CN218976326U - High-low voltage circuit protection device - Google Patents
High-low voltage circuit protection device Download PDFInfo
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- CN218976326U CN218976326U CN202223303409.XU CN202223303409U CN218976326U CN 218976326 U CN218976326 U CN 218976326U CN 202223303409 U CN202223303409 U CN 202223303409U CN 218976326 U CN218976326 U CN 218976326U
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 15
- 230000002093 peripheral effect Effects 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to a high-low voltage circuit protection device which comprises a cylinder body, wherein an adjusting plate, a magnetic block, an electromagnet, a conductive sliding strip and an insulating ejector rod are arranged in the cylinder body, the adjusting plate can move up and down, the insulating ejector rod is connected between the adjusting plate and the magnetic block, the conductive sliding strip is arranged in parallel with the electromagnet, the upper end of the conductive sliding strip is electrically contacted with the periphery of the adjusting plate, the electromagnet is fixed at the bottom of the cylinder body below the magnetic block, and the polarity of the electromagnet and the polarity of the magnetic block are opposite to generate repulsive force to push the adjusting plate to move up so as to separate the conductive sliding strip from the periphery of the adjusting plate. According to the utility model, after the current is introduced into the electromagnet, the repulsive force born by the magnetic block is increased, so that the regulating plate moves upwards under the action of the repulsive force of the magnetic block, and the conductive rod is separated from the conductive sliding strip, thereby effectively protecting the high-low voltage circuit.
Description
Technical Field
The utility model relates to the technical field of circuit protection, in particular to a high-low voltage circuit protection device.
Background
In the use process of the equipment, a high-low voltage protection circuit is generally adopted in order to improve the protection of the supporting circuit of the equipment. Generally, a fuse is used in a circuit, when the voltage of the circuit is larger and the resistance value is unchanged, so that the current flowing through the circuit is increased, after a large current flows through the fuse, the fuse wire of the fuse is fused under the action of the large current, thereby protecting the circuit, but the following defects still exist: when the fuse protects the circuit, the voltage value of the protection voltage is not easy to adjust.
Disclosure of Invention
The utility model aims to solve the technical problems that: in order to overcome the defects in the prior art, the utility model provides a high-low voltage circuit protection device, which is used for effectively solving the problem that the voltage value of the protection voltage is not easy to adjust when the current fuse protects a circuit.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a high low voltage circuit protection device, includes the barrel, the barrel inside be equipped with regulating plate, magnetic path, electro-magnet, electrically conductive draw runner and insulating ejector pin, the regulating plate liftable removes, insulating ejector pin is connected between regulating plate and magnetic path, electrically conductive draw runner and electro-magnet parallel arrangement, electrically conductive draw runner upper end and regulating plate periphery electrical contact, the electro-magnet is fixed in the barrel bottom of magnetic path below, electro-magnet and magnetic path polarity are opposite in order to produce the repulsion force and promote the regulating plate to rise and realize electrically conductive draw runner and regulating plate periphery and break away from the contact.
Specifically, the conducting rods are embedded in the center of the side face of the periphery of the adjusting plate in a symmetrical mode, two conducting sliding strips which are symmetrical in the center are arranged on the periphery of the adjusting plate, and the upper ends of the conducting sliding strips are in electric contact with the corresponding conducting rods.
Further, a sleeve is fixed on the bottom wall in the cylinder body, the magnetic block is arranged in the sleeve in a sliding manner, the upper end of the insulating ejector rod extends out of the sleeve and is fixedly connected with the center of the bottom surface of the adjusting plate, and a spring is arranged between the bottom surface of the magnetic block and the electromagnet.
Furthermore, the inner wall of the cylinder body is provided with a sliding groove in a central symmetry manner, the periphery of the adjusting plate is fixedly provided with a sliding block corresponding to the sliding groove in a central symmetry manner, and the sliding block is in sliding fit with the sliding groove.
For conveniently adjusting the protection voltage, the outer peripheral surface of the cylinder body is provided with an arc-shaped adjusting rod in a fitting mode, two ends of the arc-shaped adjusting rod are fixedly connected with the lower end of the conductive sliding strip, the outer wall of the cylinder body is provided with a communication groove in a central symmetry mode, and two ends of the arc-shaped adjusting rod are in sliding fit with the communication groove.
Further, an adjusting block is fixed on the outer wall of the cylinder body, an adjusting screw is connected with the adjusting block in a threaded mode, and the bottom end of the adjusting screw is rotationally connected with a fixing block fixed on the arc-shaped adjusting rod.
