Filtering device for fuel cell and fuel cell
By setting limit grooves and external projections on the inner wall of the manifold inlet of the fuel cell, the fixing and rapid replacement of the small filter is achieved, and the independent particulate filter affects the integration and serviceability of the fuel cell. The problem has improved the performance and life of fuel cells.
Patent Information
- Application Number
- CN202422910663.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-11-28
AI Technical Summary
The independent particulate filters in existing fuel cells are larger in size, which affects integration and compactness, and the vehicle is less serviceable when replacing the filter element.
A filter device including a circular tube and a filter mesh is designed. By setting limit grooves on the inner wall of the manifold inlet and setting protrusions on the outside of the filter mesh, the filter mesh is fixed by rotating and achieving rapid replacement, ensuring that the filter function does not affect the fuel. Integration and compactness of batteries.
It realizes effective filtering of impurity particles through a small filter, improves the performance and life of fuel cells, and simplifies the filter replacement process and improves the serviceability of the entire vehicle.
Smart Images
Figure CN222286742U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of fuel cells, and in particular, to a filtering device for fuel cells and a fuel cell. Background Art
[0002] In the relevant applications of fuel cells, if the external particulate matter impurities enter the stack through the manifold inlet, it may cause the flow channel inside the stack to be blocked, which will affect the performance and life of the stack. In this regard, in the relevant technology, in order to achieve the filtering function, the fuel cell is usually equipped with an independent particle filter.
[0003] Although the particulate filter can effectively prevent external particulate impurities from entering the fuel cell stack through the manifold inlet, on the one hand, independent particulate filters are usually large in size, which is not conducive to the integration and compactness of fuel cells; on the other hand, the particulate filter is often arranged at the bottom of the fuel cell stack, and the particulate filter must be removed before replacing the filter element of the particulate filter, which makes the serviceability of the entire vehicle poor. Utility Model Content
[0004] The present application at least provides a filtering device and a fuel cell for a fuel cell. Through this device, foreign particles entering the fuel cell through the manifold inlet can be effectively filtered through a smaller filter, thereby improving the performance and life of the fuel cell. In addition, the filter installed inside the manifold inlet will not affect the integration and compactness of the fuel cell. At the same time, the filter is easy to assemble by means of the limiting grooves and protrusions, and the filter can be quickly replaced by simply rotating the filter, thereby improving the serviceability of the entire vehicle.
[0005] In a first aspect, an embodiment of the present application provides a filtering device for a fuel cell, the device comprising a manifold inlet and a filter screen:
[0006] The main body of the manifold inlet is a circular tube, the main body of the filter is circular, and the inner diameter of the circular tube matches the outer diameter of the filter;
[0007] A plurality of limiting grooves are arranged on the inner wall surface of the circular tube, and a plurality of protrusions are arranged on the outside of the filter screen, wherein the limiting grooves match the plurality of protrusions, and after the filter screen is screwed into the inside of the circular tube, the plurality of limiting grooves cooperate with the plurality of protrusions to fix the filter screen inside the manifold inlet;
[0008] The limiting groove is an L-shaped groove, and the L-shaped groove includes a vertical arm and a bending arm connected to each other, the vertical arm is arranged along the axial direction of the circular tube, and the bending arm is arranged along the circumferential direction of the circular tube;
[0009] The radial width of the protrusion on the filter screen matches the depth of the L-shaped groove, the circumferential length of the protrusion on the filter screen matches the circumferential length of the vertical arm on the circular tube, and the axial thickness of the protrusion on the filter screen matches the axial length of the bending arm on the circular tube.
[0010] In a possible implementation, the depth of the L-shaped groove ranges from 2 mm to 3 mm.
[0011] In a possible implementation, the length of the vertical arm in the circumferential direction of the circular tube ranges from 8 mm to 12 mm.
[0012] In a possible implementation, the axial length of the bending arm on the circular tube ranges from 8 mm to 12 mm.
