Test connection manifold of metal air inlet end plate fuel cell

Abstract

The utility model discloses a test connection manifold of a fuel cell with a metal air inlet end plate, which is used for being connected to the air inlet end plate and comprises an adapter plate and a manifold structure, the air inlet end plate comprises a plate body made of metal materials and an air inlet piece made of plastic materials, and the air inlet piece is provided with an oxygen channel, a cooling liquid channel and a hydrogen channel. The gas inlet piece is fixed to the plate body, the adapter plate is made of insulating plastic and fixed to one side of the plate body, openings correspondingly communicated with the oxygen channel, the cooling liquid channel and the hydrogen channel are formed in the adapter plate, the manifold structure is fixed to the side, away from the plate body, of the adapter plate, and the manifold structure is fixed to the side, away from the plate body, of the adapter plate. And the manifold structure is communicated with the oxygen channel, the cooling liquid channel and the hydrogen channel. In the application, the manifold structure and the air inlet end plate are not conducted and are insulated, so that the performance of the galvanic pile can be tested more accurately.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cells, in particular to a test connection manifold of a metal air intake end plate fuel cell. Background Art

[0002] A fuel cell is a power generation device that converts chemical energy in a fuel cell into electrical energy through an electrochemical reaction. It has the advantages of high energy conversion efficiency, zero emissions, and no noise. The current fuel cell intake end plate is made of plastics such as PPS / PEEK, or metals such as aluminum. After the stack is assembled, it needs to be connected to air and water for electrical performance testing. The manifold serves as the inlet and outlet channel for hydrogen, oxygen, and cooling water. The manifold is fixed to the stack with bolts, and the manifold is then connected to a braided silicone tube and finally connected to the test equipment.

[0003] In the prior art, the connection between the manifold and the braided silicone tube is a standard part and is made of stainless steel. During installation, the standard part is welded to the stainless steel plate, and then the stainless steel plate is fixed to the intake end plate by bolts. This will cause direct conductive connection between the manifold and the intake end plate, resulting in inaccurate electrical performance testing of the fuel cell stack. Utility Model Content

[0004] The utility model aims to provide a test connection manifold for a metal air intake end plate fuel cell to ensure accurate testing of the electrical performance of the fuel cell stack.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A test connection manifold for a metal air intake end plate fuel cell is used to be connected to the air intake end plate, and includes an adapter plate and a manifold structure. The air intake end plate includes a plate body made of metal material and an air intake member made of plastic material, the air intake member is provided with an oxygen channel, a coolant channel and a hydrogen channel, the air intake member is fixed to the plate body, the adapter plate is made of insulating plastic, the adapter plate is fixed to one side of the plate body, and the adapter plate is provided with openings corresponding to the oxygen channel, the coolant channel and the hydrogen channel, the manifold structure is fixed to a side of the adapter plate away from the plate body, and the manifold structure is connected to the oxygen channel, the coolant channel and the hydrogen channel.

[0007] Preferably, the adapter plate is threadedly connected to the plate body via a first bolt.

[0008] Preferably, a countersunk hole is provided on the adapter plate, and the first bolt passes through the countersunk hole and is threadedly connected to the plate body.

[0009] Preferably, the manifold structure is threadedly connected to the adapter plate via a second bolt.

[0010] Preferably, the second bolt is made of plastic material.

[0011] Preferably, the second bolt is fixed to the adapter plate by thread glue.

[0012] Preferably, the adapter plate and the plate body are sealed and connected via a first sealing ring.

[0013] Preferably, the manifold structure and the adapter plate are sealed and connected via a second sealing ring.

[0014] Preferably, the first sealing ring and the second sealing ring are made of rubber material.

[0015] Compared with the prior art, the test connection manifold of a metal intake end plate fuel cell in the embodiment of the utility model has the following beneficial effects:

[0016] In the utility model, the air intake end plate includes a plate body made of metal material and an air intake part made of plastic material, the adapter plate is made of insulating plastic, the adapter plate is fixed on the plate body, and the manifold structure is fixed on the adapter plate. At the same time, the air intake part is made of plastic material, and the manifold structure is connected to the air intake part. Therefore, there is no conduction between the manifold structure and the air intake end plate, and the two are insulated, so that the performance of the fuel cell stack can be tested more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereogram of an embodiment of the utility model;

[0018] Figure 2 It is an exploded view of an embodiment of the utility model.

[0019] In the figure, 1. plate body; 2. air intake part; 3. adapter plate; 4. manifold structure; 5. first bolt; 6. countersunk hole; 7. second bolt; 8. first sealing ring; 9. second sealing ring. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] In the description of the present utility model, it should be understood that the wording "comprising" used in the present utility model specification refers to the presence of the features, integers, steps, operations, parts / components and / or assemblies, but does not exclude the presence or addition of one or more other features, integers, steps, operations, parts / components, assemblies and / or their groups. It should be understood that when we say that a part / component is "connected" to another part / component, it can be directly connected to the other part / component, or there can be intermediate parts / components. The wording "and / or" used here includes all or any unit and all combinations of one or more associated listed items.

[0022] like Figure 1 and Figure 2 As shown, the utility model relates to a test connection manifold of a metal air intake end plate fuel cell, which is used to be connected to the air intake end plate, and includes an adapter plate 3 and a manifold structure 4, wherein the air intake end plate includes a plate body 1 of metal material and an air intake member 2 of plastic material, wherein the air intake member 2 is provided with an oxygen channel, a coolant channel and a hydrogen channel, wherein the air intake member 2 is fixed to the plate body 1, wherein the adapter plate 3 is made of insulating plastic, wherein the adapter plate 3 is fixed to one side of the plate body 1, and wherein the adapter plate 3 is provided with openings corresponding to the oxygen channel, the coolant channel and the hydrogen channel, wherein the manifold structure 4 is fixed to a side of the adapter plate 3 away from the plate body 1, and wherein the manifold structure 4 is connected with the oxygen channel, the coolant channel and the hydrogen channel.

[0023] In the utility model, the plate body 1 is made of metal material, the adapter plate 3 is made of insulating plastic, the adapter plate 3 is fixed on the plate body 1, and the manifold structure 4 is fixed on the adapter plate 3. At the same time, the air intake part 2 is made of plastic material, and the manifold structure 4 is connected to the air intake part 2. Therefore, there is no conduction between the manifold structure 4 and the air intake end plate, and the two are insulated, so that the performance of the fuel cell stack can be tested more accurately.

[0024] In this embodiment, the adapter plate 3 is threadedly connected to the plate body 1 through the first bolt 5 to secure the adapter plate 3 to the plate body 1, thereby ensuring the stability of the test connection manifold of the metal intake end plate fuel cell.

[0025] In this embodiment, a countersunk hole 6 is formed on the adapter plate 3 , and the first bolt 5 passes through the countersunk hole 6 and is threadedly connected to the plate body 1 .

[0026] By opening a countersunk hole 6 on the adapter plate 3, the first bolt 5 can pass through the countersunk hole 6 and be fixed to the plate body 1. The first bolt 5 will not protrude outside the adapter plate 3, so it is not easy to conduct with the manifold structure 4, ensuring insulation. Therefore, the first bolt 5 can use a metal bolt or a plastic bolt.

[0027] In this embodiment, the manifold structure 4 is threadedly connected to the adapter plate 3 via a second bolt 7 .

[0028] Specifically, the second bolt 7 can be made of plastic or metal. When a metal second bolt 7 is used, it is necessary to ensure that the distance between the end of the second bolt 7 and the plate body 1 meets the insulation distance.

[0029] Preferably, the second bolt 7 is fixed to the adapter plate 3 by thread glue, so as to make the connection between the manifold structure 4 and the adapter plate 3 more stable.

[0030] In this embodiment, the adapter plate 3 and the plate body 1 are sealed and connected via a first sealing ring 8 to ensure that no leakage occurs therebetween.

[0031] In this embodiment, the manifold structure 4 and the adapter plate 3 are sealed and connected via a second sealing ring 9 to ensure that no leakage occurs between the two.

[0032] In this embodiment, the first sealing ring 8 and the second sealing ring 9 are made of rubber material to have better sealing performance and longer service life.

[0033] In summary, the embodiment of the utility model provides a test connection manifold for a metal intake end plate fuel cell, which has a reliable and stable structure, is easy to install, can achieve good insulation, and can better test the performance of the fuel cell stack.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A test connection manifold for a metal intake end plate fuel cell, used to connect to an intake end plate, characterized in that: It includes an adapter plate and a manifold structure, the air intake end plate includes a plate body made of metal material and an air intake member made of plastic material, the air intake member is provided with an oxygen channel, a coolant channel and a hydrogen channel, the air intake member is fixed on the plate body, the adapter plate is made of insulating plastic, the adapter plate is fixed on one side of the plate body, and the adapter plate is provided with openings corresponding to the oxygen channel, the coolant channel and the hydrogen channel, the manifold structure is fixed on a side of the adapter plate away from the plate body, and the manifold structure is connected with the oxygen channel, the coolant channel and the hydrogen channel.

2. The test connection manifold of the metal intake end plate fuel cell according to claim 1, characterized in that: The adapter plate is threadedly connected to the plate body via a first bolt.

3. The test connection manifold of the metal intake end plate fuel cell according to claim 2, characterized in that: The adapter plate is provided with a countersunk hole, and the first bolt passes through the countersunk hole and is threadedly connected with the plate body.

4. The test connection manifold of the metal intake end plate fuel cell according to claim 1, characterized in that: The manifold structure is threadedly connected to the adapter plate via a second bolt.

5. The test connection manifold of the metal intake end plate fuel cell according to claim 4, characterized in that: The second bolt is made of plastic material.

6. The test connection manifold of the metal intake end plate fuel cell according to claim 5, characterized in that: The second bolt is fixed to the adapter plate by thread glue.

7. The test connection manifold of the metal intake end plate fuel cell according to claim 1, characterized in that: The adapter plate and the plate body are sealed and connected via a first sealing ring.

8. The test connection manifold of the metal intake end plate fuel cell according to claim 7, characterized in that: The manifold structure and the adapter plate are sealed and connected via a second sealing ring.

9. The test connection manifold of the metal intake end plate fuel cell according to claim 8, characterized in that: The first sealing ring and the second sealing ring are made of rubber material.

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