Self-cleaning device for condenser

Abstract

A condenser self-cleaning device comprises a condenser, a condensation fan and a compressor which are arranged in a machine chamber of a refrigerator, the condenser is arranged at an air inlet of the machine chamber, the condensation fan is arranged on the side, away from the air inlet, of the condenser, and the compressor is arranged on the side, away from the condenser, of the condensation fan. The side, close to the air inlet, of the condenser is covered with a rotatable filter screen, a telescopic mechanism for driving the filter screen to rotate is installed in the machine chamber, a cleaning fan is further installed in the machine chamber, the cleaning fan is arranged on the side away from the rotating center of the filter screen, and the cleaning fan blows air towards the side, away from the rotating center of the filter screen, of the filter screen. The condenser or the filter screen does not need to be cleaned manually, regular automatic cleaning can be achieved, it is guaranteed that the windward side of the condenser is clean, the heat dissipation efficiency of the condenser is good, time and labor are saved, and labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerators, in particular to a condenser self-cleaning device. Background Art

[0002] like Figure 1 As shown, when the condensing unit of a refrigerator on the market works normally, the condensing fan 2 forces the condenser 1 to dissipate heat, and the side of the condenser 1 away from the condensing fan 2 is the windward side. At the same time, the condensing fan 2 can also cool the compressor 3. When the condensing unit works for a long time, the windward side of the condenser 1 will be covered with dust and debris, thereby blocking the air duct, greatly reducing the heat dissipation efficiency of the condenser 1, and the energy consumption will also increase accordingly.

[0003] Low-end refrigerators usually simply post a reminder on the side of the machine room to remind users to use a dry brush to clean the dust and debris on the windward side of the condenser 1 within 1-2 months to avoid affecting the refrigeration effect. Relatively high-end refrigerators install a filter on the windward side of the condenser 1 to prevent dust and debris from entering the machine room of the refrigerator and directly contacting the condenser 1. Within 1-2 months, users can remove the filter for cleaning by themselves, and then reinstall the filter on the windward side of the condenser 1 after cleaning. Both of the above refrigerators need to be manually cleaned regularly after long-term operation, which is time-consuming and labor-intensive, with high labor costs, and it is difficult to clean the windward side of the condenser 1. In order to solve the above problems, people have been seeking an ideal technical solution. Summary of the invention

[0004] The purpose of the utility model is to address the deficiencies in the prior art and thus provide a condenser self-cleaning device. The utility model does not require manual cleaning of the condenser or the filter, and can achieve regular automatic cleaning, thereby ensuring that the windward surface of the condenser is clean and the heat dissipation efficiency of the condenser is good, saving time and effort and reducing labor costs.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a condenser self-cleaning device, comprising a condenser, a condensing fan and a compressor arranged in a machine room of a refrigerator, the condenser is arranged at the air inlet of the machine room, the condensing fan is arranged on the side of the condenser away from the air inlet, the compressor is arranged on the side of the condensing fan away from the condenser, the side of the condenser close to the air inlet is covered with a rotatable filter, a telescopic mechanism for driving the filter to rotate is installed in the machine room, a cleaning fan is also installed in the machine room, the cleaning fan is arranged on the side away from the rotation center of the filter, the cleaning fan blows air toward the side of the rotation center of the filter, the control system of the refrigerator is respectively controlled and connected to the condensing fan, the compressor, the telescopic mechanism and the cleaning fan, and the power supply system of the refrigerator is respectively electrically connected to the condensing fan, the compressor, the telescopic mechanism and the cleaning fan.

[0006] Based on the above, the telescopic mechanism includes an electric push rod, the two ends of which are respectively hinged on a side of the filter away from the condenser and an inner wall of the air inlet. The control system of the refrigerator is controlled and connected to the electric push rod, and the power system of the refrigerator is electrically connected to the electric push rod.

[0007] Based on the above, the lower side of the filter is hinged to the inner bottom surface of the machine room by a hinge, the cleaning fan is fixedly installed on the upper part of the side of the condenser close to the air inlet by a bracket and is located directly above the filter, the cleaning fan blows air vertically downward, the piston rod of the electric push rod extends obliquely upward and the extended end is hinged to the upper edge of the side of the filter away from the condenser, and the bottom end of the cylinder of the electric push rod is hinged to the inner side wall of the machine room on the side of the air inlet.

[0008] Based on the above, the upper side of the filter is hinged to the upper edge of the side surface of the condenser close to the air inlet through a hinge, the cleaning fan is fixedly installed on the inner bottom surface of the machine room and is located directly below the filter, the cleaning fan blows air vertically upward, the piston rod of the electric push rod extends obliquely downward and the extended end is hinged to the lower edge of the side surface of the filter away from the condenser, and the bottom end of the cylinder of the electric push rod is hinged to the inner wall of the machine room on the side of the air inlet.

[0009] Based on the above, the left side of the filter is hinged to the left edge of the side of the condenser close to the air inlet through a hinge, the cleaning fan is fixedly installed on the right side of the condenser close to the air inlet through a bracket and corresponds to the left and right sides of the filter. The cleaning fan blows air to the left, and the piston rod of the electric push rod extends obliquely to the right and the extended end is hinged to the right edge of the side of the filter away from the condenser. The bottom end of the cylinder of the electric push rod is hinged to the inner wall of the machine room on the side of the air inlet.

[0010] Based on the above, the right side of the filter is hinged to the right edge of the side of the condenser close to the air inlet through a hinge, the cleaning fan is fixedly installed on the left side of the condenser close to the air inlet through a bracket and corresponds to the left and right sides of the filter. The cleaning fan blows air to the right, and the piston rod of the electric push rod extends obliquely to the left and the extended end is hinged to the left edge of the side of the filter away from the condenser. The bottom end of the cylinder of the electric push rod is hinged to the inner wall of the machine room on the side of the air inlet.

[0011] The utility model has substantial features and progress compared with the prior art. Specifically, the utility model covers and installs a rotatable filter on one side of the air inlet of the condenser close to the machine room. During normal operation, the filter blocks the side of the air inlet of the condenser close to the machine room, the condensing fan runs, and the cleaning fan does not run. The condensing fan draws air into the machine room from the air inlet, and the drawn air is blown toward the condenser through the filter to dissipate heat for the condenser. The filter can filter dust and debris to prevent dust and debris from directly contacting the condenser. The control system of the refrigerator pre-sets a cleaning cycle (timing). For example, after one week of operation, the filter enters the dust removal time, and the refrigerator The control system controls the condensing fan to stop working, and the control system of the refrigerator controls the electric push rod to retract so that the filter rotates a certain angle and moves away from the condenser. At the same time, the control system of the refrigerator controls the cleaning fan to start running. The cleaning fan blows toward the filter to blow off the dust or debris on the surface of the filter. After the dust removal time is over, the electric push rod extends to reset the filter, and the cleaning fan stops working. At the same time, the condensing fan is controlled to start working, and the refrigerator resumes normal operation. There is no need to rely on manual cleaning of the condenser or the filter. Regular automatic cleaning can be achieved to ensure that the windward side of the condenser is clean and the heat dissipation efficiency of the condenser is good, saving time and effort and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the normal operation of the condensing unit of an existing refrigerator.

[0013] Figure 2 It is a structural schematic diagram of the utility model when the condensing unit works normally.

[0014] Figure 3 It is a schematic diagram of the structure of the utility model when the filter screen is used for dust removal.

[0015] In the figure: 1. Condenser; 2. Condensing fan; 3. Compressor; 4. Filter; 5. Cleaning fan; 6. Electric push rod; 7. Hinge; 8. Bracket. DETAILED DESCRIPTION

[0016] The technical solution of the utility model is further described in detail below through specific implementation methods.

