CN107940872B - Air supply device and refrigerator - Google Patents
Air supply device and refrigerator Download PDFInfo
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- CN107940872B CN107940872B CN201711181135.2A CN201711181135A CN107940872B CN 107940872 B CN107940872 B CN 107940872B CN 201711181135 A CN201711181135 A CN 201711181135A CN 107940872 B CN107940872 B CN 107940872B
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- guide
- air
- section
- air door
- guide shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
Abstract
The invention discloses an air supply device and a refrigerator, relates to the technical field of refrigeration equipment, and can realize control of a plurality of air doors in a narrow air duct and reduce cost. Air supply arrangement includes the wind channel shell, be formed with the wind chamber in the wind channel shell, the wind channel shell includes wind channel bottom plate and wind channel lateral wall, the air outlet has been seted up on the wind channel lateral wall, air outlet department is equipped with the air door that is used for the switching air outlet, be equipped with rotation axis and guiding axle on the air door, rotation axis and guiding axle are all perpendicular with the wind channel bottom plate, the air door passes through the rotation axis and articulates with the wind channel shell, the circular arc groove has been seted up on the wind channel bottom plate, the centre of a circle in circular arc groove is located the axis of rotation, one side that the wind chamber was kept away from to the wind channel bottom plate is equipped with rotatable positioning disk, the guiding groove has been seted up on the positioning disk, the one end of guiding axle is passed the circular arc groove. The invention is used for air supply of the air-cooled refrigerator.
Description
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to an air supply device and a refrigerator.
Background
The refrigerator is used for storing various foods, and the storage conditions (such as temperature) required by different foods are different, so that a plurality of storage chambers are often arranged in the refrigerator, and the temperatures of the storage chambers are different, so that a refrigeration system in the refrigerator is required to realize that the plurality of storage chambers are under different temperature conditions. Meanwhile, the existing refrigerator has the advantages that the refrigeration mode comprises direct cooling and air cooling, the air cooling mode can accelerate the air flow in the refrigerator, the refrigeration effect is good, the temperature distribution in each storage chamber is uniform, frostless effect can be realized, and the refrigerator has great advantages.
The prior art provides an air-cooled refrigerator, as shown in fig. 1, the storage chambers in a cabinet 01 of the refrigerator are distributed from top to bottom as a refrigerating chamber 011, a humidity-dry adjustable chamber 012 (for example, a holding drawer) and a freezing chamber 013, an air duct 02 is arranged in a foaming layer of the cabinet 01, an evaporator 03 and a fan 04 are arranged in the air duct 02, the number of the air ducts 02 is at least three, the air ducts are respectively communicated with the refrigerating chamber 011, the humidity-dry adjustable chamber 012 and the freezing chamber 013, and air outlets are respectively arranged corresponding to the refrigerating chamber 011, the humidity-dry adjustable chamber 012 and the freezing chamber 013, so that cold air can be delivered into each storage chamber by the fan 04 to refrigerate each storage. In order to realize different temperature conditions of each storage chamber, the existing scheme is generally that the sizes of the air inlet openings of the three air ducts 02 are set to be different, and then the air inlet amount of cold air entering each storage chamber is different correspondingly. Or, air doors are arranged at air outlets of the air duct 02 ports leading to the storage rooms, and the air doors are directly driven to rotate by the motor, so that the air doors are opened or closed to control the size of cold air entering the different storage rooms. The mode of motor control air door not only can realize the different temperature conditions of each storeroom, and can adjust the temperature often.
However, referring to fig. 1, due to the limitation of the internal space of the refrigerator, the space inside the air duct 02 is often relatively narrow, and a plurality of air doors may be disposed at different positions in order to open or close different air ducts 02, so that if the output shaft of the motor is directly connected to the air doors to drive the air doors to open or close, a plurality of motors are required to be disposed, which is not good for the layout inside the narrow air duct 02 on the one hand, and increases the cost on the other hand.
Disclosure of Invention
The embodiment of the invention provides an air supply device and a refrigerator, which can realize control of a plurality of air doors in a narrow air duct and reduce cost.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
an air supply device comprises an air duct shell, wherein an air cavity is formed in the air duct shell, the air duct shell comprises an air duct bottom plate and an air duct side wall, an air outlet is formed in the air duct side wall, an air door for opening and closing the air outlet is arranged at the air outlet, a rotating shaft and a guide shaft are arranged on the air door, the rotating shaft and the guide shaft are both perpendicular to the air duct bottom plate, the air door is hinged with the air duct shell through the rotating shaft, an arc groove is formed in the air duct bottom plate, the circle center of the arc groove is located on the rotating axis of the rotating shaft, a rotatable guide disc is arranged on one side, away from the air cavity, of the air duct bottom plate, a guide groove is formed in the guide disc, one end of the guide shaft penetrates through the arc groove and extends into the guide groove, and when the guide disc rotates, the guide groove can drive, to swing the damper between an open position and a closed position.
