Heat exchange device and electric energy conversion device
By designing a heat exchange device including a cover, a liquid-cooled heat exchanger and a condensation mechanism, the problem of the risk of coolant leakage and condensation when the electric energy conversion device is used to dissipate liquid-cooled heat, and effective protection of electronic devices and improved heat dissipation efficiency.
Patent Information
- Application Number
- CN202420754328.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-04-11
AI Technical Summary
When existing electrical energy conversion devices use liquid cooling to dissipate heat, they are prone to failure due to coolant leakage and sputtering. Due to the presence of temperature difference, the risk of condensation increases and easily cause damage.
A heat exchange device is designed, including a cover, a liquid-cooled heat exchanger and a condensation mechanism. The cover is completely covered by the liquid-cooled heat exchanger to prevent the coolant from sputtering; the condensation mechanism uses the temperature difference to prevent the condensation from being formed inside the cover by installing a condensation member on the side of the liquid-cooled heat exchanger near the air outlet, and collects the dripping condensation through the condensation collector.
It effectively prevents coolant leakage and sputtering, reduces the risk of failure of electronic devices, and prevents condensation from being blown onto electronic devices, improving the reliability and heat dissipation efficiency of the electric energy conversion device.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat exchangers, in particular to a heat exchange device and an electric energy conversion device. Background Art
[0002] As the power demand of existing electric energy conversion devices increases, higher and higher requirements are placed on the heat dissipation of electric energy conversion devices. Traditional air cooling can no longer meet the growing energy density demand. Liquid cooling, as a heat dissipation method with higher heat dissipation efficiency than air cooling, is gradually being applied to electric energy conversion devices. However, as a highly integrated device of electronic devices, electric energy conversion devices have many internal components and require a certain amount of safety space. This feature makes it basically impossible for internal heat-generating devices to fit into liquid cooling plates. Therefore, the heat dissipation of internal devices still mostly uses internal fan turbulence and radiates heat through the side walls. The heat dissipation efficiency is low, and the electric energy conversion device cannot achieve full liquid cooling.
[0003] Based on this heat dissipation pain point, some power devices introduce water channels into the internal cavity of the power conversion device. However, as the internal cavity is highly integrated with electronic devices, if it fails, it will cause coolant leakage and sputtering, which will cause the power conversion device to fail. In addition, after the liquid-cooled heat exchanger is introduced into the power conversion device, the risk of condensation increases due to the temperature difference, which can easily cause damage to the power conversion device.
[0004] Therefore, a heat exchange device and an electric energy conversion device are urgently needed to solve the above problems. Utility Model Content
[0005] The utility model aims to provide a heat exchange device and an electric energy conversion device, which can prevent leakage and splashing of coolant, and can prevent condensation from occurring in the heat exchange device, thereby preventing the condensation from being blown onto the electronic components of the electric energy conversion device.
[0006] To achieve this purpose, the utility model adopts the following technical solutions:
[0007] The heat exchange device comprises:
[0008] A cover body, wherein an air duct is formed inside the cover body, an air inlet is arranged at one end of the air duct, and an air outlet is arranged at the other end of the air duct;
[0009] A liquid-cooled heat exchanger is disposed in the air duct, and is used to perform heat exchange and cooling on the airflow in the air duct;
[0010] The condensation mechanism includes a condensation piece and a condensation collector, wherein the condensation piece is arranged on a side of the liquid-cooled heat exchanger close to the air outlet and passes through the cover body, one end of the condensation piece is located in the air duct, and the other end of the condensation piece extends to the outside of the cover body, and the thermal conductivity of the condensation piece is greater than that of the cover body; the condensation collector is arranged on the lower side of the condensation piece and is used for collecting condensation dripping from the condensation piece.
[0011] As an optional solution, the condensation element includes:
[0012] A connecting plate, the connecting plate passing through the cover body;
[0013] An inner plate connected to one end of the connecting plate extending into the air duct;
[0014] The condensation plate is connected to one end of the connection plate extending out of the cover, and the condensation plate extends toward the condensation collector.
[0015] As an optional solution, at least two inner plates are provided, and at least two inner plates are arranged at intervals.
[0016] As an optional solution, the inner plate extends along the axial direction of the air duct.
[0017] As an optional solution, the condensation collector includes a collecting plate, the collecting plate is provided with a groove, and the condensation on the condensation member drips into the groove.
