CN211610856U - Disinfection cabinet - Google Patents

Abstract

The utility model discloses a disinfection cabinet, including shell (1), locate inner bag (2) in shell (1), locate heating element (3) in inner bag (2), locate between shell (1) and inner bag (2) and with inner bag (2) inside circulation ventilation unit (4) that are linked together and locate interior expanding flow pipeline (5) in inner bag (2), wherein, expanding flow pipeline (5) inside being formed with second wind channel (51), the entry and circulation ventilation unit (4) of this second wind channel (51) are linked together, foretell heating element (3) are installed in the exit in second wind channel (51), and expanding flow pipeline (5) have local bore from the entry to export orientation crescent at least. Compared with the prior art, the utility model discloses a sterilizer can make the abundant diffusion of heat and cyclic utilization that the heating source produced.

Description

Disinfection cabinet

Technical Field

The utility model relates to the technical field of kitchen equipment, in particular to a disinfection cabinet.

Background

At present, the disinfection cabinet mainly adopts several disinfection modes of ultraviolet disinfection, heating disinfection and ozone disinfection. For the ultraviolet lamp tube, ultraviolet rays with radiation peak wavelengths of 185nm and 253.7nm can be generally generated, wherein the 185nm ultraviolet rays can change oxygen in air into ozone, the concentration of the ozone in the cabinet is high after disinfection is finished, and the cabinet door can be opened only after the ozone is decomposed. In addition, for the heating pipe, it can heat the air in the cabinet thereby play the effect of drying to the tableware, but the cabinet air mobility is relatively poor, leads to the utilization ratio of hot-air to be lower.

In order to solve the problems, the utility model patent with patent application number CN03228333.4 (with publication number CN2596987Y) discloses a disinfection cabinet with a circulating air duct, which comprises a shell, an inner container, and a circulating ventilation device arranged in the cavity between the shell and the inner container, wherein the circulating ventilation device is communicated with the inner cavity of the inner container at two ends, and comprises a fan, an air duct, an air inlet sleeve and an air outlet sleeve, so that the hot air can be recycled, the utilization rate of energy is improved, and the energy consumption is reduced.

However, in the above-mentioned disinfection cabinet, the hot air is merely circulated between the upper and lower portions of the cabinet, and the heat generated by the heating source cannot be sufficiently diffused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a disinfection cabinet which can fully diffuse and recycle the heat generated by a heating source aiming at the current situation of the prior art.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a disinfection cabinet, which comprises

A housing;

the inner container is arranged in the shell and is provided with a disinfection cavity, an interlayer is formed between the outer wall of the inner container and the inner wall of the shell, and a first flow through hole and a second flow through hole which are communicated with the disinfection cavity and the interlayer are formed;

the circulating ventilation device is arranged in the interlayer, a first air channel is formed in the circulating ventilation device, an inlet of the first air channel is communicated with the first flow through hole, an outlet of the first air channel is communicated with the second flow through hole, and the circulating ventilation device can convey airflow from the first flow through hole to the second flow through hole; and

a heating assembly for heating air flowing through the circulating ventilation device;

the method is characterized in that: also comprises

The flow expansion pipeline arranged in the disinfection cavity is internally provided with a second air channel, the inlet of the second air channel is communicated with the second flow through hole, and at least partial caliber of the flow expansion pipeline is gradually increased from the inlet to the outlet.

In order to directly blow the airflow of the second air duct to the heating source and avoid overhigh temperature of the heating source, the heating assembly is installed at the outlet of the second air duct.

In order to ensure that the airflow of the flow expansion pipeline is concentrated and uniformly blown to the heating pipe, the heating assembly also comprises

Heating a tube;

the two pipe seats are respectively connected to two ends of the heating pipe and are arranged on the bottom wall of the inner container; and

the pipe cover is positioned above the heating pipe, and two ends of the pipe cover are respectively arranged on the two pipe seats;

an accommodating space for accommodating the heating pipe is formed among the pipe cover, the pipe seat and the bottom wall of the inner container, and an outlet of the second air duct is communicated with the accommodating space.

In order to detect whether tableware falls to the heating pipe or not, the heating assembly comprises

And the pressure sensor is clamped between the end part of the tube cover and the tube seat and is used for detecting the pressure applied by the tube cover to the tube seat.

In order for the circulating ventilation device to convey the airflow from the first through hole to the second through hole, the circulating ventilation device comprises a plurality of sequentially connected circulating ventilation devices

The centrifugal fan is provided with an air suction opening and an air outlet, and can suck air flow from the air suction opening and discharge the air flow through the air outlet, wherein the air suction opening of the centrifugal fan is an inlet of the first air channel; and

and the inlet of the communicating pipeline is communicated with the air outlet of the centrifugal fan, and the outlet of the communicating pipeline is the outlet of the first air channel.

In order to accelerate the airflow in the first air duct, at least a part of the aperture of the communication pipeline is gradually reduced from the inlet to the outlet.

In order to detect whether the temperature of the heating assembly is too high, a temperature sensor is arranged in the second air channel and used for detecting the temperature of the air flow in the second air channel.

In order to detect the working state of the ozone generator and confirm whether the ozone is decomposed completely after the disinfection is finished, the ozone generator is arranged in the disinfection cavity, and the first air channel is internally provided with an ozone concentration detection element for detecting the ozone concentration in the first air channel.

In order to avoid the ultraviolet rays from directly irradiating the inner container to cause material aging and detect the working state of the ultraviolet lamp tube, the ultraviolet lamp tube is installed in the first air channel, and an ultraviolet intensity detection element is arranged at a position opposite to the ultraviolet lamp tube and used for detecting the ultraviolet intensity emitted by the ultraviolet lamp tube.

In order to avoid the leakage of hot air flow and the like in the disinfection process and discharge the water vapor generated in the heating process of the disinfection cavity after the disinfection is finished, a third flow through hole communicated with the disinfection cavity and the interlayer is formed in the inner container, and an air outlet communicated with the interlayer and the outside atmosphere is formed in the shell;

the intermediate layer in install the fan of airing exhaust, this fan of airing exhaust has inlet scoop and air exit, can inhale the air current from the inlet scoop and discharge through the air exit, the inlet scoop of the fan of airing exhaust is linked together with the third flow through hole, the air exit of the fan of airing exhaust covers there is the baffle, and this baffle rotates to be connected on the fan of airing exhaust, can overturn under the state that the fan of airing exhaust started to make the air exit of the fan of airing exhaust be linked together with the intermediate layer.

Compared with the prior art, the utility model has the advantages of: the circulating ventilation device with the first air channel is arranged in an interlayer between the shell and the inner container and is communicated with the disinfection cavity of the inner container, the flow expansion pipeline with the second air channel is arranged at the outlet of the first air channel, and the air flow is uniformly blown into the inner container after being diffused by the second air channel, so that the heat generated by the heating source is fully diffused and recycled.

Drawings

FIG. 1 is a schematic perspective view of a disinfection cabinet according to embodiment 1 of the present invention (the rear side wall of the housing is omitted);

fig. 2 is a schematic view of a three-dimensional structure of an inner container, an ultraviolet lamp tube, a heating assembly and a flow expansion channel in embodiment 1 of the disinfection cabinet of the present invention;

FIG. 3 is a schematic exploded perspective view of the disinfection cabinet of embodiment 1 of the present invention;

FIG. 4 is a longitudinal sectional view of embodiment 1 of the disinfection cabinet of the present invention;

FIG. 5 is a schematic perspective view of the disinfection cabinet of embodiment 2 of the present invention (the rear side wall of the housing is omitted);

FIG. 6 is a schematic exploded perspective view of the disinfection cabinet of embodiment 2 of the present invention;

figure 7 is a longitudinal cross-sectional view of embodiment 2 of the disinfection cabinet of the present invention (;

FIG. 8 is a schematic perspective view of the baffle of FIG. 5 after being flipped;

FIG. 9 is a schematic perspective view of the disinfection cabinet of embodiment 3 of the present invention (the rear side wall of the housing is omitted);

figure 10 is a longitudinal sectional view of the disinfection cabinet of embodiment 3 of the invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Example 1:

as shown in fig. 1 to 4, it is a first preferred embodiment of the disinfection cabinet of the present invention. The disinfection cabinet comprises a shell 1, an inner container 2 arranged in the shell 1, an ozone generator arranged in the inner container 2, a heating component 3, a flow expansion channel 5, a circulating ventilation device 4 arranged between the shell 1 and the inner container 2 and an exhaust fan 6.

Wherein, the inner bag 2 has disinfection chamber 21, and is formed with intermediate layer 11 between the outer wall of inner bag 2 and the inner wall of shell 1, sets up the first through-flow hole 22 and the second through-flow hole 23 of intercommunication disinfection chamber 21 and intermediate layer 11 on the inner bag 2, and first through-flow hole 22 and second through-flow hole 23 are located the rear side wall of inner bag 2 one on the other respectively, install air inlet cover 221 in the first through-flow hole 22.

The heating assembly 3 comprises a heating pipe 31, a pipe seat 32, a pipe cover 33 and a pressure sensor 34. Specifically, the heating tube 31 is arranged along the width direction of the sterilization chamber 21; the number of the tube seats 32 is two, the tube seats are respectively connected to two ends of the heating tube 31 and are arranged on the bottom wall of the inner container 2; the pipe cover 33 is located above the heating pipe 31, two ends of the pipe cover 33 are respectively installed on the two pipe seats 32, the edge of the pipe cover 33 located on the front side extends downwards to form an air outlet plate 331, and a plurality of air outlet holes 3311 are formed in the air outlet plate 331; the pressure sensor 34 is interposed between the end of the tube cover 33 and the tube seat 32, and detects the pressure applied to the tube seat 32 by the tube cover 33; an accommodating space 35 for accommodating the heating pipe 31 is formed between the pipe cover 33, the pipe seat 32 and the bottom wall of the inner container 2. In this embodiment, the heating pipe 31 is a quartz heating pipe.

The circulating ventilation device 4 is internally provided with a first air duct 41, the inlet of the first air duct 41 is communicated with the first through flow hole 22, the outlet of the first air duct 41 is communicated with the second through flow hole 23, and the circulating ventilation device 4 can convey the airflow from the first through flow hole 22 to the second through flow hole 23.

In this embodiment, the circulating ventilation device 4 is installed behind the rear side wall of the inner container 2 through the installation plate 46, and the installation plate 46 is provided with a first installation hole 461 and a second installation hole 462 corresponding to the first circulation hole 22 and the second circulation hole 23. The circulating ventilation device 4 comprises a centrifugal fan 42 and a communication pipeline 43 which are connected in sequence, and the internal spaces of the centrifugal fan 42 and the communication pipeline 43 jointly form the first air duct 41. Specifically, the centrifugal fan 42 has an air suction opening and an air exhaust opening, and can suck the air flow from the air suction opening and exhaust the air flow through the air exhaust opening, the air suction opening of the centrifugal fan 42 is an inlet of the first air duct 41, and a first sealing ring 47 is clamped between the air suction opening of the centrifugal fan 42 and the edge of the first flow through hole 22; the inlet of the communicating pipe 43 is communicated with the air outlet of the centrifugal fan 42, and the outlet of the communicating pipe 43 is the outlet of the first air duct 41.

The communication duct 43 includes a straight pipe 431 and a curved pipe 432 connected. Specifically, the straight tube 431 extends in the height direction of the interlayer 11; the bent pipe 432 includes a first pipe portion 4321 positioned at an upper portion and a second pipe portion 4322 positioned at a lower portion, wherein a bore of the first pipe portion 4321 is gradually reduced from top to bottom, and a bore of the second pipe portion 4322 is gradually increased from top to bottom. According to the fluid continuity equation: q is S × V, where Q is the air volume, S is the cross-sectional area, and V is the wind speed. When the air volume is constant, the cross-sectional area is smaller and the air velocity is larger, so that the air flow is accelerated to enter the second pipe portion 4322 after passing through the first pipe portion 4321, and then the air flow is transitionally guided to the second flow through hole 23 through the second pipe portion 4322.

