CN101290975A - Automatic controlling device of torsion of locking screw of fuel cell - Google Patents
Automatic controlling device of torsion of locking screw of fuel cell Download PDFInfo
- Publication number
- CN101290975A CN101290975A CNA2008100674865A CN200810067486A CN101290975A CN 101290975 A CN101290975 A CN 101290975A CN A2008100674865 A CNA2008100674865 A CN A2008100674865A CN 200810067486 A CN200810067486 A CN 200810067486A CN 101290975 A CN101290975 A CN 101290975A
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- CN
- China
- Prior art keywords
- control element
- nut
- fuel cell
- torsion
- lock screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- Y02E60/10—Energy storage using batteries
-
- 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
Abstract
The invention relates to a torque force automatic control device for a retaining screw of a fuel cell. A plurality of nut holes are arranged on the near edge of an end plate of the fuel cell at intervals. Two control element holes or control element slots are arranged on the outer side of and communicated with each nut hole. Each of the plurality of nut holes is provided with a nut and each of the control element holes is provided with an elastic torque force control element which is pressed against the outside of the nut to slide on the control element when torque force applied on the nut by a retaining screw exceeds a set value, thereby the torque force can be controlled within a set range automatically during operation without any torquemeter. The torque force control of the retaining screw of the fuel cell of the invention is simple and accurate, so the assembly efficiency of the fuel cell can be improved effectively.
Description
[technical field]
The present invention relates to fuel cell, particularly relate to a kind of torsion automatic control equipment of fuel cell lock screw.
[background technology]
Battery is very fast as light energy development speed, and advantage is applied to every field to fuel cell gradually so that its environmental protection, safety, high-quality and raw material sources are wide etc.Fuel cell also comprises and fixes the end cap that its internal structure is used except members such as its inner output electrode plate, gas diffusion layers, proton exchange membrane.Fuel cell will be connected end cap with screw when assembling with other member.The special construction of fuel cell requires the torsion of screw will be in certain scope, otherwise can influence the performance of battery.Traditional assemble method is that hex nut is placed the corresponding screw of shape with it on the end cap, passes nut from the outside with screw again end cap is locked.Its nut is fixed in the hole, can not rotate or move.In the tighten the screws process, need to measure the torsion of lock screw by a torsiometer.Obviously, this need are by the method for apparatus measures torsion
[summary of the invention]
The present invention is intended to address the above problem, need not can be controlled at torsion in the setting range automatically in operation by torsiometer and provide a kind of, torsion control is easy accurately, can effectively improve the torsion automatic control equipment of fuel cell lock screw of the efficient of fuel cell assembling.
For achieving the above object, the invention provides a kind of torsion automatic control equipment of fuel cell lock screw, it is characterized in that, proximal edge compartment of terrain at the fuel cell end cap is provided with a plurality of nut bore, respectively be provided with two in the outside of each nut bore and be attached thereto logical control element hole or control element groove, a nut respectively is housed in described a plurality of nut bore, in described a plurality of control elements hole, an elastic torsion control element is housed respectively, this torsion control element is resisted against on the lateral surface of nut, when the torsion that is subjected to lock screw when nut surpasses set point, just can on described control element, skid.
Be provided with limited step in the nut bore, nut is contained in the nut bore rotationally.
One side in control element hole is connected with described nut bore, and the hole wall of one side is provided with radially a location notch, and control element is provided with limited step in the hole.
The control element groove is groove or a narrow slit of being located at the described nut bore outside, and this groove or narrow slit are connected with described nut bore.
The elastic torsion control element is a rubber-like opening shape becket, and an end of its opening part is provided with the radially flanging of spacing usefulness.
Becket is contained in the control element hole, and its flanging inserts in the location notch in control element hole.
The elastic torsion control element is the arc sheet metal of rubber-like, and its two ends are provided with the flanging of the spacing usefulness that is folded to the outside.
Sheet metal is contained in the control element groove, and the flanging at its two ends inserts in the control element groove, and the part of arching of sheet metal is resisted against on the lateral surface of nut, and when sheet metal compressed at the nut that is rotated, its flanging can move in the control element groove.
Contribution of the present invention is that it efficiently solves the torsion control problem of fuel cell lock screw when assembling.Owing to be provided with a plurality of torsion control elements on the fuel cell end cap, they can apply certain external force to locking nut, make it to remain in the torque range of setting.Therefore when tightening lock screw, need not detect and control torsion by supplementary instruments such as torsiometers, and as long as implement normal running.The invention enables torsion control easy and accurate, can effectively improve the efficient of fuel cell assembling.
