CN211515056U - Membrane frame for preparing proton exchange membrane of fuel cell - Google Patents
Membrane frame for preparing proton exchange membrane of fuel cell Download PDFInfo
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- CN211515056U CN211515056U CN201922009948.4U CN201922009948U CN211515056U CN 211515056 U CN211515056 U CN 211515056U CN 201922009948 U CN201922009948 U CN 201922009948U CN 211515056 U CN211515056 U CN 211515056U
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Abstract
The utility model discloses a membrane frame for preparing a proton exchange membrane of a fuel cell, which comprises a rectangular inner frame, wherein the outer side of the rectangular inner frame is provided with outer strips with the same length as the corresponding frames, and the outer strips are connected with the rectangular inner frame through detachable connecting pieces; the height of the outer edge strips is twice that of the rectangular inner frame, when the outer edge strips and the rectangular inner frame are combined together, one side edge of the rectangular inner frame is flush with one side edge of the outer edge strips, the other side edge of the rectangular inner frame is located on the middle plane of the outer edge strips, and the proton exchange membrane for processing is fastened on the middle plane. Through using the utility model discloses the membrane frame of making, through utilizing the size range that the membrane frame is injectd, the proton exchange membrane that the both sides spraying has the same PFSA resin thickness that operating personnel can be easily obtained, and is difficult for receiving the influence of other external factors.
Description
Technical Field
The utility model belongs to fuel cell makes anchor clamps field, concretely relates to membrane frame for preparation of fuel cell proton exchange membrane.
Background
The proton exchange membrane, which serves as a core component of a Proton Exchange Membrane Fuel Cell (PEMFC), not only serves as a proton channel, but also serves as a barrier to anode fuel and cathode oxide, preventing fuel and oxide from leaking between the two electrodes. At present, in laboratory research and small-scale production, a method of spraying a perfluorosulfonic acid (PFSA) resin solution on the surface of a PTFE substrate is mainly adopted to prepare a proton exchange membrane. Due to the difference of operators, the manufactured proton exchange membrane has the problems of uneven thickness, bubbles and the like.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present invention provides a membrane frame for preparing a proton exchange membrane for a fuel cell.
Realize above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
a membrane frame for preparing a proton exchange membrane of a fuel cell comprises a rectangular inner frame, wherein outer strips with the same length as the corresponding frame are arranged on the outer side of the rectangular inner frame, and the outer strips are connected with the rectangular inner frame through detachable connecting pieces; the height of the outer edge strips is twice that of the rectangular inner frame, when the outer edge strips and the rectangular inner frame are combined together, one side edge of the rectangular inner frame is flush with one side edge of the outer edge strips, the other side edge of the rectangular inner frame is located on the middle plane of the outer edge strips, and the proton exchange membrane for processing is fastened on the middle plane.
As a further improvement, the outer edge strips are not connected with the area of the rectangular inner frame is provided with non-closed exhaust holes.
As a further improvement of the present invention, the membrane frame for preparing a proton exchange membrane for a fuel cell, wherein the depth from the open end of the exhaust hole to the bottommost end of the exhaust hole is equal to half of the height of the outer edge strip.
As a further improvement of the utility model, the exhaust holes are U-shaped or rectangular.
As a further improvement, the outer edge strip is provided with a groove on the inner side surface of the rectangular inner frame, and the outer side surface of the rectangular inner frame is provided with a matched sealing ring at a position corresponding to the groove.
As a further improvement of the utility model, the rectangle inside casing with the outside strip pass through threaded connection spare and link to each other the rectangle inside casing with the corresponding position of outside strip on be equipped with and have the internal screw thread mounting hole.
As a further improvement of the utility model, the rectangular inner frame is connected with the outer edge strips of the same group.
The utility model has the advantages that: through using the utility model discloses the membrane frame of making, through utilizing the size range that the membrane frame is injectd, the proton exchange membrane that the both sides spraying has the same PFSA resin thickness that operating personnel can be easily obtained, and is difficult for receiving the influence of other external factors.
Drawings
FIG. 1 is an assembly diagram of an embodiment of the present invention;
fig. 2 is an exploded view of an embodiment of the present invention;
wherein: 1-rectangular inner frame, 2-outer edge, 3-exhaust hole, 4-groove, 5-sealing ring and 6-mounting hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following description is made in detail for the application of the principles of the present invention with reference to the accompanying drawings.
The membrane frame for preparing the proton exchange membrane of the fuel cell comprises a rectangular inner frame 1, wherein the outer side of the rectangular inner frame 1 is provided with outer strips 2 with the same length as the corresponding frame, and the outer strips 2 are connected with the rectangular inner frame 1 through detachable connecting pieces; the height of the outer edge strips 2 is twice that of the rectangular inner frame 1, when the outer edge strips 2 and the rectangular inner frame 1 are combined together, one side edge of the rectangular inner frame 1 is flush with one side edge of the outer edge strips 2, the other side edge of the rectangular inner frame 1 is located on the middle plane of the outer edge strips 2, and a proton exchange membrane for processing is fastened on the middle plane. After the PTFE base material for manufacturing the proton exchange membrane is fixed at the position of the middle plane by adopting the mould frame with the structure, the distances between the PTFE base material and a hot table and a spray head are kept consistent, and PFSA resin solution is sprayed on two sides, so that the proton exchange membrane with the same membrane thickness on the two sides can be obtained. And the membrane frame is adopted, so that the proton exchange membrane cannot influence the height of the membrane thickness due to overturning in the manufacturing process, and the membrane surface is not easily damaged due to the influence of other factors.
