CN216700565U - Power converter cabinet - Google Patents
Power converter cabinet Download PDFInfo
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- CN216700565U CN216700565U CN202122812754.5U CN202122812754U CN216700565U CN 216700565 U CN216700565 U CN 216700565U CN 202122812754 U CN202122812754 U CN 202122812754U CN 216700565 U CN216700565 U CN 216700565U
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- heat dissipation
- cabinet
- partition plate
- chamber
- panel
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Abstract
The utility model discloses a power converter cabinet, comprising: the cabinet comprises a cabinet body, a heat dissipation air duct arranged at the top of the cabinet body, a first partition plate and a second partition plate, wherein the first partition plate and the second partition plate are arranged in the cabinet body; the first partition plate divides the cabinet into a sealing cavity and a heat dissipation cavity except for the heat dissipation air duct, a first heat dissipation window is arranged on the first partition plate, a heat radiator is embedded in the first heat dissipation window and comprises a heat dissipation base plate and heat dissipation fins arranged on the first surface of the heat dissipation base plate, the heat dissipation base plate is embedded in the first heat dissipation window, and the heat dissipation fins extend into the heat dissipation cavity through the first heat dissipation window. The second partition plate separates the sealed cavity from the heat dissipation air duct; the heat dissipation chamber is formed by surrounding a first partition plate and part of the wall body of the cabinet body, and heat dissipation holes are formed in the cabinet body forming the side wall of the heat dissipation chamber; the parts of the power converter cabinet except the heat dissipation chamber and the heat dissipation air duct form a sealed chamber. The utility model can give consideration to the efficient heat dissipation of the power converter and has better protection performance.
Description
Technical Field
The utility model relates to the technical field of power electronics, in particular to a power converter cabinet.
Background
Power converters typically include components such as power cells, inductors, and transformers. The high-power electronic devices in the power unit need to be radiated by the radiator due to large heat generated during working, and a large amount of external air is needed to flow through the radiator fins at the moment, so that the purpose of rapid radiation is achieved. Generally, the existing power converter cabinet usually adopts an air-cooled heat dissipation mode of air inlet on the side wall or the bottom of the cabinet, the cabinet is not sealed, and the protection grade is low. Moreover, when the cabinet is arranged in an outdoor severe environment such as a ship deck and the like, the cabinet can be subjected to direct water jet to cause circuit failure in the cabinet; the isolation between the air flow and the incident water flow needs to be considered, but the flow and the flow rate of the cooling air flow are influenced, so that the heat dissipation effect is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve at least one technical problem in the background art, the utility model provides a power converter cabinet which can effectively protect a power converter while giving consideration to efficient heat dissipation of the power converter and prevent circuit failure caused by water flow injection in a severe environment.
The technical scheme adopted by the utility model is as follows:
the utility model discloses a power converter cabinet which comprises a cabinet body, a heat dissipation air duct arranged at the top of the cabinet body, a first partition plate and a second partition plate, wherein the first partition plate and the second partition plate are arranged in the cabinet body;
the first partition plate divides the part except the heat dissipation air channel in the power converter cabinet into a sealed cavity and a heat dissipation cavity, a first heat dissipation window is arranged on the first partition plate, a heat radiator is embedded in the first heat dissipation window, the heat radiator comprises a heat dissipation substrate and heat dissipation fins arranged on the first surface of the heat dissipation substrate, the heat dissipation substrate is embedded in the first heat dissipation window, the heat dissipation fins extend into the heat dissipation cavity through the first heat dissipation window, the second partition plate partitions the sealed cavity and the heat dissipation air channel in the power converter cabinet, and the heat dissipation air channel is communicated with the heat dissipation cavity;
the heat dissipation chamber is surrounded by the first partition plate and part of the cabinet body, and heat dissipation holes are formed in the cabinet body forming the side wall of the heat dissipation chamber; the parts of the power converter cabinet except the heat dissipation chamber and the heat dissipation air duct form a sealed chamber.
Optionally, the first separator comprises:
the first panel is positioned at the bottom of the heat dissipation chamber and is parallel to the bottom panel of the cabinet body;
the second panel is perpendicular to the first panel and is parallel to the two side panels of the cabinet body;
and the third panel is vertical to the first panel and is parallel to the front panel of the cabinet body.
Optionally, the first heat dissipation window is disposed on the third panel.
Optionally, the heat dissipation holes are distributed at the middle lower part of the cabinet body which encloses the heat dissipation chamber.
Optionally, a power device module is arranged inside the power converter cabinet; the power device module is arranged on the second surface of the heat dissipation substrate and is positioned in the sealed cavity, and the first surface and the second surface of the heat dissipation substrate are oppositely arranged.
Optionally, a second heat dissipation window is arranged on the second partition, and a heat exchanger is embedded in the second heat dissipation window.
Optionally, a heat dissipation port is disposed on a side panel of the cabinet body forming the heat dissipation air duct.
Optionally, a fan is further disposed in the heat dissipation air duct.
Optionally, a transformer and an inductor are further disposed in the sealed chamber.
Compared with the prior art, the power converter cabinet provided by the utility model at least has the following beneficial effects:
1) the power converter cabinet provided by the utility model has the advantages that the sealing chamber is arranged, the circuit part of the power converter arranged in the sealing chamber can be effectively protected, the problems of circuit failure and the like caused by water flow injected into the sealing chamber can be prevented, the protection performance is better, and the protection grade is higher; and the heat that sets up the power device during operation in sealed cavity and produce can be through the radiator transmission to the heat dissipation cavity in sealed cavity and the heat dissipation cavity of intercommunication to outside the heat dissipation wind channel discharge rack with the heat dissipation cavity intercommunication, possess the efficient heat dissipation function.
2) According to the power converter cabinet, the heat exchanger is arranged in the sealed cavity, so that heat generated by a circuit part with smaller heat productivity in the power converter arranged in the sealed cavity can be transmitted to the heat dissipation air channel, and the heat in the sealed cavity can be further accelerated to be discharged.
3) According to the power converter cabinet, the fan is arranged at the part where the heat dissipation air channel is communicated with the heat dissipation cavity, so that heat in the heat dissipation cavity can be absorbed into the heat dissipation air channel and discharged out of the cabinet in an accelerated manner, and the heat dissipation efficiency of the cabinet is further improved.
Drawings
Fig. 1 is a schematic structural diagram of the power converter cabinet of the present invention after the cabinet door is opened on the front side.
Fig. 2 is a schematic diagram of a back structure of the power converter cabinet of the present invention.
Fig. 3 is a schematic sectional view taken along a-a in fig. 2.
Fig. 4 is a schematic structural diagram of the power converter cabinet of the present invention without a rear panel of the cabinet body.
Fig. 5 is a schematic perspective view of the power converter cabinet of the present invention with the rear panel removed.
List of reference numerals:
1 power converter cabinet
11 sealed chamber
12 Heat dissipation chamber
121 first partition plate
1211 first panel
1212 second panel
1213 third panel
1213-1 first Heat dissipation Window
122-1 rear side wall of heat dissipation chamber
122-2 left side wall of heat dissipation chamber
123 heat dissipation hole
13 radiating air duct
131 second partition
1311 second heat dissipation window
132 heat exchanger
133 heat dissipation opening
14 radiator
141 heat-dissipating substrate
15 power device module
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, the present embodiment provides a power converter cabinet 1 for placing and protecting a power converter therein, and having a heat dissipation function.
As shown in fig. 1-5, the power converter cabinet 1 includes a cabinet body, a heat dissipation air duct 13 disposed at the top of the cabinet body, and a first partition plate 121 and a second partition plate 131 disposed in the cabinet body, where the first partition plate 121 divides the portion of the power converter cabinet 1 except the heat dissipation air duct 13 into a sealed chamber 11 and a heat dissipation chamber 12, and a first heat dissipation window 1213-1 is disposed on the first partition plate 121, a heat sink 14 is embedded in the first heat dissipation window 1213-1, the heat sink 14 includes a heat dissipation substrate 141 and a heat dissipation fin (not shown in the figure) disposed on a first surface of the heat dissipation substrate 141, the heat dissipation substrate 141 is embedded in the first heat dissipation window 1213-1, and the heat dissipation fin extends into the heat dissipation chamber 12 through the first heat dissipation window 1213-1; the second partition plate 131 partitions the sealing chamber 11 and the heat dissipation air duct 13 in the power inverter cabinet 1, and the heat dissipation air duct 13 is communicated with the heat dissipation chamber 12; wherein:
the heat dissipation chamber 12 is surrounded by the first partition 121 and a portion of the cabinet, and a heat dissipation hole 123 is disposed on the cabinet forming the side wall of the heat dissipation chamber 12.
Specifically, the cabinet refers to a housing of the power converter cabinet 1, and includes a front panel, a rear panel, a left side panel, a right side panel, a top panel, and a bottom panel.
Specifically, referring to fig. 3 to 5, the heat dissipation chamber 12 is a rectangular parallelepiped, and is a space surrounded by the first partition plate 121 and a part of the cabinet body; the first partition 121 includes a first panel 1211, a second panel 1212, and a third panel 1213; a first panel 1211 positioned at the bottom of the heat dissipation chamber 12 and parallel to the bottom panel of the cabinet, the first panel 1211 forming the bottom of the heat dissipation chamber 12; the second panel 1212 is perpendicular to the first panel 1211 and parallel to the left side panel of the cabinet forming the side wall of the heat dissipation chamber 12, and the second panel 1212 and the left side panel of the cabinet parallel thereto are formed as the left and right sides of the heat dissipation chamber 12; the third panel 1213 is perpendicular to the first panel 1211 and parallel to the front panel of the cabinet, the third panel 1213 being at a distance from the front panel of the cabinet; the third panel 1213 and the cabinet rear panel parallel thereto form the front and rear of the heat dissipation chamber 12; thus, the three panels, the rear panel and the left side panel of the cabinet form a rectangular heat dissipation chamber 12.
In an alternative embodiment, the first partition 121 further comprises a fourth panel (not shown in the figures), which is parallel to and spaced apart from the rear panel of the cabinet, and cooperates with the first panel 1211, the second panel 1212, the third panel 1213 and the left side panel of the cabinet to form the heat dissipation chamber 12, and in this case, the fourth panel forms the rear of the heat dissipation chamber 12.
Referring to fig. 2, a heat dissipating hole 123 is formed on the cabinet forming the side wall of the heat dissipating chamber 12. The heat dissipation holes 123 are specifically disposed on the rear sidewall 122-1 of the heat dissipation chamber and the left sidewall 122-2 of the heat dissipation chamber, so that a large amount of cooling air can enter the heat dissipation chamber 12 through the heat dissipation holes 123 to accelerate the heat dissipation in the heat dissipation chamber 12. Optionally, the heat dissipation holes 123 are distributed on the middle-lower portion of the rear sidewall 122-1 of the heat dissipation chamber and the left sidewall 122-2 of the heat dissipation chamber, so that cooling air can enter from the middle-lower portion of the heat dissipation chamber 11, so that cooling air can take away heat of all heat dissipation fins, and incomplete heat dissipation caused by layering of cold and hot air flows is avoided.
Referring to fig. 1 or 3, the second partition 131 is engaged with the top panel of the cabinet to form the heat dissipation duct 13 at the top of the cabinet. The heat dissipation chamber 12 is communicated with a heat dissipation air duct 13. Optionally, a heat dissipating port 133 is further disposed on a side wall of the heat dissipating air duct 13, and the heat dissipating port 133 is communicated with the outside for dissipating heat of the heat dissipating air duct 13. Because the heat dissipation air duct 13 is located at the upper portion of the heat dissipation chamber 12, and the heat dissipation chamber 12 is communicated with the heat dissipation air duct 13, the heat in the heat dissipation chamber 12 can flow into the heat dissipation air duct 13 at the upper portion under the condition of inputting a large amount of cold air, and is discharged through the heat dissipation port 133 on the heat dissipation air duct 13. Optionally, a fan (not shown in the figure) is further disposed in a portion of the heat dissipation air duct 13 communicating with the heat dissipation chamber 12, and the fan is configured to accelerate absorption of heat in the heat dissipation chamber 12, further accelerate air circulation in the heat dissipation chamber 12, and effectively improve heat dissipation of the power converter cabinet.
The parts of the power inverter cabinet 1 except the heat dissipation chamber 12 and the heat dissipation air duct 13 form a sealed chamber 11.
Specifically, referring to fig. 1 or 3, the second partition 131 partitions a sealed space from the portions other than the heat dissipation air duct 12 and the heat dissipation chamber 12, and forms the sealed chamber 11. Moreover, the first partition board 121 and the second partition board 131 separate the sealed chamber 11 from the heat dissipation chamber 12 and the heat dissipation air duct 12, so that when the cabinet is in a severe environment, the problem of a circuit caused by the inflow of water through the heat dissipation hole 123 or the heat dissipation port 133 into the sealed chamber can be avoided, and the protection performance is good (the protection level of the cabinet in this embodiment can reach IP 56).
Referring to fig. 1 and 3, a power converter is disposed in the power converter cabinet 1, and the power converter includes a power unit including a power device module 15 and a heat sink 14. The power device module 15 is disposed inside the sealed chamber 11 to achieve isolation thereof from the outside. The heat sink 14 includes a heat dissipating substrate 141 and heat dissipating fins (not shown), wherein the heat dissipating substrate 141 has a first surface and a second surface opposite to each other. The power device module 15 is attached to the second surface of the heat dissipation substrate 141, and the heat dissipation fins are disposed on the first surface of the heat dissipation substrate 141; the heat dissipation substrate 141 and the heat dissipation fins are integrally formed, or the heat dissipation substrate 141 is provided with grooves in which the heat dissipation fins are inserted. Further, the heat dissipation substrate 141 and/or the heat dissipation fins have a closed heat dissipation pipeline therein, and the heat dissipation pipeline is filled with a heat conducting medium. The heat dissipating substrate 141 is embedded in the first heat dissipating window 1213-1 of the third panel 1213 of the first partition 121, and the heat dissipating fins on the first surface of the heat dissipating substrate 141 extend into the heat dissipating chamber 12 through the first heat dissipating window 1213-1. Therefore, the heat of the power device module 15 disposed on the second surface of the heat dissipation substrate 141 and located in the sealed chamber 11 can be transmitted to the heat dissipation fins by means of the heat dissipation substrate 141, and since the heat dissipation fins are located in the heat dissipation chamber 12, the heat transmitted to the heat dissipation fins can be carried to the heat dissipation air duct 13 via the cold air flowing into the heat dissipation chamber 12 and then discharged out of the cabinet, so that the rapid heat dissipation of the power device module 15 can be realized. Optionally, the power converter further includes electronic components such as an inductor and a transformer, which are also disposed in the sealed chamber 11, so as to prevent the failure of the circuit in the cabinet caused by the direct injection of water when the cabinet is in a harsh environment.
The heat that electronic components such as inductor and transformer produced when working is less, can dispel the heat naturally through the rack cabinet body. Further, referring to fig. 3, a second heat dissipation window 1311 is disposed on the second partition 131, a heat exchanger 132 is embedded in the second heat dissipation window 1311, the heat exchanger 132 extends into the heat dissipation air duct 13 through the second heat dissipation window 1311, and heat in the sealed chamber 11 is transmitted to the heat dissipation air duct 13 through the heat exchanger 132. The heat exchanger 132 can transfer heat generated when other electronic components such as inductors and transformers in the sealed chamber 11 work into the heat dissipation air duct 13, and the heat is discharged out of the cabinet through the heat dissipation air duct 13. Alternatively, heat exchanger 132 includes, but is not limited to, a semiconductor refrigeration heat exchanger, a compressor refrigerator, and the like.