[description of drawings]
Fig. 1 is the parts exploded perspective schematic diagram of end cap of the present invention inboard.
Fig. 2 is the parts exploded perspective schematic diagram in the end cap of the present invention outside.
Fig. 3 is an end cover structure floor map of the present invention, and wherein, Fig. 3 A is the inboard schematic diagram of end cap, and Fig. 3 B is an end cap outside schematic diagram, and Fig. 3 C is inboard another embodiment schematic diagram of end cap.
Fig. 4 is a control element structural upright schematic diagram of the present invention.
Fig. 5 is another example structure schematic diagram of control element of the present invention.
[embodiment]
The following example is to further explanation of the present invention and explanation, and the present invention is not constituted any limitation.
Consult Fig. 1～Fig. 3, the torsion automatic control equipment of fuel cell lock screw of the present invention comprises fuel cell end cap 10, nut 20 and torsion control element 30.Shown in Fig. 1, Fig. 3 A, Fig. 3 B, fuel cell end cap 10 is square, be provided with a plurality of nut bore 11 from the inboard perforation of end cap to the circle in the outside in its proximal edge compartment of terrain, be provided with the limited step (not shown) in the nut bore 11, be used to limit the axial location of nut 20, this limited step to the aperture in the end cap outside greater than screw diameter and less than the aperture of nut bore 11.Among Fig. 1, Fig. 3 A, Fig. 3 B, be provided with two control element holes 12 symmetrically in the outside of each nut bore 11, the diameter in this control element hole is less than the nut bore diameter, a relative side in two control element holes is connected with described nut bore 11, and on the perpendicular hole wall of the line of centres with two control element holes and nut bore in two control element holes, respectively be provided with radially a location notch 121, the direction of the location notch in two control element holes is opposite, and this location notch is used for the circumferential location of torsion control element 30.In two control element holes 12, be provided with the limited step (not shown), be used for the axial location of torsion control element.
As shown in Figure 1, in described a plurality of nut bore 11, a nut 20 is housed respectively, in described a plurality of control elements hole 12, an elastic torsion control element 30 is housed respectively.Specifically, described nut 20 is common hex nut, and its maximum outside diameter makes it can rotate in nut bore 11 when the locking torsion of screw surpasses predetermined value less than the internal diameter of nut bore 11.Described torsion control element 30 structures as shown in Figure 4, this torsion control element 30 is a rubber-like stainless steel metal ring 31, it is a nonocclusive opening shape becket, be provided with the radially flanging 311 that is folded to the outside at the wherein end of its opening part, be used for spacing to the circumferencial direction of control element.Among Fig. 1, a plurality of beckets 31 are contained in respectively in each control element hole 12, and its flanging 311 inserts in the location notch 121 in control element hole, and it can not be rotated.The part outer ring surface of becket 31 near or be resisted against on the lateral surface of nut 20, nut 20 is formed suitable pressure.
Fuel cell is when assembling, and the lock screw (not shown) is inserted from the hole in the outside of the end cap shown in Fig. 2 and Fig. 3 B, and is connected with the internal thread of nut 20.When tightening lock screw, owing to hex nut 20 places in the circular nut bore 11, and its maximum outside diameter makes it trend towards rotating synchronously with lock screw under lock screw drives less than the internal diameter of nut bore 11.But in predetermined torque range,, it is formed frictional resistance, the rotation of nut 20 is prevented from because becket 31 is resisted against on the lateral surface of nut 20.When the torsion that is subjected to lock screw when nut 20 surpassed set point, nut 20 just can be broken away from the frictional resistance of becket 31 and rotate with lock screw, and skids on described becket 31.Therefore, this device need not be by servicing units such as torsiometers and the torsion of lock screw is controlled in the preset range.Can be according to the predetermined value of the design of torsion control element 30 diameters, elastic force being determined lock screw torsion.