[0013] In a possible implementation, the manifold inlet includes a manifold hydrogen inlet and a manifold coolant inlet, and the filter includes a first filter matched with the manifold hydrogen inlet and a second filter matched with the manifold coolant inlet.
[0014] In a possible implementation, the second filter screen is made of non-metallic material.
[0015] In a possible implementation, the pore size of the filter is no greater than 150 microns.
[0016] In a possible implementation, three limiting grooves are provided on the inside of the circular tube, and three protrusions are provided on the outside of the filter screen.
[0017] In a second aspect, an embodiment of the present application provides a fuel cell, including a fuel cell stack and the filtering device for the fuel cell described in the above embodiment.
[0018] In summary, the present application provides a filtering device and a fuel cell for a fuel cell, the device comprising a manifold inlet and a filter screen: the main body of the manifold inlet is a circular tube, the main body of the filter screen is circular, the inner diameter of the circular tube matches the outer diameter of the filter screen, so that the filter screen can be screwed into the interior of the manifold inlet; a plurality of limiting grooves are arranged on the inner wall surface of the circular tube, and a plurality of protrusions are arranged on the outside of the filter screen, the plurality of limiting grooves match the plurality of protrusions, and after the filter screen is screwed into the interior of the circular tube, the plurality of limiting grooves cooperate with the plurality of protrusions to fix the filter screen inside the manifold inlet; the limiting groove is an L-shaped groove, the L-shaped groove comprises a connected vertical arm and a bent arm, the vertical arm is arranged along the axial direction of the circular tube, and the bent arm is arranged along the circumferential direction of the circular tube; the width of the protrusion in the radial direction of the filter screen matches the depth of the L-shaped groove, the length of the protrusion in the circumferential direction of the filter screen matches the length of the vertical arm in the circumferential direction of the circular tube, and the thickness of the protrusion in the axial direction of the filter screen matches the length of the bent arm in the axial direction of the circular tube. Through the above device, foreign particles entering the fuel cell through the manifold inlet can be effectively filtered through a smaller filter, thereby improving the performance and life of the fuel cell, and the filter installed inside the manifold inlet will not affect the integration and compactness of the fuel cell. At the same time, the filter fixed by the limiting groove and the protrusion is easy to assemble. When the limiting groove is an L-shaped groove, after the filter is screwed into the inside of the circular tube, the protrusion can first cooperate with the vertical arm, and then the filter can be rotated to make the protrusion match the bent arm so that the filter is limited and stuck inside the manifold inlet, thereby achieving the stuck fixation of the filter. The filter can be quickly replaced by simply rotating the filter, thereby improving the serviceability of the entire vehicle.
[0019] Other advantages of the present application will be explained in more detail in conjunction with the following description and drawings.
[0020] It should be understood that the above description is only an overview of the technical solution of the present application, so that the technical means of the present application can be generally understood and then implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are specifically described below by way of example. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. The drawings herein are incorporated into the specification and constitute a part of the specification. These drawings illustrate embodiments that conform to the present application and are used together with the specification to illustrate the technical solutions of the present application. It should be understood that the drawings only illustrate certain embodiments of the present application and should not be regarded as limiting the scope of protection. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. Moreover, the same reference numerals are used to represent the same components throughout the drawings. In the drawings:
[0022] Figure 1 A schematic diagram of the structural decomposition of a filter device for a fuel cell provided in an embodiment of the present application;
[0023] Figure 2 A schematic diagram of the structure of a manifold hydrogen inlet and a manifold coolant inlet of a fuel cell provided in an embodiment of the present application;
[0024] Figure 3 A schematic diagram of the structure of a manifold hydrogen inlet and a first filter screen of a fuel cell provided in an embodiment of the present application;
[0025] Figure 4 A schematic diagram of the structure of a manifold coolant inlet and a second filter screen of a fuel cell provided in an embodiment of the present application;
[0026] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.
[0027] Among them, 1-manifold inlet; 1A-manifold hydrogen inlet; 1B-manifold coolant inlet; 11-limiting groove; 111-vertical arm; 112-bending arm; 2-filter; 2A-first filter; 2B-second filter; 21-protrusion; 3-fuel cell stack. DETAILED DESCRIPTION
[0028] The exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.
[0029] In the description of the embodiments of the present application, it should be understood that terms such as "including" or "having" are intended to indicate the presence of the disclosed features, numbers, components, parts or a combination thereof in the present specification, and do not exclude the possibility of the presence of one or more other features, numbers, components, parts or a combination thereof.
[0030] Unless otherwise specified, “ / ” means or. For example, A / B can mean A or B. The “and / or” in this article is merely a way to describe the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.
[0031] The terms "first", "second", etc. are used only to distinguish the same or similar technical features for the convenience of description, and should not be understood as indicating or implying the relative importance or quantity of these technical features. Thus, the features defined by "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present application, unless otherwise specified, the term "plurality" means two or more than two.
[0032] In the relevant applications of fuel cells, if the external particulate matter impurities enter the stack through the manifold inlet, it may cause the flow channel inside the stack to be blocked, which will affect the performance and life of the stack. In this regard, in the relevant technology, in order to achieve the filtering function, the fuel cell is usually equipped with an independent particle filter.
[0033] Although the particulate filter can effectively prevent external particulate impurities from entering the fuel cell stack through the manifold inlet, on the one hand, independent particulate filters are usually large in size, which is not conducive to the integration and compactness of fuel cells; on the other hand, the particulate filter is often arranged at the bottom of the fuel cell stack, and the particulate filter must be removed before replacing the filter element of the particulate filter, which makes the serviceability of the entire vehicle poor.
[0034] In view of this, the present application provides a filtering device for a fuel cell and a fuel cell, through which the foreign particles entering the fuel cell through the manifold inlet can be effectively filtered through a smaller filter, thereby improving the performance and life of the fuel cell, and the filter installed inside the manifold inlet will not affect the integration and compactness of the fuel cell. At the same time, the filter is easy to assemble by means of the limiting grooves and protrusions, and the filter can be quickly replaced by simply rotating the filter, thereby improving the serviceability of the entire vehicle.
[0035] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.
[0036] like Figure 1 As shown, an embodiment of the present application provides a filtering device for a fuel cell, the device comprising a manifold inlet 1 and a filter screen 2:
[0037] The main body of the manifold inlet 1 is a circular tube, the main body of the filter screen 2 is circular, and the inner diameter of the circular tube matches the outer diameter of the filter screen 2 .
[0038] Specifically, the main body of the manifold inlet 1 is a circular tube, and correspondingly, the main body of the filter screen 2 is also circular, and the inner diameter of the circular tube matches the outer diameter of the filter screen 2 so that the filter screen 2 can be manually screwed into the interior of the manifold inlet 1.
[0039] A plurality of limiting grooves 11 are arranged on the inner wall surface of the circular tube, and a plurality of protrusions 21 are arranged on the outside of the filter screen 2. The plurality of limiting grooves 11 match the plurality of protrusions 21. After the filter screen 2 is screwed into the interior of the circular tube, the plurality of limiting grooves 11 cooperate with the plurality of protrusions 21 to fix the filter screen 2 inside the manifold inlet 1.
[0040] Specifically, in order to realize the assembly of the filter 2 and the manifold inlet 1, a plurality of limiting grooves 11 can be provided on the inner wall surface of the circular tube, and correspondingly, a plurality of protrusions can be provided on the outside of the filter 2, and the plurality of limiting grooves match the plurality of protrusions one by one. After the filter 2 is screwed into the interior of the circular tube 1, the plurality of limiting grooves 11 can cooperate with the plurality of protrusions 21 to fix the filter 2 inside the manifold inlet 1, that is, the filter 2 can be fixed inside the manifold inlet 1 through the structure of the limiting groove-protrusion cooperation, and the impurity particles entering the fuel cell through the manifold inlet can be effectively filtered through the smaller filter, thereby improving the performance and life of the fuel cell, and the filter installed inside the manifold inlet will not affect the integration and compactness of the fuel cell.
