CN210040114U - Microswitch device matched with fuse - Google Patents
Microswitch device matched with fuse Download PDFInfo
- Publication number
- CN210040114U CN210040114U CN201920378490.7U CN201920378490U CN210040114U CN 210040114 U CN210040114 U CN 210040114U CN 201920378490 U CN201920378490 U CN 201920378490U CN 210040114 U CN210040114 U CN 210040114U
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- CN
- China
- Prior art keywords
- transmission rod
- limiting
- microswitch
- fuse
- lower transmission
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- 230000005540 biological transmission Effects 0.000 claims abstract description 58
- 238000009434 installation Methods 0.000 claims description 17
- 238000005192 partition Methods 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000000155 melt Substances 0.000 description 5
- 238000010891 electric arc Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
A microswitch device matched with a fuse comprises a supporting piece, wherein a lower transmission rod capable of moving up and down and an upper transmission rod positioned on the lower transmission rod are arranged on the supporting piece; the upper transmission rod can move upwards under the jacking action of the lower transmission rod and abut against the microswitch button to act. Compared with an alarm device directly arranged on the fuse, the alarm device arranged in the monitoring room is started through the microswitch device to alarm, so that monitoring personnel can monitor the phenomenon of circuit overload fusing in time, timely inform maintenance and avoid larger loss caused by circuit overload.
Description
Technical Field
The utility model relates to a circuit protection of trades such as electric power, electron, new energy automobile especially indicates to be applied to circuit protection's fuse. The utility model particularly relates to a microswitch device that the fuse adapted.
Background
The fuse is a component which melts or mechanically breaks the melt by the heat generated by the fuse after the current exceeds a specified value for a period of time, so that the circuit is broken to protect equipment, instruments and the like in the circuit. The fuse is widely applied to high-low voltage distribution systems, control systems, electric equipment and new energy automobiles, and is one of the most commonly applied protection devices as a short circuit and overcurrent protector. The fuse can be divided into a plug-in fuse and a hook fuse in a mode of connecting a contact knife and a circuit, and also can be divided into a filler fuse, a non-filler fuse and the like according to the existence or nonexistence of filler. The general main structure of the device comprises a shell, a melt arranged in the shell, and a contact knife which is positioned outside the shell and is connected with the melt. When the breaking voltage is high and the electric arc is easy to generate, the shell can be filled with arc extinguishing medium, and when the breaking voltage is low and the electric arc is not easy to generate, the arc extinguishing medium can not be filled. Typically, multiple melts are welded in one fuse.
In the kind of fuse, there is a fuse with fusing indicator, and after the fusing, the indicator then can carry out the fusing warning to in time maintain the circuit. The indicator is directly arranged on the fuse, and when the fuse is used for alarming, the generated electric arc easily passes through the indicator installation channel to cause potential safety hazard.
Disclosure of Invention
The utility model aims to solve the technical problem that a micro-gap switch device for fuse is provided, it can be connected with the indicator warning circuit of customer end through micro-gap switch device, has avoided indicator direct mount on the fuse, has avoided electric arc probably to cause the harm to the indicator.
In order to solve the technical problem, the technical scheme provided by the utility model is a microswitch device for a fuse, which comprises a support piece, wherein the support piece is provided with a lower transmission rod capable of moving up and down and an upper transmission rod positioned on the lower transmission rod; the upper transmission rod can move upwards under the jacking action of the lower transmission rod and abut against the microswitch button to act.
The supporting piece is provided with an installation limiting device; the lower transmission rod penetrates through the installation limiting device; the mounting limiting device comprises an upper limiting clapboard, a middle limiting clapboard and a lower limiting clapboard which are sequentially arranged at intervals from top to bottom; a lower limiting piece is arranged on the lower transmission rod below the lower limiting partition plate, an upper limiting piece is arranged on the lower transmission rod above the middle limiting partition plate, a return spring is sleeved on the lower transmission rod between the upper limiting piece and the upper limiting partition plate, and the upper end and the lower end of the return spring are respectively fixed on the upper limiting partition plate and the upper limiting piece; the upper end of the lower transmission rod penetrates through the upper limiting partition plate and then is located below the upper transmission rod.
