CN204677037U - Automatic door operator and there is the refrigerator of this device - Google Patents
Automatic door operator and there is the refrigerator of this device Download PDFInfo
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- CN204677037U CN204677037U CN201520304055.1U CN201520304055U CN204677037U CN 204677037 U CN204677037 U CN 204677037U CN 201520304055 U CN201520304055 U CN 201520304055U CN 204677037 U CN204677037 U CN 204677037U
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- tooth bar
- gear
- rounded partial
- push rod
- partial gear
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Abstract
The utility model discloses a kind of automatic door operator and there is the refrigerator of this device, comprise pedestal, be fixed in pedestal for connect drive source component and not rounded partial gear-tooth bar executing agency transmission mechanism, two for promoting the not rounded partial gear-tooth bar executing agency of a body, above-mentioned not rounded partial gear-tooth bar executing agency is arranged in pedestal, comprises the tooth bar push rod promoting door body, the not rounded partial gear engaged with tooth bar push rod; When two door bodies are in closure state, the grinding tooth of described tooth bar push rod does not engage with not rounded partial gear; When one of them body needs to open, drive source member drives transmission mechanism rotates, thus drives not rounded partial gear to rotate, and not rounded partial gear engages with the grinding tooth of tooth bar push rod, and tooth bar push rod is stretched out from pedestal, promotes door body and opens.The utility model has the advantage of that size is less, vibration & noise is less, long service life, reliability is high.
Description
Technical field
The utility model belongs to refrigerator field, is specifically related to a kind of automatic door operator and has the refrigerator of this device.
Background technology
Medium-to-high grade refrigerator is relatively large in the market, and the door seal suction of door body wherein, the weight of its load and door body or drawer-type door body is comparatively large, and increasing user feedback refrigerator door is not easily opened.
Generally opening of refrigerator doors is divided into three phases.First stage mainly overcomes the power such as door seal suction, the tight power of automatic closing lock, inertia force and door body hinge frictional force, and this one-phase needs the power that overcomes maximum; Second stage mainly overcomes the power such as the coupling mechanism force of automatically closing and hinge frictional force; Phase III needs overcome the power such as a frictional force of body hinge, and this one-phase needs the power that overcomes minimum.User is in the process of opening the door, and the dynamics just started needed for opening door body is maximum, if firmly excessive, refrigerator is opened too quickly, is even pulled out forward by refrigerator, if firmly too little, refrigerator doors cannot be opened.The motor drive mechanism of mainly part unlatching in the market, namely door body is reached second stage, the phase III also needs user's manual unlocking.If after whole door opening process is all taken into account, can be very high to the requirement of drive motors, drive motors is on the market difficult to meet so high requirement at present, even if can meet, cost is also very high.
No. CN100559101Cth, Chinese utility model patent notice of authorization discloses a kind of refrigerator, there is the difference of the power considering three phases in opening procedure, its drive unit comprises the junction plate 16 of driving mechanism 15 and opening and closing together with drawer, driving mechanism 15 comprises the swivel plate 19 rotated around driving shaft 18, swivel plate 19 possesses multiple drive pin 20a, 20b, 20c as drive transmission part, and drive pin 20a, 20b, 20c are according to coordinating with junction plate 16 respectively from the mutual different configuration of the distance of driving shaft 18.But this structure also reckons without the impact of the factor such as velocity variations, opening time in drawer opening procedure.And in drawer opening process, drive pin 20a, 20b, 20c need successively to contact with junction plate 16 respectively, there is discontinuous situation, cause drawer opening process not mild in engagement process.
Chinese utility model patent notice of authorization No. CN104329886A refrigerator disclosing a kind of automatic door operator and there is this device, this device is by the power of drive source component 2, driver plate 45 is passed to by transmission body 4, tooth on driver plate 45 engages with the tooth bar on impeller 3, impeller 3 promotes door body, is opened by door body.Its transmission body 4 comprises the travelling gear 41 engaged with output gear 24, the conjugate tooth group be equipped with travelling gear 41, the driver plate 45 of output that is arranged on conjugate tooth group.Conjugate tooth group is two non-circular gears 42 and 43, and wherein non-circular gear 43 and driver plate 45 are coaxially arranged.Although under the effect of conjugate tooth group, driver plate 45 can with continually varying rotational speed, and impeller 3 promotes door body with continually varying speed, saves opening time.But driver plate and non-circular gear 43 are coaxially arranged, when it rotates under the speed changed, comparatively large on the robust motion impact of whole device, vibration & noise is more serious.Tooth on driver plate 45 engages with the tooth bar of each impeller 3, and on driver plate 45, the engagement number of times of tooth is more, and the life-span is relatively short.In addition, because driver plate 45 only has one, when it damages, two door bodies of refrigerator all cannot normally be opened, and affect the use of user.
Summary of the invention
The purpose of this utility model there are provided a kind of automatic door operator and has the refrigerator of this device, solves the problem that the heavier refrigerator open of door body is comparatively required great effort.
The technical solution realizing the utility model object is: a kind of automatic door operator, comprises
Pedestal;
Be fixed on the drive source component in pedestal;
Two for promoting the not rounded partial gear-tooth bar executing agency of a body: above-mentioned not rounded partial gear-tooth bar executing agency is arranged in pedestal, comprise the tooth bar push rod promoting door body, the not rounded partial gear engaged with tooth bar push rod, the sidewall that two tooth bar push rods are relative is respectively equipped with grinding tooth, and tooth bar push rod is engaged with not rounded partial gear by grinding tooth;
For connecting the transmission mechanism of drive source component and not rounded partial gear-tooth bar executing agency: when two door bodies are in closure state, the grinding tooth of described tooth bar push rod does not engage with not rounded partial gear; When one of them body needs to open, drive source member drives transmission mechanism rotates, thus drives not rounded partial gear to rotate, and engages with the grinding tooth of tooth bar push rod, and tooth bar push rod is stretched out from pedestal, promotes door body and opens.
Above-mentioned not rounded partial gear is fan-shaped eccentric gear.
Said base is box body shape, and any one side two ends of pedestal have the first opening and the second opening, and the tooth bar push rod of two not rounded partial gear-tooth bar executing agencies stretches out respectively from the first opening and the second opening.
Above-mentioned transmission mechanism is no less than 1 gear.
When above-mentioned transmission mechanism is only a gear, the worm engaging of the output of gear and drive source component, gear is coaxial with two not rounded partial gears, and between two not rounded partial gears.
Above-mentioned transmission mechanism comprise two and to cog time, be positioned at the worm engaging of the gear of transmission mechanism input and the output of drive source component, the gear being positioned at transmission mechanism output is coaxial with two not rounded partial gears, and between two not rounded partial gears.
A kind of refrigerator, comprise there is a room casing, be arranged on the drawer on casing and open or close the door body of compartment door, described refrigerator is provided with the above-mentioned automatic door operator opening described drawer or door body.
The utility model compared with prior art, its remarkable advantage: (1) by not rounded partial gear-tooth bar executing agency by comparatively constant input speed, rotating speed is converted into continually varying speed and the power of tooth bar push rod, solve the contradictory problems of input source power and opening speed and opening speed and power in whole door body opening procedure, the input source of lower-wattage can be used, overcome the resistance of different phase change, ensure the continuous uniform of door body opening process medium velocity change.
(2) power of input source is less, and the size of motor used is less, therefore overall dimensions is less, alleviates the overall weight of refrigerator.
(3) gearratio of transmission mechanism is constant, and the stationarity of device motion is higher, and vibration & noise is less.
(4) two groups of not rounded partial gear tooth bar-executing agencies are adopted, therefore long service life, reliability is high.
Accompanying drawing explanation
Fig. 1 is the overall schematic of automatic door operator of the present utility model.
Fig. 2 is the 3 D stereo decomposing schematic representation of automatic door operator of the present utility model.
Fig. 3 is the partial schematic diagram of the not rounded partial gear of automatic door operator of the present utility model.
Fig. 4 is the tooth bar pusher structure schematic diagram of automatic door operator of the present utility model.
Fig. 5 is the part-structure schematic diagram with the refrigerator of automatic door operator of the present utility model.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
A kind of automatic door operator, comprises
Pedestal 100;
Be fixed on the drive source component 200 in pedestal 100;
Two for promoting the not rounded partial gear-tooth bar executing agency 400 of a body: above-mentioned not rounded partial gear-tooth bar executing agency 400 is arranged in pedestal 100, comprise the tooth bar push rod 28 promoting door body, the not rounded partial gear 15 engaged with tooth bar push rod 28, the sidewall that two tooth bar push rods 28 are relative is respectively equipped with grinding tooth, and tooth bar push rod 28 is engaged with not rounded partial gear 15 by grinding tooth;
For connecting the transmission mechanism 300 of drive source component 200 and not rounded partial gear-tooth bar executing agency 400: when two door bodies are in closure state, the grinding tooth of described tooth bar push rod 28 does not engage with not rounded partial gear 15; When one of them body needs to open, drive source component 200 drive transmission device 300 rotates, thus drives not rounded partial gear 15 to rotate, and engages with the grinding tooth of tooth bar push rod 28, and tooth bar push rod 28 is stretched out from pedestal 100, promotes door body and opens.
Above-mentioned not rounded partial gear 15 is fan-shaped eccentric gear.
Said base 100 is in box body shape, and the tooth bar push rod 28 that any one side two ends of pedestal 100 have the first opening 22 and second opening 12, two not rounded partial gear-tooth bar executing agencies 400 stretches out respectively from the first opening 22 and the second opening 12.
Above-mentioned transmission mechanism 300 is no less than 1 gear.
When above-mentioned transmission mechanism 300 is only a gear, gear engages with the worm screw 2 of the output of drive source component 200, and gear is coaxial with two not rounded partial gears 15, and between two not rounded partial gears 15.
Above-mentioned transmission mechanism 300 comprise two and to cog time, the worm screw 2 of the gear and the output of drive source component 200 that are positioned at transmission mechanism 300 input engages, the gear being positioned at transmission mechanism 300 output is coaxial with two not rounded partial gears 15, and between two not rounded partial gears 15.
A kind of refrigerator, comprise there is a room casing, be arranged on the drawer on casing and open or close the door body of compartment door, described refrigerator is provided with the automatic door operator opening described drawer or door body.
Embodiment one
Composition graphs 1 to Fig. 5, automatic door operator of the present utility model can be applied to any equipment needing electric opening, as on refrigerator, and be installed on the door body of equipment or the door body rear of drawer, open to be made the door body of the drawer on the door body of equipment or equipment by pushing tow mode.Described automatic door operator 500 comprises pedestal 100, the drive source component 200 be fixed on pedestal 100, for not rounded partial gear-tooth bar executing agency 400 of promoting a body and the transmission mechanism 300 be connected between drive source component 200 and not rounded partial gear-tooth bar executing agency 400.The utility model automatic open device is in order to electric opening two door bodies, thus correspondence is provided with two identical described not rounded partial gear-tooth bar executing agencies 400.
Described pedestal 100 is rectangular-shaped box body structure, the cavity volume 27 comprising the upper box cover 13 of fastening mutually, lower casing 23 and be formed between upper box cover 13 and lower casing 23, first opening 22 is provided with on a minor face of upper box cover 13 and near side, long limit, second opening 12 is provided with on a minor face of lower casing 23 and near side, long limit, after upper box cover 13 and lower casing 23 fasten, first opening 22 and the second opening 12 are positioned on the minor face of the same side, and near different long limits.Two not rounded partial gear-tooth bar executing agencies 400 stretch out respectively from the first opening 22 and the second opening 12.
Above-mentioned upper box cover 13 bottom surface is provided with first sliding tray 101 extended along long limit, lower casing 23 end face is provided with second sliding tray 102 extended along long limit, the short end that lower casing 23 is not provided with the second opening 12 is provided with motor holddown groove 103, between the first sliding tray 101 and the second sliding tray 102, be provided with the first rotating shaft 104, second rotating shaft 105, the 3rd rotating shaft 106, the 4th rotating shaft 107 and the 5th rotating shaft 108, described first rotating shaft 104, second rotating shaft 105, the 3rd rotating shaft 106, the 4th rotating shaft 107 and the 5th rotating shaft 108 are arranged along long side direction.Described first rotating shaft 104 is near motor holddown groove 103.
Drive source component 200 comprises the motor 1 be fixedly installed in the motor holddown groove 103 of pedestal 100, is arranged on the worm screw 2 of motor 1 output.