[0041] At the same time, compared with the difficult assembly and disassembly methods such as horizontal spiral meshing, the filter fixed by the limiting grooves and protrusions is easy to assemble, and the filter can be quickly replaced by simply rotating the filter, which improves the serviceability of the entire vehicle.
[0042] The limiting groove 11 may be an L-shaped groove, and the L-shaped groove may include a vertical arm 111 and a bending arm 112 connected to each other, the vertical arm 111 is arranged along the axial direction of the circular tube, and the bending arm 112 is arranged along the circumferential direction of the circular tube;
[0043] The radial width of the protrusion 21 on the filter screen 2 can match the depth of the L-shaped groove, the circumferential length of the protrusion 21 on the filter screen 2 can match the circumferential length of the vertical arm 111 on the circular tube, and the axial thickness of the protrusion 21 on the filter screen 2 can match the axial length of the bending arm 112 on the circular tube.
[0044] During assembly, since the radial width of the protrusion 21 in the filter screen 2 matches the depth of the L-shaped groove and the circumferential length of the protrusion 21 in the filter screen 2 matches the circumferential length of the vertical arm 111 on the circular tube, the protrusion 21 can first cooperate with the vertical arm 111. At the same time, since the radial width of the protrusion 21 in the filter screen 2 matches the depth of the L-shaped groove and the axial thickness of the protrusion 21 in the filter screen 2 matches the axial length of the bending arm 112 on the circular tube, after the protrusion 21 cooperates with the vertical arm 111, the filter screen 2 can be rotated to make the protrusion 21 match the bending arm 112, so that the filter screen 2 can be limited and stuck inside the manifold inlet 1.
[0045] In actual applications, the radial width of the protrusion 21 on the filter screen 2 matches the depth of the L-shaped groove, and the radial width of the protrusion 21 on the filter screen 2 can be 1 mm smaller than the depth of the L-shaped groove. The circumferential length of the protrusion 21 on the filter screen 2 matches the circumferential length of the vertical arm 111 on the circular tube, and the circumferential length of the protrusion 21 on the filter screen 2 can be 1 mm smaller than the circumferential length of the vertical arm 111 on the circular tube. The axial thickness of the protrusion 21 on the filter screen 2 matches the axial length of the bending arm 112 on the circular tube, and the axial thickness of the protrusion 21 on the filter screen 2 can be matched with the axial length of the bending arm 112 on the circular tube, and the axial thickness of the protrusion 21 on the filter screen 2 can be 1 mm smaller than the axial length of the bending arm 112 on the circular tube.
[0046] In a possible implementation, the depth of the L-shaped groove may range from 2 mm to 3 mm.
[0047] In a possible implementation, the length of the vertical arm 111 in the circumferential direction of the circular tube may range from 8 mm to 12 mm.
[0048] In a possible implementation, the axial length of the bending arm 112 on the circular tube may range from 8 mm to 12 mm.
[0049] In one possible implementation, Figure 2 , Figure 3 , Figure 4 As shown, the manifold inlet 1 may include a manifold hydrogen inlet 1A and a manifold coolant inlet 1B, and the filter 2 may include a first filter 2A matched with the manifold hydrogen inlet 1A and a second filter 2B matched with the manifold coolant inlet 1B.
[0050] It should be noted that, with respect to the air manifold inlet, since the flow rate at the air manifold inlet is relatively large and the flow resistance is also relatively large, in order to ensure the reliability of the fuel cell, a corresponding filter is not configured in this embodiment.
[0051] In a possible implementation, the second filter screen 2B is made of non-metallic material.
[0052] Specifically, the second filter 2B is a filter that matches the manifold coolant inlet 1B. Since the coolant is charged, in order to prevent the second filter 2B from being corroded by the coolant and causing pollution to the fuel cell, the second filter 2B can be made of non-metallic material.
[0053] It should be noted that for the manifold coolant inlet 1B, if threaded fixing or bolt fixing is adopted, the threads and bolts are usually made of metal materials, and the metal will be corroded by the coolant, thereby causing pollution to the fuel cell. The fixing method of the limiting groove-protrusion matching in this embodiment can avoid this problem.
[0054] In a possible implementation, in order to effectively filter foreign particles, the pore size of the filter 2 is not greater than 150 microns. In practical applications, taking the cost into consideration, the pore size of the filter 2 may be 150 microns.
[0055] In a possible implementation, in order to achieve reliable fixation of the filter screen 2 at the manifold inlet 1, as Figure 1 As shown, three limiting grooves 11 may be provided on the inside of the circular tube, and three protrusions 21 may be provided on the outside of the filter screen 2 .
[0056] It should be noted that, in practical applications, the number of the limiting grooves 11 and the protrusions 21 can be set as required and is not limited here.
[0057] The present application also provides a fuel cell, such as Figure 2 As shown, the fuel cell includes a fuel cell stack 3 and the filtering device for the fuel cell of the aforementioned embodiment.
[0058] In the description of this specification, the description with reference to the terms "some possible embodiments", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application, and the above terms do not necessarily represent the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.
[0059] Although the spirit and principle of the present application have been described above with reference to several specific embodiments, it should be understood that the present application is not limited to the disclosed specific embodiments, and the division of various aspects does not mean that the features in these aspects cannot be combined. The present application is intended to cover various modifications and equivalent arrangements included in the spirit and scope of the attached claims.
Claims
1. A filter device for a fuel cell, characterized in that: Includes manifold inlet (1) and strainer (2): The main body of the manifold inlet (1) is a circular tube, the main body of the filter screen (2) is circular, and the inner diameter of the circular tube matches the outer diameter of the filter screen (2); A plurality of limiting grooves (11) are arranged on the inner wall surface of the circular tube, and a plurality of protrusions (21) are arranged on the outside of the filter screen (2), the plurality of limiting grooves (11) match the plurality of protrusions (21), and after the filter screen (2) is screwed into the interior of the circular tube, the plurality of limiting grooves (11) and the plurality of protrusions (21) cooperate to fix the filter screen (2) inside the manifold inlet (1); The limiting groove (11) is an L-shaped groove, the L-shaped groove comprising a vertical arm (111) and a bending arm (112) connected to each other, the vertical arm (111) being arranged along the axial direction of the circular tube, and the bending arm (112) being arranged along the circumferential direction of the circular tube; The width of the protrusion (21) in the radial direction of the filter screen (2) matches the depth of the L-shaped groove, the length of the protrusion (21) in the circumferential direction of the filter screen (2) matches the circumferential length of the vertical arm (111) on the circular tube, and the thickness of the protrusion (21) in the axial direction of the filter screen (2) matches the axial length of the bent arm (112) on the circular tube.
2. The filter device for a fuel cell according to claim 1, characterized in that: The depth of the L-shaped groove ranges from 2 mm to 3 mm.
3. The filter device for a fuel cell according to claim 1, characterized in that: The length of the vertical arm (111) in the circumferential direction of the circular tube ranges from 8 mm to 12 mm.
4. The filter device for a fuel cell according to claim 1, characterized in that: The axial length of the bending arm (112) on the circular tube ranges from 8 mm to 12 mm.
5. The filter device for a fuel cell according to claim 1, characterized in that: The manifold inlet (1) comprises a manifold hydrogen inlet (1A) and a manifold coolant inlet (1B), and the filter (2) comprises a first filter (2A) matched with the manifold hydrogen inlet (1A) and a second filter (2B) matched with the manifold coolant inlet (1B).
6. The filter device for a fuel cell according to claim 5, characterized in that: The second filter screen (2B) is made of non-metallic material.
7. The filter device for a fuel cell according to claim 1, characterized in that: The pore size of the filter (2) is no greater than 150 micrometers.
8. The filter device for a fuel cell according to claim 1, characterized in that: Three limiting grooves (11) are arranged on the inside of the circular tube, and three protrusions (21) are arranged on the outside of the filter screen (2).
9. A fuel cell, comprising a fuel cell stack (3) and a filtering device for a fuel cell according to any one of claims 1 to 8.