CN110812500A

CN110812500A - Thermal cycle sterilizer

Info

Publication number: CN110812500A
Application number: CN201910871862.4A
Authority: CN
Inventors: 袁柯铭; 黄鹏
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-02-21
Anticipated expiration: 2039-09-16
Also published as: CN110812500B

Abstract

The invention relates to a thermal cycle disinfection cabinet, which comprises a shell and an inner container arranged in the shell, wherein a heat dissipation channel with an exhaust port communicated with the outside is formed above the inner container in the shell, a heating cavity is formed at the bottom of the inner container, and an air duct capable of exchanging heat with the inner container is formed in the shell. Compared with the prior art, the invention can effectively avoid the loss of heat energy generated by the heating device, fully utilize all heat energy generated by heating, improve the heating and disinfecting effect and the heating and drying effect, and simultaneously realize the quick cooling of the inner container.

Description

Thermal cycle sterilizer

Technical Field

The invention relates to the field of disinfection cabinets, in particular to a thermal cycle disinfection cabinet.

Background

With the improvement of living standard, the health consciousness of people is enhanced, and the tableware disinfection cabinet slowly enters the modern kitchen. Heat sterilization is a common sterilization method, which uses hot air to kill microorganisms or eliminate pyrogen. The bottom at the inner bag of sterilizer usually sets up the heating pipe, utilizes the heat radiation's of heating pipe mode with heat transfer to the inner bag in to realize pasteurization, the purpose of fast decomposition ozone, utilize hot-air stoving tableware surface and inner bag simultaneously, make the tableware be in dry environment, and dry environment can effectively prevent the bacterial growth.

In the existing disinfection cabinet, because the heating pipe is arranged at the bottom of the inner container, the top surface of the heating pipe is in direct contact with the bottom surface of the inner container, and other surfaces are exposed in the air holes, the heat efficiency of the heating pipe is greatly reduced, and the serious loss of heat energy is caused. And, because the heating pipe sets up in the bottom of inner bag, the temperature in then inner bag is high-end-up state down to lower more up, and be provided with upper and lower cabinet in the sterilizer generally, can cause the tableware of treating in the upper cabinet to disinfect owing to the heat radiation is not enough and lead to the disinfection stoving insufficient like this. In addition, after the heating sterilization is finished, the temperatures of the inner wall of the inner container and the surface of the disinfected tableware are higher, and if the heat is dissipated in a natural cooling mode, the required time is longer.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a thermal cycle disinfection cabinet with uniform heating and high thermal efficiency aiming at the prior art.

The second technical problem to be solved by the invention is to provide a thermal cycle disinfection cabinet with rapid heat dissipation after disinfection in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a thermal cycle sterilizer, includes the shell and sets up the inner bag in the shell, a serial communication port, in the shell in the top of above-mentioned inner bag form have with the outside exhaust port the heat dissipation passageway, the bottom forms the heating chamber and can take place the wind channel of heat exchange with the inner bag, this wind channel sets up at least in one of them one side of left side, right side or dorsal part of inner bag and along the vertical extension of direction of height of inner bag, above-mentioned heating chamber has with the communicating supply-air outlet in external world and has the heating device who installs in the inner bag bottom surface, the air outlet in heating chamber is linked together with the air intake in wind channel, and the air outlet in wind channel is linked together with.

In order to enable the air duct and the inner container to exchange heat well, the side wall of the inner container forms one side wall of the air duct.

Furthermore, in order to enable the air duct and the inner container to exchange heat better, heat exchange fins are embedded on the shared side wall of the inner container and the air duct at intervals along the height direction.

Preferably, a circulating fan is arranged at the lower part of the inner container, an air pipe extending along the height direction is arranged on the inner side surface of the inner container, an upper vent and a lower vent are respectively arranged at the upper end and the lower end of the air pipe, and an air outlet of the circulating fan is in fluid communication with the lower vent. The rapid internal circulation of the airflow in the inner container can be realized through the circulating fan.

