Heat dissipation plate for new energy automobile battery

Abstract

The utility model discloses a new energy automobile battery heat sink, including cooling plate and fixed in the convex hull of cooling plate inner side, the cooling plate includes the main plate body, the upper end face of main plate body concaves to form the edge cooling flow channel, the convex hull includes the lower concave plate, the upper end face of lower concave plate concaves to form the inner cooling flow channel, the lower concave plate concaves to form the inner cooling flow channel, and the lower concave plate concaves to form the inner cooling flow channel. The inner cooling flow channel comprises a center heat conduction flow channel, the center heat conduction flow channel is distributed in the center of the lower concave plate in a long strip shape, and edge dispersion flow channels, thick flow channels, middle flow channels and thin flow channels are sequentially arranged on the two sides of the center heat conduction flow channel; and the edge dispersion flow channels, the thick flow channels, the middle flow channels and the thin flow channels on the two sides of the central heat conduction flow channel are symmetrically arranged. According to the heat dissipation plate for the new energy automobile battery, heat is rapidly conducted from the center to the periphery, heat of a main heating area in the center of the new energy automobile battery is rapidly discharged, heat accumulation in the center of the battery is avoided, and the probability of battery swelling is reduced.

Description

Technical Field

[0001] This utility model relates to a battery heat sink, specifically a heat sink for new energy vehicle batteries. Background Technology

[0002] A heat sink for a new energy vehicle battery is a component used to help dissipate heat in a new energy vehicle battery system. Its main function is to quickly dissipate the heat generated by the battery during operation through various heat dissipation mechanisms, prevent the battery from overheating, thereby extending the battery's lifespan and ensuring the safe operation of the battery system.

[0003] Existing heat dissipation designs for new energy vehicle batteries typically involve placing inlet and outlet ports at the edges. Coolant enters through the inlet, bends across the plate, and distributes its cooling effect throughout before exiting through the outlet, thus dissipating heat. However, during battery operation, the primary heat-generating area is located in the center. Existing heat conduction methods cause the coolant to flow first in the less heat-generating edges, resulting in low heat absorption efficiency and a prolonged cooling time. Furthermore, existing designs lead to a significant accumulation of heat in the battery's center, causing heat buildup. Utility Model Content

[0004] The purpose of this invention is to provide a heat dissipation plate for new energy vehicle batteries, which transfers the heat released from the center of the battery to the coolant in the central heat-conducting channel, and then conducts it to the edge dispersion channels, coarse channels, medium channels and fine channels on both sides, so that the heat is conducted from the center to the surrounding area, and the heat of the main heat-generating area in the center of the new energy vehicle battery is quickly discharged, avoiding heat accumulation in the center of the battery and reducing the probability of battery bulging.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat dissipation plate for a new energy vehicle battery, comprising a cooling plate and a protrusion fixed to the inner side of the cooling plate. The cooling plate includes a main body, with an edge cooling channel recessed on the upper end surface of the main body. The protrusion includes a lower concave plate, with an inner cooling channel recessed on the upper end surface of the lower concave plate. The inner cooling channel includes a central heat-conducting channel, which is elongated and distributed at the center of the lower concave plate. On both sides of the central heat-conducting channel, an edge dispersion channel, a coarse channel, a medium channel, and a fine channel are sequentially arranged. The edge dispersion channel, coarse channel, medium channel, and fine channel on both sides of the central heat-conducting channel are symmetrically arranged.

[0006] Preferably, the edge cooling channel surrounds the perimeter of the concave plate, and the edge cooling channel is simultaneously connected to the edge dispersion channel, the coarse channel, the medium channel and the fine channel.

[0007] Preferably, there are two central heat conduction channels, which are parallel to each other and connected to each other; the two central heat conduction channels are respectively used to communicate with the edge dispersion channels, coarse channels, medium channels and fine channels on both sides.

[0008] Preferably, the width of the edge dispersion channel is equal to the width of the coarse channel, the width of the middle channel is less than the width of the coarse channel, and the width of the fine channel is less than the width of the middle channel.

[0009] Preferably, the depth of the edge cooling channel is equal to the depth of the inner cooling channel, and the value is between 0.5 mm and 2 mm.

[0010] Preferably, the cross-sections of the edge dispersion channel, the coarse channel, the middle channel, and the fine channel are all U-shaped, and each of the edge dispersion channel, the coarse channel, the middle channel, and the fine channel is composed of several straight sections and several curved sections, and the straight sections and the curved sections are connected.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model first transfers the heat released from the central part of the new energy vehicle battery to the coolant in the central heat-conducting channel, and then conducts it to the edge dispersion channels, coarse channels, medium channels and fine channels on both sides. The heat is conducted from the center to the surrounding area, so that the heat of the main heat-generating area in the central part of the new energy vehicle battery can be quickly discharged, which helps to reduce the temperature of the central part of the new energy vehicle battery and extend its life.

[0013] 2. In this invention, heat is released from the central part of the new energy vehicle battery to the central heat conduction channel, and then diffuses to the edge dispersion channels, coarse channels, medium channels and fine channels on both sides. This allows the heat in the main heat-generating area to quickly dissipate to the surroundings, accelerating the heat outflow from the central part of the new energy vehicle battery. Finally, all the heat is gathered in the edge cooling channels, achieving a uniform heat distribution effect, improving the heat dissipation effect, avoiding heat accumulation in the central part of the battery, and reducing the probability of battery bulging. Attached Figure Description

[0014] Figure 1 This is the front view of the present utility model;

[0015] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0016] Figure 3 This is a top view of the present invention.

[0017] The reference numerals and names in the figure are as follows: 1. Cooling plate; 11. Main body; 12. Edge cooling channel; 2. Convex bulge; 21. Lower concave plate; 22. Inner cooling channel; 221. Central heat conduction channel; 222. Edge dispersion channel; 223. Coarse channel; 224. Medium channel; 225. Fine channel. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. 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 indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0020] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0021] Please see Figure 1 One embodiment of this utility model is a heat sink for a new energy vehicle battery, which includes a cooling plate 1 and a protrusion 2 fixed to the inner side of the cooling plate 1. The thickness of the cooling plate 1 is between 2 mm and 3.5 mm, and the thickness of the protrusion 2 is between 4 mm and 6 mm.

[0022] Please see Figure 2 The cooling plate 1 includes a main body 11, and an edge cooling channel 12 is recessed on the upper end surface of the main body 11. The protrusion 2 includes a lower concave plate 21, and the edge cooling channel 12 surrounds the lower concave plate 21 in the circumferential direction. An inner cooling channel 22 is recessed on the upper end surface of the lower concave plate 21. The depth of the edge cooling channel 12 and the depth of the inner cooling channel 22 are equal, and the value is between 0.5 mm and 2 mm. The inner cooling channel 22 is made by etching process.

[0023] Please see Figure 3 The inner cooling channel 22 includes two parallel central heat-conducting channels 221, which are connected. The central heat-conducting channels 221 are elongated and distributed at the center of the concave plate 21. On both sides of the central heat-conducting channels 221, edge dispersion channels 222, coarse channels 223, medium channels 224, and fine channels 225 are arranged in sequence. The edge cooling channel 12 is connected to the edge dispersion channels 222 and coarse channels 223. The middle flow channel 224 and the narrow flow channel 225 are connected. Two central heat-conducting flow channels 221 are respectively connected to the edge dispersion channels 222, coarse flow channels 223, middle flow channels 224, and narrow flow channels 225 on either side of the central heat-conducting flow channel 221. The edge dispersion channels 222, coarse flow channels 223, middle flow channels 224, and narrow flow channels 225 on both sides of the central heat-conducting flow channel 221 are symmetrically arranged. The width of the edge dispersion channel 222 is equal to the width of the coarse flow channel 223. The width of the middle flow channel... The width of channel 224 is smaller than that of the coarse flow channel 223, and the width of channel 225 is smaller than that of the medium flow channel 224. The heat from the center of the new energy vehicle battery is quickly absorbed through the two central heat-conducting channels 221, and the heat is quickly dissipated through the edge dispersion channels 222, coarse flow channel 223, medium flow channel 224 and fine flow channel 225 on both sides. At the same time, the heat from the edge of the new energy vehicle battery is carried away, achieving a uniform heat distribution effect and avoiding heat accumulation in the center of the battery. Therefore, the probability of battery bulging can be reduced, and the battery life can be extended. In addition, the cross-sections of the edge dispersion channels 222, coarse flow channel 223, medium flow channel 224 and fine flow channel 225 are all U-shaped, and the edge dispersion channels 222, coarse flow channel 223, medium flow channel 224 and fine flow channel 225 are all composed of several straight sections and several curved sections, and the straight sections and curved sections are connected.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A heat dissipation plate for a new energy vehicle battery, comprising a cooling plate (1) and a protrusion (2) fixed to the inner side of the cooling plate (1), characterized in that: The cooling plate (1) includes a main body (11), and the upper end face of the main body (11) is recessed to form an edge cooling channel (12). The convex bulge (2) includes a lower concave plate (21), and the upper end face of the lower concave plate (21) is recessed to form an inner cooling channel (22). The inner cooling channel (22) includes a central heat-conducting channel (221), and the central heat-conducting channel (221) is elongated and distributed at the center of the lower concave plate (21). On both sides of the central heat-conducting channel (221), an edge dispersion channel (222), a coarse channel (223), a medium channel (224), and a fine channel (225) are arranged in sequence.

2. The heat sink for a new energy vehicle battery according to claim 1, characterized in that: The edge cooling channel (12) surrounds the circumference of the concave plate (21), and the edge cooling channel (12) is simultaneously connected to the edge dispersion channel (222), the coarse channel (223), the medium channel (224) and the fine channel (225).

3. A heat sink for a new energy vehicle battery according to claim 1, characterized in that: There are two central heat conduction channels (221), and the two central heat conduction channels (221) are parallel to each other and connected to each other.

4. A heat sink for a new energy vehicle battery according to claim 1, characterized in that: The width of the edge dispersion channel (222) is equal to the width of the coarse channel (223), the width of the middle channel (224) is less than the width of the coarse channel (223), and the width of the fine channel (225) is less than the width of the middle channel (224).

5. A heat sink for a new energy vehicle battery according to claim 1, characterized in that: The depth of the edge cooling channel (12) is equal to the depth of the inner cooling channel (22), and the value is between 0.5 mm and 2 mm.

6. A heat sink for a new energy vehicle battery according to claim 1, characterized in that: The cross-sections of the edge dispersion channel (222), coarse channel (223), medium channel (224) and fine channel (225) are all U-shaped, and each of the edge dispersion channel (222), coarse channel (223), medium channel (224) and fine channel (225) is composed of several straight sections and several curved sections.

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