CN206322661U - Photovoltaic fuse - Google Patents
Photovoltaic fuse Download PDFInfo
- Publication number
- CN206322661U CN206322661U CN201620946888.2U CN201620946888U CN206322661U CN 206322661 U CN206322661 U CN 206322661U CN 201620946888 U CN201620946888 U CN 201620946888U CN 206322661 U CN206322661 U CN 206322661U
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- Prior art keywords
- fuse
- link
- earthenware
- disjunction
- photovoltaic
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Abstract
The utility model discloses a kind of photovoltaic fuse, aim to provide the photovoltaic fuse that a kind of breaking capacity value is 1500V, its breaking capacity can not be more than by ensuring the maximum short circuit current of protection circuit, its drip irrigation device is to include earthenware, the length of earthenware is 38mm, its a diameter of 10mm, fuse-link and the end cap assembly for being respectively arranged on earthenware two ends in earthenware, end cap assembly includes the asbestos board for being connected to fuse-link one end, the seal cap being set on asbestos board and earthenware and the head protector being sheathed in seal cap, fuse-link is in strip sheet, fuse-link is provided with the first disjunction hole for being distributed in fuse-link end and the second disjunction hole being distributed in the middle part of fuse-link, second disjunction hole has the wide formation of the remaining piece of fuse-link the segmenting part of equal in width, reach effective open circuit protection.
Description
Technical field
The utility model is related to fuse field, more particularly to a kind of photovoltaic fuse.
Background technology
Fuse is also referred to as fuse, and it is a kind of installs in circuit, it is ensured that the electric elements of circuit safety operation.
Fuse is exactly a kind of short-circuit protector in fact, is widely used in distribution system and control system, is substantially carried out short-circuit protection or tight
Weight overload protection.
With the development of advanced technology, the demand to high-quality fuse is increasing always.The short-circuit state of solar panels
The common fuse of substantial amounts of current start can not be produced, it is fused in time, circuit board is protected, so existing molten
Disconnected device has that protection domain is small, and small overload performance is bad, the problem of current characteristics is unstable.
The part of most critical is the melt being arranged in fusion tube in fuse, and melt has a critically important index, just
It is breaking capacity, the breaking capacity of fuse is exactly that fuse can safely cut off the maximum current of circuit, generally
Refer to short circuit current flow.Specifically it is exactly the disjunction circuit that fuse allows for being perfectly safe when running into short circuit current flow, i.e.,
Do not occur any unsafe factor in breaking course, such as persistence drag arc, repeatedly conducting, it is broken, splash, burning, so that quick-fried
Fry.Each fuse must all provide its breaking capacity value, can not be big by the maximum short circuit current of protection circuit when using
In its breaking capacity.
Utility model content
In view of the shortcomings of the prior art, the purpose of this utility model is to provide the photovoltaic that breaking capacity value is 1500V
Fuse.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of photovoltaic fuse,
Fuse-link including earthenware, in earthenware and the end cap assembly for being respectively arranged on earthenware two ends, the end cap assembly bag
Include and be connected to the asbestos board of fuse-link one end, the seal cap being set on asbestos board and earthenware and be sheathed in seal cap
Head protector, the fuse-link is in strip sheet, and the fuse-link is provided with the first disjunction hole for being distributed in fuse-link end and divided
The second disjunction hole in the middle part of fuse-link is distributed in, wide formed of the remaining piece of fuse-link is had dividing for equal in width by the second disjunction hole
Disconnected portion.
By above-mentioned setting, earthenware can bear high pressure, can prevent that electric arc from letting out during especially for 1500V voltages
Dew, end-cap assembly structure can allow the close turn-on current of circuit so as to improving the engagement capacity of connecting terminal, in addition to solution
Certainly due to a part of remaining piece inside segmenting part be wider than it is small caused by the part equivalent resistance it is excessive so that fuse power consumption mistake
The problem of big, due to the first disjunction hole and the second disjunction hole, so after bearing to exceed rated voltage 1500V, its
On segmenting part can quickly disjunction, realize open circuit protection.
