CN210575810U - Small-size fuse - Google Patents
Small-size fuse Download PDFInfo
- Publication number
- CN210575810U CN210575810U CN201921951544.0U CN201921951544U CN210575810U CN 210575810 U CN210575810 U CN 210575810U CN 201921951544 U CN201921951544 U CN 201921951544U CN 210575810 U CN210575810 U CN 210575810U
- Authority
- CN
- China
- Prior art keywords
- fuse
- indicator
- cover
- enclosing cover
- piece
- 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.)
- Active
Links
Images
Landscapes
- Fuses (AREA)
Abstract
The utility model discloses a small-size fuse relates to the technical field of fuse, and its technical scheme main points are including fusion tube and fuse piece, the both ends of fusion tube all are provided with inner cup and enclosing cover, the both ends of fuse piece are located respectively between two sets of inner cups and enclosing cover, and one of them is covered outward and is provided with the indicator, still is greater than the signal silk of fuse piece including the resistance value, the one end and a set of inner cup and the enclosing cover of signal silk are connected, the other end and the indicator of signal silk are connected and are connected with another group's inner cup and enclosing cover, the utility model discloses the effect of protection indicator has.
Description
Technical Field
The utility model relates to a technical field of fuse, more specifically say, it relates to a small-size fuse.
Background
The fuse is a protective electric appliance, and the fuse automatically breaks a circuit in a mode that a melt is fused by overload current or short-circuit current, so that the fuse plays a role in protecting an electric system.
In the prior art, a chinese patent document with an authorization publication number of CN203165833U discloses a novel spiral fuse, which comprises a fuse tube and a fuse piece, wherein the fuse tube is provided with a first conductive cap and a second conductive cap, the first conductive cap is provided with an insulating sleeve, a fuse indicator is arranged on the outer surface of a contact part, a spring is arranged between the fuse indicator and the contact part, and the fuse indicator is in contact with the insulating sleeve. The fusing indicator is communicated with the circuit through the fuse piece and the first conductive cap, and when the fuse piece is fused, the fusing indicator is extinguished to prompt a user.
However, the indicator is directly connected with the fuse link, so that the indicator is in an operating state when the fuse is in normal use, and the service life of the indicator is influenced due to the characteristic that the temperature of the fuse link is increased when the fuse link is electrified, and the improvement is still needed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a small fuse, which has the effect of protecting the indicator.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a small-size fuse, including fusion tube and fuse piece, the both ends of fusion tube all are provided with inner cup and enclosing cover, the both ends of fuse piece are located respectively between two sets of inner cups and enclosing covers, and one of them is covered outward and is provided with the indicator, still including the signal silk that resistance value is greater than the fuse piece, the one end and a set of inner cup and the enclosing cover of signal silk are connected, the other end and the indicator of signal silk are connected and are connected with another group inner cup and enclosing cover.
By adopting the technical scheme, because the resistance of the signal wire is greater than that of the fuse piece, under the normal condition, the current flows through the fuse piece, the signal wire basically does not generate heat, the temperature rise of the signal wire is small, the influence on the indicator is small, and the service life of the indicator is ensured. Only when the signal silk fusing, the fuse is the fusing state promptly, and the signal silk just can be blown fast, and the indicator moves, and the indicator on the indicator pops out and instructs personnel.
The utility model discloses further set up to: one of the outer covers is formed with a recess, and the indicator is arranged in the recess.
Through adopting above-mentioned technical scheme, the depressed part plays the effect of depositing the indicator, and it needs to mention, indicator is after the installation is fixed, and the indicator is located the depressed part completely, avoids the instruction portion to be collided by the foreign object, has the effect of protection instruction portion.
The utility model discloses further set up to: the concave part is gradually close to the axial lead of the melting tube along the direction close to the central point of the melting tube.
Through adopting above-mentioned technical scheme, play easy to assemble's effect.
The utility model discloses further set up to: protruding pieces are integrally formed at two ends of the fuse piece and are positioned between the inner cover and the outer cover.
Through adopting above-mentioned technical scheme, as long as through compressing tightly inner cup and enclosing cover, alright fix the protruding piece between inner cup and enclosing cover, directly realize protruding piece's fixed when covering including with the enclosing cover dress, have easy to assemble's effect.
The utility model discloses further set up to: and one end of the signal wire, which is far away from the indicator, is bent and positioned between the inner cover and the outer cover.
Through adopting above-mentioned technical scheme, as long as through compressing tightly inner cup and enclosing cover, alright fix the one end of signal silk between inner cup and enclosing cover, directly realize the fixed of signal silk one end when covering including with the enclosing cover dress, have easy to assemble's effect.
The utility model discloses further set up to: one bent end of the signal wire and the lug boss are arranged in the outer cover in a 180-degree reverse direction.
By adopting the technical scheme, the signal wire and the fuse link are separated as much as possible, and the two interference situations are avoided.
To sum up, the utility model discloses being equivalent to establish ties a resistance on the fuse and being greater than the fuse of fuse, then being connected the indicator with the fuse electricity, normal during operation at the fuse, the fuse temperature rise on the fuse is low, and the indicator temperature rise is low, plays the effect of protection indicator, improves the life of indicator.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the partial structure of the present invention with two covers hidden;
fig. 3 is a schematic view of the local structure of the present invention after two outer covers and the fusion tube are hidden.
Reference numerals: 1. a fusion tube; 2. an inner cover; 3. an outer cover; 4. fusing the sheets; 5. a raised piece; 6. a recessed portion; 7. an indicator; 8. and a signal wire.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The embodiment discloses a small fuse, as shown in fig. 1 and 2, including a fusion tube 1, both ends of the fusion tube 1 are provided with an inner cover 2 and an outer cover 3, the inner cover 2 is firstly installed on the fusion tube 1, and then the outer cover 3 is installed on the inner cover 2. Wherein the outside of the fusion tube 1 is made of insulating material, and the inner cover 2 and the outer cover 3 are made of conductive material.
As shown in fig. 1 and 2, a fuse piece 4 is arranged in a fuse tube 1, two ends on the fuse piece 4 are integrally formed into a protruding piece 5, the two protruding pieces 5 are respectively positioned between two inner covers 2 and an outer cover 3, and the protruding pieces 5 can be fixed between the inner covers 2 and the outer cover 3 by compressing the inner covers 2 and the outer cover 3, so that the fixing of the protruding pieces 5 can be directly realized when the outer cover 3 is arranged on the inner cover 2, and the fuse tube has the effect of convenient installation.
As shown in fig. 1, a concave portion 6 is formed on one of the outer covers 3, and the concave portion 6 gradually approaches to the axial line of the melting tube 1 along a direction approaching to the central point of the melting tube 1. The indicator 7 is arranged in the concave part 6, and it should be mentioned that after the indicator 7 is installed and fixed, the indicator 7 is completely positioned in the concave part 6, so that the indicator is prevented from being collided by a foreign object, and the effect of protecting the indicator is achieved.
As shown in fig. 1 and 3, a signal wire 8 with a resistance value larger than that of the fuse piece 4 is further arranged in the fuse tube 1, one end of the signal wire 8 is connected with one group of the inner cover 2 and the outer cover 3, one end of the signal wire 8 is connected with the indicator 7 and is electrically connected with the other group of the inner cover 2 and the outer cover 3, so that the fuse piece 4 and the signal wire 8 are connected in parallel, and the signal wire 8 and the indicator 7 are connected in series.
As shown in fig. 1 and 3, one end of the signal wire 8 far from the indicator 7 is bent and positioned between the inner cover 2 and the outer cover 3 far from the indicator 7, and as long as the inner cover 2 and the outer cover 3 are pressed, one end of the signal wire 8 can be fixed between the inner cover 2 and the outer cover 3, and when the outer cover 3 is mounted on the inner cover 2, the fixation of one end of the signal wire 8 is directly realized, so that the installation is convenient.
As shown in fig. 3, the bent end of the signal wire 8 and the protruding piece 5 are arranged in the outer cover 3 in 180-degree reverse direction, and in the same fusion tube 1, the distance between the signal wire 8 and the fusion piece 4 is increased as much as possible, so that the occurrence of interference in the two cases is avoided.
