CN222482281U - Docking device - Google Patents

Abstract

The utility model relates to a docking device, which includes: a busbar end for electrically connecting to a device to be tested; a first base, the first end of which is detachably electrically connected to the busbar end; a second base, the first end of which is electrically connected to the second end of the first base, and one of the first end of the second base and the second end of the first base is a convex surface and the other is a concave surface; and a shielding member for electrically connecting to the second end of the second base. The docking device provided by the present application can be quickly aligned during the test process of GIS without repeatedly adjusting the position, thereby improving the test efficiency.

Description

Butt joint device

Technical Field

The utility model relates to the technical field of testing, in particular to a butt joint device.

Background

In the manufacturing process of the GIS (Gas Insulated Switchgear, gas-insulated metal-enclosed switchgear), a factory test is a final verification link of manufacturing, and whether the manufactured GIS is good or not needs to be verified.

In the conventional technology, in the test process of the GIS, the bus end is required to be connected with the transformer, and the bus end is generally inserted into a connecting port of the transformer after being integrally lifted. However, the assembly mode is complex, the centering is difficult, and repeated adjustment is often required to realize good contact after butt joint.

Disclosure of utility model

Based on this, it is necessary to provide a docking device for the problem of complex assembly in the GIS verification process.

A docking device comprises a bus end, a first base, a second base and a shielding piece, wherein the bus end is used for being electrically connected with equipment to be tested, the first end of the first base is detachably and electrically connected with the bus end, the first end of the second base is electrically connected with the second end of the first base, one of the first end of the second base and the second end of the first base is a convex surface, the other of the first end of the second base and the second end of the first base is a concave surface, and the shielding piece is used for being electrically connected with the second end of the second base.

In one embodiment, the first end of the first base is provided with a first slot, and the bus bar end extends into the first slot to be electrically connected with the first base.

In one embodiment, the first base is provided with a first spring contact finger on a side wall of the first slot, and the bus end is electrically connected with the first base through the first spring contact finger.

In one embodiment, the shielding member is provided with a second slot, a second spring contact finger is arranged on the side wall of the second slot, and the second base extends into the second slot and is electrically connected with the shielding member through the second spring contact finger.

In one embodiment, the second end of the first base is a convex arc surface, and the first end of the second base is at least partially a concave arc surface matched with the second end of the first base.

In one embodiment, the second base includes a first connector and a second connector electrically connected to the first connector, the first end of the first connector is configured to be connected to the first base, and the second connector is detachably electrically connected to the shield.

In one embodiment, the first connector and the second connector are connected by a current lead, and the second connector is provided with a fastener for fixing the current lead.

In one embodiment, the second end of the first connecting member is movably connected to the second connecting member by an elastic member, the first connecting member being movable between a relaxed position and a contracted position, the elastic member being adapted to generate a restoring force towards the relaxed position when the first connecting member is in the contracted position.

In one embodiment, the second connecting piece is provided with a first opening, the elastic piece is arranged in the first opening, and the first connecting piece stretches into the first opening and abuts against the elastic piece.

In one embodiment, the second connecting piece comprises a second opening and a connecting hole for connecting the first opening and the second opening, the aperture of the connecting hole is smaller than that of the first opening so as to form a step, the second end of the first connecting piece penetrates through the first opening and the connecting hole and then stretches into the second opening, the elastic piece is sleeved on the first connecting piece and is abutted to the step, and a limiting piece with the diameter larger than that of the connecting hole is sleeved on the part of the first connecting piece stretching into the second opening.

The butt joint device comprises a bus end, a first base, a second base and a shielding piece. The bus end is used for being electrically connected with equipment to be tested, the bus end is detachably and electrically connected with the first base, the first base is electrically connected with the second base, the shielding piece is electrically connected with the second base, and the second base is correspondingly connected with the shielding piece in a three-phase mode, so that a conducting test structure is formed. The GIS product to be tested is connected with the bus end, and the bus end is detachably connected with the first base, so that the bus end can be independently detached, and the GIS product to be tested is convenient to install. The first base and the third base are embedded through the convex surface and the concave surface, and are aligned rapidly without repeated adjustment when being lifted and matched, so that the alignment efficiency can be improved. The docking device provided by the application can be aligned quickly in the GIS test process, does not need to adjust the position repeatedly, and improves the test efficiency.

Drawings

FIG. 1 is a schematic view of a docking mechanism in one embodiment;

FIG. 2 is a schematic view of a second base driving a pressing elastic member according to an embodiment.

The reference numerals comprise 100 parts of bus terminals, 200 parts of first bases, 210 parts of first spring contact fingers, 300 parts of second bases, 310 parts of first connectors, 320 parts of second connectors, 330 parts of guide wires, 340 parts of fasteners, 350 parts of fastening bolts, 360 parts of elastic parts, 370 parts of limiting parts, 400 parts of shielding parts.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

GIS is a type of switchgear commonly used in high voltage power systems. The GIS adopts a closed metal shell and insulating gas (usually hydrogen sulfide) filling design, and has the advantages of small occupied area, good insulating property, high reliability, strong anti-fouling capability and the like compared with the traditional open type switch equipment.

In the GIS manufacturing process, factory test is the final verification link of manufacturing, and in the test process, the main bus of the GIS product to be tested needs to be in three-phase butt joint on the connection interface of the armored transformer. If the fastening transition tool is installed on the three-phase conductor of the main bus, then the product and the bus end are integrally lifted and then are simultaneously inserted into the three-phase connector of the armored transformer by the main bus three-phase transition tool, the situation is complex in assembly and difficult in three-phase simultaneous centering, and the three phases are always required to be repeatedly adjusted to achieve good contact after butt joint, so that through-flow is ensured.

In order to solve the above-mentioned technical problems, referring to fig. 1, fig. 1 shows a schematic structural diagram of a docking device according to an embodiment of the present utility model, and the docking device includes a bus-bar terminal 100, a first base 200, a second base 300, and a shielding member 400. The bus terminal 100 is configured to be electrically connected to a device to be tested, where the device to be tested may be a GIS to be tested, for example, a 252 type GIS. Illustratively, the three phases of the bus bar end 100 are electrically connected to the three-phase circuit of the GIS, respectively. The bus terminal 100 is detachably and electrically connected to the first base 200, the first base 200 is electrically connected to the second base 300, the shielding member 400 is electrically connected to the second base 300, and the second base 300 is correspondingly connected to the shielding member 400 in a three-phase manner, so that a conductive test structure is formed. GIS shield 400 refers to a conductor structure for shielding electric and magnetic fields, which are typically made of a metallic material, such as aluminum, copper, or the like, having good electrical conductivity.

Specifically, the first end of the first base 200 is detachably and electrically connected to the bus bar end 100, and the bus bar end 100 is not always connected to the first base 200. The bus bar end 100 is separated from the first base 200 during the non-test process, and the bus bar end 100 is assembled with the first base 200 after the GIS to be tested is connected to the bus bar end 100 during the test process. Compared with the condition of constant fixed connection, when the bus bar end 100 is separated from the first base 200, the independent bus bar end 100 has smaller mass, and is convenient to be connected with a GIS.

The second end of the first base 200 is electrically connected to the first end of the second base 300, and the second end of the second base 300 is electrically connected to the shield 400. GIS through flow in the test process can be realized. One of the first end of the second base 300 and the second end of the first base 200 is convex, and the other is concave, so that the first base 200 and the second base 300 can be engaged and matched. The bus terminal 100 is assembled on the first base 200 and then is docked, in the docking process, the second end of the first base 200 and the first end of the second base 300 can be connected by means of embedding and matching by lifting the first base 200, and the alignment speed can be improved by means of setting a specific embedding and matching structure.

In one implementation, the second end of the first base 200 is convex, the first end of the second base 300 is concave, and in another implementation, the second end of the first base 200 is concave, and the first end of the second base 300 is convex. In one embodiment, the second end of the first base 200 is a convex arc surface, such as a sphere, where the first base 200 forms a ball head device, and the first end of the second base 300 is at least partially a concave arc surface matching the second end of the first base 200. By this arrangement, when the first base 200 is lifted to be in contact with the second base 300, the first base can be naturally aligned, and the alignment efficiency can be improved. Alternatively, the first end of the second base 300 may be a complete arc surface, or may be an arc surface formed by a plurality of contacts.

In another implementation, the first base 200 is sleeved with a first housing, the first housing is sleeved with a first housing flange, the second base 300 is sleeved with a second housing, and the second housing is sleeved with a second housing flange. After the first and second bases 200 and 300 are aligned, the first and second housings are coupled by the first and second housing flanges to increase the mechanical strength of the alignment of the two. After the test is completed, the first and second bases 200 and 300 may be separated again by unfastening the first and second housing flanges.

The docking apparatus includes a bus bar terminal 100, a first base 200, a second base 300, and a shield 400. The bus end 100 is used for being electrically connected with a device to be tested, the bus end 100 is detachably and electrically connected with the first base 200, the first base 200 is electrically connected with the second base 300, the shielding piece 400 is electrically connected with the second base 300, and the second base 300 is correspondingly connected with the shielding piece 400 in a three-phase mode, so that a conducting test structure is formed. The GIS product to be tested is connected with the bus bar end 100, and the bus bar end 100 is detachably connected with the first base 200, so that the bus bar end 100 can be independently detached, and the GIS product to be tested is convenient to install. The first and third bases 200 and 300 are aligned rapidly without repeated adjustment at the time of lifting and matching by the convex and concave fitting, and can improve alignment efficiency. The docking device provided by the application can be aligned quickly in the GIS test process, does not need to adjust the position repeatedly, and improves the test efficiency.

Illustratively, the bus bars refer to the primary conductive paths or concentrated wires used to connect the various devices, and the bus bars in GIS are typically made of highly conductive materials such as copper or aluminum alloys. The bus in the GIS plays a role in transmitting electric energy and distributing electric energy. It connects various devices in the substation including generators, transformers, capacitors, circuit breakers, etc. The bus bars are connected to these devices by struts, connectors or joints, which carry current and electrical energy. Optionally in GIS the bus system is typically divided into two main parts, a main bus and a branch bus. The main bus is the core part responsible for introducing electrical energy from the main power supply of the substation to the individual devices. The branch bus then distributes the electrical energy from the main bus to the different devices.

In an exemplary embodiment, the first end of the first base 200 is provided with a first slot, and the bus bar end 100 extends into the first slot to be electrically connected with the first base 200. Illustratively, the first slot may be matched to the size specification of the GIS to be tested such that the GIS is receivable in the first slot. In one implementation, the first base 200 is provided with a first spring finger 210 on a side wall of the first slot, and the first spring finger 210 is disposed around the side wall of the first slot, and the busbar end 100 is electrically connected to the first base 200 through the first spring finger 210. Before use, the first spring contact finger 210 is mounted on the first base 200 to form a product end connecting component, when the bus bar end 100 is mounted on the first base 200, the first spring contact finger is in a compressed state, so that the first base 200 and the bus bar end are ensured to be conducted and not to fall down,

The spring finger is made of an elastic material, such as spring steel or copper alloy, and has elastic deformation characteristics. The primary function of the spring fingers is to provide stable electrical contact and connection. It generally assumes a curved shape and can establish a reliable connection between two circuit elements or wires. When two elements or wires are inserted into the spring fingers, the elastic material will exert a certain pressure, so that a good contact is formed between the contacts and the elements or wires. In this embodiment, the first spring finger can maintain a good electrical connection between the busbar end 100 and the first base 200.

In another exemplary embodiment, the shielding member 400 is provided with a second slot, a second spring contact finger is disposed on a sidewall of the second slot, the second spring contact finger is disposed around the sidewall of the second slot, the second base 300 extends into the second slot, such that the second spring contact finger is sleeved outside the second base 300, and the second base 300 is electrically connected with the shielding member 400 through the second spring contact finger. At this time, the second spring finger in the shielding member 400 is in a compressed state, so as to ensure that the second base 300 and the shielding member 400 are conducted and not fall off.

The shield 400 may be a shield conductor having an inner receiving space, and the second slot may communicate with the inner receiving space. The second spring finger functions similarly to the first spring finger 210, and the second spring finger enables the second base 300 and the shield 400 to maintain a good electrical connection. Alternatively, the number of second spring fingers may be four or others.

In an exemplary embodiment, the second base 300 includes a first connector 310 and a second connector 320 electrically connected to the first connector 310, a first end of the first connector 310 being for connection with the first base 200, the second connector 300 being detachably electrically connected to the shield 400.

In one embodiment, the first connector 310 and the second connector 320 are connected by a current lead 330, and the second connector 320 is provided with a fastener 340, the fastener 340 being used to secure the current lead 330. Illustratively, the fastening member 340 may be a fastening screw provided at a sidewall of the second connector 320, and the guide wire 330 is tightened by the fastening screw after being inserted into a groove of the fastening screw. In one possible manner, the first connector 310 of the current lead 330 is provided with a fastening bolt 350, and the fastening bolt 350 electrically connects the current lead 330 to the first connector 310 by screwing.

In one embodiment, the second end of the first connecting member 310 is movably connected to the second connecting member 320 by an elastic member 360, the first connecting member 310 being movable between a relaxed position and a contracted position, the elastic member 360 being adapted to generate a restoring force towards the relaxed position when the first connecting member 310 is in the contracted position.

Alternatively, the elastic member 360 may be a spring structure, the spring having elastic potential energy when compressed, the elastic potential energy of the spring referring to energy stored due to its elastic characteristics when the spring is compressed or stretched. This energy may be released when the spring returns to its original configuration, such as by vibration or spring force, thereby creating a spring force against the first connector 310.

When the first connecting member 310 is at the relaxed position, no or less pressure is generated on the elastic member 360, the elastic member 360 is relaxed or less elastic, and when the first connecting member 310 is at the contracted position, the first connecting member 310 generates greater pressure on the elastic member 360, the elastic member 360 is compressed and deformed, and further has elastic potential energy for restoring the relaxed state, and a restoring force towards the relaxed position is generated to reversely generate pressure on the first connecting member 310.

As shown in fig. 2, fig. 2 illustrates a schematic structure in which the first base 200 moves toward the first connector 310 to compress the elastic member 360 to contract in one embodiment. In this embodiment, the first connecting member 310 is initially at the diastolic position, and after the first base 200 approaches and presses the first connecting member 310, the first connecting member 310 presses the elastic member 360, the elastic member 360 contracts to generate elastic potential energy, and a reverse pressure is generated on the first connecting member 310, so that the first base 200 and the first connecting member 310 are in closer contact, and excellent electrical conductivity is ensured.

In one implementation, the second connector 320 has a first opening, the elastic member 360 is disposed in the first opening, and the first connector 310 extends into the first opening and abuts against the elastic member 360. In this way, the first connecting piece 310 can generate displacement with a certain distance in the first opening, the first base 200 drives the first connecting piece 310 to extrude the elastic piece 360 in the first opening along the extending direction of the hole, and the elastic piece 360 generates reverse elastic force to the first connecting piece 310, so that the connection between the first connecting piece 310 and the first base 200 is tighter, and good conductive effect is ensured.

In one exemplary embodiment, the second connector 320 includes a second aperture and a connecting hole connecting the first aperture and the second aperture, i.e., the first aperture, the connecting hole, and the second aperture are in communication.

The aperture of the connecting hole is smaller than that of the first opening to form a step, and the elastic piece 360 is sleeved on the first connecting piece 310 and is abutted to the step. In this way, the step can provide a supporting force to the elastic member 360, and the step can serve as a supporting point when the first connection member 310 presses the elastic member 360. The second end of the first connecting piece 310 passes through the first opening and the connecting hole and then stretches into the second opening, and the part of the first connecting piece 310 stretching into the second opening is sleeved with a limiting piece 370 with the diameter larger than the aperture of the connecting hole, so that the displacement of the first connecting piece 310 is limited, and the first connecting piece 310 is prevented from being ejected out of the first opening under the action of the elastic piece 350.