[0018] As an optional solution, a water absorbent is provided in the groove, and the water absorbent can absorb the dripping condensation.
[0019] As an optional solution, the water absorbing member is made of water absorbing foam.
[0020] As an optional solution, the collecting plate is arranged on the lower side of the cover body and forms the air duct with the cover body, both ends of the collecting plate extend out of the cover body, and the groove is provided on the part of the collecting plate extending out of the cover body.
[0021] As an optional solution, the grooves at both ends of the collecting plate are connected.
[0022] As an optional solution, the cover body includes an air inlet hood and an air outlet hood, the air inlet hood is detachably connected to the air outlet hood, the liquid-cooled heat exchanger is arranged in the air inlet hood, and the condensation mechanism is arranged in the air outlet hood.
[0023] As an optional solution, the heat exchange device further includes:
[0024] A fan is arranged on a side of the liquid-cooled heat exchanger close to the air inlet or on a side of the liquid-cooled heat exchanger close to the air outlet, and is used to make the air flow flow from the air inlet to the air outlet.
[0025] The electric energy conversion device comprises a housing and an electronic device arranged in the housing, and also comprises the heat exchange device as described above, wherein the heat exchange device is arranged in the housing, and the air outlet is arranged toward the electronic device.
[0026] Beneficial effects:
[0027] The heat exchange device proposed in the utility model completely covers the liquid-cooled heat exchanger by setting a cover. When the liquid-cooled heat exchanger splashes the coolant, the cover blocks the coolant to prevent the coolant from splashing onto the electronic device, thus forming a good protection for the electronic device and reducing the risk of failure of the electronic device. By setting a condensation piece on the side of the liquid-cooled heat exchanger close to the air outlet, the condensation piece passes through the cover, so that a part of the condensation piece is located in the air duct of the cover, and the other part extends out of the cover. After the air flow is cooled by the liquid-cooled heat exchanger, it reaches the condensation piece. Therefore, the temperature inside the cover at the condensation piece is lower than the temperature outside the cover, and the temperature of the condensation piece inside the cover is lower than the temperature outside the cover. Due to the temperature difference, condensation is formed on the part of the condensation piece outside the cover, avoiding the formation of condensation inside the cover, thereby preventing the condensation from being blown onto the electronic device of the electric energy conversion device. After the condensation drips, it is collected by the condensation collector and will not flow at will, thus avoiding affecting the electronic devices in the box. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a structural schematic diagram of the electric energy conversion device provided by an embodiment of the utility model;
[0029] Figure 2 The structure of the heat exchange device provided by the embodiment of the utility model is schematically shown in FIG. Figure 1 ;
[0030] Figure 3 The structure of the heat exchange device provided by the embodiment of the utility model is schematically shown in FIG. Figure 2 ;
[0031] Figure 4 The cross-sectional structure diagram of the heat exchange device provided by the embodiment of the utility model is Figure 1 ;
[0032] Figure 5 The cross-sectional structure diagram of the heat exchange device provided by the embodiment of the utility model is Figure 2 .
[0033] In the figure:
[0034] 100. heat exchange device; 200. box; 300. electronic device;
[0035] 1. hood body; 101. air duct; 102. air inlet; 103. air outlet; 11. air inlet hood; 12. air outlet hood;
[0036] 2. Liquid-cooled heat exchanger; 21. Heat exchange fins; 22. Connecting part; 221. Support plate; 222. Liquid inlet pipe; 223. Liquid outlet pipe;
[0037] 3. condensation mechanism; 31. condensation member; 311. connection plate; 312. inner plate; 313. condensation plate; 32. condensation collector; 321. collection plate; 3211. groove; 322. water absorbing member;
[0038] 4. Fan. DETAILED DESCRIPTION
[0039] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.
[0040] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0041] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0042] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0043] like Figure 1 As shown, this embodiment provides a heat exchange device 100 and an electric energy conversion device using the heat exchange device 100. The electric energy conversion device also includes a box 200 and an electronic device 300, and the electronic device 300 and the heat exchange device 100 are arranged in the box 200. The heat exchange device 100 is used to dissipate heat and cool the electronic device 300.
