RU2642401C2 - Household appliance - Google Patents

Abstract

FIELD: human vital needs satisfaction.

SUBSTANCE: invention relates to a household appliance with a door (101) of the household appliance which is adapted to be locked in a closed position by the power circuit with the locking device (103). The household appliance (100) includes an electromechanical device (105) of the door opening to create the pressure on the inner side (107) of the door (101) of the household appliance adapted to overcome the action of the power circuit created by the locking device (103).

EFFECT: increasing the ease of use.

15 cl, 5 dwg

Description

FIELD OF THE INVENTION

This invention relates to a household appliance with a door for a household appliance, which is configured to be locked in a closed position by means of a power closure by means of a locking device.

State of the art

GB 2075109 A shows a washing machine including a door. A panel for closing the door is provided in front of the housing.

Doors, windows or covers of household appliances can be locked, for example, by means of a geometrical connection. For example, patent document EP 1420100 B1 describes a latch for the door of a laundry machine with a bracket made in the form of a locking hook on the door and with a shutter on the body, with a handle button pivotally mounted on the door, which is translated by turning the bracket from a closed position to an open position.

In addition, it is possible to hold the doors of household appliances in the closed position in an unblocked state by a closing force by means of a power circuit. After closing the door of the household appliance, it cannot open due to only one manual action on the door of the household appliance.

Disclosure of invention

The task underlying the invention is to indicate a household appliance in which it is possible in a simple way to open a sealed shutter with a closing force.

This problem is solved by the subject with the features according to the independent claim. Preferred embodiments of the invention are the subject of drawings, descriptions and dependent items.

According to an aspect of the invention, the problem is solved by a household appliance with a household appliance door that is capable of being locked in a closed position by means of a power closure by means of a locking device that includes an electromechanical door opener to create a force for pressing on the inside of the appliance door to overcome the effect of a power closure created by locking device. This achieves, for example, a technical advantage consisting in simplifying the design of the window and in the possibility of using the old sealed shutters. Pushing the door of a household appliance from the inside is possible by means of an electromagnet coil or other electromechanical actuators. The appliance door is, for example, a window, a hinged door or a lid.

A household appliance is a device that is used for housekeeping. This can be a large device, for example, a washing machine, a washer-dryer, a clothes dryer, a dishwasher, a heat treatment device, an exhaust ventilation device or a refrigeration device, for example, a refrigerator, a freezer, or a combination refrigerator-freezer. However, it can be a small household appliance, such as a water heater, coffee machine, food processor or vacuum cleaner.

Preferably, the household appliance is a washing machine, a washer-dryer or a tumble dryer. In this case, the door of the household appliance preferably locks the laundry processing chamber. The laundry treatment chamber in a washing machine or a washer-dryer is a washing solution tank with a laundry drum, and in a laundry dryer, a laundry drum. The door of the household appliance for locking the processing chamber in these cases is made, for example, in the form of a window.

In a preferred embodiment of the household appliance, the electromechanical door opener comprises an electromagnet coil for generating a pressing force on the inside of the door of the household appliance. Due to this, for example, a technical advantage is achieved, consisting in the fact that by means of a magnetic field it is possible to exert a pressing force quickly and efficiently.

In a further preferred embodiment of the household appliance, an electromagnet coil is located behind the front wall of the household appliance. This achieves, for example, a technical advantage in that the door opener is hidden behind the front wall.

In a further preferred embodiment of the household appliance, the electromagnet coil comprises a magnetically soft metal part for passing the magnetic field of the electromagnet coil. Due to this, for example, a technical advantage is achieved, consisting in the fact that the pressing force is provided more efficiently by conducting and concentrating the magnetic field lines.

In a further preferred embodiment of the household appliance, the electromagnet coil is a cylindrical coil. This achieves, for example, a technical advantage, consisting in the fact that it is possible to create a narrow magnetic field along the axis of the coil of an electromagnet.

In a further preferred embodiment of the household appliance, the door of the household appliance comprises a permanent magnet for interacting with an electromagnet coil. Due to this, for example, a technical advantage is achieved, consisting in the fact that it is possible to repel the permanent magnet by the magnetic field of the coil and thereby open the door of the household appliance from the inside. In a further preferred embodiment of the household appliance, a permanent magnet is introduced into an electromagnet coil. As a consequence of this, a technical advantage is also achieved, for example, in that a possible repulsion of the door of the household appliance takes place along a longer path.

In a further preferred embodiment of the household appliance, a permanent magnet is integrated inside the door of the household appliance. Due to this, for example, a technical advantage is achieved, consisting in the fact that the permanent magnet does not protrude outside the door of the household appliance.

In a further preferred embodiment of the household appliance, the electromechanical door opener comprises a bimetallic element for generating a pressing force on the inside of the door of the household appliance. Due to this, for example, a technical advantage is achieved, consisting in the fact that it is possible to exert a significant pressing force on the door of a household appliance.

In a further preferred embodiment of the household appliance, the household appliance comprises a heater for heating the bimetal element. Due to this, for example, a technical advantage is achieved, consisting in the fact that the electrical inclusion of the bimetallic element is possible.

In a further preferred embodiment of the household appliance, the bimetal element is located in the chamber. This achieves, for example, a technical advantage in that it is possible to efficiently heat the bimetallic element.

In a further preferred embodiment of the household appliance, the electromechanical door opener comprises a movable pusher for pressing the door of the household appliance. Due to this, for example, a technical advantage is achieved, consisting in the fact that it is possible to transfer the force of pressing to a predetermined place on the door of a household appliance.

In a further preferred embodiment of the household appliance, the movable pusher comprises magnetic or magnetizable material. Due to this, for example, a technical advantage is achieved, consisting in the fact that it is possible to act on the pusher by means of an electromagnet coil.

In a further preferred embodiment of the household appliance, the movable pusher is loaded with an elastic element, for example an elastic spring. This achieves, for example, a technical advantage in that the plunger is placed in a predetermined position in a spring state.

In a further preferred embodiment of the household appliance, the movable pusher protrudes from an opening in the front wall of the household appliance. Due to this, for example, a technical advantage is achieved, consisting in the fact that the pusher can pass the distance between the household appliance and the door of the household appliance.

Brief Description of the Drawings

Embodiments of the invention are presented in the drawings and are further described in more detail.

Showing:

FIG. 1 is a schematic view of a household appliance;

FIG. 2 is a schematic view of a door opener with an electromagnet coil;

FIG. 3 is a schematic view of a door opener with an electromagnet coil and a spring-loaded pusher configured to move;

FIG. 3A is another schematic view of a further embodiment of a door opener;

FIG. 3B is another schematic view of a further embodiment of a door opener;

FIG. 4 is a schematic view of a door opener with a bimetallic element;

FIG. 5 is a schematic view of a door opener with an electromagnet coil and a permanent magnet in three embodiments.

The implementation of the invention

In FIG. 1 shows a schematic view of a household appliance 100. The household appliance 100 is, for example, a tumble dryer or a washing machine. The appliance 100 includes a door 101 of the appliance that is openable, for example, to load laundry into the appliance 100. A lock device 103 is provided to lock the door 101 of the appliance, which exerts a closing force in the closed position of the appliance door 101 .

In FIG. 2 shows a schematic view of a door opening device 105 with an electromagnet coil 105. With the closed door 101 of the household appliance in the closed position 101-1, a closing force is exerted on the door 101 of the household appliance, which prevents the door 101 of the household appliance from opening itself. The door opener 105 unlocks the door 101 of the household appliance by opening and opening the door or touch screen of the household appliance 100. To this end, the action of the power circuit created by the locking device 103 is overcome in the door opening device 105.

The electrically controlled opening of the door can occur in the already unlocked position of the household appliance 100. In this case, the pressing force for opening the door 101 of the household appliance is produced by an electromagnet coil 109, which is located behind the front wall 113 of the household appliance 100. The electromagnet coil 109 is, for example, a cylindrical coil whose axis is perpendicular to the front wall 113. The plunger 111 is arranged to move in the Central cavity of the cylindrical coil.

To open the door 101 of the household appliance, a voltage is briefly applied to the electromagnet coil 109, and by means of the arising magnetic field, the pusher 111 moves in the direction of the arrow, so that the door 101 of the household appliance is pressed and it goes into the open position 101-2. The part of the pusher 111 located inside the coil 109 of the electromagnet, i.e. the core of the coil is provided with magnetizable or magnetic material 125, so that the pusher 111 is connected to the generated magnetic field by force.

In the closed position, the electromagnet coil 109 of the door opener 105 is not energized, and the position of the pusher 111 adjusts to the position of the door 101 of the household appliance.

The door opening device 105 can be used in combination with a group of shutters which, in the unlocked and closed position, are closed with a force circuit (tight shutters). Sealed shutters are opened by applying force from the inside of the door 101 of the household appliance, such as in a window frame or window glass. The electromechanical device for opening the door 105 serves to overcome the closing force created by the hermetic shutter in the unlocked position when opening. This creates a door shutter system that makes it possible to open from the inside in the unlocked position, so that as a result there is a tight shutter with a child lock function.

In FIG. 3 shows a schematic view of a door opener 105 with an electromagnet coil 109 and a pusher 111 subjected to an elastic spring 115. When the electromagnet coil 109 is not energized, the pusher 111 is held in position by an elastic spring 115.

In FIG. 3A shows the following schematic view related to the next embodiment of the door opener 105. When closing the door 101 of the household appliance, the pusher 111 behind the front wall 113 moves, and the elastic spring 115 is tensioned. When the door 101 of the household appliance is opened, the tensioned elastic spring 115 facilitates the opening process.

In FIG. 3B is a schematic view of a further embodiment of a door opener 105. In this embodiment, the door opening device 105 includes two resilient springs 115-1 and 115-2. The elastic spring 115-1 when closing the door 101 of the household appliance is compressed and facilitates the process of opening the door 101 of the household appliance. An elastic spring 115-2 holds the plunger 111 in a certain position when the electromagnet coil 109 is not energized.

