A compensating cooling system and a refrigeration device

Abstract

The utility model relates to refrigeration equipment technical field provides a kind of compensation formula cold supply system, including inner container;Refrigeration unit, including the compressor, condenser, throttling piece, main evaporator and auxiliary refrigeration assembly connected in turn;Auxiliary refrigeration assembly includes auxiliary evaporator;Refrigeration fan, for the cold quantity generated by main evaporator is sent into storage compartment;The side of inner container compressor chamber is equipped with main evaporator and refrigeration fan;Far from the side wall of compressor chamber and is connected with auxiliary evaporator heat exchange. Therefore, the utility model sends in cold air flow from the side of inner container to storage compartment by refrigeration fan;Contact heat exchange is formed between auxiliary evaporator and inner container side wall, and cold quantity is sent to the far side of storage compartment. Through the mode that air flow heat exchange and contact heat exchange are combined, the temperature distribution uniformity in storage compartment is improved, and temperature control accuracy is also improved. The utility model further provides a kind of refrigeration equipment, and the compensation formula cold supply system is had.

Description

Technical Field

[0001] This utility model belongs to the field of refrigeration equipment technology, and in particular relates to a compensating cooling system and refrigeration equipment. Background Technology

[0002] The cooling method is a crucial factor affecting refrigeration performance. As disclosed in Chinese Patent 201910409547.X, existing horizontal freezers typically supply air from one side. However, for large-sized freezers with significant length, the cold airflow is significantly attenuated during transmission, resulting in higher temperatures in areas far from the air supply side. This affects food storage and the temperature uniformity within the storage room.

[0003] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0004] To address the aforementioned shortcomings, this utility model primarily provides a compensating cooling system that solves the technical problems of poor temperature distribution uniformity and low temperature control accuracy in large-scale, single-sided air-supply storage rooms.

[0005] To address the aforementioned problems, this utility model provides a compensating cooling system, comprising: The inner liner has storage compartments; The refrigeration unit includes a compressor, a condenser, a throttling device, a main evaporator, and auxiliary refrigeration components connected in sequence; The auxiliary refrigeration assembly includes an auxiliary flow pipe and an auxiliary return pipe, and at least one auxiliary evaporator is connected between the two; the auxiliary flow pipe is connected to the main evaporator through the main flow pipe; the auxiliary return pipe is connected to the compressor through the main return pipe. A refrigeration fan is used to deliver the cooling energy generated by the main evaporator into the storage room. The inner liner has a recessed press chamber, in which the compressor and condenser are installed; the main evaporator and refrigeration fan are installed on the side of the inner liner with the press chamber; the auxiliary evaporator is connected to the side wall of the inner liner away from the press chamber for heat exchange.

[0006] According to the compensating cooling system of this utility model, the auxiliary refrigeration component further includes a heat-conducting plate connected to the side wall of the inner tank for heat exchange, and the auxiliary evaporator is connected to the heat-conducting plate for heat exchange.

[0007] According to the compensating cooling system of this utility model, the auxiliary evaporator includes multiple parallel medium pipes, which are connected in series sequentially.

[0008] According to the compensating cooling system of this utility model, a main three-way valve is connected between the main flow pipe and the auxiliary flow pipe, and between the main return pipe and the auxiliary return pipe, respectively, and a main short-circuit pipe is connected between the two main three-way valves.

[0009] According to the compensating cooling system of this utility model, the auxiliary refrigeration component includes multiple auxiliary evaporators connected in series, and adjacent auxiliary evaporators are connected by an intermediate pipe.

[0010] According to the compensating cooling system of this utility model, there are two auxiliary evaporators, and the intermediate pipe connects the two auxiliary evaporators; the two auxiliary evaporators are respectively located on two opposite side walls of the inner tank; an auxiliary three-way valve is provided in the auxiliary flow pipe, and the auxiliary three-way valve is connected to the intermediate pipe through an auxiliary short-circuit pipe.

[0011] According to the compensating cooling system of this utility model, there are three auxiliary evaporators, and an auxiliary three-way valve is connected between two adjacent auxiliary evaporators; the two auxiliary three-way valves are respectively connected to the auxiliary return gas pipe through auxiliary short-circuit pipes.

[0012] A refrigeration device having the aforementioned compensating cooling system.

[0013] According to the refrigeration equipment of this utility model, the refrigeration equipment is a horizontal freezer.

[0014] According to the refrigeration equipment of this utility model, the refrigeration equipment is a vertical refrigerator or a vertical freezer; the inner liner is arranged vertically; the main evaporator and the refrigeration fan are installed in the bottom area of ​​the inner liner.

[0015] In summary, the compensating cooling system of this invention delivers cold airflow into the storage chamber from one side of the inner liner via a refrigeration fan; and delivers cooling capacity to the far side of the storage chamber through contact heat exchange between the auxiliary evaporator and the side wall of the inner liner. By combining airflow heat exchange with contact heat exchange, the uniformity of temperature distribution within the storage chamber is improved, as is the accuracy of temperature control. This invention also provides a refrigeration device incorporating the aforementioned compensating cooling system. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the compensating cooling system of this utility model; Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure along line A in the middle; Figure 3 yes Figure 2 Schematic diagram of the structure in direction B; Figure 4 This is a schematic diagram of the working state of the refrigeration unit of this utility model; Figure 5This is a schematic diagram of the working state of the refrigeration unit of this utility model; Figure 6 This is a schematic diagram of the structure of an embodiment of the auxiliary cooling component of this utility model; Figure 7 This is a schematic diagram of the structure of an embodiment of the auxiliary cooling component of this utility model; Figure 8 This is a schematic diagram of the structure of an embodiment of the compensating cooling system of this utility model; In the diagram: 1-Compressor, 11-Condenser, 12-Main Evaporator, 13-Refrigeration Fan, 14-Main Flow Pipe, 15-Main Return Pipe, 16-Main Three-Way Valve, 17-Main Short-Circuit Pipe, 18-Capillary Tube, 19-Filter; 2-Auxiliary Evaporator, 21-Auxiliary Flow Pipe, 22-Auxiliary Return Pipe, 23-Heat Plate, 24-Medium Pipe, 25-Auxiliary Three-Way Valve, 26-Auxiliary Short-Circuit Pipe, 27-Intermediate Pipe; 100-Inner Tank, 101-Compressor Chamber. Detailed Implementation

[0017] See Figure 1 This utility model provides a compensating cooling system, comprising: The inner liner is 100mm and has storage compartments; Combined Figure 4 The refrigeration unit includes a compressor 1, a condenser 11, a throttling device, a main evaporator 12, and an auxiliary refrigeration component connected in sequence. See Figure 2 The auxiliary refrigeration assembly includes an auxiliary flow pipe 21 and an auxiliary return pipe 22, and at least one auxiliary evaporator 2 is connected between them; the auxiliary flow pipe 21 is connected to the main evaporator 12 through the main flow pipe 14; the auxiliary return pipe 22 is connected to the compressor 1 through the main return pipe 15. Refrigeration fan 13 is used to send the cooling capacity generated by the main evaporator 12 into the storage room; The inner liner 100 has a recessed press chamber 101, and the compressor 1 and condenser 11 are installed in the press chamber 101; the main evaporator 12 and the refrigeration fan 13 are installed on the side of the inner liner 100 with the press chamber 101. The auxiliary evaporator 2 is attached to the side wall of the inner liner 100 away from the compressor chamber 101, and a heat exchange connection is formed between the auxiliary evaporator 2 and the side wall of the inner liner 100. Optionally, the outer wall of the auxiliary evaporator 2 forms a contact connection with the side wall of the inner liner 100 to conduct heat. Preferably, the auxiliary evaporator 2 is adhered to the side wall of the inner liner 100 to form a heat exchange connection.

[0018] The refrigerant discharged from the main evaporator 12 enters the auxiliary evaporator 2, where the remaining liquid refrigerant vaporizes, generating cooling energy. This cooling energy is then conducted to the storage compartment through the contact connection between the auxiliary evaporator 2 and the side wall of the inner liner 100. This compensates for the cooling energy in the area of ​​the storage compartment far from the air outlet, thus lowering the temperature in that area.

[0019] The compensating cooling system of this invention delivers cold airflow into the storage room from one side of the inner tank 100 via a cooling fan 13; and delivers cooling capacity to the far side of the storage room through contact heat exchange between the auxiliary evaporator 2 and the side wall of the inner tank 100. By combining airflow heat exchange with contact heat exchange, the uniformity of temperature distribution in the storage room is improved, as well as the accuracy of temperature control.

[0020] As one embodiment, the auxiliary refrigeration component further includes a heat-conducting plate 23 connected to the side wall of the inner liner 100 for heat exchange, and the auxiliary evaporator 2 is connected to the heat-conducting plate 23 for heat exchange; the heat-conducting plate 23 forms a large contact area with the side wall of the inner liner 100 to improve heat transfer efficiency.

[0021] Optionally, the heat-conducting plate 23 of this invention is fixed to the inner liner 100 by adhesive bonding, and the auxiliary evaporator 2 is bonded to the heat-conducting plate 23. After the subsequent foaming process, the insulation layer generates a certain amount of compressive force, which makes the auxiliary evaporator 2, the heat-conducting plate 23 and the inner liner 100 form a tight surface contact, resulting in good thermal conductivity.

[0022] Furthermore, the auxiliary evaporator 2 includes multiple parallel media tubes 24, which are connected in series. The number of media tubes 24 and the gap between two media tubes 24 can be adaptively set according to the requirements for compensating for cooling capacity.

[0023] Optionally, the auxiliary evaporator 2 includes a spiral-shaped medium tube 24; the medium tube 24 is arranged on the heat-conducting plate 23 in a spiral coiled manner to increase the supply density of cooling capacity.

[0024] See Figure 2 and Figure 5 In one embodiment, a main three-way valve 16 is connected between the main flow pipe 14 and the auxiliary flow pipe 21, and between the main return pipe 15 and the auxiliary return pipe 22. A main short-circuit pipe 17 is connected between the two main three-way valves 16. When there are few items in the storage room or the compressor 1 is running at low speed, the two main three-way valves 16 respectively shut off the auxiliary flow pipe 21 and the auxiliary return pipe 22, and open the main short-circuit pipe 17. The refrigerant returns to the compressor 1 directly through the main return pipe 15 without passing through the auxiliary evaporator 2, thus shortening the refrigerant flow path and reducing losses.

[0025] When the refrigeration system has a large cooling demand, the two main three-way valves 16 will shut off the main short-circuit pipe 17 and open the auxiliary flow pipe 21 and the auxiliary return pipe 22, so that the auxiliary evaporator 2 can participate in the cooling.

[0026] See Figure 3 and Figure 6 In one embodiment, the auxiliary refrigeration assembly includes multiple auxiliary evaporators 2 connected in series, with adjacent auxiliary evaporators 2 connected by an intermediate pipe 27; As a preferred embodiment, there are two auxiliary evaporators 2, and the intermediate tube 27 is connected between the two auxiliary evaporators 2; the two auxiliary evaporators 2 are respectively located on two opposite side walls of the inner liner 100; cooling capacity can be supplied from both sides simultaneously, improving the temperature control accuracy and temperature distribution uniformity of the storage compartment.

[0027] Furthermore, the auxiliary flow pipe 21 is equipped with an auxiliary three-way valve 25, which is connected to the intermediate pipe 27 via an auxiliary short-circuit pipe 26; according to the temperature control requirements, the following control can be achieved: With the main short-circuit pipe 17 connected, neither of the two auxiliary evaporators 2 participates in refrigeration. When the main short-circuit pipe 17 is turned off, the auxiliary short-circuit pipe 26 is turned on, and an auxiliary evaporator 2 participates in refrigeration. The main short-circuit pipe 17 is turned off, the auxiliary short-circuit pipe 26 is turned off, and both auxiliary evaporators 2 participate in refrigeration; See Figure 7 As a preferred embodiment, there are three auxiliary evaporators 2, and an auxiliary three-way valve 25 is connected between two adjacent auxiliary evaporators 2; the two auxiliary three-way valves 25 are respectively connected to the auxiliary return gas pipe 22 through auxiliary short-circuit pipes 26; according to the temperature control requirements, the following control can be achieved: With the main short-circuit pipe 17 connected, none of the three auxiliary evaporators 2 participate in refrigeration; The main short-circuit pipe 17 is turned off, the auxiliary short-circuit pipe 26 near the auxiliary flow pipe 21 is turned on, and the auxiliary short-circuit pipe 26 away from the auxiliary flow pipe 21 is turned off; an auxiliary evaporator 2 participates in refrigeration. The main short-circuit pipe 17 is turned off, the auxiliary short-circuit pipe 26 near the auxiliary flow pipe 21 is turned off, and the auxiliary short-circuit pipe 26 away from the auxiliary flow pipe 21 is turned on; the two auxiliary evaporators 2 participate in refrigeration. The main short-circuit pipe 17 is turned off, and both auxiliary short-circuit pipes 26 are turned off; the three auxiliary evaporators 2 participate in refrigeration; Three auxiliary evaporators 2 can be respectively installed on the three side walls of the inner liner 100, and can be turned on according to the temperature control requirements to improve the temperature control accuracy.

[0028] As one embodiment, the throttling element is a capillary tube 18; furthermore, the capillary tube 18 forms a heat exchange connection with the main return gas pipe 15, which promotes the vaporization of the liquid refrigerant remaining in the main return gas pipe 15 and increases the compression ratio; at the same time, it also promotes the liquefaction of the refrigerant in the capillary tube 18 and improves the refrigeration efficiency.