Preferably, the lower part of the inner cavity of the inner container is provided with a circulating fan, the inner side surface of the inner container is covered with a fan cover extending along the height direction of the inner container, the corresponding inner side surfaces of the fan cover and the inner container form an air pipe, each heat exchange fin is positioned in the air pipe, the upper end and the lower end of the air pipe are respectively provided with an upper vent and a lower vent, and the air outlet of the circulating fan is in fluid communication with the lower vent.

The heat dissipation channel, the heating cavity and the air duct can be realized in various ways, wherein one preferable way is as follows: gaps are reserved between the top wall of the inner container and the top plate of the shell from top to bottom, the gaps and the upper ends of the side plates of the shell form the heat dissipation channel, gaps are reserved between the bottom wall of the inner container and the bottom plate of the shell from top to bottom, the gaps and the lower ends of the side plates of the shell form the heating cavity, gaps are reserved between the side walls of the inner container and the side plates of the shell respectively to form the air channels, the lower end openings of the air channels are air inlets of the air channels and air outlets of the heating cavity, and the upper end openings of the air channels are air outlets of the air channels and air inlets of the heat dissipation channel.

Preferably, the adjacent air channels are spaced from each other by a baffle plate extending vertically, so that the air in each air channel can move upwards more smoothly.

Another preferred implementation manner of the heat dissipation channel, the heating cavity, and the air duct is as follows: the top wall of the inner container and the top plate of the shell are vertically provided with gaps to form the heat dissipation channel, the bottom wall of the inner container and the bottom plate of the shell are vertically provided with gaps to form the heating cavity, the side wall of the inner container is inwards sunken along the height direction of the inner container to form a ventilation through groove with an upper opening and a lower opening, the corresponding side plate of the shell is covered on the notch of the ventilation through groove to form the air channel, the lower port of the air channel is the air inlet, and the upper port of the air channel is the air outlet.

Preferably, the air supply outlet of the heating cavity is arranged at the lower end of the front surface of the shell, the air supply outlet extends along the left-right direction, and an air inlet fence is embedded in the air supply outlet.

Preferably, a control lining plate for mounting a control panel is arranged on the front end opening of the heat dissipation channel, the upper end of the control lining plate protrudes above the top surface of the shell, an exhaust cavity extending along the left-right direction is formed at the upper end inside the control lining plate, the top wall of the control lining plate is provided with the exhaust port extending along the length direction of the exhaust cavity and communicated with the exhaust cavity, and an exhaust grid is embedded in the exhaust port. The exhaust can be smoother, the exhaust efficiency is improved, and the discharged hot air can be prevented from remaining in the cabinet (especially under the condition that the discharged air is treated by steam), so that the service life of the cabinet can be prolonged.

Preferably, the inner container is provided with a pull basket for placing articles to be disinfected, and the inner side wall of the air pipe is provided with an exhaust hole at least at the position opposite to the pull basket. The hot air exhausted through the exhaust holes can preheat the articles to be disinfected of the pull basket.

Preferably, the heating device is a heating pipe mounted on the bottom surface of the inner container. Thereby the heating pipe can be used for directly heating the inner container better.

Compared with the prior art, the invention has the advantages that: in the invention, one surface of the heating device, which is contacted with the bottom surface of the inner container, directly heats the inner container in a heat radiation mode, and the other surfaces of the heating device heat the air in the heating cavity. According to the chimney principle, air density difference is generated due to temperature difference after the air is heated, so that an upper pressure difference and a lower pressure difference are formed, and hot air enters the air channel from the heating cavity, vertically moves upwards along the air channel, and finally enters the heat dissipation channel to be discharged outside. Because the air channel can exchange heat with the inner container, the hot air entering the air channel can heat the inner container, and then the heat of the heating device can be fully utilized, thereby effectively avoiding the loss of the heat energy generated by the heating device and fully utilizing all the heat energy generated by heating. Like this through the steam of heating device in to the direct heating of inner bag bottom and the wind channel to the heating of inner bag side, can carry out the intensive heating to the inner bag for treat in the upper and lower drawer basket that the disinfection article homoenergetic is by the intensive heating, promote the heat disinfection effect, and the heating stoving effect. In addition, after the disinfection, heating device stop heating, because the temperature of inner bag still is showing and is higher than the outside air, consequently produces the temperature difference, under the effect of chimney principle, the air current in the wind channel continues from lower to upper motion, therefore the outside cold air gets into heating chamber and wind channel through the supply-air outlet on the heating chamber constantly, gets back to the external world through heat dissipation channel at last, and the cold air can take away the waste heat on the inner bag like this, realizes the quick cooling to the inner bag.

