Refrigerating device

Abstract

The invention discloses a refrigerating device, and belongs to the technical field of electric appliances. Comprising a refrigeration unit, a heat dissipation unit and a box body, the refrigerator body comprises an equipment cavity and a refrigerating chamber, and the equipment cavity and the refrigerating chamber are separated through a partition plate. The refrigeration unit comprises a refrigeration sheet and a cold conduction grid; a mounting hole is formed in the interlayer plate, the refrigerating sheet is mounted in the mounting hole, the cold surface of the refrigerating sheet faces the refrigerating chamber, the hot surface of the refrigerating sheet faces the equipment cavity, and the cold conduction grating is attached to the cold surface of the cold conduction block; the heat dissipation unit is positioned in the equipment cavity, is in contact with the hot surface of the refrigeration sheet and is used for absorbing heat dissipated by the hot surface of the refrigeration sheet; the refrigeration sheet is adopted as a cold source, no refrigerant is needed in the refrigeration process, noise is low in the operation period, and therefore the refrigeration sheet is suitable for a small-size refrigerator; meanwhile, in the refrigerating process, a cold source of the refrigerating sheet emits cold energy into the refrigerating chamber through the cold conduction grid, the heat transfer efficiency between the cold source and the refrigerating chamber is effectively improved, and therefore the technical aim of rapid refrigerating is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical appliances, in particular to a refrigeration device. BACKGROUND

[0002] Traditional refrigerators are large in size, generally limited to household use, and cannot be freely moved. At present, although there are various kinds of vehicle-mounted refrigerators, their functions are relatively simple. When refrigerators are developing towards high-end, small refrigerators can meet the growing consumer demand because they are small in size, light in weight, and can be used alone and can follow consumers to any place to provide the most convenient and efficient service.

[0003] However, the existing refrigeration mode of the refrigerator is generally a compressor refrigeration mode, that is, the refrigerant (such as R600a, R134a) is evaporated in the evaporator (refrigerating chamber) to absorb heat, and then condensed in the condenser (back of the refrigerator) to release heat after being compressed by the compressor, and the cycle is realized to achieve refrigeration. However, this mode has two problems: one is that there is a lot of noise, and the other is that it needs to be regularly maintained, and there is also a risk of refrigerant leakage. Therefore, this refrigeration mode cannot be applied in small refrigerators.

[0004] To solve the above problems, the present application provides a refrigeration device which uses a refrigeration sheet as a cold source to solve the technical problem that the existing compressor refrigeration mode cannot be applied in small refrigerators. SUMMARY

[0005] The present application provides a refrigeration device to solve the technical problem that the existing refrigeration mode is not suitable for small refrigerators.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present application is:

[0007] The present application provides a refrigeration device, characterized in that it comprises a refrigeration unit, a heat dissipation unit and a box body.

[0008] The box body comprises an equipment cavity and a refrigerating chamber, and the equipment cavity and the refrigerating chamber are separated by a partition plate.

[0009] The refrigeration unit comprises a refrigeration sheet and a cold guide grid; the partition plate is provided with a mounting hole, the refrigeration sheet is installed in the mounting hole, the cold surface of the refrigeration sheet faces the refrigerating chamber, the hot surface of the refrigeration sheet faces the equipment cavity, and the cold guide grid is arranged in close contact with the cold surface of the cold guide block.

[0010] The heat dissipation unit is located in the equipment cavity and is in contact with the hot surface of the refrigeration sheet to absorb the heat emitted by the hot surface of the refrigeration sheet.

[0011] Further, the partition plate is provided with a heat insulation plate on one side surface of the equipment cavity, and the heat insulation plate is provided with an opening with the same size as the mounting hole.

[0012] Further, the heat dissipation unit comprises a water-cooling heat dissipation system and an air-cooling radiator, the water-cooling heat dissipation system comprises a water-cooling radiator, a water pump, a water storage device and a connecting pipeline, the water-cooling radiator, the water pump and the water storage device are sequentially communicated through the connecting pipeline to form a circulation loop, and the circulation loop is used for circulating a cooling medium.

[0013] Further, the air-cooling radiator is provided with an elastic buckle, and the air-cooling radiator is fixed to the surface of the water-cooling radiator through the elastic buckle.

