CN103715618B - A kind of explosion-proof electrifying box - Google Patents
A kind of explosion-proof electrifying box Download PDFInfo
- Publication number
- CN103715618B CN103715618B CN201410015811.9A CN201410015811A CN103715618B CN 103715618 B CN103715618 B CN 103715618B CN 201410015811 A CN201410015811 A CN 201410015811A CN 103715618 B CN103715618 B CN 103715618B
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- Prior art keywords
- explosion
- case lid
- supply socket
- dry
- proof
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- 230000005291 magnetic effect Effects 0.000 claims abstract description 43
- 230000005611 electricity Effects 0.000 claims abstract description 9
- 238000004880 explosion Methods 0.000 claims description 37
- 230000002457 bidirectional effect Effects 0.000 claims description 23
- 238000001514 detection method Methods 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 230000001960 triggered effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000002955 isolation Methods 0.000 abstract description 5
- 239000002360 explosive Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004883 computer application Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Abstract
The present invention relates to a kind of explosion-proof electrifying box, it is applied to the electrical equipment power taking of combustible and explosive area. It is characterized in that: comprise casing, case lid, supply socket, magnetic control switch it is furnished with in casing, case lid is provided with permanent magnet, the L end of supply socket is connected with live wire by described magnetic control switch, when case lid is closed, described permanent magnet acts on described magnetic control switch and makes magnetic control switch be in conducting state thus make described supply socket obtain electricity, and when case lid is opened, described permanent magnet makes magnetic control switch be in open circuit state thus make described supply socket power-off away from described magnetic control switch. Useful effect is: the electrical connection contact of dry-reed tube seals in environment at dry-reed tube, with the external world be isolation, dry-reed tube itself is every quick-fried, when plug inserts supply socket or pulls away supply socket, supply socket is in power-off state, electrical spark would not be produced like this, thus reach the effect of intrinsic safe explosion-proof.
Description
Technical field
The present invention relates to a kind of explosion-proof electrifying box, it is applied to the electrical equipment power taking of combustible and explosive area.
Background technology
Appliance plug is inserted the moment of socket, owing to there is a bigger contact resistance, spark can be produced at point of contact and produce heat, along with the stable contact of plug and socket contact, spark and heat disappear thereupon, when appliance plug extracts socket, often due to the existence of load, also spark can be produced in the moment of contact separation, so in the spark of combustible and explosive area power contact and the very easily explosion caused accident of heat. Along with in the application of oil, petrochemical industry new technology, particularly information-based computer application, as: on-line analysis instrument, computer, PLC, operation station, chargeable electric torch used in everyday, wireless interspeaker, notebook computer etc. all can run into power taking or charging problem, owing to existing charging adapter does not all consider explosion-proof design (maybe can not carry out explosion-proof design), touch spark can be produced, if directly use easy explosion caused accident in anti-explosion area in the moment inserting or extracting socket.
Method explosion-proof at present is divided into the explosion-proof and intrinsic safe explosion-proof of isolation, isolates explosion-proof i.e. employing metal vessel and is undertaken electrical spark closing isolation, and namely intrinsic safe explosion-proof designs the generation avoiding electrical spark, the invention belongs to intrinsic safe explosion-proof.
Summary of the invention
The thinking of the present invention is: plug insertion socket or when pulling away socket socket be in power-off state, doing so avoids the generation of electrical spark, thus reach the effect of intrinsic safe explosion-proof.
The technical scheme of the present invention is:
A kind of explosion-proof electrifying box, it is characterized in that: comprise casing, case lid, supply socket, anti-explosion magnetic controlled switch it is furnished with in casing, case lid is provided with permanent magnet, the L end of supply socket is connected with live wire by described anti-explosion magnetic controlled switch, when case lid is closed, described permanent magnet acts on described anti-explosion magnetic controlled switch and makes anti-explosion magnetic controlled switch be in conducting state thus make described supply socket obtain electricity, and when case lid is opened, described permanent magnet makes anti-explosion magnetic controlled switch be in open circuit state thus make described supply socket power-off away from described anti-explosion magnetic controlled switch.
Described a kind of explosion-proof electrifying box, is characterized in that: anti-explosion magnetic controlled switch is dry-reed tube.
Described a kind of explosion-proof electrifying box, is characterized in that: anti-explosion magnetic controlled switch is made up of dry-reed tube, current limliting resistance, bidirectional thyristor.
