CN219318766U

CN219318766U - Air supply device and refrigerator

Info

Publication number: CN219318766U
Application number: CN202223192221.2U
Authority: CN
Inventors: 王伟; 张雪颖; 韩晓蕾
Original assignee: Panasonic Refrigeration Devices Wuxi Co Ltd
Current assignee: Panasonic Refrigeration Devices Wuxi Co Ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-07-07
Anticipated expiration: 2032-11-30

Abstract

The utility model provides an air supply device and a refrigerator, wherein the air supply device (100) comprises: a housing having at least one air intake and a plurality of air outlets; a fan (20) capable of sucking gas into the housing through the suction port and discharging the gas through the air outlet; and a fan baffle (30) disposed within the housing, comprising: a movable part (31) comprising a flow hole (31A) and a shielding part (31B) formed on the peripheral wall of the movable part (31), wherein the flow hole (31A) is arranged corresponding to at least one air outlet of the plurality of air outlets, and the shielding part (31B) is arranged corresponding to the other air outlets of the plurality of air outlets; and a fixed part (34) which is provided so as to surround the movable part (31), wherein a driving mechanism is provided inside the fixed part (34), and the driving mechanism drives the movable part (31) to move along the rotation axis direction of the fan (20). According to the air supply device provided by the utility model, the air supply quantity, the air supply efficiency, the sealing performance and the operation stability of the air supply device can be improved while the opening and closing of each air outlet are regulated.

Description

Air supply device and refrigerator

Technical Field

The utility model relates to an air supply device and a refrigerator with the same.

Background

In the existing refrigerator, cold air is generated through a built-in evaporator and circulated to each storage compartment of the refrigerator through an air duct to realize refrigeration. However, if the air quantity of the cold air is not regulated and the cold air randomly flows in the air duct, particularly, if the air quantity is regulated without a baffle plate in the freezing chambers of many refrigerators, the freezing chambers are simultaneously cooled when the refrigerating chambers are cooled, the efficiency of the cooling system of the refrigerators is reduced due to the large load quantity and the number of revolutions of the compressor is increased, and the freezing chambers are passively cooled when the refrigerating chambers are cooled, and the temperatures of the evaporators are relatively high when the refrigerating chambers are cooled due to the high temperatures of the refrigerating chambers, so that the temperatures of the freezing chambers are increased. In addition, when defrosting is performed, heat may be introduced into the freezing chamber, and the temperature in the freezing chamber may be increased, leading to an increase in temperature fluctuation.

In addition, in the prior art, a fan and fan-baffle integrated air supply device 500 is disclosed, as shown in fig. 1, a baffle 520 moving back and forth is designed at the air outlet of the fan 510, a driving part 530 is arranged at one side of the baffle 520, and the air outlet area can be adjusted by the back and forth movement of the air duct baffle 520. However, in such a configuration, the shielding by the driving unit 530 does not allow the fan 510 to blow air over the entire circumference, and the amount of air in the duct is not uniform, resulting in a large air resistance. In addition, since the driving part 530 is provided on the side of the damper, the damper 520 is easily stuck due to uneven stress, which causes poor opening and closing of the damper 520, and the driving part 530 is exposed to the air passage, which is easily frosted and frozen. In addition, there is a gap between the duct shutter 520 and the duct 540, so the sealability is relatively poor.

Disclosure of Invention

The present utility model has been made in view of the above-described problems, and an object of the present utility model is to provide an air blowing device in which a fan and a fan shutter are integrated, and in which the opening and closing of each air outlet can be adjusted, and in which the air blowing amount and the air blowing efficiency of the air blowing device in each air blowing duct can be improved, and in which the sealing performance and the operation stability of the air blowing device can be improved, and a refrigerator having the air blowing device.

An aspect of the present utility model provides an air blowing device including: a housing having at least one air intake and a plurality of air outlets; a fan capable of sucking gas into the housing through the suction port and discharging the gas through the air outlet; and a fan baffle disposed within the housing, wherein the fan baffle comprises: a movable part including a flow hole formed in a peripheral wall of the movable part, the flow hole being provided in correspondence with at least one of the plurality of air outlets, and a shielding part provided in correspondence with the other air outlets of the plurality of air outlets; and a fixed part which is arranged to surround the movable part, and a driving mechanism is arranged on the inner side of the fixed part and drives the movable part to move along the rotating shaft direction of the fan.

Therefore, the air supply device disclosed by the utility model can realize the opening and closing adjustment of the corresponding air outlets by the flow holes and the shielding parts by moving the movable part along the rotating shaft direction of the fan, and the air supply of the fan to each air outlet is controlled. On the other hand, because the driving mechanism is arranged at the inner side of the fixed part, when the driving mechanism drives the movable part to move along the rotating shaft direction of the fan, the movable part can be prevented from being blocked due to uneven stress, and the driving device can be prevented from being exposed in the air path to be frosted and frozen, so that the running stability of the air supply device is improved.

In the air supply device of the present utility model, the fan may be a centrifugal fan, and the shielding portion may be provided on an outer periphery of the fan so as to surround an air outlet surface of the fan.

In the air blowing device according to the present utility model, the fan may be fixed to the fixing portion such that the air outlet surface thereof is exposed to the outside of the peripheral wall of the fixing portion. Through this structure, can realize the fan and supply air around, reduce the windage, improve air supply volume and air supply efficiency.

In the air blowing device according to the present utility model, an air guide member for guiding air flowing to the at least one air outlet may be provided in the casing.

In the blower according to the present utility model, the housing may be constituted by a first support and a second support disposed opposite to each other, the fixing portion may be fixed to the second support, and the movable portion may be driven by a driving mechanism provided inside the fixing portion to move between the first support and the second support. By the structure, the opening and closing adjustment of each air outlet can be realized, and the air supply of the fan to each air outlet is controlled.

In addition, the air supply device of the utility model optionally further comprises a sealing ring arranged between the movable part and the fixed part, the seal ring is fixed to the fixed portion, and the seal ring can be abutted with both ends of the peripheral wall of the movable portion. With this structure, when the inner side of the one end of the peripheral wall of the movable portion, which is close to the second support body, abuts against the seal ring, that is, in the closed state, it is possible to prevent the cold air from leaking from the inner side of the movable portion; when the inner side of one end, close to the first support body, of the peripheral wall of the movable part is abutted with the sealing ring, namely in an opening state, the inner side of the movable part can be sealed, cold air is prevented from entering, moist air is prevented from entering, and frosting and freezing are caused.

In the air blowing device according to the present utility model, the air guide member may be fixed to the first support body, and the position of the air guide member contacting the movable portion may have a convex portion and an extension portion formed along the outer periphery of the movable portion, and the movable portion may have a concave portion, and the convex portion of the air guide member and the concave portion of the movable portion may be provided in one-to-one correspondence. With this structure, when the movable portion moves to come into contact with the first support body, that is, the closed state, the sealability is improved by the engagement of the convex portion of the air guide member with the concave portion of the movable portion, and the engagement of the extension portion of the air guide member with the outer periphery of the movable portion increases the windage, thereby reducing the leakage of the gas from the inside of the movable portion.

In the air supply device of the present utility model, the movable portion may be provided with a first drain hole at a lower side of one end of the first support body, and a second drain hole is provided at a position of the first support body corresponding to the first drain hole. With this structure, dew condensation water or frost water can be discharged from the inner side of the movable portion and the inner side of the first support body through the drain hole, and freezing due to stagnation of dew condensation water or frost water can be avoided.

In addition, the air blowing device of the present utility model, optionally, the fan baffle is provided to be inclined at an angle α with respect to the vertical direction, wherein 0 ° < α+.ltoreq.5°. By the structure, dew or defrosting water is converged to the drain hole, and is discharged through the drain hole, and frosting and freezing are restrained.

