CN217881593U

CN217881593U - Fuel cell reactor core structure with disc spring

Info

Publication number: CN217881593U
Application number: CN202221164947.2U
Authority: CN
Inventors: 倪康富; 彭海军; 谢铭锋
Original assignee: CRRC Suzhou Hydrogen Power Technology Co Ltd
Current assignee: CRRC Suzhou Hydrogen Power Technology Co Ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-11-22
Anticipated expiration: 2032-05-16

Abstract

The utility model relates to a fuel cell reactor core structure with dish spring, include: negative pole end plate, negative pole insulation board, anodal end plate, anodal insulation board and reactor core, the negative pole insulation board sets up between negative pole end plate and reactor core, the anodal insulation board sets up between anodal end plate and reactor core, be connected through a plurality of double-screw bolt and nut between negative pole end plate and the anodal end plate, be equipped with a plurality of dish spring between negative pole end plate and the negative pole insulation board, the negative pole end plate is equipped with the first recess with dish spring matched with and sets up the guide pillar in first recess, the dish spring cover is located on the guide pillar, the negative pole insulation board be equipped with dish spring matched with second recess and with guide pillar matched with third recess to both can prevent that the fuel cell reactor core from taking place to sideslip, can make whole fuel cell reactor core structure miniaturization again, increased the creepage distance between current collector to the dish spring simultaneously, this scheme still has the effect of restriction dish spring displacement moreover.

Description

Fuel cell reactor core structure with disc spring

[ technical field ] A method for producing a semiconductor device

The utility model relates to a fuel cell field especially relates to a fuel cell reactor core structure with dish spring.

[ background of the invention ]

A fuel cell is a chemical device that directly converts chemical energy of fuel into electric energy, and is also called an electrochemical generator, which is a fourth power generation technology following hydroelectric power generation, thermal power generation, and atomic power generation. In recent years, fuel cells have been regarded as efficient and pollution-free in many countries and have been widely used in many fields. Among them, proton Exchange Membrane Fuel Cell (PEMFC) has simple structure, low working temperature, fast starting speed, and it uses hydrogen and oxygen as reactants to generate electricity, heat, and water, because it is not limited by carnot cycle, and the reaction effluent is water, the proton exchange membrane fuel cell has the characteristics of high energy conversion efficiency, environmental protection, etc., and is the most popular fuel cell in the market at present. PEMFCs are assembled by a group of unit cells connected in series so as to obtain a desired output power, and fuel cells are the most promising power generation technology from the viewpoint of energy saving and ecological environment protection.

The purpose of setting up the dish spring in the fuel cell is stable in order to protect fuel cell fastening force, when fuel cell long-time operation on the car, because the road conditions is uneven leads to long-time vibrations, can arouse that the bolt of fuel cell fastening reactor core is not hard up, can effectively avoid the bolt not hard up after setting up the dish spring. Meanwhile, under a cold-hot working condition, the reactor core of the fuel cell expands when heated and contracts when cooled, so that the membrane electrode inside the fuel cell is stressed unevenly, and the phenomenon of uneven stress of the membrane electrode of the fuel cell caused by cold-hot expansion can be effectively avoided after the disc spring is arranged. Dish spring generally sets up between negative pole end plate and insulation board, is provided with the water conservancy diversion post among the prior art on the negative pole end plate, and the insulation board is big dull and stereotyped, dish spring cover locate on the water conservancy diversion post and with big dull and stereotyped surperficial looks butt, the water conservancy diversion post on the negative pole end plate can restrict dish spring displacement, the defect of this kind of structure lies in: 1. once collision occurs, the disc spring has the risk of displacement because no limit structure is arranged between the disc spring and the insulating plate, so that the fuel cell reactor core sideslips; 2. the structure increases the volume of the whole fuel cell reactor core structure, and is not beneficial to the miniaturization of the fuel cell reactor core structure.

Therefore, there is a need for a fuel cell core structure with a disc spring that solves the above-mentioned problems.

[ Utility model ] content

In order to solve the above problems, an object of the present invention is to provide a fuel electromagnetic core structure with a disc spring, which has a stable structure and is beneficial to miniaturization.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a fuel cell core structure with disc springs, comprising: negative pole end plate, negative pole insulation board, anodal end plate, anodal insulation board and reactor core, the negative pole insulation board sets up between negative pole end plate and reactor core, anodal insulation board sets up between anodal end plate and reactor core, be connected through a plurality of double-screw bolt and nut between negative pole end plate and the anodal end plate, be equipped with a plurality of dish spring between negative pole end plate and the negative pole insulation board, the negative pole end plate is equipped with the first recess with dish spring matched with and sets up the guide pillar in first recess, the dish spring cover is located on the guide pillar, the negative pole insulation board be equipped with dish spring matched with second recess and with guide pillar matched with third recess.

Preferably, the fuel cell core structure with the disc spring in the utility model is further configured as follows: the size of the third groove is smaller than that of the second groove.

Preferably, the fuel cell core structure with the disc spring in the utility model is further configured as follows: the third groove and the second groove are both arranged in a circular shape, and the circle centers of the third groove and the second groove are coincident.

Preferably, the fuel cell core structure with the disc spring in the utility model is further configured as follows: the first groove is arranged in a circular shape, the guide pillar is a cylinder, and the circle center of the first groove coincides with the circle center of the guide pillar.

Preferably, the utility model provides a fuel cell reactor core structure with dish spring further sets up to: the negative electrode insulating plate is made of epoxy resin.

Preferably, the utility model provides a fuel cell reactor core structure with dish spring further sets up to: the positive insulating plate is made of epoxy resin

Compared with the prior art, the utility model discloses following beneficial effect has: the groove matched with the disc spring is respectively arranged on the negative end plate and the negative insulating plate, so that the disc spring is limited, and the whole volume of the fuel cell reactor core structure is reduced, thereby preventing the fuel cell reactor core from sideslipping and miniaturizing the whole fuel cell reactor core structure; additionally the utility model discloses a be equipped with the guide pillar on the negative pole end plate, be equipped with on the negative pole insulation board with guide pillar matched with third recess, when the dish spring compresses tightly, the guide pillar can be accommodated in the third recess to can avoid leading to the condition emergence of dish spring inefficacy because of the guide pillar interferes with the negative pole insulation board.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of a core structure of a fuel cell of the present invention.

Fig. 2 is a schematic view of the structure of the cathode insulating plate of the present invention.

Fig. 3 isbase:Sub>A schematic sectional view of the structure taken along the linebase:Sub>A-base:Sub>A of fig. 2.

Fig. 4 is a schematic view of the structure of the cathode end plate of the present invention.

Fig. 5 is a schematic side view of the cathode end plate of the present invention.

In fig. 1 to 5: 1. the reactor comprises a negative electrode end plate, 10, a first groove, 11, a guide pillar, 2, a negative electrode insulating plate, 20, a second groove, 21, a third groove, 3, a positive electrode end plate, 4, a positive electrode insulating plate, 5, a reactor core, 6, a stud, 7, a nut, 8 and a disc spring.

[ detailed description ] embodiments

The fuel electromagnetic core structure with the disc spring according to the present invention is further described in detail by the following embodiments.

Referring to fig. 1 to 5, a fuel cell core structure with a disc spring includes: the reactor core comprises a negative electrode end plate 1, a negative electrode insulating plate 2, a positive electrode end plate 3, a positive electrode insulating plate 4 and a reactor core 5, wherein the negative electrode insulating plate 2 is arranged between the negative electrode end plate 1 and the reactor core 5, the positive electrode insulating plate 4 is arranged between the positive electrode end plate 3 and the reactor core 5, and in the embodiment, the negative electrode insulating plate 2 and the positive electrode insulating plate 4 are made of epoxy resin. The cathode end plate 1 is connected with the anode end plate 3 through a plurality of studs 6 and nuts 7, a plurality of disc springs 8 are arranged between the cathode end plate 1 and the cathode insulating plate 2, the cathode end plate 1 is provided with a first groove 10 matched with the disc springs 8 and a guide pillar 11 arranged in the first groove 10, the disc springs 8 are sleeved on the guide pillar 11, the first groove 10 is circularly arranged, the guide pillar 11 is a cylinder, and the circle center of the first groove 10 is coincided with the circle center of the guide pillar 11. The negative electrode insulating plate 2 is provided with a second groove 20 matched with the disc spring 8 and a third groove 21 matched with the guide post 11, the third groove 21 and the second groove 20 are both arranged in a circular shape, the circle centers of the third groove 21 and the second groove 20 are coincident, and the size of the third groove 21 is smaller than that of the second groove 20.

To sum up, the utility model has the advantages that the grooves matched with the disc springs are respectively arranged on the negative end plate and the negative insulating plate, so that the disc springs are limited, and the whole volume of the fuel cell reactor core structure is reduced, thereby preventing the fuel cell reactor core from sideslipping and miniaturizing the whole fuel cell reactor core structure; additionally the utility model discloses a be equipped with the guide pillar on the negative pole end plate, be equipped with on the negative pole insulation board with guide pillar matched with third recess, when the dish spring compresses tightly, the guide pillar can be accommodated in the third recess to can avoid leading to the condition emergence of dish spring inefficacy because of the guide pillar interferes with the negative pole insulation board, the groove depth of third recess is through calculating the acquisition, after negative pole insulation board one section distance of downstream, will restrict the negative pole insulation board and continue down to remove, thereby can effectively prevent the inside sealed inefficacy of reactor core.

The above-mentioned embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be applied, and are not intended to limit the present invention; it should be noted that, for those skilled in the art, without departing from the inventive concept, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. A fuel cell core structure with disc springs, comprising: negative pole end plate, negative pole insulation board, anodal end plate, anodal insulation board and reactor core, the negative pole insulation board sets up between negative pole end plate and reactor core, anodal insulation board sets up between anodal end plate and reactor core, be connected its characterized in that through a plurality of double-screw bolt and nut between negative pole end plate and the anodal end plate: the disc spring type cathode structure is characterized in that a plurality of disc springs are arranged between the cathode end plate and the cathode insulation plate, the cathode end plate is provided with a first groove matched with the disc springs and a guide pillar arranged in the first groove, the disc springs are sleeved on the guide pillar, and the cathode insulation plate is provided with a second groove matched with the disc springs and a third groove matched with the guide pillar.

2. The fuel cell core structure with a disc spring as set forth in claim 1, wherein: the size of the third groove is smaller than that of the second groove.

3. The fuel cell core structure with a disc spring as set forth in claim 1, wherein: the third groove and the second groove are both arranged in a circular shape, and the circle centers of the third groove and the second groove are coincident.

4. The fuel cell core structure with a disc spring as set forth in claim 1, wherein: the first groove is arranged in a circular shape, the guide pillar is a cylinder, and the circle center of the first groove coincides with the circle center of the guide pillar.

5. The fuel cell core structure with a disc spring as set forth in claim 1, wherein: the negative electrode insulating plate is made of epoxy resin.

6. The fuel cell core structure with a disc spring as set forth in claim 1, wherein: the positive insulating plate is made of epoxy resin.