Constant-temperature tableware disinfection cabinet

Abstract

The utility model relates to a constant-temperature tableware disinfection cabinet, in particular to a constant-temperature tableware disinfection cabinet which performs disinfection through internal circulation constant-temperature hot air. The constant-temperature tableware disinfection cabinet comprises a disinfection inner container, the disinfection inner container is provided with an inner cavity forming a disinfection chamber, the disinfection inner container is provided with a hot air heating device and a temperature sensor, the hot air heating device and the temperature sensor are electrically connected with a control module, and the air inlet end and the air outlet end of the hot air heating device are communicated with the disinfection chamber. Air in the disinfection chamber enters the hot air heating device through the air inlet end and is heated to form hot air, the hot air is conveyed into the disinfection chamber through the air outlet end to achieve hot air internal circulation conveying of the disinfection chamber, and the control module controls the hot air heating device to conduct constant-temperature heating according to the temperature of the disinfection chamber. The disinfection cabinet can control the hot air heating device to perform constant-temperature heating according to the temperature of the disinfection chamber, so that the hot air temperature in the disinfection chamber is constant, the control is simple, no disinfection dead angle exists, the disinfection effect is good, the heater workload is low, the service life is prolonged, and the energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of disinfecting electrical appliances, in particular to a constant-temperature tableware disinfecting cabinet. Background Art

[0002] Chinese Patent No. ZL201721320000.5 discloses a fast drying disinfection cabinet, including an inner tank and a heating element, wherein the heating element is located in the inner tank, and an inner circulation system is provided on the inner tank, and the inner circulation system is communicated with the heating element, and the heat generated by the heating element is dissipated into the inner tank cavity through the inner circulation system and circulating hot air is formed in the inner tank; the inner circulation system includes a fan, a fan cover, an inner tank rear plate, an air duct and an electric heating pipe cover, wherein the electric heating pipe cover covers the heating element and is respectively provided with a first air outlet and a second air outlet, and the fan cover covers the inner tank. A fan cavity is formed on the wall of the inner tank, the fan is placed in the fan cavity, and a third air outlet and a fourth air outlet are respectively provided on the fan cavity, the second air outlet is communicated with the third air outlet through the air duct, and the first air outlet and the fourth air outlet are both communicated with the inner tank cavity; the fan cover is fixed on the rear plate of the inner tank, the fan is installed on the fan cover, and the rear plate of the inner tank is provided with the fourth air outlet for sucking the air in the disinfection cabinet cavity into the fan cover; the electric heating pipe cover is provided on the bottom plate of the inner tank, and the heating element is fixedly installed on the bottom plate of the inner tank. In this disinfection cabinet, the electric heating tube cooperates with the internal circulation system to realize the internal circulation of hot air. However, in the traditional hot air internal circulation, the electric heating tube needs to work at high power in the initial stage to heat the internal temperature of the disinfection cabinet to 170 degrees Celsius, and then the heating power of the electric heating tube decreases, so that the internal temperature of the disinfection cabinet drops to 125 degrees Celsius and maintains it for a period of time. Finally, the heating power of the heater gradually decreases until the disinfection work is completed; the traditional disinfection method requires the heating power of the electric heating tube to change frequently, and the change range is large, which makes the control of the electric heating tube difficult and the workload is large, which directly shortens the service life. In addition, the high heating power of the heater in the initial stage of disinfection leads to high energy consumption. Utility Model Content

[0003] The utility model aims to provide a constant temperature tableware disinfection cabinet, which can control the hot air heating device to heat at a constant temperature according to the temperature of the disinfection chamber, so that the hot air temperature in the disinfection chamber is constant, the control is simple, the heater has a low workload, the service life is extended, and the energy consumption is reduced.

[0004] The purpose of the utility model is achieved in this way:

[0005] A constant temperature tableware disinfection cabinet, in particular a constant temperature tableware disinfection cabinet which disinfects by internally circulating constant temperature hot air; the constant temperature tableware disinfection cabinet comprises a disinfection liner, the disinfection liner is provided with an inner cavity forming a disinfection chamber, the disinfection liner is provided with a hot air heating device and a temperature sensor for detecting the temperature of the disinfection chamber, the hot air heating device and the temperature sensor are respectively electrically connected to a control module, the air inlet and the air outlet of the hot air heating device are respectively connected to the disinfection chamber, the air in the disinfection chamber enters the hot air heating device through the air inlet, the air is heated and forms hot air, the hot air is transported to the disinfection chamber through the air outlet, so as to realize the internal circulation of hot air in the disinfection chamber, and the control module controls the hot air heating device to heat at a constant temperature according to the temperature of the disinfection chamber.

