CN103500902A - Explosion-proof socket - Google Patents
Explosion-proof socket Download PDFInfo
- Publication number
- CN103500902A CN103500902A CN201310434249.9A CN201310434249A CN103500902A CN 103500902 A CN103500902 A CN 103500902A CN 201310434249 A CN201310434249 A CN 201310434249A CN 103500902 A CN103500902 A CN 103500902A
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- socket
- light source
- plug
- light
- electronic switch
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Abstract
The invention relates to an explosion-proof socket which is applied to electricity supply for electric appliances in places where combustion and explosion happen easily. The explosion-proof socket is characterized in that at least one set of socket contacts are connected with one end of a reed pipe, the other end of the reed pipe is connected with a power input line, an insulation guide line winding which can produce a magnetic field is arranged on the periphery of the reed pipe, on-off of a current of the insulation guide line winding is controlled through an electronic switch, and the electronic switch is controlled by a photosensitive device; a light source irradiates the photosensitive device when no plug is plugged into the socket, the photosensitive device controls the electronic switch to cut off the current of the insulation guide line winding, and the reed pipe is located in a cut-off state; when being plugged into the socket, the plug blocks the light source from irradiating the photosensitive device, the photosensitive device controls the electronic switch to connect the current of the insulation guide line winding, and the reed pipe is located in a connected state. The explosion-proof socket has the advantages that when the plug is plugged in or pulled out of the socket, the plug is in an outage state when being electrically connected or disconnected with the contacts, and therefore electric sparks are avoided and then the effect of intrinsic safety explosion prevention is achieved.
Description
Technical field
The present invention relates to a kind of Explosionproof socket, be applied to the electrical equipment power taking in inflammable and explosive place.
Background technology
Appliance plug is inserted to the moment of conventional socket, owing to there being a larger contact resistance, can produce spark and produce heat at contact point, stable contact along with the plug and socket contact, spark and heat disappear thereupon, when appliance plug is extracted socket, often due to the existence of load, moment in contact separation also can produce spark, so in spark and the very easily explosion caused accident of heat of inflammable and explosive place power contact.Explosion-proof method is divided into the explosion-proof and intrinsic safe explosion-proof of isolation at present, isolates the explosion-proof canister that adopts electric spark is sealed to isolation, and intrinsic safe explosion-proof designs the generation of avoiding electric spark, the invention belongs to intrinsic safe explosion-proof.
Summary of the invention
Thinking of the present invention is: plug insertion socket or while pulling away socket is in off-position when being electrically connected to contact and connecting or separate, and has so just avoided the generation of electric spark, thereby has reached the effect of intrinsic safe explosion-proof.
Technical scheme of the present invention is:
A kind of Explosionproof socket, comprise socket contact sheet, it is characterized in that: at least one group of socket contact sheet is connected with tongue tube one end, the tongue tube other end is connected with power input line, the tongue tube periphery arranges the insulated conductor winding that can produce magnetic field, the current switching of insulated conductor winding is controlled by electronic switch, and electronic switch is controlled by light-sensitive device;
One light source irradiation light-sensitive device is arranged while inserting without plug, and light-sensitive device is controlled electronic switch and is disconnected the insulated conductor winding current, and tongue tube is in off-state;
While having plug to insert, plug stop light source irradiation light-sensitive device, light-sensitive device is controlled electronic switch and is connected the insulated conductor winding current, and tongue tube is in on-state.
Described light source adopts LED light source.
Described light source adopts light modulated, and light source is luminous by modulators modulate, and the photosignal that light-sensitive device is accepted simultaneously is by corresponding demodulator demodulation.
The invention has the beneficial effects as follows: at first, the electrical connection contact of tongue tube is in the tongue tube sealed environment, with the external world, isolate, plug insertion socket or while pulling away socket, being electrically connected to, contact connects or the moment of separation is in off-position, so just avoid the generation of electric spark, thereby reached the effect of intrinsic safe explosion-proof.
The accompanying drawing explanation
The connecting circuit schematic diagram of a certain contact that Fig. 1 is socket.
Fig. 2 is the plug schematic diagram.
State schematic diagram when Fig. 3 is plug insertion socket.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
The connecting circuit schematic diagram of a certain contact that Fig. 1 is socket.101 is jack housing, in shell, comprises: socket contact sheet 105, light-sensitive device 104, electronic switch 108, insulated conductor winding 111, tongue tube 112, power input line 113, light source 103.Comprise input lead-in wire 102, output lead-in wire 107,110, contact, contact 109 in tongue tube 112.106 for connecting wire, is used for connecting output lead-in wire 107 and the socket contact sheet 105 of tongue tube.When inserting without plug, the light of light source 103 is radiated on light-sensitive device 104, and electronic switch 108 is in off-state, insulated conductor winding 111 no currents pass through, tongue tube 112 is in open-circuit condition, and contact 110He contact 109 is in separated position, and socket contact sheet 105 is in without the Denso state.
Further, for anti-interference, light source adopts light modulated, and light source is luminous by modulators modulate, and the photosignal that light-sensitive device is accepted simultaneously is by corresponding demodulator demodulation.
Fig. 2 is the plug schematic diagram.201 is plug body, and 202 is the plug lead wire end, and 203 is header contact.
