A gas path connector structure for hydrogen fuel cell testing
The design of the split-structure connector fixing ring and clamp solves the problem of complex gas circuit connection of hydrogen fuel cell components, and achieves the effect of rapid adaptation and disassembly.
Patent Information
- Application Number
- CN202522279273.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-28
AI Technical Summary
Existing hydrogen fuel cell components have complex gas path connections that cannot be quickly adapted, and fixed interface sizes cannot be adjusted, resulting in inconvenient connection and difficult disassembly.
The connector retaining ring and clamp design with a split structure, combined with components such as limiting bosses, limiting surfaces, and sealing rings, enables quick switching and a sealed connection.
It enables rapid and reliable connection and disassembly between hydrogen fuel cell components, ensuring the sealing and flexible adaptation of gas circuit interfaces.
Smart Images
Figure CN224680348U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of hydrogen fuel cell testing technology, and relates to the structure of a gas circuit connector for hydrogen fuel cell testing. Background Technology
[0002] During system-level testing, different components of a hydrogen fuel cell need to be interconnected via gas paths. This is typically achieved by connecting the connectors on different components using hose end caps and clamps.
[0003] The end caps and parts on each component are usually machined as a single piece, which is quite complex. Once the end caps are machined, the interface size is fixed and cannot be adjusted according to requirements, thus failing to achieve the goal of quick adaptation of the air circuit interface. Summary of the Invention
[0004] The purpose of this invention is to provide a gas circuit connector structure for hydrogen fuel cell testing, which can solve the above-mentioned problems and is quick and easy to disassemble.
[0005] According to the technical solution provided by this utility model: a gas circuit connector structure for hydrogen fuel cell testing includes a female gas circuit connector head, the upper part of which is connected to a male gas circuit connector head via a connector fixing ring and a clamp, and the lower part of which is connected to a female gas circuit connector head mounting base. A sealing element is provided between the female gas circuit connector head, the male gas circuit connector head, and the female gas circuit connector head mounting base. A limiting boss is provided on the lower part of the outer periphery of the male gas circuit connector head, and a second air hole is provided in the female gas circuit connector head. The second air hole is stepped, with a receiving hole at the upper part and a vent hole at the lower part. A limiting surface is provided between the receiving hole and the vent hole. A connecting claw is provided on the top of the female gas circuit connector head.
[0006] As a further improvement of this utility model, the connector retaining ring is a split structure, consisting of several connector retaining segments.
[0007] As a further improvement of this utility model, the top of the connector fixing lobe is a limiting top, and the bottom of the limiting top is a limiting groove.
[0008] As a further improvement of this utility model, the limiting groove is located inside the connector fixing lobe.
[0009] As a further improvement of this utility model, the connecting claw is located in the limiting groove.
[0010] As a further improvement of this utility model, a clamp is fitted around the outer periphery of the connector fixing ring.
[0011] As a further improvement of this utility model, the limiting boss is located in the receiving hole, between the limiting top and the limiting surface.
[0012] As a further improvement of this utility model, the sealing element consists of a first sealing ring, a second sealing ring, and a third sealing ring. The limiting boss is provided with a first mounting groove and a second mounting groove, and the first sealing ring and the second sealing ring are located in the first mounting groove and the second mounting groove, respectively. The outer periphery of the pneumatic connector female head is provided with a third mounting groove, and the third sealing ring is located in the third mounting groove.
[0013] As a further improvement of this utility model, the female part of the air connector is fixed to the female mounting base by threaded installation. The lower part of the female part of the air connector is provided with external thread, and the female mounting base is provided with matching internal thread.
[0014] As a further improvement of this utility model, the first sealing ring, the second sealing ring, and the third sealing ring are O-ring rubber sealing rings.
[0015] The positive and progressive effects of this utility model are as follows: 1. This utility model is simple to install and easy to operate. While ensuring the airtightness of the gas circuit connection between different components of the fuel cell, it can quickly switch between various sizes of end cap interfaces.
[0016] 2. The connector male head fixing ring of this utility model adopts a clamping fixing method, which is quick and convenient to disassemble, and can realize the purpose of quickly switching the connector male head according to the needs. Attached Figure Description
[0017] Figure 1 This is an exploded view of the present invention.
[0018] Figure 2 This is a structural schematic diagram of the male connector 1 of the present invention, which is a large-diameter male connector 1.1.
[0019] Figure 3 This is a structural schematic diagram of the male connector 1 of the pneumatic connector of this utility model, which is a small-diameter pneumatic connector male connector 1.2.
[0020] Figure 4 This is a schematic diagram of the structure of the male connector 1 of the air circuit connector of this utility model, which is an air circuit plug 1.3. Detailed Implementation
[0021] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this utility model described herein. Furthermore, terms such as "comprising" and "having" mean that in addition to those already listed in "comprising" and "having," other unlisted contents may also be included; for example, a process, method, system, product, or device may include a series of steps or units, not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.
[0024] Due to the angle of the drawing, some parts may not be drawn, but their positions and connections can be understood from the text descriptions.
[0025] like Figure 1 As shown, this utility model is a gas circuit connector structure for hydrogen fuel cell testing, including a gas circuit connector female head 4. The upper part of the gas circuit connector female head 4 is connected to the gas circuit connector male head 1 through a connector fixing ring and a clamp 3. The lower part of the gas circuit connector female head 4 is connected to the gas circuit connector female head mounting seat 5. A sealing element is provided between the gas circuit connector female head 4, the gas circuit connector male head 1, and the gas circuit connector female head mounting seat 5.
[0026] The lower outer periphery of the male connector 1 of the air circuit connector is provided with a limiting boss 1.4.
[0027] The female connector 4 has a second air hole, which is stepped. The upper part of the second air hole is a receiving hole, and the lower part of the second air hole is a vent hole 4.2. The limiting surface 4.1 is between the receiving hole and the vent hole 4.2. The top of the female connector 4 has a connecting claw 4.3.
[0028] The connector retaining ring is a split structure, consisting of several connector retaining segments 2.1. In this embodiment, the connector retaining ring consists of two connector retaining segments 2.1. The top of the connector retaining segment 2.1 is a limiting top 2.11, and below the limiting top 2.11 is a limiting groove 2.12, which is located inside the connector retaining segment 2.1.
[0029] Connecting claw 4.3 is located in limiting groove 2.12. Clamp 3 is sleeved on the outer periphery of connector retaining ring, and pneumatic connector female head 4 is connected to connector retaining ring. Limiting boss 1.4 is located in receiving hole, between limiting top 2.11 and limiting surface 4.1; pneumatic connector female head 4, connector retaining ring, clamp 3, and pneumatic connector male head 1 are connected together. Limiting surface 4.1 is a bevel, which has the advantages of easy processing and favorable gas flow.
[0030] The sealing components are a first sealing ring 6.1, a second sealing ring 6.2, and a third sealing ring 6.3. The limiting boss 1.4 is provided with a first mounting groove and a second mounting groove, and the first sealing ring 6.1 and the second sealing ring 6.2 are located in the first mounting groove and the second mounting groove, respectively. The outer periphery of the gas connector female head 4 is provided with a third mounting groove, and the third sealing ring 6.3 is located in the third mounting groove.
[0031] The female connector 4 is fixed to the female connector mounting base 5 by threaded installation. The lower part of the female connector 4 is provided with external thread, and the female connector mounting base 5 is provided with matching internal thread.
[0032] The first sealing ring 6.1, the second sealing ring 6.2, and the third sealing ring 6.3 are O-ring rubber seals.
[0033] like Figures 2-3 As shown, the male gas connector 1 is either a large-diameter male gas connector 1.1, a small-diameter male gas connector 1.2, or a gas plug 1.3.
[0034] The male connector 1.1 of the large-diameter air passage connector or the male connector 1.2 of the small-diameter air passage connector is provided with a first air hole, which is connected to a second air hole.
[0035] The working principle of this utility model is as follows: The hydrogen gas seal between the female gas connector 4 and the female mounting base 5 is ensured by a third sealing ring 6.3. The inlet chamfer on the female gas connector 4 ensures smooth installation of the male gas connector 1. The hydrogen gas seal between the male gas connector 1 and the female gas connector 4 is achieved by a first sealing ring 6.1 and a second sealing ring 6.2. The clamp 3 enables quick disassembly and installation of the connector fixing ring. This method allows the male gas connector 1 to be quickly switched according to requirements.
[0036] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.
Claims
1. A gas circuit connector structure for hydrogen fuel cell testing, characterized in that, The device includes a female air connector (4), the upper part of which is connected to a male air connector (1) via a connector retaining ring and a clamp (3), the lower part of which is connected to an air connector female mounting base (5), and a sealing element between the female air connector (4), the male air connector (1), and the air connector female mounting base (5); a limiting boss (1.4) is provided on the lower part of the outer periphery of the male air connector (1), a second air hole is provided in the female air connector (4), the second air hole is stepped, the upper part of the second air hole is a receiving hole, the lower part of the second air hole is a vent hole (4.2), and a limiting surface (4.1) is between the receiving hole and the vent hole (4.2); a connecting claw (4.3) is provided on the top of the female air connector (4).
2. The gas circuit connector structure for hydrogen fuel cell testing as described in claim 1, characterized in that, The connector retaining ring is a split structure, consisting of several connector retaining segments (2.1).
3. The gas circuit connector structure for hydrogen fuel cell testing as described in claim 2, characterized in that, The top of the connector fixing lobe (2.1) is a limiting top (2.11), and the bottom of the limiting top (2.11) is a limiting groove (2.12).
4. The gas circuit connector structure for hydrogen fuel cell testing as described in claim 3, characterized in that, The limiting groove (2.12) is located inside the connector fixing lobe (2.1).
5. The gas circuit connector structure for hydrogen fuel cell testing as described in claim 3, characterized in that, The connecting claw (4.3) is located in the limiting groove (2.12).
6. The gas circuit connector structure for hydrogen fuel cell testing as described in claim 1, characterized in that, A clamp is fitted around the outer circumference of the connector fixing ring (3).
7. The gas circuit connector structure for hydrogen fuel cell testing as described in claim 2, characterized in that, The limiting boss (1.4) is located in the receiving hole, between the limiting top (2.11) and the limiting surface (4.1).
8. The gas circuit connector structure for hydrogen fuel cell testing as described in claim 1, characterized in that, The sealing components are a first sealing ring (6.1), a second sealing ring (6.2), and a third sealing ring (6.3). The limiting boss (1.4) is provided with a first mounting groove and a second mounting groove. The first sealing ring (6.1) and the second sealing ring (6.2) are located in the first mounting groove and the second mounting groove, respectively. The outer periphery of the female part of the air circuit connector (4) is provided with a third mounting groove. The third sealing ring (6.3) is located in the third mounting groove.
9. The gas circuit connector structure for hydrogen fuel cell testing as described in claim 1, characterized in that, The female connector (4) is fixed to the female connector mounting base (5) by thread. The lower part of the female connector (4) is provided with external thread, and the female connector mounting base (5) is provided with matching internal thread.
10. The gas circuit connector structure for hydrogen fuel cell testing as described in claim 8, characterized in that, The first sealing ring (6.1), the second sealing ring (6.2), and the third sealing ring (6.3) are O-ring rubber seals.