Condenser dust removal device and embedded refrigerator

Abstract

The invention provides a condenser dust removal device and an embedded refrigerator. The condenser dust removal device comprises a spraying assembly and a moving driving assembly. Wherein the spraying assembly is used for spraying water to the external condenser; the moving driving assembly is connected with the spraying assembly and used for driving the spraying assembly to move. The spraying assembly is adopted to spray water to the external condenser, and meanwhile, the movable driving assembly is utilized to drive the spraying assembly to move, so that the external condenser can be well dedusted; according to the embedded refrigerator, the condenser dust removal device is arranged in the embedded refrigerator, the external condenser can be automatically subjected to dust removal, the dust removal operation can be completed without disassembling the external condenser, and the problems of heat dissipation and performance of the refrigerator caused by dust accumulation of the external condenser of a press bin are effectively solved.

Description

Technical Field

[0001] This invention belongs to the field of refrigerators, and more specifically, relates to a condenser dust removal device and an embedded refrigerator. Background Technology

[0002] As people's consumption levels rise, their demands for kitchen renovations are increasing. For aesthetic reasons, refrigerators are trending towards built-in designs. However, to integrate the refrigerator seamlessly with the cabinetry, the distance between them is often small. To maximize refrigerator capacity, the back of the refrigerator is pressed against the cabinet, leaving no room for heat dissipation on the back and sides, forcing the use of bottom cooling. Built-in refrigerators use external condensers instead of internal ones, reducing the load on the cabinet. The compressor compartment is separated into two chambers by a condenser fan, utilizing forced convection heat exchange to create a bidirectional cooling system with bottom left exhaust and rear right intake. This eliminates the need for ventilation space on the sides and top, achieving excellent heat dissipation and long-term reliability. However, with prolonged operation, dust accumulates on the condenser fins. If not cleaned regularly, this can cause blockages, reducing heat exchange efficiency and potentially leading to system shutdown and overheating of the compressor.

[0003] Traditional condenser dust removal methods involve completely disassembling and cleaning the condenser, a cumbersome process. This results in long maintenance cycles, causing the condenser to operate out of optimal condition for extended periods and reducing heat exchange efficiency. This is especially problematic for built-in refrigerators, where cleaning the condenser requires removing the refrigerator from the cabinet, which is time-consuming, labor-intensive, and difficult to align upon repositioning. Therefore, dust removal from externally mounted condensers in built-in refrigerators has long been a major pain point in the industry. Summary of the Invention

[0004] The purpose of this invention is to provide a condenser dust removal device and an embedded refrigerator to solve the dust removal problem of the external condenser in the compressor compartment of an embedded refrigerator in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] In a first aspect, the present invention provides a condenser dust removal device for use in an embedded refrigerator, wherein an external condenser is disposed within the compressor compartment of the embedded refrigerator, comprising:

[0007] A spray assembly for spraying water onto the external condenser;

[0008] A mobile drive component is connected to the spray assembly and is used to drive the spray assembly to move.

[0009] Furthermore, the mobile drive assembly includes a power component, a linkage component connected to the spray assembly, and a transmission component that is pulsatorically connected to the power component and the linkage component.

[0010] Furthermore, the power component includes two motors, the transmission component includes two sets of transmission gears, each set of transmission gears includes a driving gear coaxially arranged with the drive shaft of the motor and a driven gear meshing with the driving gear; the linkage component includes two sets of rods, each set of rods includes a driving rod with one end coaxially arranged with the driven gear and a driven rod with one end rotatably connected to the other end of the driving rod, the other end of the driven rod being connected to the spray assembly.

[0011] Furthermore, it also includes a drainage assembly, which includes a first drainage channel disposed inside the power component, a second drainage channel disposed inside the transmission component, and a third drainage channel disposed inside the connecting rod component. The first drainage channel is connected to a water receiving tray located below the evaporator via a water pipe connector. The second drainage channel is connected to the first drainage channel and the third drainage channel. The third drainage channel is connected to the spray assembly.

[0012] Furthermore, the spray assembly includes a water collection seat connected to the third drainage channel, a nozzle for spraying water, and a spray driving component disposed between the water collection seat and the nozzle.

[0013] Furthermore, both the spray assembly and the moving drive assembly are located above the external condenser.

[0014] Furthermore, it also includes a dust collection box, located on the outer side of the bottom of the housing, and connected to the evaporation plate located below the condenser.

[0015] Furthermore, the dust collection box is detachably connected to the housing.

[0016] Furthermore, a gravity sensor for detecting the weight of dust is installed on the dust collection box.

[0017] Secondly, the present invention also provides an embedded refrigerator, including a compressor compartment, wherein a compressor, a condenser fan and an external condenser are disposed in the compressor compartment, and the condenser dust removal device as described above is also included.

[0018] Compared with existing technologies, the beneficial effects of the condenser dust removal device and the built-in refrigerator provided by this invention are as follows: This invention uses a spray assembly to spray water onto the external condenser, and simultaneously uses a moving drive assembly to move the spray assembly, thereby effectively removing dust from the external condenser. Furthermore, by installing a condenser dust removal device inside the built-in refrigerator, the external condenser can be automatically dusted without disassembling it, effectively solving the refrigerator's heat dissipation and performance problems caused by dust accumulation on the external condenser in the compressor compartment. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 The embedded refrigerator structure in this invention Figure 1 ;

[0021] Figure 2 This is a structural diagram of the compressor compartment in this invention;

[0022] Figure 3 This is a diagram showing the airflow path in the compressor compartment of the present invention;

[0023] Figure 4 This is a structural diagram of the condenser dust removal device in this invention;

[0024] Figure 5 This is a partial top view of the condenser dust removal device in this invention;

[0025] Figure 6 This is a water flow path diagram of the condenser dust removal device in this invention;

[0026] Figure 7 The embedded refrigerator structure in this invention Figure 2 ;

[0027] Figure 8 This is a structural diagram of the dust collection box in this invention;

[0028] The main markings in the attached figures are as follows:

[0029] 1. Box body;

[0030] 2. Press chamber;

[0031] 3. External condenser;

[0032] 4. Condenser fan;

[0033] 5. Compressor;

[0034] 6. Condenser dust removal device;

[0035] 61. Spray assembly; 611. Water collection base; 612. Spray drive component; 613. Nozzle;

[0036] 62. Motion drive assembly; 620. First motor; 621. Second motor; 622. First drive gear; 623. First driven gear; 624. Second drive gear; 625. Second driven gear; 626. First drive rod; 627. First driven rod; 628. Second drive rod; 629. Second driven rod;

[0037] 63. Dust collection box;

[0038] 64. Gravity sensor;

[0039] 7. Evaporation plate. Detailed Implementation

[0040] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0041] As people's consumption levels rise, their demands for kitchen renovations are also increasing. For aesthetic reasons, refrigerators are increasingly trending towards built-in designs. To integrate the refrigerator seamlessly with the cabinetry, the distance between the refrigerator and the cabinets is relatively small. To maximize the refrigerator's capacity, the back is flush against the cabinet, leaving no room for heat dissipation on the back and sides, forcing the use of bottom ventilation. Built-in refrigerators use external condensers instead of internal condensers, which reduces the load on the refrigerator body. For example... Figure 3 As shown, the refrigerator's compressor compartment is separated into two chambers by the condenser fan. Forced convection heat exchange via the condenser fan creates a bidirectional cooling system with airflow from the bottom left and from the rear right. No additional space is needed on the sides or top for heat dissipation, achieving excellent heat dissipation and long-term reliability. However, with prolonged operation, dust accumulates on the condenser fins. If not cleaned regularly, this can cause blockages, reducing heat exchange efficiency and potentially leading to system shutdown and excessively high compressor temperatures.

[0042] Traditional condenser dust removal methods involve completely disassembling and cleaning the condenser, a cumbersome process. This results in long maintenance cycles, causing the condenser to operate out of optimal condition for extended periods and reducing heat exchange efficiency. This is especially problematic for built-in refrigerators, where cleaning the condenser requires removing the refrigerator from the cabinet, which is time-consuming, labor-intensive, and difficult to align upon repositioning. Therefore, dust removal from externally mounted condensers in built-in refrigerators has long been a major pain point in the industry.

[0043] Please see Figures 1 to 6 The condenser dust removal device 6 provided by the present invention is applied to an embedded refrigerator. An external condenser 3 is provided in the compressor compartment 2 of the embedded refrigerator. The condenser dust removal device 6 includes a spray assembly 61 and a moving drive assembly 62. The spray assembly 61 is used to spray water onto the external condenser 3. The moving drive assembly 62 is connected to the spray assembly 61 and is used to drive the spray assembly 61 to move.

