CN212347285U

CN212347285U - Ultraviolet sterilizing lamp

Info

Publication number: CN212347285U
Application number: CN202020290470.7U
Authority: CN
Inventors: 罗建富
Original assignee: Zhejiang Fuerj Electric Science And Technology Co ltd
Current assignee: Zhejiang Fuerj Electric Science And Technology Co ltd
Priority date: 2020-03-10
Filing date: 2020-03-10
Publication date: 2021-01-15
Anticipated expiration: 2030-03-10

Abstract

The utility model provides an ultraviolet sterilization and disinfection lamp, which belongs to environmental protection equipment. It solves the problems of the prior art that although the design of the prior art can sterilize and disinfect the air, it will cause great damage to the people irradiated by it at the same time. The ultraviolet sterilization and disinfection lamp includes a lamp shell and an ultraviolet lamp tube arranged in the lamp shell, and is characterized in that: the lamp shell itself or its inner side is made of a material that blocks the ultraviolet rays emitted by the ultraviolet lamp tube from radiating to the outside through the lamp shell. , There are air inlets and air outlets on the lamp housing. The advantages of the ultraviolet sterilization and disinfection lamp are: the disinfection lamp adopts a closed structure, the lamp is covered, the surrounding air is drawn into the closed shell container by the exhaust device, and then the air is sterilized and sterilized in stages by using the partition plate. , and then discharge the treated air, so that the air can be sterilized, and the users located near it will not be affected by the radiation.

Description

Ultraviolet sterilizing lamp

Technical Field

The utility model belongs to the environmental protection equipment especially relates to an ultraviolet sterilization sterilamp.

Background

Ultraviolet sterilization is to destroy and change the DNA (deoxyribonucleic acid) structure of microorganisms by ultraviolet irradiation, so that bacteria die immediately or cannot reproduce later generations, and the purpose of sterilization is achieved. The ultraviolet rays really have the bactericidal effect are UVC ultraviolet rays, because the C-band ultraviolet rays are easily absorbed by DNA of microorganisms, the UVC band is 100-275 nm in wavelength, the penetration capacity of the ultraviolet rays is weakest, most of transparent glass and plastic cannot be penetrated, short-wave ultraviolet rays contained in sunlight are almost completely absorbed by an ozone layer, but the short-wave ultraviolet rays have great damage to a human body, the skin can be burnt by short-time irradiation, skin cancer can be caused by long-term or high-intensity irradiation, the ultraviolet rays are also very harmful to human eyes by irradiation, the eyes can be red and swollen, lacrimation and can not be opened by short-term large-dose irradiation, and cataract and even blindness can be caused by long-term ultraviolet radiation.

SUMMERY OF THE UTILITY MODEL

The first purpose of the utility model is to solve the above problems, and provide an ultraviolet sterilization lamp which can realize the ultraviolet irradiation sterilization and disinfection of the surrounding air and can avoid the injury of the human body caused by the generated radiation.

In order to achieve the above purpose, the utility model adopts the following technical proposal: the utility model discloses an ultraviolet sterilization sterilamp, including the lamp body and locate the ultraviolet tube in the lamp body, its characterized in that: the lamp shell or the inner side of the lamp shell is made of a material which can prevent ultraviolet rays emitted by the ultraviolet lamp tube from penetrating through the lamp shell to radiate to the outside, an air inlet and an air outlet are formed in the lamp shell, an air draft structure used for sucking outside air from the air inlet and exhausting from the air outlet is arranged between the air inlet and the air outlet, a wind blocking structure used for delaying the flow speed of the wind flowing into the lamp shell and/or prolonging the traveling distance of the wind flowing into the lamp shell is arranged between the air inlet and the air outlet in the lamp shell, and the ultraviolet lamp tube and the air draft structure are respectively and electrically connected with the control.

In the above ultraviolet germicidal lamp, the wind blocking structure includes a spiral spacer spirally disposed along the advancing direction of the wind, and the spiral spacer spirally advances the wind flowing into the lamp housing toward the air outlet.

In the ultraviolet sterilizing lamp, the middle part of the spiral spacer is provided with a lamp hole for the ultraviolet lamp to penetrate through.

In the ultraviolet germicidal lamp, the outer circumference of the spiral spacer, which is arranged along the direction of wind advance, is matched with the inner side of the lamp housing.

In the ultraviolet sterilizing lamp, the wind blocking structure comprises a plurality of plate-shaped spacers for enabling the wind flowing into the lamp housing to advance towards the air outlet in a bent shape, the adjacent plate-shaped spacers are arranged in a staggered mode along the wind advancing direction, and the wind flowing into the lamp housing flows out through the gap between every two adjacent plate-shaped spacers.

In the ultraviolet sterilizing lamp, the lamp hole for the ultraviolet lamp to penetrate through is formed in one side, close to the middle part of the lamp shell, of the plate-shaped partition.

In the above-mentioned ultraviolet germicidal lamp, the sum of the areas of each adjacent two plate-shaped partitions is at least substantially the same size as the cross-section of the inner side of the lamp housing.

In the above ultraviolet sterilizing lamp, the wind blocking structure is made of a material having a function of reflecting and/or refracting ultraviolet rays emitted from the ultraviolet lamp tube, and in addition, the outer surface of the wind blocking structure is a smooth structure.

In the ultraviolet sterilizing lamp, the air draft structure comprises a fan which is arranged on the air inlet and used for sucking outside air into the lamp housing and/or an air outlet and used for exhausting air irradiated by the ultraviolet lamp tube in the lamp housing; a negative ion generator is also arranged in the lamp shell; the air inlet and the air outlet of the lamp shell are respectively provided with a shading plate made of a material for blocking ultraviolet rays emitted by the ultraviolet lamp tube from radiating to the outside through the lamp shell.

In the ultraviolet sterilizing lamp, the lamp housing is of a vertical structure, and the air inlet and the air outlet are respectively arranged at the bottom and the top of the lamp housing.

Compared with the prior art, the ultraviolet sterilization and disinfection lamp has the advantages that:

1. the ultraviolet light is shielded by the lamp housing, so that the lamp can be used by a user at a short distance and for a long time;

2. the plate-shaped spacer or the spiral spacer is used for carrying out sectional sterilization and disinfection on the air in the shell, so that the air has sufficient time to contact with ultraviolet rays in the lamp tube area, and the spiral wind guide can reduce noise and soften the wind speed;

3. the outer surfaces of the plate-shaped spacer and the spiral spacer are of bright mirror surface structures, so that the disinfection effect is further enhanced;

4. the arrangement of the negative ion generator increases the sterilization effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 provides a schematic view of the overall structure of the embodiment of the present invention in the case of a mechanical plate.

Fig. 2 provides a schematic diagram of the internal structure of the spiral spacer in the embodiment of the present invention.

Fig. 3 provides a schematic diagram of an explosion structure using spiral spacers in an embodiment of the present invention.

Fig. 4 provides a schematic structural diagram of the embodiment of the present invention in which the spiral spacer is used.

Fig. 5 provides a schematic view of an angle of the internal structure using the separating sheet according to an embodiment of the present invention.

Fig. 6 provides a schematic diagram of an explosive structure using a separator in an embodiment of the present invention.

Fig. 7 provides a schematic view of the internal structure of another angle using the separating sheet in the embodiment of the present invention.

Fig. 8 provides a schematic diagram of the overall structure of the embodiment of the present invention in the case of the smart version.

In the figure, a lamp housing 101, an ultraviolet lamp tube 102, an air inlet 103, an air outlet 104, a spiral spacer 105, a lamp hole 106, a plate-shaped spacer 107, a fan 108, an anion generator 109, a light shielding plate 110, a control circuit board 111, a lamp holder fixing plate 112, a lamp holder 113, a base 114, an air inlet plate 115, a top plate 116, a key 117, an indicator light 118, an air inlet hole 119, a support 120, an air outlet cover 121, and a control panel 122 are shown.

Detailed Description

The ultraviolet sterilization and disinfection characteristics are as follows: airborne pathogens are invisible to the eye and many are so small that they can easily pass through standard air filtration facilities, and the addition of ultraviolet air disinfection to the filtration equation prevents even the smallest microorganisms from growing.

Ultraviolet sterilization principle: the purpose of sterilization and disinfection is achieved by irradiating ultraviolet rays to penetrate cell membranes of microorganisms, destroy DNA structures of various germs, bacteria, parasites and other pathogens, destroy nucleic acid molecular bonds of the pathogens, enable the bacteria to die immediately or cannot reproduce offspring, and destroy and change the DNA (deoxyribonucleic acid) structures of the microorganisms. This disruption or disruption renders the microorganism incapable of reproduction. Once lacking in reproductive capacity, the organism will die to reproduce the offspring in a moment, and some airborne pathogens will have a greater ability to recover the effects of UV light energy than others. For example, viruses are more easily destroyed than bacteria, while a maximum amount of uv light is required to effectively reduce mold spores.

The ultraviolet sterilization and disinfection has the advantages that:

1. the bactericidal lamp can kill hospital bacteria, resistant bacteria and viruses within 20 to 30 minutes, is suitable for patients with weak immunity such as hospitals, medical institutions, nursing homes, kindergartens and families, and can prevent bacterial infection of infants and the old.

2. Mite killing, which can thoroughly kill dust mites inhabiting bedding, carpets, sofas, dolls and comforters of children, bathroom bedding and other places, and solve the allergy occurrence of atopy, rhinitis, asthma and the like.

3. The product is convenient to use, can be carried to sterilize in any place needing sterilization, does not promote the resistance and variation of bacteria, does not make the bacteria become strong unlike chemical medicines, does not need to add any amount, does not promote the variation, and is beneficial to human body.

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Example 1

As shown in fig. 1 to 4, the ultraviolet germicidal lamp in this embodiment is a vertical structure, the lamp housing 101 is vertically disposed, the lamp housing 101 is provided with an air outlet 104 at the top and an air inlet 103 at the bottom, an ultraviolet lamp tube 102 is disposed in the lamp housing 101, the lamp housing 101 itself or the inner side thereof is made of a material that can block ultraviolet rays emitted by the ultraviolet lamp tube 102 from penetrating through the lamp housing 101 to radiate to the outside, so that people can still approach the germicidal lamp when the ultraviolet lamp tube 102 is in a working state and cannot be damaged by the ultraviolet rays emitted by the ultraviolet lamp tube 102, and the ultraviolet lamp tube 102 and the air exhausting structure are further provided with a wind blocking structure, an air exhausting structure, and a control component, wherein the ultraviolet lamp tube 102 and the air exhausting structure are respectively electrically connected.

It should be noted that, as shown in fig. 1, the mechanical plate of this embodiment is provided with a button 117 having a switch button for controlling the power switch and the on/off of the ultraviolet lamp 102, a fan button for controlling the on/off of the fan 108, and an anion button for controlling the on/off of the anion generator 109, and its control components are not the control circuit board 111 of the PCB structure as shown in fig. 3 and 6, but the control components are powered on by pressing the button 117 mechanically to control the on/off of the ultraviolet lamp 102 and the air draft structure, as shown in fig. 8, the intelligent plate of this embodiment is provided with a control panel 122, the control panel 122 is provided with a plurality of buttons 117, including a switch button for controlling the power switch and the on/off of the ultraviolet lamp 102, a fan button for controlling the on/off and the gear of the fan 108, a timing mode setting and timing selection button, a button for controlling the cleaning or replacement of the ultraviolet lamp 102, an anion button for controlling the on/off of, the control circuit board 111 with the PCB structure is arranged in the control circuit board, the control circuit board 111 with the PCB structure transmits an electric signal to the control circuit board 111 with the PCB structure by pressing the key 117 on the control panel 122, and the control circuit board 111 controls the start and stop of the ultraviolet lamp tube 102 and the air draft structure.

It should be noted that the ultraviolet germicidal lamp may also be configured in a horizontal structure or other structures according to the requirement, without limitation, where the air inlet 103 and the air outlet 104 are also configured in the positions of the lamp housing 101 according to the requirement, without limitation, and of course in this embodiment, the ultraviolet germicidal lamp is in a vertical structure, and the arrangement where the air outlet 104 and the air inlet 103 are respectively disposed at the top and the bottom of the lamp housing 101 has the advantages of compact structure and being beneficial to the entry and the discharge of wind, and in addition, the ultraviolet lamp tube 102 may emit ultraviolet light with germicidal and disinfecting effects, and preferably, the ultraviolet lamp tube 102 may be a UVC lamp tube so as to emit UVC ultraviolet light easily absorbed by DNA of microorganisms.

In addition, as shown in fig. 3, 5, 6 and 7, the air inlet 103 and the air outlet 104 of the lamp housing 101 are respectively provided with a light shielding plate 110 made of a material for blocking ultraviolet rays emitted by the ultraviolet lamp tube 102 from radiating to the outside through the air inlet 103 and the air outlet 104, so that most of the ultraviolet rays emitted by the ultraviolet lamp tube 102 are always kept in the lamp housing 101, and radiation damage to people near the lamp housing is further reduced.

Additionally, as shown in fig. 2, 3, 5 and 6, preferably, two ends of the ultraviolet lamp tube 102 are respectively inserted into a pair of lamp holders 113 disposed near the air inlet 103 and near the air outlet 104, so that the ultraviolet lamp tube 102 can be drawn out for cleaning or replacement;

as shown in fig. 2, 3, 5 and 6, in order to facilitate the installation of the fan 108, the top plate 116 is covered on the air outlet 104 in this embodiment, in order to facilitate the operation, the top plate 116 is provided with a button 117 and an indicator light 118, in addition, in order to facilitate the installation of the lamp holder 113, the upper end and the lower end of the lamp housing 101 are respectively provided with an air inlet plate 115 provided with air inlet holes 119, a pair of lamp holders 113 are respectively installed between the air inlet plate 115 and the light shielding plate 110 which are located at the relatively upper portion, and the air inlet plate 115 and the light shielding plate 110 which are located at the relatively lower portion, the area of the air inlet plate 115 is substantially the same as the cross section of the inner side of the lamp housing 101, and the area of the light shielding plate 110 is smaller than.

As shown in fig. 1, the air inlet 103 in this embodiment is a grid structure and is disposed on the periphery of the bottom end of the lamp housing 101, which is beneficial to absorbing external air from all directions, and the air outlet 104 is provided with the air outlet housing 121, and the division bars on the air outlet housing 121 are arranged in a parabolic manner from the middle of the air outlet housing 121 along the radial direction to the outside, so that the air sterilized and disinfected by ultraviolet rays can be rapidly and uniformly diffused all around when being discharged.

In addition, as shown in fig. 2, 3, 5, 6, and 7, an air draft structure for drawing in external air from the air inlet 103 and exhausting the external air from the air outlet 104 is disposed between the air inlet 103 and the air outlet 104 in the lamp housing 101, and specifically, the air draft structure includes a fan 108 disposed on the air inlet 103 for drawing in external air into the lamp housing 101 and/or on the air outlet 104 for exhausting the air irradiated by the ultraviolet lamp tube 102 in the lamp housing 101.

As shown in fig. 2 to 4, a choke structure for delaying the flow rate of the wind flowing into the lamp housing 101 and/or extending the traveling distance of the wind flowing into the lamp housing 101 is disposed between the air inlet 103 and the air outlet 104 in the lamp housing 101, and specifically, the choke structure includes a spiral spacer 105 spirally disposed along the advancing direction of the wind, and the spiral spacer 105 spirally advances the wind flowing into the lamp housing 101 toward the air outlet 104 to extend the traveling distance of the wind in the lamp housing 101 and better delay the wind speed of the wind in the process of traveling, thereby facilitating the wind to receive ultraviolet radiation for a longer time.

Note that, as shown in fig. 2, the choke structure here is directly engaged with the inside of the lamp housing 101, or as shown in fig. 5 and 6, the choke structure may be provided on the bracket 120.

In addition, the middle part of the spiral spacer 105 is provided with a lamp hole 106 for the ultraviolet lamp tube 102 to penetrate through, so that the ultraviolet lamp tube 102 can be arranged at the middle position of the lamp housing 101, which is beneficial for the ultraviolet lamp tube to irradiate all around, and no or few irradiation dead angles exist, thereby being beneficial for the wind energy in the traveling lamp housing 101 to better receive the irradiation of ultraviolet rays.

Additionally, as shown in the figure, a negative ion generator 109 is also arranged in the lamp housing 101;

preferably, as shown in fig. 2, the outer circumference side of the spiral-shaped spacer 105 disposed along the wind advancing direction is matched with the inner side of the lamp housing 101, so that most of the wind entering the lamp housing 101 can spirally advance upwards along the spiral-shaped spacer 105 to achieve the effects of extending the wind traveling distance and slowing down the wind speed.

Example 2

This embodiment is substantially the same as embodiment 1 except that: the wind blocking structure is made of a material with a function of reflecting and/or refracting ultraviolet rays emitted by the ultraviolet lamp tube 102, and the outer surface of the wind blocking structure is a smooth structure, so that the wind blocking structure can better reflect or refract the ultraviolet rays when being irradiated by the ultraviolet rays emitted by the ultraviolet lamp tube 102, and the traveling wind energy can be irradiated by the ultraviolet rays at more angles to enhance the sterilization effect of the wind blocking structure.

Preferably, the outer surface of the wind blocking structure is a mirror surface structure so as to improve the ultraviolet reflection function of the wind blocking structure and be beneficial to enhancing the sterilization and disinfection effect of the reflected ultraviolet on the traveling wind.

It should be noted that there are many materials capable of reflecting or refracting ultraviolet rays, and aluminum materials are generally used, but not limited to.

Preferably, the lamp housing 101 itself is made of a material having a function of reflecting and/or refracting ultraviolet rays, or a layer of a material having a function of reflecting ultraviolet rays is coated on the inner side of the lamp housing 101, and the light shielding plate 110 is also made of a material having a function of reflecting ultraviolet rays.

Example 3

This example is substantially the same as examples 1 and 2, except that: as shown in fig. 5 to 7, the choke structure is another structure, and specifically, the choke structure includes a plurality of plate-shaped spacers 107 for bending the wind flowing into the lamp housing 101 and moving toward the air outlet 104, adjacent plate-shaped spacers 107 are arranged in a staggered manner along the wind moving direction, and the wind flowing into the lamp housing 101 flows out through a gap between every two adjacent plate-shaped spacers 107.

As shown in fig. 6, a lamp hole 106 through which the ultraviolet lamp 102 passes is formed on one side of the plate-shaped spacer 107 near the middle of the lamp housing 101.

As shown in fig. 5 and 6, the sum of the areas of each adjacent two plate-shaped spacers 107 is at least substantially the same size as the cross-section of the inner side of the lamp housing 101 to extend the traveling distance of the wind inside the lamp housing 101 and to better retard the wind speed of the traveling wind, thereby facilitating it to receive ultraviolet irradiation for a longer time.

The working principle is as follows: air is pumped into a lamp housing 101 container containing an ultraviolet lamp tube 102 from an air inlet 103 by a fan 108, the air division area is sterilized and disinfected by a spiral partition 105 or a plate partition 107, so that the air can stay in the lamp tube area for enough time to be treated, no dead angle exists in 360 degrees, the sterilization and disinfection efficiency is improved, and the treated air is discharged from an air outlet 104 at the top, so that the indoor air can be sufficiently sterilized and disinfected in a limited indoor space.

The operating method of the disinfection lamp is characterized in that the disinfection lamp is the ultraviolet sterilization disinfection lamp, and the operating method comprises the following steps.

Step 100, turning on a power switch, and electrifying the ultraviolet lamp tube 102.

Step 200, judging the current state of the ultraviolet lamp tube 102, alarming if the ultraviolet lamp tube 102 is not lighted, and entering the next step if the ultraviolet lamp tube 102 is lighted.

It should be noted that if the ultraviolet lamp tube 102 is broken, an alarm is given, which may be a light-emitting alarm, such as the indicator light 118 emitting red light, or a sound alarm, such as the buzzer emitting alarm sounds for a set time, and then the ultraviolet lamp tube is turned off directly, and any key is pressed again, so that the disinfection lamp cannot operate, and only an alarm is given.

Additionally, in the step of determining the current status of the ultraviolet lamp 102, when the ultraviolet lamp 102 can illuminate, if the illumination time of the ultraviolet lamp 102 reaches the set accumulated operation time, an alarm is also issued, but the step of starting the fan is not stopped.

It should be noted that, in order to ensure that the ultraviolet lamp 102 can work normally, when the total working time of the ultraviolet lamp 102 exceeds the set accumulated running time (this value may be determined by referring to the service life of the general ultraviolet lamp 102 or the time that the ultraviolet lamp 102 has reached the time required for cleaning, which is set according to the current experience of use), the disinfection lamp will give an alarm to the user, and the alarm may be given by lighting, such as the indicator 118 giving a yellow light, or by sound, such as a buzzer.

Step 300, starting the fan, wherein the fan starting mode comprises a manual mode, a timing mode and an automatic mode, and one of the three modes is started alternatively.

The manual mode is that the fan running speed is set manually, and the fan running speed comprises three gears of high speed, medium speed and low speed; the selectable fan operation time in the timing mode comprises a first operation time period, a second operation time period and a third operation time period, wherein the fan operation mode of any one of the three operation time periods is the same, namely, the fan is operated at a high speed within a set high-speed operation time period firstly, then the fan is operated at a medium speed within a set medium-speed operation time period, and in the rest time, the following steps are repeatedly executed, namely, the fan is in a stop state within a set stop operation time period firstly, and then the fan is operated at a low speed within a set low-speed operation time period until the selected operation time period is finished; the automatic mode is to operate the fan within a set automatic operation time period, one of the operation modes is the same as the operation mode of the fan in the timing mode, and of course, a plurality of fan operation modes different from the timing mode can be set according to requirements.

It should be noted that, in the timing mode and the automatic mode, the fan is operated at the high-speed gear for a period of time, then at the medium-speed gear for a period of time, and finally at the rest of the time in a cyclic alternating manner of stopping operation and operating at the low-speed gear, such a rhythm is in accordance with the law that bacteria in the air outside the disinfecting lamp are gradually reduced from a lot before being untreated to after being treated by the disinfecting lamp, thereby being beneficial to saving the electric energy consumed by the disinfecting lamp and prolonging the service life of the fan 108.

In addition, in order to ensure sufficient sterilization time, the first operation period, the second operation period and the third operation period in the timer mode are all in the unit of hour, and the values are gradually increased, so that the user can select the operation period according to the requirement.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the lamp housing 101, the ultraviolet lamp tube 102, the air inlet 103, the air outlet 104, the spiral spacer 105, the tube hole 106, the plate-shaped spacer 107, the fan 108, the anion generator 109, the shade 110, the control circuit board 111, the lamp holder fixing plate 112, the lamp holder 113, the base 114, the air inlet plate 115, the top plate 116, the key 117, the indicator light 118, the air inlet hole 119, the bracket 120, the air outlet cover 121, the control panel 122, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. An ultraviolet sterilization disinfection lamp, includes lamp body (101) and locates ultraviolet tube (102) in lamp body (101), its characterized in that: the lamp shell (101) is made of a material which can block ultraviolet rays emitted by the ultraviolet lamp tube (102) from penetrating through the lamp shell (101) to radiate to the outside, an air inlet (103) and an air outlet (104) are formed in the lamp shell (101), an air draft structure which is used for sucking outside air from the air inlet (103) and exhausting the air from the air outlet (104) is arranged between the air inlet (103) and the air outlet (104), a wind blocking structure which is used for delaying the flow rate of the wind flowing into the lamp shell (101) and/or prolonging the traveling distance of the wind flowing into the lamp shell (101) is arranged between the air inlet (103) and the air outlet (104) in the lamp shell (101), and the ultraviolet lamp tube (102) and the air draft structure are electrically connected with the control component respectively.

2. The UV germicidal lamp as claimed in claim 1, wherein the wind blocking structure comprises a spiral spacer (105) spirally disposed along the wind advancing direction, the spiral spacer (105) spirally advances the wind flowing into the lamp housing (101) toward the wind outlet (104).

3. The UV germicidal lamp as claimed in claim 2, wherein the spiral spacer (105) has a lamp hole (106) in the middle for the UV lamp (102) to pass through.

4. The UV germicidal lamp as claimed in claim 2, wherein the outer circumference of the spiral spacer (105) along the wind direction is matched with the inner side of the lamp housing (101).

5. The UV germicidal lamp as claimed in claim 1, wherein the wind blocking structure comprises a plurality of plate-shaped spacers (107) for bending the wind flowing into the lamp housing (101) to advance toward the wind outlet (104), adjacent plate-shaped spacers (107) are staggered along the wind advancing direction, and the wind flowing into the lamp housing (101) flows out through the gap between every two adjacent plate-shaped spacers (107).

6. The UV germicidal lamp as claimed in claim 5, wherein the plate-shaped spacer (107) has a lamp hole (106) formed on a side thereof near the middle of the lamp housing (101) for the UV lamp (102) to pass through.

7. The UV germicidal lamp as claimed in claim 4, characterized in that the sum of the areas of each two adjacent plate-shaped spacers (107) is at least substantially the same size as the cross-section of the inner side of the lamp housing (101).

8. The UV germicidal lamp as recited in claims 1 to 7, characterized in that the choke structure is made of a material having a function of reflecting and/or refracting the UV rays emitted from the UV tube (102); the outer surface of the wind-blocking structure is of a smooth structure.

9. The UV germicidal lamp as claimed in any of claims 1 to 7, wherein the air exhausting structure comprises a fan (108) disposed at the air inlet (103) for sucking outside air into the lamp housing (101) and/or at the air outlet (104) for exhausting air irradiated from the lamp housing (101) through the UV tube (102); a negative ion generator (109) is also arranged in the lamp housing (101); the air inlet (103) and the air outlet (104) of the lamp shell (101) are respectively provided with a shading plate (110) which is made of a material for blocking ultraviolet rays emitted by the ultraviolet lamp tube (102) from transmitting the lamp shell (101) to radiate to the outside.

10. The UV germicidal lamp as claimed in any one of claims 1 to 7, wherein the lamp housing (101) is a vertical structure, and the air inlet (103) and the air outlet (104) are respectively disposed at the bottom and the top of the lamp housing (101).