CN111335770A - Door opening and closing device and refrigerator applying same - Google Patents
Door opening and closing device and refrigerator applying same Download PDFInfo
- Publication number
- CN111335770A CN111335770A CN202010162620.0A CN202010162620A CN111335770A CN 111335770 A CN111335770 A CN 111335770A CN 202010162620 A CN202010162620 A CN 202010162620A CN 111335770 A CN111335770 A CN 111335770A
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- Prior art keywords
- refrigerator
- sliding block
- door
- hole
- rod
- 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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- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000003993 interaction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
- E05F15/63—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by swinging arms
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F17/00—Special devices for shifting a plurality of wings operated simultaneously
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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
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/028—Details
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
- E05F15/63—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by swinging arms
- E05F2015/631—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by swinging arms the end of the arm sliding in a track; Slider arms therefor
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
- E05Y2201/214—Disengaging means
- E05Y2201/216—Clutches
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
- E05Y2900/31—Application of doors, windows, wings or fittings thereof for domestic appliances for refrigerators
-
- 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
- F25D2323/00—General constructional features not provided for in other groups of this subclass
- F25D2323/02—Details of doors or covers not otherwise covered
Landscapes
- 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)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention discloses a door opening and closing device and a refrigerator applying the same, and relates to the technical field of refrigerators. The invention comprises a box body, wherein a door body is arranged at an opening of a cavity of the box body through a hinge; one side of the door body is provided with a transmission mechanism, and the transmission mechanism comprises a motor, a screw rod, a bearing seat, a clutch, a sliding block, a driving block, a guide rod and a fixed seat; two ends of the screw rod are respectively and rotatably arranged on the bearing block and the driving block, and the motor is in transmission connection with the input end of the clutch through an output shaft; two fixed seats are fixed on one side of the screw rod, a guide rod is arranged between the two fixed seats, a sliding block is arranged on the guide rod in a sliding manner, and one side surface of the sliding block is in contact with one side surface of the driving block; the slide block is connected with the door body through a connecting rod. The manual opening and automatic opening can be realized through the matching of the installed driving block and the sliding block, and different use requirements are met.
Description
Technical Field
The invention belongs to the technical field of refrigerators, and particularly relates to a door opening and closing device and a refrigerator applying the same.
Background
The refrigerator is a refrigerating device for keeping constant low temperature, and is a civil product for keeping food or other articles in a constant low-temperature cold state. The refrigerator body is internally provided with a cabinet or a box frozen by a compressor and an ice maker and a storage box with a refrigerating device. In the daily use process, after articles are taken again, the door of the refrigerator is often forgotten to be closed, or the door of the refrigerator is not tightly closed, so that the storage of the articles in the refrigerator is influenced.
In the current market, most of refrigerators still open and close the door in a manual mode, and when a user holds articles by hands, the operation is very inconvenient. Some household electrical appliances manufacturers have released refrigerators that can be opened semi-automatically by touch, human body induction, voice, key and other modes, but the doors of these refrigerators cannot be opened to a required angle automatically, and have no automatic door closing function, so that the user experience is not good. The existing automatic door opening and closing scheme is mostly used in a multi-module matching mode, the cost is expensive, and the wide application is difficult to achieve.
Disclosure of Invention
The invention aims to provide a door opening and closing device and a refrigerator applying the same, which can be manually opened and automatically opened through the matching of an installed driving block and a sliding block, meet different use requirements and solve the related problems in the background art.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a door opening and closing device and a refrigerator applying the same, wherein the door opening and closing device comprises a box body, wherein a door body is arranged at an opening of a cavity of the box body through a hinge; a transmission mechanism is arranged on one side of the door body and comprises a motor, a screw rod, a bearing seat, a clutch, a sliding block, a driving block, a guide rod and a fixed seat; two ends of the screw rod are respectively and rotatably arranged on the bearing block and the driving block, and the motor is in transmission connection with the input end of the clutch through an output shaft; two fixed seats are fixed on one side of the screw rod, a guide rod is arranged between the two fixed seats, a sliding block is arranged on the guide rod in a sliding mode, and one side face of the sliding block is in contact with one side face of the driving block; the sliding block is connected with the door body through a connecting rod.
Furthermore, the connecting rod is a curved rod body, one end of the connecting rod is provided with a first through hole, and the other end of the connecting rod is provided with a second through hole.
Furthermore, the end parts of the two opposite side surfaces of the door body are provided with rotating shaft holes for hinging, one side of each rotating shaft hole is provided with a fixing column, and the fixing columns are installed in a matched mode with the through holes formed in the connecting rods.
Furthermore, the middle of the sliding block is provided with a guide hole matched with the guide rod, a groove body is formed at the corner of one side of the spiral guide hole, and a cylinder which is matched with the through hole II formed in the connecting rod is arranged in the groove body.
Further, the cross section of the guide hole is polygonal or elliptical.
Furthermore, a screw hole matched with the screw rod penetrates through one side of the driving block, the driving block is an electromagnet, and the side face where the sucking disc is located can be in contact with the side face of the sliding block.
Further, the driving block and the sliding block can be bonded or separated.
Furthermore, the number of the door bodies arranged on the box body is the same as that of the transmission mechanisms.
Compared with the prior art, the invention provides a door opening and closing device and a refrigerator using the same, which have the following beneficial effects:
1. the invention completes the opening and closing of the refrigerator door body through the transmission mechanism arranged on the refrigerator, and reduces the problem that articles stored in the refrigerator deteriorate because the refrigerator door is forgotten to be closed or is not tightly closed.
2. The transmission mechanism is simple in structure and convenient to install, and meanwhile, the screw rod drives the sliding block to move, so that the opening angle of the refrigerator door body is convenient to control.
3. The driving block and the sliding block are matched, so that manual opening and automatic opening can be realized, and different use requirements are met.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, 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 according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall closing configuration of the double door of the present invention;
FIG. 2 is a schematic view of the overall opening structure of the double door of the present invention;
FIG. 3 is a schematic view of the door body structure of the present invention;
FIG. 4 is a schematic view of the motor structure of the present invention;
FIG. 5 is a schematic view of a slider structure according to the present invention;
FIG. 6 is a schematic view of a connecting rod structure according to the present invention;
FIG. 7 is a schematic diagram of a driving block according to the present invention;
FIG. 8 is a schematic view of the overall closing structure of the single-door of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-box body, 2-door body, 201-rotating shaft hole, 202-fixing, 3-motor, 301-output shaft, 4-screw rod, 5-bearing seat, 6-clutch, 7-sliding block, 701-guide hole, 702-groove body, 703-cylinder, 8-connecting rod, 801-through hole I, 802-through hole II, 9-driving block, 901-screw hole, 10-guide rod and 11-fixing seat.
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 "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
The first embodiment is as follows:
referring to fig. 1-2, the present invention relates to a door opening and closing device and a refrigerator using the same, including a box body 1, two door bodies 2 are oppositely installed at an opening of a cavity of the box body 1 through a hinge; the number of the door bodies 2 arranged on the box body 1 is the same as that of the transmission mechanisms;
referring to fig. 3-4, a transmission mechanism is installed at one side of the door body 2, and the transmission mechanism includes a motor 3, a screw rod 4, a bearing seat 5, a clutch 6, a slider 7, a driving block 9, a guide rod 10 and a fixing seat 11;
two ends of the screw rod 4 are respectively and rotatably arranged on the bearing block 5 and the driving block 9, and the motor 3 is in transmission connection with the input end of the clutch 6 through an output shaft 301; two fixed seats 11 are fixed on one side of the screw rod 4, a guide rod 10 is installed between the two fixed seats 11, a sliding block 7 is installed on the guide rod 10 in a sliding mode, one side face of the sliding block 7 is in contact with one side face of a driving block 9, a screw hole 901 matched with the screw rod 4 penetrates through one side of the driving block 9, the driving block 9 is an electromagnet, the side face where a sucking disc is located can be in contact with the side face of the sliding block 7, and the driving block 9 and the sliding block 7 can be bonded or separated;
the motor 3 adopts a double-shaft motor;
referring to fig. 5, a guide hole 701 matched with the guide rod 10 is formed in the middle of the sliding block 7, a groove body 702 is formed at a corner at one side of the guide hole 701, a cylinder 703 matched with a through hole II 802 formed in the connecting rod 8 is arranged in the groove body 702, and the cross section of the guide hole 701 is polygonal or oval to prevent the sliding block 7 from turning over in the interaction process;
referring to fig. 6-7, the slider 7 is connected to the door 2 through the connecting rod 8, the connecting rod 8 is a curved rod, one end of the connecting rod 8 is provided with a first through hole 801, the other end of the connecting rod 8 is provided with a second through hole 802, the ends of two opposite side surfaces of the door 2 are provided with rotating shaft holes 201, the rotating shaft holes 201 are installed in cooperation with a hinged rotating shaft installed on the box body 1, one side of the rotating shaft hole 201 is provided with a fixing column 202, and the fixing column 202 is installed in cooperation with the first through hole 801 installed on the connecting rod 8.
When the door needs to be opened automatically, the electromagnet of the driving block 9 is electrified and adsorbed on the sliding block 7, the motor 3 rotates towards one direction, the two symmetrically-installed screw rods 4 can be driven to rotate simultaneously, the threads on the other two screw rods 4 are arranged in opposite directions, and therefore the two driving blocks 9 are driven to drive the sliding block 7 to move towards two sides, the two connecting rods 8 are driven to drive the two door bodies on the two sides to rotate respectively, and the door bodies are opened.
When the door needs to be automatically closed, the electromagnets of the driving blocks 9 are electrified and adsorbed on the sliding blocks 7, the motor 3 rotates towards the other direction, and the two screw rods 4 can be driven to rotate at the same time, so that the two driving blocks 9 are driven to drive the sliding blocks 7 to move towards the middle, the two connecting rods 8 are driven to drive the door bodies on the two sides to rotate respectively, and the door bodies are closed.
When only the left door body 2 needs to be opened and closed, the left clutch 6 keeps connected, the right clutch 6 is disconnected, and the motor 3 only drives the left screw rod 4 to rotate when rotating.
When only the right door body 2 needs to be opened and closed, the right clutch 6 keeps connected, the left clutch 6 is disconnected, and the motor 3 only drives the right screw rod 4 to rotate when rotating.
When the door is opened and closed only by hand, the electromagnet of the driving block 9 is powered off, the driving block 9 is disconnected from the sliding block 7, and the sliding block 7 can freely slide along the guide rod 10 when the door body is opened and closed.
Example two:
referring to fig. 1-2, the invention relates to a door opening and closing device and a refrigerator using the same, comprising a box body 1, wherein a single door body 2 is arranged at an opening of a cavity of the box body 1 through a hinge; a group of transmission mechanisms are arranged on the box body 1;
referring to fig. 3-4, a transmission mechanism is installed at one side of the door body 2, and the transmission mechanism includes a motor 3, a screw rod 4, a bearing seat 5, a clutch 6, a slider 7, a driving block 9, a guide rod 10 and a fixing seat 11;
two ends of the screw rod 4 are respectively and rotatably arranged on the bearing block 5 and the driving block 9, and the motor 3 is in transmission connection with the input end of the clutch 6 through an output shaft 301; two fixed seats 11 are fixed on one side of the screw rod 4, a guide rod 10 is installed between the two fixed seats 11, a sliding block 7 is installed on the guide rod 10 in a sliding mode, one side face of the sliding block 7 is in contact with one side face of a driving block 9, a screw hole 901 matched with the screw rod 4 penetrates through one side of the driving block 9, the driving block 9 is an electromagnet, the side face where a sucking disc is located can be in contact with the side face of the sliding block 7, and the driving block 9 and the sliding block 7 can be bonded or separated;
the motor 3 adopts a single motor;
referring to fig. 5, a guide hole 701 matched with the guide rod 10 is formed in the middle of the sliding block 7, a groove body 702 is formed at a corner at one side of the guide hole 701, a cylinder 703 matched with a through hole II 802 formed in the connecting rod 8 is arranged in the groove body 702, and the cross section of the guide hole 701 is polygonal or oval to prevent the sliding block 7 from turning over in the interaction process;
referring to fig. 6-7, the slider 7 is connected to the door 2 through the connecting rod 8, the connecting rod 8 is a curved rod, one end of the connecting rod 8 is provided with a first through hole 801, the other end of the connecting rod 8 is provided with a second through hole 802, the ends of two opposite side surfaces of the door 2 are provided with rotating shaft holes 201, the rotating shaft holes 201 are installed in cooperation with a hinged rotating shaft installed on the box body 1, one side of the rotating shaft hole 201 is provided with a fixing column 202, and the fixing column 202 is installed in cooperation with the first through hole 801 installed on the connecting rod 8.
When the door needs to be opened automatically, the electromagnet of the driving block 9 is electrified and adsorbed on the sliding block 7, the motor 3 rotates towards one direction and can drive the screw rod 4 to rotate, so that the driving block 9 is pushed to drive the sliding block 7 to move towards one side, the connecting rod 8 is driven to push the door body 2 to rotate, and the door body 2 is opened.
When the door needs to be automatically closed, the electromagnet of the driving block 9 is electrified and adsorbed on the sliding block 7, the motor 3 rotates towards the other direction and can simultaneously drive the screw rod 4 to rotate, so that the driving block 9 is pushed to drive the sliding block 7 to move towards the other side, the connecting rod 8 is driven, the door body 2 rotates, and the door body 2 is closed.
When the door is opened and closed only by hand, the electromagnet of the driving block 9 is powered off, the driving block 9 is disconnected from the sliding block 7, and the sliding block 7 can freely slide along the guide rod 10 when the door body is opened and closed.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides an open and close door gear and use its refrigerator, includes box (1), its characterized in that:
a door body (2) is arranged at an opening of the cavity of the box body (1) through a hinge;
a transmission mechanism is arranged on one side of the door body (2), and comprises a motor (3), a screw rod (4), a bearing seat (5), a clutch (6), a sliding block (7), a driving block (9), a guide rod (10) and a fixed seat (11);
two ends of the screw rod (4) are respectively rotatably arranged on the bearing block (5) and the clutch (6), meanwhile, a driving block (9) is arranged on the screw rod (4) in a matching way, and the motor (3) is in transmission connection with the input end of the clutch (6) through an output shaft (301); two fixed seats (11) are fixed on one side of the screw rod (4), a guide rod (10) is installed between the two fixed seats (11), a sliding block (7) is installed on the guide rod (10) in a sliding mode, and one side face of the sliding block (7) is in contact with one side face of the driving block (9);
the sliding block (7) is connected with the door body (2) through a connecting rod (8).
2. The door opening and closing device and the refrigerator using the same as claimed in claim 1, wherein the connecting rod (8) is a curved rod, one end of the connecting rod (8) is provided with a first through hole (801), and the other end of the connecting rod (8) is provided with a second through hole (802).
3. The door opening and closing device and the refrigerator using the same as claimed in claim 1, wherein the end portions of two opposite side surfaces of the door body (2) are provided with rotating shaft holes (201) for hinging, one side of each rotating shaft hole (201) is provided with a fixed column (202), and the fixed column (202) is installed in a matching way with a first through hole (801) formed in the connecting rod (8).
4. The door opening and closing device and the refrigerator using the same as claimed in claim 1, wherein a guide hole (701) matched with the guide rod (10) is formed in the middle of the sliding block (7), a groove body (702) is formed at a corner at one side of the screw guide hole (701), and a cylinder (703) matched with a through hole II (802) formed in the connecting rod (8) and installed is arranged in the groove body (702).
5. The door opening and closing device and the refrigerator using the same as claimed in claim 4, wherein the cross section of the guide hole (701) is polygonal or elliptical.
6. The door opening and closing device and the refrigerator using the same as claimed in claim 1, wherein a screw hole (901) matched with the screw rod (4) penetrates through one side of the driving block (9), the driving block (9) is an electromagnet, and the side where the sucking disc is located can be contacted with the side of the sliding block (7).
7. The door opening and closing device and the refrigerator using the same as claimed in claim 1 or 6, wherein the driving block (9) and the sliding block (7) can be bonded or separated.
8. The door opening and closing device and the refrigerator using the same as claimed in claim 1, wherein the number of the door bodies (2) mounted on the refrigerator body (1) is the same as that of the transmission mechanisms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010162620.0A CN111335770A (en) | 2020-03-10 | 2020-03-10 | Door opening and closing device and refrigerator applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010162620.0A CN111335770A (en) | 2020-03-10 | 2020-03-10 | Door opening and closing device and refrigerator applying same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111335770A true CN111335770A (en) | 2020-06-26 |
Family
ID=71178321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010162620.0A Pending CN111335770A (en) | 2020-03-10 | 2020-03-10 | Door opening and closing device and refrigerator applying same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111335770A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302471A (en) * | 2020-11-27 | 2021-02-02 | 杭州泰初门窗有限公司 | Temperature adjusting window capable of automatically adjusting indoor temperature |
| WO2023124714A1 (en) * | 2021-12-30 | 2023-07-06 | 广东美的制冷设备有限公司 | Door opening and closing device, and electrical appliance |
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| CN2249802Y (en) * | 1996-01-15 | 1997-03-19 | 龚光明 | Automatic mechanism of windows |
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| WO2023124714A1 (en) * | 2021-12-30 | 2023-07-06 | 广东美的制冷设备有限公司 | Door opening and closing device, and electrical appliance |
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Application publication date: 20200626 |