CN119233610A - Air-cooled energy storage converter and converter unit - Google Patents
Air-cooled energy storage converter and converter unit Download PDFInfo
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- CN119233610A CN119233610A CN202411717825.5A CN202411717825A CN119233610A CN 119233610 A CN119233610 A CN 119233610A CN 202411717825 A CN202411717825 A CN 202411717825A CN 119233610 A CN119233610 A CN 119233610A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 59
- 230000017525 heat dissipation Effects 0.000 claims abstract description 52
- 238000009434 installation Methods 0.000 claims description 97
- 238000007789 sealing Methods 0.000 claims description 19
- 238000005192 partition Methods 0.000 claims description 17
- 238000012423 maintenance Methods 0.000 abstract description 9
- 238000001816 cooling Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 6
- 239000000306 component Substances 0.000 description 17
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000008358 core component Substances 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
- H05K7/1432—Housings specially adapted for power drive units or power converters
- H05K7/14325—Housings specially adapted for power drive units or power converters for cabinets or racks
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20945—Thermal management, e.g. inverter temperature control
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The application provides an air-cooled energy storage converter and a converter unit. According to the air-cooled energy storage converter and the converter unit, the air flow direction can be controlled by optimizing the structural layout and the air duct structure, so that smoothness of air flow and high cooling efficiency can be ensured, heat dissipation can be performed in a targeted manner, the air can flow according to a set route under the condition of internally arranging one fan, the problem of external fans or internal fans is avoided, and in the second aspect, different functional modules are arranged at different positions, and the heat dissipation paths of the power modules and the reactor are separated, so that heat interference among different modules can be avoided, heat is ensured not to be accumulated in the cabinet body, the overall heat dissipation efficiency can be improved, the special air duct design is convenient for dismounting the air duct and the internal module, the influence on the whole converter due to single module faults is reduced, and the convenience of maintenance can be improved.
Description
Technical Field
The application relates to the technical field of converters, in particular to an air-cooled energy storage converter and a converter unit.
Background
The energy storage converter is used as a core component of the energy storage system, the performance and the efficiency of the energy storage converter determine the grid-connected performance of the energy storage system, and the reliable and stable operation of the energy storage system is concerned.
In order to improve the heat dissipation efficiency, the conventional air-cooled energy storage converter is generally provided with an external fan or a plurality of internal fans, when the external fan is arranged, the external fan is easily influenced by weather and environment, the service life of the air-cooled energy storage converter is reduced, in addition, when the external fan is arranged, the external size of a cabinet body is increased, the damage risk in the transportation and installation process is increased, when the internal fans are arranged, any one of the internal fans fails, the whole machine cooling system cannot work normally, so that the converter cannot operate due to overhigh temperature, and the failure rate is improved.
Disclosure of Invention
In view of this, the present application provides an air-cooled energy storage converter and a converter unit, which are used for realizing efficient heat dissipation by optimizing the internal structure layout and the air duct structure under the condition of a built-in fan, so as to avoid the problems caused by an external fan or a built-in multi-fan.
Specifically, the application is realized by the following technical scheme:
The first aspect of the application provides an air-cooled energy storage converter which comprises a sealed cabinet body, a reactor, a power module, a fan, a control module and a wind channel component, wherein,
The inner cavity of the sealed cabinet body is divided into a first cavity and a second cavity by a vertical partition board, the first cavity is divided into a first upper installation chamber and a first lower installation chamber by a transverse partition board, the second cavity is divided into a second upper installation chamber and a second lower installation chamber by a transverse partition board, the first upper installation chamber, the first lower installation chamber, the second upper installation chamber and the second lower installation chamber are sealed and isolated, the first lower installation chamber and the second lower installation chamber are provided with external air inlets, and the first upper installation chamber and the second upper installation chamber are provided with external air outlets;
The control module is arranged in the first lower installation chamber, the fan is arranged in the second upper installation chamber, the reactor and the power module are arranged in the second lower installation chamber, and the power module is positioned above the reactor;
The air duct assembly comprises a mixed air duct, a first special air duct and a second special air duct which are respectively communicated with the mixed air duct, wherein the mixed air duct is arranged at the rear of the power module, and an air outlet of the mixed air duct is communicated with an air inlet of the fan;
The reactor is sleeved with a first air guide cover, an air outlet of the first air guide cover is communicated with an air inlet of the first special air duct, so that air is guided into the first special air duct from the lower part of the reactor through the first air guide cover, and is discharged out of the sealed cabinet body after passing through the mixed air duct and the fan;
The second special air duct is communicated with the heat dissipation air duct of the power module, so that air entering the power module enters the mixing air duct after passing through the heat dissipation air duct and the second special air duct, and is discharged out of the sealed cabinet body after passing through the mixing air duct and the fan;
The mixing air duct is provided with a first side air inlet and a second side air inlet, the first side air inlet is communicated with the first lower installation chamber, the second side air inlet is communicated with the second lower installation chamber, so that air entering the first lower installation chamber and the second lower installation chamber enters the mixing air duct through the side air inlet, and is discharged out of the sealed cabinet body after passing through the mixing air duct and the fan.