[0044] This invention employs a spray assembly 61 to spray water onto the external condenser 3, while simultaneously using a moving drive assembly 62 to move the spray assembly 61, thereby effectively removing dust from the external condenser 3. Furthermore, by installing a condenser dust removal device 6 inside the embedded refrigerator, dust removal of the external condenser 3 can be automatically performed without disassembling it, effectively solving the refrigerator's heat dissipation and performance problems caused by dust accumulation on the external condenser 3 in the compressor compartment 2.

[0045] The mobile drive assembly 62 includes a power component, a linkage component connected to the spray assembly 61, and a transmission component that is drively connected to the power component and the linkage component.

[0046] This invention employs a power component to provide stable driving force, which is then precisely transmitted to the connecting rod component via a transmission component. The connecting rod component then drives the spray assembly 61 to move along a preset trajectory and speed. This structure makes the spray assembly 61 move more smoothly and reliably, enabling more efficient water spraying and dust removal from the external condenser 3, significantly improving dust removal effect and efficiency, while also enhancing the stability and durability of the entire condenser dust removal device 6.

[0047] like Figure 4 and Figure 5 As shown, the power component includes two motors, the transmission component includes two sets of transmission gears, each set of transmission gears includes a driving gear coaxially arranged with the drive shaft of the motor and a driven gear meshing with the driving gear; the linkage component includes two sets of rods, each set of rods includes a driving rod with one end coaxially arranged with the driven gear, and a driven rod with one end rotatably connected to the other end of the driving rod, the other end of the driven rod being connected to the spray assembly 61.

[0048] Specifically, the two motors are designated as a first motor 620 and a second motor 621. The two sets of transmission gears are designated as a first set of transmission gears and a second set of transmission gears. The first set of transmission gears includes a first driving gear 622 and a first driven gear 623, and the second set of transmission gears includes a second driving gear 624 and a second driven gear 625. The linkage assembly includes two sets of links, designated as a first set of links and a second set of links. The first set of links includes a first driving link 626 and a first driven link 627, and the second set of links includes a second driving link 628 and a second driven link 629. The first driving link 626, the first driven link 627, the second driving link 628, and the second driven link 629 together constitute a four-bar linkage.

[0049] In this configuration, the drive shaft of the first motor 620 is coaxially arranged with the first driving gear 622, the first driving gear 622 meshes with the first driven gear 623, the first driven gear 623 is coaxially arranged with one end of the first driving rod 626, the other end of the first driving rod 626 is rotatably connected to one end of the first driven rod 627, and the other end of the first driven rod 627 is connected to the spray assembly 61. Similarly, the drive shaft of the second motor 621 is coaxially arranged with the second driving gear 624, the second driving gear 624 meshes with the second driven gear 625, the second driven gear 625 is coaxially arranged with one end of the second driving rod 628, the other end of the second driving rod 628 is rotatably connected to one end of the second driven rod 629, and the other end of the second driven rod 629 is connected to the spray assembly 61.

[0050] The movement principle is as follows: the first motor 620 drives the first driving gear 622 to rotate, which in turn drives the first driven gear 623 to rotate. The rotation of the first driven gear 623 drives the first driving rod 626 to rotate, which in turn drives the first driven rod 627 to rotate. Simultaneously, the second motor 621 drives the second driving gear 624 to rotate, which in turn drives the second driven gear 625 to rotate. The rotation of the second driven gear 625 drives the second driving rod 628 to rotate, which in turn drives the second driven rod 629 to rotate. By controlling the speed and direction of rotation of the first motor 620 and the second motor 621, the movement of the spray assembly 61 can be achieved.

[0051] By independently driving two sets of transmission gears and connecting rods with dual motors, multi-dimensional motion control of the spray assembly 61 is achieved. The advantages are threefold: First, the coordinated operation of the two motors enables the spray assembly 61 to achieve a complex motion trajectory, completing both linear reciprocating motion and arc-shaped oscillation through speed differences, significantly expanding the spray coverage area. Second, by adjusting the speed ratio of the two motors separately, the oscillation angle and speed of the spray assembly 61 can be precisely controlled to meet the differentiated cleaning needs of condensers of different sizes. Third, when one motor or transmission component fails, the other drive system can still maintain basic functionality; this redundancy design greatly improves the operational reliability of the equipment. Furthermore, the structure adopts a modular design, allowing the motors, gear sets, and connecting rods to be independently disassembled and replaced, facilitating later maintenance.

