CN201956468U - Solar photovoltaic assembly frame earthing bolt capable of removing oxidation layer - Google Patents
Solar photovoltaic assembly frame earthing bolt capable of removing oxidation layer Download PDFInfo
- Publication number
- CN201956468U CN201956468U CN201120088583XU CN201120088583U CN201956468U CN 201956468 U CN201956468 U CN 201956468U CN 201120088583X U CN201120088583X U CN 201120088583XU CN 201120088583 U CN201120088583 U CN 201120088583U CN 201956468 U CN201956468 U CN 201956468U
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- stud
- solar photovoltaic
- photovoltaic assembly
- assembly frame
- screw rod
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Abstract
The utility model discloses a solar photovoltaic assembly frame earthing bolt capable of removing an oxidation layer. The solar photovoltaic assembly frame earthing bolt comprises a stud, a nut and a scrapping member; the stud comprises a stud head and a screw; the stud surface of the screw is provided with at least one groove extending along the axial direction of the screw; the nut is screwed at one end of the screw far away from the stud head; the scraping member is sleeved on the screw and positioned between the stud head and the nut; the surface of the scraping member, which is in contact with the screw, is provided with a bulge matched with the groove on the stud; one face of the scraping member, which faces to the nut, is provided with at least one salient blade. Through additionally arranging the scraping member which can synchronously rotate with the stud at the other side of the frame opposite to the nut, the oxidation layer or a coating at a position in contact with the frame is removed while an earthing wire is installed so that the earthing wire is in favorable electric contact with the metal frame through the scraping member to obtain lower contact resistance, and the operation of installing the earthing wire is simplified.
Description
Technical field
The utility model relates to the photovoltaic module accessory, particularly relates to a kind of solar photovoltaic assembly frame earth stud that can remove oxide layer.
Background technology
The earth terminal of traditional aluminum alloy frame solar photovoltaic assembly all designs on frame, processes the earth terminal connecting hole in advance by the manufacturer of frame.During the user installation photovoltaic module, earth connection directly is connected on the earth terminal connecting hole of frame, earth terminal is gone into the earth by concentrating after several connection in series-parallel of photovoltaic component frame and connector.
For the aluminum alloy frame that makes photovoltaic module beautifies and anticorrosion, generally adopt anodic oxidation or spraying coating process to form UV resistant, anticorrosive and insulating properties excellent protection layer.Usually, the earth terminal connecting hole of photovoltaic component frame all is that directly punching out or brill mill and process on the aluminum alloy frame section bar, when the earth connection of user installation photovoltaic component frame, because photovoltaic component frame has oxide layer or coating, cause the earth connection terminal not form good electrical contact with frame, contact resistance is higher, can not make earth connection and frame form grounded circuit.
According to the relevant electrical equipment earth resistance standard-required of country, resistance value between electrical equipment earth terminal and the earth must not be greater than 4 ohm, to play good ground connection effect, otherwise, earth connection have electric leakage, thunder and lightning to hit or phenomenon such as extraneous power supply mistake overlap joint in case taking place after the photovoltaic module connection in series-parallel, can occur to form the favorable conductive loop between earth connection and the aluminum alloy frame, light then cause puncture, flashing between the photovoltaic cell sheet, heavy then cause accident of human electric shock or overall optical overhead utility to burn even breaking out of fire.
Therefore, the user need utilize mechanical system to remove frame earth connection connecting hole neighbouring oxide layer and coating voluntarily, the operation more complicated before earth connection is installed to the earth terminal connecting hole.
The utility model content
The purpose of this utility model provides a kind of solar photovoltaic assembly frame earth stud that can remove oxide layer, with near oxide layer and the coating the removal frame earth connection connecting hole when earth connection is installed, simplifies the operation that earth connection is installed.
The utility model provides a kind of solar photovoltaic assembly frame earth stud that can remove oxide layer, and described solar photovoltaic assembly frame earth stud comprises double-screw bolt, nut and scraping part:
Described double-screw bolt comprises stud head and screw rod, and the cylinder of screw rod has at least one along its axially extended groove; Described nut is screwed onto the end of screw rod away from stud head; Described scraping part is socketed on the screw rod, between stud head and nut, has the projection that matches with groove on the double-screw bolt on described scraping part and the surface that screw rod contacts, and the one side of scraping part geared nut has at least one outstanding sword bar.
Preferably, the each point on the same sword bar is not exclusively equal apart from the distance in screw rod axle center.
Preferably, each sword bar is along screw rod shape extension in the shape of a spiral radially outward.
Preferably, described solar photovoltaic assembly frame earth stud also comprises pad, and described pad is socketed on the screw rod between stud head and the scraping part.
Preferably, described pad is flat shim or spring shim.
Preferably, described spring shim is the dual crossing spring shim.
Preferably, described solar photovoltaic assembly frame earth stud also comprises sealing cap, and described sealing cap covers stud head and scraping part, and the side of described sealing cap has the wire hole that passes for earth connection.
Preferably, described sealing cap adopts waterproof material.
Preferably, described waterproof material is a rubber.
Preferably, described scraping part adopts conductive metallic material.
The solar photovoltaic assembly frame earth stud that can remove oxide layer of the present utility model, by the frame opposite side increase relative with nut can with the synchronous scraping part of rotation of double-screw bolt, described scraping part has outstanding sword bar towards the one side of frame, when earth connection is installed, by the rotation double-screw bolt, the sword bar that drives on the scraping part will be peeled off with the oxide layer or the coating at frame contact position place, the Al-alloy metal frame that exposes conduction, when solar photovoltaic assembly frame earth stud is fastening reach the moment of regulation after, outstanding sword bar can tightly be pressed together on the metal edge frame, form good electrical contact with metal edge frame, obtain lower contact resistance, simplified the operation that earth connection is installed.In addition, by increasing the dual crossing spring shim, can make solar photovoltaic assembly frame earth stud have higher mechanical strength, and have the function of retaining self-locking; By using sealing cap, the part lid that stud head, scraping part and the scraping part of solar photovoltaic assembly frame earth stud can be contacted frame is tight, makes this part relative sealing, thereby reaches the effect of waterproof and dustproof.
Description of drawings
Fig. 1 is the schematic diagram of first embodiment of the solar photovoltaic assembly frame earth stud that can remove oxide layer of the present utility model;
Fig. 2 is the schematic cross-section of double-screw bolt of the present utility model along A-A line among Fig. 1;
Fig. 3 is the schematic diagram of scraping part of the present utility model along B-B line among Fig. 1;
Fig. 4 is the schematic diagram of second embodiment of the solar photovoltaic assembly frame earth stud that can remove oxide layer of the present utility model;
Fig. 5 is the schematic diagram of the 3rd embodiment of the solar photovoltaic assembly frame earth stud that can remove oxide layer of the present utility model.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the utility model embodiment is described in further detail below in conjunction with the drawings and specific embodiments.
The utility model provides a kind of solar photovoltaic assembly frame earth stud that can remove oxide layer, and as shown in Figure 1, described solar photovoltaic assembly frame earth stud comprises double-screw bolt 1, nut 2 and scraping part 3.
Referring to Fig. 2, double-screw bolt 1 comprises stud head 11 and screw rod 12, and the cylinder of screw rod 12 has at least one along its axially extended groove 10.Stud head 11 can be the hexagon stud head, also can be first-class with the double-screw bolt of a word or cross screwdriver groove for circle.
See also Fig. 3, scraping part 3 is socketed on the screw rod 12, between stud head 11 and nut 2.Has the projection 30 that matches with groove 10 on the double-screw bolt 1 on scraping part 3 and the surface that screw rod 12 contacts.The one side of scraping part 3 geared nuts 2 has at least one outstanding sword bar 31.Scraping part 3 can adopt stainless steel or other conductive metallic material.
When earth connection was installed, the projection 30 on the scraping part 3 can be embedded on the screw rod 12 in the corresponding grooves 10 all the time, guaranteed thus and double-screw bolt 1 rotates synchronously.When earth connection is installed, by rotation double-screw bolt 1, the sword bar 31 that drives on the scraping part 3 will be peeled off with the oxide layer or the coating at frame 6 contact position places, expose the Al-alloy metal frame 6 of conduction.Afterwards, when solar photovoltaic assembly frame earth stud is fastening reach the moment of regulation after, outstanding sword bar 31 tightly is pressed together on the metal edge frame 6, forms good electrical contact with metal edge frame 6, obtains lower contact resistance, has simplified the operation that earth connection is installed.
Each point on the same sword bar on the scraping part 3 is not exclusively equal apart from the distance in screw rod 12 axle center, like this can be when fastening solar photovoltaic assembly frame earth stud, frame 6 is peeled off along oxide layer or coating in the screw rod 12 donut scopes, increase the area of the cond aluminium metal edge frame 6 that exposes, be convenient to sword bar 31 and form good electrical contact with metal edge frame 6.
Preferably, as shown in Figure 3, each sword bar 31 is along screw rod 12 shape extension in the shape of a spiral radially outward.When the direction of sword bar 31 spirals matched with the direction of double-screw bolt 1 rotation, the chip that scraping part 3 peels off can be discharged automatically along the space between the sword bar 31, avoids talus accumulation in described space, is beneficial to sword bar 31 and contacts with metal edge frame 6.
Referring to Fig. 4, described solar photovoltaic assembly frame earth stud can also comprise pad 4, and pad 4 is socketed on the screw rod 12 between stud head 11 and the scraping part 3.Pad 4 can be flat shim or spring shim etc., and described spring shim for example can be the dual crossing spring shim.Described dual crossing spring shim is fastened in opposite directions by two pads that are sphere and constitutes, like this, in the process that solar photovoltaic assembly frame earth stud screws tight, stud head 11 and scraping part 3 be extruding dual crossing spring shim constantly, make the dual crossing spring shim keep the elastic-restoring force that expands outwardly, can have higher mechanical strength, and whole solar photovoltaic assembly frame earth stud be had the effect of retaining self-locking.
As shown in Figure 5, described solar photovoltaic assembly frame earth stud can also comprise sealing cap 5.Described sealing cap 5 covers stud head 11 and scraping part 3, and the side of sealing cap 5 has the wire hole 50 that passes for earth connection.
Sealing cap 5 adopts waterproof materials, for example can be for rubber etc.The part lid that sealing cap 5 can contact stud head 11, scraping part 3 and the scraping part 3 of solar photovoltaic assembly frame earth stud frame 6 is tight, makes this part relative sealing, thereby reaches certain other waterproof and dustproof effect of level.
Consider factors such as corrosion resistance, cost and conductivity, double-screw bolt 1, nut 2, scraping part 3 and pad 4 can adopt stainless steel.
The solar photovoltaic assembly frame earth stud that can remove oxide layer of the present utility model, by the frame opposite side increase relative with nut can with the synchronous scraping part of rotation of double-screw bolt, described scraping part has outstanding sword bar towards the one side of frame, when earth connection is installed, by the rotation double-screw bolt, the sword bar that drives on the scraping part will be peeled off with the oxide layer or the coating at frame contact position place, the Al-alloy metal frame that exposes conduction, when solar photovoltaic assembly frame earth stud is fastening reach the moment of regulation after, outstanding sword bar can tightly be pressed together on the metal edge frame, form good electrical contact with metal edge frame, obtain lower contact resistance, simplified the operation that earth connection is installed.In addition, by increasing the dual crossing spring shim, can make solar photovoltaic assembly frame earth stud have higher mechanical strength, and have the function of retaining self-locking; By using sealing cap, the part lid that stud head, scraping part and the scraping part of solar photovoltaic assembly frame earth stud can be contacted frame is tight, makes this part relative sealing, thereby reaches the effect of waterproof and dustproof.
Need to prove, in this article, relational terms such as first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint and have the relation of any this reality or in proper order between these entities or the operation.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby make and comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or also be included as this process, method, article or equipment intrinsic key element.Do not having under the situation of more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
The above is preferred embodiment of the present utility model only, is not to be used to limit protection range of the present utility model.All any modifications of within spirit of the present utility model and principle, being done, be equal to replacement, improvement etc., all be included in the protection range of the present utility model.
Claims (10)
1. the solar photovoltaic assembly frame earth stud that can remove oxide layer is characterized in that, described solar photovoltaic assembly frame earth stud comprises double-screw bolt, nut and scraping part:
Described double-screw bolt comprises stud head and screw rod, and the cylinder of screw rod has at least one along its axially extended groove; Described nut is screwed onto the end of screw rod away from stud head; Described scraping part is socketed on the screw rod, between stud head and nut, has the projection that matches with groove on the double-screw bolt on described scraping part and the surface that screw rod contacts, and the one side of scraping part geared nut has at least one outstanding sword bar.
2. solar photovoltaic assembly frame earth stud as claimed in claim 1 is characterized in that the each point on the same sword bar is not exclusively equal apart from the distance in screw rod axle center.
3. solar photovoltaic assembly frame earth stud as claimed in claim 2 is characterized in that, each sword bar is along screw rod shape extension in the shape of a spiral radially outward.
4. as each described solar photovoltaic assembly frame earth stud of claim 1-3, it is characterized in that described solar photovoltaic assembly frame earth stud also comprises pad, described pad is socketed on the screw rod between stud head and the scraping part.
5. solar photovoltaic assembly frame earth stud as claimed in claim 4 is characterized in that described pad is flat shim or spring shim.
6. solar photovoltaic assembly frame earth stud as claimed in claim 5 is characterized in that described spring shim is the dual crossing spring shim.
7. as each described solar photovoltaic assembly frame earth stud of claim 1-3, it is characterized in that, described solar photovoltaic assembly frame earth stud also comprises sealing cap, and described sealing cap covers stud head and scraping part, and the side of described sealing cap has the wire hole that passes for earth connection.
8. solar photovoltaic assembly frame earth stud as claimed in claim 7 is characterized in that, described sealing cap adopts waterproof material.
9. solar photovoltaic assembly frame earth stud as claimed in claim 8 is characterized in that described waterproof material is a rubber.
10. as each described solar photovoltaic assembly frame earth stud of claim 1-3, it is characterized in that described scraping part adopts conductive metallic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120088583XU CN201956468U (en) | 2011-03-29 | 2011-03-29 | Solar photovoltaic assembly frame earthing bolt capable of removing oxidation layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120088583XU CN201956468U (en) | 2011-03-29 | 2011-03-29 | Solar photovoltaic assembly frame earthing bolt capable of removing oxidation layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201956468U true CN201956468U (en) | 2011-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120088583XU Expired - Lifetime CN201956468U (en) | 2011-03-29 | 2011-03-29 | Solar photovoltaic assembly frame earthing bolt capable of removing oxidation layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201956468U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157803A (en) * | 2011-03-29 | 2011-08-17 | 英利能源（中国）有限公司 | Frame earth stud of solar photovoltaic module capable of eliminating oxide layer |
| CN105633880A (en) * | 2016-03-03 | 2016-06-01 | 张忠江 | Compression-type compact busduct shell assembly |
| CN107331986A (en) * | 2017-06-13 | 2017-11-07 | 广东美的厨房电器制造有限公司 | Ground terminal, ground connection body, ground structure and household electrical appliance |
-
2011
- 2011-03-29 CN CN201120088583XU patent/CN201956468U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157803A (en) * | 2011-03-29 | 2011-08-17 | 英利能源（中国）有限公司 | Frame earth stud of solar photovoltaic module capable of eliminating oxide layer |
| CN105633880A (en) * | 2016-03-03 | 2016-06-01 | 张忠江 | Compression-type compact busduct shell assembly |
| CN107331986A (en) * | 2017-06-13 | 2017-11-07 | 广东美的厨房电器制造有限公司 | Ground terminal, ground connection body, ground structure and household electrical appliance |
| CN107331986B (en) * | 2017-06-13 | 2019-06-07 | 广东美的厨房电器制造有限公司 | Ground terminal, ground connection ontology, ground structure and household electrical appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HENGSHUI YINGLI NEW ENERGY CO., LTD. Free format text: FORMER OWNER: YINGLI ENERGY (CHINA) CO., LTD. Effective date: 20120626 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 071051 BAODING, HEBEI PROVINCE TO: 053000 HENGSHUI, HEBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120626 Address after: 053000 No. seventeen, No. 969, weft Road, Hengshui Economic Development Zone, Hebei, China Patentee after: Hengshui Yingli New Energy Co., Ltd. Address before: 071051 Chaoyang North Street, Hebei, Baoding, No. 3399 Patentee before: Yingli Energy (China) Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110831 Effective date of abandoning: 20130508 |
|
| RGAV | Abandon patent right to avoid regrant |