CN1105749A

CN1105749A - Push switch for refrigerator door

Info

Publication number: CN1105749A
Application number: CN 94112873
Authority: CN
Inventors: 金栀泳
Original assignee: Gold Star Co Ltd
Current assignee: LG Electronics Inc
Priority date: 1993-12-30
Filing date: 1994-11-30
Publication date: 1995-07-26
Anticipated expiration: 2014-11-30
Also published as: CN1086467C

Abstract

A pushing switch of a refrigerator door comprises a shell body which is provided with a mesh hook and a mesh protuberance, an elastic rotatable pushing end which is engaged on the shell body and is elastic supported by a spring, a rotating convex cam which is integrated with the pushing end, an inner light end of an end unit and a moving rod of a fan motor end, which alternate the switch along with the rotation of the convex cam and are isolated by an insulation wall.

Description

Push switch for refrigerator door

The present invention relates to the push-on switch of door of refrigerator, this switch is used for lamp and the fan electromotor that is used to make the cold air circulation in the open and close, and interior lamp and fan electromotor are replaced open and close according to the open and close of refrigerator doors.

Push-on switch is operated according to the on off state of door of refrigerator.In general, push-on switch is used for lamp in the open and close and be used to make the fan electromotor of cold air circulation, makes both alternations.In having the refrigerator of this push-on switch, when opening refrigerator doors, interior lamp is lighted, and the fan electromotor of cold air circulation is turned off, and on the other hand, when turning a refrigerator off, interior lamp turn-offs, and makes the fan electromotor energising of cold air circulation simultaneously.

As shown in Figure 1, the refrigerator doors push-on switch of above-mentioned routine comprises that (a) has the housing 10 of mesh hook 11 and engagement projections 12, (b) be engaged to housing 10 and inner to carry out the push side 2 of the reciprocating spring 2a of elasticity resiliency supported by being located at, (c) support rotating rotating cam 3 by the bottom of push side 2, (d) move according to the rotation of rotating cam 3, the inner lamp end 4a in the switch terminal unit 4 also constitutes by the mobile terminal flat board 5 with closed circuit of selecting being connected of power end 4c to replace open and close with fan motor end 4b.

In the refrigerator doors push-on switch of routine, power end 4c links according to the rotation of rotating cam 3 and on the mobile mobile terminal flat board 5.Inner lamp end 4a is connected on the interior lamp in the refrigerator, owing to forming the loop with being connected of power end 4c.On the other hand, in the fan motor end 4b that is connected to power end 4c and the refrigerator fan electromotor of cold air circulation is linked to each other.

As shown in Figure 1, when opening refrigerator doors, moved upward by the push side 2 of spring 2a elasticity support, then, the rotating cam 3 that the bottom is supported turns clockwise because of the motion of push side 2.By the rotation of rotating cam 3, mobile terminal flat board 5 separates with fan motor end 4b and links to each other with inner lamp end 4a, thereby inner lamp end 4a and power end 4c connect and compose the loop, lamp energising in making.On the other hand, when closing refrigerator door as shown in Figure 2, push side 2 moves downward, herein because the motion of push side 2, and the rotating cam 3 inhour rotations of supporting by the bottom.The mobile terminal flat board 5 that links to each other with power end 4c is because of the rotation inhour motion of rotating cam 3, thereby 4a separates with inner lamp end, and 4b links to each other with fan motor end.Therefore, fan motor end 4b and power end 4c are connected to form the loop, make fan electromotor connect power supply, thereby provide cold wind to refrigerator inside.

Yet, in the refrigerator doors push switch of routine,, and be located in the moist refrigerator, so between two ends surge can take place under the long-term situation about using because the inner lamp end and the fan motor end that are engaged in the refrigerator shell are adjacent one another are at uninsulated state.In addition, because the connection power end selectively meshes with housing with folded state to the mobile terminal flat board of inner lamp end or fan motor end, so press owing to the size of operating error according to angle folding changes in the contact of contact point, thereby cause the bad connection in the initial connection status.In addition, when using for a long time, the folding part branch of mobile terminal flat board damages because of institute's plus-pressure.

The push-on switch that the purpose of this invention is to provide a kind of refrigerator doors, with under the medium-term and long-term situation about using of wet environment, prevent the surge that takes place between the abutting end, with because bad connection that operating error causes, and the permanent deviation that constitutes the mobile flat board in loop selectively.

Push-on switch according to door of refrigerator of the present invention, comprise housing with mesh hook and engagement projections, be engaged to housing and by the spring support to carry out the push side that elasticity is rotated, form the rotatable rotating cam of one with push side, with rotation campaign, and alternately switch the inner lamp end of the end unit of isolating mutually and the carriage release lever of fan motor end by insulation wall according to rotating cam.

Fig. 1 is the cutaway view of the push-on switch of the refrigerator doors of routine when opening refrigerator doors;

Fig. 2 is the cutaway view of the push-on switch of the refrigerator doors of routine when refrigerator doors is shut;

Fig. 3 is when opening refrigerator doors, according to the cutaway view of the push-on switch of refrigerator doors of the present invention, (a) is the view from seeing previously, (b) view for seeing from behind;

Fig. 4 is for when refrigerator doors is shut, according to the cutaway view of the push-on switch of refrigerator doors of the present invention.

Below in conjunction with accompanying drawing most preferred embodiment of the present invention is described.

As Fig. 3 (a) with 3(b), refrigerator doors push-on switch according to the present invention comprises the housing 10 with mesh hook 11 and engagement projections 12, be engaged on the housing 10 and by spring 21 elasticity supports to carry out the push side 20 that elasticity is rotated, form the rotating rotating cam 30 of one with push side 20, with the rotation campaign according to cam, alternately open and close are by the inner lamp end 41 of the end unit 40 of insulation wall A isolation and the carriage release lever 50 of fan motor end 42.

The inner lamp end 41 and the fan motor end 42 of end unit 40 are isolated from each other by insulation wall A.Inner lamp end 41 comprises stiff end 41a, is fixed on bottom and the mobile terminal 41b of insulation wall A, is located at the bottom of stiff end 41a.Fan motor end 42 comprises the stiff end 42a that is fixed on insulation wall A top and is located at the mobile terminal 42b on stiff end 42a top.Mobile terminal 41b and 42b move simultaneously with carriage release lever 50.

In above-mentioned end unit 40, the inner lamp end 41 that is formed on insulation wall A bottom is linked on the interior lamp of refrigerator.The fan motor end 42 that is formed on insulation wall A top is connected on the fan electromotor that makes the cold air circulation in the refrigerator.

Carriage release lever comprises whole upper process 51 and the lower process 52 that moves.Upper and lower projection 51 and 52 is supported downwards the mobile terminal 42b of the fan motor end 42 that is separated from each other by insulation wall and the mobile terminal 41b of inner lamp end 41 respectively, and promotes mobile terminal 41b and 42b simultaneously.

When opening refrigerator doors as Fig. 3 (a) with 3(b), the push side of being supported by spring 21 elasticity 20 upwards rotates, and the rotating cam 30 that constitutes one with it also rotates with the rotation of push side 20.Carriage release lever 50 upwards rotates with the rotation of rotating cam 30, thereby the mobile terminal 42b of fan motor end 42 and the mobile terminal 41b of inner lamp end 41 move upward respectively.So, forming the loop at inner lamp end 41 places that are located at insulation wall A bottom, interior lamp is lighted, and simultaneously, forms open circuit at fan motor end 42 places on insulation wall A top, and the fan electromotor of cold air circulation is de-energized.

As shown in Figure 4, when closing refrigerator door, push side 20 rotates, and rotating cam 30 also rotates with the rotation of push side 20.Carriage release lever 50 rotates with the rotation of rotating cam 30, and the mobile terminal 41b of the mobile terminal 42b of fan motor end 42 and inner lamp end 41 also moves downward respectively.Thereby, form open circuit at inner lamp end 41 places that are located at insulation wall A bottom, thereby lamp in judging forms the loop at fan motor end 42 places that are located at insulation wall A top simultaneously, thereby connect fan electromotor, provide cold wind to refrigerator inside.

As mentioned above, because the inner lamp end and the fan motor end of end unit be separated from each other by insulation wall, so can prevent the surge that between the adjacent both ends of wet environment is medium-term and long-term when using routine, takes place.Promote the inner lamp end that is separated from each other by insulation wall and the mobile terminal of fan motor end owing to be pushed the upper and lower projection of the carriage release lever that pressure side rotates again, so the bad connection and the function reduction that cause by the dull and stereotyped operating error of selecting to form the loop in the mobile terminal of routine, and all can prevent by the caused fault of folded part pressure.

Though illustrate here and described a specific embodiment of the present invention, will be appreciated that those skilled in the art also can make modifications and variations.Therefore, should understand claims and be intended to cover all changes and the modification that drops in practicalness of the present invention and the scope.

Claims

1, the push-on switch of door of refrigerator comprises:

Housing with mesh hook and engagement projections;

Be engaged on the described housing and support by spring, but push side that elasticity is rotated;

By the rotating cam of described push side rotation, and

According to the rotation campaign of described rotating cam, replace the carriage release lever of open and close inner lamp end and fan motor end.

2, push-on switch according to claim 1, wherein said inner lamp end and described fan motor end are separated from each other by insulation wall, described inner lamp end and described fan motor end comprise and are separately fixed at the stiff end on the described insulation wall upper and lower part and are located at mobile terminal on the described stiff end upper and lower part respectively to move simultaneously with described carriage release lever in described mobile terminal.

3, push-on switch according to claim 1, wherein said carriage release lever comprises whole upper process and the lower process that moves, described upper and lower projection is supported the mobile terminal of the fan motor end of being isolated mutually by described insulation wall and the mobile terminal of inner lamp end downwards respectively, and promotes described mobile terminal simultaneously.