Device for assembling battery sealing structure

Abstract

The utility model provides a device for assembling a battery sealing structure, which belongs to the technical field of fuel cells and comprises a pressing plate and a base, the base is provided with a movable connecting piece used for being connected with a sealing piece, and when the base is matched with the pressing plate to limit a bipolar plate, the movable connecting piece can install the sealing piece on the bipolar plate under the stress condition. According to the device for assembling the battery sealing structure provided by the utility model, the bipolar plate is limited and fixed by using the pressing plate and the base, the sealing piece is fixed by the movable connecting piece in the process, the sealing piece corresponds to the mounting position on the bipolar plate, and then the sealing piece can be mounted on the bipolar plate under the action of external force. The device for assembling the battery sealing structure can be used for simply, conveniently and efficiently pasting sealing pieces on the two sides of a bipolar plate of a fuel cell, and has the characteristics of high yield and high efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of fuel cells, and more specifically relates to a device for assembling a battery sealing structure. Background Art

[0002] A typical fuel cell consists of a membrane electrode, bipolar plates, and seals. The membrane electrode is where the hydrogen fuel and oxidant react; the bipolar plates evenly distribute the reactant gases, collect current and conduct electrical energy, and block the reactant gases. The seal provides a seal, preventing the reactant gases from leaking outwards or leaking outwards. If the seal is inadequate, allowing the reactant gases to cross-contaminate each other, the hydrogen fuel and oxidant react directly under the action of the electrocatalyst, rapidly generating significant heat and severely damaging the cell. A certain concentration of hydrogen fuel and oxidant can also cause an explosion. Leakage of reactant gases outside the cell reduces fuel utilization and battery performance, and, if the space around the cell is limited, can lead to extremely dangerous explosions and even personal injury. Therefore, battery sealing is a crucial technology.

[0003] For mass production, membrane electrodes, bipolar plates, and seals are generally formed independently, and the various components are then combined in a certain way to form a fuel cell monomer. For the assembly of seals, the existing method is usually for the operator to apply glue that can be cured at room temperature in the bipolar plate sealing groove, and then manually lay the seal into the sealing groove. In order to achieve a good sealing effect, the seal must be placed flat in the sealing groove, cannot be skewed, and must be tightly fitted. In addition, seals are generally made of relatively soft materials with a thickness of no more than 1 mm. Therefore, even skilled operators need to concentrate and operate carefully. This conventional manual pasting assembly method has the disadvantages of low efficiency, poor pasting strength, and low yield. Utility Model Content

[0004] The purpose of the utility model is to provide a device for assembling a battery sealing structure, aiming to solve the technical problem of low efficiency in assembling sealing parts in the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a device for assembling a battery sealing structure, comprising:

[0006] pressure plate;

[0007] The base is provided with a movable connecting piece for connecting with the sealing piece. When the base cooperates with the pressure plate to restrict the bipolar plate, the movable connecting piece can install the sealing piece on the bipolar plate under force conditions.

[0008] Preferably, the movable connecting member is a groove provided on the end surface of the base, and a force-bearing hole penetrating the base is provided at the bottom of the groove.

[0009] Preferably, the movable connecting member is movably connected to the base, and the movable connecting member can move in a direction perpendicular to the end surface of the base when subjected to force.

[0010] Preferably, the movable connecting member is a force-bearing movable plate; the force-bearing movable plate is provided with a first connecting portion for connecting with the sealing member.

[0011] Preferably, the first connecting portion is a limiting groove.

[0012] Preferably, the shape of the movable connecting member is the same as that of the sealing member.

[0013] Preferably, a first limiting member is provided on the base, and the shape and size of the first limiting member match the shape and size of the bipolar plate; and / or

[0014] A second limiting member is provided on the pressure plate, and the shape and size of the second limiting member match the shape and size of the bipolar plate.

[0015] Preferably, the base is provided with a second connecting portion for connecting to a hydraulic mechanism.

[0016] The present invention provides a device for assembling a battery sealing structure. Compared to existing technologies, the present invention utilizes a pressure plate and a base to position and secure the bipolar plate. During this process, a movable connector secures the seal, which aligns with the mounting position on the bipolar plate. The seal can then be installed on the bipolar plate under the action of an external force. This device for assembling a battery sealing structure can easily and efficiently attach the seals on both sides of a fuel cell bipolar plate, achieving a high yield and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic structural diagram of a base used in a device for assembling a battery sealing structure provided by an embodiment of the present utility model;

[0019] Figure 2A diagram illustrating the compression process of a device for assembling a battery sealing structure provided by an embodiment of the present utility model;

[0020] Figure 3 This is a diagram of a device for assembling a battery sealing structure provided by an embodiment of the present utility model in a non-forced state.

