CN2682714Y - An explosion proof type power surge protector - Google Patents
An explosion proof type power surge protector Download PDFInfo
- Publication number
- CN2682714Y CN2682714Y CN 200420047402 CN200420047402U CN2682714Y CN 2682714 Y CN2682714 Y CN 2682714Y CN 200420047402 CN200420047402 CN 200420047402 CN 200420047402 U CN200420047402 U CN 200420047402U CN 2682714 Y CN2682714 Y CN 2682714Y
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- Prior art keywords
- explosion
- type power
- proof type
- surge protector
- protective circuit
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- Expired - Lifetime
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Abstract
The utility model discloses an explosion proof type power surge protector, comprising a shell and a protective circuit. The protective circuit is arranged on a circuit board, and the circuit board is arranged in a box. The box is filled with high insulating fire retardant packaging filler, and the box is provided with a receiving terminal to form a protective circuit module. A plurality of protective circuit modules are arranged on the circuit board of the shell, and the shell is filled with the high insulating fire retardant packaging filler once more. The outside of the shell is provided with outlet lines electrically connected with the connecting terminal of the module. The utility model is packed for two times, and when damaged by the lightning stroke, this explosion proof type power surge protector has no explosion, no smoking and no electrical spark. So the utility model can be applied to the inflammable and explosive environment and the locations with corrosive gas and dampness. Secondly, the different protective circuits are packed into different modules by the utility model, and according to the assembling of the different modules. The protector suitable for various circuits is packed.
Description
Technical field
The utility model relates to a kind of power source surge protector; be particularly related to and be used for inflammable and explosive place, as oil, chemical industry, natural gas, coal gas, liquefied gas with the explosion-proof type power source surge protector that use in the bigger place of inflammable and explosive dust density may take place.
Background technology
The lightning arrester (SPD) that national standard and industry standard require to be used for inflammable and explosive place can not produce electric spark when work, and the domestic and international power arrester of producing (SPD) does not possess explosion prevention function at present.Some discharging gap type (switching mode) lightning arresters particularly, this lightning arrester can produce bigger electric spark when lightning current is released in conducting; Another kind of votage limit type lightning arrester also can produce electric spark when thunderbolt damages explosion, be out of use at petrochemical system and inflammable and explosive place therefore.It as China Patent No. 00237913.9 utility model patent, a kind of safe type piezoresistor is disclosed, comprise piezo-resistance, also be provided with and carry out heat conducting Temperature protection with piezo-resistance on the piezo-resistance next door, piezo-resistance and Temperature protection with the heat-conduction medium mutually insulated be encapsulated in the same housing, housing is stretched out in piezo-resistance and termination, Temperature protection ground.Though above-mentioned patent has safeguard function definitely, its all terminations are exposed outside, therefore, when big electric current by the time can produce spark, simultaneously, owing to only carry out simplified package one time, can't guarantee that it innerly produces spark and expose.So it can't be applied in the thunder strike circuit and inflammable and explosive place.
The utility model content
Technical problem to be solved of the present utility model is to overcome the deficiency of prior art; a kind of explosion-proof type power source surge protector through the secondary encapsulation is provided; the utility model can better be stopped to produce spark in the protector, and more safe and reliable, range of application is wider.
A kind of explosion-proof type power source surge protector that provides according to the utility model, comprise a housing and be installed in the interior protective circuit of described housing, it is characterized in that: described protective circuit is installed on the circuit board, described circuit board is installed in the box body, be filled with high insulation anti-flammability encapsulation filler in the described box body, described box body is provided with terminals, is combined into a protective circuit module; A plurality of described protective circuit modules are installed on the circuit board in the described housing, are filled with high insulation anti-flammability encapsulation filler in the described housing once more, described housing be provided with outward with described module on the lead-out wire that is electrically connected of terminals.
A kind of explosion-proof type power source surge protector that provides according to the utility model also has following attached
Technical characterictic:
All be provided with at least one air vent hole on described protective circuit module and the described housing, be provided with screen pack in the described air vent hole.
Among a kind of embodiment that provides according to the utility model, described protective circuit is made of the parallel connection of many protection branch roads, and route one piezo-resistance and the Temperature protection composition that is in series is propped up in each described protection.
