CN2209383Y - Indication alarm type surge absorber - Google Patents
Indication alarm type surge absorber Download PDFInfo
- Publication number
- CN2209383Y CN2209383Y CN 94246204 CN94246204U CN2209383Y CN 2209383 Y CN2209383 Y CN 2209383Y CN 94246204 CN94246204 CN 94246204 CN 94246204 U CN94246204 U CN 94246204U CN 2209383 Y CN2209383 Y CN 2209383Y
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- CN
- China
- Prior art keywords
- alarm
- indication component
- piezo
- utility
- resistance
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model belongs to a lightning preventive and over-voltage protective device for electrical installations. The A pole of a piezoresistor is welded on the bottom of an indicative component by low temperature soldering tin, the B pole of the piezoresistor and the indicative component are respectively connected with two installation plates and are in parallel connection with the line of the protected electrical installations. The indicative component is connected with a contact terminal via a shifting fork, and the matched contact reeds are respectively connected with an alarm. When the utility model is impacted by over-voltage, the piezoresistor can ineffectively heat and melt the soldering tin, and the indicative component can be ejected out of a shell under the elastic action of a pressure spring for clear indication. Meanwhile, the indicative component can drive the shifting fork to switch on the alarm, and the utility model has the advantages of safe operation, high protection level and strong surge absorption ability.
Description
The utility model belongs to a kind of lightning protection and over-pressure safety device of electric equipment.
In prior art, the power supply and the over-pressure safety device of post and telecommunications system electric equipment, employing be varistor, what the lightning protection measure of railway signal power supply was adopted is the lightning protection composite set of varistor and discharge tube composition.Use varistor to be, when owing to after overvoltage or thunderbolt make that varistor lost efficacy, often can not be found in time, and cause power supply and communication abnormality or interruption that equipment is damaged as the disadvantage of protective device.
The purpose of this utility model provides a kind of protective device of electric equipment; this device is parallel in the circuit; because after overvoltage or thunderbolt cause pressure responsive resistor failure, can in time make indication and report to the police, and make piezo-resistance break away from circuit and still can protect the normal operation of electric equipment.
Embodiment of the present utility model is that the A utmost point with piezo-resistance is connected with the installation sheet I, the B utmost point of piezo-resistance is connected on the bottom of indication component with the eutectic welding soldering, indication component is connected with the installation sheet II with binding post, the top of indication component is installed in the guide pin bushing, in the mounting spring seat of bottom, there is a prominent edge at the middle part, should be prominent along down and between the spring base stage clip being installed, use a torsion spring that one end of shift fork is fixed on the prominent along last of indication component, the other end of shift fork is equipped with contact terminal, and be connected with the alarm line, with the contact terminal coupling one contact spring being installed also is connected with another line of alarm, under normal circumstances, contact terminal and contact spring keep off-state, and the circuit of alarm also is in off-state.Piezo-resistance is sealed in the flame-proof silicon rubber, and whole device is installed in the PPO flame retardant plastics housing, has the ejection door of indication component on the housing top.
When since repeatedly impacted by lightning induced voltage and switching overvoltage after, the pressure responsive resistor failure heating, heat makes melts soldering tin by the B utmost point, indication component is subjected to the elastic force effect of stage clip, make the red some ejection housing on its top warn demonstration, indication component is prominent simultaneously revolves along driving on the shift fork, makes the connection of contact terminal and contact spring, the circuit of alarm is connected and is given the alarm, and reminds the staff to upgrade maintenance.
The advantage of this indication alarm type surge absorber is: it is big to impact the circulation capacity; the surge absorbability is strong; protection level height; deboost is low, and response speed is fast, and has the voltage-current characteristic of symmetry; AC-DC Circuit can both be used; positive and negative overvoltage all can absorb, and the good seal performance of whole device is moistureproof, fire-retardant.If it is bad to meet with crushing in the use, can breaks away from circuit automatically and indicate and report to the police, so that on-call maintenance and replacing.
Accompanying drawing 1 is the utility model embodiment electrode connecting portion position cutaway view.
Accompanying drawing 2 is the utility model embodiment transmission position cutaway views.
Drawing explanation: 1-installation sheet I, the 2-piezo-resistance A utmost point, 3-low temperature scolding tin, 4-piezo-resistance, the 5-piezo-resistance B utmost point, 6-spring base, 7-stage clip, the 8-edge of dashing forward, the 9-indication component, 10-guide pin bushing, 11-housing, 12-installation sheet II, 13-binding post, 14-alarm line, 15-alarm line, 16-shift fork, 17-torsion spring, the 18-contact spring, 19-contact terminal, 20-silicon rubber.
Embodiment:
Accompanying drawing 1 is the utility model embodiment electrode connecting portion position cutaway view, the A utmost point 2 of piezo-resistance 4 is connected with installation sheet I 1, the B utmost point 5 usefulness low temperature scolding tin 3 of piezo-resistance are welded on the bottom of indication component 9, indication component 9 binding post 13(OT2.5-4) is connected with installation sheet II 12, the top of indication component 9 is installed in the guide pin bushing 10, in its underpart mounting spring seat 6, it is one prominent along 8 that indication component 9 middle parts have, prominent along 8 times with spring base 6 between installation one stage clip 7.Accompanying drawing 2 is the utility model embodiment transmission position cutaway views, use a torsion spring 17, be fixed on an end of shift fork 16 prominent along on 8, the other end of shift fork 16 is equipped with contact terminal 19, and be connected with alarm line 14, be connected with the contact spring 18 of contact terminal 19 couplings and another line 15 of alarm, under normal circumstances, contact terminal 19 and contact spring 18 keep off-state.Piezo-resistance is sealed in the flame-proof silicon rubber, and whole device is installed in the PPO flame retardant plastics housing 11, has the ejection door of indication component 9 on the top of housing 11.
Claims (1)
1, a kind of indication alarm type surge absorber, it is characterized in that: the A utmost point of piezo-resistance (4) is connected with installation sheet I (1), the B utmost point (5) of piezo-resistance is welded on the bottom of indication component (9) with low temperature scolding tin (3), indication component (9) is connected with installation sheet II (12) with binding post (13), the top of indication component (9) is installed in the guide pin bushing (10), its underpart is installed in the spring base (6), there is a prominent edge (8) at indication component (9) middle part, down and between the spring base (6) stage clip (7) is installed prominent along (8), use a torsion spring (17) to be fixed on an end of shift fork (16) prominent along on (8), the other end of shift fork (16) is equipped with contact terminal (19), and be connected with alarm line (14), be connected with the contact spring (18) of contact terminal (19) coupling and another line (15) of alarm, piezo-resistance (4) is sealed in the flame-proof silicon rubber (20), whole device is installed in the PPO flame retardant plastics housing (11), and the top of housing (11) has the ejection door of indication component (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94246204 CN2209383Y (en) | 1994-11-24 | 1994-11-24 | Indication alarm type surge absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94246204 CN2209383Y (en) | 1994-11-24 | 1994-11-24 | Indication alarm type surge absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2209383Y true CN2209383Y (en) | 1995-10-04 |
Family
ID=33851759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94246204 Expired - Fee Related CN2209383Y (en) | 1994-11-24 | 1994-11-24 | Indication alarm type surge absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2209383Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101252035B (en) * | 2007-11-30 | 2010-12-08 | 西安市西无二电子信息集团有限公司 | Semi- ceramic flame-proof surge protector |
| CN101199029B (en) * | 2005-08-05 | 2011-03-30 | 基瓦斯珀尔有限公司 | Overvoltage protection device with status signaling display |
| CN101427327B (en) * | 2006-04-26 | 2011-04-06 | 德恩及索恩两合股份有限公司 | Method for dimensioning a separating device for a surge arrester |
| CN101615456B (en) * | 2008-06-24 | 2013-05-29 | 菲尼克斯电气公司 | Overvoltage protection element |
| CN103943292A (en) * | 2014-04-04 | 2014-07-23 | 广西新未来信息产业股份有限公司 | Safety pressure-sensitive resistor with thermal trip indication function |
-
1994
- 1994-11-24 CN CN 94246204 patent/CN2209383Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101199029B (en) * | 2005-08-05 | 2011-03-30 | 基瓦斯珀尔有限公司 | Overvoltage protection device with status signaling display |
| CN101427327B (en) * | 2006-04-26 | 2011-04-06 | 德恩及索恩两合股份有限公司 | Method for dimensioning a separating device for a surge arrester |
| CN101252035B (en) * | 2007-11-30 | 2010-12-08 | 西安市西无二电子信息集团有限公司 | Semi- ceramic flame-proof surge protector |
| CN101615456B (en) * | 2008-06-24 | 2013-05-29 | 菲尼克斯电气公司 | Overvoltage protection element |
| CN103943292A (en) * | 2014-04-04 | 2014-07-23 | 广西新未来信息产业股份有限公司 | Safety pressure-sensitive resistor with thermal trip indication function |
| CN103943292B (en) * | 2014-04-04 | 2016-08-24 | 广西新未来信息产业股份有限公司 | A kind of safe varistor of the hot tripping indication function of band |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |