CN216258339U - Ultraviolet harmless sterilizing lamp - Google Patents
Ultraviolet harmless sterilizing lamp Download PDFInfo
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- CN216258339U CN216258339U CN202023258220.4U CN202023258220U CN216258339U CN 216258339 U CN216258339 U CN 216258339U CN 202023258220 U CN202023258220 U CN 202023258220U CN 216258339 U CN216258339 U CN 216258339U
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Abstract
The embodiment of the utility model provides an ultraviolet harmless germicidal lamp, and relates to the technical field of sterilization. The ultraviolet harmless germicidal lamp comprises a shell, a filter glass tube, a plasma lamp tube, a radio frequency focalizer and a radio frequency source, wherein the shell comprises an annular part and a closed part which are mutually connected; the filter glass tube is arranged in the annular part and is exposed relative to the annular part, and two ends of the filter glass tube are connected to the inner wall of the annular part; the plasma lamp tube is inserted in the filter glass tube; the radio frequency focalizer is positioned in the closed part and connected with the end part of the plasma lamp tube; the radio frequency source is positioned in the shell and is connected with the radio frequency focuser through a radio frequency coaxial connector. The ultraviolet harmless germicidal lamp does not generate radiation harmful to human bodies, is safe to the human bodies, has no use limit, does not need people to leave, and can be used for killing microorganisms in public places.
Description
Technical Field
The utility model relates to the technical field of sterilization, in particular to an ultraviolet harmless sterilizing lamp.
Background
Many infectious diseases of humans are transmitted by microorganisms (viruses, bacteria, fungi) through air or aerosols. Uv disinfection is used for microbial inactivation in commercial, industrial and medical environments as a broad range of non-chemical disinfection techniques. Currently, the widely used ultraviolet germicidal lamps adopt low-pressure mercury lamps, and ultraviolet rays emitted by the lamps have certain harm to human health.
Therefore, the existing ultraviolet germicidal lamp is operated by professionals under an unmanned condition, disinfection personnel need to wear protective clothes and protective glasses, and the room needs to be sufficiently ventilated after disinfection is finished, so that generated harmful gas (such as ozone) is emitted. In practice, in places with dense personnel, high mobility and great risk of spreading bacteria and viruses, such as high-speed railways, subways, airplanes, schools, hospitals, libraries and the like, personnel evacuation cannot be carried out, and a fixed ultraviolet light source is not suitable to be placed.
Therefore, the ultraviolet harmless germicidal lamp is designed, does not generate harmful radiation to human bodies, is safe to the human bodies, has no use limitation, does not need people to leave, can be used for killing microorganisms in public places, and is a technical problem which needs to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an ultraviolet harmless germicidal lamp which does not generate harmful radiation to human body, is safe to human body, has no use limitation, does not need people to leave, and can be used for killing microbes in public places.
Embodiments of the utility model may be implemented as follows:
in a first aspect, the present invention provides an ultraviolet harmless germicidal lamp comprising:
a housing including an annular portion and a closed portion connected to each other;
the filter glass tube is arranged in the annular part and is exposed relative to the annular part, and two ends of the filter glass tube are connected to the inner wall of the annular part;
a plasma lamp tube inserted inside the filter glass tube;
the radio frequency focalizer is positioned in the closed part and connected to the end part of the plasma lamp tube;
and the radio frequency source is positioned in the shell and is connected with the radio frequency focalizer through a radio frequency coaxial connector.
In optional embodiment, the shell still includes the base, and base, closing part and annular portion set gradually from supreme down, and filter glass manages and the equal vertical setting of plasma fluorescent tube, and radio frequency source, radio frequency coaxial joint, radio frequency focuser and plasma fluorescent tube set gradually from supreme down.
In an alternative embodiment, the ultraviolet germicidal lamp further comprises:
and the cooling fan is arranged on one side of the radio frequency source far away from the radio frequency focalizer and used for cooling the radio frequency source.
In an optional embodiment, the wall surface of the closed portion is provided with an air inlet and an air outlet, the air inlet and the cooling fan are located at the same height, and the air outlet is located on one side of the radio frequency source close to the radio frequency focalizer.
In an alternative embodiment, the ultraviolet germicidal lamp further comprises:
and the radiating fins are arranged on one side of the radio frequency source far away from the radio frequency focalizer and used for radiating the radio frequency source.
In an alternative embodiment, the heat dissipating fins are annular structures that are disposed around the heat dissipating fan.
In an alternative embodiment, the ultraviolet germicidal lamp further comprises:
the controller is electrically connected with the radio frequency source and is used for controlling the current input to the radio frequency source;
and the power line is electrically connected with the controller and is used for being electrically connected with an external power supply.
In an alternative embodiment, the controller comprises:
the wireless communication module is used for receiving a control instruction of an external device;
and the control module is used for controlling the current input to the radio frequency source according to the control instruction.
In an alternative embodiment, the ultraviolet germicidal lamp further comprises:
and the switch button is arranged on the wall surface of the closed part, is electrically connected with the controller and is used for controlling the current input to the radio frequency source.
In an alternative embodiment, the radio frequency focuser comprises:
the bottom cover is made of a conductive material;
the upper cover is made of a conductive material and is connected with the bottom cover;
the radio frequency antenna penetrates through the bottom cover and is connected to the upper cover, and insulating materials are filled between the radio frequency antenna and the bottom cover;
the metal column runs through the upper cover and is connected to the upper cover on the end, and the metal column sets up with the upper cover interval, and the metal column includes first section and second section, and the second section is kept away from the bottom for first section, and stretches out from the upper cover, and the diameter of second section is greater than the diameter of first section, and the tip of second section is seted up flutedly, and the plasma fluorescent tube is installed in the recess.
The ultraviolet harmless germicidal lamp provided by the embodiment of the utility model has the beneficial effects that:
1. the ultraviolet harmless sterilizing lamp can emit deep ultraviolet rays with required wavelength by utilizing a radio frequency plasma resonance excitation technology, and the plasma lamp tube is inserted into the filtering glass tube, so that light harmful to human bodies can be absorbed, the light emitted by the ultraviolet harmless sterilizing lamp has no ultraviolet injury to the human bodies, and meanwhile, the ultraviolet harmless sterilizing lamp can be used in occasions with people, does not need people to leave, and can be used for killing microorganisms in public places to control the spread of infectious diseases;
2. the shell comprises an annular part and a closed part which are connected with each other, the radio frequency focalizer and the radio frequency source are arranged in the closed part, and the filter glass tube is arranged inside the annular part, so that the whole structure is compact, the size is small, and the filter glass tube and the plasma lamp tube are well protected.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of a UV germicidal lamp according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an ultraviolet germicidal lamp according to an embodiment of the utility model;
FIG. 3 is a schematic diagram of a second viewing angle of the UV germicidal lamp according to an embodiment of the present invention;
fig. 4 is a schematic cross-sectional structural diagram of the rf focalizer.
Icon: 100-ultraviolet harmless germicidal lamps; 110-a housing; 111-a base; 112-a closure; 113-a ring-shaped portion; 114-a reflective surface; 115-an air inlet; 116-an air outlet; 120-filter glass tube; 130-plasma lamp tube; 140-a radio frequency focuser; 141-a bottom cover; 142-an upper cover; 143-a radio frequency antenna; 144-metal posts; 1441 — first stage; 1442-second segment; 145-ceramic material; 150-a radio frequency source; 160-a heat dissipation fan; 170-heat dissipation fins; 180-a controller; 190-power line; 200-switch buttons; 210-radio frequency coaxial connector.
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. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the utility model is used, it is only for convenience of describing the present invention and simplifying the description, but it is not necessary to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, it should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Currently, widely used ultraviolet germicidal lamps are low pressure mercury lamps, which emit light with 253.7nm, 184.9nm, 313.2nm, 365.0nm, 404.7nm, 546.1nm, etc., wherein 253.7nm and 184.9nm ultraviolet light can destroy DNA of microorganisms, and 184.9nm ultraviolet light also can remove oxygen (O) in air2) Becomes ozone (O)3) Ozone itself has a bactericidal effect, but causes problems such as difficulty in breathing, reduction in lung function, damage to the central nervous system, and the like. The sterilization effect of other ultraviolet light with other wavelengths is weak, and the ultraviolet light also has harm to human health, such as causing light dermatitis, and causing erythema, itching, blister, edema and the like on the skin; severe severity of diseaseCan also cause skin cancer; ultraviolet rays can also act on the central nervous system, and headache, dizziness, body temperature rise and the like appear; acting on eyes, it can cause ophthalmia (conjunctivitis, keratitis) and cataract. The light rays emitted by the ultraviolet harmless sterilizing lamp 100 provided by the embodiment do not have ultraviolet damage to people, and can be disinfected and sterilized at the same time, so that the ultraviolet harmless sterilizing lamp 100 can be used in occasions where people exist, and the specific structure of the ultraviolet harmless sterilizing lamp 100 is as follows.
Referring to fig. 1 and 2, the ultraviolet germicidal lamp 100 includes a housing 110, a filter glass tube 120, a plasma lamp tube 130, a radio frequency focuser 140, a radio frequency source 150, a heat dissipating fan 160, heat dissipating fins 170, a controller 180, and a power line 190.
Wherein, shell 110 includes base 111, closure part 112 and the annular portion 113 that sets gradually from bottom to top, and annular portion 113 is annular frame structure.
The filter glass tube 120 is installed inside the annular portion 113 and exposed to the annular portion 113, two ends of the filter glass tube 120 are connected to the inner wall of the annular portion 113, a reflecting surface 114 is disposed on the inner wall of the annular portion 113, and the reflecting surface 114 can reflect light transmitted through the filter glass tube 120 to the indoor space, thereby achieving sterilization and disinfection of the indoor space. The filter glass tube 120 is made of a material capable of absorbing light with a wavelength greater than 228nm, and may be implemented by performing optical coating on glass, or may be implemented by using special glass capable of absorbing light with a wavelength greater than 228 nm.
The plasma lamp 130 is inserted inside the filter glass tube 120. The annular portion 113 protects the filter glass tube 120 and the plasma lamp 130 without affecting the irradiation range of the plasma lamp 130.
The plasma lamp tube 130 always generates a small amount of ultraviolet light rays larger than 228nm when emitting light, the ultraviolet light rays can cause harm to human bodies, the light rays emitted by the ultraviolet harmless sterilizing lamp 100 can be thoroughly ensured to have no ultraviolet harm to people by using the filter glass tube 120, meanwhile, the ultraviolet harmless sterilizing lamp can also be sterilized, and the ultraviolet harmless sterilizing lamp can be used in places with people.
The plasma lamp 130 is a tubular enclosure filled with luminescent substances for ionization excitation, the specific composition of which depends on the radiation spectrum requirements.
Recent ultraviolet sterilization studies have demonstrated that deep ultraviolet rays having a wavelength of 222nm inactivates viruses in the air and is harmless to human skin and eyes because the wavelength of 222nm hardly penetrates tens of microns thick dead cells on the outermost layer of skin, but easily penetrates bacteria and viruses having a thickness of less than 1 μm.
In this embodiment, the luminescent material filled in the plasma lamp 130 comprises mercury, metal halide and inert gas, and the content of the metal halide is between 10% and 90%, so that the plasma lamp 130 generates ultraviolet light with main energy of 222nm ± 10 nm.
The rf focuser 140 is located inside the enclosure 112 and is attached to the end of the plasma lamp 130. The rf source 150 is located inside the housing 110 and is connected to the rf focuser 140 by an rf coaxial connector 210. The filter glass tube 120 and the plasma lamp tube 130 are both vertically arranged, and the radio frequency source 150, the radio frequency coaxial connector 210, the radio frequency focuser 140 and the plasma lamp tube 130 are sequentially arranged from bottom to top. Thus, the ultraviolet germicidal lamp 100 is compact and has a small overall volume.
A heat dissipation fan 160 and heat dissipation fins 170 are installed on the rf source 150 on a side away from the rf focuser 140, and the heat dissipation fan 160 and the heat dissipation fins 170 are used to dissipate heat from the rf source 150. The heat radiating fins 170 have an annular structure, and the annular structure is disposed around the heat radiating fan 160.
Referring to fig. 3, the wall of the sealing portion 112 is provided with an air inlet 115 and an air outlet 116, the air inlet 115 and the heat dissipation fan 160 are located at the same height, and the air outlet 116 is located on the side of the rf source 150 close to the rf focuser 140. Thus, the rf source 150 generates heat during operation, and after the cooling fan 160 is started, air enters the inside of the sealing portion 112 from the air inlet 115, passes through the cooling fins 170, the cooling fan 160 and the rf source 150, and is finally discharged from the air outlet 116, so that heat dissipation of the rf source 150 is realized, and the rf source 150 operates stably.
The controller 180 is electrically connected to the rf source 150, and the controller 180 is used to control the magnitude of the current input to the rf source 150. The power line 190 is electrically connected to the controller 180, and the power line 190 is used for electrical connection to an external power source. The controller 180 may include a wireless communication module for receiving a control command from an external device, and a control module for controlling the current input to the rf source 150 according to the control command.
Referring to fig. 1, the switch button 200 is disposed on the wall of the sealing portion 112, the switch button 200 is electrically connected to the controller 180, and the switch button 200 is used for controlling the magnitude of the current input to the rf source 150.
Referring to fig. 4, the rf focalizer 140 includes a bottom cover 141, an upper cover 142, an rf antenna 143, and a metal pillar 144. The bottom cover 141 and the upper cover 142 are made of conductive materials, the upper cover 142 is connected with the bottom cover 141, the radio frequency antenna 143 penetrates through the bottom cover 141 and is connected to the upper cover 142, and insulating materials are filled between the radio frequency antenna 143 and the bottom cover 141.
The metal column 144 penetrates through the upper cover 142 and is connected to the bottom cover 141, the metal column 144 is spaced apart from the upper cover 142, the metal column 144 includes a first section 1441 and a second section 1442, the second section 1442 is far away from the bottom cover 141 relative to the first section 1441 and extends out of the upper cover 142, and the diameter of the second section 1442 is larger than that of the first section 1441. Thus, the metal pillar 144 has a structure with a thick upper portion and a thin middle portion as a whole.
The first section 1441 of the metal column 144 and the upper cover 142 form a first-stage annular capacitor, and the second section 1442 of the metal column 144 and the upper cover 142 form a second-stage annular capacitor, so that the diameter of the second-stage annular capacitor is smaller than that of the first-stage annular capacitor, electromagnetic field energy can undergo coupling of the multiple stages of annular capacitors, and accordingly the electric field intensity focused to the region where the plasma lamp tube 130 is located is improved, the energy conversion rate is further improved, and the luminous intensity of the plasma lamp tube 130 is enhanced. According to the calculation, under the radio frequency energy input of 915MHZ, the ultraviolet harmless germicidal lamp 100 provided by the embodiment can improve the conversion rate of the radio frequency energy by 15%.
The end of the second section 1442 is formed with a recess in which the plasma lamp 130 is mounted. The end of the plasma lamp 130 is oval, the plasma lamp 130 contacts with the groove in a cambered surface, the ceramic material 145 is arranged between the plasma lamp 130 and the groove, and the ceramic material 145 has the characteristics of low thermal conductivity and high temperature resistance, in the embodiment, the ceramic material 145 is heat-insulating ceramic with the thermal conductivity lower than 0.5W/m.k, so that the heat-insulating effect on the plasma lamp 130 can be achieved, the temperature of the plasma lamp 130 is increased, the luminous efficiency of the luminescent substance in the plasma lamp 130 is improved, and the luminous efficiency of the luminescent substance 12% can be improved through calculation.
The working principle of the ultraviolet harmless germicidal lamp 100 provided by the embodiment is as follows:
an external power supply supplies electric energy to the radio frequency source 150 through a power line 190, the radio frequency source 150 generates radio frequency energy, the radio frequency energy is transmitted to the radio frequency focuser 140 through the radio frequency coaxial connector 210, the radio frequency focuser 140 focuses the radio frequency energy on a focus area where the plasma lamp tube 130 is located, filler in the plasma lamp tube 130 generates ionization reaction, and deep ultraviolet rays with the wavelength concentrated at 222nm +/-10 nm can be emitted. The plasma lamp 130 emits light without an electrode, only gas ionization and recombination reactions are performed, and the filler in the plasma lamp 130 is not consumed along with the light ionization reaction process, so that the plasma lamp 130 can stably operate for a long time.
The beneficial effects of the ultraviolet harmless germicidal lamp 100 provided by the embodiment include:
1. the ultraviolet harmless sterilizing lamp 100 can emit deep ultraviolet rays with the wavelength concentrated at 222nm +/-10 nm by utilizing a radio frequency plasma resonance excitation technology, and the plasma lamp tube 130 is inserted into the filtering glass tube 120, so that light harmful to human bodies can be absorbed, the light emitted by the ultraviolet harmless sterilizing lamp 100 has no ultraviolet injury to the human bodies, and meanwhile, the ultraviolet harmless sterilizing lamp can be used in occasions with people without people leaving, and can be used for killing microorganisms in public places to control the spread of infectious diseases;
2. the ultraviolet harmless germicidal lamp 100 has ultra-strong ultraviolet radiation intensity and narrow spectral distribution, the width of a radiation spectrum can be not more than 10nm, and the service life of a light source is more than 10000 hours.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An ultraviolet germicidal lamp, comprising:
a housing (110) comprising an annular portion (113) and a closure portion (112) connected to each other;
a filter glass tube (120) which is installed inside the annular part (113) and is exposed relative to the annular part (113), and two ends of the filter glass tube (120) are connected to the inner wall of the annular part (113);
a plasma lamp tube (130) inserted inside the filter glass tube (120);
a radio frequency focuser (140) located inside the enclosure (112) and connected to an end of the plasma lamp tube (130);
a radio frequency source (150) located inside the housing (110) and connected to the radio frequency focuser (140) by a radio frequency coaxial connector (210).
2. The UV germicidal lamp as claimed in claim 1, wherein the housing (110) further comprises a base (111), the sealing portion (112) and the annular portion (113) are sequentially disposed from bottom to top, the filter glass tube (120) and the plasma lamp tube (130) are both vertically disposed, and the RF source (150), the RF coaxial connector (210), the RF focuser (140) and the plasma lamp tube (130) are sequentially disposed from bottom to top.
3. The ultraviolet germicidal lamp as recited in claim 1, further comprising:
a heat dissipation fan (160) installed on a side of the radio frequency source (150) far away from the radio frequency focalizer (140), the heat dissipation fan (160) being used for dissipating heat of the radio frequency source (150).
4. The UV germicidal lamp as claimed in claim 3, wherein the wall of the enclosure (112) has an air inlet (115) and an air outlet (116), the air inlet (115) and the heat dissipation fan (160) are located at the same height, and the air outlet (116) is located at a side of the RF source (150) close to the RF focalizer (140).
5. The ultraviolet germicidal lamp as recited in claim 3, further comprising:
a heat sink fin (170) mounted on the RF source (150) on a side thereof remote from the RF focuser (140), the heat sink fin (170) for dissipating heat from the RF source (150).
6. The UV germicidal lamp as recited in claim 5, wherein the heat dissipating fins (170) are ring shaped structures disposed around the heat dissipating fan (160).
7. The ultraviolet germicidal lamp as recited in claim 1, further comprising:
a controller (180) electrically connected to the radio frequency source (150), the controller (180) being configured to control an amount of current input to the radio frequency source (150);
a power cord (190) electrically connected to the controller (180), the power cord (190) being for electrical connection to an external power source.
8. The ultraviolet germicidal lamp as recited in claim 7, wherein the controller (180) comprises:
the wireless communication module is used for receiving a control instruction of an external device;
and the control module is used for controlling the current input to the radio frequency source (150) according to the control instruction.
9. The ultraviolet germicidal lamp as recited in claim 7, further comprising:
and a switch button (200) disposed on a wall surface of the closing portion (112), wherein the switch button (200) is electrically connected to the controller (180), and the switch button (200) is used for controlling the current input to the radio frequency source (150).
10. The uv germicidal lamp as claimed in claim 1, wherein the rf focuser (140) comprises:
a bottom cover (141) made of a conductive material;
the upper cover (142) is made of a conductive material, and the upper cover (142) is connected with the bottom cover (141);
a radio frequency antenna (143) penetrating the bottom cover (141) and connected to the upper cover (142), wherein an insulating material is filled between the radio frequency antenna (143) and the bottom cover (141);
the metal column (144) penetrates through the upper cover (142) and is connected to the bottom cover (141), the metal column (144) and the upper cover (142) are arranged at intervals, the metal column (144) comprises a first section (1441) and a second section (1442), the second section (1442) is far away from the bottom cover (141) relative to the first section (1441) and extends out of the upper cover (142), the diameter of the second section (1442) is larger than that of the first section (1441), a groove is formed in the end of the second section (1442), and the plasma lamp tube (130) is installed in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023258220.4U CN216258339U (en) | 2020-12-29 | 2020-12-29 | Ultraviolet harmless sterilizing lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023258220.4U CN216258339U (en) | 2020-12-29 | 2020-12-29 | Ultraviolet harmless sterilizing lamp |
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| Publication Number | Publication Date |
|---|---|
| CN216258339U true CN216258339U (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023258220.4U Active CN216258339U (en) | 2020-12-29 | 2020-12-29 | Ultraviolet harmless sterilizing lamp |
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|---|---|
| CN (1) | CN216258339U (en) |
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