Oleophobic self-cleaning refrigerator condenser combination

Abstract

The utility model discloses an oleophobic self-cleaning refrigerator condenser combination, which comprises a condenser with an oleophobic coating on the surface, and is characterized in that a water collection and drainage tank is arranged right above the condenser, and a water collector is arranged below the condenser; a partial length section of an evaporation heating pipe is contained in the water collecting disc, and the evaporation heating pipe is connected between the condenser and the compressor. Due to the design of the oleophobic coating, dirt is not prone to being gathered on the condenser body, the residence time of condensate water on the surface of the condenser is shortened, the condenser is further cleaned through collection and utilization of the condensate water of the evaporator, and the heat exchange efficiency of the condenser is improved through the cooling fins; due to discharge of uniformly distributed condensate water, the water discharge amount is relatively increased, the contact area of water and the fins is increased, and the cleaning efficiency is improved; due to the fins which are correspondingly arranged in an up-and-down inclination angle mode, condensate water can pass through all the fins, dirt on each layer of the fins is taken away, and the condensate water is fully utilized.

Description

Technical Field

[0001] This utility model relates to refrigerator refrigeration component technology, and in particular to an oleophobic and self-cleaning refrigerator condenser assembly. Background Technology

[0002] The refrigerator condenser is a device that cools and converts the high-temperature, high-pressure gaseous refrigerant from the compressor into a liquid state. It releases heat from the refrigerant into the surrounding environment to maintain the low temperature inside the refrigerator, making it one of the key components of the refrigerator's refrigeration system. The refrigerator evaporator is a device that converts the low-temperature, low-pressure liquid refrigerant from the expansion valve into a gaseous state. By absorbing heat from the inside of the refrigerator, it lowers the internal temperature, making it another key component of the refrigeration system. Household refrigerators are often located in high-oil-dust environments such as kitchens, and grease and dust easily accumulate on the condenser surface. Long-term neglect of cleaning will reduce the condenser's heat exchange performance and increase the refrigerator's energy consumption.

[0003] Existing conventional condensers typically have no surface treatment or only simple anti-corrosion treatment, making them prone to oil and dirt accumulation. Once oil and other impurities accumulate on the condenser surface, they are difficult to clean and often incomplete, thus affecting the condenser's heat exchange performance and increasing energy consumption. Therefore, cleaning the condenser surface has become a technical problem. There are designs in this area in publicly available technology, such as patent publication number CN113390223A, which describes a condenser self-cleaning structure and refrigeration equipment. This includes a collection tray located below the condenser, a drain pipe, and a water receiving tray. The water receiving tray is positioned above the condenser and has drainage holes. The outlet end of the drain pipe is connected to the water receiving tray, and the defrosting water from the evaporator, guided through the drain pipe to the water receiving tray, flows through the drainage holes to spray and clean the condenser. For example, patent publication number CN218583530U discloses an automatic cleaning assembly and refrigerator, including a cleaning evaporator connected in parallel with a freezing evaporator in the refrigeration circuit. A frosting circuit is formed between the outlet of the cleaning evaporator, the compressor, the condenser, the capillary tube, and the inlet of the cleaning evaporator, causing frost to form on the surface of the cleaning evaporator. It also includes a rinsing assembly for collecting defrost water generated during defrosting of the cleaning evaporator and using this water to clean the area to be cleaned. While these methods are acceptable, the disclosed products all have several drawbacks. For instance, the former uses a constricted spray method, making the spray nozzles prone to clogging and causing the cleaning system to fail. Because the spraying causes overflow into the drip tray, an overflow to the collection tray is also included, resulting in significant waste of condensate. Furthermore, oil and dirt adhere to the surface of ordinary condenser tubes, making cleaning more difficult and the effect less than ideal. Summary of the Invention

[0004] The purpose of this invention is to solve the above problems by providing an oleophobic and self-cleaning refrigerator condenser assembly. It has both anti-corrosion and hydrophobic and oleophobic properties, which can delay or remove the accumulation of oil and dust on the surface of the condenser, extend the effective service life of the condenser, eliminate the need for manual cleaning, and save energy and are environmentally friendly.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: an oleophobic self-cleaning refrigerator condenser assembly, including a condenser with an oleophobic coating on its surface, characterized in that a water collection tank is provided directly above the condenser and a water collection pan is provided below the condenser; a portion of the length of an evaporation heating tube is contained in the water collection pan, and the evaporation heating tube is connected between the condenser and the compressor.

[0006] In the aforementioned oleophobic and self-cleaning refrigerator condenser assembly, preferably, the condenser has a multi-layer fin structure, each layer consisting of a number of individual fins, with each individual fin arranged at equal intervals.

[0007] In the aforementioned oleophobic self-cleaning refrigerator condenser assembly, preferably, the condenser fins are at an acute angle to the horizontal, and the bottom of each fin layer and the top of the next fin layer are located on the same vertical plane.