The lower end of the upper transmission rod is provided with a bottom plate, and the bottom plate is positioned between the lower transmission rod and the microswitch button; when the lower transmission rod moves upwards, the lower transmission rod can abut against the bottom plate to move upwards and abut against the microswitch button.
A limiting groove is formed between one side of the microswitch and the supporting piece, the rod body of the upper transmission rod is arranged in the limiting groove, and the bottom plate is fixedly arranged at the lower end of the upper transmission rod.
The supporting piece is assembled by a left part and a right part.
The utility model discloses a micro-switch device of fuse adapted is applicable to the warning protection circuit of main circuit. The alarm device of the alarm protection circuit can be arranged in the monitoring room far away from the main circuit, when the fuse of the main circuit is fused, the alarm protection circuit is started through the micro switch device, and the alarm arranged in the monitoring room gives an alarm. Compare in the alarm device who directly sets up on the fuse, alarm through micro-gap switch device start setting in the monitor alarm of being convenient for more in time monitor the phenomenon of circuit overload fusing, in time inform the maintenance, avoid causing bigger loss because circuit overload.
Drawings
Fig. 1 is a front longitudinal sectional structural schematic view of a micro-switching device.
Fig. 2 is a schematic view of the structure of the lower transmission rod.
Fig. 3 is a schematic side view of the upper transmission rod.
Detailed Description
With respect to the above technical solutions, preferred embodiments are described in detail with reference to the drawings. Referring to fig. 1-3, wherein:
the micro-switch device comprises a support piece 1, a limiting installation cavity is arranged on the lower portion of the support piece 1, and a limiting partition plate 11 is horizontally arranged in the limiting installation cavity to divide the limiting installation cavity into an upper cavity and a lower cavity. And the limiting installation cavity and the limiting partition plate are provided with through limiting through holes. The lower transmission rod 2 is of a soil-shaped structure, the body of the lower transmission rod 2 is of a cylindrical structure, an upper limiting piece 21 and a lower limiting piece 22 are respectively arranged in the middle and the lower end of the cylindrical body in a horizontally extending mode towards the periphery, the body of the lower transmission rod 2 is located in a limiting through hole in a limiting installation cavity, the upper limiting piece is located above a limiting partition plate, the lower limiting piece is located below the lower wall of the limiting installation cavity, and the upper end of the lower transmission rod penetrates through the upper wall of the limiting installation cavity and is located above the limiting installation cavity; the lower transmission rod limits the displacement distance of the upper end and the lower end of the lower transmission rod respectively through the lower wall of the limiting partition plate and the limiting installation cavity. The lower transmission rod body in the upper cavity above the limiting partition plate is sleeved with the reset spring 3, the lower end of the reset spring 3 abuts against the upper limiting piece of the lower transmission rod, and the lower end of the reset spring abuts against the lower surface of the upper wall of the limiting installation cavity.
And a holding cavity is arranged on the support piece above the limiting mounting cavity, and a microswitch 4 is placed and mounted in the holding cavity. A gap is reserved between the accommodating cavity and the limiting installation cavity of the microswitch. A gap is also reserved between the accommodating cavity and one side wall of the supporting piece.
The microswitch button 41 of the microswitch 4 protrudes out of the lower wall of the housing chamber. The normally open contact 42, the normally closed contact 43 and the common end contact 44 of the microswitch are respectively positioned outside the accommodating cavity, so that the microswitch can be connected with an external alarm protection circuit. An upper transmission rod 5 is arranged outside the accommodating cavity of the microswitch. The external structure of the upper transmission rod 5 comprises an upper transmission rod body, the lower end of the upper transmission rod body is fixedly connected with a bottom plate 51, and the upper end of the support rod is fixedly connected with a top plate 52. The area of the bottom plate 51 is large. The body of rod of going up transfer chain 5 is located the space department between holding chamber and support piece one side lateral wall, and its roof is located the holding chamber top, and the bottom plate is located the below of holding chamber and micro-gap switch button, is located the top of spacing installation cavity, and the top of lower transfer chain 2 supports to lean on the central point department below the bottom plate. A containing groove is formed in a gap between the containing cavity and one side wall of the supporting piece, and the supporting rod of the upper transmission rod is located in the containing groove to limit the position of the upper transmission rod.
The support piece of the utility model is assembled by a left part and a right part. The device is divided into a left part and a right part, so that the installation of each part is convenient.
The utility model discloses a micro-gap switch device's theory of operation: a microswitch in the microswitch device is connected with an alarm protection circuit, and a lower transmission rod is connected with a fuse. Under the normal operating condition of the circuit, the reset spring is in a tensioning state, and the bottom plate of the upper transmission rod is positioned below the micro-switch button and is separated from the contact with the micro-switch button. When the circuit overload fuse is fused, the binding force of the lower transmission rod disappears, the lower transmission rod jacks up the bottom plate of the upper transmission rod to move upwards under the action of the reset elastic force of the reset spring, the upward moving bottom plate is contacted with the micro switch button and upwards abuts against the micro switch button, and therefore the micro switch is triggered to act, and the alarm protection circuit is started to give an alarm. The alarm device of the alarm protection circuit can be arranged in the monitoring room, and when the alarm protection circuit is started, the alarm arranged in the monitoring room gives an alarm. Compare in the alarm device who directly sets up on the fuse, alarm through micro-gap switch device start setting in the monitor alarm of being convenient for more in time monitor the phenomenon of circuit overload fusing, in time inform the maintenance, avoid causing bigger loss because circuit overload.
Claims (5)
1. A microswitch device matched with a fuse is characterized by comprising a supporting piece, wherein a lower transmission rod capable of moving up and down and an upper transmission rod positioned on the lower transmission rod are arranged on the supporting piece; the upper transmission rod can move upwards under the jacking action of the lower transmission rod and abut against the microswitch button to act.
2. A microswitch apparatus for use in a fuse as in claim 1 wherein a mounting limit means is provided on said support member; the lower transmission rod penetrates through the installation limiting device; the mounting limiting device comprises an upper limiting clapboard, a middle limiting clapboard and a lower limiting clapboard which are sequentially arranged at intervals from top to bottom; a lower limiting piece is arranged on the lower transmission rod below the lower limiting partition plate, an upper limiting piece is arranged on the lower transmission rod above the middle limiting partition plate, a return spring is sleeved on the lower transmission rod between the upper limiting piece and the upper limiting partition plate, and the upper end and the lower end of the return spring are respectively fixed on the upper limiting partition plate and the upper limiting piece; the upper end of the lower transmission rod penetrates through the upper limiting partition plate and then is located below the upper transmission rod.
3. A microswitch device for use in a fuse as in claim 1 wherein a lower end of said upper transfer lever is provided with a base plate, said base plate being positioned between said lower transfer lever and said microswitch button; when the lower transmission rod moves upwards, the lower transmission rod can abut against the bottom plate to move upwards and abut against the microswitch button.
4. A microswitch device for use in a fuse as claimed in claim 3, wherein a limit groove is provided between one side of said microswitch and said support member, a rod body of said upper transmission rod is disposed in said limit groove, and said bottom plate is fixedly mounted on a lower end of said upper transmission rod.
5. A microswitch apparatus for use in a fuse according to any one of claims 1 to 4, wherein the support member is assembled from left and right portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920378490.7U CN210040114U (en) | 2019-03-25 | 2019-03-25 | Microswitch device matched with fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920378490.7U CN210040114U (en) | 2019-03-25 | 2019-03-25 | Microswitch device matched with fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210040114U true CN210040114U (en) | 2020-02-07 |
Family
ID=69356099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920378490.7U Active CN210040114U (en) | 2019-03-25 | 2019-03-25 | Microswitch device matched with fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210040114U (en) |
-
2019
- 2019-03-25 CN CN201920378490.7U patent/CN210040114U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 710075 Zhongrong Electric Industrial Base, No. 97, Jinye Second Road, High tech Zone, Xi'an, Shaanxi Patentee after: XI'AN ZHONGRONG ELECTRIC Co.,Ltd. Address before: Room 3-10303, East District, modern enterprise center, No.12, zone a, pioneer R & D Park, 69 Jinye Road, high tech Zone, Xi'an City, Shaanxi Province, 710077 Patentee before: XI'AN ZHONGRONG ELECTRIC Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder |