CN204289337U - A kind of fuse being applied to solar energy photovoltaic system - Google Patents
A kind of fuse being applied to solar energy photovoltaic system Download PDFInfo
- Publication number
- CN204289337U CN204289337U CN201520028406.0U CN201520028406U CN204289337U CN 204289337 U CN204289337 U CN 204289337U CN 201520028406 U CN201520028406 U CN 201520028406U CN 204289337 U CN204289337 U CN 204289337U
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- CN
- China
- Prior art keywords
- fuse
- link
- weld part
- contact site
- rotation section
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Abstract
The utility model discloses a kind of fuse being applied to solar energy photovoltaic system, comprise strutting piece and fuse-link, described fuse-link is arranged in strutting piece, described strutting piece comprises rotation section, contact site, weld part and housing, described housing is provided with the groove for fixing rotation section, contact site and weld part, described fuse-link is contained in rotation section, the metalwork at described fuse-link two ends is connected and fixed by contact site, is connected between described contact site and the pad on pcb board by weld part.Fuse of the present utility model is by arranging housing, fuse-link is isolated from the outside, by arranging contact site and weld part, fuse-link is connected with the outside line on pcb board, fuse-link is isolated from the outside and can pcb board be directly used in, solve fuse-link metalwork at its two ends in the process of work oxidized, and when melt explosion time affects the problem of periphery components and parts.
Description
Technical field
The utility model relates to a kind of fuse being applied to solar energy photovoltaic system.
Background technology
Fuse (fuse) refers to when electric current exceedes setting, with the heat that itself produces, melt is fused, a kind of electrical equipment of open circuit.Fuse is after exceeding setting a period of time according to electric current, makes Melt molten, thus circuit is disconnected with the heat that himself produces; Use a kind of current protector that this principle is made.
At present, binding clip is generally adopted to fix fuse-link in PCB in solar energy photovoltaic system, the structural representation of described binding clip as shown in Figure 1, comprising weld part 1 and contact chip 3, usually in PCB, is that the weld part 1 of binding clip is welded in pad, then fuse-link 10 is fixed in contact chip 3, contact chip 3 comprises two sheet metals, and the part arc that this sheet metal contacts with fuse-link 10 is arranged, and above-mentioned fuse-link 10 and binding clip form complete fuse.This fuse causes fuse-link to be directly exposed in air, in the process of work, fuse-link will bear certain electric current, this can cause the temperature of fuse-link to raise, thus makes the metalwork at fuse-link two ends easily oxidized, and this will have influence on the conductivity of fuse-link metalwork, make its precise decreasing, may cause time serious burning during other in circuit, in addition, if fuse-link is subject to the effect of fault current and explodes, due to without any safeguard procedures, the components and parts of surrounding can be made impaired.
Existing notification number is the housing that patent discloses a kind of photovoltaic group string monitoring device of CN 203722578 U, it is characterized in that, comprising: body; Described body inside is provided with the cavity for holding PCB; The side of described body is provided with boss and abutment shaft, and opposite side is provided with the groove and butt hole that can mate respectively with described boss and described abutment shaft; Described body be provided be connected with described body bearing, for holding the rotation safety fastener of fuse.
The fuse that the housing (fuse strutting piece) of above-mentioned photovoltaic group string monitoring device and fuse-link form, by being provided with snap device 8 on body, thus fuse is fixed on mounting guide rail by snap device, as shown in Figure 2, although fuse-link can be solved directly be exposed to problem in air, obviously can not directly apply in PCB.For above Problems existing, the utility model will provide a kind of novel fuse.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of fuse being applied to solar energy photovoltaic system, comprise strutting piece and fuse-link, described fuse-link is arranged in strutting piece, described strutting piece comprises rotation section, contact site, weld part and for installing rotation section, the housing of contact site and weld part, described housing is provided with for fixing rotation section, the groove of contact site and weld part, described fuse-link is contained in rotation section, the metalwork at described fuse-link two ends is connected and fixed by contact site, be connected by weld part between described contact site and the pad on pcb board.
The utility model is set to further: described rotation section comprises cylinder groove, handle and the cavity for holding fuse-link, described inner walls is provided with cylindrical piece, described cylinder groove is sheathed on cylindrical piece, described handle and cavity are arranged around cylinder groove and cylindrical piece, described cavity is arranged on enclosure interior, and described handle is arranged on outside.
