Refrigerator

Abstract

The present invention provides a refrigerator, which includes a box, a refrigeration system, an ionization device and at least one dust collecting plate, wherein a compressor cabin is provided at the rear of the bottom of the box, the refrigeration system includes a compressor and a condenser connected to the compressor, the compressor and the condenser are arranged in the compressor cabin at intervals along the lateral direction of the box, the ionization device is arranged at a side of the condenser away from the compressor, and is configured to ionize dust in the air, at least one dust collecting plate is arranged between the condenser and the ionization device, and the dust collecting plate is configured to have an electrical property with a polarity opposite to that of the ionization device to absorb the ionized dust. The refrigerator of the present invention collects dust in the air through the ionization device and the dust collecting plate, effectively reduces the probability of dusting of the condenser, has strong practicality, and is easy to promote.

Description

Technical Field

[0001] The present invention relates to refrigeration and freezing devices, and particularly to a refrigerator. Background Art

[0002] Generally, there is a compressor compartment for setting a compressor at the rear lower part of a refrigerator. A condenser is arranged in the compressor compartment. The compressor transports high-temperature and high-pressure refrigerant to the condenser through a pipeline for heat dissipation. Since the position of the compressor compartment is close to the bottom surface, dust is likely to enter. Once the dust accumulates on the condenser, it is not only difficult to clean, but may also cause a decrease in the heat exchange efficiency of the condenser.

[0003] In order to achieve dust removal of the condenser, the prior art mainly uses means such as filters, water washing, and reverse rotation of the fan. However, the above means are all passive dust removal, and cannot effectively prevent the condenser from accumulating dust, and the effect is not ideal. Summary of the Invention

[0004] An object of the present invention is to overcome at least one defect in the prior art and provide a refrigerator.

[0005] A further object of the present invention is to reduce the probability of dust accumulation on the condenser.

[0006] Another further object of the present invention is to use defrost water to clean the dust collecting plate.

[0007] Another even further object of the present invention is to synchronize the cleaning of the dust collecting plate with the defrosting of the evaporator of the refrigerator.

[0008] Specifically, the present invention provides a refrigerator, including: a box body, having a compressor compartment at the rear of its bottom;

[0009] a refrigeration system, including a compressor and a condenser connected to the compressor, the compressor and the condenser being arranged at intervals in the compressor compartment along the transverse direction of the box body; an ionization device, arranged on the side of the condenser facing away from the compressor, configured to ionize dust in the air; and at least one dust collecting plate, arranged between the condenser and the ionization device, the dust collecting plate being configured to carry an electric property opposite to that of the ionization device to adsorb the ionized dust.

[0010] Optionally, the refrigerator further includes: a fixed cover body, covering the periphery of the condenser, and its two lateral sides being open; and the ionization device is fixed to the bottom wall of the fixed cover body, and the dust collecting plate is fixed to the side wall of the fixed cover body.

[0011] Optionally, the fixed cover body further includes a skirt portion, the skirt portion extending upward from the top wall of the fixed cover body to jointly define a water receiving tray with the top wall of the fixed cover body, the water receiving tray being used to collect defrost water generated by the evaporator of the refrigerator; and a diversion hole is opened in the top wall of the fixed cover body at the position of the dust collecting plate, and the defrost water in the water receiving tray flows to the dust collecting plate through the diversion hole to clean the dust collecting plate.

[0012] Optionally, the refrigerator further comprises: the bottom of the box body has a bottom plate as the bottom wall of the compressor cabin, the bottom plate has an evaporating dish, and the fixed cover is located above the evaporating dish so that defrost water for cleaning the dust collecting plate flows into the evaporating dish.

[0013] Optionally, the bottom wall of the fixed cover body is also provided with a transversely extending mounting groove, the mounting groove is opposite to the guide hole up and down, the bottom of the dust collecting plate extends into the mounting groove, and the top of the dust collecting plate is inserted into the guide hole.

[0014] Optionally, the top wall of the fixed cover body has a flow guide slope that slopes downward toward the flow guide hole.

