CN113206282A - Tightening device of fuel cell stack and fuel cell - Google Patents
Tightening device of fuel cell stack and fuel cell Download PDFInfo
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- CN113206282A CN113206282A CN202110427513.0A CN202110427513A CN113206282A CN 113206282 A CN113206282 A CN 113206282A CN 202110427513 A CN202110427513 A CN 202110427513A CN 113206282 A CN113206282 A CN 113206282A
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- 239000000446 fuel Substances 0.000 title claims abstract description 112
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000009434 installation Methods 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/248—Means for compression of the fuel cell stacks
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/2475—Enclosures, casings or containers of fuel cell stacks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
本发明公开一种燃料电池堆的束紧装置及燃料电池，燃料电池堆的束紧装置包括安装座和夹紧机构，安装座用于设置于燃料电池堆主体上，安装座形成有第一区域；夹紧机构包括绑带以及压制机构，绑带具有间隔设置的固定段和自由段，固定段固定于安装座的第一区域，自由段用于沿燃料电池堆的环周方向绕设后连接至第一区域，压制机构包括压制件，压制件在外力驱动下活动设置于自由段背对第一区域的一侧，以具有靠近第一区域的压制行程，以在压制行程中，压制件将自由段压制在第一区域上。本发明结构简单，可调节燃料电池堆的束紧装置对燃料电池堆的松紧程度，避免绑带发生塑性变形，使燃料电池堆出现松弛现象，提高燃料电池的使用寿命。
The invention discloses a tightening device for a fuel cell stack and a fuel cell. The tightening device for the fuel cell stack comprises a mounting seat and a clamping mechanism, the mounting seat is arranged on the main body of the fuel cell stack, and the mounting seat is formed with a first area ; The clamping mechanism includes a strap and a pressing mechanism, the strap has a fixed section and a free section arranged at intervals, the fixed section is fixed on the first area of the mounting seat, and the free section is used for connecting along the circumferential direction of the fuel cell stack. To the first region, the pressing mechanism includes a pressing piece, and the pressing piece is movably arranged on the side of the free segment that is away from the first region under the driving of an external force, so as to have a pressing stroke close to the first region, so that during the pressing stroke, the pressing piece will The free segment is pressed against the first area. The invention has a simple structure, can adjust the tightness of the fuel cell stack tightening device to the fuel cell stack, avoid plastic deformation of the strap, make the fuel cell stack loose, and improve the service life of the fuel cell.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a fuel cell stack tightening device and a fuel cell.
Background
The proton exchange membrane fuel cell is a power generation device which can directly convert chemical energy in gas into electric energy without combustion, and has the advantages of high energy density, simple structure and environmental protection, so the proton exchange membrane fuel cell has good development prospect. The output voltage and power of a single fuel cell are low, that is, according to the voltage or current requirement of a specific device, a plurality of single cells need to be stacked to form a fuel cell stack to supply power to the outside. A fuel cell stack generally includes: the end plates, collector plates, bipolar plates, and membrane electrodes are typically secured together using straps or other securing devices to form a pem fuel cell stack. However, the straps plastically deform during long-term use, resulting in loosening of the fuel cell stack.
Disclosure of Invention
The invention mainly aims to provide a fuel cell stack tightening device and a fuel cell, and aims to solve the problem that the fuel cell stack is loosened due to plastic deformation of a binding band in the long-term use process.
To achieve the above object, the present invention provides a fuel cell stack tightening device, including:
a mounting seat for being disposed on the fuel cell stack main body, the mounting seat being formed with a first region; and the number of the first and second groups,
the clamping mechanism comprises a binding belt and a pressing mechanism, the binding belt is provided with a fixed section and a free section which are arranged at intervals, the fixed section is fixed in the first area of the mounting seat, the free section is used for being connected to the first area after being wound in the circumferential direction of the fuel cell stack, the pressing mechanism comprises a pressing piece, the pressing piece is arranged on one side, back to the first area, of the free section under the driving of external force so as to have a pressing stroke close to the first area, and in the pressing stroke, the pressing piece presses the free section on the first area.
Optionally, the pressing piece comprises a roller shaft, the roller shaft is rotatably mounted on the mounting seat along the axis of the roller shaft, and a protrusion is arranged on the side wall of the roller shaft, so that in the pressing stroke, the protrusion abuts against the upper surface of the free section;
wherein, the bulge is gradually bulged from the side wall of the roll shaft in the rotating direction of the pressed piece.
Optionally, the outer surface of the protrusion is arranged in a circular arc.
Optionally, the pressing member is made of an elastic material at least at the protrusion.
Optionally, an anti-slip structure is provided at the abutment between the protrusion and the upper surface of the free section.
Optionally, the tightening device further comprises a slack adjuster, the slack adjuster comprising:
the tightness adjusting piece is movably arranged on the mounting seat along the direction far away from and close to the pressing piece, and can be in clutch connection with the free section, so that when the tightness adjusting piece is connected with the free section, the tightness adjusting piece can drive the free section to move; and the number of the first and second groups,
the driving device is installed on the installation seat and connected with the tightness adjusting piece so as to drive the tightness adjusting piece to be far away from and close to the pressing piece.
Optionally, the slack adjuster comprises:
the rack extends to one side of the pressed piece along the direction far away from and close to the pressed piece, one end of the rack faces the free section and is connected with the free section in a clutchable manner; and the number of the first and second groups,
and the gear is meshed with the rack and is driven to rotate by the driving device so as to drive the rack to be far away from or close to the pressed piece.
Optionally, the slack adjuster further comprises a protrusion that fits into a groove on the free section.
Optionally, the fixing section and the mounting seat are connected by bonding, snapping or screws.
The present invention also provides a fuel cell comprising:
a fuel cell stack main body; and the number of the first and second groups,
a fuel cell stack tie-down apparatus, the fuel cell stack tie-down apparatus comprising:
a mounting seat for being disposed on the fuel cell stack main body, the mounting seat being formed with a first region; and the number of the first and second groups,
the clamping mechanism comprises a binding belt and a pressing mechanism, the binding belt is provided with a fixed section and a free section which are arranged at intervals, the fixed section is fixed in the first area of the mounting seat, the free section is used for being connected to the first area after being wound in the circumferential direction of the fuel cell stack, the pressing mechanism comprises a pressing piece, the pressing piece is movably arranged on one side, opposite to the first area, of the free section under the driving of external force so as to have a pressing stroke close to the first area, and in the pressing stroke, the pressing piece presses the free section on the first area.
In the technical scheme of the invention, the fuel cell stack tightening device comprises an installation seat and a clamping mechanism, wherein the installation seat is arranged on the fuel cell stack main body and is provided with a first area; the clamping mechanism comprises a binding belt and a pressing mechanism, the binding belt is provided with a fixed section and a free section which are arranged at intervals, the fixed section is fixed in the first area of the mounting seat, the free section is used for being connected to the first area after being wound in the circumferential direction of the fuel cell stack, the pressing mechanism comprises a pressing piece, the pressing piece is movably arranged on one side, back to the first area, of the free section under the driving of external force so as to have a pressing stroke close to the first area, and in the pressing stroke, the pressing piece presses the free section on the first area. Under the action of external force, the pressing piece is movably arranged on the free section and can be controlled to move relative to the pressing piece, and after the external force is removed, the pressing piece presses and fixes the free section. The fuel cell stack tightening device is simple in structure, the tightness degree of the fuel cell stack tightening device can be adjusted, the binding bands are prevented from being plastically deformed, the fuel cell stack is prevented from being loosened, and the service life of the fuel cell is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic perspective view of a fuel cell stack tightening device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a portion of the structure of FIG. 1;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic perspective view of the compression member of FIG. 1;
fig. 5 is a schematic perspective view of another embodiment of a fuel cell stack tightening device provided in the present invention;
FIG. 6 is a perspective view of the hand-held support of FIG. 1;
FIG. 7 is a perspective view of the slack adjuster of FIG. 1;
FIG. 8 is a perspective view of the strap of FIG. 1;
fig. 9 is a partial perspective view of the mounting base in fig. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Tightening device for |
2212 | |
| 1 | |
3 | Tightness adjusting |
| 2 | |
31 | |
| 21 | |
32 | |
| 21a | Fixed |
33 | |
| 21b | |
4 | |
| 21c | Upper surface of the |
41 | |
| 211 | Grooves in the |
42 | |
| 22 | |
5 | Hand-held |
| 221 | |
6 | |
| 2211 | |
7 | Clamping groove |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
At present, the proton exchange membrane fuel cell is a power generation device which can directly convert chemical energy in gas into electric energy without combustion, and has the advantages of high energy density, simple structure and environmental protection, so the proton exchange membrane fuel cell has good development prospect. The output voltage and power of a single fuel cell are low, that is, according to the voltage or current requirement of a specific device, a plurality of single cells need to be stacked to form a fuel cell stack to supply power to the outside. A fuel cell stack generally includes: the end plates, collector plates, bipolar plates, and membrane electrodes are typically secured together using straps or other securing devices to form a pem fuel cell stack. However, the straps plastically deform during long-term use, resulting in possible loosening of the fuel cell stack.
In view of the above, the present invention provides a fuel cell stack tightening device 100, the fuel cell stack tightening device 100 is used to tighten a fuel cell stack 4 in a fuel cell, and fig. 1 to 9 show an embodiment of the fuel cell stack tightening device 100 according to the present invention.
Referring to fig. 1 to 3, in an embodiment, the fuel cell stack fastening device 100 includes a mounting seat 1 and a clamping mechanism 2, the mounting seat 1 is configured to be disposed on a main body of the fuel cell stack 4, and the mounting seat 1 is formed with a first area; the clamping mechanism 2 comprises a binding belt 21 and a pressing mechanism 22, the binding belt 21 is provided with a fixed section 21a and a free section 21b which are arranged at intervals, the fixed section 21a is fixed on the first area of the mounting seat 1, the free section 21b is used for being connected to the first area after being wound along the circumferential direction of the fuel cell stack 4, the pressing mechanism 22 comprises a pressing piece 221, the pressing piece 221 is movably arranged on one side of the free section 21b, which is opposite to the first area, under the driving of external force so as to have a pressing stroke close to the first area, and in the pressing stroke, the pressing piece 221 presses the free section 21b on the first area.
In the solution of the present invention, the fuel cell stack tightening device 100 is used for clamping the fuel cell stack 4 in the stacking direction of the fuel cell stack 4; the pressing member 221 is movably disposed on a side of the free section 21b opposite to the first area under driving of an external force, so as to have a pressing stroke close to the first area, so that the pressing member 221 presses the free section 21b on the first area in the pressing stroke. Thus, when an external force is applied, the pressing member 221 moves close to the first area and presses the free section 21b, and the free section 21b can be movably arranged, so that the free section 21b is driven to move relative to the pressing member 221 to clamp or loosen the fuel cell stack 4, and the tightness of the fuel cell stack 4 is adjusted; when not acted on by external force, the pressing member 221 presses the free section 21b against the first area, so that the pressing member 221 fixes the free section 21b, and clamping of the fuel cell stack 4 by the fuel cell stack tightening device 100 is realized. That is, under the action of external force, the pressing member 221 is movably disposed on the free section 21b, and can control the free section 21b to move relative to the pressing member 221, when the external force is removed, the pressing member 221 presses and fixes the free section 21b, and the tightening device 100 of the fuel cell stack can flexibly adjust the tightness degree of the fuel cell stack 4 according to actual conditions. The invention has simple structure, can adjust the tightness degree of the fuel cell stack 4 by the fastening device 100 of the fuel cell stack, avoids the plastic deformation of the binding band 21, leads the fuel cell stack 4 to have the loosening phenomenon, and improves the service life of the fuel cell.
