Detachable electric pile end plate

Abstract

The utility model discloses a detachable galvanic pile end plate, which comprises a first end plate and a second end plate, the outer wall of the first end plate and the outer wall of the second end plate are respectively provided with two sealing gasket grooves, the inner walls of the four sealing gasket grooves are fixedly connected with connecting plates, and the outer walls of the connecting plates are provided with joint mechanisms. According to the utility model, the connecting plate belongs to an independent structure, can be tapped to the bottom, and is connected with the first end plate and the second end plate through screws, so that the size specification of an interface can be changed by replacing the connecting plate under the condition that the galvanic pile is not disassembled, various debugging tests can be conveniently completed, and meanwhile, the air tightness is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of battery stacks, and in particular to a detachable battery stack end plate. Background Art

[0002] Hydrogen fuel cells have entered the stage of industrial development and application due to their high efficiency and environmental protection. In practical applications, a certain number of single cells need to be combined through a certain design to meet electrical application requirements such as power, voltage and current, thus forming a fuel cell stack.

[0003] When understanding the basic performance of the fuel cell stack, the test can provide important information such as battery life, stability, and safety. These test data can also be used to demonstrate whether the fuel cell stack has achieved the expected design goals.

[0004] In the prior art, in the design of hydrogen power generation stack end plates, the inlets of hydrogen, air and water often have design difficulties and defects in airtightness. Often when the interface threads of the entire end plate are tapped, the threads cannot be tapped to the bottom, resulting in a risk of airtightness leakage. Therefore, we propose a detachable stack end plate to solve the above problem. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a detachable stack end plate.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A detachable battery stack end plate comprises a first end plate and a second end plate, wherein the outer walls of the first end plate and the second end plate are each provided with two sealing gasket grooves, the inner walls of the four sealing gasket grooves are each fixedly connected with a connecting plate, and the outer walls of the connecting plates are provided with a joint mechanism.

[0008] Preferably, the joint mechanism includes an air inlet pipe, the outer wall of the connecting plate is fixedly connected to the outer wall of the air inlet pipe, the outer wall of the connecting plate is fixedly connected to a water inlet pipe, the outer wall of the connecting plate is fixedly connected to a hydrogen inlet pipe, and the first end plate, the second end plate and the outer wall of the connecting plate are all provided with a plurality of connecting holes, and the plurality of connecting plates are respectively fixed to the first end plate and the second end plate by setting a plurality of connecting holes and existing screws.

[0009] Preferably, the outer walls of the first end plate and the second end plate are both provided with a plurality of stack rod fixing holes, and the stack rod fixing holes are provided to assist the existing stack rods to pass through the first end plate and the second end plate.

[0010] Preferably, bipolar plate electrode outlets are provided on outer walls of the first end plate and the second end plate.

[0011] Preferably, the outer walls of the first end plate and the second end plate are each provided with a plurality of docking holes, and the plurality of docking holes are respectively located at one end of the air inlet pipe, the water inlet pipe and the hydrogen inlet pipe.

[0012] Preferably, a sealing gasket is placed on the inner wall of the sealing gasket groove, and the outer wall of the sealing gasket is in contact with the outer wall of the connecting plate. By providing the sealing gasket, the sealing between the connecting plate and the sealing gasket groove is increased to prevent leakage.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] The connecting plate of this solution is an independent structure. The thread can be tapped to the bottom and is connected to the first end plate and the second end plate with screws. Therefore, the size of the interface can be changed by replacing the connecting plate without disassembling the battery stack, which facilitates various debugging tests while ensuring airtightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a front view stereoscopic structural diagram of a detachable stack end plate proposed by the utility model;

[0017] Figure 2 This is a rear-view stereoscopic structural schematic diagram of a detachable stack end plate proposed by the utility model;

[0018] Figure 3 This is a side view structural schematic diagram of a detachable stack end plate proposed by the utility model;

[0019] Figure 4 The utility model is a schematic diagram of a top view of the structure of a detachable stack end plate.

[0020] In the figure: 1. First end plate; 2. Second end plate; 3. Connecting plate; 4. Air inlet pipe; 5. Water inlet pipe; 6. Hydrogen inlet pipe; 7. Connecting hole; 8. Stack tie rod fixing hole; 9. Bipolar plate electrode outlet. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Depend on Figure 1-Figure 4 As shown, it relates to a detachable battery stack end plate, including a first end plate 1 and a second end plate 2. The outer walls of the first end plate 1 and the second end plate 2 are each provided with two sealing gasket grooves, the inner walls of the four sealing gasket grooves are each fixedly connected with a connecting plate 3, a sealing gasket is placed on the inner wall of the sealing gasket groove, the outer wall of the sealing gasket is in contact with the outer wall of the connecting plate 3, the connecting plate 3 is located in the sealing gasket groove, and the sealing is increased by the sealing gasket.

[0023] The outer wall of the connecting plate 3 is provided with a joint mechanism, which includes an air inlet pipe 4. The outer wall of the connecting plate 3 is fixedly connected with the outer wall of the air inlet pipe 4. The outer wall of the connecting plate 3 is fixedly connected with a water inlet pipe 5. The outer wall of the connecting plate 3 is fixedly connected with a hydrogen inlet pipe 6. The connecting plate 3 assists in the installation and support of the air inlet pipe 4, the water inlet pipe 5 and the hydrogen inlet pipe 6.

[0024] The outer walls of the first end plate 1 and the second end plate 2 are each provided with a plurality of docking holes, and the plurality of docking holes are respectively located at one end of the air inlet pipe 4, the water inlet pipe 5 and the hydrogen inlet pipe 6; the outer walls of the first end plate 1, the second end plate 2 and the connecting plate 3 are each provided with a plurality of connecting holes 7, and the inner walls of the plurality of connecting holes 7 are threadedly connected with existing screws. When the screws pass through the connecting holes 7 on the plurality of connecting plates 3 and then screwed into the connecting holes 7 on the first end plate 1 and the second end plate 2, the plurality of connecting plates 3 are respectively fixed to the first end plate 1 and the second end plate 2; the outer walls of the first end plate 1 and the second end plate 2 are each provided with a plurality of stack rod fixing holes 8, and the outer walls of the first end plate 1 and the second end plate 2 are each provided with a bipolar plate electrode outlet 9.

[0025] Working principle: When in use, the first end plate 1, the second end plate 2 and the connecting plate 3 are fixedly connected by means of multiple screws and multiple connecting holes 7, and the first end plate 1, the second end plate 2 and the connecting plate 3 are all made of glass fiber reinforced resin; when fixed by the existing screws, the joint mechanism and the battery stack are sealed and installed, and when the battery stack needs to be disassembled and replaced, the screws on the multiple connecting holes 7 can be removed to complete the replacement of the battery stack; since the connecting plate 3 is an independent structure, the thread tapping can be to the bottom, and it is connected to the first end plate 1 and the second end plate 2 by screws. When the air inlet pipe 4, the water inlet pipe 5 and the hydrogen inlet pipe 6 are installed, the first end plate 1, the second end plate 2 and the connecting plate 3 are sealed by a sealing gasket.

[0026] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A detachable stack end plate, comprising a first end plate (1) and a second end plate (2), characterized in that: The outer walls of the first end plate (1) and the second end plate (2) are each provided with two sealing gasket grooves, the inner walls of the four sealing gasket grooves are each fixedly connected with a connecting plate (3), and the outer wall of the connecting plate (3) is provided with a joint mechanism.

2. A detachable stack end plate according to claim 1, characterized in that: The joint mechanism comprises an air inlet pipe (4), the outer wall of the connecting plate (3) and the outer wall of the air inlet pipe (4) are fixedly connected to each other, the outer wall of the connecting plate (3) is fixedly connected to a water inlet pipe (5), the outer wall of the connecting plate (3) is fixedly connected to a hydrogen inlet pipe (6), and the outer walls of the first end plate (1), the second end plate (2) and the connecting plate (3) are all provided with a plurality of connection holes (7).

3. A detachable stack end plate according to claim 1, characterized in that: The outer walls of the first end plate (1) and the second end plate (2) are both provided with a plurality of stack tie rod fixing holes (8).

4. A detachable stack end plate according to claim 1, characterized in that: The outer walls of the first end plate (1) and the second end plate (2) are both provided with bipolar plate electrode outlets (9).

5. A detachable stack end plate according to claim 2, characterized in that: The outer walls of the first end plate (1) and the second end plate (2) are both provided with a plurality of docking holes, and the plurality of docking holes are respectively located at one end of the air inlet pipe (4), the water inlet pipe (5) and the hydrogen inlet pipe (6).

6. A detachable stack end plate according to claim 1, characterized in that: A sealing gasket is placed on the inner wall of the sealing gasket groove, and the outer wall of the sealing gasket is in contact with the outer wall of the connecting plate (3).

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