CN219086078U - Water cooling plate assembly for battery pack and battery pack - Google Patents

Abstract

The utility model relates to the technical field of water cooling plates, and discloses a water cooling plate assembly for a battery pack and the battery pack, which comprise a body and a battery pack, wherein the body comprises a cooling plate and a reflux plate, an isolation layer is arranged between the cooling plate and the reflux plate through bolt pressing, a cooling cavity and a reflux cavity are respectively formed in the inner walls of the cooling plate and the reflux plate, a water inlet pipe is arranged in the cooling cavity, reflux holes penetrating up and down are formed in the surfaces of the cooling plate, the reflux plate and the isolation layer, and a communication groove is formed in the inner walls of the cooling cavity. The utility model provides a water cooling plate with a brand new design, which can enable cooling water to rapidly flow anticlockwise centripetally to the central area of the cooling plate along the inner wall of the water inlet pipe when entering the inside of the water inlet pipe along the inlet of the water inlet pipe, so that the flow speed is faster than that of a conventional S-shaped pavement to cover the cooling surface of the whole cooling plate, and meanwhile, the surface heat transfer of the cooling plate is more uniform.

Description

Water-cooled plate assemblies for battery packs and battery packs

technical field

The utility model relates to the technical field of water-cooled plates, more specifically, the utility model relates to a water-cooled plate assembly and a battery pack for battery packs.

Background technique

New energy vehicles mainly rely on battery-driven motors to move forward, which can avoid direct carbon emissions. Among them, the battery pack is an important part of new energy vehicles. When it is working, it will be equipped with a water-cooled plate for continuous cooling to achieve the purpose of heat exchange and cooling. , the water-cooled plate is mainly a metal plate with a built-in cooling pipeline. Among them, the water-cooled plate in the prior art mainly uses "S"-shaped pipelines to extend the length of the cooling pipeline inside the water-cooled plate to achieve the purpose of improving the cooling effect, but this This design will cause the distance between the water inlet and outlet pipes to be relatively close, and cause uneven contact of the cooling surface during the heating process of the battery pack, which is not conducive to achieving uniform heat dissipation and cooling of the battery pack.

Utility model content

In order to overcome the deficiencies of the prior art, the utility model provides a water-cooled plate assembly and a battery pack for the battery pack, which have the advantages of uniform cooling, effective avoidance of uneven heat transfer and buffering caused by heat convection.

In order to achieve the above object, the utility model provides the following technical solutions: the water-cooled plate assembly and the battery pack used for the battery pack include a body and a battery pack, the body includes a cooling plate and a return plate, and the cooling plate and the return plate The isolation layer is installed by bolt pressing, the inner walls of the cooling plate and the return plate are respectively provided with a cooling cavity and a return cavity, the inside of the cooling cavity is installed with a water inlet pipe, the cooling plate, the return plate and the isolation layer The surface is provided with up and down return holes, and the inner wall of the cooling cavity is also provided with a communication groove. The inner wall of the return cavity is fixed with a support plate, and a guide plate is installed between the support plate and the top of the return cavity inner wall. plate, and the front of the isolation layer is fixedly plugged with a water outlet pipe.

As a preferred technical solution of the present invention, fixing holes are provided at the four corners of the cooling plate, the return plate and the isolation layer, the bolts are threaded on the inner wall of the fixing hole, and both sides of the battery pack are installed There is a mounting plate, and the surface of the mounting plate is provided with mounting holes;

The battery pack and the main body are distributed up and down. The battery pack obtains heat exchange and cooling resources through the cooling plate on the upper surface of the main body. The bolts are installed in it through the mounting plate to complete the detachable connection between the main body and the battery pack.

As a preferred technical solution of the present invention, the isolation layer is made of rubber blocks, and the isolation layer is extruded and installed between the cooling plate and the return plate;

The isolation layer is installed between the cooling plate and the return plate by pressing, so as to seal the gap between the cooling plate and the isolation layer, realize the stable circulation of cooling water from top to bottom, complete the water circulation operation, and the isolation layer can also The cooling plate and the return plate are isolated to prevent the contact between the return plate and the cooling plate and affect the temperature on the surface of the cooling plate, thereby reducing the heat dissipation and cooling effect of the cooling plate.

As a preferred technical solution of the present invention, the top of the reflow plate is integrated by welding and fixing, and the deflector and the support plate are installed first and then welded and packaged with the top of the reflow plate;

The top of the reflow plate is welded and integrated. Now there is a reflow cavity inside the reflow plate, and then the support plate and the deflector are welded and installed in sequence. Therefore, in industrial operations, the installation of the deflector and support plate inside the reflow plate is necessary. feasible.

As a preferred technical solution of the present utility model, the top of the support plate is provided with a slope that is low on the left and high on the right, the horizontal section of the deflector is a vortex line, and the direction of the water inlet pipe is also a vortex. line, the inlet pipe and deflector are made of brass;

The slope design of the support plate is conducive to shifting the cooling water entering the return cavity to the left, thereby speeding up the water flow, increasing the contact area between the water flow and the deflector, and improving the heat exchange efficiency of the cooling water. The vortex shape of the deflector The line design helps to prolong the retention time of the heat-exchanged cooling water inside the return cavity, helps the deflector to consume the heat in the cooling water, and reduces the working pressure of the external cooling box.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. This utility model provides a newly designed water-cooled plate, which is mainly composed of a cooling plate, a return plate, and an isolation layer that is pressed and installed between the cooling plate and the return plate, and the whole is pressed and installed together by fixing holes and bolts , by opening a cooling cavity with a vortex line design inside the cooling plate and inserting the water inlet pipe, so that when the cooling water enters the water inlet pipe along the inlet of the water inlet pipe, it can quickly flow counterclockwise along the inner wall of the water inlet pipe The centripetal flow to the central area of the cooling plate not only covers the entire cooling surface of the cooling plate faster than the conventional “S”-shaped channel, but also makes the heat transfer on the surface of the cooling plate more uniform.

2. Then, by opening a communication groove inside the cooling plate, and opening a return hole in the middle of the cooling plate, the return plate and the isolation layer, the cooling water is led downward to the return cavity inside the return plate, and passes through the deflector Further heat absorption, thereby reducing the recooling pressure of the cooling water when it returns to the cooling box. In addition, by setting an isolation layer, it is pressed and installed between the cooling plate and the return plate with its rubber material, which can effectively isolate the cooling plate and the return plate. The heat transfer between the return plates enables the cooling plate to focus more on water cooling and heat exchange operations. At the same time, the isolation layer can be squeezed and deformed, and has a certain buffer protection function.

Description of drawings

Figure 1 is a schematic diagram of separation of the utility model body and battery pack;

Fig. 2 is the separation schematic diagram of the utility model body;

Fig. 3 is the internal sectional schematic diagram of the body of the utility model;

Fig. 4 is the internal sectional schematic diagram of the utility model recirculation plate;

Fig. 5 is a schematic cutaway view of the interior of the cooling plate of the present invention.

In the figure: 1. Body; 11. Cooling plate; 12. Return plate; 13. Isolation layer; 14. Fixing hole; 15. Bolt; 16. Water inlet pipe; 17. Water outlet pipe; 18. Cooling cavity; ; 110, return cavity; 111, deflector; 112, support plate; 113, communication groove; 2, battery pack; 3, mounting plate; 4, mounting hole.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figures 1 to 5, the utility model provides a water-cooled plate assembly for a battery pack and a battery pack, including a body 1 and a battery pack 2, the body 1 includes a cooling plate 11 and a return plate 12, the cooling plate 11 and a return plate An isolation layer 13 is installed between the plates 12 by bolts 15. The inner walls of the cooling plate 11 and the return plate 12 are respectively provided with a cooling cavity 18 and a return cavity 110. The inside of the cooling cavity 18 is equipped with a water inlet pipe 16. The cooling plate 11, The surfaces of the return plate 12 and the isolation layer 13 are provided with return holes 19 that penetrate up and down, and the inner wall of the cooling chamber 18 is also provided with a communication groove 113. The inner wall of the return chamber 110 is fixedly equipped with a support plate 112, the support plate 112 and the return chamber 110. A deflector 111 is installed between the tops of the inner walls, and the front of the isolation layer 13 is fixedly plugged with a water outlet pipe 17;