In another embodiment shown in Fig. 3 C, control element hole 12 also can be deformed into control element groove 13, it is groove or a narrow slit of being located at described nut bore 11 outsides, this groove or narrow slit are connected with described nut bore 11, specifically, control element groove 13 is arranged on the position of above-mentioned location notch 121 symmetrically.As shown in Figure 5, an elastic torsion control element 30 is housed respectively in each control element groove 13, the torsion control element in this example is the arc sheet metal of rubber-like 32, and its two ends are provided with the flanging 321 of the spacing usefulness that is folded to the outside.Sheet metal 32 is contained in the control element groove 13, and the flanging 321 at its two ends inserts in the control element groove 13, and the length of its flanging 321 slightly is shorter than the length of control element groove 13, forms certain surplus.The part of arching of sheet metal 32 is resisted against on the lateral surface of nut 20.When sheet metal 32 compressed at the nut 20 that is rotated, its flanging 321 can be made trace and move in control element groove 13.It reaches the automatic controlled function to lock screw torsion equally.
Claims (8)
1, a kind of torsion automatic control equipment of fuel cell lock screw, it is characterized in that, be provided with a plurality of nut bore (11) in the proximal edge compartment of terrain of fuel cell end cap (10), respectively be provided with two in the outside of each nut bore and be attached thereto logical control element hole (12) or control element groove (13), a nut (20) respectively is housed in described a plurality of nut bore (11), an elastic torsion control element (30) respectively is housed in described a plurality of control elements holes (12), this torsion control element (30) is resisted against on the lateral surface of nut (20), when the torsion that is subjected to lock screw when nut (20) surpasses set point, just can on described control element (30), skid.
2, the torsion automatic control equipment of fuel cell lock screw as claimed in claim 1 is characterized in that, described nut bore is provided with limited step in (11), and nut (20) is contained in the nut bore (11) rotationally.
3, the torsion automatic control equipment of fuel cell lock screw as claimed in claim 1, it is characterized in that, one side in described control element hole (12) is connected with described nut bore (11), and the hole wall of one side is provided with radially a location notch (121), and control element is provided with limited step in the hole.
4, the torsion automatic control equipment of fuel cell lock screw as claimed in claim 1, it is characterized in that, described control element groove (13) is groove or a narrow slit of being located at described nut bore (11) outside, and this groove or narrow slit are connected with described nut bore (11).
5, the torsion automatic control equipment of fuel cell lock screw as claimed in claim 1, it is characterized in that, described elastic torsion control element (30) is a rubber-like opening shape becket (31), and an end of its opening part is provided with the radially flanging (311) of spacing usefulness.
As the torsion automatic control equipment of claim 5 or 3 described fuel cell lock screws, it is characterized in that 6, described becket (31) is contained in the control element hole (12), its flanging (311) inserts in the location notch (121) in control element hole.
7, the torsion automatic control equipment of fuel cell lock screw as claimed in claim 1, it is characterized in that, described elastic torsion control element (30) is the arc sheet metal of rubber-like (32), and its two ends are provided with the flanging (321) of the spacing usefulness that is folded to the outside.
8, as the torsion automatic control equipment of claim 7 or 4 described fuel cell lock screws, it is characterized in that, described sheet metal (32) is contained in the control element groove (13), the flanging at its two ends (321) inserts in the control element groove (13), the part of arching of sheet metal is resisted against on the lateral surface of nut (20), when compressing, its flanging (321) can move in control element groove (13) sheet metal (32) at the nut that is rotated (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100674865A CN101290975B (en) | 2008-05-30 | 2008-05-30 | Automatic controlling device of torsion of locking screw of fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100674865A CN101290975B (en) | 2008-05-30 | 2008-05-30 | Automatic controlling device of torsion of locking screw of fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101290975A true CN101290975A (en) | 2008-10-22 |
| CN101290975B CN101290975B (en) | 2010-12-01 |
Family
ID=40035130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100674865A Expired - Fee Related CN101290975B (en) | 2008-05-30 | 2008-05-30 | Automatic controlling device of torsion of locking screw of fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101290975B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222940A (en) * | 2014-05-30 | 2016-01-06 | 北京市亿能通电子有限公司 | The method of testing of the best torque value size in battery installation process |
-
2008
- 2008-05-30 CN CN2008100674865A patent/CN101290975B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222940A (en) * | 2014-05-30 | 2016-01-06 | 北京市亿能通电子有限公司 | The method of testing of the best torque value size in battery installation process |
| CN105222940B (en) * | 2014-05-30 | 2018-05-08 | 北京市亿能通电子有限公司 | The test method of optimal torque value size in battery installation process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101290975B (en) | 2010-12-01 |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20150530 |
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| EXPY | Termination of patent right or utility model |