Gluing tool and gluing apparatus for battery module for repair

Abstract

The present disclosure relates to a glue injection tool and a glue injection apparatus for a battery module under repair. The battery module has an open repair site formed by a cell, a cooling plate, and a stretching plate. The glue injection tool includes a main body and a seal. The main body has a first abutting portion, a second abutting portion, and a main working portion. In a longitudinal extension direction of the main body, a glue injection portion is provided in a middle portion of the main working portion, and an exhaust observation hole is provided on both sides of the glue injection portion and adjacent to two longitudinal end portion of the main working portion. The seal includes a first sealing portion abutting at least an inner surface of the first abutting portion, a second sealing portion abutting at least an inner surface of the second abutting portion, and a stop sealing portion at an end portion, such that the glue injection tool can sealably surround the repair site by the seal when the glue injection tool is placed at the repair site. The present disclosure not only achieves good repair of the battery module under repair, but also prevents glue leakage to avoid waste or cause new waste.

Description

Technical Field

[0001] This disclosure relates to the field of batteries, and more specifically to a glue injection tool for reworked battery modules and a glue injection device including the glue injection tool. Background Technology

[0002] Battery modules used in electric vehicles are often scrapped due to problems with the cell insulation varnish, resulting in significant waste and economic losses. Currently, there is no rework process for battery modules with problematic cell insulation varnish; these modules are typically simply scrapped. Therefore, a rework process needs to be designed to repair battery modules, and the repaired modules need to be sealed with adhesive to isolate the failed parts from the external environment. This necessitates the development of adhesive application tools and equipment for applying adhesive to repaired battery modules. Utility Model Content

[0003] To address the aforementioned technical problems, this disclosure provides an adhesive injection tool and equipment for reworked battery modules, enabling the correct and simple injection of adhesive into the repaired portion of the battery module without leakage.

[0004] In one aspect, this disclosure provides a glue injection tool for a reworked battery module. The battery module has an open repair area formed by a cell, a cooling plate, and a stretching plate. The glue injection tool includes an elongated body and a seal attached to an inner surface of the body. The body has a first abutment portion for abutting the cooling plate, a second abutment portion for abutting the stretching plate, and a main working portion for connecting the first and second abutment portions. In the longitudinal extension direction of the body, a glue injection portion is disposed in the middle portion of the main working portion, and venting observation holes are disposed on both sides of the glue injection portion and adjacent to two longitudinal end portions of the main working portion. The seal includes a first sealing portion abutting at least the inner surface of the first abutment portion, a second sealing portion abutting at least the inner surface of the second abutment portion, and a stop sealing portion connecting the first and second sealing portions at an end, such that when the glue injection tool is placed on the repair area, the glue injection tool can sealably surround the repair area by the seal.

[0005] Therefore, by using a glue injection tool, the failed part contained in the part to be repaired can be isolated from the external environment to achieve insulation, without the glue leaking and adhering to the outer surface of the cooling plate and stretching plate of the battery module.

[0006] In one or more embodiments, the inner surface of the first abutment portion is provided with at least one first sealing member attachment portion for attaching to the first sealing portion, and the inner surface of the second abutment portion is provided with at least one second sealing member attachment portion for attaching to the second sealing portion.

[0007] In one or more embodiments, each first seal attachment and each second seal attachment includes at least two mating structures arranged in a group.

[0008] In one or more embodiments, the insertion structure of the first sealing attachment includes two teeth extending parallel to the longitudinal extension direction of the body, and the insertion structure of the second sealing attachment includes three teeth extending parallel to the longitudinal extension direction of the body.

[0009] Therefore, the arrangement of the first sealing attachment and the second sealing attachment helps to firmly attach the body and the seal together to ensure good sealing performance.

[0010] In one or more embodiments, the main working part has a planar section arranged obliquely relative to the first abutment and the second abutment, the glue injection part and two venting observation holes are disposed on the planar section; and / or, the stop sealing part is disposed abutting against the inner surface of the two longitudinal end portions of the planar section and protruding inward.

[0011] This allows for the installation of an adhesive injection section, two venting and inspection holes, and a stop-seal section at the main working part. The stop-seal section provides a good seal for the area to be repaired, preventing adhesive leakage.

[0012] In one or more embodiments, the main working part further includes a first connecting section between the first abutting portion and the planar section, and a second connecting section between the second abutting portion and the planar section. The inner surface of the first connecting section has a protrusion extending parallel to the longitudinal extension direction of the body; and / or the inner surface of the second connecting section has a recess extending parallel to the longitudinal extension direction of the body.

[0013] Therefore, the protrusion facilitates a close fit between the first connecting section and the arc-shaped stepped portion of the cooling plate of the battery module. The recess is suitable for a close fit between the second connecting section and the stretching plate of the battery module.

[0014] In one or more embodiments, the seal is integrally formed, and the first abutting portion, the second abutting portion, and the main working portion of the body are integrally formed.

[0015] Therefore, the one-piece structure facilitates the creation of dispensing tools with simple structure and good sealing performance.

[0016] In one or more embodiments, the diameter of the exhaust observation hole is less than or equal to 1.0 mm.

[0017] Therefore, the diameter of the venting observation hole is designed to allow the adhesive to be injected into the first and second gaps of the area to be repaired before it overflows from the venting observation hole.

[0018] In one or more embodiments, the adhesive injection portion is configured to protrude outward from the planar segment of the main working portion and has a conical inner surface.

[0019] Therefore, the structure of the glue injection section facilitates the smooth and close insertion of the glue gun into the glue injection section to inject pressure glue.

[0020] On the other hand, this disclosure provides a glue-applying apparatus for reworked battery modules. The glue-applying apparatus includes: a glue-applying tool according to this disclosure; a pressure-applying component configured to apply pressure to a first abutment portion and a second abutment portion of the body of the glue-applying tool; and a support component configured to support the pressure-applying component.

[0021] Therefore, by using glue injection equipment, glue can be easily and correctly injected into the repaired parts of the battery module without leakage.

[0022] In one or more embodiments, the pressure application assembly includes a first sub-pressure application assembly and a second sub-pressure application assembly disposed opposite to each other in the longitudinal direction of the battery module, wherein the first sub-pressure application assembly and the second sub-pressure application assembly are respectively assigned to two parts to be repaired on the same side of the battery module.

[0023] Therefore, pressure can be applied to at least one dispensing tool placed on the same side of the battery module to perform dispensing repair on the reworked battery module.

[0024] In one or more embodiments, the dispensing equipment further includes a support structure for supporting the battery module.

[0025] Therefore, by using the glue injection equipment according to this disclosure, it is convenient to keep the reworked battery module in the rework position for repair. Attached Figure Description

[0026] This disclosure will be more readily understood through the following detailed description taken in conjunction with the accompanying drawings, wherein like reference numerals denote like elements. The drawings are schematic and not restrictive. Elements in the drawings are not necessarily shown to scale; for example, elements may be enlarged for illustrative purposes or may be scaled down to maintain clarity and ease of understanding. In the drawings:

[0027] Figure 1 The diagram schematically shows a top view of a portion of the refurbished battery module;

[0028] Figure 2 It shows along Figure 1 A cross-sectional view of line BB;

[0029] Figure 3 It shows the result of Figure 2An enlarged view of the portion indicated by circle D in the image;

[0030] Figure 4 A schematic diagram illustrating the placement of a glue-applying tool according to the present disclosure on a reworked battery module is shown.

[0031] Figure 5 A perspective view of the dispensing tool according to the present disclosure is schematically shown;

[0032] Figure 6 Schematic illustration of the work by Figure 5 An enlarged view of the portion indicated by circle E in the image;

[0033] Figure 7 Another perspective view of the dispensing tool according to this disclosure is schematically shown;

[0034] Figure 8 Schematic illustration of the work by Figure 7 An enlarged view of the portion indicated by circle F in the image;

[0035] Figure 9 A perspective view of a dispensing apparatus according to the present disclosure is schematically shown;

[0036] Figure 10 Schematic illustration Figure 9 A three-dimensional diagram of a portion of the structure; and

[0037] Figure 11 Schematic illustration of the work by Figure 9 An enlarged view of the portion indicated by circle G in the diagram. Detailed Implementation

[0038] The present disclosure will now be described with reference to the accompanying drawings, which illustrate several embodiments of the present disclosure. However, it should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below. The embodiments described below are intended to make the disclosure more complete and to fully illustrate the scope of protection of the present disclosure to those skilled in the art. It should be understood that in all the drawings, the same reference numerals denote the same elements.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. For the sake of brevity and / or clarity, well-known functions or structures may not be described in detail. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The terms “comprising” and “having”, and any derivatives thereof, in the specification and claims of this disclosure are intended to cover non-exclusive inclusion.

[0040] The terms “part,” “component,” and “section” can have a dual meaning, referring to a single part or multiple parts.

[0041] In the description of the embodiments of this disclosure, the terms "first," "second," etc., are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. Furthermore, the term "first component" itself does not necessarily imply the existence of a "second component," and the term "second component" itself does not necessarily imply the existence of a "first component."

[0042] In the description of the embodiments disclosed herein, "a plurality of" means two or more, unless otherwise expressly defined.

[0043] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this disclosure. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0044] In the description of the embodiments of this disclosure, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent these three cases: A exists alone, A and B exist simultaneously, and B exists alone.

[0045] In the description of the embodiments of this disclosure, the terms "inner", "outer", "vertical", "parallel", "longitudinal", "lateral", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this disclosure.

[0046] In the description of the embodiments of this disclosure, unless otherwise expressly specified and limited, the terms "attachment," "connection," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0047] Figures 1 to 3 The top view, cross-sectional view and enlarged view of the reworked battery module are schematically shown to illustrate the location of the repairable part RL and / or the failed part FL of the reworked battery module.

[0048] The battery module M addressed in this article is rectangular in shape. Battery module M may include a battery cell CC, a cooling plate CP, a pair of tension plates SP positioned opposite each other on the sides, and a pair of pressure plates positioned opposite each other at the ends. Multiple rectangular battery cells are arranged side-by-side and coated with cell insulating varnish on their outer surfaces to form the battery cell CC. The cooling plate CP is then positioned on the bottom surface of the battery cell CC, while the tension plates SP are positioned on opposite sides of the battery cell CC, and the pressure plates are positioned at opposite ends of the battery cell CC, thus constituting battery module M. Figure 2 and Figure 3 An inverted battery module M (i.e., cooling plate CP facing upwards) is shown for easy repair. This battery module M has a first gap G1 (e.g., approximately 1.0 mm) between the cell CC and the cooling plate CP, and a second gap G2 (e.g., approximately 1.4-1.5 mm) between the cell CC and the stretching plate SP, with the rounded corner of the cell CC exposed. Because the corner of the cell CC is exposed, the cell insulation varnish at that location is easily damaged (and thus a failure point FL may appear). In other words, the failure point FL of the battery module M is typically located at the corner. Therefore, the failure point FL of the battery module can be contained within the open space formed by the cell CC, the cooling plate CP, and the stretching plate SP (referred to herein as the repair area RL to be glued).

[0049] In practice, battery modules with problems in the cell insulation varnish are directly scrapped, resulting in significant waste. Therefore, it is desirable to repair the failed part FL of the battery module to make the best use of it. This repair can be achieved by injecting adhesive into the aforementioned open space (i.e., the part to be repaired RL) to isolate the failed part FL from the external environment and achieve insulation, but it is undesirable for the adhesive to leak and adhere to the outer surface of the cooling plate CP and the tension plate SP of the battery module.

[0050] The existing technology does not have a glue injection process for repairing battery modules with problems in the cell insulation paint, and therefore does not mention the glue injection tools used for repairing battery modules.

