CN202796292U - High overflowing and overvoltage preventing protector - Google Patents
High overflowing and overvoltage preventing protector Download PDFInfo
- Publication number
- CN202796292U CN202796292U CN 201220329365 CN201220329365U CN202796292U CN 202796292 U CN202796292 U CN 202796292U CN 201220329365 CN201220329365 CN 201220329365 CN 201220329365 U CN201220329365 U CN 201220329365U CN 202796292 U CN202796292 U CN 202796292U
- Authority
- CN
- China
- Prior art keywords
- flame
- proof
- explosion
- voltage dependent
- dependent resistor
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Casings For Electric Apparatus (AREA)
Abstract
The utility model relates to a high overflowing and overvoltage preventing protector aiming at ensuring that the occupied area of the traditional voltage dependent resistor in a circuit board is less under the condition of unchanged power and size of the traditional voltage dependent resistor and enhancing the flame-retardant anti-explosion property of the traditional flame-retardant anti-explosion voltage dependent resistor. The high overflowing and overvoltage preventing protector comprises a voltage dependent resistor and a flame-retardant anti-explosion shell body arranged outside the voltage dependent resistor. The high overflowing and overvoltage preventing protector is characterized in that the flame-retardant anti-explosion shell body is in a cylindrical structure with a bottom opened; the voltage dependent resistor is arranged along the center line of the cylindrical structure; the pin of the voltage dependent resistor is led out by a bottom surface plug plugged in the bottom surface round opening of the cylindrical shell body; and insulated quartz sand is filled in a gap between the inner wall of the flame-retardant anti-explosion shell body and the outer wall of the voltage dependent resistor. The high overflowing and overvoltage preventing protector disclosed by the utility model can ensure that the occupied area of the voltage dependent resistor in the circuit board is less under the condition of unchanged power and size of the traditional voltage dependent resistor, and can enhance the flame-retardant anti-explosion property of the traditional flame-retardant anti-explosion voltage dependent resistor.
Description
Technical field
The present invention relates to a kind of improvement of piezo-resistance, particularly the outer flame-proof explosion-proof housing of a kind of piezo-resistance.
Background technology
Along with the enhancing of people's awareness of safety, in the now general household electrical appliance piezo-resistance is installed all, as the device of lightning protection, Anti-surging electric current.But, when running into the thunderbolt overtension, surpassed bearing of piezo-resistance and ability, or piezo-resistance ageing failure is easy to occur the problem of piezo-resistance blast on fire.Burn out thus circuit board, damage equipment is heavy then cause fire.For addressing this problem, Chinese patent literature discloses a kind of piezo-resistance flame-proof explosion-proof encapsulating structure, it is provided with the housing of a flame-proof explosion-proof outside existing piezo-resistance, this housing can stop flare to be gone out to a certain extent, make piezo-resistance on fire or exploded thereby both reached in certain degree, can not cause that also other components and parts on the circuit board are on fire.But still can there be potential safety hazard in this set, such as voltage instability regularly, still may make piezo-resistance produce the risk of blast, and finally damage circuit board.The housing of this flame-proof explosion-proof is generally a cube shaped box body simultaneously, and in the in-built piezo-resistance that is equipped with of box body, it occupies larger on circuit board.Along with electronic product is more and more compact, the area of circuit board is more and more less, and this just needs the position of the shared circuit board of piezo-resistance of equal-wattage the smaller the better.
Summary of the invention
The objective of the invention is to be to solve in the situation of existing piezo-resistance power and constancy of volume, it occupies less board area.
Another object of the present invention is to improve the flame-proof explosion-proof performance of existing flame-retardant and explosion-proof voltage dependent resistor.
And a kind of high anti-overflow overvoltage protector that provides.
The technical scheme that the present invention adopts to achieve these goals is: it comprises piezo-resistance and is arranged on the outer flame-proof explosion-proof housing of piezo-resistance, its characteristic is: described flame-proof explosion-proof housing is the cylindrical structural of bottom opening, piezo-resistance arranges along the cylindrical structural center line, and the piezo-resistance pin is drawn by the bottom surface shutoff of the bottom surface circular open that is plugged in cylindrical housings; In the inwall of described flame-proof explosion-proof housing and the space between the piezo-resistance outer wall, be filled with the insulation quartz sand.
Further, the outside of described flame-proof explosion-proof housing is provided with an envelope.
Further, described envelope madial wall and top contact with flame-proof explosion-proof housing outer wall.
Further, described envelope madial wall contacts with flame-proof explosion-proof housing outer wall, and top and flame-proof explosion-proof housing top outer wall are provided with cavity.
Further, be provided with the space between described envelope madial wall and top and the flame-proof explosion-proof housing outer wall.
Further, the bottom surface shutoff of described flame-proof explosion-proof housing is and the sheet material of flame-proof explosion-proof housing with material by clamping or heat-sealing or rubber seal, to realize shutoff bottom the flame-proof explosion-proof housing sidewall.
Further, the bottom surface shutoff of described flame-proof explosion-proof housing is the sealing shutoff.