In FIG. 4 shows a schematic view of a door opener 105 with a bimetallic element 123. The bimetallic element 123 is formed, for example, by a metal strip of two layers of different metals, which are connected to each other in one piece or with a geometric closure. If the metal strip is heated, both metals expand to different degrees and the bimetal element 123 takes a different shape.

The bimetallic element 123 is located in the chamber 121 and is heated by an electric heater serving as a heat source, for example, by means of a heating coil or a thermistor with a positive temperature coefficient. In order to overcome the effect of the power circuit created by the locking device 103, the bimetallic element 123 is heated to take a different shape and, by means of a pusher 111, made with the possibility of movement, pressed the door 101 of the household appliance.

In FIG. 5 shows a schematic view of a door opener 105 with an electromagnet coil 109 and a permanent magnet 117. The door 101 of the household appliance is in the closed position 101-1 or in the open position 101-2. Instead of the pusher 111, which is not rigidly connected to the door 101 of the household appliance, it is possible to use permanent magnets 117, which are mounted on the door 101 of the household appliance. The permanent magnet 117 is repelled by the electromagnet coil 109, which is mounted behind the front wall 113. In order to conduct the magnetic field 109 generated by the electromagnet coil 109, metal parts 119 of soft magnetic material are provided which are located at appropriate places around the electromagnet coil 109. Soft magnetic metal parts 119 are formed, for example, by sheet metal or rods.

In all cases, for components that are located on the inner side of the door in the drawings, an arrangement on the front wall can also be provided, and for parts on the front wall, it can also be located on the inner side of the door if the door 101 of the household appliance has an appropriate power supply for the actuator . In addition, it is possible to reverse the poles of the permanent magnets 117.

The electromechanical device for opening the door 105 meets the requirements for household appliances, and allows you to simplify the design of the window. In this case, you can do without mechanics with a hook and a handle. The possibility of using the old airtight locks remains unchanged.

All the features explained and shown in combination with the individual embodiments of the invention can be provided in the subject according to the invention in different combinations in order to simultaneously realize their preferred effects.

The scope of the invention is defined by the claims and is limited by the features explained in the description or shown in the drawings.

Designations

100 household appliance

101 appliance door

101-1 closed position

101-2 open position

103 locking device

105 door openers

107 inner side

109 solenoid coil

111 pusher

113 front wall

115 spring

115-1 spring

115-2 spring

117 permanent magnet

119 soft magnetic metal part

121 cameras

123 bimetal element

125 electromagnetic or magnetizable material

Claims (15)

1. A household appliance (100) with a door (101) of a household appliance that is capable of being locked in the closed position by means of a force closure by means of a locking device (103), characterized in that the household appliance (100) comprises an electromechanical device for opening the door to create the force of pressing on the inner side (107) of the door (101) of the household appliance with overcoming the action of the power circuit created by the locking device (103). 2. A household appliance (100) according to claim 1, characterized in that the electromechanical device for opening a door comprises a coil (109) of an electromagnet for generating a pressing force on the inside (107) of a door (101) of a household appliance. 3. A household appliance (100) according to claim 2, characterized in that the electromagnet coil (109) is located behind the front wall (113) of the household appliance (100). 4. A household appliance (100) according to claim 2 or 3, characterized in that the electromagnet coil (109) comprises a soft magnetic metal part (119) for passing the magnetic field of the electromagnet coil (109). 5. A household appliance (100) according to claim 2 or 3, characterized in that the electromagnet coil (109) is a cylindrical coil. 6. A household appliance (100) according to claim 2 or 3, characterized in that the door (101) of the household appliance contains a permanent magnet (117) for interacting with an electromagnet coil (109). 7. A household appliance (100) according to claim 6, characterized in that the permanent magnet (117) is configured to insert an electromagnet inside the coil (109). 8. A household appliance (100) according to claim 6, characterized in that the permanent magnet (117) is integrated into the door (101) of the household appliance. 9. A household appliance (100) according to claim 1, characterized in that the electromechanical device (105) for opening the door comprises a bimetallic element (123) for generating a pressing force on the inside (107) of the door (101) of the household appliance. 10. A household appliance (100) according to claim 9, characterized in that the household appliance (100) comprises a heater for heating the bimetallic element (123). 11. A household appliance (100) according to claim 9 or 10, characterized in that the bimetallic element (123) is located in the chamber (121). 12. A household appliance (100) according to one of paragraphs. 1-3, 7-10, characterized in that the electromechanical device (105) for opening the door comprises a movable pusher (111) for pressing the door (101) of the household appliance. 13. A household appliance (100) according to claim 12, characterized in that the pusher (111) made with the possibility of movement is made of magnetic or magnetizable material (125). 14. A household appliance (100) according to claim 12, characterized in that the movable pusher (111) is loaded with an elastic element (115), so that the pusher (111) is placed in a predetermined position in a spring-loaded state. 15. A household appliance (100) according to claim 12, characterized in that the pusher (111) configured to move protrudes from an opening in the front wall (113) of the household appliance (100).

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