Novel turning and milling box body structure

Abstract

The novel turning and milling box body structure comprises a base, a frame body arranged on the base and a cover body arranged at the upper end of the frame body, the base comprises a bottom plate and a heat exchange plate arranged on the bottom plate; the frame body is erected on the upper end face of the bottom plate, the heat exchange plate is arranged on the bottom plate and on the inner side of the frame body, and the heat exchange plate is provided with a liquid inlet and a liquid outlet. The outer surface of one side of the frame body is provided with a liquid inlet connector and a liquid outlet connector through which heat exchange liquid flows in and out, and the liquid inlet connector and the liquid outlet connector are connected with the liquid inlet and the liquid outlet respectively. According to the utility model, the detachable forehead box body design is realized through the frame body, the base and the cover body which are arranged in a split manner, and the optimal operation temperature of the battery is ensured through the integrated heat exchange plate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of battery manufacturing, especially relates to a novel structure of a turning-milling box. BACKGROUND

[0002] The battery pack box body is a container for accommodating and protecting the battery pack used in electric vehicles, energy storage systems and other equipment. It not only provides physical support and protection for the battery, preventing external environments such as moisture, dust and physical impact from causing damage to the battery, but also needs to have good thermal management performance to ensure that the battery operates within an appropriate operating temperature range, prolongs the battery life and ensures safety.

[0003] The existing battery pack box body is mostly made by bending sheet metal. Sheet metal technology is a process that uses cold working methods to cut, stamp, bend and other processes to make metal sheets into specific shapes. This manufacturing method has the advantages of low cost and high production efficiency, and has been widely used in many applications. However, with the development of the electric vehicle industry and the improvement of technical requirements, the traditional sheet metal technology has some limitations when facing some special requirements of the carrier. For carriers that need to withstand large mechanical stress or work in harsh environments, the traditional sheet metal box body may not meet the requirements of its deformation resistance. Due to the characteristics of sheet metal materials and the limitations of processing methods, when the vehicle encounters a collision or is in a vibrating environment for a long time, the box body may deform irreversibly, affecting the safety and stability of the internal battery. Sheet metal technology is difficult to achieve high-precision size control, especially in complex geometric shape designs, which may cause assembly difficulties or poor sealing performance. At the same time, in the application of some subdivided field products, the box body needs to be disassembled and assembled when needed, and the sheet metal formed box body is difficult to meet this requirement. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a novel structure of a turning-milling box to solve the technical problem of improving the firmness of the box body while allowing the box body to be disassembled and ensuring the optimal operating temperature of the battery inside the box body.

[0005] To achieve the above-mentioned purpose, the specific technical scheme of the novel structure of a turning-milling box of the utility model is as follows:

[0006] The novel structure of a turning-milling box includes a base, a frame body arranged on the base, and a cover body arranged on the upper end of the frame body;

[0007] The base includes a bottom plate and a heat exchange plate arranged on the bottom plate; the frame body is vertically arranged on the upper end surface of the bottom plate, and the heat exchange plate is arranged on the inner side of the frame body on the bottom plate; the heat exchange plate is provided with a liquid inlet and a liquid outlet;

[0008] The outer surface of one side of the frame body is provided with an inlet liquid interface and an outlet liquid interface for the inlet and outlet of heat exchange liquid, and the inlet liquid interface and the outlet liquid interface are connected with the inlet liquid port and the outlet liquid port respectively.

[0009] As a further improvement of the utility model, the frame body comprises front plate, rear plate, left plate and right plate which are vertically arranged respectively; the front plate and the rear plate are arranged in parallel, the left plate and the right plate are arranged in parallel, and the four are connected to form the frame body.

[0010] As a further improvement of the utility model, the front plate and the rear plate are provided with a plurality of horizontal internal thread holes at the connecting side end face, and the left plate and the right plate are provided with horizontal connecting holes corresponding to the horizontal internal thread holes; the left plate and the right plate are clamped from both sides to the front plate and the rear plate by bolts passing through the horizontal connecting holes and entering the corresponding horizontal internal thread holes, so as to form the frame body.