In the docking device provided in this embodiment, the GIS connection busbar terminal 100 to be tested is used as a product busbar terminal, and the second base 200 is used as an armoured interface terminal. The product bus terminal is detachably connected with the first base 200 to realize plug and play, and the second base 300 and the shielding member 400 are detachably connected to realize plug and play. The first base 200 is inserted into the bus bar end of the product, and the second base 300 can directly lift the product to butt-joint the bus bar end of the product and the armoured interface end after being inserted into the shielding member 400. In the butt joint process, the spherical surface device of the product bus end is directly in press joint with the curved surface device of the armor interface end, and after the butt joint is completed, the spring at the press joint is stressed, so that the ball head device of the product bus end and the butt joint surface of the curved surface device of the armor interface end are automatically calibrated into line contact with certain pressure, and conduction is realized without intentional centering. The butt joint is realized through the bolt fixation of the shell flange at the bus end of the product and the shell flange at the armor interface end, and when the butt joint is dismantled, the shell flanges at the two ends are unfastened, and the direct separation of the three-phase conductors at the two ends is realized by hanging away the product.

The butt joint device provided by the embodiment has the advantages that the conductive static contact is contact finger press-connection type line contact and spring force press-connection line contact, the conductive performance is excellent, the butt joint mode is spring pressure action automatic calibration butt joint, manual centering butt joint is not needed, the use mode is plug and play, and redundant fastening actions are not needed. The invention has the advantages of plug and play, clear structure, convenient butt joint and simpler assembly.

The docking device provided by the embodiment is plug and play, clear in structure, convenient to dock and simple to assemble.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A docking device, comprising: Bus terminal, used for electrical connection with the device under test; a first base, wherein a first end of the first base is detachably electrically connected to the bus terminal; a second base, wherein a first end of the second base is electrically connected to a second end of the first base, and one of the first end of the second base and the second end of the first base is a convex surface and the other is a concave surface; and The shielding member is used to be electrically connected to the second end of the second base. 2 . The docking device according to claim 1 , wherein a first slot is formed at the first end of the first base, and the busbar end extends into the first slot to be electrically connected to the first base. 3 . The docking device according to claim 2 , wherein the first base is provided with a first spring contact finger on the side wall of the first slot, and the busbar end is electrically connected to the first base through the first spring contact finger. 4. The docking device according to claim 1, characterized in that the shielding member is provided with a second slot, a side wall of the second slot is provided with a second spring contact finger, the second base extends into the second slot, and is electrically connected to the shielding member through the second spring contact finger. 5 . The docking device according to claim 1 , wherein the second end of the first base is a convex arc surface, and the first end of the second base is at least partially a concave arc surface matching the second end of the first base. 6. The docking device according to claim 1 is characterized in that the second base includes a first connector and a second connector electrically connected to the first connector, the first end of the first connector is used to connect to the first base, and the second connector is detachably electrically connected to the shielding member. 7. The docking device according to claim 6, characterized in that the first connecting member and the second connecting member are connected by a guide wire, and the second connecting member is provided with a fastener, and the fastener is used to fix the guide wire. 8. The docking device according to claim 6 is characterized in that the second end of the first connecting member is movably connected to the second connecting member via an elastic member, the first connecting member can move between a relaxed position and a contracted position, and the elastic member is used to generate a restoring force toward the relaxed position when the first connecting member is in the contracted position. 9 . The docking device according to claim 8 , wherein the second connecting member has a first opening, the elastic member is disposed in the first opening, and the first connecting member extends into the first opening and abuts against the elastic member. 10. The docking device according to claim 9 is characterized in that the second connecting member includes a second opening and a connecting hole connecting the first opening and the second opening, the aperture of the connecting hole is smaller than the aperture of the first opening to form a step, and the second end of the first connecting member passes through the first opening and the connecting hole and then extends into the second opening; wherein the elastic member is sleeved on the first connecting member and abuts against the step, and the portion of the first connecting member extending into the second opening is sleeved with a limiting member whose diameter is larger than the aperture of the connecting hole.