Liquid cooling heat dissipation module and controller

Abstract

The utility model relates to the technical field of controllers, in particular to a liquid cooling heat dissipation module and a controller, the liquid cooling heat dissipation module comprises a shell, the shell is provided with a liquid cooling cavity, and the shell is provided with a liquid inlet and a liquid outlet which are communicated with the liquid cooling cavity; the cover plate is arranged on the shell in a covering manner; the plurality of groups of heat dissipation turbulent flow structures are sequentially arranged in the liquid cooling cavity along the liquid flow direction, are connected with the cover plate or the shell, and are used for carrying out heat dissipation on the plurality of control modules in a one-to-one correspondence manner; and the multiple groups of flow guide fin structures are arranged in the liquid cooling cavity and connected with the cover plate or the shell, and the flow guide fin structures are located between every two adjacent groups of heat dissipation turbulent flow structures. According to the utility model, the flow resistance can be reduced, the heat dissipation capability of the flow channel is considered, and the cooling effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to controller technical field especially relates to a liquid cooling heat dissipation module and controller. BACKGROUND

[0002] IGBT (Insulate-Gate Bipolar Transistor) module is a kind of electronic switch that combines the low drive current of MOS tube and the low on-resistance advantage of transistor, control module can be obtained by encapsulating IGBT chip, and multiple control modules are integrated and commonly used in new energy automobile motor controller.Control module will emit a lot of heat when running, so that the temperature of motor controller rises, and too high temperature can make IGBT chip performance decline or even fail, usually the temperature of chip cannot be higher than 175 DEG C.Therefore, liquid cooling heat dissipation module needs to be arranged in motor controller to dissipate heat for control module in motor controller.

[0003] Generally, the better the heat dissipation performance of the heat dissipation module, the denser the heat dissipation fins arranged in the flow channel, and the more complex the flow channel design, resulting in larger flow resistance of the flow channel, and the cooling effect is not targeted and the cooling effect is general.

[0004] Therefore, a liquid cooling heat dissipation module and controller are needed to solve the above problems. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of liquid cooling heat dissipation module and controller, can reduce flow resistance, while, give consideration to the heat dissipation capacity of flow channel, improve cooling effect.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Liquid cooling heat dissipation module, comprising:

[0008] Shell, the shell has liquid cooling cavity, the shell is equipped with inlet and outlet with the liquid cooling cavity communication on the shell;

[0009] Cover plate, the cover plate is covered in the shell;

[0010] Multiple sets of heat dissipation turbulence structure, multiple sets of the heat dissipation turbulence structure are sequentially arranged in the liquid cooling cavity along liquid flow direction, and are connected with the cover plate or the shell, and multiple sets of the heat dissipation turbulence structure are used to one-to-one heat dissipation for multiple control modules;

[0011] Multiple sets of flow guide fin structure, multiple sets of the flow guide fin structure are arranged in the liquid cooling cavity, and are connected with the cover plate or the shell, and the flow guide fin structure is located between two adjacent groups of the heat dissipation turbulence structure.

[0012] In some embodiments, at least one partition plate is arranged in the liquid cooling cavity, the partition plate divides the liquid cooling cavity into a serpentine flow channel, the liquid inlet is communicated with a liquid inlet end of the serpentine flow channel, and the liquid outlet is communicated with a liquid outlet end of the serpentine flow channel.

[0013] In some embodiments, a transition flow guide fin structure is further included, the transition flow guide fin structure is arranged at a turning of the serpentine flow channel, and the transition flow guide fin structure is connected with the cover plate or the shell.

[0014] In some embodiments, a plurality of first turbulence columns are arranged at the turning liquid outlet of the serpentine flow channel, and the plurality of first turbulence columns are connected with the cover plate or the shell.

[0015] In some embodiments, the heat dissipation turbulence structure comprises a plurality of heat dissipation turbulence columns arranged in an alternating manner.

[0016] In some embodiments, the density of the heat dissipation turbulence columns of the heat dissipation turbulence structure gradually increases along the liquid flow direction.

[0017] In some embodiments, the cross-sectional area of the heat dissipation turbulence column gradually decreases along the liquid flow direction.

[0018] In some embodiments, a plurality of second turbulence columns are arranged at the liquid inlet end of the serpentine flow channel communicated with the liquid inlet, and the plurality of second turbulence columns are connected with the cover plate or the shell.

[0019] In some embodiments, a plurality of flow converging fins are arranged at the liquid outlet end of the serpentine flow channel, a flow converging flow channel is formed between adjacent flow converging fins, and the liquid inlet end opening of the flow converging flow channel is larger than the liquid outlet end opening of the flow converging flow channel.

[0020] A controller comprises a plurality of control modules and a liquid cooling heat dissipation module as described above, and the heat dissipation turbulence structure of the liquid cooling heat dissipation module is arranged in one-to-one correspondence with the plurality of control modules.

[0021] The utility model discloses the beneficial effects of:

[0022] The utility model provides a kind of liquid cooling heat dissipation module, shell has liquid cooling cavity, be equipped with with liquid inlet and liquid outlet of intercommunication with liquid cooling cavity on shell, cover plate cover is equipped on shell, and multiple sets of heat dissipation turbulence structure are arranged in liquid cooling cavity along liquid flow direction interval, heat dissipation turbulence structure is used to heat dissipation one-to-one corresponding multiple control modules, flow guide fin structure is arranged between adjacent heat dissipation turbulence structure, and heat dissipation turbulence structure and flow guide fin structure are connected with cover plate or shell. By arranging heat dissipation turbulence structure, increase the heat dissipation area, to be able to effectively cool for control module. Flow guide fin structure is arranged between adjacent heat dissipation turbulence structure, can reduce flow resistance in the position that does not need heat dissipation, guarantee cooling liquid to flow quickly. By the above setting, while reducing flow resistance, the heat dissipation capacity of flow channel is considered, and cooling effect is improved.

[0023] The utility model provides a kind of controller, including multiple control modules and as above-mentioned liquid cooling heat dissipation module, and the heat dissipation turbulence structure of liquid cooling heat dissipation module is set one-to-one corresponding multiple control modules. Heat dissipation turbulence structure can increase the heat dissipation area, to be able to effectively cool for control module. ACCURACY

[0024] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment of the utility model will be simply introduced as follows, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the content of the embodiment of the utility model and these drawings without the premise of creating creative labor for the ordinary skilled in the art.

[0025] Fig. 1 It is the schematic diagram of a kind of liquid cooling heat dissipation module of the utility model;

[0026] Fig. 2 It is the schematic diagram of the shell in a kind of liquid cooling heat dissipation module of the utility model;

[0027] Fig. 3 It is the front view of the liquid cooling plate in a kind of liquid cooling heat dissipation module of the utility model.

[0028] In the drawing:

[0029] 1, shell;11, liquid inlet;12, liquid outlet;13, partition plate;2, cover plate;3, heat dissipation turbulence structure;31, heat dissipation turbulence column;4, flow guide fin structure;41, flow guide fin;5, transition flow guide fin structure;51, transition flow guide fin;6, first turbulence column;7, second turbulence column;8, busbar. DETAILED DESCRIPTION

[0030] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above-described and hereafter-accompanying drawings.

[0031] In this application, the terms "comprise", "contain", "have" or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not only include those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, the element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

[0032] In this application, the terms "connect", "combine", "couple", "mount" can be direct connection, combination, coupling or mounting, or indirect connection, combination, coupling or mounting. For example, direct connection refers to the connection of two parts or components without the need to set up an intermediate part, and indirect connection refers to the connection of two parts or components with at least one intermediate part, and the two parts or components are connected through the intermediate part. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.

[0033] In this application, those of ordinary skill in the art will understand that the functions performed by the components can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by the parts can also be performed by one part, one component, or multiple parts in combination.

[0034] In this application, the terms "up", "down", "left", "right", "front", "back", and the like are described in the orientation and positional relationship shown in the drawings, and should not be understood as limiting the embodiments of the application. In addition, it is also understood in the context that when referring to one element connected to another element "on" or "under", it can be directly connected to another element "on" or "under", or indirectly connected to another element "on" or "under" through an intermediate element. It should also be understood that the terms "up", "down", "left", "right", "front", "back", and the like not only represent the positive direction, but also can be understood as the side direction. For example, the lower side can include the lower side, the lower left side, the lower right side, the front lower side, and the back lower side, etc.

[0035] During the operation of the motor controller, the control module of the motor controller will generate a large amount of heat. In order to effectively dissipate heat from the motor controller and ensure the effective operation of the motor controller, the motor controller is usually provided with a cooling system. Figs. 1-3The utility model provides a liquid cooling heat dissipation module. The liquid cooling heat dissipation module comprises a shell 1, a cover plate 2, a plurality of heat dissipation turbulence structures 3 and a plurality of flow guide fin structures 4.

[0036] The shell 1 has a liquid cooling cavity, and the shell 1 is provided with a liquid inlet 11 and a liquid outlet 12 which communicate with the liquid cooling cavity. The cover plate 2 is arranged on the shell 1. The plurality of heat dissipation turbulence structures 3 are arranged in the liquid cooling cavity in sequence along the liquid flow direction, and the heat dissipation turbulence structures 3 are connected with the cover plate 2 or the shell 1, and the plurality of heat dissipation turbulence structures 3 are used for corresponding heat dissipation of the plurality of control modules. The plurality of flow guide fin structures 4 are arranged in the liquid cooling cavity, and the flow guide fin structures 4 are connected with the cover plate 2 or the shell 1, and the flow guide fin structures 4 are located between the adjacent two heat dissipation turbulence structures 3.

[0037] By arranging the heat dissipation turbulence structures 3, the heat dissipation area can be increased, so that the control modules can be effectively cooled. By arranging the flow guide fin structures 4 between the adjacent heat dissipation turbulence structures 3, the flow resistance can be reduced at the position without heat dissipation, and the cooling liquid can flow quickly. By the above arrangement, the flow resistance is reduced, the heat dissipation capacity of the flow channel is considered, and the cooling effect is improved.

[0038] In some embodiments, since the controller is in contact with the cover plate 2, the heat dissipation turbulence structures 3 and the flow guide fin structures 4 are arranged on the cover plate 2. The heat generated by the working of the control module of the controller is exchanged with the cooling liquid through the cover plate 2 and the heat dissipation turbulence structures 3, so that the heat of the controller can be quickly dissipated.

[0039] In some embodiments, at least one partition plate 13 is arranged in the liquid cooling cavity, the partition plate 13 divides the liquid cooling cavity to form a serpentine flow channel, the liquid inlet 11 communicates with the liquid inlet end of the serpentine flow channel, and the liquid outlet 12 communicates with the liquid outlet end of the serpentine flow channel. By arranging the partition plate 13, the liquid cooling cavity can be separated. In this embodiment, the partition plate is provided with one piece, so that the liquid cooling cavity is in the shape of U. The liquid inlet 11 and the liquid outlet 12 can be arranged on the same side of the shell 1, so as to reduce the space occupied by the liquid cooling heat dissipation module. At the same time, by arranging the partition plate 13, the cover plate can be supported after the cover plate is installed subsequently. In this embodiment, the partition plate 13 and the shell 1 are integrally formed by stamping process, so as to reduce the manufacturing difficulty and reduce the assembly process. In other embodiments, the partition plate 13 and the shell 1 can be connected by welding or adhesive process. Moreover, a plurality of partition plates 13 can be arranged according to actual needs, which is not limited here.

[0040] In some embodiments, the liquid cooling heat dissipation module further comprises a transition flow guide fin structure 5 located at the turning of the serpentine flow channel, and the transition flow guide fin structure 5 is connected with the cover plate 2 or the shell 1. Specifically, in the present embodiment, the transition flow guide fin structure 5 comprises a plurality of transition flow guide fins 51 in the shape of a circular arc, and the plurality of transition flow guide fins 51 are arranged at equal intervals. Adjacent transition flow guide fins 51 form an arc-shaped flow channel. Moreover, since the corresponding controller part of the transition flow guide fin structure 5 is a non-heat dissipation area, the adoption of the arc-shaped flow channel can reduce the flow resistance and facilitate the rapid passage of the cooling liquid. In other embodiments, the transition flow guide fin structure 5 can also adopt a wave shape, and the like, without being limited here.

[0041] In some embodiments, a plurality of first turbulence columns 6 are arranged at the liquid outlet of the turning of the serpentine flow channel, and the plurality of first turbulence columns 6 are connected with the cover plate 2 or the shell 1. The first turbulence columns 6 are arranged on the cover plate 2, and the density of the first turbulence columns 6 close to the outside of the serpentine flow channel is greater. Through the above arrangement, the cooling liquid flowing from the arc-shaped flow channel can be blocked and disturbed to prevent edge effects, so that the flow distribution of the cooling liquid is more uniform. In the present embodiment, the first turbulence columns 6 are in the shape of a circular column, and in other embodiments, they can also be in the shape of an elliptical column, a prism, and the like, without being limited here.

[0042] In some embodiments, the heat dissipation turbulence structure 3 comprises a plurality of heat dissipation turbulence columns 31 arranged at intervals. By arranging the heat dissipation turbulence columns 31 at intervals, the cooling liquid can be disturbed, thereby effectively cooling the control module of the controller. In the present embodiment, the heat dissipation turbulence columns 31 are in the shape of an elliptical column, which can form a larger heat exchange area. In other embodiments, they can also be in the shape of a circular column, a prism, and the like, without being limited here.

[0043] In some embodiments, the density of the heat dissipation turbulence columns 31 of the plurality of heat dissipation turbulence structures 3 gradually increases along the liquid flow direction. Since the temperature of the cooling liquid entering from the liquid inlet 11 is low, it can have a good cooling effect, and as the temperature of the cooling liquid rises, the cooling effect will decrease. Through the above arrangement, during the circulation of the cooling liquid driven by the pump, the flow speed of the cooling liquid flowing through can gradually increase, and at the same time, the heat exchange area can be increased to counteract the influence of the decrease in the cooling effect caused by the rise in the liquid temperature along the liquid flow direction, thereby ensuring the consistency of the cooling effect of the controller and making the temperature distribution of the controller uniform.

[0044] In some embodiments, the cross-sectional area of the heat dissipation turbulence columns 31 gradually decreases along the liquid flow direction. Through the above arrangement, it is convenient to arrange a larger number of heat dissipation turbulence columns 31 in the serpentine flow channel, thereby increasing the density of the heat dissipation turbulence columns 31.

[0045] In some embodiments, the guide fin structure 4 comprises a plurality of parallel and spaced guide fins 41, which extend along the direction of the liquid flow, and the straight and narrow guide fins 41 in the guide area reduce the flow resistance and ensure the flow speed of the cooling liquid.

[0046] In some embodiments, a plurality of second turbulence columns 7 are arranged at the liquid inlet end of the serpentine flow channel in communication with the liquid inlet 11, and the second turbulence columns 7 are connected with the cover plate 2 or the shell 1. The second turbulence columns 7 can disturb the cooling liquid entering the serpentine flow channel through the liquid inlet 11. In the present embodiment, the second turbulence columns 7 are cylindrical, and in other embodiments, elliptical cylindrical, prismatic, etc., which are not limited here.

[0047] In some embodiments, a plurality of flow converging sheets 8 are arranged at the liquid outlet end of the serpentine flow channel, and the flow converging channels are formed between adjacent flow converging sheets 8, and the liquid inlet opening of the flow converging channel is larger than the liquid outlet opening. The flow converging sheets 8 can converge the cooling liquid flowing out of the liquid outlet 12, and ensure the rapid flow of the cooling liquid.

[0048] The present embodiment also provides a controller comprising a plurality of control modules and the liquid cooling heat dissipation module as above, and the heat dissipation turbulence structure 3 of the liquid cooling heat dissipation module is arranged one-to-one with the plurality of control modules. The heat dissipation turbulence structure 3 can increase the heat dissipation area, thereby effectively cooling the control modules.

[0049] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, other different forms of changes or modifications can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A liquid-cooled heat dissipation module, characterized in that, The application relates to a liquid cooling heat dissipation module for a plurality of control modules. The liquid cooling heat dissipation module comprises a shell (1) provided with a liquid cooling cavity, an inlet (11) and an outlet (12) of the liquid cooling cavity, a cover plate (2) covering the shell (1), a plurality of groups of heat dissipation turbulence structures (3) arranged in the liquid cooling cavity in sequence along a liquid flow direction and connected to the cover plate (2) or the shell (1), and a plurality of groups of flow guide fin structures (4) arranged in the liquid cooling cavity and connected to the cover plate (2) or the shell (1) and located between two adjacent groups of the heat dissipation turbulence structures (3). At least one partition plate (13) is arranged in the liquid cooling cavity, the partition plate (13) divides the liquid cooling cavity into a serpentine flow channel, the inlet (11) is communicated with an inlet end of the serpentine flow channel, and the outlet (12) is communicated with an outlet end of the serpentine flow channel. The liquid cooling heat dissipation module further comprises a transition flow guide fin structure (5) arranged at a turning position of the serpentine flow channel and connected to the cover plate (2) or the shell (1). A plurality of first turbulence columns (6) are arranged at the turning outlet end of the serpentine flow channel and connected to the cover plate (2) or the shell (1).

2. The liquid-cooled heat dissipation module of claim 1, wherein, The heat dissipation turbulence structure (3) comprises a plurality of heat dissipation turbulence columns (31) arranged in an interval and staggered.

3. The liquid-cooled heat dissipation module of claim 2, wherein, The density of the heat dissipation turbulence columns (31) of the plurality of groups of heat dissipation turbulence structures (3) gradually increases along the liquid flow direction.

4. The liquid-cooled heat dissipation module of claim 3, wherein, The cross-sectional area of the heat dissipation turbulence columns (31) gradually decreases along the liquid flow direction.

5. The liquid-cooled heat dissipation module of claim 2, wherein, A plurality of second turbulence columns (7) are arranged at an inlet end of the serpentine flow channel communicated with the inlet (11) and connected to the cover plate (2) or the shell (1).

6. The liquid-cooled heat dissipation module of claim 5, wherein, A plurality of confluence fins (8) are arranged at an outlet end of the serpentine flow channel, a confluence flow channel is formed between adjacent confluence fins (8), and the inlet opening of the confluence flow channel is larger than the outlet opening of the confluence flow channel.

7. The liquid-cooled heat dissipation module of claim 5, wherein, The liquid cooling heat dissipation module comprises a plurality of groups of control modules and the liquid cooling heat dissipation module as claimed in any one of claims 1-9, and the heat dissipation turbulence structure (3) of the liquid cooling heat dissipation module is arranged in one-to-one correspondence with the plurality of groups of control modules.

8. The liquid-cooled heat dissipation module of claim 2, wherein, ​ 9. The liquid-cooled heat dissipation module of claim 2, wherein, ​ 10. A controller characterized by, ​

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