On the other hand, the embodiment of the invention also provides a refrigerator which comprises the air supply device.
The air supply device and the refrigerator provided by the embodiment of the invention comprise an air duct shell, wherein an air cavity is formed in the air duct shell, an air outlet is formed in the air duct side wall of the air duct shell, and an air door for opening and closing the air outlet is arranged at the air outlet. The air door is hinged with the air duct shell through a rotating shaft perpendicular to the air duct bottom plate, a guide shaft on the air door penetrates through an arc groove on the air duct bottom plate, and the circle center of the arc groove is located on the rotating axis of the rotating shaft. Further, when the damper is opened or closed, the guide shaft moves along the arc groove. In order to drive the air door to be opened or closed, a rotatable guide disc is arranged on one side, away from the air cavity, of the air duct bottom plate, a guide groove is formed in the guide disc, and one end of a guide shaft penetrates through the arc groove and extends into the guide groove. Compared with the prior art, the shape of positioning disk can be fine narrow space in the adaptation wind channel, easy overall arrangement, and it is rotatory through the positioning disk, the cooperation of guide way and guiding axle can control opening or closing of air door, like this, when needs set up a plurality of air doors, the guide way only needs to be seted up to the position that corresponds the guiding axle of each air door on the positioning disk, can realize opening or closing of a plurality of air doors of control, at this moment, it is rotatory only to need to set up a motor control positioning disk, need not set up a plurality of motors, and then the cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural view of an air-cooled refrigerator of the prior art;
FIG. 2 is a first exploded view of an air supply device according to an embodiment of the present invention;
FIG. 3 is a second exploded schematic view of an air supply device according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a guiding groove of an air supply device according to an embodiment of the present invention, which includes an opening guiding section, a closing guiding section, and a position ensuring section;
FIG. 5 is a first schematic view illustrating a structure of an air blowing device according to an embodiment of the present invention, in which a guide plate rotates counterclockwise to open a damper;
FIG. 6 is a second schematic structural view illustrating a structure of an air blowing device according to an embodiment of the present invention, in which a guide plate rotates counterclockwise to open a damper;
FIG. 7 is a third schematic view of a guiding plate of an air supply device according to an embodiment of the present invention rotating counterclockwise to open a damper;
FIG. 8 is a schematic structural view of a guide plate when three dampers are provided in the air supply apparatus according to the embodiment of the present invention;
FIG. 9 is a schematic structural diagram of an air duct casing when the air supply device of the embodiment of the invention is provided with three air doors;
FIG. 10 is a schematic structural view of the guiding plate in an initial state when three dampers are provided in the air supply device according to the embodiment of the present invention;
FIG. 11 is a schematic structural view of the guiding plate rotating 15 degrees counterclockwise when three dampers are provided in the blowing device according to the embodiment of the present invention;
FIG. 12 is a schematic structural view of the guiding plate rotating 30 degrees counterclockwise when three dampers are provided in the blowing device according to the embodiment of the present invention;
FIG. 13 is a schematic structural view of the guiding plate rotating 45 degrees counterclockwise when three dampers are installed in the blowing device according to the embodiment of the present invention;
FIG. 14 is a schematic structural view of a guiding plate rotating 60 degrees counterclockwise when three dampers are provided in the blowing device according to the embodiment of the present invention;
FIG. 15 is a schematic structural view of the air supply apparatus according to the embodiment of the present invention, in which the guiding plate rotates counterclockwise by 75 degrees when three dampers are provided;
fig. 16 is a schematic structural view of the air supply device according to the embodiment of the present invention, in which the guide plate is rotated 90 degrees counterclockwise.
Reference numerals:
01-a box body; 011-a refrigerating chamber; 012-dry and wet adjustable chamber; 013-a freezing chamber; 02-air duct; 03-an evaporator; 04-a fan; 1-an air duct housing; 11-an air duct bottom plate; 111-arc groove; 111 a-a first arc groove; 111 b-a second arc groove; 111 c-a third arc groove; 12-air duct side wall; 2-air outlet; 21-a first air outlet; 22-a second air outlet; 23-a third air outlet; 3-a damper; 31-a rotating shaft; 32-a guide shaft; 33-a first damper; 34-a second damper; 35-a third damper; 4-a guiding disc; 41-a guide groove; 411-open guide section; 412-closing the guide section; 413-position holding section; 42-a first guide groove; 421-a first opening guide section; 422-a first open position retaining segment; 423-first closing guide section; 424-first closed position maintaining segment; 43-a second guide groove; 431-a second initial position holding section; 432-a second opening guide section; 433 — a second open position maintaining section; 434-a second closed guide section; 435-a second closed position holding section; 44-a third guide groove; 441-a third initial position holding section; 442-a third open guide section; 443-a third open position holding section; 444-a third closed guide section; 5, a fan; 6-step motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships that are based on the orientation or positional relationships shown in the drawings or assemblies, are used for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment of the invention provides an air supply device, as shown in fig. 2 and 3, the air supply device comprises an air duct shell 1, an air cavity is formed in the air duct shell 1, the air duct shell 1 comprises an air duct bottom plate 11 and an air duct side wall 12, an air outlet 2 is formed in the air duct side wall 12, an air door 3 for opening and closing the air outlet 2 is arranged at the air outlet 2, a rotating shaft 31 and a guide shaft 32 are arranged on the air door 3, the rotating shaft 31 and the guide shaft 32 are both vertical to the air duct bottom plate 11, the air door 3 is hinged with the air duct shell 1 through the rotating shaft 31, an arc groove 111 is formed in the air duct bottom plate 11, the circle center of the arc groove 111 is located on the rotating axis of the rotating shaft 31, a rotatable guide disc 4 is arranged on one side of the air duct bottom plate 11 far away from the air cavity, a guide groove 41 is formed in the guide disc 4, one end of the guide shaft 41 penetrates through, to swing the damper 3 between the open and closed positions.
As shown in fig. 2 and 3, the air supply device according to the embodiment of the present invention includes an air duct housing 1, an air cavity is formed in the air duct housing 1, an air outlet 2 is formed on an air duct side wall 12 of the air duct housing 1, and an air door 3 for opening and closing the air outlet 2 is disposed at the air outlet 2. The air door 3 is hinged with the air duct shell 1 through a rotating shaft 31 perpendicular to the air duct bottom plate 11, a guide shaft 32 on the air door 3 penetrates through an arc groove 111 on the air duct bottom plate 11, and the circle center of the arc groove 111 is located on the rotating axis of the rotating shaft 31. Further, when the damper 3 is opened or closed, the guide shaft 32 moves along the arc groove 111. In order to drive the air door 3 to open or close, a rotatable guide disc 4 is arranged on one side of the air duct bottom plate 11 away from the air cavity, a guide groove 41 is arranged on the guide disc 4, and one end of the guide shaft 32 extends into the guide groove 32 through the circular arc groove 111, so that when the guide disc 4 rotates, the guide groove 41 can drive the guide shaft 32 to rotate around the rotating shaft 31 to drive the air door 3, and the air door 3 can swing between an open position and a closed position. Compared with the prior art, the shape of positioning disk 4 can be fine narrow space in the adaptation wind channel, easy overall arrangement, and it is rotatory through positioning disk 4, opening or closing of air door 3 can be controlled in the cooperation of guide way 41 and guiding axle 32, thus, when needs set up a plurality of air doors 3, only need set up guide way 41 in the position of the guiding axle 32 that corresponds each air door 3 on positioning disk 4, can realize opening or closing of controlling a plurality of air doors 3, at this moment, only need set up a motor control positioning disk 4 rotatory, need not set up a plurality of motors, and then the cost is reduced.
In order to realize the temperature change of a plurality of storerooms of the refrigerator, a plurality of air ducts can be arranged, and meanwhile, an air door 3 is arranged at the inlet of each air duct (namely, an air outlet 2 of the air duct shell 1). As shown in fig. 2, for setting up three air outlets 2, and all set up the schematic structural diagram of air door 3 in every air outlet 2 department, specifically, a plurality of air outlets 2 have been seted up on the wind channel lateral wall 12, every air outlet 2 department all is equipped with an air door 3, in order to control three air door 3 simultaneously, many circular arc grooves 111 have been seted up on the wind channel bottom plate 11, many guide ways 41 have been seted up on the positioning disk 4, the guiding axle 32 of an air door 3 corresponds and passes an circular arc groove 11 and stretches into a guiding groove 41, and thus, when the positioning disk 4 is rotatory, many guide ways 41 can drive a plurality of guiding axles 32 respectively and rotate around its corresponding rotation axis 31, so that a plurality of air doors 3 swing between open position and closed position, and then realize the control to a plurality of air doors 3.
Referring to fig. 4, the position and shape of the guide groove 41 determines the direction in which the guide groove 41 can apply force to the guide shaft 32, that is, determines the movement state of the damper 3. In order to open and close the damper 3, the guide groove 41 includes an opening guide section 411 and a closing guide section 412 that communicate with each other, and referring again to fig. 5, 6 and 7, when the guide shaft 32 is located in the opening guide section 411, the guide shaft 32 slides relative to the opening guide section 411 as the guide disc 4 rotates, and the opening guide section 411 can apply a force to the guide shaft 32 that rotates to the open position to rotate the damper 3 to the open position; similarly, when the guide shaft 32 is located in the closing guide section 412, the guide shaft 32 slides relative to the closing guide section 412 as the guide disk 4 rotates, and the closing guide section 412 can apply a force to the guide shaft 32 to rotate toward the closed position, so that the damper 3 rotates toward the closed position.
For convenience of description, fig. 5, 6, and 7 show states when the guide disc 4 is rotated counterclockwise by 5 degrees, 10 degrees, and 15 degrees from the initial position, respectively.
In order to smooth the opening and closing motion of the damper 3, as shown in fig. 4, the opening guide section 411 and the closing guide section 412 are both linear grooves. Thus, the directions of the forces applied to the guide shaft 32 by the opening guide section 411 and the closing guide section 412 are linearly changed, so that the damper 3 can be smoothly and gradually opened or closed.
Since a plurality of dampers 3 are provided and it may be necessary to have a plurality of dampers 3 in different states according to different temperature change requirements, for example, when one or more dampers 3 are opened or closed, another one or more dampers 3 are required to be kept in an open position or a closed position, referring to fig. 2, during the rotation of the guide tray 4, the guide shaft 32 is continuously slid in the guide slot 41, so that the guide slot 41 does not apply a force to the guide shaft 32 for a certain period of time during the rotation of the guide tray 4, and thus, when one or more dampers 3 are opened or closed, another one or more dampers 3 are required to be kept in an open position or a closed position. As shown in fig. 4, the guide groove 41 further includes a position maintaining section 413, and when the guide shaft 32 is located in the position maintaining section 413, the guide shaft 32 slides with respect to the position maintaining section 413 as the guide disc 4 rotates, and the position maintaining section 413 does not apply a rotational force to the guide shaft 32 to maintain the damper 3 at the current position.
Referring to fig. 4, the position holding end 413 may be an open position holding section or a closed position ensuring section, and the structure on the guide disc 4 is represented by an arc-shaped groove, that is, the position holding section 413 is an arc-shaped groove, and the center of the position holding section 413 is the rotation center of the guide disc 4. In this way, when the guide shaft 32 is located at the position holding section of the arc-shaped groove during the rotation of the guide plate 4, since the distance between each position of the arc-shaped groove and the rotation center of the guide plate 4 is not changed, the force is not applied to the guide shaft 32, and the damper 3 can be held at the current position.
Since the guide plate 4 is rotated, the guide grooves 41 are formed around the circumferential direction of the guide plate 4 so that the guide grooves 41 can be continuously engaged with the guide shaft 32, and thus, the plurality of guide grooves 41 are arranged in the radial direction of the guide plate 4 so that the plurality of guide grooves 41 do not interfere with each other, as shown in fig. 8. Meanwhile, when a plurality of guide grooves 41 are provided, in the process of rotation of the guide disc 4, the plurality of guide grooves 41 are respectively and simultaneously matched with the plurality of guide shafts 32, if the central angle of the guide disc 4 corresponding to a certain guide groove 41 is small, the rotatable angle of the guide disc 4 is small due to the matching of the guide groove 41 and the guide shafts 32, and further the matching of other guide grooves 41 and the guide shafts 32 is affected, so that other guide shafts 32 cannot slide to the maximum or minimum positions of the guide grooves 41, and further the corresponding air doors 3 cannot be completely opened or closed. Therefore, referring to fig. 8, the central angles of the guide disks 4 corresponding to the plurality of guide grooves 41 are the same. Wherein, the included angle between the connecting line of the two ends of the guide groove 41 and the rotation center of the guide disc 4 is the central angle of the guide disc 4 corresponding to the guide groove 41.