In conclusion, the sealing cavity of the power converter cabinet is isolated from the heat dissipation cavity and the heat dissipation air duct by the first partition plate and the second partition plate, so that the problems of circuit failure and the like caused by water flow injection can be effectively avoided, the protection performance is better, and the protection grade is higher; moreover, the sealed cavity can be respectively communicated with the heat dissipation cavity and the heat dissipation air channel through the radiator embedded on the first partition plate and the heat exchanger embedded on the second partition plate, so that heat generated by the power device module, the inductor and the transformer in the sealed cavity during working is discharged to the heat dissipation air channel and is discharged out of the cabinet through the heat dissipation air channel, and therefore the cabinet of the power converter has good protection performance and also has a high-efficiency heat dissipation function.
The specific embodiments are only for explaining the utility model, not for limiting the utility model, and the skilled in the art can modify the embodiments as required after reading the description, but only by the protection of the patent law within the scope of the claims of the present invention.
Claims (9)
1. A power converter cabinet, comprising:
the heat dissipation air duct comprises a cabinet body, a heat dissipation air duct arranged at the top of the cabinet body, a first partition plate and a second partition plate, wherein the first partition plate and the second partition plate are arranged in the cabinet body;
the first partition plate divides the part except the heat dissipation air channel in the power converter cabinet into a sealing cavity and a heat dissipation cavity, a first heat dissipation window is arranged on the first partition plate, a heat radiator is embedded in the first heat dissipation window, the heat radiator comprises a heat dissipation substrate and heat dissipation fins arranged on the first surface of the heat dissipation substrate, the heat dissipation substrate is embedded in the first heat dissipation window, and the heat dissipation fins extend into the heat dissipation cavity through the first heat dissipation window; the second partition plate separates the sealing cavity in the power converter cabinet from the heat dissipation air duct, and the heat dissipation air duct is communicated with the heat dissipation cavity;
the heat dissipation chamber is surrounded by the first partition plate and part of the cabinet body, and heat dissipation holes are formed in the cabinet body forming the side wall of the heat dissipation chamber; the parts of the power converter cabinet except the heat dissipation chamber and the heat dissipation air duct form the sealed chamber.
2. The power inverter cabinet of claim 1, wherein the first partition comprises:
the first panel is positioned at the bottom of the heat dissipation chamber and is parallel to the bottom panel of the cabinet body;
the second panel is perpendicular to the first panel and is parallel to the two side panels of the cabinet body;
and the third panel is vertical to the first panel and is parallel to the front panel of the cabinet body.
3. The power inverter cabinet of claim 2, wherein the first heat dissipation window is disposed on the third panel.
4. The power inverter cabinet of claim 1, wherein the heat dissipation apertures are distributed at a lower-middle portion of a cabinet enclosing the heat dissipation chamber.
5. The power converter cabinet of any one of claims 1-4, wherein a power device module is disposed inside the power converter cabinet; the power device module is arranged on the second surface of the heat dissipation substrate and is positioned in the sealed cavity, and the first surface and the second surface of the heat dissipation substrate are oppositely arranged.
6. The power inverter cabinet of claim 1, wherein the second partition has a second heat dissipation window, and a heat exchanger is embedded in the second heat dissipation window.
7. The power inverter cabinet of claim 1, wherein a heat sink is disposed on the cabinet side panel forming the heat dissipation duct.
8. The power inverter cabinet of claim 1, wherein a fan is further disposed within the cooling air duct.
9. The power inverter cabinet of claim 1, wherein a transformer and an inductor are further disposed within the sealed chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122812754.5U CN216700565U (en) | 2021-11-16 | 2021-11-16 | Power converter cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122812754.5U CN216700565U (en) | 2021-11-16 | 2021-11-16 | Power converter cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216700565U true CN216700565U (en) | 2022-06-07 |
Family
ID=81834141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122812754.5U Active CN216700565U (en) | 2021-11-16 | 2021-11-16 | Power converter cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216700565U (en) |
-
2021
- 2021-11-16 CN CN202122812754.5U patent/CN216700565U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 3136, Building C, No. 555, Dongchuan Road, Minhang District, Shanghai, 200241 Patentee after: Shanghai Kunwu Fengdian Technology Co.,Ltd. Address before: 314117 Room 203, No. 1, Jinxiu Avenue, Yaozhuang Town, Jiashan County, Jiaxing City, Zhejiang Province Patentee before: ZHEJIANG KUNWU TECHNOLOGY Co.,Ltd. |