A second air duct 51 is formed inside the diffuser duct 5, an inlet of the second air duct 51 is communicated with the second flow through hole 23, and an outlet of the second air duct 51 is communicated with the accommodating space 35. The diameter of the flow-expanding duct 5 gradually increases from the inlet to the outlet, so that after the airflow enters the flow-expanding duct 5 through the communication duct 43, the gas can uniformly diffuse and flow to the longitudinal direction of the heating pipe 31, and the heat generated (distributed along the longitudinal direction) when the heating pipe 31 is electrified and operated is uniformly blown out from the accommodating space 35. In addition, the side surfaces of the left side and the right side of the flow expansion pipeline 5 are concave arc surfaces, so that the air flow can be buffered in the process of passing through the flow expansion pipeline 5.

The diffuser duct 5 is provided with a temperature sensor 52 extending into the second air duct 51, and is configured to detect the temperature of the air flow in the second air duct 51.

In this embodiment, the ozone generator is an ultraviolet lamp tube 7 which emits ultraviolet rays having a wavelength of 185nm to convert oxygen in the air into ozone, and the ultraviolet lamp tube 7 is disposed on the rear side wall of the inner container 2 in the width direction of the sterilization chamber 21 to emit ultraviolet rays toward the sterilization chamber 21 and generate ozone.

The working principle of the embodiment is as follows:

(1) as shown in fig. 4, the direction indicated by the solid arrow is the airflow direction, when disinfection is required, the heating pipe 31 and the circulating ventilation device 4 are started, the heating pipe 31 starts to heat, the heating causes the difference of gas density, the hot airflow rises to the upper part of the liner, similar to the "chimney effect", the centrifugal fan 42 sucks the airflow at the upper part of the disinfection cavity 21 from the first flow through hole 22, the airflow is blown to the heating pipe 31 after sequentially passing through the communicating straight pipe 431, the bent pipe 432 and the flow diffusion pipe 5, the heat generated by heating is further quickly diffused to each corner of the disinfection cavity 21, sufficient internal circulation in the disinfection cavity 21 is realized, the temperature field at each corner is finally ensured to be uniform, and the tableware drying effect is better;

simultaneously, the ultraviolet lamp tube 7 is started to emit ultraviolet rays to the disinfection cavity 21 and generate ozone;

in addition, when chopsticks or other small tableware or towels and the like fall onto the surface of the pipe cover 33, the pressure sensor 34 can detect that the chopsticks or other small tableware or towels and the like change from a preset value, and then sends a signal to a control system of the disinfection cabinet, and the control system controls the circulating ventilation device 4 to cool or remind a user and the like;

in the heating process, when the temperature sensor 52 detects that the temperature value is not less than the maximum preset value, the surface temperature of the pipe cover 33 is high, which may cause the deformation or local melting of the adjacent tableware, and the temperature sensor 52 may send a signal to the control module of the disinfection cabinet at this time, and the control module controls the circulating ventilation device 4 to cool down.

(2) After the disinfection, close ultraviolet fluorescent tube 7 earlier, ozone in disinfection chamber 21 when near the contact with heating pipe 31 in the inner loop in-process, because the decomposition of ozone can greatly be accelerated to high temperature, consequently can promote the decomposition efficiency of the ozone in the whole inner bag cavity fast, greatly shorten whole operating time.

Example 2:

as shown in fig. 5 to 8, it is a second preferred embodiment of the disinfection cabinet of the present invention. The difference from the embodiment 1 is that:

in the present embodiment, the pressure sensor 34 and the temperature sensor 52 are not provided. The top wall of the inner container 2 is provided with a third through hole 24, an air outlet sleeve 241 is installed in the third through hole 24, the rear side wall of the casing 1 is provided with an air outlet 12 (not shown in the figure) communicating the interlayer 11 with the outside atmosphere, an exhaust fan 6 is installed in the interlayer 11, the exhaust fan 6 is provided with an air suction port and an air outlet, air flow can be sucked from the air suction port and exhausted through the air outlet, the air suction port of the exhaust fan 6 is communicated with the third through hole 24, a second sealing ring 62 is clamped between the air suction port of the exhaust fan 6 and the edge of the third through hole 24, the air outlet of the exhaust fan 6 is covered with a baffle 61, the baffle 61 is rotatably connected to the exhaust fan 6 and can be turned over under the starting state of the exhaust fan 6, so that the air outlet of the exhaust fan 6 is communicated with. In addition, the communication duct 43 is provided with an ozone concentration detecting element 44 that protrudes into the first air duct 41 for detecting the ozone concentration in the first air duct 41. In the present embodiment, the ozone concentration detection element 44 is an ozone sensor.

The working principle of the embodiment is as follows:

(1) as shown in fig. 7, the direction indicated by the solid arrow is the airflow direction, when disinfection is required, the heating pipe 31 and the circulating ventilation device 4 are started, the heat generated by heating the heating pipe 31 ensures that the temperature field at each corner is uniform through the circulating ventilation device 4, and the tableware drying effect is good;

meanwhile, the ultraviolet lamp tube 7 is started to emit ultraviolet rays to the disinfection cavity 21 and generate ozone, the baffle 61 covers the air outlet of the exhaust fan 6 at the moment to avoid ozone leakage, and the ozone concentration detection element 44 can detect the working state of the ultraviolet lamp tube 7 and make a maintenance prompt;

(2) as shown in fig. 7, the direction indicated by the dotted arrow is the steam flow direction, after the disinfection is finished, the ultraviolet lamp tube 7 is closed first, the baffle 61 covers the air outlet of the exhaust fan 6 at this time, the ozone in the disinfection chamber 21 is rapidly decomposed in the inner circulation process, when the ozone concentration value detected by the ozone concentration detecting element 44 is less than or equal to the preset value, it indicates that the ozone is completely decomposed, the exhaust fan 6 is turned on at this time, the baffle 61 is blown up by the wind blown out, and at this time, the steam generated in the heating process of the disinfection chamber 21 can be discharged through the third flow hole 24 and the air outlet 12.

Example 3:

as shown in fig. 9 to 10, it is a third preferred embodiment of the disinfection cabinet of the present invention. The difference from the embodiment 2 is that:

in the present embodiment, the ultraviolet lamp 7 is provided inside the straight pipe 431 in the height direction of the interlayer 11, and the ozone concentration detecting element 44 is replaced with an ultraviolet intensity detecting element 45, and the ultraviolet intensity detecting element 45 is located at a position opposite to the ultraviolet lamp 7 for detecting the intensity of ultraviolet rays emitted from the ultraviolet lamp 7. In the present embodiment, the ultraviolet intensity detecting element 45 is an ultraviolet sensor.

The working principle of the embodiment is as follows:

(1) as shown in fig. 10, the direction indicated by the solid arrow is the airflow direction, when disinfection is required, the heating pipe 31 and the circulating ventilation device 4 are started, the heat generated by heating the heating pipe 31 ensures that the temperature field at each corner is uniform through the circulating ventilation device 4, and the tableware drying effect is good;

meanwhile, the ultraviolet lamp tube 7 is started, ultraviolet rays are emitted to the first air channel 41 to generate ozone, the ozone enters all parts of the disinfection cavity 21 through internal circulation, the baffle 61 covers the air outlet of the exhaust fan 6 at the moment to avoid ozone leakage, and the ultraviolet intensity detection element 45 can detect the working state of the ultraviolet lamp tube 7 and make a maintenance prompt;

(2) as shown in fig. 10, the direction indicated by the dotted arrow is the steam flow direction, after the disinfection is finished, the ultraviolet lamp tube 7 is closed first, the baffle 61 covers the air outlet of the exhaust fan 6 at this time, the ozone in the disinfection chamber 21 is decomposed rapidly in the inner circulation process, when the ozone is decomposed completely, the exhaust fan 6 is opened, the air blown out blows up the baffle 61, and at this time, the steam generated in the heating process of the disinfection chamber 21 can be discharged through the third through hole 24 and the air outlet 12.

Claims (10)

1. A disinfection cabinet, which comprises

A housing (1);

the inner container (2) is arranged in the shell (1) and is provided with a disinfection cavity (21), an interlayer (11) is formed between the outer wall of the inner container (2) and the inner wall of the shell (1), and a first flow through hole (22) and a second flow through hole (23) which are communicated with the disinfection cavity (21) and the interlayer (11) are formed;

the circulating ventilation device (4) is arranged in the interlayer (11), a first air channel (41) is formed inside the circulating ventilation device, the inlet of the first air channel (41) is communicated with the first flow through hole (22), the outlet of the first air channel (41) is communicated with the second flow through hole (23), and the circulating ventilation device (4) can convey airflow from the first flow through hole (22) to the second flow through hole (23); and

a heating assembly (3) for heating the air flowing through the circulating ventilation device (4);

the method is characterized in that: also comprises

The flow expansion pipeline (5) is arranged in the disinfection cavity (21), a second air duct (51) is formed inside the flow expansion pipeline, the inlet of the second air duct (51) is communicated with the second flow through hole (23), and at least partial caliber of the flow expansion pipeline (5) is gradually increased from the inlet to the outlet.

2. A disinfection cabinet as claimed in claim 1, wherein: the heating assembly (3) is arranged at the outlet of the second air duct (51).

3. A disinfection cabinet as claimed in claim 2, wherein: the heating component (3) comprises

A heating pipe (31);

the two pipe seats (32) are respectively connected to two ends of the heating pipe (31) and are arranged on the bottom wall of the inner container (2); and

the pipe cover (33) is positioned above the heating pipe (31), and two ends of the pipe cover are respectively arranged on the two pipe seats (32);

an accommodating space (35) for accommodating the heating pipe (31) is formed among the pipe cover (33), the pipe seat (32) and the bottom wall of the inner container (2), and an outlet of the second air duct (51) is communicated with the accommodating space (35).

4. A disinfection cabinet as claimed in claim 3, wherein: the heating component (3) also comprises

And a pressure sensor (34) interposed between an end of the tube cover (33) and the tube seat (32) and detecting a pressure applied to the tube seat (32) by the tube cover (33).

5. A disinfection cabinet as claimed in claim 1, wherein: the circulating ventilation device (4) comprises a plurality of sequentially connected circulating ventilation devices

The centrifugal fan (42) is provided with an air suction opening and an air outlet, and can suck air flow from the air suction opening and discharge the air flow through the air outlet, and the air suction opening of the centrifugal fan (42) is an inlet of the first air duct (41); and

and the inlet of the communicating pipeline (43) is communicated with the air outlet of the centrifugal fan (42), and the outlet of the communicating pipeline (43) is the outlet of the first air duct (41).

6. A disinfection cabinet as claimed in claim 5, wherein: the aperture of at least part of the communicating pipeline (43) is gradually reduced from the inlet to the outlet.

7. A disinfection cabinet as claimed in claim 1, wherein: and a temperature sensor (52) is arranged in the second air duct (51) and is used for detecting the temperature of the air flow in the second air duct (51).

8. A disinfection cabinet as claimed in claim 1, wherein: an ozone generator is arranged in the disinfection cavity (21), and an ozone concentration detection element (44) is arranged in the first air channel (41) and used for detecting the ozone concentration in the first air channel (41).

9. A disinfection cabinet as claimed in claim 1, wherein: an ultraviolet lamp tube (7) is installed in the first air duct (41), and an ultraviolet intensity detection element (45) is arranged at a position opposite to the ultraviolet lamp tube (7) and used for detecting the ultraviolet intensity emitted by the ultraviolet lamp tube (7).

10. A disinfection cabinet as claimed in any one of claims 1 to 9, wherein: the inner container (2) is provided with a third through hole (24) communicated with the disinfection cavity (21) and the interlayer (11), and the shell (1) is provided with an air outlet (12) communicated with the interlayer (11) and the outside atmosphere;

interlayer (11) in install fan (6) of airing exhaust, this fan (6) of airing exhaust have inlet scoop and air exit, can inhale the air current from the inlet scoop and discharge through the air exit, the inlet scoop of fan (6) of airing exhaust is linked together with third flow hole (24), the air exit of fan (6) of airing exhaust covers has baffle (61), and this baffle (61) rotate to be connected on fan (6) of airing exhaust, can overturn under the state that fan (6) of airing exhaust started to the air exit that the fan (6) of airing exhaust is linked together with interlayer (11).

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