Integrated heat exchange device

Abstract

The utility model relates to an integrated heat exchange device which comprises an evaporation section, a condensation section and a fan, the evaporation section comprises first outer flow channel plates, a flow guide cavity is defined by the multiple first outer flow channel plates, the condensation section comprises second outer flow channel plates, branch flow channel plates and center fins, and a condensation cavity is defined by the multiple second outer flow channel plates; the branch flow channel plate is arranged in the condensation cavity, and the first outer flow channel plate, the second outer flow channel plate and the branch flow channel plate are sequentially communicated to form a working medium circulation loop. The adjacent branch flow channel plates are arranged at intervals to form flow dividing channels, the center fins are connected to the inner walls of the flow dividing channels, the fan can drive gas to flow, and the outer space of the side, away from the condensation section, of the evaporation section, the flow guide cavity, the multiple flow dividing channels and the outer space of the side, away from the evaporation section, of the condensation section are sequentially communicated to form a gas heat exchange flow channel. The power module is arranged on the first outer runner plate. According to the integrated heat exchange device, the problem that the integration degree of a heat exchange system of the power module is not high is solved.

Description

Technical Field

[0001] The present application relates to the technical field of heat pipe heat exchangers, and in particular to an integrated heat exchange device. Background Art

[0002] Typically, the heat exchange system of a power module (including but not limited to heat-generating components such as IGBT modules, battery cells, motors and chips) is mostly composed of a heat pipe heat exchanger, which consists of an evaporation section and a condensation section. The heating end of the power module is fixedly installed on the evaporation section of the heat pipe heat exchanger by contact or embedded means, and the condensation section dissipates heat into the atmosphere by air cooling.

[0003] The heat exchange system of the current power module is composed of a plurality of independently operated heat pipe heat exchangers. As a result, the plurality of heat pipe heat exchangers are arranged in a relatively dispersed manner, resulting in a large overall volume, which is not conducive to the miniaturization of the heat exchange system. Utility Model Content

[0004] Based on this, it is necessary to provide an integrated heat exchange device, so as to solve the problem that the existing heat exchange system of the power module is not highly integrated.

[0005] The integrated heat exchange device provided by the present application includes an evaporation section, a condensation section and a fan. The evaporation section includes a first outer flow channel plate, a plurality of first outer flow channel plates are connected end to end and are arranged to form a guide cavity. The condensation section includes a second outer flow channel plate, a branch flow channel plate and a central fin. A plurality of second outer flow channel plates are connected end to end and are arranged to form a condensation cavity connected to the guide cavity. A plurality of branch flow channel plates are arranged in the condensation cavity. The first outer flow channel plate, the second outer flow channel plate and the branch flow channel plate are connected in sequence to form a circulation loop of the working medium. Adjacent branch flow channel plates are arranged at intervals to form a shunt channel. Each shunt channel is correspondingly provided with a central fin, and the central fin is connected to the inner wall of the shunt channel. The fan can drive the gas flow, and the external space of the evaporation section away from the condensation section, the guide cavity, the plurality of shunt channels and the external space of the condensation section away from the evaporation section are connected in sequence to form a heat exchange flow channel for the gas. The power module is arranged on the first outer flow channel plate.

[0006] In one embodiment, the fan is disposed on a side of the condensing section away from the evaporating section.

[0007] In one embodiment, an end of the diversion channel away from the guide cavity is an air outlet, and an end of the guide cavity away from the diversion channel is an air inlet.

[0008] In one embodiment, an end of the diversion channel away from the guide cavity is an air inlet, and an end of the guide cavity away from the diversion channel is an air outlet.

[0009] In one of the embodiments, the integrated heat exchange device also includes an air guide hood, which is arranged at the end of the condensation section away from the evaporation section, and the air guide hood is provided with an air guide cavity connecting each diversion channel, and the end of the air guide hood away from the condensation section is provided with a circular connecting hole connecting the air guide cavity, and the fan is arranged at the connecting hole and coaxially with the connecting hole.

[0010] In one of the embodiments, the integrated heat exchange device further includes an air shield, which is sleeved on the outside of the fan, and the air shield and the connecting hole are coaxially arranged.

[0011] In one embodiment, the fan is arranged on a side of the evaporation section away from the condensation section.

[0012] In one embodiment, an end of the diversion channel away from the guide cavity is an air outlet, and an end of the guide cavity away from the diversion channel is an air inlet.

[0013] In one embodiment, an end of the diversion channel away from the guide cavity is an air inlet, and an end of the guide cavity away from the diversion channel is an air outlet.

[0014] In one embodiment, the condensation section further includes peripheral fins, which are arranged around the outer periphery of the condensation section, and the peripheral fins are attached to and installed on the second outer flow channel plate.

[0015] Compared with the prior art, the integrated heat exchange device provided by the present application is equivalent to integrating multiple heat pipe heat exchangers. Compared with multiple independently arranged heat pipe heat exchangers, the integrated heat exchange device of the present application has greatly improved integration and effectively reduced volume. In addition, through the through-type gas channel design of the evaporation section and the condensation section, on the one hand, the heat dissipation efficiency of the condensation section is greatly improved, and on the other hand, it can avoid the hot air generated by adjacent heat pipe heat exchangers from interfering with each other and affecting the overall heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic structural diagram of an integrated heat exchange device according to an embodiment of the present application;

[0018] Figure 2 An exploded view of an integrated heat exchange device according to an embodiment of the present application;

[0019] Figure 3 A top view of a condensing section of an integrated heat exchange device according to an embodiment of the present application;

[0020] Figure 4 A schematic structural diagram of a central fin according to an embodiment of the present application.

[0021] Figure numerals: 100, evaporation section; 110, first outer flow channel plate; 111, guide cavity; 200, condensation section; 210, second outer flow channel plate; 211, condensation cavity; 220, branch flow channel plate; 221, diversion channel; 230, central fin; 240, outer fin; 300, fan; 400, air guide cover; 410, air guide cavity; 420, connecting hole; 500, wind shield; 600, power module. DETAILED DESCRIPTION

[0022] Typically, the heat exchange system of a power module (including but not limited to heat-generating components such as IGBT modules, battery cells, motors and chips) is mostly composed of a heat pipe heat exchanger, which consists of an evaporation section and a condensation section. The heating end of the power module is fixedly installed on the evaporation section of the heat pipe heat exchanger by contact or embedded means, and the condensation section dissipates heat into the atmosphere by air cooling.

[0023] The heat exchange system of the current power module is composed of a plurality of independently operated heat pipe heat exchangers. As a result, the plurality of heat pipe heat exchangers are arranged in a relatively dispersed manner, resulting in a large overall volume, which is not conducive to the miniaturization of the heat exchange system.

[0024] See also Figure 1-Figure 4 Therefore, in order to solve the problem of low integration of the heat exchange system of the existing power module, the present application provides an integrated heat exchange device, which includes an evaporation section 100, a condensation section 200 and a fan 300. The evaporation section 100 includes a first outer flow channel plate 110. Multiple first outer flow channel plates 110 are connected end to end and are surrounded to form a guide cavity 111.

[0025] like Figure 1 and Figure 2 As shown, the condensation section 200 includes a second outer flow channel plate 210 , a branch flow channel plate 220 and a central fin 230 . A plurality of second outer flow channel plates 210 are connected end to end and surround a condensation chamber 211 that is connected to the guide chamber 111 .

[0026] Specifically, in one embodiment, four first outer flow channel plates 110 are arranged to form a square structure, and correspondingly, four second outer flow channel plates 210 are arranged to form a square structure, and the first outer flow channel plates 110 and the second outer flow channel plates 210 are arranged in a one-to-one correspondence.

[0027] It should be noted that the adjacent first outer flow channel plates 110 can be formed by welding, bonding or integral processing. Similarly, the adjacent second outer flow channel plates 210 can be formed by welding, bonding or integral processing.

[0028] However, the present invention is not limited thereto. In other embodiments, the number of the first outer flow channel plate 110 and the second outer flow channel plate 210 may be three, five or other numbers, which are not listed here one by one.

[0029] like Figure 1 and Figure 2 As shown, a plurality of branch flow channel plates 220 are arranged in parallel in the condensing chamber 211, and the first outer flow channel plate 110, the second outer flow channel plate 210 and the branch flow channel plate 220 are connected in sequence to form a circulation loop of the working medium.

[0030] Specifically, when the number of the second outer flow channel plates 210 is four, both ends of the branch flow channel plate 220 are respectively connected to two oppositely arranged second outer flow channel plates 210 .

[0031] It should be noted that some of the branch channel plates 220 may be arranged in parallel along the first direction, and another part of the branch channel plates 220 may be arranged in parallel along the second direction. The first direction and the second direction may be perpendicular or arranged at an acute angle.

[0032] In one embodiment, the condensation section 200 is disposed above the evaporation section 100 so that the liquid working medium in the condensation section 200 can be condensed and refluxed to the evaporation section 100 by gravity.

[0033] But not limited to this, in other embodiments, the condensing section 200 can also be arranged on one side of the evaporating section 100, or even, the condensing section 200 can be arranged below the evaporating section 100, and the liquid working medium in the condensing section 200 is driven by a liquid pump to flow back to the evaporating section 100.

[0034] like Figure 1 and Figure 2 As shown, adjacent branch channel plates 220 are arranged at intervals to form a flow distribution channel 221 . Each flow distribution channel 221 is correspondingly provided with a central fin 230 , and the central fin 230 is connected to the inner wall of the flow distribution channel 221 .

[0035] It should be noted that the center fin 230 is used to absorb the heat transferred from the side wall of the diverter channel 221. Therefore, the center fin 230 can be welded to the inner wall of the diverter channel 221, or the center fin 230 can also be snapped or bonded to the inner wall of the diverter channel 221 through thermal conductive silicone.

[0036] like Figure 1 and Figure 2As shown, the fan 300 can drive the gas flow and connect the external space of the evaporation section 100 away from the condensation section 200, the guide cavity 111, the multiple diversion channels 221 and the external space of the condensation section 200 away from the evaporation section 100 in sequence to form a heat exchange flow channel for gas (including but not limited to air, nitrogen or other gases).

[0037] It should be noted that when the condensing section 200 is disposed above the evaporating section 100, the bottom of the evaporating section 100 needs to be designed to be suspended. Specifically, a bracket may be disposed at the bottom of the evaporating section 100, or a groove may be formed at the bottom of the evaporating section 100. When the condensing section 200 and the evaporating section 100 are not disposed completely vertically, the guide cavity 111 may be disposed to be inclined so that the guide cavity 111 is connected to the external space.

[0038] Embodiment 1

[0039] In one embodiment, if Figure 1 and Figure 2 As shown, the fan 300 is arranged on the side of the condensing section 200 away from the evaporating section 100, so that the fan 300 can communicate with the external space of the evaporating section 100 away from the condensing section 200 through multiple diversion channels 221 and the guide cavity 111 in sequence.

[0040] It should be noted that a motor (not shown) for driving the fan 300 to rotate can be disposed between the fan 300 and the condensing section 200 to further reduce the volume of the integrated heat exchange device.

[0041] Furthermore, in one embodiment, the airflow generated by the fan 300 flows in a direction away from the condensing section 200, that is, in this embodiment, the end of the diversion channel 221 away from the guide cavity 111 is an air outlet, and the end of the guide cavity 111 away from the diversion channel 221 is an air inlet.

[0042] With such arrangement, the fan 300 can draw gas in the diversion channel 221 to form a negative pressure environment, so that external gas enters each diversion channel 221 through the guide cavity 111, thereby forming an airflow flowing from the evaporation section 100 to the condensation section 200.

[0043] Furthermore, in another embodiment, the airflow generated by the fan 300 flows in the direction facing the condensing section 200, that is, in this embodiment, the end of the diversion channel 221 away from the guide cavity 111 is the air inlet, and the end of the guide cavity 111 away from the diversion channel 221 is the air outlet.

[0044] With such arrangement, the fan 300 can fill the diverter channel 221 with gas to form a pressurized environment, so that the gas in each diverter channel 221 enters the external space through the guide cavity 111, thereby forming an airflow flowing from the condensation section 200 to the evaporation section 100.

[0045] Further, in one embodiment, if Figure 1 and Figure 2 As shown, the integrated heat exchange device also includes an air guide cover 400, which is arranged at the end of the condensing section 200 away from the evaporating section 100, and the air guide cover 400 is provided with an air guide cavity 410 connecting each diversion channel 221, and the end of the air guide cover 400 away from the condensing section 200 is provided with a circular connecting hole 420 connecting the air guide cavity 410, and the fan 300 is arranged at the connecting hole 420 and is coaxially arranged with the connecting hole 420.

