CN204011346U - There are the safeties of spring fuse - Google Patents
There are the safeties of spring fuse Download PDFInfo
- Publication number
- CN204011346U CN204011346U CN201420362835.7U CN201420362835U CN204011346U CN 204011346 U CN204011346 U CN 204011346U CN 201420362835 U CN201420362835 U CN 201420362835U CN 204011346 U CN204011346 U CN 204011346U
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- China
- Prior art keywords
- spring
- shape memory
- safeties
- round platform
- fuse
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Abstract
The utility model proposes a kind of safeties with spring fuse, the described safeties with spring fuse comprise: shape memory spring (3), bonnet (2), the electric conductor made by insulating material, be arranged in described base, described shape memory spring (3) is set in outside described the first cylindrical sleeve, described in there is spring fuse safeties also comprise: slide block (4), shell (6) and chute.Described chute is provided with stuck point, and described shape memory spring (3) has the first memory area and the second memory area, and at described the first memory area, described stem is in contact with one another to form with electric conductor and is connected; At described the second memory area, described shape memory spring (3) is extended, and flicks described plate-like portion, and described stem and electric conductor disconnect; At described the first memory area, described insulated dowel is positioned at the first side of described stuck point, and at described the second memory area, described insulated dowel is positioned at the second side of described stuck point.
Description
Technical field
The utility model relates to a kind of safeties with spring fuse.
Background technology
Traditional insurance silk is as overcurrent and overheating protection at present; can effectively avoid electrical equipment in the time that circuit is made mistakes, to cause excess Temperature; protective device part is not damaged; but traditional insurance silk still exists many limitation; be exactly wherein most fuses be disposable use, fusing after just can not use again.
Utility model content
The utility model provides a kind of safeties with spring fuse, can not reusable problem to solve existing fuse.
For this reason, the utility model proposes a kind of safeties with spring fuse, the described safeties with spring fuse comprise: shape memory spring 3, the material of described shape memory spring 3 is memorial alloy, described shape memory spring 3 is cylindrical spring, described in there is spring fuse safeties also comprise:
The bonnet 2 of being made by insulating material, described bonnet 2 comprises: base, be arranged on the first cylindrical sleeve on described base and run through described base and the connecting hole of described the first cylindrical sleeve;
Electric conductor, is arranged in described base and is arranged in described connecting hole;
Described shape memory spring 3 is set in outside described the first cylindrical sleeve;
Slide block 4, described slide block 4 comprises: the conductive part and the insulation division that connect successively, described conductive part comprises: the stem and the plate-like portion that connect successively, and the bore of described stem is less than the internal diameter of described shape memory spring 3, and the bore of described plate-like portion is greater than the external diameter of shape memory spring 3; Described shape memory spring 3 is pushed against in described plate-like portion; Described insulation division comprises: the support portion being connected with described plate-like portion and the insulated dowel extending laterally from described support portion, and described insulated dowel is cylindrical;
Described shape memory spring 3 has the first memory area and the second memory area, and at described the first memory area, described stem is in contact with one another to form with electric conductor and is connected; At described the second memory area, described shape memory spring 3 is extended, and flicks described plate-like portion, and described stem and electric conductor disconnect;
Shell 6, is tubular, and described shell 6 is connected with described base, and described shell 6 holds described the first cylindrical sleeve, described shape memory spring 3, described conductive part and described support portion;
Chute, be arranged on the sidewall of described shell 6, described chute is strip, described chute is provided with stuck point, described chute is divided into both sides by described stuck point, be respectively the first side of stuck point and the second side of stuck point, in described stuck point both sides, the width of described chute is greater than the diameter of described insulated dowel, at described stuck point place, the width of described chute is less than the diameter of described insulated dowel, at described the first memory area, described insulated dowel is positioned at the first side of described stuck point, at described the second memory area, described insulated dowel is positioned at the second side of described stuck point.
Further, described electric conductor comprises: Ka Tai and second sleeve with opening being connected with described Ka Tai, described card decometer is connected on described base, described the second sleeve extend in described connecting hole, described the second sleeve has blind hole along its length, described blind hole comprises: the cylindrical openings connecting successively and the blind end of taper, at described the first memory area, described stem extend in described blind hole and is connected to the blind end place of described taper.
Further, described shape memory spring 3 is horizontally disposed with, the described safeties with spring fuse also comprise: the end the horizontally extending straight line pin that are connected to described shape memory spring 3, the axis of the parallel described shape memory spring 3 of described straight line pin, and be supported on described base, and described straight line pin stretches out described base.
Further, described plate-like portion and described support portion are identical discoid of diameter.
Further, the number of described insulated dowel is two, and two described insulated dowels are symmetricly set on described support portion, and the number of described chute is two, is symmetricly set on described shell.
Further, described stuck point is circular arc.
Further, described base comprises: the first round platform and the second round platform that is connected described the first round platform, the external diameter of described the first round platform is greater than the external diameter of described the second round platform, described the first cylindrical sleeve is connected with described the second round platform, and the external diameter of described the first cylindrical sleeve is less than described the second round platform, described shell 6 is cylindrical shape, and the internal diameter of described shell equals the external diameter of described the second round platform, and the external diameter of described shell equals the external diameter of described the first round platform.
Further, described Ka Tai is circular, described connecting hole runs through described the first round platform, and the aperture that is positioned at the connecting hole at described the first round platform place equals the external diameter of described Ka Tai, and it is concordant with the outer end of described the first round platform that described card decometer is connected on the outer end of described the first round platform place and described Ka Tai.
Shape memory spring 3 has round trip memory, is contraction-like under room temperature, is elongate under high temperature; Bonnet 2 the inside plugs are as the electric conductor 1 of circuit one end; Shape memory spring 3 itself can be used as the circuit other end (for example, shape memory spring 3 is stretched out a pin and is fixed on bonnet 2), and slide block 4 one end are inserted in bonnet 2 cores and contact with electric conductor 1, and another end face contacts with shape memory spring 3.Insulated dowel 5 is fixed on slide block 4; On shell 6, have chute, chute is provided with salient point 7, and the dielectric pin 5 in slide block 4 is had to certain resistance, and when circuit pathways, it can clamp slide block, allows slide block tightly contact with spring; Simultaneously two salient points of chute rear slider that can also prevent from opening circuit slides back to and spring contact because of vibrations.
The in the situation that of normal power-up, electric current flows into from electric conductor 1, through slide block 4, then flows out through shape memory spring 3, in the time that electric current is excessive, shape memory spring 3 temperature raise, and deform, slide block 4 is stressed to be open, and disconnect and contacting with electric conductor 1, thus open circuit.After open circuit, marmem no longer includes electric current to be passed through, and its temperature declines, and distortion retraction occurs to reply marmem, but slide block can not slide back to connect circuit.
And then, if by the installation of fuse unit be in the vertical direction install be 90 °, even if slide block can be because Gravitational sliding, but due to the stuck point design of chute, slide block can be stuck, to such an extent as to can not slide into chute bottom, therefore not contacting with the electric conductor in marmem alloy and bonnet in slide block, therefore do not form circuit passband, only need, after circuit maintenance normally, artificially just can connect circuit by movable slider.
The utility model has well solved after open circuit, and marmem occurs to reply and is out of shape the problem of again connecting circuit, makes its use procedure more safe and reliable.
Brief description of the drawings
Fig. 1 is according to the perspective view of the safeties with spring fuse of the utility model embodiment;
Fig. 2 is the main TV structure schematic diagram according to the safeties with spring fuse of the utility model embodiment;
Fig. 3 is according to the plan structure schematic diagram of the safeties with spring fuse of the utility model embodiment;
Fig. 4 is according to the side-looking structural representation of the safeties with spring fuse of the utility model embodiment;
Fig. 5 is A-A place sectional structure schematic diagram in Fig. 3;
Fig. 6 is B place structure for amplifying schematic diagram in Fig. 3;
Operating state when Fig. 7 shows the safeties with spring fuse and is path with sectional structure;
It is the operating state while opening circuit that Fig. 8 shows the safeties with spring fuse with sectional structure.
