WO2015086333A1 - Domestic appliance having a locking device - Google Patents

Domestic appliance having a locking device Download PDF

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Publication number
WO2015086333A1
WO2015086333A1 PCT/EP2014/075803 EP2014075803W WO2015086333A1 WO 2015086333 A1 WO2015086333 A1 WO 2015086333A1 EP 2014075803 W EP2014075803 W EP 2014075803W WO 2015086333 A1 WO2015086333 A1 WO 2015086333A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
characterized
according
door
domestic appliance
coil
Prior art date
Application number
PCT/EP2014/075803
Other languages
German (de)
French (fr)
Inventor
Andreas Kasack
Roman Goldberg
Thomas Bödrich
Original Assignee
BSH Hausgeräte GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05CBOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C19/00Other devices specially designed for securing wings, e.g. with suction cups
    • E05C19/16Devices holding the wing by magnetic or electromagnetic attraction
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines in so far as such details are not special to washing machines of groups D06F21/00 - D06F25/00 or to any particular type of washing machine defined in groups D06F9/00 - D06F19/00 or D06F27/00
    • D06F39/12Casings; Tubs
    • D06F39/14Doors or covers; Securing means therefor
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05CBOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C19/00Other devices specially designed for securing wings, e.g. with suction cups
    • E05C19/16Devices holding the wing by magnetic or electromagnetic attraction
    • E05C19/166Devices holding the wing by magnetic or electromagnetic attraction electromagnetic
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00Locks or fastenings for special use
    • E05B65/0042For refrigerators or cold rooms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24COTHER DOMESTIC STOVES OR RANGES; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/02Doors specially adapted for stoves or ranges
    • F24C15/022Latches

Abstract

The invention relates to a domestic appliance (100) comprising a door (101). Said domestic appliance (100) comprises a locking device (103) with at least one permanent magnet (105-1, 105-2) for exerting a retaining force to hold the door (101) closed and a coil (107) for generating at least one counter magnetic field for neutralizing the maintaining force.

Description

HOUSEHOLD APPLIANCE WITH A CLOSURE DEVICE

The present invention relates to a domestic appliance having a closure device for closing a door. In household appliances, such as washing machines, then a hold of a door in the locked state by mechanical form-fitting. To this end, the doors with hooks or eyes are provided, which are guided into the interior of the closure during closing. To open the door, some home appliances to a mechanical opening button.

Document EP 0109590 B1 describes a safety door lock, in which all the components of the safety device and are combined for the opening and closing of the door in a housing so that only one component is required for these functions. Two limit position sensor and a solenoid of the electro-mechanical locking device are combined in a housing to form a unit.

It is the underlying object of the invention to provide a household appliance, can be maintained in which a door without mechanics closed and released again. This object is achieved by the subject matter with the features of the independent claim. Advantageous embodiments of the invention are the subject of the figures, the description and the dependent claims.

According to one aspect of the invention the object is achieved by a domestic appliance, wherein the domestic appliance a closure device with a permanent magnet for applying a holding force to lock the gate and a coil for generating a

includes against magnetic field for canceling the holding force. This technical advantage is achieved, for example, that a simplification of the window construction is possible because a hook and handle mechanism are not required. The closure device allows for one to open the door from the inside and gives the other the door via a door opening button free. The keeping the door closed the household appliance by means of a holding force which is realized by force fit. The non-positive closure is holding forces ready in two stages. A lower holding force to lock the gate and increased holding force which prevents the violent opening of the door, so it is to put a locking of the same. Both power stages can be switched to each other by selectively activating the coil or canceled.

Under a household appliance, a device is understood, which is used for financial management. This can be a major household appliance such as a washing machine, a dryer, a dishwasher, a cooking appliance, an extractor fan or a home appliance such as a refrigerator, freezer or

Fridge-freezer. But this can also be a small household appliance, such as

for example, a water heater, a coffee machine, a food processor or a vacuum cleaner.