In addition, another aspect of the present utility model provides a refrigerator having the air supply device as described above; a refrigerating chamber and a freezing chamber; an evaporator for cooling the gas; a first air supply passage communicating with and supplying cool air to a refrigerating chamber of the refrigerator; the refrigerator comprises a first air supply channel which is communicated with a refrigerating chamber of the refrigerator and supplies cold air to the refrigerating chamber of the refrigerator, a refrigerating chamber baffle plate which is positioned between the refrigerating chamber and the air supply channel, an air inlet of the air supply device is communicated with an evaporator and used for sucking the cold air from the evaporator, at least one air outlet of the air supply device is communicated with the first air supply channel, and other air outlets of the air supply device are communicated with the first air supply channel. With this structure, the opening and closing of the air outlet communicating the refrigerating chamber and the freezing chamber of the refrigerator and the opening and closing of the refrigerating chamber baffle plate can be easily adjusted, thereby easily controlling the cold air flowing to the refrigerating chamber and the freezing chamber.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the air supply device and the refrigerator, the fan and the fan baffle plate are integrated, the opening and the closing of each air outlet are regulated, the air supply quantity and the air supply efficiency of the air supply device in each air supply channel can be improved, and the sealing performance and the running stability of the air supply device are improved.

Drawings

The above and other objects, features and advantages of the present utility model will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

fig. 1 is an exploded perspective view schematically showing a fan and fan baffle integrated blower apparatus 500 in the related art.

Fig. 2 is an exploded perspective view schematically showing the air blowing device 100 according to the present utility model.

Fig. 3 is an exploded perspective view schematically showing the fan 20 and the fan baffle 30 of the air blowing device 100 according to the present utility model.

Fig. 4 is a perspective view schematically showing a state in which the fan baffle 30 of the air blowing device 100 according to the present utility model is closed.

Fig. 5 is a perspective view schematically showing a state in which the fan baffle 30 of the air blowing apparatus 100 according to the present utility model is opened

Fig. 6 is a diagram schematically showing the installation position of the heater 33 of the blower device 100 according to the present utility model.

Fig. 7 is a partial sectional view schematically showing the air blowing device 100 according to the present utility model in a closed state.

Fig. 8 is a partial sectional view schematically showing the air blowing device 100 according to the present utility model in an open state.

Fig. 9 is a partially enlarged view schematically showing the air blowing device 100 according to the present utility model in a closed state.

Fig. 10 is an enlarged view schematically showing a part of the movable portion 31 in the portion a (shown as a broken line frame) in fig. 9.

Fig. 11 is an enlarged view schematically showing a part of the air guide member 13 in the portion a (shown as a broken line frame) in fig. 9.

Fig. 12 is an enlarged view schematically showing a part of the air guide member 13 in the portion a (shown as a broken line frame) in fig. 9.

Fig. 13 is a schematic view for explaining an air path in which the blower device 100 of the present utility model is installed in the refrigerator 1.

Fig. 14 is a partial sectional view schematically showing that the air blowing device 100 according to the present utility model is installed in the refrigerator 1 in a closed state.

Fig. 15 is a partial sectional view schematically showing that the air blowing device 100 according to the present utility model is installed in the refrigerator 1 in an opened state.

It should be understood that the figures are not necessarily drawn to scale, but presents a somewhat simplified representation of various features that illustrate the basic principles of the utility model. The particular design features of the utility model, including, for example, particular dimensions, orientations, locations, and shapes, included herein will be determined in part by the application and use environment of the particular design.

In the drawings, reference numerals refer to the same or equivalent parts throughout the several views of the drawings.

Reference numerals

The refrigerator comprises a refrigerator body with a structure of 1 …, a refrigerator body with a structure of 100 …, a 10 … shell, a 11 … first support body, a 12 … second support body, a 13 … air guide component, 13A,13C … convex parts, 13B,13D … extending parts, 14 … air inlets, 15 … first air outlets, 16 … second air outlets, 20 … fans, 30 … fan baffles, 31 … movable parts, 31A … flow holes, 31B … shielding parts, front ends of 31C … movable parts, rear ends of 31D … movable parts, 31E … first drain holes, 31F, G … concave parts, 32 … sealing rings, 32A … full-circumference protruding parts, 33A,33B,33C … heaters, 34 … fixing parts, 35A,35B,35C … gear transmission devices, 200 … rack chambers, 201 first air supply channels, 202 … chambers, 300 freezing chambers, … freezing chambers, 300 …, a refrigerating chamber …, a second refrigerating chamber … evaporator and a refrigerating chamber.