In one embodiment, referring to fig. 4, the pressing member 221 includes a roller 2211, the roller 2211 is rotatably mounted on the mounting base 1 along its axis, the side wall of the roller 2211 is provided with a protrusion 2212, so that during the pressing stroke, the protrusion 2212 abuts against the upper surface 21c of the free section; the protrusion 2212 is arranged to gradually protrude from the side wall of the roller 2211 in the rotation direction of the pressing member 221. As such, the pressing member 221 can achieve only one-way rotation stroke driven by external force, and the protrusion 2212 has a rotation stroke close to the first area, so that the protrusion 2212 presses the free section 21b on the first area during the rotation stroke. When the operator adjusts the tightness of the fuel cell stack 4, only one side of the free section 21b needs to be pulled, and the fuel cell stack is simple in structure and convenient to operate.
Further, the outer surface of the protrusion 2212 is arranged in an arc shape, so that the protrusion 2212 smoothly rotates on the upper surface 21c of the free section, friction between the protrusion 2212 and the upper surface 21c of the free section in the rotating process is reduced, and stress concentration generated in the rotating process of the protrusion 2212 is avoided.
More specifically, the pressing member 221 is made of an elastic material at least at the protrusion 2212, so that the protrusion 2212 is in elastic contact with the upper surface 21c of the free section, thereby providing a good buffering effect, and avoiding a hard contact between the protrusion 2212 and the upper surface 21c of the free section, which causes wear of the protrusion 2212 and the upper surface 21c of the free section, and affects the service life of the fuel cell stack fastening device 100.
The abutment between the projection 2212 and the upper surface 21c of the free section is provided with a slip prevention structure. When the external force is not applied, the protrusion 2212 is in abutting contact with the upper surface 21c of the free section, so that the free section 21b cannot move in the first area under the action of friction force, and the free section 21b is locked. The arrangement of the anti-slip structure is not limited, and uneven rough surfaces may be formed on both the protrusion 2212 and the upper surface 21c of the free section, or anti-slip pads may be additionally arranged on the protrusion 2212 and the upper surface 21c of the free section. Specifically, in the present embodiment, the upper surface 21c of the free section is ground to obtain an uneven rough surface, and an abutting surface constitutes the anti-slip structure, so that the abutment of the projection 2212 with the upper surface 21c of the free section is firmer, and the stability of the pressing member 221 pressing the binding band 21 is further increased.
In addition, the tightening device 100 of the fuel cell stack further comprises a tightness adjusting device, the tightness adjusting device comprises a tightness adjusting part 3 and a driving device, the arrangement position of the tightness adjusting part 3 is not limited, the tightness adjusting part 3 can be arranged on the periphery, the upper side or the lower side of the pressing part 221 according to actual conditions, meanwhile, the tightness adjusting device can be arranged on the mounting seat 1 and can also be arranged on other components, in one embodiment, referring to fig. 1 and 6, a handheld support 5 which is independent from the mounting seat 1 is additionally arranged on one side close to the mounting seat 1 and used for mounting the tightness adjusting device, and a groove is arranged on the inner side of the handheld support 5. In another embodiment, referring to fig. 5, the slack adjuster 3 is mounted on the mounting base 1, specifically, in fig. 5, the slack adjuster 3 is correspondingly disposed on one side of the pressing member 221, the slack adjuster 3 is movably mounted on the mounting base 1 in a direction away from and close to the pressing member 221, and the slack adjuster 3 is detachably connected to the free section 21b, so that when being connected to the free section 21b, the slack adjuster 3 can drive the free section 21b to move; the driving device is mounted on the mounting base 1 (not shown in the drawings), and the driving device is connected with the elastic adjusting piece 3 so as to drive the elastic adjusting piece 3 to be far away from and close to the pressing piece 221. Furthermore, the movement of the tightness adjustment 3 can be effected directly by manual operation by the user.
Further, the slack adjuster 3 includes a rack 31 and a gear 32, the rack 31 extends to one side of the pressing member 221 in a direction away from and close to the pressing member 221, one end of the rack 31 faces the free section 21b, and is detachably connected to the free section 21 b; the gear 31 is driven by the driving device, for example, the driving device is a rotating device, and the driving device may be directly connected to the gear 32, or may be in transmission connection with an intermediate transmission member, so as to realize that the gear 32 is driven to rotate by the driving device, specifically, in this embodiment, the gear 32 is directly connected to an output shaft of the driving device, the driving device is, for example, a brushless motor, the brushless motor has a rotating output shaft, the rotating output shaft of the brushless motor is connected to the gear, and the gear 32 is engaged with the rack 31, so as to convert the rotation of the gear 32 into the linear movement of the rack 31, thereby driving the rack 31 to move away from or close to the pressing member 221. When the rack 31 is close to or far from the pressing piece 221, the free section 21b can be driven to move, so that the length of the free section 21b wound on the fuel cell stack 4 is increased and reduced, and the fuel cell stack 4 is loosened and clamped. The arrangement of the gear 32 and the rack 31 makes the whole structure more compact, and the rotation speed of the gear 32 can be controlled, so that the speed of the rack 31 driving the free section 21b to move is reduced, the rigid impact on a single battery is reduced, and the battery protection effect is achieved.
The specific way of the detachable connection between the slack adjuster 3 and the free section 21b is not limited, and the slack adjuster may be a magnetic connection, a snap connection, a threaded connection, or the like. Specifically, in the present embodiment, the slack adjuster 3 further includes a protrusion 33 (see fig. 7), and the protrusion 33 is adapted to the groove 211 on the free section. The lug 33 is arranged at the bottom of one end of the tightness adjusting piece 3 and is matched with the groove 211 on the free section, so that the tightness adjusting piece 3 is detachably connected with the free section 21 b.
The fixing section 21a is fixedly connected with the mounting base 1, and the connection mode of the fixing section and the mounting base is not limited, for example, bonding, snap connection or screw connection may be adopted. Specifically, referring to fig. 8 and 9, in the present embodiment, a buckle 6 disposed on the mounting seat is in buckle connection with a slot 7 of the fixing section.
The present invention also provides a fuel cell comprising a fuel cell stack 4 main body and the fuel cell stack binding device 100 described above. It is understood that the fuel cell stack tightening device 100 includes all the features of the fuel cell stack tightening device 100, and therefore, the technical effects brought by all the features are also provided, and the detailed description is omitted here. The tightening device 100 for the fuel cell stack is used for clamping the fuel cell stack 4, so that the tightness degree of the fuel cell stack 4 can be flexibly adjusted in the using process, and the service life of the fuel cell is prolonged. Referring to fig. 5, the main body of the fuel cell stack 4 sequentially includes a first end plate 41, a current collecting plate, a plurality of bipolar plates, a membrane electrode, and a second end plate 42 from top to bottom, the first end plate 41 and the second end plate 42 are configured to contact the tie 21, and corner regions where the first end plate 41 and the second end plate 42 contact the tie 21 are both configured as an arc structure, so that during clamping of the fuel cell stack 4, friction between the tie 21 and the fuel cell stack 4 is reduced, and the tension distribution of the tie 21 is more uniform.
In an embodiment of the fuel cell provided by the present invention, a plurality of the fuel cell stack tightening devices 100 are provided, and a plurality of the fuel cell stack tightening devices 100 are provided at intervals on the fuel cell stack 4. The fuel cell stack tightening devices 100 simultaneously clamp the fuel cell stack 4, and the clamping effect is further enhanced.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A fuel cell stack tie-down device, comprising:
a mounting seat for being disposed on the fuel cell stack main body, the mounting seat being formed with a first region; and the number of the first and second groups,
the clamping mechanism comprises a binding belt and a pressing mechanism, the binding belt is provided with a fixed section and a free section which are arranged at intervals, the fixed section is fixed in the first area of the mounting seat, the free section is used for being connected to the first area after being wound in the circumferential direction of the fuel cell stack, the pressing mechanism comprises a pressing piece, the pressing piece is movably arranged on one side, opposite to the first area, of the free section under the driving of external force so as to have a pressing stroke close to the first area, and in the pressing stroke, the pressing piece presses the free section on the first area.
2. The fuel cell stack tightening device of claim 1, wherein the pressing member includes a roller rotatably mounted to the mounting base along an axis thereof, and a side wall of the roller is provided with a projection for abutting against an upper surface of the free section during the pressing stroke;
wherein, the bulge is gradually bulged from the side wall of the roll shaft in the rotating direction of the pressed piece.
3. The fuel cell stack binding device of claim 2, wherein the outer surface of the protrusion is formed in a circular arc shape.
4. The fuel cell pair tightening device of claim 2, wherein the pressing member is made of an elastic material at least at the projections.
5. The fuel cell stack tightening device according to claim 2, wherein an anti-slip structure is provided at an abutment between the projection and the upper surface of the free section.
6. The fuel cell stack tie-down device of claim 1, wherein the tie-down device further comprises a slack adjuster device, the slack adjuster device comprising:
the tightness adjusting piece is movably arranged on the mounting seat along the direction far away from and close to the pressing piece, and can be in clutch connection with the free section, so that when the tightness adjusting piece is connected with the free section, the tightness adjusting piece can drive the free section to move; and the number of the first and second groups,
the driving device is installed on the installation seat and connected with the tightness adjusting piece so as to drive the tightness adjusting piece to be far away from and close to the pressing piece.
7. The fuel cell stack binding device of claim 6, wherein the slack adjuster comprises:
the rack extends to one side of the pressed piece along the direction far away from and close to the pressed piece, one end of the rack faces the free section and is connected with the free section in a clutchable manner; and the number of the first and second groups,
and the gear is meshed with the rack and is driven to rotate by the driving device so as to drive the rack to be far away from or close to the pressed piece.
8. The fuel cell stack lacing apparatus of claim 6, wherein the slack adjuster further comprises a tab that fits into a groove in the free section.
9. The fuel cell stack lacing apparatus of claim 1, wherein the retaining segment is bonded, snapped, or screwed to the mounting socket.
10. A fuel cell, comprising:
a fuel cell stack main body; and the number of the first and second groups,
a fuel cell stack tightening device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110427513.0A CN113206282B (en) | 2021-04-20 | 2021-04-20 | A fuel cell stack tightening device and fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110427513.0A CN113206282B (en) | 2021-04-20 | 2021-04-20 | A fuel cell stack tightening device and fuel cell |
Publications (2)
| Publication Number | Publication Date |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110251367A (en) * | 2019-06-24 | 2019-09-20 | 哈工大机器人（合肥）国际创新研究院 | Lower limb rehabilitation robot adjusts bandage, adjusts application method and slack adjuster |
| CN211077009U (en) * | 2019-08-27 | 2020-07-24 | 东莞市吉诺塑胶制品有限公司 | Nylon cable tie capable of being loosened and tightened |
| CN111884141A (en) * | 2020-08-18 | 2020-11-03 | 黄伟 | Pencil buckle in medical robot |
| CN212434677U (en) * | 2020-07-21 | 2021-01-29 | 武汉众宇动力系统科技有限公司 | Bundling device, bundling locker and fuel cell |
| CN212938143U (en) * | 2020-06-29 | 2021-04-13 | 虞佳露 | Telescopic woven belt |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110251367A (en) * | 2019-06-24 | 2019-09-20 | 哈工大机器人（合肥）国际创新研究院 | Lower limb rehabilitation robot adjusts bandage, adjusts application method and slack adjuster |
| CN211077009U (en) * | 2019-08-27 | 2020-07-24 | 东莞市吉诺塑胶制品有限公司 | Nylon cable tie capable of being loosened and tightened |
| CN212938143U (en) * | 2020-06-29 | 2021-04-13 | 虞佳露 | Telescopic woven belt |
| CN212434677U (en) * | 2020-07-21 | 2021-01-29 | 武汉众宇动力系统科技有限公司 | Bundling device, bundling locker and fuel cell |
| CN111884141A (en) * | 2020-08-18 | 2020-11-03 | 黄伟 | Pencil buckle in medical robot |
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| CN113206282B (en) | 2022-08-12 |
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