[0017] like Figure 2 and 3As shown, a condenser self-cleaning device comprises a condenser 1, a condensing fan 2 and a compressor 3 arranged in a machine room of a refrigerator, the condenser 1 is arranged at the air inlet of the machine room, the condensing fan 2 is arranged on the side of the condenser 1 away from the air inlet, the compressor 3 is arranged on the side of the condensing fan 2 away from the condenser 1, the side of the condenser 1 close to the air inlet is covered with a rotatable filter 4, a telescopic mechanism for driving the filter 4 to rotate is installed in the machine room, a cleaning fan 5 is also installed in the machine room, the cleaning fan 5 is arranged on the side away from the rotation center of the filter 4, the cleaning fan 5 blows air toward the side of the rotation center of the filter 4, the control system of the refrigerator is respectively controlled and connected with the condensing fan 2, the compressor 3, the telescopic mechanism and the cleaning fan 5, and the power supply system of the refrigerator is respectively electrically connected with the condensing fan 2, the compressor 3, the telescopic mechanism and the cleaning fan 5.

[0018] The telescopic mechanism includes an electric push rod 6, the two ends of which are respectively hinged on a side of the filter 4 away from the condenser 1 and an inner wall of one side of the air inlet, the control system of the refrigerator is controlled and connected to the electric push rod 6, and the power system of the refrigerator is electrically connected to the electric push rod 6. In other embodiments, the telescopic mechanism can use a hydraulic rod or a cylinder.

[0019] The lower side of the filter 4 is hinged to the inner bottom surface of the machine room by a hinge 7. The cleaning fan 5 is fixedly installed on the upper part of the side of the condenser 1 close to the air inlet by a bracket 8 and is located directly above the filter 4. The cleaning fan 5 blows air vertically downward. The piston rod of the electric push rod 6 extends obliquely upward and the extended end is hinged to the upper edge of the side surface of the filter 4 away from the condenser 1. The bottom end of the cylinder of the electric push rod 6 is hinged to the inner side wall of the machine room on the side of the air inlet.

[0020] When the present embodiment is working, the refrigerator is in normal operation, the filter 4 blocks the side of the air inlet of the condenser 1 close to the machine room, the condensing fan 2 is running, and the cleaning fan 5 is not running. The condensing fan 2 draws air into the machine room from the air inlet, and the drawn air is blown toward the condenser 1 through the filter 4 to dissipate heat for the condenser 1. The filter 4 can filter dust and debris to prevent dust and debris from directly contacting the condenser 1. After the refrigerator has been running for a certain period of time, such as running for one week and entering the dust removal time of the filter 4 (a cleaning cycle can be pre-set in the control system of the refrigerator, which is a timing function), the control system of the refrigerator controls the condensing fan 2 to stop working, and the refrigerator The control system controls the electric push rod 6 to contract so that the filter 4 rotates a certain angle and moves away from the condenser 1. At the same time, the control system of the refrigerator controls the cleaning fan 5 to start running. The cleaning fan 5 blows air toward the filter 4 to blow off the dust or debris on the surface of the filter 4. After the dust removal time is over, the electric push rod 6 extends to reset the filter 4, the cleaning fan 5 stops working, and the condensing fan 2 is controlled to start working at the same time, so that the refrigerator resumes normal operation. There is no need to rely on manual cleaning of the condenser 1 or the filter 4. Regular automatic cleaning can be achieved to ensure that the windward side of the condenser 1 is clean and the heat dissipation efficiency of the condenser 1 is good, which saves time and effort and reduces labor costs.

[0021] Example 2

[0022] Different from Example 1, the upper side of the filter 4 is hinged to the upper edge of the side surface of the condenser 1 close to the air inlet through a hinge 7, the cleaning fan 5 is fixedly installed on the inner bottom surface of the machine room and is located directly below the filter 4, the cleaning fan 5 blows air vertically upward, the piston rod of the electric push rod 6 extends obliquely downward and the extended end is hinged to the lower edge of the side surface of the filter 4 away from the condenser 1, and the bottom end of the cylinder body of the electric push rod 6 is hinged to the inner wall of the machine room on the side of the air inlet.

[0023] Example 3

[0024] Different from Example 1, the left side of the filter 4 is hinged to the left edge of the side of the condenser 1 close to the air inlet through a hinge 7, and the cleaning fan 5 is fixedly installed on the right side of the condenser 1 close to the air inlet through a bracket and corresponds to the left and right sides of the filter 4. The cleaning fan 5 blows air to the left, and the piston rod of the electric push rod 6 extends obliquely to the right and the extended end is hinged to the right edge of the side of the filter 4 away from the condenser 1. The bottom end of the cylinder of the electric push rod 6 is hinged to the inner wall of the machine room on the side of the air inlet.

