CN201766808U - Electromagnetic wave eliminating device - Google Patents
Electromagnetic wave eliminating device Download PDFInfo
- Publication number
- CN201766808U CN201766808U CN2010201368272U CN201020136827U CN201766808U CN 201766808 U CN201766808 U CN 201766808U CN 2010201368272 U CN2010201368272 U CN 2010201368272U CN 201020136827 U CN201020136827 U CN 201020136827U CN 201766808 U CN201766808 U CN 201766808U
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- electromagnetic wave
- unit
- relay
- ground connection
- eliminator
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Abstract
The utility model relates to an electromagnetic wave eliminating device as one procedure for eliminating electromagnetic wave. When an electromagnetic wave eliminating unit connected with a grounding end of a power supply can absorb electromagnetic wave and lead the electromagnetic wave to flow to the grounding end, an electromagnetic wave generating unit is driven by controlling connection of the electromagnetic wave eliminating unit. When the electromagnetic wave eliminating unit is connected with a non-grounding end of the power supply, a lighting unit for lighting up an indicating lamp is connected in series with the electromagnetic wave eliminating unit, an optical sensor is used for detecting when the indicating lamp is lit up, and electrical connection of the electromagnetic wave eliminating unit is automatically switched according to detection signals, so that the electromagnetic wave eliminating unit supplies power to the electromagnetic wave generating unit after being grounded.
Description
Technical field
The utility model relates to electromagnetic wave eliminator, specifically, relate to electromagnetic wave eliminator, can detect electromagnetic wave and eliminate whether ground connection of unit, and during the electromagnetic electromagnetic wave eliminator ground connection that only when being used to eliminate by the electromagnetic wave generation unit, produces, drive the electromagnetic wave generation unit in operation.
In more detail, the utility model relates to electromagnetic wave eliminator, only eliminate the unit when electromagnetic wave and is connected with the earth terminal of power supply when can absorb electromagnetic wave and making electromagnetic wave flow to earth terminal, the connection of control electromagnetic wave elimination unit is with driving electromagnetic wave generation unit; When electromagnetic wave elimination unit is connected with the non-earth terminal of power supply, the lighting unit of lighting indicator light is eliminated units in series with electromagnetic wave to be connected, and when indicator light is lighted by light sensors, and eliminate the electrical connection of unit according to the consequential signal automatic switchover electromagnetic wave that detects, after making electromagnetic wave eliminate unit ground connection, power to the electromagnetic wave generation unit.
Background technology
As shown in Figure 3, the electromagnetic device of the elimination of prior art comprises: power subsystem 10, be provided with plug 11,12, and plug 11,12 is connected with splicing ear AC1, the AC2 of supply socket during power supply, a ground connection among splicing ear AC1, the AC2; Relay unit 20 comprises two contact 22,23 and the relays that are connected with the plug 11,12 of power subsystem 10, and the contact 21 of relay alternately is connected with two contacts 22,23; Central processor CPU 30, at the splicing ear AC1 of plug 11,12 and socket, drive described relay unit when AC2 is connected, one in the contact 21 that makes relay and two contacts 22,23 is connected, and the magnitude of voltage of detected two contacts 22,23 from the contact relatively; Ground connection detecting unit 50 is connected between relay unit 20 and the central processing unit 30, carries out step-down and dividing potential drop and voltage is input to central processing unit, so that the voltage that detects from the contact 21 of relay can obtain handling central processing unit; Eliminate unit 40, absorb electromagnetic wave, make the influence of the inner electromagnetic field that produces of warmer be unlikely to arrive outside; Eliminate ground unit 41, be electrically connected the contact 21 of eliminating unit and relay; And first capacitor 42 and second capacitor 43, at the first node N1 that is connected with the contact 21 of relay with eliminate between the ground unit 41 in parallel.Central processing unit 30 makes plug 11,12 with the splicing ear AC1 of household socket, when AC2 is connected, from ground connection detecting unit 50 input voltages, and store with two contacts 22,23 in the first corresponding magnitude of voltage of a contact; Then, drive described relay unit 20, make the contact 21 of relay connect another contact in two contacts 22,23, from ground connection detecting unit 50 input voltages, read with two contacts 22,23 in the second corresponding magnitude of voltage of another contact, two magnitudes of voltage relatively, and drive relay unit 20, make the contact of relay be connected to the lower contact of magnitude of voltage, the terminal of ground connection among splicing ear AC1, the AC2 that eliminates ground unit 41 and socket is connected.Eliminate unit 40 and comprise metallic plate or conductive spinning product.Can comprise to the ground connection detecting unit 50 of the clamp circuit of central processing unit 30 input periodic waves: first impedance 51 that between the first node N1 and the second node N2, is connected; Second impedance 53, the 3rd capacitor 52 and first diode 54 that between the second node N2 and ground connection, are connected in parallel; And second diode 55 that between the second node N2 and power source voltage Vcc, is connected.
Yet, because like this ground connection detecting unit of the electromagnetic wave eliminator of the prior art that constitutes detects and eliminates whether ground connection of unit with eliminating value between the unit according to earth terminal, so existence is because of elimination unit and different problems that whether can detect of distance between the ground.
Like this, use the electromagnetic wave generation unit under the earth-free state in unit eliminating, under the situation of particularly electric warmer or warm waistband etc., just have the problem that causes by electromagnetic wave user's serious impact.
The utility model content
The utility model is intended to solve aforesaid prior art problems, the purpose of this utility model provides a kind of electromagnetic wave eliminator, by connecting on the connection line of eliminating unit and power supply at electromagnetic wave the ground connection detecting unit is set, the connection that can make electromagnetic wave eliminate the unit is automaticallyed switch, and is connected with earth terminal so that electromagnetic wave is eliminated the unit.
In detail, the purpose of this utility model provides a kind of electromagnetic wave eliminator, by eliminating be connected in series on the circuit that is connected between the unit transfer relay and ground connection detecting unit at power circuit and electromagnetic wave, only when detecting electromagnetic wave and eliminate the unit and be connected with earth terminal, the ground connection detecting unit powers to the electromagnetic wave generation unit, and when electromagnetic wave elimination unit is not connected with earth terminal, make the transfer relay operation, make electromagnetic wave eliminate the unit and be connected to earth terminal automatically.
In addition, another purpose of the present utility model provides a kind of electromagnetic wave eliminator, wherein, the ground connection detecting unit is made of the optical sensor of eliminating the indicator light lighting unit that units in series is connected with electromagnetic wave and being used to detect light, can detect whether ground connection of electromagnetic wave elimination unit more accurately.
In order to reach the purpose of this utility model, electromagnetic wave eliminator comprises: the power subsystem of supply electricity commonly used; Receive the go forward side by side electromagnetic wave generation unit of line operate of electricity according to the operation of heater relay from power subsystem; Elimination is eliminated the unit by the electromagnetic electromagnetic wave that the electromagnetic wave generation unit produces; Eliminate units in series with electromagnetic wave and be connected, detect the ground connection detecting unit whether electromagnetic wave elimination unit is connected with the earth terminal of power supply commonly used; Be connected to the transfer relay that earth terminal is controlled the connection of electromagnetic wave elimination unit for making electromagnetic wave eliminate the unit; And the control unit of controlling described each element.
The effect that the utlity model has is, by eliminating be connected in series on the circuit that is connected between the unit transfer relay and ground connection detecting unit at power circuit and electromagnetic wave, only when detecting electromagnetic wave and eliminate the unit and be connected with earth terminal, the ground connection detecting unit powers to the electromagnetic wave generation unit, and when electromagnetic wave elimination unit is not connected with earth terminal, transfer relay is operated, make electromagnetic wave eliminate the unit and be connected to earth terminal automatically, thereby can use the electric and electronic device relievedly.
Especially, the effect that the utlity model has is: the ground connection detecting unit is by eliminating the indicator light lighting unit that units in series is connected with electromagnetic wave and the optical sensor that detects light constitutes, and can detect whether ground connection of electromagnetic wave elimination unit more accurately.
Description of drawings
Fig. 1 is the pie graph of expression according to electromagnetic wave eliminator of the present utility model,
Fig. 2 is an example according to electromagnetic wave eliminator circuit of the present utility model,
Fig. 3 is the circuit diagram that the electromagnetic wave of expression prior art is eliminated an example of circuit.
Description of reference numerals
100: power subsystem
200: control unit
300: heater relay
400: ground connection detecting unit 410: indicator light lighting unit 420: optical sensor
500: transfer relay
600: electromagnetic wave is eliminated the unit
700: the electromagnetic wave generation unit.
Embodiment
Describe in detail with reference to the accompanying drawings according to electromagnetic wave eliminator of the present utility model.
Fig. 1 is the pie graph of expression according to electromagnetic wave eliminator of the present utility model, and Fig. 2 is an example according to electromagnetic wave eliminator circuit of the present utility model.
As shown in the figure, has the ground connection detecting unit 400 that is connected in series with electromagnetic wave elimination unit 600 according to electromagnetic wave eliminator of the present utility model.
That is, comprise: the power subsystem 100 of supply electricity commonly used according to electromagnetic wave eliminator of the present utility model; According to the operation of heater relay 300, from the electromagnetic wave generation unit 700 of described power subsystem reception power supply to operate; Elimination is eliminated unit 600 by the electromagnetic electromagnetic wave that electromagnetic wave generation unit 700 produces; Eliminate unit 600 with electromagnetic wave and be connected in series, detect the ground connection detecting unit 400 whether electromagnetic wave elimination unit 600 is connected the earth terminal of power supply commonly used; The control electromagnetic wave eliminates the connection of unit 600 so that electromagnetic wave is eliminated the transfer relay 500 that unit 600 is connected with earth terminal; And the control unit 200 of controlling described each element.
Electromagnetic wave generation unit 700 generally includes heater (heater wire) of generate electromagnetic waves electric, electronic product or device or aforesaid electric warmer etc.
Control driving time, drive cycle of this electromagnetic wave generation unit 700 etc. according to the control of control unit 200.This control method is known, because of the utility model be with this electromagnetic wave generation unit in the relevant technology of electromagnetic elimination that produces, the Therefore, omited is to the detailed description of known method.
Described electromagnetic wave eliminate unit 600 be absorb electromagnetic wave and with electromagnetic wave to the unit that earth terminal transmits, eliminate unit class seemingly with the electromagnetic wave that comprises the elimination unit among the korean patent application No.10-0566522 for example.
Heater relay 300 comprises relay K 2.Relay K 2 has two group relay contacts, is respectively by the first relay contact groups of contact 80,81 and 82 compositions with by contact 83,84 and the 85 second relay contact groups of forming.Contact 81 and 84 is connected respectively to the two ends of electromagnetic wave generation unit.Heater relay 300 also includes the transistor Q6 whether the control relay coil powers on.The collector electrode 91 of transistor Q6 is connected to the end 88 of diode D13 and an end 87 of coil, emitter 90 ground connection, the signal Shield_Reset that base stage 92 receives from control unit 200.The other end 86 of coil and the other end 89 of diode D13 are connected to the power supply of 12V jointly.Heater relay 300 is according to from whether conducting of the signal Shield_Reset oxide-semiconductor control transistors Q6 of control unit 200, thereby whether control powers on to coil, and then control electromagnetic wave generation unit 700 is connected to AC_Live or AC_New.
Ground connection detecting unit 400 comprises indicator light lighting unit 410 and optical sensor 420 and relay K 1.Relay K 1 has contact 62,63 and 64.Contact 62 is connected to AC_New through capacitor C8.Whether the contacting of relay K 1 and disconnection are controlled by the conducting of its coil.Based on the base stage through being connected to transistor Q5 67 from the signal LampA transistor Q5 conducting of control unit 200 or end, thereby whether the coil of control relay K1 switches on.The collector electrode 66 of transistor Q5 is connected to the forward end of diode D11 and an end 61 of coil, and the other end 60 of coil and the backward end of diode D11 are connected to the power supply of 12V jointly.One end 68 of indicator light lighting unit 410 is connected to contact 64.One end 71 of optical sensor 420 is connected to the power supply of 5V, and the other end 70 is through resistance R 17 ground connection.Optical sensor 420 provides signal Sheild_Check to control unit 200.
In transfer relay 500, by the work that receives through transistor Q8 from the signal LampB control relay K3 of control unit 200.The contact 77 of relay K 3 is connected to the other end 69 that links to each other with electromagnetic wave elimination unit 600 of indicator light lighting unit 410 through resistance R 18.The contact 78 of relay K 3 is connected to the contact 63 of relay K 1, and the contact 79 of relay K 3 is through capacitor C7 received signal AC_Live.The grounded emitter of transistor Q8, an end 76 of the coil of collector electrode and relay K 3 is connected to the power supply of 12V jointly through diode.
As mentioned above, electromagnetic wave is eliminated unit 600 and is eliminated the radiation of the electromagnetic wave of electromagnetic wave generation unit 700 generations to human body, and the electromagnetic wave that electromagnetic wave generation unit 700 produces is transmitted to the earth terminal of power supply commonly used.Therefore, be connected with high voltage source if electromagnetic wave is eliminated unit 600, electromagnetic wave just can not flow out, so electromagnetic wave elimination unit 600 should ground connection.Like this, disposed as the described ground connection detecting unit 400 of confirming the unit whether electromagnetic wave elimination unit 600 is connected with earth terminal.
As mentioned above, ground connection detecting unit 400 is connected in series with electromagnetic wave elimination unit 600.
Promptly, described ground connection detecting unit 400 is connected electromagnetic wave and eliminates between the electric wire of unit 600 and power supply commonly used, direction according to plug insertion socket, electromagnetic wave is eliminated unit 600 and is connected with earth terminal or is connected with high-voltage line, the device that detects this connection is described ground connection detecting unit 400, and transfer relay 500 is to make electromagnetic wave eliminate the device that unit 600 is connected with earth terminal.
That is, when ground connection detecting unit 400 detected electromagnetic wave and eliminates unit 600 and is connected with non-earth connection, control unit 200 received these signals, and driving transfer relay 500, and electromagnetic wave elimination unit 600 is connected with earth terminal.
Ground connection detecting unit 400 is by eliminating the indicator light lighting unit 410 that unit 600 is connected in series with electromagnetic wave and detecting light and the testing result signal is formed to the optical sensor 420 that control unit 200 transmits.
If the ground connection detecting unit 400 of Zu Chenging is connected with the non-earth connection that electromagnetic wave is eliminated unit 600 like this, high-tension current just flows into indicator light lighting unit 410 so, indicator light lighting unit 410 is lighted, and optical sensor 420 detects this situation and the consequential signal that detects is sent to control unit 200; Control unit 200 is confirmed that electromagnetic wave elimination unit 600 is not connected to earth terminal, and is transmitted drive signals to transfer relay 500 according to this signal, and transfer relay 500 is switched, and is connected to earth terminal so that electromagnetic wave is eliminated unit 600.
The following describes the concrete operations of electric and electronic device with the electromagnetic wave eliminator that constitutes as mentioned above.
At first, Closing Switch is by power subsystem 100 power supplies.After power supply, ground connection detecting unit 400 detects electromagnetic waves and eliminates whether ground connection of unit 600.
When the signal indication electromagnetic wave elimination unit 600 that ground connection detecting unit 400 detects is not connected with earth terminal, light the indicator light lighting unit 410 that constitutes ground connection detecting unit 400, when optical sensor 420 detects this situation, control unit 200 confirms that electromagnetic wave elimination unit 600 is connected with earth terminal, and transmit control signal to transfer relay 500, transfer relay 500 is operated, be connected with earth terminal so that electromagnetic wave is eliminated unit 600.
Like this, electromagnetic wave elimination unit 600 is connected with earth terminal.Then, to 700 power supplies of electromagnetic wave generation unit, drive electromagnetic wave generation unit 700 from power subsystem 100.
Type according to the electromagnetic wave generation unit 700 of such operation drives electromagnetic wave generation unit 700 off and on or constantly.
For for example electric warmer etc., the difference of the temperature that detects according to temperature sensor (not shown, undeclared), the running time or the cycle of operation of control unit control electromagnetic wave generation unit 700.
So far, in this manual, for the personnel that make the general knowledge with the related technical field of the utility model can easily understand and reproduce the utility model, be illustrated with reference to embodiment shown in the drawings, but should be appreciated that this only is exemplary explanation, as personnel with this technical field general knowledge, other embodiment that it can make various modification and be equal to according to embodiment of the present utility model.Therefore, protection range of the present utility model should be determined according to appended claim scope.
Claims (3)
1. electromagnetic wave eliminator, described electromagnetic wave eliminator comprise that the power subsystem (100), the electromagnetic wave that are used for electricity commonly used eliminate unit (600) and control unit (200), it is characterized in that described electromagnetic wave eliminator further comprises:
Receive the go forward side by side electromagnetic wave generation unit (700) of line operate of electricity according to the operation of heater relay (300) from power subsystem (100);
Eliminate unit (600) with electromagnetic wave and be connected in series, detect the ground connection detecting unit (400) whether electromagnetic wave elimination unit (600) is connected with the earth terminal of power supply commonly used;
The control electromagnetic wave eliminates the connection of unit so that electromagnetic wave is eliminated the transfer relay (500) that the unit is connected to earth terminal,
Wherein, each element of the described electromagnetic wave eliminator of control unit (200) control, electromagnetic wave is eliminated unit (600) and is eliminated the electromagnetic wave that is produced by electromagnetic wave generation unit (700).
2. electromagnetic wave eliminator as claimed in claim 1 is characterized in that ground connection detecting unit (400) is by eliminating indicator light lighting unit (410) and light that detects indicator light that unit (600) is connected in series and optical sensor (420) formation that the consequential signal that detects is sent to control unit (200) with electromagnetic wave.
3. electromagnetic wave eliminator as claimed in claim 1 or 2 is characterized in that electromagnetic wave generation unit (700) is the heater of electric warmer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201368272U CN201766808U (en) | 2010-03-22 | 2010-03-22 | Electromagnetic wave eliminating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201368272U CN201766808U (en) | 2010-03-22 | 2010-03-22 | Electromagnetic wave eliminating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201766808U true CN201766808U (en) | 2011-03-16 |
Family
ID=43719414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201368272U Expired - Lifetime CN201766808U (en) | 2010-03-22 | 2010-03-22 | Electromagnetic wave eliminating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201766808U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101713827B1 (en) * | 2015-09-17 | 2017-03-10 | 주식회사 디에스피 | Apparatus for removing electric and magnetic field |
-
2010
- 2010-03-22 CN CN2010201368272U patent/CN201766808U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101713827B1 (en) * | 2015-09-17 | 2017-03-10 | 주식회사 디에스피 | Apparatus for removing electric and magnetic field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110316 |
|
| CX01 | Expiry of patent term |