[0044] Specifically, Figure 2-Figure 4 As shown, the heat exchange device 100 includes a cover body 1 and a liquid-cooled heat exchanger 2. An air duct 101 is formed inside the cover body 1. An air inlet 102 is provided at one end of the air duct 101, and an air outlet 103 is provided at the other end of the air duct 101. The air outlet 103 is arranged toward the electronic device 300. The liquid-cooled heat exchanger 2 is arranged in the air duct 101, and the liquid-cooled heat exchanger 2 is used to perform heat exchange and cooling on the airflow in the air duct 101. The cover body 1 is provided to completely cover the liquid-cooled heat exchanger 2. When the liquid-cooled heat exchanger 2 splashes the coolant, the cover body 1 blocks the coolant to prevent the coolant from splashing onto the electrical components, thereby forming good protection for the electrical components and reducing the failure risk of the electrical components.
[0045] In order to prevent condensation from occurring in the cover body 1, Figure 3As shown, the heat exchange device 100 also includes a condensation mechanism 3, which includes a condensation piece 31 and a condensation collector 32. The condensation piece 31 is arranged on one side of the liquid-cooled heat exchanger 2 close to the air outlet 103 and passes through the cover body 1. One end of the condensation piece 31 is located in the air duct 101, and the other end of the condensation piece 31 extends to the outside of the cover body 1. The thermal conductivity of the condensation piece 31 is greater than that of the cover body 1; the condensation collector 32 is arranged on the lower side of the condensation piece 31, and is used to collect condensation dripping from the condensation piece 31. By setting a condensation piece 31 on one side of the liquid-cooled heat exchanger 2 close to the air outlet 103, the condensation piece 31 passes through the cover body 1, so that a part of the condensation piece 31 is located inside the cover body 1, and the other part extends outside the cover body 1. After the airflow is cooled by the liquid-cooled heat exchanger 2, it reaches the condensation piece 31. Therefore, the temperature inside the cover body 1 at the condensation piece 31 is lower than the temperature outside the cover body 1, and the temperature of the condensation piece 31 inside the cover body 1 is lower than the temperature outside the cover body 1. Due to the temperature difference, condensation is formed on the part of the condensation piece 31 outside the cover body 1, and condensation is avoided from forming inside the cover body 1, so that the condensation can be prevented from being blown onto the electronic device 300 of the electric energy conversion device. After the condensation drips, it is collected by the condensation collector 32 and will not flow randomly, so as to avoid affecting the electronic device 300 in the box 200.
[0046] Alternatively, if Figure 3 As shown, the condensation member 31 includes a connecting plate 311, an inner plate 312 and a condensation plate 313. The connecting plate 311 passes through the housing 1, the inner plate 312 is connected to one end of the connecting plate 311 extending into the air duct 101, and the condensation plate 313 is connected to one end of the connecting plate 311 extending out of the housing 1, and the condensation plate 313 extends toward the condensation collector 32. By extending the inner plate 312 into the air duct 101, the internal temperature of the housing 1 can be better sensed and conducted. The condensation plate 313 is arranged outside the housing 1 to sense the external temperature of the housing 1. By setting the condensation plate 313 to extend downward, the condensation formed on the condensation plate 313 can be quickly dripped onto the condensation collector 32 below it.
[0047] Specifically, the connecting plate 311, the inner plate 312 and the condensation plate 313 are an integrated structure and can be integrally formed by casting. A clamping groove is provided on the end surface of the air outlet 103 of the housing 1, and the inner plate 312 is inserted into the clamping groove for fixing, so that the condensation member 31 is convenient to disassemble and assemble.
[0048] Alternatively, if Figure 3 As shown, at least two inner plates 312 are provided, and at least two inner plates 312 are arranged at intervals to form saw teeth. By providing at least two inner plates 312, the temperature can be sensed and conducted more quickly. In this embodiment, three inner plates 312 are provided. It can be understood that two or more inner plates 312 can also be provided. In actual situations, they can be provided as needed, and the specific number of the provided inner plates 312 is not limited here.
[0049] In order to prevent the inner plate 312 from blocking the airflow, the inner plate 312 extends along the axis direction of the air duct 101, and a wind passage is formed between two adjacent inner plates 312. When the airflow flows from the air inlet 102 to the air outlet 103, the inner plate 312 is substantially parallel to the flow direction of the airflow, and does not block the airflow, and the airflow can smoothly pass through the wind passage between the inner plates 312.
