CN102564010A - Adjusting device for air door of refrigerator - Google Patents

Adjusting device for air door of refrigerator Download PDF

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Publication number
CN102564010A
CN102564010A CN2012100559488A CN201210055948A CN102564010A CN 102564010 A CN102564010 A CN 102564010A CN 2012100559488 A CN2012100559488 A CN 2012100559488A CN 201210055948 A CN201210055948 A CN 201210055948A CN 102564010 A CN102564010 A CN 102564010A
Authority
CN
China
Prior art keywords
refrigerator
shaft center
door
air door
wax motor
Prior art date
Application number
CN2012100559488A
Other languages
Chinese (zh)
Inventor
张炳圣
祝玉方
Original Assignee
镇江市松协电器有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 镇江市松协电器有限公司 filed Critical 镇江市松协电器有限公司
Priority to CN2012100559488A priority Critical patent/CN102564010A/en
Publication of CN102564010A publication Critical patent/CN102564010A/en

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Abstract

The invention provides an adjusting device for an air door of a refrigerator. The adjusting device comprises a door plate, a rotary shaft center, a wax motor system and a gear train. The door plate and the rotary shaft center are connected with each other and placed in an air channel of the refrigerator, the door plate can close and open the air channel along with rotation of the rotary shaft center, and the rotary shaft center, the gear train and the wax motor system are sequentially connected. The gear train consists of a driving gear and a driven gear which are meshed with each other, diameters of the driving gear and the driven gear are sequentially increased, the wax motor system comprises a wax motor, a return spring and a rack, and the rack is meshed with the driving gear. By the aid of the adjusting device, high torque of the door plate can be outputted, the door plate can be assuredly normally opened even if the door plate is frozen, and the adjusting device is simple in structure, low in cost, high in reliability and low in noise.

Description

The refrigerator regulating device of air door

One, technical field

The present invention relates to a kind of throttle setting, especially a kind of throttle setting that is used for the control of refrigerator cold wind, regulates.

Two, background technology

Present refrigerator major part belongs to the freezing and refrigeration type; Have refrigerating chamber and refrigerating chamber simultaneously because the refrigerating chamber and the refrigerating chamber temperature difference are bigger; Must between be installed by an air door; Be used to regulate the air quantity that refrigerating chamber gets into refrigerating chamber, keeping the temperature of refrigerating chamber, so the design of air door can directly have influence on the fresh-keeping effect and the electric energy efficiency of refrigerating chamber.

More widely used is MOD; The MOD type of drive adopts alternating current generator or stepper motor as power part both at home and abroad at present; Through a series of gear drive in centre; Rotatablely moving of motor is delivered to air door door-plate rotary main shaft the most at last, realizes closing and opening action of door-plate.The patent No. is that the patent of 02221030.X discloses this MOD.The defective of this MOD is: because the temperature of refrigerating chamber is lower, there is the state of freezing in air door, because the input torque that produces is less, can have the air door door-plate possibility of not opening.In the prior art,, heater need be installed separately in order to remedy this defective.When using alternating current generator as power part, air door also need have sensor elements such as microswitch, sense reed pipe, with output signal recognitiion gate board status.Because part is more, so cost is higher relatively, the control system complex.Simultaneously, when the moving row of power part, noise can rotate.

Three, summary of the invention

It is lower that the technical problem that the present invention will solve provides a kind of cost, and the control system is simple, the refrigerator regulating device of air door that noise is little.This refrigerator regulating device of air door is made up of wax motor, gear, wax motor driving gear motion, and then the rotating shaft central motion that is connected with gear of drive, and the feasible air door door-plate that is connected with the rotating shaft center can cut out and open.

Technical solution proposed by the invention is:

A kind of refrigerator regulating device of air door; Form by door-plate, rotating shaft center, driving mechanism, transmission mechanism; Said door-plate and rotating shaft center are connected and place the air channel of refrigerator; Airtight and the unlatching air channel along with the rotation at rotating shaft center, rotating shaft center, transmission mechanism, driving mechanism connect successively, and described driving mechanism is made up of the wax motor system.

Foregoing refrigerator regulating device of air door, said wax motor system is made up of back-moving spring, tooth bar, and back-moving spring is fixed in the wax motor and is connected with tooth bar.

Foregoing refrigerator regulating device of air door, said transmission mechanism are and tooth bar pitch wheel group.

Foregoing refrigerator regulating device of air door, said gear train comprise a gear.

Foregoing refrigerator regulating device of air door, said gear train comprise a driving wheel, a follower, and wherein driving wheel is meshed with said tooth bar, and follower is meshed with driving wheel and is fixed in the rotating shaft center.

Foregoing refrigerator regulating device of air door, the diameter of said follower is greater than the diameter of driving wheel.

Compared with prior art, the present invention has following beneficial effect:

1, this device uses wax motor parts that are used as power, and the rectilinear motion of motor is converted into spinning movement through pinion and rack, and drives the door-plate rotary main shaft, realizes closing and opening action of door-plate.After the energising of wax motor, realize the opening action of door-plate; After the outage, rely on the self-characteristic of motor, realize closing of door-plate.

2, the opening and closing action that can control the air door door-plate through the energising and the outage of wax motor does not need extra sensor recognitiion gate board status.

3, the powerful thrust that provides through the wax motor realizes the output of door-plate high pulling torque, even under the state that door-plate freezes, can guarantee that also door-plate normally opens, and simple in structure, and cost is low, reliability is high.

4, the wax motor is accomplished through expanding with heat and contract with cold of its inner wax and self is collapsed, and noise therefore can not rotate.

Four, description of drawings

Fig. 1: the door-plate closed condition sketch map of one embodiment of the invention.

Fig. 2: the door-plate opening sketch map of one embodiment of the invention.

Five, the specific embodiment

Through following examples the present invention is done further to set forth in detail.

One embodiment of the present of invention like Fig. 1-2; This refrigerator regulating device of air door; Form by door frame 1, door-plate 5, rotating shaft center 2, wax motor system, a gear train; Gear train is meshed by a driving wheel 4 and a follower 3 and forms, and the direction of motion of two gears is opposite, and the diameter of follower 3 is greater than the diameter of driving wheel 4.Door-plate 5 places the air channel of refrigerator, and is fixed on the door frame 1 through rotating shaft center 2, door-plate 5 can be along with the rotation at rotating shaft center 2 airtight with open the air channel.The end at rotating shaft center 2 is fixedly connected with the follower of gear train 3, and the driving wheel 4 of gear train is connected with the wax motor system.The wax motor system comprises wax motor 8, back-moving spring 7 and tooth bar 6, and its middle rack 6 is meshed with the driving wheel 4 of gear train.

During energising, the wax expanded by heating that the wax motor is inner promotes back-moving spring 7 and moves upward; And then drive tooth bar 6 moves upward; The driving wheel 4 that be meshed with tooth bar 6 this moment moves in the direction of the clock, presses motion counterclockwise with the follower 3 of driving wheel 4 engagements, drives the rotating shaft centers of fixing with follower 32 and rotates; The final door-plate 5 that drives is done motion counterclockwise, thereby door-plate 5 is opened.Because the diameter of follower 3 is greater than the diameter of driving wheel 4; Even then the tooth bar 6 of wax motor upwards produces a very little displacement; Also can make follower 3 produce a bigger moment of torsion, thereby door-plate 5 is produced a bigger active force, even like this under the state that door-plate 5 freezes; Can guarantee that also door-plate 5 normally opens, and structure is compared with prior art fairly simple.Adopt gear train to have more advantage than an independent gear as transmission mechanism; Receive wax motor travel limits; Like direct tooth bar 6 and gear 3 engagements, the rotational angle that door-plate 5 is realized is less, and if in the middle of tooth bar 6 and gear 3, increase a gear 4; Through changing the number of teeth of gear 4, can realize rotational angle and rotary speed that door-plate 5 is bigger.The ratio of driving wheel 4 and follower 3 diameters can be set according to the space size and the watt level of refrigerator.

During outage, the motion of wax motor system and gear train is just opposite with when energising.At first the wax of wax motor 8 inside is cold moving, the pressure step-down, and back-moving spring 7 does to reset motion downwards, and tooth bar 6 moves downward, and finally drive door-plate 5 and move clockwise, thus door-plate 5 closures.

Claims (6)

1. refrigerator regulating device of air door; Form by door-plate, rotating shaft center, driving mechanism, transmission mechanism; Said door-plate and rotating shaft center are connected and place the air channel of refrigerator; Airtight and the unlatching air channel along with the rotation at rotating shaft center, rotating shaft center, transmission mechanism, driving mechanism connect successively, it is characterized in that: described driving mechanism is made up of the wax motor system.
2. refrigerator regulating device of air door according to claim 1 is characterized in that: said wax motor system is made up of back-moving spring, tooth bar, and back-moving spring is fixed in the wax motor and is connected with tooth bar.
3. refrigerator regulating device of air door according to claim 2 is characterized in that: said transmission mechanism is and tooth bar pitch wheel group.
4. refrigerator regulating device of air door according to claim 3 is characterized in that: said gear train comprises a gear.
5. refrigerator regulating device of air door according to claim 3 is characterized in that: said gear train comprises a driving wheel, a follower, and wherein driving wheel is meshed with said tooth bar, and follower is meshed with driving wheel and is fixed in the rotating shaft center.
6. refrigerator regulating device of air door according to claim 5 is characterized in that: the diameter of said follower is greater than the diameter of driving wheel.
CN2012100559488A 2012-03-06 2012-03-06 Adjusting device for air door of refrigerator CN102564010A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012100559488A CN102564010A (en) 2012-03-06 2012-03-06 Adjusting device for air door of refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012100559488A CN102564010A (en) 2012-03-06 2012-03-06 Adjusting device for air door of refrigerator

Publications (1)

Publication Number Publication Date
CN102564010A true CN102564010A (en) 2012-07-11

Family

ID=46410112

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012100559488A CN102564010A (en) 2012-03-06 2012-03-06 Adjusting device for air door of refrigerator

Country Status (1)

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CN (1) CN102564010A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104990338A (en) * 2015-07-30 2015-10-21 宁波爱姆优东海精工电器有限公司 Air door structure used for refrigerator
CN105546095A (en) * 2016-03-08 2016-05-04 江苏凯德电控科技有限公司 Rotating limiting structure of automatic ice discharging device output gear

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2249885Y (en) * 1995-11-24 1997-03-19 贺玉强 Point contact automatic opening mechanism of refrigerator door
JPH11153379A (en) * 1997-09-08 1999-06-08 Daewoo Electron Co Ltd Door opening closing device for refrigerator
CN2419556Y (en) * 2000-04-28 2001-02-14 佛山通宝股份有限公司 Stepped electric vent door for refrigerator
CN2549408Y (en) * 2002-06-03 2003-05-07 张炳圣 Airing opening of refrigerator
CN1455215A (en) * 2002-05-01 2003-11-12 株式会社三协精机制作所 Motor-type air door
CN1789850A (en) * 2004-12-14 2006-06-21 海尔集团公司 Air inlet baffle and air outlet baffle driving device for air conditioner
CN101173463A (en) * 2006-10-31 2008-05-07 海尔集团公司;青岛海尔洗衣机有限公司 Air outlet structure of air conditioner of heat pump laundry dryer
CN101185567A (en) * 2006-11-15 2008-05-28 海尔集团公司;青岛海尔洗碗机有限公司 Dishwasher air-out mechanism driving device
CN201273660Y (en) * 2008-08-08 2009-07-15 苏州三星电子有限公司 Automatic door regulating apparatus for vertical cabinet air-conditioner
CN202494257U (en) * 2012-03-06 2012-10-17 镇江市松协电器有限公司 Refrigerator ventilation door adjusting device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2249885Y (en) * 1995-11-24 1997-03-19 贺玉强 Point contact automatic opening mechanism of refrigerator door
JPH11153379A (en) * 1997-09-08 1999-06-08 Daewoo Electron Co Ltd Door opening closing device for refrigerator
CN2419556Y (en) * 2000-04-28 2001-02-14 佛山通宝股份有限公司 Stepped electric vent door for refrigerator
CN1455215A (en) * 2002-05-01 2003-11-12 株式会社三协精机制作所 Motor-type air door
CN2549408Y (en) * 2002-06-03 2003-05-07 张炳圣 Airing opening of refrigerator
CN1789850A (en) * 2004-12-14 2006-06-21 海尔集团公司 Air inlet baffle and air outlet baffle driving device for air conditioner
CN101173463A (en) * 2006-10-31 2008-05-07 海尔集团公司;青岛海尔洗衣机有限公司 Air outlet structure of air conditioner of heat pump laundry dryer
CN101185567A (en) * 2006-11-15 2008-05-28 海尔集团公司;青岛海尔洗碗机有限公司 Dishwasher air-out mechanism driving device
CN201273660Y (en) * 2008-08-08 2009-07-15 苏州三星电子有限公司 Automatic door regulating apparatus for vertical cabinet air-conditioner
CN202494257U (en) * 2012-03-06 2012-10-17 镇江市松协电器有限公司 Refrigerator ventilation door adjusting device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104990338A (en) * 2015-07-30 2015-10-21 宁波爱姆优东海精工电器有限公司 Air door structure used for refrigerator
CN104990338B (en) * 2015-07-30 2018-08-31 宁波爱姆优东海精工电器有限公司 A kind of air door structure of refrigerator
CN105546095A (en) * 2016-03-08 2016-05-04 江苏凯德电控科技有限公司 Rotating limiting structure of automatic ice discharging device output gear
CN105546095B (en) * 2016-03-08 2017-09-05 江苏凯德电控科技有限公司 Automatically the rotary position limiting structure of ice device output gear is gone out

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Application publication date: 20120711