CN102818370A - Foot bath device - Google Patents
Foot bath device Download PDFInfo
- Publication number
- CN102818370A CN102818370A CN2012102985831A CN201210298583A CN102818370A CN 102818370 A CN102818370 A CN 102818370A CN 2012102985831 A CN2012102985831 A CN 2012102985831A CN 201210298583 A CN201210298583 A CN 201210298583A CN 102818370 A CN102818370 A CN 102818370A
- Authority
- CN
- China
- Prior art keywords
- pin
- live wire
- input
- zero
- zero live
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002184 metal Substances 0.000 claims abstract description 61
- 229910052751 metal Inorganic materials 0.000 claims abstract description 61
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 15
- 230000006698 induction Effects 0.000 claims description 12
- 230000004888 barrier function Effects 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 description 12
- 230000000153 supplemental effect Effects 0.000 description 4
- 239000012774 insulation material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000013500 performance material Substances 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a foot bath device which comprises a heating device, wherein the heating device comprises a heat conducting element and a metal shielding layer, and the metal shielding layer is electrically connected with a zero line of commercial power so as to reduce the potential difference between the heat conducting element and the ground. When the foot bath device is used, the heat conducting element of the heating device conducts heat with water, the metal shielding layer is arranged in the heating device of the foot bath device, and the metal shielding layer is electrically connected with the zero line of the mains supply, so that the electromotive force of the heat conducting element is reduced, the potential difference between the heat conducting element and the ground can be effectively reduced, the potential difference between the water heated by the heat conducting element and the ground is reduced, the use safety of a product is effectively improved, and the foot bath device is ingenious in design, simple in structure and easy to implement.
Description
Technical field
The present invention relates to the Pediluvium apparatus technical field, relate in particular to a kind of Pediluvium apparatus.
Background technology
Commercially available Pediluvium apparatus belongs to two electric appliances in the household electrical appliance safety standard, adopts double insulation or superinsulation mode usually, does not have grounding requirement.But because the particularity of Pediluvium apparatus environment for use; When Pediluvium apparatus was worked, the induced electricity that the distribution capacity that heater and water form produces can't be eliminated through ground connection, caused in the process of using Pediluvium apparatus; Induced electricity acts on one's body the human body; Make the people produce picotement, when serious even produce shouting pain, bring bigger healthy and safe hidden danger.
Summary of the invention
Main purpose of the present invention is to provide a kind of can effectively reduce faradic Pediluvium apparatus.
In order to achieve the above object; The present invention proposes a kind of Pediluvium apparatus, comprises heater, and said heater comprises heat conducting element and metal screen layer; Said metal screen layer is used for being electrically connected with the zero line of civil power, to reduce the electrical potential difference between said heat conducting element and the earth.
Preferably, said heat conducting element be with said Pediluvium apparatus in the metallic conductor that contacts of water.
Preferably; Said heater also comprises heating element heater and conductive connecting piece; Said heating element heater comprises input IN2; Said metal screen layer is arranged on the outside of said heating element heater, and is electrically connected with the input IN2 of said heating element heater through said conductive connecting piece, and the input IN2 of said heating element heater is electrically connected with the zero line of civil power.
Preferably, between said metal screen layer and the said heating element heater, and the outside of said metal screen layer is equipped with insulating barrier.
Preferably; This Pediluvium apparatus also comprises: be used for exchanging the zero live wire identification change-over circuit that the electrical zero live wire is discerned and changed; Said zero live wire identification change-over circuit comprises the output stage N of the alternating current zero line that is electrically connected with the zero line of civil power, and said metal screen layer is electrically connected with the output stage N of said alternating current zero line.
Preferably, said zero live wire identification change-over circuit comprises zero live wire recognition unit, zero live wire converting unit, and said zero live wire recognition unit comprises input and output, and said zero live wire converting unit comprises the output stage N of input and said alternating current zero line; The output of said zero live wire recognition unit is electrically connected with the input of zero live wire converting unit; The input of said zero live wire recognition unit is electrically connected with the output stage N of the alternating current zero line of said zero live wire converting unit.
Preferably, said zero live wire recognition unit comprises induction source A1, resistance R 1, resistance R 2, integrated chip IC1, and said integrated chip IC1 comprises: input pin AIN+, input pin AIN-, output pin JD, the 1st pin and the 2nd pin;
One end of said resistance R 1 is connected with the output stage N of said alternating current zero line; The other end of said resistance R 1 is connected with the input pin AIN+ of said integrated chip IC1 and is connected with an end of said resistance R 2, and the other end of said resistance R 2 reaches with said induction source A1 and is connected with the input pin AIN-of said integrated chip IC1; The output pin JD of said integrated chip IC1 is connected with the input of said zero live wire converting unit, and the 1st pin of said integrated chip IC1 meets signal ground GND, and the 2nd pin of said integrated chip IC1 meets dc source VDD.
