CN104990338B - A kind of air door structure of refrigerator - Google Patents
A kind of air door structure of refrigerator Download PDFInfo
- Publication number
- CN104990338B CN104990338B CN201510458704.8A CN201510458704A CN104990338B CN 104990338 B CN104990338 B CN 104990338B CN 201510458704 A CN201510458704 A CN 201510458704A CN 104990338 B CN104990338 B CN 104990338B
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- China
- Prior art keywords
- door
- plate
- doorframe
- gasket
- locating piece
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Classifications
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Refrigerator Housings (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
A kind of air door structure of refrigerator, including pedestal, doorframe and door-plate, doorframe are mounted on pedestal, and door-plate is mounted on doorframe, and ventilation opening is formed among doorframe, and door-plate is rotated by driving mechanism and opens or closes the ventilation opening, it is characterised in that：The isolating pad that installation is used for the door-plate side being isolated with extraneous air duct in the side of door-plate, is equipped with gasket in doorframe, and the other side of door-plate pushes close packing in shutdown state.The air door structure of the refrigerator passes through after isolating pad is installed in the side of door-plate, it can effectively prevent occurring icing phenomenon on door-plate without installing heater, make that the structure of air door is more simple, cost is lower, and, after gasket is arranged in the door-plate other side, make door-plate that there is under shutdown state between doorframe preferable leakproofness.In addition, the air door structure can reduce the torque that positioning pin is born, prevent the connecting shaft position of output gear and door-plate from phenomenon of rupture occur, work is more reliable.
Description
Technical field
The present invention relates to a kind of air door structures of refrigerator.
Background technology
Current refrigerator is generally divided into freezing chamber and refrigerating chamber two spaces, freezing chamber and refrigerating chamber between each other with every
Plate separates, the fan room that evaporator is provided in the rear wall of refrigerator and is connected to evaporator, in freezer compartment of refrigerator and refrigerating chamber
Between be provided with the exhaust air flue being connected with fan room, exhaust air flue is connected to freezing chamber and refrigerating chamber respectively after branch, wind
The cold air cooled down through evaporator is directly blown into refrigerating chamber and freezing chamber by fan by exhaust air flue.In order to control refrigerating chamber
Freeze with freezing chamber, air door is provided in the exhaust air flue before branch.Due to the temperature difference between exhaust air flue and refrigerating chamber, when cold
When hiding room and stopping refrigeration, the relatively high air of temperature in refrigerating chamber can flow back into exhaust air flue, and the air of reflux is in wind
When door position encounters temperature lower cold air, it is easy the back side frosting in air door, after the frosting of the air door back side, air door can be caused dynamic
Make difficult, influence the aperture of air door, to easy to produce gap after so that air door is closed, causes the cold air of freezing chamber to enter always cold
It is freezing that Tibetan room makes fresh-keeping food be easy, also, air door can be made out of control under serious conditions, and refrigerator cannot be refrigerating chamber as requested
Refrigeration, and then the control accuracy of refrigerator is caused to decline.
Existing air door is generally equipped with cushion on the one side of door-plate, and door-plate rotation makes cushion be generated with contact therewith
Installation joint surface is opened and closed, and this air door structure can cause occur frozen beads phenomenon once in a while on door-plate, with the increase of frozen beads,
It influences the operating of air door and it is caused to occur driving bad phenomenon, thus, for this air door structure, need in the another of door-plate
Heater is added on one side, and deicing processing is carried out by the frozen beads on heater end of door plate.Although using the structure of heater
It can effectively prevent occurring frozen beads phenomenon on door-plate, but so that the structure of air door is become complicated using heater, but also cost
It is higher.
In addition, now widely used is electric flap, type of drive is using alternating current generator or stepper motor as dynamic
The rotary motion of motor is finally transmitted to the live spindle of air door door-plate by power component by intermediate a series of gear drive,
And then realize that the closing of door-plate and opening action, the structure of this electric flap can refer to Patent No. ZL 02221030.X and (award
Power notification number be CN 2549408Y) Chinese utility model patent disclosed in《Airing opening of refrigerator》.In existing air door
In gear transmission structure, positioning pin is located at the outside of output gear, i.e., positioning pin farther out from output gear center, due to positioning pin
Remoter from output gear center, the torque that output gear acts on it will be bigger, and becoming larger with torque, output gear and
The shaft portion that output gear is inserted on door-plate is susceptible to phenomenon of rupture, and then air door is caused to can not work normally.In conclusion
Need to be further improved existing refrigerator air door structure
Invention content
First technical problem to be solved by this invention is present situation for the above-mentioned prior art, is provided a kind of simple in structure
And the air door structure for occurring the refrigerator of icing phenomenon on door-plate can be prevented.
So second technical problem solved is present situation for the above-mentioned prior art, providing one kind can prevent the present invention
Occur that the torque that icing phenomenon can be such that positioning pin bears again is smaller, air door structure of the more structurally sound refrigerator of positioning on door-plate.
Technical solution is used by the present invention solves above-mentioned first technical problem：The air door structure of the refrigerator, packet
Pedestal, doorframe and door-plate are included, the doorframe is mounted on pedestal, and the door-plate is mounted on doorframe, and ventilation is formed among doorframe
Mouthful, the door-plate is rotated by driving mechanism and opens or closes the ventilation opening, is installed in the side of the door-plate
For the isolating pad for isolating the door-plate side with extraneous air duct, it is characterised in that：Sealing is installed in the doorframe
The other side of pad, the door-plate compresses the gasket under shutdown state, towards the four of door-plate side on the doorframe
Zhou Kaiyou mounting grooves, the mounting groove are trapped among the surrounding of the ventilation opening, and the gasket is in frame shape and is embedded in described
In mounting groove, the door-plate coordinates with the gasket-like at sealing under shutdown state.
Isolating pad is there are many mounting structure, it is preferable that form rectangular installation cavity in the side of the door-plate, it is described every
It is rectangular pad compatible with the rectangular installation cavity from pad, and isolating pad is embedded in the rectangular installation cavity.
It is more reliable in order to make to seal between door-plate and gasket, the door-plate towards gasket side periphery have to
The flange that gasket direction extends, under shutdown state, the flange is pressed on the gasket and makes the door-plate
Coordinate at sealing with gasket-like.
Further preferably, the isolating pad and gasket are cushion.
Technical solution is used by the present invention solves above-mentioned second technical problem：The driving of the wind door of refrigerator structure
Mechanism includes the output gear for driving gear and being meshed with driving gear, is equipped on the output gear same with output gear
The output shaft of rotation is walked, one end of the output shaft is connected with the door-plate and door-plate is driven to rotate synchronously, the output shaft
The other end is provided with axially mounted chamber, is fixed with positioned internal block in the inside of the axially mounted chamber, is set on the pedestal
There is axial the first locating piece for stretching into the axially mounted intracavitary, first locating piece is by turning round internal locating piece
It is dynamic to carry out being positioned such that refrigerator air door is positioned in open position or closed position.
It can be there are many location fit structure between positioned internal block and the first locating piece, it is preferable that the inside is fixed
Position block be fixed on axially mounted chamber bottom and axially installation cavity circumferencial direction be arranged arc block, described first
Locating piece is the axial bottom for stretching into axially mounted chamber and realizes the positioning pin of location fit with the arc block.
More structurally sound positioning is carried out for the rotation of end of door plate, is equipped with output shaft in the outside of the axially mounted chamber
The external locating piece of synchronous rotation is equipped with the second positioning for carrying out back rotation and being positioned to external locating piece on the pedestal
Part.
It can be there are many location fit structure between external locating piece and the second locating piece, it is preferable that the output gear
For sector, and the sector constitutes the external locating piece, and second locating piece is arcwall and set on first
The outside of locating piece, two end faces of the arcwall in a circumferential direction respectively by with the sector in a circumferential direction
Two end faces offset and realize location fit.
Compared with the prior art, the advantages of the present invention are as follows：The air door structure of the refrigerator in the side of door-plate by pacifying
The isolating pad that door-plate side is isolated dress with extraneous air duct, can effectively prevent freezing on door-plate without installing heater
Phenomenon, makes that the structure of air door is more simple, cost is lower, also, passes through the sealing in the installation of the door-plate other side and door-plate sealing
Pad makes door-plate have preferable leakproofness between doorframe under shutdown state.In addition, the positioning pin of the air door structure is from output
The distance of gear centre is closer, thus can reduce the torque that positioning pin is born, and prevents the connecting shaft of output gear and door-plate
There is phenomenon of rupture in position, and work is more reliable.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the perspective exploded view of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the door-plate of the embodiment of the present invention；
Fig. 4 is the assembling structure schematic diagram of the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the pedestal of the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of output gear of the embodiment of the present invention and output shaft；
Fig. 7 is the structural schematic diagram of output gear of the embodiment of the present invention and output shaft；
Fig. 8 is the structural schematic diagram of the refrigerator air door location structure of the embodiment of the present invention.
Specific implementation mode
Below in conjunction with attached drawing embodiment, present invention is further described in detail.
As shown in Figures 1 to 4, the air door structure of the refrigerator in the present embodiment includes pedestal 1, doorframe 2 and door-plate 3, door
Frame 2 is mounted on pedestal 1, and door-plate 3 is mounted on doorframe 2, forms ventilation opening 21 among doorframe 2, driving is equipped in pedestal 1
Mechanism, door-plate 3 are rotated by driving mechanism, and then open or close ventilation opening 21.
The side of door-plate 3 is equipped with isolating pad 4, and isolating pad 4 is used for the side of door-plate 3 and extraneous air duct being isolated, with
Avoid icing phenomenon occur in 3 side of door-plate.In the present embodiment, the side of door-plate 3 forms rectangular installation cavity 31, and isolation 4 is adopted
With rectangular cushion, the size of isolating pad 4 is adapted with the size of rectangular installation cavity 31, and when installation, isolating pad 4 is embedded in simultaneously fixed
In rectangular installation cavity 31.
Surrounding on doorframe 2 towards the side of door-plate 3 is provided with mounting groove 22, and mounting groove 22 is trapped among the surrounding of ventilation opening 21,
Gasket 5 is embedded and is fixed in mounting groove 22, and under shutdown state, door-plate 3 forms sealing cooperation with gasket 5.This reality
It applies in example, gasket 5 is cushion, and the periphery of door-plate 3 towards 5 side of gasket has the flange 32 extended to gasket direction,
Under shutdown state, flange 32 is pressed on gasket 5 and door-plate 3 is made to form sealing cooperation with gasket 5.
As shown in Fig. 5 to Fig. 8, the driving mechanism in the present embodiment includes driving gear 10 and is meshed with driving gear
Output gear 11, driving gear 10 are gear set, and output gear 11 is rotated by driving gear 10.In output gear 11
It is equipped with and is centrally and perpendicular to output gear set on output gear 11 with the integrally formed output shaft 6 of output gear, output shaft 6
11.One end of output shaft 6 passes through doorframe 2 and is fastened on door-plate 3, and output shaft 6 rotates that door-plate 3 is driven to rotate synchronously.
The other end of output shaft 6 is provided with axially mounted chamber 61, and positioned internal block is fixed in the inside of axially mounted chamber 61,
In the present embodiment, positioned internal block is the bottom for being fixed on axially mounted chamber 61 and the axially circumferencial direction setting of installation cavity
Arc block 7.Axial the first locating piece stretched into axially mounted chamber 61 is equipped on pedestal 1, the first locating piece passes through internal
The back rotation of coming of portion's locating piece be positioned such that refrigerator air door is positioned in open position or closed position, in the present embodiment,
First locating piece is the axial bottom for stretching into axially mounted chamber 61 and realizes the positioning pin 8 of location fit with arc block 7.
Positioning pin 8 coordinates and constitutes the positioned internal mechanism of air door with arc block 7, in this way, positioning pin 8 is matched with arc block 7
After conjunction, positioning pin 8 is closer with a distance from 11 center of output gear, to reduce the torque that positioning pin 8 is born, prevents output gear
The connecting shaft position phenomenon of rupture of wheel 11 and door-plate 3.
In addition, the external locating piece rotated synchronously with output shaft 6 is equipped in the outside of axially mounted chamber 61, on pedestal 1
Equipped with the second locating piece for carrying out back rotation and being positioned to external locating piece.In the present embodiment, output gear 11 is sector,
Sector constitutes external locating piece, and the second locating piece is arcwall 9 and the outside set on positioning pin 8, and arcwall 9 is in circumferencial direction
On two end faces realize location fit by offseting with two end faces of sector in a circumferential direction respectively.
Arcwall 9 matches and constitutes the external detent mechanism of air door with sector, in this way, internal detent mechanism can not
In the case of positioning, it can be positioned by the outside detent mechanism, keep the location structure of air door more reliable.
The foregoing is merely the preferred embodiment of the present invention, it is noted that for those of ordinary skills,
Under the premise of not departing from the principle of the present invention, a variety of remodeling or improvement can be carried out to the present invention, these are regarded as the present invention
Protection domain within.
Claims (7)
1. a kind of air door structure of refrigerator, including pedestal (1), doorframe (2) and door-plate (3), the doorframe (2) is mounted on pedestal
(1) on, the door-plate (3) is mounted on doorframe (2), and ventilation opening (21) is formed among doorframe (2), and the door-plate (3) is driving
Mechanism is rotated by and opens or closes the ventilation opening (21), and in the side of the door-plate (3), installation is used for door-plate
The isolating pad (4) that the side is isolated with extraneous air duct, it is characterised in that：Gasket is installed in the doorframe (2)
(5), the other side of the door-plate (3) compresses the gasket (5) under shutdown state, towards door on the doorframe (2)
The surrounding of plate (3) side is provided with mounting groove (22), and the mounting groove (22) is trapped among the surrounding of the ventilation opening (21), and described is close
Packing (5) is in frame shape and is embedded in the mounting groove (22), the door-plate (3) under shutdown state with the gasket
(5) sealing cooperation is formed；The driving mechanism includes the output gear for driving gear (10) and being meshed with driving gear
(11), it is equipped with the output shaft (6) that is rotated synchronously with output gear on the output gear (11), the one of the output shaft (6)
End is connected with the door-plate (3) and door-plate is driven to rotate synchronously, and the other end of the output shaft (6) is provided with axially mounted chamber
(61), it is fixed with positioned internal block in the inside of the axially mounted chamber (61), axial stretch into is equipped on the pedestal (1)
The first locating piece in the axially mounted chamber (61), first locating piece is by carrying out internal locating piece come back rotation
It is positioned such that refrigerator air door is positioned in open position or closed position.
2. the air door structure of refrigerator according to claim 1, it is characterised in that：It is molded in the side of the door-plate (3)
There is a rectangular installation cavity (31), the isolating pad (4) is compatible rectangular pad with the rectangular installation cavity (31), and isolating pad
(4) it is embedded in the rectangular installation cavity (31).
3. the air door structure of refrigerator according to claim 1, it is characterised in that：The door-plate (3) is towards gasket (5)
The periphery of side has the flange (32) extended to gasket direction, and under shutdown state, the flange (32) is pressed on institute
The door-plate (3) is set to form sealing cooperation with gasket (5) on the gasket (5) stated.
4. the air door structure of refrigerator according to claim 1, it is characterised in that：The isolating pad (4) and gasket
(5) it is cushion.
5. the air door structure of refrigerator according to claim 1, it is characterised in that：The positioned internal block is to fix
In the bottom of axially mounted chamber (61) and the axially arc block (7) of the circumferencial direction setting of installation cavity, described first is fixed
Position part is the axial bottom for stretching into axially mounted chamber (61) and realizes the positioning pin (8) of location fit with the arc block (7).
6. the air door structure of refrigerator according to claim 1, it is characterised in that：In the outer of the axially mounted chamber (61)
Portion is equipped with the external locating piece rotated synchronously with output shaft (6), is equipped on the pedestal (1) and is turned round to external locating piece
Dynamic the second locating piece positioned.
7. the air door structure of refrigerator according to claim 6, it is characterised in that：The output gear (11) is sector
Tooth, and the sector constitutes the external locating piece, second locating piece is arcwall (9) and is positioned set on first
The outside of part, two end faces of the arcwall (9) in a circumferential direction respectively by with the sector in a circumferential direction
Two end faces offset and realize location fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510458704.8A CN104990338B (en) | 2015-07-30 | 2015-07-30 | A kind of air door structure of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510458704.8A CN104990338B (en) | 2015-07-30 | 2015-07-30 | A kind of air door structure of refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104990338A CN104990338A (en) | 2015-10-21 |
| CN104990338B true CN104990338B (en) | 2018-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510458704.8A Active CN104990338B (en) | 2015-07-30 | 2015-07-30 | A kind of air door structure of refrigerator |
Country Status (1)
| Country | Link |
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| CN (1) | CN104990338B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091544A (en) * | 2016-06-21 | 2016-11-09 | 南京创维家用电器有限公司 | A kind of refrigerator air duct and refrigerator thereof |
| CN106091537A (en) * | 2016-06-21 | 2016-11-09 | 南京创维家用电器有限公司 | Refrigerator and discrete embedded air channel structure thereof |
| CN109869971A (en) * | 2017-12-04 | 2019-06-11 | 浙江三花智能控制股份有限公司 | A kind of throttle setting |
| CN113028715A (en) * | 2019-12-25 | 2021-06-25 | 浙江三花智能控制股份有限公司 | Air door device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101191689A (en) * | 2006-11-27 | 2008-06-04 | 松下电器产业株式会社 | Adjustment damper device |
| CN101975496A (en) * | 2010-10-11 | 2011-02-16 | 太平洋电子(昆山)有限公司 | Air door for refrigerator |
| CN102564010A (en) * | 2012-03-06 | 2012-07-11 | 镇江市松协电器有限公司 | Adjusting device for air door of refrigerator |
| CN205138033U (en) * | 2015-07-30 | 2016-04-06 | 宁波爱姆优东海精工电器有限公司 | Air door structure for refrigerator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9429351B2 (en) * | 2012-11-26 | 2016-08-30 | Whirlpool Corporation | Demand air door heater for refrigerator |
-
2015
- 2015-07-30 CN CN201510458704.8A patent/CN104990338B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101191689A (en) * | 2006-11-27 | 2008-06-04 | 松下电器产业株式会社 | Adjustment damper device |
| CN101975496A (en) * | 2010-10-11 | 2011-02-16 | 太平洋电子(昆山)有限公司 | Air door for refrigerator |
| CN102564010A (en) * | 2012-03-06 | 2012-07-11 | 镇江市松协电器有限公司 | Adjusting device for air door of refrigerator |
| CN205138033U (en) * | 2015-07-30 | 2016-04-06 | 宁波爱姆优东海精工电器有限公司 | Air door structure for refrigerator |
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| Publication number | Publication date |
|---|---|
| CN104990338A (en) | 2015-10-21 |
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