In order to control the plurality of dampers 3 in different position states and to change the temperature of each storage chamber in the refrigerator, the positions or the number of the opening guide section 411, the closing guide section 412 and the position guide section 413 of the guide groove 41 may be set as required. Taking the structure of the three air doors 3 as an example, an arrangement mode is preferred, which can realize that the three air doors 3 can be in different position states in the rotation process of the guide disc 4, specifically, as shown in fig. 9, the air duct side wall 12 is provided with a first air outlet 21, a second air outlet 22 and a third air outlet 23, the first air outlet 21 is provided with a first air door 33, the second air outlet 22 is provided with a second air door 34, the third air outlet 23 is provided with a third air door 35, the air duct bottom plate 11 is provided with a first arc groove 111a, a second arc groove 111b and a third arc groove 111c, as shown in fig. 8 and 10, the guide disc 4 is provided with a first guide groove 42, a second guide groove 43 and a third guide groove 44, the guide shaft 32 of the first air door 33 correspondingly passes through the first arc groove 111a and extends into the first guide groove 42, the guide shaft 32 of the second air door 34 correspondingly passes through the second arc groove 111b and extends into the second guide groove 43, the guide shaft 32 of the third damper 35 correspondingly passes through the third arc groove 111c and extends into the third guide groove 44. As shown in fig. 8, the first guide groove 42 includes a first opening guide section 421, a first opening position holding section 422, a first closing guide section 423, and a first closing position holding section 424 that are sequentially communicated in the first rotation direction of the guide tray 4, the second guide groove 43 includes a second initial position holding section 431, a second opening guide section 432, a second opening position holding section 433, a second closing guide section 434, and a second closing position holding section 435 that are sequentially communicated in the first rotation direction, and the third guide groove 44 includes a third initial position holding section 441, a third opening guide section 442, a third opening position holding section 443, and a third closing guide section 444 that are sequentially communicated in the first rotation direction.
According to the above structure, the position states in which the first damper 33, the second damper 34, and the third damper 35 can respectively appear when the guide tray 4 is rotated will be specifically described.
As shown in fig. 10, when the guide plate 4 is located at the initial position, the first damper 33, the second damper 34, and the third damper 35 are all in the closed position, and the guide shaft 32 of the first damper 33 is located at the start end of the first open guide section 421, the guide shaft 32 of the second damper 34 is located at the start end of the second initial position holding section 431, and the guide shaft 32 of the third damper 35 is located at the start end of the third initial position holding section 441;
as shown in fig. 11, when the guide disc 4 rotates through a first preset angle in the first rotation direction, the guide shaft 32 of the first damper 33 drives the first damper 33 to rotate to the open position under the action of the first opening guide section 421, and at this time, the guide shaft 32 of the first damper 33 is located at the end of the first opening guide section 421; meanwhile, the guide shaft 32 of the second damper 34 relatively slides to the end of the second initial position maintaining section 431, and since the second initial position maintaining section 431 does not apply a rotational force to the guide shaft 32 of the second damper 34, the second damper 34 is still maintained at the closed position; meanwhile, the guide shaft 32 of the third damper 35 relatively slides to the middle of the third initial position holding section 441, and the third damper 35 is still held at the closed position;
as shown in fig. 12, when the guide disc 4 continues to rotate in the first rotation direction by the second preset angle, the guide shaft 32 of the first damper 33 slides relatively to the middle of the first open position maintaining section 422, and the first damper 33 remains in the open position; meanwhile, the guide shaft 32 of the second damper 34 drives the second damper 34 to rotate to the open position under the action of the second opening guide section 432, and at this time, the guide shaft 32 of the second damper 34 is located at the tail end of the second opening guide section 432; meanwhile, the guide shaft 32 of the third damper 35 slides relatively to the end of the third initial position holding section 441, and the third damper 35 remains in the closed position;
as shown in fig. 13, when the guide disc 4 continues to rotate in the first rotation direction by the third preset angle, the guide shaft 32 of the first damper 33 slides relatively to the end of the first open position holding section 422, and the first damper 33 remains in the open position; meanwhile, the guide shaft 32 of the second damper 34 relatively slides to the middle of the second open position holding section 433, and the second damper 34 remains in the open position; meanwhile, the guide shaft 32 of the third damper 35 drives the third damper 35 to rotate to the open position under the action of the third opening guide section 442, and at this time, the guide shaft 32 of the third damper 35 is located at the tail end of the third opening guide section 442;
as shown in fig. 14, when the guide disc 32 continues to rotate by a fourth preset angle in the first rotation direction, the guide shaft 32 of the first damper 33 drives the first damper 33 to rotate to the closed position under the action of the first closing guide section 423, and at this time, the guide shaft 32 of the first damper 33 is located at the end of the first closing guide section 423; at the same time, the guide shaft 32 of the second damper 34 slides relatively to the end of the second open position holding section 433, and the second damper 34 remains in the open position; meanwhile, the guide shaft 32 of the third damper 35 relatively slides to the middle of the third open position maintaining section 443, and the third damper 35 remains at the open position;
as shown in fig. 15, when the guide disc 4 continues to rotate through the fifth preset angle in the first rotation direction, the guide shaft 32 of the first damper 33 slides relatively to the middle of the first closed position maintaining section 424, and the first damper 33 remains in the closed position; meanwhile, the guide shaft 32 of the second damper 34 drives the second damper 34 to rotate to the closed position under the action of the second closing guide section 434, and at this time, the guide shaft 32 of the second damper 34 is located at the end of the second closing guide section 434; at the same time, the guide shaft 32 of the third damper 35 slides relatively to the end of the third open position retaining section 443, and the third damper 35 remains in the open position;
as shown in fig. 16, when the guide disc 4 continues to rotate through the sixth preset angle in the first rotation direction, the guide shaft 32 of the first damper 33 slides relatively to the end of the first closed position maintaining section 424, and the first damper 33 remains in the closed position; at the same time, the guide shaft 32 of the second damper 34 slides relatively to the end of the second closed position maintaining section 435, and the second damper 34 remains in the closed position; meanwhile, the guide shaft 32 of the third damper 35 drives the third damper 35 to rotate to the closed position under the action of the third closing guide section 444, and at this time, the guide shaft 32 of the third damper 35 is located at the end of the third closing guide section 444.
At this time, when the guide disc 4 rotates in the direction opposite to the first rotation direction, the movement process of the damper 3 is the reverse of the above process, and will not be described in detail herein. Through the process, the temperature change in each storage chamber in the refrigerator can be controlled by controlling the plurality of air doors 3 to be in different position states.
It should be noted that the preset angles can be set according to actual needs, and preferably, the pins between the preset angles are consistent, so that the rotation angles of the guide disc 4 are consistent every time the mutual position state of the three dampers 3 is changed, which is beneficial to control. The first rotation direction may be a clockwise direction or a counterclockwise direction, for example, the first rotation direction is the counterclockwise direction, the first preset angle is 15 degrees, the second preset angle is 30 degrees, the third preset angle is 45 degrees, the fourth preset angle is 60 degrees, the fifth preset angle is 75 degrees, and the sixth preset angle is 90 degrees. In addition, the number of the dampers 3 is not limited, and may be one, two, three, four or more, and the control principle may be similar to the principle of the three dampers 3, and only the number of the guide slots 41, the number of the segments of each guide slot 41, the length of each segment, the arrangement mode, etc. need to be changed; in addition, the shape, position, arrangement order, etc. of the guide grooves 41 may be changed according to actual control requirements, and all of them are within the scope of the present invention.
As shown in fig. 2, a fan 5 is arranged in the air cavity, the fan 5 is used for conveying cold air, and in order to convey cold air to other positions in the refrigerator more conveniently, the air outlet side of the fan 5 is opposite to the air outlet 2.
The rotation of the guiding disc 4 can be driven by a motor, and in order to control and program the rotation angle of the guiding disc 4, as shown in fig. 2, the guiding disc 4 is connected with a stepping motor 6, and the stepping motor 6 can drive the guiding disc 4 to rotate by a preset angle.
On the other hand, the embodiment of the invention also provides a refrigerator which comprises the air supply device.
The refrigerator provided by the embodiment of the invention comprises the air supply device, so that the refrigerator has the same technical effects of realizing control of a plurality of air doors in a narrow air channel and reducing the cost.
The air supply device according to the embodiment of the present invention may be applied not only to an air-cooled refrigerator, but also to a refrigeration apparatus, such as a refrigerator, that needs to adjust the size of the intake air of a plurality of air ducts.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (12)
1. An air supply device is characterized by comprising an air duct shell, an air cavity is formed in the air duct shell, the air duct shell comprises an air duct bottom plate and an air duct side wall, an air outlet is formed in the air duct side wall, an air door for opening and closing the air outlet is arranged at the air outlet, a rotating shaft and a guide shaft are arranged on the air door, the rotating shaft and the guide shaft are both perpendicular to the air duct bottom plate, the air door is hinged with the air duct shell through the rotating shaft, an arc groove is formed in the air duct bottom plate, the circle center of the arc groove is located on the rotating axis of the rotating shaft, a rotatable guide disc is arranged on one side, away from the air cavity, of the air duct bottom plate, a guide groove is formed in the guide disc, one end of the guide shaft penetrates through the arc groove and extends into the guide groove, and when the guide disc rotates, the guide groove can drive the guide, to swing the damper between an open position and a closed position.
2. The air supply device according to claim 1, wherein a plurality of air outlets are formed in the side wall of the air duct, one air door is disposed at each air outlet, a plurality of arc grooves are formed in the bottom plate of the air duct, a plurality of guide grooves are formed in the guide plate, a guide shaft of one air door correspondingly penetrates one arc groove and extends into one guide groove, and when the guide plate rotates, the plurality of guide grooves can respectively drive the plurality of guide shafts to rotate around the corresponding rotating shafts, so that the plurality of air doors can swing between the open position and the closed position.
3. The air supply device according to claim 2, wherein the guide groove includes an opening guide section and a closing guide section that communicate with each other, and when the guide shaft is located in the opening guide section, the guide shaft slides relative to the opening guide section as the guide disk rotates, and the opening guide section can apply a force to the guide shaft that rotates toward the open position, so that the damper rotates toward the open position; when the guide shaft is located within the closed guide section, the guide shaft slides relative to the closed guide section as the guide disc rotates, and the closed guide section is capable of applying a force to the guide shaft that rotates toward the closed position to rotate the damper toward the closed position.
4. The air supply device according to claim 3, wherein the opening guide section and the closing guide section are both linear grooves.
5. The air supply device according to claim 3, wherein the guide groove further includes a position retaining section, the guide shaft slides relative to the position retaining section as the guide tray rotates when the guide shaft is located in the position retaining section, and the position retaining section does not apply a rotational force to the guide shaft to retain the damper at the current position.
6. The air supply device according to claim 5, wherein the position holding section is a circular arc-shaped groove, and a center of the position holding section is a rotation center of the guide disk.
7. The air supply device according to claim 5, wherein the plurality of guide grooves are arranged in a radial direction of the guide plate, and the number of central angles of the guide plate corresponding to the plurality of guide grooves is the same.
8. The air supply device according to claim 7, wherein the air duct side wall has a first air outlet, a second air outlet, and a third air outlet, the first air outlet has a first air door, the second air outlet has a second air door, the third air outlet has a third air door, the air duct bottom plate has a first arc groove, a second arc groove, and a third arc groove, the guide plate has a first guide groove, a second guide groove, and a third guide groove, the guide shaft of the first air door correspondingly passes through the first arc groove and extends into the first guide groove, the guide shaft of the second air door correspondingly passes through the second arc groove and extends into the second guide groove, the guide shaft of the third air door correspondingly passes through the third arc groove and extends into the third guide groove, the first guide groove includes a first opening guide section, a second opening guide section, and a third opening guide section, which are sequentially connected along a first rotation direction of the guide plate, The first opening position maintaining section, the first closing guide section and the first closing position maintaining section are sequentially communicated along the first rotating direction, the second guide groove comprises a second initial position maintaining section, a second opening guide section, a second opening position maintaining section, a second closing guide section and a second closing position maintaining section, and the third guide groove comprises a third initial position maintaining section, a third opening guide section, a third opening position maintaining section and a third closing guide section, which are sequentially communicated along the first rotating direction.
9. The air supply device according to claim 8, wherein when the guide tray is at an initial position, the first damper, the second damper, and the third damper are all at a closed position, and a guide shaft of the first damper is located at a start end of the first open guide section, a guide shaft of the second damper is located at a start end of the second initial position holding section, and a guide shaft of the third damper is located at a start end of the third initial position holding section;
when the guide disc rotates by a first preset angle along the first rotating direction, the guide shaft of the first air door drives the first air door to rotate to an open position under the action of the first opening guide section, the guide shaft of the second air door relatively slides to the tail end of the second initial position holding section, and the guide shaft of the third air door relatively slides to the middle of the third initial position holding section;
when the guide disc continues to rotate by a second preset angle along the first rotation direction, the guide shaft of the first air door relatively slides to the middle of the first opening position holding section, the guide shaft of the second air door drives the second air door to rotate to an opening position under the action of the second opening guide section, and the guide shaft of the third air door relatively slides to the tail end of the third initial position holding section;
when the guide disc continues to rotate for a third preset angle along the first rotating direction, the guide shaft of the first air door relatively slides to the tail end of the first opening position holding section, the guide shaft of the second air door relatively slides to the middle of the second opening position holding section, and the guide shaft of the third air door drives the third air door to rotate to an opening position under the action of the third opening guide section;
when the guide disc continues to rotate for a fourth preset angle along the first rotating direction, the guide shaft of the first air door drives the first air door to rotate to a closed position under the action of the first closed guide section, the guide shaft of the second air door relatively slides to the tail end of the second open position holding section, and the guide shaft of the third air door relatively slides to the middle of the third open position holding section;
when the guide disc continues to rotate for a fifth preset angle along the first rotating direction, the guide shaft of the first air door relatively slides to the middle of the first closed position maintaining section, the guide shaft of the second air door drives the second air door to rotate to a closed position under the action of the second closed guide section, and the guide shaft of the third air door relatively slides to the tail end of the third open position maintaining section;
when the guide disc continues to rotate for a sixth preset angle along the first rotating direction, the guide shaft of the first air door relatively slides to the tail end of the first closed position maintaining section, the guide shaft of the second air door relatively slides to the tail end of the second closed position maintaining section, and the guide shaft of the third air door drives the third air door to rotate to a closed position under the action of the third closed guide section.