Drawing reference numeral explanation:
1, electric conductor 11, taper blind end 12, card platform 14, the second sleeve 2, bonnet 21, the first round platform 23, the second round platform 25, the first cylindrical sleeve 3, shape memory spring 31, straight line pin 4, slide block 41, stem 43, plate-like portion 45, support portion 5, insulated dowel 6, shell 60, chute 7, stuck point
Embodiment
Understand for technical characterictic of the present utility model, object and effect being had more clearly, now contrast brief description of the drawings embodiment of the present utility model.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the utility model proposes a kind of safeties with spring fuse, as shown in Figure 5, the described safeties with spring fuse comprise: shape memory spring 3, the material of described shape memory spring 3 is memorial alloy, material selection NiTiCu shape-memory alloy wire, in other words, the cylindrical spring of described shape memory spring 3 for being made by memorial alloy, described in there is spring fuse safeties also comprise:
The bonnet 2 of being made by insulating material, described bonnet 2 comprises: base, be arranged on the first cylindrical sleeve 25 on described base and run through described base and the connecting hole of described the first cylindrical sleeve (not illustrating separately in figure);
Electric conductor 1, for example, be copper core, is arranged in described base and is arranged in described connecting hole;
Described shape memory spring 3 is set in outside described the first cylindrical sleeve 25, and has gap between described shape memory spring 3 and described the first cylindrical sleeve 25, namely, between shape memory spring 3 and described the first cylindrical sleeve 25, does not form and is electrically connected; (because the one the first cylindrical sleeve 25 itself are exactly insulating material);
Slide block 4, as shown in Figure 5, described slide block 4 comprises: the conductive part and the insulation division that connect successively, conductive part and insulation division are for example binded or bonding composition by copper and plastics two parts, described conductive part comprises: the stem 41 and the plate-like portion 43 that connect successively, the bore of described stem 41 is less than the internal diameter of described shape memory spring 3, between shape memory spring 3 and stem 41, does not form directly and contacts, and does not form direct electrical connection; The bore of described plate-like portion 43 is greater than the external diameter of shape memory spring 3; Described shape memory spring 3 is pushed against in described plate-like portion 43, and namely, shape memory spring 3 forms and directly contact and direct electrical connection with plate-like portion 43; Described insulation division comprises: the support portion 45 being connected with described plate-like portion 43 and the insulated dowel 5 extending laterally from described support portion 45, and described insulated dowel 5 is cylindrical;
Described shape memory spring 3 has the first memory area and the second memory area, at described the first memory area, i.e. and position under normal temperature, as shown in Figure 7, described stem 41 is in contact with one another to form with electric conductor 1 and is connected; At described the second memory area, i.e. position under the condition of high temperature, as shown in Figure 8, described shape memory spring 3 is extended, and flicks described plate-like portion 43, and described stem 41 disconnects with electric conductor 1; Namely, at normal temperatures, in the raw or compressive state, described stem 41 is in contact with one another to form with electric conductor 1 and is connected shape memory spring 3; Under the deformation temperature higher than normal temperature, shape memory spring 3 is in stretching or elongation state;
Shell 6, is tubular, and described shell 6 is connected with described base, and described shell 6 holds described the first cylindrical sleeve 25, described shape memory spring 3, described conductive part 1 and described support portion 45; Shell 6 plays the effect of protection and isolation, and shell 6 is for example for transparent material is made, to observe the break-make of stem 41 and electric conductor 1;
Chute 60, be arranged on the sidewall of described shell 6, as shown in Figure 5, described chute is strip, for example, for the strip of sealing, described chute 60 is provided with stuck point 7, the strip chute of sealing is divided into both sides by described stuck point 7, be respectively the first side of stuck point and the second side of stuck point, in described stuck point both sides, the width of described chute is greater than the diameter of described insulated dowel 5, at described stuck point 7 places, the width of described chute is less than the diameter of described insulated dowel, at described the first memory area, described insulated dowel 5 is positioned at the first side of described stuck point, it is the left side that insulated dowel 5 is connected to stuck point, stuck point 7 numbers are for example two, are arranged in the upper and lower of chute, at described the second memory area, described insulated dowel 5 is positioned at the second side of described stuck point, it is the right-hand member that insulated dowel 5 is connected to the chute 60 of sealing, namely, when insulated dowel 5 moves from chute, the second side that moves by side to stuck point from first of stuck point need to just can complete by the elastic force shape memory spring 3 deformation or artificial external force, can not automatically reply.Stuck point plays small inhibition, and to prevent that shape memory spring 3 from automatically replying, but stuck point can not hinder under elastic force after shape memory spring 3 deformation or artificial External Force Acting, the movement of shape memory spring 3 in chute.Two stuck points (salient point) of chute rear slider that can prevent from opening circuit slides back to shape memory spring 3 and contacts because of vibrations.
