A chafing dish bottom material rapid cooling device

By introducing a refrigeration system and a cooling chamber into the hot pot base cooling device, the problem of slow cooling speed was solved, and rapid solidification and efficient cooling of the hot pot base were achieved.

CN224415473UActive Publication Date: 2026-06-26CHONGQING QINMA FOOD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING QINMA FOOD
Filing Date
2025-07-03
Publication Date
2026-06-26

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Abstract

The utility model discloses a kind of hot pot condiment rapid cooling device, it is related to hot pot condiment processing technical field, and it includes: outer box, the inner side of the outer box is equipped with heat preservation layer, four groups of cooling cavities are arranged in the inner side of heat preservation layer, the inner side of cooling cavity is equipped with inner shell, the front of outer box, heat preservation layer and inner shell is equipped with closure plate.The utility model is equipped with several refrigeration systems by installation, refrigeration system is installed in the inner side of shell, compressor operation exerts pressure to internal coolant, coolant becomes high-temperature high-pressure gas, gas is transmitted to the inside of condenser by connecting pipe, condenser is transmitted to drying filter by connecting pipe, expansion valve transmits refrigerant to the inside of evaporator by connecting pipe, refrigerant is at the inner side one end of evaporator, for emitting cooling, so that cooling cavity internal temperature reduces, evaporator is transmitted back to the inside of compressor by connecting pipe, realize coolant circulation transmission, it is convenient to cool device, realize hot pot condiment rapid solidification.
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Description

Technical Field

[0001] This utility model relates to the field of hot pot base processing technology, specifically a rapid cooling device for hot pot base. Background Technology

[0002] Hot pot is becoming increasingly popular and occupies a larger and larger proportion of people's daily diet. The hot pot base determines the diversity of hot pot dishes. After the hot pot base is produced, it needs to be cooled quickly to accelerate the solidification of the base.

[0003] Patent document CN217929402U discloses a hot pot base cooling rack, which discloses "a hot pot base cooling rack, including a shelf, a cooling tray on the shelf, the cooling tray including an air box and a support plate, the support plate being located above the air box, the support plate having heat dissipation holes, the upper end of the air box having air blowing holes, the bottom of the shelf having a blower, the blower blowing air into the air box through an air supply pipe; the cooling tray is set up to use airflow to cool down the hot pot base and accelerate the airflow speed around the hot pot base;

[0004] The existing cooling system lacks auxiliary refrigeration equipment, resulting in slow cooling speed and low cooling efficiency due to insufficient temperature. Utility Model Content

[0005] The purpose of this utility model is to provide a rapid cooling device for hot pot base, so as to solve the technical problems mentioned in the background art, such as the lack of auxiliary refrigeration equipment inside the cooling device, the slow cooling speed due to insufficient temperature, and the low cooling efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rapid cooling device for hot pot base, comprising: an outer casing, an insulation layer installed on the inner side of the outer casing, four cooling chambers opened on the inner side of the insulation layer, an inner shell installed on the inner side of the cooling chambers, a sealing plate installed on the front of the outer casing, the insulation layer and the inner shell, and a temperature sensor installed on the bottom inner side of the inner shell.

[0007] A shell is installed on the rear wall of the outer casing, and a partition is installed on the inner side of the shell. A refrigeration system is installed on the rear wall of the outer casing. The refrigeration system includes a compressor installed on top of the partition. A condenser is installed at the output end of the compressor via a connecting pipe. The condenser is installed on top of the partition. A support frame is installed on one side of the condenser. A cooling fan is installed through the inner wall of one side of the support frame. A dryer filter is installed on top of the condenser via a connecting pipe. An expansion valve is installed at one end of the dryer filter via a connecting pipe. An evaporator is installed at the front end of the expansion valve via a connecting pipe. The evaporator is installed on the inner rear wall of the inner shell. The output end of the evaporator is connected to the compressor via a connecting pipe.

[0008] Preferably, a hinge is installed on the front of the sealing plate, a sealing door is installed on one side of the hinge, a handle is installed on the front of the sealing door, a positive magnet is installed on the rear wall of the sealing door, and the sealing door abuts against the front of the inner shell.

[0009] Preferably, a negative magnet is installed on the front side of the sealing plate, and the negative magnet is attracted to the positive magnet by magnetic force.

[0010] Preferably, a controller is installed on the top of the outer casing.

[0011] Preferably, a support base is installed on the inner side of the inner shell, and a support rail is movably installed on the top of the support base.

[0012] Preferably, an output port is installed on the rear wall of the housing.

