Heat exchange plate and battery frame integrated structure, battery and electric automobile

Abstract

The invention belongs to the technical field of electric automobiles, and discloses a heat exchange plate and battery frame integrated structure, a battery and an electric automobile, the heat exchange plate and battery frame integrated structure comprises a battery frame, a heat exchange plate and a heat insulation material composite plate are arranged in the battery frame, and the heat insulation material composite plate comprises a heat insulation material plate and a heat exchange plate; the heat insulation material plate is fixedly connected with the battery frame body, the heat exchange plate is fixedly connected with the heat insulation material plate, a battery cell group is fixedly connected onto the heat exchange plate, and the heat exchange plate is not in contact with the battery frame body. The stability and constancy of the working temperature of the battery are improved, the electric quantity loss is reduced, the common processes such as gluing and hot pressing are integrated, the process is simple, and the cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of electric vehicles, and in particular to an integrated structure of a heat exchange plate and a battery frame, a battery and an electric vehicle. Background Art

[0002] In the field of batteries for electric vehicles, in order to improve the efficiency of battery grouping and simplify the assembly process, more and more battery systems have adopted the integrated solution of frame and heat exchange plate. The main forms of this technical solution are: ① welding of extruded profile heat exchange plate and profile frame; ② die-casting box body integrally casts the flow channel and then welds the heat exchange system cover plate; ③ stamping heat exchange plate and profile frame welding or fixing with bolts and other fixings. However, since the heat exchange plate is fixed on the battery frame, there will be heat transfer that affects the heat exchange effect of the heat exchange plate and the stability and constancy of the battery operating temperature, and will also cause power loss. Therefore, it is urgent to develop an integrated structure of heat exchange plate and battery frame to solve the above technical problems. Summary of the invention

[0003] In order to solve or partially solve the problems existing in the related art, the purpose of the present invention is to provide an integrated structure of a heat exchange plate and a battery frame, a battery and an electric vehicle, which composites the heat exchange plate with a heat insulating material and then integrates it with the battery frame, thereby reducing the thermal conductivity between the heat exchange plate and the metal battery frame, reducing the heat transfer between the heat exchange plate and the surrounding parts and the environment, and improving the heat exchange effect of the heat exchange plate, thereby improving the stability and constancy of the battery operating temperature and reducing power loss. At the same time, it is integrated using common processes such as gluing and hot pressing, and the process is simple and low cost.

[0004] To achieve the above-mentioned purpose, in a first aspect, the present invention provides an integrated structure of a heat exchange plate and a battery frame, including a battery frame, wherein a heat exchange plate and a thermal insulation material composite plate are arranged in the battery frame, the thermal insulation material composite plate includes a thermal insulation material plate and a heat exchange plate, the thermal insulation material plate is fixedly connected to the battery frame, the heat exchange plate and the thermal insulation material plate are fixedly connected, a battery cell group is fixedly connected to the heat exchange plate, and the heat exchange plate and the battery frame are not in contact.

[0005] The heat insulation material plate is provided with a mounting groove, and the shape of the mounting groove corresponds to the shape of the heat exchange plate.

[0006] In some embodiments of the present invention, the cross-sectional shape of the thermal insulation material board is T-shaped.

[0007] In some embodiments of the present invention, the battery frame is provided with a through hole, and the shape of the through hole corresponds to the shape of the T-shaped heat insulation material plate.

[0008] In some embodiments of the present invention, the T-shaped heat insulation material plate and the battery frame are fixedly connected by an adhesive.

[0009] In some embodiments of the present invention, the battery cell groups are arranged in an array.

[0010] In some embodiments of the present invention, a metal plate or a honeycomb plate is embedded in the bottom of the heat exchange plate.

[0011] In some embodiments of the present invention, a heat exchange plate water inlet and outlet are provided on the heat exchange plate.

[0012] The invention also discloses a battery, which comprises an integrated structure of a heat exchange plate and a battery frame.

[0013] The invention also discloses an electric vehicle, which comprises a battery.

[0014] The beneficial effects of the present invention are as follows: the integrated structure of the heat exchange plate and the battery frame, the battery and the electric vehicle provided by the present invention have significant advantages and practical value. First, by adding a heat insulation material composite plate between the battery frame and the heat exchange plate, the heat insulation performance of the entire battery system is significantly improved. This design not only effectively blocks heat transfer, but also greatly improves the impact resistance of the battery system because the metal plate or honeycomb plate embedded in the bottom serves as a protective layer, especially enhancing the safety during bottom collision.

[0015] Secondly, the design of the present invention improves the heat exchange effect and stabilizes the battery operating temperature. Since the heat exchange plate is not in direct contact with the battery frame, heat loss is reduced and the working efficiency of the heat exchange plate is improved. At the same time, this heat insulation design reduces the impact of external temperature on the battery, helps to maintain the stability and constancy of the battery operating temperature, and thus reduces power loss.

[0016] In terms of structural design, the present invention adopts a T-shaped insulation material plate and a corresponding installation groove design, which not only improves the structural strength, but also facilitates installation and disassembly. This optimized structural design simplifies the assembly process of the battery system and improves production efficiency. In addition, a metal plate or a honeycomb plate can be embedded in the bottom of the heat exchange plate, providing more options for different application scenarios and enhancing the flexibility of the design.

[0017] Finally, the present invention also has significant advantages in terms of practicality. The water inlet and outlet provided on the heat exchange plate facilitate daily maintenance and replacement of coolant. The overall design has good versatility and can be applied to various types of batteries and electric vehicles. These features enable the present invention to demonstrate significant innovation and advantages in improving battery system performance, safety and practicality, and provide a new solution for the development of electric vehicle battery technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments disclosed in the present invention, the drawings of the embodiments will be briefly introduced below. These drawings are only used for illustrative purposes and are not intended to limit the protection scope of the present invention.

[0019] Figure 1 It is an assembly diagram of the integrated structure of the heat exchange plate and the battery frame of the present invention;

[0020] Figure 2 It is an exploded view of the integrated structure of the heat exchange plate and the battery frame of the present invention;

[0021] Figure 3 It is a top view of the integrated structure of the heat exchange plate and the battery frame of the present invention;

[0022] Figure 4 yes Figure 3 AA section view;

[0023] Figure 5 yes Figure 4 B is a partial enlarged view;

[0024] Figure 6 is a schematic diagram of a battery frame of the present invention;

[0025] Figure 7 It is a schematic diagram of the heat exchange plate and the heat insulation material composite plate of the present invention. DETAILED DESCRIPTION

[0026] The technical solution of the present invention (including the preferred technical solution) is further described in detail below by means of the accompanying drawings and by listing some optional embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The heat exchange plate and battery frame integrated structure proposed in the present invention is designed to solve the safety challenges faced by new energy vehicle battery systems. With the rapid development of electric vehicle technology, battery safety has become the focus of industry attention. Battery safety depends largely on the stability and constancy of the battery operating temperature. The traditional heat exchange plate and battery frame integrated structure affects the heat exchange effect of the heat exchange plate and the stability and constancy of the battery operating temperature due to heat transfer. The present invention provides a solution that can effectively insulate and reduce costs through innovative material application and structural design.

[0028] like Figure 1-7As shown, the present invention proposes an innovative heat exchange plate and battery frame integrated structure, aiming to improve the performance and safety of the battery system. The structure is mainly composed of key components such as the battery frame 2, the heat exchange plate and insulation material composite plate 3, and the battery cell group 1. Through ingenious design, a balance between efficient heat dissipation, good insulation and structural strength is achieved.

[0029] The battery frame 2, as the outer shell of the entire structure, not only plays a role of protection and support, but also forms a complete accommodation space with the internal components. Inside the frame, the most eye-catching is the innovative design of the heat exchange plate and insulation material composite plate 3. This composite plate consists of three parts: the heat exchange plate 31, the insulation material plate 32, and the heat exchange plate inlet and outlet 33. Each part has its own unique functions and advantages.

[0030] The heat exchange plate 31 is one of the core components of the entire system, directly supporting the battery cell group 1 and exchanging heat with it. The battery cell group 1 is composed of a plurality of neatly arranged battery cells, and effective thermal management is achieved through close contact with the heat exchange plate 31. The water inlet and outlet 33 provided on the heat exchange plate 31 further enhances the heat exchange capacity, allowing the coolant to circulate effectively and keep the battery within the optimal operating temperature range.

[0031] The heat-insulating material plate 32 is another key innovation of the present invention. It is made of a material with low thermal conductivity, such as a resin-based composite material or a special plastic, and forms a whole with the heat exchange plate 31. This design cleverly solves the problem of heat loss caused by direct contact between the heat exchange plate and the metal battery frame in the traditional structure. By adding this layer of heat-insulating material between the heat exchange plate 31 and the battery frame 2, the heat insulation effect of the heat exchange plate 31 is greatly improved, and unnecessary heat transfer with surrounding components and the environment is reduced.

[0032] It is worth noting that the cross section of the heat insulating material plate 32 is T-shaped. This unique shape design not only increases the structural strength, but also facilitates assembly with the battery frame 2. The battery frame 2 is correspondingly provided with through holes matching the T-shaped heat insulating material plate 32, and the two are firmly connected together by the adhesive 4. This design not only simplifies the assembly process, but also ensures the stability of the overall structure.

[0033] To further enhance the mechanical strength of the bottom, a metal plate or a honeycomb plate may be embedded in the bottom of the heat exchange plate 31. This design acts as a bottom guard plate, effectively protecting the heat exchange plate 31 and the battery cells from mechanical damage from the bottom, thereby improving the impact resistance and safety of the entire battery system.

[0034] The battery pack 1 is arranged in an array structure, which is not only conducive to the effective use of space, but also facilitates the uniform distribution and dissipation of heat. Each battery cell can be fully cooled, ensuring the temperature balance of the entire battery pack and extending the battery life.

[0035] Another significant advantage of the present invention is the simplicity and cost-effectiveness of its manufacturing process. The heat exchange plate 31 and the heat insulation material plate 32 can be integrated together by common processes such as hot pressing or gluing, without the need for complex processing equipment, thereby reducing production costs. At the same time, the heat insulation material plate 32 is connected to the battery frame 2 with an adhesive 4, which is not only simple to operate, but also ensures good sealing and structural strength.

[0036] In general, this design significantly reduces the heat conduction between the heat exchange plate 31 and the metal battery frame 2 by combining the heat exchange plate 31 with the heat insulation material plate 32 and then integrating it with the battery frame 2, and reduces the heat exchange between the heat exchange plate 31 and the surrounding components and the environment. This not only improves the heat exchange effect of the heat exchange plate 31, but also improves the stability and constancy of the battery operating temperature, effectively reducing power loss.

[0037] In addition, this structural design also has good adaptability and scalability. By adjusting the thickness and material of the heat insulation material plate 32, the needs of different types of batteries and application scenarios can be met. The design of the heat exchange plate inlet and outlet 33 also facilitates possible future upgrades and maintenance, making the entire system more flexible and easy to manage.

[0038] The heat insulation material plate 32 is provided with a mounting groove for mounting the heat exchange plate 31, and the shape of the mounting groove corresponds to the shape of the heat exchange plate 31. This design further enhances the stability of the structure and the accuracy of assembly. At the same time, the heat insulation material plate 32 completely covers the bottom of the heat exchange plate 31, ensuring that the bottom also has a good heat insulation effect, further improving the overall thermal management efficiency.

[0039] The integrated structure of heat exchange plate and battery frame proposed in this invention is an innovative design that comprehensively considers thermal management, structural strength, production cost and practicality. It not only solves the thermal management problem existing in traditional battery systems, but also improves the overall performance and safety through ingenious structural design. This design provides new ideas for the development of electric vehicle battery systems and is expected to play an important role in improving battery efficiency, extending service life and enhancing safety.

[0040] Those skilled in the art will readily appreciate that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, combinations, replacements, improvements, etc. made within the spirit and principles of the present invention are included within the protection scope of the present invention.

Claims

1. A heat exchange plate and battery frame integrated structure, comprising a battery frame (2), characterized in that: A heat exchange plate and a heat insulation material composite plate (3) are arranged in the battery frame (2); the heat insulation material composite plate (3) comprises a heat insulation material plate (32) and a heat exchange plate (31); the heat insulation material plate (32) is fixedly connected to the battery frame (2); the heat exchange plate (31) is fixedly connected to the heat insulation material plate (32); a battery cell group (1) is fixedly connected to the heat exchange plate (31); and the heat exchange plate (31) and the battery frame (2) are not in contact.

2. The heat exchange plate and battery frame integrated structure according to claim 1, characterized in that: The heat insulation material plate (32) is provided with a mounting groove, and the shape of the mounting groove corresponds to the shape of the heat exchange plate (31).

3. The heat exchange plate and battery frame integrated structure according to claim 1, characterized in that: The cross-sectional shape of the heat insulating material plate (32) is T-shaped.

4. The heat exchange plate and battery frame integrated structure according to claim 3, characterized in that: The battery frame (2) is provided with a through hole, the shape of the through hole corresponding to the shape of the T-shaped heat insulation material plate (32).

5. The heat exchange plate and battery frame integrated structure according to claim 4, characterized in that: The T-shaped heat insulating material plate (32) and the battery frame (2) are fixedly connected by an adhesive (4).

6. The heat exchange plate and battery frame integrated structure according to claim 5, characterized in that: The battery cell groups (1) are arranged in an array.

7. The heat exchange plate and battery frame integrated structure according to claim 6, characterized in that: A metal plate or a honeycomb plate is embedded in the bottom of the heat exchange plate (31).

8. The heat exchange plate and battery frame integrated structure according to claim 6, characterized in that: The heat exchange plate (31) is provided with a heat exchange plate water inlet and outlet (33).

9. A battery, characterized in that: The battery comprises the heat exchange plate and battery frame integrated structure as claimed in any one of claims 1 to 8.

10. An electric vehicle, characterized in that: The electric vehicle comprises the battery according to claim 9.

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