Simplified, rapid and lossless CTP battery pack after-sale device

Abstract

The utility model relates to the technical field of CTP battery pack lossless repair, in particular to a simplified rapid lossless CTP battery pack after-sale device which comprises a battery pack body and a protective plate, a fixed shell is arranged between the battery pack body and the protective plate, a main pipeline and a plurality of heat conduction pipelines are arranged in the shell, and the inlet ends and the outlet ends of the heat conduction pipelines are communicated with the main pipeline. The fixed shell is further provided with a first communicating cylinder and a second communicating cylinder, the first communicating cylinder and the second communicating cylinder are both communicated with the interior of the fixed shell, the inlet end of the fixed shell penetrates through the first communicating cylinder, and the outlet end of the fixed shell penetrates through the second communicating cylinder; when the CTP battery pack is maintained, the heat-conducting medium is filled into the main pipeline and the heat-conducting pipeline, and the heat-conducting structural adhesive in the CTP battery pack reaches a failure temperature, so that a battery cell can be disassembled without damage. And secondly, in daily use, the main pipeline can be connected into an air conditioner cooling circulation system of the CTP battery pack to serve as a cooling pipeline to cool the CTP battery pack.

Description

Technical Field

[0001] The utility model relates to the technical field of non-destructive repair of CTP batteries, in particular to a simplified, fast and non-destructive CTP battery pack after-sales device. Background Art

[0002] With the rapid development of the electric vehicle industry, battery technology, as its core component, is also constantly improving. Among them, Cell to Pack (CTP) technology is an innovative battery manufacturing technology that directly integrates battery cells into the battery pack, eliminating the intermediate link of traditional battery modules, thereby reducing the size and weight of the battery system and improving energy density and manufacturing efficiency.

[0003] CTP technology also has some shortcomings, especially in after-sales service: ① Difficulty in maintenance. CTP battery packs contain multiple cells and are compact. Once a fault occurs, it is difficult to repair or replace a single battery cell, which may require the replacement of the entire battery pack. ② High maintenance cost: The maintenance cost of CTP battery packs is relatively high, because any minor damage may require the replacement of the entire battery module, increasing maintenance costs. ③ Diagnostic complexity: Fault diagnosis of CTP battery packs is relatively complex and requires professional equipment and technical knowledge, which places higher demands on after-sales service personnel. ④ Recycling and reuse: The recycling and reuse process of CTP battery packs is relatively complex, which affects the sustainable development and environmental performance of the battery.

[0004] In summary, although CTP technology has significant advantages in improving battery performance and reducing costs, it still faces challenges in after-sales service. Therefore, it is urgent to develop a simplified, fast, and non-destructive CTP battery pack after-sales device. Utility Model Content

[0005] The purpose of the present utility model is to provide a simplified, quick and non-destructive CTP battery pack after-sales device, which solves the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a simplified, quick and lossless CTP battery pack after-sales device, comprising a battery pack body and a guard plate, a fixed shell is arranged between the battery pack body and the guard plate, the fixed shell consists of an upper shell and a lower shell, the upper shell and the lower shell are fixed by bolts, a main line and a plurality of heat conduction lines are arranged between the upper shell and the lower shell of the fixed shell, the inlet end and the outlet end of the heat conduction line are both connected to the main line, the heat conduction line and the main line are both composed of high-temperature and low-temperature resistant hollow pipes, the fixed shell is further provided with a connecting tube 1 and a connecting tube 2, the connecting tube 1 and the connecting tube 2 are both connected to the fixed shell, the inlet end of the fixed shell passes through the connecting tube 1, and the outlet end of the fixed shell passes through the connecting tube 2.

[0008] Furthermore, the inlet and outlet ends of the heat transfer pipeline are both provided with a first electromagnetic valve, and the inlet and outlet ends of the main pipeline are both provided with a second electromagnetic valve.

[0009] Furthermore, the inlet end of the fixed shell passes through the first connecting tube, and the outlet end of the fixed shell passes through the second connecting tube.

[0010] Furthermore, the pipes of the heat conduction pipeline are arranged in a serpentine shape.

[0011] Furthermore, the pipes of the heat conduction pipeline are arranged in an arcuate shape.

[0012] Furthermore, the pipes of the heat conduction pipeline are arranged in an arc shape.

[0013] Furthermore, the fixed shell and the guard plate are connected by bolts, and the fixed shell is fitted with the battery pack body.

[0014] The utility model has the following beneficial effects:

[0015] In daily use, the utility model opens the electromagnetic valve 1 and the electromagnetic valve 2, so that the main line is connected to the air conditioning cooling circulation system of the CTP battery pack and used as a cooling pipe to cool the CTP battery pack;

[0016] When repairing a CTP battery pack, the utility model opens the electromagnetic valve 1, and then opens all the electromagnetic valves 2 to fill the main pipeline and the heat-conducting pipeline with heat-conducting medium, so that the thermal conductive structural adhesive of the entire CTP battery pack reaches the failure temperature. Alternatively, the electromagnetic valve 1 of one or several heat-conducting pipelines is opened according to the location of the damaged battery cell in the CTP battery pack, so that the thermal conductive structural adhesive used for bonding the failed battery cell reaches the failure temperature.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a structural diagram of the utility model in which the fixed housing is installed below the battery pack body;

[0020] Figure 2 This is a structural diagram of the utility model in which the fixed housing is installed above the battery pack body;

[0021] Figure 3 This is a schematic diagram of the heat transfer pipeline structure of the present utility model;

[0022] Figure 4 This is a schematic diagram of the heat transfer pipeline structure of the present utility model;

[0023] Figure 5 This is a schematic diagram of the heat transfer pipeline structure of the present utility model;

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] In the figure: 1. Fixed shell; 2. Heat transfer pipe; 201. Solenoid valve 1; 3. Battery pack body; 4. Protective plate; 5. Main pipe; 501. Solenoid valve 2; 101. Connecting tube 1; 102. Connecting tube 2. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] See also Figure 1-5As shown, the utility model is a simplified, fast and lossless CTP battery pack after-sales device, including a battery pack main body 3 and a guard plate 4, a fixed shell 1 is arranged between the battery pack main body 3 and the guard plate 4, the fixed shell 1 is composed of an upper shell and a lower shell, the upper shell and the lower shell are fixed by bolts, a main line 5 and a plurality of heat-conducting pipes 2 are arranged between the upper shell and the lower shell of the fixed shell 1, the inlet end and the outlet end of the heat-conducting pipe 2 are both connected to the main line 5, the heat-conducting pipe 2 and the main line 5 are both composed of high-temperature and low-temperature resistant hollow pipes, the fixed shell 1 is also provided with a connecting tube 101 and a connecting tube 2 102, the connecting tube 101 and the connecting tube 2 102 are both connected to the fixed shell 1, the inlet end of the fixed shell 1 passes through the connecting tube 101, and the outlet end of the fixed shell 1 passes through the connecting tube 2 102, the fixed shell 1 and the guard plate 4 are connected by bolts, the fixed shell 1 fits with the battery pack main body 3, the fixed shell The inlet end of 1 passes through the connecting tube 101, and the outlet end of the fixed shell 1 passes through the connecting tube 2 102. In this embodiment, the fixed shell 1 is fixed between the battery pack body 3 and the guard plate 4 by bolts. The guard plate 4 can be an upper guard plate 4 above the battery pack body 3 or a lower guard plate 4 below the battery pack body 3. In daily use, the main line 5 can be connected to the air conditioning cooling circulation system of the CTP battery pack and used as a cooling line to cool the CTP battery pack. When the CTP battery pack is repaired, the main line 5 is filled with a heat-conducting medium of suitable temperature, and the heat-conducting medium flows into the heat-conducting line 2, so that the heat-conducting line 2 transfers energy to the battery pack body 3, causing the heat-conducting structural adhesive in the battery pack body 3 to lose its adhesion performance. The heat-conducting structural adhesive is used to bond the battery cell to the battery pack shell. The loss of adhesion of the heat-conducting structural adhesive facilitates the disassembly of the battery cell in the battery pack body 3 to prevent the battery cell from being damaged during disassembly. The pipeline can withstand -300 to 200°C.

[0029] Among them, the inlet and outlet ends of the heat-conducting pipe 2 are both provided with electromagnetic valve 1 201, and the inlet and outlet ends of the main pipe 5 are both provided with electromagnetic valve 2 501. In this embodiment, when repairing the CTP battery pack, the electromagnetic valve 1 201 is opened, and then all the electromagnetic valves 2 501 can be opened to fill the main pipe 5 and the heat-conducting pipe 2 with heat-conducting medium, so that the thermal conductive structural adhesive of the entire CTP battery pack reaches the failure temperature, or the electromagnetic valve 1 of one or several heat-conducting pipes 2 is opened according to the location of the damaged battery cell in the CTP battery pack, so that the thermal conductive structural adhesive used to bond the failed battery cell reaches the failure temperature. The number and location of the heat-conducting pipes 2 are customized according to the number and location of the battery cell modules in the CTP battery pack.

[0030] Among them, such as Figure 5As shown, the pipes of the heat transfer pipe 2 are arranged in a serpentine shape. The advantage of the serpentine pipe arrangement in this embodiment is that it can efficiently dissipate heat when connected to the air-conditioning cooling circulation system. The serpentine pipe adopts a serial flow channel, has a large contact area, and has high heat conduction efficiency. In addition, the serpentine layout also contributes to modular design and simplifies the installation process.

[0031] Among them, such as Figure 3 As shown, the pipes of the heat conducting pipeline 2 are arranged in an arcuate shape. In this embodiment, the heat conducting pipes arranged in an arcuate shape have a large heat conduction area and greatly improve the heat transfer efficiency. In addition, the arcuate layout can effectively reduce pressure loss because the turbulence generated when the fluid flows in the curved pipe can promote better heat exchange. At the same time, this layout is also conducive to modular design.

[0032] Among them, such as Figure 4 As shown, the pipes of the heat conduction pipeline are arranged in an arc shape. The advantage of this pipeline arrangement is that the heat conduction rate is high, and the arc-shaped tubular structure increases the heat dissipation area and has a significant heat dissipation effect. It can better meet the heat dissipation requirements of power equipment, avoid the "air blockage" phenomenon, and ensure the uniformity of the heat dissipation effect. At the same time, the heat conduction pipeline 2 can be customized according to the specific shape of the battery pack, thereby optimizing space utilization.

[0033] It can be understood that, firstly, in daily use, the present invention can connect the main line 5 to the air-conditioning cooling circulation system of the CTP battery pack and use it as a cooling line to cool the CTP battery pack. Secondly, when repairing the CTP battery pack, a heat-conducting medium is filled into the main line 5 and the heat-conducting line 2, and the heat-conducting structural adhesive in the CTP battery pack reaches the failure temperature, so that the battery cell can be disassembled without damage.

[0034] Specific implementation steps: During daily use of the CTP battery pack, the main line 5 can be connected to the air conditioning cooling circulation system of the CTP battery pack and used as a cooling line to cool the CTP battery pack. When the battery pack needs to be repaired after sales, the staff will fill the heat transfer medium into the main line 5. The heat transfer medium flows from the main line 5 into the heat transfer pipe 2. The heat transfer pipe 2 transfers energy to the battery pack body 3, so that the heat transfer structural adhesive used to bond the battery cells in the battery pack body 3 reaches the failure temperature, and the heat transfer structural adhesive loses its adhesion performance, so that the battery cells can be removed from the battery pack body 3 without damage. The number and design of the heat transfer pipes 2 The position of the heat transfer medium is customized according to the number and position of the battery cell modules in the CTP battery pack. The inlet and outlet ends of each heat transfer pipe 2 are provided with an electromagnetic valve 201. After the heat transfer medium is filled into the main pipe 5, the staff can open the electromagnetic valve 201 of the heat transfer pipe 2 corresponding to the damaged battery cell module according to the position of the damaged battery cell, so that the heat transfer medium in the main pipe 5 is targetedly filled into one or several heat transfer pipes 2 according to the position of the battery cell to be removed, without affecting the battery cells on the remaining heat transfer pipes 2, facilitating the targeted disassembly of the failed battery cell without the need to disassemble the battery cells of the entire battery pack.

[0035] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0036] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A simplified, quick and non-destructive CTP battery pack after-sales device, comprising a battery pack body (3) and a protective plate (4), characterized in that: A fixed shell (1) is provided between the battery pack body (3) and the guard plate (4), the fixed shell (1) consisting of an upper shell and a lower shell, the upper shell and the lower shell being fixed by bolts, a main pipe (5) and a plurality of heat-conducting pipes (2) are provided between the upper shell and the lower shell of the fixed shell (1), the inlet end and the outlet end of the heat-conducting pipe (2) are both connected to the main pipe (5), the heat-conducting pipe (2) and the main pipe (5) are both composed of high-temperature and low-temperature resistant hollow pipes, the fixed shell (1) is further provided with a connecting tube 1 (101) and a connecting tube 2 (102), the connecting tube 1 (101) and the connecting tube 2 (102) are both connected to the interior of the fixed shell (1), the inlet end of the fixed shell (1) passes through the connecting tube 1 (101), and the outlet end of the fixed shell (1) passes through the connecting tube 2 (102).

2. The simplified, fast, and lossless CTP battery pack after-sales device according to claim 1, characterized in that: The inlet and outlet ends of the heat transfer pipeline (2) are both provided with electromagnetic valve 1 (201), and the inlet and outlet ends of the main pipeline (5) are both provided with electromagnetic valve 2 (501).

3. The simplified, fast, and lossless CTP battery pack after-sales device according to claim 1, characterized in that: The inlet end of the fixed shell (1) passes through the first connecting tube (101), and the outlet end of the fixed shell (1) passes through the second connecting tube (102).

4. The simplified, fast, and lossless CTP battery pack after-sales device according to claim 1, characterized in that: The pipes of the heat conduction pipeline (2) are arranged in a serpentine shape.

5. The simplified, fast, and lossless CTP battery pack after-sales device according to claim 1, characterized in that: The pipes of the heat conduction pipeline (2) are arranged in an arcuate shape.

6. The simplified, fast, and lossless CTP battery pack after-sales device according to claim 1, characterized in that: The pipes of the heat conduction pipeline (2) are arranged in an arc shape.

7. The simplified, fast, and lossless CTP battery pack after-sales device according to claim 1, characterized in that: The fixed shell (1) and the guard plate (4) are connected via bolts, and the fixed shell (1) is fitted with the battery pack main body (3).

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