Among the another kind of embodiment that provides according to the utility model, described protective circuit is made of the parallel connection of many protection branch roads, and route one piezo-resistance and the lightning protection fuse composition that is in series is propped up in each described protection.
Among another embodiment that provides according to the utility model, described protective circuit is made of the parallel connection of many protection branch roads, and each described protection is propped up route one piezo-resistance, a gas and put pipe and the Temperature protection composition that is in series.
Among another embodiment that provides according to the utility model, described protective circuit is made of the parallel connection of many protection branch roads, and route one piezo-resistance and the mechanical thermal release device composition that is in series is propped up in each described protection.
One display circuit module also is installed in the described housing, and the display screen on described display circuit module and the described housing is electrically connected.
Described display circuit module is a segmentation display control circuit module.
The space that circuit element is installed in the described box body is filled with quartz sand or flake asbestos, is filled with epoxy resin in another space.
Described housing is provided with the signal and communication port that is electrically connected with described module.
A kind of explosion-proof type power source surge protector that provides according to the utility model compared with prior art has following advantage: at first, the utility model is through the secondary encapsulation, can explosion when thunderbolt damages, do not smolder, no electric spark can be applied to inflammable and explosive environment, gas and moist place are corrosive; Secondly, the utility model is packaged into different modules with different protective circuits earlier, according to the combination of different modules, is packaged into the protector that is applicable to multiple circuit; Once more, the utility model is provided with display module, can understand the distress condition of protector easily, reminds the user in time to change protector.
Description of drawings
Fig. 1 is the structural representation of the utility model individual module.
Fig. 2 is a structural representation of the present utility model.
Fig. 3 is the circuit theory diagrams of protective circuit among a kind of embodiment of the utility model.
Fig. 4 is the circuit theory diagrams of protective circuit among the another kind of embodiment of the utility model.
Fig. 5 is the circuit theory diagrams of protective circuit among another embodiment of the utility model.
Fig. 6 is the circuit theory diagrams of protective circuit among another embodiment of the utility model.
Fig. 7 is the circuit theory diagrams that the utility model protective circuit is connected with display circuit.
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of preferred embodiment that provides according to the utility model, comprise a housing 1 and the protective circuit 2 that is installed in the described housing 1, described protective circuit 2 is installed on the circuit board 31, described circuit board 31 is installed in the box body 32, be filled with high insulation anti-flammability encapsulation filler 33 in the described box body 32, described box body 32 is provided with terminals 34, is combined into a protective circuit module 3; A plurality of described protective circuit modules 3 are installed on the circuit board 11 in the described housing 1, are filled with high insulation anti-flammability encapsulation filler 12 in the described housing 1 once more, described housing 1 is outer be provided with described module 3 on the lead-out wire 13 that is electrically connected of terminals 34.The utility model is encapsulated in lightning protection circuit 2 in the described box body 32 earlier, makes described module 3, more described module 3 is installed on the circuit board 11 in the described housing 1 after, carry out the secondary encapsulation.Whole circuit of the present utility model all adopt the mode of welding simultaneously, and therefore, the utility model is safer, can be applied to inflammable and explosive place.
Referring to Fig. 1 and Fig. 2, in a kind of preferred embodiment that provides according to the utility model, all be provided with at least one air vent hole 35,14 on described protective circuit module 3 and the described housing 1, be provided with screen pack 36,16 in the described air vent hole 35,14.Be provided with described air vent hole 35,14 and can play thermolysis.
Referring to Fig. 3, among a kind of embodiment that provides according to the utility model, described protective circuit 2 is made of many protection branch road 21 parallel connections, and each described protection branch road 21 is in series by a piezo-resistance 22 and a Temperature protection 23 and forms.Described Temperature protection 23 is as trip gear, and when thunderbolt taking place damage, this circuit can be threaded off automatically, plays the safeguard protection effect.Adopt many described protection branch roads 21 to improve the reliability of the utility model work simultaneously.
Referring to Fig. 4, among the another kind of embodiment that provides according to the utility model, described protective circuit 2 is made of many protection branch road 21 parallel connections, and each described protection branch road 21 is in series by a piezo-resistance 22 and a lightning protection fuse 24 and forms.Described lightning protection fuse 24 is as trip gear, and when thunderbolt taking place damage, this circuit can be threaded off automatically, plays the safeguard protection effect.Adopt many described protection branch roads 21 to improve the reliability of the utility model work simultaneously.
Referring to Fig. 5, among another embodiment that provides according to the utility model, described protective circuit 2 is made of many protection branch road 21 parallel connections, and each described protection branch road 21 is put pipe 25 and one Temperature protection 23 by a piezo-resistance 22, a gas and is in series and forms.Described gas is put pipe 25 combine use with described Temperature protection 23, when thunderbolt damages, can thread off automatically, the great advantage of this combination of circuits is not have leakage current.Adopt many described protection branch roads 21 to improve the reliability of the utility model work simultaneously.
Referring to Fig. 6, among another embodiment that provides according to the utility model, described protective circuit 2 is made of many protection branch road 21 parallel connections, and each described protection branch road 21 is in series by a piezo-resistance 22 and a mechanical thermal release device 26 and forms.The utility model design has described mechanical thermal release device 26, is combined into the explosion-proof type single module, when this circuit damages when thunderbolt, can thread off automatically, because element is installed in the modular cartridge, therefore can not produce electric spark, and this circuit is simple and reliable.Adopt many described protection branch roads 21 to improve the reliability of the utility model work simultaneously.
Referring to Fig. 2 and Fig. 7, in a kind of preferred embodiment that provides according to the utility model, a display circuit module 15 is installed also in the described housing 1, described display circuit module 15 is electrically connected with a display screen 4 on the described housing 1.Described display circuit module 15 is installed in to encapsulate in the box body by display circuit and forms.Whole described display circuit module 15 is installed on the described circuit board 11, and itself and described module 3 are electrically connected, and reserves the display window that wiring causes panel, uses epoxy encapsulation simultaneously.The user can clearly recognize the operating state of inner each described module 3, reminds the user whether will change described module 3.
Referring to Fig. 7, in a kind of preferred embodiment that provides according to the utility model, described display circuit module 15 is a segmentation display control circuit module.Described segmentation display control circuit adopts prior art, and concrete operation principle repeats no more herein.Adopt described segmentation display control circuit module, show, make the user grasp damaged condition at any time, reach at 60% o'clock, instantaneously changing so that damage for component wear segmentation in 20%, 40%, 60%, 80%, 100% o'clock in each described module 3.
Referring to Fig. 1 and Fig. 2, in a kind of preferred embodiment that provides according to the utility model, the space that circuit element is installed in the described box body 32 is filled with quartz sand or flake asbestos 331, be filled with epoxy resin 332 in another space, the space that described module 3 is installed in the described housing 1 is filled with quartz sand or flake asbestos 121, be filled with epoxy resin 122 in another space, this packaged type has reasonable packaging effect.
Referring to Fig. 2, in a kind of preferred embodiment that provides according to the utility model, described housing 1 is provided with the signal and communication port that is electrically connected with described module 3,15.Can realize telecommunication and control by PORT COM, improve the place of its application, convenient control.
Claims (10)
1, a kind of explosion-proof type power source surge protector, comprise a housing (1) and be installed in the interior protective circuit (2) of described housing (1), it is characterized in that: described protective circuit (2) is installed on the circuit board (31), described circuit board (31) is installed in the box body (32), be filled with high insulation anti-flammability encapsulation filler (33) in the described box body (32), described box body (32) is provided with terminals (34), is combined into a protective circuit module (3); A plurality of described protective circuit modules (3) are installed on the interior circuit board (11) of described housing (1); be filled with high insulation anti-flammability encapsulation filler (12) in the described housing (11) once more, described housing (1) is outer be provided with described module (3) on the lead-out wire (13) that is electrically connected of terminals (34).
2, a kind of explosion-proof type power source surge protector as claimed in claim 1; it is characterized in that: all be provided with at least one air vent hole (35,14) on described protective circuit module (3) and the described housing (1), be provided with screen pack (36,16) in the described air vent hole (35,14).
3, a kind of explosion-proof type power source surge protector as claimed in claim 1 or 2; it is characterized in that: described protective circuit (2) constitutes by many protection branch roads (21) are in parallel, and each described protection branch road (21) is in series by a piezo-resistance (22) and a Temperature protection (23) and forms.
4, a kind of explosion-proof type power source surge protector as claimed in claim 1 or 2; it is characterized in that: described protective circuit (2) constitutes by many protection branch roads (21) are in parallel, and each described protection branch road (21) is in series by a piezo-resistance (22) and a lightning protection fuse (24) and forms.
5, a kind of explosion-proof type power source surge protector as claimed in claim 1 or 2; it is characterized in that: described protective circuit (2) constitutes by many protection branch roads (21) are in parallel, and each described protection branch road (21) is put pipe (25) and a Temperature protection (23) by a piezo-resistance (22), a gas and is in series and forms.
6, a kind of explosion-proof type power source surge protector as claimed in claim 1 or 2; it is characterized in that: described protective circuit (2) constitutes by many protection branch roads (21) are in parallel, and each described protection branch road (21) is in series by a piezo-resistance (22) and a mechanical thermal release device (26) and forms.
7, a kind of explosion-proof type power source surge protector as claimed in claim 1 or 2; it is characterized in that: a display circuit module (15) also is installed in the described housing (1), and the display screen (4) on described display circuit module (15) and the described housing (1) is electrically connected.
8, a kind of explosion-proof type power source surge protector as claimed in claim 7 is characterized in that: described display circuit module (15) is a segmentation display control circuit module.
9, a kind of explosion-proof type power source surge protector as claimed in claim 1 or 2; it is characterized in that: the space that circuit element is installed in the described box body (32) is filled with quartz sand or flake asbestos (331); be filled with epoxy resin (332) in another space; the space that described module (3) is installed in the described housing (1) is filled with quartz sand or flake asbestos (121), is filled with epoxy resin (122) in another space.
10, a kind of explosion-proof type power source surge protector as claimed in claim 1 or 2 is characterized in that: described housing (1) is provided with the signal and communication port that is electrically connected with described module (3,15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420047402 CN2682714Y (en) | 2004-03-25 | 2004-03-25 | An explosion proof type power surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420047402 CN2682714Y (en) | 2004-03-25 | 2004-03-25 | An explosion proof type power surge protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2682714Y true CN2682714Y (en) | 2005-03-02 |
Family
ID=34608078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420047402 Expired - Lifetime CN2682714Y (en) | 2004-03-25 | 2004-03-25 | An explosion proof type power surge protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2682714Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100401610C (en) * | 2004-04-12 | 2008-07-09 | 四川中光高技术研究所有限责任公司 | Anti-explosion power source surge protector |
| CN103370845A (en) * | 2011-02-14 | 2013-10-23 | 恩德莱斯和豪瑟尔两合公司 | Electronic device and protection element therefor, for use in potentially explosive areas |
| CN105913985A (en) * | 2016-06-21 | 2016-08-31 | 广西新未来信息产业股份有限公司 | Sand filling machine for piezoresistor |
-
2004
- 2004-03-25 CN CN 200420047402 patent/CN2682714Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100401610C (en) * | 2004-04-12 | 2008-07-09 | 四川中光高技术研究所有限责任公司 | Anti-explosion power source surge protector |
| CN103370845A (en) * | 2011-02-14 | 2013-10-23 | 恩德莱斯和豪瑟尔两合公司 | Electronic device and protection element therefor, for use in potentially explosive areas |
| CN103370845B (en) * | 2011-02-14 | 2015-10-21 | 恩德莱斯和豪瑟尔两合公司 | The electronic installation used in the region having explosion hazard and protection component thereof |
| CN105913985A (en) * | 2016-06-21 | 2016-08-31 | 广西新未来信息产业股份有限公司 | Sand filling machine for piezoresistor |
| CN105913985B (en) * | 2016-06-21 | 2018-02-09 | 广西新未来信息产业股份有限公司 | Piezo-resistance fills husky machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080709 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |