CN104990338A - Air door structure used for refrigerator - Google Patents
Air door structure used for refrigerator Download PDFInfo
- Publication number
- CN104990338A CN104990338A CN201510458704.8A CN201510458704A CN104990338A CN 104990338 A CN104990338 A CN 104990338A CN 201510458704 A CN201510458704 A CN 201510458704A CN 104990338 A CN104990338 A CN 104990338A
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- CN
- China
- Prior art keywords
- door
- plate
- installation cavity
- sealing gasket
- air door
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
Provided is an air door structure used for a refrigerator. The air door structure comprises a base, a door frame, and a door sheet. The door frame is installed on the base. The door sheet is installed on the door frame. The middle of the door frame forms a ventilation opening. The door sheet rotates to open or close the ventilation opening, driven by a driving mechanism. The air door structure is characterized in that a side of the door sheet is provided with an isolation pad which separates the side surface of the door sheet from an external air duct, the door frame is internally provided with a seal pad, and the other side of the door sheet compresses the seal pad in a closed door state. Through installing the isolation pad on a side of the door sheet, freezing phenomenon on the door sheet can be effectively prevented without installing a heater, so that the structure of the air door is simpler and cost is lower. After the other side of the door sheet is provided with the seal pad, the door sheet and the door frame have good sealing property under a closed door state. In addition, the air door structure can reduce torque positioning pins bear, prevent a connecting shaft position of an output gear and the door sheet from fracturing, and operation is more reliable.
Description
Technical field
The present invention relates to a kind of air door structure of refrigerator.
Background technology
Current refrigerator is divided into refrigerating chamber and refrigerating chamber two spaces usually, refrigerating chamber and refrigerating chamber separate with dividing plate each other, the fan room being provided with evaporimeter and being communicated with evaporimeter in the rear wall of refrigerator, the exhaust air flue be connected with fan room is provided with between freezer compartment of refrigerator with refrigerating chamber, exhaust air flue is communicated with refrigerating chamber with refrigerating chamber respectively after shunt, and the cold air through evaporator cools is directly blown in refrigerating chamber and refrigerating chamber by exhaust air flue by fan.In order to control refrigerating chamber and refrigerating chamber refrigeration, in the exhaust air flue before shunt, be provided with air door.Due to the temperature difference between exhaust air flue and refrigerating chamber, when refrigerating chamber stops refrigeration, the air that temperature in refrigerating chamber is relatively high can be back in exhaust air flue, the air of backflow is when damper positions runs into the lower cold air of temperature, easily in the back side frosting of air door, after the frosting of the air door back side, air door dyskinesia can be caused, affect the aperture of air door, thus easily produce gap after making air door closed, cause the cold air of refrigerating chamber to enter refrigerating chamber makes fresh-keeping food easily freezing always, and, air door can be made under serious conditions out of control, refrigerator can not be refrigeration chamber as requested, and then cause the control accuracy of refrigerator to decline.
Existing air door is generally provided with cushion on a side of door-plate, door-plate rotates and cushion and contact therewith is produced install composition surface to carry out opening and closing, this air door structure can cause and occur ice pearl phenomenon once in a while on door-plate, along with the increase of ice pearl, affect the running of air door and cause it to occur driving bad phenomenon, thus, for this air door structure, need to add heater on the another side of door-plate, carry out deicing process by the ice pearl on heater end of door plate.Although adopt the structure of heater can effectively prevent from door-plate occurring ice pearl phenomenon, adopt heater not only to make the structure of air door become complicated, and cost is higher.
In addition, now widely used is MOD, its type of drive adopts alternating current generator or stepper motor as power part, by a series of gear drive in centre, the rotary motion of motor is delivered to the rotary main shaft of air door door-plate the most at last, and then realizing closedown and the opening action of door-plate, the structure of this MOD can referenced patent number be " airing opening of refrigerator " disclosed in the Chinese utility model patent of ZL 02221030.X (Authorization Notice No. is CN 2549408 Y).In the gear transmission structure of existing air door, alignment pin is positioned at the outside of output gear, namely alignment pin is away from output gear center, due to alignment pin from output gear center more away from, output gear will be larger to its moment of torsion acted on, and along with the change of moment of torsion large, easily there is phenomenon of rupture in shaft portion output gear and door-plate inserting output gear, and then causes air door normally to work.In sum, need to be further improved existing refrigerator air door structure
Summary of the invention
First technical problem to be solved by this invention is for above-mentioned prior art present situation, provides a kind of structure the simple air door structure that also can prevent refrigerator door-plate occurring icing phenomenon.
The present invention, so second technical problem solved is for above-mentioned prior art present situation, provides a kind of can preventing door-plate to occur the moment of torsion that icing phenomenon can make alignment pin bear again is less, the air door structure of the more reliable refrigerator in location.
The present invention solves the technical scheme that above-mentioned first technical problem adopt: the air door structure of this refrigerator, comprise pedestal, doorframe and door-plate, described doorframe is arranged on pedestal, described door-plate is arranged on doorframe, ventilating opening is formed in the middle of doorframe, described door-plate rotates and opens or closes described ventilating opening under driving mechanism drives, it is characterized in that: install in the side of described door-plate and be used for the isolated isolating pad in this side of door-plate and extraneous air channel, in described doorframe, sealing gasket is installed, the opposite side of described door-plate presses down tight described sealing gasket in pass door state.
Isolation is lined with multiple mounting structure, and preferably, form square installation cavity in the side of described door-plate, described isolating pad is the square pad suitable with described direction installation cavity, and isolating pad is embedded in described square installation cavity.
Sealing gasket can have multiple mounting structure, preferably, described doorframe has mounting groove towards the surrounding of door-plate side, described mounting groove is trapped among the surrounding of described ventilating opening, described sealing gasket is shaped as frame and is embedded in described mounting groove, and described door-plate is formed with described sealing gasket and is sealed and matched under the door state of pass.
More reliable in order to make to seal between door-plate and sealing gasket, described door-plate has towards the periphery of sealing gasket side the flange extended to sealing gasket direction, under the door state of pass, described flange is pressed on and described sealing gasket makes described door-plate and sealing gasket be formed be sealed and matched.
Further preferably, described isolating pad and sealing gasket are cushion.
The present invention solves the technical scheme that above-mentioned second technical problem adopt: the output gear that the driving mechanism of this wind door of refrigerator structure comprises driven wheel and is meshed with driven wheel, described output gear is provided with the output shaft with output gear synchronous axial system, one end of described output shaft is connected with described door-plate and drives door-plate synchronous axial system, the other end of described output shaft has axial installation cavity, positioned internal block is fixed with in the inside of described axial installation cavity, described pedestal is provided with the first keeper axially stretched in described axial installation cavity, described first keeper is by positioning the back rotation of coming of inner locating piece and make refrigerator air door be positioned in open position or closed position.
Multiple location fit structure can be had between positioned internal block and the first keeper, preferably, described positioned internal block is be fixed on the bottom of axial installation cavity and the arc block of the axially circumferencial direction setting of installation cavity, and the first described keeper is axially stretch into the bottom of axial installation cavity and realize the alignment pin of location fit with this arc block.
In order to the rotation of end of door plate is located more reliably, be provided with the outside locating piece rotated with output shaft synchronous in the outside of described axial installation cavity, described pedestal be provided with the second keeper that back rotation positions is come to outside locating piece.
Multiple location fit structure can be had between outside locating piece and the second keeper, preferably, described output gear is sector, and the outside locating piece described in described sector formation, the second described keeper is arcwall and is located at the outside of the first keeper, and described arcwall two end faces in a circumferential direction realize location fit respectively by offseting with described sector two end faces in a circumferential direction.
Compared with prior art, the invention has the advantages that: the air door structure of this refrigerator is by installing the isolating pad of being isolated in door-plate side and extraneous air channel in the side of door-plate, just can effectively prevent from icing phenomenon appears in door-plate without the need to mounting heater, make that the structure of air door is more simple, cost is lower, and, by installing the sealing gasket sealed with door-plate at door-plate opposite side, make door-plate under the door state of pass and there is between doorframe good sealing.In addition, the alignment pin of this air door structure, from the close together at output gear center, thus can reduce the moment of torsion that alignment pin bears, and prevents the connecting axle position of output gear and door-plate from occurring phenomenon of rupture, works more reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation 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 representation of the door-plate of the embodiment of the present invention;
Fig. 4 is the assembly structure schematic diagram of the embodiment of the present invention;
Fig. 5 is the structural representation of the pedestal of the embodiment of the present invention;
Fig. 6 is the structural representation of embodiment of the present invention output gear and output shaft;
Fig. 7 is the structural representation of embodiment of the present invention output gear and output shaft;
Fig. 8 is the structural representation of the refrigerator air door location structure of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in Figures 1 to 4, the air door structure of the refrigerator in the present embodiment comprises pedestal 1, doorframe 2 and door-plate 3, doorframe 2 is arranged on pedestal 1, door-plate 3 is arranged on doorframe 2, ventilating opening 21 is formed in the middle of doorframe 2, in pedestal 1, be provided with driving mechanism, door-plate 3 rotates under driving mechanism drives, and then opens or closes ventilating opening 21.
The side of door-plate 3 is provided with isolating pad 4, isolating pad 4 be used for by the side of door-plate 3 and extraneous air channel isolated, to avoid occurring icing phenomenon in door-plate 3 side.In the present embodiment, the side of door-plate 3 forms square installation cavity 31, and isolation 4 adopts square cushion, the size of isolating pad 4 and the size of square installation cavity 31 suitable, during installation, isolating pad 4 embeds and is fixed in square installation cavity 31.
Doorframe 2 has mounting groove 22 towards the surrounding of the side of door-plate 3, and mounting groove 22 is trapped among the surrounding of ventilating opening 21, is embedded and is fixed with sealing gasket 5 in mounting groove 22, and under the door state of pass, door-plate 3 and sealing gasket 5 are formed and be sealed and matched.In the present embodiment, sealing gasket 5 is cushion, and door-plate 3 has the flange 32 extended to sealing gasket direction towards the periphery of sealing gasket 5 side, and under the door state of pass, flange 32 is pressed on and sealing gasket 5 makes door-plate 3 and sealing gasket 5 be formed be sealed and matched.
As shown in Fig. 5 to Fig. 8, the output gear 11 that the driving mechanism in the present embodiment comprises driven wheel 10 and is meshed with driven wheel, driven wheel 10 is gear train, and output gear 11 rotates under the driving of driven wheel 10.Output gear 11 is provided with the integrated output shaft 6 with output gear, output shaft 6 be located at output gear 11 center and perpendicular to output gear 11.One end of output shaft 6 is passed doorframe 2 and is fastened on door-plate 3, and output shaft 6 rotates and drives door-plate 3 synchronous axial system.
The other end of output shaft 6 has axial installation cavity 61, is fixed with positioned internal block in the inside of axial installation cavity 61, and in the present embodiment, positioned internal block is be fixed on the bottom of axial installation cavity 61 and the arc block 7 of the axially circumferencial direction setting of installation cavity.Pedestal 1 is provided with the first keeper axially stretched in axial installation cavity 61, first keeper is by positioning the back rotation of coming of inner locating piece and make refrigerator air door be positioned in open position or closed position, in the present embodiment, this first keeper is axially stretch into the bottom of axial installation cavity 61 and realize the alignment pin 8 of location fit with arc block 7.
Alignment pin 8 coordinates with arc block 7 and forms the positioned internal mechanism of air door, like this, after alignment pin 8 coordinates with arc block 7, alignment pin 8 is from the close together at output gear 11 center, thus the moment of torsion that reduction alignment pin 8 bears, prevent the connecting axle position phenomenon of rupture of output gear 11 and door-plate 3.
In addition, be provided with the outside locating piece with output shaft 6 synchronous axial system in the outside of axial installation cavity 61, pedestal 1 be provided with the second keeper that back rotation positions is come to outside locating piece.In the present embodiment, output gear 11 is sector, sector forms outside locating piece, and the second keeper is arcwall 9 and is located at the outside of alignment pin 8, and arcwall 9 two end faces in a circumferential direction realize location fit respectively by offseting with sector two end faces in a circumferential direction.
Arcwall 9 matches with sector and forms the outside detent mechanism of air door, like this, when positioned internal mechanism cannot locate, can be positioned, make the location structure of air door more reliable by this outside detent mechanism.
The foregoing is only the preferred embodiment of the present invention; it should be pointed out that for those of ordinary skills, do not departing under principle prerequisite of the present invention; can carry out multiple remodeling or improvement to the present invention, these are all regarded as within protection scope of the present invention.
Claims (9)
1. the air door structure of a refrigerator, comprise pedestal (1), doorframe (2) and door-plate (3), described doorframe (2) is arranged on pedestal (1), described door-plate (3) is arranged on doorframe (2), ventilating opening (21) is formed in the middle of doorframe (2), described door-plate (3) rotates and opens or closes described ventilating opening (21) under driving mechanism drives, it is characterized in that: install in the side of described door-plate (3) and be used for the isolated isolating pad (4) in this side of door-plate and extraneous air channel, in described doorframe (2), sealing gasket (5) is installed, the opposite side of described door-plate (3) presses down tight described sealing gasket (5) in pass door state.
2. the air door structure of refrigerator according to claim 1, it is characterized in that: form square installation cavity (31) in the side of described door-plate (3), described isolating pad (4) is the square pad suitable with described direction installation cavity (31), and isolating pad (4) is embedded in described square installation cavity (31).
3. the air door structure of refrigerator according to claim 1, it is characterized in that: on described doorframe (2), have mounting groove (22) towards the surrounding of door-plate (3) side, described mounting groove (22) is trapped among the surrounding of described ventilating opening (21), described sealing gasket (5) is in shaped as frame and be embedded in described mounting groove (22), and described door-plate (3) is formed with described sealing gasket (5) and is sealed and matched under the door state of pass.
4. the air door structure of refrigerator according to claim 3, it is characterized in that: described door-plate (3) has towards the periphery of sealing gasket (5) side the flange (32) extended to sealing gasket direction, under the door state of pass, it is upper and described door-plate (3) and sealing gasket (5) are formed be sealed and matched that described flange (32) is pressed on described sealing gasket (5).
5. the air door structure of refrigerator according to claim 1, is characterized in that: described isolating pad (4) and sealing gasket (5) are cushion.
6. the air door structure of the refrigerator according to claim arbitrary in claim 1 to 5, it is characterized in that: the output gear (11) that described driving mechanism comprises driven wheel (10) and is meshed with driven wheel, described output gear (11) is provided with and the output shaft of output gear synchronous axial system (6), one end of described output shaft (6) is connected with described door-plate (3) and drives door-plate synchronous axial system, the other end of described output shaft (6) has axial installation cavity (61), positioned internal block is fixed with in the inside of described axial installation cavity (61), described pedestal (1) is provided with the first keeper axially stretched in described axial installation cavity (61), described first keeper is by positioning the back rotation of coming of inner locating piece and make refrigerator air door be positioned in open position or closed position.
7. the air door structure of the refrigerator described in 6 is wanted according to right, it is characterized in that: described positioned internal block for be fixed on axial installation cavity (61) bottom and axially installation cavity circumferencial direction arrange arc block (7), the first described keeper be axis stretch into the bottom of axial installation cavity (61) and realize the alignment pin (8) of location fit with this arc block (7).
8. the air door structure of refrigerator according to claim 6, it is characterized in that: be provided with the outside locating piece with output shaft (6) synchronous axial system in the outside of described axial installation cavity (61), described pedestal (1) is provided with the second keeper that back rotation positions is come to outside locating piece.
9. the air door structure of refrigerator according to claim 8, it is characterized in that: described output gear (11) is sector, and the outside locating piece described in described sector formation, the second described keeper is arcwall (9) and is located at the outside of the first keeper, and described arcwall (9) two end faces in a circumferential direction realize location fit respectively by offseting with described sector two end faces in a circumferential direction.
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 true CN104990338A (en) | 2015-10-21 |
| CN104990338B 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 |
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| Country | Link |
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| CN (1) | CN104990338B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| CN111735256A (en) * | 2020-06-30 | 2020-10-02 | 惠而浦（中国）股份有限公司 | Refrigerator with ventilation device and control method thereof |
| 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 |
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| 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 |
| US20140144162A1 (en) * | 2012-11-26 | 2014-05-29 | Whirlpool Corporation | Demand air door heater for 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 |
-
2015
- 2015-07-30 CN CN201510458704.8A patent/CN104990338B/en active Active
Patent Citations (5)
| 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 |
| US20140144162A1 (en) * | 2012-11-26 | 2014-05-29 | Whirlpool Corporation | Demand air door heater for 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| CN111735256A (en) * | 2020-06-30 | 2020-10-02 | 惠而浦（中国）股份有限公司 | Refrigerator with ventilation device and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104990338B (en) | 2018-08-31 |
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