Optionally, the air inlet amount of the first side air inlet is adjustable;
And/or the number of the groups of groups,
The air inlet amount of the second side air inlet is adjustable;
And/or the number of the groups of groups,
The air inlet quantity of the first special air channel is adjustable.
Optionally, the mixed air duct is an L-shaped air duct, wherein,
The L-shaped air duct consists of a vertical air duct and a transverse air duct which are mutually communicated, wherein the lower port of the vertical air duct is communicated with the air outlet of the first special air duct, an air inlet is arranged at the position, opposite to the heat dissipation air duct, of the vertical air duct, and the second special air duct is communicated with the air outlet of the heat dissipation air duct and the air inlet;
The horizontal air channel is a groove-like air channel, a horizontal air outlet of the groove-like air channel is communicated with an air inlet of the fan, a first side air inlet is formed in a first side face, facing the first lower mounting chamber, of the groove-like air channel, and a second side air inlet is formed in a second side face, facing the second lower mounting chamber, of the groove-like air channel.
Optionally, the first special air duct is composed of a cover-shaped air duct and a vertical air duct which are mutually communicated, an air inlet of the cover-shaped air duct is in sealing connection with an air outlet of the first air guide cover, and an air outlet of the vertical air duct is communicated with the mixed air duct.
Optionally, the first side air inlet, the second side air inlet and/or the first special air duct are provided with an air quantity adjusting valve, so that the air quantity is adjusted through the air quantity adjusting valve.
Optionally, the air-cooled energy storage converter further comprises a standby power module, and the standby power module is installed in the first upper installation chamber.
Optionally, the front door plates of the first lower installation chamber and the second upper installation chamber are respectively provided with two external air inlets.
Optionally, an external air outlet is provided on the front door plate and the back plate of the first upper installation chamber and the second upper installation chamber.
Optionally, a sealing cover is sleeved on the fan, and one side of the sealing cover facing the front door plate and one side of the sealing cover facing the back plate are hollow structures.
According to a second aspect of the application, a converter set is provided, comprising at least two sets of air-cooled energy storage converters as provided in the first aspect of the application.
According to the air-cooled energy storage converter and the converter unit, firstly, the structural layout and the air duct structure are optimized, so that the flow direction of air can be controlled, the smoothness of air flow and the high cooling efficiency can be ensured, the air can be cooled in a targeted manner, the air can flow according to a set route under the condition that one fan is built in, the purpose of cooling is achieved, the problems existing when the fan is arranged outside and a plurality of fans are built in can be avoided, secondly, different functional modules are arranged at different positions, the heat dissipation paths of the power modules and the reactor are separated, the heat between the different modules can be prevented from interfering with each other, the heat cannot be gathered in the cabinet body, and the overall heat dissipation efficiency can be improved.
In addition, according to the air-cooled energy storage converter provided by the application, the air inlet quantity of the first side air inlet is adjustable, the air inlet quantity of the second side air inlet is adjustable, and the air inlet quantity of the first special air channel is controllable, so that the air quantity can be distributed by adjusting the air inlet quantity to control the temperature rise of each area, so that the temperature rise of each area is maintained in a design range, the phenomenon of uneven heat dissipation is avoided, the heat dissipation balance is realized, the problem of damage to components due to uneven heat dissipation is further avoided, the damage to components is reduced, and the maintenance cost is reduced.
Drawings
Fig. 1 is a front view of an air-cooled energy storage converter according to an embodiment of the present application;
fig. 2 is a right side view of an air-cooled energy storage converter according to an embodiment of the present application;
fig. 3 is a left side view of an air-cooled energy storage converter according to a first embodiment of the present application;
Fig. 4 is an external schematic diagram of an air-cooled energy storage converter according to a first embodiment of the present application;
FIG. 5 is a schematic diagram of a mixing duct according to an exemplary embodiment of the present application;
FIG. 6 is a schematic diagram of a power module according to an exemplary embodiment of the present application;
Fig. 7 is a diagram illustrating a relationship between a reactor and a first dedicated air duct according to an exemplary embodiment of the present application.
Reference numerals illustrate:
1, sealing a cabinet body;
2, a reactor;
3, a power module;
4, a fan;
5, a control module;
6, an air duct assembly;
7, a first wind scooper;
8, a standby power supply module;
11, a first cavity;
12, a second cavity;
13, an external air inlet;
14, an external air outlet;
111 a first upper mounting chamber;
112 a first lower mounting chamber;
121a second upper mounting chamber;
122 a second lower mounting chamber;
31, a heat dissipation air duct;
61, mixing air duct;
62, a first special air duct;
63, a second special air duct;
611, a first side air inlet;
612 a second side inlet;
613, an air inlet;
614 horizontal air outlet.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this disclosure, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the application. The term "if" as used herein may be interpreted as "at..once" or "when..once" or "in response to a determination", depending on the context.
The energy storage converter is used as a core component of the energy storage system, the performance and the efficiency of the energy storage converter determine the grid-connected performance of the energy storage system, the reliable and stable operation of the energy storage system is concerned, the air-cooled energy storage converter is compact in space, large in heating value and long in operation, the service lives of components are reduced, and the overall efficiency and the service life of equipment are influenced. Therefore, the air-cooled converter is optimally designed while meeting various requirements, so that the high-temperature problem in the operation of the converter is effectively improved, and the long-term stable operation of the energy storage converter is ensured to become a hot spot of current research.
In order to meet the heat dissipation requirements of devices in power cabinets, grid-connected cabinets and the like, the existing air-cooled energy storage converter is generally provided with an external fan or a plurality of internal fans. When the fans are arranged outside the cabinet body and are easy to damage and the service life is reduced, in addition, when the fans are arranged outside the cabinet body, the external size of the cabinet body is increased, the appearance is not attractive, the damage risk in the transportation and installation process is increased, further, when the fans are arranged inside the cabinet body, the cost is increased, in the first aspect, the fans are required to be provided with a multi-air-duct design, surplus allowance is increased, the utilization efficiency of the fans is reduced, in the third aspect, the cooling system of the whole machine cannot work normally due to faults of any fan, the temperature of the converter is too high, the fault rate is improved, in the fourth aspect, when the fans are arranged inside the cabinet body, the power module and the air duct are required to be sealed, the power module is required to be disassembled when the power module is maintained, even the air duct is required to be disassembled, the maintenance is difficult, and air leakage is easy to occur, in addition, when the fans are arranged inside, the components are mutually influenced, the radiating effect of the components is poor, and the radiating effect of the components is poor.
In view of this, the present application provides an air-cooled energy storage converter and a converter unit, which are used for realizing efficient heat dissipation by optimizing the internal structure layout and the air duct structure under the condition of a built-in fan, so as to avoid the problems caused by an external fan or a built-in multi-fan.
Specific examples are given below to describe the technical solution of the present application in detail.
Fig. 1 is a front view of an air-cooled energy storage converter according to an embodiment of the present application, fig. 2 is a right side view of the air-cooled energy storage converter according to an embodiment of the present application, fig. 3 is a left side view of the air-cooled energy storage converter according to an embodiment of the present application, fig. 4 is an external schematic diagram of the air-cooled energy storage converter according to an embodiment of the present application (in which fig. 4 is an external front view, fig. 4 is an external rear view), and fig. 5 is a schematic diagram of a hybrid duct according to an exemplary embodiment of the present application. Referring to fig. 1 to 5, the air-cooled energy storage converter provided in this embodiment includes a sealed cabinet 1, a reactor 2, a power module 3, a fan 4, a control module 5 and an air duct assembly 6, wherein,
The inner cavity of the sealed cabinet body 1 is divided into a first cavity 11 and a second cavity 12 by a vertical partition board, the first cavity 11 is divided into a first upper installation chamber 111 and a first lower installation chamber 112 by a transverse partition board, the second cavity 12 is divided into a second upper installation chamber 121 and a second lower installation chamber 122 by a transverse partition board, the first upper installation chamber 111, the first lower installation chamber 112, the second upper installation chamber 121 and the second lower installation chamber 122 are sealed and isolated, the first lower installation chamber 112 and the second lower installation chamber 122 are provided with an external air inlet 13, and the first upper installation chamber 111 and the second upper installation chamber 121 are provided with an external air outlet 14;
The control module 5 is installed in the first lower installation chamber 112, the fan 4 is installed in the second upper installation chamber 121, the reactor 2 and the power module 3 are installed in the second lower installation chamber 122, and the power module 3 is positioned above the reactor 2;
The air duct assembly 6 comprises a mixed air duct 61, a first special air duct 62 and a second special air duct 63 which are respectively communicated with the mixed air duct 61, wherein the mixed air duct 61 is arranged at the rear of the power module 3, and an air outlet of the mixed air duct 61 is communicated with an air inlet of the fan 4;
A first air guide cover 7 is sleeved on the reactor 2, and an air outlet of the first air guide cover 7 is communicated with an air inlet of the first special air duct 62, so that air is guided into the first special air duct 62 from the lower part of the reactor 2 through the first air guide cover 7 and is discharged out of the sealed cabinet 1 after passing through the mixed air duct 61 and the fan 4;
the second dedicated air duct 63 is communicated with the heat dissipation air duct of the power module 3, so that the air entering the power module 3 enters the mixing air duct 61 after passing through the heat dissipation air duct and the second dedicated air duct 63, and is discharged out of the sealed cabinet 1 after passing through the mixing air duct 61 and the fan 4;
The mixing duct 61 has a first side air inlet 611 and a second side air inlet 612, the first side air inlet 611 communicates with the first lower installation chamber 112, and the second side air inlet 612 communicates with the second lower installation chamber 122, so that air entering the first lower installation chamber 112 and the second lower installation chamber 122 enters the mixing duct 61 through the side air inlet and is discharged out of the sealed cabinet 1 after passing through the mixing duct 61 and the blower 4.
Specifically, referring to fig. 4, the sealing cabinet body 1 is of a sealing structure, and is used for preventing dust, greasy dirt and water vapor from entering the interior of the energy storage converter cabinet body, so that the service life of the air-cooled energy storage converter is prolonged, and the maintenance cost of the air-cooled energy storage converter is reduced.
It will be appreciated that the sealed cabinet 1 may comprise an outer housing and a frame supporting the outer housing, and that the outer housing may be a cuboid structure surrounded by six rectangular plates. Further, the inner cavity of the sealed cabinet body 1 is divided into four parts by a vertical partition plate and a transverse partition plate, namely a first upper installation chamber 111, a first lower installation chamber 112, a second upper installation chamber 121 and a second lower installation chamber 122, and the installation chambers are sealed and isolated.
Specifically, the vertical partition plate may be a rectangular plate, which is vertically placed, and has the same length as the height of the sealed cabinet body 1, and the same width as the sealed cabinet body 1 (it should be noted that, the length in the front-rear direction shown in fig. 1 is the width of the sealed cabinet body 1, the length in the left-right direction is the length of the sealed cabinet body 1, and the length in the up-down direction is the height of the sealed cabinet body), and it divides the inner cavity into two left and right installation chambers, and for convenience of description, the left installation chamber is denoted as the first cavity 11, and the right installation chamber is denoted as the second cavity 12. Further, the transverse partition plate is also a rectangular plate, and is horizontally placed, the length of the transverse partition plate is equal to that of the sealed cabinet body 1, the width of the transverse partition plate is equal to that of the sealed cabinet body 1, the first cavity 11 and the second cavity 12 are divided into an upper installation chamber and a lower installation chamber, for convenience of explanation, the upper installation chamber is referred to as an upper installation chamber, and the upper installation chamber is referred to as a lower installation chamber. It should be noted that, four faces of the vertical partition plate and the transverse partition plate can be in close contact with the inner cavity face of the sealed cabinet body 1, so as to achieve the sealing effect.
Optionally, referring to fig. 4, in a possible implementation manner, two external air inlets 13 are provided on front door panels of the first lower mounting chamber 112 and the second upper mounting chamber 121. An external air outlet 14 is provided on the front door panel and the back panel of the first upper installation chamber 111 and the second upper installation chamber 121.
Specifically, the specific shapes of the external air inlet 13 and the external air outlet 14 are set according to actual needs, and in this embodiment, the specific shapes are not limited. For example, in one embodiment, the external air inlet 13 and the external air outlet 14 are grid-shaped air inlets, and in another embodiment, the external air inlet 13 and the external air outlet 14 may be grid-shaped air inlets.
Specifically, referring to fig. 1 to 3, the control module 5 is installed in the first lower installation chamber 112, the fan 4 is installed in the second upper installation chamber 121, and the reactor 2 and the power module 3 are installed in the second lower installation chamber 122 in this order from bottom to top. Further, referring to fig. 2, it can be understood that the reactor 2 is installed at the rear side of the power module 3, that is, the reactor 2 is installed at a position close to the back plate, and the power module 3 is installed at a position close to the front door plate.
It should be noted that, in one possible implementation, the control module 5 may be a revolving door structure, which may be rotated by 90 ° to facilitate maintenance of other modules behind the control module 5. Referring to fig. 3, in one possible implementation, a dc pre-charging assembly may be mounted behind the control module 5, and further, a circuit breaker may be mounted behind the dc pre-charging assembly.
Referring to fig. 1, in an alternative implementation manner, a sealing cover is sleeved on the fan 4, and a side of the sealing cover facing the front door panel and a side of the sealing cover facing the back panel are hollow structures.
Specifically, the fan 4 is sleeved with the sealing cover, so that on one hand, the fan 4 can be protected to a certain extent, and the service life of the fan 4 is prolonged. On the other hand, the seal cover can restrict the flow direction of the wind and allow the wind to flow out in a predetermined direction. For example, in this example, set up the seal cover towards one side of preceding door plant and towards one side of backplate as hollow out construction to set up the air outlet in the corresponding position department of preceding door plant back and backplate department, like this, can guarantee the normal air-out of fan 4, make fan 4 air-out more smooth and easy, guarantee radiating effect and the work efficiency of fan 4.
The following describes an air duct structure of the air-cooled energy storage converter provided in this embodiment:
Specifically, fig. 6 is a schematic diagram of a power module according to an exemplary embodiment of the present application. Fig. 6a is a schematic diagram of a power module at a certain angle, and fig. 6B is a schematic diagram of a power module at another angle. Referring to fig. 2 and fig. 6, the power module 3 has a heat dissipation air duct 31, and cold air enters the heat dissipation air duct 31 through the lower end of the power module 3 and flows from the heat dissipation air duct 31 to the second dedicated air duct 63.
Specifically, referring to fig. 6, it can be understood that the power module 3 includes a radiator and an IGBT, wherein the radiator has a heat dissipation air duct 31 therein, and the IGBT is located in front of the heat dissipation air duct 31. Further, the heat dissipation air duct 31 is disposed vertically to and communicates with the second dedicated air duct 63.
Further, referring to fig. 2, 5 and 6, in an alternative implementation manner, the mixing duct 61 is an L-shaped duct, where,
The L-shaped air duct consists of a vertical air duct and a transverse air duct which are mutually communicated, wherein the lower port of the vertical air duct is communicated with the air outlet of the first special air duct 62, an air inlet 613 is arranged at the position, opposite to the heat dissipation air duct 31, of the vertical air duct, and the second special air duct 63 is communicated with the air outlet of the heat dissipation air duct 31 and the air inlet 613;
The transverse air duct is a groove-like air duct, a horizontal air outlet 614 of the groove-like air duct is communicated with an air inlet of the fan 4, a first side air inlet 611 is formed in a first side surface of the groove-like air duct facing the first lower mounting chamber 112, and a second side air inlet 612 is formed in a second side surface of the groove-like air duct facing the second lower mounting chamber 122.
Specifically, referring to fig. 2 and 5, the mixing air duct 61 is an L-shaped air duct, and is composed of a vertical air duct and a horizontal air duct that are mutually communicated, wherein a lower port of the vertical air duct forms an air inlet of the mixing air duct 61 and is used for communicating the mixing air duct 61 with the first special air duct 62, and an upper port of the horizontal air duct forms a horizontal air outlet 614 of the mixing air duct 61 and is used for communicating the mixing air duct 61 with an air inlet of the fan 4.
Further, referring to fig. 2, 5 and 6, an air inlet 613 matching with the heat dissipation air duct 31 is disposed at a position opposite to the heat dissipation air duct 31 of the power module 3 in the vertical air duct of the hybrid air duct 61, and a second dedicated air duct 63 is disposed between the air inlet 613 and the heat dissipation air duct 31 for communicating the air outlet of the heat dissipation air duct 31 with the air inlet 613 of the vertical air duct.
It is to be understood that the second dedicated air duct 63 may be a hollow cylindrical body, and its cross section may be circular or rectangular, which is not limited in this embodiment. The air inlet of the second special air duct 63 is provided with an installation part connected with the air outlet of the heat dissipation air duct 31, the air outlet of the second special air duct 63 is provided with an installation part connected with the air inlet 613, the connection mode of the air inlet of the second special air duct 63 and the air outlet of the heat dissipation air duct 31, and the connection mode of the air outlet of the second special air duct 63 and the air inlet 613 can be fixedly connected through bolts/screws or fixedly connected through bonding, and in the embodiment, the connection mode is not limited.
Further, the transverse air duct is a groove-like air duct, a horizontal air outlet 614 of the groove-like air duct is fixedly communicated with an air inlet of the fan 4, a first side air inlet 611 is arranged on a first side surface of the groove-like air duct towards the first lower installation chamber 112 so that hot air in the first lower installation chamber 112 enters the mixed air duct 61, a second side air inlet 612 is arranged on a second side surface of the groove-like air duct towards the second lower installation chamber 122 so that hot air in the second lower installation chamber 122 enters the mixed air duct 61, and finally the air in the mixed air duct 61 is discharged out of the sealed cabinet body 1 through the fan 4.
Specifically, the shapes of the first side air inlet 611 and the second side air inlet 612 are set according to actual needs, and in this embodiment, the shapes are not limited. For example, in one embodiment, the first side air inlet 611 and the second side air inlet 612 have the same shape and are rectangular openings, and in another embodiment, the first side air inlet 611 has a rectangular opening and the second side air inlet 612 has a side air inlet formed by a plurality of circular holes.
The fixing manner of the mixing duct 61 and the first dedicated duct 62, and the fixing manner of the mixing duct 61 and the air inlet of the fan 4 are also set according to actual needs, and in this embodiment, the fixing manner is not limited. For example, in the specific implementation, the connection may be fixed by bolts/screws, or may be fixed by bonding.
Further, fig. 7 is a diagram illustrating a matching relationship between a reactor and a first dedicated air duct according to an exemplary embodiment of the present application, referring to fig. 2 and 7, a first air guiding cover 7 is sleeved on the reactor 2, and the air outlet of the first air guiding cover 7 is matched with the air inlet of the first dedicated air duct 62, so that air enters the first dedicated air duct 62 from the lower portion of the reactor 2 through the first air guiding cover 7, and is discharged from the sealed cabinet body through the mixing air duct 61 and the fan 4. The first duct 62 of the first air guide cover 7 may be fixedly connected to the first duct by bolts/screws, or may be fixedly connected to the first duct by adhesion. In this embodiment, this is not limited.
Specifically, referring to fig. 7, in one possible implementation manner, the first dedicated air duct 62 is composed of a cover-shaped air duct and a vertical air duct that are mutually communicated, an air inlet of the cover-shaped air duct is in sealing connection with an air outlet of the first air guiding cover 7, and an air outlet of the vertical air duct is communicated with the mixing air duct 61.
