Jig for sintering glass seal of cap assembly

Abstract

The utility model discloses a jig for glass seal sintering of a cap assembly, and belongs to the technical field of battery tools. A T-shaped groove is formed in the jig for glass seal sintering of the cap assembly, the T-shaped groove at least penetrates through one side face of the jig in the first direction, and the T-shaped groove is used for limiting the portion where a limiting part and a connecting part of a pole column are installed. The T-shaped groove comprises a large groove part and a small groove part communicated with the large groove part, the small groove part penetrates through the upper surface of the jig, the distance H between the groove bottom surface of the large groove part and the upper surface of the jig is not larger than the maximum height of a limiting part of a pole column in the good product cap assembly protruding out of the cover plate, and the depth H1 of the large groove part is not smaller than the thickness D1 of the limiting part. According to the design, the exposed height of the pole is mainly influenced by H, the size factor influencing the exposed height of the pole is reduced, the risk that the exposed height of the pole is out of tolerance is reduced, the glass seal sintering process of cap assemblies of different models can be adapted, the production cost can be reduced, and the production period can be shortened.

Description

Technical Field

[0001] The present application relates to the technical field of battery tooling, and in particular to a jig for glass-sealing and sintering cap components. Background Art

[0002] In related technologies, such as Figure 1 As shown in the figure, jigs used for glass-sealing sintering of cylindrical battery cap assemblies mostly employ a forward-mounted T-shaped terminal assembly method. This assembly method significantly influences the exposed height h of the T-shaped terminal by the length h1 of the T-shaped terminal, the thickness h2 of the cover plate, and the depth h3 of the jig hole. When h is too large, the height dimension of the cylindrical battery is significantly affected, making assembly of the cylindrical battery inconvenient.

[0003] However, for cap components of different sizes, in order to ensure that the h dimension meets the requirements, it is usually necessary to design multiple types of fixtures. This not only increases production costs, but also adds the process of selecting appropriate fixtures in the glass sealing sintering process of the cap component, thereby extending the production cycle.

[0004] This section provides background information related to the present application which is not necessarily prior art. Utility Model Content

[0005] The purpose of this application is to solve or at least alleviate some or all of the above-mentioned problems. To this end, the purpose of this application is to provide a jig for glass-sealing and sintering cap components, which can reduce the risk of out-of-tolerance of the exposed height of the pole and can be adapted to the glass-sealing and sintering process of cap components of different sizes, thereby reducing production costs and shortening the production cycle.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] The present application provides a jig for glass sealing and sintering a cap assembly, wherein the cap assembly includes a cover plate and a pole, wherein the cover plate has a through hole, and the pole includes a limit portion and a connecting portion connected to the limit portion, wherein the longitudinal cross-section of the pole is T-shaped, and the connecting portion can be inserted into the through hole;

[0008] The fixture is provided with a T-slot, the T-slot at least passing through one side surface of the fixture in the first direction, and the T-slot is used for limiting the installation of the limiting portion and the connecting portion;

[0009] The T-slot includes a large slot portion and a small slot portion connected to the large slot portion, the small slot portion passes through the upper surface of the jig, the distance H between the bottom surface of the large slot portion and the upper surface of the jig is not greater than the maximum height of the limiting portion of the pole in the qualified cap assembly protruding from the cover plate, and the depth H1 of the large slot portion is not less than the thickness D1 of the limiting portion.

[0010] As an optional solution of the jig used for glass sealing and sintering of the cap assembly, the outer surface of the cover plate has a positioning groove, and the upper surface of the jig has a positioning protrusion that matches the positioning groove.

[0011] As an optional solution for the jig for glass sealing and sintering the cap assembly, the height of the positioning protrusion is H2, and the depth of the positioning groove is H3, wherein 0.5 mm ≤ H3 - H2 ≤ 2 mm.

[0012] As an optional solution of the jig for glass-sealing and sintering the cap assembly, the positioning protrusion and the positioning groove are both circular in shape.

[0013] As an optional solution for the jig for glass sealing and sintering the cap assembly, the length L1 of the large groove portion in the second direction is greater than the length L2 of the limiting portion in the second direction, wherein the second direction is perpendicular to the first direction.

[0014] As an optional solution of the jig for glass sealing and sintering of the cap assembly, the difference between the length L1 of the large groove portion in the second direction and the length L2 of the limiting portion in the second direction is less than or equal to 3 mm.

[0015] As an optional solution for the jig used for glass sealing and sintering of the cap assembly, the jig is a graphite jig.

[0016] As an optional solution for the jig for glass sealing and sintering of the cap assembly, there are multiple T-slots, and the multiple T-slots are arranged on the jig at intervals along a second direction, wherein the second direction is perpendicular to the first direction.

[0017] As an optional solution of the jig for glass-sealing and sintering the cap assembly, the sizes of the T-slots are all the same.

[0018] As an optional solution of the jig for glass-sealing and sintering the cap assembly, the sizes of the T-slots are not all the same.

[0019] The beneficial effects of this application are:

[0020] The jig provided in the present application for glass-sealing and sintering a cap assembly has a T-slot formed on the jig. The T-slot extends through at least one side surface of the jig in a first direction. The T-slot is used to positionally install the limiting portion and the connecting portion of the pole. The T-slot includes a large slot portion and a small slot portion connected to the large slot portion. The small slot portion extends through the upper surface of the jig. The distance H between the bottom surface of the large slot portion and the upper surface of the jig is no greater than the maximum height of the limiting portion of the pole protruding from the cover plate in a qualified cap assembly, and the depth H1 of the large slot portion is no less than the thickness D1 of the limiting portion. This design makes the exposed height of the pole primarily affected by H, reduces the dimensional factors that affect the exposed height of the pole, and helps reduce the risk of the exposed height of the pole exceeding the tolerance. It can also adapt to the glass-sealing and sintering processes of different types of cap assemblies, thereby reducing production costs and shortening the production cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present application and these drawings without any creative work.

[0022] Figure 1 A cross-sectional schematic diagram of a fixture and a cap assembly in the related art is shown.

[0023] Figure 2 A schematic diagram of the partial structure of a fixture provided in an embodiment of the present application is shown.

[0024] Figure 3 Shown Figure 2 Schematic cross-sectional view of the assembled middle fixture and cap assembly.

[0025] Figure 4 A cross-sectional schematic diagram of a fixture with multiple T-slots provided in an embodiment of the present application is shown.

[0026] Reference numerals:

[0027] 100, cover plate; 101, through hole; 102, positioning groove; 200, pole; 201, limiting portion; 202, connecting portion;

[0028] 1. Fixture; 11. T-slot; 111. Large slot; 112. Small slot; 12. Positioning protrusion. DETAILED DESCRIPTION

[0029] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the foregoing drawings.

[0030] In this application, the terms "comprises," "includes," "has," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0031] In this application, the term "and / or" describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this application generally indicates that the related objects are in an "and / or" relationship.

[0032] In this application, the terms "connect," "combine," "couple," and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without an intermediary, and an indirect connection refers to two parts or components being connected to at least one intermediary, with the two parts or components being connected via the intermediary. Furthermore, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.

[0033] In this application, it will be understood by those skilled in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerance caused by manufacturing, assembly, use, etc. associated with a specific value. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0034] In this application, it will be understood by those skilled in the art that the function performed by an assembly can be performed by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one assembly, or a combination of multiple parts.

[0035] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to the other element "upper" or "lower", but also be indirectly connected to the other element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, below can include directly below, lower left, lower right, lower front and lower back, etc.

[0036] Figure 1 FIG1 shows a cross-sectional schematic diagram of a fixture and a cap assembly in the related art. Figure 1 As shown, the cap assembly includes a cover plate 100 and a terminal 200. The cover plate 100 has a through hole 101. The terminal 200 includes a stopper 201 and a connecting portion 202 connected to the stopper 201. The terminal 200 has a T-shaped longitudinal cross-section, and the connecting portion 202 can be inserted into the through hole 101. This cap assembly can be used for cylindrical batteries. The cover plate 100 is a stainless steel cover plate, and the terminal 200 can be a copper terminal or an aluminum terminal.

[0037] For the cap assembly, Figure 1 As shown, the glass-sealed sintering jig of the related art mainly adopts the assembly method of the positive assembly of the pole 200. This assembly method makes the exposed height dimension h of the pole 200 greatly affected by the length h1 of the pole 200, the thickness h2 of the cover plate 100, and the hole depth h3 of the jig. When the dimension h is too large, it has a great impact on the height dimension of the cylindrical battery, which is inconvenient for the assembly of the cylindrical battery. However, for cap assemblies of different sizes, in order to ensure that the dimension h meets the requirements, it is usually necessary to design multiple types of jigs, which not only increases the production cost, but also adds the process of selecting an adaptive jig in the glass-sealed sintering process of the cap assembly, thereby extending the production cycle.

[0038] In order to solve the above problems, the present application provides a new glass-sealed sintering jig, which can reduce the risk of out-of-tolerance of the exposed height of the pole and can be adapted to the glass-sealed sintering process of different types of cap assemblies, which is conducive to reducing production costs and shortening production cycles.

[0039] Figure 2 A schematic diagram of the partial structure of the fixture 1 provided in an embodiment of the present application is shown. Figure 3 Shown Figure 2 A cross-sectional view of the middle fixture 1 and the cap assembly after assembly. Figures 2 to 3As shown, the jig 1 is provided with a T-slot 11, which extends through at least one side surface of the jig 1 in a first direction. The T-slot 11 is used to positionally install the limiting portion 201 and the connecting portion 202. The T-slot 11 includes a large slot 111 and a small slot 112 connected to the large slot 111. The small slot 112 extends through the upper surface of the jig 1. The distance H between the bottom surface of the large slot 111 and the upper surface of the jig 1 is no greater than the maximum height of the limiting portion 201 of the pole 200 protruding from the cover plate 100 in a qualified cap assembly, and the depth H1 of the large slot 111 is no less than the thickness D1 of the limiting portion 201. This design ensures that the exposed height of the pole 200 is primarily affected by H, reducing the dimensional factors that affect the exposed height of the pole 200, thereby reducing the risk of the exposed height of the pole 200 exceeding the tolerance. Furthermore, the design is adaptable to the glass sealing sintering processes of different cap assembly models, thereby reducing production costs and shortening the production cycle.

[0040] In this embodiment, the fixture 1 is a graphite fixture. Graphite has the advantages of low density, high specific surface area, good electrical conductivity and chemical stability, which can reduce the impact of the fixture 1 on the glass sealing sintering process.

[0041] The length L1 of the large groove portion 111 in the second direction is greater than the length L2 of the limiting portion 201 in the second direction, where the second direction is perpendicular to the first direction. This arrangement facilitates the installation of the limiting portion 201 of the pole 200 into the large groove portion 111 of the T-slot 11. It should be noted that when the limiting portion 201 of the pole 200 is cylindrical, the length L2 of the limiting portion 201 in the second direction is actually the diameter of the limiting portion 201.

[0042] Furthermore, the difference between the length L1 of the large groove portion 111 in the second direction and the length L2 of the limiting portion 201 in the second direction is less than or equal to 3 mm. Setting this numerical range not only facilitates the insertion of the limiting portion 201 of the terminal 200 into the large groove portion 111 of the T-slot 11, but also allows the large groove portion 111 to exert a certain limiting effect on the limiting portion 201, thereby facilitating assembly of the cap assembly.

[0043] Similarly, the length of the small groove portion 112 in the second direction is slightly greater than the length of the connecting portion 202 in the second direction. For example, the difference between the length of the small groove portion 112 in the second direction and the length of the connecting portion 202 in the second direction is less than or equal to 3 mm.

[0044] The outer surface of the cover plate 100 has a positioning groove 102, and the upper surface of the fixture 1 has a positioning protrusion 12 that cooperates with the positioning groove 102. This arrangement, through the cooperation between the positioning groove 102 and the positioning protrusion 12, can achieve the positioning and installation of the cover plate 100, which can reduce the degree of freedom of the cover plate 100 to a certain extent, facilitating the subsequent glass sealing and sintering process.

[0045] In this embodiment, the height of the positioning protrusion 12 is H2, and the depth of the positioning groove 102 is H3, where 0.5 mm ≤ H3 - H2 ≤ 2 mm. Setting this numerical range can reduce the force exerted by the positioning protrusion 12 on the bottom surface of the positioning groove 102, thereby reducing the probability and amount of deformation of the cover plate 100 due to force.

[0046] In this embodiment, the positioning protrusion 12 and the positioning groove 102 are both circular in shape. In other embodiments, the positioning protrusion 12 and the positioning groove 102 may also be rectangular or square in shape, which is not limited here.

[0047] Figure 4 FIG. 1 shows a cross-sectional view of a fixture 1 having multiple T-slots 11 provided in an embodiment of the present application. Figure 4 As shown, there are multiple T-slots 11, which are spaced apart along the second direction on the fixture 1. The glass sealing sintering process of multiple cap components can be carried out simultaneously, which can improve production efficiency and shorten the production cycle.

[0048] exist Figure 4 In the example, the sizes of the T-slots 11 are all the same. In other embodiments, the sizes of the T-slots 11 may not be all the same, and can be specifically designed according to needs, which is not limited here.

[0049] The above shows and describes the basic principles, main features and advantages of this application. Those skilled in the art should understand that the above embodiments do not limit this application in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the scope of protection of this application.

Claims

1. A jig for glass sealing sintering of cap components, characterized in that: The cap assembly comprises a cover plate (100) and a pole (200), wherein the cover plate (100) has a through hole (101), and the pole (200) comprises a limiting portion (201) and a connecting portion (202) connected to the limiting portion (201), wherein the longitudinal cross-section of the pole (200) is T-shaped, and the connecting portion (202) can be inserted into the through hole (101); The fixture is provided with a T-slot (11), the T-slot (11) at least passing through one side surface of the fixture in the first direction, and the T-slot (11) is used for limiting the installation of the limiting portion (201) and the connecting portion (202); The T-shaped slot (11) comprises a large slot portion (111) and a small slot portion (112) connected to the large slot portion (111); the small slot portion (112) passes through the upper surface of the jig; a distance H between the bottom surface of the large slot portion (111) and the upper surface of the jig is not greater than the maximum height of the limiting portion (201) of the pole (200) in a good product cap assembly protruding from the cover plate (100); and a depth H1 of the large slot portion (111) is not less than a thickness D1 of the limiting portion (201).

2. The jig for glass sealing and sintering of the cap assembly according to claim 1, characterized in that: The outer surface of the cover plate (100) has a positioning groove (102), and the upper surface of the fixture has a positioning protrusion (12) that matches the positioning groove (102).

3. The jig for glass sealing and sintering of the cap assembly according to claim 2, characterized in that: The height of the positioning protrusion (12) is H2, and the depth of the positioning groove (102) is H3, wherein 0.5 mm ≤ H3 - H2 ≤ 2 mm.

4. The jig for glass sealing and sintering of the cap assembly according to claim 2, characterized in that: The positioning protrusion (12) and the positioning groove (102) are both circular in shape.

5. The jig for glass sealing and sintering of a cap assembly according to claim 1, characterized in that: The length L1 of the large groove portion (111) in the second direction is greater than the length L2 of the limiting portion (201) in the second direction, wherein the second direction is perpendicular to the first direction.

6. The jig for glass sealing and sintering of the cap assembly according to claim 5, characterized in that: The difference between the length L1 of the large groove portion (111) in the second direction and the length L2 of the limiting portion (201) in the second direction is less than or equal to 3 mm.

7. The jig for glass sealing and sintering of a cap assembly according to claim 1, characterized in that: The jig is a graphite jig.

8. The jig for glass sealing and sintering of a cap assembly according to any one of claims 1 to 7, characterized in that: There are a plurality of T-slots (11), and the plurality of T-slots (11) are spaced apart on the fixture along a second direction, wherein the second direction is perpendicular to the first direction.

9. The jig for glass sealing and sintering of a cap assembly according to claim 8, characterized in that: The sizes of the T-slots (11) are all the same.

10. The jig for glass sealing and sintering of a cap assembly according to claim 8, characterized in that: The sizes of the T-slots (11) are not all the same.

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