Can be preferably as concrete scheme of the present utility model：The second disjunction hole is rectangle, and the corner of rectangle
With fillet.
By above-mentioned setting, rectangular configuration is used, so that the segmenting part with one section of equal in width, but the two of its segmenting part
Arc-shaped transition of the end with fillet, will not produce local electrical resistance and change excessive and generate heat when electric current flows through, then can be true
Protect fusing reliability, it is to avoid mistake fusing generation.
Can be preferably as concrete scheme of the present utility model：The first disjunction hole is circle.
By above-mentioned setting, procedure of processing can be simplified using the first circular disjunction hole, and avoid product from point occur
Sharp part, so as to improve the current carrying capacity of fuse-link.
Can be preferably as concrete scheme of the present utility model：2, and and asbestos board has been arranged side by side in the fuse-link
Into 90 degree.
By above-mentioned setting, fuse-link and asbestos board are fully contacted, 90 degree of structure is formed, and be provided with the molten of 2 rows
Disconnected body, can effectively prevent wrong diagnosis road.
Can be preferably as concrete scheme of the present utility model：The first disjunction hole is provided with 6, the second disjunction hole
It is provided with 2.
By above-mentioned setting, when the electric current of excess flows through fuse-link, it can go out turn off in the second disjunction hole,
It thereby may be ensured that the symmetry of both sides fuse-link.
Can be preferably as concrete scheme of the present utility model：The length of the earthenware is 38mm, and its is a diameter of
10mm.Segmenting part is provided with dope layer, and the dope layer is hemispheric salient point.
By above-mentioned setting, earthenware effectively can be isolated and be protected in fuse-link 1500V disjunctions.
In summary, the utility model has the advantages that：
1st, it is simple in construction, be easy to manufacture, reduce production cost；
2nd, disjunction effectively can be carried out in 1500V over-voltage and over-currents, plays and be effectively protected.
Brief description of the drawings
Fig. 1 is the structural representation after the assembling of the present embodiment 1；
Fig. 2 is the configuration schematic diagram of the present embodiment 1；
Fig. 3 is the structural representation of the fuse-link of the present embodiment 1；
Fig. 4 is the structural representation of the fuse-link of the present embodiment 2.
1, earthenware in figure；2nd, fuse-link；3rd, end cap assembly；31st, asbestos board；32nd, seal cap；33rd, head protector；4th, first
Disjunction hole；5th, the second disjunction hole；6th, segmenting part；7th, dope layer.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment 1：As shown in figure 1, a kind of photovoltaic fuse, including earthenware 1, the length of earthenware 1 is 38mm, and its is straight
Footpath is 10mm, and the inner hollow of earthenware 1 can place fuse-link 2.As shown in Fig. 2 being connected with end cap group at the two ends of earthenware 1
Part 3, end cap assembly 3 includes the asbestos board 31 for being welded in the one end of fuse-link 2, the sealing being set on asbestos board 31 and earthenware 1
Cap 32 and the head protector 33 being sheathed in seal cap 32.Asbestos board 31 is circle, and asbestos board 31 is asbestos material, plays arc extinguishing
Effect, diameter is less than the internal diameter of seal cap 32, is additionally provided with manhole in seal cap 32, head protector 33 is enclosed within seal cap 32
On.
As shown in figure 3, fuse-link 2 is in strip sheet, fuse-link 2 is provided with the first disjunction for being distributed in the end of fuse-link 2
Hole 4 and the second disjunction hole 5 for being distributed in the middle part of fuse-link 2, the second disjunction hole 5 have wide formed of the remaining piece of fuse-link 2 etc.
The segmenting part 6 of width.Second disjunction hole 5 is rectangle, and the corner of rectangle has fillet.First disjunction hole 4 is circle.Fuse-link
2 have been arranged side by side 2, and with asbestos board 31 into 90 degree.First disjunction hole 4 is provided with 6, and the second disjunction hole 5 is provided with 2.