[0013] Preferably, a dustproof net is installed on the rear wall of the housing, and the dustproof net is located behind the outlet.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model incorporates several refrigeration systems installed inside the casing. The compressor pressurizes the internal coolant, transforming it into a high-temperature, high-pressure gas. This gas is then transported to the condenser via connecting pipes. A cooling fan rotates the fan blades, causing rapid airflow. The condenser's internal condenser tubes dissipate heat from the coolant gas, transforming it into a low-temperature, high-pressure gas-liquid mixture. The condenser then transmits this mixture to a drying filter via connecting pipes. The drying filter filters out moisture. An expansion valve, through throttling and flow control, converts the high-temperature, high-pressure liquid refrigerant into a low-temperature, low-pressure mist-like refrigerant. The expansion valve then transmits the refrigerant to the evaporator via connecting pipes. The refrigerant at one end of the evaporator dissipates heat, lowering the temperature inside the cooling chamber. The evaporator then returns the refrigerant to the compressor via connecting pipes, achieving coolant circulation and facilitating cooling of the device, thus enabling rapid solidification of the hot pot base.

[0016] 2. This utility model has a cooling chamber installed, and several cooling chambers are opened on the inner side of the insulation layer. Through multiple sets of cooling chambers, different types of hot pot base can be cooled in batches, thereby improving the work efficiency of the staff. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the shell structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the outer casing structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the condenser structure of this utility model.

[0021] In the diagram: 1. Outer casing; 2. Insulation layer; 3. Inner shell; 4. Support base; 5. Support rail; 6. Temperature sensor; 7. Hinge; 8. Sealed door; 9. Handle; 10. Positive magnet; 11. Negative magnet; 12. Evaporator; 13. Shell; 14. Output port; 15. Dustproof net; 16. Condenser; 17. Compressor; 18. Support frame; 19. Cooling fan; 20. Dryer filter; 21. Expansion valve; 22. Controller. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4A rapid cooling device for hot pot base includes: an outer box 1, an insulation layer 2 installed on the inner side of the outer box 1, four cooling chambers opened on the inner side of the insulation layer 2, an inner shell 3 installed on the inner side of the cooling chambers, a sealing plate installed on the front of the outer box 1, the insulation layer 2 and the inner shell 3, and a temperature sensor 6 installed on the bottom inner side of the inner shell 3.

[0026] Temperature sensor 6 is a PT100 platinum resistance thermometer, model: WZP-035, installed at the bottom center of each inner tank 3, 5mm from the bottom surface, to monitor the actual temperature of the bottom material. Controller 22 uses an STM32F407 microcontroller with a preset PID algorithm: when the temperature sensor reading is greater than the set value + 2℃, compressor 17 is started.

[0027] When the temperature reading is ≤ set value - 1℃, the compressor 17 is turned off;

[0028] The opening degree of expansion valve 21 is adjusted proportionally to the temperature difference; for every 1°C increase in ΔT, the opening degree increases by 5%.

[0029] The support rail 5 is made of stainless steel mesh with a mesh size of 5mm. It achieves efficient heat exchange through thermal radiation and forced convection, allowing cold air to sink.

[0030] The thickness of the ceramic inner liner 3 is optimized to 3mm, with a thermal conductivity of 1.5W / (m·K), and the measured thermal resistance meets the cooling requirement of ≤0.2℃ / W;

[0031] The outer casing 1 is fixed to the inner insulation layer 2 to ensure the stability of the insulation layer 2. The insulation layer 2 is composed of insulation material, which improves the insulation performance of the device and slows down the rate of heat loss. Several cooling chambers are opened on the inner side of the insulation layer 2. Through multiple sets of cooling chambers, different types of hot pot base can be cooled in batches, which improves the work efficiency of the staff. The cooling chambers are opened inside the insulation layer 2 to provide space for the cooling of hot pot base. The inner shell 3 is installed inside the cooling chambers. The inner shell 3 is made of ceramic material to improve the waterproof performance of the device.

[0032] A housing 13 is installed on the rear wall of the outer casing 1. A partition is installed on the inner side of the housing 13. A refrigeration system is installed on the rear wall of the outer casing 1. The refrigeration system includes a compressor 17 installed on top of the partition. A condenser 16 is installed at the output end of the compressor 17 via a connecting pipe. The condenser 16 is installed on top of the partition. A support frame 18 is installed on one side of the condenser 16. A cooling fan 19 is installed through the inner wall of one side of the support frame 18. The cooling fan 19 is an axial fan, model DFB5015, installed facing the air inlet side of the condenser 16, with the airflow direction from front to back penetrating the condenser fins. The condenser 16 has a fin spacing of 2mm and is discharged through the outlet 14. A dryer filter 20 is installed on the top of the condenser 16 through a connecting pipe. An expansion valve 21 is installed on one end of the dryer filter 20 through a connecting pipe. An evaporator 12 is installed on the front end of the expansion valve 21 through a connecting pipe. The evaporator 12 uses four independent copper coils, which are respectively embedded in the rear wall interlayer of the inner shell 3 of the four cooling chambers. A thermally conductive silicone grease layer with a thickness of 0.5mm is filled between the coils and the ceramic wall of the inner shell to enhance heat conduction. The evaporator 12 is installed on the inner rear wall of the inner shell 3. The output end of the evaporator 12 is connected to the compressor 17 through a connecting pipe.

[0033] The outer casing 1 is fixed to the rear wall shell 13 to ensure the stability of the shell 13. The inner side of the shell 13 is fixed to the partition to ensure the stability of the partition. The refrigeration system is installed inside the shell 13. The compressor 17 applies pressure to the internal coolant, turning the coolant into a high-temperature, high-pressure gas. The gas is transferred to the inside of the condenser 16 through the connecting pipe. The cooling fan 19 drives the fan blades to rotate, causing the airflow to move rapidly. The condenser tube inside the condenser 16 dissipates heat from the coolant gas, turning the coolant into a low-temperature, high-pressure gas-liquid mixture. The condenser 16 transfers the coolant to the dryer filter 20 through the connecting pipe. The dryer filter 20 is used to filter moisture. The expansion valve 21 converts the high-temperature, high-pressure liquid refrigerant into a low-temperature, low-pressure mist refrigerant by throttling, reducing pressure, and controlling the flow. The expansion valve 21 transfers the refrigerant to the inside of the evaporator 12 through the connecting pipe. The refrigerant is at one end of the inner side of the evaporator 12 for cooling, which lowers the temperature inside the cooling chamber. The evaporator 12 transfers the coolant back to the inside of the compressor 17 through the connecting pipe, realizing the circulation of coolant and facilitating the cooling of the device.

[0034] Dustproof mesh 15 parameters: 60 mesh stainless steel mesh, detachable clips for fixation, clean once a week;

[0035] The evaporator (12) uses four independent copper coils, which are respectively embedded in the inner shell (3) of the four cooling chambers. The space between the coils and the ceramic wall of the inner shell is filled with a thermally conductive silicone grease layer with a thickness of 0.5 mm to enhance heat conduction.

[0036] The expansion valve (21) outlet is connected to a distributor (a new component, marked 23), which is connected to the four evaporator coil inlets via four capillary tubes (1.5 mm inner diameter).

[0037] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 A hinge 7 is installed on the front of the sealing plate, a sealing door 8 is installed on one side of the hinge 7, a handle 9 is installed on the front of the sealing door 8, a positive magnet 10 is installed on the rear wall of the sealing door 8, the sealing door 8 is against the front of the inner shell 3, and a negative magnet 11 is installed on the front of the sealing plate, the negative magnet 11 is attracted to the positive magnet 10 by magnetic force.

[0038] The front of the sealing plate is fixed to the hinge 7, the hinge 7 is connected to the sealing door 8, the sealing door 8 is against the front of the sealing plate, and the sealing door 8 is fixed to the positive magnet 10 on the rear wall to ensure the stability of the positive magnet 10. The negative magnet 11 is installed on the front of the sealing plate. The negative magnet 11 is attracted to the positive magnet 10 by magnetic force, so that the sealing door 8 is against the front of the cooling chamber to ensure the sealing of the device.

[0039] A silicone sealing strip is added to the edge of the sealed door (8). The silicone sealing strip is placed against the front of the outer box 1 to ensure sealing. When the compression is 30%, it provides a sealing pressure of 0.15MPa. Magnet parameters: neodymium iron boron magnet (N35 grade), size 40×10mm, magnetic attraction force ≥50N, actual sealing leakage rate <0.1L / min.

[0040] A controller 22 is installed on the top of the outer casing 1. The controller 22 controls the operation of the device. The temperature sensor 6 and the controller 22 use mature industrial components.

[0041] Temperature sensor: PT100 platinum resistance thermometer. During installation, apply thermal paste and then thread it into the screw hole at the bottom of the inner liner.

[0042] Controller: STM32F407 + relay module.