Further, as shown in Figure 5, described electric conductor 1 comprises: card platform 12 and second sleeve 14 with opening being connected with described Ka Tai, described card platform 12 is connected on described base, described the second sleeve 14 extend in the connecting hole of base, described the second sleeve 14 has blind hole along its length, described blind hole comprises: the cylindrical openings (not indicating in figure) connecting successively and the blind end 11 of taper, at described the first memory area, described stem 41 extend in described blind hole and is connected to blind end 11 places of described taper, like this, can ensure to state stem 41 and electric conductor 1 being electrically connected at normal temperatures.
Further, as shown in Figure 5, described shape memory spring 3 is horizontally disposed with, the described safeties with spring fuse also comprise: the end the horizontally extending straight line pin 31 that are connected to described shape memory spring 3, the axis of the parallel described shape memory spring 3 of described straight line pin, and be supported on the first round platform 21 of described base, and described straight line pin 31 end of stretching out described base, for example stretch out the first round platform 21.Straight line pin 31 and electric conductor 1 are respectively two links of circuit, and when these two links form electrical connection, circuit is in path; When these two links disconnect electrical connection, circuit is in opening circuit; Straight line pin 31 is integrated and makes with shape memory spring 3, takes full advantage of the performance that shape memory spring 3 is conducted electricity.
Further, as shown in Figure 5, described plate-like portion 43 and described support portion 45 are identical discoid of diameter.
Further, as shown in Figure 2 and Figure 4, the number of described insulated dowel 5 is two, and two described insulated dowels 5 are symmetricly set on described support portion 45, and the number of described chute 60 is two, is symmetricly set on described shell.Like this, can be from two Position Control insulated dowels 5.
Further, as shown in Figure 6, described stuck point 7 is circular arc, for example, be semicircle, to form round and smooth clamping surface, forms round and smooth contact with insulated dowel 5, ensures the stable of operating process.
Further, as shown in Figure 5, described base comprises: the first round platform 21 and the second round platform 23 that is connected described the first round platform, the external diameter of described the first round platform 21 is greater than the external diameter of described the second round platform 23, described the first cylindrical sleeve 25 is connected with described the second round platform 23, and the external diameter of described the first cylindrical sleeve 25 is less than described the second round platform 23, described shell 6 is cylindrical shape, the internal diameter of described shell 6 equals the external diameter of described the second round platform 23, the external diameter of described shell 6 equals the external diameter of described the first round platform 21, like this, can make the compact conformation of the safeties with spring fuse, stable connection.
Further, as shown in Figure 5, described card platform 12 is circular, described connecting hole runs through described the first round platform 21, the aperture that is positioned at the connecting hole at described the first round platform place equals the external diameter of described Ka Tai, and it is concordant with the outer end of described the first round platform that described card platform 12 is connected to the outer end of described the first round platform 21 places and described Ka Tai.Like this, can make the compact conformation of the safeties with spring fuse from end construction, stable connection, outward appearance is neat.
When normal current passes through, electric current is flow to by the core electric conductor 1 of bonnet 2, then flows to shape memory spring 3 by the plate-like portion 43 on slide block 4, then flows out from the straight line pin 31 of shape memory spring 3 ends, forms path; In the time that electric current is excessive, marmem temperature raises, and temperature is raised to the distortion that elongation occurs after 70 DEG C, and slide block is pushed open, makes the stem 41 on slide block disconnect and contacting with the electric conductor 1 in bonnet, thereby has disconnected circuit.
After open circuit, marmem no longer includes electric current to be passed through, and its temperature declines, and temperature is during lower than 70 DEG C, and distortion (retraction) occurs to reply marmem, but due to the existence of stuck point, slide block 4 can oneself not slide back to connect circuit.If be that in the vertical direction is installed (being 90 ° with horizontal direction) by the installation of fuse unit, slide block can be because Gravitational sliding, but due to stuck point (salient point) design of chute, slide block can be stuck, to such an extent as to can not slide into chute bottom, and therefore the stem in slide block does not contact with shape memory spring 3 and electric conductor 1, therefore do not form circuit passband, only need, after circuit maintenance normally, artificially to be overcome after the resistance of stuck point by movable slider, just can again connect circuit.The utility model, has well solved after open circuit, and marmem occurs to reply and is out of shape the problem of again connecting circuit, makes its use procedure more safe and reliable.
The utility model NiTiCu marmem, shape memory spring 3 at room temperature drift is 9mm, and diameter is 0.5mm, and described cylindrical spring reaches 35mm reaching length after deformation temperature, and deformation temperature is about 70 DEG C.The electric current that can protect is 6A.
The utility model has solved the disposable shortcoming of traditional insurance silk, can reuse, and also simple in structure, handling safety, easy to use.The utility model can also use it to be with a wide range of applications by deformation temperature and the resistance sizes of adjusting marmem.
The foregoing is only the schematic embodiment of the utility model, not in order to limit scope of the present utility model.For each part of the present utility model can mutually combine under the condition of not conflicting, those skilled in the art, are not departing from equivalent variations and the amendment under design of the present utility model and principle, done, all should belong to the scope of the utility model protection.
Claims (8)
1. one kind has the safeties of spring fuse, the described safeties with spring fuse comprise: shape memory spring (3), the material of described shape memory spring (3) is memorial alloy, it is characterized in that, described shape memory spring (3) is cylindrical spring, described in there is spring fuse safeties also comprise:
The bonnet (2) of being made by insulating material, described bonnet (2) comprising: base, be arranged on the first cylindrical sleeve on described base and run through described base and the connecting hole of described the first cylindrical sleeve;
Electric conductor, is arranged in described base and is arranged in described connecting hole;
Described shape memory spring (3) is set in outside described the first cylindrical sleeve;
Slide block (4), described slide block (4) comprising: the conductive part and the insulation division that connect successively, described conductive part comprises: the stem and the plate-like portion that connect successively, the bore of described stem is less than the internal diameter of described shape memory spring (3), and the bore of described plate-like portion is greater than the external diameter of shape memory spring (3); Described shape memory spring (3) is pushed against in described plate-like portion; Described insulation division comprises: the support portion being connected with described plate-like portion and the insulated dowel extending laterally from described support portion, and described insulated dowel is cylindrical;
Described shape memory spring (3) has the first memory area and the second memory area, and at described the first memory area, described stem is in contact with one another to form with electric conductor and is connected; At described the second memory area, described shape memory spring (3) is extended, and flicks described plate-like portion, and described stem and electric conductor disconnect;
Shell (6), is tubular, and described shell (6) is connected with described base, and described shell (6) holds described the first cylindrical sleeve, described shape memory spring (3), described conductive part and described support portion;
Chute, be arranged on the sidewall of described shell (6), described chute is strip, described chute is provided with stuck point, described chute is divided into both sides by described stuck point, be respectively the first side of stuck point and the second side of stuck point, in described stuck point both sides, the width of described chute is greater than the diameter of described insulated dowel, at described stuck point place, the width of described chute is less than the diameter of described insulated dowel, at described the first memory area, described insulated dowel is positioned at the first side of described stuck point, at described the second memory area, described insulated dowel is positioned at the second side of described stuck point.
2. the safeties with spring fuse as claimed in claim 1, it is characterized in that, described electric conductor comprises: Ka Tai and second sleeve with opening being connected with described Ka Tai, described card decometer is connected on described base, described the second sleeve extend in described connecting hole, described the second sleeve has blind hole along its length, described blind hole comprises: the cylindrical openings connecting successively and the blind end of taper, at described the first memory area, described stem extend in described blind hole and is connected to the blind end place of described taper.
3. the safeties with spring fuse as claimed in claim 1, it is characterized in that, described shape memory spring (3) is horizontally disposed with, the described safeties with spring fuse also comprise: the end the horizontally extending straight line pin that are connected to described shape memory spring (3), the axis of the parallel described shape memory spring of described straight line pin (3), and be supported on described base, and described straight line pin stretches out described base.
4. the safeties with spring fuse as claimed in claim 1, is characterized in that, described plate-like portion and described support portion are identical discoid of diameter.
5. the safeties with spring fuse as claimed in claim 4, it is characterized in that, the number of described insulated dowel is two, and two described insulated dowels are symmetricly set on described support portion, the number of described chute is two, is symmetricly set on described shell.
6. the safeties with spring fuse as claimed in claim 5, is characterized in that, described stuck point is circular arc.
7. the safeties with spring fuse as claimed in claim 2, it is characterized in that, described base comprises: the first round platform and the second round platform that is connected described the first round platform, the external diameter of described the first round platform is greater than the external diameter of described the second round platform, described the first cylindrical sleeve is connected with described the second round platform, and the external diameter of described the first cylindrical sleeve is less than described the second round platform, described shell (6) is cylindrical shape, the internal diameter of described shell equals the external diameter of described the second round platform, and the external diameter of described shell equals the external diameter of described the first round platform.
8. the safeties with spring fuse as claimed in claim 7, it is characterized in that, described Ka Tai is circular, described connecting hole runs through described the first round platform, the aperture that is positioned at the connecting hole at described the first round platform place equals the external diameter of described Ka Tai, and it is concordant with the outer end of described the first round platform that described card decometer is connected on the outer end of described the first round platform place and described Ka Tai.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420362835.7U CN204011346U (en) | 2014-07-02 | 2014-07-02 | There are the safeties of spring fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420362835.7U CN204011346U (en) | 2014-07-02 | 2014-07-02 | There are the safeties of spring fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204011346U true CN204011346U (en) | 2014-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420362835.7U Expired - Fee Related CN204011346U (en) | 2014-07-02 | 2014-07-02 | There are the safeties of spring fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204011346U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107183786A (en) * | 2017-06-30 | 2017-09-22 | 云南中烟工业有限责任公司 | It is a kind of to push away oily device by what circuit was controlled |
| CN108091528A (en) * | 2017-11-29 | 2018-05-29 | 国网浙江省电力公司丽水供电公司 | A kind of Elastic pusher formula high-tension fuse tube socket |
-
2014
- 2014-07-02 CN CN201420362835.7U patent/CN204011346U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107183786A (en) * | 2017-06-30 | 2017-09-22 | 云南中烟工业有限责任公司 | It is a kind of to push away oily device by what circuit was controlled |
| CN107183786B (en) * | 2017-06-30 | 2023-08-15 | 云南中烟工业有限责任公司 | Oil pushing device controlled by circuit |
| CN108091528A (en) * | 2017-11-29 | 2018-05-29 | 国网浙江省电力公司丽水供电公司 | A kind of Elastic pusher formula high-tension fuse tube socket |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20141210 Termination date: 20150702 |
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| EXPY | Termination of patent right or utility model |