[0029] As one embodiment, a filter 19 is connected between the condenser 11 and the capillary tube 18 to remove residual moisture from the refrigerant.

[0030] This utility model also provides a refrigeration device having the aforementioned compensating cooling system; As one embodiment, the refrigeration equipment is a horizontal freezer; the inner liner 100 is arranged horizontally; the main evaporator 12 and the refrigeration fan 13 are installed on one vertical side of the inner liner 100; Cooling airflow is blown into the storage compartment from the side of the unit, while auxiliary evaporator 2 transfers cooling energy into the storage compartment from an area away from the side of the unit. Suitable for large-capacity, long-length products, such as commercial freezers.

[0031] See Figure 8 As one embodiment, the refrigeration equipment is a vertical refrigerator or a vertical freezer; the inner liner 100 is arranged vertically; the main evaporator 12 and the refrigeration fan 13 are installed in the bottom area of ​​the inner liner 100; Cooling airflow is blown into the storage compartment from the bottom side, and the auxiliary evaporator 2 conducts cold air into the storage compartment from the upper area of ​​the inner liner 100, providing cooling air from both the top and bottom to control the temperature inside the compartment. Compared with existing refrigerators with rear-side airflow, the vertical structure of this utility model releases the volume of the rear-side area, increases the depth of the storage compartment, improves the effective storage volume, and enhances the user experience.

[0032] In summary, this utility model provides a compensating cooling system that uses a refrigeration fan to deliver cold airflow into the storage chamber from one side of the inner liner; and through contact heat exchange between the auxiliary evaporator and the side wall of the inner liner, coolness is delivered to the far side of the storage chamber. By combining airflow heat exchange with contact heat exchange, the uniformity of temperature distribution within the storage chamber is improved, as is the accuracy of temperature control. This utility model also provides a refrigeration device incorporating the aforementioned compensating cooling system.

[0033] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A compensating cooling system, characterized in that, include: The inner liner has storage compartments; The refrigeration unit includes a compressor, a condenser, a throttling device, a main evaporator, and auxiliary refrigeration components connected in sequence; The auxiliary refrigeration assembly includes an auxiliary flow pipe and an auxiliary return pipe, and at least one auxiliary evaporator is connected between the two; the auxiliary flow pipe is connected to the main evaporator through the main flow pipe; the auxiliary return pipe is connected to the compressor through the main return pipe. A refrigeration fan is used to deliver the cooling energy generated by the main evaporator into the storage room. The inner liner has a recessed press chamber, in which the compressor and condenser are installed; the main evaporator and refrigeration fan are installed on the side of the inner liner with the press chamber; the auxiliary evaporator is connected to the side wall of the inner liner away from the press chamber for heat exchange.

2. The compensating cooling system as described in claim 1, characterized in that, The auxiliary refrigeration assembly also includes a heat-conducting plate connected to the side wall of the inner liner for heat exchange, and the auxiliary evaporator is connected to the heat-conducting plate for heat exchange.

3. The compensating cooling system as described in claim 1, characterized in that, The auxiliary evaporator includes multiple parallel media tubes connected in series.

4. The compensating cooling system as described in claim 1, characterized in that, A main three-way valve is connected between the main flow pipe and the auxiliary flow pipe, and between the main return gas pipe and the auxiliary return gas pipe. A main short-circuit pipe is connected between the two main three-way valves.

5. The compensating cooling system as described in claim 4, characterized in that, The auxiliary refrigeration assembly includes multiple auxiliary evaporators connected in series, with adjacent auxiliary evaporators connected by an intermediate pipe.

6. The compensating cooling system as described in claim 5, characterized in that, There are two auxiliary evaporators, and the intermediate pipe connects the two auxiliary evaporators; the two auxiliary evaporators are located on two opposite side walls of the inner tank; an auxiliary three-way valve is provided in the auxiliary flow pipe, and the auxiliary three-way valve is connected to the intermediate pipe through an auxiliary short-circuit pipe.

7. The compensating cooling system as described in claim 5, characterized in that, There are three auxiliary evaporators, and an auxiliary three-way valve is connected between two adjacent auxiliary evaporators; the two auxiliary three-way valves are respectively connected to the auxiliary return gas pipe through auxiliary short-circuit pipes.

8. A refrigeration device, characterized in that, It has a compensating cooling system as described in any one of claims 1 to 7.

9. The refrigeration equipment as described in claim 8, characterized in that, The refrigeration equipment is a horizontal freezer.

10. The refrigeration equipment as described in claim 8, characterized in that, The refrigeration equipment is a vertical refrigerator or a vertical freezer; the inner liner is vertically arranged; the main evaporator and the refrigeration fan are installed on the bottom area of ​​the inner liner.

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