CN2753010Y - Power socket with overcurrent and short circuit protective device - Google Patents

Power socket with overcurrent and short circuit protective device Download PDF

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Publication number
CN2753010Y
CN2753010Y CN 200420095692 CN200420095692U CN2753010Y CN 2753010 Y CN2753010 Y CN 2753010Y CN 200420095692 CN200420095692 CN 200420095692 CN 200420095692 U CN200420095692 U CN 200420095692U CN 2753010 Y CN2753010 Y CN 2753010Y
Authority
CN
China
Prior art keywords
socket
relay
current
coil
switch
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 - Fee Related
Application number
CN 200420095692
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Chinese (zh)
Inventor
周启华
Original Assignee
周启华
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 周启华 filed Critical 周启华
Priority to CN 200420095692 priority Critical patent/CN2753010Y/en
Application granted granted Critical
Publication of CN2753010Y publication Critical patent/CN2753010Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a power socket with an over current and short-circuit protection device, which belongs to the electric sockets. A panel of the power socket is provided with at least one socket, and the over current and short-circuit protection device is arranged between socket electrodes and power lines, wherein the protection device comprises a current induction relay in which a current induction coil and a dry reed pipe relay switch are arranged. The current induction coil is connected in series between the socket electrodes and the power lines, and the relay switch can be controlled by over heavy current in the current induction coil to disconnect the socket electrodes with the power lines. The current induction relay of the utility model has the advantages of small volume and high sensitivity, and the power supply of an electrical appliance can be quickly cut off when the faults of over current, short circuit and electrical leakage happen so as to effectively protect the electrical appliance and personal safety. Additionally, the wiring connection of the utility model is as convenient as a common socket, and an alarm and reset circuit is also arranged, so that the socket can be used more safely and conveniently.