Preferably, a sliding rheostat is arranged on the outer wall of the cylinder body, and the sliding rheostat is connected with the electromagnet in a ferroelectric way so as to change the magnetic force of the electromagnet by adjusting the current flowing through the electromagnet.
The beneficial effects of the utility model are as follows: according to the utility model, after the current is introduced into the electromagnet, the repulsive force born by the magnetic block is increased, so that the regulating plate moves upwards under the action of the repulsive force of the magnetic block, and the conductive rod is separated from the conductive sliding strip, thereby effectively protecting the high-low voltage circuit.
Drawings
The utility model will be further described with reference to the drawings and embodiments.
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural view of the protection component according to the present utility model.
Fig. 3 is a schematic structural view of the regulating plate according to the present utility model.
Fig. 4 is a schematic structural view of the arc-shaped connecting rod according to the present utility model.
In the figure: 1. a cylinder; 2. a protection component; 201. a sleeve; 202. a magnetic block; 203. a spring; 204. an insulating ejector rod; 205. an adjusting plate; 206. a conductive rod; 207. a conductive slider; 208. a chute; 209. a slide block; 210. an electromagnet; 3. an adjustment assembly; 301. a slide rheostat; 302. a communication groove; 303. an arc-shaped connecting rod; 304. an adjusting block; 305. and adjusting the screw.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
The high-low voltage circuit protection device shown in fig. 1 comprises a cylinder 1, a protection component 2 is arranged in the cylinder 1, and an adjusting component 3 is arranged outside the cylinder 1.
As shown in fig. 2 and 3, the protection component 2 is provided with a circular adjusting plate 205, two centrally symmetrical sliding blocks 209 are fixed on the peripheral surface of the adjusting plate 205, two centrally symmetrical sliding grooves 208 are formed on the inner wall of the cylinder 1, and the sliding blocks 208 are in sliding fit with the sliding grooves 209 to realize lifting movement of the adjusting plate 205; two conductive rods 206 with central symmetry are embedded in the side surface of the periphery of the adjusting plate 205, and two sliding blocks 208 and two conductive rods 206 are circumferentially and uniformly distributed at intervals around the periphery of the adjusting plate 205; the periphery of the adjusting plate 205 is provided with two conductive sliding strips 207 corresponding to the conductive rods 206, and the upper end side surface of each conductive sliding strip 207 is attached to the end surface of the corresponding conductive rod 206 to realize electric contact.
A sleeve 201 is fixed on the inner bottom wall of the cylinder body 1, a magnetic block 202 is arranged in the sleeve 201 in a sliding manner, an electromagnet 210 is fixed at the bottom of the cylinder body 1 below the magnetic block 202, the electromagnet 210 and the conductive sliding bar 207 are arranged in parallel, the polarities of the electromagnet 210 and the magnetic block 202 are opposite, and repulsive force generated by the electromagnet 210 and the magnetic block 202 can push an adjusting plate 205 to rise, so that the conductive sliding bar 207 and the conductive bar 206 are separated from contact.
An insulating ejector rod 204 is fixed on the upper end surface of the magnetic block 202, the upper end of the insulating ejector rod 204 extends out of the sleeve 201 and is fixedly connected with the center of the bottom surface of the adjusting plate 205, and a spring 203 capable of resetting the adjusting plate 205 is connected between the bottom surface of the magnetic block 202 and the electromagnet 210.
As shown in fig. 1 and 4, the adjusting assembly 3 includes: the arc-shaped adjusting rod 303 with the central angle of 180 degrees is arranged on the outer peripheral surface of the attaching barrel body 1, the outer wall of the barrel body 1 is provided with a communication groove 302 with central symmetry, the communication groove 302 is positioned below the conductive sliding strip 207, two ends of the arc-shaped adjusting rod 303 are in sliding fit with the communication groove 302, and two ends of the arc-shaped adjusting rod 303 extend into the barrel body 1 to be fixedly connected with the lower end of the conductive sliding strip 207.
An adjusting block 304 is fixed on the outer wall of the cylinder body 1, an adjusting screw 305 is connected with the adjusting block 304 in a threaded mode, and the bottom end of the adjusting screw 305 is rotatably connected with a fixing block fixed on the arc-shaped adjusting rod 303.
A sliding rheostat 301 is mounted on the outer wall of the cylinder 1, and the sliding rheostat 301 is electrically connected with the electromagnet 210 so as to change the magnetic force of the electromagnet 210 by adjusting the current flowing through the electromagnet 210.
Working principle: when the electromagnetic switch is used, the two conductive sliding strips 207 are externally connected with a wire, after the conductive sliding strips 207 and the conductive rod 206 are electrified, current passes through the conductive sliding strips 207 and the conductive rod 206, and as the electromagnet 210 is connected with the conductive sliding strips 207 in parallel, partial current is shunted into the electromagnet 210, when the voltage is overlarge, the current entering the electromagnet 210 is also larger, the repulsive force generated by the electromagnet 210 on the magnetic block 202 is increased, the magnetic block 202 pushes the regulating plate 205 to move upwards, and the conductive rod 206 is separated from the conductive sliding strips 207 to disconnect a circuit, so that the protection effect on the circuit is improved.
When the protection voltage needs to be regulated, the resistance value of the slide rheostat 301 can be regulated at this time, and the magnitude of the current passing through the electromagnet 210 is changed, so that the magnitude of the magnetic force of the electromagnet 210 is changed, the position of the regulating plate 205 is changed, and the purpose of regulating the protection voltage is achieved; meanwhile, the adjusting screw 305 can be rotated to drive the arc adjusting rod 303 to move, so that the contact position of the conductive sliding strip 207 and the conductive rod 206 is changed, the purpose of changing the adjusting protection voltage is achieved, and the protection voltage can be adjusted by the two.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (7)
1. The utility model provides a high low voltage circuit protection device, includes barrel, characterized by: the novel electric iron comprises a cylinder body, and is characterized in that an adjusting plate, a magnetic block, an electromagnet, a conductive sliding strip and an insulating ejector rod are arranged in the cylinder body, the adjusting plate can move in a lifting mode, the insulating ejector rod is connected between the adjusting plate and the magnetic block, the conductive sliding strip is arranged in parallel with the electromagnet, the upper end of the conductive sliding strip is electrically contacted with the periphery of the adjusting plate, the electromagnet is fixed at the bottom of the cylinder body below the magnetic block, and the polarity of the electromagnet is opposite to that of the magnetic block so as to generate repulsive force to push the adjusting plate to lift, so that the conductive sliding strip is separated from the periphery of the adjusting plate.
2. The high-low voltage circuit protection device according to claim 1, wherein: the conductive rods are embedded in the center of the side face of the periphery of the adjusting plate in a symmetrical mode, two conductive sliding strips which are symmetrical in the center are arranged on the periphery of the adjusting plate, and the upper ends of the conductive sliding strips are in electrical contact with the corresponding conductive rods.
3. The high-low voltage circuit protection device according to claim 2, wherein: the bottom wall in the cylinder body on be fixed with the sleeve, the magnetic path slides and establishes in the sleeve, and insulating ejector pin upper end stretches out sleeve and regulating plate bottom surface center rigid coupling, be equipped with the spring between magnetic path bottom surface and the electro-magnet.
4. The high-low voltage circuit protection device according to claim 1, wherein: the cylinder is characterized in that a sliding groove is formed in the inner wall of the cylinder in a central symmetry mode, sliding blocks corresponding to the sliding groove are symmetrically fixed on the periphery face of the adjusting plate in a central symmetry mode, and the sliding blocks are in sliding fit with the sliding groove.
5. The high-low voltage circuit protection device according to claim 1, wherein: the outer peripheral surface of the cylinder body is provided with a liftable arc-shaped adjusting rod in a fitting mode, two ends of the arc-shaped adjusting rod are fixedly connected with the lower end of the conductive sliding strip, the outer wall of the cylinder body is provided with a communication groove in a central symmetry mode, and two ends of the arc-shaped adjusting rod are in sliding fit with the communication groove.
6. The high and low voltage circuit protection device according to claim 5, wherein: the outer wall of the cylinder body is fixedly provided with an adjusting block, the adjusting block is in threaded connection with an adjusting screw, and the bottom end of the adjusting screw is in rotary connection with a fixed block fixed on the arc-shaped adjusting rod.
7. The high-low voltage circuit protection device according to claim 1, wherein: the sliding rheostat is arranged on the outer wall of the cylinder body and is in ferroelectric connection with the electromagnet to change the magnetic force of the electromagnet by adjusting the current flowing through the electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223303409.XU CN218976326U (en) | 2022-12-09 | 2022-12-09 | High-low voltage circuit protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223303409.XU CN218976326U (en) | 2022-12-09 | 2022-12-09 | High-low voltage circuit protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218976326U true CN218976326U (en) | 2023-05-05 |
Family
ID=86148480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223303409.XU Active CN218976326U (en) | 2022-12-09 | 2022-12-09 | High-low voltage circuit protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218976326U (en) |
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2022
- 2022-12-09 CN CN202223303409.XU patent/CN218976326U/en active Active
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