[0014] Further, the water pump and the water storage device are installed in the equipment cavity.

[0015] Further, the cabinet is provided with a heat dissipation hole for communicating the equipment cavity with the outside, and the air outlet direction of the air-cooling radiator is opposite to the heat dissipation hole.

[0016] Further, the refrigeration chamber is provided with a supporting plate.

[0017] Further, the refrigeration chamber is provided with a lighting lamp at the top end.

[0018] Further, the refrigeration chamber is provided with a temperature sensor and a processor, the temperature sensor is used for monitoring the temperature value in real time, and the processor is used for adjusting the refrigeration efficiency of the refrigeration unit, so as to adjust the temperature in the refrigeration chamber.

[0019] Further, the water storage device is provided with a water level sensor and an alarm.

[0020] Compared with the prior art, the technical scheme disclosed by the application has the following beneficial effects:

[0021] Due to the above scheme, the application uses the refrigeration sheet as a cold source, and does not need refrigerant in the refrigeration process, and the noise is low during operation, so that it is suitable for small volume refrigerators; meanwhile, in the refrigeration process, the cold source of the refrigeration sheet is dissipated to the refrigeration chamber through the cold guide grid, and the heat transfer efficiency between the cold source and the refrigeration chamber is effectively improved, so that the technical target of rapid refrigeration is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below only illustrate some of the embodiments of the present application, and other drawings can be obtained by those of ordinary skill in the art without any creative effort based on these drawings.

[0023] Figure 1 The structure diagram of the refrigeration device in the embodiment of the present application is shown.

[0024] Figure 2 The structure diagram of the refrigeration unit in the embodiment of the present application is shown.

[0025] In the drawings, 1 is a refrigeration unit, 11 is a refrigeration fin, 12 is a cold guide grid, 2 is a heat dissipation unit, 21 is a water-cooled heat dissipation system, 211 is a water-cooled radiator, 212 is a water pump, 213 is a water storage device, 22 is an air-cooled radiator, 3 is a box body, 31 is an equipment cavity, 32 is a refrigeration chamber, 4 is a partition plate, 5 is a heat insulation plate, and 7 is a partition. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without any creative effort fall within the scope of the present application.

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0028] The present application provides a refrigeration device with high temperature regulation efficiency.

[0029] Reference Figure 1 and Figure 2 The present application discloses a refrigeration device, which comprises a refrigeration unit 1, a heat dissipation unit 2 and a box body 3. The box body 3 comprises an equipment cavity 31 and a refrigeration chamber 32, and the equipment cavity 31 is separated from the refrigeration chamber 32 by a partition plate 4. The refrigeration unit 1 comprises a refrigeration fin 11 and a cold guide grid 12. An installation hole is formed in the partition plate 4, and the refrigeration fin 11 is installed in the installation hole. The cold surface of the refrigeration fin 11 faces the refrigeration chamber, and the hot surface of the refrigeration fin 11 faces the equipment cavity. The cold guide grid 12 is arranged in close contact with the cold surface of the refrigeration fin 11. The heat dissipation unit 2 is located in the equipment cavity 31 and is in contact with the hot surface of the refrigeration fin 11 to absorb the heat emitted by the hot surface of the refrigeration fin 11.

[0030] The cooling sheet 11 based on the Peltier effect is used as the cold source of the refrigeration device, and after the power supply is connected to the cooling sheet 11, heat is pumped from one end to the other end, so that the cold face and the hot face of the cooling sheet 11 are formed. By arranging the cold face of the cooling sheet 11 towards the refrigeration chamber, the refrigeration chamber can be cooled, so as to achieve the effect of physical preservation. The partition plate 4 is made of a composite material, and the thickness of the partition plate 4 is greater than the thickness of the cooling sheet 11. The mounting hole formed in the partition plate 4 has the same size as the cooling sheet 11. After the cooling sheet 11 is embedded in the mounting hole, the cooling sheet 11 is fixed by the heat-conducting glue, so as to ensure the installation strength of the cooling sheet 11. The heat dissipation unit 2 is installed in the equipment cavity 31, and is in contact with the hot end of the cooling sheet 11, so as to dissipate heat from the hot end of the cooling sheet 11, so as to ensure the refrigeration efficiency of the cooling sheet 11. Because the partition plate 4 separates the equipment cavity 31 and the refrigeration chamber 32, the air flow between the equipment cavity 31 and the refrigeration chamber 32 is isolated, so as to achieve the effect of temperature insulation.

[0031] The partition plate 4 is provided with a heat insulation plate 5 on one side surface of the equipment cavity 31. The heat insulation plate 5 is provided with an opening hole having the same size as the mounting hole. In the refrigeration process, the end of the cooling sheet 11 far away from the cold source is the heat dissipation end. The heat insulation plate 5 is fully installed on the partition plate 4, and the heat insulation plate 5 is provided with a vacuum layer inside, so that the cold storage area can be kept warm for 6 hours after power-off, which is significantly better than the heat preservation capacity of the prior art. As a further improved scheme, the heat insulation plate 5 is arranged on other inner walls of the refrigeration chamber 32 except the partition plate 4, so as to improve the heat preservation capacity. The cold guide grid 12 is covered with an antibacterial coating on the inner wall of the refrigeration chamber 32, which meets the food safety standards. In addition, the cold face of the cooling sheet 11 and the cold guide grid 12 are matched by using an ultra-precision bonding process, so that the cold energy conduction loss between the cooling sheet 11 and the cold guide grid 12 is less than or equal to 5%. In combination with the heat insulation effect of the heat insulation plate 5, the refrigeration chamber 32 can be uniformly controlled at ±1℃, so as to avoid the problem of local frosting. The refrigeration chamber 32 is provided with a high-precision temperature sensor (±0.1℃) and a PID algorithm processor, so as to adjust the input current of the cooling sheet 11 in real time, and realize accurate temperature control at ±0.5℃ (the prior art is ±2℃). The low-temperature environment automatically switches to the energy-saving mode (power consumption ≤15W), which saves 20% of energy compared with the traditional scheme.

[0032] The heat dissipation unit 2 of this embodiment includes a water-cooled heat dissipation system 21 and an air-cooled radiator 22. The water-cooled heat dissipation system 21 includes a water-cooled radiator 211, a water pump 212, a water reservoir 213 and connecting pipes. The water-cooled radiator 211, the water pump 212 and the water reservoir 213 are connected in sequence through connecting pipes to form a circulation loop. The inside of the circulation loop is used to circulate the cooling medium. The water-cooled radiator 211 is arranged in contact with the hot surface of the refrigeration plate 11. The heat of the refrigeration plate 11 is dissipated through the cooling medium. The air outlet of the air-cooled radiator 22 is directly opposite to the water-cooled radiator 211, which is used to assist the water-cooled heat dissipation. The heat dissipation device 211 dissipates heat; ethylene glycol aqueous solution is used as the cooling medium, and an aluminum fin heat dissipation unit is also provided on the surface of the water-cooled radiator 211. A stainless steel filter is built into the water reservoir 213 to filter out impurities in the cooling medium, prevent pipe blockage, and extend the life of the water-cooled heat dissipation system; the cooling fan of the air-cooled radiator 22 forms a directional airflow through PWM speed regulation (500-3000RPM), which can effectively increase the heat dissipation efficiency of the aluminum fins of the water-cooled radiator 211; the connecting pipes of the water-cooled heat dissipation system 21 use food-grade silicone hoses with a temperature resistance of -40℃ to 120℃.

[0033] In this embodiment, an elastic clip is provided on the air-cooled radiator 22, which is fixed to the surface of the water-cooled radiator 211 through the elastic clip; it can ensure a positive relationship between the radiator fan and the water-cooled radiator 22, thereby improving the airflow efficiency of the water-cooled radiator 22.

[0034] In this embodiment, the water pump 212 and the water reservoir 213 are both installed in the equipment cavity 31, and a heat dissipation hole connecting the equipment cavity 31 with the outside world is also provided on the box body 3, and the air outlet direction of the air-cooled radiator 22 is directly opposite to the heat dissipation hole; as a further optimization scheme, multiple cooling fans can also be installed inside the equipment cavity 31 to improve the air circulation efficiency of the equipment cavity 31, thereby avoiding the situation where the temperature of the equipment cavity 31 is too high.

