Frequency conversion energy-saving device of refrigerating machine

Abstract

The frequency conversion energy-saving device comprises a refrigerating machine box, an evaporator, a compressor and a condenser are arranged in the refrigerating machine box, the evaporator and the compressor are both fixedly installed on the inner wall of the refrigerating machine box, the air outlet end of the compressor is communicated with a connecting pipe, one side of the connecting pipe is communicated with one end of the condenser, and the other side of the connecting pipe is communicated with the other end of the condenser. The other end of the condenser is communicated with the upper portion of the outer surface of the evaporator, and the top of the evaporator is communicated with an air outlet pipe. According to the variable-frequency energy-saving device of the refrigerating machine, when cold is discharged through the air outlet pipe on the evaporator, part of cold air enters the circulating pipe through the mounting pipe, meanwhile, the condenser is blown through the electric fan, the air can cool the condenser through the circulating pipe, heat dissipation can be well conducted on the condenser, consumption of electric energy of the condenser is effectively reduced, and the service life of the condenser is prolonged. The energy-saving effect is achieved, and the refrigerating efficiency of the refrigerating machine box is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerators, in particular to a frequency conversion energy-saving device for refrigerators. Background Art

[0002] The refrigeration unit is mainly composed of a compressor, a condenser, an expansion valve, an evaporator and a control system. The condenser, as a heat exchanger that circulates cooling through a refrigerant medium, is also an important component in an industrial refrigeration unit and is widely used in various fields.

[0003] In high temperature weather, the high air temperature will reduce the heat dissipation effect of the condenser, resulting in an increase in the workload of the condenser, causing a large amount of power consumption of the condenser, and affecting the refrigeration efficiency of the refrigerator. Therefore, a variable frequency energy-saving device for a refrigerator is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a frequency conversion energy-saving device for a refrigerator, which solves the problem that the heat dissipation effect of the condenser is reduced due to high air temperature, resulting in an increase in the workload of the condenser and causing high power consumption of the condenser.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a variable frequency energy-saving device for a refrigerator, comprising a refrigeration case, an evaporator, a compressor and a condenser are arranged inside the refrigeration case, the evaporator and the compressor are fixedly mounted on the inner wall of the refrigeration case, the air outlet end of the compressor is connected with a connecting pipe, one side of the connecting pipe is connected with one end of the condenser, the other end of the condenser is connected with the upper part of the outer surface of the evaporator, the top of the evaporator is connected with an air outlet pipe, one end of the air outlet pipe passes through the refrigeration case and extends to the outside of the refrigeration case, the top and bottom of the outer surface of the air outlet pipe are connected with mounting pipes, a circulation pipe is connected between one ends of the two mounting pipes, and an electric fan is fixedly mounted on one side of the front of the refrigeration case through an opening.

[0006] Preferably, the bottom of the evaporator is connected with an air inlet pipe, one end of which passes through the refrigeration cabinet and extends to the bottom of the refrigeration cabinet, and the outer surface of the evaporator is connected to the other side of the compressor through a pipeline.

[0007] Preferably, a filter plate is fixedly mounted on the front of the electric fan, and a plurality of ventilation holes are provided on the rear of the refrigeration chassis.

[0008] Preferably, a thermometer is fixedly installed at the top of the inner cavity of the refrigeration cabinet and behind the condenser.

[0009] Preferably, a frequency conversion controller compatible with the electric fan is fixedly mounted on one side of the top of the refrigeration chassis.

[0010] Preferably, an electromagnetic control switch is provided on the outer surface of the mounting tube located below.

[0011] Beneficial Effects

[0012] The utility model provides a frequency conversion energy-saving device for a refrigerator. Compared with the existing technology, it has the following beneficial effects:

[0013] (1) When the utility model discharges cold air through the air outlet pipe on the evaporator, part of the cold air will enter the circulation pipe through the installation pipe. At the same time, the electric fan will blow air to the condenser. The wind will pass through the circulation pipe to cool the condenser, which can dissipate heat from the condenser well, effectively reduce the power consumption of the condenser, achieve energy-saving effects, and improve the cooling efficiency of the refrigeration chassis.

[0014] (2) The utility model monitors the temperature of the condenser by means of a thermometer. When the temperature of the condenser is not high, the frequency conversion controller is used to adjust and reduce the blowing power of the electric fan, thereby better reducing the consumption of electric energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the external structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 It is a rear view of the internal structure of the utility model.

[0018] In the figure: 1. Refrigeration chassis; 2. Evaporator; 3. Compressor; 4. Condenser; 5. Connecting pipe; 6. Exhaust pipe; 7. Mounting pipe; 8. Circulation pipe; 9. Electric fan; 10. Frequency conversion controller; 11. Electromagnetic control switch; 12. Filter plate; 13. Thermometer; 14. Inlet pipe; 15. Vent. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] See also Figure 1-3The utility model provides a technical solution: a variable frequency energy-saving device for a refrigerator, comprising a refrigerator case 1, an evaporator 2, a compressor 3 and a condenser 4 are arranged inside the refrigerator case 1, the evaporator 2 and the compressor 3 are fixedly installed on the inner wall of the refrigerator case 1, the bottom of the evaporator 2 is connected with an air inlet pipe 14, one end of the air inlet pipe 14 passes through the refrigerator case 1 and extends to the bottom of the refrigerator case 1, the outer surface of the evaporator 2 is connected with the other side of the compressor 3 through a pipeline, the air outlet end of the compressor 3 is connected with a connecting pipe 5, one side of the connecting pipe 5 is connected to the condenser 4, the other end of the condenser 4 is connected to the top of the outer surface of the evaporator 2, the top of the evaporator 2 is connected with an outlet pipe 6, one end of the outlet pipe 6 passes through the refrigeration case 1 and extends to the outside of the refrigeration case 1, the top and bottom of the outer surface of the outlet pipe 6 are connected with mounting pipes 7, and a circulation pipe 8 is connected between one ends of the two mounting pipes 7. An electric fan 9 is fixedly installed on one side of the front of the refrigeration case 1 through an opening, which is electrically connected to an external power supply and controlled by a frequency conversion controller 10. A plurality of ventilation holes 15 are provided at the rear of the refrigeration case 1.

[0021] Furthermore, in order to filter the wind entering the electric fan 9 , a filter plate 12 is fixedly installed at the front of the electric fan 9 .

[0022] Furthermore, in order to facilitate the adjustment of the power of the electric fan 9, a thermometer 13 is fixedly installed at the top of the inner cavity of the refrigeration chassis 1 and behind the condenser 4, a frequency conversion controller 10 compatible with the electric fan 9 is fixedly installed on one side of the top of the refrigeration chassis 1, and an electromagnetic control switch 11 is provided on the outer surface of the mounting tube 7 below.

[0023] When in use, the electric fan 9 is controlled to blow air, and the external wind is filtered through the filter plate 12 and enters the refrigeration box 1. The wind entering the refrigeration box 1 passes through the condenser 4 and is discharged from the multiple vents 15, thereby blowing and cooling the condenser 4;

[0024] At the same time, the evaporator 2, the compressor 3 and the condenser 4 are cooling. When the cold air is discharged from the outlet pipe 6, part of the cold air will enter the circulation pipe 8 through the installation pipe 7 below, and the surface of the circulation pipe 8 will be cooled by the cold air. Then, the cold air in the circulation pipe 8 will enter the outlet pipe 6 again and be discharged. The wind blown by the electric fan 9 will pass through the circulation pipe 8 to cool the blown wind, so as to better dissipate the heat of the condenser 4. At the same time, the thermometer 13 monitors the temperature around the condenser 4. When the temperature is low, the frequency conversion controller 10 is used to adjust and reduce the power of the electric fan 9.

Claims

1. A variable frequency energy-saving device for a refrigerator, comprising a refrigerator box (1), characterized in that: An evaporator (2), a compressor (3) and a condenser (4) are arranged inside the refrigeration case (1); the evaporator (2) and the compressor (3) are both fixedly mounted on the inner wall of the refrigeration case (1); the air outlet end of the compressor (3) is connected to a connecting pipe (5); one side of the connecting pipe (5) is connected to one end of the condenser (4); the other end of the condenser (4) is connected to the upper part of the outer surface of the evaporator (2); the top of the evaporator (2) is connected to an air outlet pipe (6); one end of the air outlet pipe (6) passes through the refrigeration case (1) and extends to the outside of the refrigeration case (1); the top and bottom of the outer surface of the air outlet pipe (6) are both connected to mounting pipes (7); a circulation pipe (8) is connected between one ends of the two mounting pipes (7); an electric fan (9) is fixedly mounted on one side of the front of the refrigeration case (1) by opening.

2. A frequency conversion energy-saving device for a refrigerator according to claim 1, characterized in that: The bottom of the evaporator (2) is connected to an air intake pipe (14), one end of which passes through the refrigeration case (1) and extends to the bottom of the refrigeration case (1), and the outer surface of the evaporator (2) is connected to the other side of the compressor (3) via a pipeline.

3. A frequency conversion energy-saving device for a refrigerator according to claim 1, characterized in that: A filter plate (12) is fixedly mounted on the front of the electric fan (9), and a plurality of ventilation holes (15) are provided on the rear of the refrigeration cabinet (1).

4. The frequency conversion energy-saving device for a refrigerator according to claim 1, characterized in that: A thermometer (13) is fixedly installed at the top of the inner cavity of the refrigeration cabinet (1) and behind the condenser (4).

5. The frequency conversion energy-saving device for a refrigerator according to claim 1, characterized in that: A frequency conversion controller (10) adapted to the electric fan (9) is fixedly mounted on one side of the top of the refrigeration cabinet (1).

6. A frequency conversion energy-saving device for a refrigerator according to claim 1, characterized in that: An electromagnetic control switch (11) is arranged on the outer surface of the mounting tube (7) located at the bottom.

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