Air return and drainage combined structure of air-cooled refrigerator

Abstract

The utility model discloses an air return and drainage combined structure of an air-cooled refrigerator, which comprises a main body unit, a water return unit and a water drainage unit, and the guide unit comprises an air return pipe and a water drainage pipe, the air return pipe is fixedly communicated with the combination frame, the air return pipe is transversely bent, and the water drainage pipe is fixedly communicated with the combination frame. According to the air-cooled refrigerator, the air return pipe and the water drainage pipe are combined in the air-cooled refrigerator through the combination frame and are arranged in a staggered mode, heat of return air is transmitted to condensate water, cold and heat exchange is achieved, the temperature of the return air can be adjusted, the burden of a refrigerating system of the air-cooled refrigerator is reduced, and the energy consumption requirement of the air-cooled refrigerator is lowered; return air enters the hollow box, impurities are intercepted by the filter plate, safety and quality of food in the air-cooled refrigerator are guaranteed, drained water is led into the hollow box through the three-way valve, under guiding of the inclined plate, condensate water cleans the impurities attached to the filter plate, and air return is kept unobstructed.

Description

Technical Field

[0001] This utility model relates to the technical field of air-cooled refrigerators, and in particular to a combined air return and drainage structure for an air-cooled refrigerator. Background Technology

[0002] Air-cooled refrigerators are a type of refrigerator that uses forced air circulation for cooling. They are equipped with an evaporator and a fan. After the evaporator cools down, the fan blows cold air to every corner of the refrigerator, which quickly cools down and keeps food fresh. Air-cooled refrigerators also have a more uniform internal temperature and do not frost up, which can effectively reduce the trouble of manual defrosting for users. They are widely used in modern homes and commercial places.

[0003] In existing technologies, the return air and drainage structures of air-cooled refrigerators are often independent and lack effective integration. This is not conducive to the efficient utilization of heat and condensate, resulting in high energy consumption of the refrigeration system. Furthermore, the return air can easily carry impurities into the pipes and refrigerator, which can cause bacteria to grow on the food and produce odors, affecting food safety and quality. At the same time, it can block the return air pipes, which is not conducive to the long-term stable operation of air-cooled refrigerators. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the above-mentioned combined air return and drainage structure of the air-cooled refrigerator, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a combined air return and drainage structure for an air-cooled refrigerator. This structure aims to solve the problem that "the air return and drainage structures of air-cooled refrigerators are often independent and lack effective integration, which is not conducive to the efficient utilization of heat and condensate, resulting in high energy consumption of the refrigeration system. In addition, the return air can easily carry impurities into the pipes and the refrigerator, which can easily cause bacteria to grow on the food in the refrigerator and produce odors, affecting the safety and quality of the food. At the same time, it can block the return air pipes, which is not conducive to the long-term stable operation of the air-cooled refrigerator."

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: including:

[0008] The main unit includes a connecting frame, which is a square hollow structure.

[0009] The guide unit includes a return air duct and a drain pipe. The return air duct is fixedly connected to the connecting frame and is arranged in a horizontally curved manner. The drain pipe is fixedly connected to the connecting frame and is arranged in a longitudinally curved manner. The drain pipe and the return air duct are arranged in an interlaced manner. A filter assembly is provided on the connecting frame, and a flushing assembly is provided on the drain pipe.

[0010] As a preferred embodiment of the combined air return and drainage structure of the air-cooled refrigerator described in this utility model, the filter assembly includes a hollow box, which is fixedly connected to the connecting frame. A filter plate is fixedly connected to the inner wall of the hollow box. Two conduits are fixedly connected to the side of the return air duct near the hollow box. The other ends of the two conduits movably pass through the connecting frame and the hollow box. A first electric valve is provided on the return air duct.

[0011] As a preferred embodiment of the combined air return and drainage structure of the air-cooled refrigerator described in this utility model, the flushing assembly includes a three-way valve, which is connected to the drain pipe. The bottom end of the three-way valve moves through the connecting frame and the hollow box. Two inclined plates are fixedly connected to the inner wall of the hollow box.

[0012] As a preferred embodiment of the combined air return and drainage structure of the air-cooled refrigerator described in this utility model, the hollow box has a collection cover threadedly connected to both sides of the side away from the connecting frame. A vertical pipe is fixedly connected to each of the two collection covers. A mesh plate is fixedly connected inside each of the two vertical pipes. A second electric valve is provided on each of the two vertical pipes. The aperture of the two mesh plates is smaller than the aperture of the filter plate.

[0013] As a preferred embodiment of the combined air return and drainage structure of the air-cooled refrigerator described in this utility model, wherein: an mounting plate is fixedly connected to the connecting frame, and two mounting plates are provided, which are arranged symmetrically.

[0014] As a preferred embodiment of the combined air return and drainage structure of the air-cooled refrigerator described in this utility model, the air inlet of the air return pipe faces the lower side of the connecting frame, the air outlet of the air return pipe faces the upper side of the connecting frame, and the water inlet of the drainage pipe faces the upper side of the connecting frame.

[0015] The beneficial effects of this utility model are:

[0016] 1. By combining the return air duct and drain pipe within a frame and staggering their arrangement, the heat from the return air is transferred to the condensate, achieving heat exchange. This helps regulate the return air temperature, reduces the load on the refrigeration system of the air-cooled refrigerator, and lowers its energy consumption. The first electric valve controls the opening and closing of the return air channel, allowing the return air to enter the hollow box. Impurities are intercepted by the filter plate, ensuring the safety and quality of food inside the air-cooled refrigerator. At the same time, the drain water is introduced into the hollow box through the three-way valve. Guided by the inclined plate, the condensate cleans the impurities adhering to the filter plate, maintaining unobstructed return airflow. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a frontal overall structural diagram of a combined air return and drainage structure for an air-cooled refrigerator proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the connecting frame proposed in this utility model;

[0020] Figure 3 for Figure 2 A magnified structural diagram of region A.

[0021] In the diagram: 100, main unit; 101, connecting frame; 200, guide unit; 201, return air duct; 202, drain pipe; 203, filter assembly; 203a, hollow box; 203b, filter plate; 203c, duct; 203d, first electric valve; 204, flushing assembly; 204a, three-way valve; 204b, inclined plate; 205, collection cover; 206, vertical pipe; 207, mesh plate; 208, second electric valve; 209, mounting plate. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] Reference Figure 1-3 This utility model provides a combined air return and drainage structure for an air-cooled refrigerator, comprising:

[0027] The main unit 100 includes a connecting frame 101, which is a square hollow structure. The connecting frame 101 facilitates the merging of the return air duct 201 and the drain pipe 202 inside it, which is beneficial to the combination of return air and drainage.

[0028] The guide unit 200 includes a return air duct 201 and a drain pipe 202. The return air duct 201 is fixedly connected to the connecting frame 101 and is arranged in a horizontally curved manner. The drain pipe 202 is fixedly connected to the connecting frame 101 and is arranged in a longitudinally curved manner. The drain pipe 202 and the return air duct 201 are arranged in an interlaced manner. A filter assembly 203 is provided on the connecting frame 101, and a flushing assembly 204 is provided on the drain pipe 202. By interlacing the return air duct 201 and the drain pipe 202, the heat of the return air can be transferred to the lower-temperature condensate, which has a heat exchange effect on the return air in the air-cooled refrigerator. This helps to regulate the return air temperature, reduce the load on the refrigeration system of the air-cooled refrigerator, thereby reducing the energy consumption demand of the air-cooled refrigerator and improving the energy efficiency of the air-cooled refrigerator.

[0029] The filter assembly 203 includes a hollow box 203a, which is fixedly connected to the connecting frame 101. A filter plate 203b is fixedly connected to the inner wall of the hollow box 203a. Two ducts 203c are fixedly connected to the side of the return air duct 201 near the hollow box 203a. The other ends of the two ducts 203c movably pass through the connecting frame 101 and the hollow box 203a. A first electric valve 203d is provided on the return air duct 201. The opening and closing of the return air channel is controlled by the first electric valve 203d, so that the return air is input into the hollow box 203a and the filter plate 203b intercepts the return air impurities, so as to avoid affecting the food in the air-cooled refrigerator and improve the safety and quality of the food in the air-cooled refrigerator.

[0030] Furthermore, the flushing assembly 204 includes a three-way valve 204a, which is connected to the drain pipe 202. The bottom end of the three-way valve 204a moves through the connecting frame 101 and the hollow box 203a. Two inclined plates 204b are fixedly connected to the inner wall of the hollow box 203a. The drain water is introduced into the hollow box 203a through the three-way valve 204a, so that the condensate water is guided by the inclined plates 204b to clean the impurities adhering to the filter plate 203b and prevent it from affecting the smooth return air in the air-cooled refrigerator.