Due to two kinds of disjunction hole, so with efficient breaking capacity.Earthenware 1 can bear high pressure, particularly pair
It can prevent that electric arc from revealing when 1500V voltages, end-cap assembly structure can allow line so as to improving the engagement capacity of connecting terminal
The close turn-on current in road, in addition to solving because a part of remaining piece inside segmenting part 6 is wider than small caused part
Equivalent resistance is excessive so that the problem of excessive fuse power consumption, due to the first disjunction hole 4 and the second disjunction hole 5, so
Bear exceed rated voltage 1500V after, its on segmenting part 6 can quickly disjunction, realize open circuit protection.
Embodiment 2：As shown in figure 4, being with the difference of embodiment 1：Segmenting part 6 is provided with dope layer 7, the dope layer
7 be hemispheric salient point.Dope layer 7 is constituted including following parts by weight：White carbon is 1 ~ 5 part, silane coupler is 1 ~ 10 part, carbon
Acid group compound is 5 ~ 15 parts, alkali metal compound is 5 ~ 15 parts, hydroxy-end capped dimethyl silicone polymer is 25 ~ 75 parts.In vain
Carbon black has preferable strength and extension property, tear resistance, wearability and elasticity, and chemical stability, and silane coupler can be carried
The performances such as they high adhesive strength, water-fast, weatherability.The pitch capability coating of fuse-link 2 can effectively improve fuse-link 2
Pitch capability, strengthens its performance.Carbonic acid radical compound is calcium carbonate.Alkali metal compound uses NaOH.Fuse-link 2 is in piece
Shape, enables to dope layer 7 preferably to smear in covering.
This specific embodiment is only to explain of the present utility model, and it is not to limitation of the present utility model, ability
Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but
As long as all being protected in right of the present utility model by Patent Law.
Claims (7)
1. a kind of photovoltaic fuse, including earthenware (1), the fuse-link (2) in earthenware (1) and it is respectively arranged on earthenware
(1) end cap assembly (3) at two ends, the end cap assembly (3) includes being connected to the asbestos board (31) of fuse-link (2) one end, is arranged
Seal cap (32) on asbestos board (31) and earthenware (1) and the head protector (33) being sheathed in seal cap (32), it is special
Levy and be：The fuse-link (2) is in strip sheet, and the fuse-link (2), which is provided with, is distributed in first point of fuse-link (2) end
Disconnected hole (4) and the second disjunction hole (5) being distributed in the middle part of fuse-link (2), the second disjunction hole (5) remains fuse-link (2)
Remaining piece is wide to form the segmenting part (6) with equal in width.
2. photovoltaic fuse according to claim 1, it is characterised in that：The second disjunction hole (5) is rectangle, and rectangle
Corner there is fillet.
3. photovoltaic fuse according to claim 2, it is characterised in that：The first disjunction hole (4) is circle.
4. photovoltaic fuse according to claim 3, it is characterised in that：The fuse-link (2) has been arranged side by side 2, and
With asbestos board (31) into 90 degree.
5. photovoltaic fuse according to claim 1, it is characterised in that：The first disjunction hole (4) is provided with 6,
Two disjunction holes (5) are provided with 2.
6. photovoltaic fuse according to claim 1, it is characterised in that：The length of the earthenware (1) is 38mm, and its is straight
Footpath is 10mm.
7. photovoltaic fuse according to claim 1, it is characterised in that：The segmenting part (6) is provided with dope layer (7),
The dope layer (7) is hemispheric salient point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620946888.2U CN206322661U (en) | 2016-08-24 | 2016-08-24 | Photovoltaic fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620946888.2U CN206322661U (en) | 2016-08-24 | 2016-08-24 | Photovoltaic fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206322661U true CN206322661U (en) | 2017-07-11 |
Family
ID=59262296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620946888.2U Active CN206322661U (en) | 2016-08-24 | 2016-08-24 | Photovoltaic fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206322661U (en) |
-
2016
- 2016-08-24 CN CN201620946888.2U patent/CN206322661U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |