KR20120059071A - A Automatic Electromagnetic Wave Extinction Unit of a Boiler of Warm Water Mat - Google Patents

Abstract

PURPOSE: A vanishing device for electromagnetic waves of a boiler for a hot water mat is provided to depolarize electromagnetic waves shielded by a ground metal material through a power line, which is contacted with a ground terminal. CONSTITUTION: A vanishing device for electromagnetic waves of a boiler for a hot water mat comprises a heating member(100), metals for an earth(200), a microcomputer(300), a switching circuit unit(400). The heating member is inputted with AC(Alternating Current) power through an outdoor power line. The heating element is heated using electric energy. The metals for an earth shield the electromagnetic waves generated from the heating member. The microcomputer is inputted with an electromagnetic wave length generated from the metals for an earth. The microcomputer outputs control signals for an earth if the electromagnetic wave length is detected. The switching circuit unit comprises two C-shaped contact relay switch units. The C-shaped contact relay switch units are connected to first and second AC input connection units. The first and second AC input connection units are selectively switched in a ground line according to the control signals from the microcomputer.

Description

A Automatic Electromagnetic Wave Extinction Unit of a Boiler of Warm Water Mat}

The present invention relates to a device for automatically extinguishing electromagnetic waves of a hot water mat boiler, and more particularly, to an apparatus for automatically extinguishing electromagnetic waves of a hot water mat boiler, characterized in that it automatically selects and extinguishes harmful electromagnetic waves by an input power source.

Direct type hot water heater is an electric heat source to generate hot water by instantaneous heat supply to the water passing through the inside of the pipe, it is mainly applied to the hot water heater, boiler, hot water circulation system for hot water mat.

Direct type hot water heater generally includes a hollow metal tube having a water channel therein and a heating member disposed on the outer surface of the metal tube, for example, a ceramic heater and a PTC heater capable of short-term high temperature heating, and generating heat through an electrically connected external controller. The temperature is controlled. At this time, the outer hose or the pipe is connected to the inlet and the outlet of the metal pipe. Accordingly, the water supplied through the hose or the pipe is converted into hot water by the instantaneous heat provided from the heater in the process of passing through the metal pipe, and exits to the outside of the pipe through the outlet.

The direct type hot water heater as above uses AC power just like electric appliances. In the case of AC power, since the polarity is changed periodically, more harmful electromagnetic waves are generated than in DC power. As such, unless the electromagnetic wave generated in the heater heating process through the AC power source is not blocked in advance, the generated electromagnetic wave is included in the water supply via the hose or the tube, and thus spreads more widely, which has a harmful effect on the human body.

However, in the case of the conventional general direct type heater, there is a problem in that it is necessary to take the risk of being exposed to electromagnetic waves at all times because there is no separate blocking function for blocking electromagnetic waves.

In order to solve this problem, Patent No. 10-0871896 proposes a direct type hot water heater having an electromagnetic wave extinction function. The ground wire is detected by detecting a ground terminal side of the external power line between an external power line and a ground wire. A switching circuit for switching to the ground terminal power line is presented.

That is, when a current flows, the switching circuit 42 provided in the controller 40 detects the ground end side power line L1 connected to the ground end 62 of the outlet 60 among the external power lines L, and The ground end side power line L1 detected accordingly is switched with the ground line 35. Therefore, when the plug 50 is plugged into the outlet 60, the ground wire 35 is always electrically connected to the ground terminal 62 of the outlet 60, and accordingly, electromagnetic waves generated from the heat transfer plate 32. The two strands of the external power line (L) through the ground end side power line (L1), the plug 50 and the outlet terminal 60 of the ground terminal 62 is discharged to the outside as described above.

On the other hand, the switching circuit is a dial system, a three-stage switch system, a microcomputer and a relay system are widely known as shown in Figs.

The dial method and the three-stage switch method in which the user manually determines the connection to the ground line, and the semi-automatic method using a relay allows the ground line to be switched by the microcomputer.

In particular, as shown in FIG. 4, the microcomputer and the relay system have a resistor installed at the ground line and the AC input connection 1, and the ground line and the AC input connection 2, which is used as 220V by boosting the 110V voltage. To form a virtual ground in the type of electricity that is being done.

However, since the resistance value of the resistance element is about 100K-200K, even if M ohm is used, minute currents at both ends flow to the ground line.

That is, since a minute current flows through the resistance elements R1 and R2 to the ground line, perfect current blocking and electromagnetic wave disappearance are not possible in the hot water regulator through which water passes.

In addition, it was difficult to dissipate the electromagnetic waves clearly and accurately in areas where the grounding division of the A / C cord was not clear.

The present invention is to solve the above problems, and to form an insulating plate on the outside of the heating member, to install a circuit line to check the electromagnetic wave on the insulating plate, the microcomputer to determine the presence of electromagnetic waves through the circuit line And a switching circuit unit for switching the AC input line and the ground line in accordance with the signal output of the microcomputer to automatically select the ground line so as to automatically dissipate the electromagnetic waves.

In addition, the switching circuit unit is provided with a C-type relay switching means, one side line is connected to the electromagnetic ground line, and the other two lines to automatically switch the first AC input connection and the second AC input connection with the ground line. There is a purpose.

As a means for achieving the above object,

The present invention includes a heating member that receives AC power through an external power line and is heated using electrical energy; A grounding metal material disposed on the outside of the heating member and made of a metal material to shield electromagnetic waves generated from the heating member; A microcomputer that connects a wavelength monitoring line through the grounding metal to receive electromagnetic waves generated through the grounding metal, and outputs a control signal for grounding when the wavelength is detected from the grounding metal; It is electrically connected to the micom, but provided with two C-type contact type relay switch unit, the C-type contact type relay is connected to the first AC input connection and the second AC input connection, respectively, the first AC according to the control signal of the microcomputer And a switching circuit unit for selectively switching the input connection unit and the second AC input connection unit to the ground line.

The switching circuit unit may further include: a first microcomputer signal output terminal electrically connected to the microcomputer and receiving an output signal from the microcomputer; A first switching transistor connected to the first microcomputer signal output terminal to switch a signal output from the microcomputer; A first relay connected to the first switching transistor and magnetized according to a switching signal to function as an electromagnet; A first relay switch unit disposed above the first relay at a predetermined distance, and configured to selectively make a contact according to the operation of the first relay; A first contact part installed on an upper part of the first relay switch part to make a contact in a normal state in which the first relay is not operated; A second contact portion provided below the first relay switch portion to make a contact when the first relay is operated; A first relay switch installed at one end of the first relay switch unit and selectively switching a first contact unit and a second contact unit; A second microcomputer signal output terminal electrically connected to the microcomputer to receive an output signal from the microcomputer; A second switching transistor connected to the second microcomputer signal output terminal to switch a signal output from the microcomputer; A second relay connected to the second switching transistor and magnetized according to a switching signal to function as an electromagnet; A second relay switch unit disposed above the second relay at a predetermined distance, and configured to selectively make a contact according to the operation of the second relay; A third contact part installed on an upper part of the second relay switch part to make a contact in a normal state in which the second relay is not operated; A fourth contact part installed below the second relay switch part to make a contact when the second relay is operated; A second relay switch installed at one end of the second relay switch part and selectively switching a third contact part and a fourth contact part; A first AC input line extending to one side of the plug and connected to the first contact portion of the first relay switch unit and receiving electricity through an outlet and a plug, or connected to a ground line of the outlet to ground the electricity; A first branch line branched in parallel to the first AC input line and connected to a fourth contact portion of the second relay switch unit through a resistor; A second AC input line extending to the other side of the plug and connected to the third contact portion of the second relay switch and receiving electricity through an outlet and a plug, or connected to a ground line of the outlet to ground the electricity; A second branch line branched in parallel to the second AC input line and connected to a second contact portion of the first relay switch unit through a resistor; One side is connected to the grounding metal material and the ground line for grounding the AC electromagnetic wave through the grounding metal material; A first ground line connection unit connected to the first relay switch to connect the first AC input line to the ground line according to the operation of the first relay to ground the first AC input line; And a second ground line connection part connected to the second relay switch to connect the second AC input line to the ground line according to the operation of the second relay so that the second AC input line is grounded.

As described above, the present invention includes an insulating plate formed on an outer side of the heating member, a circuit line for checking electromagnetic waves on the insulating plate, and a microcomputer for determining the presence or absence of electromagnetic waves through the circuit line. According to the signal output is provided with a switching unit for switching the AC input line and the ground line has the effect of extinguishing electromagnetic waves by automatically selecting the ground line.

In addition, the switching circuit unit is provided with a C-type relay switching means, one side line is connected to the electromagnetic ground line, and the remaining two lines to automatically switch the first AC input connection and the second AC input connection to the ground line automatically There is.

1 is a block diagram of a conventional heating member electromagnetic wave shielding device.
Figure 2 is a first embodiment of a conventional switching circuit portion configuration.
3 is a view of a second embodiment of a conventional switching circuit unit.
Figure 4 is a third embodiment of the conventional switching circuit section configuration.
5 is an overall block diagram of the present invention.
6 is a configuration diagram of a switching circuit unit of the present invention.

Hereinafter, with reference to the accompanying drawings and description will be described in detail the operating principle of the preferred embodiment of the present invention. However, the drawings and the following description shown below are for the preferred method among various methods for effectively explaining the features of the present invention, the present invention is not limited only to the drawings and description below.

In addition, in the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom. Therefore, the definition should be based on the contents throughout the present title.

In addition, preferred embodiments of the present invention to be carried out below are already provided in each system functional configuration to efficiently describe the technical components constituting the present invention, or system functions commonly provided in the technical field to which the present invention belongs. The configuration will be omitted, and described mainly on the functional configuration to be additionally provided for the present invention.

If those skilled in the art to which the present invention pertains, it will be able to easily understand the function of the components already used in the prior art among the omitted functional configuration not shown below, and also the configuration omitted as described above The relationship between the elements and the components added for the present invention will also be clearly understood.

In addition, the following examples will be used to appropriately modify the terms so that those skilled in the art to clearly understand the technical features of the present invention to effectively understand, but the present invention It is by no means limited.

As a result, the technical spirit of the present invention is determined by the claims, and the following embodiments are one means for efficiently explaining the technical spirit of the present invention to those skilled in the art to which the present invention pertains. It's just

5 is an overall block diagram of the present invention.

6 is a configuration diagram of a switching circuit unit of the present invention;

The component of the present invention includes a heating member 100, a grounding metal material 200, a microcomputer 300, and the switching circuit unit 400.

The heating member 100 is electrically connected through an external power line to generate heat. The heating member is PTC (Positive Temperature Coefficient) made of barium titanate-based ceramic material which has a characteristic of rapid temperature rise compared to the heating member of a general metal material and realizes low power consumption since no current flows at a constant temperature. It is preferable to apply, and the insulating film inserted into the heating member is excellent in insulation and excellent in heat resistance, so that the dimensions and shape deformation at high temperatures should be small, and at the same time, the flexibility should be excellent, as well as chemical resistance and moisture resistance. It should be excellent, but it is better to use polyamide or PET film suitable for these conditions.

The grounding metal material 200 is installed outside the heating member, and is installed for the purpose of shielding electromagnetic waves generated from the heating member. The grounding metal material is electrically connected to the ground end side power line among the two external power lines L for supplying power to the heating member through the grounding wire. Therefore, the electromagnetic wave shielded by the grounding metal material is connected to the grounding wire. The flow is induced to the ground end side power line through.

The microcomputer 300 receives the electromagnetic wave wavelength generated through the grounding metal material by connecting the wavelength monitoring line through the grounding metal material, and outputs a control signal for grounding when the wavelength is detected from the grounding metal material.

The switching circuit unit 400 is provided with a c-type relay switching means, one line is connected to the electromagnetic ground line, the other two lines are connected to the AC input connection 1 and AC input connection 2, the c-type relay switching means 2 AC input connection 1 and AC input connection 2 are selectively switched with the ground line.

Hereinafter, the switching circuit unit will be described in more detail.

The switching circuit unit 400 of the present invention includes a first microcomputer signal output terminal 401, a first switching transistor 402, a first relay 403, a first relay switch unit 404, and a first contact unit. 404a, the second contact portion 404b, the first relay switch 404c, the second micom signal output terminal 411, the second switching transistor 412, the second relay 413, The second relay switch unit 414, the third contact unit 414a, the fourth contact unit 414b, the second relay switch 414c, the first AC input line 421, and the first branch; Line 422, second AC input line 431, second branch line 432, ground line 441, first ground line connection portion 442, second ground line connection portion 443 Is made of.

The first microcomputer signal output terminal 401 is electrically connected to the microcomputer 300 to receive an output signal from the microcomputer 300.

The first switching transistor 402 is connected to the first microcomputer signal output terminal 401 to switch a signal output from the microcomputer 300.

The first relay 403 is connected to the first switching transistor 402 and magnetized according to a switching signal to function as an electromagnet.

The first relay switch unit 404 is installed on the upper part spaced apart from the first relay 403 by a predetermined distance so that the contact is selectively made according to the operation of the first relay 403.

The first contact portion 404a is installed on the upper portion of the first relay switch 404 so that the contact is made in a normal state in which the first relay 403 is not operated.

The second contact portion 404b is installed under the first relay switch portion 404 so that the contact is made when the first relay 403 operates.

The first relay switch 404c is installed at one end of the first relay switch 404 and selectively switches the first contact portion 404a and the second contact portion 404b.

The second microcomputer signal output terminal 411 is electrically connected to the microcomputer 300 to receive an output signal from the microcomputer 300.

The second switching transistor 412 is connected to the second microcomputer signal output terminal 411 to switch the signal output from the microcomputer 300.

The second relay 413 is connected to the second switching transistor 412 and magnetized according to the switching signal to function as an electromagnet.

The second relay switch unit 414 is installed above the second relay 413 by a predetermined distance, and the contact is made selectively according to the operation of the second relay 413.

The third contact portion 414a is installed on the upper portion of the second relay switch portion 414 so that the contact is made in a normal state in which the second relay is not operated.

The fourth contact portion 414b is installed under the second relay switch portion 414 so that the contact is made when the second relay is operated.

The second relay switch 414c is installed at one end of the second relay switch 414 and selectively switches the third contact portion 414a and the fourth contact portion 414b.

The first AC input line 421 is extended to one side of the plug 450 to be connected to the first contact portion 404a of the first relay switch 404 and through the outlet 460 and the plug 450. Electricity is supplied or connected to the ground line of the outlet 460 to ground the electricity.

The first branch line 422 is branched in parallel to the first AC input line 421 and connected to the fourth contact portion 414b of the second relay switch 414 through a resistor.

The second AC input line 431 is extended to the other side of the plug 450 and connected to the third contact portion 414a of the second relay switch 414 and through the outlet 460 and the plug 450. Electricity is supplied or connected to the ground line of the outlet 460 to ground the electricity.

The second branch line 432 is branched in parallel to the second AC input line 431 and connected to the second contact portion 404b of the first relay switch portion 404 through a resistor.

One side of the ground line 441 is connected to a grounding metal material to ground an AC electromagnetic wave through the grounding metal material 200.

The first ground line connection unit 442 is connected to the first relay switch 404c to connect the first AC input line 421 to the ground line 441 according to the operation of the first relay 403 to connect the first AC. The input line 421 is grounded.

The second ground line connection part 443 is connected to the second relay switch 414c to connect the second AC input line 431 to the ground line 441 according to the operation of the second relay 413 to connect the second AC. The input line 431 is grounded.

Looking at the overall operation of the present invention as follows.

When the plug 450 is connected to the outlet 460, the heating member is heated while electricity is supplied through the power line. At this time, the water passing through the heating member 100 is converted into hot water by receiving heat, and electromagnetic waves are shielded by the rapid accelerator 200 for grounding.

The shielded electromagnetic wave is emitted and extinguished through the power line in contact with the ground terminal of the outlet 460 in the power line through the grounding accelerator 200 and the ground line 441.

At this time, the microcomputer 300 determines whether the electromagnetic wave is generated from the grounding metal 200 and when the electromagnetic wave is detected, operates the switching circuit 400 to selectively select the ground line 441 and the first and second AC input lines 421 and 431. By connecting to the ground line 441 is to be connected to the ground terminal of the outlet 460.

Hereinafter, the operation of the switching circuit 400 will be described in more detail.

In the switching circuit unit 400 of the present invention, when the relays 403 and 413 are not operated in the normal state and the voltage is increased to 110V in this state, the first AC input line 421 and the second AC input line 431 are used. ) Is connected to the ground line 441 through a resistor, respectively, so that one side of the two lines is connected to the ground line 441 while the resistors R1 and R2 are connected to form a ground.

That is, when the power inputted through the first AC input line 421 is grounded, the second resistor R2, the fourth contact 414b, the second relay switch 414c, and the second ground line connection part 443 and Through the ground line 441, the ground terminal and the ground of the outlet 460 are made. When the power inputted through the second AC input line 431 is grounded, the first resistor R1, the second contact 404b, the first relay switch 404c, the first ground line connection part 442, and the ground A ground is made to the outlet via line 441.

Meanwhile, referring to a case in which 220 V power is used alone, when the power line is grounded through the first AC input line 421, when the switching signal is output through the microcomputer 300, the first switching transistor 402 switches. While operating the first relay 403. When the first relay 403 is operated, the first relay switch 404c descends and contacts the first contact 404a to switch. Then, the power line connected through the first AC input line 421 is grounded through the first contact point 404a, the first relay switch 404c, the first ground line connection part 442, and the ground line 441.

In addition, when the power supply line is grounded through the second AC input line 431, when the switching signal is output through the microcomputer 300, the second switching transistor 412 is switched to operate the second relay 413. When the second relay 413 is operated, the second relay switch 414c descends to make contact with the third contact 414a. Then, the power line connected through the second AC input terminal is grounded through the third contact point 414a, the second relay switch 414c, the second ground line connection part 443, and the ground line 441.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention.

That is, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention but to describe the scope of the technical spirit of the present invention by these embodiments.

Therefore, the protection scope of the present invention should be interpreted by the claims below, and all technical ideas within the equivalent scope will be construed as being included in the scope of the present invention.

100: heating member
200: grounding metal
300: micom
400: switching circuit
401: first microcomputer signal output terminal
402: first switching transistor
403: first relay
404: first relay switch unit
404a: first contact portion
404b: second contact portion
404c: first relay switch
411: second microcomputer signal output terminal
412: second switching transistor
413: second relay
414: second relay switch unit
414a: third contact portion
414b: fourth contact portion
414c: second relay switch
421: first AC input line
422: first branch line
431: second AC input line
432: second branch line
441: ground line
442: first ground line connection
443: second ground line connection

Claims (2)

A heating member 100 that receives AC power through an external power line and is heated using electrical energy;
A grounding metal material 200 disposed outside the heating member and made of a metal material to shield electromagnetic waves generated from the heating member;
A microcomputer 300 for connecting the wavelength monitoring line through the grounding metal to receive the electromagnetic wave generated through the grounding metal, and outputting a control signal for grounding when the wavelength is detected from the grounding metal;
It is electrically connected to the micom, but provided with two C-type contact type relay switch unit, the C-type contact type relay is connected to the first AC input connection and the second AC input connection, respectively, the first AC according to the control signal of the microcomputer Automatic switching device for electromagnetic waves of the boiler for hot water mat comprising a switching circuit 400 for selectively switching the input connection and the second AC input connection to the ground line. The method of claim 1,
The switching circuit unit 400,
A first microcomputer signal output terminal 401 electrically connected to the microcomputer to receive an output signal from the microcomputer;
A first switching transistor 402 connected to the first microcomputer signal output terminal and switching a signal output from the microcomputer;
A first relay 403 connected to the first switching transistor and magnetized according to a switching signal to function as an electromagnet;
A first relay switch unit (404) spaced apart from the first relay by a predetermined distance and installed at an upper portion thereof to selectively make a contact according to the operation of the first relay;
A first contact portion 404a installed on an upper portion of the first relay switch to allow a contact to be made in a normal state in which the first relay is not operated;
A second contact portion 404b installed below the first relay switch to allow a contact to be made when the first relay is operated;
A first relay switch 404c installed at one end of the first relay switch part and selectively switching a first contact part and a second contact part;
A second microcomputer signal output terminal 411 electrically connected to the microcomputer to receive an output signal from the microcomputer;
A second switching transistor 412 connected to the second microcomputer signal output terminal and switching a signal output from the microcomputer;
A second relay 413 connected to the second switching transistor and magnetized according to a switching signal to function as an electromagnet;
A second relay switch unit 414 which is installed at an upper portion of the second relay at a predetermined distance and selectively contacts according to the operation of the second relay;
A third contact portion 414a installed on an upper portion of the second relay switch to allow a contact to be made in a normal state in which the second relay is not operated;
A fourth contact part 414b installed below the second relay switch part to make a contact when the second relay is operated;
A second relay switch 414c installed at one end of the second relay switch part and selectively switching a third contact part and a fourth contact part;
A first AC input line 421 extended to one side of the plug and connected to the first contact portion of the first relay switch unit and receiving electricity through an outlet and a plug, or connected to a ground line of the outlet to ground the electricity;
A first branch line 422 branched in parallel to the first AC input line and connected to a fourth contact portion of the second relay switch unit through a resistor;
A second AC input line 431 extending to the other side of the plug and connected to the third contact portion of the second relay switch and receiving electricity through an outlet and a plug, or connected to a ground line of the outlet to ground the electricity;
A second branch line 432 branched in parallel to the second AC input line and connected to a second contact portion of the first relay switch unit through a resistor;
A ground line 441 connected to a ground metal material to ground AC electromagnetic waves through the ground metal material;
A first ground line connection part 442 connected to the first relay switch to connect the first AC input line to the ground line according to the operation of the first relay to ground the first AC input line;
And a second ground line connection portion 443 connected to the second relay switch to connect the second AC input line to the ground line according to the operation of the second relay so that the second AC input line is grounded. Automatic extinguisher of electromagnetic wave of boiler for hot water mat.

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