[0011] As a further improvement of the utility model, the frame body is provided with a plurality of vertical internal thread holes at the upper and lower end faces respectively, and the bottom plate and the cover body are provided with vertical connecting holes corresponding to the vertical internal thread holes; the bottom plate and the cover body are closed to the frame body by bolts passing through the vertical connecting holes and entering the corresponding vertical internal thread holes.

[0012] As a further improvement of the utility model, the upper and lower end faces of the frame body are concave and provided with sealing grooves for placing sealing pads.

[0013] As a further improvement of the utility model, the inlet liquid port and the outlet liquid port extend upward along the inner side of the front plate, and the inlet liquid interface and the outlet liquid interface extend to the frame body from the outer side of the front plate and are communicated with the inlet liquid port and the outlet liquid port respectively.

[0014] As a further improvement of the utility model, the front plate is provided with an electrical interface for electrical connection between the battery in the box and the outside, and a positioning pin for positioning, relative to the outer side of the frame body.

[0015] As a further improvement of the utility model, the rear plate is provided with a locker for fixing the box, relative to the outer side of the frame body.

[0016] As a further improvement of the utility model, the outer periphery of the frame body is flush with the outer periphery of the bottom plate, and the heat exchange plate is arranged close to the inner periphery of the lower end face of the frame body.

[0017] As a further improvement of the utility model, the base, the frame body and the cover body are processed by turning and milling.

[0018] Advantages:

[0019] The box body can realize higher dimensional accuracy and more complex geometric shape design than sheet metal through turning and milling processing, which is crucial for integrated high-efficiency heat dissipation components and optimization of internal space utilization. The turning and milling process can select high-strength alloy materials and accurately control the wall thickness, thereby manufacturing a box body with stronger rigidity and anti-deformation capability, which is particularly suitable for special carriers with strict requirements for anti-seismic and anti-impact.

[0020] By integrating the heat exchange plate in the base and setting the liquid inlet and outlet, the cooling liquid can circulate inside the battery pack, effectively improving the heat dissipation efficiency. This design not only ensures that the battery pack maintains an appropriate working temperature during operation, but also helps to extend the battery life and improve system safety.

[0021] The frame body is composed of a front plate, a rear plate, a left plate, and a right plate, and the plates are connected through horizontal internal threaded holes and bolts, achieving quick assembly and disassembly. In particular, the design of the left plate and the right plate clamping the front plate and the rear plate from both sides allows the operator to easily open or close the box, greatly simplifying the maintenance, repair, and upgrade process.

[0022] Sealing grooves for placing sealing rings are provided on the upper and lower end faces of the frame body, ensuring the air tightness and waterproof performance of the entire box, protecting the internal electronic components from external environmental influences. At the same time, it is also convenient to replace the sealing material to maintain the sealing effect during long-term use.

[0023] The vertical internal threaded holes and bolt connection between the base plate and the cover and the frame body provide stable mechanical support, enhancing the overall structural strength, especially suitable for application scenarios that need to withstand large external forces or vibrations.

[0024] The liquid inlet and outlet interfaces are located on the outer surface of one side of the frame body, facilitating the connection of the external cooling system; the electrical interface is provided on the outer side of the front plate, facilitating the connection of the battery cell and the external circuit; the positioning pin and the locker are respectively located on the outer side of the front plate and the rear plate, ensuring accurate positioning and firm fixation of the box during installation. Such layout design is not only beautiful but also practical, improving the operation convenience and reliability of the system.

[0025] In summary, the novel turning and milling box structure provided by the utility model improves the heat management performance, simplifies the maintenance operation, ensures the sealing and stability, and optimizes the interface layout and appearance design, providing an ideal solution for special requirement carriers (such as electric vehicles, energy storage systems, etc.). These improvements not only improve the market competitiveness of the product, but also bring better user experience and service value. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural diagram of a novel turning and milling box body of the utility model;

[0027] Marked description in the figure: 1, base; 11, bottom plate; 12, heat exchange plate; 121, liquid inlet; 122, liquid outlet; 2, frame body; 21, front plate; 211, liquid inlet interface; 212, liquid outlet interface; 213, electrical interface; 214, positioning pin; 22, rear plate; 221, locker; 23, left plate; 24, right plate; 241, horizontal connecting hole; 25, vertical internal thread hole; 26, sealing groove; 3, cover plate; 31, vertical connecting hole. DETAILED DESCRIPTION

[0028] In order to deepen the understanding of the utility model, the utility model will be further described in combination with examples and drawings below, and the examples are only used to explain the utility model and do not constitute a limitation on the protection scope of the utility model.

[0029] Implementation example:

[0030] As Figure 1 The structure of a novel turning and milling box body shown in the figure, the base 1, cover plate 3 and frame body 2 are made by turning and milling. The frame body 2 is vertically erected along the base 1, and the cover plate 3 covers the frame body 2 from above, realizing the sealing protection of the battery pack in the box body.

[0031] The base 1 comprises a bottom plate 11 and a heat exchange plate 12 arranged on the bottom plate 11. The heat exchange plate 12 exchanges heat with the battery placed thereon by the liquid with suitable temperature through the liquid inlet 121 and liquid outlet 122, so as to ensure that the battery maintains a constant suitable temperature. The heat exchange channel is arranged in the heat exchange plate 12 and extends between the liquid inlet 121 and liquid outlet 122, so as to ensure that the heat exchange liquid contacts the battery to the maximum extent and is discharged after fully exchanging heat. The heat exchange plate 12 is placed on the bottom plate 11 and tightly abuts the inner side of the frame body 2. The vertical connecting hole 31 is arranged on the exposed part of the bottom plate 11 relative to the heat exchange plate 12. The exposed part is provided with a sealing groove 26 at the contact end of the frame 2. The sealing pad is arranged to ensure the sealing between the frame body 2 and the bottom plate 11. At the same time, the heat exchange plate 12 abuts against the frame body 2, further ensuring the sealing effect. The cover plate 3 covers the opening of the frame body 2 from above. The vertical connecting hole 31 is arranged along the outer peripheral edge. The cover plate 3 is installed on the frame body 2 by bolts.

[0032] The frame body 2 comprises a front plate 21, a rear plate 22, a left plate 23 and a right plate 24 arranged vertically in four directions of front, rear, left and right. The front plate 21 is provided with a liquid inlet interface 211 and a liquid outlet interface 212 communicated with the heat exchange plate 12, and an electrical interface 213 communicated with the battery in the box body, and a positioning pin 214 for positioning. The rear plate 22 is provided with a B-type locker 221 for fixed installation. The left plate 23 and the right plate 24 clamp the front plate 21 and the rear plate 22 from both sides, and a horizontal connecting hole 24 is arranged along the vertical direction close to the edge on both sides. A plurality of horizontal internal screw holes are arranged vertically on the side end faces of the front plate 21 and the rear plate 22. The left plate 23 and the right plate 24 clamp the front plate 21 and the rear plate 22 from both sides by rotating and tightening the bolts, and the installation of the frame body 2 is completed. When disassembly is required, the cover plate 3 and the base 1 are removed from the frame body 2 by loosening the bolts, and then the frame body 2 is disassembled.