[0050] Furthermore, if Figure 4 As shown, the condensation collector 32 includes a collecting plate 321, and a groove 3211 is provided on the collecting plate 321, and the condensation on the condensation member 31 drips into the groove 3211. The condensation is collected by providing the collecting plate 321 and the groove 3211 on the collecting plate 321.
[0051] In order to prevent the liquid collected in the groove 3211 from flowing out, a water absorbent 322 is provided in the groove 3211, and the water absorbent 322 can absorb the dripping condensation. The liquid dripping into the groove 3211 is absorbed by the water absorbent 322 and will not overflow due to the shaking of the device or the excessively high liquid level.
[0052] Specifically, the water absorbent member 322 can be made of a material with strong water absorption such as water absorbent foam or sponge, which can absorb water. The specific material used for the water absorbent member 322 is not limited here.
[0053] Alternatively, if Figure 4 As shown, the collecting plate 321 is arranged on the lower side of the cover body 1 and forms an air duct 101 with the cover body 1. Both ends of the collecting plate 321 extend out of the cover body 1, and a groove 3211 is arranged at the portion of the collecting plate 321 extending out of the cover body 1. The collecting plate 321 and the cover body 1 are arranged as an integrated structure, so that the collecting plate 321 also serves as a structure for forming the air duct 101, thereby improving the integrity of the collecting plate 321 and the cover body 1 and facilitating processing and assembly.
[0054] Furthermore, the inside of the collecting plate 321 is opened up, so that the grooves 3211 at both ends of the collecting plate 321 are connected to form a through accommodation space, and the water absorbing member 322 is inserted into the accommodation space from the opening of the groove 3211 at one end of the collecting plate 321. The dripping condensation flows into the inside of the collecting plate 321 for storage, thereby increasing the accommodation space of the collecting plate 321.
[0055] To facilitate processing and installation, please continue to refer to Figure 4In this embodiment, the cover body 1 is set as a split structure, including an air inlet hood 11 and an air outlet hood 12. The air inlet hood 11 and the air outlet hood 12 are detachably connected, the liquid cooling heat exchanger 2 is arranged in the air inlet hood 11, and the condensation mechanism 3 is arranged in the air outlet hood 12. An air inlet 102 is arranged at one end of the air inlet hood 11 away from the air outlet hood 12, and an air outlet 103 is arranged at one end of the air outlet hood 12 away from the air inlet hood 11. The airflow enters the air inlet hood 11 from the air inlet 102, flows to the air outlet hood 12 after heat exchange and cooling by the liquid cooling heat exchanger 2, and is blown out from the air outlet 103.
[0056] Specifically, the air inlet hood 11 and the air outlet hood 12 are connected by a plurality of bolts, so the connection is firm and the assembly and disassembly is convenient.
[0057] Furthermore, combined with Figure 4 and Figure 5 As shown, the heat exchange device 100 further includes a fan 4, which is disposed on a side of the liquid-cooled heat exchanger 2 close to the air inlet 102 or on a side of the liquid-cooled heat exchanger 2 close to the air outlet 103, and is used to make the air flow flow from the air inlet 102 to the air outlet 103. Figure 4 In the embodiment shown, the fan 4 is arranged on the side of the liquid-cooled heat exchanger 2 close to the air inlet 102, located at one end of the air inlet 102 of the air inlet hood 11, and is used to blow air into the air duct 101; Figure 5 In the embodiment shown, the fan 4 is disposed on the side of the liquid-cooled heat exchanger 2 close to the air outlet 103, and is located at the end of the air inlet hood 11 close to the air outlet 103, for extracting the air flow in the air duct 101. Both of the above two embodiments can form an air flow from the air inlet 102 to the air outlet 103 in the air duct 101.
[0058] For further information, please refer to Figure 4 The liquid-cooled heat exchanger 2 includes a heat exchange fin 21 and a connection portion 22. The connection portion 22 is connected to the heat exchange fin 21 to provide cooling liquid to the heat exchange fin 21 and allow the cooling liquid to flow in the heat exchange fin 21. The connection and driving method between the heat exchange fin 21 and the connection portion 22 are mature technologies in the prior art and will not be described in detail here.
[0059] In this embodiment, combined with Figure 3 and Figure 4 The connecting part 22 includes a support plate 221, a liquid inlet pipe 222 and a liquid outlet pipe 223. The liquid inlet pipe 222 and the liquid outlet pipe 223 are arranged through the support plate 221 and communicated with the heat exchange fins 21. The support plate 221 is set as a flat plate, and the air inlet hood 11 is set on the upper side of the support plate 221. The air inlet hood 11 cooperates with the support plate 221 to cover the heat exchange fins 21.
[0060] Combination Figure 1 As shown, a mounting hole is provided on the bottom plate of the box body 200. When the heat exchange device 100 is installed, the heat exchange fins 21 are inserted into the box body 200 through the mounting hole from the outside of the box body 200, the support plate 221 is pressed against the outer surface of the box body 200 and fixedly connected to the box body 200, and then the cover body 1 is installed in the box body 200.
[0061] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.
Claims
1. A heat exchange device, characterized in that: include: A cover body (1), wherein an air duct (101) is formed inside the cover body (1), an air inlet (102) is provided at one end of the air duct (101), and an air outlet (103) is provided at the other end of the air duct (101); A liquid-cooled heat exchanger (2) is arranged in the air duct (101), and the liquid-cooled heat exchanger (2) is used to perform heat exchange cooling on the airflow in the air duct (101); A condensation mechanism (3) comprises a condensation piece (31) and a condensation collector (32); the condensation piece (31) is arranged on a side of the liquid-cooled heat exchanger (2) close to the air outlet (103) and penetrates the cover body (1); one end of the condensation piece (31) is located in the air duct (101), and the other end of the condensation piece (31) extends to the outside of the cover body (1); the thermal conductivity of the condensation piece (31) is greater than that of the cover body (1); the condensation collector (32) is arranged on the lower side of the condensation piece (31) and is used to collect condensation dripping from the condensation piece (31).
2. The heat exchange device according to claim 1, characterized in that: The condensation element (31) comprises: A connecting plate (311), wherein the connecting plate (311) passes through the cover body (1); An inner plate (312) connected to one end of the connecting plate (311) extending into the air duct (101); A condensation plate (313) is connected to one end of the connection plate (311) extending outside the cover body (1), and the condensation plate (313) extends toward the condensation collector (32).
3. The heat exchange device according to claim 2, characterized in that: At least two inner plates (312) are provided, and at least two inner plates (312) are arranged at intervals.
4. The heat exchange device according to claim 2, characterized in that: The inner plate (312) extends along the axial direction of the air duct (101).
5. The heat exchange device according to claim 1, characterized in that: The condensation collector (32) comprises a collection plate (321), and a groove (3211) is provided on the collection plate (321), and the condensation on the condensation member (31) drips into the groove (3211).
6. The heat exchange device according to claim 5, characterized in that: A water absorbing member (322) is arranged in the groove (3211), and the water absorbing member (322) can absorb the dripping condensation.
7. The heat exchange device according to claim 6, characterized in that: The material of the water absorbing member (322) is water absorbing foam.
8. The heat exchange device according to claim 5, characterized in that: The collecting plate (321) is arranged on the lower side of the cover body (1) and forms the air duct (101) together with the cover body (1); both ends of the collecting plate (321) extend out of the cover body (1); and the groove (3211) is arranged on the portion of the collecting plate (321) extending out of the cover body (1).
9. The heat exchange device according to claim 8, characterized in that: The grooves (3211) at both ends of the collecting plate (321) are connected.
10. The heat exchange device according to any one of claims 1 to 9, characterized in that: The cover body (1) comprises an air inlet hood (11) and an air outlet hood (12); the air inlet hood (11) and the air outlet hood (12) are detachably connected; the liquid-cooled heat exchanger (2) is arranged in the air inlet hood (11); and the condensation mechanism (3) is arranged in the air outlet hood (12).
11. The heat exchange device according to any one of claims 1 to 9, characterized in that: The heat exchange device also includes: A fan (4), wherein the fan (4) is arranged on a side of the liquid-cooled heat exchanger (2) close to the air inlet (102) or on a side of the liquid-cooled heat exchanger (2) close to the air outlet (103), and is used to make the air flow flow from the air inlet (102) to the air outlet (103).
12. An electric energy conversion device, comprising a housing (200) and an electronic device (300) disposed in the housing (200), characterized in that: It also comprises a heat exchange device as claimed in any one of claims 1 to 11, wherein the heat exchange device is arranged in the box body (200), and the air outlet (103) is arranged toward the electronic device (300).