[0031] Furthermore, on both sides of the hollow box 203a away from the connecting frame 101, there are threaded collection covers 205. Each collection cover 205 is fixedly connected to a vertical pipe 206. Each vertical pipe 206 is fixedly connected to a mesh plate 207. Each vertical pipe 206 is equipped with a second electric valve 208. The aperture of the two mesh plates 207 is smaller than that of the filter plate 203b. The collection covers 205 facilitate the falling of cleaned impurities into the mesh plates 207 for centralized processing. At the same time, the smaller aperture of the mesh plates 207 provides a secondary interception effect on impurities. The second electric valve 208 controls the opening and closing of the drainage to avoid mutual interference between drainage and return air.

[0032] Furthermore, a mounting plate 209 is fixedly connected to the frame 101. There are two mounting plates 209, which are symmetrically arranged. The mounting plates 209 facilitate the installation and disassembly of the entire equipment, making it convenient and quick.

[0033] Furthermore, the air inlet of the return air duct 201 faces the lower side of the connecting frame 101, the air outlet of the return air duct 201 faces the upper side of the connecting frame 101, and the water inlet of the drain pipe 202 faces the upper side of the connecting frame 101. The orientation of the air inlet and outlet of the return air duct 201 facilitates the rapid circulation of return air.

[0034] During use, the return air duct 201 and the drain pipe 202 are easily integrated within the frame 101, and are staggered to allow the heat from the return air to be transferred to the cooler condensate. This provides a heat exchange effect on the return air in the air-cooled refrigerator, helps regulate the return air temperature, reduces the load on the refrigeration system, thereby lowering the energy consumption and improving the energy efficiency of the refrigerator. The first electric valve 203d controls the opening and closing of the return air channel, allowing the return air to enter the hollow box 203a. The filter plate 203b intercepts impurities in the return air, preventing them from affecting the food in the refrigerator and improving the safety and quality of the food. At the same time, the three-way valve 204a directs the drain water into the hollow box 203a, and the condensate is guided by the inclined plate 204b to clean the impurities adhering to the filter plate 203b, preventing any obstruction to the smooth flow of return air in the refrigerator.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A combined air return and drainage structure for an air-cooled refrigerator, characterized in that: include: The main unit (100) includes a connecting frame (101), which is a square hollow structure; The guide unit (200) includes a return air duct (201) and a drain pipe (202). The return air duct (201) is fixedly connected to the connecting frame (101) and is arranged in a horizontally curved manner. The drain pipe (202) is fixedly connected to the connecting frame (101) and is arranged in a longitudinally curved manner. The drain pipe (202) and the return air duct (201) are arranged in an interlaced manner. A filter assembly (203) is provided on the connecting frame (101), and a flushing assembly (204) is provided on the drain pipe (202).

2. The combined air return and drainage structure of an air-cooled refrigerator according to claim 1, characterized in that: The filter assembly (203) includes a hollow box (203a), which is fixedly connected to the connecting frame (101). A filter plate (203b) is fixedly connected to the inner wall of the hollow box (203a). The return air duct (201) near the hollow box (203a) is fixedly connected to two conduits (203c). The other ends of the two conduits (203c) movably pass through the connecting frame (101) and the hollow box (203a). A first electric valve (203d) is provided on the return air duct (201).

3. The combined air return and drainage structure of an air-cooled refrigerator according to claim 2, characterized in that: The flushing assembly (204) includes a three-way valve (204a), which is connected to the drain pipe (202). The bottom end of the three-way valve (204a) moves through the connecting frame (101) and the hollow box (203a). The inner wall of the hollow box (203a) is fixedly connected to two inclined plates (204b).

4. The combined air return and drainage structure of an air-cooled refrigerator according to claim 3, characterized in that: The hollow box (203a) has collection covers (205) threaded on both sides of the side away from the connecting frame (101). Each collection cover (205) is fixedly connected to a vertical pipe (206). Each vertical pipe (206) is fixedly connected to a mesh plate (207). Each vertical pipe (206) is equipped with a second electric valve (208). The aperture of each mesh plate (207) is smaller than that of the filter plate (203b).

5. The combined air return and drainage structure of an air-cooled refrigerator according to claim 4, characterized in that: An mounting plate (209) is fixedly connected to the connecting frame (101). There are two mounting plates (209), which are arranged symmetrically.

6. The combined air return and drainage structure of an air-cooled refrigerator according to claim 5, characterized in that: The air inlet of the return air duct (201) faces the lower side of the connecting frame (101), the air outlet of the return air duct (201) faces the upper side of the connecting frame (101), and the water inlet of the drain pipe (202) faces the upper side of the connecting frame (101).

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