CN210699498U - Ultraviolet sterilization device for disinfection and purification device - Google Patents
Ultraviolet sterilization device for disinfection and purification device Download PDFInfo
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- CN210699498U CN210699498U CN201921325049.9U CN201921325049U CN210699498U CN 210699498 U CN210699498 U CN 210699498U CN 201921325049 U CN201921325049 U CN 201921325049U CN 210699498 U CN210699498 U CN 210699498U
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Abstract
The utility model relates to an ultraviolet sterilizing device for disinfection purifier, wherein the device includes power, frequency conversion fan, air quality sensor group, controller and ultraviolet pipe, frequency conversion fan and wind channel entry linkage, power module is connected with frequency conversion fan, controller and ultraviolet pipe respectively, the controller is connected with frequency conversion fan and air quality sensor group and ultraviolet pipe respectively, the ultraviolet pipe is located in the wind channel, the device is still including the rotational speed detection module who is used for detecting frequency conversion fan rotational speed, this rotational speed detection module is connected with the controller. Compared with the prior art, the utility model discloses with the ultraviolet tube design in the wind channel, the rotational speed information that can provide the frequency conversion fan simultaneously carries out power control to the ultraviolet tube to improve the bactericidal effect of ultraviolet tube.
Description
Technical Field
The utility model relates to a sterilizing equipment especially relates to an ultraviolet sterilizing equipment for disinfecting purifier.
Background
With the progress of living standards, people pay more attention to health, and air purifiers can relieve the incidence of respiratory diseases and increasingly enter families and public places.
However, since the conventional air cleaner generally filters solid dust such as PM2.5 and cannot kill bacteria, parasites, and the like in the air, it is eagerly desired by those skilled in the art to develop a disinfection and purification device capable of killing bacteria in the air.
In the field of disinfection, ultraviolet disinfection technology is a mature and inexpensive way, and most of the current ultraviolet light sources are mercury arc lamps (i.e., commonly known as ultraviolet lamps or mercury lamps). The mercury arc lamp is a transparent quartz tube which is packaged with mercury and provided with electrodes at two ends, when the filament is electrified and heated, mercury vapor in the tube is transited to an excited state by excitation, and ultraviolet light is emitted when the excited state returns to a ground state. Depending on the mercury vapor pressure inside the tube, the emitted ultraviolet light also has a different spectrum, which can be classified into 3 types.
1) Ultraviolet light emitted by a low-pressure mercury lamp at the mercury vapor pressure of 10-100 Pa is linear discrete spectrum, the main emission wavelength of the ultraviolet light is 254nm and 185nm, and the main emission wavelength of the ultraviolet light accounts for more than 95% of the total emission energy (in fact, the ultraviolet light is mainly in the 185nm linear spectrum in the tube, but quartz strongly absorbs the ultraviolet light, so that the ultraviolet light accounts for a small proportion outside the tube. )
The low-pressure mercury lamp has low power, generally only dozens of watts, and has extremely short emission wavelength, easy generation of ozone, air pollution and little use in photocuring. The service life of the low-pressure mercury lamp is 200-400 h.
2) Medium-pressure mercury lamps: it has been conventionally referred to as a high-pressure mercury lamp, and the mercury vapor pressure in this lamp was 105kPa (about 1 atm). Due to the phenomena of emission line increase and pressure broadening of mercury vapor at high-temperature discharge under high pressure, the wavelength range of the emission line of the medium-pressure mercury lamp is wide and overlapped, and the emission wavelength in an ultraviolet region is 365nm, 313nm and 303 nm. The service life of the medium-pressure mercury lamp is 1000-1500 h.
3) High-pressure mercury lamps: conventionally called as an ultra-high pressure mercury lamp, the mercury vapor pressure is 105-106 Pa, i.e. 1-10 atm. It can provide the strongest ultraviolet and visible light, its output power can be up to ten times that of ordinary medium-pressure mercury lamp, its electrode temp. can be up to 2000 deg.C and its lamp tube temp. can be up to 600 deg.C, so that it has need of cooling, and the power of lamp is related to cooling efficiency. The service life of the high-pressure mercury lamp is short, and is about 75-100 h. The emission spectrum of the high-pressure mercury lamp is overlapped more and is a continuous band spectrum.
For example, chinese patent CN109237660A discloses a disinfection device and an air purifier, relating to the field of air purification. The sterilizing device includes: the ultraviolet lamps emit ultraviolet rays in UVC wave bands, the main irradiation direction of the ultraviolet lamps is perpendicular to the direction of air flowing through the filter screen so as to irradiate and disinfect the air, and the ultraviolet lamps are arranged at intervals with the filter screen so that the ultraviolet rays in the UVC wave bands emitted by the ultraviolet lamps irradiate and disinfect the filter screen; and the plurality of reflector plates are arranged in one-to-one correspondence with the plurality of ultraviolet lamps, the ultraviolet lamps are arranged between the filter screen and the reflector plates, and the reflecting surfaces of the reflector plates are parallel to the main irradiation direction of the ultraviolet lamps, so that UVC wave band ultraviolet rays completely cover the filter screen. Therefore, the air before entering the filter screen is disinfected, and the filter and disinfection of the filter screen are realized, so that the air purifier can continuously provide clean air. However, the sterilizing device and the air purifier will only sterilize the filter net, resulting in low sterilizing efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide an ultraviolet sterilization device for a disinfection and purification device.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides an ultraviolet sterilizing device for disinfection purifier, includes power, frequency conversion fan, air quality sensor group, controller and ultraviolet pipe, frequency conversion fan and wind channel entry linkage, power module is connected with frequency conversion fan, controller and ultraviolet pipe respectively, the controller is connected with frequency conversion fan and air quality sensor group and ultraviolet pipe respectively, ultraviolet pipe is located in the wind channel, the device is still including the rotational speed detection module that is used for detecting frequency conversion fan rotational speed, and this rotational speed detection module is connected with the controller.
The power module comprises a mains supply input terminal, a first power supply module, a second power supply module and a third power supply module, wherein the input end of the mains supply input terminal is connected to mains supply input, the output end of the mains supply input terminal is connected with the input ends of the first power supply module, the second power supply module and the third power supply module respectively, the output end of the first power supply module is connected to the variable frequency fan, the output end of the second power supply module is connected to the controller, and the output end of the third power supply module is connected to the ultraviolet tube.
The rotating speed detection module is a first current detection module used for detecting the current value flowing through the variable frequency fan.
The rotating speed detection module is an encoder, and the encoder is connected with the variable-frequency fan.
The device also comprises an ultraviolet sensor for detecting the intensity of ultraviolet rays, and the ultraviolet sensor is arranged in the near ultraviolet tube in the air duct and is connected with the controller.
The device also includes a wireless data transceiver connected to the controller.
The wireless data transceiver is a 4G module.
The ultraviolet tube is a mercury arc lamp.
Compared with the prior art, the utility model discloses following beneficial effect has:
1) the ultraviolet tube is designed in the air duct, and meanwhile, the rotating speed information of the variable frequency fan can be provided to control the power of the ultraviolet tube, so that the sterilizing effect of the ultraviolet tube is improved.
2) The frequency conversion fan, the ultraviolet tube and the controller are independently powered, and mutual interference is avoided.
3) The rotation speed detection of the variable frequency fan is realized by adopting a current detection mode, the structure is simple, and the volume reduction is facilitated.
4) The independent encoder is configured for detecting the rotating speed, so that the detection accuracy can be improved, and the rotating speed distortion can not be obtained through current conversion due to aging of the variable frequency fan.
5) And the ultraviolet sensor is configured, so that the feedback control of the ultraviolet tube can be realized.
6) A wireless data transceiver is configured to remotely transmit and receive data.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the air duct arrangement of the present invention;
FIG. 3 is a circuit diagram of a controller;
FIG. 4 is a circuit diagram of a first current detection module;
FIG. 5 is a schematic circuit diagram of an ultraviolet sensor;
FIG. 6 is a circuit schematic of a wireless data transceiver portion;
FIG. 7 is a schematic circuit diagram of an air quality sensor group;
wherein: 1. the device comprises a controller, 2, a power supply, 3, an air quality sensor group, 4, a variable frequency fan, 5 and an ultraviolet tube.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
The utility model provides an ultraviolet sterilizing equipment for disinfecting purifier, as shown in figure 1 and figure 2, including power 2, frequency conversion fan 4, air quality sensor group 3, controller 1 and ultraviolet pipe 5, frequency conversion fan 4 and wind channel entry linkage, power 2 module respectively with frequency conversion fan 4, controller 1 and ultraviolet pipe 5 are connected, controller 1 is connected with frequency conversion fan 4 and air quality sensor group 3 and ultraviolet pipe 5 respectively, ultraviolet pipe 5 is located in the wind channel, the device is still including the rotational speed detection module that is used for detecting 4 rotational speeds of frequency conversion fan, this rotational speed detection module is connected with controller 1. The ultraviolet tube 5 is designed in the air duct, and meanwhile, the rotating speed information of the variable frequency fan 4 can be provided to control the power of the ultraviolet tube 5, so that the sterilizing effect of the ultraviolet tube 5 is improved. The sterilization rate of the ultraviolet tube 5 is related to the ultraviolet intensity and the air flow rate of the ultraviolet tube, the air flow rate is related to the rotating speed of the variable frequency fan 4 and the air channel sectional area, and the air channel sectional area is not variable, so the air flow rate is related to the rotating speed of the variable frequency fan 4, the rotating speed of the variable frequency fan 4 can be subjected to feedback control on the ultraviolet tube 5, a more accurate sterilization effect is realized, and the functional relation between the specific sterilization rate and the ultraviolet intensity and the rotating speed can be determined through limited experiments, so that the details are not repeated.
The controller 1 adopts STM32F103C8T6, a circuit diagram of the controller is shown in FIG. 3, the air quality sensor group 3 adopts an all-in-one air sensor module S6(PM2.5/PM10/CO 2/TVOC/humiture/CH 2O), a specific circuit diagram is shown in FIG. 7, the selection range of the variable frequency fan 4 is wide basically as long as the size is proper, and the ultraviolet tube 5 can be an ultraviolet sterilizing lamp tube 15W30W40W ZW30S19W and the like.
The power supply 2 module comprises a mains supply input terminal, a first power supply module, a second power supply module and a third power supply module, the input end of the mains supply input terminal is connected to mains supply input, the output end of the mains supply input terminal is respectively connected with the first power supply module, the input end of the second power supply module is connected with the input end of the third power supply module, the output end of the first power supply module is connected to the variable frequency fan 4, the output end of the second power supply module is connected to the controller 1, the output end of the third power supply module is connected to the ultraviolet tube 5, the variable frequency fan 4, the ultraviolet tube 5 and the controller 1 independently supply power, and mutual. The first power supply module, the second power supply module and the third power supply module are commercially available, and are specifically selected according to the rated voltages of the variable frequency fan 4, the controller 1 and the ultraviolet tube 5, for example, if the rated input voltage of the variable frequency fan 4 is 12V DC, the first power supply module should select a regulated power supply 2 of 12V DC, and the support current of the regulated power supply should be not less than the maximum current of the variable frequency fan 4. The person skilled in the art can carry out the typing without hindrance.
In one embodiment, the rotation speed detection module is a first current detection module for detecting a current value flowing through the variable frequency fan 4, and a specific implementation circuit diagram is shown in fig. 4.
In another embodiment, the rotation speed detection module is an encoder, the encoder is connected with the variable frequency fan 4, and specifically, models such as an RMB29 magnetic rotary encoder module can be adopted.
The device also comprises an ultraviolet sensor for detecting the intensity of ultraviolet rays, the ultraviolet sensor is arranged in the air duct near the ultraviolet tube 5 and is connected with the controller 1, the specific circuit diagram of the ultraviolet sensor is shown in figure 5, and the type of the ultraviolet sensor can be yitc-uv-5 v.
The device further comprises a wireless data transceiver connected to the controller 1.
The wireless data transceiver is a 4G module, and a specific circuit diagram thereof is shown in fig. 6.
The control method of the device comprises the following steps:
step S1: when the set time interval of ultraviolet sterilization is reached, the ultraviolet tube 5 is opened for sterilization;
step S2: and controlling the rotating speed of the variable frequency fan 4 according to the intensity of the ultraviolet rays emitted by the ultraviolet tube 5.
The UV sterilization is an independent task, and follows the setting time of the user, and the variable frequency fan 4 is set with the maximum air volume as a priority, specifically, as shown in table 1:
TABLE 1
The measured value/standard value may be set remotely or may be set on the PAD, and the sterilization stage 24H is continuously turned on only once and is prohibited from operating for the rest of the time.
Claims (8)
1. The utility model provides an ultraviolet sterilizing equipment for disinfection purifier, includes power, frequency conversion fan, air quality sensor group, controller and ultraviolet pipe, frequency conversion fan and wind channel entry linkage, power module is connected with frequency conversion fan, controller and ultraviolet pipe respectively, the controller is connected with frequency conversion fan and air quality sensor group and ultraviolet pipe respectively, its characterized in that, the ultraviolet pipe is located in the wind channel, the device is still including the rotational speed detection module that is used for detecting frequency conversion fan rotational speed, and this rotational speed detection module is connected with the controller.
2. The UV sterilizer of claim 1, wherein the power module comprises a mains input terminal, a first power supply module, a second power supply module and a third power supply module, the input end of the mains input terminal is connected to the mains input, the output end of the mains input terminal is connected to the input ends of the first power supply module, the second power supply module and the third power supply module, the output end of the first power supply module is connected to the variable frequency fan, the output end of the second power supply module is connected to the controller, and the output end of the third power supply module is connected to the UV tube.
3. The ultraviolet sterilizer for a sterilization and purification apparatus as claimed in claim 1, wherein the rotation speed detection module is a first current detection module for detecting a value of current flowing through the variable frequency fan.
4. The ultraviolet sterilizer for a sterilization and purification device according to claim 1, wherein the rotation speed detection module is an encoder, and the encoder is connected to the variable frequency fan.
5. The UV sterilizer of claim 1, further comprising a UV sensor for detecting the intensity of UV light, wherein the UV sensor is disposed near the UV tube in the air duct and connected to the controller.
6. The UV sterilizer of claim 1, wherein said apparatus further comprises a wireless data transceiver connected to said controller.
7. The UV sterilizer of claim 6, wherein the wireless data transceiver is a 4G module.
8. The ultraviolet sterilizer for sterilizing and purifying apparatus as claimed in claim 1, wherein said ultraviolet tube is a mercury arc lamp.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921325049.9U CN210699498U (en) | 2019-08-15 | 2019-08-15 | Ultraviolet sterilization device for disinfection and purification device |
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| CN201921325049.9U CN210699498U (en) | 2019-08-15 | 2019-08-15 | Ultraviolet sterilization device for disinfection and purification device |
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| CN210699498U true CN210699498U (en) | 2020-06-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110327756A (en) * | 2019-08-15 | 2019-10-15 | 亿轶环境科技(上海)有限公司 | A kind of ultraviolet sterilization apparatus and control method for sterilizing and purifying device |
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2019
- 2019-08-15 CN CN201921325049.9U patent/CN210699498U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110327756A (en) * | 2019-08-15 | 2019-10-15 | 亿轶环境科技(上海)有限公司 | A kind of ultraviolet sterilization apparatus and control method for sterilizing and purifying device |
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Address after: 1188 Jiuye Road, Qingpu District, Shanghai, 201712 Patentee after: Billion Oxygen Environmental Technology (Shanghai) Co.,Ltd. Address before: 201619 No. 1586 Changxing East Road, Dongjing Town, Songjiang District, Shanghai Patentee before: Yiyi Environmental Technology (Shanghai) Co.,Ltd. |
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