An evaporator device
By designing a serpentine evaporation tube and a nested structure evaporator device in the air-cooled refrigerator, the problem of low heat exchange efficiency of the fin evaporator is solved, achieving more efficient cold air dissipation and improving the performance of the refrigerator.
Patent Information
- Application Number
- CN202310104956.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-01-29
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2043-01-29
AI Technical Summary
The heat exchange efficiency of the fin evaporator in the air-cooled refrigerator is low, resulting in insufficient air dissipation and affecting the overall performance of the refrigerator.
Design an evaporator assembly that includes a serpentine evaporator tube, baffles, and fins. By setting up two rows of evaporation tubes up and down, and using the nested structure of baffles and fins, the high-temperature air passes through the lower and upper rows of evaporation tubes in sequence, achieving a "C" type heat exchange method and increasing the heat transfer between the air and the evaporator wall. Exchange time.
The heat exchange efficiency of the evaporator is improved, the cooling effect of high-temperature air passing through the evaporator is more obvious, and the overall performance of the refrigerator is improved.
Smart Images
Figure CN116067046B_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of household appliance technology, and mainly to an evaporator device. Background Art
[0002] When the hot air in the air-cooled refrigerator flows through the built-in evaporator, the air temperature is lowered by direct heat exchange between the high air temperature and the low evaporator temperature. At the same time, cold air is blown into the refrigerator. The air-cooled refrigerator lowers the temperature of the refrigerator through this continuous circulation method.
[0003] Finned evaporators are mostly used in air-cooled refrigerators. Figure 1 As shown in the figure, most traditional fin evaporator devices have aluminum fins nested on the evaporator. The fins at the bottom of the fin evaporator are sparse and at the top are dense. Air enters the evaporator from the bottom, exchanges heat with the coil and fins, and exits from the top of the evaporator. As the aspect ratio of the evaporator increases, the heat exchange efficiency between the air and the evaporation tube and fins decreases, the amount of heat exchange provided by the evaporator to the air decreases, and the heat exchange efficiency is low. Summary of the invention
[0004] The present application provides an evaporator device for solving the problem of low heat exchange efficiency of the evaporator.
[0005] The evaporator device comprises an evaporating tube, a baffle and a fin; the evaporating tube is arranged in a serpentine shape, and the evaporating tube comprises an upper row of evaporating tubes and a lower row of evaporating tubes;
[0006] The baffle comprises a first outer baffle, a second outer baffle and a third outer baffle, the first outer baffle, the second outer baffle and the third outer baffle are all arranged perpendicular to the plane where the evaporating tube is located, the first outer baffle and the third outer baffle are both perpendicular to the second outer baffle and connected to two opposite sides of the second outer baffle, and the first outer baffle and the third outer baffle are arranged on the same side of the second outer baffle;
[0007] The first outer baffle is embedded on a side of the upper row of evaporation tubes away from the lower row of evaporation tubes, and the third outer baffle is embedded on a side of the lower row of evaporation tubes away from the upper row of evaporation tubes;
[0008] The baffle further comprises a first inner baffle, a second inner baffle and a third inner baffle, wherein the first inner baffle and the second inner baffle are arranged perpendicular to the third inner baffle, the first inner baffle and the second inner baffle are arranged on the same side of the third inner baffle, and the first inner baffle and the second inner baffle are at equal distances from two opposite sides of the third inner baffle;
[0009] The first inner baffle is embedded on one side of the upper row of evaporation tubes close to the lower row of evaporation tubes, and the second inner baffle is embedded on one side of the lower row of evaporation tubes close to the upper row of evaporation tubes;
[0010] The first outer baffle, the first inner baffle, the third outer baffle and the second inner baffle are parallel to each other, and the second outer baffle and the third inner baffle are parallel to each other;
[0011] Fins are nested on the evaporating tubes, and the fins are perpendicular to the plane where the evaporating tubes are located. Fins are arranged between the first outer baffle plate and the first inner baffle plate, and between the third outer baffle plate and the second inner baffle plate.
[0012] The high-temperature air is blown into the evaporator from the gap between the third outer baffle plate and the second inner baffle plate, and then the hot air passes through the lower row of evaporation tubes along the passage between the third outer baffle plate and the second inner baffle plate. When the air reaches the second outer baffle plate, the air turns toward the first outer baffle plate along the second outer baffle plate, and then passes through the upper row of evaporation tubes along the passage between the first outer baffle plate and the first inner baffle plate, and finally leaves the evaporator from the gap between the first outer baffle plate and the first inner baffle plate. In the above circulation path, the high-temperature air always exchanges heat with the evaporation tubes.
[0013] Two rows of evaporator tubes are set up, and baffles and fins are used to allow the high-temperature air entering the evaporator to pass through the lower row of evaporator tubes and the upper row of evaporator tubes in turn, so that the heat exchange mode between the air, the evaporator tubes and the fins becomes a "C" type, increasing the heat exchange time between the air and the evaporator wall, making the cooling effect of the high-temperature air passing through the evaporator more obvious, and improving the heat exchange efficiency of the evaporator.
[0014] Optionally, the distance between the first outer baffle plate and the first inner baffle plate is equal to the distance between the third outer baffle plate and the second inner baffle plate.
[0015] Optionally, the first outer baffle plate, the third outer baffle plate, the first inner baffle plate, the second inner baffle plate and the fins have the same length in a direction perpendicular to the plane where the evaporating tube is located.
[0016] Optionally, the fins are parallel to each other, and the distance between adjacent fins is 4 to 25 mm.
[0017] Optionally, a distance between adjacent fins disposed between the first outer baffle plate and the first inner baffle plate is smaller than a distance between adjacent fins disposed between the third outer baffle plate and the second inner baffle plate.
[0018] Optionally, the angle between the plane where the fins arranged between the first outer baffle plate and the first inner baffle plate are located and the plane where the first outer baffle plate is located is a first angle, and the angle between the plane where the fins arranged between the third outer baffle plate and the second inner baffle plate are located and the plane where the third outer baffle plate is located is a second angle, and both the first angle and the second angle are less than or equal to 5°.
[0019] Optionally, the thickness of the fin is 25 mm to 75 mm.
[0020] Optionally, the distance between the fins arranged along the direction from the first outer baffle plate to the first inner baffle plate and the second outer baffle plate gradually increases, and the distance between the fins arranged along the direction from the second inner baffle plate to the third outer baffle plate and the second outer baffle plate gradually decreases.
[0021] Optionally, the outer diameter of the evaporation tube is 6 to 8.5 mm.
[0022] Optionally, the fins, baffles and evaporation tubes are made of aluminum or copper.
[0023] The present application provides an evaporator device, the device comprising an evaporating tube, a baffle and a fin, the evaporating tube is arranged in a serpentine shape, and the evaporating tube comprises an upper row of evaporating tubes and a lower row of evaporating tubes. By using the baffle and the fins nested on the evaporating tubes, the high-temperature air entering the evaporator can pass through the lower row of evaporating tubes and the upper row of evaporating tubes in sequence. In the above evaporator, the distances between adjacent fins arranged on the upper row of evaporating tubes and the lower row of evaporating tubes are different, and the distance between adjacent fins arranged on the upper row of evaporating tubes is smaller than the distance between adjacent fins arranged on the lower row of evaporating tubes.
[0024] By changing the arrangement direction of the evaporator tubes and fins, the heat exchange mode between the air and the evaporator tubes and fins becomes a "C" type, which increases the heat exchange time between the air and the evaporator wall, makes the cooling effect of the high-temperature air passing through the evaporator more obvious, and improves the heat exchange efficiency of the evaporator. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0026] Figure 1 It is a conventional evaporator device;
[0027] Figure 2 is a schematic diagram of an evaporator device;
[0028] Figure 3 A schematic diagram of an airflow circulation path in an evaporator device.
[0029] Legend:
[0030] 1-evaporation tube; 11-upper row evaporation tube; 12-lower row evaporation tube; 2-baffle; 21-first outer baffle; 22-second outer baffle; 23-third outer baffle; 24-first inner baffle; 25-second inner baffle; 26-third inner baffle; 3-fin. DETAILED DESCRIPTION
[0031] The following embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following embodiments do not represent all implementations consistent with the present application. They are only examples of systems and methods consistent with some aspects of the present application as detailed in the claims.
[0032] like Figure 1 As shown in the figure, most traditional fin evaporator devices have aluminum fins nested on the evaporator. The fins at the bottom of the fin evaporator are sparse and at the top are dense. Air enters the evaporator from the bottom, exchanges heat with the coil and fins, and exits from the top of the evaporator. As the aspect ratio of the evaporator increases, the heat exchange efficiency between the air and the evaporation tube and fins decreases, the amount of heat exchange provided by the evaporator to the air decreases, and the heat exchange efficiency is low.
[0033] In order to solve the problem of low heat exchange efficiency of the evaporator, the present application provides an evaporator device, including an evaporator tube 1, a baffle 2 and a fin 3; the evaporator tube 1 is arranged in a serpentine shape, and the evaporator tube 1 includes an upper row of evaporator tubes 11 and a lower row of evaporator tubes 12.
[0034] like Figure 2 As shown, the evaporator tubes 1 arranged in a serpentine shape exchange heat with the high-temperature air entering the evaporator. The serpentine shape increases the surface area of the evaporator tubes 1 in the evaporator and improves the heat exchange efficiency. The evaporator tubes 1 are arranged in a serpentine shape into an upper row of evaporator tubes 11 and a lower row of evaporator tubes 12, so that the high-temperature air passes through the lower row of evaporator tubes 12 and the upper row of evaporator tubes 11 in sequence, further improving the heat exchange efficiency.
[0035] The baffle 2 includes a first outer baffle 21, a second outer baffle 22, and a third outer baffle 23. The first outer baffle 21, the second outer baffle 22, and the third outer baffle 23 are all arranged perpendicular to the plane where the evaporation tube 1 is located. The first outer baffle 21 and the third outer baffle 23 are both perpendicular to the second outer baffle 22 and connected to two opposite sides of the second outer baffle 22. The first outer baffle 21 and the third outer baffle 23 are arranged on the same side of the second outer baffle 22. The first outer baffle 21 is nested on the side of the upper row of evaporation tubes 11 away from the lower row of evaporation tubes 12, and the third outer baffle 23 is nested on the side of the lower row of evaporation tubes 12 away from the upper row of evaporation tubes 11.
[0036] The first outer baffle 21, the second outer baffle 22 and the third outer baffle 23 are interconnected and surround the three sides of the evaporator tube 1, and the first outer baffle 21 and the third outer baffle 23 are nested on the evaporator tube 1, so that the high-temperature air entering the evaporator is limited to the range surrounded by the first outer baffle 21, the second outer baffle 22 and the third outer baffle 23.
[0037] The baffle 2 further includes a first inner baffle 24, a second inner baffle 25, and a third inner baffle 26. The first inner baffle 24 and the second inner baffle 25 are arranged perpendicular to the third inner baffle 26. The first inner baffle 24 and the second inner baffle 25 are arranged on the same side of the third inner baffle 26. The first inner baffle 24 and the second inner baffle 25 are equidistant from two opposite sides of the third inner baffle 26. The first inner baffle 24 is nested on a side of the upper row of evaporation tubes 11 close to the lower row of evaporation tubes 12, and the second inner baffle 25 is nested on a side of the lower row of evaporation tubes 12 close to the upper row of evaporation tubes 11.
[0038] The first inner baffle 24, the second inner baffle 25 and the third inner baffle 26 cooperate with the first outer baffle 21, the second outer baffle 22 and the third outer baffle 23 to divide the space inside the evaporator into two parts, wherein the two parts respectively include the upper row of evaporation tubes 11 and the lower row of evaporation tubes 12. When high-temperature air enters the evaporator, it first enters the part including the lower row of evaporation tubes 12 to be cooled, and then enters the part including the upper row of evaporation tubes 11 to be further cooled, thereby improving the heat exchange efficiency.
[0039] The first outer baffle 21, the first inner baffle 24, the third outer baffle 23 and the second inner baffle 25 are parallel to each other, and the second outer baffle 22 and the third inner baffle 26 are parallel to each other. The evaporator tube 1 is embedded with fins 3, and the fins 3 are perpendicular to the plane where the evaporator tube 1 is located. The fins 3 are arranged between the first outer baffle 21 and the first inner baffle 24, and between the third outer baffle 23 and the second inner baffle 25.
[0040] Fins 3 are arranged between the baffles 2 to further confine the high-temperature air to flow in the space between adjacent fins 3, which is beneficial to controlling the flow direction of the high-temperature air and improving the heat exchange efficiency.
[0041] like Figure 3As shown, the high-temperature air is blown into the evaporator from the gap between the third outer baffle 23 and the second inner baffle 25, and then the hot air passes through the lower row of evaporation tubes 1 along the channel between the third outer baffle 23 and the second inner baffle 25. When the air reaches the second outer baffle 22, the air turns toward the first outer baffle 21 along the second outer baffle 22, and then passes through the upper row of evaporation tubes 1 along the channel between the first outer baffle 21 and the first inner baffle 24, and finally leaves the evaporator from the gap between the first outer baffle 21 and the first inner baffle 24. In the above circulation path, the high-temperature air always exchanges heat with the evaporation tube 1.
[0042] The evaporator is provided with two rows of evaporation tubes 1, upper and lower. By using baffles 2 and fins 3, the high-temperature air entering the evaporator can pass through the lower row of evaporation tubes 12 and the upper row of evaporation tubes 11 in sequence, so that the heat exchange mode between the air, the evaporation tubes 1 and the fins 3 becomes a "C" type, which increases the heat exchange time between the air and the evaporator wall, makes the cooling effect of the high-temperature air passing through the evaporator more obvious, and improves the heat exchange efficiency of the evaporator.
[0043] In some embodiments, the distance between the first outer baffle plate 21 and the first inner baffle plate 24 is equal to the distance between the third outer baffle plate 23 and the second inner baffle plate 25 .
[0044] By setting the distance between the first outer baffle 21 and the first inner baffle 24 to be equal to the distance between the third outer baffle 23 and the second inner baffle 25, it is possible to ensure that the speed of air passing between the first outer baffle 21 and the first inner baffle 24 is equal to the speed of air passing between the third outer baffle 23 and the second inner baffle 25. This allows high-temperature air to fully exchange heat when passing through the upper row of evaporation tubes 11 and the lower row of evaporation tubes 12, which is beneficial to improving the heat exchange efficiency of the evaporator.
[0045] In some embodiments, the first outer baffle 21 , the third outer baffle 23 , the first inner baffle 24 , the second inner baffle 25 and the fin 3 have the same length in a direction perpendicular to the plane where the evaporation tube 1 is located.
[0046] The first outer baffle 21, the third outer baffle 23, the first inner baffle 24, the second inner baffle 25 and the fins 3 are all nested on the evaporator tube 1. When they are at the same height, the high-temperature air will not miss the heat exchange with the evaporator tube 1 due to escaping from the top and bottom of the fins 3.
[0047] In some embodiments, the fins 3 are parallel to each other, and the distance between adjacent fins 3 is 4 to 25 mm.
[0048] In some embodiments, the distance between adjacent fins 3 disposed between the first outer baffle plate 21 and the first inner baffle plate 24 is smaller than the distance between adjacent fins 3 disposed between the third outer baffle plate 23 and the second inner baffle plate 25 .