Detailed Description

The blower device and the refrigerator according to the present utility model will be described in detail below with reference to the accompanying drawings. In the description of the drawings, the same or corresponding parts are denoted by the same reference numerals, and redundant description thereof is omitted.

In this specification, it should be understood that the terms "comprises," "comprising," "includes," "including," "having," and the like, are intended to specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

Fig. 2 is an exploded perspective view schematically showing the air blowing device 100 according to the present utility model. Fig. 3 is an exploded perspective view schematically showing the fan 20 and the fan baffle 30 of the air blowing device 100 according to the present utility model. Fig. 4 is a perspective view schematically showing the fan baffle 30 of the air blowing device 100 according to the present utility model in a closed state. Fig. 5 is a perspective view schematically showing the fan baffle 30 of the air blowing device 100 according to the present utility model in an opened state. Fig. 6 is a diagram schematically showing the installation position of the heater 33 of the blower device 100 according to the present utility model.

As shown in fig. 2 and 3, the air blowing device 100 of the present utility model includes a housing 10, a fan 20, and a fan baffle 30. The casing 10 includes a first support 11 and a second support 12 disposed opposite to each other, and has at least one suction port 14 provided in the first support 11 so as to penetrate the first support 11, and a plurality of air outlets (for example, a first air outlet 15 and a second air outlet 16 described later) formed between the first support 11 and the second support 12 and surrounded by the first support 11 and the second support 12 and the like.

As shown in fig. 2, for example, the first support 11 in the housing 10 is provided with an air guide member 13 that guides and discharges the air flowing through the first air outlet 15 upward. The fan 20 may be a centrifugal fan, and is disposed in the housing 10 so as to face the air intake port 14, and is capable of sucking air into the housing 10 through the air intake port 14 and discharging the air in a plurality of different directions or air supply passages through a plurality of air outlet ports, the air guide member 13, and the like. In fig. 2, only the air guide member 13 for guiding the air upward is provided in the casing 10 corresponding to the first air outlet 15, but a plurality of air guide members may be provided separately as necessary, and the air in the casing 10 may be guided to a plurality of different directions or air blowing passages such as upward or downward through the plurality of air guide members.

Further, as shown in fig. 3, the fan baffle 30 is provided to be inclined at an angle α with respect to the vertical direction, wherein 0 ° < α+.ltoreq.5°, the fan baffle 30 includes a movable portion 31 and a fixed portion 34, the movable portion 31 may be hollow cylindrical including a flow hole 31A and a shielding portion 31B, the flow hole 31A is formed on a peripheral wall of the movable portion 31, and a projection of the flow hole 31A on an axial plane along the hole may be rectangular, but not limited thereto, and may be circular or other polygonal. The shielding portion 31B is formed by the other portion of the peripheral wall of the movable portion 31 than the flow hole 31A. The fixing portion 34 may be provided inside with a receiving portion (not shown) receiving the movable portion 31, the fixing portion 34 may surround the movable portion 31, and a driving mechanism (not shown) driving the movable portion 31 to move in the rotation axis direction of the fan 20 is provided inside (near the center) the fixing portion 34. The driving mechanism is also located inside the movable portion 31 as seen in the axial direction of the fan.

As shown in fig. 3 to 5, the shielding portion 31B is provided on the outer periphery of the fan 20 so as to surround the air outlet surface of the fan 20, and the fan 20 is fixed to the fixing portion 34 so that the air outlet surface thereof is exposed to the outside of the peripheral wall of the fixing portion 34. The fixing portion 34 is fixed to the second support body 12, and the movable portion 31 is driven by a driving mechanism provided inside the fixing portion, so that the movable portion 31 reciprocates between the first support body 11 and the second support body 12, thereby adjusting the opening and closing of the plurality of air outlets.

As shown in fig. 2 to 5, the flow hole 31A is provided corresponding to at least one of the plurality of air outlets (for example, the first air outlet 15). In fig. 2, the first air outlet 15 is provided with only one air outlet, and accordingly, the through-hole 31A is provided with only one through-hole (as shown in fig. 3 and 4) provided corresponding to the air outlet, but a plurality of air outlets and corresponding through-holes through which the gas in the casing 10 is discharged may be additionally provided as needed. The shielding portion 31B is provided corresponding to the other air outlet (for example, the second air outlet 16) among the plurality of air outlets. In fig. 2, the first air outlet 15 is provided on the upper side of the casing 10, and the air can be discharged from above, and the fan 20 can supply air around the entire periphery, so that the second air outlet 16 is provided at a position other than the first air outlet around the entire periphery of the air outlet surface of the fan 20, and the shielding portion 31B is provided corresponding to the second air outlet 16.

Further, as shown in fig. 4 and 5, the air blowing device 100 may have two states: in the closed state (as shown in fig. 4), the driving mechanism drives the movable portion 31 to move toward the first support 11 in the axial direction of the fan 20, and the movable portion 31 approaches one end of the first support 11, that is, the front end 31C of the movable portion abuts against the first support 11; in the open state (as shown in fig. 5), the driving mechanism drives the movable portion 31 to move toward the second support 12 in the axial direction of the fan 20, and the tip 31C of the movable portion abuts against the fixed portion 34. The shielding portion 31B can completely seal the air outlets except the first air outlet 15 corresponding to the flow hole 31A in the closed state, in other words, the air blowing device 100 can completely close the air outlets except the first air outlet 15 corresponding to the flow hole 31A, that is, the second air outlet 16, and completely open the first air outlet 15 corresponding to the flow hole 31A in the closed state; in the open state, the first air outlet 15 and the second air outlet 16 can be completely opened.

With the above configuration, the fan 20 and the fan damper 30 can be integrated, and the movable portion 31 is driven by the driving mechanism to reciprocate between the first support 11 and the second support 12 in the axial direction of the fan 20, so that the opening and closing of the respective air outlets can be adjusted, and the air volume and the air supply efficiency of the air supply device 100 in the respective air supply passages can be improved since the entire air outlet surface of the fan 20 is exposed to the outside of the fixing portion 34.

Further, the driving mechanism may have, for example, a stepping motor (not shown) and rack and pinion gears 35a,35b,35c (as shown in fig. 6), which are provided inside the movable portion 31 and on the rear side of the fan 20, that is, at a position closer to the second support body 12 with respect to the fan 20. The driving mechanism drives the movable portion 31 to move in the axial direction of the fan 20 by connecting the stepping motor to the output gear and meshing the output gear with the rack portion inside the movable portion 31. The drive mechanism is not limited to the above-described structure and drive system, and may have other suitable motors and gears, for example, and a plurality of motors and gears may be provided. With this structure, since the motor and the transmission device are provided inside the movable portion 31, they are not exposed to the air passage, and are not easily frosted and frozen, and the transmission mechanism provided inside the movable portion 31 makes the movable portion 31 more uniformly stressed and is not easily jammed, thereby improving the operation stability of the air blowing device 100.

In addition, as shown in fig. 3 and 6, the fan baffle 30 further includes a heater 33, and the heater 33 may be a PET heater, but is not limited thereto, and may be other suitable heaters. The heater 33 may have three heaters (33 a,33b,33 c) as shown in fig. 6, which are uniformly arranged every 120 ° along the peripheral wall of the fixing portion 34. The heater 33 is not limited to the above-described structure and arrangement, but may be provided with one or more heaters, and may be arranged at different angular intervals, or at other reasonable positions of the fixing portion 34. With this structure, freezing of the fan baffle 30 can be suppressed, and the operation stability of the blower 100 can be improved.

Fig. 7 is a partial sectional view schematically showing the air blowing device 100 according to the present utility model in a closed state. Fig. 8 is a partial sectional view schematically showing the air blowing device 100 according to the present utility model in an open state. Fig. 9 is a partially enlarged view schematically showing the air blowing device 100 according to the present utility model in a closed state. Fig. 10 is an enlarged view schematically showing a part of the movable portion 31 in the portion a (shown as a broken line frame) in fig. 9. Fig. 11 is an enlarged view schematically showing a part of the air guide member 13 in the portion a (shown as a broken line frame) in fig. 9. Fig. 12 is an enlarged view schematically showing a part of the air guide member 13 in the portion a (shown as a broken line frame) in fig. 9.

As shown in fig. 3, the fan baffle 30 further includes a sealing ring 32, and the sealing ring 32 may be annular, disposed between the movable portion 31 and the fixed portion 34, and fixed to the fixed portion 34. As shown in fig. 7 and 8, the seal ring 32 may have a full-circumference protrusion 32A, and the full-circumference protrusion 32A may be formed by protruding outward in the full circumference from the circumferential wall of the seal ring 32. The movable portion 31 is driven to reciprocate between the first support 11 and the second support 12 by the driving mechanism, and the seal rings 32 can be brought into contact with both ends of the peripheral wall of the movable portion 31. When the one end 31D of the peripheral wall of the movable portion 31 near the second support body 12, i.e., the inside of the rear end 31D of the movable portion is in contact with the seal ring 32, i.e., in the closed state (as shown in fig. 7), it is possible to prevent the leakage of cold air from the inside of the movable portion 31; when the end 31C of the peripheral wall of the movable portion 31 near the first support 11, that is, the inner side of the distal end 31C of the movable portion is in contact with the seal ring 32, that is, in an open state (as shown in fig. 8), sealing of the inner side of the movable portion 31 can be achieved.

As shown in fig. 7, the first support 11 may have an annular gasket 11A, but is not limited thereto, and may have another structure capable of forming a seal by abutting against the peripheral wall of the movable portion 31. The annular gasket 11A of the first support 11 is provided so as to correspond to the peripheral wall of the movable portion 31, and when the blower device 100 is in the closed state, the tip 31C of the movable portion abuts against the annular gasket 11A, thereby preventing the cold air from leaking from the inside of the movable portion 31.

Further, as shown in fig. 8, when the blower device 100 is in the open state, the inside of the front end 31C of the movable portion abuts against the end 34A of the fixed portion 34 near the first support 11, that is, the front end 34A of the fixed portion, thereby achieving sealing of the inside of the movable portion 31.

As shown in fig. 9 to 12, the air guide member 13 has protruding portions 13a and 13c and extending portions 13b and 13d formed along the outer periphery of the movable portion 31 at positions where the air guide member 13 contacts the movable portion 31, and the movable portion 31 has recessed portions 31f and 31g, respectively, and the protruding portions 13a and 13c of the air guide member 13 are provided in one-to-one correspondence with the recessed portions 31f and 31g of the movable portion 31. When the blower device 100 is in the closed state, the movable portion 31 moves to come into contact with the first support 11, sealing performance is improved by engagement of the convex portions 13a,13c of the air guide member 13 with the concave portions 31f,31g of the movable portion 31, and wind resistance is increased by engagement of the extending portions 13b,13d of the air guide member 13 with the outer periphery of the movable portion 31, thereby reducing leakage of cool air from the inside of the movable portion 31.

Further, as shown in fig. 7 and 8, a first drain hole 31E is provided on the lower side of the front end 31C of the movable portion, and a second drain hole 11B is provided on the first support 11 at a position corresponding to the first drain hole 31E. The shapes of the first and

second drain holes

31E and 11B may be quadrangular, but are not limited thereto, and may be circular or other polygonal shapes. The first drain hole 31E and the second drain hole 11B may be formed in a tapered shape. With this structure, dew condensation water or frost water can be discharged from the inside of the movable portion 31 and the inside of the first support 11 through the first drain hole 31E and the second drain hole 11B, and frost freezing can be suppressed.

Fig. 13 is a schematic view for explaining an air path in which the blower device 100 of the present utility model is installed in the refrigerator 1. Fig. 14 is a partial sectional view schematically showing that the air blowing device 100 according to the present utility model is installed in the refrigerator 1 in a closed state. Fig. 15 is a partial sectional view schematically showing that the air blowing device 100 according to the present utility model is installed in the refrigerator 1 in an opened state.