Drawings

FIG. 1 is a schematic view of a part of a sterilizing cabinet according to embodiment 1 of the present invention;

FIG. 2 is another partial schematic structural view of a disinfection cabinet according to embodiment 1 of the present invention;

FIG. 3 is a sectional view of a sterilizing cabinet according to embodiment 1 of the present invention;

FIG. 4 is a schematic view showing the direction of gas flow in example 1 of the present invention;

FIG. 5 is a partial schematic structural view of a sterilizing cabinet in embodiment 2 of the present invention;

FIG. 6 is a sectional view of a sterilizing cabinet in embodiment 2 of the present invention;

FIG. 7 is a schematic view showing the direction of gas flow in example 2 of the present invention;

FIG. 8 is a partial schematic structural view of a sterilizing cabinet in embodiment 3 of the present invention;

FIG. 9 is a sectional view of a sterilizing cabinet according to embodiment 3 of the present invention;

FIG. 10 is a schematic view showing the direction of gas flow in example 3 of the present invention;

Detailed Description

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

Example 1:

as shown in figures 1-4, the thermal cycle disinfection cabinet comprises a square shell 1, wherein the shell 1 is open at the front side, a liner 2 with an open front side is arranged in the shell 1, and an upper pull basket 11 and a lower pull basket 12 are arranged in the liner 2. A heat dissipation channel 3 with an exhaust port 31 communicated with the outside is formed above the inner container 2 in the shell 1, a heating chamber 4 is formed at the bottom, and an air duct 5 capable of exchanging heat with the inner container 2 is formed at the bottom, the air duct 5 is at least arranged at one of the left side, the right side or the back side of the inner container 2 and vertically extends along the height direction of the inner container 2, the heating chamber 4 is provided with an air supply opening 42 communicated with the outside and is provided with a heating device 41 arranged at the bottom surface of the inner container 2, an air outlet of the heating chamber 4 is communicated with an air inlet of the air duct 5, and an air outlet of the air duct 5 is communicated with an air. Thus, one surface of the heating device 41, which is in contact with the bottom surface of the inner container 2, directly heats the inner container 2 through heat radiation, and the other surface of the heating device 41 heats the air in the heating cavity 4. According to the chimney principle, the air density difference is generated due to the temperature difference after the air is heated, so that the upper and lower pressure difference is formed, and the hot air enters the air duct 5 from the heating cavity 4, vertically moves upwards along the air duct 5, and finally enters the heat dissipation channel 3 to be discharged outside. Because the air duct 5 can exchange heat with the inner container 2, the hot air entering the air duct 5 can heat the inner container 2, and then the heat of the heating device 41 can be fully utilized, thereby effectively avoiding the loss of the heat energy generated by the heating device 41 and fully utilizing all the heat energy generated by heating. Like this through the direct heating of heating device 41 to inner bag 2 bottom and the steam in the wind channel 5 to the heating of inner bag 2 side, can carry out the abundant heating to inner bag 2 for the article homoenergetic of treating in upper and

lower drawer basket

11,12 is disinfected by the abundant heating, promotes the heating disinfection effect, and the heating stoving effect. In addition, after the disinfection is finished, the heating device 41 stops heating, and the temperature of the inner container 2 is still obviously higher than that of the external air, so that a temperature difference is generated, and under the action of a chimney principle, the air flow in the air duct 5 continues to move from bottom to top, so that the external cold air continuously enters the heating cavity 4 and the air duct 5 through the air supply opening 42 in the heating cavity 4 and finally returns to the outside through the heat dissipation channel 3, and the cold air can take away the waste heat on the inner container 2, so that the inner container 2 is rapidly cooled. In this embodiment, the heating device 41 is a heating pipe mounted on the bottom surface of the inner container 2.

