Heat exchange device, battery pack and vehicle

Abstract

The application provides a heat exchange device, a battery pack and a vehicle. The heat exchange device (100) comprises a first heat exchange part and a second heat exchange part. The first heat exchange part is suitable for covering a first part of a first surface of a battery. The second heat exchange part is suitable for covering a tray bearing part. The tray bearing part is used for bearing the battery and covering a second part of the first surface of the battery. The heat exchange device can cover a mounting area of the battery. The heat exchange efficiency is improved by increasing the heat exchange area, so that the power performance of the battery is ensured.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, specifically to a heat exchange device, a battery pack, and a vehicle. Background Technology

[0002] With the development of new energy vehicle technology, the performance of vehicle power batteries is constantly improving, which places higher demands on the assembly structure and heat exchange performance of vehicle power batteries. In existing vehicle power battery packs, the cold plate is usually connected to the tray by screws. The tray, which supports the cells, lacks coolant cooling, resulting in a lack of cooling at the ends of the cells where heat generation is most severe, which can easily lead to battery overheating. Summary of the Invention

[0003] One of the objectives of this invention is to provide a heat exchange device to solve the technical problem that the battery carrier cannot exchange heat in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A heat exchange device is provided, comprising: a first heat exchange section adapted to cover a first portion of a first surface of a battery; and a second heat exchange section adapted to cover a tray support section, the tray support section being used to support the battery and covering a second portion of the first surface of the battery. Wherein, the first surface of the battery is the surface on which the battery exchanges heat, the first portion of the first surface of the battery is the part of the battery surface that can be directly attached to the heat exchange device, and the second portion of the first surface of the battery is the part of the battery surface that is attached to the tray support section and used to load the battery.

[0005] Furthermore, the first heat exchange section includes a first cavity, and the second heat exchange section includes a second cavity. The first cavity and the second cavity are used to contain the heat exchange medium, and the first cavity and the second cavity are in communication. That is, the first cavity and the second cavity form a flow channel through which the heat exchange medium can flow.

[0006] Furthermore, the heat exchange device further includes: a cover plate, the cover plate including a first upper plane and a second upper plane; a bottom plate, the bottom plate including a first lower plane and a second lower plane; wherein, the cover plate and the bottom plate are stacked along a first direction, a first cavity is formed between the first upper plane and the first lower plane, and a second cavity is formed between the second upper plane and the second lower plane; the first direction is the thickness direction of the heat exchange device.

[0007] Furthermore, the first upper plane and the second upper plane are stepped, and the first lower plane and the second lower plane are stepped.

[0008] Furthermore, the second upper plane partially abuts against the first lower plane.

[0009] Furthermore, the base plate also includes a third lower plane, which is stepped with the first lower plane and abuts against the first upper plane.

[0010] Furthermore, the third lower plane extends along the second direction to divide the second cavity into multiple sub-cavities; the second direction is the length direction of the heat exchange device.

[0011] Furthermore, the third lower plane is spaced apart along a third direction to connect multiple sub-cavities; the third direction is the width direction of the heat exchange device.

[0012] Furthermore, the heat exchange device further includes a third heat exchange section adapted to cover a frame, the frame being used to limit the battery.

[0013] Furthermore, the third heat exchange section includes a third cavity for containing the heat exchange medium and is connected to the second cavity 301.

[0014] Furthermore, the cover plate also includes a third upper plane, and the bottom plate also includes a fourth lower plane; the third cavity is located between the third upper plane and the fourth lower plane.

[0015] Furthermore, the second lower plane abuts against the third upper plane at a distance from the fourth lower plane to form the third cavity.

[0016] Furthermore, the third upper plane is stepped with the second upper plane, and the fourth lower plane is stepped with the second lower plane.

[0017] Furthermore, an opening is provided on the third upper plane, and the opening communicates with the third cavity to form a liquid inlet and / or a liquid outlet.

[0018] Preferably, the joints where the second upper plane abuts against the first lower plane, the joints where the third lower plane abuts against the first upper plane, and the joints where the second lower plane abuts against the third upper plane are welded or bonded.

[0019] Preferably, one or more of the first upper plane, the second upper plane, the third upper plane, the first lower plane, the second lower plane, and the third lower plane are stamped surfaces.

[0020] Preferably, the dimensions of the first cavity, the second cavity, or the plurality of sub-cavities in the first direction are 2mm-5mm.

[0021] Preferably, the dimensions of the first cavity, the second cavity, or the plurality of the sub-cavities in the third direction are 8mm-30mm.

[0022] The beneficial effects of the heat exchange device provided by the embodiments of the present invention are as follows: Compared with the prior art, the heat exchange device provided by the embodiments of the present invention has a second heat exchange section, which is adapted to cover the tray support section. The tray support section is used to support the battery and cover a second part of the first surface of the battery, so that the battery can exchange heat with the heat exchange device through the second heat exchange section. By increasing the heat exchange area of ​​the battery, the heat exchange efficiency is improved, thereby improving the power performance of the battery.

[0023] The battery pack provided by the embodiments of the present invention includes a frame and the heat exchange device described above. The frame is used to place the battery, and the heat exchange device is adapted to exchange heat for the battery.

[0024] Furthermore, a tray support portion is provided at the bottom of the frame, the upper surface of the tray support portion is in contact with the battery, and the lower surface of the tray support portion is in contact with the second upper plane, so that the battery is suitable for exchanging heat with the heat exchanger through the tray support portion.

[0025] Furthermore, the frame is also provided with a border, which is used to limit the battery. The border is adapted to fit with the third heat exchange part of the heat exchange device and can enable the battery to indirectly exchange heat with the heat exchange device through the thermal conductivity of the border itself.

[0026] The beneficial effect of the battery pack provided by the present invention is that, compared with the prior art, the present invention provides a battery pack with higher heat dissipation efficiency.

[0027] The present invention also provides a vehicle comprising a battery and the aforementioned heat exchange device, or the aforementioned battery pack.

[0028] The beneficial effects of the vehicle provided by the present invention are as follows: compared with the prior art, the vehicle provided by the present invention uses the heat exchange device to exchange heat for the battery, thereby optimizing the power performance of the battery through more efficient heat exchange. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1This is a perspective view of a heat exchange device structure according to a specific embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of a cover plate according to a specific embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of a base plate according to a specific embodiment of the present invention;

[0033] Figure 4 This is a cross-sectional view of a battery pack structure according to a specific embodiment of the present invention;

[0034] Figure 5 This is a perspective view of a battery pack structure according to a specific embodiment of the present invention.

[0035] The reference numerals for each figure are as follows:

[0036] 100. Heat exchange device;

[0037] 1. Cover plate; 101. Third upper surface; 102. Second upper surface; 103. First upper surface; 104. Liquid inlet; 105. Liquid outlet;

[0038] 2. Base plate; 201. Second lower plane; 202. First lower plane; 203. Third lower plane; 204. Fourth lower plane;

[0039] 3. Flow channel; 301. Second cavity; 302. First cavity; 303. Third cavity; 304. Liquid outlet cavity;

[0040] 200. Frame; 21. Side border; 22. Pallet support. Detailed Implementation

[0041] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0042] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0043] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] The heat exchange device of a specific embodiment of the present invention will now be described.

[0046] refer to Figure 1 As shown, a heat exchange device 100 includes: a first heat exchange section adapted to cover a first portion of a first surface of a battery; and a second heat exchange section adapted to cover a tray support section, the tray support section being used to support the battery and covering a second portion of the first surface of the battery. The first surface of the battery is the surface on which the battery exchanges heat; the first portion of the first surface of the battery is the part of the battery surface that can be directly attached to the heat exchange device; and the second portion of the first surface of the battery is the part of the battery surface that is attached to the tray support section and used to load the battery. Compared with the prior art, the heat exchange device provided by this invention has a second heat exchange section adapted to cover the tray support section, the tray support section being used to support the battery and covering a second portion of the first surface of the battery, enabling the battery to exchange heat with the heat exchange device through the second heat exchange section, thereby improving heat exchange efficiency by increasing the heat exchange area of ​​the battery.

[0047] Furthermore, in some embodiments disclosed in this invention, the first heat exchange section includes a first cavity 302, and the second heat exchange section includes a second cavity 301. The first cavity 302 and the second cavity 301 are used to contain the heat exchange medium, and the first cavity 302 and the second cavity 301 are connected.

[0048] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, in some embodiments disclosed in this invention, the heat exchange device 100 includes: a cover plate 1, which includes a first upper plane 103 and a second upper plane 102; and a bottom plate 2, which includes a first lower plane 202 and a second lower plane 201. The cover plate 1 and the bottom plate 2 are stacked along a first direction, with a first cavity 302 between the first upper plane 103 and the first lower plane 202, and a second cavity 301 between the second upper plane 102 and the second lower plane 201. The first direction is the thickness direction of the heat exchange device 100. By providing the first upper plane 103 and the second upper plane 102 of the cover plate 1 and the first lower plane 202 and the second lower plane 201 of the bottom plate 2, the heat exchange device 100 is adapted to exchange heat with different regions of the object to be heated.

[0049] Furthermore, in some embodiments disclosed in this invention, the first upper plane 103 and the second upper plane 102 are stepped, and the first lower plane 202 and the second lower plane 201 are stepped. By setting the stepped planar layers, the heat exchange device is adapted to perform heat exchange for heat exchange areas with different heights.

[0050] Furthermore, in some embodiments disclosed in this invention, the second upper plane 102 partially abuts against the first lower plane 202.

[0051] Furthermore, in some embodiments disclosed in this invention, the base plate 2 further includes a third lower plane 203, which is stepped with the first lower plane 202, and the third lower plane 203 abuts against the first upper plane 103.

[0052] Furthermore, in some embodiments disclosed in this invention, the third lower plane 203 extends along a second direction to divide the second cavity 301 into multiple sub-cavities; the second direction is the length direction of the heat exchange device 100. By providing multiple sub-cavities, the flow path of the heat exchange medium is increased, enabling the heat exchange device 100 to exchange heat uniformly.

[0053] Furthermore, in some embodiments disclosed in this invention, the third lower plane 203 is spaced apart along a third direction to connect multiple sub-cavities; the third direction is the width direction of the heat exchange device 100.

[0054] Furthermore, in some embodiments disclosed in this invention, the heat exchange device 100 further includes a third heat exchange section adapted to cover the frame 21, which is used to limit the battery. By providing the third heat exchange section to cover the frame 21, the battery can indirectly exchange heat through the frame 21, increasing the heat exchange area and thus improving the heat exchange efficiency.

[0055] Furthermore, in some embodiments disclosed in this invention, the third heat exchange section includes a third cavity 303, which is used to contain the heat exchange medium and is in communication with the second cavity 301.

[0056] Furthermore, in some embodiments disclosed in this invention, the cover plate 1 further includes a third upper plane 101, and the bottom plate 2 further includes a fourth lower plane 204; a third cavity 303 is provided between the third upper plane 101 and the fourth lower plane 204.

[0057] Furthermore, in some embodiments disclosed in this invention, the second lower plane 201 abuts against the third upper plane 101 at a distance from the fourth lower plane 204 to form a third cavity 303.

[0058] Furthermore, in some embodiments disclosed in this invention, the third upper plane 101 and the second upper plane 102 are stepped, and the fourth lower plane 204 and the second lower plane 201 are stepped. By setting the stepped planar layers, the heat exchange device is suitable for heat exchange between areas to be heat exchanged with different heights.

[0059] Furthermore, in some embodiments disclosed in this invention, an opening is provided on the third upper plane 101, and the opening communicates with the third cavity 303 to form a liquid inlet 104 and / or a liquid outlet 105.

[0060] Preferably, in some embodiments disclosed in this invention, the abutment points of the second upper plane 102 and the first lower plane 202, the abutment points of the third lower plane 203 and the first upper plane 103, and the abutment points of the second lower plane 201 and the third upper plane 101 are welded or bonded.

[0061] Preferably, in some embodiments disclosed in this invention, one or more of the first upper plane 103, the second upper plane 102, the third upper plane 101, the first lower plane 202, the second lower plane 201, and the third lower plane 203 are stamping surfaces.

[0062] Preferably, in some embodiments disclosed in this invention, the dimensions of the first cavity 302, the second cavity 301, or multiple sub-cavities in the first direction are 2mm-5mm.

[0063] Preferably, in some embodiments disclosed in this invention, the dimensions of the first cavity 302, the second cavity 301, or multiple sub-cavities in the third direction are 8mm-30mm.

[0064] refer to Figure 5As shown, a battery pack disclosed in some embodiments of the present invention includes a frame 200 and a heat exchange device 100. The frame 200 is used to hold the battery, and the heat exchange device 100 is adapted to exchange heat with the battery. By providing the heat exchange device 100, multiple different functional areas of the battery can exchange heat with the heat exchange device 100, thereby improving the overall heat dissipation performance of the battery pack.

[0065] Furthermore, in some embodiments disclosed in this invention, a tray support portion 22 is provided at the bottom of the frame 200, the upper surface of the tray support portion 22 is in contact with the battery, and the lower surface of the tray support portion 22 is in contact with the second upper plane 102, so that the battery is suitable for exchanging heat with the heat exchanger through the tray support portion 22.

[0066] Some specific embodiments of the present invention disclose a vehicle including a battery, a heat exchange device 100, or the aforementioned battery pack. The vehicle provided by the present invention improves the heat exchange efficiency of the battery by using the heat exchange device to exchange heat for the battery, or by setting up the aforementioned battery pack, thereby optimizing the battery's power performance.

[0067] Although one or more specific embodiments of this disclosure have been shown and described, equivalent variations and modifications will occur to those skilled in the art upon reading and understanding this specification and the accompanying drawings. This disclosure includes all such modifications and variations and is limited only by the scope of the claims. In particular, with respect to the various functions performed by the components described above (e.g., elements, resources, etc.), unless otherwise indicated, the terminology used to describe such components is intended to correspond to any component (functionally equivalent) that performs the specific function of the described component, even if structurally not equivalent to the disclosed structure. Furthermore, although specific features of this disclosure may have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations, as may be desired and advantageous for any given or particular application. Moreover, with regard to the terms “comprising,” “owning,” “having,” “having,” or variations thereof as used in the specific embodiments or claims, such terms are intended to be inclusive in a manner similar to the term “including.”

[0068] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

[0069] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A heat exchange device (100), characterized in that, include: A first heat exchange section, the first heat exchange section being adapted to cover a first portion of the first surface of the battery; A second heat exchange section is adapted to cover a tray support section, the tray support section being used to support the battery and covering a second portion of the first surface of the battery.

2. The heat exchange device (100) according to claim 1, characterized in that, The first heat exchange section includes a first cavity (302), and the second heat exchange section includes a second cavity (301). The first cavity (302) and the second cavity (301) are used to contain the heat exchange medium, and the first cavity (302) and the second cavity (301) are connected.

3. The heat exchange device (100) according to claim 2, characterized in that, include: Cover plate (1), the cover plate (1) includes a first upper surface (103) and a second upper surface (102); The base plate (2) includes a first lower plane (202) and a second lower plane (201); The cover plate (1) and the bottom plate (2) are stacked along a first direction, and a first cavity (302) is provided between the first upper plane (103) and the first lower plane (202), and a second cavity (301) is provided between the second upper plane (102) and the second lower plane (201); the first direction is the thickness direction of the heat exchange device (100).

4. The heat exchange device (100) according to claim 3, characterized in that, The first upper plane (103) and the second upper plane (102) are stepped, and the first lower plane (202) and the second lower plane (201) are stepped.

5. The heat exchange device (100) according to claim 4, characterized in that, The second upper plane (102) partially abuts against the first lower plane (202).

6. The heat exchange device (100) according to claim 5, characterized in that, The base plate (2) further includes a third lower plane (203), which is stepped with the first lower plane (202) and abuts against the first upper plane (103).

7. The heat exchange device (100) according to claim 6, characterized in that, The third lower plane (203) extends along a second direction to divide the second cavity (301) into multiple sub-cavities; the second direction is the length direction of the heat exchange device (100).

8. The heat exchange device (100) according to claim 7, characterized in that, The third lower plane (203) is spaced apart along a third direction to connect multiple sub-cavities; the third direction is the width direction of the heat exchange device (100).

9. The heat exchange device (100) according to claim 6, characterized in that, Also includes: A third heat exchange section is adapted to cover a frame (21) for limiting the battery.

10. The heat exchange device (100) according to claim 9, characterized in that, The third heat exchange section includes a third cavity (303) for containing the heat exchange medium and is in communication with the second cavity (301).

11. The heat exchange device (100) according to claim 10, characterized in that, The cover plate (1) further includes a third upper plane (101), and the bottom plate (2) further includes a fourth lower plane (204); The third cavity (303) is located between the third upper plane (101) and the fourth lower plane (204).

12. The heat exchange device (100) according to claim 11, characterized in that, The second lower plane (201) abuts against the third upper plane (101) at a distance from the fourth lower plane (204) to form the third cavity (303).

13. The heat exchange device (100) according to claim 11, characterized in that, The third upper plane (101) is stepped with the second upper plane (102), and the fourth lower plane (204) is stepped with the second lower plane (201).

14. The heat exchange device (100) according to claim 12, characterized in that, An opening is provided on the third upper plane (101), and the opening communicates with the third cavity (303) to form a liquid inlet (104) and / or a liquid outlet (105).

15. The heat exchange device (100) according to claim 11, characterized in that, The points where the second upper plane (102) abuts against the first lower plane (202), the points where the third lower plane (203) abuts against the first upper plane (103), and the points where the second lower plane (201) abuts against the third upper plane (101) are welded or bonded.

16. The heat exchange device (100) according to claim 11, characterized in that, One or more of the first upper plane (103), the second upper plane (102), the third upper plane (101), the first lower plane (202), the second lower plane (201), and the third lower plane (203) are stamping surfaces.

17. The heat exchange device (100) according to claim 8, characterized in that, The dimensions of the first cavity (302), the second cavity (301), or the plurality of the sub-cavities in the first direction are 2mm-5mm.

18. The heat exchange device (100) according to claim 8, characterized in that, The dimensions of the first cavity (302), the second cavity (301), or the plurality of the sub-cavities in the third direction are 8mm-30mm.

19. A battery pack, characterized in that, The device includes a frame (200) and a heat exchange device (100) as claimed in any one of claims 3-18, the frame (200) being used to hold a battery and the heat exchange device (100) being adapted to exchange heat for the battery.

20. The battery pack according to claim 19, characterized in that, The bottom of the frame (200) is provided with a tray support part (22), the upper surface of the tray support part (22) is in contact with the battery, and the lower surface of the tray support part (22) is in contact with the second upper plane (102), so that the battery is suitable for exchanging heat with the heat exchanger through the tray support part (22).

21. A vehicle, characterized in that, The vehicle includes a battery, a heat exchange device (100) as described in any one of claims 1-18, or a battery pack as described in any one of claims 19-20.

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