Described a kind of explosion-proof electrifying box, is characterized in that: anti-explosion magnetic controlled switch is triggered module formed by dry-reed tube, current limliting resistance, bidirectional thyristor, zero passage detection.
Described a kind of explosion-proof electrifying box, is characterized in that: casing, case lid are made of metal.
The invention has the beneficial effects as follows: 1, the electrical connection contact of dry-reed tube seals in environment (particularly vacuum dry-reed tube, non-ferromagnetic metal casing dry-reed tube) at dry-reed tube, with the external world be isolation, dry-reed tube itself is every quick-fried, when plug inserts supply socket or pulls away supply socket, supply socket is in power-off state, electrical spark would not be produced like this, thus reach the effect of intrinsic safe explosion-proof. 2, adopting the magnetic control on-off mode of dry-reed tube control bidirectional thyristor, bidirectional thyristor is high-power contactless switch, it is possible to realize high-power power taking. 3, increase zero passage detection further and trigger module, eliminate the possibility that switching power supply causes electrical spark further.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of explosion-proof electrifying box.
Fig. 2 is the embodiment adopting dry-reed tube to be magnetic control switch.
Fig. 3 adopts dry-reed tube to be the schematic circuit diagram of anti-explosion magnetic controlled switch.
Fig. 4 is the embodiment schematic circuit diagram adopting dry-reed tube, bidirectional thyristor to be anti-explosion magnetic controlled switch.
Fig. 5 is the embodiment schematic circuit diagram that Fig. 4 embodiment increases that zero passage detection triggers module.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structure principle chart of explosion-proof electrifying box. explosion-proof electrifying box is made up of casing 10, case lid 11, rotating shaft 12, and casing 10 can be carried out open and close by rotating shaft 12 by case lid 11, arrange supply socket 40 and anti-explosion magnetic controlled switch 100 in casing 10, case lid 11 is provided with permanent magnet 30. the zero line of power supply, ground wire are connected to N, E wiring end of supply socket 40, and the live wire of power supply is connected to the L wiring end of supply socket by anti-explosion magnetic controlled switch 100. when case lid 11 is opened, anti-explosion magnetic controlled switch 100 is in open circuit state, without electricity in supply socket 40, in supply socket, do not have electrical spark during insertion plug to produce, case lid 11 closed by plug after plugging steady, the permanent magnet 30 arranged on case lid 11 is near anti-explosion magnetic controlled switch 100, anti-explosion magnetic controlled switch 100 is closed makes supply socket 40 obtain electricity, owing to anti-explosion magnetic controlled switch 100 is closed and disconnection all can not produce electrical spark or electrical spark is isolated, such power taking process is intrinsic safe explosion-proof, when opening case lid 11, the permanent magnet 30 arranged on case lid 11 is away from anti-explosion magnetic controlled switch 100, anti-explosion magnetic controlled switch 100 open circuit makes supply socket 40 without electricity, at this moment pull out plug in supply socket, also can not produce electrical spark, so whole operating process is all intrinsic safe explosion-proof. 13 is plug wires outlet.
Described anti-explosion magnetic controlled switch is defined as: take magnetic field as control mode, and switch switching produces without electrical spark, or the electrical spark produced is isolated in enclosed space, such as contactless switch, dry-reed tube switch.
In order to improve requirement of explosion proof further, casing, case lid are made of metal.
Fig. 2 is the embodiment adopting dry-reed tube to be magnetic control switch. In Fig. 2, anti-explosion magnetic controlled switch 100 is replaced into dry-reed tube 24, two ferromagnetic electrode 21,25 are had in dry-reed tube 24, electrode 21 has contact 22, electrode 25 has contact 23, the wiring end 20 of electrode 21, the wiring end 26 of electrode 25, the live wire of power supply is connected on wiring end 20, and wiring end 26 is connected to the L end of supply socket. At this, the selection of dry-reed tube can select vacuum dry-reed tube, aluminum shell dry-reed tube, adopts dry-reed tube as switch device, dry-reed tube itself is every quick-fried on the one hand, reed switch contact is direct connection in addition, is suitable for any capacitive or perception load, and power is generally less than 1000W.
