprising a first power supply unit, the first power supply unit being plugged into the first power interface; and

The line card part includes a first line card part and a second line card part, the first line card part is plugged into the first line card interface, and the second line card is plugged into the second line card interface; wherein the first line card part and the second line card part have different functions.

In this embodiment, the multiple line card interfaces on the connection part are all electrically connected to the switching matrix part, so that multiple line cards can be connected to the connection part, and at least one power interface provided in the connection part is electrically connected to the switching matrix part, so that at least one external power supply can be electrically connected to the switching matrix part through the power interface, thereby powering the switching matrix part and the line cards connected to the multiple line card interfaces. The multiple line card interfaces include at least one high-speed interface and at least one low-speed interface, so that both the low-speed line card and the high-speed line card can be electrically connected to the switching matrix part through the connection part, so that the transmission component of the embodiment of the present application can have more line cards and can support line cards of different types/different functions, such as including line cards that can realize switching functions and line cards that can realize routing functions at the same time, so that the transmission component of the embodiment of the present application has better applicability and higher integration.

In a possible implementation manner, the switch further includes:

A management card part, wherein the management card part is electrically connected to the switching matrix part through a management interface; wherein the management interface is arranged in the switching matrix part, or the management interface is arranged in the connection part.

In a possible implementation manner, the switch further includes:

A fixed card part, wherein the fixed card part is electrically connected to the exchange matrix part through a fixed interface; wherein the fixed interface is arranged at the exchange matrix part, or the fixed interface is arranged at the connection part.

In a possible implementation, the at least one power interface further includes a second power interface; wherein the first power interface is a low voltage interface, and the second power interface is a high voltage interface;

The power supply unit further includes a second power supply unit, the second power supply unit is a high voltage power supply, and the second power supply unit is plugged into the second power supply interface; and

The second power supply unit supplies power to an external device connected to the switch through the connection unit.

In a possible implementation, the connection portion is vertically arranged in the shell; the bottom end of the connection portion is connected to the bottom wall of the shell, and there is a gap between the top end of the connection portion and the top wall of the shell, wherein the gap is used for air flow.

In a possible implementation, the bottom end of the connecting portion is connected to the bottom wall of the shell, and the top end of the connecting portion is connected to the top wall of the shell; wherein there is a gap between the top end of the connecting portion and the top wall of the shell, and the gap is used for air flow.

In a possible implementation manner, the switch is provided with a fan;

The shell is provided with an air inlet and an air outlet, the air inlet is provided on a first side of the shell, the air outlet is provided on a second side of the shell, and the first side is opposite to the second side;

The air inlet includes a first air inlet, the air outlet includes a first air outlet, and the first air inlet and the first air outlet are arranged opposite to each other with respect to the gap; and

The fan is arranged at the air outlet.

In a possible implementation manner, the first side is further provided with an insertion port for accommodating the line card portion; and

The air inlet includes a second air inlet, and the second air inlet is arranged opposite to the line clamp portion.

In a possible implementation manner, the switch further includes a hard disk bearing portion; the hard disk bearing portion is movably disposed in the housing;

The hard disk bearing portion is configured with a hard disk bearing position;

The switching matrix unit is provided with a hard disk interface located in the housing; and

The hard disk bearing portion is configured to be driven to move toward the hard disk interface or move away from the hard disk interface.

In a possible embodiment, the hard disk supporting part includes a supporting base, a hard disk fixing part and a driving part, the hard disk fixing part is movably connected to the supporting base, the driving part is connected to the hard disk fixing part, the hard disk supporting position is arranged on the hard disk fixing part, the driving part is configured to be rotatable along a first direction to drive the hard disk fixing part to move toward the hard disk interface, and the driving part is also configured to be rotatable along a second direction to drive the hard disk fixing part to move away from the hard disk interface, and the first direction and the second direction are opposite to each other.

In a possible implementation manner, the connecting portion is a sheet structure.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features and advantages of the embodiments of the present application will become more easily understood through the following detailed description with reference to the accompanying drawings. In the accompanying drawings, multiple embodiments of the present application will be described in an exemplary and non-limiting manner.

FIG. 1 is a schematic diagram of the internal connection structure of a switch according to an embodiment of the present application.

FIG. 2 is a perspective view of a transmission assembly according to an embodiment of the present application.

FIG. 3 is a schematic diagram showing an enlarged view of area A in FIG. 2 .

FIG. 4 is a three-dimensional diagram of the internal structure of the transmission component according to an embodiment of the present application.

FIG. 5 is a schematic top view of a transmission component according to an embodiment of the present application.

Fig. 6 is a schematic cross-sectional view along the A-A cut line in Fig. 5 .

FIG. 7 is a three-dimensional view of the hard disk bearing portion of the transmission assembly according to an embodiment of the present application.

FIG. 8 is a three-dimensional diagram of the internal structure of the hard disk bearing portion of the transmission assembly according to an embodiment of the present application.

FIG. 9 is a diagram showing the positional relationship between the hard disk and the hard disk bearing portion when the hard disk of the transmission component of the embodiment of the present application is connected to the hard disk interface.

FIG. 10 is a diagram showing the positional relationship between the hard disk and the hard disk bearing portion when the hard disk and the hard disk interface of the transmission component of the embodiment of the present application are separated.

FIG. 11 is a schematic diagram showing a state in which the hard disk and the hard disk interface of the transmission component of an embodiment of the present application change from being connected to being separated.

Reference numerals:

100-housing, 110-power slot, 120-line card slot, 130-management card slot, 140-fixed card slot, 150-air inlet, 160-air outlet, 170-plug interface,

200-switching matrix part, 210-management interface, 220-fixed interface, 230-connection end, 240-hard disk interface,

300-connection part, 310-power interface, 310A-high voltage interface, 310B-low voltage interface, 320-line card interface, 320A-high speed interface, 320B-low speed interface,

400- fan,

500-hard disk bearing part, 510-bearing base, 511-slide slot, 520-hard disk fixing part, 530-driving part, 531-handle, 532-slider, 540-hard disk,

600-Power supply department,

700-Line Card Department,

800-Management Card Department, and

900-Fixed card part.

DETAILED DESCRIPTION

The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "specific examples", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment are included in at least one embodiment of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments and features of the different embodiments described in this specification without contradiction.

With the development of information technology, enterprises' demands for information transmission are becoming more and more diversified, and the network is carrying more and more data and equipment terminals. However, this also brings about the problem of complex deployment and difficult maintenance of data equipment.

In an application scenario involved in the present application, for example, in a modern enterprise, the types of services carried by network equipment include data services, voice services, multicast services, and broadcast services. Equipment involved in data services include personal computers, printers, access points, monitoring, information equipment, etc., equipment involved in voice services include IP phones, traditional phones, etc., and equipment for multicast services or broadcast services includes information publishing systems, display screens, etc. Therefore, there are many types of equipment for building enterprise network services, such as switching equipment, routing equipment, security equipment, storage equipment, etc. However, for small and medium-sized enterprises, it is complicated to configure the above-mentioned network equipment at the same time, and special cabinets need to be configured to achieve deployment; in addition, managing multiple network devices at the same time also has the problem of difficult maintenance.

In the related art, in order to solve the problem of complex deployment of multiple network devices, a device combining a rack switch and a router is used. It can realize the functions of switching and routing in the enterprise at the same time. However, this method will cause the overall chassis size of the equipment to be too large, occupy more space, and the equipment structure is not compact. At the same time, the equipment only has the functions of switching and routing, and cannot carry other services, which leads to poor applicability of the equipment.

In the transmission assembly of the switch of the related art, the transmission assembly needs to be provided with multiple components that are respectively electrically connected with the power supply unit 600, the line card unit 700, the management card unit 800 and the fixed card unit 900 to achieve electrical connection or signal transmission, which will make the internal structure of the switch complicated. At the same time, the multiple components provided in the transmission assembly increase the number of components of the switch, which will also cause the reliability of the switch to deteriorate.

In the transmission component proposed in the embodiment of the present application, multiple line card interfaces on the connection part are electrically connected to the switching matrix part (for example, a forwarding engine (FE) card), so that multiple line cards can be connected to the connection part, and multiple power supply interfaces provided in the connection part are electrically connected to the switching matrix part, so that multiple external power supplies can be electrically connected to the switching matrix part through the multiple power supply interfaces, thereby supplying power to the switching matrix part and the line cards connected to the multiple line card interfaces.

The multiple power interfaces include at least one low voltage interface and at least one high voltage interface. The low voltage interface is used to connect to the low voltage power supply, and the high voltage interface is used to connect to the high voltage power supply. In this way, both the high voltage power supply and the low voltage power supply can be connected to the connection part, so that the switching matrix part and the multiple line cards can be powered by low voltage and high voltage.

The multiple line card interfaces include at least one high-speed interface and at least one low-speed interface. The high-speed interface is used to connect to the low-speed line card, and the low-speed interface is used to connect to the high-speed line card, so that both the low-speed line card and the high-speed line card can be electrically connected to the switching matrix part through the connection part, so that the transmission component of the present application can be installed with more external power supplies and line cards, and can support different types of power supplies and line cards with different functions. The line cards with different functions are connected to the connection part, so that the transmission component of the exemplary embodiment of the present application can realize multiple business functions, so that the transmission component of the exemplary embodiment of the present application has better applicability and higher integration.

The transmission component provided in this application is described in detail below in conjunction with specific embodiments.

With reference to Fig. 1, an embodiment of the present application proposes a switch, including a transmission component, a power supply unit 600, a line card unit 700, a management card unit 800, and a fixed card unit 900. The power supply unit 600, the line card unit 700, the management card unit 800, and the fixed card unit 900 are all electrically connected to the transmission component, wherein the power supply unit 600 can supply power to the electrical devices in the transmission component, and the power supply unit 600 can also supply power to the line card unit 700, the management card unit 800, and the fixed card unit 900 through the transmission component.

2-4 , the embodiment of the present application further proposes a transmission component, including a housing 100 , a switching matrix part 200 and a connecting part 300 , and the transmission component can be applied to the switch of the embodiment of the present application.

Among them, the shell 100 is the basic component of the transmission component of the present application. The shell 100 can provide an installation base for at least some of the other components of the transmission component, and can also protect at least some of the other components of the transmission component. The material of the shell 100 can be metal or a composite material. When the material of the shell 100 is metal, the shell 100 has better structural strength. At the same time, because the metal material has good thermal conductivity, the heat generated by the components in the shell 100 is also easier to dissipate outward through the shell 100. When the shell 100 is made of a composite material, the weight of the shell 100 is relatively light, thereby making the overall weight of the transmission component and the switch using the transmission component relatively light. In the embodiment of the present application, there is no limitation on the specific material of the shell 100.

The housing 100 is provided with a cavity, and the switching matrix unit 200 is arranged in the cavity in the housing 100. The switching matrix unit 200 is a core component of data transmission and exchange in the transmission component of the embodiment of the present application, and is also a core component of data transmission and exchange in the switch of the embodiment of the present application. The switching matrix unit 200 is used to realize point-to-point connection between line cards, and provides data packet forwarding function between these point-to-point line cards. Other components of the switch can be electrically connected to the switching matrix unit 200 to realize data communication between each other.

The connecting part 300 can also be arranged in the shell 100. The connecting part 300 is used to connect components such as the switching matrix part 200, the power supply part 600, the line card part 700, the management card part 800 and the fixed card part 900, and realize electrical connection and communication connection between the various components through the connecting part 300.

1 , the connection part 300 is only connected to the switch matrix 200, the power supply part 600 and the line card part 700. It should be noted that in other embodiments of the present application, the connection part 300 may also be connected to the management card part 800 and the fixed card part 900.

The connection portion 300 may be provided with at least one power interface 310 and a plurality of line card interfaces 320 .

In the embodiment shown in Fig. 1, the number of at least one power interface 310 is 2. Those skilled in the art should understand that the embodiment of the present application does not limit the number of power interfaces 310, and the number of power interfaces 310 may also be 3, 4 or 5.

In some implementations, when the switch does not need to supply power to the outside, the number of the power interface 310 may be one. By providing only one power interface, the volume of the transmission component and the switch may be reduced.

In some embodiments, when the switch needs to be powered externally, or the switch has complex functions and requires multiple different power sources, the number of power interfaces 310 can be multiple, and the multiple power interfaces 310 can be respectively connected to multiple power supply units 600 to power the switch and other devices connected to the switch.

The multiple power interfaces 310 can be electrically connected to the switching matrix unit 200. When the number of the power supply units 600 of the switch in the embodiment of the present application is set to multiple, the multiple power supply units 600 can be electrically connected to the switching matrix unit 200 through the multiple power interfaces 310, so that the multiple power supply units 600 can supply power to the switching matrix unit 200. It can be understood by those skilled in the art that the multiple power supply units 600 can also directly supply power to the components connected to the connecting unit 300 through the connecting unit 300.

The multiple line card interfaces 320 on the connection part 300 can be plugged into multiple line card parts 700. When the number of line card parts 700 of the switch of the present application is also multiple, the multiple line card parts 700 can be electrically connected to the switching matrix part 200 through the multiple line card interfaces 320.

The transmission component provided in the embodiment of the present application can be installed with at least one power supply unit 600 and a plurality of line card units 700, which is suitable for more application scenarios. Specifically, the transmission component can be connected by plugging a plurality of line card units 700 that can realize different functions with a plurality of line card interfaces 320 of the connection unit 300, so that the transmission component of the present application can have a variety of different business functions, thereby realizing multi-business carrying. It can be understood by those skilled in the art that the functions of the line card unit 700 may include different functions such as switching and routing. By plugging in line card units 700 with different functions, multi-business functions are realized. Compared with the solution of stacking switching equipment and routing equipment in the related art, the transmission component and switch provided in the embodiment of the present application can realize the functions of switching and routing in the same device at the same time, effectively reducing the size of the equipment and reducing the maintenance cost of the equipment. Therefore, the switch of the embodiment of the present application is smaller in size and has richer functions. Multiple line card units 700 can respectively realize multiple different functions. In addition to the line card units 700 with different functions such as switching and routing mentioned above, the multiple line card units 700 in the embodiment of the present application may include line card units 700 with data auditing, data monitoring and data analysis functions, so that the switch in the embodiment of the present application can have functions such as data auditing, data monitoring and data analysis. In addition, through the transmission component provided in the embodiment of the present application, line card units 700 with different functions can be set to realize multiple different functions. Compared with the line card unit 700 with a single function in the related art, the transmission component provided in the embodiment of the present application can realize multiple different functions and can be flexibly set for different application scenarios.

The housing 100 has a power slot 110 and a line card slot 120 . When the power supply unit 600 and the line card unit 700 are connected to the connecting unit 300 , the power supply unit 600 is located in the power slot 110 , and the line card unit 700 is located in the line card slot 120 .

When the transmission component includes multiple power interfaces 310, the multiple power interfaces 310 include at least one high-voltage interface 310A and at least one low-voltage interface 310B, wherein the high-voltage interface 310A can be matched with the high-voltage power supply unit 600, so that the high-voltage power supply unit 600 can be electrically connected to the exchange matrix unit 200 through the high-voltage interface 310A. In some embodiments, after the high-voltage power supply unit 600 is electrically connected to the exchange matrix unit 200 through the high-voltage interface 310A, high-voltage electricity can be input to the exchange matrix unit 200, so that the high-voltage electricity can also be input to other devices that require high-voltage electricity power supply through the exchange matrix unit 200, such as devices that supply power to the outside. In some other embodiments, the high-voltage power supply unit 600 is connected to the connection unit 300 through the high-voltage interface 310A, the connection unit 300 is connected to the external device, and the high-voltage power supply unit 600 supplies power to the external device through the connection unit 300. The external device may include an access point (English: Access Point, abbreviated as AP), a camera and other devices. When supplying power, the high-voltage power supply unit 600 can directly supply power to external devices, or it can supply power to external devices through Power over Ethernet (PoE). After the low-voltage power supply unit 600 is electrically connected to the switching matrix unit 200 through the low-voltage interface 310B, low-voltage electricity is input to the switching matrix unit 200. In this way, the low-voltage electricity can also be input to other devices that require low-voltage power supply through the switching matrix unit 200, such as devices that use electricity directly without external power supply. The low-voltage power supply unit 600 is connected to the line card through the low-voltage interface 310B. The low-voltage power supply unit 600 can directly supply power to the line card through the connection unit 300. In this embodiment, the transmission component simultaneously sets the high-voltage interface 310A and the low-voltage interface 310B, so that the transmission component of the embodiment of the present application and the switch using the transmission component can be installed with components with different voltage requirements, thereby improving the applicability of the transmission component. It can be understood by those skilled in the art that high voltage electricity is mainly used to provide power, and the power provided by high voltage can allow the normal operation of electrical appliances. Low voltage electricity is mainly used to provide signals, and the signals provided by low voltage electricity can be understood as information such as sound, data, and pictures. Generally speaking, high voltage electricity can operate independently, and low voltage electricity generally cannot operate independently. The difference between high voltage electricity and low voltage electricity depends not only on the size of the voltage, but also on the purpose. For APs in the field of communications, voltages greater than 36V are called high voltage electricity, and voltages less than or equal to 12V are called low voltage electricity. High voltage electricity includes both strong AC electricity, such as 220V AC electricity, and 48V DC electricity powered by PoE. Of course, different manufacturers may also make settings for high voltage and low voltage according to different needs, and the embodiments of the present application do not specifically limit this.

The multiple line card interfaces 320 include at least one high-speed interface 320A and at least one low-speed interface 320B. Among them, the high-speed interface 320A can match the line card part 700 with a high transmission speed, so that the line card part 700 with a high transmission speed can be electrically connected to the switching matrix part 200 through the high-speed interface 320A. It can be understood by those skilled in the art that the line card part 700 with a high transmission speed can include a line card that provides an uplink function, and a line card for extending high-bandwidth devices such as servers. After the line card part 700 with a low transmission speed is electrically connected to the switching matrix part 200 through the low-speed interface 320B, the line card part 700 with a low transmission speed can be electrically connected to the switching matrix part 200 through the low-speed interface 320B. It can be understood by those skilled in the art that the line card part 700 with a low transmission speed can include a low-bandwidth line card that provides a downlink function. The transmission component provided in the embodiment of the present application can install components with different transmission speed requirements by simultaneously setting the high-speed interface 320A and the low-speed interface 320B, thereby improving the applicability of the transmission component. Those skilled in the art will know that a signal transmission rate less than 1 Gbps is called a low rate, and a signal rate greater than or equal to 1 Gbps is called a high rate. Of course, different equipment manufacturers can define high-speed and low-speed signal rates according to actual scenarios, and the embodiments of the present application do not specifically limit them.

In some embodiments, referring to FIG. 1 , in order to enable the power interface 310 and the line card interface 320 of the connection part 300 in the embodiment of the present application to be electrically connected to the exchange matrix part 200, a connection terminal 230 is provided on the connection part 300, and the connection terminal 230 of the connection part 300 is electrically connected to the exchange matrix part 200, so that the power interface 310 and the line card interface 320 can be electrically connected to the exchange matrix part 200 through the connection terminal 230. It can be understood by those skilled in the art that the connection part 300 can also include a printed circuit board (PCB) for realizing electrical connection between different interfaces. For example, the connection between the power interface 310 and the line card interface 320, or the connection between the power interface 310 and the connection terminal 230, or the connection between the line card interface 320 and the connection terminal 230 is realized through the PCB board.

It should be understood that electronic components, such as the line card unit 700, the switching matrix unit 200, etc., will generate heat during the power-on operation. If the heat generated by the electronic components cannot be dissipated in time, it will affect the stability of the operation of the electronic components and may even damage the electronic components. Continuing to refer to FIG. 1, in order to prevent the transmission component and the switch using the transmission component from accumulating heat during operation, the power interface 310 and the line card interface 320 of the connection part 300 can be set on the same side of the connection part 300. The connection end 230, the power interface 310 and the line card interface 320 are all arranged opposite to the connection part 300. Correspondingly, the exchange matrix part 200 can also be arranged adjacent to the connection end 230, so that the exchange matrix part 200 is also distributed on the opposite sides of the connection part 300 with the power interface 310 and the line card interface 320. In this way, the heat generated by the exchange matrix part 200 is concentrated on one side of the connection part 300, and the heat generated by the power supply part 600 and the line card part 700 is concentrated on the other side of the connection part 300, so that the connection part 300 isolates the heat in the transmission component and makes the heat relatively dispersed to prevent local overheating of the transmission component. The transmission component in the embodiment of the present application can prevent local heat accumulation through reasonable partitioning. It can be understood by those skilled in the art that the power supply part 600 generates more heat, and a fan can be independently provided to dissipate the heat of the power supply part 600. The main heat of the line card part 700 is generated by the line card processing part during operation. Therefore, the line card processing part and the switching matrix part 200 can be distributed on opposite sides of the connecting part 300. Correspondingly, the line card processing part is arranged on the same side as the power interface 310 and the line card interface 320. In this way, the heat generated by the line card processing part and the switching matrix part 200 can be dispersed in different areas within the shell 100. At the same time, the line card processing part can also be arranged adjacent to the line card interface 320 to make the signal transmission between the line card processing part and the line card interface 320 more stable.

In some embodiments, with reference to FIG. 1 and FIG. 2, the switching matrix unit 200 of the present application may be provided with a management interface 210 and a fixed interface 220, wherein the management interface 210 may be used to connect with the management card unit 800, so that the management card unit 800 may be electrically connected to the switching matrix unit 200, and a chip may be provided in the management card unit 800, so that the management card unit 800 may implement functions such as routing protocol processing and security auditing. The fixed interface 220 may be used to connect with the fixed card unit 900, the fixed card unit 900 is fixedly connected to the housing 100, and the fixed card unit 900 may be used to implement fixed service functions. Specifically, the fixed service functions include functions such as host control of the transmission component, communication with external devices, and data import and export of the internal storage device. It can be understood by those skilled in the art that the fixed card unit 900 is used to implement the management function of the whole machine, and therefore, the fixed card unit 900 may be fixedly arranged on the transmission component, and then fixedly connected to the switch.

In some embodiments, the management card unit 800 is directly connected to the exchange matrix unit 200 through the management interface 210, and the fixed card unit 900 is directly connected to the exchange matrix unit 200 through the fixed interface 220. When the exchange matrix unit 200 is directly connected to the management card unit 800 and the fixed card unit 900, the exchange matrix unit 200 directly transmits signals through the management interface 210 and the fixed interface 220, and other transfer components are not required, which can reduce signal transmission attenuation. A management card slot 130 and a fixed card slot 140 are also provided in the housing 100. When the management card unit 800 and the fixed card unit 900 are connected to the exchange matrix unit 200, the management card unit 800 is located in the management card slot 130, and the fixed card unit 900 is located in the fixed card slot 140.

Specifically, the number of management interfaces 210 can be multiple, and accordingly, the number of management card units 800 can also be multiple, and multiple management card units 800 can be plugged into multiple management interfaces 210 respectively. Multiple management card units 800 can adopt different models and forms, so that multiple management card units 800 can achieve different functions. The fixed card unit 900 connected to the fixed port of the switching matrix unit 200 can be provided with a management port of the device, such as a universal serial bus (English: Universal Serial Bus, abbreviated as USB) and a console CONSLE interface, so that the login operation device, configuration management and update of the device software system can be realized through the interface on the fixed card unit 900.

The management interface 210, the line card interface 320, and the power interface 310 are arranged on the same side of the switching matrix unit 200, and the fixed interface 220 and the management interface 210 are arranged on different sides of the switching matrix unit 200. In this way, the multiple interfaces on the switching matrix unit 200 can be relatively dispersed. For example, as shown in FIG1, the fixed interface 220 can be arranged on the right side of the switching matrix unit 200, and the management interface 210 can be arranged on the lower side of the switching matrix unit 200. In other embodiments, the fixed interface 220 can also be arranged on the upper side of the switching matrix unit 200, and the management interface 210 can be arranged on the lower side of the switching matrix unit 200.

In some embodiments, referring to FIG. 4 to FIG. 6 , in order to efficiently dissipate the internal heat of the transmission component of the present application during operation, reduce the temperature in the housing 100 and protect the components in the housing 100, the transmission component of the present application may also be provided with a fan 400, and an air inlet 150 and an air outlet 160 may be provided on the housing 100. The air inlet 150 and the air outlet 160 of the housing 100 are opened on the surface of the housing 100, and the air inlet 150 and the air outlet 160 are connected to the cavity in the housing 100 for accommodating the switching matrix part 200, the connection part 300, the power supply part 600, the line card part 700, the management card part 800 and the fixed card part 900. The fan 400 can be set at the air inlet 150 or the air outlet 160 of the shell 100. The fan 400 can suck in cold air outside the shell 100 so that the cold air can come into contact with the hot air and heat-generating components in the shell 100 for heat exchange. Then the fan 400 discharges the air that has undergone heat exchange through the air outlet 160 of the shell 100, so that the heat in the shell 100 can be efficiently dissipated to the outside of the shell 100.

The connection part 300 of the present application may be a sheet structure, and the connection part 300 may be erected in the housing 100. In some implementations, the connection part 300 may be a PCB board, and the sheet structure may be understood as a plate-like structure of the PCB board. Specifically, when the connection part 300 is erected in the housing 100, the bottom end of the connection part 300 is connected to the bottom wall in the housing 100, and the top end of the connection part 300 is connected to the top wall of the housing 100. Accordingly, the power interface 310 and the line card interface 320 of the connection part 300 are arranged on the side of the connection part 300 facing the power supply part 600 and the line card part 700, and the connection end 230 of the connection part 300 is arranged on the side of the connection part 300 facing the switching matrix part 200. There is a gap between the top end of the connection part 300 and the top wall of the housing 100, and the gap allows air to pass through. The air inlet 150 and the air outlet 160 of the housing 100 can be arranged on both sides of the housing 100, and the air inlet 150 and the air outlet 160 are located on opposite sides of the connecting portion 300, that is, one of the air inlet 150 and the air outlet 160 is located on the side of the line card portion 600, and the other is located on the side of the switching matrix 200. The air inside can pass through the gap between the top of the connection part 300 and the top inner wall of the housing 100, and be discharged from the air outlet 160 of the housing 100. It should be understood that the density of hot air is smaller than that of cold air, so the air heated by the switching matrix part 200, the line card part 700, the power supply part 600, the management card part 800 and the fixed card part 900 in the housing 100 will spontaneously concentrate in the upper area of the housing 100, so that after the fan 400 is started, the hot air can pass directly through the gap between the connection part 300 and the top inner wall of the housing 100, so that the hot air can pass through the housing 100 more efficiently and be discharged from the air outlet 160 of the housing 100. In this embodiment, heat-generating components such as a switching matrix unit 200, a line card unit 700, a power supply unit 600, a management card unit 800 and a fixed card unit 900 are provided at the bottom of the shell 100. When hot air is generated, a hot air flow is formed. The hot air flow will move upward quickly due to its low density, thereby increasing the flow rate of the hot air.

In some embodiments, referring to FIG. 6 , at least part of the air inlet 150 and at least part of the air outlet 160 of the present application may be arranged to be opposite to the gap between the connection part 300 and the top inner wall of the housing 100, so that the air inlet 150, the air outlet 160, and the gap between the connection part 300 and the top inner wall of the housing 100 may form a convection channel, so that the heat in the housing 100 may be more efficiently dissipated from the housing 100. In addition, part of the air inlet 150 may also be arranged to be opposite to the line card part 700, the power supply part 600, the fixing card part 900, and the management card part 800, so that the cold air entering the housing 100 through the air inlet 150 may fully contact and exchange heat with the line card part 700, so that the heat dissipation effect of the line card part 700 is better. In this embodiment, because part of the air inlet 150 is opposite to the line card part 700, the fixed card part 900 and the management card part 800, when the hot air flow formed by the heat generated by these components flows upward, its pressure will be reduced, forming a pressure difference with the external cold air, which will accelerate the movement of the cold air and improve the heat dissipation efficiency. In the embodiment of the present application, by setting a high-low pressure mixed flow heat dissipation duct, the air flow can be accelerated. At this time, even if the speed of the fan 400 is reduced, the heat dissipation effect can be achieved, thereby reducing the power of the whole machine, achieving energy saving and noise reduction.

In some embodiments, in the transmission component of the present application, referring to Figures 2 and 3, the shell 100 may be provided with a plug-in interface 170. When the power supply unit 600, the line card unit 700, the management card unit 800 and the fixed card unit 900 are installed in the shell 100 and are respectively connected to the connection unit 300 and the switching matrix unit 200, the interfaces of the power supply unit 600, the line card unit 700, the management card unit 800 and the fixed card unit 900 themselves may be located at the plug-in interface 170, so that the interfaces of the power supply unit 600, the line card unit 700, the management card unit 800 and the fixed card unit 900 themselves may be exposed on the surface of the shell 100, so that external components can be conveniently connected to the power supply unit 600, the line card unit 700, the management card unit 800 and the fixed card unit 900.

In the related scheme, a hard disk assembly is also provided in the switch, as shown in FIG. 4 and FIG. 11, the hard disk is installed along the third direction, that is, the hard disk interface is provided in the switching matrix part, and the position of the hard disk interface is parallel to the connecting part. If the side provided with the wired card slot is defined as the first side of the shell, and the side opposite to the first side is the second side, then the hard disk interface in the related technology is provided toward the second side. At this time, if the hard disk 540 shown in FIG. 8-FIG. 10 is to be installed, because the hard disk 540 is longer in the depth direction, the depth of the transmission component and the switch will be increased, thereby increasing the volume of the transmission component and the switch.

In some embodiments, referring to FIG. 4 and FIG. 9 , the transmission assembly provided by the exemplary embodiment of the present application may further include a hard disk bearing part 500, which may be disposed in the housing 100 and movably connected to the housing 100. The hard disk bearing part 500 is provided with a hard disk bearing position for carrying and installing a hard disk 540. When the hard disk 540 is installed on the hard disk bearing part 500, the hard disk 540 is fixed to the hard disk bearing part 500. The switching matrix part 200 is also provided with a hard disk interface 240, which is located in the housing 100, and the hard disk interface 240 is electrically connected to the switching matrix part 200, and the hard disk interface 240 cooperates with the hard disk 540, and the hard disk 540 can be plugged into the hard disk interface 240, so that the hard disk 540 can be electrically connected to the switching matrix part 200. In this embodiment, the hard disk bearing part 500 is configured to be movable toward the hard disk interface 240 or to move away from the hard disk interface 240, that is, the hard disk bearing position of the hard disk bearing part 500 can move toward the switching matrix part 200 or to move away from the switching matrix part 200. When the hard disk carrier 500 moves toward the hard disk interface 240, the hard disk 540 disposed on the hard disk carrier 500 can also move with the hard disk carrier 500 toward the hard disk interface 240, so that the interface on the hard disk 540 can be plugged into the hard disk interface 240 in the housing 100. When the hard disk carrier 500 moves away from the hard disk interface 240, the hard disk 540 disposed on the hard disk carrier 500 can also move with the hard disk carrier 500 away from the hard disk interface 240, so that the interface on the hard disk 540 can be separated from the hard disk interface 240 in the housing 100.

The hard disk 540 is detachably connected to the hard disk carrier 500, so that the hard disk 540 disposed on the hard disk carrier 500 can be detached and replaced. In this way, when the hard disk is full of data, the hard disk carrier 500 can be driven to move so that the hard disk 540 after the data is fully stored can be detached from the hard disk interface. 240 is separated and the hard disk 540 is replaced.

In some embodiments, referring to FIG. 7, FIG. 8, FIG. 9 and FIG. 10, the hard disk bearing part 500 of the present application may specifically include a bearing base 510, a hard disk fixing part 520 and a driving part 530, wherein the hard disk bearing position is set on the hard disk fixing part 520, so that the hard disk fixing part 520 can be used to bear and fix the hard disk 540, the hard disk fixing part 520 can be movably connected with the bearing base 510, the driving part 530 is connected with the hard disk fixing part 520, and the driving part 530 is configured to be driven to rotate along a first direction or a second direction that is opposite to each other. Referring to FIG. 9, when the driving part 530 rotates along the first direction, the hard disk fixing part 520 can be moved toward the hard disk interface 240 of the exchange matrix part 200, so that the hard disk 540 fixed to the hard disk fixing part 520 can move toward the hard disk interface 240, so that the hard disk 540 and the hard disk interface 240 are docked. When the driving member 530 rotates in a second direction opposite to the first direction, the hard disk fixing member 520 can be moved away from the hard disk interface 240 in the housing 100, so that the hard disk 540 fixed to the hard disk fixing member 520 can be moved away from the hard disk interface 240 to separate the hard disk 540 from the hard disk interface 240.

Specifically, the driving member 530 may include a handle 531 and a slider 532, wherein the handle 531 is rotatably connected to the bearing base 510, and one end of the handle 531 is also rotatably connected to the slider 532. The rotational connection between the handle 531 and the slider 532 and the rotational connection between the handle 531 and the bearing base 510 are staggered, so that the part where the handle 531 is connected to the bearing base 510 is different from the part where the handle 531 is connected to the slider 532. The slider 532 is connected to the hard disk fixing member 520, and the bearing base 510 is provided with a slide groove 511. The extension direction of the slide groove 511 is set in the same direction as the direction of the hard disk fixing member 520 toward the hard disk interface 240. Part of the slider 532 can be embedded in the slide groove 511, so that the slider 532 can move along the slide groove 511. In this way, when the handle 531 is driven to rotate, the slider 532 can be driven to move along the slide groove 511, so that the hard disk fixing component 520 connected to the slider 532 can move along the extension direction of the slide groove 511, and then the hard disk fixing component 520 can move toward the hard disk interface 240 or move away from the hard disk interface 240, so that the hard disk can be connected to or separated from the hard disk interface 240.

Specifically, referring to FIG. 11 , FIG. 11 shows the first state, the second state, and the third state of the hard disk 540 from left to right, respectively, showing the process of adjusting the hard disk 540 from docking with the hard disk interface 240 to separating the hard disk 540 from the hard disk interface 240. When the hard disk 540 is in the first state, the hard disk 540 is docked with the hard disk interface 240. By rotating the handle 531 in the second direction, the hard disk 540 can be adjusted to the second state, at which time the hard disk 540 is separated from the hard disk interface 240. As the handle 531 continues to rotate in the second direction, the hard disk 540 can be adjusted to the third state, at which time the distance between the hard disk 540 and the hard disk interface 240 continues to increase, so that the user can finally take the hard disk 540 out of the supporting base 510. If the hard disk 540 needs to be docked with the hard disk interface 240, the hard disk 540 can be adjusted from the third state to the second state, and finally adjusted to the first state.

The hard disk fixing part 520 may be a frame structure, and the hard disk 540 may be placed in the hard disk fixing part 520. The hard disk fixing part 520 may have screw holes corresponding to the screw holes on the hard disk 540, so that the hard disk 540 may be fixed to the hard disk fixing part 520 by bolts. The supporting base 510 may also be a frame structure, and the hard disk fixing part 520 may be arranged in the supporting base 510, so that the hard disk 540 may also be located in the supporting base 510, so that the supporting base 510 can protect the hard disk 540.

The housing 100 may also be provided with a hard disk opening, which is provided on the surface of the housing 100 and communicates with the cavity in the housing 100. The hard disk carrier 500 may be placed in the housing 100 or taken out from the housing 100 through the hard disk opening, so as to facilitate the replacement of the hard disk 540. When the hard disk carrier 500 is located in the housing 100, at least part of the handle 531 is located outside the housing 100, so that the user can conveniently turn the handle 531, so that the hard disk 540 can be connected to or separated from the hard disk interface 240. Specifically, referring to FIG9 , at this time, the hard disk 540 is in the hard disk carrier 500 and can be connected to the hard disk interface 240; referring to FIG10 , at this time, the hard disk 540 is in the hard disk carrier 500 and can be separated from the hard disk interface 240.

In the embodiment of the present application, the hard disk 540 is installed along the fourth direction, that is, the hard disk interface is set in the switching matrix part 200, and the position of the hard disk interface 240 is perpendicular to the connection part. The embodiment of the present application can effectively reduce the depth of the transmission component and the switch, increase the compactness of the layout, and reduce the volume of the device.

Finally, it should be noted that the above implementation modes are only used to illustrate the technical solution of the present application, rather than to limit it. The present application has been described in detail according to the aforementioned implementation modes, but a person skilled in the art should understand that it is still possible to modify the technical solutions described in the aforementioned implementation modes, or to make equivalent replacements for some or all of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the implementation modes of the present application.

Claims (22)

A transmission component, comprising: case, A switching matrix unit is disposed in the housing; and A connecting portion is disposed in the housing, and the connecting portion is provided with: at least one power interface, the at least one power interface being electrically connected to the switching matrix portion; A plurality of line card interfaces, the plurality of line card interfaces being electrically connected to the switching matrix portion, the plurality of line card interfaces comprising: at least one high-speed interface; and At least one low-speed interface. The transmission assembly according to claim 1, wherein: The at least one power interface comprises: at least one high voltage interface; and At least one low voltage interface. The transmission component according to claim 1 or 2, wherein: The connection part is provided with a connection end electrically connected to the exchange matrix part; The power interface and the line card interface are arranged on one side of the connecting part, the connection end is arranged on the other side of the connecting part opposite to the power interface and the line card interface, and the switching matrix part is located on the other side of the connecting part opposite to the power interface and the line card interface. The transmission component according to any one of claims 1 to 3, wherein: The exchange matrix part is provided with a management interface and/or a fixed interface; The management interface, the line card interface and the power interface are arranged on the same side of the switching matrix part; and The fixed interface and the management interface are arranged on different sides of the switching matrix part. The transmission component according to any one of claims 1 to 4, wherein: The transmission assembly also includes a fan; The connecting portion is disposed in the shell, and a gap is formed between the top end of the connecting portion and the inner wall of the top side of the shell; and The shell is provided with an air inlet and an air outlet, the air inlet and the air outlet are located at opposite sides of the connecting portion, and the fan is arranged at the air outlet. The transmission component according to any one of claims 1 to 5, wherein: The transmission assembly further includes a hard disk bearing portion, and the hard disk bearing portion is movably disposed in the housing; The hard disk bearing portion has a hard disk bearing position; and The exchange matrix part is provided with a hard disk interface located in the housing, and the hard disk bearing part is configured to be driven to move toward the hard disk interface or move away from the hard disk interface. The transmission assembly according to claim 6, wherein: The hard disk bearing part includes a bearing base, a hard disk fixing part and a driving part; The hard disk fixing member is movably connected to the bearing base, the driving member is connected to the hard disk fixing member, and the hard disk bearing position is arranged on the hard disk fixing member; and The driving member is configured to rotate along a first direction to drive the hard disk fixing member to move toward the hard disk interface, and the driving member is also configured to rotate along a second direction to drive the hard disk fixing member to move away from the hard disk interface, and the first direction and the second direction are opposite to each other. The transmission assembly according to claim 7, wherein: The driving member includes a handle and a slider; The handle is rotatably connected to the bearing base, one end of the handle is connected to the slider, and the rotation connection between the handle and the slider and the rotation connection between the handle and the bearing base are staggered; and The bearing base is provided with a slide groove, the extension direction of the slide groove is the same as the direction in which the hard disk fixing part moves toward the hard disk interface, and the sliding block is slidably embedded in the slide groove. The switch according to any one of claims 1 to 8, wherein: The connecting portion is a sheet structure. A switch comprises a power supply unit, a line card unit and a transmission component as described in any one of claims 1 to 9, wherein the power supply unit is plugged into the power interface and electrically connected to the power interface, and the line card unit is plugged into the line card interface and electrically connected to the line card interface. The switch according to claim 10, wherein: The switch further comprises a fixed card part and/or a management card part, and the switching matrix part is provided with a management interface and/or a fixed interface; The management card portion is plugged into the management interface and is electrically connected to the management interface; and The fixing card portion is plugged into the fixing interface and is electrically connected to the fixing interface. The switch according to claim 11, wherein: The housing of the transmission component is provided with a plurality of plug interfaces; and The plurality of plug interfaces respectively correspond to the power supply part, the line card part, the management card part and the fixing card part. A switch, comprising: A transmission component, the transmission component comprising: case; A switching matrix unit is disposed in the housing; and A connection part is arranged in the housing; the connection part is provided with at least one power interface and a plurality of line card interfaces, the at least one power interface and the plurality of line card interfaces are electrically connected to the switching matrix part; the at least one power interface includes a first power interface; the plurality of line card interfaces include a first line card interface and a second line card interface, wherein the first line card interface is a high-speed interface, The second line card interface is a low-speed interface; A power supply unit, the power supply unit comprising a first power supply unit, the first power supply unit being plugged into the first power interface; and The line card part includes a first line card part and a second line card part, the first line card part is plugged into the first line card interface, and the second line card is plugged into the second line card interface; wherein the first line card part and the second line card part have different functions. The switch according to claim 13, wherein the switch further comprises: A management card part, wherein the management card part is electrically connected to the switching matrix part through a management interface; wherein the management interface is arranged in the switching matrix part, or the management interface is arranged in the connection part. The switch according to any one of claims 13 or 14, wherein the switch further comprises: A fixed card part, wherein the fixed card part is electrically connected to the exchange matrix part through a fixed interface; wherein the fixed interface is arranged at the exchange matrix part, or the fixed interface is arranged at the connection part. The switch according to any one of claims 13 to 15, wherein the at least one power interface further comprises a second power interface; wherein the first power interface is a low voltage interface, and the second power interface is a high voltage interface; The power supply unit further includes a second power supply unit, the second power supply unit is a high voltage power supply, and the second power supply unit is plugged into the second power supply interface; and The second power supply unit supplies power to an external device connected to the switch through the connection unit. The switch according to any one of claims 13 to 16, wherein the connecting portion is vertically arranged in the housing; the line card portion is arranged on one side of the connecting portion, and the switching matrix portion is arranged on the other side of the connecting portion. The switch according to claim 17, wherein a bottom end of the connecting portion is connected to a bottom wall of the housing, and a gap is provided between a top end of the connecting portion and a top wall of the housing, wherein the gap is used for air flow. The switch according to any one of claims 13 to 18, wherein the switch is provided with a fan; The shell is provided with an air inlet and an air outlet, the air inlet is provided on a first side of the shell, the air outlet is provided on a second side of the shell, and the first side is opposite to the second side; The air inlet includes a first air inlet, the air outlet includes a first air outlet, and the first air inlet and the first air outlet are arranged opposite to each other with respect to the gap; and The fan is arranged at the air outlet. The switch according to claim 19, wherein the first side is further provided with an insertion port for accommodating the line card portion; and The air inlet includes a second air inlet, and the second air inlet is arranged opposite to the line clamp portion. The switch according to any one of claims 13 to 20, wherein: The switch further comprises a hard disk bearing portion; the hard disk bearing portion is movably disposed in the housing; The hard disk bearing portion is configured with a hard disk bearing position; The switching matrix unit is provided with a hard disk interface located in the housing; and The hard disk bearing portion is configured to be driven to move toward the hard disk interface or move away from the hard disk interface. The switch according to claim 21, wherein: The hard disk bearing part includes a bearing base, a hard disk fixing part and a driving part, the hard disk fixing part is movably connected to the bearing base, the driving part is connected to the hard disk fixing part, the hard disk bearing position is arranged on the hard disk fixing part, the driving part is configured to be rotatable along a first direction to drive the hard disk fixing part to move toward the hard disk interface, and the driving part is also configured to be rotatable along a second direction to drive the hard disk fixing part to move away from the hard disk interface, and the first direction and the second direction are opposite to each other.