CN204289316U - Fuse piece and the fuse with this fuse piece - Google Patents
Fuse piece and the fuse with this fuse piece Download PDFInfo
- Publication number
- CN204289316U CN204289316U CN201520025669.6U CN201520025669U CN204289316U CN 204289316 U CN204289316 U CN 204289316U CN 201520025669 U CN201520025669 U CN 201520025669U CN 204289316 U CN204289316 U CN 204289316U
- Authority
- CN
- China
- Prior art keywords
- fuse
- fuse piece
- piece body
- cover plate
- connecting portion
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of fuse piece, comprise fuse piece body, described fuse piece body has two relative and sides that can be connected with contact knife, and fuse piece body offers some row rounds, round is made up of some through holes, and the line of centres of each row through hole described is parallel to the side of fuse piece body, is the connecting portion of entity between every two adjacent through-holes, the distance of described connecting portion is less than the radius of each through hole, and described fuse piece body is provided with the buffer part preventing connecting portion from rupturing.The technical problem that the utility model mainly solves is to provide a kind of fuse piece and a kind of fuse with this fuse piece, and its advantage is to make fuse piece body can extend its effective length under external force; Meet fuse piece body and can either reach stretching tightening when mounted, ensure again the technical requirement that there will not be disconnected muscle.
Description
Technical field
The utility model relates to electric power connection area, particularly relates to a kind of fuse, and the fuse piece in fuse.
Background technology
Fuse is when electric current exceeds setting; the heat produced with itself makes a kind of electrical equipment of melt fusing, open circuit; protector as short circuit and overload current is widely used in high and low voltage electric distribution system, control system and power consumption equipment, so have market prospects widely in popularizing of fuse.Existing fuse comprises fusion tube, be positioned at the quartz sand of fusion tube and fuse piece body and be positioned at the cover plate of fusion tube both sides, and the both sides of described fuse piece body connect a contact knife respectively, and contact knife runs through cover plate and is placed on outside fusion tube.
When assembling fuse, need screw tightening in fusion tube, cover plate and fusion tube is made to fit like this, but cover plate and fusion tube can produce a relative active force to fuse piece body in the process, and fuse piece body also can produce interactional internal force at this moment between its each several part, to resist the effect of this external cause, and attempt the position before making object from the location restore after distortion to distortion, also referred to as stress.
Because the spacing of two through holes adjacent in same column round is very little, almost be in a form connected, so fuse piece body is easy to occur this part of the line of centres of round in the situation, particularly fuse piece body of disconnected muscle when needing stretching tightening when mounted.
Utility model content
For the deficiency that prior art exists, the technical problem that the utility model mainly solves is to provide a kind of fuse piece, and its advantage is to make fuse piece body can extend its effective length under external force; Meet fuse piece body and can either reach stretching tightening when mounted, ensure again the technical requirement that there will not be disconnected muscle.
For achieving the above object, the utility model provides following technical scheme:
A kind of fuse piece, comprise fuse piece body, described fuse piece body has two relative and sides that can be connected with contact knife, and fuse piece body offers some row rounds, round is made up of some through holes, and the line of centres of each row through hole described is parallel to the side of fuse piece body, is the connecting portion of entity between every two adjacent through-holes, the distance of described connecting portion is less than the radius of each through hole, and described fuse piece body is provided with the buffer part preventing connecting portion from rupturing.
By adopting technique scheme, make fuse piece body can extend its effective length under external force, thus reach the situation generation preventing connecting portion from rupturing.
The utility model is set to further: described buffer part undulate structure, and extended to direction, contact knife place, both sides.Described buffer part is meander line structure, and extended to direction, contact knife place, both sides.
By adopting technique scheme, the effective length of fuse piece body can be extended, meanwhile, be equivalent to fuse piece body is connected with contact knife elasticity, make when assembling fuse, when cover plate is tightened against fusion tube, the buffer part arranged in wave can alleviate the opposing force that cover plate and fusion tube produce fuse piece body, namely the power stretched, effectively play the effect of a pulling force buffering, the connecting portion of fuse piece body fragility is made to be not easy fracture, be not easy the situation occurring disconnected muscle, thus reduce product the scrapping of causing because of disconnected muscle problem in process of production, the utility model meets the situation that fuse piece body had not only ensured when stretching tightening connecting portion but also there will not be disconnected muscle.
With a fuse for this fuse piece, comprise fusion tube, be positioned at the quartz sand of fusion tube and fuse piece body and be positioned at the cover plate of fusion tube both sides, the both sides of described fuse piece body connect a contact knife respectively, and contact knife runs through cover plate and is placed on outside fusion tube.
By adopting technique scheme, meet fuse piece body and can either reach stretching tightening when mounted, ensure again the technical requirement that there will not be disconnected muscle, namely fuse piece body can extend its effective length under external force, make fuse piece body not only ensure when stretching tightening when mounted but also there will not be the situation of disconnected muscle, buffer part serves certain cushioning effect to fuse piece body when stretching tightening, thus effectively prevents fuse piece body from occurring the situation of disconnected muscle to a certain extent.
The utility model is set to further: described cover plate is provided with the lines layer for preventing lid surface from scratching, and described cover plate has the second surface of first surface for sealing quartz sand and first surface dorsad, and described lines layer is arranged on second surface.
By adopting technique scheme, directly the lines layer for preventing lid surface from scratching is made in the surface pressure of cover plate when compacting cover plate, the effect preventing from scratching serves obvious effect, and overall production and processing production line balance efficiency is significantly improved, substantially reduce with short production cycle, factory-said value is high, saves time and manpower.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model fuse embodiment;
Fig. 2 is the structural representation of the cover plate embodiment in the utility model;
Fig. 3 is the structural representation of contact knife and fuse piece body embodiments in the utility model;
Fig. 4 is the end view of the fuse piece body in the utility model;
Fig. 5 is the vertical view of the fuse piece body in the utility model;
Fig. 6 is the vertical view of contact knife and fuse piece body in the utility model;
Fig. 7 is the A portion enlarged drawing in Fig. 3.
Reference numeral: 1, fuse piece body; 11, long limit; 12, minor face; 13, round; 131, through hole; 132, the line of centres; 133, connecting portion; 14, first surface; 15, second surface; 151, lines layer; 16, buffer part; 2, contact knife; 3, cover plate; 4, fusion tube; 5, quartz sand.
Embodiment
Referring to figs. 1 through Fig. 7, the utility model embodiment is described further.
A kind of fuse piece, comprise fuse piece body 11, described fuse piece body 11 has one group of relative side, and fuse piece body 11 offers some row rounds 13, the line of centres 132 of described round 13 is parallel to the side of fuse piece body 11, round 13 is made up of some through holes 131, and described side is provided with and prevents fuse piece body 11 to break the buffer part 16 of muscle.
Make fuse piece body 11 can extend its effective length under external force like this, thus reach the situation generation preventing connecting portion 133 from rupturing.
Described buffer part 16 undulate structure, and extended to direction, both sides contact knife 2 place.Described buffer part 16 is meander line structure, and extended to direction, both sides contact knife 2 place.
The effective length of fuse piece body 1 can be extended like this, meanwhile, be equivalent to fuse piece body 1 is connected with contact knife 2 elasticity, make when assembling fuse, when cover plate 3 is tightened against fusion tube 4, the buffer part 16 arranged in wave can alleviate an opposing force of cover plate 3 and fusion tube 4 pairs of fuse piece bodies 1 generations, namely the power stretched, effectively play the effect of a pulling force buffering, the connecting portion 133 of fuse piece body 1 fragility is made to be not easy fracture, be not easy the situation occurring disconnected muscle, thus reduce product the scrapping of causing because of disconnected muscle problem in process of production, the utility model meets the situation that fuse piece body 1 had not only ensured when stretching tightening connecting portion 133 but also there will not be disconnected muscle.
With a fuse for this fuse piece, comprise fusion tube 4, be positioned at the quartz sand 5 of fusion tube 4 and fuse piece body 1 and be positioned at the cover plate 3 of fusion tube 4 both sides, the both sides of described fuse piece body 1 connect a contact knife 2 respectively, and contact knife 2 runs through cover plate 3 and is placed on outside fusion tube 4.
Meet fuse piece body 1 like this and can either reach stretching tightening when mounted, ensure again the technical requirement that there will not be disconnected muscle, namely fuse piece body 1 can extend its effective length under external force, make fuse piece body 1 not only ensure when stretching tightening when mounted but also there will not be the situation of disconnected muscle, buffer part 16 pairs of fuse piece bodies 1 serve certain cushioning effect when stretching tightening, thus effectively prevent fuse piece body 1 from occurring the situation of disconnected muscle to a certain extent.
Described cover plate 3 is provided with the lines layer 151 for preventing cover plate 3 surface from scratching, and described cover plate 3 has the second surface 15 of first surface 14 for sealing quartz sand 5 and first surface 14 dorsad, and described lines layer 151 is arranged on second surface 15.
Time buffer part 16 is in meander line structure, its bending angle is preferably 60 degree, and the pulling force that buffer part 16 pairs of fuse piece bodies 11 can be made comparatively speaking to be subject to plays better buffering effect.
Described cover plate 33 is provided with the lines layer 151 for preventing cover plate 33 surface from scratching, and described cover plate 33 adopts aluminum alloy materials to make.Directly the lines layer 151 for preventing cover plate 33 surface from scratching is made in the surface pressure of cover plate 33 like this when compacting cover plate 33, the effect preventing from scratching serves obvious effect, and overall production and processing production line balance efficiency is significantly improved, substantially reduce with short production cycle, factory-said value is high, saves time and manpower.
Described cover plate 3 has the second surface 15 of first surface 14 for sealing quartz sand 5 and first surface 14 dorsad, and described lines layer 151 is arranged on second surface 15.
