A stack press

By designing a battery stack press and utilizing positioning components and a drive mechanism to achieve aligned packaging of the battery pack, the problem of sealing failure caused by battery pack misalignment was solved, and the packaging quality and stability of the battery stack were improved.

CN114976174BActive Publication Date: 2025-12-16BEIJING SINOHYTEC
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Patent Information

Application Number
CN202210744652.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-06-29
Publication Date
2025-12-16
Estimated Expiration
2042-06-29

AI Technical Summary

Technical Problem

During the stacking process of fuel cell stacks, the battery packs are prone to misalignment, leading to sealing failure, and in severe cases, stack instability and collapse.

Method used

A battery stack press is designed, including a base plate, a positioning component, a guide component, and a drive mechanism. By setting the positioning component on the outer edge of the base plate and setting the positioning groove on the end plate of the battery stack, the drive mechanism moves along the extension direction of the guide component to achieve the alignment and packaging of the battery pack.

Benefits of technology

It effectively avoids battery pack misalignment, improves the packaging quality and sealing of the stack, saves stacking time, and avoids sealing failure and stack collapse.

✦ Generated by Eureka AI based on patent content.

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    Figure CN114976174B_ABST
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Abstract

The present application relates to the technical field of fuel cell, in particular to a kind of electric pile press, comprising: bottom plate, along the outer edge of the bottom plate is equipped with multiple positioning parts;Electric pile, is located in the middle of the bottom plate, and rear end plate is equipped on the upper surface of the electric pile, the lower surface of the electric pile is equipped with front end plate, and the front end plate is in contact with the bottom plate;Positioning slot, is equipped on the outer edge of the front end plate and the rear end plate, and the positioning slot is matched with the positioning part;Guide piece, is equipped on the bottom plate;Driving mechanism, is equipped on the rear end plate, the guide piece is penetrated through the driving mechanism, the driving mechanism moves along the extension direction of the guide piece, to compress the electric pile.The electric pile press works, positioning part is inserted into positioning slot, guarantees the battery pack alignment packaging when electric pile battery pack packaging, using the electric pile press can also save the time of packing, improve the quality of packing and packaging, avoid the situation of electric pile sealing failure.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fuel cell, in particular to a kind of electric pile press. BACKGROUND

[0002] Fuel cell stack is the device that fuel is directly generated electric energy by electrochemical reaction, also called electrochemical generator. Since the power requirement of fuel cell is increasing, the number of cell groups contained in fuel cell stack is more and more, usually the stack of fuel cell is stacked by several hundred cell groups, when the stack is packaged, several hundred cell groups are stacked into a stack;But in the actual stacking process, cell group is prone to mispositioning, after mispositioning, the stack of stacked cell group, in actual use, can cause sealing failure, and even lead to stack instability collapse when serious. SUMMARY

[0003] Therefore, the technical problem to be solved by the present application is to overcome the problem that in the prior art, in the actual stacking process of the battery, the cell group is prone to mispositioning, after mispositioning, the stack of stacked cell group, can cause sealing failure, and even lead to stack instability collapse when serious, so as to provide a kind of electric pile press.

[0004] In order to solve the above technical problems, the present application provides a kind of electric pile press, including: bottom plate, is equipped with multiple positioning parts along the outer edge of the bottom plate;Electric pile, is located in the middle of the bottom plate, and is equipped with rear end plate on the upper surface of the electric pile, the lower surface of the electric pile is equipped with front end plate, and the front end plate is in contact with the bottom plate;Positioning groove, is equipped on the outer edge of the front end plate and the rear end plate, and the positioning groove is matched with the positioning part;Guide piece, is equipped on the bottom plate;Driving mechanism, is equipped on the rear end plate, the guide piece penetrates the driving mechanism, and the driving mechanism moves along the extension direction of the guide piece to compress the electric pile.

[0005] Further, multiple positioning parts are distributed along the outer edge of the bottom plate.

[0006] Further, the positioning part includes: positioning plate, the positioning plate is L-shaped, and is equipped with boss on the positioning plate, and the boss is matched with the positioning groove;Reinforcing plate, is equipped on the positioning plate, is located on the side of the positioning plate away from the boss, and the reinforcing plate is perpendicular to the positioning plate.

[0007] Further, the positioning plate is also equipped with positioning hole, and the positioning hole is located on both sides of the reinforcing plate.

[0008] Further, the positioning part has eight.

[0009] Further, the outer wall of the electric pile and the bottom groove wall of the positioning groove are located on the same plane.

[0010] Further, the driving mechanism comprises a top plate and a pressing plate, the top plate is located above the pressing plate, and both are sleeved on the guide; a driving structure is arranged between the top plate and the pressing plate, and the driving structure is fixedly connected with the top plate and the pressing plate, and the driving structure drives the top plate and the pressing plate to move along the extension direction of the guide.

[0011] Further, the driving structure is a servo electric cylinder.

[0012] Further, the guide has a plurality of guides, and is arranged at the top corner of the bottom plate.

[0013] Further, the guide is a column.

[0014] The technical scheme of the present application has the following advantages:

[0015] 1. The electric pile press provided by the present application comprises a bottom plate, a plurality of positioning members are arranged along the outer edge of the bottom plate; an electric pile is arranged in the middle of the bottom plate, a rear end plate is arranged on the upper surface of the electric pile, a front end plate is arranged on the lower surface of the electric pile, and the front end plate is in contact with the bottom plate; positioning grooves are arranged on the outer edges of the front end plate and the rear end plate, and the positioning grooves are matched with the positioning members; a guide is arranged on the bottom plate; a driving mechanism is arranged on the rear end plate, the guide penetrates through the driving mechanism, and the driving mechanism moves along the extension direction of the guide to compress the electric pile.

[0016] By arranging the positioning members on the outer edge of the bottom plate, arranging the rear end plate on the upper surface of the electric pile, arranging the front end plate on the lower surface of the electric pile, and arranging the positioning grooves on the outer edges of the rear end plate and the front end plate, the positioning members and the positioning grooves are matched with each other, that is, when the driving mechanism works, the driving mechanism moves up and down along the extension direction of the guide, that is, when the driving mechanism moves downward, the driving mechanism compresses the electric pile, and the positioning grooves on the front end plate and the rear end plate are matched with the positioning members on the bottom plate, that is, the positioning members are inserted into the positioning grooves, so that the battery pack is correctly packaged when the electric pile battery pack is packaged, the electric pile press can also save the stacking time, improve the quality of the pile and the packaging, and avoid the situation that the electric pile sealing fails.

[0017] 2. The electric pile press provided by the present application, the positioning member comprises a positioning plate, the positioning plate is L-shaped, and a boss is arranged on the positioning plate, the boss is matched with the positioning groove; a reinforcing plate is arranged on the positioning plate, located on the side of the positioning plate away from the boss, and the reinforcing plate is perpendicular to the positioning plate. The reinforcing plate effectively supports the positioning plate, and increases the stability of the positioning plate.

[0018] 3. The electric pile press provided by the present application, the outer wall of the electric pile is located on the same plane as the bottom groove wall of the positioning groove, which can effectively ensure the effective contact between the positioning member and the positioning groove, and avoid the misalignment between the positioning member and the positioning groove, thereby ensuring the alignment packaging of the battery pack during the packaging of the electric pile battery pack.

[0019] The summary is provided to introduce a selection of concepts in a simplified form, which will be further described below in the detailed description. The summary is not intended to identify key or essential features of the disclosure, nor is it intended to limit the scope of the disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the specific embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0021] Fig. 1 The structural schematic diagram of the electric pile press provided by the present application;

[0022] Fig. 2 The front view of the electric pile press provided by the present application;

[0023] Fig. 3 The structural schematic diagram of the electric pile of the electric pile press provided by the present application;

[0024] Fig. 4 The structural schematic diagram of the positioning member of the electric pile press provided by the present application.

[0025] Explanation of reference signs:

[0026] 1 - bottom plate; 2 - positioning member; 21 - positioning plate; 22 - boss; 23 - reinforcing plate; 24 - positioning hole; 3 - electric pile; 4 - rear end plate; 5 - front end plate; 6 - positioning groove; 7 - guide member; 8 - driving mechanism; 81 - pressing plate; 82 - top plate; 83 - driving structure. DETAILED DESCRIPTION

[0027] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0028] In the description of the disclosure, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "straight", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the disclosure. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the disclosure, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0029] In the description of the disclosure, it needs to be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection or can communicate with each other; it can be directly connected, or indirectly connected through intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the disclosure can be understood according to the specific circumstances.

[0030] In the disclosure, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0031] The disclosure below provides many different embodiments or examples for implementing different structures of the disclosure. For the sake of simplicity, the description below of a particular embodiment or example focuses on the differences among that embodiment and the other embodiments. Each embodiment, however, is capable of extensive modification and change, all of which embody the principles of the disclosure and these specific embodiments should not be construed as limiting the disclosure. Furthermore, the disclosure can use any of a number of different technologies and materials, and the disclosure can use any of a number of different processes and materials.

[0032] The preferred embodiments of the disclosure will be described below with reference to the drawings. It should be understood that the preferred embodiments described herein are merely for the purpose of illustration and explanation for the disclosure, and are not intended to limit the disclosure. Furthermore, the disclosure provides various specific examples of processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0033] Please refer to Figs. 1 to 4 As shown in the drawings, the present application provides a stack press, comprising: a base plate 1, a plurality of positioning members 2 are arranged along the outer edge of the base plate 1; a stack 3 is arranged in the middle of the base plate 1, and a rear end plate 4 is arranged on the upper surface of the stack 3, a front end plate 5 is arranged on the lower surface of the stack 3, and the front end plate 5 is in contact with the base plate 1; a positioning groove 6 is arranged on the outer edge of the front end plate 5 and the rear end plate 4, and the positioning groove 6 is matched with the positioning member 2; a guide member 7 is arranged on the base plate 1; a driving mechanism 8 is arranged on the rear end plate 4, the guide member 7 penetrates the driving mechanism 8, and the driving mechanism 8 moves along the extension direction of the guide member 7 to compress the stack 3.

[0034] By arranging the positioning member 2 on the outer edge of the base plate 1, and arranging the rear end plate 4 on the upper surface of the stack 3, and arranging the front end plate 5 on the lower surface of the stack 3, and arranging the positioning groove 6 on the outer edge of the rear end plate 4 and the front end plate 5, the positioning member 2 and the positioning groove 6 are matched with each other, that is, when the driving mechanism 8 works, the driving mechanism 8 moves up and down along the extension direction of the guide member 7, that is, when the driving mechanism 8 moves down, the driving mechanism 8 compresses the stack 3, and the positioning groove 6 on the front end plate 5 and the rear end plate 4 is matched with the positioning member 2 on the base plate 1, that is, the positioning member 2 is inserted into the positioning groove 6, which ensures the correct packaging of the battery pack when the stack 3 is packaged, and the stack press can also save the stacking time, improve the quality of the stack and packaging, and avoid the situation of stack 3 sealing failure.

[0035] In some optional embodiments, the plurality of positioning members 2 are spaced apart along the outer edges of the bottom plate 1; in this embodiment, the number of positioning members 2 is eight, which are respectively arranged at the four side lengths of the bottom plate 1. Among them, the number of positioning grooves 6 is sixteen, among which eight positioning grooves 6 are arranged on the front end plate 5, and the other eight positioning grooves 6 are arranged on the rear end plate 4, and the arrangement positions of the positioning grooves 6 on the front end plate 5 and the rear end plate 4 and the arrangement positions of the positioning members 2 are the same, so that when the driving mechanism 8 moves downward along the guide member 7, the positioning grooves 6 on the front end plate 5 and the rear end plate 4 can be completely matched with the positioning members 2 on the bottom plate 1, thereby ensuring the correct packaging of the battery pack during the packaging of the battery pack of the stack 3. The stack press can also save the stack time and improve the stack and packaging quality.

[0036] Specifically, the number of positioning members 2 and positioning grooves 6 can be set according to actual conditions.

[0037] In this embodiment, the positioning member 2 comprises a positioning plate 21 and a reinforcing plate 23; wherein the positioning plate 21 is L-shaped, and a boss 22 is arranged on the positioning plate 21, and the boss 22 is matched with the positioning groove 6; the reinforcing plate 23 is arranged on the positioning plate 21 and located on the side of the positioning plate 21 away from the boss 22, and the reinforcing plate 23 is perpendicular to the positioning plate 21. The reinforcing plate 23 effectively supports the positioning plate 21, increasing the stability of the positioning plate 21.

[0038] In some optional embodiments, the positioning plate 21 is further provided with a positioning hole 24, and the positioning hole 24 is located on both sides of the reinforcing plate 23; the positioning hole 24 can be fixed to the bottom plate 1 by a fixing member, so as to ensure that the positioning member 2 and the bottom plate 1 are connected into an integral part, thereby ensuring the installation stability of the positioning member 2.

[0039] In some optional embodiments, the outer wall of the stack 3 and the bottom groove wall of the positioning groove 6 are located on the same plane, which can effectively ensure the effective contact between the positioning member 2 and the positioning groove 6, and also avoid the misalignment between the positioning member 2 and the positioning groove 6, thereby ensuring the correct packaging of the battery pack during the packaging of the battery pack of the stack 3.

[0040] In some optional embodiments, the driving mechanism 8 comprises a top plate 82 and a pressing plate 81, and a driving structure 83; the top plate 82 is above the pressing plate 81, and both are sleeved on the guide 7; the driving structure 83 is between the top plate 82 and the pressing plate 81, and the driving structure 83 is fixedly connected with the top plate 82 and the pressing plate 81, and the driving structure 83 drives the top plate 82 and the pressing plate 81 to move along the extension direction of the guide 7; that is, when the stack 3 needs to be compressed, the driving structure 83 moves downward; when the stack 3 is compressed, the driving structure 83 moves upward, that is, the compressed stack 3 can be taken out, and a new stack 3 can be put in for compression.

[0041] In the embodiment, the driving structure 83 is a servo electric cylinder. The servo electric cylinder can precisely control the packaging force and displacement, and the servo electric cylinder applies pressure downward through the pressing plate 81, so as to compress the stack 3.

[0042] In some optional embodiments, the guide 7 is provided in multiple numbers and is arranged at the top corners of the bottom plate 1. Specifically, the guide 7 is four, and the four guides 7 are arranged at the four top corners of the bottom plate 1 and are arranged in a spaced manner with the positioning member 2 on the bottom plate 1.

[0043] In the embodiment, the guide 7 is a column.

[0044] The specific working method of the stack 3 structure is as follows: in the initial state, the stack 3 is not installed on the bottom plate 1; when the stack 3 needs to be compressed, the stack 3 is installed in the middle of the bottom plate 1, and the positioning groove 6 on the front end plate 5 is matched with the positioning member 2, and the positioning groove 6 on the rear end plate 4 corresponds to the arrangement position of the positioning member 2; after the stack 3 is installed, the driving structure 83 is started, the driving structure 83 applies pressure downward through the pressing plate 81, so as to compress the stack 3, and the positioning member 2 on the bottom plate 1 is inserted into the positioning groove 6 of the rear end plate 4, so as to ensure the alignment packaging of the stack 3 during the packaging of the stack 3. The stack press can also save the stack installation time and improve the stack compression and packaging quality.

[0045] Obviously, the above embodiments are only examples for clearly illustrating, and are not intended to limit the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments are not required to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A stack press characterized by, The utility model relates to a kind of electric pile, including: Bottom plate (1), it is equipped with multiple positioning parts (2) along the outer edge of the bottom plate (1); Electric pile (3), it is equipped in the middle of the bottom plate (1), and back end plate (4) is equipped on the upper surface of the electric pile (3), the lower surface of the electric pile (3) is equipped with front end plate (5), and the front end plate (5) is in contact with the bottom plate (1); Positioning slot (6), it is equipped on the outer edge of the front end plate (5) and the back end plate (4), and the positioning slot (6) is matched with the positioning part (2); Guide (7), it is equipped on the bottom plate (1); Driving mechanism (8), it is equipped on the back end plate (4), the guide (7) is penetrated through the driving mechanism (8), and the driving mechanism (8) moves along the extension direction of the guide (7), to compress the electric pile (3); Multiple positioning parts (2) are spaced along the outer edge of the bottom plate (1); The positioning part (2) includes: Positioning plate (21), the positioning plate (21) is L-shaped, and boss (22) is equipped on the positioning plate (21), and the boss (22) is matched with the positioning slot (6); Reinforcing plate (23), it is equipped on the positioning plate (21), on the side of the positioning plate (21) away from the boss (22), and the reinforcing plate (23) is perpendicular to the positioning plate (21); The positioning part (2) has eight, and is arranged at the four edge length of bottom plate (1) respectively.

2. The stack press of claim 1, wherein, Positioning hole (24) is further equipped on the positioning plate (21), and the positioning hole (24) is located on the two sides of the reinforcing plate (23).

3. The stack press of claim 1, wherein, The outer wall of the electric pile (3) and the bottom groove wall of the positioning slot (6) are located on the same plane.

4. The stack press of claim 3, wherein, The driving mechanism (8) includes: Top plate (82) and pressing plate (81), the top plate (82) is located above the pressing plate (81), and both are sleeved on the guide (7); Driving structure (83), it is equipped between the top plate (82) and pressing plate (81), and the driving structure (83) is fixedly connected with the top plate (82) and pressing plate (81), and the driving structure (83) drives the top plate (82) and pressing plate (81) to move along the extension direction of the guide (7).

5. The stack press of claim 4, wherein, The driving structure (83) is servo motor cylinder.

6. The stack press according to any one of claims 3-5, characterized in that, The guide (7) has multiple, and is equipped at the top corner of the bottom plate (1).

7. The stack press of claim 6, wherein, The guide (7) is a stand.

Citation Information

Patent Citations

  • Fuel cell stack assembly method

    CN103633359A

  • Fuel cell

    CN212434678U

  • Electric pile press

    CN217485508U