[0052] In addition, such as Figure 6 As shown, the condenser dust removal device 6 also includes a drainage assembly. The drainage assembly includes a first drainage channel located inside the power component, a second drainage channel located inside the transmission component, and a third drainage channel located inside the connecting rod component. The first drainage channel is connected to a water receiving pan located below the evaporator via a water pipe connector. The second drainage channel is connected to the first and third drainage channels. The third drainage channel is connected to the spray assembly 61.

[0053] It is understandable that built-in refrigerators automatically defrost periodically to prevent excessive frost buildup on the evaporator, which would affect cooling performance. During defrosting, the frost on the evaporator melts into water, which is collected by a drip tray located inside the cabinet 1 and below the evaporator. The drip tray has drain holes, through which the defrosting water flows into the compressor compartment 2, and is then collected by the evaporator plate 7 located below the condenser and evaporates naturally. This invention introduces the defrosting water into the spray assembly 61 for dust removal via the drain assembly. This process does not require additional water, saving water resources and reducing the risk of pollution from manual water addition, fully demonstrating the environmental friendliness and high efficiency of the device design. Of course, in other embodiments, water can also be introduced from outside the cabinet 1 to supply water to the spray assembly 61 to ensure sufficient water supply.

[0054] In practical applications, both the power and transmission components are equipped with housings, and drainage channels can be opened inside the housings, which also helps with heat dissipation and cooling. As for the connecting rod components, the first driving rod 626 and the first driven rod 627 can be made hollow inside to form drainage channels, which simplifies the structure and saves costs.

[0055] Among them, such as Figure 4 As shown, the spray assembly 61 includes a water collection seat 611 connected to the third drainage channel, a nozzle 613 for spraying water, and a spray drive component 612 disposed between the water collection seat 611 and the nozzle 613.

[0056] The spray drive component 612 can employ a turbine rotation mechanism. This mechanism generates negative pressure or a pressure difference through rotation, drawing defrost water from the water storage area and accelerating it. The water is then ejected as a high-speed jet through the nozzle 613, thus cleaning and removing dust from the external condenser 3. Furthermore, a sensor can be installed in the water accumulator 611 to detect the weight of the defrost water. When the defrost water in the water accumulator 611 reaches a set weight, the overall control module issues a command to control the turbine rotation mechanism, accelerating the ejection of the defrost water through the nozzle 613 to clean and remove dust from the external condenser 3.

[0057] This invention employs a water collection base 611 to effectively collect defrosting water flowing from the third drainage channel, providing a stable water source for subsequent spraying operations. The spraying drive component 612, as a key power source, provides stable and continuous power, ensuring that the water in the water collection base 611 can be smoothly sprayed out through the nozzle 613, and that the flow rate and pressure of the sprayed water are maintained within a suitable range. This further improves the working performance and reliability of the entire spraying assembly 61, enabling the dust removal operation of the condenser to be carried out stably and efficiently.

[0058] Among them, such as Figure 1 and Figure 4 As shown, both the spray assembly 61 and the moving drive assembly 62 are located above the external condenser 3.

[0059] This layout design fully utilizes gravity, allowing defrosting water to naturally collect in the water collection base 611 and flow smoothly to the nozzle 613 under the guidance of the spray drive component 612. This reduces resistance during water flow and improves spraying efficiency. Simultaneously, the moving drive component 62, located above the external condenser 3, allows for easy movement of the spray component 61 above the external condenser 3, achieving comprehensive and uniform cleaning and dust removal of the condenser. This ensures effective cleaning of all parts of the condenser, improving its heat dissipation and extending its service life.

[0060] Of course, in other embodiments, the spray assembly 61 and the moving drive assembly 62 can also be arranged on the side of the condenser, which facilitates the introduction of water into the spray assembly 61 from outside the housing 1 or into the evaporator plate 7.

