KR20180110379A - The auger motor of ice maker for refrigerator - Google Patents

The auger motor of ice maker for refrigerator Download PDF

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Publication number
KR20180110379A
KR20180110379A KR1020170039807A KR20170039807A KR20180110379A KR 20180110379 A KR20180110379 A KR 20180110379A KR 1020170039807 A KR1020170039807 A KR 1020170039807A KR 20170039807 A KR20170039807 A KR 20170039807A KR 20180110379 A KR20180110379 A KR 20180110379A
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KR
South Korea
Prior art keywords
gear
driving
gears
small
meshing
Prior art date
Application number
KR1020170039807A
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Korean (ko)
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KR101915689B1 (en
Inventor
이재훈
박필기
김진우
Original Assignee
주식회사 오성기전
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Priority to KR1020170039807A priority Critical patent/KR101915689B1/en
Publication of KR20180110379A publication Critical patent/KR20180110379A/en
Application granted granted Critical
Publication of KR101915689B1 publication Critical patent/KR101915689B1/en

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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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C1/00—Producing ice
    • F25C1/22—Construction of moulds; Filling devices for moulds
    • F25C1/25—Filling devices for moulds
    • 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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C5/00—Working or handling ice
    • F25C5/02—Apparatus for disintegrating, removing or harvesting ice
    • F25C5/04—Apparatus for disintegrating, removing or harvesting ice without the use of saws
    • F25C5/046—Ice-crusher machines
    • 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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C5/00—Working or handling ice
    • F25C5/20—Distributing ice
    • F25C5/22—Distributing ice particularly adapted for household refrigerators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Gear Transmission (AREA)

Abstract

The present invention relates to an auger motor for a refrigerator ice maker, comprising: a case (100); A driving motor M provided at one side of the case 100; A driving gear 110 coaxially coupled to an output shaft 112 of the driving motor M; A first gear 120 including a first large gear 122 meshing with the driving gear 110 and a first small gear 124 coaxially coupled to the first large gear 122; A second gear 130 including a second small gear 134 meshing with the first large gear 122 and a second large gear 132 coaxially coupled to the second small gear 134; A third gear 140 meshed with the second small gear 134 and having an output shaft 142 extending from the central axis; And a barrier wall (210, 220) provided at one side of the coupling portion between the gears to allow a grease to remain on one side of the gear.
According to the present invention, grease is not detached from one side of the coupling portion of the gears, and the remaining grease can remain on the coupling portion between the gears, so that the lubricating action of the gear can be maintained for a long time, .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an ice-

The present invention relates to an auger motor of a refrigerator ice maker, and more particularly, to an auger motor of a refrigerator ice maker which is capable of minimizing the generation of noise when feeding or crushing ice in an ice maker of a refrigerator, will be.

Generally, in a small refrigerator, water is manually supplied to an ice-making container provided in a freezing room to make ice, while an ice-making device provided with a separate water-supplying unit is installed in a large refrigerator.

The ice maker includes an ice making assembly having an ice tray for generating ice, an ice bucket for storing the generated ice, and a transfer assembly for transferring the ice stored in the ice bucket to the dispenser. The transport assembly also includes an auger motor as a component driven drive for transporting or crushing ice.

The auger motor is configured to be able to crush ice through a large rotational force by being decelerated through a plurality of driven gears interlocked with a driving pinion gear provided on an input shaft.

However, the auger motor described above has a problem in that noises due to gear engagement are generated in the power transmission process.

Further, there is a problem in that the flow of grease serving as a lubrication proceeds in accordance with the continuous driving, and thereby the service life of the parts is remarkably reduced at any moment.

Korean Patent Publication No. 1659907 Korean Patent Laid-Open Publication No. 2013-0078532

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an auger motor of a refrigerator ice-maker having a gear engagement structure and a lubricating structure capable of minimizing noise during operation and prolonging the life of parts, .

According to an aspect of the present invention, an auger motor of a refrigerator ice maker includes a case; A drive motor provided at one side of the case; A drive gear coaxially coupled to an output shaft of the drive motor; A first gear including a first large gear meshed with the drive gear and a first small gear coaxially coupled with the first large gear; A second gear including a second small gear engaged with the first large gear and a second large gear coaxially coupled with the second small gear; A third gear meshing with the second small gear and having an output shaft extending from the center shaft; And a barrier wall provided at one side of the coupling region between the gears to allow the grease to remain on one side of the gear.

The prevention wall may include a first prevention wall installed at one side of the coupling portion of the driving gear and the first gear; And a second prevention wall provided on one side of the coupling portion of the first gear and the second gear.

The prevention wall is provided on the side where the meshing of the two meshing gears to be meshed with each other is canceled in consideration of the rotational direction of the gear.

