CN108917097B - Low-power consumption standby circuit and air purifier - Google Patents

Low-power consumption standby circuit and air purifier Download PDF

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Publication number
CN108917097B
CN108917097B CN201810763301.8A CN201810763301A CN108917097B CN 108917097 B CN108917097 B CN 108917097B CN 201810763301 A CN201810763301 A CN 201810763301A CN 108917097 B CN108917097 B CN 108917097B
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China
Prior art keywords
air purifier
display screen
control board
power consumption
relay
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CN201810763301.8A
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Chinese (zh)
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CN108917097A (en
Inventor
张英龙
温燕斌
田丰全
孙德伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hisense Shandong Air Conditioning Co Ltd
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Hisense Shandong Air Conditioning Co Ltd
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Priority to CN201810763301.8A priority Critical patent/CN108917097B/en
Publication of CN108917097A publication Critical patent/CN108917097A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/89Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52Indication arrangements, e.g. displays
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/88Electrical aspects, e.g. circuits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/50Air quality properties
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/50Air quality properties
    • F24F2110/64Airborne particle content
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/50Air quality properties
    • F24F2110/65Concentration of specific substances or contaminants
    • F24F2110/66Volatile organic compounds [VOC]
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/50Air quality properties
    • F24F2110/65Concentration of specific substances or contaminants
    • F24F2110/70Carbon dioxide

Abstract

The invention relates to a low-power consumption standby circuit and an air purifier, wherein the low-power consumption standby circuit comprises a display screen control board, a main control board for controlling the work of the air purifier, a relay and a power supply for supplying power to the display screen control board; an output control port of the display screen control board is connected with a coil of the relay and used for controlling the relay to be electrified when the air purifier receives the standby signal; and a normally closed contact of the relay is connected between a power supply live wire and a power supply input end of the main control panel. The air purifier is used for solving the problem that the standby power consumption of the air purifier is large in the prior art and reducing the standby power consumption.

Description

Low-power consumption standby circuit and air purifier
Technical Field
The invention belongs to the technical field of air purifiers, and particularly relates to a low-power-consumption standby circuit and an air purifier.
Background
An air purifier has been widely used in daily life as a device for improving indoor air quality, and as the air quality is increasingly deteriorated, people have an increasing demand for the air purifier, which is generally turned on for a long time in a room to maintain the indoor air quality, and even if the use of the air purifier is turned off, since a user does not unplug the air purifier many times, that is, the air purifier is in a standby state for a long time, standby power consumption is large, and the standby power consumption of the air purifier is less than 2W as specified in the national standard. Referring to fig. 1, a display screen control board 20 and a plurality of peripheral environment sensors (e.g., PM2.5 detection sensor 31, CO) for detecting environmental conditions in the related art air purifier2Detection sensor 32 and TVOC detection sensor 33) are bothThe main control board 10 supplies power, and in order to reduce power consumption, the main control board 10 controls and disconnects a 15V power supply of the fan and a 5V power supply of a plurality of peripheral environment sensors during standby, but standby power consumption also hardly reaches the national standard.
Disclosure of Invention
The invention provides a low-power-consumption standby circuit and an air purifier, which are used for solving the problem of high standby power consumption of the air purifier in the prior art and reducing the standby power consumption.
In order to solve the technical problems, the invention provides the following technical scheme for solving the problems:
a low-power consumption standby circuit comprises a display screen control board and a main control board used for controlling the work of an air purifier; the display screen control panel is characterized by further comprising a relay and a power supply for supplying power to the display screen control panel; an output control port of the display screen control board is connected with a coil of the relay and used for controlling the relay to be electrified when the air purifier receives a standby signal; and the normally closed contact of the relay is connected between the power live wire and the power input end of the main control panel.
Further, in order to control the standby of the display screen when the main control panel is disconnected, the power supply is a 12V direct current power supply; and the display screen control board also comprises a voltage conversion circuit which is used for converting the 12V voltage into the 5V voltage.
Further, the voltage conversion circuit is a 7805 chip.
Further, the low-power consumption standby circuit further comprises an air quality detection unit and an air quality calculation processing unit, wherein the air quality detection unit and the air quality calculation processing unit are used for detecting the air environment quality, the air quality detection unit and the air quality calculation processing unit are electrically connected with the main control board, and the air quality detection unit comprises a PM2.5 detection sensor and a CO of the main control board2A detection sensor and a TVOC detection sensor.
Further, in order to still perform air quality detection when the power supply of the main control board is cut off, the low-power standby circuit further comprises an air quality detection unit and an air quality meter for detecting the environment qualityThe air quality detection unit and the air quality calculation processing unit are electrically connected with the display screen control panel, and the air quality detection unit comprises a PM2.5 detection sensor of the main control panel, a CO2A detection sensor and a TVOC detection sensor.
The invention also relates to an air purifier which comprises the low-power consumption standby circuit.
Compared with the prior art, the low-power consumption standby circuit and the air purifier provided by the invention have the following advantages and beneficial effects: when the standby signal is received, the display screen control panel outputs a control signal to control the relay coil to be powered on, the normally closed switch is switched off, all devices on the main control panel are powered off, and the display screen control panel is not powered off, so that the standby power consumption is greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments of the present invention or the prior art will be briefly described below, and it is obvious that the drawings described below are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a diagram of a display screen control board and a main control board in an air purifier in the prior art;
fig. 2 is a relationship diagram of a display screen control board and a main control board in the air purifier of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in the figure1, the display screen control panel 20 of the air purifier in the prior art is powered by the main control panel 10, the air quality detection unit 30 is used for detecting the environmental quality, and sending the collected environmental quality information to the air quality calculation processing unit 11 located on the main control panel 10, and the current air quality is displayed on the display screen (not shown) connected with the display screen control panel 20 after being analyzed by the air quality calculation processing unit 11. For example, the air quality detection unit 30 may include a PM2.5 detection sensor 31, carbon dioxide (CO)2) A detection sensor 32 and a TVOC (Total Volatile Organic Compounds) detection sensor 33, although other sensors for detecting other pollutants in the air, such as a dust particle concentration sensor, may also be included.
In the present embodiment, in order to reduce the standby power consumption of the air purifier to 2W or less of the national standard, the present embodiment relates to a low power consumption standby circuit, which includes a display screen control board 20, a main control board 10 for controlling the operation of the air purifier, a relay 50 and a power supply 40 for supplying power to the display screen control board 20; an output control port of the display screen control board 20 is connected with a coil of the relay 50, and is used for controlling the relay 50 to be powered on by the display screen control board 20 when the air purifier receives a standby signal; the normally closed contact of the relay 50 is connected between the live power line (not shown) and the power input of the main control board 10.
Specifically, as shown in fig. 2, in the present embodiment, the display panel control board 20 is not powered by the main control board 10 but is powered by the power supply 40 alone, the power supply 40 selects a 12V dc power supply, in the present embodiment, the 12V power supply of the power supply 40 is used by the backlight circuit in the display panel control board 20, and the drive board in the display panel control board 20 uses a 5V voltage and supplies the 5V voltage to the display panel through the drive board and the panel line, and therefore, a voltage conversion circuit (not shown) for converting 12V to 5V is further provided in the display panel control board 20, for example, a 7805 chip is used. When the air purifier needs to be in a standby state, the display screen control board 20 outputs a control signal (such as a high level) to the relay 50 by pressing the standby button, at the moment, the coil of the relay 50 is electrified, the normally closed switch is disconnected, the input end of a power live wire is disconnected with the power input end of the main control board 10, so that the main control board 10 is powered off, at the moment, all electric devices on the main control board 10 are powered off, the standby power consumption of the air purifier can be reduced to even less than 1W, the standby power consumption is greatly reduced, and the electric energy is saved; when the computer is started, the computer is started by pressing a start button or by a touch key of the display screen, the display screen control board 20 outputs a control signal (for example, a low level) to the relay 50, at this time, the coil of the relay 50 is powered off, the normally closed switch is closed, the alternating current power supply is used for powering on the main control board 10 again through a power live wire, and at this time, for example, the PM2.5 detection sensor 31, the CO2 detection sensor 32 and the TVOC detection sensor 33 which are electrically connected with the main control board 10 need to be preheated again.
In order to also monitor indoor air quality when air purifier standby, perhaps the user can pass through APP remote monitoring indoor air quality when going out, with PM2.5 detection sensor 31 for example, CO2 detection sensor 32 and TVOC detection sensor 33 etc. by display screen control panel 20 power supply, like this, the sensor also can continuous work and send the air quality parameter of gathering to air quality calculation processing unit 11 when air purifier standby, thereby user's accessible APP looks over indoor air quality parameter, so that in time start air purifier, improve user experience.
The invention also relates to an air purifier, which comprises the low-power consumption standby circuit, and the power consumption is low during standby, wherein the specific structure of the low-power consumption standby circuit is shown in fig. 2 and corresponding description thereof, which is not repeated herein.
According to the low-power-consumption standby circuit and the air purifier, when the standby signal is received, the display screen control board 20 outputs the control signal to control the coil of the relay 50 to be electrified, the normally closed switch is switched off, all devices on the main control board 10 are powered off, the display screen control board 20 is not powered off, the main control board 10 needs to be powered on again when the air purifier is started every time, and the standby power consumption is greatly reduced; and with PM2.5 detection sensor 31, CO2 detection sensor 32 and TVOC detection sensor 33 by display screen control panel 20 power supply, can continue work when the standby, satisfy the user and look over the demand of indoor air quality through APP under the standby state, improve user experience.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (5)

1. A low power consumption standby circuit comprises a display screen control panel and a main control panel used for controlling the work of an air purifier; the system is characterized by further comprising a relay, a power supply for supplying power to the display screen control board, an air quality detection unit for detecting the air environment quality and an air quality calculation processing unit; an output control port of the display screen control board is connected with a coil of the relay and used for controlling the relay to be electrified when the air purifier receives a standby signal; the normally closed contact of the relay is connected between the power supply live wire and the power supply input end of the main control panel; the air quality detection unit and the air quality calculation processing unit are electrically connected with the display screen control panel.
2. The low power consumption standby circuit according to claim 1, wherein the power supply is a 12V dc power supply; and the display screen control board also comprises a voltage conversion circuit which is used for converting the 12V voltage into the 5V voltage.
3. The low power consumption standby circuit of claim 2, wherein said voltage conversion circuit is a 7805 chip.
4. The low power standby circuit of any one of claims 1-3, wherein said air quality detection unit comprises a PM2.5 detection sensor, CO2Detection sensor and TVOC detection sensorA sensor is provided.
5. An air purifier, characterized in that it comprises a low power consumption standby circuit according to any one of the preceding claims 1-4.
CN201810763301.8A 2018-07-12 2018-07-12 Low-power consumption standby circuit and air purifier Active CN108917097B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810763301.8A CN108917097B (en) 2018-07-12 2018-07-12 Low-power consumption standby circuit and air purifier

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Application Number Priority Date Filing Date Title
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CN108917097B true CN108917097B (en) 2020-11-06

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111256752A (en) * 2019-11-20 2020-06-09 杭州广安汽车电器有限公司 Portable air quality monitoring equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101729832A (en) * 2009-12-16 2010-06-09 广东朝野科技有限公司 Television standby method with low power consumption and standby auxiliary circuit
CN203323315U (en) * 2013-05-29 2013-12-04 深圳市中深装建设集团有限公司 Energy-saving control system based on office body induction air conditioner
CN203707489U (en) * 2014-02-24 2014-07-09 赵一泽 Intelligent energy-saving socket
CN104633878A (en) * 2015-02-02 2015-05-20 七台河市大航电子科技有限责任公司 Air purifier control system capable of automatically detecting purification effect and pollution type
EP3136006A1 (en) * 2015-08-31 2017-03-01 Lg Electronics Inc. Air conditioner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101729832A (en) * 2009-12-16 2010-06-09 广东朝野科技有限公司 Television standby method with low power consumption and standby auxiliary circuit
CN203323315U (en) * 2013-05-29 2013-12-04 深圳市中深装建设集团有限公司 Energy-saving control system based on office body induction air conditioner
CN203707489U (en) * 2014-02-24 2014-07-09 赵一泽 Intelligent energy-saving socket
CN104633878A (en) * 2015-02-02 2015-05-20 七台河市大航电子科技有限责任公司 Air purifier control system capable of automatically detecting purification effect and pollution type
EP3136006A1 (en) * 2015-08-31 2017-03-01 Lg Electronics Inc. Air conditioner

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Address after: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No.

Applicant after: Hisense (Shandong) Air-conditioning Co., Ltd.

Address before: 266100 Qingdao, Pingdu City, South Village, North Station, Hisense Road, No. 1, No.

Applicant before: Hisense (Shandong) Air-conditioning Co., Ltd.

Address after: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No.

Applicant after: Hisense (Shandong) Air-conditioning Co., Ltd.

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Applicant before: Hisense (Shandong) Air-conditioning Co., Ltd.

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