With the above configuration, the fan 20 and the fan damper 30 can be integrated, the opening and closing of each air outlet can be adjusted, the air volume and the air supply efficiency of the air supply device 100 in each air supply passage can be improved, and the sealing performance and the operation stability of the air supply device can be improved.

As shown in fig. 13 to 15, the blower device 100 may be provided between the evaporator 401 and the blower passage in the cool air flow path, and the suction port 14 may be connected to the evaporator 401, and may suck cool air from the evaporator 401 into the casing 10 of the blower device 100, and the plurality of air outlets may be connected to the blower passages of the respective compartments of the refrigerator 1. Here, the cool air flow path is a flow path starting from the evaporator 401, in which cool air having exchanged heat with the evaporator 401 is sent to each compartment through the air supply duct, and then returned to the evaporator 401 through the return air duct from the return air inlet of each compartment. The blower 100 is not limited to being provided between the evaporator 401 and the blower passage, and may be provided in the blower passage leading to a certain compartment.

Further, as shown in fig. 13 to 15, the refrigerator 1 includes a refrigerating compartment 200, a freezing compartment 300, an evaporator 401, a first air supply path 201, a second air supply path 301, and a refrigerating compartment baffle 202. The refrigerating compartment baffle 202 is disposed between the refrigerating compartment 200 and the first air supply duct 201. According to the above configuration, the cool air cooled by the evaporator 401 is sucked into the housing 10 of the blower 100 by the fan 20 through the air intake 14 of the blower 100, flows into the air passage through the air outlet of the blower 100, and is sent to each compartment of the refrigerator 1. Here, the plurality of air outlets have, for example, a first air outlet 15 and a second air outlet 16, the first air outlet 15 is connected to the first air supply passage 201 of the refrigerating chamber 200 of the refrigerator 1, and the second air outlet 16 is connected to the second air supply passage 301 of the freezing chamber 300 of the refrigerator 1. The cool air sucked into the housing 10 of the air-sending device 100 by the fan 20 can be sent to the refrigerating compartment 200 through the first air outlet 15 and the first air-sending channel 201, and then through the refrigerating compartment baffle 202, and can be sent to the freezing compartment 300 through the second air outlet 16 and the air-sending channel 301.

Fig. 14 shows a cross-sectional view of the blower device 100 in a closed state. As shown in fig. 14, the driving mechanism provided inside the fixed portion 34 moves the movable portion 31 toward the first support 11 along the axial direction of the fan 20, thereby causing the second air outlet 16 to be in a closed state and the first air outlet 15 to be in an open state. At this time, the cold air heat-exchanged with the evaporator 401 cannot be supplied to the freezing compartment 300 of the refrigerator 1 via the blower device 100, and since the refrigerating compartment flap 202 is in an opened state, the cold air can be supplied to the refrigerating compartment 300 of the refrigerator 1 via the circulation hole 31A of the blower device 100 and the refrigerating compartment flap 202.

Fig. 15 shows a cross-sectional view of the blower device 100 in an open state. As shown in fig. 15, the driving mechanism moves the movable portion 31 toward the second support body 12 in the axial direction of the fan 20, thereby causing both the first air outlet 15 and the second air outlet 16 to be in an open state. At this time, cold air heat-exchanged with the evaporator 401 can be supplied to the freezing compartment 300 of the refrigerator 1 via the blower device 100, but since the refrigerating compartment shutter 202 is in a closed state, cold air cannot be supplied to the refrigerating compartment 300 of the refrigerator 1 via the blower device 100.

Further, when the refrigerator 1 cools only the refrigerator compartment 200, the driving mechanism drives the movable portion 31 to move toward the first support 11, thereby closing the second air outlet 16, opening the first air outlet 15, and opening the refrigerator compartment damper 202, whereby the freezing compartment 300 is not cooled at the same time when the refrigerator 1 cools only the refrigerator compartment 200, a temperature rise in the freezing compartment 300 is not caused, and the cooling efficiency of the cooling system can be improved, thereby achieving an effect of reducing energy consumption.

In addition, during defrosting of the refrigerator 1, the driving mechanism drives the movable part 31 to move toward the first support body, thereby closing the second air outlet 16, opening the first air outlet 15, and opening the refrigerating chamber damper 202, and therefore, during defrosting, convection circulation of the evaporating chamber and the refrigerating chamber can be increased, defrosting efficiency can be improved, heat can be prevented from invading into the refrigerating chamber through the air duct due to closing of the freezing chamber air outlet, temperature in the chamber can be increased, temperature fluctuation can be prevented from being increased, defrosting time of the refrigerator 1 can be shortened, and energy consumption of the refrigerator 1 can be saved.

The air blowing device of the present utility model is not limited to use in a refrigerator, and may be applied to a device having an air blowing duct and requiring adjustment of opening and closing of each air outlet.

While the utility model has been described in detail in connection with the drawings and embodiments, it should be understood that the foregoing description is not intended to limit the utility model in any way. Modifications and variations of the utility model may be made as desired by those skilled in the art without departing from the true spirit and scope of the utility model, and such modifications and variations fall within the scope of the utility model.

Claims

1. An air supply device, comprising:

a housing having at least one air intake and a plurality of air outlets;

a fan capable of sucking gas into the housing through the suction port and discharging the gas through the air outlet; and

a fan baffle disposed within the housing, comprising:

a movable portion including a flow hole formed in a peripheral wall of the movable portion, the flow hole being provided in correspondence with at least one of the plurality of air outlets, and a shielding portion provided in correspondence with the other of the plurality of air outlets; and

and a fixed part which is arranged to surround the movable part, and a driving mechanism is arranged on the inner side of the fixed part, and the driving mechanism drives the movable part to move along the rotating shaft direction of the fan.

2. The air supply device according to claim 1, wherein,

the fan is a centrifugal fan, and the shielding part is arranged on the periphery of the fan in a mode of surrounding the air outlet surface of the fan.

3. The air supply device according to claim 2, wherein,

the fan is fixed to the fixing portion such that an air outlet surface thereof is exposed to the outside of a peripheral wall of the fixing portion.

4. The air supply device according to claim 1, wherein,

an air guide member for guiding air flowing to the at least one air outlet is provided in the housing.

5. The air supply device according to claim 4, wherein,

the housing is composed of a first support body and a second support body which are arranged opposite to each other,

the fixed part is fixed on the second support body, and the movable part is driven by the driving mechanism arranged on the inner side of the fixed part, so that the movable part moves between the first support body and the second support body.

6. The air supply device according to claim 1, further comprising:

a seal ring provided between the movable portion and the fixed portion, the seal ring being fixed to the fixed portion,

the seal rings can be respectively abutted with two ends of the peripheral wall of the movable part.

7. The air supply device according to claim 5, wherein,

the air guide member is fixed to the first support body, and has a convex portion and an extension portion formed along an outer periphery of the movable portion at a position where the air guide member contacts the movable portion.

8. The air supply device according to claim 5, wherein,

the movable part is close to the downside of one end of the first support body and is provided with a first drain hole, and the first support body is provided with a second drain hole in a position corresponding to the first drain hole.

9. The air supply device according to claim 1, wherein,

the fan baffle is arranged at an angle of inclination alpha relative to the vertical, wherein 0 deg. alpha.ltoreq.5 deg..

10. A refrigerator, wherein,

a blower device according to any one of claims 1 to 9;

a refrigerating chamber and a freezing chamber;

an evaporator for cooling the gas;

a first air supply passage communicating with the refrigerating chamber of the refrigerator and supplying cool air to the refrigerating chamber of the refrigerator;

a second air supply passage communicating with the freezing chamber of the refrigerator and supplying cool air to the freezing chamber of the refrigerator, and

a refrigerating chamber baffle plate positioned between the refrigerating chamber and the air supply channel,

the air suction inlet of the air supply device is communicated with the evaporator and is used for sucking cool air from the evaporator, the at least one air outlet of the air supply device is communicated with the first air supply channel, and the other air outlets of the air supply device are communicated with the second air supply channel.