Cold air flow guide device for refrigerated cabinet

Abstract

The utility model belongs to the technical field of refrigerated cabinets, and particularly relates to a cold air guide device for a refrigerated cabinet, which comprises the refrigerated cabinet, a top cover, a condenser, an inner container box, two cold air pipes, two air guide plates, two hollow shafts, two transmission components, two box bodies and two piston plates, the condenser and the inner container box are both fixedly installed in the refrigerated cabinet, and the condenser is located outside the inner container box and connected with the inner wall of the bottom of the refrigerated cabinet. The cold air blowing device is reasonable in design and easy and convenient to operate, the cold air blowing direction can be automatically adjusted according to different temperature changes of different positions in the inner container box, and therefore the temperatures of the different positions in the inner container box in the refrigerated cabinet can be kept in a similar state, the refrigeration effect of the refrigerated cabinet can be improved, and the practicability is high. The situation that the temperature difference in the inner container in the refrigerated cabinet is large, and the normal refrigerating and fresh keeping functions are affected is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerators, and in particular to a cold air guide device for a refrigerator. Background Art

[0002] The main function of a refrigerator is to keep the food fresh, so the fresh-keeping effect is an important basis for selection. According to scientific analysis, in order to keep the food fresh, on the one hand, the refrigerator needs to have a constant temperature and strong "freezing power", and on the other hand, the air inside the refrigerator needs to be kept clean and fresh.

[0003] Refer to the existing authorized announcement number CN 207395281 U's "A cold air guide device for a refrigerator" comprises an inner tank box, a horizontal bottom plate is provided at the lower end of the inner cavity of the refrigerator box, the lower end of the inner tank box is fixed on the bottom plate, a mixed flow channel is formed between the inner wall of the refrigerator box and the outer wall of the inner tank box, an air flow channel is opened in the inner wall of the inner tank box, a plurality of air inlet holes are evenly provided on the outer wall of the inner tank box, and the air inlet holes are respectively communicated with the mixed flow channel and the air flow channel, a plurality of air outlet holes are evenly provided on the inner wall of the inner tank box, and the air outlet holes are respectively communicated with the inner cavity of the inner tank box and the air flow channel, a plurality of balls are filled in the air flow channel, and a guide plate is provided on the inner wall of the inner tank box located outside the air outlet hole, which can make the local temperature difference in the inner tank box smaller, so that the food refrigeration effect is better and the quality of the food after refrigeration is higher, which solves the problem that traditional refrigerators use condensers to directly generate cold air to refrigerate food, resulting in uneven temperature in the refrigerator, too high or too low local temperature of food, resulting in poor food refrigeration effect and affecting the taste of food.

[0004] The utility model provides another solution to solve the above problems.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0006] The utility model aims to solve the shortcomings mentioned in the above background technology and provides a cold air guide device for a refrigerator.

[0007] The above technical objectives of the utility model are achieved through the following technical solutions: A cold air guide device for a refrigerator, comprising a refrigerator, a top cover, a condenser, an inner tank, two cold air ducts, two air guide plates, two hollow shafts, two transmission assemblies, two boxes and two piston plates;

[0008] The top cover is arranged on the top of the refrigerator, the condenser and the inner tank box are both fixedly installed in the refrigerator, and the condenser is located outside the inner tank box and connected to the inner wall of the bottom of the refrigerator, the two cold air ducts are respectively fixedly installed on the upper positions of the inner walls of the front and rear sides of the inner tank box, the two air guide plates are respectively rotatably installed in the corresponding cold air ducts and are provided with a plurality of exhaust holes, the condenser is connected to the corresponding cold air ducts through two hollow shafts, and the hollow shafts are rotatably installed at one end of the cold air ducts and are fixedly connected to the corresponding air guide plates, the two box bodies are both fixedly installed on the inner wall of the inner tank box away from the condenser, the two piston plates are respectively sealingly slidably installed on the inner side walls of the corresponding box bodies and are respectively connected to the corresponding air guide plates through transmission components, and the space in the box body below the piston plates is filled with gas;

[0009] The bottom side of the cold air duct is provided with a plurality of lower holes, and the sides of the two cold air ducts close to each other are provided with a plurality of side holes, and the plurality of side holes and the plurality of lower holes are respectively matched with the corresponding exhaust holes.

[0010] Preferably, the transmission assembly includes a support rod, a bar block and a rotating pin, and a rotating pin coaxially arranged with the hollow shaft is fixedly installed on one end of the air guide plate away from the hollow shaft, and the rotating pin extends to the outside of the cold air duct at one end away from the air guide plate and is radially fixedly installed with a bar block, and the same support rod is hingedly installed on the bar block and the piston plate.

[0011] Preferably, the lower hole and the side hole located in the same plane are arranged at an angle of 45-80 degrees based on the axis of the cold air duct.

[0012] Preferably, a heat conducting plate is fixedly mounted on one side of the box body close to the inner tank, and two sides of the heat conducting plate are flush with the side wall of the inner tank and the side wall of the box body respectively.

[0013] Preferably, the heat conducting plate is arranged in an I-shape.

[0014] Preferably, a plurality of support blocks are fixedly mounted on the outer side of the inner tank, and the plurality of support blocks are fixedly connected to the inner wall of the refrigerator.

[0015] Preferably, the cold air duct is fixed on the front and rear inner walls of the liner box in an embedded manner, and the multiple lower holes on the cold air duct are arranged vertically downward and blow air downward along the front and rear inner walls of the liner box.

[0016] The beneficial effects of the utility model are as follows: through the cooperation of the cold air duct, air guide plate, hollow shaft and transmission assembly, the cold air can be controlled to be blown out from the lower hole or the side hole according to the temperature changes at different positions in the inner tank box, thereby reducing the temperature difference in the inner tank box, and through the heat conduction plate, the temperature change in the inner tank box can be more directly transmitted to the gas position in the box body, thereby realizing self-adjustment of the direction of the cold air blowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a cold air guide device for a refrigerator proposed by the utility model;

[0019] Figure 2 This is a schematic cross-sectional view of a cold air guide device for a refrigerator proposed by the utility model;

[0020] Figure 3 This is a structural schematic diagram of part A of a cold air guide device for a refrigerator proposed by the utility model;

[0021] Figure 4 This is a partial three-dimensional structural schematic diagram of a cold air guide device for a refrigerator proposed by the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the cold air duct, side hole and lower hole part proposed by the utility model;

[0023] Figure 6 for Figure 4 Schematic diagram of the local three-dimensional structure.

[0024] In the figure: 1. Refrigerator; 11. Top cover; 12. Condenser; 2. Inner tank; 21. Support block; 3. Cold air duct; 31. Lower hole; 32. Side hole; 4. Air guide plate; 401. Exhaust hole; 41. Hollow shaft; 42. Rotating pin; 43. Bar block; 44. Support rod; 5. Box body; 51. Piston plate; 52. Heat transfer plate. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Reference Figure 1-6A cold air guide device for a refrigerator comprises a refrigerator 1, a top cover 11, a condenser 12, an inner tank box 2, two cold air pipes 3, two air guide plates 4, two hollow shafts 41, two box bodies 5 and two piston plates 51. The top cover 11 is arranged on the top of the refrigerator 1, the condenser 12 and the inner tank box 2 are both fixedly installed in the refrigerator 1, and the condenser 12 is located outside the inner tank box 2 and connected to the inner wall of the bottom of the refrigerator 1. The two cold air pipes 3 are respectively fixedly installed on the upper positions of the inner walls of the front and rear sides of the inner tank box 2, and the two air guide plates 4 are respectively rotatably installed on the corresponding cold air pipes 3. A plurality of exhaust holes 401 are provided in the air duct 3. The condenser 12 is connected to the corresponding cold air duct 3 through two hollow shafts 41. The hollow shaft 41 is rotatably mounted on one end of the cold air duct 3 and fixedly connected to the corresponding air guide plate 4. The two box bodies 5 are fixedly mounted on the inner wall of the inner tank box 2 away from the condenser 12. The two piston plates 51 are respectively sealed and slidably mounted on the inner wall of the corresponding box body 5. A rotating pin 42 coaxially arranged with the hollow shaft 41 is fixedly mounted on one end of the air guide plate 4 away from the hollow shaft 41. The rotating pin 42 extends to the end away from the air guide plate 4. A strip block 43 is radially fixedly installed outside the cold air duct 3, and the same support rod 44 is hingedly installed on the strip block 43 and the piston plate 51, which can change the volume of the gas as the temperature transmitted to the box body 5 changes, so that the piston plate 51 can be controlled to move upward or downward, and then the air guide plate 4 can be controlled to deflect and cooperate with the lower hole 31 or the side hole 32 and the exhaust hole 401 to blow cold air to the position with higher temperature, and the space below the piston plate 51 in the box body 5 is filled with gas, and a plurality of lower holes 31 are opened on the bottom side of the cold air duct 3, and two cold A plurality of side holes 32 are provided on the side where the air duct 3 is close to each other. The plurality of side holes 32 and the plurality of lower holes 31 are respectively matched with the corresponding exhaust holes 401. The lower holes 31 and the side holes 32 located in the same plane are arranged at an angle of 45-80 degrees based on the axis of the cold air duct 3 as the center. A heat conducting plate 52 is fixedly installed on the side of the box body 5 close to the inner tank 2, and the heat conducting plate 52 is arranged in an I-shape. The two sides of the heat conducting plate 52 are flush with the side walls of the inner tank 2 and the side walls of the box body 5, respectively, so as to better conduct the temperature changes in the inner tank 2 to the gas position filled in the box body 5.

[0027] In this embodiment, a plurality of support blocks 21 are fixedly installed on the outer side of the inner tank box 2 , and the plurality of support blocks 21 are all fixedly connected to the inner wall of the refrigerator 1 , so as to provide stable support for the inner tank box 2 .

[0028] In this embodiment, the cold air duct 3 is fixed on the front and rear inner walls of the inner tank box 2 in an embedded manner, and the multiple lower holes 31 on the cold air duct 3 are arranged vertically downward and blow air downward along the front and rear inner walls of the inner tank box 2.

[0029] In this embodiment, the gas filled in the position below the piston plate 51 in the box body 5 can be butane gas, which has a boiling point of -0.5 degrees Celsius. When the temperature transmitted to the box body 5 through the heat conduction plate 52 changes, the air guide plate 4 can be adjusted in real time, thereby facilitating better automatic adjustment of the blowing direction according to the different temperatures at different positions in the inner tank 2.

[0030] The side holes 32 on the cold air duct 3 can be arranged in multiple rows, and the adjacent side holes 32 located in the same plane are arranged at an angle of 10-15 degrees.

[0031] Working principle: When in use, first turn on the power, start the condenser 12, and the cold air generated by the condenser 12 is transported to the two cold air pipes 3 through the hollow shaft 41 and blown into the inner tank box 2 through the side hole 32. Under the action of the heat conducting plate 52, the temperature of the heat conducting plate 52 can be kept relatively close to or consistent with the temperature in the inner tank box 2 in a tube heat radiation manner. The heat conducting plate 52 transfers the temperature to the gas in the box body 5. Since the volume of the gas will decrease when cooled and expand when heated in the box body 5, the piston plate 51 can be controlled to adjust the inclination angle of the air guide plate 4 under the cooperation of the support rod 44, the bar block 43 and the rotating pin 42, and the exhaust hole 401 can be adjusted to the position corresponding to the lower hole 31 or the side hole 32, thereby realizing automatic adjustment of the cold air direction.

[0032] The above is a detailed introduction to a cold air guide device for a refrigerator provided by the utility model. This article uses specific embodiments to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A cold air guide device for a refrigerator, characterized in that: It comprises a refrigerator (1), a top cover (11), a condenser (12), an inner tank (2), two cold air pipes (3), two air guide plates (4), two hollow shafts (41), two transmission components, two boxes (5) and two piston plates (51); The top cover (11) is arranged on the top of the refrigerator (1), the condenser (12) and the inner tank box (2) are both fixedly installed in the refrigerator (1), and the condenser (12) is located outside the inner tank box (2) and connected to the inner wall of the bottom of the refrigerator (1), the two cold air ducts (3) are respectively fixedly installed at the upper positions of the inner walls of the front and rear sides of the inner tank box (2), the two air guide plates (4) are respectively rotatably installed in the corresponding cold air ducts (3) and are provided with a plurality of exhaust holes (401), the condenser (12) is connected to the refrigerator (1) through two hollow shafts (41) is connected to the corresponding cold air pipe (3), and the hollow shaft (41) is rotatably mounted on one end of the cold air pipe (3) and fixedly connected to the corresponding air guide plate (4), the two box bodies (5) are fixedly mounted on the inner wall of the inner tank box (2) away from the condenser (12), the two piston plates (51) are respectively sealed and slidably mounted on the inner side walls of the corresponding box bodies (5) and are respectively connected to the corresponding air guide plates (4) through transmission components, and the space below the piston plates (51) in the box body (5) is filled with gas; The bottom side of the cold air duct (3) is provided with a plurality of lower holes (31), and the sides of the two cold air ducts (3) close to each other are provided with a plurality of side holes (32), and the plurality of side holes (32) and the plurality of lower holes (31) are respectively matched with corresponding exhaust holes (401).

2. A cold air guide device for a refrigerator according to claim 1, characterized in that: The transmission assembly comprises a support rod (44), a strip block (43) and a rotating pin (42); a rotating pin (42) coaxially arranged with the hollow shaft (41) is fixedly mounted on one end of the air guide plate (4) away from the hollow shaft (41); an end of the rotating pin (42) away from the air guide plate (4) extends to the outside of the cold air pipe (3) and is radially fixedly mounted with the strip block (43); and the strip block (43) and the piston plate (51) are hingedly mounted with the same support rod (44).

3. The cold air guide device for a refrigerator according to claim 1, characterized in that: The lower hole (31) and the side hole (32) located in the same plane are arranged at an angle of 45-80 degrees based on the axis of the cold air pipe (3).

4. The cold air guide device for a refrigerator according to claim 1, characterized in that: A heat conducting plate (52) is fixedly mounted on one side of the box body (5) close to the inner tank box (2), and two sides of the heat conducting plate (52) are respectively flush with the side wall of the inner tank box (2) and the side wall of the box body (5).

5. The cold air guide device for a refrigerator according to claim 4, characterized in that: The heat conducting plate (52) is arranged in an I-shape.

6. The cold air guide device for a refrigerator according to claim 1, characterized in that: A plurality of support blocks (21) are fixedly mounted on the outer side of the inner tank box (2), and the plurality of support blocks (21) are all fixedly connected to the inner wall of the refrigerator (1).

7. The cold air guide device for a refrigerator according to claim 1, characterized in that: The cold air duct (3) is fixed on the front and rear inner walls of the inner tank box (2) in an embedded manner, and the multiple lower holes (31) on the cold air duct (3) are all arranged vertically downward and blow air downward along the front and rear inner walls of the inner tank box (2).

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