[0035] In this embodiment, a temperature sensor and a processor are also installed inside the cold storage room 32. Based on the temperature value monitored in real time by the temperature sensor, the processor adjusts the cooling efficiency of the refrigeration unit 1, thereby adjusting the temperature inside the cold storage room 32. A built-in temperature sensor (accuracy ±0.1°C) is used in the cold storage room 32 to collect the temperature of the cold storage room 32 in real time, and the PID algorithm processor adjusts the input current of the refrigeration plate to achieve ±0.5°C precise temperature control. It also supports manual / automatic mode, and automatically switches to energy-saving mode in low temperature environments, reducing power consumption to below 15W.

[0036] The water storage tank 213 of this embodiment is also equipped with a water level sensor and an alarm. The liquid level warning value is 50 mL. Once the liquid level is detected to be lower than 50 mL, the alarm will sound an alarm to remind the operator to disconnect the water pump power supply to prevent dry burning.

[0037] A supporting plate is also installed in the refrigeration chamber 32, and a lighting lamp is installed at the top end of the refrigeration chamber 32; a 5-level supporting plate installation slide rail is installed on the side wall of the refrigeration chamber 32, and the interval is adjusted to 50 mm; by adjusting the installation position of the supporting plate, it is adapted to store different sizes of articles.

[0038] It should be noted that, for those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A refrigeration device, characterized in that: include: Refrigeration unit, cooling unit and cabinet; The box body includes an equipment cavity and a refrigerated compartment, and the equipment cavity and the refrigerated compartment are separated by an interlayer board; The refrigeration unit includes a refrigeration fin and a cooling grille; a mounting hole is provided on the interlayer plate, and the refrigeration fin is mounted in the mounting hole, with the cold surface of the refrigeration fin facing the refrigeration chamber and the hot surface of the refrigeration fin facing the equipment cavity, and the cooling grille is arranged in contact with the cold surface of the cooling block; The heat dissipation unit is located in the equipment cavity and contacts the hot surface of the refrigeration fin to absorb the heat emitted by the hot surface of the refrigeration fin.

2. The refrigeration device according to claim 1, characterized in that A heat insulation board is also provided on one side surface of the partition board located at the equipment cavity, and an opening having the same size as the mounting hole is also opened on the heat insulation board at a position corresponding to the mounting hole.

3. The refrigeration device according to claim 1, wherein: The heat dissipation unit includes a water-cooled heat dissipation system and an air-cooled radiator. The water-cooled heat dissipation system includes a water-cooled radiator, a water pump, a water reservoir and connecting pipes. The water-cooled radiator, the water pump and the water reservoir are connected in sequence through the connecting pipes to form a circulation loop, and the inside of the circulation loop is used to circulate a cooling medium; the water-cooled radiator is arranged to fit the hot surface of the refrigeration plate, and the heat of the refrigeration plate is dissipated through the cooling medium; the air outlet of the air-cooled radiator is facing the water-cooled radiator, and is used to assist the water-cooled radiator in dissipating heat.

4. The refrigeration device according to claim 1, wherein: The air-cooling radiator is provided with an elastic buckle, and the air-cooling radiator is fixed to the surface of the water-cooling radiator through the elastic buckle.

5. The refrigeration device according to claim 1, characterized in that The water pump and the water reservoir are both installed in the equipment cavity.

6. The refrigeration device according to claim 1, characterized in that The box body is also provided with a heat dissipation hole connecting the equipment cavity with the outside world, and the air outlet direction of the air-cooled radiator is directly opposite to the heat dissipation hole.

7. The refrigeration device according to claim 1, characterized in that A supporting plate is also installed in the refrigerating chamber.

8. The refrigeration device according to claim 1, wherein: A lighting lamp is installed on the top of the refrigerating chamber.

9. The refrigeration device according to claim 1, wherein: A temperature sensor and a processor are also installed inside the refrigeration chamber. Based on the temperature value monitored in real time by the temperature sensor, the refrigeration efficiency of the refrigeration unit is adjusted by the processor, thereby adjusting the temperature inside the refrigeration chamber.

10. The refrigeration device according to claim 3, characterized in that The water tank is also equipped with a water level sensor and an alarm.

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