CN114184825A - Detection device, ion generator and air purifier - Google Patents

Detection device, ion generator and air purifier Download PDF

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Publication number
CN114184825A
CN114184825A CN202111492316.3A CN202111492316A CN114184825A CN 114184825 A CN114184825 A CN 114184825A CN 202111492316 A CN202111492316 A CN 202111492316A CN 114184825 A CN114184825 A CN 114184825A
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China
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ion
voltage
light emitting
light
head
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CN202111492316.3A
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Chinese (zh)
Inventor
孙吉平
殷广英
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Beijing Senseshield Technology Co Ltd
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Beijing Senseshield Technology Co Ltd
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Priority to CN202111492316.3A priority Critical patent/CN114184825A/en
Publication of CN114184825A publication Critical patent/CN114184825A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/22Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-emitting devices, e.g. LED, optocouplers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00Disinfection, sterilisation or deodorisation of air
    • A61L9/16Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/22Ionisation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T23/00Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere

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  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Elimination Of Static Electricity (AREA)

Abstract

The application provides a detection device, an ion generator and an air purifier, wherein the detection device comprises a light-emitting component, a light-sensing unit and a controller, the light-emitting component is coupled with an ion emission head, and the light-emitting intensity of the light-emitting component is positively or negatively correlated with the voltage at two ends of the ion emission head; the light intensity sensing unit is used for sensing the luminous intensity of the luminous component in a non-contact manner; the controller is connected with the light intensity sensing unit and configured to determine the voltage across the ion emitting head based on the sensing result of the light intensity sensing unit. This detection device has realized electrical isolation between light intensity induction element and luminous component, can avoid the high voltage direct action of ion emission head to light intensity induction element and controller, can enough avoid light intensity induction element and controller to damage under the effect of high voltage, can also avoid the high voltage to pass through the controller and apply in the human body for this detection device has higher security.

