CN114562171B - Automatic door opening device and refrigerator - Google Patents
Automatic door opening device and refrigerator Download PDFInfo
- Publication number
- CN114562171B CN114562171B CN202210131503.7A CN202210131503A CN114562171B CN 114562171 B CN114562171 B CN 114562171B CN 202210131503 A CN202210131503 A CN 202210131503A CN 114562171 B CN114562171 B CN 114562171B
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- door
- top door
- base
- rack
- piece
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- 230000007246 mechanism Effects 0.000 claims abstract description 76
- 230000005540 biological transmission Effects 0.000 claims description 64
- 239000000463 material Substances 0.000 description 24
- 239000000956 alloy Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 229920005669 high impact polystyrene Polymers 0.000 description 3
- 239000004797 high-impact polystyrene Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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
- E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
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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
- E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
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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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
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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
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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
- F25D2323/00—General constructional features not provided for in other groups of this subclass
- F25D2323/02—Details of doors or covers not otherwise covered
Abstract
The invention discloses an automatic door opening device and a refrigerator, wherein the automatic door opening device comprises a base, a driving assembly and a top door mechanism; the driving component is arranged on the base; the top door mechanism is movably arranged on the base, the top door mechanism comprises a first top door piece and a second top door piece, the first top door piece and the second top door piece are connected with the driving assembly, the first top door piece and the second top door piece can extend out along the same side of the base, the first top door piece and the second top door piece are provided with a first position accommodated in the base and a second position extending out of the base, and the first top door piece and the second top door piece are respectively used for opening different door bodies. The automatic door opening device can solve the problem that the existing automatic door opening device cannot open two refrigerator door bodies at the same time.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to an automatic door opening device and a refrigerator.
Background
The middle-high grade refrigerator in the market is relatively larger, the door body, the weight of the load and the door sealing suction force of the door body or the drawer type door body are larger, and the door body of the refrigerator can be opened only when enough acting force is needed to overcome the door sealing suction force in the initial stage of the opening process of the door body of the refrigerator. More and more users feedback that the refrigerator door body is not easy to open. For this problem, an automatic door opening device has appeared.
Existing automatic door opening devices typically include a motor, a drive mechanism (worm gear, worm, gear, etc.), and a top door mechanism. However, such automatic door opening devices generally can only open one door body of a plurality of door bodies of a refrigerator, and for a dual-door refrigerator, a four-door refrigerator or other refrigerators having a plurality of door bodies, a plurality of sets of automatic door opening devices are required to be configured to drive different door bodies, so that two door bodies of the refrigerator cannot be opened simultaneously.
Disclosure of Invention
The invention mainly aims to provide an automatic door opening device, which aims to solve the problem that the existing automatic door opening device cannot open two refrigerator door bodies at the same time.
In order to achieve the above object, the present invention provides an automatic door opening device, comprising:
a base;
The driving assembly is arranged on the base; and
The top door mechanism is movably arranged on the base, the top door mechanism comprises a first top door piece and a second top door piece, the first top door piece and the second top door piece are connected with the driving assembly, the first top door piece and the second top door piece can extend out along the same side of the base, the first top door piece and the second top door piece are provided with a first position accommodated in the base and a second position extending out of the base, and the first top door piece and the second top door piece are respectively used for opening different door bodies.
In an embodiment, the first door top piece includes a first main body portion and a first rack, the first main body portion is slidably mounted on the base, the first rack is disposed on the first main body portion, and the first rack is in transmission connection with the driving assembly.
In an embodiment, the first top door piece further includes a first sliding rail, the first sliding rail is disposed on the first main body portion, the base is provided with a first sliding groove, and the first sliding groove is slidably connected with the first sliding rail.
In an embodiment, the second top door member includes a second main body portion and a second rack, the second main body portion is slidably mounted on the base, the second rack is disposed on the second main body portion, and the second rack is in transmission connection with the driving assembly.
In an embodiment, the first body portion extends in a straight line, and the second body portion extends in a curved shape.
In an embodiment, the second top door piece further includes a second sliding rail, the second sliding rail is disposed in the second main body portion, the base is convexly provided with a first limiting strip and a second limiting strip, a second sliding groove is formed between the first limiting strip and the second limiting strip, and the second sliding rail is slidably connected with the second sliding groove.
In an embodiment, one side of the base is configured as an extending side, and the first limit bar is located between the extending side and the second limit bar; the first limiting strip is far away from one end of stretching out the side is provided with first stopper, the second top door spare has and is close to stretch out the outer end of side, and with the inner that the outer end set up relatively, the inner of second top door spare is provided with the second stopper, the second stopper be in first stopper with the second limiting strip is kept away from stretch out between the one end of side.
In one embodiment, the outer side wall of the first main body part is provided with a protruding part; the automatic door opening device further comprises a micro switch electrically connected with the driving assembly, when the top door mechanism is located at the second position, the protruding portion is abutted to the micro switch, and the micro switch generates a trigger signal so that the driving assembly stops driving the top door mechanism.
In one embodiment, the driving assembly comprises a driving device and a gear transmission mechanism, wherein the driving device is arranged on the base, and the gear transmission mechanism is connected with the driving device.
In an embodiment, the driving device comprises a driving motor, the gear transmission mechanism comprises a transmission gear, the driving motor is arranged on the base, the transmission gear is connected with the driving motor, and the first rack and the second rack are meshed with the transmission gear.
In an embodiment, the automatic door opening device further comprises a speed reducing mechanism, the speed reducing mechanism is connected with the driving motor, the transmission gear is connected with the speed reducing mechanism, and the speed reducing mechanism is used for reducing the rotating speed of the driving motor.
The invention also provides a refrigerator, which comprises a refrigerator body, a plurality of door bodies and the automatic door opening device; the automatic door opening device is arranged on the box body and used for opening the corresponding door body. The automatic door opening device comprises a base, a driving assembly and a top door mechanism; the driving component is arranged on the base; the top door mechanism is movably arranged on the base, the top door mechanism comprises a first top door piece and a second top door piece, the first top door piece and the second top door piece are connected with the driving assembly, the first top door piece and the second top door piece can extend out along the same side of the base, the first top door piece and the second top door piece are provided with a first position accommodated in the base and a second position extending out of the base, and the first top door piece and the second top door piece are respectively used for opening different door bodies.
According to the technical scheme, the driving assembly and the top door mechanism are arranged in the base and are in transmission connection, the top door mechanism comprises the first top door part and the second top door part, the first top door part is arranged corresponding to one door body of the refrigerator, the second door part is arranged corresponding to the other door body of the refrigerator, the driving assembly can drive the first top door part and the second top door part to move at the same time, and the driving assembly stretches out of the same side of the base to abut against the door body of the refrigerator, so that two door bodies of the refrigerator can be opened at the same time, and meanwhile, the automatic door opening device can realize that the two door bodies of the refrigerator are opened at the same time by using one set of driving mechanism and one set of transmission mechanism, so that the internal structure of the automatic door opening device is further simplified, and the production cost of the automatic door opening device is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of an automatic door opener according to the present invention;
FIG. 2 is a schematic view of a portion of the automatic door opener of FIG. 1;
FIG. 3 is a schematic view of the top door mechanism of FIG. 1;
FIG. 4 is a schematic view of the door mechanism of FIG. 3 from another perspective;
FIG. 5 is a schematic view of the automatic door opening device of the present invention in a first position;
FIG. 6 is an enlarged view at A in FIG. 5;
FIG. 7 is a schematic view of the structure of the automatic door opening device in the second position;
fig. 8 is an enlarged view at B in fig. 7.
Reference numerals illustrate:
| Reference numerals | Name of the name | Reference numerals | Name of the name |
| 10 | Automatic door opening device | 300 | Top door mechanism |
| 20 | Refrigerator with a refrigerator body | 310 | First top door piece |
| 21 | Box body | 311 | A first main body part |
| 22 | Door body | 311a | Raised portion |
| 100 | Base seat | 312 | First rack |
| 110 | First chute | 313 | First slide rail |
| 120 | Second chute | 320 | Second top door piece |
| 130 | First limit bar | 321 | A second main body part |
| 131 | First limiting block | 322 | Second rack |
| 140 | Second limit bar | 323 | Second slide rail |
| 150 | Extension side | 324 | Outer end |
| 200 | Driving assembly | 325 | Inner end of |
| 210 | Driving device | 326 | Second limiting block |
| 210a | Driving motor | 400 | Micro-switch |
| 220 | Gear transmission mechanism | 500 | Speed reducing mechanism |
| 220a | Transmission gear |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" is presented throughout this document, it is intended to include three schemes in parallel, taking "a and/or B" as an example, including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides an embodiment of an automatic door opening device, which is used for simultaneously opening a plurality of door bodies of a refrigerator, because the weight of the door bodies, the load of the door bodies and the door sealing suction force of the door bodies or drawer type door bodies in the middle-high grade refrigerator in the market at present are relatively large, the door bodies of the refrigerator can be opened only by overcoming the door sealing suction force by enough acting force in the initial stage of the opening process of the door bodies of the refrigerator, particularly for the double-door refrigerator, a user needs to open two door bodies of the double-door refrigerator when opening the door bodies to take articles in the refrigerator, and the user needs to apply larger force when opening the two door bodies.
Referring to fig. 1 to 8, in an embodiment of the invention, the automatic door opening device 10 includes a base 100, a driving assembly 200 and a door top mechanism 300; the driving assembly 200 is disposed on the base 100; the top door mechanism 300 is movably disposed on the base 100, the top door mechanism 300 includes a first top door member 310 and a second top door member 320, the first top door member 310 and the second top door member 320 are connected to the driving assembly 200, the first top door member 310 and the second top door member 320 may extend along the same side of the base 100, the first top door member 310 and the second top door member 320 have a first position accommodated in the base 100, and a second position extending out of the base 100, wherein the first top door member 310 and the second top door member 320 are respectively used for opening different door bodies 22.
Specifically, the base 100 is generally square, and the material of the base 100 is a hard material, and as for the type of hard material, it may be ABS, HIPS, PP, PC or another hard material, or a metal or alloy material, and the like, and is not particularly limited. The base 100 has a space formed therein for installing the driving assembly 200, the door mechanism 300, etc., and the driving assembly 200 is connected to the door mechanism 300, and the driving assembly 200 is used for driving the door mechanism 300 to move so that the door mechanism 300 can open the door 22 of the refrigerator 20. Two openings are provided on the same side of the base 100, and the first top door 310 and the second top door 320 may protrude from the corresponding openings to abut against the door 22 of the refrigerator 20 and be opened. The first top door 310 and the second top door 320 have a first position accommodated in the base 100, and a second position extending out of the base 100, where the first position refers to an initial position when the first top door 310 and the second top door 320 do not need to open the door 22 or after the door 22 is opened, and the second position refers to a stop position when the first top door 310 and the second top door 320 open the door 22 of the refrigerator 20.
The first top door member 310 and the second top door member 320 are respectively used for opening different door bodies 22, when the driving assembly 200 works, the first top door member 310 and the second top door member 320 can be driven to move simultaneously, and the first top door member 310 can touch one door body 22 and open the same first, and then the second top door member 320 can touch the other door body 22 and open the same second; alternatively, the second top door 320 may first touch one door 22 and open it, and then the first top door 310 may touch the other door 22 and open it; alternatively, the first top door 310 and the second top door 320 may touch both door bodies 22 at the same time, and open both door bodies 22 at the same time. The order in which the driving assembly 200 drives the first top door 310 and the second top door 320 to open the different door bodies 22 of the refrigerator 20 may be adjusted, and may be specifically selected according to the actual situation and application, without being particularly limited thereto.
According to the technical scheme of the invention, the driving assembly 200 and the top door mechanism 300 are arranged in the base 100, and the driving assembly 200 is in transmission connection with the top door mechanism 300, wherein the top door mechanism 300 comprises the first top door part 310 and the second top door part 320, the first top door part 310 is arranged corresponding to one door body 22 of the refrigerator 20, the second door body 22 is arranged corresponding to the other door body 22 of the refrigerator 20, the driving assembly 200 can drive the first top door part 310 and the second top door part 320 to move simultaneously, and the two door bodies 22 of the refrigerator 20 are stretched out from the same side of the base 100 to abut against the door bodies 22 of the refrigerator 20, so that the two door bodies 22 of the refrigerator 20 can be opened simultaneously, and meanwhile, the automatic door opening device 10 can be opened simultaneously by using one set of driving mechanism and one set of transmission mechanism, so that the internal structure of the automatic door opening device 10 is further simplified, and the production cost of the automatic door opening device 10 is reduced.
Referring to fig. 1 to 4, in an embodiment, the first door top 310 includes a first body 311 and a first rack 312, the first body 311 is slidably mounted on the base 100, the first rack 312 is disposed on the first body 311, and the first rack 312 is in driving connection with the driving assembly 200.
Specifically, the material of the first top door member 310 is a hard material, and as for the type of hard material, it may be ABS, HIPS, PP, PC hard materials, or metal or alloy materials, etc., and in this embodiment, the material of the first top door member 310 is a POM material, which has high mechanical strength and rigidity, good elasticity, strong repeated impact resistance, self-lubricating property, good wear resistance, etc. The POM material has a small friction factor, good wear resistance, and good self-lubricity, and thus can satisfy a use scenario in which the first top door 310 moves in the base 100 for a long period of time. Meanwhile, the material of the first top door 310 is POM material, which is lower in cost than metal material or alloy material, etc., and can further reduce the production cost of the automatic door opener 10.
The first main body 311 is substantially rectangular, the first rack 312 is disposed on one side of the first main body 311, the driving assembly 200 is connected to the first rack 312, and when the driving assembly 200 works, the driving assembly 200 can drive the first door top 310 to slide from the first position to the second position, and to abut against the door 22, so as to push the door 22 to move, so as to open the door 22. The first rack 312 may be provided as a straight tooth or a helical tooth, and the straight tooth has a simple structure and is convenient to process; the helical teeth operate stably in the meshing process, the bearing capacity is strong, and the service life is relatively long. The first rack 312 may be provided as any one of a straight tooth and a helical tooth, or may be provided as other kinds of racks, without particular limitation.
Referring to fig. 1 to 4, in an embodiment, the first top door 310 further includes a first sliding rail 313, the first sliding rail 313 is disposed on the first body 311, the base 100 is provided with a first sliding slot 110, and the first sliding slot 110 is slidably connected with the first sliding rail 313.
Specifically, the first sliding rail 313 is disposed at the bottom of the first body 311, that is, a surface of the first body 311 near the base 100, the first sliding groove 110 may be formed by recessing the base 100, and the first sliding rail 313 and the first sliding groove 110 are cooperatively connected, so that the first top door 310 may slide in the base 100. In this embodiment, three sliding strips are protruding from the base 100, and are disposed at intervals, the three sliding strips extend toward the extending side 150 of the top door mechanism 300, a first sliding slot 110 is formed between the three sliding strips, and the first sliding rail 313 is cooperatively connected with the first sliding slot 110, so that the first top door member 310 is movable in the base 100.
Referring to fig. 1 to 4, in an embodiment, the second top door 320 includes a second body portion 321 and a second rack 322, the second body portion 321 is slidably mounted on the base 100, the second rack 322 is disposed on the second body portion 321, and the second rack 322 is in transmission connection with the driving assembly 200.
Specifically, the material of the second top door member 320 is a hard material, and as for the type of hard material, it may be ABS, HIPS, PP, PC, or a hard material such as a metal or an alloy material, and in this embodiment, the material of the second top door member 320 is the same as the material of the first top door member 310, and both the material is a POM material, which has the advantages of high mechanical strength and rigidity, good elasticity, strong repeated impact resistance, self-lubrication, and good wear resistance. The POM material has a small friction factor, good wear resistance, and good self-lubricity, and thus can satisfy a use scenario in which the second top door 320 moves in the base 100 for a long period of time. Meanwhile, the material of the second top door 320 is POM material, which is lower in cost than a metal material or an alloy material, etc., and can further reduce the production cost of the automatic door opening device 10.
The shape of the second body portion 321 may be curved, may be a combination of two portions, or may be other shapes as long as the effect of extending from the inside of the base 100 and opening the door 22 is achieved, which is not particularly limited. The second body 321 is slidably mounted on the base 100, and when the driving assembly 200 is operated, the second body 321 can slide from the first position to the second position and contact with the door 22, so as to push the door 22 to move, so as to open the door 22. The second rack 322 may be provided as a straight tooth or a helical tooth, and the straight tooth has a simple structure and is convenient for processing; the helical teeth operate stably in the meshing process, the bearing capacity is strong, and the service life is relatively long. The second rack 322 may be provided as any one of a straight tooth and a helical tooth, or may be provided as other kinds of racks, which is not particularly limited.
Referring to fig. 1 to 4, in an embodiment, the first body portion 311 extends in a straight line, and the second body portion 321 extends in a curved shape. Specifically, since the refrigerator 20 has a certain distance between the two door bodies 22, the first top door member 310 and the second top door member 320 are installed at a certain distance, and the first top door member 310 and the second top door member 320 are driven by the driving assembly 200, so that the first body portion 311 is arranged to extend in a straight line, and the second body portion 321 extends in a curved shape, so as to meet the requirement that the first top door member 310 and the second top door member 320 simultaneously open the door bodies 22.
Referring to fig. 1 to 4, in an embodiment, the second top door 320 further includes a second sliding rail 323, the second sliding rail 323 is disposed on the second body 321, the base 100 is convexly provided with a first limiting strip 130 and a second limiting strip 140, a second sliding groove 120 is formed between the first limiting strip 130 and the second limiting strip 140, and the second sliding rail 323 is slidably connected with the second sliding groove 120.
Specifically, the second sliding rail 323 is disposed at the bottom of the second body 321, that is, the second body 321 is close to one surface of the base 100, the bottom of the base 100 is convexly provided with a first limiting strip 130 and a second limiting strip 140, the first limiting strip 130 and the second limiting strip 140 linearly form the second sliding groove 120, and the second sliding rail 323 and the second sliding groove 120 are cooperatively connected, so that the second top door member 320 can slide in the base 100. The second chute 120 extends in a curved shape so that the second top door 320 can slide along a curved line to open the door 22. Of course, in other embodiments, the second sliding groove 120 may be formed by recessing the base 100, which is not limited in particular.
Referring to fig. 1 to 4, in an embodiment, one side of the base 100 is provided as an extending side 150, and the first limit bar 130 is located between the extending side 150 and the second limit bar 140; the first limiting bar 130 is provided with a first limiting block 131 at an end far away from the extending side 150, the second top door 320 has an outer end 324 close to the extending side 150, and an inner end 325 opposite to the outer end 324, the inner end 325 of the second top door 320 is provided with a second limiting block 326, and the second limiting block 326 moves between the first limiting block 131 and the end of the second limiting bar 140 far away from the extending side 150.
Specifically, the extending side 150 is provided with an opening through which the first top door member 310 and the second top door member 320 extend, and when the first top door member 310 and the second top door member 320 move from the first position to the second position, the extending side extends and then abuts against the door 22, thereby pushing the door 22 to move to open the door 22. When the second top door 320 is mounted on the base 100, the second limiting block 326 should be located between the first limiting block 131 and an end of the second limiting bar 140 away from the extending side 150, and when the second top door 320 is in the first position, the second limiting block 326 abuts against the first limiting block 131; when the second top door 320 is at the second position, the second limiting block 326 abuts against an end of the second limiting bar 140 away from the protruding side 150. The space between the ends of the first stopper 131 and the second stopper 140 away from the protruding side 150 mainly plays a role in limiting the movement of the second top door 320.
When the second top door 320 moves from the first position to the second position and the second limiting block 326 abuts against the end of the second limiting block 140 away from the extending side 150, the driving motor 210a in the driving assembly 200 is prevented from rotating, the current in the driving motor 210a increases, and the control device of the refrigerator 20 can control the driving motor 210a to stop working, and the door 22 should be in an open state. Similarly, when the second top door 320 moves from the second position to the first position and the second limiting block 326 abuts against the first limiting block 131, the driving motor 210a in the driving assembly 200 is prevented from rotating, the current in the driving motor 210a increases, and the control device of the refrigerator 20 can control the driving motor 210a to stop working, and the first top door 310 and the second top door 320 are at the first position.
Referring to fig. 1 to 4, in an embodiment, a protruding portion 311a is disposed on an outer side wall of the first body portion 311; the automatic door opening device 10 further includes a micro switch 400 electrically connected to the driving assembly 200, when the top door mechanism 300 is located at the second position, the protruding portion 311a abuts against the micro switch 400, and the micro switch 400 generates a trigger signal to stop the driving assembly 200 from driving the top door mechanism 300.
Specifically, the micro-switch 400 is mounted on the base 100 and disposed proximate the extension side 150. When the first top door member 310 slides from the first position to the second position, the protruding portion 311a of the first main body portion 311 contacts with the elastic piece of the micro switch 400, and when the first top door member 310 is in the second position and the door body 22 is opened, the protruding portion 311a of the first main body portion 311 abuts against the elastic piece of the micro switch 400, and the micro switch 400 generates a trigger signal, and the trigger signal can be transmitted to the driving assembly 200, so that the driving assembly 200 receives the information that the door body 22 is opened, and the driving of the top door mechanism 300 continues to extend outwards.
Referring to fig. 1 to 8, in an embodiment, the driving assembly 200 includes a driving device 210 and a gear transmission mechanism 220, wherein the driving device 210 is disposed on the base 100, and the gear transmission mechanism 220 is connected to the driving device 210.
Further, the driving device 210 includes a driving motor 210a, the gear transmission mechanism 220 includes a transmission gear 220a, the driving motor 210a is disposed on the base 100, the transmission gear 220a is connected to the driving motor 210a, and the first rack 312 and the second rack 322 are meshed with the transmission gear 220 a.
Specifically, the base 100 is provided with a motor groove in which the driving motor 210a is installed, and the driving motor 210a is fixedly installed in the motor groove. The transmission gear 220a is sleeved on the output shaft of the driving motor 210a, so that the transmission gear 220a can rotate under the drive of the driving motor 210 a; the transmission gear 220a is meshed with the first rack 312 and the second rack 322, so that the rotation of the transmission gear 220a drives the first rack 312 and the second rack 322 to rotate, and further the first top door piece 310 and the second top door piece 320 push the door body 22 to move so as to open the door body 22. The driving motor 210a and the transmission gear 220a have simple structure and connection relationship, and have high transmission efficiency.
In an embodiment, the driving device 210 includes a driving motor 210a, the gear transmission mechanism 220 may include a worm, a worm wheel and a plurality of transmission gears, the worm is connected with an output shaft of the driving motor 210a and meshed with the worm wheel, and the plurality of transmission gears are in transmission connection; one of the transmission gears is sleeved on the rotating shaft of the worm gear, and the other transmission gear is meshed with the first rack 312 and the second rack 322. The worm is connected with the output shaft of the driving motor 210a and meshed with the worm wheel to rotate under the driving of the driving motor 210a and drive the worm wheel to rotate. The transmission gears are in transmission connection, one transmission gear is coaxially arranged with the worm wheel and sleeved on the rotating shaft of the worm wheel so as to rotate along with the worm wheel; the other transmission gear 220a is meshed with the first rack 312 and the second rack 322 to transmit power through the plurality of transmission gears so as to drive the first top door member 310 and the second top door member 320 to move. It should be noted that the number of the transmission gears may be two or more than two, and may be specifically set according to the transmission requirement.
In an embodiment, the driving device 210 includes a driving motor 210a, the gear transmission mechanism 220 may include a sprocket mechanism, a driving wheel of the sprocket mechanism is in transmission connection with an output shaft of the driving device 210, and a driven wheel of the sprocket mechanism is in transmission connection with the first top door member 310 and the second top door member 320; or the gear transmission mechanism 220 comprises a belt wheel mechanism, a driving wheel of the belt wheel mechanism is in transmission connection with an output shaft of the driving device 210, and a driven wheel of the belt wheel mechanism is in transmission connection with the first top door piece 310 and the second top door piece 320.
In one embodiment, the driving device 210 may also be an electromagnetic driving device, and the gear transmission mechanism 220 may include a straight rack, where the straight rack is connected to the electromagnetic driving device and meshed with the first rack 312 and the second rack 322; the electromagnetic driving device is used for driving the straight racks to move so as to drive the first top door piece 310 and the second top door piece 320 to move. The electromagnetic driving device can be an electromagnetic driver such as an electromagnetic solenoid, belongs to a general device and is easy to realize. In addition, the electromagnetic driving device and the straight racks occupy smaller space, respond rapidly and have higher transmission efficiency.
Referring to fig. 1 to 8, in an embodiment, the automatic door opening device 10 further includes a speed reducing mechanism 500, the speed reducing mechanism 500 is connected to the driving motor 210a, the transmission gear 220a is connected to the speed reducing mechanism 500, and the speed reducing mechanism 500 is used for reducing the rotation speed of the driving motor 210 a.
Specifically, the base 100 is provided with a mounting groove in which the speed reducing mechanism 500 is mounted, and the speed reducing mechanism 500 is fixedly mounted in the mounting groove. By arranging the reduction mechanism 500 between the driving motor 210a and the transmission gear 220a to achieve a reduction function in the power transmission process, the moving speeds of the first top door member 310 and the second top door member 320 are reduced, so that the door body 22 can be opened at a proper speed, the use of a user is facilitated, the door opening speed is prevented from being too fast to collide with an external object or a human body, and the safety of the door opening operation is improved. Meanwhile, by the reduction mechanism 500, the driving motor 210a can be horizontally installed in the motor groove of the base 100, further reducing the height of the automatic door opening device 10.
Referring to fig. 5 to 8, the present invention further provides a refrigerator 20, wherein the refrigerator 20 includes a case 21, a plurality of doors 22, and an automatic door opening device 10. The plurality of door bodies 22 are rotatably disposed at the opening of the case 21, and the automatic door opening device 10 is disposed in the case 21 to open the corresponding door bodies 22. The specific structure of the automatic door opening device 10 refers to the above embodiments, and since the refrigerator 20 adopts all the technical solutions of all the embodiments, at least has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.
In one embodiment, the refrigerator 20 includes a cabinet 21, a plurality of doors 22, and an automatic door opening device 10. The plurality of door bodies 22 are provided on the same side of the case 21 and are movable with respect to the case 21. The base 100 of the automatic door opening device 10 is connected with the box body 21 and is positioned at one side of the door body 22 facing the box body 21; the first top door 310 and the second top door 320 of the stand are respectively disposed corresponding to the different door bodies 22 such that the different door bodies 22 can be opened when the first top door 310 and the second top door 320 are located at the second position. Specifically, the top door mechanism 300 of the automatic door opening device 10 can extend outwards from the first position to the second position under the action of the driving assembly 200, so as to contact with the corresponding door body 22, further push the door body 22 to move, and realize the opening of the door body 22, so that the two door bodies 22 are simultaneously opened by one set of automatic door opening device 10, the overall structure of the refrigerator 20 is simplified, and the cost is reduced. It should be noted that, the door 22 and the case 21 may be rotatably connected or slidably connected, so as to rotate or slide relative to the case 21 under the pushing of the top door mechanism 300.
Further, the plurality of door bodies 22 include a first door body and a second door body, and the first door body and the second door body are disposed along the width direction of the case 21; the automatic door opening device 10 is arranged at the top and bottom of the box body 21 or at any height position in the box body 21; the first position of the first top door member 310 corresponds to a side of the first door body facing the case 21, and the second position of the second top door member 320 corresponds to a side of the second door body facing the case 21. When the first top door member 310 and the second top door member 320 of the automatic door opening device 10 rotate, the first top door member 310 can move from the first position to the second position, and the first top door member 310 pushes the first door body to move, and the second top door member 320 pushes the second door body to move, so that the first door body and the second door body can be opened simultaneously. The first door body and the second door body may be a rotary door body 22 that is disposed in a side-by-side manner, or may be both a sliding door body 22, or may be a rotary door body 22 and a sliding door body 22, which is not particularly limited.
The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (7)
1. An automatic door opening device, characterized in that the automatic door opening device comprises:
a base;
The driving assembly is arranged on the base; and
The top door mechanism is movably arranged on the base and comprises a first top door piece and a second top door piece, the first top door piece and the second top door piece are connected with the driving assembly, the first top door piece and the second top door piece can extend out along the same side of the base, the first top door piece and the second top door piece are provided with a first position accommodated in the base and a second position extending out of the base, and the first top door piece and the second top door piece are respectively used for opening different door bodies;
The driving assembly comprises a set of driving device and a set of gear transmission mechanism, the driving device is arranged on the base, and the gear transmission mechanism is connected with the driving device;
The first top door piece comprises a first main body part and a first rack, the first main body part is slidably mounted on the base, the first rack is arranged on the first main body part, and the first rack is in transmission connection with the driving assembly; the second top door piece comprises a second main body part and a second rack, the second main body part is slidably mounted on the base, the second rack is arranged on the second main body part, and the second rack is in transmission connection with the driving assembly;
the driving device comprises a driving motor, the gear transmission mechanism comprises a transmission gear, the driving motor is arranged on the base, the transmission gear is connected with the driving motor, and the first rack and the second rack are meshed with the transmission gear; the transmission gear can rotate under the drive of the driving motor; the transmission gear is meshed with the first rack and the second rack, so that the first rack and the second rack are simultaneously driven to rotate through rotation of the transmission gear, and further the first door-pushing piece and the second door-pushing piece push the door body to move so as to open the door body;
the first main body part extends in a straight line, and the second main body part extends in a curved shape.
2. The automatic door opening device according to claim 1, wherein the first top door member further comprises a first slide rail, the first slide rail is disposed on the first main body portion, the base is provided with a first slide groove, and the first slide groove is slidably connected with the first slide rail.
3. The automatic door opening device according to claim 1, wherein the second top door member further comprises a second sliding rail, the second sliding rail is disposed on the second main body portion, the base is convexly provided with a first limiting strip and a second limiting strip, a second sliding groove is formed between the first limiting strip and the second limiting strip, and the second sliding rail is slidably connected with the second sliding groove.
4. The automatic door opener according to claim 3, wherein one side of the base is provided as an extended side, and the first limit bar is located between the extended side and the second limit bar; the first limiting strip is far away from one end of stretching out the side is provided with first stopper, the second top door spare has and is close to stretch out the outer end of side, and with the inner that the outer end set up relatively, the inner of second top door spare is provided with the second stopper, the second stopper be in first stopper with the second limiting strip is kept away from stretch out between the one end of side.
5. The automatic door opening device according to any one of claims 1 to 4, wherein an outer side wall of the first main body portion is provided with a protruding portion; the automatic door opening device further comprises a micro switch electrically connected with the driving assembly, when the top door mechanism is located at the second position, the protruding portion is abutted to the micro switch, and the micro switch generates a trigger signal so that the driving assembly stops driving the top door mechanism.
6. The automatic door opening device according to claim 5, further comprising a speed reducing mechanism connected to the driving motor, the transmission gear being connected to the speed reducing mechanism, the speed reducing mechanism being configured to reduce a rotation speed of the driving motor.
7. A refrigerator, the refrigerator comprising:
A case;
The door bodies are rotatably arranged at the opening of the box body; and
The automatic door opening device according to any one of claims 1 to 6, wherein the automatic door opening device is provided to the case to open the corresponding door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210131503.7A CN114562171B (en) | 2022-02-11 | 2022-02-11 | Automatic door opening device and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210131503.7A CN114562171B (en) | 2022-02-11 | 2022-02-11 | Automatic door opening device and refrigerator |
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| Publication Number | Publication Date |
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| CN114562171A CN114562171A (en) | 2022-05-31 |
| CN114562171B true CN114562171B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210131503.7A Active CN114562171B (en) | 2022-02-11 | 2022-02-11 | Automatic door opening device and refrigerator |
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| CN (1) | CN114562171B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117780219A (en) * | 2022-09-20 | 2024-03-29 | 合肥美的电冰箱有限公司 | Door opening and closing device and electrical equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826926A (en) * | 2018-12-11 | 2019-05-31 | 青岛海尔股份有限公司 | Automatic door operator and refrigerator with it |
| CN111765707A (en) * | 2020-07-10 | 2020-10-13 | 马鞍山学院 | Automatic double-door refrigerator and double-door device thereof |
| CN112539013A (en) * | 2020-12-08 | 2021-03-23 | 湖北美的电冰箱有限公司 | Door opening device and refrigeration equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761136B (en) * | 2016-12-27 | 2018-04-20 | 青岛海尔股份有限公司 | Automatic door operator and the refrigerator with the device |
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2022
- 2022-02-11 CN CN202210131503.7A patent/CN114562171B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826926A (en) * | 2018-12-11 | 2019-05-31 | 青岛海尔股份有限公司 | Automatic door operator and refrigerator with it |
| CN111765707A (en) * | 2020-07-10 | 2020-10-13 | 马鞍山学院 | Automatic double-door refrigerator and double-door device thereof |
| CN112539013A (en) * | 2020-12-08 | 2021-03-23 | 湖北美的电冰箱有限公司 | Door opening device and refrigeration equipment |
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| CN114562171A (en) | 2022-05-31 |
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