Description

A kind of supply socket that has overcurrent, short-circuit protection
Technical field
The utility model relates to electrical socket, particularly a kind of supply socket that has overcurrent, short-circuit protection.
Background technology
Electrical socket widely uses in routine work, life.Reasons such as, short circuit excessive owing to the electric current of electrical appliance, electric leakage usually make electrical equipment cause damage, even jeopardize personal safety.Common socket is not to be with protective device, is to add fuse or thermal relay protective device in circuit for addressing the above problem method commonly used.Its shortcoming is additionally to increase circuit, and numerous and diverse inconvenience is installed, and changes fuse, and troublesome maintenance is also dangerous.
The utility model content
The purpose of this utility model is the above-mentioned defective that overcomes existing electrical socket, designs a kind of novel socket easy to use, safe, that is: a kind of supply socket that has overcurrent, short-circuit protection.
The technical solution of the utility model is as follows:
A kind of supply socket that has overcurrent, short-circuit protection; it has a panel; at least one socket is installed on the panel; be provided with overcurrent, short-circuit protection between socket electrode and the power line; it is characterized in that: described protective device contains an induction by current relay; be provided with an induction by current coil and a relay switch in this induction by current relay; the induction by current coil directly or indirectly is connected between electrode and the power line, and relay switch is serially connected between socket electrode and the power line and is subjected to the Current Control of induction by current coil.
Described relay switch is a dry-reed tube switch, and the induction by current coil is on the outer wall of dry-reed tube switch, and when the induction by current coil had the big function of current, dry-reed tube switch made power line and the disconnection of socket electrode by relay control.
The structure of described induction by current relay is: be glued with a high-temperature insulation sleeve pipe on the dry-reed tube switch outer wall, described coil is on this insulating sleeve, and other has a shell that the three is sealed in therebetween, the filling fire proofing that completely insulate in the gap therein.
Further design is also to be connected to an overcurrent or short-circuit alarming indicator light on the described relay switch.
The utility model is owing to be provided with little, the highly sensitive induction by current relay of volume in socket; when faults such as circuit generation overcurrent, short circuit, electric leakage; relay can cut off being connected of socket (electrical appliance) and power supply rapidly; thereby effectively protect electrical appliance and personal safety; its use is the same with common socket; easy-to-connect also can increase and report to the police and reset circuit, uses safer, convenient.
Description of drawings
Fig. 1 is the panel structure schematic diagram of the utility model panel;
Fig. 2 is the structural representation of induction by current relay in the utility model;
Fig. 3 is specific embodiment circuit theory diagrams of the present utility model.
Embodiment
A kind of supply socket that has overcurrent, short-circuit protection as depicted in figs. 1 and 2, it has a panel 1, and the back side of panel 1 is provided with two sockets 2, according to routine, a pair of socket electrode 3 (not including earth terminal) is arranged in each socket 2.Between socket electrode 3 and power supply 8, be provided with overcurrent, short-circuit protection.Overcurrent, short-circuit protection comprise an induction by current relay 5, and an induction by current coil 51 and a relay switch are arranged in the induction by current relay 5.Induction by current coil 51 is serially connected between socket electrode 3 and the power line 8, and relay switch is subjected to the super-high-current control in the induction by current coil 51 that socket electrode 3 and power line 8 are disconnected.
Relay switch is dry-reed tube switch 53 in the present embodiment.
The structure of induction by current relay 5 is as shown in Figure 2: be glued with a high-temperature insulation sleeve pipe 54 on the outer wall of dry-reed tube switch 53, induction by current coil 51 is on this insulating sleeve 54, other has a shell 55 that the three is sealed in therebetween, betwixt the filling fire proofing 52 that completely insulate in the crack.When in current coil 51, having overcurrent or short circuit current to pass through,, its formation the action of a magnetic field makes the electrical appliance 9 and power supply 8 disconnections that is inserted on the socket 2 thereby driving relays 6 (in conjunction with Fig. 3) in dry-reed tube switch 53 actions.
As the circuit of a possible embodiments as shown in Figure 3:
Mains switch 4, coil 51, and one group of normally-closed contact 61 of relay 6 and 3 series connection of socket electrode after be connected across on the power supply 8, constituted the major loop of socket to electrical appliance 9 power supplies; Between the series connection node of the series connection node of mains switch 4 and coil 51 and coil 51 and normally-closed contact 61, be parallel with one group of series arm that normally opened contact 62 is formed by dry-reed tube switch 53, alarm lamp 7, normally closed button 10 and relay 6; Relay 6 is connected in parallel between the tie point of the series connection node of dry-reed tube switch 53 and alarm lamp 7 and socket 2 and power supply 8, overcurrent or short circuit current produce magnetic force and make dry-reed tube switch 53 closures in coil 51, relay 6 gets electronic work, and its normally-closed contact 61 disconnects, socket 2 outages; Meanwhile, normally opened contact 62 adhesives, itself and coil 51, button 10, indicator light 7, relay 6 are formed the self-keeping circuit, keep outage, alarm condition, press button 10, then can reset.

Claims (5)

1. one kind has overcurrent; the supply socket of short-circuit protection; it has a panel (1); at least one socket (2) is installed on the panel (1); be provided with overcurrent between socket electrode (3) and the power line (8); short-circuit protection; it is characterized in that: described protective device contains an induction by current relay (5); be provided with an induction by current coil (51) and a relay switch in this induction by current relay (5); induction by current coil (51) directly or indirectly is connected between electrode (3) and the power line (8), and relay switch is serially connected between electrode (3) and the power line (8) and is subjected to the Current Control of induction by current coil (51).
2. supply socket according to claim 1 is characterized in that: described relay switch is dry-reed tube switch (53), and induction by current coil (51) is on the outer wall of dry-reed tube switch (53).
3. supply socket according to claim 1 and 2, the structure that it is characterized in that described induction by current relay (5) is: be glued with a high-temperature insulation sleeve pipe (54) on dry-reed tube switch (53) outer wall, described coil (51) is on this insulating sleeve (54), other has a shell (55) that the three is sealed in therebetween, the filling fire proofing (52) that completely insulate in the gap therein.
4. according to claim 1,2 or 3 described supply sockets, it is characterized in that: also be connected to an overcurrent or short-circuit alarming indicator light (7) on the described relay switch.
5. according to claim 1 or 4 described supply sockets, it is characterized in that: power line (8) is serially connected with mains switch (4), be connected across on the power supply (8) after electrode (3) series connection of mains switch (4), coil (51), the one group of normally-closed contact (61) that reaches relay (6) and socket (2), constituted the major loop of socket to electrical appliance (9) power supply; Between the series connection node of the series connection node of mains switch (4) and coil (51) and coil (51) and normally-closed contact (61), be parallel with the series arm of forming by one group of normally opened contact (62) of dry-reed tube switch (53), alarm lamp (7), normally closed button (10) and relay (6); Described relay (6) is connected in parallel between the tie point of the series connection node of dry-reed tube switch (53) and alarm lamp (7) and electrode (3) and power supply (8), overcurrent or short circuit current produce magnetic force and make dry-reed tube switch (53) closure in coil (51), relay (6) gets electronic work, its normally-closed contact (61) disconnects, socket (2) outage; Meanwhile, normally opened contact (62) adhesive, itself and coil (51), button (10), indicator light (7), relay (6) are formed the self-keeping circuit, keep outage, alarm condition, press button (10), can make socket (2) must reply the position by cable.
CN 200420095692 2004-11-26 2004-11-26 Power socket with overcurrent and short circuit protective device Expired - Fee Related CN2753010Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200420095692 CN2753010Y (en) 2004-11-26 2004-11-26 Power socket with overcurrent and short circuit protective device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200420095692 CN2753010Y (en) 2004-11-26 2004-11-26 Power socket with overcurrent and short circuit protective device

Publications (1)

Publication Number Publication Date
CN2753010Y true CN2753010Y (en) 2006-01-18

Family

ID=35914420

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200420095692 Expired - Fee Related CN2753010Y (en) 2004-11-26 2004-11-26 Power socket with overcurrent and short circuit protective device

Country Status (1)

Country Link
CN (1) CN2753010Y (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102148114A (en) * 2010-12-08 2011-08-10 惠州市畅想星辰电器有限公司 Multifunctional air switch
CN104092054A (en) * 2014-07-20 2014-10-08 郑州中智电子科技有限公司 Safety plug and socket
CN108429242A (en) * 2018-03-31 2018-08-21 苏州风中智能科技有限公司 A kind of protector of electronic component
CN109917162A (en) * 2019-03-25 2019-06-21 昆山龙腾光电有限公司 A kind of power protecting circuit and test device
CN111799612A (en) * 2020-07-22 2020-10-20 李玉凤 Short-circuit protection socket with visual state

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102148114A (en) * 2010-12-08 2011-08-10 惠州市畅想星辰电器有限公司 Multifunctional air switch
CN102148114B (en) * 2010-12-08 2013-03-27 惠州市畅想星辰电器有限公司 Multifunctional air switch
CN104092054A (en) * 2014-07-20 2014-10-08 郑州中智电子科技有限公司 Safety plug and socket
CN108429242A (en) * 2018-03-31 2018-08-21 苏州风中智能科技有限公司 A kind of protector of electronic component
CN109917162A (en) * 2019-03-25 2019-06-21 昆山龙腾光电有限公司 A kind of power protecting circuit and test device
CN109917162B (en) * 2019-03-25 2021-08-06 昆山龙腾光电股份有限公司 Power supply protection circuit and testing device
CN111799612A (en) * 2020-07-22 2020-10-20 李玉凤 Short-circuit protection socket with visual state
CN111799612B (en) * 2020-07-22 2021-12-07 台州市振新金属制品有限公司 Short-circuit protection socket with visual state

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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