The water-cooled plate is composed of a cooling plate 11, a return plate 12, and an isolation layer 13, which are pressed and installed by bolts 15. The cooling cavity 18 designed with a vortex line is opened inside the cooling plate 11 to insert and place the water inlet pipe 16, so that When the cooling water enters the interior of the water inlet pipe 16 along the inlet of the water inlet pipe 16, it can quickly flow counterclockwise and centripetally along the inner wall of the water inlet pipe 16 to the central area of the cooling plate 11, not only the flow rate is more conventional "S" type corridor The cooling surface of the entire cooling plate 11 is covered faster, and at the same time, the heat transfer on the surface of the cooling plate 11 is more uniform.

Then, by opening the communication groove 113 in the inside of the cooling plate 11, and opening the return hole 19 in the middle of the cooling plate 11, the return plate 12 and the isolation layer 13, the cooling water is led downward to the return flow chamber inside the return plate 12 110, through the deflector plate 111 to further absorb heat, thereby reducing the pressure of recooling when the cooling water returns to the cooling box. In addition, by setting the isolation layer 13, it is pressed and installed on the cooling plate 11 and the return plate with its rubber material Between 12, the heat transfer between the cooling plate 11 and the return plate 12 can be effectively isolated, so that the cooling plate 11 can focus more on water cooling and heat exchange operations. At the same time, the isolation layer 13 can be squeezed and deformed, and has a certain buffer protection function.

Wherein, the four corners of the cooling plate 11, the return plate 12 and the isolation layer 13 are all provided with fixing holes 14, and the bolts 15 are threadedly installed on the inner wall of the fixing holes 14, and the two sides of the battery pack 2 are equipped with a mounting plate 3, and the mounting plate 3 There are installation holes 4 on the surface;

The battery pack 2 and the main body 1 are distributed up and down. The battery pack 2 obtains heat exchange and cooling resources by pressing down on the cooling plate 11 on the upper surface of the main body 1, and installs the bolts 15 in it through the mounting plate 3 to complete the main body 1 and the battery. Pack of 2 detachable connections.

Wherein, the isolation layer 13 is made of rubber blocks, and the isolation layer 13 is extruded and installed between the cooling plate 11 and the return plate 12;

The isolation layer 13 is installed between the cooling plate 11 and the return plate 12 by pressing, thereby sealing the gap between the cooling plate 11 and the isolation layer 13, realizing the stable circulation of cooling water from top to bottom, and completing the water circulation operation, and The isolation layer 13 can also isolate the cooling plate 11 and the return plate 12 , avoiding the contact between the return plate 12 and the cooling plate 11 and affecting the surface temperature of the cooling plate 11 , and reducing the cooling effect of the cooling plate 11 .

Wherein, the top of the reflow plate 12 is integrated by welding and fixing, and the deflector 111 and the support plate 112 are installed first and then welded and packaged with the top of the reflow plate 12;

The top of the reflow plate 12 is welded and integrated. Now the reflow chamber 110 is opened inside the reflow plate 12, and then the support plate 112 and the deflector 111 are welded and installed in sequence. Therefore, in industrial operation, the deflector inside the reflow plate 12 111 and support plate 112 installations are feasible.

Wherein, the top of the support plate 112 is provided with a slope with a low left and a high right, the horizontal section shape of the deflector 111 is a vortex line, and the direction of the water inlet pipe 16 is also a vortex line, the water inlet pipe 16 and the deflector 111 have made of brass;

The slope design of the support plate 112 is conducive to making the cooling water entering the return cavity 110 shift to the left, thereby speeding up the water flow speed, increasing the contact area between the water flow and the deflector 111, and improving the heat exchange efficiency of the cooling water. The vortex line design of 111 helps prolong the retention time of the heat-exchanged cooling water inside the return cavity 110, helps the deflector 111 consume the heat in the cooling water, and reduces the working pressure of the external cooling box.

Working principle and application process of the utility model:

The water-cooled plate is mainly composed of a cooling plate 11, a return plate 12, and an isolation layer 13 that is pressed and installed between the cooling plate 11 and the return plate 12. The whole is pressed and installed together through the fixing hole 14 and the bolt 15. The top of 11 is in contact with the battery pack 2. During the water cooling operation, the cooling water is pumped into the water inlet pipe 16, and the water flows through the vortex line design of the water inlet pipe 16 and gradually moves to the center of the cooling plate 11. At this time, the cooling plate 11 as a whole Cooling and cooling the battery pack 2, the cooling water that absorbs heat enters the interior of the return cavity 110 along the communication groove 113 and the return hole 19, and continues to absorb heat by the deflector 111, because the isolation layer 13 separates the cooling plate 11 and The return plate 12 is isolated, and the cooling water (carrying residual temperature) entering the return plate 12 will not reversely heat the cooling plate 11, and the cooling water will move counterclockwise centrifugally along the inner wall of the deflector 111 inside the return cavity 110 , and discharge along the water outlet pipe 17, and re-enter the water inlet pipe 16 inside through the cooling box to complete a cooling water cycle.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (5)

1. A water-cooled plate assembly and a battery pack for a battery pack, comprising a body (1) and a battery pack (2), characterized in that: the body (1) includes a cooling plate (11) and a return plate (12), An isolation layer (13) is installed between the cooling plate (11) and the return plate (12) by bolts (15), and the inner walls of the cooling plate (11) and the return plate (12) are respectively provided with cooling chambers (18) and return cavity (110), the inside of described cooling cavity (18) is equipped with water inlet pipe (16), and the surface of described cooling plate (11), return plate (12) and isolation layer (13) all opens There is a return hole (19) through up and down, the inner wall of the cooling cavity (18) is also provided with a communication groove (113), and the inner wall of the return cavity (110) is fixedly installed with a support plate (112), the support plate A deflector (111) is installed between (112) and the top of the inner wall of the return cavity (110), and the front of the isolation layer (13) is fixedly inserted with an outlet pipe (17). 2. The water-cooled plate assembly and battery pack for battery packs according to claim 1, characterized in that: four corners of the cooling plate (11), the return plate (12) and the isolation layer (13) are provided with The fixing hole (14), the bolt (15) is threadedly installed on the inner wall of the fixing hole (14), the both sides of the battery pack (2) are equipped with a mounting plate (3), and the mounting plate (3) Mounting holes (4) are provided on the surface. 3. The water-cooled plate assembly and battery pack for battery packs according to claim 1, characterized in that: the isolation layer (13) is made of rubber blocks, and the isolation layer (13) is extruded and mounted on Between the cooling plate (11) and the return plate (12). 4. The water-cooled plate assembly and battery pack for battery packs according to claim 1, characterized in that: the top of the reflow plate (12) is welded and fixed integrally, and the deflector (111) and the support The board (112) is first installed and then packaged with the top of the reflow board (12) by welding. 5. The water-cooled plate assembly and battery pack for battery packs according to claim 1, characterized in that: the top of the support plate (112) is provided with a slope that is low on the left and high on the right, and the deflector (111 ) is a vortex line, and the direction of the water inlet pipe (16) is also a vortex line, and the water inlet pipe (16) and the deflector (111) are all made of brass.

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