CN211981727U - Power unit - Google Patents
Power unit Download PDFInfo
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- CN211981727U CN211981727U CN202020770312.1U CN202020770312U CN211981727U CN 211981727 U CN211981727 U CN 211981727U CN 202020770312 U CN202020770312 U CN 202020770312U CN 211981727 U CN211981727 U CN 211981727U
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- heat dissipation
- heat
- heat source
- power unit
- piece
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 75
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 13
- 230000008878 coupling Effects 0.000 abstract description 10
- 238000010168 coupling process Methods 0.000 abstract description 10
- 238000005859 coupling reaction Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 3
- 238000010862 gear shaping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a power unit, which comprises a heat dissipation component, a heat source and a shell, wherein the heat dissipation component and the heat source are arranged in the shell, the heat dissipation component comprises a first heat dissipation piece and a second heat dissipation piece, the first heat dissipation piece and the second heat dissipation piece are arranged in a layered manner, and a gap is arranged between the first heat dissipation piece and the second heat dissipation piece; the heat source includes a first heat source and a second heat source, and the first heat source and the second heat source are fixed to the first heat dissipation member and the second heat dissipation member, respectively. The utility model discloses separately independently place first radiating piece and second radiating piece, can effectively avoid the thermal coupling between first heat source and the second heat source to on same radiating piece, distance between the heat source can increase, has avoided mutual thermal coupling, has alleviateed the radiating pressure of single radiating piece, has effectively reduced the temperature rise of heat source. The utility model provides a under forced air cooling's radiating mode, fundamentally solves in the design of traditional power unit because the mutual thermal coupling of power device, the huge pressure that brings for the radiating piece.
Description
Technical Field
The utility model belongs to the power control equipment field, concretely relates to power unit.
Background
With the increasing demand of the application field of the medium voltage frequency converter for the load capacity, the capacity of a product designed by a manufacturer of the medium voltage frequency converter is increased continuously, the power unit is used as a main component for forming the medium voltage frequency converter, and the thermal design of the power unit becomes the design key of the high-capacity medium voltage frequency converter. The power unit has a prominent heat dissipation problem of diodes and IGBTs, and is a focus of research on high-capacity medium-voltage frequency converters.
At present, two ways exist for heat dissipation of a power unit, one is a forced air cooling way, and the other is a water cooling way. Although the heat dissipation efficiency of water-cooling heat dissipation is high, the water-cooling heat dissipation is not a good solution due to the problems of high cost, large volume, many additional components, complex maintenance, high requirements on field use conditions and the like. Compared with a water-cooling heat dissipation mode, the forced air cooling mode has obvious advantages from cost, volume, use conditions and later maintenance. How to take away more heat of the large-capacity power device by using a forced air cooling mode becomes a focus of research and design of the large-capacity medium-voltage frequency converter.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a forced air cooling radiating power unit that cost is lower, the structure is simpler, maintain simpler, the volume is littleer.
In order to solve the technical problem, the utility model provides a technical scheme does:
a power unit comprises a heat dissipation component, a heat source and a shell, wherein the heat dissipation component and the heat source are installed in the shell, the heat dissipation component comprises a first heat dissipation piece and a second heat dissipation piece, the first heat dissipation piece and the second heat dissipation piece are arranged in a layered mode, and a gap is formed between the first heat dissipation piece and the second heat dissipation piece; the heat source comprises a first heat source and a second heat source, and the first heat source and the second heat source are fixed on the first heat dissipation piece and the second heat dissipation piece respectively.
Furthermore, a first air inlet and a first air outlet which are arranged oppositely and a second air inlet and a second air outlet which are arranged oppositely are arranged on the shell.
Furthermore, the heat dissipation assembly further comprises a first support and a second support, the first support extends from the first air inlet to the first air outlet to form a first air duct, and the first heat dissipation member is fixedly installed in the first air duct; the second support extends to the second air outlet from the second air inlet to form a second air channel, and the second heat dissipation piece is fixedly installed in the second air channel.
Further, a plurality of the first heat sources or a plurality of the second heat sources are arranged in parallel.
Further, a plurality of the first heat sources are horizontally or vertically placed on the first heat dissipation member.
Further, a plurality of the second heat sources are horizontally or vertically placed on the second heat dissipation member.
Further, the first heat dissipation member and the second heat dissipation member may be one or more of a gear shaping method, a tooth relief method, an extrusion method, or a heat pipe method.
Further, the first heat source and the second heat source are semiconductor devices.
The utility model has the advantages that:
the utility model discloses separately independently place first radiating piece and second radiating piece, can effectively avoid the thermal coupling between first heat source and the second heat source to on same radiating piece, distance between the heat source can increase, has avoided mutual thermal coupling, has alleviateed the radiating pressure of single radiating piece, has effectively reduced the temperature rise of heat source. The utility model provides a under forced air cooling's radiating mode, fundamentally solves in the design of traditional power unit because the mutual thermal coupling of power device, the huge pressure that brings for the radiating piece for device lectotype allowance is forced to enlarge, and the radiating rate is low, bulky, with high costs scheduling problem.
Drawings
Fig. 1 is a front view of a power cell of the present invention in a preferred embodiment;
fig. 2 is a left side view of the power unit of the present invention in a preferred embodiment;
fig. 3 is a view of the power unit of the present invention, which is observed from an angle obliquely downward from the upper left of the front view shown in fig. 1.
The reference numerals include:
100-radiator block 110-first radiator element 120-second radiator element
130-first support 140-second support 200-heat source
210-first heat source 220-second heat source 300-housing
310-first air inlet 320-first air outlet 330-second air inlet
340-second outlet
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 3, in order to illustrate a preferred embodiment of the present invention, the power unit includes a heat dissipation assembly 100, a heat source 200 and a housing 300, the heat dissipation assembly 100 and the heat source 200 are installed in the housing 300, the heat dissipation assembly 100 includes a first heat dissipation member 110 and a second heat dissipation member 120, the first heat dissipation member 110 and the second heat dissipation member 120 are arranged in layers, and a gap is formed between the first heat dissipation member 110 and the second heat dissipation member 120; the heat source 200 includes a first heat source 210 and a second heat source 220, and the first heat source 210 and the second heat source 220 are fixed to the first heat dissipation member 110 and the second heat dissipation member 120, respectively.
The utility model discloses separately independently place first radiating piece 110 and second radiating piece 120, can effectively avoid the thermal coupling between first heat source 210 and the second heat source 220 to on same radiating piece, distance between the heat source can increase, has avoided mutual thermal coupling, has alleviateed the radiating pressure of single radiating piece, has effectively reduced the temperature rise of heat source. The utility model provides a under forced air cooling's radiating mode, fundamentally solves in the design of traditional power unit because the mutual thermal coupling of power device, the huge pressure that brings for the radiating piece for device lectotype allowance is forced to enlarge, and the radiating rate is low, bulky, with high costs scheduling problem. The above components are described in further detail below.
The case 300 has a substantially square box shape as a whole, and the heat sink assembly 100 and the heat source 200 are installed in a space inside the case 300. The housing 300 is provided with a first air inlet 310, a first air outlet 320, a second air inlet 330 and a second air outlet 340. The first air inlet 310 and the first air outlet 320 are disposed opposite to each other, and the second air inlet 330 and the second air outlet 340 are disposed opposite to each other.
The heat dissipation assembly 100 includes a first heat dissipation member 110, a second heat dissipation member 120, a first bracket 130, and a second bracket 140. The present application does not limit the specific forms of the first and second heat dissipation members 110 and 120, and the first and second heat dissipation members 110 and 120 may be one or more of a gear shaping method, a relieved tooth method, an extruded method, or a heat pipe method.
The first bracket 130 is plate-shaped and fixedly coupled to the housing 300, and the first heat sink 110 is fixedly mounted on the first bracket 130. Specifically, the number of the first brackets 130 is two, and the first brackets are respectively disposed at both sides of the first heat dissipation member 110. The first bracket 130 extends from the first air inlet 310 to the first air outlet 320 to form a first air duct, and the first heat dissipation member 110 is fixedly installed in the first air duct to rapidly remove heat from the first heat dissipation member 110.
Similarly to the first bracket 130, the second bracket 140 has a plate shape and is fixedly coupled to the case 300, and the second heat sink 120 is fixedly mounted on the second bracket 140. Specifically, the number of the second brackets 140 is two, and the second brackets are respectively disposed at both sides of the second heat sink 120. The second bracket 140 extends from the second air inlet 330 to the second air outlet 340 to form a second air duct, and the second heat dissipation member 120 is fixedly installed in the second air duct to rapidly take away heat on the second heat dissipation member 120.
Preferably, the front surface of the first heat dissipating member 110 is closely attached to the front panel of the first heat source 210, and then, in cooperation with the first bracket 130, an independent first air duct may be formed. The front surface of the second heat dissipating member 120 is closely attached to the front surface plate of the second heat source 220, and then is matched with the second bracket 140, so that an independent second air duct can be formed. First wind channel and second wind channel divide two-layer setting from top to bottom, and mutual independence helps quick heat dissipation.