[0033] The utility model adopts modular design, and each component (such as front plate, rear plate, left plate, right plate) is connected by bolt, allowing quick assembly and disassembly. This design greatly simplifies the maintenance, repair and upgrade process, reduces downtime and reduces operation difficulty. Compared with traditional sheet metal process, turning and milling processing can achieve higher dimensional accuracy and more complex geometric shape design. This not only improves the manufacturing quality of the product, but also makes it possible to integrate efficient heat dissipation components and optimize internal space utilization. Turning and milling processing selects high-strength alloy material and accurately controls the wall thickness, so that the box has stronger rigidity and anti-deformation ability, especially suitable for application scenarios with strict requirements for shock resistance and impact resistance. Turning and milling processing can realize the integrated forming of part of the structure, reducing the welding or riveting joints and reducing the corrosion risk and potential leakage problem caused by the joints. The heat exchange plate is integrated, and the heat exchange liquid circulation is realized through the liquid inlet and the liquid outlet. Coolant can be input in high-temperature environment, and high-temperature liquid can be supplemented in low-temperature environment, ensuring that the battery pack maintains an appropriate working temperature during operation, prolonging the battery life and enhancing the safety of the system.

[0034] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to the features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, the features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A novel structure of a turning and milling box, characterized by, The base, the frame body arranged on the base, and the cover arranged on the upper end of the frame body are provided; The base comprises a bottom plate and a heat exchange plate arranged on the bottom plate; The frame body is erected on the upper end surface of the bottom plate, and the heat exchange plate is arranged on the inside of the frame body on the bottom plate, and the heat exchange plate is provided with a liquid inlet and a liquid outlet; The frame body is provided with a liquid inlet interface and a liquid outlet interface on one side of the outer surface of the frame body for the inlet and outlet of the heat exchange liquid, and the liquid inlet interface and the liquid outlet interface are connected with the liquid inlet and the liquid outlet respectively.

2. The novel structure of a turning and milling box according to claim 1, characterized in that, The frame body comprises a front plate, a rear plate, a left plate and a right plate arranged vertically respectively; the front plate and the rear plate are arranged in parallel, and the left plate and the right plate are arranged in parallel, and the four are connected to form the frame body.

3. The novel structure of a turning and milling box according to claim 2, characterized in that, The front plate and the rear plate are provided with a plurality of horizontal internal screw holes on the side end surface connected with the left plate and the right plate, and the left plate and the right plate are provided with horizontal connection holes corresponding to the horizontal internal screw holes, and the left plate and the right plate are clamped from both sides of the front plate and the rear plate by bolts passing through the horizontal connection holes and entering the corresponding horizontal internal screw holes, so as to form the frame body by surrounding.

4. The novel structure of a turning and milling box according to claim 2, characterized in that, The frame body is provided with a plurality of vertical internal screw holes on the upper and lower end surfaces respectively, and the bottom plate and the cover are provided with vertical connection holes corresponding to the vertical internal screw holes, and the bottom plate and the cover are closed to the frame body by bolts passing through the vertical connection holes and entering the corresponding vertical internal screw holes.

5. The novel structure of a turning and milling box according to claim 1, characterized in that, The upper and lower end surfaces of the frame body are concave and provided with sealing grooves for placing sealing pads.

6. The novel structure of a turning and milling box according to claim 2, characterized in that, The liquid inlet and the liquid outlet extend upward along the inside of the front plate from the heat exchange plate, and the liquid inlet interface and the liquid outlet interface extend to the inside of the frame body from the outside of the front plate, and are communicated with the liquid inlet and the liquid outlet respectively.

7. The novel structure of a turning and milling box according to claim 2, characterized in that, The front plate is provided with an electrical interface for electrical connection between the battery cells in the box and the outside relative to the outer side surface of the frame body, and a positioning pin for positioning.

8. The novel structure of a turning and milling box according to claim 2, characterized in that, The rear plate is provided with a locking device for fixing the box relative to the outer side surface of the frame body.

9. The novel structure of a turning and milling box according to claim 1, characterized in that, The outer periphery of the frame body is flush with the outer periphery of the bottom plate, and the heat exchange plate is arranged close to the inner periphery of the lower end surface of the frame body.

10. The novel structure of a turning and milling box according to claim 1, characterized in that, The base, the frame body and the cover are made by turning and milling.

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