Explosion-proof electrifying box shown in Fig. 2, it is characterized in that: comprise casing, case lid, supply socket, dry-reed tube it is furnished with in casing, case lid is provided with permanent magnet, the L end of supply socket is connected with live wire by described dry-reed tube, when case lid is closed, described permanent magnet acts on described dry-reed tube and makes dry-reed tube be in conducting state thus make described supply socket obtain electricity, and when case lid is opened, described permanent magnet makes dry-reed tube be in open circuit state thus make described supply socket power-off away from described dry-reed tube.
Fig. 3 adopts dry-reed tube to be the schematic circuit diagram of anti-explosion magnetic controlled switch.
Fig. 4 is the embodiment schematic circuit diagram adopting dry-reed tube, bidirectional thyristor to be anti-explosion magnetic controlled switch. In Fig. 4, anti-explosion magnetic controlled switch is made up of dry-reed tube 24, current limliting resistance 50, bidirectional thyristor 51, the control gate G end that the switching of bidirectional thyristor 51 controls bidirectional thyristor by dry-reed tube 24 realizes, and the switching of dry-reed tube is by the permanent magnet control arranged on case lid. The control electric current that the useful effect of this scheme is dry-reed tube is very little, does not generally produce electrical spark (even if producing electrical spark is also isolation, be intrinsic safe explosion-proof), and bidirectional thyristor is contactless switching switch, so electrical spark can not be produced. In addition, this scheme switch power can be very big, it is possible to is greater than 1000W, and shortcoming is suitable for capacitive load.
The explosion-proof electrifying box of circuit shown in Fig. 4, it is characterized in that: comprise casing, case lid, supply socket it is furnished with in casing, dry-reed tube, current limliting resistance, bidirectional thyristor, case lid is provided with permanent magnet, the L end of supply socket is connected with live wire by described bidirectional thyristor, the circuit that the control gate of described bidirectional thyristor forms with described dry-reed tube and current limliting resistance is connected, when case lid is closed, described permanent magnet acts on described dry-reed tube and makes dry-reed tube be in conducting state thus make described bidirectional thyristor conducting and make supply socket obtain electricity, when case lid is opened described permanent magnet away from described dry-reed tube make dry-reed tube be in open circuit state make described bidirectional thyristor block thus make described supply socket power-off.
Fig. 5 is the embodiment schematic circuit diagram that Fig. 4 embodiment increases that zero passage detection triggers module. In Fig. 5,60 is that zero passage detection triggers module, triggers module by zero passage detection and realizes the zero cross fired of bidirectional thyristor, namely conducting and to be just alternating current voltage when disconnecting be zero time point, the possibility of generation electrical spark is lower like this.
The explosion-proof electrifying box of circuit shown in Fig. 5, it is characterized in that: comprise casing, case lid, supply socket it is furnished with in casing, dry-reed tube, current limliting resistance, bidirectional thyristor, zero passage detection triggers module, case lid is provided with permanent magnet, the L end of supply socket is connected with live wire by described bidirectional thyristor, the circuit that the control gate of described bidirectional thyristor triggers module composition with described dry-reed tube and current limliting resistance and zero passage detection is connected, when case lid is closed, described permanent magnet acts on described dry-reed tube and makes dry-reed tube be in conducting state thus make described bidirectional thyristor passing zero trigger and make supply socket obtain electricity, when case lid is opened described permanent magnet away from described dry-reed tube make dry-reed tube be in open circuit state make described bidirectional thyristor zero passage block thus make described supply socket power-off.
Claims (5)
1. an explosion-proof electrifying box, it is characterized in that: comprise casing, case lid, supply socket it is furnished with in casing, anti-explosion magnetic controlled switch, case lid is provided with permanent magnet, the L end of supply socket is connected with live wire by described anti-explosion magnetic controlled switch, plug power taking state case lid must be closed, permanent magnet described in case lid closing condition acts on described anti-explosion magnetic controlled switch makes anti-explosion magnetic controlled switch be in conducting state thus make described supply socket obtain electricity, plug is extracted front case lid and must be opened, case lid opens permanent magnet described in state makes anti-explosion magnetic controlled switch be in open circuit state thus make described supply socket power-off away from described anti-explosion magnetic controlled switch.
2. the explosion-proof electrifying box of one according to claim 1, is characterized in that: anti-explosion magnetic controlled switch is dry-reed tube.
3. the explosion-proof electrifying box of one according to claim 1, is characterized in that: anti-explosion magnetic controlled switch is made up of dry-reed tube, current limliting resistance, bidirectional thyristor.
4. the explosion-proof electrifying box of one according to claim 1, is characterized in that: anti-explosion magnetic controlled switch is triggered module formed by dry-reed tube, current limliting resistance, bidirectional thyristor, zero passage detection.
5. a kind of explosion-proof electrifying box according to claim 1 or 2 or 3 or 4, is characterized in that: casing, case lid are made of metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410015811.9A CN103715618B (en) | 2014-01-14 | 2014-01-14 | A kind of explosion-proof electrifying box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410015811.9A CN103715618B (en) | 2014-01-14 | 2014-01-14 | A kind of explosion-proof electrifying box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103715618A CN103715618A (en) | 2014-04-09 |
| CN103715618B true CN103715618B (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410015811.9A Expired - Fee Related CN103715618B (en) | 2014-01-14 | 2014-01-14 | A kind of explosion-proof electrifying box |
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| Country | Link |
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| CN (1) | CN103715618B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654908A (en) * | 2017-01-24 | 2017-05-10 | 宁海县雁苍山电力设备厂有限公司 | Sparkproof low-contact resistance power distribution box |
| CN111916118B (en) * | 2018-09-07 | 2022-01-25 | 河南经贸职业学院 | Explosion-proof device for computer storage device |
| CN111564765A (en) * | 2020-04-24 | 2020-08-21 | 吴凡 | Explosion-proof electricity-taking box |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87203847U (en) * | 1987-03-13 | 1988-03-23 | 彭炳泉 | Magneto-electric sparkless flame-proof switch |
| US6989996B2 (en) * | 2003-04-03 | 2006-01-24 | Brodwell Industrial Sales Ltd. | Circuit breaker panel for hazardous environments |
| CN103500903A (en) * | 2013-09-23 | 2014-01-08 | 金永革 | Anti-explosion electric connection device |
-
2014
- 2014-01-14 CN CN201410015811.9A patent/CN103715618B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87203847U (en) * | 1987-03-13 | 1988-03-23 | 彭炳泉 | Magneto-electric sparkless flame-proof switch |
| US6989996B2 (en) * | 2003-04-03 | 2006-01-24 | Brodwell Industrial Sales Ltd. | Circuit breaker panel for hazardous environments |
| CN103500903A (en) * | 2013-09-23 | 2014-01-08 | 金永革 | Anti-explosion electric connection device |
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| Publication number | Publication date |
|---|---|
| CN103715618A (en) | 2014-04-09 |
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Address after: 225321 No. 108 Mingzhu Avenue, Yongan Town, Taizhou port, Jiangsu Patentee after: Lu Tengjiao Address before: Haimen City 226136 Jiangsu city of Nantong province Wansheng rural village 44 years group Patentee before: Lu Tengjiao |
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Address after: 226001 No. 58 Chongchuan Road, Nantong City, Jiangsu Province, Science and Technology Park 1-109 Patentee after: Lu Tengjiao Address before: 225321 No. 108 Pearl Avenue, Yonganzhou Town, Gaogang District, Taizhou City, Jiangsu Province Patentee before: Lu Tengjiao |
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Address after: Building 19, xiangyangrenjia, No. 358, Xiangyang Road, Gangkou Town, Gaogang District, Taizhou City, Jiangsu Province 225300 Patentee after: Lu Tengjiao Address before: Jiangsu province Nantong City Chongchuan road 226001 No. 58 Science Park 1-109 Patentee before: Lu Tengjiao |
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Address after: No.36, Longting Middle Road, Fanyang Town, Fanchang District, Wuhu City, Anhui Province 241000 Patentee after: Lu Tengjiao Address before: Building 19, xiangyangrenjia, No. 358, Xiangyang Road, Gangkou Town, Gaogang District, Taizhou City, Jiangsu Province 225300 Patentee before: Lu Tengjiao |
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Effective date of registration: 20220309 Address after: 226000 Room 501, building 7, Wuzhou City Plaza, No. 25, Zhongxiu Middle Road, Zhongxiu street, Chongchuan District, Nantong City, Jiangsu Province Patentee after: Nantong zhongkuo Information Technology Co.,Ltd. Address before: No.36, Longting Middle Road, Fanyang Town, Fanchang District, Wuhu City, Anhui Province 241000 Patentee before: Lu Tengjiao |
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Granted publication date: 20160601 |
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