The utility model is set to further: described contact site comprises metallic plate and the contact chip for contacting fuse-link two ends metalwork, and described metallic plate is integrally formed at bottom contact chip.
The utility model is set to further: described contact chip comprises the first contact chip and the second contact chip, described metallic plate comprises the first metallic plate and the second metallic plate, described first metallic plate is integrally formed at bottom the first contact chip, and described second metallic plate is integrally formed at bottom the second contact chip.
The utility model is set to further: described weld part comprises the first weld part and the second weld part, and described first weld part contacts at the first metal section, and described second weld part contacts at the second metal section.
The utility model is set to further: described housing is provided with cushion block when welding towards the one side of pcb board, and described cushion block comprises the first cushion block and the second cushion block, and described first cushion block and the second cushion block are arranged between the first weld part and the second weld part.
By adopting technique scheme, fuse is by arranging housing, fuse-link is isolated from the outside, by arranging contact site and weld part, fuse-link is connected with the outside line on pcb board, by arranging rotation section, fuse-link is placed in contact site, by arranging cushion block, fuse and pcb board are separated out a segment distance, fuse-link be isolated from the outside and can pcb board be directly used in, solving fuse-link metalwork at its two ends in the process of work oxidized, and when melt explosion time affects the problem of periphery components and parts.
The detailed construction of fuse of the present utility model is as follows:
The cut-away view of fuse of the present utility model as shown in Figure 3, described fuse comprises fuse-link, for holding the rotation section of fuse-link, for contacting the contact site of fuse-link two ends metalwork, for connecting the weld part of the pad on contact site and pcb board, and for installing the housing of rotation section, contact site and weld part, described housing is provided with the groove for fixing rotation section, contact site and weld part.In particular, described rotation section is rotationally connected with housing, when fuse-link to be installed in rotation section and reset rotation section time, contact site is arranged on the two ends of fuse-link.Described weld part is " L " shape sheet metal, and this weld part one side contacts at contact site bottom surface, and another side is arranged in housing when mounted towards the one side on pcb board.
Described rotation section comprises cavity for holding fuse-link, for being rotationally connected with the cylinder groove of inner walls and being convenient to the handle that rotation section rotates, described inner walls is provided with cylindrical piece, described cylinder groove is sheathed on cylindrical piece, described handle and cavity are arranged around cylinder groove and cylindrical piece, described cavity is arranged on enclosure interior, and described handle is arranged on outside.In particular, described cavity is also provided with for carrying out spacing to fuse-link, described cavity is arranged between the first contact chip and the second contact chip when rotation section resets.Described projection is arranged on the side towards the first contact chip when cavity resets in rotation section, and described handle is arranged on the side towards the external world when cavity resets in rotation section.When stirring handle and counterclockwise rotating along cylinder groove, the opening part of cavity can expose, and then fuse-link can be located in cavity and also conflict on projection, then reset rotation section can complete installation fuse-link.
Described contact site comprises metallic plate and the contact chip for contacting fuse-link two ends metalwork, and described metallic plate is integrally formed at bottom contact chip.Described contact chip comprises the first contact chip and the second contact chip, and described metallic plate comprises the first metallic plate and the second metallic plate, and described first metallic plate is integrally formed at bottom the first contact chip, and described second metallic plate is integrally formed at bottom the second contact chip.Described weld part comprises the first weld part and the second weld part, and described first weld part contacts at the first metal section, and described second weld part contacts at the second metal section.More particularly, the part cambered surface that described contact chip contacts with fuse-link is arranged, and when installing fuse-link according to foregoing, one end of described fuse-link is arranged in the first contact chip, and the other end of described fuse-link is arranged in the second contact chip.Described weld part is connected to the metallic plate of contact site, and time on pad weld part being welded on PCB, namely fuse is communicated with external circuit with weld part by contact site.
Described housing is provided with cushion block when welding towards the one side of pcb board, and described cushion block comprises the first cushion block and the second cushion block, and described first cushion block and the second cushion block are arranged between the first weld part and the second weld part.More particularly, the height of described cushion block is less than the length that weld part passes housing outer portion, when fuse is welded on pcb board by weld part, by cushion block, fuse and pcb board is separated out a segment distance.
Accompanying drawing explanation
Fig. 1 is the fuse structure schematic diagram being applied to pcb board;
Fig. 2 is the structural representation of conventional fuse;
Fig. 3 is the first view of the utility model fuse;
Fig. 4 is the second view of the utility model fuse.
In figure: 1, the weld part of binding clip; 3, the contact chip of binding clip; 4, cushion block; 41, the first cushion block; 42, the second cushion block; 5, weld part; 51, the first weld part; 52, the second weld part; 6, contact site; 61, the first metallic plate; 62, the second metallic plate; 63, the first contact chip; 64, the second contact chip; 7, rotation section; 71, handle; 72, projection; 73, cylinder groove; 8, snap device; 9, housing; 10, fuse-link.
Embodiment
With reference to being applied in the fuse structure schematic diagram of pcb board shown in Fig. 1, described binding clip comprises weld part 1, fixing hole and contact chip, usually in PCB, that the weld part 1 of binding clip is welded in pad, then be fixed in contact chip 3 by fuse-link 10, contact chip comprises two sheet metals, and the part arc that this sheet metal contacts with fuse-link 10 is arranged.This results in fuse-link 10 to be directly exposed in air and to use, in the process of work, fuse-link 10 will bear certain electric current, this can cause the temperature of fuse-link 10 to raise, thus make the metalwork at fuse-link 10 two ends easily oxidized, this will have influence on the conductivity of fuse-link 10 metalwork, make its precise decreasing, may cause time serious burning during other in circuit, in addition, if fuse-link 10 is subject to the effect of fault current and explodes, due to without any safeguard procedures, the components and parts of surrounding can be made impaired.
With reference in the structural representation of the conventional fuse shown in Fig. 2, fuse-link 10 is isolated from the outside by this strutting piece, solve when melt explosion time affects the problem of periphery components and parts, but, but this strutting piece is by being provided with snap device on body, thus fuse is fixed on mounting guide rail by snap device, obviously can not directly apply in PCB.
For above-mentioned problem, fuse of the present utility model gives a kind of fuse of new structure, described fuse comprises fuse-link 10, for holding the rotation section 7 of fuse-link 10, for contacting the contact site 6 of fuse-link 10 two ends metalwork, for connecting the weld part 5 of contact site 6 and the pad on pcb board, and for installing the housing 9 of rotation section 7, contact site 6 and weld part 5, described housing 9 is provided with the groove for fixing rotation section 7, contact site 6 and weld part 5.In particular, described rotation section 7 is rotationally connected with housing 9, when fuse-link 10 to be installed in rotation section 7 and reset rotation section 7 time, contact site 6 is arranged on the two ends of fuse-link 10.Described weld part 5 is " L " shape sheet metal, and this weld part 5 one side contacts at contact site 6 bottom surface, and another side is arranged in housing 9 when mounted towards the one side on pcb board.
When welding, be inserted in the pad of PCB by weld part 5, then go up tin and be welded and fixed, like this, the external circuit on pcb board has just been communicated with weld part 5.
Described rotation section 7 comprises cavity for holding fuse-link 10, for the projection 72 of spacing fuse-link 10, for being rotationally connected with the cylinder groove 73 of housing 9 inwall and being convenient to the handle 71 that rotation section 7 rotates, it is inner that described cavity is arranged on housing 9, and described projection 72 and handle 71 are all arranged on cavity.In particular, described cavity is arranged on when rotation section 7 resets between the first contact chip 63 and the second contact chip 64.Described projection 72 is arranged on cavity side towards the first contact chip 63 when rotation section 7 resets, and described handle 71 is arranged on cavity side towards the external world when rotation section 7 resets.When stirring handle 71 and counterclockwise rotating along cylinder groove 73, the opening part of cavity can expose, and then fuse-link 10 can be located in cavity and also conflict on projection 72, and then reset rotation section 7 can complete and install fuse-link 10.
After by fuse-link 10 installation, fuse-link 10 is just communicated with the external circuit on pcb board with weld part 5 by contact site 6.
Described contact site 6 comprises metallic plate and the contact chip for contacting fuse-link 10 two ends metalwork, and described metallic plate is integrally formed at bottom contact chip.Described contact chip comprises the first contact chip 63 and the second contact chip 64, described metallic plate comprises the first metallic plate 61 and the second metallic plate 62, described first metallic plate 61 is integrally formed at bottom the first contact chip 63, and described second metallic plate 62 is integrally formed at bottom the second contact chip 64.Described weld part 5 comprises the first weld part 51 and the second weld part 52, and described first weld part 51 contacts at the first metal section, and described second weld part 52 contacts at the second metal section.More particularly, the part cambered surface that described contact chip contacts with fuse-link 10 is arranged, when installing fuse-link 10 according to foregoing, one end of described fuse-link 10 is arranged in the first contact chip 63, and the other end of described fuse-link 10 is arranged in the second contact chip 64.Described weld part 5 is connected to the metallic plate of contact site 6, and time on pad weld part 5 being welded on PCB, namely fuse is communicated with external circuit with weld part 5 by contact site 6, directly carries out upper electric fuse to pcb board and gets final product work.
Described housing 9 is provided with cushion block 4 when welding towards the one side of pcb board, and described cushion block 4 comprises the first cushion block 41 and the second cushion block 42, and described first cushion block 41 and the second cushion block 42 are arranged between the first weld part 51 and the second weld part 52.More particularly, the height of described cushion block 4 is less than the length that weld part 5 passes housing 9 exterior section, when fuse is welded on pcb board by weld part 5, by cushion block 4, fuse and pcb board is separated out a segment distance.Its heat radiation is contributed to by padded for fuse.
Because fuse-link 10 and the external world isolate, even if the fuse situation that an explosion occurred because of fault current, also isolation is received, blast is not outwardly expanded, solve fuse-link 10 metalwork at its two ends in the process of work oxidized while also solve when melt explosion time affects the problem of periphery components and parts.
In sum, fuse of the present utility model is by arranging housing, fuse-link is isolated from the outside, by arranging contact site and weld part, fuse-link is connected with the outside line on pcb board, by arranging rotation section, fuse-link is placed in contact site, by arranging cushion block, fuse and pcb board are separated out a segment distance, fuse-link be isolated from the outside and can pcb board be directly used in, solving fuse-link metalwork at its two ends in the process of work oxidized, and when melt explosion time affects the problem of periphery components and parts.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (6)
1. one kind is applied to the fuse of solar energy photovoltaic system, comprise strutting piece and fuse-link, described fuse-link is arranged in strutting piece, it is characterized in that: described strutting piece comprises rotation section, contact site, weld part and the housing for installing rotation section, contact site and weld part, described housing is provided with the groove for fixing rotation section, contact site and weld part, described fuse-link is contained in rotation section, the metalwork at described fuse-link two ends is connected and fixed by contact site, is connected between described contact site and the pad on pcb board by weld part.
2. fuse according to claim 1, it is characterized in that: described rotation section comprises cylinder groove, handle and the cavity for holding fuse-link, described inner walls is provided with cylindrical piece, described cylinder groove is sheathed on cylindrical piece, described handle and cavity are arranged around cylinder groove and cylindrical piece, described cavity is arranged on enclosure interior, and described handle is arranged on outside.
3. fuse according to claim 1, is characterized in that: described contact site comprises metallic plate and the contact chip for contacting fuse-link two ends metalwork, and described metallic plate is integrally formed at bottom contact chip.
4. fuse according to claim 3, it is characterized in that: described contact chip comprises the first contact chip and the second contact chip, described metallic plate comprises the first metallic plate and the second metallic plate, described first metallic plate is integrally formed at bottom the first contact chip, and described second metallic plate is integrally formed at bottom the second contact chip.
5. fuse according to claim 4, is characterized in that: described weld part comprises the first weld part and the second weld part, and described first weld part contacts at the first metal section, and described second weld part contacts at the second metal section.
6. fuse according to claim 1, it is characterized in that: described housing is provided with cushion block when welding towards the one side of pcb board, described cushion block comprises the first cushion block and the second cushion block, and described first cushion block and the second cushion block are arranged between the first weld part and the second weld part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520028406.0U CN204289337U (en) | 2015-01-15 | 2015-01-15 | A kind of fuse being applied to solar energy photovoltaic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520028406.0U CN204289337U (en) | 2015-01-15 | 2015-01-15 | A kind of fuse being applied to solar energy photovoltaic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204289337U true CN204289337U (en) | 2015-04-22 |
Family
ID=52872471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520028406.0U Expired - Fee Related CN204289337U (en) | 2015-01-15 | 2015-01-15 | A kind of fuse being applied to solar energy photovoltaic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204289337U (en) |
-
2015
- 2015-01-15 CN CN201520028406.0U patent/CN204289337U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20210115 |