Energy storage box body structure with parallel flow channels

Abstract

The utility model provides an energy storage box body structure with parallel flow channels, and relates to the technical field of battery boxes. Comprising an integrated flow channel box body, a water inlet flow collecting box and a water outlet flow collecting box, and a water inlet liquid cooling flow channel and a water outlet liquid cooling flow channel are arranged in the integrated flow channel box body; mounting plates are arranged on the two opposite sides of the water inlet flow collecting box and the two opposite sides of the water outlet flow collecting box; a mounting groove is formed in the top of the integrated flow channel box body, the mounting plate is embedded into the mounting groove, the top of the mounting plate is flush with the top of the integrated flow channel box body, and the mounting plate and the integrated flow channel box body are welded and fixed; the top of the integrated flow channel box body is provided with a water inlet communicating with the water inlet flow collecting box and the water inlet liquid cooling flow channel, and the top of the integrated flow channel box body is provided with a water outlet communicating with the water outlet flow collecting box and the water outlet liquid cooling flow channel. According to the utility model, the welding difficulty and the welding risk point can be reduced, and the air tightness of the integrated flow channel box body is improved; and a gradient runner is formed at a runner turning opening, so that the flow velocity uniformity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery boxes, and in particular to an energy storage box structure with parallel flow channels. Background Art

[0002] The temperature control requirement of the battery box has always been one of the important considerations in the design process of the energy storage box. Its importance lies in ensuring that the battery can maintain an appropriate temperature during normal operation and preventing the battery from overheating or overcooling. The capacity and power output will be reduced too much. Therefore, various factories are also seeking more efficient and reliable cooling methods to achieve better and more comprehensive battery cooling methods.

[0003] The design principle of the parallel flow channel is to divide the liquid cooling space at the bottom of the box into several independent flow channels, and then use the collecting box to cool these independent flow channels. The advantage of this type of structure is that it can increase the heat flux density of the box and allow the box to charge and discharge faster. At present, arc welding is often used for welding the collecting box and the integrated flow channel, but the arc welding process of aluminum alloy is also accompanied by great welding risks. The current method is to increase welding reliability by minimizing welding points and avoiding liquid cooling channels, but the risk points of arc welding itself still exist in essence, and the risk of welding is not fundamentally solved. In addition, in previous water flow simulations, under the premise of the same pressure difference on both sides, liquid cooling channels of the same length will reduce the flow rate at the farthest turning point and cannot maintain the uniformity of the flow rate. Utility Model Content

[0004] The purpose of the utility model is to provide a parallel flow channel energy storage box structure, which can propose solutions to the deficiencies of the prior art, reduce welding difficulty and welding risk points, and improve the air tightness of the integrated flow channel box; and form a gradient flow channel at the flow channel turning point to improve the uniformity of the flow rate.

[0005] The technical solution adopted by the utility model is:

[0006] The embodiment of the present application provides an energy storage box structure with parallel flow channels, including an integrated flow channel box, a water inlet header box and a water outlet header box, wherein an inlet liquid cooling flow channel and an outlet liquid cooling flow channel are arranged in the integrated flow channel box, one end of the inlet liquid cooling flow channel and one end of the outlet liquid cooling flow channel are both closed, and the other end of the inlet liquid cooling flow channel is connected to the other end of the outlet liquid cooling flow channel;

[0007] The water inlet collecting box and the water outlet collecting box are both arranged on the top of the integrated flow channel box, and both of them are open downwards; mounting plates are provided on the opposite sides of the water inlet collecting box and the opposite sides of the water outlet collecting box; a mounting groove is provided on the top of the integrated flow channel box, and the mounting plate is embedded in the mounting groove, the top of the mounting plate is flush with the top of the integrated flow channel box, and the mounting plate is welded and fixed to the integrated flow channel box; a water inlet connecting the water inlet collecting box and the water inlet liquid cooling flow channel is provided on the top of the integrated flow channel box, and a water outlet connecting the water outlet collecting box and the water outlet liquid cooling flow channel is provided on the top of the integrated flow channel box.

[0008] Furthermore, in some embodiments of the present invention, the mounting plate of the water inlet collecting box abuts against the mounting plate of the water outlet collecting box.

[0009] Furthermore, in some embodiments of the present invention, the water inlet header box is provided with a water inlet hole, and the water outlet header box is provided with a water outlet hole.

[0010] Furthermore, in some embodiments of the present invention, the integrated flow channel box is provided with a water inlet pipe and a water outlet pipe.

[0011] Furthermore, in some embodiments of the present invention, the number of the above-mentioned water inlet liquid cooling runners is multiple and is arranged in parallel and spaced apart, the number of the water outlet liquid cooling runners is consistent with the number of the water inlet liquid cooling runners and is arranged in parallel and spaced apart, and the water inlet liquid cooling runner is parallel to the water outlet liquid cooling runner.

[0012] Furthermore, in some embodiments of the present invention, the length of the water inlet liquid cooling runner gradually shortens in the direction approaching the water outlet liquid cooling runner, and the length of the water outlet liquid cooling runner gradually shortens in the direction approaching the water inlet liquid cooling runner.

[0013] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0014] The embodiment of the utility model provides an energy storage box structure with parallel flow channels, comprising an integrated flow channel box, a water inlet collecting box and a water outlet collecting box, wherein a water inlet liquid cooling flow channel and a water outlet liquid cooling flow channel are arranged in the integrated flow channel box, one end of the water inlet liquid cooling flow channel and one end of the water outlet liquid cooling flow channel are both closed, and the other end of the water inlet liquid cooling flow channel is connected with the other end of the water outlet liquid cooling flow channel; the water inlet collecting box and the water outlet collecting box are both arranged on the top of the integrated flow channel box, and the water inlet collecting box and the water outlet collecting box are both opened downward; mounting plates are arranged on the opposite sides of the water inlet collecting box and the opposite sides of the water outlet collecting box; a mounting groove is arranged on the top of the integrated flow channel box, and the mounting plate is embedded in the mounting groove, the top of the mounting plate is flush with the top of the integrated flow channel box, and the mounting plate is welded and fixed to the integrated flow channel box; a water inlet connecting the water inlet collecting box and the water inlet liquid cooling flow channel is arranged on the top of the integrated flow channel box, and a water outlet connecting the water outlet collecting box and the water outlet liquid cooling flow channel is arranged on the top of the integrated flow channel box.

[0015] It can reduce the difficulty and risk of welding, improve the air tightness of the integrated flow channel box, and form a gradient flow channel at the flow channel turning point to improve the uniformity of the flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic structural diagram of an energy storage box structure with parallel flow channels provided in an embodiment of the utility model;

[0018] Figure 2 for Figure 1 The schematic diagram of the structure without the water inlet header box and the water outlet header box;

[0019] Figure 3 for Figure 2 A top view of

[0020] Figure 4 A schematic diagram of the structure of the water inlet header box and the water outlet header box provided in an embodiment of the utility model;

[0021] Figure 5 A partial cross-sectional view of the positions of the water inlet header box and the water outlet header box provided in an embodiment of the utility model;

[0022] Figure 6 A transverse cross-sectional view of an integrated flow channel box provided in an embodiment of the utility model;

[0023] Figure 7 A transverse cross-sectional view of a single parallel flow channel provided in an embodiment of the utility model;

[0024] Figure 8 A partial cross-sectional view of the connection between the water inlet liquid cooling channel and the water outlet liquid cooling channel provided in an embodiment of the utility model.

[0025] Icons: 1-integrated flow channel box; 2-water inlet manifold; 3-water outlet manifold; 4-water inlet liquid cooling flow channel; 5-water outlet liquid cooling flow channel; 6-water inlet; 7-water outlet; 8-water inlet pipe; 9-water outlet pipe; 10-mounting plate; 11-mounting slot; 12-water inlet hole; 13-water outlet hole. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Example

[0031] Please refer to Figure 1-Figure 8 The present embodiment provides a parallel flow channel energy storage box structure, including an integrated flow channel box 1, a water inlet header box 2 and a water outlet header box 3. The integrated flow channel box 1 is provided with a water inlet liquid cooling flow channel 4 and a water outlet liquid cooling flow channel 5. One end of the water inlet liquid cooling flow channel 4 and one end of the water outlet liquid cooling flow channel 5 are both closed, and the other end of the water inlet liquid cooling flow channel 4 is connected to the other end of the water outlet liquid cooling flow channel 5.

[0032] The water inlet collecting box 2 and the water outlet collecting box 3 are both arranged on the top of the integrated flow channel box 1, and the water inlet collecting box 2 and the water outlet collecting box 3 are both open downward; the opposite sides of the water inlet collecting box 2 and the opposite sides of the water outlet collecting box 3 are provided with mounting plates 10; the top of the integrated flow channel box 1 is provided with a mounting groove 11, the mounting plate 10 is embedded in the mounting groove 11, the top of the mounting plate 10 is flush with the top of the integrated flow channel box 1, and the mounting plate 10 is welded and fixed to the integrated flow channel box 1; the top of the integrated flow channel box 1 is provided with a water inlet 6 connecting the water inlet collecting box 2 and the water inlet liquid cooling channel 4, and the top of the integrated flow channel box 1 is provided with a water outlet 7 connecting the water outlet collecting box 3 and the water outlet liquid cooling channel 5.

[0033] The water inlet manifold 2 is provided with a water inlet hole 12, the water outlet manifold 3 is provided with a water outlet hole 13, and the integrated flow channel box 1 is provided with a water inlet pipe 8 and a water outlet pipe 9. The water inlet pipe 8 can be directly connected to the water inlet hole 12, or the water inlet pipe 8 and the water inlet hole 12 can be connected together through a pipeline; the water outlet pipe 9 can be directly connected to the water outlet hole 13, or the water outlet pipe 9 and the water outlet hole 13 can be connected together through a pipeline.

[0034] In actual use, the cooling liquid is input through the water inlet pipe 8, the cooling liquid flows into the water inlet collecting box 2 through the water inlet pipe 8, and then flows into the water inlet liquid cooling channel 4 through the water inlet 6; the cooling liquid flows from the water inlet liquid cooling channel 4 into the water outlet liquid cooling channel 5, and then flows into the water outlet collecting box 3 through the water outlet 7, and finally flows out through the water outlet pipe 9 to form a circulation process.

[0035] Since the top of the mounting plate 10 is flush with the top of the integrated flow channel box 1, the present application lowers the height of the collecting box (generally 1.5-3mm) through a sink to ensure that the height of the mounting plate 10 at the edge of the collecting box is consistent with the surface height of the integrated flow channel box 1, thereby providing a flat welding platform for friction welding and reducing the difficulty of welding. Moreover, the mounting plate 10 of the water inlet collecting box 2 of the present application abuts against the mounting plate 10 of the water outlet collecting box 3, so the edges of the water inlet collecting box 2 and the water outlet collecting box 3 are brought close together, which can reduce the number of welding times, reduce welding costs, further improve welding reliability, and improve the air tightness of the integrated flow channel box 1. When there is a certain distance between the water inlet collecting box 2 and the water outlet collecting box 3, the present application can still complete the welding in one step by filling the welding wire.

[0036] like Figure 1-Figure 8 As shown, in some embodiments of the present invention, the number of the above-mentioned water inlet liquid cooling runners 4 is multiple and arranged in parallel and spaced apart, the number of the water outlet liquid cooling runners 5 is consistent with the number of the water inlet liquid cooling runners 4 and arranged in parallel and spaced apart, and the water inlet liquid cooling runner 4 is parallel to the water outlet liquid cooling runner 5. The length of the water inlet liquid cooling runner 4 gradually shortens along the direction close to the water outlet liquid cooling runner 5, and the length of the water outlet liquid cooling runner 5 gradually shortens along the direction close to the water inlet liquid cooling runner 4.

[0037] In this way, the present application adjusts the height difference of the cooling water flow before and after the turning mouth to alleviate the lower flow velocity of the water flow at the farthest point, and averages the flow velocity of each flow channel through the trapezoidal height flow channel design, thereby improving the uniformity of the flow velocity. Figure 8 As shown, each separate flow channel in the present embodiment includes four water inlet liquid cooling flow channels 4 and four water outlet liquid cooling flow channels 5. The height differences between the outermost water inlet liquid cooling flow channel 4 and the innermost water inlet liquid cooling flow channel 4 are A, B, and C respectively. The specific height difference needs to be determined according to the flow velocity, flow rate, and battery cooling requirements. Generally speaking, A>B≥C.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments and that the present application can be implemented in other specific forms without departing from the spirit or basic features of the present application.

[0039] Therefore, no matter from which point of view, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present application is limited by the attached claims rather than the above description, so it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims in the present application. Any figure mark in the claims should not be regarded as limiting the claims involved. For those skilled in the art, the utility model can have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A parallel flow channel energy storage box structure, characterized in that: It comprises an integrated flow channel box, a water inlet header box and a water outlet header box, wherein the integrated flow channel box is provided with a water inlet liquid cooling flow channel and a water outlet liquid cooling flow channel, one end of the water inlet liquid cooling flow channel and one end of the water outlet liquid cooling flow channel are both closed, and the other end of the water inlet liquid cooling flow channel is connected with the other end of the water outlet liquid cooling flow channel; The water inlet collecting box and the water outlet collecting box are both arranged on the top of the integrated flow channel box, and the water inlet collecting box and the water outlet collecting box are both open downwards; the two opposite sides of the water inlet collecting box and the two opposite sides of the water outlet collecting box are provided with mounting plates; the top of the integrated flow channel box is provided with a mounting groove, the mounting plate is embedded in the mounting groove, the top of the mounting plate is flush with the top of the integrated flow channel box, and the mounting plate is welded and fixed to the integrated flow channel box; the top of the integrated flow channel box is provided with a water inlet connecting the water inlet collecting box and the water inlet liquid cooling flow channel, and the top of the integrated flow channel box is provided with a water outlet connecting the water outlet collecting box and the water outlet liquid cooling flow channel.

2. The energy storage box structure with parallel flow channels according to claim 1, characterized in that: The mounting plate of the water inlet collecting box abuts against the mounting plate of the water outlet collecting box.

3. The energy storage box structure with parallel flow channels according to claim 1, characterized in that: The water inlet header box is provided with a water inlet hole, and the water outlet header box is provided with a water outlet hole.

4. The energy storage box structure with parallel flow channels according to claim 3 is characterized in that: The integrated flow channel box is provided with a water inlet pipe and a water outlet pipe.

5. The energy storage box structure with parallel flow channels according to claim 1, characterized in that: The number of the water inlet liquid cooling runners is multiple and they are arranged in parallel and at intervals. The number of the water outlet liquid cooling runners is consistent with the number of the water inlet liquid cooling runners and they are arranged in parallel and at intervals. The water inlet liquid cooling runner is parallel to the water outlet liquid cooling runner.

6. The energy storage box structure with parallel flow channels according to claim 5, characterized in that: The length of the water inlet liquid cooling channel gradually shortens along the direction approaching the water outlet liquid cooling channel, and the length of the water outlet liquid cooling channel gradually shortens along the direction approaching the water inlet liquid cooling channel.

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