In order to make the air duct 5 and the inner container 2 exchange heat well, the two share one side wall, that is, the side wall of the inner container 2 forms one side wall of the air duct 5. Further, in order to better exchange heat between the air duct 5 and the inner container 2, heat exchange fins 6 are embedded at intervals along the height direction on the shared side wall of the inner container 2 and the air duct 5, and two ends of each heat exchange fin 6 are respectively exposed out of the air duct 5 and the inner container 2. Therefore, the heat exchanger fins 6 can transfer the heat brought by the hot air in the air duct 5 to the inner container 2, so that the air in the inner container 2 can be better heated. In order to further improve the heating efficiency of the air in the inner container 2, in this embodiment, a fan cover 80 is covered on the inner surface of the inner container 2 at the installation position of the heat exchange fins 6, the fan cover 80 extends along the height direction of the inner container 2 and encloses an air duct 8 with the corresponding inner side surface of the inner container 2, and the upper end and the lower end of the air duct 8 are respectively an upper vent 82 and a lower vent 81. Each heat exchange piece 6 can carry out the concentrated heating to the air in tuber pipe 8 like this, simultaneously because heating device 41 sets up in the bottom of inner bag 2, consequently produces the temperature difference about the air in tuber pipe 8, and then under the effect of chimney effect, the air in tuber pipe 8 forms from lower to upper flow for heat exchange piece 6 can continuously heat the air in inner bag 2. In order to further promote the fluidity of the airflow in the inner container 2, thereby further improving the heating efficiency of the air in the inner container 2, the lower part of the inner cavity of the inner container 2 is provided with a circulating fan 7, and the air outlet of the circulating fan 7 is in fluid communication with the lower vent 81 of the air pipe 8: when the air outlet of the circulating fan 7 is adjacent to the lower vent 81 of the air duct 5, the air outlet and the lower vent can be directly connected; when the distance between the air outlet of the circulating fan 7 and the lower vent 81 of the air duct 5 is relatively long, the air outlet and the lower vent can be connected through a pipeline. In this embodiment, the air outlet of the circulating fan 7 is communicated with the lower vent 81 of the air duct 5 through the ventilation duct 71. Preferably, two exhaust holes 800 are respectively arranged on the inner side wall of the air duct 8, and each exhaust hole 800 corresponds to the upper and

lower pull baskets

11,12, so that the hot air exhausted through the exhaust holes 800 can preheat the objects to be sterilized in the upper and

lower pull baskets

11, 12.

Specifically, in this embodiment, a gap is left between the top wall of the inner container 2 and the top plate of the outer shell 1, the gap and the upper end of each side plate of the outer shell 1 enclose the heat dissipation channel 3, a gap is left between the bottom wall of the inner container 2 and the bottom plate of the outer shell 1, the gap and the lower end of each side plate of the outer shell 1 enclose the heating cavity 4, gaps are respectively left between each side wall of the inner container 2 and the side plate of the outer shell 1 to form the air duct 5, the lower port of each air duct 5 is the air inlet of each air duct 5 and the air outlet of the heating cavity 4, and the upper port of each air duct 5 is the air outlet of each air duct 5 and the air inlet of the heat dissipation channel 3. That is, in the present embodiment, the air ducts 5 are three air ducts 5 on the left side, the air duct 5 on the right side, and the air duct 5 on the rear side, so that the hot air in each air duct 5 can sufficiently heat the inner container 2, and the heating efficiency of the inner container 2 can be further improved. In order to make the air in each air duct 5 move upward more smoothly, it is preferable that each adjacent air duct 5 is spaced from each other by a vertically extending baffle 13, that is, the left air duct 5, the right air duct 5 and the rear air duct 5 are separated from each other. Preferably, in order to form the structures of the air ducts 5 more firmly, in this embodiment, the brackets 14 are respectively interposed between the outer side surfaces of the inner container 2 and the inner surfaces of the side plates of the corresponding housing 1.

In this embodiment, two heat exchange fins 6 are respectively disposed at intervals on the side wall of the liner 2 corresponding to each air duct 5, and correspondingly, two air pipes 8 are also respectively disposed on the inner side surface of each side of the liner 2, and each air pipe 8 respectively corresponds to each heat exchange fin 6. In order to further improve the efficiency of the internal circulation of the air flow in the inner container 2, the circulating fans 7 are three and correspond to the air ducts 5 one by one, one end of each ventilating duct 71 of each circulating fan 7 is connected with the air outlet of the circulating fan 7, the other end of each ventilating duct is branched into two ventilating branches 711, and each ventilating branch 711 is connected with the lower ventilating opening 81 of the corresponding air duct 8.

In addition, in order to make the air exhaust of the disinfection cabinet smoother, in the embodiment, a control lining board 9 for installing a control panel is arranged on the front end opening of the heat dissipation channel 3, the upper end of the control lining board 9 protrudes above the top surface of the housing 1, an air exhaust cavity 90 extending along the left-right direction is formed at the upper end inside the control lining board 9, the top wall of the control lining board 9 is provided with the air exhaust port 31 extending along the length direction of the air exhaust cavity 90 and communicated with the air exhaust cavity 90, and an air exhaust fence 311 is embedded in the air exhaust port 31. Thus, when the disinfection cabinet is embedded in the cabinet, the control lining plate 9 is exposed out of the cabinet, and the air in the heat dissipation channel 3 is directly discharged upwards through the exhaust port 31. The exhaust can be smoother, the exhaust efficiency is improved, and the discharged hot air can be prevented from remaining in the cabinet (especially under the condition that the discharged air carries steam), so that the service life of the cabinet can be prolonged. Further, a blowing port 42 of the heating chamber 4 is provided at a lower end of the front surface of the casing 1, the blowing port 42 extends in the left-right direction, and an air intake grill 43 is fitted into the blowing port 42.

Example 2:

as shown in fig. 1 and 5 to 7, the present embodiment includes a square housing 1, the housing 1 has an open front, a liner 2 having an open front is provided in the housing 1, and upper and

lower baskets

11 and 12 are provided in the liner 2. A heat dissipation channel 3 with an exhaust port 31 communicated with the outside is formed above the inner container 2 in the shell 1, a heating chamber 4 is formed at the bottom, and an air duct 5 capable of exchanging heat with the inner container 2 is formed at the bottom, the air duct 5 is at least arranged at one of the left side, the right side or the back side of the inner container 2 and vertically extends along the height direction of the inner container 2, the heating chamber 4 is provided with an air supply opening 42 communicated with the outside and is provided with a heating device 41 arranged at the bottom surface of the inner container 2, an air outlet of the heating chamber 4 is communicated with an air inlet of the air duct 5, and an air outlet of the air duct 5 is communicated with an air. Thus, one surface of the heating device 41, which is in contact with the bottom surface of the inner container 2, directly heats the inner container 2 through heat radiation, and the other surface of the heating device 41 heats the air in the heating cavity 4. According to the chimney principle, the air density difference is generated due to the temperature difference after the air is heated, so that the upper and lower pressure difference is formed, the hot air enters the air channel 5 from the heating cavity 4, vertically moves upwards along the air channel 5, and finally enters the heat dissipation channel 3 to be discharged outside. Because the air duct 5 can exchange heat with the inner container 2, the hot air entering the air duct 5 can heat the inner container 2, so that the heat of the heating device 41 can be fully utilized, the loss of the heat energy generated by the heating device 41 is effectively avoided, and all the heat energy generated by heating is fully utilized. Like this through the direct heating of heating device 41 to inner bag 2 bottom and the steam in the wind channel 5 to the heating of inner bag 2 side, can carry out the abundant heating to inner bag 2 for the article homoenergetic of treating in upper and

lower drawer basket

In order to make the air duct 5 and the inner container 2 exchange heat well, the two share one side wall, that is, the side wall of the inner container 2 forms one side wall of the air duct 5. Further, in order to better exchange heat between the air duct 5 and the inner container 2, heat exchange fins 6 are embedded at intervals along the height direction on the shared side wall of the inner container 2 and the air duct 5, and two ends of each heat exchange fin 6 are respectively exposed out of the air duct 5 and the inner container 2. Therefore, the heat exchanger fins 6 can transfer the heat brought by the hot air in the air duct 5 to the inner container 2, so that the air in the inner container 2 can be better heated. In this embodiment, the side wall of the inner container 2 is recessed inwards along the height direction thereof to form ventilation through grooves 50 with upper and lower openings, the corresponding side plate of the housing 1 is covered on the notch of the ventilation through groove 50 to form the air duct 5, the lower port of the air duct 5 is the air inlet, the upper port of the air duct 5 is the air outlet, and the heat exchanging fins 6 are respectively disposed in the ventilation through grooves 50. Preferably, each side wall of the inner container 2 is provided with two ventilation through grooves 50, that is, in this embodiment, each side of the inner container 2 is formed with two air channels 5, so as to improve the heating efficiency of the hot air in each air channel 5 to the inner container 2.

