CN114636518A - Membrane electrode airtightness testing mechanism and membrane electrode detection device - Google Patents
Membrane electrode airtightness testing mechanism and membrane electrode detection device Download PDFInfo
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- CN114636518A CN114636518A CN202011482753.2A CN202011482753A CN114636518A CN 114636518 A CN114636518 A CN 114636518A CN 202011482753 A CN202011482753 A CN 202011482753A CN 114636518 A CN114636518 A CN 114636518A
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- membrane electrode
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
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- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides a membrane electrode airtightness testing mechanism and a membrane electrode detection device, which relate to the technical field of membrane electrode testing, and the membrane electrode airtightness testing mechanism provided by the invention comprises: the sealing assembly is used for sealing a detection area of the membrane electrode; the elastic member is mounted to the sealing member, and the elastic member has a tendency to separate the sealing member from the membrane electrode. The membrane electrode airtightness testing mechanism provided by the invention can relieve the technical problem that the sealing assembly and the membrane electrode are adhered and cannot be separated in the prior art, and the membrane electrode and the sealing assembly can be separated through the elastic assembly, so that the membrane electrode and the sealing assembly are not required to be separated manually, and the membrane electrode testing time is shortened.
Description
Technical Field
The invention relates to the technical field of membrane electrode testing, in particular to a membrane electrode airtightness testing mechanism and a membrane electrode testing device.
Background
A Membrane Electrode Assembly (MEA) as a core component of a Proton Exchange Membrane Fuel Cell (PEMFC) includes a Proton Exchange Membrane (PEM), an electrocatalyst layer, and a Gas Diffusion Layer (GDL). The sealing structure and performance of the membrane electrode assembly are key factors affecting the performance of the fuel cell. The quality of the membrane electrode directly affects the performance of the stack, so that in the stack assembly process, the single membrane electrode needs to be subjected to airtight detection before stacking, and the risk of leakage of the stack assembly is reduced by ensuring the airtightness of the single membrane electrode. However, in the past, the sealing ring is adhered to the frame of the membrane electrode during testing, and the membrane electrode needs to be manually removed in a time-consuming manner, so that the detection efficiency of the membrane electrode is improved.
Disclosure of Invention
The invention aims to provide a membrane electrode airtightness testing mechanism and a membrane electrode detection device, so as to solve the technical problem that a sealing assembly and a membrane electrode in the prior art cannot be separated due to adhesion.
In a first aspect, the present invention provides a membrane electrode air tightness testing mechanism, comprising: the membrane electrode assembly comprises a sealing assembly and an elastic assembly, wherein the sealing assembly is used for sealing a detection area of the membrane electrode;
the elastomeric assembly is mounted to the seal assembly and has a tendency to separate the seal assembly from the membrane electrode.
With reference to the first aspect, the present disclosure provides a first possible implementation manner of the first aspect, wherein the elastic assembly includes a spring plunger, the spring plunger is mounted to the sealing assembly, and the spring plunger is configured to abut against the membrane electrode.
With reference to the first possible implementation manner of the first aspect, the present invention provides a second possible implementation manner of the first aspect, wherein the elastic assembly further includes a soft contact, and the soft contact is connected to an end portion of the spring plunger, which is close to the membrane electrode.
With reference to the first aspect, the present disclosure provides a third possible implementation manner of the first aspect, wherein the sealing assembly includes a pressure plate, and the elastic assembly is mounted to the pressure plate.
With reference to the third possible implementation manner of the first aspect, the present invention provides a fourth possible implementation manner of the first aspect, wherein the sealing assembly further includes a sealing ring, and the sealing ring is connected to the pressure plate.
With reference to the fourth possible implementation manner of the first aspect, the present invention provides a fifth possible implementation manner of the first aspect, wherein the pressure plate is provided with a test air port, and the seal ring surrounds the test air port.
In combination with the fourth possible embodiment of the first aspect, the present invention provides a sixth possible embodiment of the first aspect, wherein the elastic assembly is provided in plurality, and the plurality of elastic assemblies are arranged at intervals around the sealing ring.
With reference to the third possible implementation manner of the first aspect, the present invention provides a seventh possible implementation manner of the first aspect, wherein the membrane electrode airtightness testing mechanism further includes a bearing plate, and the bearing plate has a bearing end surface for bearing the membrane electrode;
the sealing assembly and the bearing plate are arranged at intervals, and a clamping area for clamping the membrane electrode is formed between the sealing assembly and the bearing plate.
With reference to the seventh possible implementation manner of the first aspect, the present invention provides an eighth possible implementation manner of the first aspect, wherein the pressure plate is parallel to the bearing end face.
In a second aspect, the present invention provides a membrane electrode test device, which comprises the membrane electrode air tightness test mechanism provided in the first aspect.
The embodiment of the invention has the following beneficial effects: the detection area of the membrane electrode is sealed through the sealing assembly, the elastic assembly is installed on the sealing assembly, the elastic assembly has the tendency of separating the sealing assembly from the membrane electrode, the membrane electrode can be separated from the sealing assembly through the elastic assembly, the membrane electrode is not required to be manually separated from the sealing assembly, and the membrane electrode testing time is shortened.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of a sealing assembly and an elastic assembly of a membrane electrode airtightness testing mechanism provided in an embodiment of the present invention;
FIG. 2 is a schematic diagram of a membrane electrode airtightness testing mechanism and a membrane electrode provided in an embodiment of the present invention in a separated state;
FIG. 3 is a schematic diagram of a membrane electrode airtightness testing mechanism and a membrane electrode provided in an embodiment of the present invention in a sealed state;
FIG. 4 is a schematic diagram of the elastic component of the membrane electrode airtightness testing mechanism according to the embodiment of the present invention;
fig. 5 is a schematic diagram of a sealing assembly of a membrane electrode airtightness testing mechanism according to an embodiment of the present invention.
Icon: 100-a seal assembly; 110-a platen; 111-test gas port; 120-sealing ring; 200-a resilient component; 210-a spring plunger; 220-soft contact; 300-a carrier plate; 1-membrane electrode.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "physical quantity" in the formula, unless otherwise noted, is understood to mean a basic quantity of a basic unit of international system of units, or a derived quantity derived from a basic quantity by a mathematical operation such as multiplication, division, differentiation, or integration.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1, fig. 2 and fig. 3, the membrane electrode air tightness testing mechanism provided by the embodiment of the present invention includes: a sealing assembly 100 and an elastic assembly 200, the sealing assembly 100 being used to seal a detection region of the membrane electrode 1;
the elastic member 200 is mounted to the sealing member 100, and the elastic member 200 has a tendency to separate the sealing member 100 from the membrane electrode 1.
During the air tightness test, the sealing assembly 100 is tightly attached to the membrane electrode 1, and during the test, the elastic assembly 200 is kept in a compressed state. When the testing is completed, the elastic assembly 200 pushes the membrane electrode 1 to be separated from the sealing assembly 100, thereby preventing the membrane electrode 1 from being adhered to the sealing assembly 100. When the test is finished, the elastic assembly 200 drives the membrane electrode 1 to be separated from the sealing assembly 100, so that the membrane electrode 1 does not need to be manually taken down, the blanking time is saved, and the detection efficiency is improved.
As shown in fig. 1, 2, 3 and 4, the elastic assembly 200 includes a spring plunger 210, the spring plunger 210 is mounted to the seal assembly 100, and the spring plunger 210 is used to abut against the membrane electrode 1.
During the airtightness detection, the end of the spring plunger 210 abuts against the membrane electrode 1. When the sealing assembly 100 is attached to the membrane electrode 1, the spring plunger 210 is stressed and compressed; when the test is completed, the spring plunger 210 rebounds to elongate, thereby driving the membrane electrode 1 to separate from the seal assembly 100.
Further, the elastic assembly 200 further includes a soft contact 220, and the soft contact 220 is connected to an end of the spring plunger 210 near the membrane electrode 1.
Specifically, the flexible contact 220 is made of a flexible or elastic material, and the flexible contact 220 abuts against the membrane electrode 1, so that the frame of the membrane electrode 1 is prevented from being damaged by pressure.
As shown in fig. 1, 2, 3 and 5, the sealing assembly 100 includes a pressure plate 110, and an elastic assembly 200 is mounted to the pressure plate 110.
The sealing assembly 100 further includes a sealing ring 120, and the sealing ring 120 is connected to the pressure plate 110. When the air tightness is detected, the sealing ring 120 is tightly attached to the membrane electrode 1; at the end of the test, the spring plunger 210 pushes the membrane electrode 1 to move in a direction away from the pressing plate 110, so that the membrane electrode 1 is separated from the sealing ring 120.
As shown in fig. 5, the pressure plate 110 has a test gas port 111, and the seal ring 120 surrounds the test gas port 111.
Specifically, the gas flows through the test gas port 111 to perform the gas tightness test, and the seal ring 120 surrounds the test gas port 111 and is sealed between the test gas port 111 and the membrane electrode 1 by the seal ring 120.
As shown in fig. 1, 2, 3 and 5, the plurality of elastic members 200 are provided, and the plurality of elastic members 200 are spaced around the seal ring 120.
Specifically, four elastic assemblies 200 are provided, the four elastic assemblies 200 are installed at four corners of the pressure plate 110 in a one-to-one correspondence manner, and the four elastic assemblies 200 support the membrane electrode 1, so that the frame of the membrane electrode 1 is uniformly stressed.
As shown in fig. 2 and 3, the membrane electrode airtightness testing mechanism further includes a carrier plate 300, where the carrier plate 300 has a carrier end face for carrying the membrane electrode 1;
the sealing assembly 100 and the carrier plate 300 are spaced apart from each other, and a clamping area for clamping the membrane electrode 1 is formed between the sealing assembly 100 and the carrier plate 300.
When the membrane electrode 1 is detected, the sealing assembly 100 and the carrier plate 300 are close to each other, and the membrane electrode 1 is clamped between the sealing assembly 100 and the carrier plate 300; when the test is finished, the sealing assembly 100 and the carrier plate 300 are moved away from each other, and the elastic assembly 200 pushes the membrane electrode 1 to be separated from the sealing assembly 100.
Specifically, the pressing plate 110 is parallel to the bearing end face, the membrane electrode 1 is clamped between the sealing assembly 100 and the bearing plate 300, and the pressing plate 110 and the bearing end face of the bearing plate 300 jointly clamp the membrane electrode 1 to prevent the membrane electrode 1 from bending under stress.
Example two
As shown in fig. 1, fig. 2 and fig. 3, a membrane electrode detection device provided by an embodiment of the present invention includes a membrane electrode airtightness testing mechanism provided by the first embodiment.
The membrane electrode detection device provided by the embodiment includes a membrane electrode airtightness testing mechanism, so that the membrane electrode detection device has the beneficial effects of the membrane electrode airtightness testing mechanism, and details are not repeated herein.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A membrane electrode seal test mechanism, comprising: a sealing assembly (100) and an elastic assembly (200), wherein the sealing assembly (100) is used for sealing a detection area of the membrane electrode (1);
the elastomeric assembly (200) is mounted to the seal assembly (100) and the elastomeric assembly (200) has a tendency to separate the seal assembly (100) from the membrane electrode (1).
2. A membrane electrode seal test mechanism according to claim 1, characterized in that the resilient assembly (200) comprises a spring plunger (210), the spring plunger (210) being mounted to the seal assembly (100), and the spring plunger (210) being adapted to abut the membrane electrode (1).
3. A membrane electrode air-tightness testing mechanism according to claim 2, characterized in that the elastic assembly (200) further comprises a soft contact (220), and the soft contact (220) is connected to the end of the spring plunger (210) near the membrane electrode (1).
4. A membrane electrode hermetic test mechanism according to claim 1, wherein the seal assembly (100) comprises a pressure plate (110), the elastic assembly (200) being mounted to the pressure plate (110).
5. A membrane electrode seal test mechanism according to claim 4, characterized in that the seal assembly (100) further comprises a seal ring (120), the seal ring (120) being connected to the pressure plate (110).
6. A membrane electrode air-tightness testing mechanism according to claim 5, characterized in that the pressure plate (110) is provided with a test air port (111), and the sealing ring (120) encloses the test air port (111).
7. A membrane electrode seal test mechanism according to claim 5, wherein said elastic member (200) is provided in plurality, and a plurality of said elastic members (200) are provided at intervals around said seal ring (120).
8. A membrane electrode tightness testing mechanism according to claim 4, characterized in that it further comprises a carrier plate (300), said carrier plate (300) having a carrier end face carrying said membrane electrode (1);
the sealing assembly (100) and the bearing plate (300) are arranged at intervals, and a clamping area for clamping the membrane electrode (1) is formed between the sealing assembly (100) and the bearing plate (300).
9. A membrane electrode tightness testing mechanism according to claim 8, characterized in that the pressure plate (110) is parallel to the load-bearing end face.
10. A membrane electrode test device, characterized in that it comprises a membrane electrode air tightness test mechanism according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011482753.2A CN114636518A (en) | 2020-12-15 | 2020-12-15 | Membrane electrode airtightness testing mechanism and membrane electrode detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011482753.2A CN114636518A (en) | 2020-12-15 | 2020-12-15 | Membrane electrode airtightness testing mechanism and membrane electrode detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114636518A true CN114636518A (en) | 2022-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011482753.2A Pending CN114636518A (en) | 2020-12-15 | 2020-12-15 | Membrane electrode airtightness testing mechanism and membrane electrode detection device |
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| Country | Link |
|---|---|
| CN (1) | CN114636518A (en) |
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2020
- 2020-12-15 CN CN202011482753.2A patent/CN114636518A/en active Pending
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