[0051] Based on this technological state and practical needs, this disclosure proposes the following concept: A glue injection tool comprising an elongated body and a seal attached to the inner surface of the body. The glue injection tool is designed to engage with the outer contours of the cooling plate CP and the stretching plate SP when positioned at the repair site RL, enabling it to sealably surround the repair site RL via the seal. In other words, the glue injection tool provides an encapsulation cavity for sealingly surrounding the repair site RL. Furthermore, the body has a glue injection section and venting observation holes located on both sides of the glue injection section and adjacent to two longitudinal ends of the body. Thus, the glue injection tool with this configuration can inject pressurized glue into the encapsulation cavity by inserting a glue gun into the glue injection section. The glue flows from here to a first gap G1 between the battery cell CC and the cooling plate CP, to a second gap G2 between the battery cell CC and the stretching plate SP, and to the failure site FL, thereby isolating the failure site FL from the external environment to achieve insulation. During adhesive injection, the gas inside the encapsulation cavity can be released through the venting observation hole to facilitate adhesive injection, and the completion of adhesive injection can be determined by observing adhesive overflowing from the venting observation hole. This not only achieves good insulation by isolating the failed part FL from the external environment but also prevents adhesive leakage to avoid waste. If adhesive leaks and adheres to the outer surfaces of the cooling plate CP and the stretching plate SP, it will create new scrap or require additional steps to remove the leaked adhesive, thus leading to economic losses.

[0052] Specifically, refer to Figure 5-8 The glue injection tool 1 for reworked battery modules according to this disclosure may include an elongated body 10 and a seal 40 attached to the inner surface of the body to provide an encapsulation cavity for sealingly surrounding the part RL to be repaired. A glue injection section 20 and two venting observation holes 30 are provided on the body.

[0053] The main body 10 may have a first abutting portion 11 for abutting the cooling plate CP, a second abutting portion 12 for abutting the stretching plate SP, and a main working portion 13 for connecting the first abutting portion 11 and the second abutting portion 12. The first abutting portion 11, the second abutting portion 12, and the main working portion 13 are integrally formed. Typically, the first abutting portion 11 is planar and horizontally arranged, and the second abutting portion 12 is planar and vertically arranged. The main working portion 13 may have: a planar segment 133 arranged obliquely relative to the first abutting portion 11 and the second abutting portion 12; a first connecting segment 131 of a curved surface located between the first abutting portion 11 and the planar segment 133; and a second connecting segment 132 of a curved surface located between the second abutting portion 12 and the planar segment 133. The inner curved surface of the first connecting segment 131 is adapted to fit the outer contour of the outer peripheral edge of the cooling plate CP, and the inner curved surface of the second connecting segment 132 is adapted to fit snugly against the relevant part of the stretching plate SP, thereby preventing glue leakage.

[0054] In the longitudinal extension direction L of the main body, a glue injection section 20 (e.g., a glue injection hole) is provided in the middle portion of the main working part 13, and at least one venting observation hole 30 is provided on each side of the glue injection section 20. The at least one venting observation hole 30 is also provided adjacent to the two longitudinal end portions of the main working part. The glue injection section 20 and the venting observation hole 30 may be provided on the main working part 13, specifically on the planar section 133 of the main working part 13. The glue injection section 20 may be a hole penetrating the middle portion of the main working part 13 to provide a glue injection inlet. (Reference) Figure 5 The glue injection section 20 can be configured to protrude outward from the main working section 13 and have a conical inner surface to facilitate smooth and close insertion of the glue gun into the glue injection section 20. Specifically, the glue injection section 20 can protrude outward from the center of the planar section of the main working section 13. Venting observation holes 30 can be provided on both sides of the glue injection section 20 and adjacent to the two end portions of the main working section 13 in the longitudinal extension direction of the main body, so as to determine that the glue has sufficiently filled the repair area RL of the battery module M when glue overflows from the two venting observation holes 30. Figure 5 In the example shown, two venting observation holes 30 are provided on both sides of the glue injection section 20 in the longitudinal extension direction of the main body, and are equidistant from the glue injection section 20 and closer to the two end portions of the main working part 13. The arrangement of the two venting observation holes 30 facilitates the discharge of gas from the venting observation holes, which is beneficial to the smooth injection of glue. On the other hand, the glue injection operation can be judged by observing glue overflowing from the venting observation holes.

[0055] The diameter of the venting observation hole can be within 1.0 mm. The diameter of the venting observation hole should be smaller than the size of the aforementioned first gap G1 and second gap G2, so that the adhesive can be injected into the first gap G1 and second gap G2 first, and then the adhesive will overflow from the venting observation hole 30.

[0056] refer to Figure 3 The outer peripheral edge of the cooling plate CP is a stepped portion S with an arc-shaped transition surface. For this purpose, the inner surface of the first connecting section 131 of the main working part 13 has a protrusion 1312 extending parallel to the longitudinal extension direction L of the main body. The shape of the protrusion 1312 matches the shape of the stepped portion S with an arc-shaped transition surface of the cooling plate CP to provide a close fit between them. The inner surface of the second connecting section 132 of the main working part 13 has a recess 1322 extending parallel to the longitudinal extension direction L of the main body. The recess 1322 is adapted to fit snugly against the stretching plate SP.

[0057] The seal 40 can be attached to the inner surface of the body 10. For example, the seal 40 can be attached to the first abutment portion 11 and the second abutment portion 12 of the body by adhesive application. However, in practice, adhesion may not be sufficient to ensure a firm seal. Therefore, refer to... Figure 6 The inner surface of the first abutment portion 11 of the main body 10 is provided with at least one first sealing attachment portion 112, and the inner surface of the second abutment portion 12 is provided with at least one second sealing attachment portion 122, for securely attaching the main body 10 to the sealing element 40. The number of insertion structures can be one or more to ensure a sufficient seal. See also... Figure 6 The diagram shows two first seal attachment portions 112 and two second seal attachment portions 122. Each first seal attachment portion 112 and each second seal attachment portion 122 may have at least two interlocking structures arranged in a group to ensure a secure and reliable attachment to the seal 40 and to ensure a reliable seal between them. For example, the interlocking structures may be in the form of teeth. In such a case... Figure 6 In the example shown, each first seal attachment 112 consists of a group of two teeth extending parallel to the longitudinal extension direction L of the body 10. Each second seal attachment 122 consists of a group of three teeth extending parallel to the longitudinal extension direction L of the body 10. In practice, the number of teeth can be two, three, or more, as long as a more secure and reliable attachment to the seal 40 is ensured. Since the second abutment 12 is in a vertical direction to contact the stretch plate SP of the battery module during the glue application operation, each second seal attachment 122 can have more teeth than each first seal attachment 112 to ensure a more secure and reliable attachment of the seal.

[0058] During operation, after applying pressure to the first abutting portion 11 and the second abutting portion 12 of the main body 10, a greatly enhanced multi-seal is provided between the first sealing attachment portion 112 and the second sealing attachment portion 122 and the sealing element, as well as between the sealing element and the cooling plate and stretching plate of the battery module, which can better prevent glue overflow.

[0059] The seal 40 may be integrally formed. The seal 40 may be made of sealing foam that is breathable but not adhesive-permeable. The seal may include a first sealing portion 42 abutting the inner surface of the first abutting portion 11, a second sealing portion 44 abutting the inner surface of the second abutting portion 12, and a stop seal portion 46 connecting the first sealing portion 42 and the second sealing portion 44 at both ends. The stop seal portion 46 has a protruding structure that matches the shape of the corner portion of the battery module.

[0060] refer to Figure 8After the seal 40 is attached to the body 10, the first sealing portion 42 can be attached to the inner surface of the first abutment portion 11 and to the inner surface of the first connecting section 131 of the main working surface 13; the second sealing portion 44 can be attached to the inner surface of the second abutment portion 12 and to the inner surface of the second connecting section 132 of the main working surface 13; the stop sealing portion 46 is configured to abut against the inner surface of the two end portions of the planar portion 133 and protrude inward; the stop sealing portion 46 protrudes inward perpendicularly away from the body 1 relative to the longitudinal extension direction L of the body 1, so as to help seal the opening near the corner when the glue injection tool 1 is placed at the repair area RL, thereby providing an encapsulation cavity between the glue injection tool 1 and the repair area RL to prevent glue overflow. In this way, the glue injection tool according to the present disclosure can accurately inject glue into the part to be repaired in a simple and easy manner, thereby isolating the failed part FL from the external environment, while preventing glue from leaking onto the upper surface of the cooling plate CP, the outer surface of the extension SP, and the surrounding environment.

[0061] Each dispensing tool 1 of this disclosure can repair a portion of the repairable area RL of a reworked battery module M. Typically, the repairable area RL of the battery module M is located on either side relative to the longitudinal extension direction L of the battery module (see [reference]). Figure 10 Each side requires two injection tools to be used simultaneously or in stages to complete the repair.

[0062] This disclosure also relates to a glue-applying apparatus 100 for reworked battery modules. The glue-applying apparatus 100 may include at least the glue-applying tool 1, the pressure-applying assembly 110, and the support assembly 120 according to this disclosure. The glue-applying apparatus 100 may also include a support assembly, a drive assembly, a lifting assembly, a traveling assembly, etc., which will not be described in detail here.

[0063] This article focuses on describing the structure related to operating the dispensing tool 1. (References) Figure 9-11 The pressure application assembly 110 may include at least a pressure application portion for applying pressure to the first abutment portion 11 and the second abutment portion 12 of the body 10 of the dispensing tool 1, and an operating portion for moving the pressure application portion closer to and further away from the dispensing tool 1. The pressure application assembly 110 may be configured to apply pressure to the first abutment portion 11 and the second abutment portion 12 of the body 10 of the dispensing tool 1 to ensure a sufficient seal of the encapsulation cavity. (Reference) Figure 9 and Figure 10 The pressure application assembly 110 may include a first sub-pressure application assembly 1102 and a second sub-pressure application assembly 1104 disposed opposite to each other relative to the longitudinal direction (or longitudinal extension direction L) of the battery module, wherein each sub-pressure application assembly may be assigned to two parts to be repaired on the same side. This allows for simultaneous pressure application to two glue injection tools placed on the same side of the battery module. Alternatively, the two glue injection tools on the same side may be pressured one at a time. Figure 10 In the example shown, the first sub-pressure component 1102 applies pressure simultaneously to the first abutment portion 11 and the second abutment portion 12 of the body 10 of the dispensing tool 1.

[0064] refer to Figure 9 and Figure 11 The bearing component 120 can be configured to support the pressure application component 110. The dispensing equipment 100 may also include a support structure for supporting the reworked battery module M, which facilitates placing the reworked battery module in the rework position for repair.

[0065] Thus, when the battery module M is repaired using the glue injection equipment 100, the battery module M is supported on the support structure of the glue injection equipment 100 with the cooling plate CP facing upward. The first sub-pressure assembly 1102 and the second sub-pressure assembly 1104 are located on opposite sides relative to the longitudinal direction of the battery module M, so as to apply pressure to the first abutting part 11 and the second abutting part 12 of the body 10 of one or two glue injection tools on the same side as needed.

[0066] In use, the battery module M is placed on the glue injection equipment 100, and then the glue injection tool 1 according to this disclosure is assembled at the part RL to be repaired on the battery module. Pressure is then applied to the first abutment portion 11 and the second abutment portion 12 of the body 10 of the glue injection tool 1 via the pressure application component 110 to ensure a sufficient seal of the encapsulation cavity. Then, a glue gun is inserted into the glue injection section 20 to inject glue into the encapsulation cavity at the required pressure, allowing the glue to flow into the gap between the cell CC and the cooling plate CP, into the gap between the cell CC and the stretching plate SP, and into the failed part FL, thereby isolating the failed part RL from the external environment to achieve insulation. The glue injection operation is considered complete when glue overflows from the vent observation hole 20. Then, while waiting for the glue to solidify (e.g., between 30 and 90 minutes after the glue injection operation), the pressure application component 110 and the glue injection tool 1 are removed before the glue completely solidifies, thus completing the repair of the battery module M.

[0067] It should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way.

Claims

1. A glue-applying tool for reworked battery modules, characterized in that, The battery module (M) has an open repairable area (RL) formed by a cell (CC), a cooling plate (CP), and a stretching plate (SP), and the glue injection tool (1) includes: An elongated body (10) has a first abutment portion (11) for abutting the cooling plate, a second abutment portion (12) for abutting the stretching plate, and a main working portion (13) for connecting the first and second abutment portions; in the longitudinal extension direction (L) of the body, an adhesive injection portion (20) is provided in the middle portion of the main working portion (13), and venting observation holes (30) are provided on both sides of the adhesive injection portion (20) and adjacent to the two longitudinal end portions of the main working portion (13); and A seal (40) is attached to the inner surface of the body (10). The seal includes a first sealing portion (42) that abuts at least the inner surface of the first abutment portion (11), a second sealing portion (44) that abuts at least the inner surface of the second abutment portion (12), and a stop sealing portion (46) that connects the first sealing portion and the second sealing portion at an end, such that when the glue injection tool (1) is placed at the part to be repaired (RL), the glue injection tool can sealably surround the part to be repaired (RL) by the seal.

2. The dispensing tool according to claim 1, characterized in that, The inner surface of the first abutment portion (11) is provided with at least one first sealing member attachment portion (112) for attaching to the first sealing portion (42), and the inner surface of the second abutment portion (12) is provided with at least one second sealing member attachment portion (122) for attaching to the second sealing portion (44).

3. The dispensing tool according to claim 2, characterized in that, Each first seal attachment (112) and each second seal attachment (122) includes at least two plug-in structures arranged in a group.

4. The dispensing tool according to claim 3, characterized in that, The insertion structure of the first sealing attachment (112) includes two teeth extending in a longitudinal extension direction (L) parallel to the body, and the insertion structure of the second sealing attachment (122) includes three teeth extending in a longitudinal extension direction (L) parallel to the body.

5. The dispensing tool according to any one of claims 1-4, characterized in that, The main working part (13) has a planar section (133) arranged at an angle relative to the first abutment part (11) and the second abutment part (12), the glue injection part (20) and two exhaust observation holes (30) are provided on the planar section (133); and / or, the stop sealing part (46) is provided to abut against the inner surface of the two longitudinal end portions of the planar section (133) and protrude inward.

6. The dispensing tool according to claim 5, characterized in that, The main working part (13) also has a first connecting section (131) between the first abutting part (11) and the planar section (133) and a second connecting section (132) between the second abutting part (12) and the planar section (133). The inner surface of the first connecting section (131) has a protrusion (1312) extending parallel to the longitudinal extension direction (L) of the body; and / or the inner surface of the second connecting section (132) has a recess (1322) extending parallel to the longitudinal extension direction (L) of the body.

7. The dispensing tool according to any one of claims 1-4, characterized in that, The sealing element (40) is integrally formed, and the first contact portion (11), the second contact portion (12), and the main working portion (13) of the main body are integrally formed.

8. The dispensing tool according to any one of claims 1-4, characterized in that, The diameter of the exhaust observation hole (30) is less than or equal to 1.0 mm.

9. The dispensing tool according to claim 5, characterized in that, The glue injection section (20) is configured to protrude outward from the planar section (133) of the main working section (13) and has a conical inner surface.

10. A glue-applying device for reworked battery modules, characterized in that, The dispensing equipment (100) includes: The dispensing tool (1) according to any one of claims 1-9; A pressure-applying assembly (110) configured to apply pressure to a first abutment (11) and a second abutment (12) of the body of the dispensing tool (1); and A support component (120) is configured to support the pressure application component (110).

11. The dispensing equipment according to claim 10, characterized in that, The pressure application assembly (110) includes a first sub-pressure application assembly (1102) and a second sub-pressure application assembly (1104) disposed opposite to each other in the longitudinal direction of the battery module. The first sub-pressure application assembly and the second sub-pressure application assembly are respectively assigned to two parts to be repaired on the same side of the battery module.

12. The dispensing equipment according to claim 10 or 11, characterized in that, The glue-injection equipment also includes a support structure for supporting the battery module.

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