Power battery box

Abstract

The utility model discloses a power battery box, which relates to the technical field of new energy power batteries, and comprises a bottom plate and two panels, the two panels are respectively welded and fixed on the front side and the rear side of the bottom plate, and a liquid flow channel for adjusting the overall temperature of the battery box is arranged in the bottom plate. A water inlet and a water outlet are formed in the front end of the panel located on the front side, the water inlet and the water outlet are both communicated with the interior of the liquid flow channel, and a mounting beam used for fixing a battery module is arranged at the upper end of the bottom plate. According to the utility model, by adjusting the length of the bottom plate of the aluminum extrusion process, the production requirements of different vehicle types and electric quantity requirements can be easily met without additionally developing a new mold, the development cost is favorably reduced, the product development period is effectively shortened, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy power battery technical field, concretely is a power battery box. BACKGROUND

[0002] With the continuous expansion and diversification of the new energy vehicle market, the design and manufacturing of power battery boxes are facing more and more challenges. The production mode of traditional power battery boxes often relies on specific molds, which leads to high development cost and long product development cycle. At the same time, the structural strength and stability of the power battery box are also key factors affecting its performance and safety.

[0003] In terms of heat dissipation, a large amount of heat will be generated during the working process of the power battery. If it cannot be dissipated in time and effectively, it will seriously affect the performance, life and safety of the battery. The traditional heat dissipation methods, such as natural cooling or fan forced air cooling, often have limited heat dissipation efficiency, which is difficult to meet the heat dissipation needs of high-power-density battery packs.

[0004] Based on this, a power battery box is now provided, which can eliminate the drawbacks of existing boxes. INVENTION CONTENTS

[0005] The utility model aims at providing a power battery box to solve the problems of high development cost, long development cycle and low heat dissipation efficiency of the traditional power battery box in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A power battery box, comprising a bottom plate and two panels, the two panels are respectively welded and fixed on the front and rear sides of the bottom plate, a liquid flow channel for adjusting the overall temperature of the battery box is formed in the inside of the bottom plate, a water inlet and a water outlet are formed in the front end of the panel on the front side, and the water inlet and the water outlet are both connected with the inside of the liquid flow channel, and a mounting beam for fixing the battery module is arranged on the upper end of the bottom plate.

[0008] Preferably, the mounting beam comprises two symmetrical narrow cross beams fixed on the front and rear sides of the upper end of the bottom plate and a wide cross beam fixed on the middle part of the upper end of the bottom plate.

[0009] Preferably, a plurality of hoisting units are symmetrically arranged on the left and right ends of the bottom plate, each hoisting unit comprises a lug contact groove and two mounting screw holes one, and the two mounting screw holes one are symmetrically distributed on the front and rear sides of the lug contact groove.

[0010] Preferably, a plurality of mounting screw holes two are formed in the bottom of the bottom plate, and the plurality of mounting screw holes two are divided into five installation units, and each installation unit is composed of four mounting screw holes two.

[0011] Preferably, the bottom plate is made of extruded aluminum process, and the four sides are sealed by welding fence, and the two panels are cast aluminum structure.

[0012] Compared with the prior art, the utility model has the beneficial effects as follows:

[0013] 1. The utility model discloses a length of the bottom plate of the extruded aluminum process is adjusted, without extra development of new mould, different vehicle models and the production requirement of the electric quantity demand can be easily adapted, which is favorable for reducing the development cost, effectively shortening the product development cycle and improving the production efficiency.

[0014] 2. The utility model discloses a water inlet, water outlet and liquid flow channel can utilize the circulating liquid to adjust the overall temperature of the battery box, so that the battery module is kept in the optimum working temperature range, prolongs the service life of the battery and improves the performance.

[0015] 3. The utility model discloses a lifting unit is arranged at the left and right sides of the bottom plate, so that the lifting tool (such as lifting ring, lifting hook and the like) can be connected to the lug contact groove on the bottom plate, and is fixed by utilizing the mounting threaded hole one, ensures that the box body can move stably in the process of carrying and installing, and the lifting unit is arranged at the left and right sides of the bottom plate, can also optimize the space layout of the box body, and then makes the internal space of the box body more compact and reasonable, and is favorable for improving the layout efficiency and space utilization of the battery module. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structural schematic diagram of the utility model.

[0017] Figure 2 It is the structural schematic diagram of the lower end face of the utility model.

[0018] Figure 3 It is the structural schematic diagram of the utility model Figure 2 A position of the utility model.

[0019] Figure 4 It is the structural schematic diagram of the water inlet and water outlet position of the utility model.

[0020] Mark annotation: 1, bottom plate;2, panel;3, water inlet;4, wide crossbeam;5, narrow crossbeam;6, water outlet;7, lug contact groove;8, mounting threaded hole one;9, mounting threaded hole two. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following combines the drawings and examples, and further detailedly explains the utility model.

[0022] In one embodiment, as shown in Figures 1-4 A power battery box, comprising a bottom plate 1 and two side panels 2, the two side panels 2 are respectively welded and fixed on the front and back sides of the bottom plate 1, the inside of the bottom plate 1 is provided with a liquid flow channel for adjusting the overall temperature of the battery box, the front end of the side panel 2 on the front side is provided with a water inlet 3 and a water outlet 6, and the water inlet 3 and the water outlet 6 are both connected with the inside of the liquid flow channel, and the upper end of the bottom plate 1 is provided with a mounting beam for fixing the battery module.

[0023] In this embodiment, the battery module is first installed on the upper end of the bottom plate 1 through the mounting beam, and the water inlet 3, the water outlet 6 and the liquid flow channel can adjust the overall temperature of the battery box through the circulating liquid, so as to keep the battery module in the best working temperature range, prolong the service life of the battery and improve the performance.

[0024] In an alternative embodiment, the mounting beam comprises two symmetrical narrow cross beams 5 fixed on the front and back sides of the upper end of the bottom plate 1 and a wide cross beam 4 fixed on the middle of the upper end of the bottom plate 1.

[0025] It should be noted that the two narrow cross beams 5 are symmetrically fixed on the front and back sides of the upper end of the bottom plate 1, providing stable front and back support for the battery module. At the same time, the wide cross beam 4 is fixed on the middle of the upper end of the bottom plate 1, providing additional central support for the battery module, further enhancing the stability of the entire battery module installation.

[0026] In an alternative embodiment, the left and right ends of the bottom plate 1 are symmetrically provided with a plurality of hoisting units, each of which comprises a lug contact groove 7 and two mounting screw holes 8, and the two mounting screw holes 8 are symmetrically distributed on the front and back sides of the lug contact groove 7.

[0027] It should be noted that the left and right ends of the bottom plate 1 are symmetrically provided with a plurality of hoisting units. These hoisting units not only make the carrying and installation process of the box more convenient and safe, but also ensure that the box will not be damaged during the entire process. The lug contact groove 7 provides a stable contact surface for the lifting tool (such as a lifting ring, a lifting hook, etc.), ensuring that the box can be smoothly lifted and lowered during the lifting process. The two mounting screw holes 8 are symmetrically distributed on the front and back sides of the lug contact groove 7, which provides a reliable fixing point for the installation of the lifting tool.

[0028] In an alternative embodiment, the bottom plate 1 is provided with a plurality of mounting screw holes 9, and the plurality of mounting screw holes 9 are divided into five columns of mounting units, and each column of mounting units is composed of four mounting screw holes 9.

[0029] It should be noted that the mounting screw holes two 9 are fixed with the mounting beams, and then fixed on the vehicle body, which is convenient to disassemble and assemble.

[0030] In an optional embodiment, the bottom plate 1 is made of extruded aluminum process, and the four sides are sealed by welding fence, and the two panels 2 are cast aluminum structure.

[0031] It should be noted that the bottom plate 1 is made of extruded aluminum process, which not only realizes lightweight, but also ensures the overall strength and rigidity of the box body, and the extruded aluminum material has good heat conduction performance, which is helpful for heat dissipation. In addition, the four sides of the bottom plate 1 are sealed by welding fence. The design of welding fence can effectively prevent liquid or other impurities from entering the inside of the box, ensuring the sealing performance of the box and the cleanliness of the internal environment. At the same time, the welding fence also enhances the structural strength of the bottom plate 1, making it more stable and durable. On the other hand, the two panels 2 are made of cast aluminum structure, which can ensure that they have enough strength and rigidity. At the same time, the cast aluminum material also has good heat dissipation performance, which is helpful for the heat dissipation of the battery module. And the two panels 2 share a mold during production.

[0032] The above embodiment discloses a power battery box, wherein first, the battery module is fixed on the upper end of the bottom plate 1 by the mounting beams (narrow cross beam 5 and wide cross beam 4). The pipes of the external cooling system are connected with the water inlet 3 and the water outlet 6.

[0033] When the power battery box needs to be transported or installed, the lifting unit can be used. The lifting tool (such as lifting ring, lifting hook, etc.) is installed on the lug contact groove 7 and fixed through the mounting screw hole one 8. Ensure that the box is lifted and lowered stably and safely during lifting.

[0034] When the box needs to be installed on the vehicle body, first, the mounting screw holes two 9 are fixed with the mounting beams, and then fixed on the vehicle body.

[0035] When the battery module needs to be cooled, the external cooling system is started, and the cooling liquid circulates in the liquid flow channel. The cooling liquid absorbs the heat generated by the battery module, and flows out of the box through the water outlet 6, and then flows back into the box through the water inlet 3 after cooling.

[0036] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A power battery housing, characterized in that, It includes a base plate (1) and two panels (2). The two panels (2) are welded and fixed to the front and rear sides of the base plate (1) respectively. The base plate (1) has a liquid flow channel for adjusting the overall temperature of the battery box. The front panel (2) has an inlet (3) and an outlet (6) at its front end. The inlet (3) and outlet (6) are connected to the inside of the liquid flow channel. The upper end of the base plate (1) is provided with a mounting beam for fixing the battery module.

2. The power battery housing according to claim 1, characterized in that, The mounting beam includes two narrow crossbeams (5) symmetrically fixed on the front and rear sides of the upper end of the base plate (1) and a wide crossbeam (4) fixed in the middle of the upper end of the base plate (1).

3. A power battery housing according to claim 2, characterized in that, The base plate (1) is symmetrically provided with several hoisting units at its left and right ends. Each hoisting unit includes a lug contact groove (7) and two mounting thread holes (8) on the base plate (1). The two mounting thread holes (8) are symmetrically distributed on the front and rear sides of the lug contact groove (7).

4. A power battery housing according to claim 2, characterized in that, The bottom of the base plate (1) has a plurality of mounting threaded holes (9), which are divided into five rows of mounting units, each row of mounting units consisting of four mounting threaded holes (9).

5. A power battery housing according to claim 1, characterized in that, The base plate (1) is made by aluminum extrusion process and is sealed with a welded fence around its perimeter. The two panels (2) are made of cast aluminum.

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