[0025] Example 4

[0026] Different from Example 1, the right side of the filter 4 is hinged to the right edge of the side of the condenser 1 close to the air inlet through a hinge 7, and the cleaning fan 5 is fixedly installed on the left side of the condenser 1 close to the air inlet through a bracket and is exactly corresponding to the left and right sides of the filter 4. The cleaning fan 5 blows air to the right, and the piston rod of the electric push rod 6 extends obliquely to the left and the extended end is hinged to the left edge of the side of the filter 4 away from the condenser 1. The bottom end of the cylinder of the electric push rod 6 is hinged to the inner side wall of the machine room on the side of the air inlet.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A condenser self-cleaning device, comprising a condenser, a condensing fan and a compressor arranged in a machine room of a refrigerator, wherein the condenser is arranged at the air inlet of the machine room, the condensing fan is arranged on a side of the condenser away from the air inlet, and the compressor is arranged on a side of the condensing fan away from the condenser, characterized in that: A rotatable filter is installed on one side of the condenser close to the air inlet, a telescopic mechanism for driving the filter to rotate is installed in the machine room, a cleaning fan is also installed in the machine room, the cleaning fan is arranged on the side away from the rotation center of the filter, the cleaning fan blows air toward the side of the rotation center of the filter, the control system of the refrigerator is respectively connected to the condensing fan, compressor, telescopic mechanism and cleaning fan control, and the power system of the refrigerator is respectively electrically connected to the condensing fan, compressor, telescopic mechanism and cleaning fan.

2. The condenser self-cleaning device according to claim 1, characterized in that: The telescopic mechanism includes an electric push rod, the two ends of which are respectively hinged on a side of the filter away from the condenser and an inner wall of one side of the air inlet. The control system of the refrigerator is control-connected to the electric push rod, and the power system of the refrigerator is electrically connected to the electric push rod.

3. The condenser self-cleaning device according to claim 2, characterized in that: The lower side of the filter is hinged to the inner bottom surface of the machine room by a hinge, the cleaning fan is fixedly installed on the upper part of the side of the condenser close to the air inlet by a bracket and is located directly above the filter, the cleaning fan blows air vertically downward, the piston rod of the electric push rod extends obliquely upward and the extended end is hinged to the upper edge of the side of the filter away from the condenser, and the bottom end of the cylinder of the electric push rod is hinged to the inner side wall of the machine room on the side of the air inlet.

4. The condenser self-cleaning device according to claim 2, characterized in that: The upper side of the filter is hinged to the upper edge of the side surface of the condenser close to the air inlet through a hinge. The cleaning fan is fixedly installed on the inner bottom surface of the machine room and is located directly below the filter. The cleaning fan blows air vertically upward. The piston rod of the electric push rod extends obliquely downward and the extended end is hinged to the lower edge of the side surface of the filter away from the condenser. The bottom end of the cylinder of the electric push rod is hinged to the inner wall of the machine room on the side of the air inlet.

5. The condenser self-cleaning device according to claim 2, characterized in that: The left side of the filter is hinged to the left edge of the side of the condenser close to the air inlet through a hinge. The cleaning fan is fixedly installed on the right side of the condenser close to the air inlet through a bracket and corresponds to the left and right sides of the filter. The cleaning fan blows air to the left, and the piston rod of the electric push rod extends obliquely to the right and the extended end is hinged to the right edge of the side of the filter away from the condenser. The bottom end of the cylinder of the electric push rod is hinged to the inner side wall of the machine room on the side of the air inlet.

6. The condenser self-cleaning device according to claim 2, characterized in that: The right side of the filter is hinged to the right edge of the side of the condenser close to the air inlet through a hinge. The cleaning fan is fixedly installed on the left side of the condenser close to the air inlet through a bracket and corresponds to the left and right sides of the filter. The cleaning fan blows air to the right. The piston rod of the electric push rod extends obliquely to the left and the extended end is hinged to the left edge of the side of the filter away from the condenser. The bottom end of the cylinder of the electric push rod is hinged to the inner side wall of the machine room on the side of the air inlet.

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