Preferably, said zero live wire converting unit also comprises output stage L, triode Q1 and the double break double open switch K1 of alternating current fire wire, and said double break double open switch K1 comprises: T1 pin, T2 pin, T3 pin, T4 pin, T5 pin, T6 pin, T7 pin and T8 pin; The output pin JD of said integrated chip IC1 in the B utmost point of said triode Q1 and the said zero live wire recognition unit is connected; The E utmost point of said triode Q1 meets signal ground GND; The C utmost point of said triode Q1 is connected with the T2 pin of said double break double open switch K1; The T1 pin of said double break double open switch K1 is connected with dc source VDD; The T3 pin of said double break double open switch K1 is connected with alternating current the 1st input; The T4 pin of said double break double open switch K1 is connected with alternating current the 2nd input, and the T6 of said double break double open switch K1, T7 pin are connected with the output stage L of said alternating current fire wire, and the T5 of said double break double open switch K1, T8 pin all are connected with the output stage N of said alternating current zero line.
Preferably, said double break double open switch K1 realizes through the relay of two groups of conversions, perhaps realizes through two the one group relay of changing two groups of outputs; Or through the realization of solenoid controlled two-way switch.
Preferably, said induction source A1 is the conductive body that does not contact with ground; Or be the conductive body that contacts with ground; Or be the human body that contacts with ground; Perhaps form by the lead coiling.
Preferably; Said zero live wire identification change-over circuit comprises induced voltage detecting unit, zero live wire recognition unit and zero live wire converting unit; Said induced voltage detecting unit comprises input and output; Said zero live wire recognition unit comprises input and output, and said zero live wire converting unit comprises the output stage N of control end and said alternating current zero line;
The output of said induced voltage detecting unit is electrically connected with the input of said zero live wire recognition unit, and the output of said zero live wire recognition unit is electrically connected with the control end of said zero live wire converting unit; Said induced voltage detecting unit input is electrically connected with the output stage N of the alternating current zero line of said zero live wire converting unit.
Preferably; Said induced voltage detecting unit comprises the first metal pole piece, the second metal pole piece, rectifier bridge ZD11 and modulus conversion chip ADC11, resistance R 11, resistance R 12, and said modulus conversion chip ADC11 comprises input pin AIN+, input pin AIN-and output;
The wherein input of said rectifier bridge ZD11 is connected with the output stage N of said alternating current zero line through the first metal pole piece; Another input of said rectifier bridge ZD11 is connected with the said second metal pole piece; The positive output end of said rectifier bridge ZD11 is connected with an end of said resistance R 11; The other end of said resistance R 11 is connected with the input pin AIN+ of said modulus conversion chip ADC11 and is connected with an end of said resistance R 12, and the other end of said resistance R 12 is connected with the negative output terminal of said rectifier bridge ZD11 and is connected with the input pin AIN-of said modulus conversion chip ADC11; The output of said modulus conversion chip ADC11 connects the input of said zero live wire recognition unit.
Preferably, said zero live wire recognition unit comprises induced voltage process chip IC21, triode Q21 and resistance R 21, and said induced voltage process chip IC21 comprises the first, second, third and the 4th pin; Said modulus conversion chip ADC11 comprises first, second and tripod;
First, second and third pin of said induced voltage process chip IC21 is connected with first, second and third pin of said modulus conversion chip ADC11 respectively; The 4th pin of said induced voltage process chip IC21 is connected with the B utmost point of said triode Q21 through said resistance R 21; The negative output terminal of said rectifier bridge ZD11 in the E utmost point of said triode Q21 and the said induced voltage detecting unit is connected, and the C utmost point of said triode Q21 is connected with the control end of said zero live wire converting unit.
Preferably, said zero live wire converting unit comprises double break double open switch K31, and said double break double open switch K31 comprises T1 pin, T2 pin, T3 pin, T4 pin, T5 pin, T6 pin, T7 pin and T8 pin;
The T1 pin of said double break double open switch K31 is connected with dc source; The C utmost point of said triode Q21 in the T2 pin of said double break double open switch K31 and the said zero live wire recognition unit is connected; The T3 of said double break double open switch K31, T6 pin are connected with alternating current the 1st input respectively; The T4 of said double break double open switch K31, T5 pin are connected with alternating current the 2nd input respectively, and the T7 of said double break double open switch K31, T8 pin are connected with the output stage L of said alternating current fire wire, the output stage N of alternating current zero line respectively.
A kind of Pediluvium apparatus that the present invention proposes, when Pediluvium apparatus used, the heat conducting element and the water of heater conducted heat; The present invention is through being provided with metal screen layer in the heater of Pediluvium apparatus; And this metal screen layer is electrically connected with the zero line of civil power, realizes reducing the electromotive force of heat conducting element, so can effectively reduce the electrical potential difference between heat conducting element and the earth; Thereby reduce by the water of heat conducting element heating and the electrical potential difference between the earth; Thereby effectively improve the product safety in utilization, and this Pediluvium apparatus design is ingenious, simple in structure, easy to implement.