[0006] An air outlet grille is provided on one side of the disinfection liner for connecting to the air outlet end of the hot air heating device. A plurality of air guide plates are arranged at intervals on the air outlet grille. Each air guide plate is arranged obliquely in the air outlet grille to form an inclined air outlet between two adjacent air guide plates. The air outlet angle A is 70°-90.

[0007] The air outlet grille is installed upright or inverted on the disinfection inner tank to change the direction of the hot air entering the disinfection chamber by changing the inclination direction of the air outlet.

[0008] The air guide plate has a certain angle, and the air outlet grille is installed in the forward and reverse directions. The wind direction guided by the air guide plate is different, and the wind direction can be adjusted according to the shape and size of the disinfection room.

[0009] A plurality of air guide plates arranged at intervals divide the air outlet grille into a plurality of independently arranged air outlets. The size of the air outlet is adjusted by changing the air outlet angle A between the air guide plates and the air outlet grille, thereby adjusting the air outlet area of ​​the air outlet.

[0010] The disinfection liner includes a side panel, and the air outlet grille is provided with a fixing ear, and the air outlet grille is fixedly mounted on the side panel of the disinfection liner through the fixing ear; the temperature sensor is arranged on the side panel and is close to the air outlet end of the hot air heating device.

[0011] A hot air inlet for connecting to the air inlet end of the hot air heating device, and a hot air outlet for connecting to the air outlet end of the hot air heating device are provided on one side of the disinfection liner. The hot air inlet, the hot air heating device and the hot air outlet are connected in sequence, and the air outlet grille is arranged on the hot air outlet; the hot air inlet and the hot air outlet are arranged far away from each other.

[0012] The hot air inlet and the hot air outlet of the air outlet grille should maintain a certain distance (depending on the volume of the disinfection chamber), and the minimum distance is 150mm.

[0013] The hot air heating device includes an air guide cover, a heater, and a fan. The wind wheels of the heater and the fan are arranged in the air guide cover, the air suction port of the fan is arranged corresponding to the hot air inlet, and the air outlet of the fan and the air guide cover is arranged corresponding to the air outlet grille; the heater is a heating wire, a heating tube, or a PTC ceramic heater.

[0014] The constant temperature tableware disinfection cabinet also includes a disinfection cabinet door body which opens and closes on the disinfection inner tank. When the disinfection cabinet door body is closed, the disinfection chamber forms a relatively closed disinfection cavity.

[0015] Disinfection principle: The fan draws the air in the disinfection room into the heater in the air guide cover through the air inlet. The high temperature of the heater quickly heats the passing air to above 100 degrees Celsius and below 105 degrees Celsius at a close distance, and sends the heated air back to the disinfection room. In this way, the air in the disinfection room is heated in a cycle. A constant temperature device is used in the disinfection room (the temperature of the hot air in the disinfection room is detected by a temperature sensor. When the hot air temperature is too high, the heating work of the heater is stopped. When the temperature drops to a certain level, the heater resumes work, so that the disinfection room is kept at a certain temperature for heating, so as to perform constant temperature heating and disinfection work). The temperature in the disinfection room is kept constant at above 100 degrees and maintained for more than 15 minutes, killing the germs in the disinfection room. The disinfection effect can kill hepatitis B and polio viruses: more than 99.9%.

[0016] An exhaust pipe is provided on the disinfection liner, the air inlet end of the exhaust pipe is connected to the disinfection chamber, and the air outlet end of the exhaust pipe is connected to the outside world. The disinfection chamber is connected to the outside atmosphere through the exhaust pipe to exhaust excess gas in the disinfection chamber to keep the pressure in the disinfection chamber constant.

[0017] The constant temperature tableware disinfection cabinet also includes an alarm module for indicating that the disinfection cabinet is in abnormal operation, an ultraviolet lamp for ultraviolet disinfection of tableware in the disinfection room, a digital tube temperature display for displaying the disinfection temperature in the disinfection room, a door switch for controlling the opening and closing of the disinfection cabinet door, and input buttons arranged on the control panel of the disinfection cabinet; the hot air heating device, the alarm module, the ultraviolet lamp, the door switch, the digital tube temperature display, and the input buttons are electrically connected to the control module through wiring harnesses and wiring terminals.

[0018] The beneficial effects of the utility model are as follows:

[0019] A temperature sensor is provided on the disinfection liner. The temperature sensor detects the temperature of the circulating hot air and feeds back the temperature value to the control system. The control system then controls the operation of the hot air heating device according to the temperature value to ensure that the circulating hot air temperature in the disinfection room is constant at the set value, avoid large temperature fluctuations that affect the disinfection / drying effect, ensure the disinfection / drying effect, reduce the load on each electrical component under the ultra-high temperature (exceeding the set temperature value) working state, and avoid energy waste. In the disinfection room, the constant temperature mode is used to keep the temperature in the disinfection room at a constant temperature of more than 100 degrees and maintain it for more than 15 minutes to kill the germs in the disinfection room. The disinfection effect can reach more than 99.9% of the hepatitis B and polio viruses. This disinfection cabinet can control the hot air heating device to heat at a constant temperature according to the temperature of the disinfection room, so that the hot air temperature in the disinfection room is constant, the control is simple, the heater workload is low, the service life is extended, and the energy consumption is reduced.

[0020] The structure in which the electric heating tube is provided in the disinfection chamber is eliminated. When the disinfection cabinet door is closed and the disinfection chamber forms a relatively closed disinfection inner cavity, the air in the disinfection chamber enters the hot air heating device through the air inlet end of the hot air internal circulation channel, the air is heated to form hot air, and the hot air is transported to the disinfection chamber through the air outlet end of the hot air internal circulation channel, so as to realize the hot air internal circulation transportation in the disinfection chamber.

[0021] Disinfecting tableware in the tableware disinfection cabinet through a constant temperature system can effectively improve the uniformity of temperature rise in the disinfection space and reduce damage to tableware; the disinfection components are installed in a modular flat-panel style close to the inner tank to improve the safety of disinfection; rapid high-temperature sterilization improves the disinfection effect and provides protection for human health. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a three-dimensional structural schematic diagram of a constant temperature tableware disinfection cabinet according to an embodiment of the utility model, in which a hot air heating device is provided on one side of the disinfection inner tank.

[0023] Figure 2 It is a schematic structural diagram of a hot air heating device according to an embodiment of the utility model.

[0024] Figure 3 This is a schematic diagram of the structure of pulling out the bowl basket of the disinfection liner according to an embodiment of the utility model.

[0025] Figure 4 It is a schematic diagram of the side panel structure of the disinfection liner according to one embodiment of the utility model.

[0026] Figure 5 for Figure 6 Schematic diagram of the cross-sectional structure at BB in the middle.

[0027] Figure 6 It is a schematic structural diagram of an air outlet grille according to an embodiment of the utility model.

[0028] Figure 7 The figure is a schematic diagram of the control system structure of a disinfection cabinet according to an embodiment of the utility model. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0030] See also Figure 1-Figure 7 The present embodiment relates to a constant temperature tableware disinfection cabinet, in particular, a constant temperature tableware disinfection cabinet for disinfecting by internal circulation constant temperature hot air; the constant temperature tableware disinfection cabinet comprises a disinfection liner 1, the disinfection liner 1 is provided with an inner cavity forming a disinfection chamber 2, the disinfection liner 1 is provided with a hot air heating device 3, and a temperature sensor 10 for detecting the temperature of the disinfection chamber 2, the hot air heating device 3 and the temperature sensor 10 are respectively electrically connected to a control module 15, the air inlet end and the air outlet end of the hot air heating device 3 are respectively connected to the disinfection chamber 2, the air in the disinfection chamber 2 enters the hot air heating device 3 through the air inlet end, the air is heated and forms hot air, and the hot air is transported to the disinfection chamber 2 through the air outlet end to realize the internal circulation of hot air in the disinfection chamber 2, and the control module 15 controls the hot air heating device 3 to perform constant temperature heating according to the temperature of the disinfection chamber 2.

[0031] In the disinfection cabinet of this embodiment, a temperature sensor is provided on the disinfection liner. The temperature sensor detects the temperature of the circulating hot air and feeds back the temperature value to the control system. The control system then controls the operation of the hot air heating device according to the temperature value to ensure that the circulating hot air temperature in the disinfection chamber is constant at a set value, avoid large temperature fluctuations that affect the disinfection / drying effect, ensure the disinfection / drying effect, reduce the load on each electrical component under ultra-high temperature (exceeding the set temperature value) working state, and avoid energy waste.

[0032] An air outlet grille 4 for connecting to the air outlet end of the hot air heating device 3 is provided on one side of the disinfection liner 1. A plurality of air guide plates 5 are arranged at intervals on the air outlet grille 4. Each air guide plate 5 is tilted in the air outlet grille 4. An air outlet angle A is formed between the air guide plate 5 and the air outlet grille 4. An inclined air outlet 6 is formed between two adjacent air guide plates 5. The air outlet 6 guides the circulating hot air, thereby guiding the circulating hot air to flow in a specified direction.

[0033] The outlet direction of the hot air delivered to the disinfection chamber 2 can be adjusted by changing the inclination direction of the air guide plate 5 .

[0034] A number of air guide plates 5 arranged at intervals divide the air outlet grille 4 into a number of independently arranged air outlets 6. The size of the air outlet 6 is adjusted by changing the air outlet angle A between the air guide plates 5 and the air outlet grille 4, and then the air outlet area of ​​the air outlet 6 is adjusted. In this embodiment, the air outlet angle A is preferably 80° (or 70°, 75°, 85°, etc.).

[0035] The air outlet grille 4 can be installed on the sterilization inner container 1 in a normal or reverse manner, so as to change the wind direction of the hot air entering the sterilization chamber 2 by changing the inclination direction of the air outlet 6 .

[0036] The disinfection liner 1 includes three side panels 7 which are respectively arranged vertically on the left, right and rear sides. The air outlet grille 4 is provided with fixing ears 8, and the air outlet grille 4 is fixedly mounted on the side panel 7 on the right (or left) side of the disinfection liner 1 through the fixing ears 8.

[0037] In this embodiment, screw holes for inserting screws are provided on the fixing ears 8 of the air outlet grille 4, and the air outlet grille 4 is fixed to the outer side of the side plate 7 on the right side (or left side) of the disinfection liner 1 by screws.

[0038] The temperature sensor 10 is fixedly arranged on the side plate 7 at the rear side and is close to the air outlet end of the hot air heating device 3; the temperature sensor 10 is close to the hot air heating device 3 and can more accurately detect the air outlet temperature of the hot air heating device 3, thereby more accurately controlling the hot air temperature.

[0039] The side panel 7 on the right side (or left side) of the disinfection liner 1 is provided with a hot air inlet 9 for connecting to the air inlet end of the hot air heating device 3, and a hot air outlet for connecting to the air outlet end of the hot air heating device 3. The hot air inlet 9, the hot air heating device 3 and the hot air outlet are connected in sequence, and the air outlet grille 4 is arranged on the hot air outlet; the hot air inlet 9 and the hot air outlet are arranged far away from each other, and the minimum distance is 150mm.

[0040] The hot air heating device 3 includes an air guide cover 11, a heater 12, and a fan 13. The wind wheels of the heater 12 and the fan 13 are arranged in the air guide cover 11, the air intake of the fan 13 is arranged corresponding to the hot air inlet 9, and the air outlet of the fan 13 and the air guide cover 11 is arranged corresponding to the air outlet grille 4; the heater 12 is electrically connected to the control module 15, and the heater 12 is a heating wire, a heating tube, or a PTC ceramic heater, etc.

[0041] In this embodiment, the air guide cover 11 is fixed to the side plate 7 of the disinfection liner 1 by screws, and the air outlet end of the air guide cover 11 is attached to one side of the air outlet grille 4.

[0042] The constant temperature tableware disinfection cabinet further comprises a disinfection cabinet door 14 which opens and closes on the front side of the disinfection inner tank 1. When the disinfection cabinet door 14 is closed, the disinfection chamber 2 forms a relatively closed disinfection cavity to prevent leakage of circulating hot air.

[0043] In this embodiment, exhaust pipes 21 are respectively provided on the left and right outer walls of the disinfection liner 1. The air inlet end of the exhaust pipe 21 is connected to the disinfection chamber 2, and the air outlet end of the exhaust pipe 21 is connected to the outside world. The disinfection chamber 2 is connected to the outside atmosphere through the exhaust pipe 21 to exhaust excess gas in the disinfection chamber 2 to keep the internal pressure of the disinfection chamber 2 constant.

[0044] The constant temperature tableware disinfection cabinet also includes a control module 15, an alarm module 16 for prompting that the disinfection cabinet is in abnormal operation, an ultraviolet lamp 17 for ultraviolet disinfection of tableware in the disinfection chamber 2, a digital tube temperature display meter 19 for displaying the disinfection temperature of the disinfection chamber 2, a door switch 18 for controlling the opening and closing of the disinfection cabinet door 14, and an input button 20 arranged on the control panel of the disinfection cabinet; the hot air heating device 3, the alarm module 16, the ultraviolet lamp 17, the door switch 18, the digital tube temperature display meter 19, and the input button 20 are electrically connected to the control module 15 through a wiring harness and a wiring terminal.

[0045] In this embodiment, the alarm module 16 includes an indicator light and a buzzer. The control module 15 includes a control circuit board and an MCU arranged on the control circuit board.

[0046] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A constant temperature tableware disinfection cabinet, which is a constant temperature tableware disinfection cabinet that disinfects by internal circulation of constant temperature hot air; characterized in that: The constant temperature tableware disinfection cabinet comprises a disinfection inner container (1), the disinfection inner container (1) is provided with an inner cavity forming a disinfection chamber (2), a hot air heating device (3) and a temperature sensor (10) for detecting the temperature of the disinfection chamber (2) are provided on the disinfection inner container (1), the hot air heating device (3) and the temperature sensor (10) are respectively electrically connected to a control module (15), an air inlet end and an air outlet end of the hot air heating device (3) are respectively connected to the disinfection chamber (2), air in the disinfection chamber (2) enters the hot air heating device (3) through the air inlet end, the air is heated to form hot air, and the hot air is transported to the disinfection chamber (2) through the air outlet end, so as to realize the hot air internal circulation transport of the disinfection chamber (2), and the control module (15) controls the hot air heating device (3) to perform constant temperature heating according to the temperature of the disinfection chamber (2); An air outlet grille (4) for connecting to an air outlet end of a hot air heating device (3) is provided on one side of the disinfection inner container (1); a plurality of air guide plates (5) are provided on the air outlet grille (4) at intervals; each air guide plate (5) is obliquely arranged in the air outlet grille (4); an air outlet angle A is formed between the air guide plate (5) and the air outlet grille (4); and an inclined air outlet (6) is formed between two adjacent air guide plates (5); A hot air inlet (9) for communicating with the air inlet end of the hot air heating device (3) and a hot air outlet for communicating with the air outlet end of the hot air heating device (3) are provided on one side of the disinfection inner container (1); the hot air inlet (9), the hot air heating device (3) and the hot air outlet are connected in sequence; and the air outlet grille (4) is arranged on the hot air outlet; the hot air inlet (9) and the hot air outlet are arranged to be spaced apart from each other; The hot air heating device (3) comprises an air guide cover (11), a heater (12), and a fan (13); the wind wheels of the heater (12) and the fan (13) are arranged in the air guide cover (11); the air suction port of the fan (13) is arranged corresponding to the hot air inlet (9); and the air outlet of the fan (13) and the air guide cover (11) is arranged corresponding to the air outlet grille (4); and the heater (12) is a heating wire, a heating tube, or a PTC ceramic heater.

2. The constant temperature tableware disinfection cabinet according to claim 1, characterized in that: The air outlet angle A is 70°-90°.

3. The constant temperature tableware disinfection cabinet according to claim 1, characterized in that: The air outlet grille (4) is mounted upright or inverted on the disinfection inner container (1) to change the direction of hot air entering the disinfection chamber (2) by changing the inclination direction of the air outlet (6).

4. The constant temperature tableware disinfection cabinet according to claim 1, characterized in that: The disinfection inner container (1) comprises a side plate (7), the air outlet grille (4) is provided with a fixing ear (8), and the air outlet grille (4) is fixedly mounted on the side plate (7) of the disinfection inner container (1) via the fixing ear (8); the temperature sensor (10) is arranged on the side plate (7) and is close to the air outlet end of the hot air heating device (3).

5. The constant temperature tableware disinfection cabinet according to claim 1, characterized in that: It also includes a disinfection cabinet door body (14) that opens and closes on the disinfection inner container (1); when the disinfection cabinet door body (14) is closed, the disinfection chamber (2) forms a relatively closed disinfection cavity.

6. The constant temperature tableware disinfection cabinet according to claim 1, characterized in that: An exhaust pipe (21) is provided on the disinfection liner (1); an air inlet end of the exhaust pipe (21) is connected to the disinfection chamber (2), and an air outlet end of the exhaust pipe (21) is connected to the outside.

7. The constant temperature tableware disinfection cabinet according to claim 1, characterized in that: The invention also comprises an alarm module (16) for indicating that the disinfection cabinet is in abnormal operation, an ultraviolet lamp (17) for performing ultraviolet disinfection on tableware in the disinfection chamber (2), a digital tube temperature display (19) for displaying the disinfection temperature of the disinfection chamber (2), a door switch (18) for controlling the opening and closing of the disinfection cabinet door (14), and an input button (20) arranged on a control panel of the disinfection cabinet; the hot air heating device (3), the alarm module (16), the ultraviolet lamp (17), the door switch (18), the digital tube temperature display (19), and the input button (20) are respectively electrically connected to the control module (15) via a wiring harness and a wiring terminal.

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