[0043] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 A support base 4 is installed on the inner side of the inner shell 3. A support rail 5 is movably installed on the top of the support base 4. The support base 4 is fixed to the inner side of the inner shell 3 to ensure the stability of the support base 4. The support base 4 provides limiting support to the upper support rail 5, which facilitates the support rail 5 to support the upper hot pot base and ensures the stability of the hot pot base.

[0044] An output port 14 is installed on the rear wall of the housing 13, and a dustproof net 15 is installed on the rear wall of the housing 13, with the dustproof net 15 located behind the output port 14.

[0045] The output port 14 is located on the rear wall of the housing 13. The output port 14 guides the airflow transmission, and the dust filter 15 is used to intercept dust.

[0046] Working principle: The outer casing 1 is fixed to the rear wall shell 13 to ensure the stability of the shell 13. The inner side of the shell 13 is fixed to the partition to ensure the stability of the partition. The refrigeration system is installed inside the shell 13. The compressor 17 applies pressure to the internal coolant, turning the coolant into a high-temperature, high-pressure gas. The gas is transferred to the interior of the condenser 16 through the connecting pipe. The cooling fan 19 drives the fan blades to rotate, causing the airflow to move rapidly. The condenser tubes inside the condenser 16 dissipate heat from the coolant gas, turning the coolant into a low-temperature, high-pressure gas-liquid mixture. The condenser 16 then transfers the gas to the dry... The dryer filter 20 is used to filter moisture. The expansion valve 21 converts the high-temperature and high-pressure liquid refrigerant into a low-temperature and low-pressure mist refrigerant by throttling, reducing pressure and controlling flow. The expansion valve 21 transmits the refrigerant to the inside of the evaporator 12 through the connecting pipe. The refrigerant is at one end of the inner side of the evaporator 12 for dissipation and cooling, which lowers the temperature inside the cooling chamber. The evaporator 12 transmits the refrigerant back to the inside of the compressor 17 through the connecting pipe, realizing the circulation of coolant and facilitating the cooling of the device. The user places the hot pot base that needs to be cooled on top of the support rail 5.

[0047] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A rapid cooling device for hot pot base, characterized in that, include: The outer casing (1) has an insulation layer (2) installed on its inner side. The insulation layer (2) has four cooling chambers on its inner side. The inner shell (3) is installed on the inner side of the cooling chambers. The outer casing (1), insulation layer (2) and inner shell (3) have sealing plates installed on their front sides. Temperature sensors (6) are installed on the bottom inner side of the inner shell (3). The outer casing (1) has a shell (13) installed on its rear wall. A partition is installed on the inner side of the shell (13). A refrigeration system is installed on the rear wall of the outer casing (1). The refrigeration system includes a compressor (17) installed on the top of the partition. A condenser (16) is installed at the output end of the compressor (17) through a connecting pipe. The condenser (16) is installed on the top of the partition. A support frame (18) is installed on one side of the condenser (16). A cooling fan (19) is installed through the inner wall of one side of the support frame (18). A dryer filter (20) is installed at the top of the condenser (16) through a connecting pipe. An expansion valve (21) is installed at one end of the dryer filter (20) through a connecting pipe. An evaporator (12) is installed at the front end of the expansion valve (21) through a connecting pipe. The evaporator (12) is installed on the inner rear wall of the inner shell (3). The output end of the evaporator (12) is connected to the compressor (17) through a connecting pipe.

2. The rapid cooling device for hot pot base according to claim 1, characterized in that: A hinge (7) is installed on the front of the sealing plate, a sealing door (8) is installed on one side of the hinge (7), a handle (9) is installed on the front of the sealing door (8), a positive magnet (10) is installed on the rear wall of the sealing door (8), and the sealing door (8) is against the front of the inner shell (3).

3. The rapid cooling device for hot pot base according to claim 2, characterized in that: A negative magnet (11) is installed on the front of the closed plate, and the negative magnet (11) is attracted to the positive magnet (10) by magnetic force.

4. The rapid cooling device for hot pot base according to claim 1, characterized in that: A controller (22) is installed on the top of the outer casing (1).

5. The rapid cooling device for hot pot base according to claim 1, characterized in that: A support base (4) is installed on the inner side of the inner shell (3), and a support rail (5) is movably installed on the top of the support base (4).

6. The rapid cooling device for hot pot base according to claim 1, characterized in that: An output port (14) is installed on the rear wall of the housing (13).

7. A rapid cooling device for hot pot base according to claim 6, characterized in that: A dustproof net (15) is installed on the rear wall of the housing (13), and the dustproof net (15) is located behind the outlet (14).