The area of the outer edge strip 2, which is not connected with the rectangular inner frame 1, is provided with non-closed exhaust holes 3 for exhausting in the manufacturing process and preventing the membrane surface from being damaged by bubbles.
As an embodiment of the present invention, the depth from the open end of the exhaust hole 3 to the bottom end of the exhaust hole 3 is equal to half of the height of the outer edge strip 2. For example, the exhaust holes 3 may be U-shaped or rectangular.
The inner side face of the outer edge strip 2, which is in contact with the rectangular inner frame 1, is provided with a groove 4, and the outer side face of the rectangular inner frame 1 is provided with a sealing ring 5 matched with the groove 4. The method is used for improving the tightness and sealing performance of the proton exchange membrane fastened by the membrane frame.
The embodiment of the utility model provides an in, rectangle inside casing 1 with outer strake 2 link to each other through threaded connection rectangle inside casing 1 with the corresponding position of outer strake 2 on be equipped with and have internal screw thread mounting hole 6.
In a second embodiment, as shown in fig. 2, the outer edge strip 2 of the present invention can be fixedly connected to two rectangular inner frames 1 at the same time, and the PTFE substrates located on the rectangular inner frames 1 are fixed in the middle plane of the film frame in a face-to-face manner.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A membrane frame for use in the preparation of a proton exchange membrane for a fuel cell, comprising: the frame comprises a rectangular inner frame (1), wherein outer side strips (2) with the same length as the corresponding frames are arranged on the outer side of the rectangular inner frame (1), and the outer side strips (2) are connected with the rectangular inner frame (1) through detachable connecting pieces; the height of the outer edge strips (2) is twice that of the rectangular inner frame (1), when the outer edge strips (2) and the rectangular inner frame (1) are combined together, one side edge of the rectangular inner frame (1) is flush with one side edge of the outer edge strips (2), the other side edge of the rectangular inner frame (1) is located on the middle plane of the outer edge strips (2), and a proton exchange membrane for processing is fastened on the middle plane.
2. A membrane frame for use in the preparation of a fuel cell proton exchange membrane according to claim 1, wherein: and non-closed exhaust holes (3) are formed in the region, which is not connected with the rectangular inner frame (1), of the outer edge strip (2).
3. A membrane frame for use in the preparation of a fuel cell proton exchange membrane according to claim 2, wherein: the depth from the opening end of the exhaust hole (3) to the bottommost end of the exhaust hole (3) is equal to half of the height of the outer edge strip (2).
4. A membrane frame for use in the preparation of a fuel cell proton exchange membrane according to claim 2 or 3, wherein: the exhaust holes (3) are U-shaped or rectangular.
5. A membrane frame for use in the preparation of a fuel cell proton exchange membrane according to claim 1, wherein: the outer edge strips (2) and the inner side face, in contact with the rectangular inner frame (1), are provided with grooves (4), and the outer side face of the rectangular inner frame (1) is provided with a sealing ring (5) matched with the outer side face of the rectangular inner frame in a position corresponding to the grooves (4).
6. A membrane frame for use in the preparation of a fuel cell proton exchange membrane according to claim 1, wherein: the rectangular inner frame (1) is connected with the outer edge strips (2) through threaded connecting pieces, and mounting holes (6) with internal threads are formed in the positions, corresponding to the rectangular inner frame (1) and the outer edge strips (2), of the outer edge strips.
7. A membrane frame for use in the preparation of a proton exchange membrane for a fuel cell according to any one of claims 1, 2, 3, 5, 6, wherein: comprises two rectangular inner frames (1) connected with the outer edge strips (2) of the same group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922009948.4U CN211515056U (en) | 2019-11-20 | 2019-11-20 | Membrane frame for preparing proton exchange membrane of fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922009948.4U CN211515056U (en) | 2019-11-20 | 2019-11-20 | Membrane frame for preparing proton exchange membrane of fuel cell |
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| CN211515056U true CN211515056U (en) | 2020-09-18 |
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| CN201922009948.4U Active CN211515056U (en) | 2019-11-20 | 2019-11-20 | Membrane frame for preparing proton exchange membrane of fuel cell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114388832A (en) * | 2021-12-21 | 2022-04-22 | 欣和智达能源科技发展(浙江)有限公司 | Spraying jig for membrane electrode of proton exchange membrane fuel cell |
-
2019
- 2019-11-20 CN CN201922009948.4U patent/CN211515056U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114388832A (en) * | 2021-12-21 | 2022-04-22 | 欣和智达能源科技发展(浙江)有限公司 | Spraying jig for membrane electrode of proton exchange membrane fuel cell |
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