Further, the end face of described flame-proof explosion-proof housing is provided with the through hole that diameter is not more than the insulation quartz sand.
Adopt the beneficial effect of technique scheme to be:
1, in the situation of existing piezo-resistance power and constancy of volume, this piezo-resistance shared area in circuit board is less.
2, improved the flame-proof explosion-proof performance of existing flame-retardant and explosion-proof voltage dependent resistor.
Description of drawings
Fig. 1 is perspective view of the present invention;
Fig. 2 is the cross-sectional view of flame-proof explosion-proof housing of the present invention when the envelope indoor design;
Cross-sectional view when Fig. 3 is neat mouthful of design of flame-proof explosion-proof housing of the present invention and envelope;
Fig. 4 is flame-proof explosion-proof housing of the present invention and the envelope inner wall section cross-sectional view when being close to;
In the accompanying drawing, the list of parts of each label representative is as follows:
Flame-proof explosion-proof housing 1, envelope 2, quartz sand 3, piezo-resistance 4, pin 5, pin bores 6, through hole 7.
Embodiment
Below in conjunction with accompanying drawing and the preferred specific embodiment of the present invention content of the present invention is further described.Institute gives an actual example and only is used for explaining the present invention, is not be used to limiting scope of the present invention.
As shown in Figure 1, 2; the present invention is a kind of high anti-overflow overvoltage protector; it comprises piezo-resistance 4 and is arranged on piezo-resistance 4 flame-proof explosion-proof housing 1 outward; described flame-proof explosion-proof housing 1 is the cylindrical structural of bottom opening; piezo-resistance 4 arranges along the cylindrical structural center line, and two pins 5 of piezo-resistance 4 are drawn by two pin bores 6 shutoff of the bottom surface of the bottom surface circular open that is plugged in cylindrical housings.
Certainly, in order to improve the flame-proof explosion-proof performance of existing high anti-overflow overvoltage protector, can be filled with in the inwall of described flame-proof explosion-proof housing 1 and the space between piezo-resistance 4 outer walls that powder is not fired in insulation or the fireproof fibre that insulate.Powder is not fired in described insulation can adopt quartz sand 3 analogs such as grade.Described insulation fireproof fibre can be glass fibre or other fireproof fibre etc.
Improve the flame-proof explosion-proof performance of existing high anti-overflow overvoltage protector; another mode of the present invention can be at described flame-proof explosion-proof housing 1; on be provided with through hole 7, through hole 7 can be that circular hole also can be square hole, and the diameter of through hole 7 be not more than the insulation quartz sand diameter.The really blast on fire of piezo-resistance 4 in flame-proof explosion-proof housing 1; cause when the 1 interior voltage rise of flame-proof explosion-proof housing is high; can by through hole 7 with gas discharging to the space between flame-proof explosion-proof housing 1 and the envelope 2; or when flame-proof explosion-proof housing 1 explosion time; because the protection of its outside envelope 2 is arranged, can not cause whole blast, can only make piezo-resistance produce blast in the inside of envelope 2; can not cause the on fire of circuit board, and other components and parts that damage circuit board.In order better to realize this effect, be as shown in Fig. 2,3,4 with the structural design between flame-proof explosion-proof housing 1 and the envelope 2 among the present invention, mainly be the inside that is arranged at envelope 2 with flame-proof explosion-proof housing 1 integral body among Fig. 2, make between the outer wall of the madial wall of envelope 2 and top and flame-proof explosion-proof housing 1 and be provided with the space; Mainly be that flame-proof explosion-proof housing 1 integral body is arranged at envelope 2 inside among Fig. 3, also so that make between the outer wall of the madial wall of envelope 2 and top and flame-proof explosion-proof housing 1 and be provided with the space, but the opening part of the bottom opening place of this flame-proof explosion-proof housing 1 and envelope 2 is arranged at the same plane place simultaneously; Among Fig. 4 mainly be with flame-proof explosion-proof housing 1 integral body be arranged at envelope 2 inside, the madial wall of envelope 2 is contacted with the outer wall of flame-proof explosion-proof housing 1, the top outer wall of top and flame-proof explosion-proof housing 1 is provided with cavity.
For the ease of producing, the bottom surface shutoff of described flame-proof explosion-proof housing 1 can be the sheet material with flame-proof explosion-proof housing 1 equivalent material, can block up by the snap fit clamping of dop and buckle or by the form shutoff of high temperature heat-sealing or the rubber seal of use insulating property (properties) with flame-proof explosion-proof housing 1 sidewall bottom.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. one kind high anti-overflow overvoltage protector, it comprises piezo-resistance (4) and is arranged on the outer flame-proof explosion-proof housing (1) of piezo-resistance (4), its characteristic is: described flame-proof explosion-proof housing (1) is the cylindrical structural of bottom opening, piezo-resistance (4) arranges along the cylindrical structural center line, and piezo-resistance (4) pin (5) is drawn by the bottom surface shutoff of the bottom surface circular open that is plugged in cylindrical housings; In the inwall of described flame-proof explosion-proof housing (1) and the space between piezo-resistance (4) outer wall, be filled with insulation quartz sand (3).
2. high anti-overflow overvoltage protector according to claim 1, it is characterized in that: the outside of described flame-proof explosion-proof housing (1) is provided with an envelope (2).
3. high anti-overflow overvoltage protector according to claim 2, it is characterized in that: described envelope (2) madial wall and top contact with flame-proof explosion-proof housing (1) outer wall.
4. high anti-overflow overvoltage protector according to claim 2, it is characterized in that: described envelope (2) madial wall contacts with flame-proof explosion-proof housing (1) outer wall, and top and flame-proof explosion-proof housing (1) top outer wall are provided with cavity.
5. high anti-overflow overvoltage protector according to claim 2 is characterized in that: be provided with the space between described envelope (2) madial wall and top and flame-proof explosion-proof housing (1) outer wall.
6. high anti-overflow overvoltage protector according to claim 1 and 2; it is characterized in that: the bottom surface shutoff of described flame-proof explosion-proof housing (1) is and the sheet material of flame-proof explosion-proof housing (1) with material; bottom flame-proof explosion-proof housing (1) sidewall, by clamping or heat-sealing or rubber seal, realize shutoff.
7. high anti-overflow overvoltage protector according to claim 1 and 2, it is characterized in that: the bottom surface shutoff of described flame-proof explosion-proof housing (1) is the sealing shutoff.
8. it is characterized in that according to claim 4 or 5 described high anti-overflow overvoltage protectors: the end face of described flame-proof explosion-proof housing (1) is provided with the through hole (7) that diameter is not more than the insulation quartz sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220329365 CN202796292U (en) | 2012-07-09 | 2012-07-09 | High overflowing and overvoltage preventing protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220329365 CN202796292U (en) | 2012-07-09 | 2012-07-09 | High overflowing and overvoltage preventing protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202796292U true CN202796292U (en) | 2013-03-13 |
Family
ID=47823504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220329365 Expired - Lifetime CN202796292U (en) | 2012-07-09 | 2012-07-09 | High overflowing and overvoltage preventing protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202796292U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709013A (en) * | 2012-07-09 | 2012-10-03 | 深圳市辰驹电子科技有限公司 | High overcurrent and overvoltage protector |
| CN103730221A (en) * | 2013-12-26 | 2014-04-16 | 广西新未来信息产业股份有限公司 | Super capacitance/voltage-sensing resistor |
-
2012
- 2012-07-09 CN CN 201220329365 patent/CN202796292U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709013A (en) * | 2012-07-09 | 2012-10-03 | 深圳市辰驹电子科技有限公司 | High overcurrent and overvoltage protector |
| CN103730221A (en) * | 2013-12-26 | 2014-04-16 | 广西新未来信息产业股份有限公司 | Super capacitance/voltage-sensing resistor |
| CN103730221B (en) * | 2013-12-26 | 2016-08-24 | 广西新未来信息产业股份有限公司 | A kind of super capacitance/voltage-resistor resistor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201667462U (en) | Voltage resistance interface structure of mini-size high voltage electric connector | |
| CN202796292U (en) | High overflowing and overvoltage preventing protector | |
| CN201489931U (en) | Safety surge-proof lightning arrester | |
| CN206461130U (en) | Electric connector, charging Magnetic suction thread and adapter | |
| CN108400041A (en) | A kind of coordinated type switch | |
| CN102709013A (en) | High overcurrent and overvoltage protector | |
| CN201927472U (en) | Voltage transformer with fuse for gas insulated cabinet | |
| CN105811143B (en) | Mining flame-proof type high-voltage cable connector | |
| CN204144565U (en) | A kind of rectangular seal connector with switching function | |
| CN105226430A (en) | The electrically connected method of protection against electric shock water proof type electricity getting device and protection against electric shock waterproof | |
| CN205039344U (en) | Multi -functional precious power cord and AC socket of charging | |
| CN202534966U (en) | Secondary wire leading-out device of hermetic sealing air chamber | |
| CN203967603U (en) | A kind of full-insulated full-sealed ring main unit | |
| CN203521756U (en) | Protective cover, compressor and electric appliance device | |
| CN202888663U (en) | Distribution box | |
| CN103236369B (en) | Solid insulation disconnecting switch | |
| CN203135268U (en) | Novel switch cabinet | |
| CN203659670U (en) | Pole column and upper wall structure thereof | |
| CN202840136U (en) | Explosion-proof electric connector with mechanical and electric interlocking function | |
| CN201788778U (en) | Horizontal voltage dependent resistor | |
| CN203260775U (en) | Flameproof wiring terminal | |
| CN212649928U (en) | Safety coal mine electric explosion-proof box | |
| CN103545742A (en) | Intelligent load switch cabinet | |
| CN206697395U (en) | Methane blast protection formula switchs | |
| CN204268420U (en) | A kind of lamp socket of explosion-proof lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |