阅读说明：本技术 一种注塑盲端集流板和燃料电池 (Injection molding blind end collector plate and fuel cell ) 是由 徐一凡 程旌德 于 2021-06-18 设计创作，主要内容包括：本发明涉及一种注塑盲端集流板和燃料电池,注塑盲端集流板包括注塑塑料板和金属集流板,所述注塑塑料板上设有嵌合槽,所述金属集流板安装在嵌合槽内使注塑塑料板覆盖金属集流板的背面和侧面,所述金属集流板的正面裸露,用于连接堆芯。与现有技术相比,本发明通过注塑工艺集成了传统的集流板和绝缘板,使端板和堆芯之间只具有注塑盲端集流板,简化了装配过程；同时,注塑塑料板覆盖金属集流板的背面和侧面,不但增强了绝缘效果,而且可以作为缓冲卡合件,提高装配后的精度和稳定性。(The invention relates to an injection molding blind end current collecting plate and a fuel cell. Compared with the prior art, the invention integrates the traditional current collecting plate and the insulating plate through the injection molding process, so that only the injection molding blind end current collecting plate is arranged between the end plate and the reactor core, and the assembly process is simplified; meanwhile, the injection molding plastic plate covers the back and the side of the metal collector plate, so that the insulation effect is enhanced, the injection molding plastic plate can be used as a buffer clamping piece, and the precision and the stability after assembly are improved.)

1. The utility model provides a blind end collector plate moulds plastics, its characterized in that, includes injection moulding plastic slab (1) and metal collector plate (2), be equipped with gomphosis groove (11) on injection moulding plastic slab (1), metal collector plate (2) are installed and are made injection moulding plastic slab (1) cover the back and the side of metal collector plate (2) in gomphosis groove (11), the front of metal collector plate (2) is exposed for connect reactor core (4).

2. An injection molding dead end collector plate according to claim 1, wherein the bottom surface of the embedding groove (11) is distributed with protruding columns (12), the back surface of the metal collector plate (2) is distributed with grooves (21) corresponding to the positions of the protruding columns (12), and when the metal collector plate (2) is installed in the embedding groove (11), the protruding columns (12) are correspondingly inserted into the grooves (21).

3. An injection molded blind end collector plate according to claim 2, wherein said raised posts (12) are distributed in a matrix arrangement.

4. An injection molded blind collector plate according to claim 2, wherein said raised pillars (12) are cylinders, triangular prisms or rectangular prisms.

5. An injection molded blind end collector plate according to claim 4, wherein vertical ribs (13) are distributed on the side walls of said cylinder, triangular prism or rectangular prism.

6. An injection molded blind end collector plate according to claim 1, wherein said injection molded plastic plate (1) is a nylon plate, a general plastic plate or an insulating resin plate.

7. An injection molded blind end collector plate according to claim 1, wherein the thickness of the injection molded plastic plate (1) is 3-6 cm.

8. An injection molding dead-end current collecting plate according to claim 1, characterized in that the side of the metal current collecting plate (2) is provided with a protruding wiring side plate (22), the end of the wiring side plate (22) is provided with a rivet nut (3), the injection molding plastic plate (1) connected with the wiring side plate (22) is provided with a mounting hole (15), and the rivet nut (3) is fixed in the mounting hole (15).

9. A fuel cell comprising a core (4) and an end plate (5), characterized in that an injection molded blind end collector plate according to any one of claims 1 to 8 is provided between the core (4) and the end plate (5), wherein the injection molded plastic plate (1) contacts the end plate (5) and the metal collector plate (2) contacts the core (4).

Technical Field

The invention relates to the field of fuel cells, in particular to an injection molding dead end collector plate and a fuel cell.

Background

The fuel cell is a power generation device which generates electric energy by hydrogen and oxygen through electrochemical reaction, and has the advantages of high energy conversion efficiency, environmental friendliness, low noise and the like. As fuel cell technology has developed and commercialized, the safety and durability of fuel cells have received increased attention. As shown in fig. 7, the conventional structure of the fuel cell includes a core 4, a current collecting plate 7, an insulating plate 6 and an end plate 5, and the current collecting plate, the insulating plate 6 and the end plate 5 are sequentially disposed at the blind end of the core 4, which results in a complicated production and assembly process and is easy to loosen during use, thereby affecting the operational stability of the fuel cell.

Disclosure of Invention

The present invention is directed to overcoming the above-mentioned drawbacks of the prior art, and providing an injection molding blind end current collecting plate and a fuel cell, which can simplify the assembly process and improve the accuracy and stability after assembly.

The purpose of the invention can be realized by the following technical scheme:

the injection molding blind end collector plate comprises an injection molding plastic plate and a metal collector plate, wherein the injection molding plastic plate is provided with an embedding groove, the metal collector plate is arranged in the embedding groove, so that the injection molding plastic plate covers the back and the side of the metal collector plate, and the front of the metal collector plate is exposed and used for connecting a reactor core.

Furthermore, the bottom surface of the embedding groove is distributed with protruding columns, the back surface of the metal current collecting plate is distributed with grooves corresponding to the positions of the protruding columns, and after the metal current collecting plate is installed in the embedding groove, the protruding columns are correspondingly inserted into the grooves.

Further, the convex columns are distributed in a matrix arrangement.

Further, the convex column is a cylinder, a triangular prism or a rectangular cylinder.

Furthermore, vertical reinforcing ribs are distributed on the side wall of the cylinder, the triangular prism or the rectangular prism.

Further, the injection plastic plate is a nylon plate, a common plastic plate or an insulating resin plate.

Further, the thickness of the injection molding plastic plate is 3-6 cm.

Furthermore, the side edge of the metal current collecting plate is provided with a convex wiring side plate, the end part of the wiring side plate is provided with a riveting nut, an injection plastic plate connected with the wiring side plate is provided with a mounting hole, and the riveting nut is fixed in the mounting hole.

A fuel cell comprises a reactor core and an end plate, wherein an injection molding blind end current collecting plate is arranged between the reactor core and the end plate, an injection molding plastic plate contacts with the end plate, and a metal current collecting plate contacts with the reactor core.

Compared with the prior art, the invention has the following beneficial effects:

1. the traditional current collecting plate and the traditional insulating plate are integrated through an injection molding process, so that only the injection molding blind end current collecting plate is arranged between the end plate and the reactor core, and the assembly process is simplified; meanwhile, the injection molding plastic plate covers the back and the side of the metal collector plate, so that the insulation effect is enhanced, the injection molding plastic plate can be used as a buffer clamping piece, and the precision and the stability after assembly are improved.

2. The invention arranges the protruding column on the injection plastic plate, and arranges the groove on the back of the metal collector plate to improve the connection strength of the injection plastic plate and the metal collector plate, thereby ensuring that the injection plastic plate and the metal collector plate are not separated, and simultaneously, the injection plastic plate can be made thinner and thinner with about half of the traditional insulation plate, thereby saving the internal space of the fuel motor and being beneficial to the structure miniaturization.

3. The protruding column adopts a structure of a geometric column body and a vertical reinforcing rib, and the connection strength is further improved.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view a-a of fig. 1.

Fig. 3 is a sectional view B-B of fig. 1.

Fig. 4 is an exploded view of the present invention.

Fig. 5 is an exploded view of another aspect of the present invention.

Fig. 6 is a schematic view of the installation of the present invention.

Fig. 7 is a schematic view of a prior art installation.

Reference numerals: 1. the core-type fuel gas reactor comprises an injection molding plastic plate, 11, an embedded groove, 12, a protruding column, 13, a vertical reinforcing rib, 15, a mounting hole, 2, a metal collector plate, 21, a groove, 22, a wiring side plate, 3, a riveting nut, 4, a reactor core, 5, an end plate, 6, an insulating plate, 7 and a collector plate.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

Example one

As shown in fig. 1 to 5, the present embodiment provides an injection molding blind end collector plate, which includes an injection molding plastic plate 1 and a metal collector plate 2. The metal collector plate 2 is mounted in the fitting groove 11 such that the injection-molded plastic plate 1 covers the back and side surfaces of the metal collector plate 2, and the front surface of the metal collector plate 2 is exposed to contact the core of the fuel cell. The edge of the metal current collecting plate 2 can be convex, and is clamped into the concave position on the side wall of the embedding groove 11, so that the connection strength is improved.

The bottom surface of the embedding groove 11 is distributed with the convex columns 12, the back surface of the metal current collecting plate 2 is distributed with the grooves 21 corresponding to the positions of the convex columns 12, when the metal current collecting plate 2 is installed in the embedding groove 11, the convex columns 12 are correspondingly inserted into the grooves 21, the connection strength of the injection molding plastic plate 1 and the metal current collecting plate 2 is improved, and the plastic injection molding plastic plate 1 and the metal current collecting plate 2 are ensured not to be separated. The distribution form and the self structure of the protruding columns 12 are not limited, and preferably adopt a matrix arrangement distribution form, and the distribution can ensure the balanced connection strength of the injection plastic plate 1 and the metal current collecting plate 2, thereby being beneficial to making the injection plastic plate 1 thinner and lighter. The structure of the raised columns 12 is generally a geometric column structure such as a cylinder, a triangular prism, a rectangular prism, etc., and a cylinder is preferably used in this embodiment. Vertical reinforcing ribs 13 can be distributed on the side wall of the cylinder, so that the connection strength is further improved. The injection plastic plate 1 can be a nylon plate, a common plastic plate or an insulating resin plate, preferably a nylon plate; the thickness of the injection-molded plastic plate 1 is generally 3 to 6cm, preferably 3 cm.

The side of the metal current collecting plate 2 is provided with a convex wiring side plate 22, and the end of the wiring side plate 22 is provided with a riveting nut 3. The injection plastic plate 1 covering the wiring side plate 22 is provided with a mounting hole 15, one end of the riveting nut 3 is embedded into the through hole of the wiring side plate 22, and the nut main body part of the riveting nut 3 is fixed in the mounting hole 15. The structure improves the installation firmness of the riveting nut 3 and ensures the safety and stability of the wiring of the collector plate.

Example two

As shown in fig. 6, the present embodiment provides a fuel cell including a core 4, an end plate 5, and the injection-molded blind-end current collecting plate described in the first embodiment. The injection molding blind end collector plate is fixed between the reactor core 4 and the end plate 5. The structure ensures that only the injection molding blind end collector plate is arranged between the end plate 5 and the reactor core 4, thereby simplifying the assembly process; meanwhile, the injection plastic plate 1 covers the back and the side of the metal collector plate 2, so that the insulation effect is enhanced, the injection plastic plate can be used as a buffer clamping piece connected with the end plate 5, and the precision and the stability after assembly are improved.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.