Description

Detection device, ion generator and air purifier
Technical Field
The application relates to the technical field of voltage detection, in particular to a detection device, an ion generator and an air purifier.
Background
The negative ion generator is a device for generating air negative ions, and after input direct current or alternating current is processed by an EMI processing circuit and a lightning stroke protection circuit, the device carries out overvoltage current limiting through a pulse type circuit; high-low voltage isolation and other lines are raised to alternating current high voltage, then pure direct current negative high voltage is obtained after rectification and filtration through special grade electronic materials, the direct current negative high voltage is connected to a release tip made of metal or carbon elements, high corona is generated by utilizing the tip direct current high voltage, a large amount of electrons (e-) are emitted at high speed, the electrons cannot exist in the air for a long time (the service life of the existing electrons is only nS grade), and the electrons can be immediately captured by oxygen molecules (O2) in the air, so that air negative ions are generated.
In order to accurately adjust the output voltage of the negative ion generator and avoid overhigh and overlow, the output voltage of the negative ion generator needs to be measured firstly, and then the output of the negative ion generator is adjusted according to the measured data to form effective closed-loop control.
At present, voltage measurement of low-power high-voltage output equipment is often realized by using a resistor voltage division mode, for example, a commonly used high-voltage rod for measuring 20KV voltage is internally connected in series by using 1000M and 1M resistors, and the overall voltage is reversely deduced by measuring the voltage divided at two ends of the 1M resistor. The resistance voltage division mode circuit is simple, the result is more accurate, and the resistance voltage division mode circuit is applied to many aspects.
However, voltage measurement is performed by a voltage division method, and the detection circuit needs to be directly connected to a component to be measured through a voltage division resistor. When the ion source is applied to an anion generator, a detection circuit needs to be directly connected with an ion emitting head through a divider resistor, the voltage applied to two ends of the ion emitting head is high, if the divider resistor is broken down, the detection circuit is easily damaged, and even the life safety of a user can be threatened.
Disclosure of Invention
In view of the above problems in the prior art, the present application provides a detection device, an ionizer and an air purifier with high safety, and the embodiment of the present application adopts the following technical solutions:
an aspect of an embodiment of the present application provides a detection apparatus applied to an ionizer, the ionizer including an ion emitting head, the detection apparatus including:
a light emitting component coupled to the ion emission head and having a light emission intensity that is positively or negatively correlated to a voltage across the ion emission head;
the light intensity sensing unit is used for sensing the luminous intensity of the luminous component in a non-contact manner;
and the controller is connected with the light intensity sensing unit and is configured to determine the voltage at two ends of the ion emission head based on the sensing result of the light intensity sensing unit.
In some embodiments, the detecting device further includes an induction component, the induction component is grounded through the light emitting component, and the induction component is configured to induce the intensity of the electrostatic field formed by the ion emitting head and change the voltage across the light emitting component to adjust the light emitting intensity of the light emitting component.
In some embodiments, the sensing component comprises a sensing electrode having a first fixed positional relationship with the ion emitting head, the sensing electrode receiving electrons in an electrostatic field formed by the ion emitting head and varying a voltage applied across the light emitting component.
In some embodiments, the detection apparatus further includes a voltage dividing resistor, wherein the positive electrode of the light emitting component is connected to the negative electrode of the ion emitting head through the voltage dividing resistor, and the negative electrode of the light emitting component is grounded.
In some embodiments, the light emitting component comprises a neon bulb having a luminous intensity positively correlated to a voltage across the ion emitting head.
In some embodiments, the light intensity sensing unit includes:
a photosensor having a second fixed positional relationship with the light emitting member, the photosensor being for sensing the luminous intensity of the light emitting member, and a first property of the photosensor varying with a variation in the luminous intensity of the light emitting member;
a measurement circuit for measuring a first property of the light sensitive element;
accordingly, the controller is configured to determine a voltage across the ion emission head based on the measurement of the measurement circuit.
In some embodiments, the light sensitive element is a light sensitive resistor, the measurement circuit is configured to measure a resistance of the light sensitive resistor, and the controller is configured to determine the voltage across the ion emission head based on the resistance of the light sensitive resistor.
In some embodiments, a correspondence table is stored in the controller, the correspondence table containing a correspondence between the resistance value of the photo-resistor and the voltage across the ion emitter, the controller being configured to determine the voltage across the ion emitter head based on the correspondence table.
Another aspect of the embodiments of the present application provides an ionizer including an ion emitting head and a detecting device as described above.
Yet another aspect of embodiments of the present application provides an air purifier including an ionizer as described above.
The detection device of this application embodiment has realized electrical isolation between light intensity induction element and luminous component, and the high voltage direct action that can avoid the ion emission head can enough avoid light intensity induction element and controller to damage under the effect of high voltage, can also avoid the high voltage to pass through the controller and apply in the human body for this detection device has higher security.
Drawings
Fig. 1 is a block diagram of an ionizer according to an embodiment of the present application;
FIG. 2 is a schematic diagram of an embodiment of a detection device according to an embodiment of the present application;
FIG. 3 is a schematic diagram of another embodiment of a detection device according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an air purifier according to an embodiment of the present application.
Description of reference numerals:
100-a detection device; 111-a light emitting component; 112-a sensing electrode; 113-voltage dividing resistance; 120-light intensity sensing unit; 121-a photo-resistor; 122-a measurement circuit; 130-a controller;
200-an ion emission head;
300-a power supply circuit;
400-body; 410-display unit.
Detailed Description
For those skilled in the art to better understand the technical solutions of the embodiments of the present application, the present application will be described in detail below with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, the present embodiment provides a detection apparatus applied to an ionizer including an ion emitting head 200. Optionally, the ionizer may further include a power supply circuit 300, wherein the power supply circuit 300 is configured to receive the ac power or the dc power provided by the power supply, convert the ac power or the dc power provided by the power supply into a high voltage dc power, and provide the high voltage dc power to the ion emitter head 200. The ion emitter 200 is used for receiving the high voltage direct current provided by the power supply circuit 300 and rapidly releasing electrons to the ambient air, so that the ambient air near the ion emitter 200 is charged to form negative ion air.
The detecting apparatus 100 of the embodiment of the present application includes a light emitting part 111, a light intensity sensing unit 120, and a controller 130. Wherein the light emitting component 111 is coupled to the ion emitter head 200, and the intensity of the light emitted by the light emitting component 111 is positively or negatively correlated to the voltage across the ion emitter head 200. Alternatively, the light emitting component 111 and the ion emission head 200 may be coupled in a direct contact manner or in a non-contact manner, as long as the voltage applied across the ion emission head 200 can affect the light intensity of the light emitting component 111.
The light intensity sensing unit 120 is used for sensing the light intensity of the light emitting part 111 in a non-contact manner. Optionally, the light intensity sensing unit 120 may directly detect the light emitting intensity of the light emitting component 111, or may influence certain attribute information of itself through the light emitting intensity of the light emitting component 111.
The controller 130 is connected to the light intensity sensing unit 120, and the controller 130 is configured to determine the voltage across the ion emitter 200 based on the sensing result of the light intensity sensing unit 120. Alternatively, the controller 130 may be a control component dedicated to the detection apparatus 100, and may also be a control component of, for example, an ionizer, or an electronic device to which the ionizer is applied.
Adopt detection device 100 of above-mentioned structure, realized electrical isolation between light intensity induction element 120 and luminous component 111, can avoid the high voltage direct action of ion emitter head 200 to light intensity induction element 120 and controller 130, can enough avoid light intensity induction element 120 and controller 130 to damage under the effect of high voltage, can also avoid the high voltage to pass through controller 130 and apply in the human body for this detection device 100 has higher security.
In some embodiments, the detecting apparatus 100 may further include an induction component, the induction component is grounded through the light emitting component 111, and the induction component is configured to induce the intensity of the electrostatic field formed by the ion emitting head 200 and change the voltage across the light emitting component 111 to adjust the light emitting intensity of the light emitting component 111. The ion emitting head 200 releases electrons into the ambient air rapidly, an electrostatic field is formed near the ion emitting head 200, and the voltage across the ion emitting head 200 directly affects the intensity of the electrostatic field. The strength of the electrostatic field is sensed by the sensing component, so that the sensing component is not directly contacted with the ion emitting head 200, the purpose of secondary isolation can be realized, and the safety of the detection device 100 is further improved.
In some embodiments, as shown in fig. 2, the sensing component may include a sensing electrode 112, the sensing electrode 112 has a first fixed position relationship with the ion emitting head 200, and the sensing electrode 112 receives electrons in the electrostatic field formed by the ion emitting head 200 and changes the voltage applied across the light emitting component 111. One end of the light emitting part 111 is connected to the sensing electrode 112, and the other end of the light emitting part 111 is grounded. If the intensity of the electrostatic field is strong, more electrons are received by the sensing electrode 112, resulting in a larger potential difference between the two ends of the light emitting part 111, and if the intensity of the electrostatic field is weak, less electrons are received by the sensing electrode 112, resulting in a smaller potential difference between the two ends of the light emitting part 111, which may further affect the luminous intensity of the light emitting part 111. The sensing electrode 112 has a simple structure and is easy to implement.
Alternatively, the sensing electrode 112 may be fixedly disposed at a first distance from the ion emitter head 200, the sensing electrode 112 may face the ion emitter head 200, or the sensing electrode 112 may face an electrostatic field that the ion emitter head 200 can form to receive electrons in the electrostatic field. Taking an example of an ion generator applied to an air purifier, the ion emitter 200 may be exposed outside the housing of the air purifier, and the sensing electrode 112 may be disposed outside the housing of the air purifier or inside the housing as long as there is no obvious electrostatic isolation component between the two.
In some embodiments, as shown in fig. 3, the detecting apparatus 100 may further include a voltage dividing resistor 113, wherein the anode of the light emitting component 111 is connected to the cathode of the ion emitting head 200 through the voltage dividing resistor 113, and the cathode of the light emitting component 111 is grounded. The resistance of the voltage dividing resistor 113 may be set to be large to prevent the high voltage across the ion emitter head 200 from being directly applied to the light emitting part 111. When the voltage across the ion emitter head 200 changes, the voltage applied across the light emitting member 111 also changes, which in turn causes a change in the light emission intensity of the light emitting member 111. Thus, the light emitting component 111 is directly connected to the circuit where the ion emitting head 200 is located through the voltage dividing resistor 113, which is beneficial to simplifying the circuit structure and reducing the production cost.
It should be noted that, although the light emitting part 111 and the ion emitting head 200 are coupled in two ways, i.e., the sensing electrode 112 and the voltage dividing resistor 113, respectively, in the above embodiments, it should not be understood that the light emitting part 111 and the ion emitting head 200 are only coupled to each other in the above way. In particular implementations, the light emitting component 111 may be coupled to the ion emission head 200 in a variety of ways.
In some embodiments, the light emitting component 111 comprises a neon bulb having a light intensity that is positively correlated to the voltage across the ion emitting head 200. The neon bulb is applicable to a large voltage range and is not easy to damage, and light rays formed by the neon bulb have strong penetrating power and are not easy to weaken, so that light intensity sensing is facilitated. Of course, in practical implementation, the light emitting component 111 is not limited to neon bulbs, and may include other light sources with light intensity capable of varying with voltage.
In some embodiments, the light intensity sensing unit 120 may include a photosensor and a measurement circuit 122. The light sensitive element has a second fixed position relationship with the light emitting part 111, the light sensitive element is used for sensing the luminous intensity of the light emitting part 111, and the first property of the light sensitive element is changed along with the luminous intensity change of the light emitting part 111. The measurement circuit 122 is connected to the light sensitive element for measuring a first property of the light sensitive element. The controller 130 is coupled to the measurement circuit 122, and the controller 130 is configured to determine a voltage across the ion emitter head 200 based on measurements made by the measurement circuit 122. In particular implementations, the photosensitive source, the measurement circuit 122, and the controller 130 can be disposed on the same circuit board. Of course, a split configuration may also be employed.
In an alternative embodiment, the photosensitive element is a photo-resistor 121, the measuring circuit 122 is configured to measure a resistance of the photo-resistor 121, and the controller 130 is configured to determine the voltage across the ion emitter head 200 based on the resistance of the photo-resistor 121. The measuring circuit 122 may detect the resistance of the photo resistor 121 based on various principles such as voltammetry, resonance method, ohm method, dc bridge method, etc., and the structure and principle of the measuring circuit 122 are not limited herein as long as the resistance of the photo resistor 121 can be detected. The photoresistor 121 is simple in structure and low in cost, and when the photoresistor 121 is adopted, the measuring circuit 122 is easy to achieve, and the detection result is accurate.
Optionally, a corresponding relation table is stored in the controller 130, the corresponding relation table includes a corresponding relation between the resistance value of the photoresistor 121 and the voltage at the two ends of the ion emitter, and the controller 130 is configured to determine the voltage at the two ends of the ion emitter 200 based on the corresponding relation table. The voltage across the ion emitter head 200 is determined by presetting the correspondence table, which is beneficial to simplifying the control logic of the controller 130 and reducing the requirement for the data processing capability of the controller 130. Certainly, in specific implementation, the controller 130 may also preset a specific algorithm, and when the resistance value of the photo resistor 121 is obtained, the controller 130 may also calculate the voltage across the ion emitter head 200 based on the specific algorithm, so as to improve the accuracy of the detection result.
In another alternative embodiment, the photosensitive element may also comprise a photodiode, and the photodiode can generate electrons upon receiving photons, and can generate photocurrent. The measurement circuit 122 may be configured to detect a value of photocurrent developed by the photodiode, and the controller 130 may be configured to determine a voltage across the ion emission head 200 based on the value of photocurrent.
In yet another alternative embodiment, the photosensitive element may further include a phototransistor, and the current output from the collector of the phototransistor changes when the illumination intensity changes. The measurement circuit 122 may be configured to detect a value of photocurrent generated by the phototransistor, and the controller 130 may be configured to determine a voltage across the ion emitter head 200 based on the value of the photocurrent. The phototriode has a current method function, so that the sensitivity of the phototriode is high, and the detection precision can be obviously improved by adopting the phototriode.
It should be noted that, the above embodiments are only for applying force to the photosensitive element, and it should not be understood that the photosensitive element is limited to use of the photo resistor 121, the photo diode or the photo transistor, and other electronic elements capable of sensing light intensity may also be used, and details are not repeated here.
As shown in fig. 1, the present embodiment further provides an ionizer, which may include an ion emitting head 200, a power supply circuit 300, and the detecting device 100 according to any one of the above embodiments. The power supply circuit 300 is used for receiving the ac power or the dc power provided by the power supply, converting the ac power or the dc power provided by the power supply into a high voltage dc power, and providing the high voltage dc power to the ion emitter 200. The detection device 100 is used to detect the voltage across the ion emitter head 200. On the basis of detecting the voltages at the two ends of the ion emitting head 200, the output voltage of the power supply circuit 300 can be controlled based on the voltages at the two ends of the ion emitting head 200, so that the purpose of accurately controlling the voltages at the two ends of the ion emitting head 200 is achieved, and harmful derivatives are avoided.
The ionizer using the detecting device 100 also has the above advantages because the light intensity sensing unit 120 and the light emitting component 111 of the detecting device 100 can be electrically isolated and have high safety.
Referring to fig. 4, an embodiment of the present application also provides an air purifier including a body 400 and an ionizer as described above. An ion generator may be provided at one end of the body 400, and the ion emitting head 200 of the ion generator may include a plurality of ion discharging ends for discharging electrons to enable uniform discharge of electrons into ambient air. The safety of the air purifier can be obviously improved by adopting the ion generator.
Optionally, when the air purifier has the display unit 410, the controller 130 may further control the display unit 410 to output display content based on the voltage across the ion emitter head 200, so as to display the voltage across the ion emitter head 200. For example, whether the voltage across the ion emitting head 200 is normal or within a target range is displayed to enable a user to know whether the ionizer is operating normally.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.

Claims (10)

1. A detecting device, applied to an ionizer including an ion emitting head, comprising:
a light emitting component coupled to the ion emission head and having a light emission intensity that is positively or negatively correlated to a voltage across the ion emission head;
the light intensity sensing unit is used for sensing the luminous intensity of the luminous component in a non-contact manner;
and the controller is connected with the light intensity sensing unit and is configured to determine the voltage at two ends of the ion emission head based on the sensing result of the light intensity sensing unit.
2. The detecting device according to claim 1, further comprising an inductive component, the inductive component is grounded through the light emitting component, and the inductive component is configured to sense the intensity of the electrostatic field formed by the ion emitting head and change the voltage across the light emitting component to adjust the light emitting intensity of the light emitting component.
3. The detecting device according to claim 2, wherein the sensing member includes a sensing electrode having a first fixed positional relationship with the ion emitting head, the sensing electrode receiving electrons in the electrostatic field formed by the ion emitting head and varying the voltage applied across the light emitting member.
4. The detection apparatus according to claim 1, further comprising a voltage dividing resistor, wherein the positive electrode of the light emitting member is connected to the negative electrode of the ion emitting head through the voltage dividing resistor, and the negative electrode of the light emitting member is grounded.
5. The detecting device according to claim 1, wherein said light emitting member comprises a neon bulb, and the light emitting intensity of said neon bulb is positively correlated with the voltage across said ion emitting head.
6. The detecting device according to claim 1, wherein the light intensity sensing unit comprises:
a photosensor having a second fixed positional relationship with the light emitting member, the photosensor being for sensing the luminous intensity of the light emitting member, and a first property of the photosensor varying with a variation in the luminous intensity of the light emitting member;
a measurement circuit for measuring a first property of the light sensitive element;
accordingly, the controller is configured to determine a voltage across the ion emission head based on the measurement of the measurement circuit.
7. The detecting device according to claim 6, wherein the photosensitive element is a photosensitive resistor, the measuring circuit is configured to measure a resistance of the photosensitive resistor, and the controller is configured to determine the voltage across the ion emitting head based on the resistance of the photosensitive resistor.
8. The detecting device according to claim 7, wherein a correspondence table is stored in the controller, the correspondence table includes a correspondence between a resistance value of the photo resistor and a voltage across the ion emitter, and the controller is configured to determine the voltage across the ion emitter based on the correspondence table.
9. An ionizer comprising an ion emitting head and a detecting device according to any one of claims 1 to 8.
10. An air cleaner comprising the ionizer of claim 9.
CN202111492316.3A 2021-12-08 2021-12-08 Detection device, ion generator and air purifier Pending CN114184825A (en)

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW379146B (en) * 1997-01-29 2000-01-11 Sanyo Electric Co Air cleaning apparatus
CN2919269Y (en) * 2006-03-08 2007-07-04 沈阳瀚正科技有限公司 Power line complete isolating voltage sensor
CN201611874U (en) * 2010-01-13 2010-10-20 淮南润成科技有限公司 High-voltage input photoelectric coupling circuit
CN102752893A (en) * 2012-07-06 2012-10-24 上海科润光电技术有限公司 Electroluminescent display device for high-voltage measurement
CN202631696U (en) * 2012-06-19 2012-12-26 浙江九达环保设备有限公司 Automatic alarm system for high-voltage electric field of high-voltage electrostatic dust removal energy-saving controller
CN203849336U (en) * 2014-04-03 2014-09-24 成都玺汇科技有限公司 Detection circuit of electrostatic dust collection unit
CN104111227A (en) * 2013-06-21 2014-10-22 芜湖美的厨卫电器制造有限公司 Detection apparatus and detection method for water quality in inner container of electric water heater
CN105675961A (en) * 2016-02-19 2016-06-15 广州市诚臻电子科技有限公司 Voltage testing device and system capable of bearing high electromagnetic radiation field, and application
CN205539147U (en) * 2016-04-22 2016-08-31 苏州翰霖汽车科技有限公司 Anion generator's discharge current detection circuitry
CN207457454U (en) * 2017-11-30 2018-06-05 Tcl王牌电器(惠州)有限公司 Ion blower failure detection circuit and detector
CN112162140A (en) * 2020-09-21 2021-01-01 珠海格力电器股份有限公司 Isolated high-voltage detection circuit and air purification equipment

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW379146B (en) * 1997-01-29 2000-01-11 Sanyo Electric Co Air cleaning apparatus
CN2919269Y (en) * 2006-03-08 2007-07-04 沈阳瀚正科技有限公司 Power line complete isolating voltage sensor
CN201611874U (en) * 2010-01-13 2010-10-20 淮南润成科技有限公司 High-voltage input photoelectric coupling circuit
CN202631696U (en) * 2012-06-19 2012-12-26 浙江九达环保设备有限公司 Automatic alarm system for high-voltage electric field of high-voltage electrostatic dust removal energy-saving controller
CN102752893A (en) * 2012-07-06 2012-10-24 上海科润光电技术有限公司 Electroluminescent display device for high-voltage measurement
CN104111227A (en) * 2013-06-21 2014-10-22 芜湖美的厨卫电器制造有限公司 Detection apparatus and detection method for water quality in inner container of electric water heater
CN203849336U (en) * 2014-04-03 2014-09-24 成都玺汇科技有限公司 Detection circuit of electrostatic dust collection unit
CN105675961A (en) * 2016-02-19 2016-06-15 广州市诚臻电子科技有限公司 Voltage testing device and system capable of bearing high electromagnetic radiation field, and application
CN205539147U (en) * 2016-04-22 2016-08-31 苏州翰霖汽车科技有限公司 Anion generator's discharge current detection circuitry
CN207457454U (en) * 2017-11-30 2018-06-05 Tcl王牌电器(惠州)有限公司 Ion blower failure detection circuit and detector
CN112162140A (en) * 2020-09-21 2021-01-01 珠海格力电器股份有限公司 Isolated high-voltage detection circuit and air purification equipment

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
姚仲鹏: "《空气净化原理、设计与应用》", 30 September 2014, 中国科学技术出版社 *
崔体人: "《家用电器修理大全(第2版)》", 30 April 1991, 浙江科学技术出版社 *

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