CN105627661A - Automatic door and drawer opening device used for refrigerator - Google Patents
Automatic door and drawer opening device used for refrigerator Download PDFInfo
- Publication number
- CN105627661A CN105627661A CN201610113962.7A CN201610113962A CN105627661A CN 105627661 A CN105627661 A CN 105627661A CN 201610113962 A CN201610113962 A CN 201610113962A CN 105627661 A CN105627661 A CN 105627661A
- Authority
- CN
- China
- Prior art keywords
- gear
- teeth
- push rod
- housing
- vernier switch
- 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.)
- Granted
Links
Classifications
-
- 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
- F25D11/00—Self-contained movable devices, e.g. domestic 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
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/028—Details
-
- 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
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
- F25D25/024—Slidable shelves
- F25D25/025—Drawers
-
- 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)
Abstract
The invention relates to an automatic door and drawer opening device used for a refrigerator. The automatic door and drawer opening device comprises a shell and an upper cover. A drive assembly, a push rod, a guide rail, a reset spring, a microswitch and a microswitch stirring rod are arranged in the shell. One end of the reset spring is connected to the shell, and the other end of the reset spring is connected to the push rod. A gear shaft of a tooth-missing gear is sleeved with the tail end of the microswitch stirring rod. An arc-shaped protrusion is arranged in the tail end of the microswitch stirring rod. An arc-shaped groove is formed in the upper end of the gear shaft of the tooth-missing gear. The start end face of the microswitch stirring rod abuts against the side face of an elastic piece of the microswitch. The automatic door and drawer opening device is reasonable in structural design, the installation space is saved, the process requirement is lowered, the production cost is reduced, and the work reliability and stability are improved; and the tooth-missing gear is arranged, when a door or drawer of the refrigerator is pushed open, the push rod ingeniously resets through the reset spring, and therefore the push rod does not need to be driven by a motor to reset, control is more flexible, intelligent and user-friendly, and noise generated when the device works is greatly reduced.
Description
Technical field
The invention belongs to automation appliance technical field, specifically refer to a kind of automatic enabling for refrigerator, open drawer.
Background technology
Nowadays, household appliances product to intelligent, hommization direction is developed is trend of the times, traditional manual opens and closes refrigerator door, the refrigerator of refrigerator drawer cannot satisfy the demands of consumers.
Along with the continuous progress of society and the development of science and technology, have the intelligent refrigerator automatically opening refrigerator door, refrigerator drawer on the market, owing to structure design is reasonable not, cause automatic enabling, to open drawer volume big, processing requirement height, production cost height, stable not when opening and closing refrigerator door, refrigerator drawer, noise is relatively big, inadequate hommization, intellectuality.
Summary of the invention
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of automatic enabling for refrigerator, open drawer, comprise housing and cover the upper cover being located on housing, it is provided with by driving the push rod in Component driver extended position and retraction housing in housing, and along the guide rail that push rod axis direction coordinates with push rod, described driving assembly comprises motor and wheel gearing, wheel gearing comprises turbine, reduction gear component and the teeth-missing gear that the worm screw being connected with motor is connected with worm meshing, reduction gear component is connected with worm gear and teeth-missing gear respectively, and push rod is provided with the tooth bar being connected with a joggle with teeth-missing gear;
Also being provided with return spring in described housing, return spring one end is connected on housing, and the other end is connected on push rod;
Vernier switch and vernier switch driving lever also it is provided with in described housing, the gear shaft that vernier switch driving lever end is set in teeth-missing gear is outside, it is provided with circular arc projection in the inside of vernier switch driving lever end, it is provided with in the gear shaft upper end of teeth-missing gear and the arc groove that circular arc projection is mated, the initial end face of vernier switch driving lever is butted on the side of vernier switch shell fragment, and vernier switch shell fragment can press microswitch push-button.
Preferably, above-mentioned return spring is positioned at the top of push rod, and setting parallel with push rod axis direction.
Preferably, above-mentioned vernier switch driving lever is provided with guide path, and in housing, the downward vertical of vernier switch driving lever is provided with tail rod, and tail rod upper end is stretched in guide path.
Preferably, the initiating terminal bearing of trend at housing inner push-rod is provided with projection, and the periphery at projection is provided with and falls the Jiao Quan that makes an uproar.
Preferably, above-mentioned reduction gear component comprises the 2nd gear that the first gear being coaxially connected with turbine is connected with the first gears meshing, and described 2nd number of gear teeth is greater than the first number of gear teeth.
Preferably, above-mentioned reduction gear component also comprises the 4th gear that the 3rd gear being coaxially connected with the 2nd gear is connected with the 3rd gears meshing, 4th gear is coaxially connected with teeth-missing gear, and the number of teeth of the 4th gear is greater than the number of teeth of the 3rd gear and teeth-missing gear respectively.
The present invention has following unusual effect:
Present configuration is reasonable in design, save and space is installed, reduce processing requirement and production cost, improve the reliability and stability of work, by arranging teeth-missing gear, when pushing refrigerator door or refrigerator drawer open, push rod is ingenious to be resetted by return spring, so driving push rod to reset without the need to machine operation, not only control more flexibly, more intelligent, more human nature, and greatly reduce the noise that device work produces.
Accompanying drawing explanation
Accompanying drawing 1 is that the present invention decomposes structural representation;
Accompanying drawing 2 be push rod of the present invention initially retract overlook working state structure schematic diagram;
Accompanying drawing 3 be push rod of the present invention stretch out overlook working state structure schematic diagram.
Embodiment
The present invention is explained in further detail below in conjunction with accompanying drawing and embodiment for the ease of it is understood by those skilled in the art that.
As shown in accompanying drawing 1��3, the present embodiment disclose automatic enabling, open drawer for automatically opening door body or the drawer of refrigerator, comprise housing 2 and cover the upper cover 1 being located on housing 2, in order to improve reliability, the stability of efficiency of assembling, intensity and assembling, upper cover 1 and housing 2 are connected by screw. It is provided with in housing 2 and drives assembly 3, push rod 4, guide rail 21, return spring 5, vernier switch 6 and vernier switch driving lever 7.
Wherein, the driving assembly 3 of this device comprises motor 31 and wheel gearing 32, guide rail 21 is arranged along push rod 4 axis direction, and coordinate with push rod 4, assembly 3 is driven to drive push rod 4 to move around on guide rail 21, make in push rod 4 stable ground extended position and retraction housing 2, it is to increase the moving stability of push rod 4. Turbine 322, reduction gear component and the teeth-missing gear 327 that wheel gearing 32 comprises the worm screw 321 being connected with motor 31 and worm screw 321 is connected with a joggle, reduction gear component is connected with worm gear 322 and teeth-missing gear 327 respectively, is provided with the tooth bar 41 being connected with a joggle with teeth-missing gear 327 on push rod 4.
Return spring 5 one end of this device is connected on housing 2, and the other end is connected on push rod 4; In order to facilitate movement and the reset of push rod, the top of push rod 4 is located at by return spring 5, and setting parallel with push rod 4 axis direction.
The gear shaft 328 that vernier switch driving lever 7 end of this device is set in teeth-missing gear 327 is outside, vernier switch driving lever 7 is provided with guide path 72, in housing 2, the downward vertical of vernier switch driving lever 7 is provided with tail rod 8, tail rod 8 upper end is stretched in guide path 72, and teeth-missing gear 327 does not rotate with gear shaft 328; It is provided with circular arc projection 71 in the inside of vernier switch driving lever 7 end, it is provided with in gear shaft 328 upper end of teeth-missing gear 327 and the arc groove 3280 that circular arc protruding 71 mates.
In order to reduce the rotating speed that motor 31 exports, improve the safety and stability of this automatic door opener, the 2nd gear the 324, two gear 324 number of teeth that reduction gear component also comprises the first gear 323 being coaxially connected with turbine 322 and the first gear 323 is connected with a joggle is greater than first gear 323 number of teeth.
In order to reduce the rotating speed that motor 31 exports further, improve the safety and stability of this automatic door opener further, the 4th gear 326 that reduction gear component also comprises the 3rd gear 325 being coaxially connected with the 2nd gear 324 and the 3rd gear 325 is connected with a joggle, 4th gear 326 is coaxially connected with teeth-missing gear 327, and the number of teeth of the 4th gear 326 is greater than the number of teeth of the 3rd gear 325 and teeth-missing gear 327 respectively.
In the present embodiment, vernier switch 6 is for regulating the input signal of motor 31, and then the travel direction of control push rod 4; The interior side of vernier switch 6 is provided with button 62 and shell fragment 61, and the initial end face of vernier switch driving lever 7 is butted on the side of vernier switch shell fragment 61.
When the present invention works, this refrigerator opens the door automatically, open drawer and it is in initial retracted mode, as shown in Figure 2, after motor 31 receives enabling or opens drawer signal, motor 31 starts rotation work, worm screw 321 is driven to rotate when motor 31 rotates, worm screw 321 drives turbine 322 to rotate, owing to turbine 322 is coaxially connected with the first gear 323, first gear 323 and turbine 322 rotating in same direction, first gear 323 drives the 2nd gear 324 to rotate, owing to the 3rd gear 325 is coaxially connected with the 2nd gear 324, 3rd gear 325 the 2nd gear 324 rotating in same direction, 3rd gear 325 drives the 4th gear 326 to rotate again, owing to teeth-missing gear 327 is coaxially connected with the 4th gear 326, gear shaft 328 drives teeth-missing gear 327 and the 4th gear 326 rotating in same direction simultaneously, teeth-missing gear 327 is in rotation process, vernier switch driving lever 7 initiating terminal contact vernier switch shell fragment 61, shell fragment 61 is pressed, the shell fragment 61 pressed extrudes the button 62 of vernier switch 6, then motor 31 keeps work, the tooth section of teeth-missing gear 327 then drives the tooth bar 41 on push rod 4 outwards to move, make push rod 4 stretch out housing 2 to complete to push away door or push away drawer action, push rod 4 draws high return spring 5, as shown in Figure 3.
After push rod 4 extended position puts in place, the arc groove 3280 of gear shaft 328 upper end just arrives protruding 71 positions of circular arc of vernier switch driving lever 7, under the driving of shell fragment 61 elastic force, and under the guide effect of guide path 72 and tail rod 8, shell fragment 61 drives vernier switch driving lever 7 to move, and makes circular arc projection 71 fall into arc groove 3280; After button 62 departs from shell fragment 61 pressing, motor 31 stops rotating, and in the middle part of the hypodontia section of teeth-missing gear 327, just move to top, teeth-missing gear 327 departs from completely with tooth bar 41 and engages, under return spring 5 its own resilient restitution, return spring 5 drives push rod 4 to move toward reverse direction and is retracted into starting position, as shown in Figure 2.
Stretching out and in retraction moving process, push rod 4 touches the noise that housing 2 sends to reduce push rod 4, initiating terminal bearing of trend at housing 2 inner push-rod 4 is provided with projection 22, periphery at projection 22 is provided with and falls glue circle 9 of making an uproar, and falls glue circle 9 of making an uproar and is made up of soft material. Thus push rod 4 is after retraction puts in place, falls glue circle 7 of making an uproar and first touch housing 2, thus greatly reduce noise.
The present invention is used for refrigerator and automatically opens the door, opens drawer reasonable in design, save and space is installed, reduce processing requirement and production cost, improve the reliability and stability of work, by arranging teeth-missing gear 327, when pushing refrigerator door or refrigerator drawer open, push rod 4 is ingenious to be resetted by return spring 5, so resetting without the need to motor 21 task driven push rod 4, not only control more flexibly, more intelligent, more human nature, and greatly reduce the noise that device work produces.
Above-described embodiment is the preferred version that the present invention realizes, and indefiniteness is exhaustive, and under same idea, the present invention can also have other variations. It should be noted that, under the prerequisite not departing from the present invention and inventing design, any apparent replacement is all within protection domain of the present invention.
Claims (6)
1. the automatic enabling for refrigerator, open drawer, comprise housing (2) and cover the upper cover (1) being located on housing, it is provided with by driving assembly (3) to drive the push rod (4) in extended position and retraction housing in housing, and the guide rail (21) coordinated with push rod along push rod axis direction, it is characterized in that: described driving assembly comprises motor (31) and wheel gearing (32), wheel gearing comprises the worm screw (321) being connected with motor, the turbine (322) being connected with worm meshing, reduction gear component and teeth-missing gear (327), reduction gear component is connected with worm gear and teeth-missing gear respectively, push rod is provided with the tooth bar (41) being connected with a joggle with teeth-missing gear,
Also being provided with return spring (5) in described housing, return spring one end is connected on housing, and the other end is connected on push rod;
Vernier switch (6) and vernier switch driving lever (7) also it is provided with in described housing, the gear shaft (328) that vernier switch driving lever end is set in teeth-missing gear is outside, it is provided with circular arc projection (71) in the inside of vernier switch driving lever end, it is provided with in the gear shaft upper end of teeth-missing gear and the arc groove (3280) that circular arc projection is mated, the initial end face of vernier switch driving lever is butted on the side of vernier switch shell fragment (61), and vernier switch shell fragment can press microswitch push-button (62).
2. the automatic enabling for refrigerator according to claim 1, open drawer, it is characterised in that: described return spring is positioned at the top of push rod, and setting parallel with push rod axis direction.
3. the automatic enabling for refrigerator according to claim 2, open drawer, it is characterized in that: described vernier switch driving lever is provided with guide path (72), in housing, the downward vertical of vernier switch driving lever is provided with tail rod (8), and tail rod upper end is stretched in guide path.
4. the automatic enabling for refrigerator according to any one of claim 1-3, open drawer, it is characterised in that: the initiating terminal bearing of trend at housing inner push-rod is provided with projection (22), and the periphery at projection is provided with and falls the Jiao Quan that makes an uproar (9).
5. the automatic enabling for refrigerator according to claim 4, open drawer, it is characterized in that: described reduction gear component comprises the 2nd gear (324) that the first gear (323) being coaxially connected with turbine is connected with the first gears meshing, and described 2nd number of gear teeth is greater than the first number of gear teeth.
6. the automatic enabling for refrigerator according to claim 5, open drawer, it is characterized in that: described reduction gear component also comprises the 4th gear (326) that the 3rd gear (325) being coaxially connected with the 2nd gear is connected with the 3rd gears meshing, 4th gear is coaxially connected with teeth-missing gear, and the number of teeth of the 4th gear is greater than the number of teeth of the 3rd gear and teeth-missing gear respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610113962.7A CN105627661B (en) | 2016-03-01 | 2016-03-01 | A kind of automatic door opening for refrigerator, open drawer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610113962.7A CN105627661B (en) | 2016-03-01 | 2016-03-01 | A kind of automatic door opening for refrigerator, open drawer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105627661A true CN105627661A (en) | 2016-06-01 |
| CN105627661B CN105627661B (en) | 2018-04-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610113962.7A Active CN105627661B (en) | 2016-03-01 | 2016-03-01 | A kind of automatic door opening for refrigerator, open drawer |
Country Status (1)
| Country | Link |
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| CN (1) | CN105627661B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018121571A1 (en) * | 2016-12-27 | 2018-07-05 | 青岛海尔股份有限公司 | Automatic door opening device and refrigerator with automatic door opening device |
| WO2018121575A1 (en) * | 2016-12-27 | 2018-07-05 | 青岛海尔股份有限公司 | Automatic door device and refrigerator having same |
| WO2018121570A1 (en) * | 2016-12-27 | 2018-07-05 | 青岛海尔股份有限公司 | Automatic door opening device and refrigerator having same |
| WO2018121576A1 (en) * | 2016-12-27 | 2018-07-05 | 青岛海尔股份有限公司 | Automatic door device and refrigerator having same |
| CN108427335A (en) * | 2018-04-28 | 2018-08-21 | 四川虹美智能科技有限公司 | A kind of control device of intelligent appliance, method and intelligent appliance |
| CN108573578A (en) * | 2017-08-24 | 2018-09-25 | 胡玥 | A kind of adjustable express delivery cabinet of parking space |
| CN108679914A (en) * | 2018-07-28 | 2018-10-19 | 长虹美菱股份有限公司 | A kind of hand automatic switch door for refrigerator |
| CN110584494A (en) * | 2019-09-29 | 2019-12-20 | 华帝股份有限公司 | Electric door and cooking equipment applying same |
| KR20200037532A (en) * | 2018-10-01 | 2020-04-09 | 삼성전자주식회사 | Refrigerator |
| CN111657683A (en) * | 2019-03-06 | 2020-09-15 | 宁波方太厨具有限公司 | Cabinet with water receiving device |
| WO2021208453A1 (en) * | 2020-04-14 | 2021-10-21 | 合肥华凌股份有限公司 | Refrigerator |
| CN113623933A (en) * | 2021-08-27 | 2021-11-09 | 江苏凯德电控科技有限公司 | Automatic push-open device with overload protection and refrigerator |
| US11326384B2 (en) * | 2019-02-19 | 2022-05-10 | Vestel Beyaz Esya Sanayi Ve Ticaret Anonim Sirketi | Automatic door opening system and a method thereof |
| CN115031486A (en) * | 2022-08-11 | 2022-09-09 | 合肥美的电冰箱有限公司 | Drawer assembly and refrigerator |
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| JP2002364712A (en) * | 2001-06-08 | 2002-12-18 | Matsushita Refrig Co Ltd | Gear mechanism, door opening device with the gear mechanism, and cabinet and refrigerator with the door opening device |
| CN202176160U (en) * | 2011-07-26 | 2012-03-28 | 海尔集团公司 | Boosting handle and refrigerating device |
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2016
- 2016-03-01 CN CN201610113962.7A patent/CN105627661B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002364712A (en) * | 2001-06-08 | 2002-12-18 | Matsushita Refrig Co Ltd | Gear mechanism, door opening device with the gear mechanism, and cabinet and refrigerator with the door opening device |
| CN202176160U (en) * | 2011-07-26 | 2012-03-28 | 海尔集团公司 | Boosting handle and refrigerating device |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018121571A1 (en) * | 2016-12-27 | 2018-07-05 | 青岛海尔股份有限公司 | Automatic door opening device and refrigerator with automatic door opening device |
| WO2018121575A1 (en) * | 2016-12-27 | 2018-07-05 | 青岛海尔股份有限公司 | Automatic door device and refrigerator having same |
| WO2018121570A1 (en) * | 2016-12-27 | 2018-07-05 | 青岛海尔股份有限公司 | Automatic door opening device and refrigerator having same |
| WO2018121576A1 (en) * | 2016-12-27 | 2018-07-05 | 青岛海尔股份有限公司 | Automatic door device and refrigerator having same |
| CN108573578B (en) * | 2017-08-24 | 2020-09-11 | 惠安畅悦工业产品设计有限公司 | Express cabinet with adjustable storage space |
| CN108573578A (en) * | 2017-08-24 | 2018-09-25 | 胡玥 | A kind of adjustable express delivery cabinet of parking space |
| CN108427335A (en) * | 2018-04-28 | 2018-08-21 | 四川虹美智能科技有限公司 | A kind of control device of intelligent appliance, method and intelligent appliance |
| CN108679914A (en) * | 2018-07-28 | 2018-10-19 | 长虹美菱股份有限公司 | A kind of hand automatic switch door for refrigerator |
| CN108679914B (en) * | 2018-07-28 | 2024-01-30 | 南京中竞科智能科技有限公司 | Manual automatic door opening and closing structure for refrigerator |
| KR20200037532A (en) * | 2018-10-01 | 2020-04-09 | 삼성전자주식회사 | Refrigerator |
| KR102607011B1 (en) | 2018-10-01 | 2023-11-29 | 삼성전자주식회사 | Refrigerator |
| EP3839390A4 (en) * | 2018-10-01 | 2021-11-03 | Samsung Electronics Co., Ltd. | Refrigerator |
| US11585593B2 (en) | 2018-10-01 | 2023-02-21 | Samsung Electronics Co., Ltd. | Refrigerator |
| US11326384B2 (en) * | 2019-02-19 | 2022-05-10 | Vestel Beyaz Esya Sanayi Ve Ticaret Anonim Sirketi | Automatic door opening system and a method thereof |
| CN111657683A (en) * | 2019-03-06 | 2020-09-15 | 宁波方太厨具有限公司 | Cabinet with water receiving device |
| CN110584494A (en) * | 2019-09-29 | 2019-12-20 | 华帝股份有限公司 | Electric door and cooking equipment applying same |
| WO2021208453A1 (en) * | 2020-04-14 | 2021-10-21 | 合肥华凌股份有限公司 | Refrigerator |
| CN113623933A (en) * | 2021-08-27 | 2021-11-09 | 江苏凯德电控科技有限公司 | Automatic push-open device with overload protection and refrigerator |
| CN115031486A (en) * | 2022-08-11 | 2022-09-09 | 合肥美的电冰箱有限公司 | Drawer assembly and refrigerator |
| CN115031486B (en) * | 2022-08-11 | 2022-11-08 | 合肥美的电冰箱有限公司 | Drawer assembly and refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105627661B (en) | 2018-04-03 |
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Effective date of registration: 20190619 Address after: 516255 No. 24 Xinlian East Road, Shuikou Street Office, Huicheng District, Huizhou City, Guangdong Province Patentee after: Tongda science and Technology (Huizhou) Co., Ltd. Address before: 516005 Huida Industrial Center, Longhu Development Zone, Huicheng District, Huizhou City, Guangdong Province Patentee before: Tongda Electromechanical industry (Huizhou) Co., Ltd. |
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