Described transmission mechanism 300 comprises the first gear 3, second gear 4, the 3rd gear 5, the 4th gear 6, the 5th gear 7, the 6th gear 8, the 7th gear 9, octadentate wheel 10.First gear 3 and the second gear 4 coaxial, be all arranged in the first rotating shaft 104, the reference diameter of the first gear 3 is less than the reference diameter of the second gear 4.3rd gear 5 and the 4th gear 6 coaxial, be all arranged in the second rotating shaft 105, the reference diameter of the 3rd gear 5 is greater than the reference diameter of the 4th gear 6.5th gear 7 and the 6th gear 8 coaxial, be all arranged in the 3rd rotating shaft 106, the reference diameter of the 5th gear 7 is greater than the reference diameter of the 6th gear 8.7th gear 9 is positioned in the 4th rotating shaft 107, and octadentate wheel 10 is positioned in the 5th rotating shaft 108.First gear 3 engages with the worm screw 2 of motor 1 output, and the 3rd gear 5 and the second gear 4 engage, and the 4th gear 6 engages with the 5th gear 7, and the 7th gear 9 is taken turns 10 with the 6th gear 8 and octadentate respectively and engaged.
The not rounded partial gear 15 that described not rounded partial gear-tooth bar executing agency 400 comprises strip slide block 26, is positioned at the tooth bar push rod 28 at strip slide block 26 top and engages with tooth bar push rod 28.Not rounded partial gear 15 is fan-shaped eccentric gear, and octadentate wheel 10 between two not rounded partial gears 15, and is coaxially arranged in the 5th rotating shaft 108.A strip slide block 26 is stuck on the first sliding tray 101, another strip slide block 26 is stuck on the second sliding tray 102, the length of strip slide block 26 is less than the length of sliding tray, tooth bar push rod 28 side is provided with sawtooth, engage with not rounded partial gear 15, not rounded partial gear 15 rotates and drives strip slide block 26 to slide along sliding tray, the tooth bar push rod 28 of the not rounded partial gear-tooth bar executing agency 400 of sliding along the first sliding tray 101 is stretched out from the second opening 12, tooth bar push rod 28 along not rounded partial gear-tooth bar executing agency 400 that the second sliding tray 102 slides stretches out from the first opening 22.
Above-mentioned sliding tray also replaced with coordinating of slide block by slide rail with coordinating of strip slide block 26, as long as make not rounded partial gear-tooth bar executing agency 400 stretch out from opening, and limit not rounded partial gear-tooth bar executing agency 400 and move along box body short side direction in pedestal 100, any one sliding type available replaces.
The process that door is opened by described automatic door operator divides three opening stage: when opening a door body of refrigerator, drive motors 1 rotates, corresponding not rounded partial gear-tooth bar executing agency 400 promotes door body, the thrust (i.e. power output) of not rounded partial gear-tooth bar executing agency 400 opposite house equals a vector for the power such as body door seal suction and hinge frictional force, inertia force, and this power output of not rounded partial gear-tooth bar executing agency 400 maximum in stage; First stage to automatic door operator 500 and door body departs from for second stage; Phase III is that a body moves under the effect of inertia force.
In addition, the power of drive motors 1 is certain, according to rating formula:
p＝(T×n)/9550＝F
0×V
0
Wherein T=T
0/ I; T
0=F
0× r; V
0=ω × r;
Therefore, p=(F
0× r × n)/(9550 × I)=F
0× V
0=F
0× ω × r;
Wherein, p is output power of motor, and T is motor output torque, and n is motor speed, F
0for the power output of tooth bar push rod, V
0for the speed of tooth bar push rod, T
0for the Driving Torque of whole opening device, I is the gearratio (for definite value) of whole opening device, r is that the radius of not rounded partial gear 15 not rounded partial gear 15 when engaging with the tooth of tooth bar push rod 28 is (because not rounded partial gear is eccentric gear, so the radius of not rounded partial gear is change), ω is the rotating speed of not rounded partial gear.
As can be seen from above-mentioned formula, drive motors power p mono-timing, the linear velocity V of tooth bar push rod 28
0with power output F
0be inversely proportional to, the linear velocity V of tooth bar push rod 28
0be directly proportional to the radius r of not rounded partial gear 15, power output F
0be inversely proportional to the radius r of not rounded partial gear 15.The first stage that door is opened by automatic door operator 500, the radius r of not rounded partial gear 15 is smaller, so power output F
0can be larger.Larger in the radius r of second stage not rounded partial gear 15, so the linear velocity V of tooth bar push rod 28
0comparatively large, opening door body can be beaten fast.
Comprehensive foregoing, in the utility model automatic door operator 500, by not rounded partial gear 15 at the end of original state to the second opening stage, the change of the radius r of not rounded partial gear 15 is set to increase gradually.Minimum at the first opening stage not rounded partial gear 15 radius, even if power output F
0larger, the Driving Torque T of automatic door operator
0also also little, and then the Driving Torque T of motor is smaller, therefore can select the motor that power is lower.Open the door the stage second, the radius r of not rounded partial gear 15 is larger, the linear velocity V of tooth bar push rod 28
0be directly proportional to radius r, therefore the linear velocity of tooth bar push rod 28 is larger, saves the time of enabling.
When transmission mechanism 300 adopt only adopt a gear time, gear engages with the worm screw 2 of the output of drive source component 200, and gear is coaxial with two not rounded partial gears 15, and between two not rounded partial gears 15.
Composition graphs 1 to Fig. 5, the detailed process that described door opener opens the door is:
Under two Men Tijun are in the original state of closedown, two not rounded partial gears 15 all do not engage with corresponding tooth bar push rod 28.When one of them body needs to open, motor 1 rotates forward and drives worm screw 2 to rotate, first gear 3 engages drive second gear 4 and rotates with worm screw 2,3rd gear 5 engages drive the 4th gear 6 and rotates with the second gear 4,5th gear 7 engages drive the 6th gear 8 and rotates with the 4th gear 6,6th gear 8 engages with the 7th gear 9,7th gear 9 is taken turns 10 with octadentate and is engaged, final drive not rounded partial gear 15 rotates, the not rounded partial gear 15 corresponding with the door body that need open engages with corresponding tooth bar push rod 28, and band carry-over bar push rod 28 promotes door body.When another Men Tixu opens, motor 2 reverses, and another not rounded partial gear 15 engages with corresponding tooth bar push rod 28, and band carry-over bar push rod 28 pushes the door open body.
The utility model also can design a kind of refrigerator, and this refrigerator comprises the casing with a room, the drawer be arranged on casing, the door body opening or closing a room and described automatic door operator 500.The described automatic open device 500 being used for beating opening door body is arranged on the front side of casing top or central dividing plate; The described automatic open device 500 being used for opening drawer can be arranged between drawer door body rear indoor, also can be arranged on drawer rearward position place etc., the object of equal attainable cost utility model.
In sum, the problem that this automatic door operator takes into full account experience in user's door opening process and may run into, by not rounded partial gear-tooth bar executing agency 400, the comparatively constant rotating speed of motor 1 is converted into tooth bar push rod continually varying linear velocity and power, solves the contradiction of input source power and opening speed and power in whole door opening process.
Claims (7)
1. an automatic door operator, is characterized in that: comprise
Pedestal (100);
Be fixed on the drive source component (200) in pedestal (100);
Two for promoting the not rounded partial gear-tooth bar executing agency (400) of a body: above-mentioned not rounded partial gear-tooth bar executing agency (400) is arranged in pedestal (100), comprise the tooth bar push rod (28) promoting door body, the not rounded partial gear (15) engaged with tooth bar push rod (28), the relative sidewall of two tooth bar push rods (28) is respectively equipped with grinding tooth, and tooth bar push rod (28) is engaged with not rounded partial gear (15) by grinding tooth;
For connecting the transmission mechanism (300) of drive source component (200) and not rounded partial gear-tooth bar executing agency (400): when two door bodies are in closure state, the grinding tooth of described tooth bar push rod (28) does not engage with not rounded partial gear (15); When one of them body needs to open, drive source component (200) drive transmission device (300) rotates, thus drives not rounded partial gear (15) to rotate, and engages with the grinding tooth of tooth bar push rod (28), tooth bar push rod (28) is stretched out from pedestal (100), promotes door body and open.
2. automatic door operator according to claim 1, is characterized in that: above-mentioned not rounded partial gear (15) is fan-shaped eccentric gear.
3. automatic door operator according to claim 1, it is characterized in that: said base (100) is in box body shape, any one side two ends of pedestal (100) have the first opening (22) and the second opening (12), and the tooth bar push rod (28) of two not rounded partial gear-tooth bar executing agencies (400) stretches out respectively from the first opening (22) and the second opening (12).
4. automatic door operator according to claim 1, is characterized in that: above-mentioned transmission mechanism (300) is no less than 1 gear.
5. automatic door operator according to claim 4, it is characterized in that: when above-mentioned transmission mechanism (300) is only a gear, gear engages with the worm screw (2) of the output of drive source component (200), gear is coaxial with two not rounded partial gears (15), and is positioned between two not rounded partial gears (15).
6. automatic door operator according to claim 4, it is characterized in that: above-mentioned transmission mechanism (300) comprise two and to cog time, the worm screw (2) of the gear and the output of drive source component (200) that are positioned at transmission mechanism (300) input engages, the gear being positioned at transmission mechanism (300) output is coaxial with two not rounded partial gears (15), and is positioned between two not rounded partial gears (15).
7. a refrigerator, comprise there is a room casing, be arranged on the drawer on casing and open or close the door body of compartment door, it is characterized in that: described refrigerator be provided with to open described drawer or door body as the automatic door operator in Claims 1-4 as described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520304055.1U CN204677037U (en) | 2015-05-12 | 2015-05-12 | Automatic door operator and there is the refrigerator of this device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520304055.1U CN204677037U (en) | 2015-05-12 | 2015-05-12 | Automatic door operator and there is the refrigerator of this device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204677037U true CN204677037U (en) | 2015-09-30 |
Family
ID=54176740
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520304055.1U Active CN204677037U (en) | 2015-05-12 | 2015-05-12 | Automatic door operator and there is the refrigerator of this device |
Country Status (1)
| Country | Link |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833163A (en) * | 2015-05-12 | 2015-08-12 | 南京理工大学 | Automatic door operator and refrigerator provided with same |
| CN106050047A (en) * | 2016-05-27 | 2016-10-26 | 合肥华凌股份有限公司 | Door opening assisting device and refrigerating equipment |
| CN107076502A (en) * | 2014-09-05 | 2017-08-18 | Lg 电子株式会社 | Door for refrigerator opens and closes device and its control method |
| CN108730021A (en) * | 2017-04-20 | 2018-11-02 | 通用汽车环球科技运作有限责任公司 | Non-circular gear for rotary wastegate actuator |
| CN108952474A (en) * | 2018-07-11 | 2018-12-07 | 华北理工大学 | The safety-door device of Self-service Library |
| CN109906350A (en) * | 2016-11-03 | 2019-06-18 | Lg电子株式会社 | Refrigerator and its control method |
| EP3617623A4 (en) * | 2017-04-24 | 2020-12-30 | LG Electronics Inc. -1- | Refrigerator |
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2015
- 2015-05-12 CN CN201520304055.1U patent/CN204677037U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107076502A (en) * | 2014-09-05 | 2017-08-18 | Lg 电子株式会社 | Door for refrigerator opens and closes device and its control method |
| CN107076502B (en) * | 2014-09-05 | 2019-07-19 | Lg 电子株式会社 | Door for refrigerator opens and closes device and its control method |
| CN104833163A (en) * | 2015-05-12 | 2015-08-12 | 南京理工大学 | Automatic door operator and refrigerator provided with same |
| CN106050047A (en) * | 2016-05-27 | 2016-10-26 | 合肥华凌股份有限公司 | Door opening assisting device and refrigerating equipment |
| WO2017201843A1 (en) * | 2016-05-27 | 2017-11-30 | 合肥华凌股份有限公司 | Door opening assisting means and refrigerating device |
| CN109906350A (en) * | 2016-11-03 | 2019-06-18 | Lg电子株式会社 | Refrigerator and its control method |
| US11536080B2 (en) | 2016-11-03 | 2022-12-27 | Lg Electronics Inc. | Refrigerator and method for controlling same |
| CN108730021A (en) * | 2017-04-20 | 2018-11-02 | 通用汽车环球科技运作有限责任公司 | Non-circular gear for rotary wastegate actuator |
| EP3617623A4 (en) * | 2017-04-24 | 2020-12-30 | LG Electronics Inc. -1- | Refrigerator |
| US11466498B2 (en) | 2017-04-24 | 2022-10-11 | Lg Electronics Inc. | Refrigerator |
| US11767702B2 (en) | 2017-04-24 | 2023-09-26 | Lg Electronics Inc. | Refrigerator |
| CN108952474A (en) * | 2018-07-11 | 2018-12-07 | 华北理工大学 | The safety-door device of Self-service Library |
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| GR01 | Patent grant |