CN203119437U - Device for improving on-off power supply of electromagnetic device of relay - Google Patents

Abstract

A relay electromagnetic device to improve the starting and breaking power supply, including a relay solenoid, a relay solenoid starting and breaking component, a socket, a load component, and a voltage drop resistor. At least one pole of the relay solenoid input power supply is connected in series with a load component, and the load component is connected in series. The relay solenoid starts and breaks the component, and the other pole of the power supply is connected to the input or output power supply; one pole of the power supply is connected to the voltage drop resistor and the load element in series, the load element output is connected to the relay C input, and the relay ON conductive sheet output terminal is connected to the socket or power cord output. Load, the other pole of the socket is connected to the power pole; the power plug, the voltage drop resistor, the load element, the relay and the socket form a box, or the power plug and the voltage drop resistor, the load element and the socket form a box, or the power plug and The voltage drop resistor, load component and power cord output or the power plug power cord output and the voltage drop resistor, load component, relay and socket are in a box. The utility model can prevent wire fire caused by a short circuit of the power supply and ensure the safety of the product.

Description

A relay electromagnet improves the start and break power supply device

technical field

The utility model relates to a power supply device, in particular to an on-off element of a relay electromagnet and a voltage drop resistor device, in which at least one pole of the relay electromagnet power supply is connected in series The power supply of the other pole is connected to the input or output power supply. The electromagnetic coil of the electromagnetic device passes through a disconnect button and a start button. The start button and the disconnect button circuit are connected in series to prevent the socket from outputting the wire. Press the start button to short-circuit and burn down. When the power wire short-circuits and generates a large current, the power supply of the relay electromagnetic device is instantly reduced to the switching voltage of the electromagnetic device, and the spring makes the contact of the conductive sheet quickly separate from the conduction output contact within microseconds; the power supply One pole is connected in series with the input of the voltage drop resistance to connect to the load element, the output of the load element is connected to the input of relay C, the output contact terminal of the relay ON conductive sheet is connected to the socket or the output of the power supply is connected to the load, and the other pole of the socket is connected to one pole of the power supply; the power plug, voltage drop Resistors, load components, relays and sockets are combined into one box; it can also be divided into power plugs, voltage drop resistors, load components and sockets into one box, and can be divided into power plugs connected in series with voltage drop resistors connected in series with load components. Connect the power line output, at least one pole or two poles of the power plug output is connected in series with a voltage drop resistor, which is used as power supply to socket circuit protection, and the voltage drop resistor is connected in series with the load element and connected in series with the relay. Or reduce the application of components, and apply voltage drop resistors to protect the plug-to-socket circuit. The load component is a thermal switch or a non-fuse switch, which can prevent the wire from igniting caused by the short circuit of the power supply and ensure the safety of the product, all of which belong to the patent scope of this case. . the

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. the

However, while it is convenient to use electricity or supply power, there is also danger. In order to reduce the danger in using electricity or supplying electricity, fuses are installed in the circuit to protect the products in the power supply and to ensure the safety of the power supply wires, so that the circuit will be safe in the event of an accident. When the power supply wire is short-circuited or abnormally overloaded, the fuse can be automatically disconnected immediately, which can prevent accidents such as wire fire and product burnout. the

The use of power supply fuses has been in use for many years. According to the requirements of the application, common types of fuses include blown fuses and non-fuse switches. Each type of fuse has its own advantages and disadvantages in use. For example, blown fuses need to be replaced. Although the non-fuse switch fuse does not need to be replaced, it takes a long time for the fuse to disconnect during protection, and the fuses required for the current power supply require a short disconnection time, convenience of use and high reliability. cost-effective. the

Utility model content

The utility model provides a relay electromagnetic device to improve the on-off power supply device to solve the problems in the prior art that the disconnection time of the fuse is long and the application safety is low. the

In order to achieve the above object, the utility model provides a relay electromagnet to improve the on-off power supply device, the relay electromagnet to improve the on-off power supply device includes: voltage drop resistor, load element, relay electromagnet, electromagnet on-off element, The socket and the electromagnetic coil, the voltage drop resistor is a material that can conduct voltage and current with resistance inside, the voltage drop resistor can be installed at the appropriate position from the power plug to the socket, and at least one pole or two poles are output from the power plug A voltage drop resistor, a load element, a relay and a socket are connected in series, the load element is a thermal metal sheet switch or a non-fuse switch applying the principle of a thermal sheet, at least one voltage drop resistor is connected in series with the input or output end of the load element, or The power input or output of the relay is connected in series; the power plug is connected in series with voltage drop resistors, load components, relays and sockets, or the plug is connected in series with voltage drop resistors, load components and sockets, or the plug is connected in series with voltage drop resistors, relays and sockets, or The plug is connected in series with voltage drop resistors, load elements, and wires to the socket circuit; one pole of the power supply is connected to one pole of the electromagnet, the electromagnetic coil is connected to the load element through a disconnect button and a start button or an elastic conductive sheet, and the other pole of the relay electromagnet The poles are connected to the start-off element and connected to the power supply output or input, and the start button and disconnect button circuits are connected in series with resistors. the

Further, one pole of the power supply is connected to one pole of the electromagnet, and the electromagnetic coil is connected to the load element through a disconnect button and a start button or an elastic conductive sheet. Press the start button to make the contact turn on the power supply of the electromagnet, and press the button when it is disconnected. Disconnect the button to disconnect the power supply of the electromagnet, the other pole of the relay electromagnet is connected to the electromagnet on-off element and connected to the output or input of the power supply, the circuit of the start button and the disconnect button is connected in series with a resistor, and a warning light or a warning sound is provided to remind device. the

Further, the device for improving the on-off power supply of the relay electromagnet also includes: an electromagnet base, a spring, and a magnetically attracted movable piece; the upper end of the electromagnet base is provided with the magnetically attracted movable piece, the magnetically attracted The movable piece is provided with the spring, and the spring connects the magnetic movable piece and the electromagnet base; the conductive piece contact of the elastic conductive piece is fixed above the magnetic movable piece; The relay electromagnet is connected to the electromagnet on-off element. When the output power of the relay electromagnet is short-circuited, a large current is generated, and the voltage drops. The contact of the elastic conductive sheet is quickly separated from the conduction output contact. the

Further, the voltage drop resistor and the load element are connected in series, the power plug is connected in series with the voltage drop resistor and the load element is connected in series, the output is connected to the relay input C terminal, the output power of the relay ON conductive sheet terminal is connected to the socket, and the other pole of the power supply is connected to the input socket ;The plug, relay, load element and socket are combined into a box, or the plug and relay are combined into a box. The plug is used as a combination of various extension lines to the socket box, and the power output is connected to the load, or the power plug extension line A box is formed by connecting voltage drop resistors, load elements or relays and sockets in series. the

Further, the power plug is output to the socket circuit, and at least one pole or two poles are connected in series with the voltage drop resistor, the load element and the socket, or the power cord of the power plug is output to the socket circuit, and at least one pole or two poles are connected in series with the voltage drop resistor , load elements, relays and sockets; or thermal switches or non-fuse switch power plugs output to the socket circuit, at least one or two poles are connected in series with voltage drop resistors and wires for output. the

Further, the power plug is connected in series with a voltage drop resistor and a load element, the load element is connected in series with the relay input terminal, the relay output terminal is connected in series with the socket box combination, or the power plug is connected in series with a voltage drop resistor, a load element or a thermal element. Socket box combination, or power plug series connection voltage drop resistance, load element or relay, power line output or series socket combination, the socket is equipped with load element or relay combination. the

Specifically, the power plug and the voltage drop resistor, load element, relay and socket are combined into a box; or the power plug and the voltage drop resistor, load element and socket are combined into a box, or the power plug is connected in series with the voltage drop resistor, Load element or relay, power line output series connection relay series socket, or power plug series connection pressure drop resistor, load element or relay, power line output, or power line output of power plug to the socket, the socket has at least one pole or two poles The voltage drop resistor is connected in series, the load element is connected in series, the relay is connected in series with the socket, or the voltage drop resistor is not connected in series in the socket circuit, and the load element is a thermal switch or a no-fuse switch. the

In order to achieve the above purpose, the utility model further provides a relay electromagnetic device to improve the on-off power supply device, and the relay electromagnet device to improve the on-off power supply device includes: a voltage drop resistor, a load element, a power switch, a relay and a plug box combination , the load element is a thermal sheet metal switch or a non-fuse switch, at least one pole or two poles are connected in series with a voltage drop resistor, the input or output of the switching power supply is provided with a conductive terminal as a voltage drop resistor, or the switching power supply The input or output is provided with a conductive terminal, and then a voltage drop resistor is connected in series. the

Further, the power plug is output to the socket circuit, and at least one pole or two poles are connected in series with a voltage drop resistor, a load element and the socket, or the power supply is output to the socket circuit, and at least one pole or two poles are connected in series with a voltage drop resistor, a load element , relays and sockets; or thermal switch or no-fuse switch power supply output to the socket circuit, the power plug output to the socket circuit, at least one pole or two poles are connected in series with voltage drop resistors and wires in series output, the voltage drop The resistance can be installed at the appropriate position from the power plug to the socket. the

Further, the power plug is connected in series with a voltage drop resistor and a load element, the load element is connected in series with the relay input terminal, the relay output terminal is connected in series with the socket box combination, or the power plug is connected in series with a voltage drop resistor, a load element or a thermal element. Connect to the socket box combination, or the power plug is connected in series with a voltage drop resistor, a load element or a relay, and a power line output. the

The beneficial effect of the utility model is that, through the relay electromagnet of the utility model, the switching power supply device can be improved, which can prevent the wire from firing caused by the short circuit of the power supply, and ensure the safety of the used product. the

The above is a brief description of a relay electromagnetic device of the present invention to improve the on-off power supply device. In order to enable those skilled in the art to have a further understanding and understanding of the purpose, characteristics and efficacy of the present invention, the following implementation methods are combined with the attached Figure, the utility model is described in detail. the

Description of drawings

Fig. 1A is a schematic diagram of the structure of a relay power supply overload device in which a relay electromagnet improves the on-off power supply, and the relay input circuit is connected in series with the load element;

Fig. 1B is a kind of relay electromagnet device to improve the on-off power supply device, the relay starts the relay magnetic suction movable sheet magnetic suction conductive sheet and the quick disconnection power supply makes the relay power supply overload device structural diagram that the electromagnet voltage drops by pressing the button by hand;

Figure 1C is a schematic diagram of a relay electromagnetic device to improve the on-off power supply device, and the portable socket of the relay;

Figure 1D is a relay electromagnetic device to improve the on-off power supply device, based on the schematic diagram of the three button positions in Figure 1A;

Fig. 1E and Fig. 1F are a kind of relay electromagnetic device to improve the on-off power supply device, the relay and the load element extension line socket, the load element and the extension line plug are a schematic diagram of a box;

Figure 1G is a schematic diagram of a relay electromagnet to improve the on-off power supply device, the relay and the load element extension cord socket;

Fig. 2A is a schematic diagram of a combination structure of resistance or inductance or electronic component circuit button shrapnel in a relay electromagnetic device to improve the on-off power supply device, and a relay power supply overload device;

Fig. 2B, Fig. 2C, Fig. 2D are a kind of relay electromagnetic device to improve the start-off power supply device, the resistance or inductance in the relay power supply overload device, or the combination of electronic component circuit key and key shrapnel, and the structure schematic diagram of the circuit or load element device in the appropriate position of the relay ;

Fig. 3A is a schematic diagram of a relay electromagnet to improve the on-off power supply device, the load element is a thermal metal sheet switch, and the thermal metal sheet is fixed on the voltage drop resistance terminal;

Fig. 3B is a schematic diagram of a relay electromagnet to improve the on-off power supply device, the load element is a thermal metal sheet switch, and the thermal metal sheet is fixed on the output and input terminals and connected in series with the voltage drop resistance terminal. the

reference sign

99 relay shell 101 conductive sheet power input contact

102 conductive sheet contact 103 load element

105 electromagnetic base

106 spring 107 electromagnet

108 Magnetic movable piece 110 Relay mechanism fixing seat

111 Disconnect (NC) output contact 112 Conduction (ON) output contact

113 Power input point 114 Electromagnetic coil

115 solenoid coil 116 relay start button

117 relay disconnect button 118 indicator light

119 temperature sensing element 120 input conductive terminal

121 Output conductive terminal 122 Thermal switch reset button

124 thermal metal sheet

125 thermal metal sheet contacts 126 voltage drop resistor terminal contacts

129 hand press buttons 130 socket or PCB board output power supply

131 Socket Shell                                                                                    

133 elastic conductive sheet 134 resistance

135 warning light or warning sound reminder device 136 voltage drop resistor

137 power switch                                                

139 electronic circuits

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. the

The relay power supply overload device of the utility model includes a relay mechanism body, a relay electromagnet connected in series with a relay electromagnet on-off element, a voltage drop resistor and a load element. When the voltage drops to the point where the electromagnet needs to be turned on and off the power supply, the electromagnetic force of the solenoid coil is insufficient, and the magnetic movable piece returns to the initial position under the action of the spring, thus releasing the contact of the conductive piece and quickly disconnecting the power supply; when the load is overloaded, the load will Components such as thermo-actuated metal leaf switches or PPTC resettable fuses or fuses or transistors or resistive wire characteristics disconnect power. the

A relay electromagnet improves the on-off power supply device, comprising a relay shell 99, a conductive sheet power input contact 101, a conductive sheet contact 102, a load element 103, an electromagnetic device base 105, a spring 106, an electromagnetic device 107, and a magnetically attracted movable sheet 108. Relay mechanism fixing seat 110, disconnect (NC) output contact 111, conduction (ON) output contact 112, power input point 113, solenoid coil 114, solenoid coil 115, relay start button 116, relay disconnect button 117, indicator light 118, temperature sensing element 119, voltage drop resistance input terminal 120, output terminal 121, thermal switch reset button 122, current regulator 123, thermal metal sheet 124, thermal metal sheet contact 125, pressure Drop resistance terminal contacts 126, hand press buttons 129, socket 130, socket shell 131, relay solenoid on-off element 132, elastic conductive sheet 133, resistor 134, warning light or warning sound reminder device 135, voltage drop resistor 136, switch 137 , the power supply blade 138, and the electronic circuit 139, wherein the load element 103 can be a thermal sheet metal switch or a PPTC resetting fuse or a fuse or a transistor or a resistance wire. In the utility model, the relay and the load element are integrated, which can more effectively protect the insulating layer of the power supply wire used, prevent fire and product burnout caused by the fire of the power supply wire, and improve the safety of power supply. the

Fig. 1A is a structural schematic diagram of a relay electromagnet to improve the on-off power supply device, and a relay power supply overload device in which the relay input circuit is connected in series with the load element. the

Referring to Fig. 1A, there is an electromagnet 107 inside the relay housing 99, the electromagnet 107 is fixed on the electromagnet base 105, the electromagnet base 105 is fixed on the relay mechanism fixing seat 110, and the top end of the electromagnet base 105 is provided with a magnetic attraction The movable piece 108 is provided with a return spring 106 on the magnetic movable piece 108, and the return spring 106 is connected to the magnetic movable piece 108 and the electromagnet base 105, and the conductive piece power input contact 101 and the conductive piece contact 102 are fixed on the magnetic suction Above the movable piece 108, above the conductive piece contact 102, there is a power disconnect (NC) output contact 111. ON) output contact 112, which may be provided with a power switch 137, the power conduction (ON) output contact 112 is fixed on the relay mechanism fixing seat 110, and the relay mechanism fixing seat 110 is provided with a power input contact 113, and the power input contact 113 is in front of C The input connection of the voltage drop resistor 136 is connected in series. The C of the power input contact point 113 is in contact with the contact point of the load element 103. The output of the load element 103 can also be connected in series with the voltage drop resistor 136 to the power input contact point 101 of the conductive sheet. In this embodiment, the voltage drop resistor 136 The drop resistance can be round or flat or in a suitable shape. The load element 103 includes a thermal sheet metal switch or a PPTC resetting fuse or a fuse or a transistor or a resistance wire. The load element 103 is fixed on the relay mechanism fixing seat 110, and the relay mechanism fixing seat 110 is provided with electromagnet coil 114 power contact and electromagnet coil 115 power contact, and electromagnet coil 115 power contact is connected to the output point of load element 103, and the relay electromagnet on-off element 132 is connected in series, and the relay power supply overload device is provided with a relay start The button 116 and the relay disconnect button 117, the electromagnet coil 115 power supply input or the solenoid coil 114 input front, the relay electromagnet start-off element 132 is connected in series, the relay disconnect button 117 is connected with the load element 103 contact through the relay start button 116, The relay maintains the contact point 102 of the conductive sheet in contact with the power supply ON output point 112, presses the relay disconnection button and presses 117, then disconnects the power supply of the electromagnetic coil 115, and when using the relay power supply overload device, input at the power contact point of the electromagnetic coil 114 Power supply, press the relay start button 116, through the power input point 113, the load element 103 makes the power supply contact of the solenoid coil 115 turn on the power supply, at this time the electromagnet 107 generates magnetic attraction, and the magnetic attraction movable piece 108 is sucked down, and the conductive piece The contact 102 is in contact with the ON output contact 112 to output voltage; if the relay needs to stop power supply, press the relay disconnect button 117 to disconnect the power supply of the solenoid coil 115, and the spring 106 will bounce the magnetic movable piece 108 back to its original position. position, the conductive sheet contact 102 is disconnected from the ON output point 112, contacts with the NC output contact 111, and the power supply is disconnected. When the power is in use, the magnetically attracted movable sheet 108 is sucked down, and the conductive sheet contact 102 is connected. When the ON output contact 112 is touched, if the output voltage is short-circuited and a large current is generated, the load circuit voltage drops due to the electromagnet being connected in series with the relay electromagnet opening and closing element 132, or the voltage of the load circuit drops to the point where the electromagnet needs to be switched on and off, and the electromagnet 107 Insufficient voltage, the generated electromagnetic force is not enough to attract the magnetic movable piece 108, so the magnetically attracted movable piece 108 is released, and the conductive piece contact 102 is disconnected from the ON output contact 112 within microseconds. When overloaded, then The power supply is disconnected by the load element 103, and the temperature sensing element 119 can also be installed above the load element 103. When the load element is overloaded to generate high heat, the resistance of the temperature sensing element 119 increases to start and break the power supply of the electromagnet. In the utility model, the relay and the load The combined application of components reduces the volume of the device, provides protection for the insulation layer of the power supply wire used, prevents fire and product burnout caused by the fire of the power supply wire, and improves the safety of power supply. the

Fig. 1B is a schematic diagram of a relay electromagnet to improve the on-off power supply device, the relay is activated by hand pressing the button, the relay magnetically attracts the movable piece, the magnetically attracts the conductive piece and the relay power supply overload device that quickly disconnects the power supply to reduce the voltage of the electromagnet. the

A relay electromagnet improves the on-off power supply device, a relay electromagnet and a power supply overload device. In practical applications, in order to prevent the relay voltage from being insufficient, the start button 116 is pressed, and the electromagnet 107 has a gap between the magnetically attracted movable piece and the magnetically attracted position. distance, when the voltage is lowered, the magnetic attraction force is insufficient, so the hand press button 129 is pressed down, and the magnetic attraction movable piece of the relay is started to conduct electricity. If the electromagnet needs to be disconnected, then press the relay disconnect button 117, the above circuit button is started and the button is turned on and off and the hand press button is pressed to make the conductive sheet contact conduct the electromagnet power supply, and an appropriate button can be selected, such as one or More than one button is used to control the device. For example, the working voltage of an electromagnetic device produced by a relay manufacturer is 110 volts. Press the start button, the electromagnet can magnetically attract the movable piece 108 of the relay, so that the contact 102 of the conductive piece is turned on to the power output. If the voltage drop is below 50%, the electromagnet 107 will release the conductive sheet contact 102 due to insufficient magnetic attraction. The key point of the utility model is that, for example, the original set voltage is 110 volts, calculated with 100%. The utility model is applied between 75% of the starting voltage and 35% of the release voltage of the relay electromagnetic device, that is, it works within the voltage range of the starting voltage and the release voltage. If the power supply voltage is reduced to 100 volts, the voltage of the electromagnetic device drops to 70 volts. Pressing the button by hand can make the electromagnetic device magnetically attract and still maintain the relay, and the electromagnetic device 107 magnetically attracts the movable piece 108, so that the conductive piece contact 102 conducts the output power. If the relay electromagnet 107 magnetically attracts the movable piece, so that the conductive sheet contact 102 conducts the output power, and when the wire is short-circuited, because the electromagnet 107 electromagnet coil 115 power supply is connected in series with the relay electromagnet on-off element 132, the default is increased to The electromagnet is required to turn on and off the power supply, which can shorten the time for the voltage to increase from 75% to 50%, so that the electromagnet is released immediately and the output power is disconnected. By applying the utility model, the disconnection time can be shortened by 30%, and the wires can be effectively prevented from igniting. However, if the general voltage power supply wire is short-circuited, the voltage must be reduced from 100% to 35%, and the time to disconnect the power supply is 30% longer, which will cause the power wire to catch fire and cause a fire. If the voltage is applied within 75% to 50%, the above The voltage of the relay electromagnet is only within the above percentage range and not an absolute percentage. Each manufacturer can specify the voltage range according to the actual situation. The application of the utility model can also be selected according to the actual situation. For example, according to the relay electromagnet 107 Performance depends. Therefore, the utility model proposes here that the voltage of the relay electromagnet 107 is the voltage at the start of the button 116 electromagnet 107 magnetically sucking the movable piece to make the conductive piece contact 102 output the power supply, until the electromagnetic device releases the magnetically sucking movable piece to make the conductive The sheet contact 102 disconnects the voltage of the power supply. Within this voltage range, by reducing the voltage of the electromagnet to start the magnetically attracted movable sheet 108 or increasing the voltage of the electromagnet 107 to disconnect and release the magnetically attracted movable sheet 108, all can be regarded as the embodiment of the present invention. The design and application of the design and application all belong to the protection scope of the claims of the utility model, and are not between 75% and 50% of the fixed percentage; further, if the power supply of the relay electromagnetic device is provided with the original specification, the electromagnetic device can be improved by increasing the relay electromagnetic device Connect the on-off element 132 in series to improve the on-off power supply voltage of the electromagnet 107. Of course, the current specification voltage of the relay can also be used, such as 110 volts to start the magnetically attracted movable piece of the relay electromagnet, and 33 volts to release the relay electromagnet 107. The magnetic suction movable piece 108 cooperates the application of the utility model. For example, the manufacturer changes the electromagnet 107 to start the relay electromagnet voltage at 110 volts, and the relay electromagnet release voltage is 70 volts; or the startup relay electromagnet voltage is at 90 volts. The release voltage of the relay electromagnet is 70 volts, and there is no need to connect the electromagnet opening and breaking element 132 in series. It can be regarded as a specific design application of the present utility model, and all belong to the protection scope of the claims of the present utility model. Of course, the relay electromagnet 107 can also be used Stable voltage or current is used as the breaking element 132, which can be regarded as the specific design and application of the utility model, and all belong to the protection scope of the claims of the utility model, so when a short circuit occurs in the power supply wire, a large current is generated, and the power supply of the relay electromagnetic device is instantly reduced to the electromagnetic The device 107 releases the disconnection voltage, and the magnetically attracted movable piece makes the contact of the conductive piece break away from the output power supply. Moreover, the relay solenoid opening and breaking element 132 circuit is connected in series with the suitable position device inside or outside the relay solenoid, so as to increase the voltage of the starting and breaking solenoid or Current, up to microseconds to quickly disconnect the power supply, applied to the following circuits such as sockets or electrical switches or electrical product switches, to protect the power supply wire from short circuit or overload to disconnect the power supply, to prevent safety accidents that cause product burns or wires to catch fire. Reach microseconds to quickly disconnect When the power is turned on, the relay electromagnetic device can also be provided with a circuit button to start and a hand press button to make the conductive sheet contact conduct the electromagnetic device power supply in practical applications, and the application button is used to disconnect the power supply when it is disconnected. the

Fig. 1C is a schematic diagram of a relay electromagnet to improve the on-off power supply device and the portable socket of the relay. the

A relay electromagnet improves the on-off power supply device, the relay power supply overload device 99, the socket or the output power supply 130 is provided with an outer casing 131, and the plug input power supply is connected in series with the voltage drop resistor 136 to the C of the load element 103 to the relay power supply input 113 Pin position, the power supply of the solenoid coil 115 is connected to a resistance 134 to the solenoid start button 116 by the C foot position of the input power supply 113, and the disconnect button 117 is connected to the solenoid coil 115, and the other pole power supply is connected to the relay solenoid start-off element 132 To the electromagnet 114 solenoid coil power supply, the electromagnet disconnect button 117 is pressed to disconnect the electromagnet power supply. To use this relay 99, press the electromagnet start button 116. The elastic conductive sheet 133 contacts the C pin position of the input power supply 113. The elastic conductive sheet 133 of the relay maintains contact with the power supply, the relay action indicator 118 lights up, the conductive contact 102 contacts the ON output contact 112 after the relay 99 is magnetically attracted, and the ON output contact 112 is connected to the power supply, and the ON output contact 112 of the relay is connected to the socket or the output power supply 130, To stop the output power of the relay 99, press the electromagnet disconnect button 117 and the elastic conductive sheet 133 to separate from the ON output contact 112, the electromagnet power supply is turned on and off, and the electromagnet pulls back the spring to turn on and off the power in microseconds, and the relay 99 conducts electricity. The contact 102 returns to disconnect the NC output contact 111, and the socket or the output power supply 130 has no power supply. Therefore, when the power wire is short-circuited and a large current is generated, the power supply of the relay electromagnetic device is instantly reduced to the point where the electromagnetic device 107 releases the disconnection voltage, and the magnetically attracted movable piece makes The contact of the conductive sheet is separated from the output power supply, and a solid-state relay SSR can also be used, and its function is the same as that of the electromagnetic relay; the one-pole power supply is input to the load element 103, and the load element is overloaded and tripped. A thermal switch reset button 122 is set, and the load element The output is connected to the relay C input, the output contact terminal of the relay ON conductive sheet is connected to the socket or the power supply output is connected to the load 130, and the other pole of the socket is connected to the power supply pole; the socket is combined with the relay 99 and the load element 103 into a box body; it can be divided into The relay 99 and the load element 103 are combined into a box body; it can be further divided into a box body with the relay 99, the socket can be applied as a combination of various extension cord sockets or not connected to the socket, the power output is connected to the load, and the relay solenoid coil 114 is connected from the input power supply to the solenoid on-off element 132, and the power supply of the relay solenoid coil 115 is connected to a resistor 134 in series at the position of the C pin of the input power supply 113, and then connected to the solenoid start button 116. State, if the socket is plugged into the power supply output short circuit or load terminal short circuit, the warning light or warning sound reminding device 135 immediately warns or the normal use light does not light up, the relay electromagnetic device is the same phase power supply, even if the electromagnetic device start button 116 is pressed, the resistance 134 acts as Short-term absorption of current will not cause sparks to burn the contacts, the relay solenoid will not operate, and the resistor may not be installed. The relay used in this case is not limited to specifications, so this creation can prevent short-circuiting of the power supply and overloaded wires. Safe use of the product. the

FIG. 1D is a schematic diagram of a relay electromagnet to improve the on-off power supply, based on the positions of the three buttons in FIG. 1A . the

A relay electromagnet improves the on-off power supply device. The portable socket 130 is provided with a socket shell 131 provided with a power output switch 137. The switch can be applied to a thermal metal sheet switch, a socket power supply blade 138, a power indicator light 118, and a relay start button 116. 1. Disconnect button 117, please refer to Fig. 1A. When the power output switch 137 is to be turned off, press the start button to turn on the red light and then press the relay start button 116. To stop using, press the disconnect button 117 to disengage the relay power supply. The load element is provided with an overload trip thermal switch reset button 122 . the

Fig. 1E and Fig. 1F are schematic diagrams of a relay electromagnet to improve the on-off power supply device, the relay and the extension cord socket of the load element. the

A kind of relay electromagnetic device improves on-off power supply device, relay 99 and load element 103 group boxes are connected extension line socket 130 or as shown in Fig. 1F plug connects extension line and connects relay 99 and load element 103 box body extension line and connects socket. the

FIG. 1G is a schematic diagram of a relay electromagnet to improve the on-off power supply device, the relay and the extension cord socket of the load element. the

A relay electromagnet improves the on-off power supply device. The plug and the load element or the relay are a box body extension line connected to the relay 99 or a load element and a box body extension socket 130. The plug, the relay, the load element, and the socket can be divided into plugs The voltage drop element 136 is connected in series with the load element 103 and the socket 130 is connected in series. The socket, relay and load can be combined into a box, and two of the socket, relay and load can also be combined into a box. , Optional combination socket. The connection sequence of the three components of the socket, the relay and the load can be adjusted arbitrarily, and they can be properly arranged in the circuit from the power plug to the socket as required. the

Fig. 2A, Fig. 2B, Fig. 2C and Fig. 2D are schematic diagrams showing the appropriate position of the relay electromagnet on/off element load element device circuit combination socket in a relay electromagnet to improve the on/off power supply device and the relay power supply overload device. the

A kind of relay electromagnet improves the on-off power supply device, this diagram is the reduced shell device of Fig. 1A, its operation and use please refer to Fig. 1A or Fig. 1C, only difference is in the front end of one pole of the power supply input load element 103, the rear end or the relay At least one voltage drop resistor 136 is connected in series in the power input, output circuit or power output proper position, the short circuit of the wire will cause a voltage drop, so that the relay solenoid disconnects the power supply position in microseconds, please refer to Figure 1D for the socket part. the

Fig. 2A is a structural diagram of a relay electromagnet to improve the on-off power supply device, a combination of resistance or inductance or electronic component circuit button shrapnel in the relay power supply overload device, and the circuit or load component device at the appropriate position of the relay. the

A relay electromagnet improves the on-off power supply device. This diagram is the reduced shell device in FIG. 1C. Please refer to FIG. At least one voltage drop resistor 136 is connected in series in the power input, output circuit or appropriate position of the power output, and the short circuit of the wire will generate a voltage drop, so that the relay solenoid disconnects the power supply position in microseconds. the

FIG. 2B or FIG. 2C or FIG. 2D is a schematic diagram of a combination structure of a relay electromagnetic device to improve the on-off power supply device, a resistance or an inductance, or an electronic component circuit button shrapnel in the relay power supply overload device. the

A relay electromagnet improves the on-off power supply device, please refer to Figure 1A, its operation and use please refer to Figure 1A, only the different load element devices are at the front and rear ends of the input load element 103 at one pole of the N-pole power supply or the input and output of the relay power supply In the terminal circuit or at the appropriate position of the power output, at least one voltage drop resistor 136 is connected in series. Please refer to Figure 2C to use 2P contacts. For loads, or as shown in Figure 2D with current comparators and other electronic component circuits, there are logic circuits, analog circuits, and those that use current or voltage to control the relay electromagnetic device to start or break the circuit. When the short-circuit current or voltage increases or decreases, the electronic circuit or current comparator Wait for the circuit of electronic parts, control the circuit breaker of the relay electromagnetic device, and make the relay electromagnetic device disconnect the power supply position in microseconds, all of which can achieve the relay disconnection power supply. the

Fig. 3A is a schematic diagram of a relay electromagnet to improve the on-off power supply, the load element is a thermal metal sheet switch, and the thermal metal sheet is fixed on the voltage drop resistance terminal. the

A relay electromagnet to improve the on-off power supply device, in which the structure of the thermal sheet metal switch is not included in the novelty of this case, the feature of the new model of this case is that the thermal sheet metal switch or The same is true for the non-fuse switch; for any material that can conduct voltage and current, there is resistance in it, overload or short circuit exceeds the set current, the voltage drop resistance will cause a temperature rise, and the voltage will be reduced and the current will be conducted. One end of the movable metal sheet 124 is fixed on the input conductive terminal 120 of the voltage drop resistor 136, and the other end of the thermally movable metal sheet 124 is provided with a contact 125, which contacts 125 with the contact point 126 of the voltage drop resistor terminal fixed on the output conductive terminal 121 of the voltage drop resistor 136, The thermal metal switch 103 uses the voltage drop resistor 136 as the fixed input of the thermal metal sheet 124, and the output is a conductive terminal. When an overload occurs or a short circuit occurs in the wire, a large current is generated, and high heat is generated by the voltage drop resistor 136. The moving metal sheet 124 accelerates to disconnect the power supply or the voltage drop disconnects the power supply of the relay electromagnet 107, the thermal moving metal sheet 124 inputs the conductive terminal contact 120 or outputs the conductive terminal contact 121, and at least one end or two terminals of the device are connected to a voltage drop resistor or a voltage drop resistor in series. The drop resistor can be used as a thermal metal sheet switch, and the drop resistor 136 can be round or flat or in a suitable shape. the

Fig. 3B is a schematic diagram of a relay electromagnet to improve the on-off power supply device, the load element is a thermal metal sheet switch, and the thermal metal sheet is fixed on the output and input terminals and connected in series with the voltage drop resistance terminal. the

A relay electromagnet improves the start-off power supply device, wherein one end of the thermal metal sheet 124 is fixed on the conductive terminal 120 and connected in series with a voltage drop resistor 136 to input the conductive terminal, and the other end of the thermal movable metal sheet 124 is connected to the conductive terminal 121 with a contact point 125 and then connected in series Connected to the voltage drop resistor 136, which is fixed on the conductive terminal 120 and then connected in series with the voltage drop resistor 136. The contact point 126 is set on the power output conductive terminal. The thermal sheet metal switch 103 uses the voltage drop resistor 136 as a thermal sheet metal switch. 103 input and output are conductive terminals, when overload or short circuit produces high current, high heat is generated by the pressure drop resistor 136, and the heat is conducted to the thermal moving metal sheet 124 to accelerate disconnection of the power supply or voltage drop to disconnect the power supply of the relay electromagnetic device 107; The voltage drop resistor 136 is connected in series, and the thermal metal sheet 124 or no-fuse switch can be selected appropriately. The conductive terminal 120, the conductive terminal 121 and the voltage drop resistor 136 are connected in series to the application device. The voltage drop resistor 136 can be round or flat strip or Fits the shape. the

In order to improve the disconnection performance of the relay protection, the utility model includes a relay mechanism body, a load element, a relay electromagnet on-off element, a socket, and a voltage drop resistor. Or in the appropriate position of the relay power input, output circuit or power output, the short circuit of the wire will cause a voltage drop to make the relay electromagnetic device disconnect the power supply in microseconds, and at least one voltage drop resistor is connected in series. Absorbing a large current drop, the power supply of the relay electromagnetic device is instantly reduced to the switching voltage of the electromagnetic device, and the spring makes the contact of the conductive sheet quickly separate from the conduction output contact within microseconds. the

Relay solenoid on and off components, relay solenoid on and off components, including for example transistors or resistors or inductance or high current, high voltage short circuit components lightning arresters or thermistors or electronic component circuit combinations, or set steady voltage or steady current on and off The electromagnet is connected in series with the relay electromagnet to increase the on-off voltage of the relay electromagnet, causing the resistance value or inductance or current or voltage to reach the set voltage or the current or short-circuit voltage to drop, disconnecting the power supply of the relay electromagnet coil, which can be regarded as the utility model. The specific design and application of the new model all belong to the protection scope of the claims of the utility model. the

In practical application, at least one pole of the relay solenoid power supply is connected in series with the relay solenoid start-off element, and a load element is connected in series with an appropriate position of the relay power supply input or output circuit to form a combination of a relay solenoid and a load element. the

Load elements, including metal sheets or thermal moving metal sheets or thermal moving metal sheet switches or non-fuse switches using the principle of thermal moving sheets or PPTC resetting fuses or fuses or transistors or resistance wires or inductors, etc., can be caused by different currents The material with temperature rise change is connected in series with the relay input or output power supply. When the load is overloaded, the load element will heat up. The temperature sensing element will sense heat or transfer heat due to the contact with the load element, resulting in resistance or current or inductance or magnetic reed. The switch reaches the set temperature, disconnecting or activating the relay solenoid coil power. the

In practical applications, the thermal metal sheet switch for overload protection of load elements has automatic reset type and manual reset type, and there are many types of fuses or PPTC reset type fuses. The components and parts in the circuit all belong to the scope of the claims of the utility model. the

The load element can be installed inside and outside the fixed seat of the relay mechanism or the shell, and combined with the relay to form a load element relay, or the load element can be installed in the load element box combined with the relay shell, or the load element and the relay shell can be combined in a box at an appropriate position. Control the load element by wire connection. the

In practical application, the relay power supply overload device of the utility model can be applied to various sockets or automatic control relays or switches of electrical products to protect the power supply wires during short circuit or disconnect the power supply when overloaded, so as to prevent the products from being burned or the wires from catching fire . the

In practical application, the relay power supply overload device of the present utility model, how to connect the on-off element of the relay electromagnetic device and the load element with the relay and control the conduction and shutdown of the relay can design the required circuit according to the needs of the user, because There are many types, such as current counters and other electronic parts circuits, logic circuits, analog circuits, current or voltage control relay solenoids to start or break, when the socket output wire short-circuit current increases or decreases, current counters or electronic components, Control the circuit breaker of the relay electromagnet, and the relay disconnects the power supply, all of which can achieve the relay disconnection of the power supply. The relay electromagnet improves the on-off power supply device includes: a voltage drop resistor, a load element, and the load element is a thermal metal sheet switch or No fuse switch, at least one pole or two poles are connected in series with a voltage drop resistor and a load element, the input or output of the switching power supply is provided with a conductive terminal as a voltage drop resistor, or the input or output of the switching power supply is provided with a conductive terminal, Then connect the voltage drop resistor in series, or only install the load element and connect the voltage drop resistor in series to output. The voltage drop resistor is used as a connection terminal and connected in series in the output or input circuit of the load element, wherein the terminal or wire diameter is not limited to any connection form, and all belong to the scope of the new device. the

Preferably, a relay electromagnet improves the on-off power supply device, which is provided with a hand-pressed button, which can be pressed to start, or an additional switch is provided to disconnect the power supply of the electromagnet, and the magnetically attracted movable piece is separated from the power supply. the

Preferably, a relay electromagnet improves the on-off power supply device, the relay power supply overload device is provided with a hand-pressed button, which can start and disconnect the electromagnet power supply. the

Preferably, the voltage of the relay electromagnetic device is between the start button, the electromagnetic device magnetically attracts the movable piece, and the contact of the conductive sheet starts to output power, and the voltage range of the electromagnetic device releases the magnetically attracted movable piece. The voltage of the magnetically attracted movable piece, so that the output power of the contact of the conductive piece belongs to the protection scope of the claims of the utility model, and it is not between the above-mentioned fixed percentage of 75% to 50% of the voltage range. the

Preferably, if the power supply of the relay solenoid is provided with original specifications, the voltage of the solenoid can be reduced or raised within the set magnetic attraction range through the circuit of the relay solenoid opening and closing element. When a short circuit occurs in the power supply wire to generate a large current, The power supply of the relay electromagnetic device is instantly reduced to the disconnection voltage of the electromagnetic device, and the magnetically attracted movable piece is released, so that the contact of the conductive piece is separated from the output power supply. the

A relay electromagnet improves the on-off power supply device, the relay power supply overload device, the load element is connected in series at the appropriate position of the relay power input or output circuit, the device is installed at the appropriate position on the relay mechanism fixing seat or the relay shell or outside the relay, and is controlled by wire connection The load element, the load element can be a thermally movable metal sheet or a PPTC resetting fuse or a fuse or a transistor or a resistance wire, etc. the

Preferably, the load element is connected to the output or input circuit of the power supply, connected to one pole of the socket, and the other pole of the socket is connected to the output contact terminal of the relay ON conductive sheet. The socket, the relay and the load element are combined into a box; it can be divided into relays Combined with the load element, the extension wire and the socket are combined into a box body, which can be further divided into a box body connected with the load element and the extension line plug, connected to the relay and the socket group, and can be divided into a relay into a box body, and the socket can be used for multiple applications. A combination of extension cords and sockets or not connected to the socket, the output of the power supply is connected to the load, the output of the power plug is connected in series with the voltage drop resistor, the load element is connected in series, the relay is connected in series, and the socket is connected in series, and the plugs of the above five components can be interchanged and connected in series in the socket circuit, or The plug is connected in series with the wire and the socket circuit can be interchanged in series, or the plug is connected in series with the voltage drop resistor and the load element is connected in series with the socket. The socket combination in the above circuit, the socket has at least one box body, and can be applied as a combination of various extension cord sockets Or not connected to the socket, the power output is connected to the load, and the voltage drop resistor is used as the protection of the plug to socket circuit, which belongs to the patent scope of this case. Prevent the occurrence of power short circuit and overload wire fire accidents, and ensure the safety of the product. the

In practical applications, the control circuit for starting and disconnecting the relay is relatively simple, and there are many control methods, which will not be repeated here. the

Preferably, the power supply of the solenoid coil is connected in series with a resistor or the same application part as the opening and breaking element from the position of the input power pin, and the resistor is connected to the start button of the solenoid. The start button causes burnout. This resistance can be used as a short-term current absorption when the solenoid start button is pressed, and a warning light or warning sound reminder device can be installed. The warning light or warning sound reminder device is plugged into the power supply. If the socket output is short-circuited Immediate warning, this resistor is optional. the

Voltage drop resistance, for example, any metal material that can conduct voltage and current has internal resistance. When the set current exceeds the set current, the voltage drop resistance will cause a temperature rise, which reduces the voltage and conducts the current. The voltage drop resistance is the conduction voltage. , current alloy wire, copper wire, heating wire, resistance or metal wire material, there is resistance inside, because the voltage drop resistance will cause temperature rise or high heat according to the short circuit current, the voltage drop resistance is connected in series with the application device from the power plug to the socket Among the circuits, all belong to the patent scope of the present invention. Among them, the novel feature of this case is that the voltage drop resistance is applied to the thermal metal sheet switch or the similar no-fuse switch in the load element of this case, and the load element is a thermal metal switch. One end of the thermally movable metal sheet is fixed on the input conductive terminal of the voltage drop resistor, and the other end of the thermally movable metal sheet is provided with a contact, which is in contact with the contact fixed on the output conductive terminal of the voltage drop resistor power supply, or one end of the thermally movable metal sheet is fixed. Connect the voltage drop resistor in series to the conductive terminal and input the conductive terminal, set a contact point on the conductive terminal of the thermally movable metal sheet and connect the voltage drop resistor in series, connect the voltage drop resistor in series with the conductive terminal fixed on the conductive terminal, and set a contact point on the conductive terminal of the power supply output , the thermal metal sheet switch uses a voltage drop resistor as the input of the thermal sheet metal switch, and the output is a conductive terminal. When an overload or short circuit generates a large current, high heat is generated by the voltage drop resistor, and the heat is conducted to the thermal sheet metal to accelerate disconnection. The power supply or the voltage drop disconnects the power supply of the relay electromagnetic device; the conductive terminal is connected in series with a voltage drop resistor, and a thermal metal sheet or a no-fuse switch can be selected appropriately. The conductive terminal and the voltage drop resistor are connected in series to the application device. , The body of the voltage drop resistor is slightly changed, such as a section of depression or protrusion. The voltage drop resistor is used as a connection terminal and connected in series with the output or input circuit of the load element, and the terminal or wire diameter is not limited to any connection form. As a current drop, it belongs to the patent scope of this new model, and the voltage drop resistor can also be selectively installed. , The voltage drop resistor can be round or flat strip or suitable shape. The input conductive terminal contact or the output conductive terminal contact of the thermally movable metal sheet is equipped with at least one end or two terminal voltage drop resistors or a voltage drop resistor connected in series, which can be used as a thermally movable metal sheet switch. the

Moreover, the socket combination can be divided into a power plug, a voltage drop resistor, a load element and a socket as a box body, and can be further divided into a power plug connected in series with a voltage drop resistor connected in series with a load element connected in series with a power line output. At least one pole or two poles of the output are connected in series with a voltage drop resistor, which is used for power supply to socket circuit protection, and the voltage drop resistor is connected in series with the load element and connected in series with the relay. The resistance is the protection of the plug-to-socket circuit, and the load element is a thermal switch or a non-fuse switch. The above combinations can be implemented independently, which can prevent the wire from igniting caused by the short circuit of the power supply and ensure the safety of the product, all of which belong to the patent of this case rangers. the

From the above detailed description of the preferred embodiments, it is hoped that the characteristics and spirit of the present utility model can be described more clearly, and the scope of the present utility model is not limited by the preferred embodiments disclosed above. On the contrary, the purpose is to cover various changes and arrangements with equivalents within the scope of the patent scope of the utility model. the

Claims (10)

1. a relay electromagnetic device raising breaks supply unit, it is characterized in that, described relay electromagnetic device raising breaks supply unit and comprises: dropping resistor, load elements, the relay electromagnetic device, electromagnetic device breaks element, socket and solenoid, but described dropping resistor has the conducting voltage of resistance in being, the material of electric current, described dropping resistor can install at attaching plug to the socket appropriate location, export at least one utmost point or two utmost points serial connection dropping resistor at attaching plug, load elements, relay and socket, described load elements moves the sheet metal switch for heat or uses the no-fuse switch of hot moving plate principle, at least one dropping resistor serial connection load elements inputs or outputs end, or the serial connection relay power inputs or outputs end; Attaching plug serial connection dropping resistor, load elements, relay and socket, or plug serial connection dropping resistor, load elements and socket, or plug serial connection dropping resistor, relay and socket, or plug is connected in series dropping resistor, load elements, lead to socket circuit; Power supply one utmost point connects electromagnetic device one utmost point, solenoid disconnects button by one and is connected with load elements with a startup button or elastic conducting strip, another utmost point of relay electromagnetic device connects and breaks element and connect power supply output or input, described startup button, disconnects series resistor in the key circuit.

2. relay electromagnetic device raising according to claim 1 breaks supply unit, it is characterized in that, power supply one utmost point connects electromagnetic device one utmost point, solenoid disconnects button by one and is connected with load elements with a startup button or elastic conducting strip, depress the startup button, make contact conducting electromagnetic device power supply, disconnect then pressing and disconnect button disconnection electromagnetic device power supply, another utmost point of relay electromagnetic device connects electromagnetic device and breaks element and connect power supply output or input, series resistor in described startup button, the disconnection key circuit installs a warning lamp or caution sound alarm set.

3. improve according to the described relay electromagnetic device of claim 1 and break supply unit, it is characterized in that, described relay electromagnetic device improves and breaks supply unit and also comprise: electromagnetic device pedestal, but spring, magnetic moving plate;

But described electromagnetic device pedestal upper end is provided with described magnetic moving plate, but described magnetic moving plate is provided with described spring, but described spring connects described magnetic moving plate and described electromagnetic device pedestal; But the conducting strip contact of described elastic conducting strip is fixed in described magnetic moving plate top; Described relay electromagnetic device connects electromagnetic device and breaks element, produce big electric current in the short circuit of relay electromagnetic device out-put supply, voltage descends, relay electromagnetic device power supply moment is reduced to be set electromagnetic device and breaks voltage, makes described elastic conducting strip contact break away from the conducting output contact fast in microsecond by described spring.

4. improve according to the described relay electromagnetic device of claim 1 and break supply unit, it is characterized in that, serial connection dropping resistor and load elements, electrical equipment input C terminal is succeeded in the output of described attaching plug serial connection dropping resistor serial connection load elements, by relay ON conducting strip terminal out-put supply combination hub, another utmost point power supply connects input socket; Plug and relay and load elements and socket group are a box body, or plug and relay assembly are a box body, described plug is applied as multiple extended line to socket box body and makes up, power supply output connects load, or the attaching plug extended line is connected in series dropping resistor, load elements or relay and socket is a box body.

5. relay electromagnetic device raising according to claim 1 breaks supply unit, it is characterized in that, attaching plug exports in the socket circuit, at least one utmost point or two utmost points serial connection dropping resistor, load elements and socket, or the attaching plug power line exports in the socket circuit at least one utmost point or two utmost points serial connection dropping resistor, load elements, relay and socket to; Or thermal switch or no-fuse switch attaching plug export in the socket circuit at least one utmost point or two utmost points serial connection dropping resistor, the output of serial connection lead to.

6. improve according to the described relay electromagnetic device of claim 1 and break supply unit, it is characterized in that, described attaching plug serial connection dropping resistor and load elements, load elements serial connection relay input terminal, the combination of relay output end substring combination hub box body, or attaching plug serial connection dropping resistor, load elements or the combination of the moving element serial connection of heat socket box body, or attaching plug serial connection dropping resistor, load elements or relay, power line output or serial connection receptacle combinations, establish load elements or relay assembly in the socket.

7. described relay electromagnetic device raising breaks supply unit according to claim 6, it is characterized in that described attaching plug and dropping resistor, load elements, relay and socket group are a box body; Or attaching plug and dropping resistor, load elements and socket are a box body, or attaching plug is connected in series dropping resistor, load elements or relay, power line output serial connection relay serial connection socket, or attaching plug is connected in series dropping resistor, load elements or relay, power line output, or export socket at the attaching plug power line, at least one utmost point of socket or two utmost points serial connection dropping resistor, serial connection load elements, serial connection relay serial connection socket, or not being connected in series dropping resistor in the socket circuit, described load elements is thermal switch or no-fuse switch.

8. a relay electromagnetic device raising breaks supply unit, it is characterized in that, described relay electromagnetic device raising breaks supply unit and comprises: dropping resistor, load elements, mains switch, relay and the combination of plug box body, described load elements is the moving sheet metal switch of heat or no-fuse switch, at least one utmost point or two utmost points serial connection dropping resistor, described Switching Power Supply inputs or outputs and is provided with conducting terminal is dropping resistor, or described Switching Power Supply inputs or outputs and is provided with conducting terminal, is connected in series dropping resistor again.

9. relay electromagnetic device raising according to claim 8 breaks supply unit, it is characterized in that, attaching plug exports in the socket circuit, at least one utmost point or two utmost points serial connection dropping resistor, load elements and socket, or power supply exports in the socket circuit at least one utmost point or two utmost points serial connection dropping resistor, load elements, relay and socket to; Or thermal switch or no-fuse switch power supply export in the socket circuit, and attaching plug exports in the socket circuit, at least one utmost point or two utmost points serial connection dropping resistor, the output of serial connection lead, and described dropping resistor can install at attaching plug to the socket appropriate location.

10. described relay electromagnetic device raising breaks supply unit according to Claim 8, it is characterized in that, described attaching plug serial connection dropping resistor and load elements, load elements serial connection relay input terminal, the combination of relay output end substring combination hub box body, or the combination of the moving element serial connection of attaching plug serial connection dropping resistor, load elements or heat socket box body, or attaching plug serial connection dropping resistor, load elements or relay, power line output.

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