CN209168843U - A kind of varistor of extremely low residual voltage - Google Patents
A kind of varistor of extremely low residual voltage Download PDFInfo
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- CN209168843U CN209168843U CN201821456834.3U CN201821456834U CN209168843U CN 209168843 U CN209168843 U CN 209168843U CN 201821456834 U CN201821456834 U CN 201821456834U CN 209168843 U CN209168843 U CN 209168843U
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- varistor
- discharge tube
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- voltage
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Abstract
The utility model discloses a kind of varistors of extremely low residual voltage, including varistor ontology, it is connected with varistor on varistor and draws section, varistor connects solid state discharge tube or internal setting solid discharge tube chip, varistor and solid state discharge tube are reliably connected by scolding tin and are connected, solid discharge tube chip is connect with the voltage dependent resistor chip in varistor by connecting line, solid discharge tube chip is connect with voltage dependent resistor chip horizontal connection or vertically stacked, the residual voltage that the utility model varistor is generated when being subjected to surge impact is compared with varistor used at present and is substantially reduced；Degradation speed of the varistor after being subjected to surge impact is compared with varistor used at present to be significantly slowed.
Description
Technical field
The utility model relates to a kind of varistor, in particular to a kind of varistor of extremely low residual voltage.
Background technique
Varistor is a kind of voltage sensitive devices, is equivalent to open circuit under normal condition, when there is overvoltage, pressure-sensitive electricity
Resistance conducting, internal resistance decline are routed to the earth to overcurrent offer, thus other electronic components of effective protection rear class.
On the one hand currently used varistor residual voltage is higher, and rear class electronic component still can be made because of pressure-resistant not enough damage
It is bad, just need to do two-stage protection in this case, second level protective device reduces residual voltage, and this adds increased the difficulty of circuit design
And cost, while being also a kind of challenge to PCB fabric swatch and volume size；
On the other hand currently used varistor is subjected to multiple surge impact and is easy deterioration, this will lead to varistor
Voltage of being failure to actuate is lower than power input voltage, so that varistor is burnt, this is extremely hazardous situation, to avoid this kind of situation
Occur, can generally select the higher product of breakdown voltage, and to will lead to residual voltage further up for this way.
To sum up, reducing varistor residual voltage, extending the service life of varistor is that current varistor is urgently to be resolved
Problem.
Utility model content
The purpose of this utility model is to provide a kind of varistors of extremely low residual voltage.
The technical solution adopted in the utility model is:
A kind of varistor of extremely low residual voltage, including varistor ontology, it is characterised in that: connected on the varistor
There is varistor to draw section, the varistor connection solid state discharge tube or internal setting solid discharge tube chip, it is described pressure-sensitive
Resistance and solid state discharge tube are reliably connected by scolding tin and are connected, the pressure-sensitive electricity in the solid discharge tube chip and varistor
Chip is hindered to connect by connecting line.
The solid discharge tube chip is connect with voltage dependent resistor chip horizontal connection or vertically stacked.
The advantages of the utility model: the residual voltage and pressure-sensitive electricity used at present that varistor is generated when being subjected to surge impact
Resistance is compared and is substantially reduced；Degradation speed of the varistor after being subjected to surge impact is compared significantly with varistor used at present
Slow down.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the solid state discharge tube series connection varistor form top view of the utility model；
Fig. 2 connect internal view with solid state discharge tube chip level for the utility model voltage dependent resistor chip；
Fig. 3 is the utility model voltage dependent resistor chip and the stacked connection internal view of solid state discharge tube Chip Vertical.
Wherein: 1, scolding tin is reliably connected a little；2, varistor；3, solid state discharge tube；4, varistor draws section；5, pressure-sensitive
Resistance chip；6, solid discharge tube chip；7, connecting line；8, internal lead-out wire.
Specific embodiment
As shown in Figure 1-3, a kind of varistor of extremely low residual voltage, including varistor ontology, it is connected on varistor 2
Varistor draws section 4, and varistor 2 connects solid state discharge tube 3 or internal setting solid discharge tube chip 6, varistor 2 with
Solid state discharge tube 3 is reliably connected a little 1 series connection by scolding tin, the voltage dependent resistor chip in solid discharge tube chip 6 and varistor 2
5 are connected by connecting line 7, and solid discharge tube chip 6 is connect with 5 horizontal connection of voltage dependent resistor chip or vertically stacked.
The utility model varistor (MOV) 2 and solid state discharge tube (TSS) 3 by scolding tin be reliably connected a little 1 connect when,
Pin is directly reliably connected by scolding tin, and TSS voltage type selecting range includes 8V ~ 880V, and TSS type selecting includes that patch (includes but not
It is limited to SMA, SMB) and plug-in unit (including but not limited to CELL, DO series) encapsulation；MOV voltage type selecting range is 18V ~ 1800V,
MOV type selecting includes that patch and plug-in unit encapsulate, and size includes patch 0402-4032；Plug-in unit 05D-53D；
Solid discharge tube chip 6 is set inside the utility model varistor (MOV) and passes through company with voltage dependent resistor chip 5
When wiring 7 connects, unitary packed, chip type of attachment has horizontal connection and vertical pile, and chip chamber passes through lead or weldering
Piece is directly reliably connected, but is not limited to both connection types, and TSS type selecting voltage range is 8V ~ 880V, MOV type selecting voltage model
It encloses for 18V ~ 1800V.
The residual voltage that the utility model varistor is generated when being subjected to surge impact is compared with varistor used at present
It is substantially reduced；Degradation speed of the varistor after being subjected to surge impact is compared with varistor used at present to be significantly slowed.
Claims (1)
1. a kind of varistor of extremely low residual voltage, including varistor ontology, it is characterised in that: be connected on the varistor
Varistor draws section, the varistor connection solid state discharge tube or internal setting solid discharge tube chip, the pressure-sensitive electricity
Resistance is reliably connected by scolding tin with solid state discharge tube and is connected, the varistor in the solid discharge tube chip and varistor
Chip is connected by connecting line, and the solid discharge tube chip is connect with voltage dependent resistor chip horizontal connection or vertically stacked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821456834.3U CN209168843U (en) | 2018-09-06 | 2018-09-06 | A kind of varistor of extremely low residual voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821456834.3U CN209168843U (en) | 2018-09-06 | 2018-09-06 | A kind of varistor of extremely low residual voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209168843U true CN209168843U (en) | 2019-07-26 |
Family
ID=67330869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821456834.3U Active CN209168843U (en) | 2018-09-06 | 2018-09-06 | A kind of varistor of extremely low residual voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209168843U (en) |
-
2018
- 2018-09-06 CN CN201821456834.3U patent/CN209168843U/en active Active
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