In addition, in order to make the air exhaust of the disinfection cabinet smoother, in the embodiment, the heat dissipation channel 3 is enclosed by the upper portion and the top plate of each side plate of the housing 1, a control lining board 9 for installing a control panel is arranged on the front end opening of the heat dissipation channel 3, the upper end of the control lining board 9 protrudes from the top surface of the housing 1, an air exhaust cavity 90 extending along the left-right direction is formed at the upper end inside the control lining board 9, the top wall of the control lining board 9 is provided with the air exhaust port 31 extending along the length direction of the air exhaust cavity 90 and communicated with the air exhaust cavity 90, and the air exhaust port 31 is embedded with an air exhaust fence 311. Thus, when the disinfection cabinet is embedded in the cabinet, the control lining plate 9 is exposed out of the cabinet, and the air in the heat dissipation channel 3 is directly discharged upwards through the exhaust port 31. The exhaust can be smoother, the exhaust efficiency is improved, and the discharged hot air can be prevented from remaining in the cabinet (especially under the condition that the discharged air is treated by steam), so that the service life of the cabinet can be prolonged. Further, a blowing port 42 of the heating chamber 4 is provided at a lower end of the front surface of the casing 1, the blowing port 42 extends in the left-right direction, and an air intake grill 43 is fitted into the blowing port 42.

Example 3:

as shown in figures 1 and 8-10, the thermal cycle disinfection cabinet comprises a square shell 1, wherein the front side of the shell 1 is open, a liner 2 with an open front side is arranged in the shell 1, and an upper pull basket 11 and a lower pull basket 12 are arranged in the liner 2. A heat dissipation channel 3 with an exhaust port 31 communicated with the outside is formed above the inner container 2 in the shell 1, a heating chamber 4 is formed at the bottom, and an air duct 5 capable of exchanging heat with the inner container 2 is formed at the bottom, the air duct 5 is at least arranged at one of the left side, the right side or the back side of the inner container 2 and vertically extends along the height direction of the inner container 2, the heating chamber 4 is provided with an air supply opening 42 communicated with the outside and is provided with a heating device 41 arranged at the bottom surface of the inner container 2, an air outlet of the heating chamber 4 is communicated with an air inlet of the air duct 5, and an air outlet of the air duct 5 is communicated with an air. Thus, one surface of the heating device 41, which is in contact with the bottom surface of the inner container 2, directly heats the inner container 2 through heat radiation, and the other surface of the heating device 41 heats the air in the heating cavity 4. According to the chimney principle, the air density difference is generated due to the temperature difference after the air is heated, so that the upper and lower pressure difference is formed, the hot air enters the air channel 5 from the heating cavity 4, vertically moves upwards along the air channel 5, and finally enters the heat dissipation channel 3 to be discharged outside. Because the air duct 5 can exchange heat with the inner container 2, the hot air entering the air duct 5 can heat the inner container 2, so that the heat of the heating device 41 can be fully utilized, the loss of the heat energy generated by the heating device 41 is effectively avoided, and all the heat energy generated by heating is fully utilized. Like this through the direct heating of heating device 41 to inner bag 2 bottom and the steam in the wind channel 5 to the heating of inner bag 2 side, can carry out the abundant heating to inner bag 2 for the article homoenergetic of treating in upper and

lower drawer basket

11,12 is disinfected by the abundant heating, promotes the heating disinfection effect, and the heating stoving effect. In addition, after the disinfection is finished, the heating device 41 stops heating, and the temperature of the inner container 2 is still obviously higher than that of the external air, so that a temperature difference is generated, and under the action of a chimney principle, the air flow in the air duct 5 continues to move from bottom to top, so that the external cold air continuously enters the heating cavity 4 and the air duct 5 through the air supply opening 42 in the heating cavity 4 and finally returns to the outside through the heat dissipation channel 3, and the cold air can take away the waste heat on the inner container 2, so that the inner container 2 is rapidly cooled. In this embodiment, the instant heating device is a heating pipe mounted on the bottom surface of the inner container 2.

