Integrated lithium battery assembly

Abstract

The utility model discloses an integrated lithium battery assembly which comprises a constant temperature assembly which is arranged on the periphery of a plurality of single batteries on an integrated lithium battery body and is used for constant temperature adjustment of the integrated lithium battery body; the constant-temperature assembly comprises a plurality of heat conducting plates, the plurality of heat conducting plates are vertically arranged in parallel in the middle of each single battery at intervals, and the two heat conducting plates are horizontally arranged in parallel and correspondingly arranged at the upper end and the lower end of each single battery, so that the plurality of heat conducting plates conduct heat on the plurality of single batteries in a wrapping manner. The constant temperature assembly is arranged in the integrated lithium battery body, so that a plurality of heat conduction plates on the constant temperature assembly conduct heat conduction and cooling on a plurality of single batteries mounted in the integrated lithium battery body in a wrapping manner, the integrated lithium battery is kept in a constant temperature state, and the temperature conditions of the batteries of the lithium battery are consistent; and therefore, the consistency of use parameters of the battery is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to an integrated lithium battery assembly. Background Art

[0002] With the development of lithium battery technology, the storage capacity of lithium batteries has been continuously enhanced, the endurance of new energy vehicles equipped with lithium batteries has continued to increase, and consumer acceptance has gradually increased, so the market share of new energy vehicles has gradually increased. Due to the structural setting of the battery pack in the integrated lithium battery, the temperature of the upper charging and discharging position of the battery cell is higher than the bottom base position. In order to ensure the output consistency of the integrated lithium battery, a constant temperature component needs to be set on the lithium battery to ensure the consistency of the temperature conditions between the various cells of the lithium battery, thereby ensuring the consistency of the battery usage parameters.

[0003] The existing integrated lithium battery assembly (an integrated lithium battery assembly with application number 202210913316.4) provides heat conduction plates at the upper and lower ends of the battery pack of the integrated lithium battery, so as to keep the temperature of different positions of the battery pack of the integrated lithium battery balanced, thereby maintaining the consistency of the current output of the lithium battery. However, there is no heat conduction plate between several battery cells inside the integrated lithium battery, and the heat conduction channels on the heat conduction plate are evenly distributed, and the heat conduction channels are not arranged in a sparse and dense manner according to the heating parts of the battery cells, so that the heat exchange temperature is not uniform, affecting the consistency of the temperature conditions between the various batteries of the lithium battery, thereby affecting the stability of the battery usage parameters. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide an integrated lithium battery assembly for solving the technical problem that no heat conduction plate is arranged between several battery cells inside the existing integrated lithium battery, and the heat conduction channels on the heat conduction plate are evenly distributed, and the heat conduction channels are not arranged in a sparse and dense manner according to the heat generating parts of the battery cells, so that the heat exchange temperature is not uniform enough, affecting the consistency of the temperature conditions between the various batteries of the lithium battery, thereby affecting the stability of the battery usage parameters.

[0005] According to the technical solution provided in the embodiment of the present application, an integrated lithium battery assembly includes a constant temperature assembly installed around a plurality of single cells on the integrated lithium battery body and used for constant temperature regulation of the integrated lithium battery body;

[0006] The constant temperature assembly comprises a plurality of heat conducting plates, which are arranged vertically and spaced apart between the individual cells, and two heat conducting plates are arranged horizontally and correspondingly at the upper and lower ends of the individual cells, so that the heat conducting plates wrap around the individual cells to conduct heat;

[0007] The heat conducting plate has a rectangular structure and is provided with two heat conducting channels with similar structures. The two heat conducting channels are arranged densely and sparsely from outside to inside along the horizontal direction, so that the smaller spacing is in contact with the charging and discharging part of the single battery, and the larger spacing is in contact with the base of the single battery, so as to reduce the energy consumption of constant temperature regulation.

[0008] Furthermore, the heat conduction channel has an S-shaped structure.

[0009] Furthermore, each of the heat conduction plates is provided with a corresponding liquid inlet, and each of the liquid inlets is connected to a corresponding liquid inlet pipe, several of the liquid inlet pipes are connected to a liquid infusion pipe, and the liquid infusion pipe is fixedly connected to the outlet of the coolant tank, so that the coolant tank can input the coolant into each of the heat conduction plates.

[0010] Furthermore, each of the heat conduction plates is also provided with a corresponding drain port, and each of the drain ports is fixedly connected to a corresponding drain pipe, so that the drain pipe inputs the coolant after heat exchange into the coolant tank for recovery.

[0011] Furthermore, the coolant tank is arranged outside the integrated lithium battery body.

[0012] In summary, the beneficial effects of this application are:

[0013] 1. By setting a constant temperature component inside the integrated lithium battery body, a plurality of heat conducting plates on the constant temperature component wrap a plurality of single cells installed inside the integrated lithium battery body to conduct heat and cool down, so that the integrated lithium battery maintains a constant temperature state, so that the temperature conditions of each battery of the lithium battery are consistent, thereby ensuring the consistency of battery use parameters;

[0014] Second, by setting the heat conduction channel on the heat conduction plate into an S-shaped structure and sparsely arranging the heat conduction channel from the outside to the inside, the smaller spacing is in contact with the charging and discharging point of the single battery, so that the heat generated by the charging and discharging of the single battery can be conducted in time, and the larger spacing is in contact with the base of the single battery, reducing heat exchange at the place where no heat is generated, thereby reducing the energy consumption of constant temperature regulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3This is a schematic diagram of the structure of the heat conducting plate of the utility model.

[0019] Numbers in the figure: constant temperature component -100, heat conduction plate -110, heat conduction channel -111, liquid inlet pipe -120, liquid infusion pipe -130, coolant tank -140, liquid discharge pipe -150, integrated lithium battery body -200, single battery -210. DETAILED DESCRIPTION

[0020] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] An integrated lithium battery assembly, the structure of which is as follows Figure 1-Figure 3 As shown, it includes a thermostatic component 100, which is installed around a plurality of single cells 210 on an integrated lithium battery body 200, and is used for thermostatic regulation of the integrated lithium battery body 200; the thermostatic component 100 includes a plurality of heat conducting plates 110, which are vertically arranged and installed in the middle of each single cell 210 at intervals, and two heat conducting plates 110 are horizontally arranged and installed correspondingly at the upper and lower ends of the single cell 210, so that the plurality of heat conducting plates 110 wrap and conduct heat to the plurality of single cells 210; the heat conducting plate 110 has a rectangular structure, and two heat conducting channels 111 with similar structures are arranged on the heat conducting plate 110, and the two heat conducting channels 111 are arranged correspondingly, and the two heat conducting channels 111 are arranged densely from outside to inside along the horizontal direction, so that the smaller spacing is in contact with the charging and discharging portion of the single cell 210, and the larger spacing is in contact with the base of the single cell 210, so as to reduce the energy consumption of thermostatic regulation.

[0023] During the charging and discharging process of the integrated lithium battery, in order to improve the capacitance stability between each single battery 210 of the integrated lithium battery, it is necessary to perform constant temperature regulation on the heating part of each single battery 210, by arranging heat conducting plates 110 in the middle, top and bottom of each single battery 210 inside the integrated lithium battery body 200, so that a plurality of heat conducting plates 110 wrap each single battery 210 inside the integrated lithium battery body 200, and on each heat conducting plate 110, an S-shaped heat conducting channel 111 with a sparse and dense arrangement is arranged, so that the smaller spacing is in contact with the charging and discharging part of the single battery 210, so that the heat generated by the charging and discharging of the single battery 210 can be conducted in time, and the larger spacing is in contact with the base of the single battery 210, and the heat exchange is reduced at the place where no heat is generated, thereby reducing the energy consumption of constant temperature regulation, improving the consistency of temperature conditions between each single battery 210 of the integrated lithium battery, and thus improving the stability of the use parameters of the integrated lithium battery.

[0024] As a preferred embodiment, please refer to Figure 3 The heat conduction channel 111 has an S-shaped structure, so that the coolant can flow evenly through the heat conduction plate 110 , thereby improving the heat conduction efficiency of the heat conduction plate 110 .

[0025] As a preferred embodiment, please refer to Figure 1 and Figure 2 Each heat conducting plate 110 is provided with a corresponding liquid inlet, and each liquid inlet is connected to a corresponding liquid inlet pipe 120. Several liquid inlet pipes 120 are connected to the liquid infusion pipe 130, and the liquid infusion pipe 130 is fixedly connected to the outlet of the coolant tank 140, so that the coolant tank 140 can input the coolant into each heat conducting plate 110.

[0026] As a preferred embodiment, please refer to Figure 2 and Figure 3 Each heat conducting plate 110 is also provided with a corresponding drain port, and each drain port is fixedly connected to a corresponding drain pipe 150 so that the drain pipe 150 inputs the coolant after heat exchange into the coolant tank 140 for recovery.

[0027] As a preferred embodiment, please refer to Figure 1 The coolant tank 140 is disposed outside the integrated lithium battery body 200 so that the coolant tank 140 can discharge the heat after heat conduction in time without affecting the charging and discharging of the integrated lithium battery body 200.

[0028] The working principle of the integrated lithium battery assembly of the utility model is:

[0029] During the charging and discharging process of the integrated lithium battery, in order to improve the capacitance stability between the individual cells 210 of the integrated lithium battery, it is necessary to perform constant temperature regulation on the heating parts of the individual cells 210. By arranging heat conducting plates 110 in the middle, top and bottom of each individual cell 210 inside the integrated lithium battery body 200, so that a plurality of heat conducting plates 110 wrap each individual cell 210 inside the integrated lithium battery body 200, and sparsely arranged S-shaped heat conducting channels 111 are arranged on each heat conducting plate 110, so that the smaller spacing is in contact with the charging and discharging part of the individual cell 210, so that the heat generated by the charging and discharging of the individual cell 210 can be conducted in time, and the larger spacing is in contact with the base of the individual cell 210. Heat exchange is reduced at places where heat is not generated, thereby reducing the energy consumption of constant temperature regulation, and the coolant tank 140 on the constant temperature component 100 is arranged on the outside of the integrated lithium battery body 200, and the liquid outlet on the coolant tank 140 is fixedly connected to each liquid inlet pipe 120 through the infusion tube 130, so that the coolant in the coolant tank 140 enters the heat conduction channel 111 on each heat conduction plate 110, thereby exporting the temperature generated during the charging and discharging process of the single cells 210 arranged in parallel and at intervals in the integrated lithium battery body 200, and adjusting the internal temperature of the integrated lithium battery body 200 to keep it at a constant temperature, thereby ensuring the consistency of temperature conditions between each single cell 210 of the integrated lithium battery, thereby improving the stability of the use parameters of the integrated lithium battery.

[0030] The beneficial effects of the integrated lithium battery assembly of the utility model are:

[0031] 1. By arranging a constant temperature component 100 inside the integrated lithium battery body 200, a plurality of heat conducting plates 110 on the constant temperature component 100 wrap a plurality of single cells 210 installed inside the integrated lithium battery body 200 to conduct heat and cool down, so that the integrated lithium battery maintains a constant temperature state, so that the temperature conditions of each battery of the lithium battery are consistent, thereby ensuring the consistency of battery use parameters;

[0032] Second, the heat conduction channels 111 on the heat conduction plate 110 are arranged in an S-shaped structure, and the heat conduction channels 111 are arranged densely from the outside to the inside, so that the smaller spacing is in contact with the charging and discharging portion of the single battery 210, so that the heat generated by the charging and discharging of the single battery 210 can be conducted in time, and the larger spacing is in contact with the base of the single battery 210, reducing heat exchange at the place where no heat is generated, thereby reducing the energy consumption of constant temperature regulation.

[0033] The above description is only an explanation of the preferred embodiments of the present application and the technical principles and other schemes used. At the same time, the scope of the utility model involved in the present application is not limited to the technical scheme formed by a specific combination of the above technical features, but also includes other technical schemes formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) to form a technical scheme.

Claims

1. An integrated lithium battery assembly, characterized by: It comprises a constant temperature component (100) which is installed around a plurality of single cells (210) on an integrated lithium battery body (200) and is used for constant temperature regulation of the integrated lithium battery body (200); The constant temperature assembly (100) comprises a plurality of heat conducting plates (110), wherein the plurality of heat conducting plates (110) are arranged vertically in parallel and installed at intervals between the individual cells (210), and two of the heat conducting plates (110) are arranged horizontally in parallel and installed correspondingly at the upper and lower ends of the individual cells (210), so that the plurality of heat conducting plates (110) wrap around the plurality of individual cells (210) to conduct heat; The heat conducting plate (110) has a rectangular structure, and two heat conducting channels (111) with similar structures are arranged on the heat conducting plate (110). The two heat conducting channels (111) are arranged in a sparse and dense manner from outside to inside along the horizontal direction, so that the smaller spacing is in contact with the charging and discharging portion of the single battery (210), and the larger spacing is in contact with the base of the single battery (210), so as to reduce the energy consumption of constant temperature regulation.

2. The integrated lithium battery assembly according to claim 1, characterized in that: The heat conduction channel (111) has an S-shaped structure.

3. The integrated lithium battery assembly according to claim 1, characterized in that: Each of the heat conducting plates (110) is provided with a corresponding liquid inlet, and each of the liquid inlets is connected to a corresponding liquid inlet pipe (120), a plurality of the liquid inlet pipes (120) are connected to a liquid infusion pipe (130), and the liquid infusion pipe (130) is fixedly connected to an outlet of a coolant tank (140), so that the coolant tank (140) can input the coolant into each of the heat conducting plates (110).

4. The integrated lithium battery assembly according to claim 3, characterized in that: Each of the heat conduction plates (110) is also provided with a corresponding drain port, and each of the drain ports is fixedly connected to a corresponding drain pipe (150), so that the drain pipe (150) inputs the coolant after heat exchange into the coolant tank (140) for recovery.

5. The integrated lithium battery assembly according to claim 3, characterized in that: The coolant tank (140) is arranged outside the integrated lithium battery body (200).

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