Air volume controllable type air duct assembly, refrigeration air circulation system and refrigerator

Abstract

The utility model relates to the technical field of refrigerators, and provides an air volume controllable type air duct assembly which comprises an air duct cover plate and a base plate covering the back face of the air duct cover plate. A fan cavity is formed in the air duct cover plate, and a centrifugal fan is mounted in the fan cavity; the air duct cover plate is further provided with a main air duct communicating with the fan cavity. The main air duct extends to the side face of the air duct cover plate to form a main air supply outlet. A main air door is arranged at the joint of the fan cavity and the main air duct; the main air door is configured to control the air volume in the main air duct by controlling the opening degree of the main air door; opening or closing of the main air channel is controlled by controlling opening or closing of the main air door. Therefore, the air door is arranged at the joint of the fan cavity and the air duct; opening or closing of the main air channel is controlled by controlling opening or closing of the main air door. And the response time of temperature control is reduced. The air volume in the air duct is controlled by controlling the opening degree of the air door; and therefore, the temperature in the compartment can be accurately controlled. The utility model further provides a refrigeration air circulation system and a refrigerator.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigerators, and in particular relates to an air duct component with controllable air volume, a refrigeration air circulation system and a refrigerator. Background Art

[0002] In existing refrigerators, a temperature sensor is usually installed in the storage compartment to detect the temperature in the compartment in real time. When the temperature in the compartment reaches a preset temperature, the evaporator fan or compressor is turned off to stop refrigeration; when the temperature in the compartment is higher than the preset temperature, the evaporator fan or compressor is started to start refrigeration.

[0003] The temperature control method is rough, the temperature control accuracy is not high, and the temperature fluctuation in the storage room is large. If the storage room is divided into independent compartments, it is impossible to control the temperature of each independent compartment separately.

[0004] In summary, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] In view of the above-mentioned defects, the utility model mainly provides an air duct component with controllable air volume to solve the technical problem of poor temperature control accuracy.

[0006] In order to solve the above problems, the utility model provides an air volume controllable air duct assembly, comprising an air duct cover plate and a base plate covering the back of the air duct cover plate;

[0007] The air duct cover plate is provided with a fan cavity, and a centrifugal fan is installed in the fan cavity;

[0008] The air duct cover plate is also provided with a main air duct connected to the fan cavity; the main air duct extends to the side of the air duct cover plate to form a main air supply port;

[0009] A main air door is provided at the intersection of the fan chamber and the main air duct; the main air door is configured to: control the air volume in the main air duct by controlling the opening of the main air door; and control the conduction or shutoff of the main air duct by controlling the opening or closing of the main air door.

[0010] According to the air volume controllable air duct assembly of the utility model, the main air duct extends to two side surfaces of the air duct cover plate respectively, and a group of main air supply ports are formed on each side surface.

[0011] According to the air volume controllable air duct assembly of the utility model, the air duct cover plate is provided with a first branch air duct and a second branch air duct connected to the fan chamber; a first branch air door is provided at the intersection of the fan chamber and the first branch air duct, and a second branch air door is provided at the intersection with the second branch air duct;

[0012] The first branch damper is configured to control the air volume in the first branch air duct by controlling the opening of the first branch damper; the second branch damper is configured to control the air volume in the second branch air duct by controlling the opening of the second branch damper;

[0013] The air duct cover plate is provided with a first branch air supply port connected to the first branch air duct and a second branch air supply port connected to the second branch air duct.

[0014] According to the air volume controllable air duct assembly of the utility model, the first branch air supply port is arranged in the lower middle part of the air duct cover plate, and the second branch air supply port is opened near the bottom of the air duct cover plate.

[0015] According to the air volume controllable air duct assembly of the utility model, an ion generator is also provided in the main air duct.

[0016] According to the air volume controllable air duct assembly of the utility model, the air duct cover plate is provided with a threading hole at a position close to the fan cavity, and a wire groove is opened on the side wall of the fan cavity.

[0017] According to the air volume controllable air duct assembly of the utility model, a water outlet groove is opened on the side wall of the fan cavity.

[0018] A refrigerated air circulation system comprises the above-mentioned air duct assembly, wherein the air duct cover is recessed to form a clearance space, and an evaporator is installed in the clearance space; and the air duct cover is also provided with a plurality of return air ports located below the clearance space.

[0019] According to the refrigerated air circulation system of the utility model, a water guide inclined plate is provided below the make way space, and a water guide bottom plate is provided below the water guide inclined plate; there are two water guide inclined plates, which are arranged in a V shape, and the connection position of the two water guide inclined plates forms a water collection nozzle.

[0020] A refrigerator comprises the refrigerating air circulation system.

[0021] In summary, the utility model reduces the response time of temperature control by setting a damper at the intersection of the fan chamber and the air duct; controlling the main air duct to be turned on or off by controlling the opening or closing of the main damper. By controlling the opening of the damper, the air volume in the air duct is controlled; and the temperature in the compartment can be accurately controlled. The utility model also provides a refrigerated air circulation system that can form an independent air circulation. The utility model also provides a refrigerator that realizes independent air circulation for the refrigerated compartment and accurately controls the temperature. And it does not cross the wind with other compartments, avoiding the odor of the items stored in other compartments and contaminating the items in the refrigerated compartment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 yes Figure 1 A is a schematic structural diagram of an embodiment;

[0024] Figure 3 yes Figure 1 A is a schematic structural diagram of an embodiment;

[0025] Figure 4 It is a schematic diagram of the internal structure of the utility model;

[0026] Figure 5 yes Figure 4 Schematic diagram of the structure of the middle B area;

[0027] In the figure: 1- air duct cover, 11- main air supply outlet, 12- return air outlet, 13- water guide inclined plate, 131- water collection nozzle; 14- water guide bottom plate, 15- first branch air supply outlet, 16- second branch air supply outlet, 17- main air duct, 171- main air gate; 18- first branch air duct, 181- first branch air gate; 19- second branch air duct, 191- second branch air gate; 2- centrifugal fan, 21- water outlet; 3- base plate, 4- clearance space, 5- junction box, 51- threading hole, 52- wire trough; 6- decorative plate, 7- ion generator. DETAILED DESCRIPTION

[0028] See also Figure 1 The utility model provides an air volume controllable air duct assembly, comprising an air duct cover plate 1 and a base plate 3 covering the back of the air duct cover plate 1;

[0029] See also Figure 4 The air duct cover plate 1 is provided with a fan cavity, and a centrifugal fan 2 is installed in the fan cavity;

[0030] The air duct cover plate 1 is also provided with a main air duct 17 connected to the fan cavity; the main air duct 17 extends to the side of the air duct cover plate 1 to form a main air supply port 11;

[0031] More preferably, the main air duct 17 extends to two side surfaces of the air duct cover plate 1 respectively, and forms a group of main air supply ports 11 on each side surface; air is supplied through the two groups of main air supply ports 11, thereby improving the cooling efficiency.

[0032] A main air door 171 is provided at the intersection of the fan chamber and the main air duct 17. The main air door 171 is configured to control the air volume in the main air duct 17 by controlling the opening of the main air door 171, thereby accurately controlling the temperature in the room. The main air duct 17 is turned on or off by controlling the opening or closing of the main air door 171.

[0033] As an embodiment, an ion generator 7 is further provided in the main air duct 17 to sterilize the airflow entering the storage room.

[0034] As an embodiment, the air duct cover plate 1 is provided with a first branch air duct 18 and a second branch air duct 19 connected to the fan cavity; a first branch air door 181 is provided at the intersection of the fan cavity and the first branch air duct 18, and a second branch air door 191 is provided at the intersection of the fan cavity and the second branch air duct 19;

[0035] The first branch damper 181 is configured to control the air volume in the first branch air duct 18 by controlling the opening of the first branch damper 181; the second branch damper 191 is configured to control the air volume in the second branch air duct 19 by controlling the opening of the second branch damper 191;

[0036] The air duct cover plate 1 is provided with a first branch air supply port 15 connected to the first branch air duct 18 and a second branch air supply port 16 connected to the second branch air duct 19;

[0037] The first branch air outlet 15 and the second branch air outlet 16 can supply air to the independent sub-chambers respectively, so as to realize different temperature control of each sub-chamber. For example, the first branch air outlet 15 controls the temperature of the sub-chamber connected to it at 0°C; the second branch air outlet 16 controls the temperature of the sub-chamber connected to it at 5°C; and the two sub-chambers store different items respectively.

[0038] As an implementation mode, the first branch air supply outlet 15 is arranged in the lower middle part of the air duct cover 1, and the second branch air supply outlet 16 is opened near the bottom of the air duct cover 1; thereby, two independent upper and lower chambers can be set up to store different items respectively.

[0039] The base plate 3 covers the back side of the air duct cover plate 1, so that the main air duct 17, the first branch air duct 18 and the second branch air duct 19 form a sealed channel to prevent cold leakage.

[0040] See also Figure 2 The utility model also provides a refrigerated air circulation system, which has the above-mentioned air duct assembly; the air duct cover plate 1 is recessed to form a clearance space 4, and an evaporator is installed in the clearance space 4; the air duct cover plate 1 is also provided with a plurality of return air ports 12 located below the clearance space 4;

[0041] The refrigeration air circulation system of the utility model can be arranged near the back of the inner tank, and the centrifugal fan 2 rotates to send the cold energy generated by the evaporator to the main air duct 17, the first branch air duct 18 or the second branch air duct 19, thereby controlling the temperature of each room or sub-chamber in the inner tank. The airflow flows back from the return air port 12 to form a complete air cycle.

[0042] Furthermore, foam is provided in the clearance space 4 to absorb condensed water.

