Thermal battery stack assembly tool

Abstract

The utility model discloses a kind of hot battery electric pile assembly tool, it is related to hot battery technical field.This tool mainly includes base, arc column strip, wherein boss side surface on base is designed with mounting threaded hole, arc column strip is designed with the positioning slot of half opening, for the positioning of positive and negative pole connecting strip, through-hole is provided on arc column strip, through-hole size is matched with the threaded hole of base boss, the side surface of arc column strip has scale, for the interpretation of electric pile height.Two arc column strips are fixedly connected with base by screw, perpendicular to each other, and the component constitutes hot battery electric pile assembly tool.The hot battery electric pile assembly tool of the utility model is simple in structure, convenient to operate, and strong in universality, and the assembly of electric pile can be quickly realized.

Description

Technical Field

[0001] This utility model relates to the field of thermal battery technology, and in particular to a tooling for assembling thermal battery stacks. The tooling has a simple structure, is easy to operate, and is highly versatile, making it very suitable for thermal battery production. Background Technology

[0002] Currently, the production process of a conventional thermal battery stack is as follows: a certain number of heating elements, individual cells, current collectors, activation mechanisms, insulation pads, positive and negative electrode connecting pieces, etc., are stacked in the order required by the process; after stacking, a certain pressure is applied in the vertical direction of the stack to control its height within a certain range; then, the appearance, size, insulation, polarity, number of parts, stacking order, and other parameters of the stack are inspected and verified one by one; after all parameters have passed the inspection, the stack is locked and fastened with appropriately sized parts; after fastening, the stack is removed from the tooling and transferred to the next process as required, at which point a qualified stack is produced.

[0003] The fuel cell stack is the core functional component of a thermal battery and the sole source of its electrical output. Any malfunction in the stack will affect the entire thermal battery's function, potentially leading to complete battery failure. Therefore, the fuel cell stack's importance to thermal battery products is self-evident. In actual production, the placement, stacking sequence, electrode condition, verticality, and height of the fuel cell stack's components are subject to very strict requirements and regulations. For these reasons, the most effective way for thermal battery manufacturers to ensure product consistency and batch uniformity is to utilize tooling to assist in the assembly of the fuel cell stack. Utility Model Content

[0004] The assembly tooling for thermal battery stacks according to this utility model can ensure the consistency and batch-specificity of stack production, while avoiding secondary damage to individual cells, thus improving the safety of thermal batteries and enhancing product quality.

[0005] The assembly fixture for the thermal battery stack described in this utility model is composed of a base and an arc-shaped column strip. The two are perpendicular to each other after assembly. The two arc-shaped columns are installed at a certain distance apart. The arc-shaped column strip is designed with a positioning groove and a scale on the side.

[0006] The aforementioned thermal battery stack assembly fixture can achieve functions such as positioning the positive and negative electrode connecting plates in the stack, measuring the stack height, and ensuring the stack's verticality. After the stack is assembled, there is no need to move the stack; simply removing the two arc-shaped uprights exposes the entire stack clearly, allowing for intuitive and convenient inspection. After the stack passes inspection, it can be easily removed by securing it with components. The entire process does not damage the internal components, especially fragile individual cells and heating elements, significantly reducing safety hazards and making it highly suitable for mass production of thermal batteries.

[0007] Specifically, the present invention adopts the following technical solution:

[0008] A stack assembly fixture for thermal batteries includes:

[0009] A base, the base including a base body, a boss located on the base body and a threaded hole located on the side of the boss body;

[0010] The arc-shaped column strip includes a base, a through hole on the base, a positioning groove, and a scale.

[0011] The positioning groove is a semi-open rectangular groove, and the through hole is located at the lower end of the base and is adapted to the size of the threaded hole on the base boss. It is used to fix the base and the arc-shaped column strip. The base and the arc-shaped column strip are perpendicular to each other after being fixedly connected.

[0012] Furthermore, the arc-shaped column strip consists of two arc-shaped column strips, and the base and the two arc-shaped column strips surround a circular cavity, the diameter of which is the same as the diameter of a single cell in the fuel cell stack.

[0013] Furthermore, the base is circular, and the outer diameter of the boss on the base is the same as the size of the individual battery.

[0014] Furthermore, the number of threaded holes on the side of the base boss is ≥2.

[0015] Furthermore, the height of the positioning groove of the arc-shaped column strip should be greater than the height of the battery stack, and the width of the positioning groove should be greater than the width of the positive and negative connecting pieces.

[0016] Furthermore, the inner diameter of the arc-shaped column strip is the same as the outer diameter of the boss, and the outer diameter of the arc-shaped column strip is the same as the outer diameter of the base.

[0017] Furthermore, the arc angle of the arc-shaped column strip is 30° to 160°; the installation angle between the two column strips is 180° symmetrically installed.

[0018] Furthermore, the base and the arc-shaped column are fixed together by screws.

[0019] Furthermore, the lower opening end face of the positioning groove of the arc-shaped column strip is flush with the upper surface of the base boss.

[0020] Furthermore, a scale is set on the side of the curved column bar for measuring the height of the fuel cell stack.

[0021] Compared with the prior art, the present invention has at least the following beneficial effects:

[0022] This utility model relates to a fuel cell stack assembly fixture, comprising a base and two arc-shaped column strips. Assembly is completed by fixing the base and the two arc-shaped column strips together, ensuring they are perpendicular to each other. The inner diameter of the circular cavity formed by the two arc-shaped column strips is the same as the diameter of the individual battery cell. During use, the fuel cell stack components are placed into the circular cavity in a stacking order from bottom to top. The positions of the positive and negative electrode connecting pieces are located using the positioning grooves on the arc-shaped column strips. The arc-shaped surface of the column strips not only protects fragile parts such as the individual battery cells and heating elements but also ensures the perpendicularity of the components within the fuel cell stack. After stacking, a certain pressure is applied vertically until the stack height meets the requirements. The stack height can be visually read using a scale on the arc-shaped column strips. After assembly, both arc-shaped column strips are removed, clearly exposing the fuel cell stack for subsequent testing and evaluation of its various parameters. The assembly fixture for this thermal battery stack has a simple structure and is easy to operate. It has good compatibility and versatility for stacks connected in series, in parallel, and with multiple outputs. Attached Figure Description

[0023] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

[0024] Figure 1 A three-dimensional structural schematic diagram of the assembly tooling for a thermal battery stack according to the present invention is shown.

[0025] Figure 2 This diagram shows a disassembled schematic of the assembly tooling for a thermal battery stack according to the present invention. Detailed Implementation

[0026] The technical solutions of this utility model will now be clearly and completely described with reference to the accompanying drawings. It should be noted that 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 utility model pertains. It should also be noted that, unless otherwise expressly specified and limited, the terms "adapter," "fixed," "assembled," "fastened," "stacked," and "assembled" should be interpreted broadly. The terminology used in this specification of the utility model is for the purpose of describing specific embodiments only and is not intended to limit the scope of the utility model.

[0027] It should also be noted that in the description of this utility model, the terms "vertical", "horizontal", "up", "down", 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 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. Therefore, they should not be construed as limitations of this utility model.

[0028] This utility model of a thermal battery stack assembly fixture can realize functions such as positioning the positive and negative electrode connecting pieces in the stack, measuring the stack height, and ensuring the stack verticality. After the stack is assembled, the arc-shaped column strip is removed, at which point the entire stack is completely and clearly exposed, allowing for intuitive and convenient inspection. After the stack passes inspection, it can be easily removed after being secured with components. The entire process will not damage the components inside the stack, especially the fragile individual cells and heating elements, which can significantly reduce the safety hazards of the stack and is very suitable for mass production of thermal batteries.

[0029] See appendix Figure 1 and attached Figure 2 The assembly tooling for the thermal battery stack of this utility model includes a base (10) and an arc-shaped column strip (20).

[0030] The base (10) is provided with a base body (11), a boss (12), and a threaded hole (13);

[0031] The arc-shaped column strip (20) is provided with an arc-shaped column strip base (21), a positioning groove (22), a through hole (23) and a scale (24);

[0032] The threaded hole of the base is matched with the through hole of the arc-shaped column, and the two are perpendicular to each other after being fixed.

[0033] The outer diameter of the boss is the same as the inner diameter of the arc-shaped column, and also the same as the size of the individual cell in the fuel cell stack. The outer diameter of the base is the same as the outer diameter of the arc-shaped column.

[0034] The conventional assembly sequence for thermal battery stacks is: preparation of components and tooling, stacking of the stack, inspection of the stack, and final assembly of the stack. The specific working process of the thermal battery stack assembly tooling using this invention is as follows:

[0035] S1. Place the base (10) on a horizontal table, keeping the boss (12) facing upwards. Align the through holes (23) of the two arc-shaped columns (20) with the threaded holes (13) on the base respectively, and tighten them with screws. The two are perpendicular to each other after being combined. The circular cavity formed by the two arc-shaped columns is used to place the parts. The end face of the lower opening of the positioning groove (22) is flush with the upper surface of the boss (12).

[0036] S2. Place the prepared fuel cell stack components into the circular cavity from bottom to top according to the process requirements. The positive and negative connecting pieces can be positioned using the positioning groove (22) of the arc-shaped column strip, which will facilitate subsequent fixed connection with the poles on the battery cover.

[0037] S3. After all the components are stacked, apply a certain pressure in the vertical direction of the fuel cell stack until the height of the fuel cell stack meets the process requirements. The height of the fuel cell stack can be determined by the scale (24) on the side of the column bar.

[0038] S4. After the fuel cell stack is assembled, loosen the screws and remove the two arc-shaped column strips (20). At this time, the entire fuel cell stack is completely and clearly exposed. Then, inspect the appearance, size, insulation, polarity, stacking sequence and verticality of the entire fuel cell stack.

[0039] S5. After the fuel cell stack passes inspection, the fuel cell stack is locked and fixed with matching parts. Then, after depressurization, the entire fuel cell stack is removed from the base (10). At this time, a fuel cell stack that meets the process requirements is obtained.

[0040] In summary, the assembly fixture for thermal battery stacks of this utility model, through the vertical combination of the base and the arc-shaped column strip, can be used for assembling thermal battery stacks with different structures such as series, parallel, and multiple outputs. It can realize functions such as component positioning, ensuring verticality, and judging height. At the same time, it can facilitate subsequent inspections of the stack, and has good practicality and versatility.

[0041] The above content is only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the prominent technical concept of this utility model shall fall within the scope of protection of the claims of this utility model.

Claims

1. A stack assembly fixture for a thermal battery, characterized in that, include: The base (10) includes a base body (11), a boss (12) located on the base body, and a threaded hole (13) located on the side of the boss. The arc-shaped column strip (20) includes an arc-shaped column strip base (21), a positioning groove (22) located on the arc-shaped column strip base, a through hole (23) and a scale (24). The positioning groove is a semi-open rectangular groove; the through hole is located at the lower end of the base and is adapted to the size of the threaded hole on the base boss, and is used to fix the base and the arc-shaped column strip. The base and the arc-shaped column strip are perpendicular to each other after being fixedly connected.

2. The tooling according to claim 1, characterized in that, The arc-shaped column consists of two arc-shaped column strips, and the base and the two arc-shaped column strips surround a circular cavity, the diameter of which is the same as the diameter of a single cell in the fuel cell stack.

3. The tooling according to claim 1, characterized in that, The base is circular, and the outer diameter of the base boss is the same as the size of the individual battery.

4. The tooling according to claim 1, characterized in that, The number of threaded holes is ≥2.

5. The tooling according to claim 1, characterized in that, The height of the positioning groove on the arc-shaped column is greater than the total height of the assembled fuel cell stack, and the width of the positioning groove is greater than the width of the positive and negative connecting pieces in the fuel cell stack.

6. The tooling according to claim 1, characterized in that, The inner diameter of the arc-shaped column is the same as the outer diameter of the boss, and the outer diameter of the arc-shaped column is the same as the outer diameter of the base.

7. The tooling according to claim 1, characterized in that, The arc angle of the arc-shaped column strip is 30° to 160°, and the installation angle between two arc-shaped column strips is 180°.

8. The tooling according to claim 1, characterized in that, The base and the arc-shaped column are fixed together by screws.

9. The tooling according to claim 1, characterized in that, After the arc-shaped column is fixedly connected to the base, the lower opening end face of the positioning groove is flush with the upper surface of the base boss.

10. The tooling according to claim 1, characterized in that, The scale is set on the side of the arc-shaped column and is used to measure the height of the fuel cell stack.

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