CN2426508Y

CN2426508Y - Automatic opening device for refrigerator door

Info

Publication number: CN2426508Y
Application number: CN 00220632
Authority: CN
Inventors: 王应民; 李毅; 夏天
Original assignee: Hefei Meiling Co ltd
Current assignee: Hefei Meiling Co ltd
Priority date: 2000-06-09
Filing date: 2000-06-09
Publication date: 2001-04-11
Anticipated expiration: 2010-06-09

Abstract

The utility model relates to an automatic opening device for a refrigerator door, which aims to move in fit type through a light touching switch arranged on a door body and an electromagnetic valve on a tank body. The utility model comprises an electromagnetic coil arranged in the tank body. The light touching switch arranged on the refrigerator door is connected with the electromagnetic coil through a conducting wire, and a valve rod-shaped electromagnetic armature and the electromagnetic coil form the slide fit. A rod body of the tail section of the electromagnetic armature is provided with a return spring, and the front end is provided with a yielding rubber cushion. When having articles on both hands and also wanting to open the door, the people opening the door just need to use other parts of the bodies, such as hand backs, arm elbows, etc., to lightly touch the light touching switch of the door, and consequently the electromagnetic devices are controlled to automatically open the door.

Description

The door of refrigerator automatic open device

The utility model relates to the refrigerator field, specifically is the opening device of door of refrigerator.

At present, on the door that sell on the market or the refrigerator that people use, various informative door handle is housed all generally.People must pull at door handle with a hand when opening door of refrigerator, when used power greater than the door sealing magnetic stripe during to the suction of door of refrigerator steel plate, door promptly is opened.When two hands have all been held article, just door of refrigerator can't be opened.

Chinese patent literature 98252052.2 discloses a kind of door of refrigerator electromagnetism opening device, its technical scheme owing to consider open the door need be bigger this factor of electromagnetic impact, can't realize its purpose of design stably of opening the door during actual the use.Simultaneously because this impact force is bigger, and also can shorten greatly the application life of its structure, and noise is bigger when using, and the process of generally opening the door is exactly the process of hitting door.Chinese patent literature 99,201,751 3 discloses a kind of electromagnetic pneumatic damping opening device for electric refrigerator, though the impact that this scheme causes in the time of can avoiding such scheme to open the door by the air damping device, but because the structure of himself is limit, reaction speed is slower, use the hand Push switch when opening the door, the door body is pushed open by piston rod lentamente; At closing time, wait for that piston rod resets lentamente.

To be that design is a kind of overcome above-mentioned the deficiencies in the prior art to the purpose of this utility model, need not manually firmly door to be opened but realize opening the door automatically by the touch-switch and the electromagnetic valve interoperation on the casing that are loaded on the body.

For achieving the above object, the technical solution adopted in the utility model is: a kind of door of refrigerator automatic open device is characterized in that: refrigerator body is provided with a device case, is provided with an electromagnetic coil in it, is controlled by lead by computer controller; The external surface of refrigerator doors is provided with a touch-switch, exports the control signal of opening the door by lead to computer controller; The middle part of the electromagnet armature of valve rod shape is positioned at above-mentioned electromagnetic coil and can constitutes with it and is slidingly matched, be arranged with back-moving spring and the buffer spring of being located at its rear portion on the rear shaft of electromagnet armature, the front end of electromagnet armature is provided with buffer rubber gasket, it can be in electromagnet armature stretch out with portal bracing open, electromagnet armature withdrawal back balance and three kinds of states of door of refrigerator hermetically closing.

As shown from the above technical solution, be provided with the calutron that is provided with on a touch-switch and the casing on the external surface of refrigerator door, when door opener's two hand ends have article to open the door again, the touch-switch that is provided with on the external surface of a body is touched at other positions of health such as the only with hand back of the body, elbow, enabling signal is passed to computer controller by lead, automatically door is opened by the calutron that is provided with on its control casing again.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2, the 3rd, door of refrigerator be in close, the schematic diagram of opening;

Fig. 4 is that K among Fig. 2 is to view.

Below in conjunction with drawings and Examples the utility model is further described.

Embodiment

Referring to Fig. 1,2,3,4, be provided with a device case 30 in the foaming layer of refrigerator body 10, be provided with an electromagnetic coil 40 in it, link to each other with computer main controller by lead, the external surface of refrigerator doors 20 is provided with a touch-switch 80, also link to each other with computer main controller by lead, the middle part of the electromagnet armature 50 of valve rod shape is positioned at above-mentioned electromagnetic coil 40, between electromagnet armature 50 and the electromagnetic coil 40 for being slidingly matched, be arranged with back-moving spring 60 on the rear shaft of electromagnet armature 50, back-moving spring 60 is a stage clip, the rear portion of electromagnet armature 50 is provided with buffer spring 70, the front end of electromagnet armature 50 is provided with buffer rubber gasket 51, and it can be in electromagnet armature 50 and stretch out portal bracing is opened, three kinds of states of electromagnet armature 50 withdrawal back balances and refrigerator doors 20 hermetically closings.

Be provided with buffer rubber gasket 21 with the refrigerator doors 20 of described buffer rubber gasket 51 corresponding positions, electromagnet armature 50 stretches out the length of refrigerator door, long under than refrigerator doors 20 closed conditions under the equilibrium state after the withdrawal, like this, when guaranteeing that refrigerator door is closed, buffer rubber gasket 51 is closely conflicted together with buffer rubber gasket 21, the impact of 50 pairs of refrigerator doors of electromagnet armature when having avoided opening the door automatically, a body is gently opened, so not only helped opening the door action response rapidly, but also to help refrigerator doors 20 hermetically closings in good condition.At electromagnet armature 50

The tail end face place is provided with buffer spring 70, buffer spring 70 is a torsion spring, its two arm is resisted against respectively on the tail end face of the inwall of housing 30 and electromagnet armature 50, opposite with 60 the force direction of resetting, its size is enough to offset the elastic force of back-moving spring 60 when resetting, and, door is closed freely less than the magnetic attraction of gasket 90.

Below in conjunction with the Brief Description Of Drawings course of work of the present utility model;

Touch touch-switch 80, enabling signal is passed to computer controller through lead, get by its control electromagnetic coil 40 again, and overcome the elastic force adhesive electromagnet armature 50 of back-moving spring 60, electromagnet armature 50 in electromagnetic coil 40 to the side shifting at refrigerator doors 20 places, buffer rubber gasket 51 will promote the buffer rubber gasket 21 that refrigerator doors 20 is provided with, thereby refrigerator doors 20 is opened, after refrigerator doors 20 is opened, computer controller is controlled electromagnetic coil 40 dead electricity immediately, under the effect of the elastic force of back-moving spring 60, electromagnet armature 50 contracts to recovery, in the process that contracts to recovery, when the tail end face of electromagnet armature 50 touches buffer spring 70, buffer spring 70 begins to work, thereby avoided opening and the generation of impact phenomenon during retraction.Under the double action of back-moving spring 60 and buffering spring 70, electromagnet armature 50 finally reaches the equilbrium position, at this moment, the length a that electromagnet armature 50 stretches out among Fig. 1 is the distance b between buffer rubber gasket 21 and the refrigerator doorframe when refrigerator doors is closed among Fig. 2, and the elastic force of buffer spring 70 is less than the suction of gasket 90, and buffer rubber gasket 21 tightly touches with buffer rubber gasket 51 again when guaranteeing that refrigerator doors is closed.

Claims

1. door of refrigerator automatic open device, it is characterized in that: refrigerator body (10) is provided with a device case (30), being provided with an electromagnetic coil (40) in it links to each other with computer controller via lead, the external surface of refrigerator doors (20) is provided with a touch-switch (80), exports the control signal of opening the door by lead to computer controller; The middle part of the electromagnet armature of valve rod shape (50) is positioned at above-mentioned electromagnetic coil (40) and can constitutes with it and is slidingly matched, be arranged with back-moving spring (60) on the rear shaft of electromagnet armature (50) and be located at the buffer spring (70) at its rear portion, the front end of electromagnet armature (50) is provided with buffer rubber gasket (51), it can be in electromagnet armature (50) stretch out with portal bracing open, electromagnet armature (50) withdrawal back balance and three kinds of states of refrigerator doors (20) hermetically closing.

2. door of refrigerator automatic open device according to claim 1, it is characterized in that: be provided with buffer rubber gasket (21) with the refrigerator doors (20) of described buffer rubber gasket (51) corresponding position, buffer spring (70) is a torsion spring, and its two arm is resisted against respectively on the tail end face of the inwall of housing (30) and electromagnet armature (50).