KR20120058376A - Switch for prevention of inrush current shock and cut-off standby power - Google Patents

Abstract

PURPOSE: A switch for prevention of rush current protection and cutting off standby power are provided to obtain a double pole contact switch by including a terminal unit and a power on unit. CONSTITUTION: First and second terminals(22,24) are connected to external power supply. First and second open and close terminals(23,25) are electrically connected to an internal circuit(1) of an electronic good. A power on unit contacts the first and the second open and close terminals with the first and the second terminals. An active switch(70) generates a control signal according to the operation of the power on unit. The active switch operates the internal circuit of the electronic goods.

Description

SWITCH FOR PREVENTION OF INRUSH CURRENT SHOCK AND CUT-OFF STANDBY POWER}

The present invention relates to a switch for preventing inrush current shock and blocking standby power. More specifically, the present invention intrudes when the electronic product is turned on without changing a power supply mechanism of an existing electric / electronic product (hereinafter referred to as electronic product). In order to effectively prevent damage to components, malfunctions and deterioration of electrical quality due to electric shock caused by electric current, and to switch off the inrush current shock prevention and standby power to effectively cut off unnecessary standby power when the electronic product is turned off. will be.

In general, a transient phenomenon occurs in which a current higher than the normal current flows at the instant of power supply to a distribution circuit or an electric device. This is called an inrush current. In this inrush current, the "Hot Load Current" generated in the first stage is generated several times or several times at the same time as the power is turned on. Will result. At this time, "Hot Load Current" generated in one step of inrush current is initial inrush current generated immediately after the line is input, magnetization current of iron core equipment such as transformer motor, current for temperature rise of incandescent bulb, etc. It has a very large value of more than 10 times, but the duration is short time characteristic of several Hz. Although inrush current limiting circuits are used to block the electrical shock of the inrush current affecting such electronic products, there are various problems.

On the other hand, in general, in the use of electronic products such as home appliances, office equipment, industrial equipment, energy consumption due to standby power is known to be considerable. For example, in Korea, standby power consumption is known to reach 11% of the total consumption per household (306kWh). If this is expanded to 15 million households, energy of 520 billion won is consumed every year due to standby power.

The most effective way to prevent such standby power is to separate the power input from the outside (usually by plugging the plug into the wall outlet) (that is, the plug from the outlet). Has not been effective for many years due to user inconvenience. In addition, various automatic or manual power strips (multi-outlet power strips) using a contact switch have been proposed and used, but there is a problem of dually operating a switch of a power strip and an electronic product when power is supplied.

On the other hand, Korean Patent Publication No. 10-0945213 "Standby power cut-off device and control method thereof" proposes a standby power cut-off device having a knob switch, a first switch unit, a second switch unit and a control unit. In this case, the knob switch turns on / off the power of the electronic product. The first switch unit detaches or attaches one contact point and the other contact point of the power cable to the power supply device in the electronic product according to the operation of the knob switch. The second switch unit generates a power on signal or a power off signal of the electronic product in response to the operation of the knob switch. When the power-on signal or the power-off signal is input from the second switch unit, the controller automatically cuts off standby power consumed in the electronic product by controlling the operation of the first switch unit.

Such a prior art is effective in blocking standby power, but there is a problem in reducing an electrical shock or spark of the electronic product due to an inrush current when turning on the electronic product. That is, in the prior art, when turning off the electronics, a software signal or a Tact switch (semiconductor switch) of the second switch unit can turn off the electronics safely. The fluctuations in can affect the electrical quality, which can impact or break down the electronics.

More specifically, such a prior art has a structure in which a contact switch (first switch) and a tact switch (second switch) are simultaneously contacted by a knob switch when the power is first turned on. However, this operation structure is like turning on the electric appliance by the contact two-pole switch with the tact switch contacted, which affects the transformer and its subordinate parts by inrush current and also affects other equipment by malfunction. . In addition, there is a disadvantage in that the electronic product is damaged by the instantaneous inrush current when the ON / OFF operation is continued by using the latching relay to the power supply first switch.

1 is a view showing a time-current characteristic curve for explaining inrush current.

Referring to FIG. 1, not only an overcurrent caused by inrush current when turning on an electronic product but also an unbalanced voltage sent to a control circuit or various parts through a power supply may cause a failure of a main part. do. On the other hand, Switching Mode Power Supply (SMPS), which is positioned as a main power supply device, is a power supply device that converts AC supplied from commercial power into DC for various devices such as computers, communication devices, and home appliances. Has a delay time (some 0.5 seconds) of the switch process for converting AC to DC, and generates noise and electromagnetic waves. Therefore, in general, do not use the plug in the outlet with the electronic and electrical equipment turned on. Instead, plug in the outlet and send the control signal to the internal control circuit with a solid state (semiconductor) switch to turn on the product to reduce the electric shock or spark. Use stably.

The present inventors have proposed the present invention based on the understanding of the inrush current and the power supply as described above in the state of recognizing the problems of the prior art.

Therefore, the present invention has been proposed to improve such a conventional problem, and is installed in the inlet line of the power supply (power supply) to maximize the user's convenience without changing the power supply mechanism of the existing electronic products, the inrush current shock It aims to provide a new type of inrush current protection and standby power cutoff that can prevent and prevent sparks, and reliably and effectively shut off standby power even when plugged into an outlet. .

Particularly, the present invention applies a solid state switch and a solid state switch at the same time to turn on one of the buttons so that the delayed unit and the solid state switch do not operate simultaneously when the on button is pressed when the electronic product is turned on. After the two-pole contact switch is activated first to reduce the impact of the inrush current (after a set time), and when an equal voltage is provided to the control circuit and each component in the power supply, a solid state switch generates a control signal. In order to provide a new type of inrush current shock protection and standby power cut-off that can safely turn on the electronics by the internal circuit (central processing unit or control unit) without electric shock or big spark. do.

In addition, the power is cut off by the software of the internal control circuit of the electronic product (eg, the washing machine is automatically shut down when washing is completed), or the control signal is generated by a solid state switch by pressing a remote control reception control signal or an on button. A new form of inrush current shock protection and standby that allows the two-pole contact switch to turn off immediately or at a timed interval by a controller that shuts off standby power when the control circuit device is turned off. It is an object to provide a switch for power off.

According to a feature of the present invention for achieving the above object, to turn on the power input from the outside to the internal circuit (1) of the electronic product, from the outside to the internal circuit (1) when the internal circuit (1) is turned off A switch for turning off the supplied power to cut off standby power, comprising: first and second terminals (22, 24) to which external power input for driving an electronic product is connected; First and second opening and closing terminals 23 and 25 electrically connected to the internal circuit 1 of the electronic product; A power-on unit (30) for contacting the first and second open / close terminals (23, 25) and the first and second terminals (22, 24); An activation switch 70 for generating a control signal (on, off signal) according to the operation of the power on unit 30 to operate the internal circuit 1 of the electronic product; When the electronic product is turned on, the first and second terminals 22 and 24 and the first and second opening and closing terminals 23 and 25 are contacted by the power on unit 30 so that the internal circuit 1 of the electronic product is turned on. ) Is first applied to the power supply and after a predetermined time delay, the activation switch 70 includes a delay unit 50 for generating a control signal (on signal).

In the switch for preventing the inrush current shock and standby power according to the present invention, the internal circuit (1) is the first and second opening and closing terminals (23, 25) and the first and second terminals (22, 24) It is characterized in that it further comprises a controller 80 for controlling to cut off the standby power is automatically opened (isolated) with the contact.

In the switch for preventing inrush current shock and standby power according to the present invention, the delay unit 50 is provided with an operation protrusion 53 for operating the activation switch 70 and the power-on unit 30 Is provided with an on button 32 to generate a control signal (on, off signal) to the activation switch 70, characterized in that the operating projection 53 and the on button 32 is integrally formed do.

The first and second terminals 22 and 24, the first and second opening and closing terminals 23 and 25, and the power-on unit 30 in the switch for preventing inrush current shock and blocking standby power according to the present invention. The delay unit 50 and the activation switch 70 are characterized in that they are installed in a single case 12.

According to the switch for preventing the inrush current shock and standby power according to the present invention, the function of the contact switch is formed through the terminal block 20 and the power-on unit 30, while also obtaining the function of the two-pole contact switch Since there is a function of a solid-state (semiconductor) switch by the activation switch 70, it is safe and maximizes the user's convenience without changing the power supply mechanism of the existing electronics, and the electrical power due to the inrush current at the first turn-on To prevent shock and sparks, the standby state of the 2-pole contactor switch is completely off. In particular, the contact switch is first operated by the delay unit 50 which prevents the activation switch 70 from being activated by the power-on unit 30 at the time of turning on, so that the power supply device does not have a large spark or an electrical shock due to inrush current. After the power is applied to the internal circuit (1) of the electronic product through the predetermined time elapses after the activation switch 70 generates a control signal to operate the internal circuit (1) to turn on the electronic product. Therefore, the electronic device can be safely turned on by the internal circuit (control circuit, that is, the central processing unit or the controller) in one operation without changing the power supply mechanism of the existing electronic product, thereby maximizing user convenience. In addition, the switch for preventing the inrush current shock and standby power in accordance with the present invention is to turn off the electronic products with the software of the control unit or to operate the contactless switch with the on button 32 to generate a control signal (off signal) inside The circuit is turned off and the contact switch automatically turns off immediately or at set intervals as needed, making it convenient and effective to shut off standby power.

1 shows a time-current characteristic curve for explaining inrush current;
2 is a block diagram illustrating a switch for preventing inrush current shock and blocking standby power according to the spirit of the present invention;
3 is a view for explaining the operation of the switch for preventing the inrush current shock and standby power shown in FIG.
4 is a block diagram illustrating a switch for preventing inrush current shock and blocking standby power according to a preferred embodiment of the present invention;
Figure 5 is a schematic perspective view showing the main configuration of the switch for preventing the inrush current shock and standby power in accordance with a preferred embodiment of the present invention;
6 is an exploded perspective view for explaining the main configuration of the delay unit in FIG.
7 is a view for explaining the operation of the switch for preventing inrush current shock and standby power in accordance with a preferred embodiment of the present invention.

FIG. 2 is a block diagram illustrating a switch for preventing inrush current shock and blocking standby power according to the technical idea of the present invention, and FIG. 3 illustrates an operation of the switch for preventing inrush current shock and standby power cutoff shown in FIG. It is a figure for demonstrating. At this time, (a) of Figure 3 is a view for showing the state that the external power is applied to the internal circuit 1 by the operation of the power-on unit 30, Figure 3 (b) is Figure 3 (a) In the state of the delay unit 50 is operated to activate the activation switch 70 is a view showing a state in which the internal circuit (1) is activated (activated).

2 and 3, the switch 10 for preventing the inrush current shock and blocking the standby power according to the present invention is applied to the internal circuit 1 through an external power supply via a power supply (power supply) of an electronic product. After that, the electronic device is turned on by the activating switch 70, and when the internal circuit 1 is turned off, power to the power supply is cut off.

Since the switch 10 according to the present invention provides a contact point switch function to allow external power to be applied to the internal circuit 1 of the electronic product, the contact point at the power supply lead line when the internal circuit 1 is turned off. The switch function allows the standby power to be completely cut off. For example, taking a computer as an example, the conventional technology does not cut off the standby power even when the solid state switch of the main body is turned off to turn off the computer, so the main body may be unplugged or a separate two-pole Although a multi-tap having a contact switch is used, according to the present invention, only the main body switch (the switch 10 of the present invention) installed in the computer main body effectively cuts off standby power. In addition, after the external power is first applied to the internal circuit 1 by the delay unit 50, the internal circuit 1 is operated through the activation switch 70 after a predetermined time. In addition, it can effectively reduce the impact or spark of inrush current generated when turning on the electronics, and can reliably prevent the failure of components caused by the changing voltage. At this time, the duration of the Hot Load Current inrush current is very short and considering the delay time of conversion of the power supply to AC, the contact switch is activated and the activation switch (solid state switch) turns on the control signal (about 1 second). It is good to turn on the electronics by generating a signal, but depending on the system, it may be longer.

Referring back to FIG. 2, the switch 10 for preventing inrush current shock and blocking standby power according to the present invention includes a terminal block 20, a power on unit 30, an activation switch 70, and a delay unit 50. It is provided. In this case, the terminal block 20 has first and second terminals 22 and 24 to which an external power source input for driving an electronic product is connected. The first and second opening and closing terminals are installed to be elastically contactable and open at one side corresponding to the first and second terminals 22 and 24, respectively, and the other side is electrically connected to the internal circuit 1, respectively. External power is drawn into or cut off from the internal circuit (1). In this case, the installation positions of the first and second opening and closing terminals may be integrally formed with the power-on unit 30 or may be installed in the terminal block 20. Therefore, the first and second fixed terminals 22 and 24 and the first and second opening and closing terminals 23 and 25 are different in shape and installation position as necessary, and various shapes applied to general switches can be applied. There will be. The activation switch 70 generates a control signal to operate the internal circuit 1 of the electronic product. In addition, the delay unit 50 is delayed by a predetermined time in a state where power is applied to the internal circuit 1 of the electronic product by the power-on unit 30, and then the activation switch 70 is operated to generate a control signal. To help.

Through such a configuration, the switch 10 for preventing the inrush current shock and the standby power according to the present invention, as shown in FIG. 3, is stable in the inrush current shock prevention and spark by allowing the electronics to be operated through two processes. To prevent it. That is, the switch 10 for preventing the inrush current shock and blocking the standby power according to the present invention, when the user wants to use the electronic product, the power-on unit 30 installed in the electronic product like a conventional switch or button It works. Then, the first and second terminals 22 and 24 and the first and second open / close terminals are in contact with each other so that the internal circuit 1 is electrically connected, so that an external power source is applied to the internal circuit 1. After the power is applied to the internal circuit 1 as described above, the activation switch 70 is activated through the delay unit 50. Then, the activation switch 70 generates a control signal to operate the internal circuit 1 of the electronic product to turn on the electronic product.

On the other hand, in the switch 10 for the inrush current shock protection and standby power cut off according to the present invention, it is preferable to apply a solid state (semiconductor) switch to the switch 70, the power supplied from the outside power supply ( The contact switch may be applied to the internal circuit 1 through the power supply. The switch 10 for preventing the inrush current shock and shutting off the standby power according to the preferred embodiment of the present invention operates the contact switch first when the electronic product is turned on and after a predetermined time elapses, that is, to minimize the influence of the inrush current. After that, a control signal is sent to a central processing unit or a control unit by a solid state switch to turn on the electronic product, thereby eliminating an electric shock. Therefore, since the internal circuit 1 can use the normal current passed through the power supply and the low and equal voltage, the contact control switch is used instead of the contactless (semiconductor) switch to activate the internal control circuit without electric shock. You can also turn on.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, FIGS. 4 to 7, and like reference numerals designate like elements in FIGS. 1 to 7. Meanwhile, in each drawing, a description and a detailed description of the configuration, operations and effects thereof, which can be easily understood from related technologies of the related art, and those related to the various standby power cutoff switches in the related art will be briefly or omitted and related parts of the present invention. It is shown in the center.

FIG. 4 is a block diagram illustrating a switch for preventing inrush current shock and blocking standby power according to a preferred embodiment of the present invention, and FIG. 5 illustrates inrush current shock protection and standby power blocking according to a preferred embodiment of the present invention. Is a schematic perspective view showing the main configuration of the switch.

As shown in FIG. 2, the switch 10 for preventing the inrush current shock and the standby power according to the preferred embodiment of the present invention includes a terminal block 20, a power-on unit 30, An activation switch 70 and a delay unit 50 are provided so that they can be applied to the electronics without changing the power supply mechanism of the existing electronics. It effectively prevents direct damage or malfunction of the parts, and turning off the electronics effectively cuts off unnecessary standby power.

The switch 10 for preventing the inrush current shock and blocking the standby power according to the present embodiment includes the first and second switching terminals 23 and 25, the first and second terminals 22 and 24, and the power-on unit 30. ), The delay unit 50 and the activation switch 70 are installed in a single case 12. That is, by being configured as a unit through a single case 12, it is to be installed directly in an electronic product like a general contactless switch. In particular, the switch 10 according to the present embodiment is formed in the form of a controller {80, in this embodiment in the form of a PCB in order to automatically turn off the contact switch when the internal circuit 1 of the electronic product is off (disabled) } Is installed in the case 12 so that design changes or remanufacturing of existing electronic products are unnecessary. Of course, in the case of applying the switch 10 according to the present invention in the design of the electronic product, in the form as shown in the block diagram shown in Figure 4 the controller 80 in conjunction with the internal circuit (1) of the electronic product to be integrally configured It could be.

4 and 5, in the switch 10 for preventing the inrush current shock and blocking the standby power according to the present embodiment, the terminal block 20 includes a first and second external power inputs for driving electronic products. It has a second terminal 22, 24. The terminal block 20 has an internal circuit (when external power is applied to the internal circuit 1 through the contacts of the first and second open / close terminals 23 and 25 and the first and second terminals 22 and 24). 1) or an electromagnet 48 operated by the controller 80 is installed. At this time, the electromagnet 48 is configured by connecting the solenoid coil terminal around the solenoid coil. Controller {80; In the present embodiment shown in FIGS. 5 and 7, the controller 80 may be installed at a convenient place in the case 12. In the state where the power is applied, the controller 80 is turned off when the internal circuit 1 of the electronic product is turned off. Is controlled to pass a current through the solenoid coil to generate a magnetic field in the electromagnet 48. At this time, the electromagnet has the same polarity as that of the close contact magnet 46, so that the electromagnet 48 and the magnet 46 are pushed out to contact the first and second opening and closing terminals 23 and 25 and the first and second terminals ( 22, 24 will be opened (isolated). The electromagnet 48 then loses its magnetism because there is no power supply. That is, the controller 80 is powered when the external power is applied to the internal circuit 1 by the power on unit 30 and the internal circuit 1 is deactivated or a control signal (off signal) is generated or By sensing the current flowing in the electronics of the magnetic product to make the electromagnet 48 magnetic, thereby generating the magnet 46 and the repulsive force, as the moving block 40 is returned to its original position by the spring 34b, the first and the second The contacts between the opening and closing terminals 23 and 25 and the first and second terminals 22 and 24 are separated to cut off standby power.

The first and second terminals 22 and 24 and the first and second opening and closing terminals 23 and 25 are in contact with each other in the switch 10 for preventing inrush current shock and blocking standby power according to the present embodiment. The on button 30 is elastically supported by the spring 34a in the power-on unit 30 to be applied to the internal circuit 1 so that one side thereof is protruded out of the case 12 and is slidably moved. The on button 32 may be provided. The on button 32 may be applied in various forms that are generally used by the user to press the power of the electronic product on and off under the spirit of the present invention. And it has the movable block 40 which is elastically supported by the spring 34b, and is installed between the terminal block 20 and the on-button 32. As shown in FIG. The moving block 40 is moved in the direction of the terminal block 20 by the on button 32 to contact the first and second terminals 22 and 24 and the first and second opening and closing terminals 23 and 25. At this time, the magnet 46 installed in the moving block 40 is in close contact with the electromagnet 48 and the first and second terminals 22 and 24 and the first and second opening and closing terminals 23 and 25 remain in contact with each other. do. At this time, the electromagnet of course does not form a magnetic field. It is also natural that the magnetic force of the magnet 46 should be greater than the restoring force of the spring 34. To this end, the movable block 40 has protrusions 42 for pushing one side of the first and second opening and closing terminals 23 and 25 on both sides thereof, and a magnet 46 at the center thereof. When the electric current flows through the electromagnet 48 by the control of the internal circuit 1 or the controller 80, a magnetic field is generated, and the electromagnet 48 and the magnet 46 closely contact each other and are pushed out. On the other hand, the mounting position of the magnet 46 and the electromagnet 48, it is also possible to install the magnet 46 on the terminal block 20, the electromagnet 48 in the moving block 40, as opposed to the present embodiment.

On the other hand, in the switch 10 for the inrush current shock protection and standby power cut-off according to the present embodiment, the activation switch 70 applies a contactless switch, generates a control signal to operate the internal circuit 1 of the electronic product Be sure to In addition, the delay unit 50 delays a predetermined time in a state where power is supplied to the internal circuit 1 of the electronic product by the power-on unit 30, and then activates the activation switch 70 to generate a control signal. Be sure to

FIG. 6 is an exploded perspective view for explaining a main configuration of the delay unit in FIG. 5.

Referring to FIG. 6, in the switch 10 for preventing inrush current shock and blocking standby power according to the present embodiment, the delay unit 50 has an on button in order to obtain a stable delay effect and to configure it as simply as possible. It is characterized in that it is operated by the (32) to operate the activation switch 70 with a time difference.

More specifically, in the switch 10 according to the present embodiment, the delay unit 50 includes an actuating protrusion 53 and a swing lever 54 so that the on button 32 moves the moving block 40 to the terminal block. Do not activate the activation switch 70 when pushing to (20). The magnet 46 of the moving block 40 is in close contact with the electromagnet 48 of the terminal block 20 (which does not function as an electromagnet), and the first and second open / close terminals 23 and 25 and the first and second terminals. After the 22 and 24 are contacted to allow an external power source to be applied to the internal circuit 1, the internal circuit is generated by operating the activation switch 70 to generate a control signal when the on button 32 is retracted (home position). The activation of (1) enables the operation of electronic products. To this end, the operation protrusion 53 is slid in accordance with the transfer of the button 32 installed in the on button 32. Then, the swing lever 54 is coupled to the case 12 so as to be rotatable in both directions with respect to the sliding direction of the actuating protrusion 53, and the actuating protrusion when the on button 32 is slid in the opposite direction of the terminal block 20. And rotated by 53 to activate the activation switch 70.

Such a delay unit 50 may be extended through various auxiliary elements or have a specific structure as necessary. In the present embodiment, the actuating protrusion 53 is formed in the holder 52 which is fitted into the on button 32 and the front button in the direction in which the on button 32 is advanced has an inclined surface 53a, so that the on button When the 32 moves forward, the swing lever 54 is rotated to move forward naturally. The swing lever 54 is inserted into the boss 12a formed in the case 12 so as to be horizontally rotatable and rotated by the operation protrusion 53. Then, the input lever 55 is formed so that the input and output levers 55 and 56 are inclined so that the end surface 55a corresponds to the inclined surface 53a of the operation protrusion 53, and the output lever 56 is the input lever 55. On the other side of the) to press the activation switch 70. At this time, as shown in (c) of FIGS. 5 and 7, the output lever 56 is activated when the swing lever 54 is rotated by the actuating projection 53 when the on button 32 moves forward. Supported by the leaf spring (60) installed on the other side of the return to the original position and when the on button 32 is returned to the original position to activate the activation switch 70 at a predetermined time, the time of the intervening spring (S) It can be adjusted by tension.

7 is a view for explaining the operation of the switch for preventing inrush current shock and standby power in accordance with a preferred embodiment of the present invention.

Referring to FIG. 7, (a) of FIG. 7 is a state in which the electronic product is turned off and the external power is cut off. When the user presses the on button 32 in such a state, as shown in FIG. 7B, the on button 32 is advanced and the operation protrusion 53 moves the input lever 55 of the swing lever 54. While pushing, it moves forward with the on button 32. Then, while the swing lever 54 rotates, the output lever 56 pushes the leaf spring 60, and when the on button 32 continues to move forward as shown in FIG. 7C, the operating protrusion 53 swings. Since the lever spring deviates, the leaf spring 60 exerts an elastic force on the output lever 56 so that the swing lever 54 is returned to its original position. Then, the on button 32 pushes the moving block 40 in the direction of the electromagnet 48. The magnet 46 in the center of the moving block 40 is brought into close contact with the electromagnet 48 and the projection presses one side of the first and second opening and closing terminals 23 and 25 so that the first and second opening and closing terminals ( 23, 25) to be in contact with the state. At this time, due to the magnet 46 in the moving block 40, as shown in (d) of FIG. 7, even if the on button 32 is reversed, the moving block 40 is in close contact with the electromagnet 48 and fixed. Thus, the first and second opening and closing terminals 23 and 25 and the first and second terminals 22 and 24 are in contact with each other.

In this way, in the process of retracting the on button 32 while the power supply is applied to the internal circuit 1, the operation protrusion 53 moves the input lever 55 of the swing lever 54 to the reverse of the on button 32. Direction, the swing lever 54 rotates while the output lever 56 presses the activation switch 70. Accordingly, the activation switch 70 generates a control signal to operate the internal circuit 1. And, as shown in Fig. 7E, when the on button 32 is homed, the swing lever 54 is also homed by the elastic force of the activation switch 70 or by the sppping S, but the moving block 40 remains attached to the terminal block 20.

When the button 32 in the state (e) of FIG. 7 is operated again, the first and second opening and closing terminals 23 and 25 and the first and second terminals 22 and 24 are in contact with each other. According to the backward movement of 32, the activation switching 70 generates a control signal (off signal), the internal circuit 1 turns off the electronics, and the controller 80 causes a current to flow through the electromagnet so as to contact the first. And the second opening / closing terminals 23 and 25 and the first and second terminals 22 and 24 to be opened so as to be in the state of FIG.

Meanwhile, in the same state, the switch 10 for the inrush current shock prevention and the standby power cut-off according to the present invention is turned off by the software of the internal circuit 1 or by the activation of the on button 32 to the activation switch 70. When a control signal (off signal) is generated, the controller 80 causes a current to flow in the solenoid coil so that a magnetic field is generated in the electromagnet 48. The pushing force is generated by having the same polarity as the magnet 46 in close contact. And by the spring 34b the moving block 40 is in the original position so that the contact point switch is opened, the external power is automatically cut off to conveniently and effectively cut off the standby power. On the other hand, the first and second terminals 22 and 24 and the first and second open and close terminals are changed in such a manner as to change the direction of the magnetic field polarity by flowing a current through the electromagnet 48 by the controller 80 or the internal circuit 1. It can also be made as a latching relay that allows (23, 25) to be contacted or opened. At this time, of course, the constant power is supplied to the internal circuit 1 (eg, a battery), and the operation protrusion 53 is provided on one side of the moving block 40 of the on unit 30, and a method of mounting the mainspring on the swing lever 54. The delay unit 50 is configured so that the control signal (on) is activated by the activation switch 70 at a predetermined time after the first and second opening and closing terminals 23 and 25 and the first and second terminals 22 and 24 are contacted. Signal) can be generated.

As described above, the switch for the inrush current shock protection and standby power cut-off according to a preferred embodiment of the present invention is shown in accordance with the above description and drawings, but this is only described for example and do not depart from the spirit of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the scope of the present invention.

1: internal circuit
10: Switch (for inrush current shock protection and standby power off)
12 case 20 terminal block
22: first terminal 24: second terminal
23: first opening and closing terminal 25: second opening and closing terminal
30: power on unit 32: on button
34a, 34b, S: spring 40: moving block
46: magnet
48: electromagnet 50: delay unit
53: working projection 54: swing lever
70: enable switch 80: controller

Claims (4)

A switch for turning on the power input from the outside to the internal circuit 1 of the electronic product and turning off the power supplied to the internal circuit 1 from the outside when the internal circuit 1 is turned off so that standby power is cut off. To
First and second terminals 22 and 24 to which an external power input for driving an electronic product is connected;
First and second opening and closing terminals 23 and 25 electrically connected to the internal circuit 1 of the electronic product;
A power-on unit (30) for contacting the first and second open / close terminals (23, 25) and the first and second terminals (22, 24);
An activation switch 70 for generating a control signal (on, off signal) according to the operation of the power on unit 30 to operate the internal circuit 1 of the electronic product;
When the electronic product is turned on, the first and second terminals 22 and 24 and the first and second opening and closing terminals 23 and 25 are contacted by the power on unit 30 so that the internal circuit 1 of the electronic product is turned on. And a delay unit (50) for causing the activation switch (70) to generate a control signal (on signal) after power is first applied and a predetermined time is delayed.
The method of claim 1,
The internal circuit 1 is a controller for controlling the first and second switching terminals 23 and 25 and the first and second terminals 22 and 24 to be automatically opened (disconnected) to cut off standby power. Switch for inrush current shock protection and standby power cutoff, characterized in that it further comprises (80).
The method according to claim 1 or 2,
The delay unit 50 has an operation protrusion 53 for operating the activation switch 70 and the power on unit 30 generates a control signal (on, off signal) to the activation switch 70. The on button (32) to be made, the switch for the inrush current shock protection and standby power cutoff, characterized in that the operation projection (53) and the on button (32) are integrally formed.
The method of claim 3, wherein
The first and second terminals 22 and 24, the first and second opening and closing terminals 23 and 25, the power on unit 30, the delay unit 50, and the activation switch 70 may be a single case 12. A switch for preventing the inrush current shock and standby power, characterized in that installed in).

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