[0008] In the aforementioned oleophobic self-cleaning refrigerator condenser assembly, preferably, the water collection tank has a conical structure that is larger at the top and smaller at the bottom, wherein a water collection trough is provided around the inner side of the upper end, the inner side of the water collection trough is lower than the outer side, and a drain outlet is provided at the lower end of the water collection tank.

[0009] In the aforementioned oleophobic self-cleaning refrigerator condenser assembly, preferably, the area of ​​the drain outlet is less than or equal to the cross-sectional area of ​​the condenser.

[0010] In the aforementioned oleophobic self-cleaning refrigerator condenser assembly, preferably, the length of the evaporator heating tube contained in the water collection pan is arranged in a curved tube structure on the bottom surface of the water collection pan.

[0011] In the aforementioned oleophobic self-cleaning refrigerator condenser assembly, preferably, the surface of the drain tank is provided with an oleophobic coating.

[0012] This technical solution is designed from the following aspects:

[0013] First, an oleophobic coating is applied to the surface. This device first applies an oleophobic coating to functional components that come into contact with oil and dust, such as the condenser and water collection tank, as well as self-cleaning components. This gives the device itself corrosion resistance, water repellency, and oleophobic properties, making it less likely for oil, dust, and other dirt to accumulate on the entire surface of the device. At the same time, it reduces the residence time of condensate on the condenser surface.

[0014] Secondly, the overall structure of the device. A water collection tank is installed directly above the condenser to collect condensate from the evaporator. A water collection pan is installed below the condenser to collect the water after the condenser has been cleaned. The water collection pan accommodates a portion of the evaporation heating tube, allowing the condensate to evaporate at high temperatures through the evaporation heating tube, thus completing the recycling process.

[0015] Thirdly, the components are rationally designed. Since the evaporator condensate is generated irregularly and the water droplets do not flow evenly downwards on their own, the drainage tank in this device has a surrounding water collection trough. When the entire collection trough is full of water, the condensate is evenly distributed downwards through overflow, which relatively increases the drainage volume and expands the contact area between the water and the fins, so that the entire fin area below can be sprayed with condensate. The drainage outlet area of ​​the drainage tank is less than or equal to the cross-sectional area of ​​the condenser, ensuring that the condensate does not flow outside the fins.

[0016] Furthermore, the reasonable fin spacing of this device ensures the smooth passage of water droplets. The vertically and horizontally inclined fin arrangement allows water from the upper layer to flow onto the lower layer, ensuring that condensate passes through each fin layer, improving the utilization rate of condensate, and finally collecting it in the water collection tray for further use.

[0017] Fourth, it achieves cleanliness, cooling, and energy saving. The collected evaporator condensate is used to clean the condenser. As long as the refrigerator is working, condensate will be continuously produced, thus cleaning the condenser continuously. The oleophobic coating on the surface of the condenser fins provides a basis for easy cleaning and non-sticking. The collected condensate is fully utilized, cleaning the condenser while cooling the fins, thereby increasing the heat exchange efficiency of the condenser.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the oleophobic coating design makes it difficult for dirt to accumulate on the condenser body and reduces the residence time of condensate on the condenser surface; the collection and utilization of evaporator condensate further cleans the condenser, and the cooling fins increase the heat exchange efficiency of the condenser; the uniformly distributed condensate discharge relatively increases the drainage volume, increases the contact area between water and fins, and improves cleaning efficiency; the fins arranged with corresponding upper and lower inclination angles allow condensate to pass through all fins, carrying away dirt from each layer of fins, so that the condensate is fully utilized. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of a drainage tank structure according to the present invention.

[0021] Figure 3 yes Figure 2 The right view.

[0022] Figure 4 This is a schematic diagram of a partial structure of a condenser fin assembly according to the present invention.

[0023] Figure 5 This is a schematic diagram of the connection structure between a condenser and an evaporator heating tube according to this utility model.

[0024] Figure 6 yes Figure 5 The right view.

[0025] Figure 7 This is a top view of an evaporation heating tube according to this utility model.

[0026] In the diagram: 1-Water collection tank, 101-Water collection trough, 102-Drain outlet, 2-Condenser, 201-Fins, 202-Coil, 3-Outer ring channel, 4-Water collection tray. Detailed Implementation

[0027] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0028] This embodiment describes an oleophobic, self-cleaning refrigerator condenser assembly, such as... Figure 1 As shown, the refrigerator includes a condenser 2 with an oleophobic coating on its surface, a drain tank 1 directly above the condenser 2, and a water collection pan 4 below the condenser 2. The drain tank 1 collects condensate from the refrigerator evaporator, and the water collection pan 4 contains a portion of the length of an evaporator heating tube 3, which is connected between the condenser 2 and the refrigerator compressor.

[0029] The following is a detailed explanation of each component:

[0030] See Figure 2 , Figure 3 The water collection and drainage tank 1 has a generally large upper and small lower quadrangular pyramid structure. The upper inner side is provided with a water collection trough 101. The water collection troughs 101 are connected and at the same level. The inner side of the water collection trough 101 is lower than the outer side. The lower end of the water collection and drainage tank 1 is provided with a rectangular drain outlet 102. The area of ​​the drain outlet 102 is slightly smaller than the cross-sectional area of ​​the condenser 2. Specifically, the drain outlet 102 corresponds to the range of the fins 201 of the condenser 2 cross-section to ensure that the condensate does not flow outside the fins.

[0031] The inner and outer surfaces of the water collection and drainage tank 1 are coated with an oleophobic coating.

[0032] Condenser 2 has a multi-layer finned structure 201, such as Figure 4 , Figure 5 The 8-layer structure shown consists of a group of individual fins in each layer. These fins are arranged at equal intervals and connected in series by coils 202. The oleophobic coating on the surface of the condenser includes the surfaces of components such as fins 201 and coils 202.

[0033] All the fins 201 of the condenser 2 are inclined at an equal acute angle to the horizontal, such as 20°. The bottom of each layer of fins 201 and the top of the next layer of fins 201 are located on the same vertical plane, so that water from the upper layer can flow to the fins of the lower layer, and so on, to ensure that condensate can pass through each layer of fins.

[0034] The evaporative heating tube 3, housed in the water collection pan 4, has a section of its length arranged in a curved tube structure on the bottom surface of the water collection pan, such as... Figure 6 , Figure 7 As shown, generally, the evaporation heating tube 3 is arranged to cover the bottom surface of the water collection pan 4.

[0035] Working principle and application:

[0036] This device uses a water collection tank 1 to collect condensate from the refrigerator evaporator. The collected water first gathers in a water collection trough 101. When the entire water collection trough 101 is full, the water flows down the inner surface of the cone-shaped water collection tank 1 around the circumference of the water collection trough 101, and then flows from the drain outlet 102 onto the condenser 2 directly below. The first layer of fins 201 in the condenser 2 is cleaned by the condensate and undergoes heat exchange. The water flowing out of the first layer of fins 201 enters the top of the next layer of fins 201, and the first layer of fins 201 is cleaned by the condensate and undergoes heat exchange from top to bottom. This process continues until the bottom layer of fins 201 is cleaned by the condensate and undergoes heat exchange. The water finally flows into a water collection pan 4. The water entering the water collection pan 4 is evaporated by the high temperature of the evaporation heating tube 3, thus completing the recycling process.

[0037] This device not only solves the problem of oil and dust in the air adhering to the surface of the refrigerator condenser, but also enables the condenser 2 to achieve a certain amount of heat exchange, allowing the refrigerator to maintain good heat exchange efficiency.

[0038] The above embodiments are illustrative of the present invention and not intended to limit it. Although the present invention has been described in conjunction with preferred embodiments, it should be understood that the present invention is not limited to the preferred embodiments. Those skilled in the art can make various equivalent modifications and substitutions to the technical solutions of the present invention based on its teachings. Therefore, the scope of the present invention should be defined by the claims, and all such equivalent modifications and substitutions fall within the protection scope of the present invention.

Claims

1. An oleophobic self-cleaning refrigerator condenser assembly, comprising a condenser (2) with an oleophobic coating on its surface, characterized in that... A collection tank (1) for collecting evaporator condensate is provided directly above the condenser, and a water collection pan (4) is provided below the condenser; a section of the evaporator heating tube (3) is contained in the water collection pan, and the evaporator heating tube is connected between the condenser and the compressor.

2. The oleophobic self-cleaning refrigerator condenser assembly according to claim 1, characterized in that, The condenser (2) has a multi-layer finned (201) structure, each layer is composed of a number of individual fins, and each individual fin is arranged at equal intervals.

3. The oleophobic self-cleaning refrigerator condenser assembly according to claim 2, characterized in that, The fins (201) of the condenser (2) are at an acute angle to the horizontal, and the bottom of each layer of fins and the top of the next layer of fins are located on the same vertical plane.

4. The oleophobic self-cleaning refrigerator condenser assembly according to claim 1, characterized in that, The collection and drainage box (1) has a cone-shaped structure that is larger at the top and smaller at the bottom. A water collection trough (101) is provided around the inner side of the upper end. The inner side of the water collection trough is lower than the outer side. A drain outlet (102) is provided at the lower end of the collection and drainage box.

5. The oleophobic self-cleaning refrigerator condenser assembly according to claim 4, characterized in that, The area of ​​the drain outlet (102) is less than or equal to the cross-sectional area of ​​the condenser (2).

6. The oleophobic self-cleaning refrigerator condenser assembly according to claim 1, characterized in that, The evaporative heating tube (3) contained in the water collection pan (4) has a portion of its length arranged in a curved tube structure on the bottom surface of the water collection pan.

7. The oleophobic self-cleaning refrigerator condenser assembly according to claim 1, characterized in that, The surface of the drainage tank (1) is provided with an oleophobic coating.

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