According to the auger motor of the refrigerator ice maker according to the present invention, the following effects can be obtained.

In the present invention, the driving gear coupled to the output shaft of the driving motor and the first large gear engaged with the driving gear are formed of helical gears. Therefore, the noise can be minimized compared with the conventional technology which is driven by the spur gear.

In particular, the driving gear that rotates at a high speed and has the largest vibration width and the first large gear that meshes with the driving gear are formed of helical gears, thereby minimizing contact noise between the driving gear and the first large gear and further enhancing reliability of power transmission.

In the present invention, a barrier wall is provided at one side of the gear engagement area so that the grease can not be detached but can remain on the gear engagement area.

Therefore, the lubrication action of the gear can be sustained for a long time, and the noise can be mitigated. In addition, the life of the product can be remarkably increased.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 and FIG. 2 are views showing the construction of an auger motor of a refrigerator ice maker according to an embodiment of the present invention;
3 is a view showing a structure of a driving gear and a first gear according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the auger motor of the refrigerator ice maker according to the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are a perspective view and a front view of the auger motor of the refrigerator ice maker according to the embodiment of the present invention. And Fig. 3 shows an embodiment of the coupling structure of the driving gear and the first gear.

1 and 2, the auger motor of the refrigerator ice maker according to the present invention includes a case 100, a driving motor M, a driving gear 110 coupled to an output shaft 112 of the driving motor M, A first gear 120 meshing with the driving gear 110; A second gear 130 coupled with the first gear 120 and a third gear 140 coupled with the second gear 130 and having an output shaft 142.

The case 100 provides a space for installing the components to be described below, and protects the components from the outside.

The driving motor M is installed on one side of the case 100 and the output shaft 112 protrudes through the one side of the case 100 and into the space inside the case 100. The driving motor M provides rotational force to the ice-making lever, the ice-making lever, and the like of the ice-maker.

A driving gear 110 is coupled to an end of the output shaft 112 of the driving motor M.

The driving gear 110 is coaxially coupled to the output shaft 112. The driving gear 110 is made of a synthetic resin material and is formed of a helical gear.

The drive gear 110 is engaged with the first gear 120.

The first gear 120 includes a first large gear 122 meshing with the drive gear 110 and a first small gear 124 coaxially coupled to the first large gear 122.

Like the driving gear 110, the first large gear 122 is made of a synthetic resin material and is formed of a helical gear. The first large gear 122 includes a greater diameter and a greater number of gears than the driving gear 110 and serves to decelerate the rotational speed transmitted from the driving gear 110.

The first small gear 124 is coupled coaxially with the first large gear 122 and rotates together. As shown in FIG. 3, the first small gear 124 is formed as a spur gear.

The first small gear 124 meshes with the second gear 130.

The second gear 130 includes a second large gear 132 engaged with the first small gear 124 and a second small gear 134 coaxially joined to the second large gear 132 do.

The second large gear 132 is formed of a spur gear and is composed of a larger diameter and a larger number of gears than the first large gear 122 and reduces the rotational speed transmitted from the first gear 120 .

The second small gear 134 is coupled coaxially with the second large gear 132 and rotates together.

And the second small gear 134 meshes with the third gear 140.

The third gear 140 includes a larger diameter gear and a greater number of gears than the second large gear 132 and serves to decelerate the rotational speed transmitted from the second gear 130.

The third gear 140 is provided with an output shaft 142 extending from the central axis.

The output shaft 142 serves to transmit power to the ice-making lever or the ice-making lever of the ice-maker.

On the other hand, anti-blocking walls 210 and 220 are provided at one side of the coupling portion between the gears to prevent grease from remaining. The prevention walls 210 and 220 include a first prevention wall 210 installed on one side of the coupling portion of the driving gear 110 and the first gear 120, And a second barrier wall 220 installed at one side of the coupling portion of the second gear 130.

The prevention walls 210 and 220 are installed to block the open space at one side of the meshing portion between the gears, and form a space in which the grease remains together with the gears.

That is, as shown in FIG. 2, a certain space is formed by the driving gear 110 meshed with each other, and the first gear 120 and the first barrier wall 210. In addition, a certain space is formed by the first gear 120 and the second gear 130 meshing with each other and the second prevention wall 220. And grease is retained in a constant space formed by the gears and the barrier walls (210, 220).

The prevention walls 210 and 220 are installed considering the rotational direction of the gear. Specifically, the first barrier wall 210 is installed on the side where the first drive gear 110 and the first gear 120 are disengaged. The second barrier wall 220 is disposed on the side where the first gear 120 and the second gear 130 are disengaged from each other.

The barrier walls 210 and 220 are formed in an arc shape. The first barrier wall 210 may be formed concentrically with the drive gear 110 and the second barrier wall 220 may be concentric with the second gear 130 .

Hereinafter, the operation of the auger motor of the refrigerator ice maker according to the present invention will be described with reference to the accompanying drawings.

1 and 2, the auger motor of the refrigerator ice maker according to the present invention includes a driving motor M, a driving gear 110 coupled to the output shaft 112 of the driving motor M, A first gear 120 meshing with the first gear 110; A second gear 130 engaged with the first gear 120 and a third gear 140 coupled with the second gear 130 and having an output shaft 142 are sequentially transmitted.

The power output through the output shaft 142 coupled to the third gear 140 is greater than the power output from the drive motor M by the power transmission process.

Here, the first large gear 122, which is engaged with the driving gear 110 and the driving gear 110, is formed of a helical gear so that contact noise can be reduced during operation and reliability of power transmission can be further increased . That is, since the driving gear 110 is connected to the output shaft 112 of the driving motor M so that the rotating speed is high and the vibration width is large, the driving gear 110 and the driving gear 110, The first large gear 122 to be engaged is constituted by a helical gear.

The first small gear 124, the second gear 130, and the third gear 140 have a difficulty in processing and a cost in terms of cost because the first large gear 122 is decelerated and the vibration is greatly mitigated. It may be formed with a lower spur gear.

On the other hand, grease flows together with the rotation of the gears.

The flowed grease is restricted by the prevention walls 210 and 220, and remains at one side of the meshing portion between the gears.

As described above, the prevention walls 210 and 220 are provided on the side where the meshing of the two meshing gears is canceled in consideration of the rotational direction of the gear. That is, the first prevention wall 210 is installed on the side where the first drive gear 110 and the first gear 120 are disengaged, (120) and the second gear (130) are disengaged from each other.

Therefore, the grease which has been moved with the rotating gear is obstructed by the blocking wall and the flow is limited, so that the grease remains on one side of the gear.

In order to facilitate a specific understanding of the anti-grease action by the barrier walls 210 and 220, the action of the second barrier wall 220 will be described with reference to FIG.

First, the grease flows along the rotation direction of the first gear 120, and is blocked by the second barrier wall 220 and does not flow any more. The second barrier wall 220, which has flowed along the rotational direction of the second gear 130, is blocked and no longer flows.

Therefore, the grease continuously stays in the space formed by the first gear 120 and the second gear 130 and the second prevention wall 220, and is prevented from flowing out to another space inside the case .

It is to be understood that the invention is not limited to the disclosed embodiment, but is capable of many modifications and variations within the scope of the appended claims. It is self-evident.

100: Case 110: Drive gear
120: first gear 122: first large gear
124: first small gear 130: second gear
132: second large gear 134: third small gear
140: Third gear 210, 220:
M: drive motor

Claims (3)

A case 100;
A driving motor M provided at one side of the case 100;
A driving gear 110 coaxially coupled to an output shaft 112 of the driving motor M;
A first gear 120 including a first large gear 122 meshing with the driving gear 110 and a first small gear 124 coaxially coupled to the first large gear 122;
A second gear 130 including a second small gear 134 meshing with the first large gear 122 and a second large gear 132 coaxially coupled to the second small gear 134;
A third gear 140 meshed with the second small gear 134 and having an output shaft 142 extending from the central axis;
And a barrier wall (210, 220) provided at one side of the coupling part between the gears, for allowing the grease to remain on one side of the gear. The apparatus of claim 1, wherein the barrier walls (210, 220)
A first prevention wall 210 installed on one side of the coupling portion of the driving gear 110 and the first gear 120;
And a second prevention wall (220) installed at one side of the coupling portion of the first gear (120) and the second gear (130). 3. The apparatus of claim 2, wherein the barrier walls (210, 220)
Wherein the first and second gears are disposed on the side where the meshing of the two gears meshed with each other is canceled in consideration of the rotational direction of the gear.
KR1020170039807A 2017-03-29 2017-03-29 The auger motor of ice maker for refrigerator KR101915689B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020170039807A KR101915689B1 (en) 2017-03-29 2017-03-29 The auger motor of ice maker for refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020170039807A KR101915689B1 (en) 2017-03-29 2017-03-29 The auger motor of ice maker for refrigerator

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KR20180110379A true KR20180110379A (en) 2018-10-10
KR101915689B1 KR101915689B1 (en) 2018-11-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102167156B1 (en) * 2019-09-19 2020-10-16 주식회사 에스 씨디 Geared motor for ice crusher

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4690782B2 (en) * 2005-06-07 2011-06-01 矢崎総業株式会社 Stepping motor and gear train lubrication prevention method
JP2017005839A (en) * 2015-06-09 2017-01-05 日本電産株式会社 Gear box with motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102167156B1 (en) * 2019-09-19 2020-10-16 주식회사 에스 씨디 Geared motor for ice crusher

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