[0049] For example Figure 2 As shown, the distance between adjacent fins 3 arranged between the first outer baffle plate 21 and the first inner baffle plate 24 is 8 mm, and the distance between adjacent fins 3 arranged between the third outer baffle plate 23 and the second inner baffle plate 25 is 16 mm.
[0050] In some embodiments, the angle between the plane where the fin 3 arranged between the first outer baffle 21 and the first inner baffle 24 is located and the plane where the first outer baffle 21 is located is a first angle, and the angle between the plane where the fin 3 arranged between the third outer baffle 23 and the second inner baffle 25 is located and the plane where the third outer baffle 23 is located is a second angle, and both the first angle and the second angle are less than or equal to 5°.
[0051] The fins 3 are arranged to be inclined along the direction of high-temperature air circulation. That is, the end of the fin 3 arranged between the first outer baffle 21 and the first inner baffle 24 close to the second inner baffle 25 is inclined toward the first outer baffle 21; the end of the fin 3 arranged between the third outer baffle 23 and the second inner baffle 25 close to the second outer baffle 22 is inclined toward the second inner baffle 25. The inclined fins 3 help the high-temperature air to flow better in the evaporator, so that the heat exchange mode between the air, the evaporation tube 1 and the fins 3 becomes a "C" type, thereby improving the heat exchange efficiency.
[0052] In some embodiments, the thickness of the fin 3 is 25 mm to 75 mm, and the outer diameter of the evaporation tube 1 is 6 to 8.5 mm.
[0053] In some embodiments, the distance between the fin 3 and the second outer baffle 22 arranged along the direction from the first outer baffle 21 to the first inner baffle 24 gradually increases, and the distance between the fin 3 and the second outer baffle 22 arranged along the direction from the second inner baffle 25 to the third outer baffle 23 gradually decreases.
[0054] like Figure 2 As described above, both ends of the fins 3 arranged in the arrangement form inclined surfaces, which help the high-temperature air to better change direction at the second outer baffle plate 22 .
[0055] In some embodiments, the fins 3 , the baffles 2 and the evaporation tube 1 are made of aluminum or copper.
[0056] The fins 3, baffles 2 and evaporating tubes 1 are made of materials with excellent heat exchange effects to improve the heat exchange efficiency of the evaporator.
[0057] The present application provides an evaporator device, the device comprising an evaporation tube 1, a baffle 2 and a fin 3, the evaporation tube 1 is arranged in a serpentine shape, and the evaporation tube 1 comprises an upper row of evaporation tubes 11 and a lower row of evaporation tubes 12. By using the baffle 2 and the fin 3 nested on the evaporation tube 1, the high-temperature air entering the evaporator can pass through the lower row of evaporation tubes 12 and the upper row of evaporation tubes 11 in sequence. In the above evaporator, the distances between adjacent fins 3 arranged on the upper row of evaporation tubes 11 and the lower row of evaporation tubes 12 are different, and the distance between adjacent fins 3 arranged on the upper row of evaporation tubes 11 is smaller than the distance between adjacent fins 3 arranged on the lower row of evaporation tubes 12.
[0058] By changing the arrangement direction of the evaporator tubes and fins 3, the heat exchange mode between the air and the evaporator tubes 1 and fins 3 becomes a "C" type, which increases the heat exchange time between the air and the evaporator wall, makes the cooling effect of the high-temperature air passing through the evaporator more obvious, and improves the heat exchange efficiency of the evaporator.
[0059] Similar parts between the embodiments provided in this application can be referenced to each other. The specific implementation methods provided above are only a few examples under the general concept of this application and do not constitute a limitation on the protection scope of this application. For those skilled in the art, any other implementation methods expanded based on the scheme of this application without creative work belong to the protection scope of this application.
Claims
1. An evaporator device, characterized in that: It comprises an evaporation tube (1), a baffle (2) and a fin (3); the evaporation tube (1) is arranged in a serpentine shape, and the evaporation tube (1) comprises an upper row of evaporation tubes (11) and a lower row of evaporation tubes (12); The baffle (2) comprises a first outer baffle (21), a second outer baffle (22) and a third outer baffle (23); the first outer baffle (21), the second outer baffle (22) and the third outer baffle (23) are all arranged perpendicular to the plane where the evaporating tube (1) is located; the first outer baffle (21) and the third outer baffle (23) are both perpendicular to the second outer baffle (22) and connected to two opposite sides of the second outer baffle (22); the first outer baffle (21) and the third outer baffle (23) are arranged on the same side of the second outer baffle (22); The first outer baffle plate (21) is embedded in the side of the upper row of evaporation tubes (11) away from the lower row of evaporation tubes (12), and the third outer baffle plate (23) is embedded in the side of the lower row of evaporation tubes (12) away from the upper row of evaporation tubes (11); The baffle plate (2) further comprises a first inner baffle plate (24), a second inner baffle plate (25) and a third inner baffle plate (26); the first inner baffle plate (24) and the second inner baffle plate (25) are arranged perpendicular to the third inner baffle plate (26); the first inner baffle plate (24) and the second inner baffle plate (25) are arranged on the same side of the third inner baffle plate (26); and the first inner baffle plate (24) and the second inner baffle plate (25) are at equal distances from two opposite sides of the third inner baffle plate (26); The first inner baffle (24) is nested on a side of the upper row of evaporation tubes (11) close to the lower row of evaporation tubes (12), and the second inner baffle (25) is nested on a side of the lower row of evaporation tubes (12) close to the upper row of evaporation tubes (11); The first outer baffle (21), the first inner baffle (24), the third outer baffle (23) and the second inner baffle (25) are parallel to each other, and the second outer baffle (22) and the third inner baffle (26) are parallel to each other; The evaporating tube (1) is embedded with a fin (3), the fin (3) is perpendicular to the plane where the evaporating tube (1) is located, and the fin (3) is arranged between the first outer baffle (21) and the first inner baffle (24), and between the third outer baffle (23) and the second inner baffle (25); The distance between the first outer baffle plate (21) and the first inner baffle plate (24) is equal to the distance between the third outer baffle plate (23) and the second inner baffle plate (25); The first outer baffle (21), the third outer baffle (23), the first inner baffle (24), the second inner baffle (25) and the fin (3) have the same length in a direction perpendicular to the plane where the evaporating tube (1) is located; The fins (3) are parallel to each other, and the distance between adjacent fins (3) is 4 to 25 mm; The distance between adjacent fins (3) arranged between the first outer baffle plate (21) and the first inner baffle plate (24) is smaller than the distance between adjacent fins (3) arranged between the third outer baffle plate (23) and the second inner baffle plate (25); The angle between the plane where the fin (3) arranged between the first outer baffle plate (21) and the first inner baffle plate (24) is located and the plane where the first outer baffle plate (21) is located is a first angle, the angle between the plane where the fin (3) arranged between the third outer baffle plate (23) and the second inner baffle plate (25) is located and the plane where the third outer baffle plate (23) is located is a second angle, and both the first angle and the second angle are less than or equal to 5°.
2. The evaporator device according to claim 1, characterized in that The thickness of the fin (3) is 25 mm to 75 mm.
3. The evaporator device according to claim 2, characterized in that The distance between the fin (3) and the second outer baffle (22) arranged along the direction from the first outer baffle (21) to the first inner baffle (24) gradually increases, and the distance between the fin (3) and the second outer baffle (22) arranged along the direction from the second inner baffle (25) to the third outer baffle (23) gradually decreases.
4. The evaporator device according to claim 3, characterized in that The outer diameter of the evaporation tube (1) is 6 to 8.5 mm.
5. The evaporator device according to claim 4, characterized in that The material of the fins (3), the baffle (2) and the evaporation tube (1) is one of aluminum and copper.
Citation Information
Patent Citations
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