10. The air supply device according to any one of claims 1 to 9, wherein a fan is arranged in the air cavity, and an air outlet side of the fan is opposite to the air outlet.
11. The air supply device according to any one of claims 1 to 9, wherein a stepping motor is connected to the guide disc, and the stepping motor can drive the guide disc to rotate by a preset angle.
12. A refrigerator comprising the air blowing device according to any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711181135.2A CN107940872B (en) | 2017-11-23 | 2017-11-23 | Air supply device and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711181135.2A CN107940872B (en) | 2017-11-23 | 2017-11-23 | Air supply device and refrigerator |
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| Publication Number | Publication Date |
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| CN107940872A CN107940872A (en) | 2018-04-20 |
| CN107940872B true CN107940872B (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711181135.2A Active CN107940872B (en) | 2017-11-23 | 2017-11-23 | Air supply device and refrigerator |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826794A (en) * | 2018-05-11 | 2018-11-16 | 海信（山东）冰箱有限公司 | A kind of shared wind cooling refrigerator |
| JP7291382B2 (en) * | 2019-05-24 | 2023-06-15 | アクア株式会社 | Shielding device and refrigerator with same |
| CN113218122A (en) * | 2021-04-23 | 2021-08-06 | 安徽康佳同创电器有限公司 | Air door mechanism and refrigerator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5678413A (en) * | 1994-12-10 | 1997-10-21 | Samsung Electronic, Co. Ltd. | Refrigerator and method for controlling temperature thereof by controlling cool air discharge direction |
| KR20040049616A (en) * | 2002-12-06 | 2004-06-12 | 엘지전자 주식회사 | Apparatus for supply the cool air of refrigerator |
| CN201100814Y (en) * | 2007-08-13 | 2008-08-13 | 海信（北京）电器有限公司 | Wind-cooled refrigerator |
| JP2011052910A (en) * | 2009-09-02 | 2011-03-17 | Sharp Corp | Refrigerator |
| CN103411369A (en) * | 2013-08-23 | 2013-11-27 | 合肥华凌股份有限公司 | Air duct assembly for refrigerator and refrigerator with same |
| CN205192034U (en) * | 2015-09-21 | 2016-04-27 | 青岛海尔股份有限公司 | Refrigerator |
| CN106885413A (en) * | 2017-03-23 | 2017-06-23 | 海信（山东）冰箱有限公司 | A kind of air guide member, air channel structure and wind cooling refrigerator for wind cooling refrigerator |
-
2017
- 2017-11-23 CN CN201711181135.2A patent/CN107940872B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5678413A (en) * | 1994-12-10 | 1997-10-21 | Samsung Electronic, Co. Ltd. | Refrigerator and method for controlling temperature thereof by controlling cool air discharge direction |
| KR20040049616A (en) * | 2002-12-06 | 2004-06-12 | 엘지전자 주식회사 | Apparatus for supply the cool air of refrigerator |
| CN201100814Y (en) * | 2007-08-13 | 2008-08-13 | 海信（北京）电器有限公司 | Wind-cooled refrigerator |
| JP2011052910A (en) * | 2009-09-02 | 2011-03-17 | Sharp Corp | Refrigerator |
| CN103411369A (en) * | 2013-08-23 | 2013-11-27 | 合肥华凌股份有限公司 | Air duct assembly for refrigerator and refrigerator with same |
| CN205192034U (en) * | 2015-09-21 | 2016-04-27 | 青岛海尔股份有限公司 | Refrigerator |
| CN106885413A (en) * | 2017-03-23 | 2017-06-23 | 海信（山东）冰箱有限公司 | A kind of air guide member, air channel structure and wind cooling refrigerator for wind cooling refrigerator |
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| Publication number | Publication date |
|---|---|
| CN107940872A (en) | 2018-04-20 |
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