[0046] With such arrangement, the air guide cover 400 can play the role of collecting flow.

[0047] Furthermore, in one embodiment, if Figure 1 and Figure 2 As shown, the integrated heat exchange device further includes an air shield 500 , which is sleeved on the outside of the fan 300 , and the air shield 500 and the connecting hole 420 are coaxially arranged.

[0048] Specifically, both ends of the wind shield 500 are connected, and one end of the wind shield 500 is welded to the wind guide cover 400 .

[0049] With such arrangement, the wind shield 500 can guide the airflow generated by the fan 300 and prevent turbulence from being generated at the connecting hole 420 .

[0050] Embodiment 2

[0051] In one embodiment, the fan 300 is disposed on the side of the evaporation section 100 away from the condensation section 200 so that the fan 300 can connect to the external space of the condensation section 200 away from the evaporation section 100 through the guide cavity 111 and multiple diversion channels 221 in sequence.

[0052] It should be noted that a motor (not shown) for driving the fan 300 to rotate may be disposed between the fan 300 and the evaporation section 100 to further reduce the volume of the integrated heat exchange device.

[0053] Furthermore, in one embodiment, the airflow generated by the fan 300 flows in a direction facing the evaporation section 100, that is, in this embodiment, the end of the diversion channel 221 away from the guide cavity 111 is the air outlet, and the end of the guide cavity 111 away from the diversion channel 221 is the air inlet.

[0054] With such arrangement, the fan 300 can fill the guide cavity 111 with gas to form a pressurized environment, so that the gas in the guide cavity 111 enters the external space through each diversion channel 221, thereby forming an airflow flowing from the evaporation section 100 to the condensation section 200.

[0055] Furthermore, in another embodiment, the airflow generated by the fan 300 flows in a direction away from the evaporation section 100, that is, in this embodiment, the end of the diversion channel 221 away from the guide cavity 111 is the air inlet, and the end of the guide cavity 111 away from the diversion channel 221 is the air outlet.

[0056] With such arrangement, the fan 300 can draw gas from the guide cavity 111 to form a negative pressure environment, so that external gas enters the guide cavity 111 through each diversion channel 221, thereby forming an airflow flowing from the condensation section 200 to the evaporation section 100.

[0057] like Figure 1 and Figure 2 As shown, a plurality of power modules 600 are respectively arranged on each first outer flow channel plate 110 .

[0058] Specifically, one or more power modules 600 can be attached to the surface of the first outer flow channel plate 110, or partially immersed in the first outer flow channel plate 110 and sealed and welded to the shell of the first outer flow channel plate 110, or the power module 600 can be completely immersed in the liquid working medium of the first outer flow channel plate 110.

[0059] More specifically, in one embodiment, the power module 600 is bonded to the outer wall surface of the first outer flow channel plate 110 by thermal grease. In the working state, the top height of the power module 600 is lower than the liquid level of the liquid working medium in the first outer flow channel plate 110 .

[0060] The working principle of the integrated heat exchange device is as follows: the power module 600 disposed on the first outer flow channel plate 110 releases heat, and the working medium in the first outer flow channel plate 110 absorbs heat and vaporizes, then enters the second outer flow channel plate 210, and enters each branch flow channel plate 220 respectively, and then the heat of the gaseous working medium is transferred to the central fin 230 through the second outer flow channel plate 210 and the branch flow channel plate 220, and at this time, the gaseous working medium condenses and flows back to the first outer flow channel plate 110. Finally, the gas in the diversion channel 221 flows through the surface of the central fin 230 and takes away the heat of the central fin 230, thereby completing the heat exchange of the power module 600.

[0061] With such a configuration, the integrated heat exchange device is equivalent to integrating multiple heat pipe heat exchangers. Compared with multiple independently arranged heat pipe heat exchangers, the integrated heat exchange device of the present application has a greatly improved integration degree and effectively reduced volume. In addition, through the through-type gas channel design of the evaporation section 100 and the condensation section 200, on the one hand, the heat dissipation efficiency of the condensation section 200 is greatly improved, and on the other hand, it can avoid the hot air generated by adjacent heat pipe heat exchangers from interfering with each other and affecting the overall heat dissipation efficiency.

[0062] In one embodiment, if Figure 3As shown, the condensation section 200 further includes peripheral fins 240 , which are arranged around the outer periphery of the condensation section 200 , and the peripheral fins 240 are attached to and installed on the second outer flow channel plate 210 .

[0063] Such an arrangement greatly expands the heat exchange area of ​​the condensing section 200 and improves the heat exchange efficiency of the integrated heat exchange device.

[0064] Further, in one embodiment, if Figure 4 As shown, the central fins 230 and the peripheral fins 240 are arranged in a zigzag staggered manner to improve their own heat exchange effect.

[0065] However, it is not limited thereto. In other embodiments, the central fin 230 and the peripheral fin 240 may also be arranged in a straight-through manner.

[0066] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

[0068] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0069] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0070] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0071] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0072] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0073] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

Claims

1. An integrated heat exchange device, characterized in that: The invention comprises an evaporation section (100), a condensation section (200) and a fan (300), wherein the evaporation section (100) comprises a first outer flow channel plate (110), a plurality of the first outer flow channel plates (110) are connected end to end and surround a guide cavity (111), the condensation section (200) comprises a second outer flow channel plate (210), a branch flow channel plate (220) and a central fin (230), a plurality of the second outer flow channel plates (210) are connected end to end and surround a condensation cavity (211) connected to the guide cavity (111), a plurality of the branch flow channel plates (220) are arranged in the condensation cavity (211), and the first outer flow channel plate (110), the second outer flow channel plate (210) and the branch flow channel plate (220) are connected in sequence to form a circulation loop of a working medium; Adjacent branch flow channel plates (220) are arranged at intervals to form a shunt channel (221), each of the shunt channels (221) is provided with a corresponding central fin (230), and the central fin (230) is connected to the inner wall of the shunt channel (221). The fan (300) can drive the gas to flow, and make the external space of the evaporation section (100) away from the condensation section (200), the guide cavity (111), the plurality of shunt channels (221) and the external space of the condensation section (200) away from the evaporation section (100) be connected in sequence to form a heat exchange flow channel for the gas, and the power module (600) is arranged on the first outer flow channel plate (110).

2. The integrated heat exchange device according to claim 1, characterized in that: The fan (300) is arranged on a side of the condensing section (200) facing away from the evaporating section (100).

3. The integrated heat exchange device according to claim 2, characterized in that: One end of the diversion channel (221) away from the flow guiding cavity (111) is an air outlet, and one end of the flow guiding cavity (111) away from the diversion channel (221) is an air inlet.

4. The integrated heat exchange device according to claim 2, characterized in that: One end of the diversion channel (221) away from the flow guiding cavity (111) is an air inlet, and one end of the flow guiding cavity (111) away from the diversion channel (221) is an air outlet.

5. The integrated heat exchange device according to claim 2, characterized in that: The invention also includes an air guide cover (400), wherein the air guide cover (400) is arranged at one end of the condensing section (200) away from the evaporating section (100), and the air guide cover (400) is provided with an air guide cavity (410) connected to each of the diversion channels (221); the end of the air guide cover (400) away from the condensing section (200) is provided with a circular connecting hole (420) connected to the air guide cavity (410); and the fan (300) is arranged at the connecting hole (420) and is coaxially arranged with the connecting hole (420).

6. The integrated heat exchange device according to claim 5, characterized in that: It also includes a wind shield (500), wherein the wind shield (500) is sleeved on the outside of the fan (300), and the wind shield (500) and the connecting hole (420) are coaxially arranged.

7. The integrated heat exchange device according to claim 1, characterized in that: The fan (300) is arranged on a side of the evaporation section (100) away from the condensation section (200).

8. The integrated heat exchange device according to claim 7, characterized in that: One end of the diversion channel (221) away from the flow guiding cavity (111) is an air outlet, and one end of the flow guiding cavity (111) away from the diversion channel (221) is an air inlet.

9. The integrated heat exchange device according to claim 7, characterized in that: One end of the diversion channel (221) away from the flow guiding cavity (111) is an air inlet, and one end of the flow guiding cavity (111) away from the diversion channel (221) is an air outlet.

10. The integrated heat exchange device according to claim 1, characterized in that: The condensation section (200) further comprises an outer fin (240), wherein the outer fin (240) is arranged around the outer peripheral side of the condensation section (200), and the outer fin (240) is attached to and mounted on the second outer flow channel plate (210).

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