State schematic diagram when Fig. 3 is plug insertion socket.When plug insertion socket, when header contact 203 contacts with socket contact sheet 105, because light source 103 light are radiated on light-sensitive device 104, tongue tube 112 is in open-circuit condition, nothing electricity on socket contact sheet 105, so can not come in contact electric spark, insertion along with plug, now header contact 203 contacts with socket contact sheet 105 is stable, when header contact 203 covers the light of light source 103, light-sensitive device 104 is in the unglazed state that shines, electronic switch 108 is in channel status, insulated conductor winding 111 has electric current to pass through, tongue tube 112 is in channel status, be that 110He contact 109, contact is in contact condition, socket contact sheet 105 is in energising dress state.When plug pulls away socket, along with header contact is avoided the light of light source 103, light-sensitive device 104 is in the illumination state, electronic switch 108 is in off-state, insulated conductor winding 111 no currents pass through, and tongue tube 112 is in open-circuit condition, and contact 110He contact 109 is in separated position, socket contact sheet 105, in without the Denso state, can not produce electric spark like this when socket contact sheet 105 separates with header contact 203 yet.
Claims (3)
1. an Explosionproof socket, comprise socket contact sheet, it is characterized in that: at least one group of socket contact sheet is connected with tongue tube one end, the tongue tube other end is connected with power input line, the tongue tube periphery arranges the insulated conductor winding that can produce magnetic field, the current switching of insulated conductor winding is controlled by electronic switch, and electronic switch is controlled by light-sensitive device;
One light source irradiation light-sensitive device is arranged while inserting without plug, and light-sensitive device is controlled electronic switch and is disconnected the insulated conductor winding current, and tongue tube is in off-state;
While having plug to insert, plug stop light source irradiation light-sensitive device, light-sensitive device is controlled electronic switch and is connected the insulated conductor winding current, and tongue tube is in on-state.
2. a kind of Explosionproof socket according to claim 1, is characterized in that: described light source employing LED light source.
3. a kind of Explosionproof socket according to claim 2 is characterized in that: described light source adopts light modulated, and light source is luminous by modulators modulate, and the photosignal that light-sensitive device is accepted simultaneously is by corresponding demodulator demodulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310434249.9A CN103500902A (en) | 2013-09-23 | 2013-09-23 | Explosion-proof socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310434249.9A CN103500902A (en) | 2013-09-23 | 2013-09-23 | Explosion-proof socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103500902A true CN103500902A (en) | 2014-01-08 |
Family
ID=49866084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310434249.9A Pending CN103500902A (en) | 2013-09-23 | 2013-09-23 | Explosion-proof socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103500902A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161931A (en) * | 2015-10-13 | 2015-12-16 | 珠海格力电器股份有限公司 | Safety socket with photosensitive element |
| CN105990769A (en) * | 2015-01-30 | 2016-10-05 | 胜德国际研发股份有限公司 | Power socket |
| CN111812554A (en) * | 2020-07-24 | 2020-10-23 | 上海星融汽车科技有限公司 | On-board diagnostic (OBD) interface plug-pull state detection device based on photoresistor and detection method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6223077U (en) * | 1985-07-26 | 1987-02-12 | ||
| JPS63195496U (en) * | 1987-05-30 | 1988-12-15 | ||
| CN2100039U (en) * | 1991-06-07 | 1992-03-25 | 陈江辉 | Safety socket |
| CH680960A5 (en) * | 1989-09-22 | 1992-12-15 | Marry Saqr Majed El | Wall mounted power outlet socket - includes reed switch controlling live socket supply activated by magnet in plug |
| CN2922196Y (en) * | 2006-06-30 | 2007-07-11 | 胡志荣 | Mating type safe power supply socket plug |
| CN101055959A (en) * | 2006-04-14 | 2007-10-17 | 李建兴 | Current overload magnetic spring relay and current overload warning jack including the same |
| CN201878114U (en) * | 2010-12-13 | 2011-06-22 | 周艳 | Photosensitive switch |
| CN202817411U (en) * | 2012-09-28 | 2013-03-20 | 董长富 | Multifunctional no-voltage safety power-saving socket |
| CN203434395U (en) * | 2013-09-23 | 2014-02-12 | 金永革 | Anti-explosion socket |
-
2013
- 2013-09-23 CN CN201310434249.9A patent/CN103500902A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6223077U (en) * | 1985-07-26 | 1987-02-12 | ||
| JPS63195496U (en) * | 1987-05-30 | 1988-12-15 | ||
| CH680960A5 (en) * | 1989-09-22 | 1992-12-15 | Marry Saqr Majed El | Wall mounted power outlet socket - includes reed switch controlling live socket supply activated by magnet in plug |
| CN2100039U (en) * | 1991-06-07 | 1992-03-25 | 陈江辉 | Safety socket |
| CN101055959A (en) * | 2006-04-14 | 2007-10-17 | 李建兴 | Current overload magnetic spring relay and current overload warning jack including the same |
| CN2922196Y (en) * | 2006-06-30 | 2007-07-11 | 胡志荣 | Mating type safe power supply socket plug |
| CN201878114U (en) * | 2010-12-13 | 2011-06-22 | 周艳 | Photosensitive switch |
| CN202817411U (en) * | 2012-09-28 | 2013-03-20 | 董长富 | Multifunctional no-voltage safety power-saving socket |
| CN203434395U (en) * | 2013-09-23 | 2014-02-12 | 金永革 | Anti-explosion socket |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105990769A (en) * | 2015-01-30 | 2016-10-05 | 胜德国际研发股份有限公司 | Power socket |
| US9548574B2 (en) | 2015-01-30 | 2017-01-17 | Powertech Industrial Co., Ltd. | Power socket with photo-interrupter |
| CN105990769B (en) * | 2015-01-30 | 2019-04-05 | 胜德国际研发股份有限公司 | Power socket |
| CN105161931A (en) * | 2015-10-13 | 2015-12-16 | 珠海格力电器股份有限公司 | Safety socket with photosensitive element |
| CN111812554A (en) * | 2020-07-24 | 2020-10-23 | 上海星融汽车科技有限公司 | On-board diagnostic (OBD) interface plug-pull state detection device based on photoresistor and detection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140108 |