Description of drawings
Fig. 1 is the structural representation of Pediluvium apparatus first embodiment of the present invention;
Fig. 2 is the perspective view of heater shown in Figure 1;
Fig. 3 is the structural representation of Pediluvium apparatus second embodiment of the present invention.
In order to make technical scheme of the present invention clearer, clear, will combine accompanying drawing to do further to detail below.
The specific embodiment
With reference to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of Pediluvium apparatus first embodiment of the present invention.Fig. 2 is the perspective view of heater shown in Figure 1.
A kind of Pediluvium apparatus that first embodiment of the invention proposes; Comprise and being used for exchanging the zero live wire identification change-over circuit 10 that the electrical zero live wire is discerned and changed; And heater 20; Said zero live wire identification change-over circuit 10 comprises the output stage N of the alternating current zero line that is electrically connected with the zero line of civil power, and said heater 20 has metal screen layer 22, and said metal screen layer 22 is connected with the output stage N of the alternating current zero line of said zero live wire identification change-over circuit 10.
Particularly; Said heater 20 comprises heat conducting element, heating element heater 21 and conductive connecting piece 26; Wherein, heat conducting element be with Pediluvium apparatus in the metallic conductor that contacts of water, the water in the Pediluvium apparatus is conducted heat; It can adopt the heat exchanging water pipe 27 shown in Fig. 1, perhaps can also be the metal heat-conducting body that contacts with water.
Said heating element heater 21 comprises input IN2; The outside of heating element heater 21 is provided with metal screen layer 22; Metal screen layer 22 is connected with the input IN2 of heating element heater 21 through conductive connecting piece 26; The input IN2 of heating element heater 21 is connected with the output stage N of the alternating current zero line of zero live wire identification change-over circuit 10, thereby realizes that zero live wire discerns being connected of metal screen layer 22 of output stage N and heater 20 of the alternating current zero line of change-over circuit 10, makes the metal screen layer 22 of said heater 20 be electrically connected with the zero line of civil power; Reduce the electromotive force of heat conducting element; So can effectively reduce the electrical potential difference between heat conducting element and the earth, thereby water that is heated by heat conducting element in the reduction Pediluvium apparatus and the electrical potential difference between the earth effectively improve the product safety in utilization.
Further, be provided with insulating barrier 23 between said metal screen layer 22 and the heating element heater 21, the arranged outside of metal screen layer 22 has insulating barrier 23.
The outside that is arranged at the insulating barrier 23 in metal screen layer 22 outsides also is arranged with supplemental dielectric layer 24.
Said insulating barrier 23 and supplemental dielectric layer 24 include heat conduction body 25 and the heat conductivility good insulation performance material of sealing can in heat conduction body 25.
In the present embodiment; Said zero live wire identification change-over circuit 10 comprises zero live wire recognition unit 11, zero live wire converting unit 12; Said zero live wire recognition unit 11 comprises input and output, and said zero live wire converting unit 12 comprises the output stage N of input and said alternating current zero line; The output of zero live wire recognition unit 11 is electrically connected with the input of zero live wire converting unit 12, and the input of said zero live wire recognition unit 11 is electrically connected with the output stage N of the alternating current zero line of said zero live wire converting unit 12.
Said zero live wire recognition unit 11 comprises induction source A1, resistance R 1, resistance R 2, integrated chip IC1, and said integrated chip IC1 comprises: input pin AIN+, input pin AIN-, output pin JD, the 1st pin and the 2nd pin; One end of resistance R 1 is connected with the output stage N of alternating current zero line, and the other end of resistance R 1 is connected with the input pin AIN+ of integrated chip IC1 and is connected with an end of resistance R 2, and the other end of resistance R 2 reaches with induction source A1 and is connected with the input pin AIN-of integrated chip IC1; The output pin JD of integrated chip IC1 is connected with the input of zero live wire converting unit 12, and the 1st pin of integrated chip IC1 meets signal ground GND, and the 2nd pin of integrated chip IC1 meets dc source VDD.
Said zero live wire converting unit 12 also comprises output stage L, triode Q1 and the double break double open switch K1 of alternating current fire wire, and said double break double open switch K1 comprises: T1 pin, T2 pin, T3 pin, T4 pin, T5 pin, T6 pin, T7 pin and T8 pin; The output pin JD of integrated chip IC1 in the B utmost point of triode Q1 and the zero live wire recognition unit 11 is connected; The E utmost point of triode Q1 meets signal ground GND; The C utmost point of triode Q1 is connected with the T2 pin of double break double open switch K1; The T1 pin of double break double open switch K1 is connected with dc source VDD, and the T3 pin of double break double open switch K1 is connected with alternating current the 1st input 1, and the T4 pin of double break double open switch K1 is connected with alternating current the 2nd input 2; The T6 of double break double open switch K1, T7 pin are connected with the output stage L of alternating current fire wire, and the T5 of double break double open switch K1, T8 pin are connected with the output stage N of alternating current zero line.
Said double break double open switch K1 realizes through the relay of two groups of conversions, also can realize through two the one group relay of changing two groups of outputs, or realize through the solenoid controlled two-way switch.
In the present embodiment; Heating element heater 21 adopts the resistance heating wire; Be provided with two; Be symmetricly set in heat exchanging water pipe 27 both sides, wherein the input IN2 of a heating element heater 21 is connected with the zero line output stage N of zero live wire identification change-over circuit 10, and the input IN1 of another heating element heater 21 is connected with the live wire output stage L of zero live wire identification change-over circuit 10; Metal screen layer 22 adopts copper pipe; Insulating barrier 23 is formed in heat conduction body 25 by heat-conducting insulation material sealing can respectively with supplemental dielectric layer 24.Same sealing fills out to irritate in the cavity that forms between heating element heater 21 inside and heating element heater 21 and the metal screen layer 22 has heat-conducting insulation material.Said heat-conducting insulation material is a magnesia powder.
The operation principle of present embodiment is: during use; Product is connected civil power; 11 pairs of the zero live wire recognition units of alternating current identification change-over circuit 10 connect one of them input of civil power and the induced voltage of induction source A1 detects, and carry out the numerical values recited comparison of induced voltage, represent that when induced voltage is high detected mains electricity input end is a live wire;, induced electricity then representes that detected mains electricity input end is a zero line when forcing down; Integrated chip IC1 differentiation finishing back requires to output a control signal to zero live wire converting unit 12 according to predefined zero live wire output and carries out the conversion of zero live wire, makes the zero live wire of the alternating current of output remain constant; What guarantee that the metal screen layer 22 of heater 20 connects is the zero line of alternating current, thus the induced voltage when reducing Pediluvium apparatus work.
The comparison of the induced voltage size of above-mentioned zero live wire recognition unit 11; Can be that relay through zero live wire converting unit 12 switches; Detect alternating current two inputs relatively to the laggard line number value size of the induced voltage of induction source A1; What induced voltage was high is live wire, and what induced electricity forced down is zero line; Also can in the integrated chip of zero live wire recognition unit 11, set a reference value, compare detected induced voltage and this reference value, induced voltage is a live wire greater than this reference value, and induced voltage is a zero line less than this reference value.
Need to prove that in other embodiments, said heating element heater 21 can also adopt the PTC potsherd, metal screen layer 22 can be aluminium foil, Copper Foil or tinfoil paper; Insulating barrier 23, supplemental dielectric layer 24 form for the Kapton stack.
In addition, the induction source A1 in the present embodiment zero live wire recognition unit 10 can adopt multiple mode, such as; Induction source A1 can be the conductive body that does not contact with ground; Can also be the conductive body that contacts with ground, can also be the human body that contacts with ground, also can be formed by the lead coiling.Wherein, conductive body is the most frequently used is sheet metal.
This enforcement is at first through being provided with the structure of a sheet metal in electrical equipment; When Pediluvium apparatus uses; The induced voltage that produces between two inputs of the zero live wire recognition unit 11 detection alternating currents of the usefulness zero other change-over circuit 10 of live wire and the sheet metal through comparing the size of induced voltage, carries out the identification of zero line, live wire; And output to the conversion that zero live wire converting unit 12 is carried out zero live wire to the result of identification, make the output stage of zero live wire identification change-over circuit 10 zero lines and live wire remain constant; Be connected to the zero line output stage of zero live wire identification change-over circuit 10 on the metal screen layer of Pediluvium apparatus heater 20 then; Make the metal screen layer 22 in the heater of Pediluvium apparatus be electrically connected with the zero line of civil power; Reduce heat exchanging water pipe 27 electromotive force; So can effectively reduce the electrical potential difference between heat exchanging water pipe 27 and the earth, thereby reduce, the induced electricity when significantly reducing Pediluvium apparatus work by the water of heat exchanging water pipe's 27 heating and the electrical potential difference between the earth.
As shown in Figure 3; A kind of Pediluvium apparatus that second embodiment of the invention proposes; Similar with above-mentioned first embodiment; Include zero live wire identification change-over circuit 10 and heater 20, said heater 20 has metal screen layer 22, and said metal screen layer 22 is connected with the output stage N of the alternating current zero line of said zero live wire identification change-over circuit 10.Wherein the structure of heater 20 is identical with first embodiment, repeats no more at this.
The difference of present embodiment and above-mentioned first embodiment is that present embodiment zero live wire identification change-over circuit 10 structures are different with above-mentioned first embodiment.
Particularly; As shown in Figure 3; In the present embodiment, said zero live wire identification change-over circuit 10 comprises induced voltage detecting unit 111, zero live wire recognition unit 222, zero live wire converting unit 333, and said induced voltage detecting unit 111 comprises input and output; Said zero live wire recognition unit 222 comprises input and output, and said zero live wire converting unit 333 comprises the output stage N of control end and said alternating current zero line; Wherein the output of induced voltage detecting unit 111 is electrically connected with the input of zero live wire recognition unit 222, and the output of zero live wire recognition unit 222 is electrically connected with the control end of zero live wire converting unit 333; Said induced voltage detecting unit 111 inputs are electrically connected with the output stage N of the alternating current zero line of said zero live wire converting unit 333.
Said induced voltage detecting unit 111 comprises the first metal pole piece 11, the second metal pole piece 12, rectifier bridge ZD11 and modulus conversion chip ADC11, resistance R 11, resistance R 12, and said modulus conversion chip ADC11 comprises input pin AIN+, input pin AIN-and output; The first metal pole piece, 11 1 ends are connected with the output stage N of alternating current zero line; The other end is connected with the input of rectifier bridge ZD11; The second metal utmost point 12 is connected with another input of rectifier bridge ZD11; The positive output end of rectifier bridge ZD11 is connected with the input pin AIN+ of modulus conversion chip ADC11 through resistance R 11; The negative output terminal of rectifier bridge ZD11 is connected with the input pin AIN+ of modulus conversion chip ADC11 through resistance R 12, and the negative output terminal of rectifier bridge ZD11 is connected with the input pin AIN-of modulus conversion chip ADC11, and the output of modulus conversion chip ADC11 connects the input of zero live wire recognition unit 222.
Described zero live wire recognition unit 222 comprises induced voltage process chip IC21, triode Q21 and resistance R 21, and said induced voltage process chip IC21 comprises the first, second, third and the 4th pin; Said modulus conversion chip ADC11 comprises first, second and tripod; First, second and third pin of induced voltage process chip IC21 is connected with first, second and third pin of modulus conversion chip ADC11 respectively; The 4th pin of induced voltage process chip IC21 is connected with the B utmost point of triode Q21 through resistance R 21, and the negative pole of the rectifier bridge ZD11 in the E utmost point of triode Q21 and the induced voltage detecting unit 111 is connected.。
Zero live wire converting unit 333 comprises double break double open switch K31, and said double break double open switch K31 comprises T1 pin, T2 pin, T3 pin, T4 pin, T5 pin, T6 pin, T7 pin and T8 pin; The T1 pin of double break double open switch K31 is connected with dc source; The C utmost point of triode Q21 in the T2 pin of double break double open switch K31 and the zero live wire recognition unit 222 is connected; Alternating current the 1st input is connected with T3, the T6 pin of double break double open switch K31 respectively; Alternating current the 2nd input is connected with T4, the T5 pin of double break double open switch K31 respectively, and the T7 of double break double open switch K31, T8 pin are connected with output stage L, the N of alternating current fire wire, zero line respectively.
Described double break double open switch K31 can realize through the relay of two groups of conversions, also can realize through the solenoid controlled two-way switch.
The operation principle of present embodiment is: during use; Product is connected civil power; Induced voltage detecting unit 111; Induced voltage between the metal pole piece of one of them input of connecting civil power and the metal pole piece relative with it detects, and detected induced voltage is transported to numerical values recited that zero live wire recognition unit 222 carries out induced voltage relatively, representes that when induced voltage is high detected mains electricity input end is a live wire;, induced electricity then representes that detected mains electricity input end is a zero line when forcing down; Zero live wire recognition unit 222 differentiations finishing back requires to output a control signal to zero live wire converting unit 333 according to predefined zero live wire output and carries out the conversion of zero live wire, makes the interchange electrical zero live wire of input meet the setting requirement, and what the metal screen layer 22 of assurance heater 20 connected is the zero line of alternating current; Induced voltage when working to reduce Pediluvium apparatus improves the product safety in utilization.
The comparison of the induced voltage size of above-mentioned zero live wire recognition unit 222; Can be that relay through zero live wire converting unit 333 switches; Detect alternating current two inputs to comparing with reference to the laggard line number value size of the induced voltage of metal pole piece; What induced voltage was high is live wire, and what induced electricity forced down is zero line; Also can in the induced voltage process chip of zero live wire recognition unit 222, set a reference value; Compare detected induced voltage from the induced voltage detecting unit and this reference value; Induced voltage is a live wire greater than this reference value, and induced voltage is a zero line less than this reference value.
The embodiment of the invention is connected the zero line of alternating current through zero live wire identification change-over circuit 10 with the metal screen layer 22 of heater 20; That guarantee metal screen layer 22 connections is the zero line N of alternating current; Thereby the induced electricity in the time of can significantly reducing Pediluvium apparatus work; Improve the product safety in utilization, and this Pediluvium apparatus design is ingenious, simple in structure, easy to implement.
In addition, the present invention also proposes the 3rd embodiment, and present embodiment and above-mentioned two kinds of embodiment differences are; In the present embodiment; Directly the metal screen layer 22 with heater 20 is electrically connected with the zero line of civil power, to reduce the electromotive force of heat conducting element in the said heater 20, so can effectively reduce the electrical potential difference between heat conducting element and the earth; Thereby by the water of heat conducting element heating and the electrical potential difference between the earth, effectively improve the product safety in utilization in the reduction Pediluvium apparatus.
Comparing the foregoing description is connected the zero line of alternating current through zero live wire identification change-over circuit 10 with the metal screen layer 22 of heater 20; The present embodiment circuit structure is more simplified; The zero line that just can't whether connect alternating current to the metal screen layer 22 of Pediluvium apparatus heater 20 is discerned automatically, but can connect again through the manual mode plug that Pediluvium apparatus is anti-inserted.What present embodiment can guarantee equally that the metal screen layer 22 of heater 20 connects is the zero line of alternating current, and the induced voltage when reducing Pediluvium apparatus work improves the product safety in utilization.
The above is merely the preferred embodiments of the present invention; Be not so limit claim of the present invention; Every equivalent structure or flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the present invention.
Claims (14)
1. a Pediluvium apparatus comprises heater, and said heater comprises heat conducting element; It is characterized in that; Said heater also comprises metal screen layer, and said metal screen layer is used for being electrically connected with the zero line of civil power, to reduce the electrical potential difference between said heat conducting element and the earth.
2. Pediluvium apparatus according to claim 1 is characterized in that, said heat conducting element be with said Pediluvium apparatus in the metallic conductor that contacts of water.
3. Pediluvium apparatus according to claim 1; It is characterized in that; Said heater also comprises heating element heater and conductive connecting piece, and said heating element heater comprises input IN2, and said metal screen layer is arranged on the outside of said heating element heater; And be electrically connected with the input IN2 of said heating element heater through said conductive connecting piece, the input IN2 of said heating element heater is electrically connected with the zero line of civil power.
4. Pediluvium apparatus according to claim 3 is characterized in that, between said metal screen layer and the said heating element heater, and the outside of said metal screen layer is equipped with insulating barrier.
5. Pediluvium apparatus according to claim 3; It is characterized in that; Also comprise: be used for exchanging the zero live wire identification change-over circuit that the electrical zero live wire is discerned and changed; Said zero live wire identification change-over circuit comprises the output stage N of the alternating current zero line that is electrically connected with the zero line of civil power, and said metal screen layer is electrically connected with the output stage N of said alternating current zero line.
6. Pediluvium apparatus according to claim 5; It is characterized in that; Said zero live wire identification change-over circuit comprises zero live wire recognition unit, zero live wire converting unit; Said zero live wire recognition unit comprises input and output, and said zero live wire converting unit comprises the output stage N of input and said alternating current zero line; The output of said zero live wire recognition unit is electrically connected with the input of zero live wire converting unit; The input of said zero live wire recognition unit is electrically connected with the output stage N of the alternating current zero line of said zero live wire converting unit.
7. Pediluvium apparatus according to claim 6; It is characterized in that; Said zero live wire recognition unit comprises induction source A1, resistance R 1, resistance R 2, integrated chip IC1, and said integrated chip IC1 comprises: input pin AIN+, input pin AIN-, output pin JD, the 1st pin and the 2nd pin;
One end of said resistance R 1 is connected with the output stage N of said alternating current zero line; The other end of said resistance R 1 is connected with the input pin AIN+ of said integrated chip IC1 and is connected with an end of said resistance R 2, and the other end of said resistance R 2 reaches with said induction source A1 and is connected with the input pin AIN-of said integrated chip IC1; The output pin JD of said integrated chip IC1 is connected with the input of said zero live wire converting unit, and the 1st pin of said integrated chip IC1 meets signal ground GND, and the 2nd pin of said integrated chip IC1 meets dc source VDD.
8. Pediluvium apparatus according to claim 7; It is characterized in that; Said zero live wire converting unit also comprises output stage L, triode Q1 and the double break double open switch K1 of alternating current fire wire, and said double break double open switch K1 comprises: T1 pin, T2 pin, T3 pin, T4 pin, T5 pin, T6 pin, T7 pin and T8 pin; The output pin JD of said integrated chip IC1 in the B utmost point of said triode Q1 and the said zero live wire recognition unit is connected; The E utmost point of said triode Q1 meets signal ground GND; The C utmost point of said triode Q1 is connected with the T2 pin of said double break double open switch K1; The T1 pin of said double break double open switch K1 is connected with dc source VDD; The T3 pin of said double break double open switch K1 is connected with alternating current the 1st input; The T4 pin of said double break double open switch K1 is connected with alternating current the 2nd input, and the T6 of said double break double open switch K1, T7 pin are connected with the output stage L of said alternating current fire wire, and the T5 of said double break double open switch K1, T8 pin all are connected with the output stage N of said alternating current zero line.
9. Pediluvium apparatus according to claim 8 is characterized in that, said double break double open switch K1 realizes through the relay of two groups of conversions, perhaps realizes through two the one group relay of changing two groups of outputs; Or through the realization of solenoid controlled two-way switch.
10. according to claim 7,8 or 9 described Pediluvium apparatus, it is characterized in that said induction source A1 is the conductive body that does not contact with ground; Or be the conductive body that contacts with ground; Or be the human body that contacts with ground; Perhaps form by the lead coiling.
11. Pediluvium apparatus according to claim 5; It is characterized in that; Said zero live wire identification change-over circuit comprises induced voltage detecting unit, zero live wire recognition unit and zero live wire converting unit; Said induced voltage detecting unit comprises input and output, and said zero live wire recognition unit comprises input and output, and said zero live wire converting unit comprises the output stage N of control end and said alternating current zero line;
The output of said induced voltage detecting unit is electrically connected with the input of said zero live wire recognition unit, and the output of said zero live wire recognition unit is electrically connected with the control end of said zero live wire converting unit; Said induced voltage detecting unit input is electrically connected with the output stage N of the alternating current zero line of said zero live wire converting unit.
12. Pediluvium apparatus according to claim 11; It is characterized in that; Said induced voltage detecting unit comprises the first metal pole piece, the second metal pole piece, rectifier bridge ZD11 and modulus conversion chip ADC11, resistance R 11, resistance R 12, and said modulus conversion chip ADC11 comprises input pin AIN+, input pin AIN-and output;
The wherein input of said rectifier bridge ZD11 is connected with the output stage N of said alternating current zero line through the first metal pole piece; Another input of said rectifier bridge ZD11 is connected with the said second metal pole piece; The positive output end of said rectifier bridge ZD11 is connected with an end of said resistance R 11; The other end of said resistance R 11 is connected with the input pin AIN+ of said modulus conversion chip ADC11 and is connected with an end of said resistance R 12, and the other end of said resistance R 12 is connected with the negative output terminal of said rectifier bridge ZD11 and is connected with the input pin AIN-of said modulus conversion chip ADC11; The output of said modulus conversion chip ADC11 connects the input of said zero live wire recognition unit.
13. Pediluvium apparatus according to claim 12 is characterized in that, said zero live wire recognition unit comprises induced voltage process chip IC21, triode Q21 and resistance R 21, and said induced voltage process chip IC21 comprises the first, second, third and the 4th pin; Said modulus conversion chip ADC11 comprises first, second and tripod;
First, second and third pin of said induced voltage process chip IC21 is connected with first, second and third pin of said modulus conversion chip ADC11 respectively; The 4th pin of said induced voltage process chip IC21 is connected with the B utmost point of said triode Q21 through said resistance R 21; The negative output terminal of said rectifier bridge ZD11 in the E utmost point of said triode Q21 and the said induced voltage detecting unit is connected, and the C utmost point of said triode Q21 is connected with the control end of said zero live wire converting unit.
14. Pediluvium apparatus according to claim 13 is characterized in that, said zero live wire converting unit comprises double break double open switch K31, and said double break double open switch K31 comprises T1 pin, T2 pin, T3 pin, T4 pin, T5 pin, T6 pin, T7 pin and T8 pin;
The T1 pin of said double break double open switch K31 is connected with dc source; The C utmost point of said triode Q21 in the T2 pin of said double break double open switch K31 and the said zero live wire recognition unit is connected; The T3 of said double break double open switch K31, T6 pin are connected with alternating current the 1st input respectively; The T4 of said double break double open switch K31, T5 pin are connected with alternating current the 2nd input respectively, and the T7 of said double break double open switch K31, T8 pin are connected with the output stage L of said alternating current fire wire, the output stage N of alternating current zero line respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210298583.1A CN102818370B (en) | 2012-08-20 | 2012-08-20 | Lavipeditum device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210298583.1A CN102818370B (en) | 2012-08-20 | 2012-08-20 | Lavipeditum device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102818370A true CN102818370A (en) | 2012-12-12 |
| CN102818370B CN102818370B (en) | 2014-10-08 |
Family
ID=47302649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210298583.1A Expired - Fee Related CN102818370B (en) | 2012-08-20 | 2012-08-20 | Lavipeditum device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102818370B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104023422A (en) * | 2014-03-21 | 2014-09-03 | 上海泰昌健康科技股份有限公司 | Heating device capable of eliminating induction electricity |
| CN104066212A (en) * | 2014-06-30 | 2014-09-24 | 厦门昰能机电科技有限公司 | Method and device for eliminating inductive charge of heater |
| CN104184114A (en) * | 2013-05-21 | 2014-12-03 | 吴伟 | Live and null line adaptive correction method and system for electricity-leakage protective device |
| CN104251562B (en) * | 2014-10-08 | 2016-10-26 | 宁波皇威健康科技有限公司 | A kind of influence electricity Pediluvium apparatus |
| CN112524809A (en) * | 2020-11-23 | 2021-03-19 | 蓓慈电器有限公司 | Multi-combination heating system and foot bath device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2253886Y (en) * | 1995-12-07 | 1997-05-07 | 阮文华 | Active single-phase zero-connecting protector |
| US20010020615A1 (en) * | 1999-07-27 | 2001-09-13 | Bradenbaugh Kenneth A. | Method and apparatus for detecting a dry fire condition in a water heater |
| CN2514727Y (en) * | 2001-08-23 | 2002-10-09 | 步彬亭 | Water heating health-care electrothermal blanket |
| CN101716059A (en) * | 2009-12-02 | 2010-06-02 | 陈业勷 | Automatic point massage foot-bath apparatus |
| CN101964521A (en) * | 2009-07-24 | 2011-02-02 | 沈为国 | Automatic identification converter for zero and fire wires of alternating-current power supply |
| CN202813729U (en) * | 2012-08-20 | 2013-03-20 | 美的集团股份有限公司 | Foot bath device |
-
2012
- 2012-08-20 CN CN201210298583.1A patent/CN102818370B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2253886Y (en) * | 1995-12-07 | 1997-05-07 | 阮文华 | Active single-phase zero-connecting protector |
| US20010020615A1 (en) * | 1999-07-27 | 2001-09-13 | Bradenbaugh Kenneth A. | Method and apparatus for detecting a dry fire condition in a water heater |
| CN2514727Y (en) * | 2001-08-23 | 2002-10-09 | 步彬亭 | Water heating health-care electrothermal blanket |
| CN101964521A (en) * | 2009-07-24 | 2011-02-02 | 沈为国 | Automatic identification converter for zero and fire wires of alternating-current power supply |
| CN101716059A (en) * | 2009-12-02 | 2010-06-02 | 陈业勷 | Automatic point massage foot-bath apparatus |
| CN202813729U (en) * | 2012-08-20 | 2013-03-20 | 美的集团股份有限公司 | Foot bath device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184114A (en) * | 2013-05-21 | 2014-12-03 | 吴伟 | Live and null line adaptive correction method and system for electricity-leakage protective device |
| CN104023422A (en) * | 2014-03-21 | 2014-09-03 | 上海泰昌健康科技股份有限公司 | Heating device capable of eliminating induction electricity |
| CN104023422B (en) * | 2014-03-21 | 2016-01-06 | 上海泰昌健康科技股份有限公司 | One can eliminate faradic heater |
| CN104066212A (en) * | 2014-06-30 | 2014-09-24 | 厦门昰能机电科技有限公司 | Method and device for eliminating inductive charge of heater |
| CN104066212B (en) * | 2014-06-30 | 2016-01-20 | 厦门昰能机电科技有限公司 | Eliminate method and the device of heater charge inducing |
| CN104251562B (en) * | 2014-10-08 | 2016-10-26 | 宁波皇威健康科技有限公司 | A kind of influence electricity Pediluvium apparatus |
| CN112524809A (en) * | 2020-11-23 | 2021-03-19 | 蓓慈电器有限公司 | Multi-combination heating system and foot bath device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102818370B (en) | 2014-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102818370B (en) | Lavipeditum device | |
| JP2017529205A5 (en) | ||
| CN102655323B (en) | A kind of live wire automatic identification change-over circuit of alternating current zero | |
| CN106099560B (en) | A kind of automatic clamp connected power connection equipment based on infrared ray identification | |
| CN202813729U (en) | Foot bath device | |
| CN208174004U (en) | Multipurpose kation anion generator | |
| CN206878197U (en) | A kind of Quick connector plug for electrical wire | |
| CN206135121U (en) | Novel stromatolite is female to be arranged | |
| CN103439994B (en) | PTC/NTC dual control temperature control devices | |
| CN202616772U (en) | Automatic identification and conversion circuit for alternating current zero and live wires | |
| CN102830304B (en) | Many power input | |
| CN207691412U (en) | A kind of thermal-shutdown circuit of LED drive power | |
| CN207217922U (en) | Intelligent socket | |
| CN204153990U (en) | A kind of influence electricity Pediluvium apparatus | |
| CN104251562B (en) | A kind of influence electricity Pediluvium apparatus | |
| CN113133137A (en) | Heating circuit | |
| CN204167835U (en) | Energy-saving common box bus device | |
| CN203260542U (en) | Residual current operated circuit breaker | |
| CN204012650U (en) | Single phase poaer supply prevention of electric shock device | |
| CN204155895U (en) | A kind of fuse conducting structure being applicable to ring main unit | |
| CN207458808U (en) | A kind of switch for electric therapeutic apparatus control output current | |
| CN210326359U (en) | Socket circuit | |
| WO2018078507A3 (en) | Alternating current load control module | |
| CN107493669A (en) | A kind of 1P guide rail double-gate intelligent breakers identified with electric energy metrical and electrical equipment | |
| CN202613779U (en) | Low-induction-power foot bath heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Applicant after: MIDEA GROUP Co.,Ltd. Address before: 528311 Beijiao, Foshan, Shunde District, the town of Guangdong, the United States Avenue, No. 6 Applicant before: Midea Group |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20190820 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |