CN201243139Y - Overload overheating safety socket device - Google Patents

Abstract

An overload overheating safety socket device comprises an overload thermal dynamic metal sheet contact switch, wherein the overload thermal dynamic metal sheet contact switch is arranged in the middle of the positive electrode and the negative electrode of a socket conductive elastic sheet or at a proper position, or the socket conductive elastic sheet can transfer heat and radiate heat to reach a position, or in the socket or in a socket shell, and when overload or poor contact of the socket conductive elastic sheet generates high heat, the overload thermal dynamic metal sheet contact switch automatically trips to cut off a power supply; furthermore, an insulating heat conductor is arranged at a proper position of the socket conductive elastic sheet for heat transfer or is transferred to a load element or a temperature switch or a temperature sensing element through radiation heat transfer, and the power supply is cut off when the set temperature is reached; the relay is connected in series with the input end or the output end of the overload thermal sensitive metal sheet contact switch. By applying the utility model, the overload heat actuated metal sheet contact switch can automatically trip to cut off the power supply under the conditions of poor contact of the socket conductive elastic sheet or short circuit or overload of the lead when a user uses electricity; and a power indicator lamp or an alarm can be arranged, and the relay can cut off the power supply within millisecond.

Description

An overload and overheating safety socket device

technical field

The utility model relates to a socket, in particular to an overload and overheating safety socket device.

Background technique

At present, the use of electricity is very common. Due to the great convenience of electricity supply, electrical products use electricity as the power source. In today's society, the popularity of electricity has become one of the important indicators to measure the country's economic development.

But while electricity or power supply is convenient, there is also danger. At present, in electrical products, the socket is an essential electrical component, and the socket may generate high heat due to the poor contact of the conductive shrapnel of the socket during the power supply. If the socket cannot automatically cut off the power supply, it is easy to cause accidents, such as The wires caught fire and the product burned.

Utility model content

In the utility model, a load element, a temperature switch or a temperature sensing element is installed at a proper position of the conductive shrapnel of the socket, and the utility model is selected and used in conjunction with the socket. When the socket is not in good contact and generates high heat, the load element or temperature switch or temperature sensing element or any combination of overload and overheating elements will sense heat to cut off the power supply; in case of short circuit, the relay will cut off the power supply, and in case of overload, the load element will cut off the power supply according to the device's element characteristics. Adopting the overload and overheating safety socket device of the utility model can cut off the power supply within milliseconds when the device is short-circuited and cut off the power supply when it is overloaded, which can prevent accidents such as wires going off fire and products burning.

An overload and overheating safety socket device, the utility model includes an overload thermal movable metal sheet contact switch, which is installed in the middle of the two poles of the conductive shrapnel of the socket, or at an appropriate position, or the position where the conductive shrapnel of the socket can transfer heat and radiate heat, or in the socket or socket housing. When the socket is overloaded with electricity, the overload thermal moving metal sheet contact switch automatically trips to cut off the power; if the socket conductive shrapnel is not in good contact, high heat will be generated during the power consumption process, and the overload thermal moving metal sheet will automatically trip due to heat, thus cutting off the power supply. power supply. Install an insulating heat conductor at the appropriate position of the conductive shrapnel of the socket to conduct heat or transfer heat to the load element or temperature switch or temperature sensing element through radiation, so that the load element, temperature switch, temperature sensing element or any combination of overload and overheating elements reaches the set temperature , so as to cut off the power supply; the relay is connected in series to the front input terminal of the thermal overload contact switch, or to the output terminal of the overload thermal contact switch. When the socket wire is short-circuited during use, the relay can cut off the power supply within milliseconds. The utility model ensures that when the user is using electricity, when the socket conductive shrapnel is in poor contact or overloaded electricity produces high heat or overloaded electricity, the overload thermal metal The chip contact switch can automatically trip and cut off the power; or when the socket is in use and the wire is short-circuited, the relay can cut off the power within milliseconds. Adopting the overload and overheating safety socket device of the utility model, when the device is short-circuited, the power supply can be cut off within milliseconds, and the power supply can be cut off when the overload is overloaded, which can prevent accidents such as wires going off fire and products burning.

Description of drawings

FIG. 1A is a top view structural schematic diagram of an overloaded thermal metal sheet or a temperature switch or a temperature sensing element in the socket of the present invention.

FIG. 1B is a schematic cross-sectional structure diagram of an overloaded thermal metal sheet or a temperature switch or a temperature sensing element in the socket of the present invention.

FIG. 1C is a side view schematic diagram of the utility model socket provided with an overload thermal metal sheet contact switch or a temperature switch or a temperature sensing element.

Fig. 1D is a side view schematic diagram of the utility model socket with a plug insert connected in series with an overload thermal metal sheet contact switch or a temperature switch or a temperature sensing element.

Fig. 2A is a structural schematic diagram of an overload thermal metal sheet contact switch or a temperature switch or a temperature sensing element in the middle or appropriate position of the plug insert of the present invention.

Fig. 2B is a structural schematic diagram of the utility model plug-insert contact device, which outputs power from an overload thermal contact switch or a temperature switch or a temperature sensing element.

Fig. 3A is a schematic diagram of the first structural diagram of the socket overload thermal metal sheet contact switch device of the present invention at the appropriate position of the socket conductive shrapnel, when the contact is poor during power consumption and high heat is generated, the overload thermal metal sheet switch trips and cuts off the power supply.

Fig. 3B is a schematic diagram of the second structure of the socket overload thermal metal sheet contact switch device of the present invention at the appropriate position of the socket conductive shrapnel. When the contact is poor during power consumption and high heat is generated, the overload thermal metal sheet switch trips and cuts off the power supply.

Fig. 3C is a schematic diagram of the third structure of the socket overload thermal metal sheet contact switch device of the present invention at the appropriate position of the socket conductive shrapnel. When the contact is poor during power consumption and high heat is generated, the overload thermal movable metal sheet switch trips and cuts off the power supply.

Figure 3D is a temperature switch or a thermistor or a temperature fuse or a reset fuse or a temperature sensing element or a thermal metal sheet switch device of the utility model in front of the first conductive shrapnel of the socket and the second conductive shrapnel of the socket, and the power supply uses a heat conductor or a wire Schematic diagram of heat transfer to overload thermal sheet metal contact switch.

Fig. 4A is a schematic diagram of the structure of the overload thermal metal switch of the present invention to turn on and cut off the power supply.

Fig. 4B is a top view structure schematic diagram of the overload thermal metal sheet switch of the present invention turning on and cutting off the power supply.

FIG. 5A is a schematic diagram of a top view of the first structure of the overload thermal metal sheet contact switch of the present invention provided with positioning points for conducting and cutting off the power supply.

Fig. 5B is a schematic diagram of the second structure of the utility model overload thermal metal sheet contact switch provided with a positioning point for conducting and cutting off the power supply.