[0015] Optionally, a drainage hole is provided on the top plate of the compressor compartment at the water receiving tray; and the refrigerator further comprises: a drainage pipe, a first end of which is arranged at the bottom of the refrigerator evaporator, and a second end of which is connected to the drainage hole to guide the defrost water to the water receiving tray.

[0016] Optionally, the ionization device further comprises a support and an annular corona electrode, wherein the support is fixed to the bottom wall of the fixed cover body, and the annular corona electrode is fixed to the top of the support and faces the condenser.

[0017] Optionally, the annular corona electrode is a thorn corona electrode.

[0018] Optionally, the refrigerator further comprises: a heat dissipation fan, which is disposed between the condenser and the compressor and is configured to promote the formation of a heat dissipation airflow that flows sequentially through the ionization device and the condenser.

[0019] The refrigerator of the present invention can ionize dust in the air because the ionization device is arranged on the side of the condenser away from the compressor, and the dust collecting plate is arranged between the condenser and the ionization device. Therefore, when the condenser exchanges heat, the heat dissipation airflow can be blown toward the condenser from the side with the ionization device, and the heat dissipation airflow can first contact the ionization device, and the dust in the heat dissipation airflow can obtain electric charge. After passing through the ionization device, the heat dissipation airflow passes through the dust collecting plate. The dust collecting plate has an electric charge with a polarity opposite to that of the dust, and can adsorb dust thereon, thereby reducing the dust content in the heat dissipation airflow passing through the dust collecting plate, thereby effectively reducing the probability of dust accumulation in the condenser.

[0020] Furthermore, in the refrigerator of the present invention, the fixed cover body may also include a skirt portion, which extends upward from the top wall of the fixed cover body to define a water receiving tray together with the top wall of the fixed cover body. The water receiving tray is used to collect defrost water generated by the refrigerator evaporator. The top wall of the fixed cover body is provided with a guide hole at the dust collecting plate. The defrost water in the water receiving tray flows to the dust collecting plate through the guide hole, so that the dust collecting plate can be cleaned with the defrost water.

[0021] Furthermore, in the refrigerator of the present invention, the compressor, the ionization device, and the dust collection plate operate simultaneously, while the cleaning of the dust collection plate and the operation of the compressor are carried out sequentially. The defrosting of the refrigerator evaporator is performed when the compressor stops working. Therefore, the cleaning process of the dust collection plate can be synchronized with the defrosting process of the refrigerator evaporator, and the water source required for cleaning the dust collection plate is the defrosting water of the refrigerator evaporator, achieving synchronization in time.

[0022] From the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more apparent about the above and other objects, advantages, and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings in an exemplary but not restrictive manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0024] Figure 1 is a schematic diagram of a refrigerator according to an embodiment of the present invention;

[0025] Figure 2 is a partial schematic diagram of a refrigerator according to an embodiment of the present invention;

[0026] Figure 3 is an exploded view of some components of a refrigerator according to an embodiment of the present invention;

[0027] Figure 4 is a schematic diagram of a fixed cover in a refrigerator according to an embodiment of the present invention;

[0028] Figure 5 is Figure 4 an enlarged view of part A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] In the description of this embodiment, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "depth", etc. indicate the orientation or positional relationship based on the orientation of the refrigerator 1 in its normal use state as a reference, and the orientation or positional relationship shown in the accompanying drawings can be determined. For example, "front" indicating the orientation refers to the side facing the user. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0030] See Figure 1 , Figure 1FIG. 0 is a schematic diagram of a refrigerator 1 according to an embodiment of the present invention, which hides components such as the door body and shows the cabinet 10. The present invention provides a refrigerator 1, which may include a cabinet 10 and a door body. The cabinet 10 may include an outer shell and one or more inner liners. The outer shell is located on the outermost side of the overall refrigerator 1 to protect the entire refrigerator 1. The space between the inner liner and the outer shell is filled with a heat-insulating material (forming a foamed layer) to reduce the heat dissipation from the inner liner to the outside. Each inner liner may define a storage compartment 110 that opens forward, and the storage compartment 110 may be configured as a refrigerating compartment, a freezing compartment, a variable-temperature compartment, etc. The specific number and functions of the storage compartments 110 may be configured according to pre-set requirements.