[0043] As an embodiment, a water guide inclined plate 13 is provided below the clearance space 4, and a water guide bottom plate 14 is provided below the water guide inclined plate 13, which is used to collect and discharge the generated condensed water.

[0044] Furthermore, the water guide inclined plates 13 are two pieces and are arranged in a V shape, and the connection position of the two water guide inclined plates 13 forms a water collection nozzle 131 to collect and drip the condensed water.

[0045] See also Figure 3 The front of the air duct cover plate 1 is provided with a decorative plate 6 to cover the air duct cover plate 1, so that the front looks neat and tidy and improves the aesthetics.

[0046] Preferably, a junction box 5 is provided at the lower side of the air duct cover plate 1 to facilitate the centralized installation of circuits and circuit components. Figure 5 The air duct cover plate 1 is provided with a threading hole 51 near the fan cavity, and a wire groove 52 is opened on the side wall of the fan cavity, which is convenient for laying the line of the centrifugal fan 2.

[0047] Furthermore, a water outlet groove 21 is provided on the side wall of the fan cavity to facilitate the outflow of condensed water in the fan cavity.

[0048] The utility model also provides a refrigerator with the above-mentioned refrigeration air circulation system, which realizes independent air circulation for the refrigeration compartment, accurately controls the temperature, and does not cross the air with other compartments, thereby preventing the odor of the items stored in other compartments from contaminating the items in the refrigeration compartment.

[0049] In summary, the utility model provides an air duct assembly with controllable air volume, which provides an air door at the intersection of the fan chamber and the air duct; controls the main air duct to be turned on or off by controlling the opening or closing of the main air door; and reduces the response time of temperature control. By controlling the opening of the air door, the air volume in the air duct is controlled; and the temperature in the compartment can be accurately controlled. The utility model also provides a refrigerated air circulation system that can form an independent air circulation. The utility model also provides a refrigerator that realizes independent air circulation for the refrigerated compartment and accurately controls the temperature. And it does not cross the air with other compartments, avoiding the odor of the items stored in other compartments and contaminating the items in the refrigerated compartment.

[0050] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. An air duct assembly with controllable air volume, characterized in that: It includes an air duct cover plate and a base plate covering the back of the air duct cover plate; The air duct cover plate is provided with a fan cavity, and a centrifugal fan is installed in the fan cavity; The air duct cover plate is also provided with a main air duct connected to the fan cavity; the main air duct extends to the side of the air duct cover plate to form a main air supply port; A main air door is provided at the intersection of the fan chamber and the main air duct; the main air door is configured to: control the air volume in the main air duct by controlling the opening of the main air door; and control the conduction or shutoff of the main air duct by controlling the opening or closing of the main air door.

2. The air volume controllable air duct assembly according to claim 1, characterized in that: The main air duct extends to two side surfaces of the air duct cover plate respectively, and a group of main air supply ports is formed on each side surface.

3. The air volume controllable air duct assembly according to claim 1, characterized in that: The air duct cover plate is provided with a first branch air duct and a second branch air duct connected to the fan cavity; a first branch air door is provided at the intersection of the fan cavity and the first branch air duct, and a second branch air door is provided at the intersection of the fan cavity and the second branch air duct; The first branch damper is configured to control the air volume in the first branch air duct by controlling the opening of the first branch damper; the second branch damper is configured to control the air volume in the second branch air duct by controlling the opening of the second branch damper; The air duct cover plate is provided with a first branch air supply port connected to the first branch air duct and a second branch air supply port connected to the second branch air duct.

4. The air volume controllable air duct assembly according to claim 3, characterized in that: The first branch air supply port is arranged at a lower middle position of the air duct cover plate, and the second branch air supply port is opened near the bottom position of the air duct cover plate.

5. The air volume controllable air duct assembly according to claim 1, characterized in that: An ion generator is also arranged in the main air duct.

6. The air volume controllable air duct assembly according to claim 1, characterized in that: The air duct cover plate is provided with a threading hole at a position close to the fan cavity, and a wire groove is opened on the side wall of the fan cavity.

7. The air volume controllable air duct assembly according to claim 1, characterized in that: A water outlet groove is provided on the side wall of the fan chamber.

8. A refrigerated air circulation system, comprising an air duct assembly as claimed in any one of claims 1 to 7, characterized in that: The air duct cover plate is recessed to form a clearance space, in which an evaporator is installed; the air duct cover plate is also provided with a plurality of return air ports located below the clearance space.

9. The refrigerated air circulation system according to claim 8, characterized in that: A water guide inclined plate is provided below the clearance space, and a water guide bottom plate is provided below the water guide inclined plate; there are two water guide inclined plates, which are arranged in a V shape, and the connection position of the two water guide inclined plates forms a water collection nozzle.

10. A refrigerator, characterized in that: A refrigerated air circulation system as claimed in claim 9.

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