CN210837957U

CN210837957U - Sealing ring and fuel cell

Info

Publication number: CN210837957U
Application number: CN201921331615.7U
Authority: CN
Inventors: 李祥帆; 郝义国; 刘超
Original assignee: Wuhan Central Hydrogen Energy Industry Innovation Center Co ltd
Current assignee: Grove Hydrogen Energy Technology Group Co ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-06-23
Anticipated expiration: 2029-08-16

Abstract

The utility model discloses a sealing washer and fuel cell relates to the fuel cell field, and this sealing washer includes skeleton and rubber seal ring, the skeleton with rubber seal ring is confined loop configuration, the skeleton is platelike, a side of skeleton has the edge the annular that the skeleton extends holds gluey groove, rubber seal ring fixes on the another side of skeleton, after gluing in the seal groove, when pasting the sealing washer in the seal groove, the adhesive can be located the annular and holds gluey groove, and when compressing tightly the sealing washer, the adhesive pressurized only can fill the annular and hold gluey groove, can avoid the adhesive to be extruded between the contact surface from sealing washer and seal groove. And even the adhesive in different positions has different amounts when being dispensed, the adhesive can be diffused along the annular adhesive accommodating groove, so that the unevenness of the sealing ring caused by the different thicknesses of the adhesive in different positions can be avoided.

Description

Sealing ring and fuel cell

Technical Field

The utility model relates to a fuel cell field, in particular to sealing washer and fuel cell.

Background

Seal rings are common seals and have found use in a wide variety of devices.

Taking a fuel cell as an example, the fuel cell is a chemical device that directly converts chemical energy of fuel into electrical energy. A sealing ring is also provided in the fuel cell to avoid mixing of hydrogen and oxygen.

The sealing ring is usually arranged in the sealing groove, and in the fuel cell, the sealing ring needs to be adhered in the sealing groove. However, when the sealing ring is adhered, the adhesive is easily extruded out from the contact surface between the sealing ring and the sealing groove, the adhering quality is affected, and the amount of the adhesive at different positions is different, so that the adhering quality is affected due to different thicknesses of the adhesive at different positions after the sealing ring is adhered, and the sealing ring is uneven.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a sealing washer and fuel cell can improve the bonding quality of sealing washer. The technical scheme is as follows:

on the one hand, the embodiment of the utility model provides a sealing washer, including skeleton and rubber seal ring, the skeleton with rubber seal ring is confined loop configuration, the skeleton is platelike, a side of skeleton has the edge the annular that the skeleton extends holds gluey groove, rubber seal ring fixes on the another side of skeleton.

Optionally, the other side surface of the skeleton is a convex surface.

Optionally, the other side of the framework is an arc convex surface, and the cross section of the annular glue accommodating groove is arched.

Optionally, the cross-section of the sealing ring is symmetrical about a line on which the height of the arch is located.

Optionally, the framework is a metal structural member.

Optionally, the metal is a ferromagnetic material.

Optionally, the cross section of the rubber sealing ring is arc-shaped, and the bottom edge of the arc-shaped is connected with the framework.

Optionally, the sealing ring is an integral injection moulding.

Optionally, the closed ring structure comprises a circular ring structure, an elliptical ring structure, or a polygonal ring structure.

On the other hand, the embodiment of the utility model provides a fuel cell is still provided, fuel cell includes aforementioned any kind of sealing washer.

The embodiment of the utility model provides a beneficial effect that technical scheme brought includes at least: through setting up skeleton and rubber seal ring, the skeleton is platelike, because one side mask of skeleton has annular glue containing groove, and rubber seal ring fixes on the another side of skeleton, and the back is glued to the seal groove internal point, when pasting the sealing washer in the seal groove, the adhesive can be arranged in annular glue containing groove, and when compressing tightly the sealing washer, the adhesive pressurized only can fill annular glue containing groove, can avoid the adhesive to be extruded from between the contact surface of sealing washer and seal groove. And even the adhesive in different positions has different amounts when being dispensed, the adhesive can be diffused along the annular adhesive accommodating groove, so that the unevenness of the sealing ring caused by the different thicknesses of the adhesive in different positions can be avoided.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a sealing ring according to an embodiment of the present invention;

fig. 2 is a schematic partial structural view of a sealing ring according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of a seal ring according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a sealing ring according to an embodiment of the present invention. As shown in fig. 1, the seal ring includes a backbone 10 and a rubber seal ring 20. The framework 10 and the rubber sealing ring 20 are both closed annular structures.

Fig. 2 is a schematic partial structure diagram of a sealing ring according to an embodiment of the present invention. As shown in fig. 2, the frame 10 is plate-shaped, one side surface of the frame 10 has an annular rubber accommodating groove 10a extending along the frame 10, and a rubber seal ring 20 is fixed to the other side surface of the frame 10.

Through setting up skeleton and rubber seal ring, the skeleton is platelike, because one side mask of skeleton has annular glue containing groove, and rubber seal ring fixes on the another side of skeleton, and the back is glued to the seal groove internal point, when pasting the sealing washer in the seal groove, the adhesive can be arranged in annular glue containing groove, and when compressing tightly the sealing washer, the adhesive pressurized only can fill annular glue containing groove, can avoid the adhesive to be extruded from between the contact surface of sealing washer and seal groove. And even the adhesive in different positions has different amounts when being dispensed, the adhesive can be diffused along the annular adhesive accommodating groove, so that the unevenness of the sealing ring caused by the different thicknesses of the adhesive in different positions can be avoided.

Alternatively, the closed loop structure may comprise a circular loop structure, an elliptical loop structure, a polygonal loop structure. Specifically, the sealing groove may be formed in a circular shape, for example, the skeleton 10 and the rubber sealing ring 20 may be both circular structures as shown in fig. 1. The sealing groove is polygonal, and the framework 10 and the rubber sealing ring 20 are both polygonal ring structures. In the embodiment of the present invention, the ring shape refers to a geometric figure surrounding a circle, and not to a single ring, the shape of the sealing ring shown in fig. 1 is only an example.

Alternatively, the frame 10 may be a metallic or non-metallic structural member.

Exemplary non-metals may be any of PE (Polyethylene), PC (Polycarbonate), PA (Polyamide Resin), PP (polypropylene). The non-metallic materials such as PE, PC, PA, PP, etc. are easy to manufacture and convenient for the molding of the framework 10.

The metal may comprise an elemental metal or alloy, such as copper, aluminum, iron, copper alloy, aluminum alloy, or steel. The framework 10 is made of metal, so that the framework has high strength, certain toughness and low possibility of fracture.

Optionally, the metal may also be a ferromagnetic material. Typical ferromagnetic materials include iron, cobalt, nickel and corresponding alloys. The ferromagnetic material can be used for grabbing through the magnet and the electromagnet, so that automation of the pasting process can be facilitated.

Preferably, the framework 10 can be a stainless steel structural member, and the stainless steel can be grabbed by a magnet or an electromagnet, is not easy to corrode, and has long service life.

Alternatively, the other side surface of the bobbin 10 (i.e., the side surface of the bobbin 10 to which the rubber seal ring 20 is attached) is convex. Therefore, the contact area between the framework 10 and the rubber sealing ring 20 can be increased conveniently, and the connection between the framework and the rubber sealing ring is tighter.

Fig. 3 is a cross-sectional view of a seal ring according to an embodiment of the present invention. As shown in fig. 3, the other side surface of the frame 10 (i.e., the side surface of the frame 10 connected to the rubber sealing ring 20) is a circular arc convex surface, and the cross section of the annular rubber accommodating groove 10a is an arc shape. The arch shape here may include a minor arc arch, a major arc arch and a semicircular arch, the minor arc arch being an arch shape whose arc is smaller than the semicircular arc, the major arc arch being an arch shape whose arc is larger than the semicircular arc, and the semicircular arch being an arch shape whose arc is equal to the semicircular arc. In order to facilitate the installation of the sealing ring into the sealing groove 30, the size of the sealing ring is slightly smaller than that of the sealing groove, a small gap a (for example, a gap of 0.1mm to 0.5 mm) is formed between the side wall of the sealing groove 30 and the sealing ring, and the gap a can affect the assembly accuracy of the sealing ring to a certain extent, after the framework 10 is set to be of such a structure, the sealing ring is assembled into the sealing groove 30, and in the process that the sealing ring is tightly adhered to the sealing groove 30 by pressing the sealing ring, due to the shape of the framework 10, the framework 10 can deform to a certain extent in the width direction of the sealing groove 30, and the gap a can be reduced until the gap a disappears (namely, the gap a is reduced to 0) after the framework 10 deforms, so that the assembly.

The cross section of the annular glue holding groove 10a is preferably a minor arc arch, so that the condition that the maximum depth of the annular glue holding groove 10a is too large and the annular glue holding groove needs to be filled with more adhesive can be avoided.

As shown in fig. 3, the cross section of the rubber seal ring 20 may be arcuate, and the bottom edge of the arcuate is connected to the frame 10. The rubber seal ring 20 shown in fig. 3 has a cross section of a major arc bow. The arcuate cross-section of the rubber sealing ring 20 is more readily connected to the backbone 10.

The cross-section of the sealing ring may be symmetrical about a line m in which the height of the arch lies. As shown in fig. 3, the cross section of the rubber seal ring 20 and the cross section of the annular rubber accommodating groove 10a are both arcuate, and the heights of both are located on a straight line m. In the process of installing the sealing ring, the framework 10 can be approximately symmetrically deformed towards the side wall of the sealing groove 30 when the sealing ring is extruded.

The rubber sealing ring 20 can be made of any one of silicon rubber, ethylene propylene diene monomer, fluororubber, butyl rubber, acrylic rubber and natural rubber. The above list is not exhaustive, and the frame 10 may be made of other hard resins, and the rubber seal ring 20 may be made of other elastomer materials.

Alternatively, the sealing ring may be an integral injection moulded part. Form skeleton 10 and rubber seal ring 20 together through integrative injection moulding technique, can make both connect more closely to simple manufacture compares in making skeleton 10 and rubber seal ring 20 respectively, adopts integrative injection moulding not to need additionally to connect skeleton 10 and rubber seal ring 20. The integral injection molding technology can be double-color molding (double-color molding, also called double-injection molding, refers to molding by a double-color mold, the double-color mold is a mold for injecting two materials on the same injection molding machine, molding twice and demolding the product once, wherein the two materials can be two materials with different colors, or two materials with different hardness), and can also be insert molding (refers to a molding method for manufacturing an integrated product by filling a pre-prepared special material insert into the mold, injecting a molten material and bonding and solidifying the insert).

In another implementation manner of the embodiment of the present invention, the frame 10 and the rubber sealing ring 20 can be bonded together by respectively manufacturing the frame 10 and the rubber sealing ring 20 and then bonding the two together.

The embodiment of the utility model provides a still provide a fuel cell, this fuel cell includes any kind of sealing washer as before.

The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a sealing ring, its characterized in that, includes skeleton (10) and rubber seal ring (20), skeleton (10) with rubber seal ring (20) are confined loop configuration, skeleton (10) are platelike, a side of skeleton (10) has the edge annular that skeleton (10) extend holds gluey groove (10a), rubber seal ring (20) are fixed on the another side of skeleton (10).

2. A sealing ring according to claim 1, characterized in that the other side of the skeleton (10) is convex.

3. A seal ring according to claim 2, wherein the other side surface of the framework (10) is a circular arc convex surface, and the cross section of the annular glue accommodating groove (10a) is arc-shaped.

4. A ring seal according to claim 3, characterized in that the cross-section of the ring seal is symmetrical with respect to a line (m) on which the height of the arch lies.

5. A seal ring according to claim 1, characterized in that the skeleton (10) is a metallic or non-metallic structural part.

6. The seal ring of claim 5, wherein the metal is a ferromagnetic material.

7. A ring seal according to claim 1, characterized in that the rubber sealing ring (20) has an arcuate cross-section, the base of which is connected to the carcass (10).

8. A seal ring according to any one of claims 1 to 7, wherein the seal ring is an integral injection moulded part.

9. A seal ring according to any of claims 1 to 7, wherein the closed ring structure comprises a circular ring structure, an elliptical ring structure, a polygonal ring structure.

10. A fuel cell comprising the gasket according to any one of claims 1 to 9.