KR100809357B1 - Door lock device of home appliance - Google Patents

Abstract

The present invention relates to a door lock device for locking and releasing a door of a home appliance, and more particularly, a slide moved from side to side by retracting a latch, and a protruding piece having a predetermined inclination angle and protruding from the slide. The contact stick is moved up and down in contact with a certain inclination angle, and the other side of the contact stick is in contact with the primary contact point to conduct the primary contact and operate the solenoid operated according to the input of the electrical signal to the operation of the solenoid. It is composed of a moving cam which is moved up and down by a protrusion and a protrusion provided on the side end of the mobile cam to conduct the secondary contact end.

According to the present invention, as the slide is moved by the insertion of the latch, the contact stick is moved to make the primary contact, and the primary contact can be determined whether the door is closed, and the movement cam moves by the operation of the solenoid. The home contact is made of a car contact, and the internal structure is simple and the malfunction of the home appliance can be prevented by a reliable contact.

Then, the slide can be prevented by the extension shaft of the mobile cam to prevent the latch from being released, thereby preventing the door from being opened, and the mobile cam can be forcibly returned in the emergency to release the latch.

Description

A door-lock equipment of an electric household appliance

The present invention relates to a door lock device for locking and releasing a door of a home appliance, and more particularly, a slide moved from side to side by retracting a latch, a protrusion protruding from the slide and having a side surface having a constant inclination angle, The contact stick which moves up and down in contact with a predetermined inclination angle of the protruding piece and the other side of the contact stick are in contact with the primary contact point to conduct the primary contact and operate a solenoid operated according to the input of an electrical signal. It is composed of a mobile cam moved up and down by a projecting portion, and a projecting portion protruding to the side end of the mobile cam to conduct a secondary contact end portion, an emergency lever forcibly returning the mobile cam in case of an emergency.

Contact methods for operating the home appliance by closing the door in the home appliance is a well-known technique.

A device for detecting a closed state of a door or a device for preventing a door from being forcibly opened or stopping the operation of the home appliance when the door is opened due to abnormal external pressure while the home appliance is in operation is well known and developed. .

Among household appliances, especially water-using devices, such as a washing machine, a dishwasher, a dryer, and the like, the above-mentioned appliances do not open when the appliance is in operation. Home appliances must be stopped to ensure user safety.

Therefore, if the door is closed and the home appliance is switched to the standby state by detecting the closed state of the door, if the signal to operate the home appliance is detected by the user's operation, the door should not be opened. If the door is opened, the appliance should stop working immediately.

The door lock device of a general household appliance is configured to detect a closed state of the door to switch the household appliance to a standby state and close the door by an operation signal of the household appliance.

These home appliances are accompanied by a lot of vibration, the device that detects the closed state of the door, or the device that prevents the door from opening when the home appliance is in operation frequently occurs.

In addition, such a device has a complicated internal configuration and difficult to assemble, the problem is difficult to repair if an abnormality is found.

In order to solve the above problems, the present invention provides a slide sticking to the left and right by a retracting of the latch and is installed to protrude on the slide and the side of the contact stick moving along the constant inclination angle of the protruding piece using a protruding piece having a constant inclination angle And, the other side of the contact stick is in contact with the primary contact end to set the operation standby state of the home appliance according to the insertion of the latch fixed to the door, and the mobile cam moved up and down by the operation of the solenoid It is configured to protrude to the side end of the mobile cam to conduct the secondary contact end to constitute a prolonged axis of the mobile cam is configured to be inserted into the bent inside of the slide to secure the slide.

Therefore, if the above configuration is described in detail by the object of the present invention,

In the door lock lock,

The operation contact part 500 and the solenoid 300 and the solenoid contact part 310 applied to the solenoid 300 are installed, and a housing 10 having an opening through which the latch 20 is inserted; A slide 300 having a portion and communicating with an opening through which the latch 20 is introduced, having a latch inlet 120, having a predetermined inclination angle on one surface thereof, and having a protrusion 110 protrudingly installed; and the protrusion piece 110. It is moved to the left and right along a constant inclination angle of the projecting piece 110 is supported by the elastic spring 210 so that it is always in contact with a constant inclination angle and the other side is in contact with the primary contact terminal 502 is the primary by the left and right movement A contact stick 200 having a contact terminal 502 and a primary fixed terminal 501 short-circuited; and a flanger 320 which is pulled in and drawn out by a power applied to the solenoid 300 and the flanger 320. The mobile cam 400 is moved by the operation of; and On one side of the mobile cam 400, a locking portion 430 protruding from the secondary contact terminal 504 is provided, and the slide 100 is moved by the insertion of the latch 20, and the slide ( The contact stick 200, which is in contact with a predetermined inclination angle of the protruding piece 110 by the movement of 100, is pushed by the elastic spring 210 to connect the primary contact terminal 502 and the primary fixed terminal 501, The flanger 320 is operated by the power applied to the solenoid contact portion 310 so that the secondary fixed terminal 503 is connected to the secondary contact terminal 504 by the movement of the mobile cam 400.

Preferably, the projection 401 is formed at the rear of the mobile cam 400, the groove is provided to the outer circumference of the projection 401 is installed on the rear side of the mobile cam 400 to be rotatable A fixed cam 410; and one surface of the position fixing cam 410 and one surface of the housing 10 are provided with a torsion spring 411, so that the fixed cam 410 must be prevented from rotating below a certain force.

In addition, the extension shaft 420 of the movable cam 400 is inserted into the predetermined bent portion of the slide 100 moved by the insertion of the latch 20 to interrupt the flow of the slide 100.

In addition, in the event of a power failure or abnormality during operation of the home appliance, the mobile cam 400 is forcibly returned from the latch 20 so that the recess 440 is formed at the side end of the mobile cam 400. The body is fitted into the tension spring 601 is installed on the inner surface of the housing 10 is installed coupled to the end of the body to form a handle 610 and the handle 610 is installed to be exposed to the outside of home appliances Emergency lever 600 should be further installed.

According to the present invention, as the slide is moved by the insertion of the latch, the contact stick is moved to make the primary contact, and the primary contact can be determined whether the door is closed, and the movement cam moves by the operation of the solenoid. The home contact is made by the car contact, and the internal structure is simple, and the malfunction of the home appliance can be prevented by the reliable contact.

Then, the slide can be prevented by the extension shaft of the mobile cam to prevent the latch from being released, thereby preventing the door from being opened, and the mobile cam can be forcibly returned in the emergency to release the latch.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, each device that is operated and moved has been described as left, right, up, and down in the drawings, but this is by way of movement for ease of explanation and easy understanding. The scope of the present invention should not be reduced.

1 and 2 respectively show a plan view and a perspective view of the door lock device according to the present invention.

Looking at the configuration according to the invention,

A housing 10 having an operation contact part 500, a solenoid 300, and a solenoid contact part 310 applied to the solenoid 300, and having an opening through which the latch 20 is inserted;

A slide 300 having a predetermined bent portion and communicating with an opening through which the latch 20 is introduced, having a latch inlet 120, having a predetermined inclination angle on one surface thereof, and having a protruding piece 110 protrudingly installed;

It is moved up and down along the inclined angle of the protrusion piece 110, but is supported by the elastic spring 210 so as to always contact the inclined angle of the protrusion piece 110, the other side is in contact with the primary contact terminal 502 is moved up and down Contact sticks 200 and the primary contact terminal 502 and the primary fixed terminal 501 is short-circuited by

The mobile cam 400 is coupled to the flanger 320 which is pulled in and out by the power applied to the solenoid 300 and moved by the operation of the flanger 320.

One side portion of the mobile cam 400 is provided with a locking portion 430 protruding from the secondary contact terminal 504.

In addition, the body is fitted into the groove 440 formed at the side end of the mobile cam 400 and is coupled to the tension spring 601 installed on the inner surface of the housing 10, the end of the body forms a handle 610 The handle 610 further includes an emergency lever 600 installed to be exposed to the outside of the home appliance.

Referring to the operation diagram by the insertion of the latch 20, the slide 100 is pushed in the right direction (see Fig. 1) by the insertion of the latch 20, at this time protrudes on the top of the slide 100 The installed protrusions 110 are also operated in the right direction. In addition, one surface of the protruding piece 110 has a predetermined inclination angle, the contact stick 200 is elastically supported by the elastic spring 210 is moved along the predetermined inclination angle.

The other side of the contact stick 200 is in contact with the primary contact terminal 502 of the operation contact unit 500, the contact stick 200 is pushed to the upper side along the inclination angle of the protrusion 110, the above 1 The primary contact terminal 502 is in contact with the primary fixed terminal 501 so that the primary contact terminal 502 and the primary fixed terminal 501 are in a conductive state.

The state where the primary contact terminal 502 and the primary fixed terminal 501 are conducted is used as an operation standby state in home appliances.

When the operation signal is generated by the user's operation in the operation standby state, the operation signal is applied to the solenoid contact portion 310 and the solenoid 300 applies electricity to the solenoid coil so that the flanger 320 is drawn out. .

The end of the flanger 320 is coupled to the mobile cam 400, the movement cam 400 is pushed to the upper side by the operation of the flanger 320.

A locking portion 430 is provided at a side end surface of the mobile cam 400, and the locking portion 430 is in contact with the secondary contact terminal 504, and moves upwards of the mobile cam 400. The secondary contact terminal 504 and the secondary fixed terminal 503 are brought into a conductive state.

The mobile cam 400 moved in the above should maintain the moved state.

Therefore, a configuration for maintaining the state of the mobile cam 400 will be described.

A projection 401 is formed at the rear of the mobile cam 400, and a groove is provided to circumscribe the projection 401, and the position fixing cam 410 is installed at the rear side of the mobile cam 400 to be rotatable. Is installed, one surface of the position fixing cam 410 and one surface of the housing 10 is a torsion spring 411 is installed.

Accordingly, the fixed cam 410 is below a certain force, that is, the position fixing cam 410 is maintained below the elastic force of the torsion spring.

The present invention will be more clearly understood through the accompanying exploded perspective and operation views.

Figure 3 shows an exploded perspective view of the door lock device according to the present invention, Figure 4 shows the operation when the latch is inserted, Figure 5 shows the operation when the solenoid is operated.

The housing 10 is provided with a section in which the operation contact part 500, the solenoid 300, and the solenoid contact part 310 applied to the solenoid 300 are seated, and an opening through which the latch 20 is inserted is provided. .

The slide 100 is moved while the latch 20 is inserted into the latch inlet 120.

The slide 100 has a predetermined bent portion and communicates with an opening through which the latch 20 is inserted to provide a latch inlet 120, and has a protrusion 110 having a predetermined inclination angle on one surface thereof.

A contact stick 200 which is moved up and down along a predetermined inclination angle of the protrusion piece 110 and abuts on a predetermined inclination angle of the protrusion piece 110 is supported by the elastic spring 210. The other end of the contact stick 200 is in contact with the primary contact terminal 502 and the primary contact terminal 502 and the primary fixed terminal 501 are short-circuited by left and right movement.

The flanger 320 which draws in and out by the power applied to the solenoid 300 is coupled to the mobile cam 400 so that the mobile cam 400 operates by the operation of the flanger 320.

One side portion of the mobile cam 400 is provided with a locking portion 430 protruding from the secondary contact terminal 504 so that the locking portion 430 is in contact with the secondary contact terminal 504, thereby moving the cam ( By the operation of the 400, the secondary contact terminal 504 is in contact with the secondary fixed terminal 503 or short-circuited.

In addition, the emergency lever will be described as a configuration in which a power failure or abnormality occurs during the operation of the home appliance, thereby forcibly returning the mobile cam 400 to release the latch 20.

The body of the emergency lever 600 is fitted with a recess 440 formed at the side end of the mobile cam 400. In addition, the end of the emergency lever 600 located inside the housing 10 has a constant jaw so as not to fall out of the groove 440, and the jaw is coupled to the side wall of the housing 10 and the tension spring 601.

The other end of the emergency lever 600, the handle 610 is configured to be exposed to the outside of the home appliance, the emergency lever 600 is not used often because the handle 610 is installed to be hidden as possible This is preferable.

The elastic spring 101 is installed on the lower side of the slide 100 to return to the initial state by detachment of the latch, but the elastic spring 101 can be easily implemented by those skilled in the art and a detailed description thereof will be omitted. .

4 illustrates a state in which the latch 20 is inserted. Referring to the operation diagram of the latch 20, the slide 100 is pushed in the right direction by the insertion of the latch 20. In this case, the protruding piece 110 protruding from the upper portion of the slide 100 also operates in the right direction. In addition, one surface of the protruding piece 110 has a predetermined inclination angle, the contact stick 200 is elastically supported by the elastic spring 210 is moved along the predetermined inclination angle.

The other side of the contact stick 200 is in contact with the primary contact terminal 502 of the operation contact portion 500, the contact stick 200 is pushed upward along the inclination angle of the protrusion 110, the above 1 The primary contact terminal 502 is in contact with the primary fixed terminal 501 so that the primary contact terminal 502 and the primary fixed terminal 501 are in a conductive state.

5 illustrates a state in which a solenoid according to a state in which a home appliance is operated by a user's operation is operated. When an operation signal is generated by a user's operation in a standby state, the solenoid contact unit 310 transmits the operation signal. The solenoid 300 is applied to the solenoid coil to apply electricity to the flanger 320 is drawn out.

The end of the flanger 320 is coupled to the mobile cam 400, the mobile cam 400 is pushed upward by the operation of the flanger 320.

A locking portion 430 is provided at a side end surface of the mobile cam 400, and the locking portion 430 is abutted with the secondary contact terminal 504. The difference contact terminal 504 and the secondary fixed terminal 503 are brought into a conductive state.

After the above process, the home appliance is operated by the user's input signal, which may be a power failure or an abnormality of the home appliance.

In this case, it is necessary to cut off the power and withdraw the contents inside the home appliance, but the solenoid 300 cannot be operated because the power is cut off.

Therefore, it is necessary to forcibly return the mobile cam 400. This configuration consists of a pulling operation of the emergency lever 600 of the present invention.

When the emergency lever 600 is pulled downward, the movable cam 400 is forcibly moved downward by the jaws of the emergency lever 600, and the slide 100 becomes a movable state, and the emergency lever 600 Is returned to its original state by the tension spring 601.

In order to meet the purpose of the present invention looks at the configuration to control the slide 100 by the operation of the mobile cam 400.

 6 and 7 are a perspective view and a plan view showing a state in which the extension axis of the mobile cam is moved to the inside of the slide fixed respectively.

The slide 100 has a certain bending and a groove is created by the movement of the slide.

An extension part 420 of the mobile cam 400 is inserted into the groove to fix the slide 100. This configuration will be more clearly understood by FIG. 7.

When the above description is reversed, when the slide 20 is not inserted because the latch 20 is not inserted, the extension part of the mobile cam 400 may generate an electric signal for operating the home appliance by a user's operation. Since the groove which may be moved by the 420 does not occur, the secondary contact terminal 504 and the secondary fixed terminal 503 are kept short-circuited, and thus the home appliance does not operate.

Therefore, a groove in which the mobile cam 400 can be moved is created only when the latch 20 is inserted, so that the home appliance can be operated more safely.

The configuration of the position fixing cam 410 for fixing the mobile cam 400 in the present invention can be variously configured according to the practice of those skilled in the art, the claims of the present invention is limited by the drawings shown in the embodiment of the present invention It should not be reduced or reduced.

1 is a plan view of a door lock device according to the present invention.

2 is a perspective view of a door lock device according to the present invention.

Figure 3 is an exploded perspective view of a door lock device according to the present invention.

4 is an operation diagram when a latch is inserted.

5 is an operation diagram when the solenoid is operated.

Figure 6 is a perspective view of the extended axis of the moving cam moved to the inside of the slide.

7 is a plan view of the extended axis of the moving cam moved to the inside of the slide.

** Description of symbols for the main parts of the drawing **

10.Housing 20 ... Latch

100.Slide 110.Extrude

120 ... latch inlet

200 ... contact stick 210 ... elastic spring

300 Solenoid 310 Solenoid Contact

320 ... flange

400 ... Moving Cam 410 ... Positioning Cam

420 ... Extension shaft 430

440 groove 500 operating contact

600 Emergency lever 610 Handle

Claims (4)

In the door lock lock, A housing 10 having an operation contact part 500, a solenoid 300, and a solenoid contact part 310 applied to the solenoid 300, and having an opening through which the latch 20 is inserted; A slide 300 having a predetermined bent portion and communicating with an opening through which the latch 20 is introduced, the latch inlet 120 having a predetermined inclination angle on one surface thereof, and a protruding piece 110 protrudingly installed; It is moved up and down along the inclined angle of the protrusion piece 110, but is supported by the elastic spring 210 so as to always contact the inclined angle of the protrusion piece 110, the other side is in contact with the primary contact terminal 502 is moved up and down A contact stick 200 in which the primary contact terminal 502 and the primary fixed terminal 501 are short-circuited by; A mobile cam 400 coupled to the flanger 320 for entering and withdrawing by the power applied to the solenoid 300 and moved by the operation of the flanger 320; One side portion of the mobile cam 400 is provided with a catching portion 430 protruding from the secondary contact terminal 504, The slide 100 is moved by the insertion of the latch 20, and the contact stick 200, which is in contact with a predetermined inclination angle of the protruding piece 110 by the movement of the slide 100, is moved by the elastic spring 210. The primary contact terminal 502 and the primary fixed terminal 501 are pushed out, and the flanger 320 is operated by the power applied to the solenoid contact portion 310 to move the secondary contact by the movement of the mobile cam 400. Door lock device for home appliances, characterized in that the terminal 504 is connected to the secondary fixed terminal (503). The method according to claim 1, A projection 401 is formed at a lower portion of the movable cam 400, and a position fixing cam 410 is provided at a lower portion of the movable cam 400 to be rotatable and provided with a groove for circumscribing the protrusion 401; One side of the position fixing cam (410) and one surface of the housing 10 is a torsion spring (411) is installed so that the fixed cam (410) door lock device of the home appliance, characterized in that to prevent rotation under a certain force. The method according to claim 1, The extension shaft 420 of the movable cam 400 is inserted into a predetermined bent interior of the slide 100 moved by the insertion of the latch 20 to interrupt the flow of the slide 100. Door lock device of home appliance to say. The method of claim 1, The body is fitted into the groove 440 formed at the side end of the mobile cam 400 and is coupled to the tension spring 601 installed on the inner side of the housing 10, the end of the body forms a handle 610 and The handle 610 further includes an emergency lever 600 installed to be exposed to the outside of the home appliance, by pulling the handle 610 to the lower in case of an emergency by forcibly releasing the mobile cam 400 latch 20 Door lock device of a home appliance, characterized in that to be separated.

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