In order to make the air duct 5 and the inner container 2 exchange heat well, the two share one side wall, that is, the side wall of the inner container 2 forms one side wall of the air duct 5. Specifically, in this embodiment, a gap is left between the top wall of the inner container 2 and the top plate of the outer shell 1, the gap and the upper end of each side plate of the outer shell 1 enclose the heat dissipation channel 3, a gap is left between the bottom wall of the inner container 2 and the bottom plate of the outer shell 1, the gap and the lower end of each side plate of the outer shell 1 enclose the heating cavity 4, gaps are respectively left between each side wall of the inner container 2 and the side plate of the outer shell 1 to form the air duct 5, the lower port of each air duct 5 is the air inlet of each air duct 5 and the air outlet of the heating cavity 4, and the upper port of each air duct 5 is the air outlet of each air duct 5 and the air inlet of the heat dissipation channel 3. That is, in the present embodiment, the air ducts 5 are three air ducts 5 on the left side, the air duct 5 on the right side, and the air duct 5 on the rear side, so that the hot air in each air duct 5 can sufficiently heat the inner container 2, and the heating efficiency of the inner container 2 can be further improved. In order to make the air in each air duct 5 move upward more smoothly, it is preferable that each adjacent air duct 5 is spaced from each other by a vertically extending baffle 13, that is, the left air duct 5, the right air duct 5 and the rear air duct 5 are separated from each other. Preferably, in order to form the structures of the air ducts 5 more firmly, in this embodiment, the brackets 14 are respectively interposed between the outer side surfaces of the inner container 2 and the inner surfaces of the side plates of the corresponding housing 1.

A circulating fan 7 is arranged at the lower part of the inner container 2, an air pipe 8 extending along the height direction is arranged on the inner side surface of the inner container 2, an upper vent 82 and a lower vent 81 are respectively arranged at the upper end and the lower end of the air pipe 8, and the air outlet of the circulating fan 7 is in fluid communication with the lower vent 81. In this embodiment, the air duct 8 is formed by covering the fan housing 80 on the inner surface of the inner container 2, and the heating device 41 is disposed at the bottom of the inner container 2, so that a temperature difference is generated between the upper and lower sides of the air in the air duct 8, and the air in the air duct 8 flows from the lower side to the upper side under the action of the chimney effect, thereby promoting the internal circulation of the air flow in the inner container 2. In this embodiment, two air ducts 8 are respectively provided on the inner side surfaces of the respective sides of the inner container 2, thereby further promoting the vertical fluidity of the air in the inner container 2. In order to further improve the efficiency of the internal circulation of the air flow in the inner container 2, the circulating fans 7 are three and correspond to the air pipes 8 one by one, one end of each ventilating duct 71 of each circulating fan 7 is connected with the air outlet of the circulating fan 7, the other end of each ventilating duct is branched into two ventilating branches 711, and each ventilating branch 711 is connected with the lower ventilating opening 81 of the corresponding air pipe 8.

Claims

1. A thermal cycle disinfection cabinet comprises a shell (1) and an inner container (2) arranged in the shell (1), it is characterized in that a heat dissipation channel (3) with an exhaust port (31) communicated with the outside, a heating cavity (4) formed at the bottom and an air duct (5) capable of exchanging heat with the inner container (2) are formed above the inner container (2) in the shell (1), the air duct (5) is at least arranged on one of the left side, the right side or the back side of the inner container (2) and vertically extends along the height direction of the inner container (2), the heating cavity (4) is provided with an air supply outlet (42) communicated with the outside and a heating device (41) arranged on the bottom surface of the inner container (2), the air outlet of the heating cavity (4) is communicated with the air inlet of the air duct (5), and the air outlet of the air duct (5) is communicated with the air inlet of the heat dissipation channel (3).

2. A thermal cycle disinfection cabinet as claimed in claim 1, wherein said side wall of said inner container (2) forms a side wall of said air duct (5).

3. The thermal cycle sterilizer of claim 2, wherein the heat exchange fins (6) are embedded in the common side wall of the inner container (2) and the air duct (5) at intervals along the height direction.

4. The thermal cycle disinfection cabinet of claim 1, wherein a circulating fan (7) is disposed at the lower portion of the inner container (2), an air duct (8) extending in the height direction is disposed on the inner side surface of the inner container (2), the upper end and the lower end of the air duct (8) are respectively an upper vent (82) and a lower vent (81), and the air outlet of the circulating fan (7) is in fluid communication with the lower vent (81).

5. The thermal cycle disinfection cabinet according to claim 3, wherein the lower portion of the inner cavity of the inner container (2) is provided with a circulating fan (7), the inner side surface of the inner container (2) is covered with a fan cover (80) extending along the height direction of the inner container (2), the fan cover (80) and the corresponding inner side surface of the inner container (2) enclose an air duct (8), each heat exchanging fin (6) is located in the air duct (8), the upper end and the lower end of the air duct (8) are respectively an upper vent (82) and a lower vent (81), and the air outlet of the circulating fan (7) is in fluid communication with the lower vent (81).

6. The thermal cycle disinfection cabinet according to any one of claims 1 to 5, wherein a gap is left between the top wall of the inner container (2) and the top plate of the housing (1), the gap and the upper end of each side plate of the housing (1) enclose the heat dissipation channel (3), a gap is left between the bottom wall of the inner container (2) and the bottom plate of the housing (1), the gap and the lower end of each side plate of the housing (1) enclose the heating cavity (4), gaps are respectively left between each side wall of the inner container (2) and the side plate of the housing (1) to form the air channels (5), the lower end openings of the air channels (5) are the air inlets of the air channels (5) and the air outlets of the heating cavity (4), and the upper end openings of the air channels (5) are the air outlets of the air channels (5) and the air inlets of the heat dissipation channel (3).

7. A thermal cycle disinfection cabinet according to claim 6, wherein adjacent air channels (5) are spaced from each other by vertically extending baffles (13).

8. The thermal cycle disinfection cabinet according to any one of claims 1 to 5, wherein a gap is left between the top wall of the inner container (2) and the top plate of the outer shell (1) to form the heat dissipation channel (3), a gap is left between the bottom wall of the inner container (2) and the bottom plate of the outer shell (1) to form the heating cavity (4), the side wall of the inner container (2) is recessed inwards along the height direction to form a ventilation through groove (50) with an upper opening and a lower opening, the corresponding side plate of the outer shell (1) is covered on the notch of the ventilation through groove (50) to form the air duct (5), the lower port of the air duct (5) is the air inlet, and the upper port of the air duct (5) is the air outlet.

9. A thermal cycle disinfection cabinet as claimed in any one of claims 1 to 5, wherein said air supply opening (42) of said heating chamber (4) is provided at the lower end of the front face of said housing (1), said air supply opening (42) extends in the left-right direction and said air supply opening (42) is fitted with an air intake grill (43).

10. The thermal cycle sterilizer as claimed in claim 6, wherein the front opening of the heat dissipating channel (3) is provided with a control lining board (9) for mounting a control panel, the upper end of the control lining board (9) protrudes above the top surface of the housing (1), and the upper end of the inside of the control lining board (9) is formed with an exhaust cavity (90) extending in the left-right direction, the top wall of the control lining board (9) is provided with the exhaust port (31) extending in the length direction of the exhaust cavity (90) and communicating with the exhaust cavity (90), and the exhaust port (31) is embedded with an exhaust fence (311).

11. A thermal cycle disinfection cabinet as claimed in claim 4 or 5, wherein said inner container (2) has a basket for holding the articles to be disinfected, and said air duct (8) has an inner side wall provided with air outlet holes (800) at least at the positions opposite to said basket.

12. A thermal cycle disinfection cabinet as claimed in any one of claims 1 to 5, wherein said heating means (41) is a heating tube mounted on the bottom surface of the inner container (2).