Gluing tool for air-cooled fuel cell stack single piece

Abstract

A gluing tool for an air-cooled fuel cell stack single piece comprises a carrying plate, a lower panel is arranged on the upper side of the carrying plate, an upper panel is arranged above the lower panel, the lower surface of the lower panel is of a plane structure, and at least one set of counterbore positioning structures are arranged in the lower panel. Each set of counterbore positioning structures comprises two counterbores arranged at intervals, a counterbore positioning column is arranged in each counterbore, the upper surface of the upper panel is of a plane structure, positioning grooves are formed in the lower surface of the upper panel, and the upper ends of the positioning rods are arranged in the positioning grooves of the upper panel in a one-to-one correspondence mode. According to the utility model, the positioning rods are used for accurately positioning each component in the galvanic pile single sheet, such as a cathode and anode gas diffusion layer, a membrane electrode, a bipolar plate component and the like, so that displacement of the single sheet component in the gluing process is avoided, the position of each component of the single sheet is prevented from being repeatedly adjusted, the gluing processing time is shortened, and the production efficiency is improved. And the gluing efficiency and the gluing quality of the single stack are improved, and the rejection rate is reduced.

Description

Technical Field

[0001] The utility model relates to the field of physics, in particular to a fuel cell stack processing technology, in particular to a gluing tool for a single piece of an air-cooled fuel cell stack. Background Art

[0002] The fuel cell manufacturing industry is one of the new industries of my country's national economy. With the rapid development of the national economy, the development scale and technical level of the domestic fuel cell manufacturing industry have been improved, and the requirements for the production of fuel cell stack parts have also increased. As we all know, the fuel cell stack is composed of a series of single chips in series. In the production process of battery stack parts, the gluing process of single chip components is indispensable. The stack single chip is composed of bipolar plates, membrane electrodes, anode and cathode gas diffusion layers, etc. Common fuel cell stacks will design sealant grooves on the bipolar plate components. This type of bipolar plate component is easier to glue, and only needs to apply the sealant in the groove. For air-cooled fuel cell stacks, in order to pursue high power density, the bipolar plates are welded or combined with lighter and thinner metal sheets and stamped sheets with parallel flow fields. There is no special sealant groove reserved, and the bipolar plates and membrane electrodes and gas diffusion layer components need to be positioned layer by layer through precise positioning. In the prior art, when making a single chip, these components need to be placed one by one on the glue-coated board and fixed by pressing blocks. However, misalignment and displacement are prone to occur during the gluing or transfer process, so the position of each component needs to be repeatedly adjusted, which seriously affects the gluing efficiency and quality and the quality of the prepared single chip, and ultimately affects the quality and performance of the battery stack. Summary of the invention

[0003] The purpose of the utility model is to provide a gluing tool for a single piece of an air-cooled fuel cell stack, which is intended to solve the technical problem in the prior art that each component of the single piece is easily displaced during the gluing process.

[0004] The utility model discloses a gluing tool for a single piece of an air-cooled fuel cell stack, comprising a loading plate, a lower panel is arranged on the upper side of the loading plate, the lower panel is detachably connected to the loading plate, an upper panel is arranged above the lower panel, and first hand release grooves are arranged on both sides of the lower panel.

[0005] At least one group of countersunk hole positioning structures is provided in the lower panel, and any group of countersunk hole positioning structures each includes two countersunk holes arranged at intervals, and any countersunk hole is composed of a large-diameter hole and a small-diameter hole, and the small-diameter hole is coaxially arranged at the upper end of the large-diameter hole. A countersunk positioning column is provided in any countersunk hole, and any countersunk positioning column each includes a positioning head and a positioning rod, and the positioning rod is coaxially connected to the upper end of the positioning head, and the positioning head is arranged in the large-diameter hole, and the upper end of the positioning rod passes through the small-diameter hole and extends upward.

[0006] The upper surface of the upper panel is a planar structure, and the lower surface of the upper panel is provided with positioning grooves whose number is equal to the countersunk holes and whose positions correspond to the countersunk holes. The upper ends of the positioning rods are arranged in the positioning grooves of the upper panel in a one-to-one correspondence, and second hand release grooves are arranged on both sides of the upper panel.