The concrete working condition effects are as follows:
when the fuse works normally, because the resistance of the signal wire 8 is greater than that of the fuse piece 4, most of current flows through the fuse piece 4, the signal wire 8 basically does not generate heat, the temperature rise of the signal wire 8 is small, the influence on the indicator 7 is small, and the service life of the indicator 7 is ensured. Only when signal silk 8 fusing, the fuse is the fusing state promptly, and the electric current is whole to be passed through signal silk 8, and signal silk 8 just can fuse fast, and indicator 7 acts, and the indicator on the indicator 7 pops out and instructs the personnel.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. The utility model provides a small-size fuse, including fusion tube (1) and fuse piece (4), the both ends of fusion tube (1) all are provided with inner cup (2) and enclosing cover (3), the both ends of fuse piece (4) are located respectively between two sets of inner cups (2) and enclosing cover (3), are provided with indicator (7), characterized by on one of them enclosing cover (3): still including signal silk (8) that resistance value is greater than fuse piece (4), the one end and a set of inner cup (2) and enclosing cover (3) of signal silk (8) are connected, the other end and the indicator (7) of signal silk (8) are connected and are connected with another set of inner cup (2) and enclosing cover (3).
2. The miniature fuse of claim 1, wherein: a concave part (6) is formed on one outer cover (3), and an indicator (7) is arranged in the concave part (6).
3. A miniature fuse as set forth in claim 2, wherein: the sunken part (6) is gradually close to the axial lead of the melting tube (1) along the direction close to the central point of the melting tube (1).
4. A miniature fuse as set forth in claim 2, wherein: protruding pieces (5) are integrally formed at two ends of the fuse piece (4), and the protruding pieces (5) are located between the inner cover (2) and the outer cover (3).
5. The miniature fuse of claim 4, wherein: one end of the signal wire (8) far away from the indicator (7) is bent and positioned between the inner cover (2) and the outer cover (3).
6. The miniature fuse of claim 5, wherein: one bent end of the signal wire (8) and the lug boss (5) are arranged in the outer cover (3) in a 180-degree reverse direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921951544.0U CN210575810U (en) | 2019-11-12 | 2019-11-12 | Small-size fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921951544.0U CN210575810U (en) | 2019-11-12 | 2019-11-12 | Small-size fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210575810U true CN210575810U (en) | 2020-05-19 |
Family
ID=70660511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921951544.0U Active CN210575810U (en) | 2019-11-12 | 2019-11-12 | Small-size fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210575810U (en) |
-
2019
- 2019-11-12 CN CN201921951544.0U patent/CN210575810U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110085496B (en) | Automatic recovery type electric fuse | |
| CN103620703B (en) | Thermal metal oxide varistor circuit protection device | |
| CN101563819B (en) | Pluggable surge arrester | |
| CN1842228B (en) | Controller and heating wire capable of preventing generation of electromagnetic waves | |
| CN210575810U (en) | Small-size fuse | |
| ES2939155T3 (en) | Fuse cutout with integrated measurement function | |
| CN101847858B (en) | Lightning-protection fuse with reliable alarm and overvoltage surge protection device thereof | |
| CN216928467U (en) | Over-temperature protection fusing resistor for switching power supply | |
| CN108711542A (en) | A kind of arc extinguishing fuse of band open circuit mark | |
| CN2826670Y (en) | Binding type compressor protector | |
| CN211088195U (en) | Current fuse with temperature protection function | |
| KR20070015487A (en) | Electromagnetic waves protecting heating wire | |
| CN209859871U (en) | Thermal protector with double protection functions | |
| CN107248477A (en) | The installation method of Miniature heat protector and its heating wire | |
| CN209312697U (en) | A kind of fuse base improved combination structure | |
| CN208706523U (en) | Heat dissipation type solid-sealed polar pole | |
| KR20130026295A (en) | Cut out switch having lightning arrester | |
| CN208835008U (en) | A kind of round tube fuse-link contact being reserved with wire connection hole | |
| CN220796637U (en) | Double conductive spring with molten core | |
| CN105489455A (en) | Thermal link with double insulators | |
| CN201681780U (en) | Lightening-proof fuse with reliable alarming and surge overvoltage protection device thereof | |
| CN220585174U (en) | Novel contact mechanism and closed fuse | |
| CN220209946U (en) | Shunt, battery distribution box assembly and battery pack | |
| CN213340215U (en) | Small-size plain type temperature controller | |
| CN220652963U (en) | Breaking device and lightning protection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325604 xirentang village, Liushi Town, Leqing City, Wenzhou City, Zhejiang Province Patentee after: Sanshi Electric Appliance Co.,Ltd. Address before: 325604 xirentang village, Liushi Town, Leqing City, Wenzhou City, Zhejiang Province Patentee before: WENZHOU SANSHI ELECTRIC Co.,Ltd. |