CN201715802U - Opening-closing device for refrigerator door - Google Patents
Opening-closing device for refrigerator door Download PDFInfo
- Publication number
- CN201715802U CN201715802U CN2010201359199U CN201020135919U CN201715802U CN 201715802 U CN201715802 U CN 201715802U CN 2010201359199 U CN2010201359199 U CN 2010201359199U CN 201020135919 U CN201020135919 U CN 201020135919U CN 201715802 U CN201715802 U CN 201715802U
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- Prior art keywords
- gear
- tooth bar
- optical sensor
- meshed
- synchronous motor
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- Expired - Lifetime
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- 230000003287 optical effect Effects 0.000 claims abstract description 46
- 230000001360 synchronised effect Effects 0.000 claims abstract description 30
- 230000033001 locomotion Effects 0.000 claims description 16
- 238000007789 sealing Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000001427 coherent effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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Abstract
The utility model discloses an opening-closing device for a refrigerator door. The opening-closing device comprises an alternating current synchronous motor (3) arranged inside a shell (2), a first gear (6) arranged near to the alternating current synchronous motor (3), a second gear (7) arranged near to the first gear (6), a third gear (8) arranged in front of the second gear (7), a fourth gear (9) and a fifth gear (10) which are oppositely arranged on both sides of the third gear (8), and a left gear rack (11) and a right gear rack (12) which are arranged on both sides of the shell (2); the opening-closing device also comprises a first shielding plate (11a) and a second shielding plate (11b) which are arranged on the left gear rack (11) in parallel at a predetermined interval; the opening-closing device further comprises a first optical sensor (13) and a second optical sensor (14) which are respectively arranged on a printed circuit board (15); and when the left gear rack (11) moves, the first optical sensor (13) and the second optical sensor (14) are correspondingly interrupted.
Description
Technical field
The present invention relates to a kind of refrigerator door open-close device, particularly, the present invention relates to the door switch unit of a kind of cold compartment of refrigerator and refrigerating chamber, drive pinion and rack-and-pinion rotation and straight reciprocating motion by ac synchronous motor, the door of cold compartment of refrigerator and refrigerating chamber can be opened or closed like a cork.
Background technology
Usually, refrigerator offers storeroom (being refrigerating chamber and refrigerating chamber) with the cold air that evaporimeter produces, thereby makes the food in the storeroom keep fresh.The front of storeroom opens or closes by the door that a fan comprises magnetic gasket, and this magnetic gasket sticks to towards the marginal surface in storeroom front, and when door was closed, storeroom was in sealing state by the sealing ring of door like this.
When refrigerator was in sealing state, the air in the storeroom carried out heat exchange and refrigeration by evaporimeter, because the contraction of cold air, the atmosphere in the pressure ratio external world in the storeroom forces down.
When the user opens the door of refrigerator storeroom, need opposite house to apply one than the adhesion of the magnetic force generation of magnetic gasket and the also big power of summation of storeroom atmosphere outside pressure, therefore, the door of opening refrigerator storeroom is very difficult.Recently, along with the refrigerator volume is increasing, the weight of the door of storeroom is more and more heavier, the feasible bigger power of a needs of opening.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of device, this device solves above-mentioned problems of the prior art in the advantage that keeps above-mentioned prior art.
The object of the present invention is to provide a kind of refrigerator door open-close device, when opening refrigerator doors, utilize Electromechanically operated pushing, put on atmospheric pressure on the door outward to overcome refrigerator doors, the coherent condition of depressurization circle at first, user's manual unlocking door more then, thus can enough very little power open door swimmingly.
For achieving the above object, the present invention has taked following technical scheme:
A kind of refrigerator door open-close device, it comprises:
Be arranged at the ac synchronous motor of housing inboard, the output shaft gear of this ac synchronous motor is meshed with idle gear;
Be arranged at the first other gear of described ac synchronous motor, it comprises and cogging and lower gear that wherein cogging is meshed with described idle gear;
Be arranged at the second other gear of described first gear, it comprises and cogging and lower gear that wherein lower gear is meshed with the lower gear of described first gear;
Be arranged at the 3rd gear of the described second gear front, it comprises and cogging and lower gear that wherein cogging is meshed with cogging of described second gear;
Be relatively arranged on the 4th gear and the 5th gear of described the 3rd gear both sides, described the 4th gear and the 5th gear include and cog and lower gear, the lower gear of described the 3rd gear is meshed with the lower gear of described the 4th gear and the lower gear of the 5th gear respectively, makes win gear and the reverse rotation each other of the 5th gear;
Be arranged at the left gear tooth bar and the right gear tooth bar of described housing two side ends, this left gear tooth bar and right gear tooth bar are meshed with the 4th gear and cogging of the 5th gear respectively, by rotatablely moving of ac synchronous motor, rotatablely moving of each gear is converted to the rectilinear motion of left gear tooth bar and right gear tooth bar;
From left gear tooth bar outstanding first barricade and secondary shielding plate; And be arranged at first optical sensor and second optical sensor on the printed circuit board (PCB), wherein, when described first optical sensor and second optical sensor are opened or closed by described first barricade and secondary shielding plate, produce output signal, described left gear tooth bar and right gear tooth bar are according to this output signal and forward direction, counter motion synchronously and stop at original state.
Description of drawings
The purpose of apparatus of the present invention, feature and advantage will be by the following drawings and detailed descriptions and are clearer, wherein:
Fig. 1 is the decomposition diagram of apparatus of the present invention chief component;
Fig. 2 is the vertical view of rack-and-pinion when initial position of door switch unit of the present invention;
Fig. 3 is the vertical view of refrigerating chamber when the opening operation state in the door switch unit of the present invention;
Fig. 4 is the vertical view of refrigerating chamber when the initial operation state in the door switch unit of the present invention;
Fig. 5 is an output signal system diagram in the door switch unit of the present invention.
Reference numeral: 1, door switch unit; 2, housing; 3, motor; 4, output shaft gear; 5, idle gear; 6, first gear; 7, second gear; 8, the 3rd gear; 9, the 4th gear; 10, the 5th gear; 11, left gear tooth bar; 11a, first barricade; 11b, secondary shielding plate; 12, right gear tooth bar; 13, first optical sensor; 14, second optical sensor; 15, printed circuit board (PCB) (PCB); 6a-10a, cog; 6b-10b, lower gear.
The specific embodiment
Describe the preferred embodiments of the present invention in detail below with reference to accompanying drawing.With undefined object, for example concrete composition structure and element, just in order to assist those skilled in the art to fully understand apparatus of the present invention, but apparatus of the present invention are not so limited.
A kind of refrigerator door open-close device comprises an ac synchronous motor 3 that is installed in housing 2 inside, and the output shaft gear 4 of this ac synchronous motor 3 is meshed with the idle gear 5 that is arranged at ac synchronous motor 3 top eccentric positions; Be arranged on first gear 6 on described ac synchronous motor 3 next doors, it comprises cog 6a and lower gear 6b, and the 6a that wherein cogs is meshed with described idle gear 5.
Be arranged at second gear 7 on described first gear 6 next doors, it comprises cog 7a and lower gear 7b, and wherein lower gear 7b is meshed with the lower gear 6b of described first gear 6; Be arranged at the 3rd gear 8 of described second gear 7 fronts, it comprises cog 8a and lower gear 8b, and the 7a that cogs of described second gear 7 is meshed with the 8a that cogs of the 3rd gear 8;
Be arranged at the 4th gear 9 and the 5th gear 10 of described the 3rd gear 8 both sides respectively, wherein the 4th gear 9 comprises cog 9a and lower gear 9b, the 5th gear 10 comprises cog 10a and lower gear 10b, the lower gear 8b of described the 3rd gear 8 is meshed with the lower gear 9b of described the 4th gear 9 and the lower gear 10b of the 5th gear 10, makes that the direction of rotation of the 4th gear 9 and the 5th gear 10 is opposite each other;
Left gear tooth bar 11 and right gear tooth bar 12 are arranged at the two side ends of described housing 2; This left gear tooth bar 11 is meshed with the 9a that cogs of described the 4th gear 9, and this right gear tooth bar 12 is meshed with the 10a that cogs of described the 5th gear 10.By rotatablely moving of described ac synchronous motor 3, rotatablely moving of each gear 4 to 10 is converted to the rectilinear motion of described left gear tooth bar 11 and right gear tooth bar 12, makes rack-and- pinion 11 and 12 move simultaneously in the opposite direction or stops at original state.
Left gear tooth bar 11 is used to open the door of refrigerating chamber, and right gear tooth bar 12 is used to open the door of refrigerating chamber.The first barricade 11a and secondary shielding plate 11b are arranged on the precalculated position of left gear tooth bar 11 with default spaced and parallel, when 11 motions of left gear tooth bar, the first barricade 11a and secondary shielding plate 11b interrupt being arranged on first optical sensor 13 and second optical sensor 14 on the printed circuit board (PCB) 15, thereby detect the motion and the stop position of rack-and-pinion 11.Be installed in microcomputer on the PCB15 and can control the direction of rotation and the operation of ac synchronous motor 3, promptly comprise rotation forward, rotation (counter-rotating) and halted state backward.
In explanation before, left gear tooth bar 11 is used to open the door of refrigerating chamber, and right gear tooth bar 12 is used to open the door of refrigerating chamber.Yet if necessary, left gear tooth bar 11 also can be used to open the door of refrigerating chamber, and right gear tooth bar 12 also can be used to open the door of refrigerating chamber.
Below describing utilizes optical sensor to carry out the position probing output signal and the operating process of gear.
1) initial position
At first, as shown in Figure 2, when door switch unit 1 of the present invention was assembled, left and right rack-and- pinion 11 and 12 was in the state of a balance, promptly at a predetermined initial position.Under original state, left and right rack-and- pinion 11 and 12 is positioned at the center of an operating point, and this operating point is the reference point of propulsion and reverse.The first barricade 11a and the secondary shielding plate 11b that stretch out left gear tooth bar 11 are vertically installed in directly over first optical sensor 13 and second optical sensor 14, the first photoelectricity sensor 13 and second optical sensor 14 are arranged on the PCB15, first optical sensor 13 and second optical sensor 14 detect barricades sending a signal to PCB15, thereby confirm the home position of original state.When initial position, first optical sensor 13 and the second photoelectricity sensor 14 are in the state of " ON ".
2) open the door of refrigerating chamber
When switch outside the user utilizes refrigerator or detector were opened the door of refrigerating chamber, the microcomputer that is installed on the PCB15 applied strength and electric rotating machine 3 to ac synchronous motor 3.This motor power output is passed to each gear 4-10 with restoring operation.As shown in Figure 3, when left gear tooth bar 11 propulsions in the door switch unit 1 (right gear tooth bar 12 counter motions simultaneously), the front end of left gear tooth bar 11 is pushed the door of refrigerating chamber open move to this left gear tooth bar 11 distance, and the state that sticks that makes door go up sealing ring is released (being preliminary door opening state).
When 11 propulsions of left gear tooth bar, the first barricade 11a departs from first optical sensor 13, and while secondary shielding plate 11b departs from second optical sensor 14 and is positioned at the top of first optical sensor 13.I.e. signal output as shown in Figure 5, first optical sensor 13 converts (OFF) state of cutting out to from original work (ON) state and converts work (ON) state again to, and second optical sensor 14 converts (OFF) state of cutting out to from original work (ON) state.
According to the output signal of optical sensor, export the ON signals because of having only first optical sensor 13, thereby identify 11 propulsions of left gear tooth bar.After one default period, for left gear tooth bar 11 and the heterodromous right gear tooth bar 12 that makes propulsion turns back to initial position, if ac synchronous motor 3 reverse rotations, then left gear tooth bar 11 counter motions, 12 propulsions of right gear tooth bar, thus return to the original state shown in Fig. 2.First optical sensor 13 and second optical sensor 14 start and are in work (ON) state, make ac synchronous motor 3 interrupt runs.
That is to say, operate according to following steps: the signal detection of ac synchronous motor 3 reverse rotation left gear tooth bars 11 counter motions first optical sensor 13 that the signal detection PCB15 of switch AC synchronous motor 3 forward directions rotation left gear tooth bar 11 propulsions first optical sensor 13 of startup refrigerating chamber is other is interrupted ac synchronous motor 3 operations.
3) open the door of refrigerating chamber
When the user wants to open the door of refrigerating chamber, its operating principle is identical with the principle of opening the door of above-mentioned refrigerating chamber, during except ac synchronous motor 3 reverse rotations, right gear tooth bar 12 propulsions (left gear tooth bar 11 counter motions simultaneously), the front end of right gear tooth bar 12 is pushed the door of refrigerating chamber open move to this right gear tooth bar 12 distance, and the state that sticks that makes door go up sealing ring is released (being preliminary door opening state).
As shown in Figure 4, when 11 counter motions of left gear tooth bar, secondary shielding plate 11b departs from second optical sensor 14, and the while first barricade 11a departs from first optical sensor 13 and is positioned at the top of second optical sensor 14.Promptly in the signal output map as shown in Figure 5, second optical sensor 14 is transformed into duty from initial duty, and first optical sensor 13 is transformed into closed condition from initial duty through a closed condition.
Output signal according to optical sensor, because of having only second optical sensor, the 14 output services signal of " opening (ON) ", thereby identify 11 counter motions of left gear tooth bar, and 12 propulsions of right gear tooth bar, after one default period, for the right gear tooth bar 12 that makes heterodromous left gear tooth bar 11 and propulsion turns back to initial position, if the rotation of ac synchronous motor 3 forward directions, then right gear tooth bar 12 counter motions, thus return to original state.First optical sensor 13 and second optical sensor 14 start and are in work (ON) state, make ac synchronous motor 3 interrupt runs.
That is to say, operate according to following steps: other ac synchronous motor 3 forward directions of signal detection PCB15 that start switch AC synchronous motor 3 reverse rotation right gear tooth bars 12 propulsions second optical sensor 14 of refrigerating chamber rotate signal detection interruption ac synchronous motor 3 operations of right gear tooth bar 12 counter motions second optical sensor 14.
As the replacement of above-mentioned optical sensor 13 and 14, can in apparatus of the present invention, use hall switch (hall IC).
Utilize refrigerator door open-close device of the present invention, when opening refrigerator doors, utilize Electromechanically operated pushing, put on atmospheric pressure on the door outward to overcome refrigerator doors, the coherent condition of depressurization circle at first, user's manual unlocking door more then, thus can enough very little power open door swimmingly.
Above-described embodiment of the present invention does not constitute the qualification to protection domain of the present invention.Any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection domain of the present invention.
Claims (1)
1. a refrigerator door open-close device is characterized in that, comprising:
Be arranged at the inboard ac synchronous motor (3) of housing (2), the output shaft gear (4) of described ac synchronous motor (3) is meshed with idle gear (5);
Be arranged at other first gear (6) of described ac synchronous motor (3), this first gear (6) comprises and cogging (6a) and lower gear (6b) that this cog (6a) is meshed with described idle gear (5);
Be arranged at other second gear (7) of described first gear (6), it comprises and cogging (7a) and lower gear (7b) that this lower gear (7b) is meshed with the lower gear (6b) of described first gear (6);
Be arranged at the 3rd gear (8) of described second gear (7) front, it comprises and cogging (8a) and lower gear (8b) that this cog (8a) is meshed with cog (7a) of described second gear (7);
Be relatively arranged on the 4th gear (9) and the 5th gear (10) of described the 3rd gear (8) both sides, described the 4th gear (9) comprises and cogging (9a) and lower gear (9b), described the 5th gear (10) comprises and cogging (10a) and lower gear (10b), the lower gear (8b) of described the 3rd gear (8) and described the 4th gear (9) and the 5th gear (10) separately lower gear (9b) and (10b) be meshed, thereby make described first gear (9) and described the 5th gear (10) reverse rotation each other;
Be arranged at the left gear tooth bar (11) and the right gear tooth bar (12) of described housing (2) two side ends, described left gear tooth bar (11) is meshed with cog (9a) of described the 4th gear (9), described right gear tooth bar (12) is meshed with cog (10a) of described the 5th gear (10), by rotatablely moving of ac synchronous motor (3), described gear (4) to (10) rotatablely moving separately is converted into the rectilinear motion of described left gear tooth bar (11) and described right gear tooth bar (12);
From described left gear tooth bar (11) outstanding first barricade (11a) and secondary shielding plate (11b); And
Be arranged at first optical sensor (13) and second optical sensor (14) on the printed circuit board (PCB) (15), wherein, when described first optical sensor (13) and second optical sensor (14) by described first barricade (11a) and secondary shielding plate (11b) when opening or closing, produce output signal, described left gear tooth bar (11) and right gear tooth bar (12) are according to this output signal and synchronous forward direction, counter motion and stop at original state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201359199U CN201715802U (en) | 2010-02-10 | 2010-02-10 | Opening-closing device for refrigerator door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201359199U CN201715802U (en) | 2010-02-10 | 2010-02-10 | Opening-closing device for refrigerator door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201715802U true CN201715802U (en) | 2011-01-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201359199U Expired - Lifetime CN201715802U (en) | 2010-02-10 | 2010-02-10 | Opening-closing device for refrigerator door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201715802U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061741A (en) * | 2014-06-03 | 2014-09-24 | 合肥美的电冰箱有限公司 | Automatic door opener of refrigerator and refrigerator adopting same |
| JP2015055437A (en) * | 2013-09-13 | 2015-03-23 | 日立アプライアンス株式会社 | Door opening device and instrument having the same |
| CN104457110A (en) * | 2013-09-13 | 2015-03-25 | 日立空调·家用电器株式会社 | Door opener and device having same |
| JP2015068572A (en) * | 2013-09-30 | 2015-04-13 | 日本電産サンキョー株式会社 | Refrigerator |
| JP2015117893A (en) * | 2013-12-19 | 2015-06-25 | 日立アプライアンス株式会社 | Door opening device and apparatus including the same |
| CN105698471A (en) * | 2014-12-10 | 2016-06-22 | 日立空调·家用电器株式会社 | Refrigerator |
| CN107024064A (en) * | 2017-03-07 | 2017-08-08 | 海信（山东）冰箱有限公司 | A kind of throttle setting for refrigerator and refrigerator |
| JP2017215137A (en) * | 2017-08-08 | 2017-12-07 | 日立アプライアンス株式会社 | Door opening device |
| JP2018159542A (en) * | 2018-06-25 | 2018-10-11 | 日立アプライアンス株式会社 | Door opening device |
| CN110006739A (en) * | 2013-08-02 | 2019-07-12 | 三星显示有限公司 | Test equipment for flexible apparatus |
| CN112212594A (en) * | 2019-07-12 | 2021-01-12 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
-
2010
- 2010-02-10 CN CN2010201359199U patent/CN201715802U/en not_active Expired - Lifetime
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006739A (en) * | 2013-08-02 | 2019-07-12 | 三星显示有限公司 | Test equipment for flexible apparatus |
| CN110006739B (en) * | 2013-08-02 | 2021-11-19 | 三星显示有限公司 | Test equipment for flexible devices |
| JP2015055437A (en) * | 2013-09-13 | 2015-03-23 | 日立アプライアンス株式会社 | Door opening device and instrument having the same |
| CN104457110A (en) * | 2013-09-13 | 2015-03-25 | 日立空调·家用电器株式会社 | Door opener and device having same |
| CN104457111A (en) * | 2013-09-13 | 2015-03-25 | 日立空调·家用电器株式会社 | Door opener and device having same |
| CN104457110B (en) * | 2013-09-13 | 2018-02-02 | 日立空调·家用电器株式会社 | Door opener and the equipment for possessing the door opener |
| JP2015068572A (en) * | 2013-09-30 | 2015-04-13 | 日本電産サンキョー株式会社 | Refrigerator |
| JP2015117893A (en) * | 2013-12-19 | 2015-06-25 | 日立アプライアンス株式会社 | Door opening device and apparatus including the same |
| CN104061741B (en) * | 2014-06-03 | 2016-08-17 | 合肥美的电冰箱有限公司 | For the automatic door operator of refrigerator and the refrigerator with it |
| CN104061741A (en) * | 2014-06-03 | 2014-09-24 | 合肥美的电冰箱有限公司 | Automatic door opener of refrigerator and refrigerator adopting same |
| CN105698471A (en) * | 2014-12-10 | 2016-06-22 | 日立空调·家用电器株式会社 | Refrigerator |
| CN105698471B (en) * | 2014-12-10 | 2018-02-02 | 日立空调·家用电器株式会社 | Refrigerator |
| CN107024064A (en) * | 2017-03-07 | 2017-08-08 | 海信（山东）冰箱有限公司 | A kind of throttle setting for refrigerator and refrigerator |
| CN107024064B (en) * | 2017-03-07 | 2019-07-23 | 海信（山东）冰箱有限公司 | A kind of throttle setting for refrigerator and refrigerator |
| JP2017215137A (en) * | 2017-08-08 | 2017-12-07 | 日立アプライアンス株式会社 | Door opening device |
| JP2018159542A (en) * | 2018-06-25 | 2018-10-11 | 日立アプライアンス株式会社 | Door opening device |
| CN112212594A (en) * | 2019-07-12 | 2021-01-12 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| CN112212594B (en) * | 2019-07-12 | 2021-12-21 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110119 |
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| CX01 | Expiry of patent term |