[0021] In the figure: 1. base; 2. movable connecting member; 4. pressure plate; 3. first limiting member. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] Please also refer to Figures 1 to 3 The present invention now provides a device for assembling a battery sealing structure. The device comprises a pressure plate 4 and a base 1. The base 1 is provided with a movable connector 2 for connecting to a seal. When the base 1 and pressure plate 4 cooperate to restrain the bipolar plates, the movable connector 2 can mount the seal on the bipolar plates under load.

[0024] The present invention provides a device for assembling a battery sealing structure. Compared to existing technologies, this device first uses a pressure plate 4 and a base 1 to position and secure the bipolar plate. During this process, a movable connector 2 secures the seal, which aligns with the mounting position on the bipolar plate. The seal can then be installed on the bipolar plate under the action of an external force. This device for assembling a battery sealing structure can easily and efficiently attach seals to both sides of a fuel cell bipolar plate, achieving a high yield and efficiency.

[0025] As a specific implementation of the present invention, please refer to Figures 1 to 3 The movable connecting member 2 is a groove arranged on the end surface of the base 1, and a force-bearing hole penetrating the base 1 is provided at the bottom of the groove.

[0026] During use, first embed the seal into the groove, then restrict the bipolar plate through the cooperation of the pressure plate 4 and the base 1, and then use a lifting device (such as a hydraulic jack) to lift the seal and connect and fix the seal to the bipolar plate. Then restore the lifting device to its initial state. Specifically, the movable end of the lifting device passes through the force hole and contacts the seal. More specifically, the base 1 and the pressure plate 4 are arranged in the up and down direction during use. The base 1 is located below the pressure plate 4. The bipolar plate is confined between the base 1 and the pressure plate 4. The lifting device is placed below the base 1 for use.

[0027] In this embodiment, when the sealing member is embedded in the groove, there is a gap between the side surface of the groove and the sealing member, which facilitates the movement of the sealing member.

[0028] As a specific implementation of the present invention, please refer to Figures 1 to 3 The movable connecting member 2 is movably connected to the base 1. When the movable connecting member 2 is subjected to force, it can move in a direction perpendicular to the end face of the base 1, thereby realizing the movement of the sealing member.

[0029] In this embodiment, the movable connecting member 2 is a force-bearing movable plate; the force-bearing movable plate is provided with a first connection portion for connecting to the seal. A receiving groove is provided on the end surface of the base 1 to accommodate the force-bearing movable plate. The bottom surface of the receiving groove is provided with multiple through-holes. The movable end of the lifting device can be inserted into the through-holes to apply force to the force-bearing movable plate, driving the force-bearing movable plate to move, thereby achieving the function of moving the seal. The receiving groove is used to stabilize the seal, allowing for precise attachment of the seal.

[0030] In this embodiment, the accommodating groove has a depth of 0.5-1mm; in its natural, unused state, it is used to house the seal. After the seal and bipolar plate are placed, the bipolar plate is secured by a first stopper 3. The hydraulic device below the base 1 lifts the movable plate, transforming it into a boss, allowing the seal to contact and adhere to the bipolar plate sealing groove. The base fixture can be replaced with the corresponding bipolar plate seal for different bipolar plate seals.

[0031] In this embodiment, a chute is provided on the bottom surface of the base 1 in the vertical direction. A first slider is provided on the force-bearing movable plate. The first slider cooperates with the chute to limit the force-bearing movable plate to only reciprocating up and down motion along the base 1.

[0032] In any feasible embodiment, the first connecting portion is a limiting groove provided on the end surface of the force-bearing movable plate, and the shape and size of the limiting groove are the same as those of the sealing member.

[0033] In another feasible embodiment, the first connection portion is an adhesive structure provided on the end surface of the force-bearing movable plate. The shape and size of the adhesive structure are the same as those of the seal. The force acting between the adhesive structure and the seal is less than the connection force between the seal and the bipolar plate.

[0034] As a specific implementation of the present invention, please refer to Figures 1 to 3 The shape of the movable connecting member 2 is the same as that of the sealing member. The shape and size of the movable connecting member 2 is greater than or equal to that of the sealing member.

[0035] As a specific implementation of the present invention, please refer to Figures 1 to 3A first position-limiting member 3 is provided on the base 1. The shape and size of the first position-limiting member 3 match the shape and size of the bipolar plate. The first position-limiting member 3 is used to limit the bipolar plate.

[0036] In this embodiment, the first limiting member 3 is a limiting plate that is fixedly connected to the base 1 .

[0037] As a specific implementation of the present invention, please refer to Figures 1 to 3 A second limiting member is provided on the pressure plate 4, and the shape and size of the second limiting member match the shape and size of the bipolar plate. The second limiting member is used to limit the bipolar plate.

[0038] As a specific implementation of the present invention, please refer to Figures 1 to 3 The pressing plate 4 is provided with a third connection portion for connecting with the hydraulic mechanism, which facilitates the connection and fixation of the pressing plate 4 with the hydraulic mechanism.

[0039] In this embodiment, the third connection portion can be connected and fixed to the hydraulic mechanism through one or more connection methods such as snap connection, threaded connection, magnetic connection, etc.

[0040] As a specific implementation of the present invention, please refer to Figures 1 to 3 The base 1 is provided with a second connection portion for connecting with the hydraulic mechanism, which facilitates the connection and fixation of the base 1 with the hydraulic mechanism.

[0041] In this embodiment, the second connection portion can be connected and secured to the hydraulic mechanism through one or more connection methods, such as a snap connection, a threaded connection, or a magnetic connection. The provision of the third and second connection portions facilitates placement of the bipolar plates and seals. The hydraulic mechanism can precisely control both the pressing force and the thrust stroke, ensuring that the pressure plate applies a certain amount of pressure to the seal, ensuring a secure adhesion without damaging the bipolar plates.

[0042] The present invention provides a device for assembling a battery seal structure, which is equipped with a groove structure with the same shape as the seal. The groove stabilizes the seal within the groove, allowing for precise adhesion of the seal. The device is easy to operate, highly efficient, and has a high yield rate, transforming the traditional manual adhesion of seals into a semi-automated operation. The base 1 and pressure plate 4 of the device apply force using hydraulic pressure. The lowering of the pressure plate 4 and the lifting of the groove structure exert a certain pressure on the seal, ensuring a secure adhesion of the seal.

[0043] Place the bipolar plates, which are divided into upper and lower plates. Attach the plates, with glue applied to both sides where they need to be sealed, to the base 1. The lower and upper plates correspond to different bottom plate 4 fixtures. Activate the hydraulic mechanism to press them together. Close the hydraulic mechanism, eliminating the pressure differential and allowing the seals to adhere to the upper and lower plates. Remove the bipolar plates, which will now have seals attached to both sides.

[0044] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. Within the scope of the present invention, the technical features of the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the various aspects of the present invention described above, which are not provided in detail for the sake of clarity. Therefore, the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A device for assembling a battery sealing structure, characterized in that: include: Pressing plate (4); A base (1) is provided with a movable connecting member (2) for connecting to a sealing member. When the base (1) and the pressure plate (4) cooperate to restrict the bipolar plate, the movable connecting member (2) can install the sealing member on the bipolar plate under stress conditions.

2. A device for assembling a battery sealing structure according to claim 1, characterized in that: The movable connecting member (2) is a groove provided on the end surface of the base (1), and a force-bearing hole penetrating the base (1) is provided at the bottom of the groove.

3. The device for assembling a battery sealing structure according to claim 1, wherein: The movable connecting member (2) is movably connected to the base (1), and when subjected to force, the movable connecting member (2) can move in a direction perpendicular to the end surface of the base (1).

4. The device for assembling a battery sealing structure according to claim 3, wherein: The movable connecting member (2) is a force-bearing movable plate; the force-bearing movable plate is provided with a first connecting portion for connecting with the sealing member.

5. The device for assembling a battery sealing structure according to claim 4, characterized in that: The first connecting portion is a limiting groove.

6. A device for assembling a battery sealing structure according to any one of claims 2 or 3, characterized in that: The shape of the movable connecting member (2) is the same as that of the sealing member.

7. The device for assembling a battery sealing structure according to claim 1, wherein: The base (1) is provided with a first limiting member, the shape and size of the first limiting member matching the shape and size of the bipolar plate; and / or A second limiting member is provided on the pressing plate (4), and the shape and size of the second limiting member match the shape and size of the bipolar plate.

8. The device for assembling a battery sealing structure according to claim 1, wherein: The base (1) is provided with a second connection portion for connecting to a hydraulic mechanism.

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