[0031] The door body may be provided on the front side of the cabinet 10 for opening and closing the storage compartment 110. The door body may be hingedly provided on one side of the front part of the cabinet 10 and open and close the storage compartment 110 by pivoting. The number of door bodies may match the number of storage compartments 110, so that the storage compartments 110 can be opened individually one by one.

[0032] See Figure 1 , further, a compressor compartment 120 is provided at the rear of the bottom of the cabinet 10. The refrigerator 1 may further include a refrigeration system, which provides cooling capacity for the storage compartment 110 of the refrigerator 1. The refrigeration system may include a compressor 20, a condenser 30, a throttling device, and an evaporator.

[0033] The compressor 20 is provided in the compressor compartment 120 and serves as the power of the refrigeration system. It increases the pressure and temperature of the refrigerant vapor through compression, creating conditions for transferring the heat of the refrigerant vapor to the external environmental medium, that is, compressing the low-temperature and low-pressure refrigerant vapor to a high-temperature and high-pressure state, so that ambient air or water at room temperature can be used as a cooling medium to condense the refrigerant vapor.

[0034] The condenser 30 is provided in the compressor compartment 120 and is arranged at one side of the compressor 20 at intervals along the transverse direction of the cabinet 10. The condenser 30 is a heat exchange device that uses the environment to take away the heat of the high-temperature and high-pressure refrigerant vapor from the compressor 20, so that the high-temperature and high-pressure refrigerant vapor is cooled and condensed into a high-pressure and normal-temperature refrigerant liquid. The high-pressure and normal-temperature refrigerant liquid passes through the throttling device to become a low-temperature and low-pressure refrigerant, reducing the pressure of the refrigerant liquid and also reducing the temperature of the refrigerant liquid.

[0035] The throttling device is also a heat exchange device. The throttled low-temperature and low-pressure refrigerant liquid evaporates (boils) into vapor in it, absorbing the heat in the storage compartment 110 and reducing its temperature to achieve the purpose of freezing and refrigerating food.

[0036] The evaporator can be arranged inside the box body 10 to directly or indirectly provide cooling capacity to the storage compartment 110 of the refrigerator 1. For example, in a compression direct-cooling refrigerator 1, the evaporator can be arranged on the outer or inner side of the rear wall surface of the inner liner of the refrigerator 1. In a compression air-cooling refrigerator 1, there is also an evaporator chamber inside the box body 10. The evaporator chamber is communicated with the storage compartment 110 through an air duct system, and an evaporator is arranged in the evaporator chamber, and a blower is arranged at the outlet to perform circulating refrigeration on the storage compartment 110.

[0037] See Figure 2 and Figure 3 , Figure 2 FIG. is a partial schematic view of the refrigerator 1 according to an embodiment of the present invention, showing some components installed in the compressor compartment 120. Figure 3 FIG. is an exploded view of some components in the refrigerator 1 according to an embodiment of the present invention. In some embodiments, the refrigerator 1 may further include an ionization device 40 and at least one dust collection plate 50. The ionization device 40 is arranged on the side of the condenser 30 facing away from the compressor 20 and is configured to ionize the dust in the air. At least one dust collection plate 50 is arranged between the condenser 30 and the ionization device 40. The dust collection plate 50 is configured to carry an electric charge opposite to the polarity of the ionization device 40 to adsorb the ionized dust.

[0038] The ionization device 40 is connected with high-voltage direct current to maintain an electrostatic field capable of ionizing the air. After the air is ionized, charges are generated and adsorbed on the dust, so that the dust obtains charges. The dust collection plate 50 can be connected with direct current having a polarity opposite to that of the ionization device 40. When the dust with charges passes through the dust collection plate 50, it is adsorbed by the dust collection plate 50, and dust prevention can be realized.

[0039] In some specific embodiments, the ionization device 40 can be connected to the negative pole of a 310V DC power supply, and the dust collection plate 50 can be connected to the positive pole of the 310V DC power supply. In this way, the ionization device 40 can ionize the surrounding air into negative charges, and the negative charges are adsorbed on the dust passing through the ionization device 40. The dust collection plate 50 has positive charges to adsorb the dust with negative charges. Since the 310V DC power supply can be generated by rectifying and filtering the civil 220V power supply, the 310V DC power supply is not difficult to obtain and will not add too many power supply devices to the refrigerator 1.

[0040] In addition, the electrode voltage in the existing electrostatic dust removal structure uses a relatively high voltage (kilovolt level). If this voltage is applied inside the refrigerator 1, when the electrode discharges, the oxygen in the air may be oxidized into ozone. The strongly oxidizing ozone is harmful to the user's body and is not suitable for the use environment of the refrigerator 1. Therefore, using a 310V DC power supply is not only easy to obtain, but also can prevent the ionization device 40 from generating ozone.

[0041] When the condenser 30 is exchanging heat, the heat dissipation airflow can be blown toward the condenser 30 from the side with the ionization device 40. Since the ionization device 40 is arranged on the side of the condenser 30 away from the compressor 20, and the dust collecting plate 50 is arranged between the condenser 30 and the ionization device 40, the heat dissipation airflow can first contact the ionization device 40, and the dust in the heat dissipation airflow can obtain an electric charge. After passing through the ionization device 40, the heat dissipation airflow passes through the dust collecting plate 50. The dust collecting plate 50 has an electric charge with a polarity opposite to that of the dust, and can adsorb dust thereon, so that the dust content in the heat dissipation airflow passing through the dust collecting plate 50 is reduced, thereby effectively reducing the probability of dust accumulation in the condenser 30.

[0042] See also Figures 2 to 4 , Figure 4 Schematic diagram of a fixed cover 60 in a refrigerator 1 according to an embodiment of the present invention. In some embodiments, the refrigerator 1 may further include a fixed cover 60, which covers the condenser 30 and has two lateral sides open, the ionization device 40 is fixed to the bottom wall 62 of the fixed cover 60, and the dust collecting plate 50 is fixed to the side wall of the fixed cover 60.

[0043] In this embodiment, both lateral sides of the fixed cover body 60 are open, and the heat dissipation airflow can flow from one side of the condenser 30 to the other side along the openings of the fixed cover body 60 to form a flow path for the heat dissipation airflow.

[0044] In some specific embodiments, since the ionization device 40 is fixed to the fixed cover 60, the dust collecting plate 50 is fixed to the side wall of the fixed cover 60, and the fixed cover 60 also covers the condenser 30, the lateral dimension of the fixed cover 60 can be set to be larger than the lateral dimension of the condenser 30. In this way, when the condenser 30 is set in the fixed cover 60, one side of the fixed cover 60 can reserve space for setting the ionization device 40 and the dust collecting plate 50.

[0045] There can be two dust collecting plates 50, which can be respectively arranged on the two side walls 66 of the fixed cover body 60, and the ionization device 40 can be arranged in the middle position of the two dust collecting plates 50, so that the two dust collecting plates 50 can absorb dust in the heat dissipation airflow at the same time to improve the dust removal effect.

[0046] The fixed cover body 60 can also be set to a wider opening on the side where the ionization device 40 is set, and the opening on the other side can be consistent with the size of the condenser 30 to increase the air volume entering the fixed cover body 60, improve the air volume utilization rate, and improve the heat exchange effect.

[0047] See also Figure 4, in some embodiments, the fixed cover 60 may further include a skirt portion 68 that extends upward from the top wall 64 of the fixed cover 60 to jointly define a water receiving tray with the top wall 64 of the fixed cover 60. The water receiving tray is used to collect the defrost water generated by the evaporator of the refrigerator 1. A diversion hole 642 is provided in the top wall of the fixed cover 60 at the dust collecting plate 50. The defrost water in the water receiving tray flows through the diversion hole 642 to the dust collecting plate 50 to clean the dust collecting plate 50.

[0048] See Figure 2 and Figure 3 , specifically, a drain hole 124 is provided in the top plate 122 of the compressor compartment 120 at the water receiving tray, and the refrigerator 1 may further include a drain pipe 70. The first end of the drain pipe 70 is disposed at the bottom of the evaporator of the refrigerator 1, and the second end of the drain pipe 70 is connected to the drain hole 124 to guide the defrost water to the water receiving tray.

[0049] Since the operating temperature of the evaporator of the refrigerator 1 is relatively low, the water vapor in the air condenses on the evaporator after encountering it, resulting in frosting of the evaporator. Therefore, the evaporator of the refrigerator 1 needs to be defrosted regularly to ensure the heat exchange effect of the heat exchanger. The defrosting of the evaporator can be carried out by means of electric heating or the like.

[0050] The first end of the drain pipe 70 can be disposed at the bottom of the evaporator, and the second end is disposed at the drain hole 124. When the evaporator starts to defrost, the defrost water can be discharged into the water receiving tray at the top of the fixed cover 60 through the drain pipe 70, thereby realizing the collection of the defrost water.

[0051] Since a diversion hole 642 is provided in the top wall of the fixed cover 60 at the dust collecting plate 50, the defrost water collected in the water receiving tray can flow into the diversion hole 642, and then the defrost water enters the interior of the fixed cover 60 and flows down along the dust collecting plate 50, thereby cleaning the dust on the dust collecting plate 50 without the need for manual regular cleaning, further improving the user experience.

[0052] In addition, since the compressor 20 delivers high-temperature and high-pressure refrigerant to the condenser 30 during operation, convection heat exchange needs to be carried out on the condenser 30 at this time. Therefore, when the compressor 20 is operating, the ionization device 40 and the dust collecting plate 50 can be powered on for operation. When the compressor 20 is shut down, the ionization device 40 and the dust collecting plate 50 can be powered off and shut down, and at this time, the dust collecting plate 50 can be cleaned. That is to say, the compressor 20, the ionization device 40 and the dust collecting plate 50 work simultaneously, and the cleaning of the dust collecting plate 50 and the operation of the compressor 20 are carried out one after another.

[0053] As is known to those skilled in the art, generally, the defrosting of the evaporator of the refrigerator 1 is carried out when the compressor 20 stops working. That is to say, the cleaning process of the dust collecting plate 50 of the present invention can be synchronized with the defrosting process of the evaporator of the refrigerator 1. Coincidentally, the water source required for cleaning the dust collecting plate 50 of the present invention is the defrosting water of the evaporator of the refrigerator 1. Therefore, the refrigerator 1 of the present invention cleverly combines the process of cleaning the dust collecting plate 50 with the defrosting process of the evaporator of the refrigerator 1, not only realizing the use of defrosting water to clean the dust collecting plate 50 and the recycling of water resources, but also realizing the synchronization of evaporator defrosting and cleaning the dust collecting plate 50, achieving unexpected technical effects.

[0054] See Figure 2 , in some embodiments, the bottom of the cabinet 10 has a bottom plate 130 that serves as the bottom wall of the compressor compartment 120. The bottom plate 130 has an evaporation dish 132. The fixed cover 60 is located above the evaporation dish 132 so that the defrosting water for cleaning the dust collecting plate 50 can flow into the evaporation dish 132.

[0055] The evaporation dish 132 can be an independent dish fixed on the bottom plate 130. The fixed cover 60 is located above the evaporation dish 132. After the defrosting water cleans the dust collecting plate 50, it can flow into the evaporation dish 132 and finally evaporate in the evaporation dish 132.

[0056] See Figure 4 and Figure 5 , Figure 5 is Figure 4 the enlarged view of part A in . In some embodiments, the bottom wall 62 of the fixed cover 60 further has a laterally extending mounting groove 622. The mounting groove 622 is vertically aligned with the diversion hole 642. The bottom of the dust collecting plate 50 extends into the mounting groove 622, and the top of the dust collecting plate 50 is inserted into the diversion hole 642.

[0057] Specifically, the bottom wall 62 of the fixed cover 60 forms a raised portion 624 that is spaced apart from its side wall in the lateral direction. An installation groove 622 is formed between the raised portion 624 and the side wall. The width of the installation groove 622 can be adapted to the thickness of the dust collecting plate 50 to fix the bottom of the dust collecting plate 50.

[0058] The shape of the diversion hole 642 on the top wall of the fixed cover 60 can be adapted to the shape of the dust collecting plate 50, and the height of the dust collecting plate 50 is slightly greater than the height of the fixed cover 60. In this way, when the bottom of the dust collecting plate 50 is fixed to the mounting groove 622, the top of the dust collecting plate 50 can be stuck in the diversion hole 642, making the dust collecting plate 50 more firmly fixed on the fixed cover 60.

[0059] In addition, the width of the diversion hole 642 can also be configured to be greater than the thickness of the dust collecting plate 50, so that the defrosting water can flow smoothly downward through the diversion hole 642.

[0060] SeeFigure 4 Further, the top wall 64 of the fixed cover 60 has a downwardly inclined diversion slope 644 towards the diversion holes 642. In some specific embodiments, there may be two dust collecting plates 50, which are respectively arranged on two side walls 66 of the fixed cover 60, so that two diversion holes 642 can be arranged on both sides of the top wall 64 of the fixed cover 60. In order to facilitate the defrosting water in the water receiving tray to smoothly enter the two diversion holes 642, there may also be two diversion slopes 644, that is, in this embodiment, the top wall 64 of the fixed cover 60 can be arranged to be high in the middle, and the two diversion slopes 644 gradually incline downward from the middle position to both sides until they extend to the two diversion holes 642.

[0061] See Figure 4 In some embodiments, the ionization device 40 may further include a support member 42 and an annular corona electrode 44. The support member 42 is fixed to the bottom wall 62 of the fixed cover 60, and the annular corona electrode 44 is fixed to the top of the support member 42 and faces the condenser 30. In this way, the annular corona electrode 44 can ionize more air at the position facing the condenser 30, so that more dust can obtain charges and the dust removal efficiency can be improved.

[0062] In some specific embodiments, the annular corona electrode 44 may also be a spike corona electrode. The spike corona electrode has strong discharge ability, the discharge points are not easy to be contaminated with dust, the discharge current is balanced, and the dust removal effect is better.

[0063] See Figure 2 and Figure 3 In some embodiments, the refrigerator 1 may further include a cooling fan 80. The cooling fan 80 is arranged between the condenser 30 and the compressor 20 and is configured to promote the formation of a cooling air flow that sequentially flows through the ionization device 40 and the condenser 30.

[0064] An air inlet (not shown in the figure) is opened on one side of the compressor compartment 120 close to the condenser 30 in the transverse direction, and an air outlet (not shown in the figure) is opened on one side close to the compressor 20 in the transverse direction. The cooling fan 80 can promote the air outside the box body 10 to enter the compressor compartment 120 from the air inlet, and sequentially pass through the ionization device 40 and the condenser 30, and finally be discharged from the air outlet, which can not only improve the heat exchange efficiency of the condenser 30, but also improve the dust removal efficiency.

[0065] For the refrigerator 1 of the present invention, since the ionization device 40 is disposed on the side of the condenser 30 away from the compressor 20 and can ionize dust in the air, and the dust collecting plate 50 is disposed between the condenser 30 and the ionization device 40, when the condenser 30 exchanges heat, the heat dissipation air flow can blow from the side with the ionization device 40 to the condenser 30. The heat dissipation air flow can first contact the ionization device 40, and the dust in the heat dissipation air flow can acquire electric charges. After passing through the ionization device 40, the heat dissipation air flow passes through the dust collecting plate 50. The dust collecting plate 50 has electric charges opposite to the polarity of the dust and can adsorb the dust thereon, reducing the dust content in the heat dissipation air flow passing through the dust collecting plate 50 and effectively reducing the probability of dust accumulation on the condenser 30.

[0066] Furthermore, for the refrigerator 1 of the present invention, the fixed cover 60 may further include a skirt portion 68. The skirt portion 68 extends upward from the top wall of the fixed cover 60 to jointly define a water receiving tray with the top wall of the fixed cover 60. The water receiving tray is used to collect the defrost water generated by the evaporator of the refrigerator 1. A diversion hole 642 is provided in the top wall of the fixed cover 60 at the position of the dust collecting plate 50. The defrost water in the water receiving tray flows to the dust collecting plate 50 through the diversion hole 642 to clean the dust collecting plate 50 by using the defrost water.

[0067] Furthermore, for the refrigerator 1 of the present invention, the compressor 20, the ionization device 40 and the dust collecting plate 50 work simultaneously, while the cleaning of the dust collecting plate 50 and the operation of the compressor 20 are carried out successively. The defrosting of the evaporator of the refrigerator 1 is carried out when the compressor 20 stops working. Therefore, the cleaning process of the dust collecting plate 50 can be synchronized with the defrosting process of the evaporator of the refrigerator 1, and the water source required for cleaning the dust collecting plate 50 is the defrost water of the evaporator of the refrigerator 1, achieving synchronization in time.

[0068] At this point, those skilled in the art should recognize that although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and determined to cover all these other variations or modifications.

Claims

1. A refrigerator, characterized in that include: A box body having a compressor cabin at the rear bottom thereof; A refrigeration system, comprising a compressor and a condenser connected to the compressor, wherein the compressor and the condenser are arranged in the compressor compartment at intervals along the lateral direction of the box body; an ionization device, disposed on a side of the condenser facing away from the compressor, and configured to ionize dust in the air; At least one dust collecting plate is disposed between the condenser and the ionization device, the dust collecting plate being configured to have an electrical property opposite to that of the ionization device so as to absorb the ionized dust; and A fixed cover is wrapped around the condenser and has two lateral sides open; and The ionization device is fixed to the bottom wall of the fixed cover, and the dust collecting plate is fixed to the side wall of the fixed cover; The fixed cover body further includes a skirt portion, which extends upward from the top wall of the fixed cover body to define a water receiving tray together with the top wall of the fixed cover body, and the water receiving tray is used to collect defrost water generated by the refrigerator evaporator; and The top wall of the fixed cover body is provided with a guide hole at the dust collecting plate, and the top of the dust collecting plate is inserted into the guide hole; the defrost water in the water receiving tray flows to the dust collecting plate through the guide hole to clean the dust collecting plate.

2. The refrigerator according to claim 1, characterized in that Also includes: The bottom of the box body has a bottom plate as the bottom wall of the compressor cabin, and the bottom plate has an evaporating dish. The fixed cover is located above the evaporating dish so that the defrosting water for cleaning the dust collecting plate flows into the evaporating dish.

3. The refrigerator according to claim 1, characterized in that The bottom wall of the fixed cover body is also provided with a transversely extending mounting groove, the mounting groove is vertically opposite to the guide hole, and the bottom of the dust collecting plate extends into the mounting groove.

4. The refrigerator according to claim 1, characterized in that The top wall of the fixed cover body has a flow guiding slope which is inclined downward toward the flow guiding hole.

5. The refrigerator according to claim 1, characterized in that The top plate of the compressor cabin is provided with a drainage hole at the water receiving tray; and the refrigerator further comprises: A drain pipe, a first end of which is arranged at the bottom of the refrigerator evaporator, and a second end of which is connected to the drain hole to guide the defrost water to the water receiving tray.

6. The refrigerator according to claim 1, characterized in that The ionization device further comprises a support and an annular corona electrode. The support is fixed to the bottom wall of the fixed cover body, and the annular corona electrode is fixed to the top of the support and faces the condenser.

7. The refrigerator according to claim 6, characterized in that The annular corona electrode is a thorn corona electrode.

8. The refrigerator according to claim 1, characterized in that Also includes: The heat dissipation fan is disposed between the condenser and the compressor and is configured to promote the formation of a heat dissipation airflow that flows through the ionization device and the condenser in sequence.

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