Hydrogen concentration sensor mounting structure, box body and fuel cell engine

Abstract

The utility model relates to the technical field of fuel cell engines, and discloses a hydrogen concentration sensor mounting structure, a box body and a fuel cell engine, the hydrogen concentration sensor mounting structure comprises a first plate, a second plate and a hydrogen concentration sensor, the first plate comprises a plate body and a mounting seat connected to one end of the plate body, and the plate body and the mounting seat are integrally formed; a flowing space is defined between the first plate and the second plate, the flowing space forms a first outlet and a second outlet at the mounting seat, and the hydrogen concentration sensor is mounted on the mounting seat and connected to the first outlet. The hydrogen concentration sensor has the beneficial effects that the installation integration degree of the hydrogen concentration sensor is improved on the premise of not influencing hydrogen flow and detection, an additional sensor installation joint does not need to be added, the structure is simplified, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cell engines, in particular to a hydrogen concentration sensor installation structure, a box body and a fuel cell engine. Background Art

[0002] In the field of fuel cell engines, hydrogen concentration sensors are important components, which are usually arranged on the pipeline of the engine to detect hydrogen concentration. In order to install the hydrogen concentration sensor, an independent mounting base needs to be set on the pipeline, which will lead to the following problems: 1. It is necessary to add an additional sensor mounting structure; 2. Increased cost; 3. Installing the hydrogen concentration sensor on the pipeline is prone to inaccurate detection. Therefore, a new type of hydrogen concentration sensor mounting structure, box and fuel cell engine is urgently needed to solve the above problems. Utility Model Content

[0003] The purpose of this application is to provide a hydrogen concentration sensor mounting structure, a housing and a fuel cell engine to improve the integration of the fuel cell engine.

[0004] The purpose of this application is achieved through the following technical solutions:

[0005] A hydrogen concentration sensor mounting structure comprises: a first plate, a second plate and a hydrogen concentration sensor, wherein the first plate comprises a plate body and a mounting seat connected to one end of the plate body, the plate body and the mounting seat are integrally formed, a flow space for hydrogen to pass through is defined between the first plate and the second plate, the flow space forms a first outlet and a second outlet at the mounting seat, the hydrogen concentration sensor is mounted on the mounting seat and connected to the first outlet, and the second outlet is used for hydrogen in the flow space to flow out.

[0006] In some embodiments of the present application, the first plate and the second plate are arranged sequentially from top to bottom.

[0007] In some embodiments of the present application, the first outlet is opened toward the top of the mounting seat.

[0008] In some embodiments of the present application, the second outlet is opened toward a side of the mounting base.

[0009] In some embodiments of the present application, an outlet pipeline is externally connected to the second outlet.

[0010] In some embodiments of the present application, the second plate is provided with a blowing hole connected to the flow space.

[0011] A box body comprises: the hydrogen concentration sensor installation structure as described above, a box body and a third plate, wherein the first plate, the second plate and the hydrogen concentration sensor are all arranged on the front side of the box body, the third plate covers the bottom of the box body and partially extends out of the front side of the box body, and the second plate is installed on the third plate.

[0012] In some embodiments of the present application, the second plate and the third plate are friction welded integrally formed parts.

[0013] A fuel cell engine, characterized in that it comprises: a box body as described above and an engine body, wherein the box body is installed on the top of the engine body.

[0014] The hydrogen concentration sensor mounting structure, housing and fuel cell engine of the present application provide hydrogen movement through the flow space formed by the first plate and the second plate, so that the hydrogen reaches a suitable position, and the mounting seat of the hydrogen concentration sensor is integrated on the first plate, and the hydrogen concentration sensor is mounted on the mounting seat, without the need to add an additional sensor mounting connector, thereby effectively improving the installation integration, and a first outlet for connecting the hydrogen concentration sensor and a second outlet for supplying hydrogen to other positions are provided at the mounting seat. The hydrogen gradually stabilizes after passing through the flow space, and the hydrogen concentration sensor is arranged at the first outlet position to ensure the accuracy of the detection result, and the remaining hydrogen can flow out through the second outlet to complete the convergence, thereby ensuring the normal operation of the fuel cell engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the fuel cell engine of the present application;

[0016] Figure 2 It is a three-dimensional diagram of the box of the present application;

[0017] Figure 3 yes Figure 2 Enlarged view of part A in the middle;

[0018] Figure 4 It is a three-dimensional diagram of the box of the present application from another perspective;

[0019] Figure 5 is an exploded schematic diagram of the second plate and the third plate of the present application;

[0020] Figure 6 is a cross-sectional view of the box scavenging structure of the present application;

[0021] Figure 7 yes Figure 6 Enlarged view of part B in the middle.

[0022] In the figure, 100, box body; 200, engine body;

[0023] 1. First plate; 11. Plate body; 12. Mounting seat; 2. Second plate; 21. Air blowing hole; 3. Hydrogen concentration sensor; 4. Flow space; 41. First outlet; 42. Second outlet; 5. Outlet pipeline; 6. Box body; 7. Third plate. DETAILED DESCRIPTION

[0024] 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.

[0025] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom" and the like used in the present application to indicate orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] like Figure 1-7 As shown, the first aspect of an embodiment of the present application proposes a hydrogen concentration sensor installation structure, comprising: a first plate 1, a second plate 2 and a hydrogen concentration sensor 3, the first plate 1 comprising a plate body 11 and a mounting seat 12 connected to one end of the plate body 11, the plate body 11 and the mounting seat 12 are integrally formed, a flow space 4 for hydrogen to pass through is defined between the first plate 1 and the second plate 2, the flow space 4 forms a first outlet 41 and a second outlet 42 at the mounting seat 12, the hydrogen concentration sensor 3 is installed on the mounting seat 12 and connected to the first outlet 41, and the second outlet 42 is used for the hydrogen in the flow space 4 to flow out.

[0028] Based on the above technical solution, the hydrogen concentration sensor installation structure of the present application provides hydrogen movement through the flow space 4 formed by the first plate 1 and the second plate 2, so that the hydrogen reaches a suitable position, and the first plate 1 is integrated with a mounting base 12 of the hydrogen concentration sensor 3, and the hydrogen concentration sensor 3 is installed on the mounting base 12, without adding an additional sensor mounting connector, which effectively improves the installation integration, and a first outlet 41 for connecting the hydrogen concentration sensor 3 and a second outlet 42 for supplying hydrogen to other positions are provided at the position of the mounting base 12, and the hydrogen gradually stabilizes after passing through the flow space 4, and the hydrogen concentration sensor 3 is arranged at the position of the first outlet 41 to ensure the accuracy of the detection result, and the remaining hydrogen can flow out through the second outlet 42 to ensure the normal operation of the fuel cell engine.

[0029] In some embodiments of the present application, Figure 6 , 7 As shown, the first plate 1 and the second plate 2 are arranged in sequence from top to bottom. The first plate 1 and the second plate 2 are arranged in an upper and lower spacing manner, so that a flow space 4 is formed between the first plate 1 and the second plate 2, and hydrogen can pass through the middle. This structure is adapted to the overall structure of the fuel cell engine and can achieve better hydrogen transportation efficiency.

[0030] Specifically, Figure 1-3 and Figure 6 , 7 As shown, the first outlet 41 is opened toward the upper side of the mounting seat 12. The first outlet 41 is where the hydrogen concentration sensor 3 is installed. Since hydrogen is light in weight and is more likely to float, the hydrogen concentration sensor 3 is arranged at the upper part to more accurately detect the hydrogen concentration.

[0031] More specifically, Figure 6 , 7 As shown, the second outlet 42 is opened toward the side of the mounting seat 12. Hydrogen can go to the outside of the fuel cell engine from the second outlet 42. The second outlet 42 is arranged toward the side to better discharge hydrogen and avoid the problem of poor hydrogen discharge.

[0032] More specifically, Figure 1-7 As shown, the second outlet 42 is externally connected to an outlet pipeline 5. The outlet pipeline 5 preferably adopts a structure of a pipeline matching a flange surface, the pipeline is connected to the middle position of the flange surface and extends outward, and the flange surface is installed on the side of the mounting seat 12 by fasteners to achieve hydrogen discharge.

[0033] In some embodiments of the present application, Figure 4-6As shown, the second plate 2 is provided with a blowing hole 21 connected to the flow space 4. The blowing hole 21 on the second plate 2 allows hydrogen to be blown into the flow space 4 from below, flow along the flow space 4 to the first outlet 41 to complete the detection of hydrogen concentration and be discharged from the second outlet 42, thereby forming a hydrogen flow path in cooperation with the rest of the structures in the overall engine.

[0034] like Figure 1-7 As shown, a box 100 includes: the hydrogen concentration sensor mounting structure as described above, as well as a box body 6 and a third plate 7, wherein the first plate 1, the second plate 2 and the hydrogen concentration sensor 3 are all arranged on the front side of the box body 6, the third plate 7 covers the bottom of the box body 6 and partially extends out of the front side of the box body 6, and the second plate 2 is mounted on the third plate 7. The box body 6 and the third plate 7 form the main structure of the box 100, and the hydrogen concentration sensor mounting structure is located on the front side of the box body 6. The connection between the mounting structure and the box 100 is realized by assembling the second plate 2 and the third plate 7, and the mounting seat 12 of the hydrogen concentration sensor 3 is integrated on the box 100, which saves costs while improving the integration of the overall structure.

[0035] In some embodiments of the present application, Figure 4 As shown, the second plate 2 and the third plate 7 are integrally formed by friction welding. The second plate 2 and the third plate 7 are integrally formed by friction welding, which further improves the integration of the overall structure.

[0036] like Figure 1 As shown, a fuel cell engine comprises: the box body 100 and the engine body 200 as described above, wherein the box body 100 is installed on the top of the engine body 200. The hydrogen flow space 4 in the box body 100 is connected with the hydrogen flow path in the engine body 200 through the blowing hole 21, so that the flow of hydrogen in the fuel cell engine is completed, and the overall structure has high integration, simple structure, and cost saving.

[0037] In summary, the hydrogen concentration sensor mounting structure, the housing 100 and the fuel cell engine of the present application provide a flow space 4 for hydrogen movement formed by the first plate 1 and the second plate 2, so that the hydrogen reaches a suitable position, and the mounting base 12 of the hydrogen concentration sensor 3 is integrated on the first plate 1, and the hydrogen concentration sensor 3 is mounted on the mounting base 12, without the need to add an additional sensor mounting connector, thereby effectively improving the installation integration, and a first outlet 41 for connecting the hydrogen concentration sensor 3 and a second outlet 42 for supplying hydrogen to other positions are provided at the position of the mounting base 12, and the hydrogen gradually stabilizes after passing through the flow space 4, and the hydrogen concentration sensor 3 is arranged at the position of the first outlet 41 to ensure the accuracy of the detection result, and the remaining hydrogen can flow out through the second outlet 42 to complete the convergence, thereby ensuring the normal operation of the fuel cell engine.

[0038] The above is only a preferred implementation of the present application. 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 principles of the present application. These improvements and substitutions should also be regarded as the scope of protection of the present application.

Claims

1. A hydrogen concentration sensor installation structure, characterized in that: include: A first plate, a second plate and a hydrogen concentration sensor, wherein the first plate includes a plate body and a mounting seat connected to one end of the plate body, the plate body and the mounting seat are integrally formed, a flow space for hydrogen to pass through is defined between the first plate and the second plate, the flow space forms a first outlet and a second outlet at the mounting seat, the hydrogen concentration sensor is mounted on the mounting seat and connected to the first outlet, and the second outlet is used for hydrogen in the flow space to flow out.

2. The hydrogen concentration sensor mounting structure according to claim 1, characterized in that: The first plate and the second plate are arranged sequentially from top to bottom.

3. The hydrogen concentration sensor mounting structure according to claim 2, characterized in that: The first outlet is opened toward the upper side of the mounting seat.

4. The hydrogen concentration sensor mounting structure according to claim 3, characterized in that: The second outlet is opened toward a side surface of the mounting seat.

5. The hydrogen concentration sensor mounting structure according to claim 4, characterized in that: The second outlet is externally connected to an outlet pipeline.

6. The hydrogen concentration sensor installation structure according to any one of claims 1 to 5, characterized in that: The second plate is provided with a blowing hole communicated with the flow space.

7. A box, characterized in that: include: The hydrogen concentration sensor mounting structure as described in any one of claims 1 to 6, as well as a box body and a third plate, wherein the first plate, the second plate and the hydrogen concentration sensor are all arranged on the front side of the box body, the third plate covers the bottom of the box body and partially extends out of the front side of the box body, and the second plate is mounted on the third plate.

8. The box according to claim 7, characterized in that: The second plate and the third plate are integrally formed parts by friction welding.

9. A fuel cell engine, characterized in that: include: The housing and engine body according to claim 7 or 8, wherein the housing is mounted on the top of the engine body.

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