Auxiliary tool for heating film installation and battery processing device

Abstract

The utility model provides an auxiliary tool for installing a heating film and a battery processing device, the auxiliary tool comprises a supporting part, the supporting part is provided with a plurality of air bags which are arranged on a battery unit at intervals along a first direction, the air bags are connected with an external air supply part, and the air bags have a first state of inflation expansion and a second state of exhaust contraction. The battery unit is provided with an exposed part exposed out of the air bag; when the air bag is in the first state, the heating film is connected with the exposed part. According to the auxiliary tool disclosed by the utility model, the plurality of air bags on the supporting part are in the first inflating state, and the heating film is connected with the exposed part of the battery unit, so that the deformation allowance can be reserved for the heating film, and even if the battery unit is used, the heating film and the battery unit are kept in a better connecting state; and the air bag can be taken out from the space between the battery unit and the heating film through the contraction of the air bag after the air bag is exhausted, so that the battery pack has relatively good operation convenience.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to an auxiliary tooling for installing a heating film; at the same time, this utility model also relates to a battery processing device equipped with the auxiliary tooling. Background Technology

[0002] Low or high temperatures can significantly impact the performance of new energy vehicle batteries. Low temperatures not only affect the driving range of electric vehicles but also charging speed and driving speed. Currently, battery heating systems primarily involve attaching a heating film to the battery surface for heating. The power of the heating film or the temperature of the coolant is adjusted by reading the current battery temperature for control.

[0003] During battery use, the internal resistance increases with the number of charge / discharge cycles, varying usage environments, and battery aging, leading to increased heat generation. The elevated internal temperature of the battery cell and the inability to expel internal gas ultimately cause the battery to expand and deform to varying degrees. In batteries using heating films, this aging process can cause the heating film to separate from the battery and deform. The deformed heating film can then experience short circuits and dry burning, significantly increasing the risk of thermal runaway and the probability of module failure. Utility Model Content

[0004] In view of this, the present invention aims to provide an auxiliary tooling for installing heating film, so as to extend the service life of heating film.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] An auxiliary tooling for installing a heating film is disposed between a battery cell and a heating film to assist in the installation of the heating film on the battery cell;

[0007] The auxiliary tooling includes a support portion, which has a plurality of air bags spaced apart on the battery unit along a first direction. The air bags are connected to an external air supply unit. The air bags have a first state of inflation and expansion, and a second state of deflation and contraction. The battery unit has an exposed portion exposed to the air bags.

[0008] When the air bag is in the first state, the heating film is connected to the exposed portion.

[0009] Furthermore, each of the air bags is elongated in shape and extends along the second direction;

[0010] The second direction is perpendicular to the first direction.

[0011] Furthermore, it also includes a connecting portion disposed at one end of the plurality of air bags and connecting the plurality of air bags together;

[0012] The connecting part is provided with a ventilation channel extending along its own length direction, and an air inlet and outlet for communicating with the external air supply unit;

[0013] Each of the air bags is connected to the air passage through a connecting port on the connecting portion.

[0014] Furthermore, the connecting portion is made of a rigid material; and / or,

[0015] The connecting portion extends along a second direction perpendicular to the first direction.

[0016] Furthermore, the connecting portion is provided with a protruding ring arranged circumferentially along the communication opening, the air bag has a connecting portion sleeved on the protruding ring, and the connecting portion is provided with a connector for fastening the connecting portion on the protruding ring.

[0017] Furthermore, the outer periphery of the convex ring is provided with a groove arranged along its own circumference, the connecting member is a retaining spring embedded in the groove, and the connecting part is clamped between the groove wall and the retaining spring.

[0018] Furthermore, the outer peripheral wall of the connecting portion is provided with size markings spaced at intervals along its own length.

[0019] Furthermore, the air bag is made of nylon fabric.

[0020] Compared with the prior art, this utility model has the following advantages:

[0021] The auxiliary tooling for installing the heating film described in this utility model, through multiple air bags on the support part in the first inflated state, connects the heating film with the exposed part of the battery unit, which can reserve deformation margin for the heating film. Even as the battery unit is used, the heating film maintains a good connection with the battery unit, thereby helping to extend the service life of the heating film and thus improving the performance of the battery unit. Furthermore, by deflating and shrinking the air bags, it is easy to remove the air bags from between the battery unit and the heating film, which has good operational convenience.

[0022] Furthermore, the elongated shape of the airbag, extending along a second direction perpendicular to the first direction, enhances its support for the heating film, thereby improving the allowance for deformation of the heating film. Connecting multiple airbags together via a connecting section, along with the air passage within the connecting section, facilitates the placement and removal of auxiliary tooling and improves the airbag's intake and exhaust efficiency. The simple structure of the connecting and supporting sections makes them easy to arrange and implement. The use of a rigid material for the connecting section facilitates the placement and removal of auxiliary tooling, making operation easier; the extension of the connecting section along the second direction facilitates processing and shaping, resulting in better performance.

[0023] Furthermore, by incorporating a convex ring and allowing the connecting portion to fit over it, and then securing the connecting portion to the convex ring with a connector, the connection between the air bag and the connecting portion is facilitated. The combination of a groove and a retaining spring further enhances the strength and reliability of the connection between the air bag and the connecting portion. A marking section on the connecting portion facilitates the acquisition of the specifications of the auxiliary tooling and the spacing between adjacent air bags. The air bag is made of nylon fabric, which offers good durability, thereby extending the service life of the auxiliary tooling.

[0024] In addition, another objective of this utility model is to provide a battery processing apparatus, including the auxiliary tooling described above.

[0025] The battery processing device described in this utility model, by setting the above-mentioned auxiliary tooling, facilitates the installation of the heating film on the battery cell and extends the service life of the heating film. Attached Figure Description

[0026] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0027] Figure 1 This is a schematic diagram of the auxiliary tooling described in the embodiment of the present invention in its use state;

[0028] Figure 2 This is a schematic diagram of the auxiliary tooling described in an embodiment of the present utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the convex ring, groove and retaining spring described in the embodiment of this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Battery unit; 2. Connecting part; 201. Protruding ring; 202. Air inlet / outlet; 203. Snap ring; 204. Groove; 3. Support part; 301. Air bag. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0033] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "back" appear, indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] This embodiment relates to an auxiliary tooling for installing a heating film, which is disposed between the battery unit 1 and the heating film to assist in the installation of the heating film on the battery unit 1.

[0036] In terms of overall structure, the auxiliary tooling includes a support portion 3, which has multiple air bags 301 spaced apart on the battery unit 1 along a first direction. The air bags 301 are connected to an external air supply unit. The air bags 301 have a first inflated state and a second deflated state. The battery unit 1 has an exposed portion exposed to the air bags 301. When each air bag 301 is in the first state, the heating film is connected to the exposed portion.

[0037] The auxiliary tooling for installing the heating film described in this embodiment, through the multiple air bags 301 on the support part 3 in the first inflated state, connects the heating film to the exposed part of the battery unit 1, which can reserve deformation margin for the heating film. Even with the use of the battery unit 1, the heating film maintains a good connection with the battery unit 1, thereby helping to extend the service life of the heating film and thus improving the performance of the battery unit 1. Furthermore, by deflating and shrinking the air bags 301, it is easy to remove the air bags 301 from between the battery unit 1 and the heating film, which has good operational convenience.

[0038] Based on the above overview, the structure of the auxiliary tooling in the usage state described in this embodiment is as follows: Figure 1 As shown, an exemplary structure of the auxiliary tooling is as follows: Figure 2 As shown in the diagram, battery cell 1 includes a plurality of batteries stacked together along a first direction, which can be the length direction or the width direction of battery cell 1. As an example, [example shown in the diagram]. Figure 1As shown in the figure, the first direction is specifically indicated by the arrow. In this embodiment, the heating film can be disposed on any surface of the battery cell 1. Taking the heating film disposed on the top surface of the battery cell 1 as an example, the following description will be provided.

[0039] In a preferred embodiment, each air bag 301 is an elongated strip extending along a second direction, perpendicular to the first direction. The length of the air bag 301 is adapted to the length of the battery. This arrangement improves the support effect of the air bag 301 on the heating film, thereby improving the allowance for deformation of the heating film. The allowance for deformation is specifically determined by the height of the air bag 301 and the dimensions of its cross-section; the higher the air bag 301 and the larger its cross-sectional area, the greater the allowance for deformation.

[0040] Due to the arrangement of the air bags 301, the exposed portion of the battery unit 1 consists of multiple adhesive portions separated by multiple air bags 301, and a blank portion located outside the air bags 301 that is not adhesively connected to the battery unit 1. Along the first direction, the adhesive portions and blank portions are alternately arranged. The difference between the width of the blank portion and the spacing between two adjacent adhesive portions is specifically a allowance for deformation. In practice, the specifications of the air bags 301 are determined according to usage requirements, as long as the usage requirements are met.

[0041] To further improve the performance of auxiliary tooling, such as Figure 1 and Figure 2 As shown, the auxiliary tooling also includes a connecting portion 2 located at one end of a plurality of air bags 301 and connecting the plurality of air bags 301 together. The connecting portion 2 is provided with a ventilation channel extending along its own length direction, and an air inlet / outlet 202 for communicating with an external air supply unit; each air bag 301 is connected to the ventilation channel through the communication port on the connecting portion 2.

[0042] Here, multiple air bags 301 are connected together by the connecting part 2, and the air passage inside the connecting part 2 facilitates the placement and removal of the auxiliary tooling, and also improves the air intake and exhaust effect of the air bags 301. Furthermore, the structure of the connecting part 2 and the supporting part 3 is simple and easy to arrange and implement. In use, the connecting part 2 is located outside the battery section and the heating film to ensure the effectiveness of the auxiliary tooling.

[0043] In practice, the connecting part 2 is made of a rigid material, which facilitates the placement and removal of auxiliary tooling and makes operation easier. For example, the connecting part 2 can be made of plastic or metal, which has a simple structure and is easy to process and shape. Furthermore, the connecting part 2 extends along a second direction perpendicular to the first direction. This also facilitates processing and shaping and improves the performance.

[0044] To facilitate the connection between the air bag 301 and the connecting part 2, such as Figures 1 to 3 As shown, a protruding ring 201 is provided on the connecting portion 2 along the circumference of the communication opening. The air bag 301 has a connecting portion 2 sleeved on the protruding ring 201, and the connecting portion 2 is provided with a connector for fastening the connecting portion 2 to the protruding ring 201. Here, by providing the protruding ring 201, allowing the connecting portion 2 to be sleeved on the protruding ring 201, and fixing the connecting portion 2 to the protruding ring 201 by the connector, the connection between the air bag 301 and the connecting portion 2 is facilitated.

[0045] In specific implementation, the outer periphery of the convex ring 201 is provided with a groove 204 arranged along its own circumference, and the connecting member is a retaining spring 203 embedded in the groove 204. The connecting part 2 is clamped between the groove wall of the groove 204 and the retaining spring 203. Here, the cooperation between the groove 204 and the retaining spring 203 helps to further improve the connection strength and reliability between the air bag 301 and the connecting part 2.

[0046] Additionally, dimension markings can be provided on the outer peripheral wall of the connecting portion 2 at intervals along its length. By providing markings on the connecting portion 2, it is easier to obtain the specifications of the auxiliary tooling and the spacing between adjacent air bags 301. For example, the dimension markings can specifically be scale lines, which have a simple structure, are easy to manufacture, and have good performance.

[0047] The air bag 301 in this embodiment is made of nylon fabric. It has good durability, thus extending the service life of the auxiliary tooling. Furthermore, nylon fabric, as the most commonly used material for air bags 301, has high strength and toughness, and can withstand the instantaneous expansion of gas without rupturing. In addition, the air bag 301 made of nylon fabric has excellent flexibility, facilitating switching between the first and second states during inflation and deflation.

[0048] In this embodiment, the auxiliary tooling is used by first placing the support portion 3 on the top surface of the battery unit 1, then inflating the connecting portion 2 through the external air supply, causing the air bag 301 to be in an inflated first state. The heating film is placed on the support portion 3, and the adhesive portion of the heating film is bonded to the exposed portion of the battery unit 1. Next, the gas in the air bag 301 is released, causing the air bag 301 to be in a contracted second state. Finally, the support portion 3 is removed from the heating film and battery unit 1 by holding the connecting portion 2. This auxiliary tooling is not only simple in structure but also easy to operate, possessing good practicality.

[0049] In addition, this embodiment also relates to a battery processing apparatus, including the auxiliary tooling described above.

[0050] The battery processing apparatus described in this embodiment, by setting the above auxiliary tooling, facilitates the installation of the heating film on the battery cell 1 and extends the service life of the heating film.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary tooling for installing a heating film, disposed between a battery cell and a heating film, to assist in the installation of the heating film on the battery cell; characterized in that: The auxiliary tooling includes a support portion, which has a plurality of air bags spaced apart on the battery unit along a first direction. The air bags are connected to an external air supply unit. The air bags have a first state of inflation and expansion, and a second state of deflation and contraction. The battery unit has an exposed portion exposed to the air bags. When the air bag is in the first state, the heating film is connected to the exposed portion.

2. The auxiliary tooling for installing the heating film according to claim 1, characterized in that: Each of the air bags is a long strip extending along the second direction; The second direction is perpendicular to the first direction.

3. The auxiliary tooling for installing the heating film according to claim 1, characterized in that: It also includes a connecting portion disposed at one end of the plurality of air bags and connecting the plurality of air bags together; The connecting part is provided with a ventilation channel extending along its own length direction, and an air inlet and outlet for communicating with the external air supply unit; Each of the air bags is connected to the air passage through a connecting port on the connecting portion.

4. The auxiliary tooling for installing the heating film according to claim 3, characterized in that: The connecting portion is made of a rigid material; and / or, The connecting portion extends along a second direction perpendicular to the first direction.

5. The auxiliary tooling for installing the heating film according to claim 4, characterized in that: The connecting portion is provided with a protruding ring arranged circumferentially along the communication opening. The air bag has a connecting portion sleeved on the protruding ring, and the connecting portion is provided with a connector for fastening the connecting portion on the protruding ring.

6. The auxiliary tooling for installing the heating film according to claim 5, characterized in that: The outer periphery of the convex ring is provided with a groove arranged along its own circumference, and the connecting member is a retaining spring embedded in the groove. The connecting part is clamped between the groove wall and the retaining spring.

7. The auxiliary tooling for installing the heating film according to claim 3, characterized in that: The outer peripheral wall of the connecting part is provided with size markings spaced along its own length.

8. The auxiliary tooling for installing the heating film according to any one of claims 1 to 7, characterized in that: The air bag is made of nylon fabric.

9. A battery processing apparatus, characterized in that: Includes the auxiliary tooling as described in any one of claims 1 to 8.

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