Fig. 6 is a top view structure schematic diagram of the utility model overload thermal metal sheet contact switch provided with positioning bumps to cut off the power supply.

Fig. 7 is a schematic diagram of the structure of the overload thermal metal sheet contact switch and the plug insert of the utility model provided with an insulating heat conductor, through which heat is conducted to a temperature switch or a temperature sensing element.

Fig. 8 is a schematic diagram of the structure of the utility model relay, overload thermal metal sheet contact switch and plug insert provided with an insulating heat conductor, through which heat is conducted to the temperature switch or temperature sensing element.

Fig. 9 is a structural schematic diagram of the combination of the relay of the present invention and the thermal overload contact switch of the metal sheet.

Explanation of symbols in the attached drawings

101 Thermal switch structure 102 Shell

103 socket 104 power output conductive sheet

105 Power indicator light or warning device 106 Thermal metal sheet contact cylinder

107 Overload thermal metal sheet 108 Slide switch or key switch

109 Thermal metal sheet contact recovery cylinder 110 Switch fixing seat

111 Switch frame 112 Thermal conductive metal sheet

113 Power input conductive sheet contact 114 Power input fixing screw

115 power plug 116 power input terminal

117 Fixing screw for thermal moving piece structure 118 Positioning bump for switch

119 switch positioning plate 120 central axis

121 shrapnel fixing seat 122 socket hole

123 socket first conductive shrapnel 124 socket conductive shrapnel fixing screw

125 temperature switch or thermistor or thermal fuse or reset fuse or temperature sensing element or thermal sheet metal switch

126 insulating heat conductor or insulating heat conducting silica gel or insulating heat conducting material

127 The second conductive shrapnel of the socket 128 The first coil of the electromagnet

129 relay 130 relay power input contact

131 Relay power output contact 132 Second coil of electromagnet

133 socket base

135 Conduction positioning point 136 Power cut-off button

137 start button 138 maintain contact point

139 The first plug blade 140 The second plug blade

141 Thermal switch reply button 142 Relay movable piece

143 push column

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings and examples.

An overload and overheating safety socket device, the utility model includes an overload thermal movable metal sheet contact switch, which is installed in the middle of the two electrodes of the conductive shrapnel of the socket, or at an appropriate position, or the position where the conductive shrapnel of the socket can transfer heat and radiate heat, or the socket inner or socket housing. When the socket is overloaded with electricity, the overload thermal metal sheet contact switch will automatically trip and cut off the power supply; if the socket conductive shrapnel is not in good contact, high heat will be generated during the power consumption process, and the overload thermal metal sheet contact switch will automatically trip due to heat Take off to cut off the power supply. Install an insulating heat conductor at the appropriate position of the conductive shrapnel of the socket, and transfer heat to the load element, temperature switch, or temperature sensing element through heat conduction or radiation heat, so that the load element, temperature switch, or temperature sensing element can sense heat to reach the set temperature, thereby Cut off the power supply; the power supply of the relay electromagnetic device is connected in series with the thermal overload metal sheet or the temperature sensing element. When the conductive shrapnel of the socket is in poor contact or overloaded with electricity, high heat will be generated, and the contact switch of the overload thermal movable metal sheet will automatically trip when it reaches the set temperature. Cut off the power to the relay solenoid. The utility model guarantees that when the user is using electricity, the socket conductive shrapnel is poorly contacted to generate high heat or the wire is short-circuited or overloaded, and the contact switch of the overloaded thermally movable metal sheet automatically trips, thereby cutting off the power supply, and the relay can cut off the power supply within milliseconds.

An overload and overheating safety socket device, the utility model includes an overload thermally movable metal sheet contact switch, when the electricity is overloaded, the overload thermally movable metal sheet contact switch automatically jumps off and cuts off the power supply; the conductive shrapnel of the socket is in poor contact or overloaded electricity produces high heat, At the appropriate position of the conductive shrapnel of the socket, use an insulating heat conductor to transfer heat or radiate heat to the load element or temperature switch or temperature sensing element, thereby cutting off the power supply; the relay is connected in series to the front input end of the overload thermal metal sheet contact switch, or It is connected in series with the output end of the thermal overload contact switch. When the socket wire is short-circuited during use or the socket conductive shrapnel is in poor contact to generate high heat, the heat transfer or radiation heat of the heat conductor reaches the set temperature, the load element or temperature switch or temperature sensing element cuts off the power supply of the relay solenoid, and the relay can operate within milliseconds. Cut off the power supply, relay, overload metal thermal contact switch and load element or temperature switch or temperature sensing element installed at the appropriate position of the socket conductive shrapnel are used in conjunction with the socket element. An overload and overheat safety socket device of the utility model includes: a thermal switch structure 101, a casing 102, a socket 103, a power output conductive sheet 104, a power indicator light or a warning device 105, a thermal metal sheet contact cylinder 106, an overload thermal Movable metal sheet 107, slide switch or key switch 108, thermal movable metal sheet contact return cylinder 109, switch fixing seat 110, switch frame 111, thermal movable metal sheet conductive contact 112, power input conductive sheet contact 113, power input fixed Screw 114, power plug 115, power input terminal 116, heat plate structure fixing screw 117, switch positioning bump 118, switch positioning plate 119, central shaft 120, shrapnel fixing seat 121, socket hole 122, socket first conductive shrapnel 123 , socket conductive shrapnel fixing screw 124, temperature switch or thermistor or temperature fuse or reset fuse or temperature sensing element or thermal metal sheet switch 125, insulating heat conductor or insulating heat conducting silica gel or insulating heat conducting material 126, second conductive socket Shrapnel 127, first solenoid coil 128, relay 129, relay power input contact 130, relay power output contact 131, electromagnetic second coil 132, socket base 133, power cut-off positioning point 134, conduction positioning point 135, power cut-off Button 136 , start button 137 , maintenance contact point 138 , first plug insert 139 , second plug insert 140 , thermal switch return button 141 , relay movable piece 142 and push post 143 . The utility model is composed of the above-mentioned elements, which can cut off the power supply within milliseconds in case of short circuit, and cut off the power supply when overloaded, so as to prevent accidents, such as wires going off fire and products burning.

FIG. 1A is a top view structural schematic diagram of an overloaded thermal metal sheet or a temperature switch or a temperature sensing element in the socket of the present invention.

The utility model socket 103 is a socket that includes at least one positive and negative pole hole or a porous socket, at least one conductive shrapnel device in each positive and negative pole hole socket, or one or more suitable elements connected in series on the porous socket conductive shrapnel, suitable Components include overload thermal sheet metal contact switches or temperature switches or resettable fuses or temperature sensing elements or any combination of overload and overheating elements. The socket 103 is provided with a first plug insert 139 and a second plug insert 140, the first plug insert 139 is directly input into the socket second conductive shrapnel 127, and the second plug insert 140 is connected in series with the overload thermal metal sheet 107 (in the figure not shown), contact the power input conductive sheet contact 113 (not shown) through the thermally movable metal sheet conductive contact 112 (not shown in the figure), and the power output conductive sheet 104 is connected to the first socket in the socket 103 Conductive shrapnel 123. The overload thermal metal sheet 107 and the thermal metal sheet conductive contact 112 can form an overload thermal metal sheet contact switch. In practical applications, the overload thermal sheet metal contact switch can also be a temperature switch or a temperature sensing element or an overload thermal sheet metal switch or a fuse or a temperature fuse or a positive temperature coefficient thermistor (PTC, Positive Temperature Coefficient Thermistor) reset type fuse , In practical application, it can also be in the process of using electricity, when the overload or the first conductive elastic piece 123 of the socket or the second conductive elastic piece 127 of the socket is in poor contact to generate high heat, it can sense heat, thereby cutting off other components using the power supply. The thermal overload metal plate 107 is installed in the middle of the first plug blade 139 and the second plug blade 140 or in any suitable position in the socket box or the socket shell that can conduct heat or radiate heat.

FIG. 1B is a schematic cross-sectional structure diagram of an overloaded thermal metal sheet or a temperature switch or a temperature sensing element in the socket of the present invention.

Fig. 1B is the sectional view of Fig. 1A, and the utility model socket 103 is to comprise a positive and negative pole hole or porous socket, and the first plug blade 139 is connected to the socket second conductive shrapnel 127 (not shown in the figure), the second plug The insert 140 is connected in series with a temperature switch or a thermistor or a thermal fuse or a reset fuse or a temperature sensing element or a thermal metal switch 125 or an overload thermal metal 107, and the thermal metal conductive contact 112 is connected to the power input conductive contact 113 contacts, the overload thermal moving metal sheet 107 and the thermal moving metal sheet conductive contact 112 form an overload thermal moving metal sheet contact switch. The power output conductive piece 104 is connected to the socket 103 , the first conductive elastic piece 123 of the socket, the shell 102 and the socket base 133 .

FIG. 1C is a side view schematic diagram of the utility model socket provided with an overload thermal metal sheet contact switch or a temperature switch or a temperature sensing element.

The socket 103 (not shown in the figure) is a positive and negative pole hole socket or a multi-hole socket, the first plug blade 139 is connected to the second conductive shrapnel 127 of the socket, and the second plug blade 140 is connected in series with a temperature switch or a thermistor or Thermal fuse or reset fuse or temperature sensing element or thermal metal sheet switch 125 or overload thermal metal sheet 107, thermal metal sheet conductive contact 112 is in contact with power input conductive sheet contact 113, power output conductive sheet 104 is connected to socket 103 1. The first conductive shrapnel 123 of the socket, the shell 102 and the socket base 133. When the socket is overloaded with electricity, or the conductive shrapnel of the socket is in poor contact to generate high heat, the temperature switch or thermistor or thermal fuse or reset fuse or temperature sensing element or heat Moving sheet metal switch 125 trips off, cuts off power supply. To resume power consumption, press the thermal switch recovery button 141 . In practical application, when the conductive shrapnel of the socket is not in good contact and generates high heat, in order to make the temperature switch or thermistor or thermal fuse or reset fuse or temperature sensing element or thermal metal sheet switch 125 jump off and cut off the power more quickly, it can be used in the socket The conductive shrapnel is equipped with an insulating heat conductor or an insulating heat conducting silica gel or an insulating heat conducting material 126 at an appropriate position.

Fig. 1D is a side view schematic diagram of the utility model socket with a plug insert connected in series with an overload thermal metal sheet contact switch or a temperature switch or a temperature sensing element.

The power plug 115 of the utility model, the second plug insert 140 is connected in series with an overload heating element, such as an overload thermal moving metal sheet 107, or a thermistor or a temperature fuse or a reset fuse or a temperature sensing element. The temperature switch is connected in series at the position. When the electricity is overloaded, the overload thermal moving metal sheet 107 or the thermistor or the temperature fuse or the reset fuse or the temperature sensing element will generate heat, and the heat will be transferred or radiated to the temperature switch to reach the set temperature. The temperature switch cuts off the power.

Fig. 2A is a structural schematic diagram of an overload thermal metal sheet contact switch or a temperature switch or a temperature sensing element in the middle or appropriate position of the plug insert of the present invention.

The temperature switch of the power plug 115 of the present utility model or thermistor or temperature fuse or reset fuse or temperature sensing element or thermal metal sheet switch 125 or overload thermal metal sheet 107 is serially connected with the first plug insert 139 to output the power supply, The device is located between the second plug blade 140 and the first plug blade 139 . The plug blade of the other pole outputs power directly. In practical applications, select the insulating heat conductor or insulating heat conducting silica gel or insulating heat conducting material 126 to conduct heat or radiate heat, so that the temperature switch or thermistor or temperature fuse or reset fuse or temperature sensing element or thermal sheet metal switch 125 Cut off the power when the set temperature is reached.

Fig. 2B is a structural schematic diagram of the utility model plug-insert contact device, which outputs power from an overload thermal contact switch or a temperature switch or a temperature sensing element.

At least one pole of the power plug 115 of the present utility model, such as the first plug insert 139, is provided with a contact combination device, which can be a temperature switch or a thermistor or a temperature fuse or a reset fuse or a temperature sensing element or a thermodynamic The sheet metal switch 125 is connected in series with the first plug blade 139 to output power, and the second plug blade 140 of the other pole directly outputs power. In practical applications, between the second plug insert 140 and the first plug insert 139, an insulating heat conductor or an insulating heat-conducting silica gel or an insulating heat-conducting material 126 can be selected to conduct heat or radiate heat, so that the temperature switch or thermistor or When the temperature fuse or reset fuse or temperature sensing element or thermal sheet metal switch 125 reaches the set temperature, the power supply is cut off. During electricity use, when overloaded, the thermal metal sheet switch generates high heat, or the socket conductive shrapnel is in poor contact to generate high heat, and the thermal metal sheet switch bounces off the conductive contact, thereby cutting off the power supply.

Fig. 3A is a schematic diagram of the first structural diagram of the socket overload thermal metal sheet contact switch device of the present invention at the appropriate position of the socket conductive shrapnel, when the contact is poor during power consumption and high heat is generated, the overload thermal metal sheet switch trips and cuts off the power supply.

Fig. 3B is a schematic diagram of the second structure of the socket overload thermal metal sheet contact switch device of the present invention at the appropriate position of the socket conductive shrapnel. When the contact is poor during power consumption and high heat is generated, the overload thermal metal sheet switch trips and cuts off the power supply.

Fig. 3C is a schematic diagram of the third structure of the socket overload thermal metal sheet contact switch device of the present invention at the appropriate position of the socket conductive shrapnel. When the contact is poor during power consumption and high heat is generated, the overload thermal movable metal sheet switch trips and cuts off the power supply.

In the utility model, the overload thermal moving metal sheet contact switch or temperature switch or thermistor or temperature fuse or reset fuse or temperature sensing element or thermal moving metal sheet switch 125 is installed between the first conductive shrapnel 123 of the socket and the second conductive spring of the socket. In the middle or around the appropriate position of the shrapnel 127 or in the socket or outside the socket, the heat is transferred to the temperature switch or thermistor or thermal fuse or reset fuse or temperature sensing element or thermal sheet metal switch 125 through heat transfer or radiation heat transfer. One pole of the power plug 115 is connected to the relay power input point 130 of the relay 129, and the other pole of the power plug 115 is connected to the second conductive shrapnel 127 of the socket. The pole is connected in series to the first conductive shrapnel 123 of the socket through a temperature switch or a thermistor or a temperature fuse or a reset fuse or a temperature sensing element or a thermal sheet switch 125, and then connected in series with the first coil 128 of the electromagnet of the relay 129. When using electricity, press the start button 137, the relay 129 electromagnetic device magnetically conducts the output contact 131 of the relay power supply, and the current flows through the serially connected overload thermal metal sheet 125 and the first conductive shrapnel 123 of the socket. When the socket’s first conductive shrapnel 123 or socket’s second conductive shrapnel 127 are in poor contact, high heat is generated and transferred to the temperature switch or thermistor or thermal fuse or reset fuse or temperature sensing element or thermal metal through heat conduction or radiation Chip switch 125, temperature switch or thermistor or thermal fuse or reset fuse or temperature sensing element or thermal metal sheet switch 125 is thermally tripped, cut off the power supply; at the same time, the power supply of the electromagnetic device first coil 128 of relay 129 is cut off, The magnetic attraction of the relay 129 trips, and the power supply of the relay 129 is cut off. If the power cut-off button 136 is pressed, the power supply of the first coil 128 of the electromagnet is cut off, and the magnetic attraction of the relay 129 trips to cut off the power supply. Alternatively, relay solenoid power is provided by a suitable circuit, not limited to the one shown in the figure. Temperature switch or thermistor or temperature fuse or reset fuse or temperature sensing element or thermal sheet metal switch 125 can be used as the switch that cuts off the power supply when the socket conductive shrapnel is in bad contact and electric overload produces high heat. In practical applications, the relay 129 can also choose a switch as shown in FIG. Thermal metal strip switch, overload thermal metal strip 107 is connected in series to the first conductive shrapnel 123 of the socket, and the other pole of the power supply is directly input to the second conductive shrapnel 127 of the socket. In practical applications, the device power indicator light or alarm 105 can also be selected to indicate the power state; the power switch can also be a switch different from that shown in Figure 3C, and at least one pole power supply of the relay 129 is connected in series with a temperature switch or a thermal sensor. Resistance or temperature fuse or PPTC reset fuse or temperature sensing element or thermal metal sheet switch 125, and then connected in series with the first conductive shrapnel 123 of the socket; or connect the power supply to the overload thermal moving metal sheet 107, conduct electricity through the thermal moving metal sheet The contact point 112 is in contact with the contact point 113 of the power input conductive piece, the power output conductive piece 104 is connected to the socket 103, and then connected in series to the first conductive shrapnel 123 of the socket, and the other pole power is directly input to the second conductive shrapnel 127 of the socket, and the first conductive shrapnel 127 of the socket is connected. At least one temperature switch or thermistor or temperature fuse or return fuse or temperature sensing element or thermal metal sheet switch 125 is provided at the position between the shrapnel 123 and the second conductive shrapnel 127 of the socket that can conduct heat and radiate heat. When overload or poor contact of socket conductive shrapnel produces high heat, temperature switch or thermistor or thermal fuse or reset fuse or temperature sensing element or thermal sheet metal switch 125 can be used to cut off the power supply.

Figure 3D is a temperature switch or a thermistor or a temperature fuse or a reset fuse or a temperature sensing element or a thermal metal sheet switch device of the utility model in front of the first conductive shrapnel of the socket and the second conductive shrapnel of the socket, and the power supply uses a heat conductor or a wire Schematic diagram of heat transfer to overload thermal sheet metal contact switch. In the figure, a temperature switch, a thermistor, a temperature fuse, a reset fuse, a temperature sensing element, or a thermal sheet metal switch 125 are respectively arranged on the positive and negative poles, and the device is the same switch. Also can set temperature switch or thermistor or temperature fuse or reset fuse or temperature sensing element or thermodynamic sheet metal switch 125 at one pole, the other pole is with thermal switch or thermistor or temperature fuse or reset fuse Or temperature sensing element or thermal sheet metal switch 125 bonding, heat conduction to temperature switch or thermistor or thermal fuse or reset fuse or temperature sensing element or thermal sheet metal switch 125, when overload or thermal sheet metal switch When the socket conductive shrapnel is in poor contact and generates high heat, a temperature switch or a thermistor or a temperature fuse or a reset fuse or a temperature sensing element or a thermal sheet metal switch 125 can be used to cut off the power supply.

Fig. 4A is a schematic diagram of the structure of the overload thermal metal switch of the present invention to turn on and cut off the power supply.

Fig. 4B is a top view structure schematic diagram of the overload thermal metal sheet switch of the present invention turning on and cutting off the power supply.

The utility model is provided with a thermal switch structure 101, the thermal switch structure 101 is fixed on the shell 102, the bottom is locked and fixed by the fixing screw 117 of the thermal plate structure, the power input terminal 116 is connected in series with the overload thermal metal plate 107, The conductive contact 112 of the thermal metal sheet is locked and fixed on the thermal switch structure 101 by the power input fixing screw 114, the contact 113 of the power input conductive sheet is fixed on the power output conductive sheet 104, and the overload thermal metal sheet 107 and the thermal metal sheet The conductive contact 112 is in contact, and the overload thermal movable metal sheet 107 is provided with a switch frame 111 at the upper shell 102 of the thermal movable metallic sheet conductive contact 112, so that the slide switch or key switch 108 can slide in a straight line. The slide switch or key switch 108 is fixed on the shell 102, and slides between the shell 102 and the switch holder 110. The slide switch or key switch 108 is provided with a thermally movable metal sheet contact cylinder 106, and the thermally movable metal sheet contact cylinder 106 Push to the right to the overload thermal moving metal sheet 107 positioning point, cut off the power supply. The other end of the slide switch or key switch 108 is provided with a thermal metal sheet contact return cylinder 109, the slide switch or key switch 108 is pushed to the left to overload the thermal metal sheet 107, and the thermal metal sheet conductive contact 112 is input to the conductive sheet contact 113 through the power supply It is in contact with the power output conductive sheet 104 . When the overload thermal moving metal sheet 107 is overloaded, the contacts are popped open, and the sliding switch or key switch 108 can be manually restored or automatically restored, and the sliding switch or key switch 108 is pushed to the left to make the overload thermal moving metal sheet 107 recover, and then the thermal moving metal sheet The conductive contact 112 recovers. There is a gap between the thermally movable metal sheet contact cylinder 106 and the thermally movable metal sheet contact restoring cylinder 109 , which is used for the thermally movable metal sheet to bounce off the conductive contact of the thermally movable metal sheet. When using electricity, plug in the power plug 115, one pole is directly input into one pole of the socket 103, and the other pole is connected with the power input terminal 116, and passes through the heat-carrying movable metal sheet 107 and the thermally movable metal sheet conductive contact 112 and the power input conductive sheet The contacts 113 are in contact with each other, and the power output conductive sheet 104 conducts electricity to output to the other pole of the socket. In practical applications, a power indicator light or a warning device 105 can also be provided.

FIG. 5A is a schematic diagram of a top view of the first structure of the overload thermal metal sheet contact switch of the present invention provided with positioning points for conducting and cutting off the power supply.

Fig. 5B is a schematic diagram of the second structure of the utility model overload thermal metal sheet contact switch provided with a positioning point for conducting and cutting off the power supply.

The slide switch or key switch 108 of the present utility model is provided with switch positioning convex point 118, stretches into switch positioning plate 119, and switch positioning plate 119 is provided with conduction positioning point 135 (not shown in the figure), power cut-off positioning point 134 (not shown in the figure). The central axis 120 of the switch positioning plate 119 is the center of rotation, and the switch positioning plate 119 is provided with a shrapnel fixing seat 121. When using electricity, the slide switch or key switch 108 is pushed to the left to return the cylinder 109 of the thermally movable metal sheet contact, and push The overload thermal moving metal sheet 107 and the conductive contact 112 of the thermal moving metal sheet are in contact with the power input conductive sheet contact 113 to conduct. There is a gap in the contact recovery cylinder 109 of the thermal movable metal sheet. When overloaded, the overloaded thermal movable metal sheet 107 bounces off the contact recovery cylinder of the thermal movable metal sheet in the gap. To cut off the power supply, slide switch or key switch 108 pushes the thermal metal sheet contact cylinder 106 to the right, pushes away the overload thermal metal sheet 107, and the thermal movable metal sheet conductive contact 112 is out of contact with the power input conductive sheet contact 113, and the switch The positioning plate 119 cuts off the power at the position of the power cut-off positioning point 134 .

Fig. 6 is a top view structure schematic diagram of the utility model overload thermal metal sheet contact switch provided with positioning bumps to cut off the power supply.

The sliding switch or key switch 108 of the utility model is provided with a switch positioning bump 118, which extends into a switch positioning plate 119 (not shown in the figure), and the switch positioning plate 119 is provided with a conduction positioning point 135 (not shown in the figure), Power cut off anchor point 134 (not shown in the figure). The central axis 120 of the switch positioning plate 119 is the center of rotation, and the switch positioning plate 119 is provided with a shrapnel fixing seat 121. When the power is to be cut off, the slide switch or key switch 108 pushes the thermally movable metal sheet contact cylinder 106 to the right to open the overload. The thermally movable metal sheet 107, the conductive contact 112 of the thermally movable metal sheet is out of contact with the contact point 113 of the power input conductive sheet, and the switch positioning plate 119 cuts off the power supply at the position of the power cutoff positioning point 134 .

Fig. 7 is a schematic diagram of the structure of the overload thermal metal sheet contact switch and the plug insert of the utility model provided with an insulating heat conductor, through which heat is conducted to a temperature switch or a temperature sensing element.

In the present utility model, the contact switch, the socket 103 and the first conductive shrapnel 123 of the socket are provided with an insulating heat conductor or an insulating heat-conducting silica gel or an insulating heat-conducting material 126, which transfers heat to the temperature switch or the sensing temperature element through heat conduction or radiation. . When the socket is overloaded with electricity, the switch is flicked off by the overload thermal moving metal sheet 107 to cut off the power supply. Please refer to FIG. 5 and FIG. 6 for the above-mentioned overload thermally movable metal sheet 107 to pop open the switch, and details will not be repeated here. The socket of the utility model can be at least one positive and negative hole socket or a multi-hole socket. The socket 103 is provided with a corresponding socket first conductive shrapnel 123 and a socket second conductive shrapnel 127, which are fixed to the socket base 133 by socket conductive shrapnel fixing screws 124. A socket hole 122 is arranged in the middle of the first conductive elastic piece 123 of the socket, and the appropriate position around the first conductive elastic piece 123 of the socket and the second conductive elastic piece 127 of the socket can be conducted through contact or non-contact heat conduction or radiation heat transfer, and a fixed temperature switch or thermal switch is installed. Sensitive resistance or thermal fuse or reset fuse or temperature sensing element or thermodynamic sheet metal switch 125. When the temperature switch or thermistor or temperature fuse or reset fuse or temperature sensing element or thermal metal sheet switch 125 reaches the set temperature, the power supply is cut off to prevent contact between the first conductive elastic piece 123 of the socket and the second conductive elastic piece 127 of the socket The high heat generated by the malfunction burns out the socket 103 . In order to cut off the power supply more quickly, an insulating heat conductor or an insulating heat-conducting silica gel or an insulating heat-conducting material 126 can be installed around the socket 103, the first conductive elastic piece 123 of the socket, and the second conductive elastic piece 127 of the socket. The heat is transmitted to the middle or any position between the first conductive shrapnel 123 of the socket and the second conductive shrapnel 127 of the socket, and a fixed temperature switch or a thermistor or a temperature fuse or a reset fuse or a temperature sensing element or a thermal Move the sheet metal switch 125. When the set temperature is reached, the power supply is cut off to prevent the socket 103 from being burned due to high heat caused by poor contact between the first conductive shrapnel 123 of the socket and the second conductive shrapnel 127 of the socket. The generation of electric wire fire accident caused by the high heat caused by the poor contact of the conductive shrapnel 127.

Fig. 8 is a schematic diagram of the structure of the utility model relay, overload thermal metal sheet contact switch and plug insert provided with an insulating heat conductor, through which heat is conducted to the temperature switch or temperature sensing element.

The relay 129 of the utility model, the overload thermal moving metal sheet 107, the socket 103 and the first conductive shrapnel 123 of the socket are provided with an insulating heat conductor or an insulating heat-conducting silica gel or an insulating heat-conducting material 126 to conduct heat to a temperature switch or a thermistor or a temperature fuse or reset. Fuses or temperature sensing elements or thermal foil switches 125 . Please refer to FIG. 6 for the description of the thermally overloaded metal plate 107 , which will not be repeated here.

The socket 103 and the first conductive shrapnel 123 of the socket are provided with an insulating heat conductor or an insulating heat-conducting silica gel or an insulating heat-conducting material 126 to conduct heat to a temperature switch or a thermistor or a temperature fuse or a reset fuse or a temperature sensing element or a thermal metal sheet switch 125 , please refer to FIG. 7 , which will not be repeated here.

The utility model describes the combined application of the relay and the overload thermal metal sheet 107 and temperature switch or thermistor or temperature fuse or reset fuse or temperature sensing element or thermal metal sheet switch 125 . When using electricity, the slide switch or key switch 108 pushes the overload thermal metal sheet 107 to the left, the conductive contact 112 of the thermal movable metal sheet contacts the contact point 113 of the power input conductive sheet, and the power output conductive sheet 104 is connected to the first socket in the socket 103. Conductive shrapnel 123. The second conductive shrapnel 127 of the other pole socket of the socket 103 is directly input by the power plug 115, and the second conductive shrapnel 127 of the socket is connected with a temperature switch or a thermistor or a temperature fuse or a reset fuse or a temperature sensing element or a thermal sheet switch 125 Connect in series, then connect in series to the position of the first coil 128 of the electromagnet in the relay 129; one pole of the relay 129 is directly input to the relay power input contact 130 of the relay 129 by the power plug 115, and the other pole of the relay 129 is the second coil 132 of the electromagnet, The thermal overload metal sheet 107 is connected to the power cut-off button 136 through the conductive contact 112 of the thermal movable metal sheet and the contact 113 of the power input conductive sheet, and connected to the second coil 132 of the electromagnet through the maintenance contact point 138 . When using electricity, press the start button 137 of the relay 129, the electromagnet is magnetically attracted, the relay power input contact 130 conducts the relay output contact 131, and the overload thermal moving metal sheet 107 passes through the thermal moving metal sheet conductive contact 112 and the power input conductive sheet The contacts 113 are in contact, and the power output conductive piece 104 is connected to the first conductive elastic piece 123 of the socket 103 to provide power. When the socket first conductive shrapnel 123 or the socket second conductive shrapnel 127 are in poor contact, high heat is generated to reach the set point of the temperature switch or temperature sensor element, the power supply of the first coil 128 of the electromagnet of the relay 129 is cut off, and the electromagnet is separated from the magnetic attraction. Cut off the relay power supply output contact 131 power supply simultaneously; When overloaded, jump off the power supply by the overload thermal metal sheet 107, cut off the electromagnet second coil 132 power supply of relay 129, cut off the relay power supply output contact 131 power supply simultaneously; The shrapnel 123 is short-circuited with the second conductive shrapnel 127 of the socket, resulting in a voltage drop. The voltage of the relay 129 electromagnet is insufficient, and the power supply of the first conductive shrapnel 123 of the socket and the second conductive shrapnel 127 of the socket is cut off in milliseconds. Alternatively, relay solenoid power is provided by a suitable circuit, not limited to the one shown in the figure. The application of this combination can ensure the safety of electricity use of the socket.

Fig. 9 is a structural schematic diagram of the combination of the relay of the present invention and the thermal overload contact switch of the metal sheet.

In the utility model, the relay, the thermal switch structure 101 and the thermal overload metal sheet contact switch are combined into one. The relay 129 is provided with a slide switch or key switch 108 and a switch holder 110. The power is input from the power input terminal 116. The power input terminal 116 is connected in series with the overload thermal metal sheet 107, and the conductive contact 112 of the thermal metal sheet is connected to the power input conductive sheet. The contacts 113 are in contact. When in use, press the slide switch or the key switch 108 to make the relay movable piece 142 move down, the relay power input contact 130 on the relay movable piece 142 is turned on, and the power is output through the relay power output contact 131 . The second coil 132 of the relay solenoid is directly connected to the power supply, and the first coil 128 of the solenoid of the other pole of the relay is connected in series to the output contact 131 of the relay power supply. When the output wire is short-circuited, the voltage of the coil of the relay solenoid drops, and the output power is cut off immediately within milliseconds Overload is cut off by the contact switch of overload thermal moving metal sheet; if want to cut off the power supply, press slide switch or key switch 108, push post 143 to push away overload thermal moving metal sheet 107, thermal moving metal sheet conductive contact 112 conducts electricity with power supply input The strip contact 113 is separated, and the power supply of the first coil 128 of the electromagnet is cut off. It can guarantee the safe use of the relay output power supply.

Preferably, the slide switch or the key switch can be a rocker switch, and the bottom is designed as a cylinder, which is used to cut off or conduct the heat-carrying movable metal sheet contact switch.

Preferably, the socket is a single-hole positive and negative socket or a porous positive and negative socket, wherein the overload thermal contact switch of the porous positive and negative socket is installed in the middle of the positive and negative poles of the conductive shrapnel of the socket or at an appropriate position or the socket The conductive shrapnel can conduct heat, radiate heat transfer to the position or the socket or the socket shell. And at least one or more serially connected overload thermal metal sheet contact switches or temperature switches or thermistors or reset fuses or temperature sensing elements can be installed at an appropriate position, and the heat transfer and radiation heat can reach the device position through the heat conductor Sensing an overload thermal sheet metal contact switch or a temperature switch or a thermistor or a reset fuse or a temperature sensing element. When overloaded, the overloaded thermal metal contact switch automatically trips and cuts off the power supply; if the conductive shrapnel of the socket is not in good contact, high heat is generated during power consumption, and the overloaded thermal metal contact switch senses heat and automatically trips to cut off the power supply.

Preferably, any element that can cut off the power supply when it is overloaded or the socket's conductive shrapnel is in poor contact generates high heat, such as a thermal metal switch or a temperature switch or a thermal fuse or a temperature sensor, and it is installed around the socket's conductive shrapnel Appropriate positions or inside or outside the socket box, the components that cut off the power supply through heat conduction or radiation heat transfer can be applied to the utility model.

Preferably, when the conductive shrapnel of the socket is poorly contacted to generate high heat, the conductive shrapnel of the socket conducts heat or radiates heat to the middle of the conductive shrapnel of the positive and negative sockets or to an appropriate heat conduction position in a contact or non-contact manner, and the position is fixed by a temperature switch or A thermistor or reset fuse or temperature sensing element or thermo-actuated metal leaf switch that cuts power when the temperature reaches a set point. In order to keep the circuit in the cut-off state after the power is cut off, the PTC electric heater can be used to bond with the above-mentioned temperature switch or thermistor or reset fuse or temperature sensing element or thermal metal sheet switch and other components, or heat transfer to overload The hot metal sheet contact switch keeps the high temperature of the switch, thereby maintaining the cut-off state of the circuit; the power supply of the PTC electric heater and the temperature switch are connected in parallel in the same pole circuit, and the PTC electric heater does not generate heat if the other pole is not connected to the power supply. Poor contact of the conductive shrapnel produces high heat, cut off the output power, at this time the other pole power is immediately input to the PTC electric heater, generating heat to maintain the temperature switch or thermistor or reset fuse or temperature sensing element or thermal metal sheet switch at high temperature, Cut off the power. In the present utility model, the temperature switch is bonded to the PTC or the heat is transferred to the thermal metal sheet, which is an existing product and will not be repeated here.

Preferably, the utility model can be used in conjunction with the electromagnetic power supply of the relay. The temperature switch or thermistor or reset fuse or temperature sensing element or thermal metal sheet switch of the middle position device of the socket conductive shrapnel and the number can be selected according to Actually need to choose. For example, the power supply is connected in series with a thermal sheet metal switch, and the thermal sheet metal switch is connected to the conductive shrapnel of the socket. If the thermal sheet metal switch is overloaded and tripped, the power supply is cut off. One pole of the electromagnetic power supply of the relay can be connected in series through the thermal sheet metal switch. Thermistor or reset fuse or temperature sensing element is input, and the power of the electromagnet of the other pole is directly input from the power supply.

Preferably, the socket is a positive and negative hole socket or a multi-hole socket, and a temperature switch or a thermistor or a temperature fuse or a reset fuse or a temperature sensing element or a heat sink is installed in the middle of the conductive shrapnel of the socket or in a proper heat conduction position in the socket or outside the socket. Moving metal sheet switch, through contact or non-contact heat conduction or radiation heat transfer to temperature switch or thermistor or thermal fuse or reset fuse or temperature sensing element or thermal moving metal sheet switch, when overloaded or socket conductive shrapnel contact Bad, high heat is generated, when the temperature on the temperature switch or thermistor or thermal fuse or reset fuse or temperature sensing element or thermal metal sheet switch reaches the set temperature, cut off the power supply. In practical applications, the components in the socket that cut off the power through heat conduction or radiated heat are not limited to the above-mentioned components, for example, other components that cut off the power in the socket or outside the socket, such as power indication Lights or alarms, when the conductive shrapnel of the socket is poorly contacted to generate high heat, cut off the power or indicate the power status through the power indicator light, or notify the power status through the alarm sound.

The preferred embodiments above are used to further describe the purpose, technical solutions and advantages of the utility model in detail. It should be understood that the above descriptions are only preferred embodiments of the utility model and are not intended to limit the utility model. As a new model, within the spirit and principles of the utility model, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the utility model, and the scope of rights claimed by the utility model should be based on the utility model The scope of application shall prevail, rather than being limited to the above-mentioned embodiments.

Claims (14)

1, the overheated safety socket unit of a kind of overload, comprise: cross the moving sheet metal contact switch of heat-carrying, socket, the socket electroconductive elastic sheet, it is characterized in that: at least in one in each both positive and negative polarity spring hole scoket electroconductive elastic sheet device, or on the porous socket electroconductive elastic sheet device one or more serial connections appropriate members, appropriate members comprised the moving sheet metal contact switch of heat-carrying or temperature switch or involution formula fuse or temperature sensor or the overheated elements combination of transshipping arbitrarily, crossing the moving sheet metal contact switch of heat-carrying is connected in series with the socket electroconductive elastic sheet, cross the moving sheet metal contact switch device of heat-carrying around the socket electroconductive elastic sheet or in middle appropriate location or the socket or outside the socket, when overload or the high heat of socket electroconductive elastic sheet loose contact generation, penetrate conducted heat the extremely moving sheet metal contact switch of heat-carrying or temperature switch or involution formula fuse by the heat conduction or the width of cloth, make moving sheet metal contact switch of heat-carrying or temperature switch or involution formula fuse or the thermal element that transshipped arrive the temperature of setting, cut off socket power.

2, the overheated safety socket unit of a kind of overload, comprise: the thermal switch structure, slide switch, power supply indicator, socket, the socket electroconductive elastic sheet, promote post, the promotion post is stirred the moving sheet metal of mistake heat-carrying on the thermal switch structure, conducting or cut off the electricity supply, it is characterized in that: the thermal switch structure is provided with power input terminal, the moving sheet metal contact switch of mistake heat-carrying on power input terminal and the thermal switch structure is fixed in the thermal switch structure by screw, power output terminal is established contact and is contacted with the moving sheet metal contact switch of mistake heat-carrying, out-put supply is to the socket electroconductive elastic sheet, promote post and stirred the moving sheet metal contact switch of heat-carrying, conducting or cut off the electricity supply, cross the moving sheet metal contact switch of heat-carrying during overload and cut off the electricity supply, and by power supply indicator indication power supply status.

3, the overheated safety socket unit of a kind of overload, comprise: cross the moving sheet metal contact switch of heat-carrying, socket, the socket electroconductive elastic sheet, the moving sheet metal switch of temperature switch or thermistor or Thermal Cutoffs or involution fuse or temperature sensor or heat, it is characterized in that: at least in one in each both positive and negative polarity spring hole scoket electroconductive elastic sheet device, or one or more temperature switch or thermistor or Thermal Cutoffs or involution formula fuse or temperature sensor or the moving sheet metal switches of heat that are serially connected in socket electroconductive elastic sheet appropriate location of device on the porous socket, and the insulating thermal conductor by device or insulating heat-conductive silica gel or insulating heat-conduction material heat conduction are to temperature switch or thermistor or Thermal Cutoffs or involution formula fuse or temperature sensor or the moving sheet metal switch of heat, when overload or the high heat of socket electroconductive elastic sheet loose contact generation, penetrate by the heat conduction or the width of cloth and to conduct heat to appropriate members, appropriate members comprised the moving sheet metal contact switch of heat-carrying or temperature switch or involution formula fuse or the overheated elements combination of transshipping arbitrarily, arrive the temperature of setting, cut off socket power.

4, the overheated safety socket unit of a kind of overload, comprise: relay, cross the moving sheet metal contact switch of heat-carrying, socket, the socket electroconductive elastic sheet, it is characterized in that: relay is combined into one with the moving sheet metal contact switch of mistake heat-carrying, relay power exports at least one both positive and negative polarity spring hole scoket or porous socket to, power supply one utmost point input relay, relay power with cross that the moving sheet metal contact switch output of heat-carrying be connected in series or relay power output serial connection to the moving sheet metal contact switch of heat is exported, be connected in series again to the socket electroconductive elastic sheet, relay electromagnetic device one utmost point power supply is connected in series with the moving sheet metal contact switch output of mistake heat-carrying, another utmost point power supply of relay electromagnetic device imports by temperature switch or temperature-sensitive sticker or power supply is directly imported, when overload, cross the moving sheet metal contact switch escape block system relay electromagnetic device power supply of heat-carrying, when the short circuit of socket both positive and negative polarity lead, relay electromagnetic device voltage descends, the magnetic escape, relay millisecond internal cutting off power supply, when the loose contact of socket electroconductive elastic sheet produces high heat, temperature switch or temperature-sensitive sticker are cut off the electricity supply after arriving temperature set-point, cut off the electromagnetic device power supply simultaneously, the output of magnetic escape block system relay power supply, or the electromagnetic coil relay power supply is provided by the circuit that is fit to.

5 one kinds of overheated safety socket units of overload, comprise: plug, plug slice, the socket electroconductive elastic sheet, cross the moving sheet metal contact switch of heat-carrying, temperature switch, Thermal Cutoffs, temperature sensor, it is characterized in that: establish the moving sheet metal conductive junction point of heat at a utmost point plug slice at least, plug slice was combined as the moving sheet metal contact switch of heat-carrying or temperature switch or Thermal Cutoffs or temperature sensor with the moving sheet metal conductive junction point of heat, or, plug slice serial connection appropriate members, appropriate members comprises the moving sheet metal contact switch of heat or temperature switch or Thermal Cutoffs or temperature sensor or combination in any, when overload, cross the moving sheet metal contact switch of heat-carrying and produce high heat, or during the loose contact of socket electroconductive elastic sheet, conduct heat or the width of cloth is penetrated heat to crossing the moving sheet metal contact switch of heat-carrying, cross the moving sheet metal contact switch of heat-carrying and flick the moving sheet metal conductive junction point of heat and cut off the electricity supply.

6, the overheated safety socket unit of overload as claimed in claim 2 is characterized in that: slide switch is any switch, stirs the moving sheet metal contact switch of heat-carrying by the promotion post on the switch, conducting or cut off the electricity supply.

7, as any overheated safety socket unit of described overload of claim 1 to 5, it is characterized in that: cross and to reset by hand switch behind the moving sheet metal contact switch overload trip of heat-carrying or automatically reset.

8, the overheated safety socket unit of overload as claimed in claim 6 is characterized in that: cross the moving sheet metal contact switch of heat-carrying and be provided with anchor point, by the anchor point conducting or cut off the electricity supply.

9, as any overheated safety socket unit of described overload of claim 1 to 5, it is characterized in that: at the contact of socket electroconductive elastic sheet appropriate location device or non-contacting insulating thermal conductor or insulating heat-conductive silica gel or insulating heat-conduction material, penetrate heat by the heat carrier heat conduction or the width of cloth, make suitable temperature switch or thermistor or Thermal Cutoffs or involution fuse or the temperature sensor or the moving sheet metal switch temperature arrival of the heat design temperature of selection, cut off the electricity supply.

10, as any overheated safety socket unit of described overload of claim 1 to 4, it is characterized in that: socket comprised further that heat-carrying moved sheet metal contact switch, device temperature switch or thermistor or Thermal Cutoffs or involution fuse or temperature sensor or the moving sheet metal switch of heat, the relay around the socket electroconductive elastic sheet, with three's applied in any combination.

11, as any overheated safety socket unit of described overload of claim 1 to 4, it is characterized in that: power supply is by plug slice or lead input, plug slice or lead output serial connection both positive and negative polarity spring hole scoket or porous socket, at least on a both positive and negative polarity spring hole scoket, install one, or the one or more moving sheet metal contact switches of mistake heat-carrying that are serially connected on the socket electroconductive elastic sheet of porous socket device, overload or the loose contact of socket electroconductive elastic sheet produce high heat in the use, cut off the moving sheet metal switch of suitable heat or temperature switch or temperature-sensitive sticker that the element that uses power supply comprises selection, device is penetrated heat by the heat conduction or the width of cloth and is conducted heat and arrive design temperature and cut off the electricity supply around the socket electroconductive elastic sheet in appropriate location or the socket box or outside the socket box.

12, the overheated safety socket unit of overload as claimed in claim 4, it is characterized in that: relay electromagnetic device power supply one utmost point power supply is directly imported, another utmost point power series is crossed the moving sheet metal contact switch of heat-carrying, crossing the moving sheet metal contact switch of heat-carrying is connected in series to the socket electroconductive elastic sheet, the socket electroconductive elastic sheet is connected in series to relay electromagnetic device power supply, or cross heat-carrying and move suitable thermistor or Thermal Cutoffs or temperature switch or the temperature sensor that sheet metal contact switch serial connection is selected, be connected in series again to relay electromagnetic device power supply, when overload or the high heat of socket electroconductive elastic sheet loose contact generation, cut off the electricity supply, or the electromagnetic coil relay power supply is provided by the circuit that is fit to.

13, as any overheated safety socket unit of described overload of claim 1 to 5, it is characterized in that: when operating overload or the high heat of socket electroconductive elastic sheet loose contact generation, temperature is cut off the electricity supply after arriving design temperature, using PTC electric heater and respective element fits, conduct heat to crossing the moving sheet metal contact switch of heat-carrying or thermistor or temperature switch or temperature sensor, keep the moving sheet metal contact switch of suitable mistake heat-carrying or thermistor or the temperature switch or the temperature sensor high temperature of selection, flick the moving sheet metal conductive junction point of heat, cut off the electricity supply.

14, as any overheated safety socket unit of described overload of claim 1 to 4, it is characterized in that: the moving sheet metal switching device of temperature switch or thermistor or Thermal Cutoffs or involution fuse or temperature sensor or heat is in socket electroconductive elastic sheet the place ahead, power supply conducts heat to crossing the moving sheet metal contact switch of heat-carrying with heat carrier or lead, both positive and negative polarity is provided with the moving sheet metal switch of heat respectively and device is same switch, or one the utmost point the moving sheet metal switch of heat is set, another utmost point is fitted the moving sheet metal switch of heat carrier and heat, heat conduction is to the moving sheet metal switch of heat, when overload or the loose contact of socket electroconductive elastic sheet produce highly when hot, the moving sheet metal switch of the suitable temperature switch of selection or thermistor or Thermal Cutoffs or involution fuse or temperature sensor or heat is cut off the electricity supply.

15, as any overheated safety socket unit of described overload of claim 1 to 4, it is characterized in that: plug slice serial connection overload heater element, the overload heater element comprises the moving sheet metal of heat or thermistor or Thermal Cutoffs or involution fuse or temperature sensor, overload heating position applying serial connection temperature switch at the overload heater element, when overload, moving sheet metal of heat or thermistor or Thermal Cutoffs or involution fuse or temperature sensor heating, the heat transfer or the width of cloth are penetrated heat to temperature switch, arrive design temperature, temperature switch is cut off the electricity supply.

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