In order to ensure that the air duct assembly 6 maintains good stability in a complex environment, the air duct assembly 6 is generally made of a material having good mechanical strength, high temperature resistance and corrosion resistance, and therefore, the material for making the air duct assembly 6 is set according to actual needs, and in this embodiment, the air duct assembly is not limited thereto. For example, in one embodiment, the duct assembly 6 may be made of aluminum, aluminum alloy, copper-aluminum composite, or the like. The materials for manufacturing the mixing duct 61, the first dedicated duct 62, and the second dedicated duct 63 may be the same or different, and may be selected according to actual needs, and in this embodiment, the materials are not limited.
The heat dissipation principle of the heat radiator provided by the application is described below:
Specifically, please continue to refer to fig. 2, through the external air inlet 13 of the sealed cabinet body 1, air enters the first cavity 11 and the second cavity 12 from the sealed cabinet body 1, the whole cabinet is sealed, and cold air flows along the installation design route, specifically as follows:
Specifically, in the first cavity 11 (components are uniformly arranged in the first cavity 11, components with no great heat productivity) wind enters the first lower installation chamber 112 from the external air inlet 13 on the front door panel of the first lower installation chamber 112, the control module 5 is installed in the first lower installation chamber 112, the wind enters from the bottom of the first lower installation chamber 112, when the wind flows from bottom to top and reaches the top of the first lower installation chamber 112, the cold wind is changed into hot wind by the heat generated by the components in the first lower installation chamber 112, further, the hot wind enters the mixed air duct 61 through the first side air inlet 611 of the mixed air duct 61, the mixed air duct 61 is in sealing connection with the fan 4, and finally the hot wind is discharged from the external air outlet 14 to the outside of the sealed cabinet 1 through the fan 4.
It should be noted that, in one possible implementation manner, the air intake of the first side air inlet 611 is adjustable, the first side air inlet 611 is connected with the mixing air duct 61 in a sealing manner, and the air amount inside the first cavity 11 can be controlled by adjusting the air intake of the first side air inlet 611, so as to adjust the heat dissipation temperature inside the first cavity 11, and improve the efficiency of the fan.
Further, in the second cavity 12, after entering from the external air inlet 13 of the second lower installation chamber 122, the cold air is divided into three paths of air, that is, three flow paths exist, specifically as follows:
First flow path referring to fig. 2 and 6, the red arrows in fig. 6 represent the flow path of wind inside the power module 3. Specifically, the air flows into the heat dissipation air duct 31 of the power module 3 from the bottom of the heat dissipation air duct 31 of the power module 3, further, referring to fig. 2, the heat dissipation air duct 31 is communicated with the mixed air duct 61 through the second dedicated air duct 63, so that after the air enters the heat dissipation air duct 31, the air is discharged out of the sealed cabinet body 1 through the second dedicated air duct 63, and finally through the mixed air duct 61 and the fan 4.
The heat dissipation air duct 31, the second dedicated air duct 63, and the mixing air duct 61 are hermetically connected. In addition, the power module 3 is individually fixed by bolts, and the second dedicated air duct 63 and the mixing air duct 61 are not affected when the power module 3 is disassembled and maintained.
In the second flow path, referring to fig. 2 and 7, wind flows in from the bottom of the reactor 2, enters the first dedicated air duct 62 through the first air guiding cover 7, finally enters the mixing air duct 61, and is discharged from the external air outlet 14 through the fan 4.
The first wind scooper 7 is connected to the first dedicated wind channel 62, and the first dedicated wind channel 62 is connected to the mixed wind channel 61 by bolts, so that when the reactor 2 is maintained, only the connection between the first wind scooper 7 and the first dedicated wind channel 62 needs to be removed, and other wind channels are not affected.
In addition, in a possible implementation manner, the air inlet amount of the first special air duct 62 is adjustable, so that the air inlet amount of the first air guide cover 7 can be controlled, and the temperature of the reactor 2 can be adjusted more efficiently through the fan.
Third flow path it is noted that the third wind is used to remove heat from other components in the second lower mounting chamber 122. Specifically, the air in the second lower installation chamber 122 enters the mixing duct 61 from the second side air inlet 612 of the mixing duct 61, and is discharged from the external air outlet 14 by the blower 4.
The air inlet amount of the second side air inlet 612 is adjustable, and by adjusting the air inlet amount, the top component of the second cavity 12 can be cooled, so that no ventilation dead angle exists in the second cavity 12.
With reference to the foregoing description, optionally, in a possible implementation manner, the air intake of the first side air inlet 611 is adjustable, and/or the air intake of the second side air inlet 612 is adjustable, and/or the air intake of the first dedicated air duct 62 is adjustable.
In a specific implementation, for example, in one possible implementation manner, an air volume adjusting valve is disposed on the first side air inlet 611, the second side air inlet 612, and/or the first dedicated air duct 62, so as to adjust an air intake volume through the air volume adjusting valve.
According to the air-cooled energy storage converter provided by the embodiment, the air inlet quantity of the air inlet at the first side is adjustable, the air inlet quantity of the air inlet at the second side is adjustable, and the air inlet quantity of the first special air channel is adjustable, so that the air quantity of each cavity can be adjusted through adjusting the air inlet quantity, and the air quantity of each cavity is controlled.
In summary, after cold air enters the sealed cabinet, the cold air is discharged out of the cabinet through all heating components, particularly important heating components such as a power module, a reactor and the like, and the air outlets of the first cavity and the second cavity are all converged into the mixed air duct and then are all discharged out of the cabinet through the fan. In addition, the air inlet of the first side air inlet is adjustable, the air inlet of the second side air inlet is adjustable, and the air inlet of the first special air channel is adjustable, so that the adjustable function of the cavity air quantity is increased, the flow direction and the air quantity of the air are controlled, the temperature of each area is obtained through temperature control monitoring, then the air quantity can be distributed through adjusting the air quantity, and the temperature rise of each area is controlled, so that the temperature rise of each area is maintained in a design range, the phenomenon of uneven heat dissipation is avoided, the damage of components is reduced, and the maintenance cost is reduced.
In addition, the fans can be accurately selected, the efficiency of the fans is improved to the greatest extent, redundancy is reduced, cost is reduced, space is saved, the situation that all cooling systems cannot work normally due to faults of one cooling system in the multi-fan system can be avoided, and the fault rate can be reduced.
According to the air-cooled energy storage converter, firstly, through optimizing the structural layout and the air duct structure, the flow direction of air can be controlled, so that smoothness of air flow and high cooling efficiency can be ensured, targeted heat dissipation can be achieved, the air can flow according to a set route under the condition that one fan is arranged in the air-cooled energy storage converter, the purpose of heat dissipation can be achieved, the problems existing when the fan is arranged outside and a plurality of fans are arranged inside can be avoided, secondly, through installing different functional modules at different positions, separating heat dissipation paths of the power modules and the reactor, heat between the different modules can be prevented from interfering with each other, heat cannot be guaranteed to be gathered in a cabinet body, and the whole heat dissipation efficiency can be improved.
In addition, according to the air-cooled energy storage converter provided by the application, the air inlet quantity of the first side air inlet is adjustable, the air inlet quantity of the second side air inlet is adjustable, and the air inlet quantity of the first special air channel is controllable, so that the air quantity can be distributed by adjusting the air inlet quantity to control the temperature rise of each area, so that the temperature rise of each area is maintained in a design range, the phenomenon of uneven heat dissipation is avoided, the heat dissipation balance is realized, the problem of damage to components due to uneven heat dissipation is further avoided, the damage to components is reduced, and the maintenance cost is reduced.
It should be noted that, referring to the foregoing description, each module of the air-cooled energy-storage converter provided by the application is mutually independent, so that independent disassembly and maintenance can be realized, the purpose of adjusting the air inlet quantity of the first side air inlet and/or the air inlet quantity of the second side air inlet can be realized by replacing the mixed air duct, and in addition, the purpose of adjusting the air inlet quantity of the first special air duct can be realized by replacing the first special air duct.
Optionally, referring to fig. 1, the air-cooled energy storage converter further includes a standby power module 8, and the standby power module 8 is installed in the first upper installation room 111.
According to the energy storage converter provided by the embodiment, the standby power supply module is arranged in the first upper mounting chamber, so that the standby power supply module can be used for providing continuous power support for the air-cooled energy storage converter when the main power supply fails or the power supply is unstable, and the reliability and the stability of the system are improved. Furthermore, when the main power supply is maintained and overhauled, the full shutdown is not needed, so that the maintenance time can be shortened, and the usability of the equipment can be improved.
The application also provides a converter unit comprising at least two sets of any air-cooled energy storage converters as provided in the first aspect of the application.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the application.
Claims (10)
1. The air-cooled energy storage converter is characterized by comprising a sealed cabinet body, a reactor, a power module, a fan, a control module and a wind channel component, wherein,
The inner cavity of the sealed cabinet body is divided into a first cavity and a second cavity by a vertical partition board, the first cavity is divided into a first upper installation chamber and a first lower installation chamber by a transverse partition board, the second cavity is divided into a second upper installation chamber and a second lower installation chamber by a transverse partition board, the first upper installation chamber, the first lower installation chamber, the second upper installation chamber and the second lower installation chamber are sealed and isolated, the first lower installation chamber and the second lower installation chamber are provided with external air inlets, and the first upper installation chamber and the second upper installation chamber are provided with external air outlets;
The control module is arranged in the first lower installation chamber, the fan is arranged in the second upper installation chamber, the reactor and the power module are arranged in the second lower installation chamber, and the power module is positioned above the reactor;
The air duct assembly comprises a mixed air duct, a first special air duct and a second special air duct which are respectively communicated with the mixed air duct, wherein the mixed air duct is arranged at the rear of the power module, and an air outlet of the mixed air duct is communicated with an air inlet of the fan;
The reactor is sleeved with a first air guide cover, an air outlet of the first air guide cover is communicated with an air inlet of the first special air duct, so that air is guided into the first special air duct from the lower part of the reactor through the first air guide cover, and is discharged out of the sealed cabinet body after passing through the mixed air duct and the fan;
The second special air duct is communicated with the heat dissipation air duct of the power module, so that air entering the power module enters the mixing air duct after passing through the heat dissipation air duct and the second special air duct, and is discharged out of the sealed cabinet body after passing through the mixing air duct and the fan;
The mixing air duct is provided with a first side air inlet and a second side air inlet, the first side air inlet is communicated with the first lower installation chamber, the second side air inlet is communicated with the second lower installation chamber, so that air entering the first lower installation chamber and the second lower installation chamber enters the mixing air duct through the side air inlet, and is discharged out of the sealed cabinet body after passing through the mixing air duct and the fan.
2. The air-cooled energy storage converter of claim 1, wherein the air intake of the first side air inlet is adjustable;
And/or the number of the groups of groups,
The air inlet amount of the second side air inlet is adjustable;
And/or the number of the groups of groups,
The air inlet quantity of the first special air channel is adjustable.
3. The air-cooled energy storage converter of claim 1 wherein the mixing duct is an L-shaped duct, wherein,
The L-shaped air duct consists of a vertical air duct and a transverse air duct which are mutually communicated, wherein the lower port of the vertical air duct is communicated with the air outlet of the first special air duct, an air inlet is arranged at the position, opposite to the heat dissipation air duct, of the vertical air duct, and the second special air duct is communicated with the air outlet of the heat dissipation air duct and the air inlet;
The horizontal air channel is a groove-like air channel, a horizontal air outlet of the groove-like air channel is communicated with an air inlet of the fan, a first side air inlet is formed in a first side face, facing the first lower mounting chamber, of the groove-like air channel, and a second side air inlet is formed in a second side face, facing the second lower mounting chamber, of the groove-like air channel.
4. The air-cooled energy storage converter of claim 1, wherein the first special air duct is composed of a cover-shaped air duct and a vertical air duct which are communicated with each other, an air inlet of the cover-shaped air duct is in sealing connection with an air outlet of the first air guide cover, and an air outlet of the vertical air duct is communicated with the mixed air duct.
5. An air-cooled energy storage converter according to claim 2, wherein an air quantity adjusting valve is arranged on the first side air inlet, the second side air inlet and/or the first special air duct so as to adjust the air quantity through the air quantity adjusting valve.
6. The air-cooled energy storage converter of claim 1, further comprising a backup power module mounted within the first upper mounting chamber.
7. The air-cooled energy storage converter of claim 1, wherein the front door panels of the first lower mounting chamber and the second upper mounting chamber are each provided with two external air inlets.
8. The air-cooled energy storage converter of claim 7, wherein the front door panel and the back panel of the first upper mounting and the second upper mounting chamber are each provided with an external air outlet.
9. The air-cooled energy storage converter of claim 8, wherein a sealing cover is sleeved on the fan, and one side of the sealing cover facing the front door plate and one side of the sealing cover facing the back plate are of hollow structures.
10. A converter assembly comprising at least two sets of air-cooled energy storage converters according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202411717825.5A CN119233610A (en) | 2024-11-27 | 2024-11-27 | Air-cooled energy storage converter and converter unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202411717825.5A CN119233610A (en) | 2024-11-27 | 2024-11-27 | Air-cooled energy storage converter and converter unit |
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| CN202411717825.5A Pending CN119233610A (en) | 2024-11-27 | 2024-11-27 | Air-cooled energy storage converter and converter unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119730202A (en) * | 2025-02-27 | 2025-03-28 | 浙江晶科储能有限公司 | Energy storage converter |
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| CN110635662A (en) * | 2018-05-31 | 2019-12-31 | 西安中车永电捷通电气有限公司 | Converter cabinet |
| CN210183237U (en) * | 2019-08-16 | 2020-03-24 | 廊坊英博电气有限公司 | Energy storage converter |
| CN212138198U (en) * | 2020-06-02 | 2020-12-11 | 深圳市中科恒源技术有限公司 | Strong-convection unpowered heat removal device for multilayer machine room and data center |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110635662A (en) * | 2018-05-31 | 2019-12-31 | 西安中车永电捷通电气有限公司 | Converter cabinet |
| CN210183237U (en) * | 2019-08-16 | 2020-03-24 | 廊坊英博电气有限公司 | Energy storage converter |
| CN212138198U (en) * | 2020-06-02 | 2020-12-11 | 深圳市中科恒源技术有限公司 | Strong-convection unpowered heat removal device for multilayer machine room and data center |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN119730202A (en) * | 2025-02-27 | 2025-03-28 | 浙江晶科储能有限公司 | Energy storage converter |
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