The first and second heat sources 210 and 220 are semiconductor devices. In this embodiment, the power unit is a medium voltage inverter, the first heat source 210 is an IGBT, and the second heat source 220 is a diode; or the first heat source 210 is an IGBT and the second heat source 220 is a diode. The number of the first heat source 210 and the second heat source 220 may be plural. Preferably, a plurality of the first heat sources 210 or a plurality of the second heat sources 220 are disposed in parallel. A plurality of the first heat sources 210 are horizontally or vertically placed on the first heat dissipation member 110. A plurality of the second heat sources 220 are horizontally or vertically disposed on the second heat dissipation member 120.
The utility model provides a under forced air cooling's radiating mode, fundamentally solves in the design of traditional power unit because the mutual thermal coupling of power device, the huge pressure that brings for the radiating piece for device lectotype allowance is forced to enlarge, and the radiating rate is low, bulky, with high costs scheduling problem. The power unit for forced air cooling heat dissipation is lower in cost, simpler in structure, simpler in maintenance and smaller in size.
The above description is only a preferred embodiment of the present invention, and many changes can be made in the detailed description and the application scope according to the idea of the present invention for those skilled in the art, which all belong to the protection scope of the present invention as long as the changes do not depart from the concept of the present invention.
Claims (8)
1. A power unit comprises a heat dissipation assembly (100), a heat source (200) and a shell (300), wherein the heat dissipation assembly (100) and the heat source (200) are installed in the shell (300), and the power unit is characterized in that the heat dissipation assembly (100) comprises a first heat dissipation member (110) and a second heat dissipation member (120), the first heat dissipation member (110) and the second heat dissipation member (120) are arranged in a layered mode, and a gap is formed between the first heat dissipation member (110) and the second heat dissipation member (120); the heat source (200) includes a first heat source (210) and a second heat source (220), and the first heat source (210) and the second heat source (220) are fixed to the first heat dissipation member (110) and the second heat dissipation member (120), respectively.
2. The power unit as claimed in claim 1, wherein the housing (300) defines a first air inlet (310) and a first air outlet (320) disposed opposite to each other, and a second air inlet (330) and a second air outlet (340) disposed opposite to each other.
3. The power unit according to claim 2, wherein the heat sink assembly (100) further comprises a first bracket (130) and a second bracket (140), the first bracket (130) extends from the first air inlet (310) to the first air outlet (320) to form a first air channel, and the first heat sink (110) is fixedly installed in the first air channel; the second bracket (140) extends from the second air inlet (330) to the second air outlet (340) to form a second air duct, and the second heat dissipation member (120) is fixedly installed in the second air duct.
4. The power unit according to claim 1, characterized in that a plurality of the first heat sources (210) or a plurality of the second heat sources (220) are arranged in parallel.
5. The power unit according to claim 1, wherein a plurality of the first heat sources (210) are horizontally or vertically placed on the first heat dissipation member (110).
6. The power unit according to claim 1, wherein a plurality of the second heat sources (220) are horizontally placed or vertically placed on the second heat dissipation member (120).
7. The power unit of claim 1, wherein the first and second heat dissipation elements (110, 120) are one or more of a toothed, a relieved, an extruded, or a heat pipe.
8. The power unit of claim 1, wherein the first and second heat sources (210, 220) are semiconductor devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020770312.1U CN211981727U (en) | 2020-05-11 | 2020-05-11 | Power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020770312.1U CN211981727U (en) | 2020-05-11 | 2020-05-11 | Power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211981727U true CN211981727U (en) | 2020-11-20 |
Family
ID=73370556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020770312.1U Active CN211981727U (en) | 2020-05-11 | 2020-05-11 | Power unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211981727U (en) |
-
2020
- 2020-05-11 CN CN202020770312.1U patent/CN211981727U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220211 Address after: 710000 room 804, 8th floor, building 14, West Yungu phase I, Fengxi new town, Xixian new area, Xi'an, Shaanxi Patentee after: Weidi new energy Co.,Ltd. Address before: 518055 1-4, 6-10 floor, B2 building, Nanshan Zhiyuan, 1001 Nanshan District Xue Yuan Avenue, Shenzhen, Guangdong. Patentee before: VERTIV TECH Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240125 Address after: 518055 B2, Nanshan Zhiyuan, 1001 Nanshan District Xue Yuan Avenue, Shenzhen, Guangdong. Patentee after: VERTIV TECH Co.,Ltd. Country or region after: China Address before: 710000 room 804, 8th floor, building 14, West Yungu phase I, Fengxi new town, Xixian new area, Xi'an, Shaanxi Patentee before: Weidi new energy Co.,Ltd. Country or region before: China |