Cover plate 3 by originally changing aluminum alloy materials using iron into as raw material, can make cover plate 3 temperature rise power consumption be minimized, thus the quality of fuse is improved.This kind of fuse belongs to a kind of low-voltage variation fast acting fuse, is square tube cutter-type fuse specifically.
Described fuse piece body 1 has two panels at least, and described fuse piece body 1 adopts fine silver or fine copper to make, and described fuse piece body 1 thickness is 0.05 ~ 0.35mm, two panels fuse piece body 1 interval at least 5mm.
Two panels fuse piece body 1 is carried out to the operations improvement of specific curved shape and narrow space length, make the performance of fuse more stable, and improve the breaking capacity of fuse, safe and reliable, in addition, extend the effective length of fuse piece body 1, serve certain cushioning effect when installation, thus effectively prevent fuse piece body 1 from occurring the situation of disconnected muscle to a certain extent.
In addition, make use of the characteristic of fine silver and fine copper melt temperature like this, fine copper and melt temperature need to reach 1080 DEG C, the melt temperature of fine silver needs to reach 960 DEG C; Elongatedness direction, the two ends undulate vibrational power flow of fuse piece body 1, makes when assembling fuse.
Its respective two ends of two panels fuse piece body 1 respectively fixing point are welded on contact knife 2, select the center that the fuse piece body 1 welded must be in fusion tube 4, must not be too near to arbitrary tube wall; Should be symmetrical, certain interval should be kept each other; Spot welding should be firm, must not have rosin joint, sealing-off phenomenon, and in addition, the spacing between two panels fuse piece body 1 generally should control within 5 millimeters.
Lines on lines layer 151 can be the chiasma type of X shape, or ring-dot type, can also be the lines such as bar shaped, waveform, prevent product from the process of workshop, producing scraping, affect the attractive in appearance of product.
In sum, the utility model meets fuse piece body 1 can either reach stretching tightening when mounted, ensure again the technical requirement that there will not be disconnected muscle, namely fuse piece body 1 can extend its effective length under external force, make fuse piece body 1 not only ensure when stretching tightening when mounted but also there will not be the situation of disconnected muscle, buffer part 16 pairs of fuse piece bodies 1 serve certain cushioning effect when stretching tightening, thus effectively prevent fuse piece body 1 from occurring the situation of disconnected muscle to a certain extent.Precisely effectively can also control the time that fuse piece body 1 fuses, make full use of and grasp the characteristic of fusing.
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. a fuse piece, comprise fuse piece body, described fuse piece body has two relative and sides that can be connected with contact knife, and fuse piece body offers some row rounds, round is made up of some through holes, and the line of centres of each row through hole described is parallel to the side of fuse piece body, is the connecting portion of entity between every two adjacent through-holes, the distance of described connecting portion is less than the radius of each through hole, it is characterized in that: described fuse piece body is provided with the buffer part preventing connecting portion from rupturing.
2. fuse according to claim 1, is characterized in that: described buffer part undulate structure, and extended to direction, contact knife place, both sides.
3. fuse according to claim 1, is characterized in that: described buffer part is meander line structure, and extended to direction, contact knife place, both sides.
4. be with the fuse just like the fuse piece described in claim 1 or 2 or 3 for one kind, it is characterized in that: comprise fusion tube, be positioned at the quartz sand of fusion tube and fuse piece body and be positioned at the cover plate of fusion tube both sides, the both sides of described fuse piece body connect a contact knife respectively, and contact knife runs through cover plate and is placed on outside fusion tube.
5. fuse according to claim 4, is characterized in that: described cover plate is provided with the lines layer for preventing lid surface from scratching.
6. fuse according to claim 5, is characterized in that: described cover plate has the second surface of first surface for sealing quartz sand and first surface dorsad, and described lines layer is arranged on second surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520025669.6U CN204289316U (en) | 2015-01-15 | 2015-01-15 | Fuse piece and the fuse with this fuse piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520025669.6U CN204289316U (en) | 2015-01-15 | 2015-01-15 | Fuse piece and the fuse with this fuse piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204289316U true CN204289316U (en) | 2015-04-22 |
Family
ID=52872450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520025669.6U Expired - Fee Related CN204289316U (en) | 2015-01-15 | 2015-01-15 | Fuse piece and the fuse with this fuse piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204289316U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328461A (en) * | 2016-08-31 | 2017-01-11 | 浙江银河熔断器有限公司 | Fuse piece, fuse-link with fuse piece, and assembling method of fuse-link |
-
2015
- 2015-01-15 CN CN201520025669.6U patent/CN204289316U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328461A (en) * | 2016-08-31 | 2017-01-11 | 浙江银河熔断器有限公司 | Fuse piece, fuse-link with fuse piece, and assembling method of fuse-link |
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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 |
Granted publication date: 20150422 Termination date: 20210115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |