A new energy vehicle battery pack cold plate

Abstract

The utility model relates to the technical field of battery pack cold plates, and in particular to a new energy vehicle battery pack cold plate. Its technical solution includes a cold plate body, wherein the cold plate body is provided with an inner groove, and the outer wall of the side of the cold plate body is provided with a flange, and the inner wall of the side of the cold plate body is provided with an inner arc surface 1 and an inner arc surface 2, and the inner arc surface 1 and the inner arc surface 2 are respectively located on the inner walls of the two sides of the cold plate body, and a special-shaped hole is provided inside one end of the cold plate body, and the angle of the inner arc surface 1 is 108°, and the angle of the inner arc surface 2 is 115°. The utility model forms a flow channel on the side of the battery pack through the cooperation between the inner arc surface 1, the inner arc surface 2 and the inner groove structure. The utility model has the function of rapid heat conduction, and at the same time, through the outer arc surface, it reduces impact wear, and solves the problems of uneven heat dissipation and fragility of the cold plate.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack cold plates, in particular to a new energy vehicle battery pack cold plate. Background Art

[0002] The cold plate of the new energy vehicle battery pack is an important component for managing battery temperature. The cold plate helps to dissipate or absorb heat in a high temperature environment and keep the internal temperature of the battery pack within an appropriate range, which helps to improve the efficiency and life of the battery.

[0003] However, in the existing cold plate design, the inner wall is completely in contact with the battery pack, which leads to excessive local heat and uneven heat dissipation. Therefore, we propose a new energy vehicle battery pack cold plate to solve the existing problems. Utility Model Content

[0004] The purpose of the utility model is to provide a new energy vehicle battery pack cold plate in view of the problems existing in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new energy vehicle battery pack cold plate, including a cold plate body, the cold plate body is provided with an inner groove inside, the side outer walls of the cold plate body are provided with flanges, the side inner walls of the cold plate body are provided with inner arc surface one and inner arc surface two, the inner arc surface one and inner arc surface two are respectively located on the inner walls on both sides of the cold plate body, a special-shaped hole is provided inside one end of the cold plate body, the angle of the inner arc surface one is 108°, and the angle of the inner arc surface two is 115°.

[0006] Preferably, the outer wall of the cold plate body is provided with an outer arc surface, and the two ends of the outer arc surface are inclined to transition with the flange and the inner groove. The outer arc surface is a transition surface with the flange and the outer side of the inner cavity, which plays a role of strengthening support when squeezed, and plays a role of guiding when hard objects impact, thereby reducing the impact wear of the hard objects on the outer wall of the cold plate body.

[0007] Preferably, the thickness of the cold plate body is 9 mm. The cold plate body is thinner, and the heat conduction performance is improved.

[0008] Preferably, the flange is annularly wrapped around the outside of the side of the cold plate body, the flange thickness is 5mm, and the inner wall of the flange is provided with a glue scale groove in the shape of an annular track, and the glue scale groove is a double-track intermittent line segment. The thickness of the flange is conducive to stamping, and the glue scale groove plays a guiding role when the glue is applied before the flange is butted.

[0009] Preferably, mounting holes are provided inside the flange, the mounting holes are equidistantly distributed inside the flange, and the hole radius of the mounting holes is 6 mm. The mounting holes are used for rotating and plugging screws of matching specifications, and the screws are equidistant from the fixing points of the flange, and the fixing is comprehensive.

[0010] Preferably, an inner angle is provided at the connection between the flange and the cold plate body, and the inner angle is 286°.

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

[0012] 1. The angle between the cold plate body and the inner arc surface 1 of the utility model is 108°, and the angle between the inner arc surface 2 is 115°. When the angle between the inner arc surface 1, the inner arc surface 2 and the inner groove is designed to cover the battery, a flow channel is formed at the inclined surface, and the flow channel forms an internal circulation. The internal heat can be quickly conducted to the cold plate body, avoiding the problem of poor heat dissipation effect caused by local high temperature and local low temperature. The overall cold plate evenly dissipates heat for the battery pack, improves the heat dissipation performance, and thus improves the working efficiency of the battery assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the main view of the utility model;

[0014] Figure 2 For the utility model Figure 1 Lateral section at the middle BB;

[0015] Figure 3 For the utility model Figure 1 Lateral section at mid-AA;

[0016] Figure 4 It is a top sectional view of the utility model.

[0017] Figure numerals: 1, cold plate; 2, flange; 3, special-shaped hole; 4, glue-coated scale groove; 5, inner groove; 6, mounting hole; 7, inner arc surface one; 8, outer arc surface; 9, inner arc surface two; 10, inner angle. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1-Figure 4As shown, the utility model proposes a new energy vehicle battery pack cold plate, including a cold plate body 1, the cold plate body 1 is provided with an inner groove 5, the side outer wall of the cold plate body 1 is provided with a flange 2, the side inner wall of the cold plate body 1 is provided with an inner arc surface 1 7 and an inner arc surface 2 9, the inner arc surface 1 7 and the inner arc surface 2 9 are respectively located on the inner walls of both sides of the cold plate body 1, and a special-shaped hole 3 is provided inside one end of the cold plate body 1, the angle of the inner arc surface 1 7 is 108°, and the angle of the inner arc surface 2 9 is 115°;

[0020] The outer wall of the cold plate body 1 is provided with an outer arc surface 8, and the two ends of the outer arc surface 8 are inclined to the flange 2 and the inner groove 5;

[0021] The thickness of the cold plate body 1 is 9 mm;

[0022] The flange 2 is annularly wrapped around the outer side of the cold plate body 1, the thickness of the flange 2 is 5 mm, and the inner wall of the flange 2 is provided with a glue-coated scale groove 4 in the shape of an annular track, and the glue-coated scale groove 4 is a double-track intermittent line segment;

[0023] The flange 2 is provided with mounting holes 6, which are evenly distributed inside the flange 2, and the hole radius of the mounting holes 6 is 6 mm;

[0024] An inner angle 10 is provided at the connection between the flange 2 and the cold plate body 1, and the angle of the inner angle 10 is 286°.

[0025] Implementation steps based on Example 1: When the cold plate body 1 is docked, the battery pack is placed in the inner groove 5, and glue is applied through the glue scale line. The guiding position of the glue application helps to accurately control the positioning and bonding process of the glue application in the manufacturing process, improve the accuracy of the process, and reduce waste in production. Then the flange 2 is docked with the fixed structure, and after the mounting holes 6 are aligned, the corresponding screws are rotated and inserted into the mounting holes 6 to fix the flange 2. The design of the outer arc surface 8 not only increases the support when squeezed, but also plays a guiding role when hard objects impact, which helps to reduce the impact wear of the outer wall of the cold plate body 1. This design can improve the durability of the cold plate body 1 and reduce damage caused by friction during long-term use. The special-shaped hole 3 can help the cold plate body 1 to connect with other components;

[0026] In addition, the special-shaped hole 3 also helps to reduce the weight of the structure and may be used to reduce material costs in the design. In addition to being conducive to stamping, the thickness of the flange 2 reduces the weight of the entire cold plate body 1. At the same time, a flow channel is formed at the connection between the inner arc surface 1 7 and the inner arc surface 2 9 and the inner groove 5. The heat inside the inner groove 5 can be quickly conducted to various areas through the flow channel, so that the temperature inside the battery pack is uniform, which is convenient for heat dissipation of the battery pack, increases the durability of the cold plate body 1, and improves the practicality of the cold plate body 1 when in use.

[0027] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A new energy vehicle battery pack cold plate, comprising a cold plate body (1), characterized in that: The cold plate body (1) is provided with an inner groove (5) inside, the side outer wall of the cold plate body (1) is provided with a flange (2), the side inner wall of the cold plate body (1) is provided with an inner arc surface 1 (7) and an inner arc surface 2 (9), the inner arc surface 1 (7) and the inner arc surface 2 (9) are respectively located on the inner walls on both sides of the cold plate body (1), and a special-shaped hole (3) is provided inside one end of the cold plate body (1), the angle of the inner arc surface 1 (7) is 108°, and the angle of the inner arc surface 2 (9) is 115°.

2. A new energy vehicle battery pack cold plate according to claim 1, characterized in that: The outer wall of the cold plate body (1) is provided with an outer arc surface (8), and the two ends of the outer arc surface (8) are inclined to transition with the flange (2) and the inner groove (5).

3. A new energy vehicle battery pack cold plate according to claim 1, characterized in that: The thickness of the cold plate body (1) is 9 mm.

4. A new energy vehicle battery pack cold plate according to claim 1, characterized in that: The flange (2) is annularly wrapped around the outer side of the cold plate body (1); the flange (2) has a thickness of 5 mm; the inner wall of the flange (2) is provided with a glue-coated scale groove (4) in the shape of an annular track; the glue-coated scale groove (4) is a double-track intermittent line segment.

5. The new energy vehicle battery pack cold plate according to claim 1, characterized in that: The flange (2) is provided with mounting holes (6), the mounting holes (6) are evenly distributed inside the flange (2), and the hole radius of the mounting holes (6) is 6 mm.

6. A new energy vehicle battery pack cold plate according to claim 1, characterized in that: An inner angle (10) is provided at the connection between the flange (2) and the cold plate body (1), and the inner angle (10) is 286°.

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