A single cell grouping and containing fixture

Abstract

The utility model discloses a single cell group sub -container clamp relates to cell production technical field. The utility model discloses a work table, electric push rod, push limit frame and fixed block, and one short side of work table top is fixed with the positioning frame, and the movable joint of positioning frame has the cell main part, and the cell main part stretches out the positioning frame, and the end of positioning frame stretches out the outside of cell main part and is provided with push limit frame, and the side of push limit frame close to cell main part is fixed with fixed block symmetrically, and the side of push limit frame away from cell main part is provided with push cylinder, and the bottom of work table below cell main part is fixed with electric push rod. The utility model discloses through setting up work table, electric push rod, push limit frame and fixed block, has solved that cell group sub -container clamp sub -container after taking out cell is not enough convenient, and clamping and power on need step by step, and the problem of inconvenient work.

Description

Technical Field

[0001] This utility model belongs to the field of battery cell production technology, and in particular relates to a single battery cell assembly capacity clamp. Background Technology

[0002] Cell assembly and capacity testing fixtures are key equipment in lithium battery production, primarily used in battery formation and capacity testing processes. Their main functions include fixing cell arrangement, providing stable electrical connections, controlling temperature, and collecting data such as voltage, current, and temperature to ensure the accuracy and consistency of battery performance testing. Common fixture types include spring-probe type, pneumatic clamping type, and manual fixtures. Spring-probe type fixtures have low contact resistance and long lifespan, suitable for cylindrical and prismatic batteries. Pneumatic clamping type fixtures offer stable and adjustable pressure, suitable for mass production. Manual fixtures are simple in structure and low in cost, often used for small batches or laboratory environments. However, cell assembly and capacity testing fixtures still have the following drawbacks in practical use:

[0003] When the battery cell grading clamp is in operation, it directly uses the clamp to hold the battery cell. After clamping and completing the grading process, the battery cell needs to be removed. After clamping, the battery cell will be fixed in the clamp's limiting structure. When removing the battery cell directly, the operator needs to exert a lot of force to push the battery cell. It is not convenient to remove the battery cell after grading.

[0004] Secondly, when using cell-to-cell capacity-matching fixtures, the cells are directly clamped. After clamping, an energized structure is used to energize the cells before the capacity matching can proceed. Clamping and energizing need to be done in separate steps, making the operation quite cumbersome. Utility Model Content

[0005] The purpose of this utility model is to provide a single cell batching capacity clamp. By setting up a worktable, electric push rod, push limit frame and fixing block, it solves the problems that it is not convenient to take out the cell after batching, and that clamping and powering need to be done in separate steps, which is inconvenient to work.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a single-cell battery cell assembling and capacity-matching fixture, comprising a worktable, an electric push rod, a pushing and limiting frame, and a fixing block. A positioning frame is fixed to one short side of the top of the worktable, and a battery cell body is movably connected within the positioning frame. The battery cell body extends out of the positioning frame, and a pushing and limiting frame is provided on the outer side of the end of the positioning frame extending out of the battery cell body. A fixing block is symmetrically fixed on the side of the pushing and limiting frame near the battery cell body, and a pushing cylinder is provided on the side of the pushing and limiting frame away from the battery cell body. An electric push rod is fixed to the bottom of the worktable below the battery cell body. During operation, the worktable serves as a basic support platform, and the positioning frame at its top is used to place and position the battery cell body. The pushing and limiting frame is driven by the pushing cylinder, which moves the fixing block to make the contact plate contact and conduct electricity with the battery cell electrode. After capacity matching is completed, the bottom electric push rod pushes the battery cell out of the positioning frame through the pushing plate for easy handling, realizing the functions of battery cell positioning, power-on capacity matching, and automatic ejection.

[0008] Furthermore, the telescopic end of the electric push rod is positioned upwards, and the piston rod of the electric push rod is movably connected inside the worktable. A push plate is fixed to the telescopic end of the electric push rod. The electric push rod is installed in an inverted manner, and the upward design of the telescopic end enables it to directly drive the top push plate to perform vertical lifting and lowering movements, providing a power source for the cell ejection action.

[0009] Furthermore, the top of the workbench is provided with an opening, and the push plate is set in the opening. The opening of the workbench provides a lifting channel for the push plate and restricts its movement trajectory, ensuring that the push plate maintains stable linear movement when lifting the battery cell, while not affecting the normal positioning of the battery cell in the positioning frame.

[0010] Furthermore, the telescopic end of the pushing cylinder is positioned towards the pushing limit frame, and the telescopic end of the pushing cylinder is fixed to the pushing limit frame. A wire protection sleeve is symmetrically fixed through the side of the pushing limit frame away from the main body of the battery cell. The pushing cylinder is directly driven by the pushing limit frame, and the wire protection sleeve is integrated on the limit frame, realizing the synchronous movement of mechanical pushing and wire protection, ensuring that the external wire is not pulled when the contact plate contacts the electrode.

[0011] Furthermore, a fixed base plate is fixed to the bottom of the pushing cylinder, and the bottom of the fixed base plate is fixed to the top of the workbench. An external wire is fixed to the end of the fixed block away from the main body of the battery cell. Two external wires are respectively fixed inside the wire protective sleeve and inside the workbench. The fixed base plate stably fixes the pushing cylinder on the workbench. The external wires are routed through the wire protective sleeve and inside the workbench to form a complete conductive path from the junction box to the capacity distribution circuit, while keeping the wiring neat.

[0012] Furthermore, a number of equally spaced contact plates are fixed to one end of the fixing block near the main body of the battery cell. The contact plates are electrically connected to the end of the external wire near the main body of the battery cell. Electrodes are symmetrically fixed to one end of the main body of the battery cell near the push limit frame. The ends of the two electrodes away from the main body of the battery cell respectively abut against the contact plates on the two fixing blocks. The elastic contact between the contact plates and the battery cell electrodes not only achieves circuit conduction but also assists in fixing the position of the battery cell through contact pressure. The multi-contact plate design ensures contact reliability, and the symmetrical arrangement of the electrodes corresponds to the positive and negative connection requirements of the external wire.

[0013] This utility model has the following beneficial effects:

[0014] This invention solves the problem of inconvenient removal of battery cells after capacity testing by setting up a worktable, an electric push rod, a pushing limit frame, and a fixing block. After the capacity test of the battery cell body is completed, the electric push rod is activated after pushing the limit frame away from the battery cell body. The electric push rod drives the push plate to rise, pushing out the battery cell body that has been capacity tested from the positioning frame on the worktable, making it easier to remove the battery cell body. This makes it more convenient to remove the battery cell body after capacity testing by the battery cell assembly capacity testing fixture.

[0015] This invention solves the problem of the inconvenience of having to perform the clamping and energizing of the battery cell assembly clamp in separate steps by setting up a worktable, an electric push rod, a push limit frame, and a fixing block. By placing the battery cell body in the positioning frame on the worktable, with one end of the fixed electrode facing the push limit frame, and activating the push cylinder, the push limit frame is pushed until the electrode plate on the fixing block moves close to the electrode, until the electrode plate abuts against the electrode. This ensures that the battery cell body is properly installed and positioned in the positioning frame during operation. At this time, the power in the battery cell body is transmitted through the electrode to the external wire and then to the capacity grading circuit for capacity grading. This allows the clamping and energizing of the battery cell assembly clamp to be performed simultaneously, making the operation more convenient. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional diagram of a single-cell battery cell assembly fixture structure;

[0018] Figure 2 A three-dimensional structural diagram of the workbench;

[0019] Figure 3 A three-dimensional structural diagram of an electric linear actuator;

[0020] Figure 4 To promote the structural 3D view of the limiting frame;

[0021] Figure 5 This is a three-dimensional structural diagram of the fixed block;

[0022] Figure 6 This is a three-dimensional view of the structure of a single-cell battery cell after the main body of the battery cell has been removed from a single-cell capacity-compressing fixture.

[0023] Figure label:

[0024] 1. Workbench; 101. Positioning frame; 102. Movable port; 2. Electric push rod; 201. Push plate; 3. Push limit frame; 301. Wire protection sleeve; 302. Push cylinder; 303. Fixed base plate; 4. Fixed block; 401. Electrical connection plate; 402. External wire; 5. Battery cell body; 501. Electrode. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0026] Please see Figure 1-3 This utility model is a single-cell batching capacity clamp, including a worktable 1, an electric push rod 2, a push limiting frame 3, and a fixing block 4. A positioning frame 101 is fixed to one short side of the top of the worktable 1. The worktable 1 connects and supports the push limiting frame 3 and the fixing block 4 on it and is supported on the working plane. A cell body 5 is movably connected inside the positioning frame 101. During batching, the position of the cell body 5 on the worktable 1 is determined by the positioning frame 101. The cell body 5 extends out of the positioning frame 101, and the positioning frame 101 extends out of the cell body 5. A push-limiting frame 3 is provided on the outer side of the end. The push-limiting frame 3 restricts and determines the position of the battery cell body 5 in the positioning frame 101. A fixing block 4 is symmetrically fixed on the side of the push-limiting frame 3 close to the battery cell body 5. The fixing block 4 connects the power board 401 and the external wire 402 to it. A push cylinder 302 is provided on the side of the push-limiting frame 3 away from the battery cell body 5. The push cylinder 302 drives the push-limiting frame 3 to move. An electric push rod 2 is fixed at the bottom of the workbench 1 below the battery cell body 5. The electric push rod 2 drives the battery cell body 5 to rise and fall.

[0027] Specifically, the telescopic end of the electric push rod 2 is set upward, and the piston rod of the electric push rod 2 is movably connected inside the worktable 1. The telescopic end of the electric push rod 2 is fixed with a push plate 201. The electric push rod 2 drives the push plate 201 to rise, thereby driving the battery cell body 5 to leave the worktable 1.

[0028] Furthermore, the top of the workbench 1 is provided with an opening 102, and the push plate 201 is set in the opening 102. The workbench 1 is movably connected to the push plate 201 through the opening 102, so that the battery cell body 5 can be fixedly set in the positioning frame 101.

[0029] The operation process of this embodiment is as follows: During operation, after the capacity detection of the battery cell body 5 is completed, after pushing the limit frame 3 away from the battery cell body 5, the electric push rod 2 is activated. The electric push rod 2 drives the push plate 201 to rise, pushing out the battery cell body 5 that has completed capacity testing in the positioning frame 101 on the workbench 1, making it easier to remove the battery cell body 5. Removing the battery cell body 5 is more convenient. Specific Implementation Example 2

[0030] Please see Figure 1-6 Based on the first specific embodiment, the extension end of the push cylinder 302 is set toward the push limit frame 3, the extension end of the push cylinder 302 is fixed to the push limit frame 3, and the push limit frame 3 is symmetrically fixed with a wire protection sleeve 301 on the side away from the battery cell body 5. The push cylinder 302 drives the fixed block 4 to move by pushing the limit frame 3.

[0031] Specifically, a fixed base plate 303 is fixed to the bottom of the push cylinder 302. The bottom of the fixed base plate 303 is fixed to the top of the workbench 1. An external wire 402 is fixed to the end of the fixed block 4 away from the main body of the battery cell 5. The two external wires 402 are respectively fixed inside the wire protection sleeve 301. The two external wires 402 are fixed inside the workbench 1. The push cylinder 302 is supported on the workbench 1 by the fixed base plate 303. After the bottom ends of the two external wires 402 are respectively connected to the capacity division circuit, the electrical energy of the main body of the battery cell 5 is transmitted to the capacity division circuit.

[0032] Furthermore, a number of equally spaced contact plates 401 are fixed to one end of the fixing block 4 near the battery cell body 5. The contact plates 401 are electrically connected to the end of the external wire 402 near the battery cell body 5. Electrodes 501 are symmetrically fixed to one end of the battery cell body 5 near the pushing limit frame 3. The ends of the two electrodes 501 away from the battery cell body 5 respectively abut against the contact plates 401 on the two fixing blocks 4. The fixing block 4 abuts against the electrodes 501 of the battery cell body 5 through the contact plates 401, thus restricting the battery cell body 5 within the limit frame. The electrodes 501 of the battery cell body 5 output electrical energy to the external wire 402 and transmit it to the capacity distribution circuit.

[0033] The operation process of this embodiment is as follows: During operation, the battery cell body 5 is placed in the positioning frame 101 on the workbench 1, and one end of the fixed electrode 501 is set towards the push limit frame 3. The push cylinder 302 is started to push the push limit frame 3 until the electrode plate 401 on the fixed block 4 moves close to the electrode 501 until the electrode plate 401 abuts against the electrode 501. During operation, the battery cell body 5 is installed and positioned in the positioning frame 101. At this time, the power in the battery cell body 5 is transmitted to the external wire 402 through the electrode 501 and transmitted to the capacity-dividing circuit for capacity division.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A single cell grouping and containing clamp, comprising a workbench (1), an electric push rod (2), a push limiting frame (3) and a fixed block (4), characterized in that: A positioning frame (101) is fixed at one short side of the top of the workbench (1). A battery cell body (5) is movably connected inside the positioning frame (101). The battery cell body (5) extends out of the positioning frame (101). A push limit frame (3) is provided on the outer side of the end of the positioning frame (101) extending out of the battery cell body (5). A fixing block (4) is symmetrically fixed on the side of the push limit frame (3) close to the battery cell body (5). A push cylinder (302) is provided on the side of the push limit frame (3) away from the battery cell body (5). An electric push rod (2) is fixed at the bottom of the workbench (1) below the battery cell body (5).

2. The single cell grouping and potting fixture of claim 1, wherein: The telescopic end of the electric push rod (2) is set upward, and the piston rod of the electric push rod (2) is movably connected inside the worktable (1). The telescopic end of the electric push rod (2) is fixed with a push plate (201).

3. The single cell grouping and potting fixture of claim 2, wherein: The top of the workbench (1) is provided with an opening (102), and the push plate (201) is located in the opening (102).

4. The single cell grouping and potting fixture of claim 1, wherein: The telescopic end of the push cylinder (302) is set toward the push limiting frame (3), and the telescopic end of the push cylinder (302) is fixed to the push limiting frame (3). The push limiting frame (3) is symmetrically fixed with a wire protection sleeve (301) on the side away from the battery cell body (5).

5. The single cell grouping and potting fixture of claim 4, wherein: The bottom of the push cylinder (302) is fixed with a fixed base plate (303), the bottom of the fixed base plate (303) is fixed on the top of the workbench (1), and an external wire (402) is fixed at one end of the fixed block (4) away from the battery cell body (5). The two external wires (402) are respectively fixed inside the wire protection sleeve (301) and are fixed inside the workbench (1).

6. The single cell grouping and potting fixture of claim 5, wherein: The fixed block (4) has several equally spaced contact plates (401) fixed at one end near the battery cell body (5). The contact plates (401) are electrically connected to the end of the external wire (402) near the battery cell body (5). Electrodes (501) are symmetrically fixed at one end of the battery cell body (5) near the push limit frame (3). The ends of the two electrodes (501) away from the battery cell body (5) respectively abut against the contact plates (401) on the two fixed blocks (4).

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