CN209642317U - A kind of pcb board load formula surge protector - Google Patents
A kind of pcb board load formula surge protector Download PDFInfo
- Publication number
- CN209642317U CN209642317U CN201920629494.8U CN201920629494U CN209642317U CN 209642317 U CN209642317 U CN 209642317U CN 201920629494 U CN201920629494 U CN 201920629494U CN 209642317 U CN209642317 U CN 209642317U
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- China
- Prior art keywords
- lock pin
- varistor
- gas
- pressure sensitive
- interior lock
- Prior art date
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Abstract
The utility model discloses a kind of pcb boards to carry formula surge protector, including shell, interior lock pin, varistor, gas-discharge tube, pressure sensitive electrodes, gas discharge electrode, releasing structure and limit switch；The interior lock pin is set in the housing side, the varistor and gas-discharge tube glue be enclosed in interior lock pin glue is intracavitary and varistor and gas-discharge tube are connected in series, the gentle discharge electrode of pressure sensitive electrodes is separately mounted to the two sides of interior lock pin, the pressure sensitive electrodes are connect at the interior lock pin back side with varistor, the gas discharge electrode is connect in interior cylindrical surface with gas-discharge tube, the limit switch is set to the back side of interior lock pin, the releasing structure is set to the interior lock pin back side, releasing structure includes indicator and spring, indicator upper end is connect using spring with pressure sensitive electrodes, lower end and limit switch cooperate, the releasing structure is used in varistor deterioration adstante febre tripping protection while exporting the switching value of variation.That the utility model is solved the problems, such as is poor using monolithic piezoresistive wafer through-current capacity, easily burns, and eliminates the secondary damage of electronic equipment.
Description
Technical field
The utility model relates to surge protector fields, and more specifically, in particular to a kind of pcb board carries formula surge protection
Device.
Background technique
Surge protector is a kind of common low-voltage variation device, and under normal circumstances, it is in high impedance status, and one
Denier route because lightning stroke or other reasons there is surge when, it can be connected in a very short period of time, and lightning current or overvoltage are passed through
Ground line introduces the earth, and the equipment on protection circuit is carried out with this.Surge protector is provided with tie-in line terminal and ground terminal, connects
The firewire or the zero curve in power grid for entering line termination power grid；It is grounded termination protective wire or ground wire.
Currently, existing PCB circuit board protection is protected using an individual chip varistor, chip varistor is direct
It is welded in PCB circuit board, protection mechanism of not threading off, the semiconducting behavior when varistor is deteriorated by multiple lightning stroke
Decline, the design of tripping mechanism does not make varistor probably burn explosion, to carry out to PCB circuit board secondary
Damage.
Utility model content
The purpose of this utility model is to provide a kind of pcb boards for possessing tripping design to carry formula surge protector, works as lightning protection
Element line disconnection while can provide alarm when deteriorating.
In order to achieve the above object, the technical solution adopted in the utility model is as follows:
A kind of pcb board carries formula surge protector, including shell, interior lock pin, varistor, gas-discharge tube, pressure sensitive electrodes,
Gas discharge electrode, releasing structure and limit switch；The interior lock pin is set in the housing side, the varistor and gas-discharge tube glue
Be enclosed in interior lock pin glue is intracavitary and varistor and gas-discharge tube are connected in series, the gentle discharge electrode of pressure sensitive electrodes is pacified respectively
Mounted in the two sides of interior lock pin, the pressure sensitive electrodes are connect at the interior lock pin back side with varistor, and the gas discharge electrode is in interior lock pin
Side is connect with gas-discharge tube, and the limit switch is set to the back side of interior lock pin, and the releasing structure is set to the interior lock pin back side,
Releasing structure includes indicator and spring, and indicator upper end is connect using spring with pressure sensitive electrodes, and lower end is mutual with limit switch
Cooperation, the releasing structure are used in varistor deterioration adstante febre tripping protection while exporting the switching value of variation.
Further, the releasing structure includes indicator and spring, and the indicator is mounted on the back side of interior lock pin, institute
Indicator tool is stated there are three stabilizer blade, first stabilizer blade of the indicator is connect by spring with pressure sensitive electrodes, the indicator
Second stabilizer blade contradict and the third stabilizer blade setting corresponding with limit switch of indicator on pressure sensitive electrodes.
Further, the gas-discharge tube using welding by the way of be fixed on varistor, and gas-discharge tube and
Plastic insulation film is additionally provided between varistor.
Further, the pressure sensitive electrodes and varistor use eutectic welding soldering to be connected to one.
Further, the pressure sensitive electrodes, gas discharge electrode are for being welded on a PCB circuit board.
Further, the limit switch has normally opened, normally closed and public three nodes.
Compared with the prior art, the advantages of the utility model are: the utility model, which passes through, increases releasing structure, pressure-sensitive
Triggering limit switch movement, it is through-flow using monolithic piezoresistive wafer to solve original on-board lightning protection when resistance reduction fever tripping
Poor, easy the problem of burning is measured, the secondary damage to electronic equipment is eliminated.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is that the utility model pcb board carries the perspective view of formula surge protector installation on circuit boards.
Fig. 2 is that the utility model pcb board carries formula surge protector and removes the perspective view installed after shell on circuit boards.
Fig. 3 is the main view that the utility model pcb board carries formula surge protector.
Fig. 4 is the rearview that the utility model pcb board carries formula surge protector.
Description of symbols: 1, shell, 2, interior lock pin, 3, varistor, 4, gas-discharge tube, 5, pressure sensitive electrodes, 6, gas
Discharge electrode, 7, indicator, 8, spring, 9, limit switch, 10, PCB circuit board.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.
Refering to fig. 1 shown in-Fig. 4, the utility model provides a kind of pcb board load formula surge protector, including shell 1, interpolation
Core 2, varistor 3, gas-discharge tube 4, pressure sensitive electrodes 5, gas discharge electrode 6, indicator 7, spring 8 and limit switch 9.
The interior lock pin 2 is set to 1 inside of shell, and the varistor 3 and 4 glue of gas-discharge tube are enclosed in the glue of interior lock pin 2
Intracavitary and varistor 3 and gas-discharge tube 4 are connected in series, and the gentle discharge electrode 6 of the pressure sensitive electrodes 5 is separately mounted to interior lock pin
2 two sides, the pressure sensitive electrodes 5 are connect at interior 2 back side of lock pin with varistor 3, and the gas discharge electrode 6 is in interior 2 side of lock pin
It being connect with gas-discharge tube 4, the limit switch 9 is set to the back side of interior lock pin 2, and the releasing structure is set to interior 2 back side of lock pin,
Releasing structure includes indicator 7 and spring 8, and indicator upper end is connect using spring 8 with pressure sensitive electrodes 5, lower end and limit switch 9
It cooperates, which is used to deteriorate adstante febre tripping protection in varistor 3 while exporting the switching value of variation.
When the limit switch 9 has normally opened, normally closed and public three nodes, the i.e. deterioration of varistor 3 fever tripping
Limit switch 9 is triggered from normally closed to normally opened, limit switch 9, which can weld, to be acquired in PCB circuit board 10 by client.
The releasing structure includes indicator 7 and spring 8, and indicator 7 is mounted on the cylindrical projection at interior 2 back side of lock pin
Place is rotated by the center of circle of cylinder.Indicator 7 has 3 fulcrums, and upper end is connected using spring with pressure sensitive electrodes 5, and right end frame is pressure-sensitive
In the trip point of electrode 5, lower end is pressed on the elastic slice of limit switch 9.
The gas-discharge tube 4 is fixed on varistor 3 by the way of welding, and gas-discharge tube 4 and pressure-sensitive
Plastic insulation film is additionally provided between resistance 3.
The pressure sensitive electrodes 5 and varistor 3 use eutectic welding soldering to be connected to one.
The pressure sensitive electrodes 5, gas discharge electrode 6 are for being welded on a PCB circuit board 10.
The working principle of the utility model are as follows: when varistor 3 deteriorates adstante febre, the weldering that fusing is welded with pressure sensitive electrodes 5
Tin, at this time under the contraction of 8 elastic force of spring, 2 cylindrical projection of lock pin is center of circle rotation within indicator 7, by the de- of pressure sensitive electrodes 5
Button point is pushed to generate heat with 3 separation cut fault current of varistor stopping varistor 3, while lower sustainer moves up release and compresses
Limit switch 9 elastic slice make output switching value switching.
The utility model is by increasing releasing structure, the triggering limit switch movement when varistor deteriorates fever tripping,
It solves the problems, such as that original on-board lightning protection is poor using monolithic piezoresistive wafer through-current capacity, easily burn, eliminate lightning-protection module to electricity
The secondary damage of sub- equipment.
Although being described in conjunction with the accompanying the embodiments of the present invention, patent owner can want in appended right
Various deformations or amendments are made within the scope of asking, as long as the claim for being no more than the utility model is described to protect model
It encloses, should all be within the protection scope of the utility model.
Claims (6)
1. a kind of pcb board carries formula surge protector, it is characterised in that: including shell, interior lock pin, varistor, gas-discharge tube,
Pressure sensitive electrodes, gas discharge electrode, releasing structure and limit switch；The interior lock pin is set in the housing side, and the varistor is gentle
Body discharge tube glue be enclosed in interior lock pin glue is intracavitary and varistor and gas-discharge tube are connected in series, the pressure sensitive electrodes are gentle to be put
Electrode is separately mounted to the two sides of interior lock pin, and the pressure sensitive electrodes are connect at the interior lock pin back side with varistor, the gas electric discharge
Pole is connect in interior cylindrical surface with gas-discharge tube, and the limit switch is set to the back side of interior lock pin, and the releasing structure is set to
The interior lock pin back side, releasing structure include indicator and spring, and indicator upper end is connect using spring with pressure sensitive electrodes, lower end and limit
Bit switch cooperates, which is used in varistor deterioration adstante febre tripping protection while exporting the switch of variation
Amount.
2. pcb board according to claim 1 carries formula surge protector, it is characterised in that: the releasing structure includes instruction
Part and spring, the indicator are mounted on the back side of interior lock pin, and the indicator tool is there are three stabilizer blade, and the first of the indicator
A stabilizer blade is connect by spring with pressure sensitive electrodes, and second stabilizer blade of the indicator contradicts on pressure sensitive electrodes, and indicator
The setting corresponding with limit switch of third stabilizer blade.
3. pcb board according to claim 1 carries formula surge protector, it is characterised in that: the gas-discharge tube is using weldering
The mode connect is fixed on varistor, and plastic insulation film is additionally provided between gas-discharge tube and varistor.
4. pcb board according to claim 1 carries formula surge protector, it is characterised in that: the pressure sensitive electrodes and pressure-sensitive electricity
Resistance is connected to one using eutectic welding soldering.
5. pcb board according to claim 1 carries formula surge protector, it is characterised in that: the pressure sensitive electrodes, gas discharge electrode
For being welded on a PCB circuit board.
6. pcb board according to claim 1 carries formula surge protector, it is characterised in that: the limit switch have it is normally opened,
Normally closed and public three nodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920629494.8U CN209642317U (en) | 2019-05-05 | 2019-05-05 | A kind of pcb board load formula surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920629494.8U CN209642317U (en) | 2019-05-05 | 2019-05-05 | A kind of pcb board load formula surge protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209642317U true CN209642317U (en) | 2019-11-15 |
Family
ID=68498202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920629494.8U Active CN209642317U (en) | 2019-05-05 | 2019-05-05 | A kind of pcb board load formula surge protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209642317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112688290A (en) * | 2020-12-29 | 2021-04-20 | 上海闪替电子科技有限公司 | Transient overvoltage protection device of LED street lamp driving power supply |
-
2019
- 2019-05-05 CN CN201920629494.8U patent/CN209642317U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112688290A (en) * | 2020-12-29 | 2021-04-20 | 上海闪替电子科技有限公司 | Transient overvoltage protection device of LED street lamp driving power supply |
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