Cooling plate, battery and electric device

Abstract

The utility model relates to a cooling plate, battery and power utilization device, the cooling plate comprises a cooling cover plate, a runner plate and a reinforcing plate, a stamping groove is formed on one side of the runner plate, a convex rib is correspondingly formed on the other side of the runner plate at the position corresponding to the stamping groove, and the cooling cover plate is covered on one side of the runner plate, which is provided with the stamping groove, and is matched with the stamping groove to form a cooling runner. The reinforcing plate is attached to the side, where the convex ribs are formed, of the runner plate and avoids the convex ribs. And the battery cell modules on the two sides of the cooling plate can apply pressure to the cooling plate in the using process. The reinforcing plates can play a role in supporting and limiting, and when the cooling plate is extruded, the reinforcing plates can be in contact with the battery cell modules on the two sides, so that the convex ribs are prevented from being sunken inwards due to excessive extrusion, and the damage to the cooling runner is avoided. Therefore, the anti-pressure capability of the cooling plate is obviously enhanced, so that the reliability of the cooling plate, the battery and the electric device is obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy, and in particular to a cooling plate, a battery and an electrical device. Background Art

[0002] With the development of new energy vehicles, battery supercharging technology has also been widely used. Supercharging has high power and generates heat quickly, which causes the battery to heat up quickly. Temperature has a great influence on the performance of lithium-ion batteries. In order to improve the heat dissipation performance of the battery, the batteries of new energy vehicles are generally cooled by liquid cooling. Moreover, due to the limited performance of single-sided cooling, multi-sided cooling is generally introduced. For cooling plates arranged in special-shaped areas, aluminum is usually stamped and brazed. However, the compression and tensile strength of stamped cooling plates are weak, and the reliability is poor. Utility Model Content

[0003] Based on this, it is necessary to provide a cooling plate, a battery and an electrical device that can improve reliability in order to address the above problems.

[0004] A cooling plate comprises a cooling cover plate, a flow channel plate and a reinforcing plate, wherein a stamping groove is stamped on one side of the flow channel plate, and a convex rib is formed at a position corresponding to the stamping groove on the other side, the cooling cover plate is covered on the side of the flow channel plate where the stamping groove is formed, and cooperates with the stamping groove to form a cooling flow channel, and the reinforcing plate is attached to the side of the flow channel plate where the convex rib is formed and forms a avoidance position for the convex rib.

[0005] In one embodiment, the cooling cover plate and the flow channel plate are both aluminum plates.

[0006] In one embodiment, the cooling cover plate is welded to the flow channel plate by brazing.

[0007] In one of the embodiments, the stamping area where the stamping groove is located is located in the middle of the flow channel plate, and the welding area between the cooling cover plate and the flow channel plate is arranged along the circumference of the stamping area.

[0008] In one embodiment, the thickness of the reinforcing plate is not less than the height of the rib.

[0009] In one of the embodiments, the stamping area where the rib is located is located in the middle of the flow channel plate, and the reinforcing plate is annular and extends along the circumference of the stamping area.

[0010] In one embodiment, the cooling plate is provided with riveting holes penetrating the cooling cover plate, the flow channel plate and the reinforcing plate.

[0011] In one embodiment, the reinforcing plate is bonded to the surface of the flow channel plate.

[0012] A battery comprising:

[0013] A plurality of cooling plates as described in any one of the above preferred embodiments, wherein the plurality of cooling plates are arranged at intervals and a receiving space is formed between two adjacent cooling plates; and

[0014] The battery core module is arranged in the receiving space and contacts the cooling plate.

[0015] An electrical device comprises the battery as described in the above preferred embodiment.

[0016] The above-mentioned cooling plate, battery and electrical device, and the battery modules on both sides of the cooling plate will exert pressure on the cooling plate during use. The reinforcing plate can play a supporting and limiting role. When the cooling plate is squeezed, the reinforcing plate can contact the battery modules on both sides, thereby preventing the ribs from sinking inward due to excessive squeezing and causing damage to the cooling channel. It can be seen that the pressure resistance of the cooling plate is significantly enhanced, so the reliability of the above-mentioned cooling plate, battery and electrical device will also be significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be 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 paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of a battery in a preferred embodiment of the utility model;

[0019] Figure 2 for Figure 1 An exploded view of the battery shown;

[0020] Figure 3 for Figure 1 a cross-sectional view of the battery shown;

[0021] Figure 4 for Figure 3 An enlarged schematic diagram of a local area A in the battery shown;

[0022] Figure 5 for Figure 4 Schematic diagram of the structure of the reinforcement plate in the cooling plate shown. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0024] In the description of the present invention, 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 invention 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 invention.

[0025] 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 the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In the present invention, 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 the present invention can be understood according to specific circumstances.

[0027] In the present utility model, 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" or "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" or "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.

[0028] 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.

[0029] The utility model discloses an electric device and a battery, wherein the electric device comprises the battery and can be provided with electric energy by the battery. The battery can be used alone or multiple batteries can be connected in parallel, in series or in combination of parallel and series to form a larger battery pack for use.

[0030] The above-mentioned electrical devices can be vehicles, ships, spacecraft, electric toys, electric tools, energy storage equipment, amusement equipment, elevators and lifting equipment, etc. Vehicles can be fuel vehicles, gas vehicles or new energy vehicles. New energy vehicles can be pure electric vehicles, hybrid vehicles or extended-range vehicles, etc.; spacecraft include airplanes, rockets, space shuttles and spacecrafts, etc.; electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys or electric airplane toys, etc.; electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators and electric planers, etc.; energy storage equipment can be energy storage walls, base station energy storage, container energy storage, etc.; amusement equipment can be carousels, jumping machines, etc. This application does not impose special restrictions on the above-mentioned electrical devices. For new energy vehicles, the above-mentioned batteries can be used as a driving power source to replace fossil fuels to provide driving power.

[0031] See also Figure 1 and Figure 2 The battery 10 in the preferred embodiment of the present invention includes a plurality of cooling plates 100 and at least one battery cell module 200 .

[0032] A cooling channel (not shown) is formed in the cooling plate 100 for the coolant to flow through. The cooling plate 100 is generally in the shape of an elongated strip, which is consistent with the extension direction of the battery module 200. The battery module 200 includes a plurality of battery cells, i.e., battery cells. The battery cells in this embodiment are in the shape of a rectangular parallelepiped, i.e., a square shell battery. A plurality of rectangular parallelepiped battery cells are arranged in parallel to form a rectangular parallelepiped battery module 200.

[0033] A plurality of cooling plates 100 are arranged at intervals, and a receiving space is formed between two adjacent cooling plates 100. For example, three cooling plates 100 are arranged in the present embodiment, so two receiving spaces are formed. The battery cell module 200 is arranged in the receiving space and contacts the cooling plates 100. It can be seen that cooling plates 100 are arranged on both sides of each battery cell module 200, so that the battery cell module 200 can be cooled from both sides, so the cooling effect on the battery cell module 200 is better.

[0034] In addition, the battery 10 may also include a cooling base plate (not shown), and the battery cell module 200 is carried on the cooling base plate. The cooling base plate may adopt the same structure as the cooling plate 100, and only the shape is adaptively adjusted. In this way, the cooling plate 100 cooperates with the cooling base plate to increase the cooling surface, thereby further improving the cooling effect on the battery cell module 200.

[0035] Please also read Figure 3 and Figure 4 The cooling plate 100 in the preferred embodiment of the present invention includes a cooling cover plate 110 , a flow channel plate 120 and a reinforcing plate 130 .

[0036] The cooling cover plate 110 and the flow channel plate 120 are of roughly the same shape and are both metal plates. Specifically, in this embodiment, the cooling cover plate 110 and the flow channel plate 120 are both aluminum plates. The aluminum plate is soft in texture, so it is convenient to form cooling channels by stamping.

[0037] A stamping groove 121 is formed by stamping on one side of the flow channel plate 120, and a convex rib 122 is formed at a position corresponding to the stamping groove 121 on the other side. The stamping groove 121 and the convex rib 122 are formed simultaneously by stamping, and the stamping groove 121 is formed on the concave side of the flow channel plate 120, and the convex rib 122 is formed on the convex side. The stamping groove 121 can be in an S-shape, a U-shape, or the like.

[0038] The cooling cover plate 110 is covered on one side of the flow channel plate 120 where the stamping groove 121 is formed, and cooperates with the stamping groove 121 to form a cooling flow channel (not shown). The cooling cover plate 110 can cover the stamping groove 121, thereby closing the stamping groove 121 to form a cooling flow channel. The coolant can flow in the cooling flow channel to achieve cooling. Specifically in this embodiment, the cooling cover plate 110 is welded to the flow channel plate 120 by brazing. In this way, the cooling cover plate 110 is more firmly connected to the flow channel plate 120, and no additional operations such as drilling are required.

[0039] In this embodiment, the stamping area where the stamping groove 121 is located is located in the middle of the flow channel plate 120, and the welding area between the cooling cover plate 110 and the flow channel plate 120 is arranged along the circumference of the stamping area. The stamping area is located in the middle, so the formed cooling flow channel will be located in the middle of the cooling plate 100. Moreover, the welding area is arranged along the stamping area, that is, the circumference of the cooling flow channel, which can ensure the sealing of the cooling flow channel.

[0040] Please also read Figure 5 The reinforcing plate 130 is attached to the side of the flow channel plate 120 where the convex rib 122 is formed and forms a clearance for the convex rib 122. Specifically, the reinforcing plate 130 may be provided with a hollow portion 131, and the convex rib 122 is located within the hollow portion 131. Alternatively, the reinforcing plate 130 may also be a separate plate-like structure, including a plurality of independent sub-plates (not shown), and the plurality of sub-plates are distributed in the gaps between the convex ribs 122. The reinforcing plate 130 may be connected to the flow channel plate 120 by bonding, welding, or the like.

[0041] Specifically in this embodiment, the reinforcing plate 130 is bonded to the surface of the flow channel plate 120. The bonding method does not significantly increase the thickness of the cooling plate 100, which is conducive to improving space utilization. Moreover, the bonding method is simpler than the welding process.

[0042] The reinforcing plate 130 can play a supporting and limiting role. When the cooling plate 100 is squeezed, the reinforcing plate 130 can contact the battery modules 200 on both sides, thereby preventing the ribs 122 from being sunken inward due to excessive squeezing and causing damage to the cooling channel.

[0043] In this embodiment, the thickness of the reinforcing plate 130 is not less than the height of the rib 122. In other words, the surface of the reinforcing plate 130 can be flush with or slightly higher than the top of the rib 122. In this way, the reinforcing plate 130 has a better protective effect on the rib 122.

[0044] Correspondingly, the convex ribs 122 are also distributed in the stamping area. Moreover, the reinforcing plate 130 in this embodiment is annular and extends along the circumference of the stamping area. A hollow portion 131 is formed in the middle of the reinforcing plate 130, and the convex ribs 122 are located in the hollow portion 131. Since the annular reinforcing plate 130 can provide uniform support, and the convex ribs 122 are located within the range of the reinforcing plate 130. Therefore, the protective effect of the reinforcing plate 130 on the convex ribs 122 is further improved.

[0045] In this embodiment, the cooling plate 100 is provided with a rivet hole 101 penetrating the cooling cover plate 110, the flow channel plate 120 and the reinforcing plate 130. The rivet hole 101 facilitates the riveting of the cooling plate 100 with the end plate and other structures, thereby facilitating installation. It should be noted that the rivet hole 101 is arranged away from the cooling flow channel.

[0046] The cooling plate 100, battery 10 and electrical device, and the battery modules 200 on both sides of the cooling plate 100 will exert pressure on the cooling plate 100 during use. The reinforcing plate 130 can play a supporting and limiting role. When the cooling plate 100 is squeezed, the reinforcing plate 130 can contact the battery modules 200 on both sides, thereby preventing the ribs 122 from being sunken inward due to excessive squeezing and causing damage to the cooling channel. It can be seen that the pressure resistance of the cooling plate 100 is significantly enhanced, so the reliability of the cooling plate 100, battery 10 and electrical device will also be significantly improved.

[0047] 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.

[0048] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A cooling plate, characterized in that: It includes a cooling cover plate, a flow channel plate and a reinforcing plate. A stamping groove is stamped on one side of the flow channel plate, and a convex rib is formed at a position corresponding to the stamping groove on the other side. The cooling cover plate is covered on the side of the flow channel plate where the stamping groove is formed, and cooperates with the stamping groove to form a cooling flow channel. The reinforcing plate is attached to the side of the flow channel plate where the convex rib is formed and forms a avoidance for the convex rib.

2. The cooling plate according to claim 1, characterized in that The cooling cover plate and the flow channel plate are both aluminum plates.

3. The cooling plate according to claim 1, characterized in that The cooling cover plate is welded to the flow channel plate by brazing.

4. The cooling plate according to claim 3, characterized in that The stamping area where the stamping groove is located is located in the middle of the flow channel plate, and the welding area between the cooling cover plate and the flow channel plate is arranged along the circumference of the stamping area.

5. The cooling plate according to claim 1, characterized in that The thickness of the reinforcing plate is not less than the height of the rib.

6. The cooling plate according to claim 1, characterized in that The stamping area where the convex rib is located is located in the middle of the flow channel plate, and the reinforcing plate is annular and extends along the circumference of the stamping area.

7. The cooling plate according to claim 1, characterized in that The cooling plate is provided with riveting holes penetrating the cooling cover plate, the flow channel plate and the reinforcing plate.

8. The cooling plate according to claim 1, characterized in that The reinforcing plate is bonded to the surface of the flow channel plate.

9. A battery, characterized in that: include: A plurality of cooling plates according to any one of claims 1 to 8, wherein the plurality of cooling plates are arranged at intervals and a receiving space is formed between two adjacent cooling plates; and The battery core module is arranged in the receiving space and contacts the cooling plate.

10. An electrical device, characterized in that: Comprising the battery as claimed in claim 9 above.

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