CN203377449U

CN203377449U - Duel temperature regulation safety socket

Info

Publication number: CN203377449U
Application number: CN201320283626.9U
Authority: CN
Inventors: 张红亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-22
Filing date: 2013-05-22
Publication date: 2014-01-01
Anticipated expiration: 2023-05-22

Abstract

The utility model relates to a duel temperature regulation safety socket, comprising a socket (1), a normally open temperature switch (2), a resistor (3), a normally closed temperature switch (4) and a terminal (5). The safety socket is characterized in that the normally open temperature switch (2) and the resistor (3) comprise a switch circuit simulating electric leakage between the phase wire and the ground wire of the socket (1), and the normally closed temperature switch (4) is in series connection to comprise a switch circuit, wherein one end of the normally closed temperature switch (4) is connected to the zero line connection terminal of the socket (1) and the other end is connected to the additional terminal (5). When the temperature of the socket rises until the normally open temperature switch (2) is closed, the electric leakage switch strips, and power is off, temperature is limited, the socket and the whole circuit are protected; and when the temperature of the socket rises until the normally closed temperature switch (4) is open, the socket loses voltage, power is off, the socket is protected, and dual protection is formed through the two temperature switches.

Description

The safety socket of dual limit temperature

Affiliated technical field

The utility model relates to electrical accessorie, specifically a kind of safety socket of dual limit temperature.

Background technology

Appliance socket is one of electric equipment accessory commonly used, and the appliance power that socket connects varies, and the electrical equipment of use not necessarily carries overload and short-circuit protection, so socket should be first of the safety utilization of electric power electrical accessorie of checking on.But common safety socket is mainly to rely on the configuration fuse, and the selection of fuse, electrical equipment for the electric current that varies in size is difficult to take into account, fuse selects thick, if overload occurs the electrical equipment of little electric current, just is difficult to play safety effect, and a lot of fire incidents occur thus; Fuse selects thin, and the electrical equipment of large electric current just has been not suitable for, and fuse always fuses; Also have to run into excess load and use socket, the socket of routine 10A is used the electrical equipment of 15A electric current, often just change thicker fuse, and this is also one of reason occurred appliance fire.Because it is substantially bigger than normal to set fuse numerical value, the socket arranged without any protection just appears, be unsafe certainly.When appearring in electrical equipment, overload or short circuit can produce heating, or because loose contact also can cause heating, along with the accumulation of time will cause high temperature and easy circuit for generating fire.The burning-point that limit temperature prevents from being elevated to object is vital, for this reason, has the socket of serviceability temperature fuse as protection, still, after Thermal Cutoffs fusing, changes trouble, often needs to have the personnel of special general knowledge just can carry out.Also have the protection socket that temperature sensor connects the multiple auxiliary equipment such as relay, the design comparison complexity, volume is large, and cost is higher, is difficult to be widely used.People just hope to have and a kind ofly can reset as air switch, and the little cost of volume is low, and socket that again can limit temperature is as safety socket.

Summary of the invention

For solving problem presented above, the utility model provides a kind of socket when occurrence temperature surpasses limits value, can cause the electric leakage switch tripping outage of using circuit, socket self can cut off the power supply and be protected, effect with dual security protection, the technical scheme that safety socket adopts is: scheme one, on the socket of application, be provided with the earth connection seat, be mounted with and often open temperature switch near socket phase-connecting wire pin, often opening temperature switch fixes with mechanical system or bonding mode, often open a gang socket earth connection seat of temperature switch wiring, the resistance of a simulation electrical leakage of other end serial connection of temperature switch wiring, the resistance other end is connected on the phase line (live line) junction block of socket, often drive the switching circuit that temperature switch and resistance form a simulation electric leakage, when the socket temperature is elevated to the closing value of often opening temperature switch, the resistance of switch connection simulation electrical leakage, the simulation electric leakage occurs, use the electric leakage switch tripping outage of circuit, play the safety of limit temperature protection socket and whole use circuit.

Scheme two; near socket zero line junction block; settle a normally closed temperature switch that is greater than the socket current value; normally closed temperature switch wiring one end is connected to the zero line junction block, and the normally closed temperature switch wiring other end is received on the auxiliary connection post, and the auxiliary connection post is fixed with mechanical system or bonding mode; zero line power line inlet wire is changed on binding post; when the socket temperature is elevated to the value of opening of normally closed temperature switch, the outage of socket decompression, play the safeguard protection effect.

Three-phase socket adopts the utility model application, for preventing phase-deficient operation, can not adopt the normally closed temperature switch set-up mode of scheme two, can only take the set-up mode of scheme one, at any two-phase line position, the switching circuit that two-way is often opened the simulation electric leakage of temperature switch and resistance formation is set.

The utility model simplicity of design, part is few, and cost is low, is applicable to the installing additional or reequiping of multiple socket, thus the fail safe that improves socket.

the accompanying drawing explanation

Fig. 1 is this practical invention schematic diagram

Embodiment

Below in conjunction with accompanying drawing, the utility model is provided and further illustrates: in Fig. 1, described safety socket, to be provided with the earth connection seat on the socket of application, outlet ground line seat must connect ground wire, socket should be placed in the circuit that uses leakage switch, and this example is usingd and had single-phase three-wire socket with the earth connection seat now as application, scheme one, be mounted with and often open temperature switch near socket phase-connecting wire pin, this example is often opened temperature switch and is fixed with bonding mode, often open a gang socket earth connection seat of temperature switch wiring, often open the resistance of a simulation electrical leakage of other end serial connection of temperature switch wiring, the resistance other end is connected on the phase line (live line) junction block of socket, often drive the switching circuit that temperature switch and resistance form a simulation electric leakage, when the socket temperature is elevated to the closing value of often opening temperature switch, (closing value is selected to be greater than the highest temperature more than 10 ℃, prevent misoperation, lower than 65 ℃, be vi have high safety), the resistance of switch connection simulation electrical leakage, the simulation electric leakage occurs, cause the electric leakage switch tripping outage with circuit, reach the safety of limit temperature protection socket and whole use circuit.

Scheme two; near socket zero line junction block; settle a normally closed temperature switch that is greater than the socket current value; one end of normally closed temperature switch wiring connects the zero line junction block; the normally closed temperature switch wiring other end is received on the auxiliary connection post; the auxiliary connection post is fixed with mechanical system or bonding mode; the inlet wire of zero line is changed on binding post; when the socket temperature is elevated to the value of opening of normally closed temperature switch, (value of opening is selected to be greater than the highest temperature more than 10 ℃; prevent misoperation; lower than 65 ℃, be vi have high safety), the outage of socket decompression, play the safeguard protection effect.Scheme two is supplementary safeguard measures malfunctioning to the leakage switch of scheme one or that do not arrange.

Three-phase socket adopts the utility model application; for preventing phase-deficient operation; can not adopt the normally closed temperature switch set-up mode of scheme two; can only take the set-up mode of scheme one; at any two-phase line position; two-way is set and often opens temperature switch and resistance, form the switching circuit of two-way simulation electric leakage, reach equally the protective effect of dual limit temperature.

After all temperature switch actions, get rid of action reason, treat that temperature naturally cools to below the protection value, temperature switch automatically resets, and it is normal that socket and circuit recover.As be badly in need of the reset temperature switch, and can be with forcing cooling method (method one is to blow a cold wind over) cooling, just use that can restore circuit.

Claims

1. the safety socket of a dual limit temperature, include, socket (1), often open temperature switch (2), resistance (3), normally closed temperature switch (4), binding post (5) is characterized in that: often drive the switching circuit that temperature switch (2) and resistance (3) form a simulation electric leakage; Normally closed temperature switch (4) is to be connected in series mode, and one terminates on the zero line junction block of socket (1), and it is upper that the other end is received auxiliary connection post (5), forms switching circuit.