[0007] Furthermore, a positioning through hole is provided in the lower panel, and the lower panel is detachably connected to the carrier plate via the carrier plate positioning column and the positioning through hole.

[0008] Furthermore, the upper end of the positioning rod is provided with an arc surface.

[0009] Compared with the prior art, the utility model has a positive and obvious effect. The utility model is a gluing tool for a single piece of an air-cooled fuel cell stack. The positioning rod is used to accurately position each component in the single piece of the stack, such as the anode and cathode gas diffusion layers, the membrane electrode, and the bipolar plate assembly, so as to avoid displacement of the single piece assembly during the gluing process, avoid repeated adjustment of the positions of the components of the single piece, shorten the gluing processing time, improve the gluing efficiency and gluing quality of the single piece of the stack, and reduce the scrap rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a front view schematic diagram of a gluing tooling for a single piece of an air-cooled fuel cell stack according to the utility model.

[0011] Figure 2 The utility model is a schematic top view of a gluing tool for a single piece of an air-cooled fuel cell stack.

[0012] Figure 3 It is a front view schematic diagram of a carrier plate in a gluing tool for a single piece of an air-cooled fuel cell stack according to the utility model.

[0013] Figure 4 It is a bottom view schematic diagram of a carrier plate in a gluing tool for a single piece of an air-cooled fuel cell stack according to the utility model.

[0014] Figure 5 It is a front cross-sectional schematic diagram of a lower panel in a gluing tooling for a single piece of an air-cooled fuel cell stack of the utility model.

[0015] Figure 6 It is a bottom view schematic diagram of a lower panel in a gluing tool for a single piece of an air-cooled fuel cell stack according to the utility model.

[0016] Figure 7 It is a schematic diagram of a countersunk positioning column in a gluing tool for a single piece of an air-cooled fuel cell stack according to the utility model.

[0017] Figure 8 It is a front view schematic diagram of an upper panel in a gluing tooling of a single piece of an air-cooled fuel cell stack of the utility model.

[0018] Fig. 9 The utility model is a bottom view schematic diagram of an upper panel in a gluing tool for a single piece of an air-cooled fuel cell stack. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with an embodiment, but the present invention is not limited to the embodiment. Any similar structure and similar changes of the present invention should be included in the protection scope of the present invention. The use of directions such as up, down, front, back, left, and right in the present invention is only for the convenience of clear description and is not a limitation on the technical solution of the present invention.

[0020] like Figure 1-Figure 9 As shown, the utility model is a gluing tool for a single piece of an air-cooled fuel cell stack, comprising a carrier plate 1, the carrier plate 1 is fixed to the gluing device by screws, a lower panel 2 is arranged on the upper side of the carrier plate 1, the lower panel 2 is detachably connected to the carrier plate 1, an upper panel 3 is arranged above the lower panel 2,

[0021] The lower surface of the lower panel 2 is a planar structure, and at least one group of countersunk hole positioning structures is arranged in the lower panel 2, and any group of countersunk hole positioning structures each includes two countersunk holes 4 arranged at intervals, and any countersunk hole 4 is each composed of a large diameter hole 5 and a small diameter hole 6, and the small diameter hole 6 is coaxially arranged at the upper end of the large diameter hole 5, and any countersunk hole 4 is provided with a countersunk positioning column 7, and any countersunk positioning column 7 each includes a positioning head 8 and a positioning rod 9, and the positioning rod 9 is coaxially connected to the upper end of the positioning head 8, and the positioning head 8 is arranged in the large diameter hole 5, and the upper end of the positioning rod 9 passes through the small diameter hole 6 and extends upward. Specifically, both sides of the lower panel are provided with a first release groove, which can facilitate the removal or movement of the lower panel.

[0022] The upper surface of the upper panel 3 is a planar structure, and the lower surface of the upper panel 3 is provided with positioning grooves 12, the number of which is equal to the countersunk holes 4 and the positions of which are corresponding to the countersunk holes 4, and the upper ends of the positioning rods 9 are arranged in the positioning grooves 12 of the upper panel 3 in a one-to-one correspondence. Specifically, both sides of the upper panel 3 are provided with second hand-release grooves, which can facilitate the removal or movement of the lower panel.

[0023] Furthermore, a positioning through hole is provided in the lower panel 2, and the lower panel 2 is detachably connected to the carrier board 1 through the carrier board positioning column and the positioning through hole.

[0024] Specifically, one end of the carrier plate positioning column is fixed to the carrier plate 1 by thread or tight fit, and the other end is tight fit with the lower panel 2 by tolerance. The top of the carrier plate positioning column is an arc surface or an elliptical arc surface, which makes it easy to remove the lower two panels from the carrier plate 1.

[0025] Furthermore, an arc surface 11 is provided at the upper end of the positioning rod 9 .

[0026] The working process of this embodiment is as follows: a piece of release film is placed on the lower panel 2 to prevent the sealant from sticking to the lower panel 2, and then the cathode gas diffusion layer is placed. Vents are designed at both ends of the cathode gas diffusion layer, and the two vents are respectively sleeved on the two positioning rods 9; then the membrane electrode and the anode gas diffusion layer are placed, and they are also sleeved on the two positioning rods 9, and then the glue is applied. After the glue is applied, the metal sheet part of the bipolar plate assembly 10 is placed, and then another piece of release film is placed, and then the upper panel 3 is placed. The positioning groove 12 of the upper panel 3 cooperates with the positioning rod 9 for positioning, and waits for the sealant to solidify.

[0027] According to actual needs, the height of the countersunk positioning column 7 and the positioning groove 12 can be adjusted to control the height of the glue coating and ensure the consistency of the height of the micelles after glue coating.

[0028] The utility model discloses a gluing tool for a single piece of an air-cooled fuel cell stack, which utilizes a positioning rod 9 to accurately position various components in the single piece of the stack, such as the anode and cathode gas diffusion layers, the membrane electrode, the bipolar plate assembly, etc., thereby avoiding displacement of the single piece components during the gluing process, avoiding repeated adjustment of the positions of the single piece components, shortening the gluing processing time, improving the gluing efficiency and gluing quality of the single piece of the stack, and reducing the scrap rate.

Claims

1. A gluing tool for a single piece of an air-cooled fuel cell stack, characterized in that: The utility model comprises a loading board, a lower panel is arranged on the upper side of the loading board, the lower panel is detachably connected to the loading board, and an upper panel is arranged above the lower panel. The lower surface of the lower panel is a plane structure, and at least one group of countersunk hole positioning structures is arranged in the lower panel, and any group of countersunk hole positioning structures each includes two countersunk holes arranged at intervals, and any countersunk hole is each composed of a large diameter hole and a small diameter hole, and the small diameter hole is coaxially arranged at the upper end of the large diameter hole, and a countersunk positioning column is arranged in any countersunk hole, and any countersunk positioning column each includes a positioning head and a positioning rod, and the positioning rod is coaxially connected to the upper end of the positioning head, and the positioning head is arranged in the large diameter hole, and the upper end of the positioning rod extends upward after passing through the small diameter hole, and the first hand release groove is arranged on both sides of the lower panel, The upper surface of the upper panel is a planar structure, and the lower surface of the upper panel is provided with positioning grooves whose number is equal to the countersunk holes and whose positions correspond to the countersunk holes. The upper ends of the positioning rods are arranged in the positioning grooves of the upper panel in a one-to-one correspondence, and second hand release grooves are arranged on both sides of the upper panel.

2. The gluing tool for a single piece of an air-cooled fuel cell stack according to claim 1, characterized in that: The lower panel is provided with a positioning through hole, and the lower panel is detachably connected to the carrier plate through the carrier plate positioning column and the positioning through hole.

3. The gluing tool for a single piece of an air-cooled fuel cell stack according to claim 1, characterized in that: The upper end of the positioning rod is provided with an arc surface.

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