[0061] In addition, such as Figure 2 , Figure 7 and Figure 8 As shown, the condenser dust removal device 6 also includes a dust collection box 63, located on the outer side of the bottom of the housing 1, and connected to the evaporation plate 7 located below the condenser.

[0062] The present invention adopts a design in which the evaporation plate 7 is connected to the dust collection box 63. The dust collection box 63 can effectively collect water, dust and impurities washed off the condenser, preventing these contaminants from accumulating inside the box 1, thereby keeping the inside of the box 1 clean and hygienic.

[0063] The dust collection box 63 is detachably connected to the housing 1. This detachable structure of the dust collection box 63 allows users to easily remove and clean it periodically, further improving convenience and hygiene.

[0064] The dust collection box 63 is equipped with a gravity sensor 64 to detect the weight of the dust. The gravity sensor 64 can monitor the weight of the dust inside the dust collection box 63 in real time. When the dust accumulates to a certain level, the overall control module issues an alert, reminding the user to clean the dust collection box 63 promptly, ensuring the normal operation and effective dust removal of the condenser dust removal device 6. This design not only improves the efficiency and effectiveness of condenser dust removal but also enhances the convenience and hygiene of using the refrigerator.

[0065] like Figure 1 and Figure 2 As shown, the embedded refrigerator provided by the present invention includes a cabinet 1, a compressor compartment 2 disposed at the bottom of the cabinet 1, a compressor 5, a condenser fan 4, an external condenser 3 and an evaporator plate 7 located below the external condenser 3 disposed in the compressor compartment 2, an evaporator disposed above the compressor compartment 2 and a water receiving tray located below the evaporator, and also includes a condenser dust removal device 6, which is fixed to the refrigerator base plate assembly by fasteners.

[0066] In practical applications, the built-in refrigerator's cabinet 1 is placed inside a kitchen cabinet. To enhance the overall aesthetics of the kitchen, the gap between the cabinet 1 and the sides of the cabinet should be as small as possible, generally 3mm according to national standards. Simultaneously, to maximize the built-in refrigerator's volume, the back of the cabinet 1 must be flush against the wall, and heat dissipation occurs through the bottom. For built-in refrigerators with this structure, dust can only enter the compressor compartment 2 through the heat dissipation channels at the bottom of the cabinet 1. The external condenser 3 consists of fins and piping. In the high-temperature and high-humidity environment of the compressor compartment 2, dust gradually accumulates and deposits on the fins, making it difficult to remove. Furthermore, due to the size of the external condenser 3, directly collecting defrost water and pouring it onto it will not achieve a good dust removal effect.

[0067] Based on this, the present invention provides a novel condenser dust removal device 6, which includes a spray assembly 61 and a moving drive assembly 62 located above the external condenser 3; wherein, the spray assembly 61 is used to spray water onto the external condenser 3; the moving drive assembly 62 is connected to the spray assembly 61 and is used to drive the spray assembly 61 to move; the moving drive assembly 62 includes a first motor 620, a second motor 621, a first driving gear 622, a first driven gear 623, a second driving gear 624, a second driven gear 625, a first driving rod 626, a first driven rod 627, a second driving rod 628, and a second driven rod 629, etc.; the spray assembly 61 includes a water collection seat 611, a nozzle 613, and a spray drive component 612, etc.; the spray assembly 61 introduces defrosting water from a water receiving tray located below the evaporator through a drainage assembly. The device also includes a dust collection box 63 located on the outer side of the bottom of the housing. The dust collection box 63 is connected to the evaporation plate 7 located below the condenser, and the dust collection box 63 is detachably connected to the housing 1. A gravity sensor 64 for detecting the weight of dust is installed on the dust collection box 63. The device also includes a support plate and the like for mounting and fixing.

[0068] Based on the specific structure of the condenser dust removal device 6, its dust removal principle is as follows:

[0069] For the spray assembly 61, under the action of the spray drive component 612, the defrosting water in the water collection seat 611 is sprayed onto the external condenser 3 through the nozzle 613. For the movement drive component 62, the first motor 620 drives the first drive gear 622 to rotate, which in turn drives the first driven gear 623 to rotate. The rotation of the first driven gear 623 drives the first drive rod 626 to rotate, which in turn drives the first driven rod 627 to rotate. At the same time, the second motor 621 drives the second drive gear 624 to rotate, which in turn drives the second driven gear 625 to rotate. The rotation of the second driven gear 625 drives the second drive rod 628 to rotate, which in turn drives the second driven rod 629 to rotate. The first driven rod 627 and the second driven rod 629 together drive the spray assembly 61 to move. By controlling the speed and direction of rotation of the first motor 620 and the second motor 621, and adjusting the initial speed of the first drive gear 622 and the second drive gear 624, the nozzle 613 moves in a plane above the condenser, thereby enabling efficient dust removal from the external condenser 3. At this time, the water flowing down from the external condenser 3, carrying dust, flows through the evaporator plate 7 and falls into the dust collection box 63. When the weight of the dust that has settled to the bottom of the dust collection box 63 exceeds a set value, the whole machine control module will issue a warning to remind the user to clean the dust in the dust collection box 63.

[0070] This invention, by adding a condenser dust removal device 6 inside the built-in refrigerator, eliminates the need for users to pull the refrigerator body 1 out of the cabinet or disassemble the compressor compartment 2 to clean the external condenser 3. This fundamentally solves the dust removal problem for both the external and internal condensers 3 in the compressor compartment 2, extending the service life of the external condenser 3. Furthermore, this invention includes an automatic alarm system to remind users to clean the dust removal box, preventing refrigerator heat dissipation and performance problems caused by dust accumulation on the external condenser 3 in the compressor compartment 2.

[0071] It should be noted that the terminology used above is for describing specific embodiments only and is not intended to limit the exemplary embodiments of the present invention. When the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. The order of execution of actions, steps, etc., in the apparatus and methods shown in the specification and drawings can be implemented in any order unless a specific order is expressly specified, and as long as the output of the preceding process is not used in the subsequent process. Similar sequential terms used for ease of description do not imply that such an order must be followed.

[0072] Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A condenser dust removal device applied to an embedded refrigerator, wherein an external condenser is arranged in a press bin of the embedded refrigerator, and the condenser dust removal device is characterized in that, The condenser dust removal device comprises a spraying assembly for spraying water to the external condenser, and a moving driving assembly connected with the spraying assembly for driving the spraying assembly to move. The moving driving assembly comprises a power component, a connecting rod component connected with the spraying assembly, and a transmission component in transmission connection with the power component and the connecting rod component. The power component comprises two motors, and the transmission component comprises two groups of transmission gears, each group of transmission gears comprising a driving gear coaxially arranged with a driving shaft of the motor, and a driven gear in mesh with the driving gear; the connecting rod component comprises two groups of rod components, each group of rod components comprising a driving rod having one end coaxially arranged with the driven gear, and a driven rod having one end rotationally connected with the other end of the driving rod, and the other end of the driven rod being connected with the spraying assembly.

2. The condenser dust removal device according to claim 1, wherein The condenser dust removal device further comprises a drainage assembly, which comprises a first drainage channel arranged inside the power component, a second drainage channel arranged inside the transmission component, and a third drainage channel arranged inside the connecting rod component, the first drainage channel being in communication with a water receiving tray arranged below the evaporator through a water pipe joint, the second drainage channel being in communication with the first drainage channel and the third drainage channel, and the third drainage channel being in communication with the spraying assembly.

3. The condenser dust removal device according to claim 2, wherein The spraying assembly comprises a water accumulation seat in communication with the third drainage channel, a nozzle for spraying water, and a spraying driving component arranged between the water accumulation seat and the nozzle.

4. The condenser dust removal device according to claim 2, wherein The spraying assembly and the moving driving assembly are both arranged above the external condenser.

5. The condenser dust removal apparatus according to claim 4, wherein The condenser dust removal device further comprises a dust collection box arranged outside the bottom of the box body and in communication with an evaporating tray arranged below the condenser.

6. The condenser dust removal apparatus according to claim 1, wherein The dust collection box is detachably connected with the box body.

7. The condenser dust removal apparatus according to claim 1, wherein A gravity sensor for detecting the weight of dust is arranged on the dust collection box. The condenser dust removal device is arranged in a compressor chamber, and the compressor chamber is provided with a compressor, a condensing fan and an external condenser.

8. The condenser dust removal device according to claim 7, wherein ​ 9. The condenser dust removal apparatus according to claim 7, wherein ​ 10. A built-in refrigerator, characterized by, ​

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