CN111388692A

CN111388692A - Disinfection cabinet and disinfection method applying same

Info

Publication number: CN111388692A
Application number: CN202010240640.5A
Authority: CN
Inventors: 吴再锐; 王军元; 张文龙
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-07-10
Anticipated expiration: 2040-03-31
Also published as: CN111388692B

Abstract

The invention discloses a disinfection cabinet, which comprises a cabinet body (1) with a disinfection cavity (11), and is characterized in that: the disinfection cavity (11) is internally provided with a disinfection device capable of generating pulse flash with the wavelength of 200-1100 nm. The invention also discloses a disinfection method using the disinfection cabinet. Compared with the prior art, the disinfection cabinet has the advantages that the disinfection device capable of generating pulse flash with the wavelength of 200-1100 nm is arranged in the cabinet body of the disinfection cabinet, the disinfection cavity is disinfected by using photochemical reaction, flash heating effect and pulse effect of ultraviolet wave bands in the pulse flash, and the disinfection cabinet is high in disinfection efficiency and good in disinfection effect.

Description

Disinfection cabinet and disinfection method applying same

Technical Field

The invention relates to the technical field of kitchen equipment, in particular to a disinfection cabinet and a disinfection method using the same.

Background

The disinfection modes of the existing disinfection cabinet products on the market are as follows: ultraviolet sterilization, in which ultraviolet rays are generated by a mercury lamp to perform sterilization; ozone disinfection, which is to disinfect by utilizing the strong oxidizing property of ozone; the ozone and the ultraviolet rays are used for disinfection, and a high-ozone ultraviolet lamp is used for generating the ultraviolet rays and the ozone at the same time, so that a disinfection mode of combined action of ultraviolet irradiation and ozone oxidation is achieved; high-temperature disinfection, adopting infrared heating technology to heat the internal temperature of the disinfection cabinet to a certain high temperature for disinfection.

However, in the ultraviolet sterilization, the effect of bacteria exposed to the ultraviolet irradiation part is obvious, but the sterilization efficiency is low for the shadow part shielded by the dishes by means of ultraviolet reflection; ozone disinfection causes ozone oxide remained on the tableware to harm human health; when the infrared ray is used for high-temperature disinfection, the temperature in the disinfection cabinet needs to be heated to more than 100 degrees, the disinfection time is long, and a human body is easily scalded.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a disinfection cabinet with high disinfection efficiency and good disinfection effect aiming at the current situation of the prior art.

The second technical problem to be solved by the invention is to provide a disinfection cabinet which avoids electric shock and reduces noise.

The third technical problem to be solved by the invention is to provide a disinfection cabinet with a disinfection device convenient to disassemble and assemble.

The fourth technical problem to be solved by the invention is to provide a disinfection method using the disinfection cabinet.

The technical scheme adopted by the invention for solving the first technical problem is as follows: a disinfection cabinet, which comprises a cabinet body with a disinfection cavity, and is characterized in that: the disinfection cavity is internally provided with a disinfection device capable of generating pulse flash with the wavelength of 200-1100 nm.

In order to realize the generation of pulse flash, the disinfection device is a xenon lamp tube which comprises

The xenon gas generator comprises a tube body, a power supply and a control circuit, wherein xenon gas is filled in the tube body and is provided with a positive electrode end and a negative electrode end; and

the trigger wire is wound on the peripheral wall of the tube body and is provided with a leading-out end.

In order to further solve the second technical problem, the xenon lamp tube further comprises

The tube cover is sleeved on the periphery of the tube body, and an interlayer is formed between the inner peripheral wall of the tube cover and the outer peripheral wall of the tube body;

the trigger wire is accommodated in the interlayer.

In order to further reduce the noise, the interior of the interlayer is vacuumized.

In order to realize the installation of the xenon lamp tube on the cabinet body, two ends of the xenon lamp tube are respectively installed on the inner side wall of the cabinet body through a first lamp holder and a second lamp holder;

the xenon lamp tube also comprises

The first conductive piece is arranged at the first end of the tube body and is electrically connected with the positive end of the tube body;

the second conductive piece is arranged on the outer peripheral wall of the tube body close to the first end and is electrically connected with the leading-out end of the trigger wire; and

the third conductive piece is arranged at the second end of the tube body and is electrically connected with the negative end of the tube body;

a first socket for the first end of the tube body to be inserted is formed in the side wall of the first lamp holder, a first contact piece and a second contact piece are arranged in the first socket, the first contact piece is in contact with the first conductive piece, and the second contact piece is in contact with the second conductive piece;

and a second socket for the third conductive piece to be inserted is formed on the side wall of the second lamp holder, a third contact piece is arranged in the second socket, and the third contact piece is contacted with the third conductive piece.

In order to ensure the sufficient contact between the first conductive member and the first contact piece, the first contact piece is cylindrical, the first conductive member is cylindrical and is inserted into the first contact piece, and the outer wall of the first conductive member is abutted against the inner wall of the first contact piece.

In order to ensure the sufficient contact between the second conductive piece and the second contact piece, the second contact piece is annular and is sleeved on the pipe body, a first spring is arranged in the first socket, the first spring is sleeved on the pipe body, two ends of the first spring respectively act between the bottom surface of the first socket and the end surface of the second contact piece, and the other end surface of the second contact piece can always keep a trend of abutting against the second conductive piece.

In order to further solve the third technical problem, a notch is formed in the front end of the second lamp holder, the third conductive piece can pass through the notch and enter the second socket, and a limiting component capable of opening and closing the notch is arranged on the second lamp holder.

In order to realize the opening and closing of the notch, the second lamp holder is provided with a mounting groove for mounting a limiting component, and the limiting component comprises

The mounting column is arranged on the side wall of the mounting groove;

the limiting block is provided with a slot for inserting the end part of the mounting column; and

the second spring is sleeved on the mounting column, two ends of the second spring respectively act on the side wall of the mounting groove and the limiting block, and the limiting block can always keep a trend of closing the gap.

The technical scheme adopted by the invention for solving the fourth technical problem is as follows: the disinfection method using the disinfection cabinet is characterized in that: the disinfection device is adopted to generate pulse flash with the wavelength of 200-1100 nm to disinfect the disinfection cavity 11 of the cabinet body 1.

In order to ensure the disinfection effect, the pulse width of the pulse flash is 10-100 us, and the energy density of the pulse flash is more than or equal to 0.01J/cm²。

In order to ensure that the service life of the lamp tube is more than 5 years on the premise of ensuring the sterilization rate, the stroboscopic frequency of the pulse flashing is 1-2 Hz.

Compared with the prior art, the invention has the advantages that: through set up the degassing unit that can produce the pulse flash of light that the wavelength is 200 ~ 1100nm in the cabinet body at the sterilizer, utilize the photochemical reaction of ultraviolet band in the pulse flash of light, flash of light thermal effect and pulse effect to disinfect to the disinfection chamber, disinfection efficiency is high and effectual.

Drawings

FIG. 1 is a schematic perspective view of a disinfection cabinet according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of the drawer of FIG. 1;

fig. 3 is a schematic three-dimensional structure view (with the notch in a closed state) of the xenon lamp tube, the first lamp holder and the second lamp holder in the embodiment of the present invention;

FIG. 4 is a longitudinal cross-sectional view of FIG. 3;

FIG. 5 is an enlarged view of portion I of FIG. 4;

FIG. 6 is an enlarged view of section II of FIG. 4;

fig. 7 is a schematic perspective view of the xenon lamp tube, the first lamp holder and the second lamp holder according to the embodiment of the present invention (the notch is in a fully opened state);

FIG. 8 is a schematic circuit diagram of a xenon lamp tube according to an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 8, a preferred embodiment of the disinfection cabinet of the present invention is shown. The disinfection cabinet comprises a cabinet body 1 with a disinfection chamber 11 and a disinfection device arranged in the disinfection chamber 11. Wherein, one on top of the other is provided with two drawers in the disinfection chamber 11, and the degassing unit can produce the pulse flash of light that the wavelength is 200 ~ 1100nm to disinfect to the tableware of placing on the drawer. In this embodiment, the sterilizing device is a xenon lamp tube 2.

The xenon lamp tube 2 mainly comprises a tube body 21 and a trigger wire 22. Specifically, the interior of the tube body 21 is filled with xenon, and the tube body 21 has a positive electrode end and a negative electrode end; the trigger wire 22 is wound around the outer peripheral wall of the tubular body 21, and has an outlet end.

Unlike the existing common ultraviolet lamp and other germicidal lamp, in the embodiment, the tube body 21 of the xenon lamp tube 2 is made of quartz glass, and the xenon lamp tube using hard glass as the discharge tube generally has poor temperature impact resistance, low single input energy and low use repetition frequency. The sealing between the tube body 21 and the electrodes at two ends adopts a high-temperature tungsten quartz diffusion sealing process, the xenon lamp tube 2 manufactured by the process has stable and reliable performance, the sealing part can bear the high temperature of 600-800 ℃ to avoid the explosion of the tube, the tube wall load can reach 10-15W/cm 2 in a natural cooling state, and the tube wall load can reach 40W/cm2 in a forced air cooling condition. The xenon lamp tube 2 is filled with rare gas xenon lamp, which is not like the common ultraviolet sterilizing lamp tube and the broadband light wave sterilizing lamp tube which are filled with mercury, scandium metal halide, sodium metal halide, dibromomethane and other harmful substances, and the phenomena of tableware pollution, even human poisoning and the like can be caused in case of the breakage of the tube body 21. The electrode material is mainly made of tungsten, tantalum, niobium and other rare earth elements through high-temperature powder metallurgy, and the service life of the pulse stroboscopic can reach about 1 million times.

Referring to fig. 8, the working principle of the xenon lamp tube 2 is as follows: when the power supply supplies energy to the energy storage capacitor C₁During charging, since the tube 21 is in a high-resistance state before breakdown, all current flows into the energy storage capacitor C₁When the energy storage capacitor C₁When the voltage reaches a certain value, a pulse high voltage (the trigger voltage is generally 3-20 kV) is applied to the trigger wire 22 through the trigger circuit, so that the tube body 21 is broken down to discharge. Xenon in the tube body 21 is pre-ionized, the resistance of the tube body 21 is rapidly reduced, and the energy storage capacitor C₁The energy in the medium-voltage capacitor begins to be released to the two-pole channel of the tube body 21, and the energy storage capacitor C is arranged in a few milliseconds₁The stored energy can be released completely, the discharge end tube body 21 recovers the high resistance state, and the energy storage capacitor C₁The charging is started again, and the pulse discharge light emission is formed by repeating the above steps.

However, in order to overcome the above problems, the tube cover 23 is sleeved on the outer periphery of the tube body 21 through the porcelain heads 232 at both ends, an interlayer 231 is formed between the inner peripheral wall of the tube cover 23 and the outer peripheral wall of the tube body 21, the trigger wire 22 is accommodated in the interlayer 231, and the tube cover 23 allows the pulse flash to pass through, and the inside of the interlayer 231 is evacuated. In this embodiment, the tube cover 23 is made of violet-transmitting quartz glass, and the arrangement of the tube cover 23 plays two roles: on one hand, the risk that an appliance or a human body in the disinfection cavity 11 contacts a high voltage on the trigger wire 22 when the disinfection cabinet is electrified and the xenon lamp works can be effectively prevented; on the other hand, the noise is generated by the arc discharge during the two-stage discharge of the xenon lamp tube 2, and the tube cover 23 can effectively eliminate or reduce the discharge noise.

The xenon lamp tube 2 is different from a common ultraviolet sterilizing lamp tube, the xenon lamp tube 2 needs three conductive leads, and the common ultraviolet lamp tube only needs two positive and negative leads. To the xenon lamp fluorescent tube on the current market, the positive terminal of body 21, the lead-out terminal of negative pole end and trigger wire 22 all adopt the wire to draw forth, if directly apply it to the sterilizer on, need adopt the sheet metal in the sterilizer inside, the lead wire need punch on the sheet metal so that insert on the power strip, the metal edge sharpness that punches like this has the risk of incising wire insulating layer electric leakage, and secondly this kind of form fluorescent tube is used and is extremely inconvenient on the sterilizer product dismouting.

In order to facilitate the assembly and disassembly of the xenon lamp tube 2, in this embodiment, two ends of the xenon lamp tube 2 are respectively installed at the middle position of the rear side wall inside the cabinet body 1 through the first lamp holder 3 and the second lamp holder 4.

The xenon lamp tube 2 further comprises a first conductive member 24, a second conductive member 25 and a third conductive member 26, specifically, the first conductive member 24 is cylindrical and is protruded at the first end of the tube body 21 and is electrically connected with the positive terminal of the tube body 21, the second conductive member 25 is annular and is arranged on the outer peripheral wall of the tube body 21 close to the first end and is electrically connected with the leading-out terminal of the trigger wire 22, the voltage of the second conductive member 25 led out by the trigger wire 22 is up to several thousands of volts when the second conductive member works normally, the second conductive member 25 is arranged at the periphery of the tube body 21 instead of being arranged on the same plane with the terminal electrode, the creepage distance can be increased to protect the lamp tube from normal operation, and the third conductive member 26 is L-shaped and is protruded at the second end of the tube body 21 and is electrically connected with the negative terminal of the.

A first socket 31 for inserting the first end of the tube body 21 is formed on the side wall of the first lamp holder 3, a first contact piece 32 and a second contact piece 33 are arranged in the first socket 31, the first contact piece 32 is cylindrical and is connected with the anode of an external power supply through a lead, the first conductive piece 24 is inserted in the first contact piece 32, and the outer wall of the first conductive piece 24 is abutted against the inner wall of the first contact piece 32, so that the first contact piece 32 is electrically connected with the first conductive piece 24; the second contact piece 33 is ring-shaped and can be slidably sleeved on the tube body 21, the first socket 31 is further provided with a first spring 34 connected with the second conductive piece 25, the first spring 34 is sleeved on the tube body 21, two ends of the first spring 34 respectively act between the bottom surface of the first socket 31 and the end surface of the second contact piece 33, and the other end surface of the second contact piece 33 can always keep a trend of abutting against the second conductive piece 25, so that the second contact piece 33 is electrically connected with the second conductive piece 25, the first spring 34 is made of conductive material, and the left end of the first spring is connected with an external high-voltage power supply through a lead.

The side wall of the second lamp holder 4 is provided with a second socket 41 for the third conductive member 26 to be inserted into, the second socket 41 is L-shaped, the inner wall of the second lamp holder is provided with a third contact piece 42, the third contact piece 42 is connected with the negative electrode of the external power supply through a wire, and the third contact piece 42 abuts against the third conductive member 26, so as to realize the electrical connection between the third contact piece 42 and the third conductive member 26, the front end of the second lamp holder 4 is provided with a notch 43, the third conductive member 26 can enter the second socket 41 through the notch 43, the second lamp holder 4 is further provided with a mounting groove 45, and the mounting groove 45 is provided with a limit component 44 capable of opening and closing the notch 43.

In this embodiment, the position limiting assembly 44 includes a mounting post 441, a position limiting block 442, and a second spring 443. Specifically, the mounting post 441 is provided on a side wall of the mounting groove 45; the limiting block 442 is provided with a slot 4421 into which the end of the mounting post 441 is inserted; the second spring 443 is sleeved on the mounting post 441, and two ends of the second spring 443 respectively act between the side wall of the mounting groove 45 and the limiting block 442, so that the limiting block 442 always tends to close the gap 43.

The xenon lamp tube 2 of the invention is arranged on the cabinet body 1 in the following steps:

(1) in an initial state, the first lamp holder 3 and the second lamp holder 4 are respectively installed on the inner side wall of the cabinet body 1 through fasteners, the first contact piece 32 is connected with the anode of an external power supply through a lead, the left end of the first spring 34 is connected with an external high-voltage power supply through a lead, and the third contact piece 42 is connected with the cathode of the external power supply through a lead;

(2) the first end of the tubular body 21 is inserted in alignment with the first insertion opening 31 of the first socket 3 until the first conductive element 24 is inserted inside the first contact tab 32, while the second contact tab 33 is pressed against the second conductive element 25 by the first spring 34;

(3) the stopper 442 is manually moved to compress the second spring 443 until the notch 43 is completely opened, and then the third conductive member 26 is inserted into the second socket 41 through the notch 43 to electrically connect with the third contact piece 42, as shown in fig. 7;

(4) finally, the stopper 442 is released, which closes the notch 43 under the action of the second spring 443, as shown in fig. 3 to 6, to prevent the second end of the tube 21 from being separated from the second lamp tube 3.

The invention also provides a disinfection method applying the disinfection cabinet, which comprises the following steps: the xenon lamp tube is adopted to generate pulse flash with the wavelength of 200-1100 nm to disinfect the disinfection cavity of the cabinet body.

The xenon lamp tube has extremely high output light intensity, the output spectrum range is 200-1100 nm, the three areas of ultraviolet light, visible light and infrared light are covered, the three areas are similar to sunlight, the dominant wave peak is distributed in the range of 400-700 nm, and the energy change is most obvious during stroboscopic.

The action mechanism of the pulse flash sterilization is the synergistic action of all wave bands in a spectral range, and is mainly embodied in three aspects:

(1) photochemical reaction in ultraviolet band: when the microorganism is irradiated by ultraviolet light in the pulsed intense light spectrum, thymine and cytosine in nucleic acid substances (DNA and RNA) generate photochemical reaction to generate dimers, so that the nucleic acid substances of the microorganism are damaged);

(2) flash heating effect: when per cm²When the peak power of the area reaches more than 1000W, the microorganisms are heated>At 100 ℃, because the flash irradiation time is extremely short, microorganisms can not be cooled normally, so that cell walls are broken and melted to die;

(3) pulse effect: the penetration of the intense pulsed light and the transient high energy mechanical impact damage the cell walls and other cellular components, resulting in bacterial death.

Table 1 shows the relationship between the pulse width of the pulsed flash and the disinfection effect of the disinfection cabinet according to the invention.

Table 1:

as can be seen from Table 1, instead of killing bacteria or viruses only by pulse flashing, research and analysis show that the pulse light sterilization effect and the pulse width are closely set, the pulse width is combined with a disinfection cabinet product, the optimal frequency range of the pulse width is 10-100 us on the premise of ensuring that the EMC test of the complete machine of the product passes, and the pulse width in the range reaches 0.01J/cm at the single pulse energy density²In the above way, a better sterilization and disinfection effect can be achieved.

In addition, the pulse flash disinfection effect is related to the flash energy density and the flash frequency of the pulse flash, and the higher the flash energy density is, the higher the flash frequency is. Table 2 shows the relationship between the frequency of the pulsed flash and the disinfection effect of the disinfection cabinet according to the invention.

Table 2:

as can be seen from table 2, the higher the stroboscopic frequency is, the better the disinfection effect is, but the service life of the lamp tube is reduced. In order to ensure the service life of the lamp tube to be more than 5 years on the premise of ensuring the sterilization rate, the preferred stroboscopic frequency is 1-2 Hz.

Table 3 shows that the strobe frequency was set to 2Hz and the pulse light energy density was 0.2J/cm²Under the condition, after the disinfection cabinet acts on escherichia coli for 5 minutes, the disinfection effect of different parts of the disinfection cabinet is achieved.

Table 3:

wherein, the upper layer and the lower layer refer to two drawers which are positioned at the upper layer and the lower layer in the disinfection cavity, the distribution point of the back plate close to the disinfection cavity is called as the inner part, and the distribution point of the glass close to the box body door is the outer part. As can be seen from Table 3, the disinfection effect can reach more than 4 log values.

Table 4 shows the disinfection effect of the disinfection cabinet of the present invention, in which the ultraviolet-filtering quartz glass tube is sleeved on the outer circumference of the xenon lamp tube and the quartz glass tube is not sleeved, the ultraviolet-filtering quartz glass tube fully covers the xenon lamp light-emitting main body, and the spectrum after filtering ultraviolet light is considered to have only visible light band and infrared band.

Table 4:

as can be seen from table 4: the ultraviolet band in the spectrum band range of the xenon lamp tube only plays a role in assisting disinfection and sterilization.

Table 5 shows the comparison of the disinfection effect of the disinfection cabinet provided with the ultraviolet lamp tube and the disinfection cabinet of the invention under the same experimental conditions, wherein the power of the ultraviolet lamp tube is 20W, and the energy density of the pulse xenon lamp is 0.2J/cm²。

Table 5:

as can be seen from table 5, the pulsed light is more efficient than the ultraviolet light sterilization.

Note: GB 17988-2008 appendix AA, BB, CC are cited as the test method of the sterilization performance.

The disinfection cabinet also comprises a control system, an electromagnetic lock, an exhaust fan and the like which are commonly used in the traditional disinfection cabinet, wherein the control system is mainly controlled by various keys on a control panel. The invention also provides an operation method using the disinfection cabinet, which comprises the following steps:

(1) when a power supply key of a control panel is started, the control system can control the electromagnetic lock to start, and the upper drawer and the lower drawer are locked;

(2) starting a sterilization key of a control panel, wherein the sterilization time is 5-10 minutes, and in the process, a temperature controller in the box monitors the sterilization temperature in the sterilization cavity, the temperature reaches 55 ℃, and a fan is started to reduce the temperature in the sterilization cavity;

(3) after the disinfection is finished, automatically switching or manually starting a drying button of a control panel, wherein the drying time is 10-25 minutes;

(4) after drying is finished, automatically switching a moisture removal program, starting an exhaust fan, and carrying out moisture removal for 5-10 minutes;

(5) and after the moisture removal is finished, closing a power supply key of the control panel.

Claims

1. A disinfection cabinet, comprising a cabinet body (1) with a disinfection cavity (11), characterized in that: the disinfection cavity (11) is internally provided with a disinfection device capable of generating pulse flash with the wavelength of 200-1100 nm.

2. A disinfection cabinet as claimed in claim 1, wherein: the sterilizing device is a xenon lamp tube (2), and the xenon lamp tube (2) comprises

A tube (21) filled with xenon gas and having a positive electrode terminal and a negative electrode terminal; and

and the trigger wire (22) is wound on the outer peripheral wall of the tube body (21) and is provided with a leading-out end.

3. A disinfection cabinet as claimed in claim 2, wherein: the xenon lamp tube (2) also comprises

A tube cover (23) allowing pulse flash to penetrate, which is sleeved on the periphery of the tube body (21), and an interlayer (231) is formed between the inner peripheral wall of the tube cover and the outer peripheral wall of the tube body (21);

the trigger wire (22) is accommodated in the interlayer (231).

4. A disinfection cabinet as claimed in claim 3, wherein: the interior of the interlayer (231) is vacuumized.

5. A disinfection cabinet as claimed in any one of claims 2 to 4, wherein: two ends of the xenon lamp tube (2) are respectively installed on the inner side wall of the cabinet body (1) through a first lamp holder (3) and a second lamp holder (4);

the xenon lamp tube (2) also comprises

The first conductive piece (24) is arranged at the first end of the tube body (21) and is electrically connected with the positive end of the tube body (21);

the second conductive piece (25) is arranged on the outer peripheral wall of the tube body (21) close to the first end and is electrically connected with the leading-out end of the trigger wire (22); and

the third conductive piece (26) is arranged at the second end of the tube body (21) and is electrically connected with the negative end of the tube body (21);

a first socket (31) for inserting the first end of the tube body (21) is formed in the side wall of the first lamp holder (3), a first contact piece (32) and a second contact piece (33) are arranged in the first socket (31), the first contact piece (32) is connected with the first conductive piece (24), and the second contact piece (33) is connected with the second conductive piece (25);

a second socket (41) for the third conductive member (26) to be inserted is formed in the side wall of the second lamp holder (4), a third contact piece (42) is arranged in the second socket (41), and the third contact piece (42) is in contact with the third conductive member (26).

6. A disinfection cabinet as claimed in claim 5, wherein: the first contact piece (32) is cylindrical, the first conductive piece (24) is cylindrical and is inserted into the first contact piece (32), and the outer wall of the first conductive piece (24) is abutted against the inner wall of the first contact piece (32).

7. A disinfection cabinet as claimed in claim 5, wherein: the second contact piece (33) is annular and sleeved on the pipe body (21), a first spring (34) is arranged in the first socket (31), the first spring (34) is sleeved on the pipe body (21), two ends of the first spring (34) respectively act between the bottom surface of the first socket (31) and the end surface of the second contact piece (33), and the other end surface of the second contact piece (33) always keeps the trend of abutting against the second conductive piece (25).

8. A disinfection cabinet as claimed in claim 5, wherein: the front end of the second lamp holder (4) is provided with a notch (43) for the third conductive piece (26) to pass through and enter the second socket (41), and the second lamp holder (4) is provided with a limiting component (44) capable of opening and closing the notch (43).

9. A disinfection cabinet as claimed in claim 8, wherein: the second lamp holder (4) is provided with a mounting groove (45) for mounting a limiting component (44), and the limiting component (44) comprises

The mounting column (441) is arranged on the side wall of the mounting groove (45);

a limiting block (442) provided with a slot 4421 into which the end of the mounting post (441) is inserted; and

and the second spring (443) is sleeved on the mounting column (441), and two ends of the second spring respectively act between the side wall of the mounting groove (45) and the limiting block (442), so that the limiting block (442) always keeps a tendency of closing the notch (43).

10. A disinfection method using a disinfection cabinet according to any one of the claims 1-9, characterized in that: the disinfection device is adopted to generate pulse flash with the wavelength of 200-1100 nm to disinfect the disinfection cavity (11) of the cabinet body (1).

11. A sterilization method according to claim 10, characterized in that: the pulse width of the pulse flash is 10-100 us.

12. A sterilization method according to claim 10, characterized in that: the energy density of the pulse flash is more than or equal to 0.01J/cm²。

13. A sterilization method according to claim 10, characterized in that: the stroboscopic frequency of the pulse flashing is 1-2 Hz.