CN102563813B - Air conditioning sterilization device and control method thereof - Google Patents

Abstract

The invention relates to an air conditioner sterilization device and a control method thereof. The air conditioner sterilization device includes a bracket, a synchronous motor, an LED lamp holder, more than two LED lamps and a filter screen, wherein the synchronous motor is installed on the bracket, and the rotating shaft of the synchronous motor Support the LED lamp holder and drive the LED lamp holder to rotate. The LED lamp is installed on the LED lamp holder. The filter screen is installed on the bracket and located above the LED lamp holder. The wavelength of the LED lamp is in the range of 200nm-280nm, which is in the UVC band Deep UV LED point light source. Its control method has three control steps. Its advantages are: it can efficiently kill all kinds of microorganisms, effectively clean the indoor air, and fundamentally remove the infectious sources of diseases such as influenza that are easily transmitted in the air, so that it can efficiently kill the air duct openings of air-conditioning cabinets. Bacteria to purify the air.

Description

Air conditioner sterilization device and control method thereof

technical field

The present invention relates to an air conditioner sterilization device and its control method, which is the application of LED deep ultraviolet light source in the sterilization of air conditioner air duct system.

Background technique

The air conditioner is a device whose control goal is to adjust the air quality. The key control parameters are refrigeration, heating capacity, air humidity, etc. In addition, in recent years, many air purification and sterilization devices with different mechanisms of action have appeared on the air conditioning system. , such as: electronic dust collectors, photocatalysts, formaldehyde killers, ozone generators, etc., they cannot efficiently kill various microorganisms, cannot effectively clean indoor air, and cannot fundamentally remove influenza, etc. Spreading source of disease infection.

So far, ultraviolet lamps are widely used in hospitals, restaurants and some household disinfection cupboards for sterilization. With the development of our country's semiconductor technology, the deep ultraviolet UVC light source technology with a wavelength of 200-280nm has developed rapidly. UVC light source is widely used in medical and health, sterilization and environmental monitoring because of its strong destructive power to microorganisms. and other fields.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art and provide a kind of can carry out efficient killing to various microorganisms, can effectively clean indoor air, can fundamentally remove the infectious source of disease that is very easy to spread in the air such as influenza, The air conditioner sterilization device and the control method thereof are used to efficiently sterilize the air duct opening of the air conditioner cabinet to achieve the purpose of air purification.

The technical solution of the air-conditioning sterilization device of the present invention is: 1. An air-conditioning sterilization device, which is characterized in that it includes a bracket, a synchronous motor, an LED lamp holder, more than two LED lamps and a filter screen, wherein the synchronous motor is installed on the bracket Above, the rotating shaft of the synchronous motor supports the LED lamp holder and drives the LED lamp holder to rotate. The LED lamp is installed on the LED lamp holder. The filter screen is installed on the bracket and located above the LED lamp holder. The wavelength of the LED lamp In the range of 200nm-280nm, it is a deep ultraviolet LED point light source in the UVC band.

The support includes a circular frame with more than three fixing ears and a cross-shaped support frame, and the cross-shaped support frame is fixed in the circular frame.

The LED lamp holder is provided with bell-shaped pits for installing LED lamps. The bell-shaped pits are in the shape of a condenser, and the openings of the bell-shaped pits are facing the filter screen. Just the same number.

A stepping motor and two protective plates driven by the stepping motor are installed in the center of the LED lamp holder; Holes, the size and position of the circular holes are adapted to the opening size and position of the bell-shaped pits, and the number of the circular holes is the same as the number of the bell-shaped pits.

The stepper motor is a double-shaft extension motor, the two-side output shafts of the stepper motor are connected to the reversing gear box, and the output end of the reversing gear box is connected to the protective plate and can drive the protective plate to slide along the surface of the LED lamp holder.

A control method for an air-conditioning sterilization device, the steps of which are as follows:

Step 1: When the start-up command of the air conditioner is issued, the indoor fan starts with a delay of 2-4 minutes, the stepping motor rotates forward to open the protective plate, starts the synchronous motor to rotate the LED lamp holder, starts the LED lamp and runs for 2-4 minutes, and turns off the LED The light and the stepper motor reverse to close the protective plate, the synchronous motor stops working, and the fan is started to run the air-conditioning function normally;

Step 2: When the air conditioner shutdown command is issued, the stepping motor rotates forward to open the protective plate, starts the synchronous motor to rotate the LED lamp holder, starts the LED light and runs for 5-10 minutes, turns off the LED light, and the stepping motor reverses to close the protective plate , The synchronous motor stops working;

Step 3: After the mandatory sterilization command is issued, check whether the air-conditioning fan is turned on. "Yes" means that the current sterilization conditions are not met, and the sterilization system does not respond; "No" means that the stepping motor rotates forward to open the protective plate and start The synchronous motor rotates the LED lamp holder, starts the LED lamp and runs for 10-20 minutes, turns off the LED lamp, reverses the stepper motor to close the protective plate, and the synchronous motor stops working.

    Compared with the prior art, the present invention has the following advantages: it can efficiently kill various microorganisms, effectively clean the indoor air, and fundamentally remove infectious sources of diseases such as influenza that are easily transmitted in the air, making it effective for The air duct opening of the air-conditioning cabinet is sterilized efficiently to purify the air.

Description of drawings

Fig. 1 is the structural representation of air-conditioning sterilization device of the present invention;

Fig. 2 is the top view that removes filter screen among Fig. 1;

Fig. 3 is the flowchart of step 1 of the control method of the air-conditioning sterilization device of the present invention;

Fig. 4 is the flowchart of step 2 of the control method of the air-conditioning sterilization device of the present invention;

Fig. 5 is a flow chart of Step 3 of the control method of the air-conditioning sterilization device of the present invention.

Detailed ways

The present invention will be described in further detail below in conjunction with accompanying drawing and embodiment:

As shown in Fig. 1, 2, a kind of air conditioner sterilization device, the feature of the present invention is to comprise support 1, synchronous motor 2, LED lamp holder 3, more than two LED lamps 4 and filter screen 7, in the present embodiment has Four LED lamps 4; wherein the synchronous motor 2 is installed on the bracket 1, the rotating shaft of the synchronous motor 2 supports the LED lamp holder 3 and drives the LED lamp holder 3 to rotate, and the four LED lamps 4 are respectively installed on the LED lamp On the seat 3, the filter screen 7 is installed on the bracket 1 and located above the LED lamp holder 3. The wavelength of the LED lamp 4 is in the range of 200nm-280nm, which is a deep ultraviolet LED point light source in the UVC band.

The support 1 includes a circular frame 11 with more than three fixed ears 111 and a cross-shaped support frame 12. In this embodiment, the circular frame 11 has four fixed ears 111, and the cross-shaped support frame 12 is fixed on a circular frame. inside the frame 11. Taking a common air conditioner cabinet as an example, the four fixing ears 111 on the bracket 1 can be fixed to the air inlet of the air conditioner by four screws during installation. When in use, the airflow all flows through the four LED lights 4 and then enters the air conditioner air duct system.

In this embodiment, the LED lamp holder 3 is provided with a bell-shaped pit 31 for installing the LED lamp 4. The bell-shaped pit 31 is in the shape of a condenser, and the opening of the bell-shaped pit 31 faces the filter screen. 7, thereby ensuring that the light emitted by the LED lamp 4 can completely cover the filter screen 7, and the number of bell-shaped pits 31 is the same as that of the LED lamp 4 .

In this embodiment, a stepping motor 6 and two protective plates 5 driven by the stepping motor 6 are installed in the center of the LED lamp holder 3; the protective plates 5 are installed on the LED lamp holder 3 and can slide , have more than two circular holes 51 on the protective plate 5, the size and position of the circular holes 51 are adapted to the opening size and the position of the bell-shaped pit 31, and the number of the circular holes 51 is the same as that of the bell-shaped pit. 31 is the same number. This can ensure that light can pass through the LED lamp 4 when it is working, and close the opening of the bell-shaped pit 31 when it is not working, so as to protect the LED lamp 4 .

In this embodiment, the stepper motor 6 is a double-shaft extension motor, the double-side output shafts of the stepper motor 6 are connected to the reversing gearbox 61, and the output end of the reversing gearbox 61 is connected to the protective plate 5 and can The protective plate 5 is driven to slide along the surface of the LED lamp holder 3 . When in use, the direction-changing gear box 61 converts the rotational motion of the motor shaft into the telescopic motion of the output shaft of the gear box, and drives the protective plate 5 to slide along the surface of the LED lamp holder 3, so that when the sterilization function is activated, the protective plate 5 The round hole 51 is directly opposite to the bell-shaped pit 31 on the LED lamp holder 3, otherwise they are staggered to protect the LED4 lamp.

When in use, when the airflow flows through the filter screen 7, most of the particles and microorganisms are bound by the filter screen and cannot enter the air duct system. When the sterilization system is started, the protective plate 5 is opened, and the synchronous motor 2 drives the LED lamp holder 3 to rotate Plane scanning is performed to expand the radiation area of the light source. The LED lamp 4 starts to emit deep ultraviolet light, and the light radiates to the filter screen 7 to efficiently kill bacteria, viruses and other microorganisms bound in the filter screen 7 . After the sterilization process is finished, the LED lamp 4 stops working, the protective plate 5 is closed, and the lamp holder 3 stops rotating. The entire sterilization process can work according to the set time when the start-up command, shutdown command and forced sterilization command are issued.

The control method of the device is as follows:

Step 1: As shown in Figure 3, when the start-up command of the air conditioner is issued, the indoor fan starts with a delay of 2-4 minutes, the stepping motor 6 rotates forward to open the protective plate 5, starts the synchronous motor 2 to rotate the LED lamp holder 3, and starts the LED Light 4 and run 2 minutes, turn off LED light 4, stepping motor 6 reverses and close protective plate 5, synchronous motor 2 stops working, starts blower fan normal operation air-conditioning function.

Step 2: As shown in Figure 4, when the shutdown command of the air conditioner is issued, the stepper motor 6 rotates forward to open the protective plate 5, starts the synchronous motor 2 to rotate the LED lamp holder 3, starts the LED lamp 4 and runs for 5-10 minutes, and turns off LED lamp 4, stepper motor 6 counter-rotate and close protection plate 5, synchronous motor 2 stop working.

Step 3: As shown in Figure 5, when the mandatory sterilization command is issued, check whether the air-conditioning fan is turned on, "Yes" means that the current sterilization conditions are not met, and the sterilization system does not respond; Turn forward to open the protective plate 5, start the synchronous motor 2 to rotate the LED lamp holder 3, start the LED light 4 and run for 10-20 minutes, turn off the LED light 4, reverse the stepping motor 6 and close the protective plate 5, and stop the synchronous motor 2 .

Claims (2)

1. an air conditioning sterilization device, comprise support (1), synchronous motor (2), LED lamp socket (3), two above LED lamp (4) and filter screens (7), wherein said synchronous motor (2) is arranged on support (1), the rotating shaft support LED lamp socket (3) of described synchronous motor (2) also drives LED lamp socket (3) to rotate, described LED lamp (4) is arranged on LED lamp socket (3), described filter screen (7) is arranged on the top that LED lamp socket (3) were gone up and be positioned to support (1), the wavelength of LED lamp (4) is in 200nm-280nm scope, it is the deep ultraviolet LED spot light of UVC wave band, it is characterized in that: described LED lamp socket (3) is provided with the mitriform pit (31) of mounted LED lamp (4), it is hood-like that described mitriform pit (31) is optically focused, the opening of mitriform pit (31) is over against filter screen (7), the number of mitriform pit (31) is identical with LED lamp (4) number of elements, two protective plates (5) that stepper motor (6) are installed at the center of described LED lamp socket (3) and driven by stepper motor (6), it is upper also slidably that described protective plate (5) is arranged on LED lamp socket (3), on protective plate (5), have plural circular hole (51), openings of sizes and the position of the size and location of described circular hole (51) and mitriform pit (31) adapt, and the number of circular hole (51) is identical with the number of mitriform pit (31).

2. according to claim 1 air conditioning sterilization device, it is characterized in that described support (1) comprises that described cross bracing frame (12) is fixed in circular frame (11) with three above fixedly circular frame (11) and the cross bracing frames (12) of ear (111).

3. according to claim 1 air conditioning sterilization device, it is characterized in that described stepper motor (6) is motor for double-ended drive, the bilateral shaft of stepper motor (6) is connected with change gear case (61), and the output of change gear case (61) is connected with protective plate (5) and can drives protective plate (5) along LED lamp socket (3) surface sliding.

4. a control method for air conditioning sterilization device, described air conditioning sterilization device is that its step is as follows according to the air conditioning sterilization device described in any one in claim 1-3:

Step 1: after air-conditioning start-up command is assigned, indoor fan time delay 2-4 minute starts, and stepper motor (6) forward turns on protective plate (5), start that synchronous motor (2) makes LED lamp socket (3) rotation, starts LED lamp (4) and moves 2-4 minute, cuts out LED lamp (4), protective plate (5) is closed in stepper motor (6) reversion, synchronous motor (2) quits work, starts blower fan and normally moves air conditioning function;

Step 2: after air-conditioning shutdown command is assigned, stepper motor (6) forward turns on protective plate (5), start that synchronous motor (2) makes LED lamp socket (3) rotation, starts LED lamp (4) and moves 5-10 minute, cuts out LED lamp (4), protective plate (5) is closed in stepper motor (6) reversion, synchronous motor (2) quits work;

Step 3: whether after forcing sterilizing instruction issuing, detect air-conditioning draught fan and open, "Yes", disinfection system is not done any response if representing the current sterilising conditions that do not meet; "No" stepper motor (6) forward is turned on protective plate (5), is started that synchronous motor (2) makes LED lamp socket (3) rotation, starts LED lamp (4) and moves 10-20 minute, cuts out LED lamp (4), protective plate (5) is closed in stepper motor (6) reversion, synchronous motor (2) quits work.

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