In an advantageous embodiment of the domestic appliance, the closure device in the door or housing of the domestic appliance is disposed. This

For example, the technical advantage achieved is that the holding force can be transmitted efficiently.

In a further advantageous embodiment of the domestic appliance, the door or the housing of the domestic appliance completely or partially comprises a magnetically highly permeable material for coupling to the generated magnetic field. By the magnetically conductive material of the technical advantage is achieved, for example, that the holding force of the door or of the housing is generated.

In a further advantageous embodiment of the domestic appliance comprises the

Closure means comprises a high permeability magnetic flux guide piece for guiding the magnetic field generated by the permanent magnet. Thus, the technical advantage is achieved for example that the magnetic field can be guided to a predetermined place.

In a further advantageous embodiment of the domestic appliance, the coil is wound around the flux guide. Thus, the technical advantage is achieved for example that the magnetic field of the coil can be efficiently superimposed on the magnetic field of the permanent magnet.

In a further advantageous embodiment of the domestic appliance comprises the

Closure means comprises a first flux guide and a second flux guide piece. Thus, the technical advantage is achieved, for example, that a magnetic circuit can be realized with two magnetic flux guide pieces which can be efficiently provided with a coil for superimposing a magnetic field.

In a further advantageous embodiment of the domestic appliance, a first permanent magnet and a second permanent magnet disposed between the first flux conductor and the second flux guide piece. This technical advantage, for example, also achieved that a permanent magnetic circuit is generated. With highly conductive or highly permeable materials, it is possible to direct the field lines with over longer distances.

In a further advantageous embodiment of the domestic appliance, the coil is wound around the first flux conductor and the second flux guide piece. Thus, the technical advantage is achieved, for example, that an installation space is reduced and the locking means is formed symmetrically.

In a further advantageous embodiment of the domestic appliance, the first flux guide piece comprises a first coil and the second flux guide, a second coil. This technical advantage is achieved, for example, that can be two opposite magnetic fields independently control.

In a further advantageous embodiment of the domestic appliance comprises the

Closure means comprises a movable magnetically highly permeable control armature for guiding the magnetic field. Thus, the technical advantage is achieved, for example, that the magnetic field which generates the holding force can be targeted increase or decrease.

In a further advantageous embodiment of the domestic appliance the control armature is coupled via an elastic member with the flux guide. This technical advantage is achieved, for example, that a simple controllable structure for amplifying the magnetic field is achieved. In general, the elastic member may also be connected to the housing or coupled. The resilient member generates a force for separating the anchor and control flux guide piece.

In a further advantageous embodiment, the household appliance control the anchor on the first ferromagnetic flux conductor and the second ferromagnetic flux conductor can be placed. This technical advantage is achieved, for example, that the holding force can be controlled. In a further advantageous embodiment of the domestic appliance the control armature via a first elastic member with the first flux guide piece and a second elastic member with the second flux guide piece is coupled. This technical advantage is achieved, for example, that the control anchor can be performed on both flux guide. In general, each element can be used as the elastic member that a force for separating the anchor and control flux guide generated

In a further advantageous embodiment of the domestic appliance comprises the

Closure means includes a switch for detecting the position of the control armature. This technical advantage is achieved, for example, that the opening state of the door being locked.

In a further advantageous embodiment of the domestic appliance comprises

Domestic appliance an elastic member between the closure means and the door. This technical advantage is achieved, for example, that the door from a small holding force is automatically suppressed.

Embodiments of the invention are illustrated in the drawings and will be described in more detail below. Show it:

Figure 1 is a schematic view of a closure device.

Figs. 2A to 2H different phases during closure, releasing and opening a door by means of the closure device;

Figs. 3A to 3C different embodiments of the closure means;

4A and 4B show two different arrangements of the closure device. and

Fig. 5A and 5B, two circuits for driving the shutter means.

Fig. 1 shows a schematic view of a magnetic closure device 103 having two permanent magnets 105-1 and 105-2 and a coil 107 in energized state. A door 101 is opened wide a gap relative to the closure means the 103rd The closure device 103 is arranged in a housing of the household appliance 100, and may interact through the generated magnetic field with a highly permeable closure armature 1 17, which is arranged in a door 101 of the household appliance. Of the

ferromagnetic armature closure 1 17 may for example comprise an iron core. By the magnetic field of the permanent magnets 105-1 and 105-2, a holding force can be generated, which holds the door in the closed position.

The closure device 103 comprises two parallel flux conductors 109-1 and 109-2, between which the permanent magnets are arranged 105-1 and 105-2. The coil 107 is wound around the two flux conductors 109-1 and 109-2, and may generate a magnetic field that is superimposed on that of the magnetic field generated by the two permanent magnets 105-1 and 105-2.

In addition, the closure means 103 comprises a control anchor 1 1 1 through which the magnetic field can be influenced. The control armature 1 1 1 comprises a highly permeable material.

The control armature 1 1 1 is secured with a prestressed elastic spring element 1 13 to the permanent magnet 105-2, such as a helical compression spring. The magnetic field lines 1 19 extend within the two flux conductors 109-1 and 109- 2, the two permanent magnets 105-1 and 105-2 and the control armature 1 1. 1 Between the closure means 103 and the door 101, a further elastic spring element 1 15 is disposed which impresses the door 101, once the holding force falls below the spring force. The spring element 1 15 is realized for example by a helical compression spring or a resilient door seal.

The holding force of the door is generated by magnetic force. Different locking forces in the unlocked and the locked state can be realized during the opening, locking or unlocking by a magnetic field change by means of electric coils 107 and / or an iron-core magnetic or displacement by the control armature 1 1. 1 This will allow small locking forces in the unlocked state, ie operating force smaller than 50 N and high

achieve locking forces, for example, 200 N in the locked state. The door-side part must be designed with a highly permeable material. Fig. 2A shows the fastener means 103 in de-energized state of the coil 107. The door 101 is opened and a gap is kept at a distance from the closure device 103 from the resilient member 1 15 °. The control armature 1 1 1 is pressed by the magnetic field of the permanent magnets 105-1 and 105-2 to the flux conductors 109-1 and 109-2, so that the magnetic field is directed into the region of the control armature 1 1. 1

Fig. 2B shows the fastener means 103 in an energized state of the coil 107 after a manual Flattening and closing the door 101. The door 101 is pushed against the spring force of the elastic member 1 15 to the closure means 103 and in this position by the magnetic field of the magnet 105-1 held, which exerts a holding force on the closure armature 1 17 in the door. The holding force in this state is, for example, 50 N. On the other side of the closure device 103 is the

Control armature 1 1 1 is held by the permanent magnet 105-2 in contact with the flux guide pieces 109-1 and 109-2. Fig. 2C shows the closure device 103 in a state at the beginning of a positive energization of the coil 107. The magnetic field generated by the coil 107 superimposed on that of the magnetic field generated by the permanent magnets 105-1 and 105-2. In the left part of the closure device 103, the magnetic field is removed in the area of ​​the control armature 1 1 1 (opposite direction of the field lines). The control armature 1 1 1 is then pressed by the spring member 1 13 to the outside. The right side of

Closure device 103, the magnetic field in the region of the closure armature 1 17 is reinforced by the fact so that the holding force between the shutter 103 and the shutter anchor 1 is increased 17 and the door is locked the one hundred and first The holding force on the door 101 is in this state, for example, 280 N. Thereafter, the current is interrupted by the coil 107th

Fig. 2D shows the fastener means 103 in de-energized state of the coil 107. The control armature 1 1 1 of the elastic element 1 at a distance from the 13

ferromagnetic flux guide pieces 109-1 and 109-2 held, so that the magnetic field generated by the two permanent magnets 105-1 and 105-2 on the right side in

Direction of the fastener anchor 1 17 displaced. The spring element 1 13 generates a

Air gap between the armature control 1 1 1 and the flux guide pieces 109-1 and 109-2.

Thus, the increased holding force can be maintained even in the currentless state of the closure device 103, so that the door 101 remains locked. Fig. 2E shows the closure device 103 in a more positive the energized state of the coil 107 after initiation of an opening phase for unlocking and opening the door 101. To release first the air gap between the armature control 1 1 1 and the

Flux guide closed 109-1 and 109-2. This is initiated by the coil 107 is strongly energized briefly. The magnetic field enhances the one magnetic field, generated by the coil 107 which is generated by the permanent magnets 105-1 and 105-2. Thereby, the field lines at the left side of the flux conducting elements 109-1 and 109-2 with the control armature 1 1 1 interact. The force applied to the anchor control 1 1 1 exceeds the force of the spring element 1 13, so that the control armature 1 1 1 is attracted again to the flux conductors 109-1 and 109-2. The holding force on the door 1 1 1 is thereby further increased in the short term.

Fig. 2F shows the fastener means 103 in the more positive the energized state of the coil 107 with applied control armature 1 1 1. Both the control armature 1 1 1 and the closure armature 1 17 are retained on the flux conductors 109-1 and 109-2.

Fig. 2G shows the closure device 103 in a de-energized state of the coil 107 with applied control armature 1 1 1 remains in the energized state, the position of

Control anchor 1 1 1 get. This state corresponds to the state of Fig. 2B, which results just after closing the door, the one hundred and first

Fig. 2H shows the closure device 103 in a negatively energized state of the coil 107. In this case, a counter magnetic field is generated by the coil 107, which cancels the holding force of the permanent magnet 105-1. The holding force is 0N example in this state. The door 101 is then pressed by the elastic member 1 15 to the outside and can be opened manually. The electrical drive of the coil 107 can be carried out in a pulsed manner or zeitbefristet with direct or alternating current by means of a circuit.

Fig. 3A shows an embodiment of the closure device 103, in which the

Coil winding of the coil 107-1 is axially opposite to the coil winding of the coil 107-2 to the second flux guide piece 109-2 to the first flux guide piece 109-1. The coil 107-1 and the coil 107-2 are connected in series. The control armature 1 1 1 is attached via a single elastic element 1. 13 Between the shutter 103 and the shutter anchor 1 17, the elastic member 15 1 for opening and / or arresting the door 101 in the area of ​​the closure device 103 is arranged. When using partial coils the winding direction of each coil element is chosen so that the magnetic action of the coil complementary. Basically, a division of the coil is not necessary. However, the resilient element 1 13 may be connected to the housing or coupled so that it generates a force for separating the control armature and flux guide piece 1 1 1 109-1 and 109-2.

Fig. 3B shows an embodiment of the closure device 103, in which the

Coil winding of the coil 107-1 is around the first flux guide piece 109-1 axially in the same direction as the coil winding of the coil 107-2 to the second flux conductor 109-2. The coil 107-1 and the coil 107-2 are connected in series. The control armature 1 1 1 is connected via two resilient elements 1 13-1 and 1 13-2 attached to the ferromagnetic flux guide. In general, one or more elastic elements can be provided. The resilient elements 1 13-1 and 1 13-2 provide a force that counteracts the magnetic field. The resilient element 1 15 is arranged in the region of a hinge, not shown, or in the front wall of the house hold appliance. Also generally more elastic elements can be provided for this purpose.

Fig. 3C shows an embodiment of the closure device 103 having two coils 107-1 and 107-2, which can be controlled individually. The control armature 1 1 1 is reset in this embodiment by two resilient elements 1 13-1 and 1 13-2.

Fig. 4A shows an arrangement of electrically controlled portion of the closure device in the housing 121 of the household appliance 100. The fastener anchor 1 17 is disposed in the door of the one hundred and first When the door 101 is at a suitable location at least partly made of magnetically highly permeable material, the door forms the closure anchor 1 17. The

Shutter anchor 1 17 need not be designed as a separate part

FIG. 4B shows an arrangement of electrically controlled portion of the closure device in the door 101 of the household appliance 100. The fastener anchor 1 17 is disposed in the housing 121.

Fig. 5A shows a circuit 200 for driving the closure device 103. The

Circuit 200 includes a voltage source 201, resistors 203-1, 203-2 and 203-3 and the switch 205-1, 205-2, 205-3. Depending on the position of the switches 203-1, 203-2 and 203-3200 energizes the circuit, the coil 107 with two different large flows in the positive direction or a current in a negative direction through the resistors 203-1, 203-2 and are defined 203-3. Can be effected by an unlocking or locking and opening of the door the one hundred and first In general, however, other circuits having one or more coils may be used.

FIG. 5B illustrates another circuit 200 for driving the closure device 103. In this embodiment, the power source is opposite to Fig. 5A used. Circuits of the switch for monitoring the door status are not shown in the diagrams.

The Verriegelt- / unlocked status of the locking device can be checked by a query of an electrical switching state of a switch by moving during the Verriegeins Entriegeins or parts, such as the control armature 1 1 1, is electrically opened or closed. In addition, the door-open / closed status by retrieving the electrical switching state of a switch can be checked, which is closed by the moving during closing or opening parts such as the door 101 or the shutter anchor 1 17 on the door 101 opened electrically or becomes.

The closure device 103 permits the one hand the opening of the door from the inside 101 in the unlocked state, so that a tear-off closure with child safety function is achieved. Secondly, the opening of the door 101 is reached via a door release button that releases the door or 101 raises. With the closure device 103 is a simplification of the window construction is possible in which a hook and a gripping mechanism are eliminated. The closure device 103 is robust with respect to the vertical tolerance positions, such as in a hanging window.

All explained in connection with particular embodiments of the invention and features shown may be provided in different combinations in the article of the invention, to simultaneously realize their advantageous effects.

The scope of the present invention is given by the claims and is not limited by those explained in the description or shown in FIGS characteristics. LIST OF REFERENCE NUMBERS

100 Home Appliance

101 door

103 closure device

105 permanent magnet

107 coil

107-1 coil

107-2 coil

109 magnetically highly permeable flux guide

109-1 magnetically highly permeable flux guide

109-2 magnetically highly permeable flux guide

1 1 1 magnetically highly permeable armature control

1 13 elastic member

1 15 elastic member

1 17 magnetically highly permeable closure anchors

1 19 field lines

121 housing

200 circuit

201 voltage source

203-1 resistance

203-2 resistance

203-3 resistance

205-1 button

205-2 button

205-2 button

Claims

1 . Domestic appliance (100) having a door (101), characterized in that the
Domestic appliance (100) has a closure means (103) with at least one
Permanent magnet (105-1, 105-2) for applying a holding force to lock the gate (101) and a coil (107) for generating a counter magnetic field for canceling the retention force comprises.
2. Domestic appliance (100) according to claim 1, characterized in that
Closure means (103) in the door (101) or a housing (121) of the
Household appliance (100) is arranged.
3. Domestic appliance (100) according to one of the preceding claims, characterized
in that the door (103) or the housing of the household appliance (100) includes a shutter anchor (1 17) for coupling with the magnetic field.
4. Domestic appliance (100) according to one of the preceding claims, characterized
in that the closure means (103), a magnetically
high-permeability flux guide (109-1, 109-2) for guiding the of the
Permanent magnet (105-1, 105-2) includes the generated magnetic field.
5. Domestic appliance (100) according to claim 4, characterized in that the coil (107) around the flux guide (109-1, 109-2) is wound.
6. Domestic appliance (100) according to any of the preceding claims, characterized
in that the closure means (103) comprises a first flux guide (109- 1) and a second flux conductor (109-2).
7. Domestic appliance (100) according to claim 6, characterized in that between the first flux conductor (109-1) and the second flux conductor (109-1), a first permanent magnet (105-1) and a second permanent magnet (105-2) arranged is.
8. Domestic appliance (100) according to claim 6 or 7, characterized in that the coil (107) wound around the first flux conductor (109-1) and the second flux conductor (109-2).
9. Household appliance (100) according to claim 8, characterized in that the first flux guide piece (109-1) having a first coil (107-1) and the second flux conductor (109-1) comprises a second coil (107-2).
10. Household appliance (100) according to any one of the preceding claims, characterized
in that the closing device (103) comprises a movable magnetically highly permeable control armature (1 1 1) for guiding the magnetic field.
1. 1 Domestic appliance (100) according to claim 10, characterized in that the
movable control armature (1 1 1) through an elastic member (1 13) with the
Flux conductor (109-1, 109-2) is coupled.
12. Household appliance (100) according to any one of claims 10 or 1 1, characterized
in that the control armature (1 1 1) to the first flux conductor (109-1) and the second flux conductor (109-1) can be placed.
13. Household appliance (100) according to any one of claims 10 to 12, characterized in that the control armature (1 1 1) via a first elastic member (1 13-1) with the first flux conductor (109-1) and a second elastic member (1 13-2) to the second flux conductor (109-2) is coupled.
14. Household appliance (100) according to any one of claims 10 to 13, characterized in that the closure means (103) comprises a switch for detecting the position of the control armature (1 1 1).
15. Household appliance (100) according to any one of the preceding claims, characterized
in that the domestic appliance (100) comprises an elastic member (1 15) between the closure means (103) and the door (101).
PCT/EP2014/075803 2013-12-10 2014-11-27 Domestic appliance having a locking device WO2015086333A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE102013225347.8 2013-12-10
DE201310225347 DE102013225347A1 (en) 2013-12-10 2013-12-10 Domestic appliance with a closure device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP20140805570 EP3080370A1 (en) 2013-12-10 2014-11-27 Domestic appliance having a locking device
RU2016124267A RU2650067C2 (en) 2013-12-10 2014-11-27 Domestic appliance having locking device
CN 201480067114 CN105814270B (en) 2013-12-10 2014-11-27 Household appliance having a locking device

Publications (1)

Publication Number Publication Date
WO2015086333A1 true true WO2015086333A1 (en) 2015-06-18

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ID=52000840

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/075803 WO2015086333A1 (en) 2013-12-10 2014-11-27 Domestic appliance having a locking device

Country Status (5)

Country Link
EP (1) EP3080370A1 (en)
CN (1) CN105814270B (en)
DE (1) DE102013225347A1 (en)
RU (1) RU2650067C2 (en)
WO (1) WO2015086333A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888290A (en) * 1956-02-27 1959-05-26 William C Pierce Door with magnetic catch
US2928029A (en) * 1957-10-07 1960-03-08 Westinghouse Brake & Signal Tractive armature relays
US3146381A (en) * 1960-09-12 1964-08-25 Vente D Aimants Allevard Ugine Magnetic force control or switching system
US3316514A (en) * 1965-03-29 1967-04-25 Westinghouse Electric Corp Fail safe electro-magnetic lifting device with safety-stop means
EP0109590B1 (en) 1982-11-18 1988-07-13 Schunk Metall und Kunststoff GmbH Safety door locking device
US4965695A (en) * 1987-05-22 1990-10-23 Baumann Joseph D Permanent magnetic retaining device to move, affix or carry ferromagnetic parts or loads with electronic switching of the magnetic flux to release the carried load
US6246561B1 (en) * 1998-07-31 2001-06-12 Magnetic Revolutions Limited, L.L.C Methods for controlling the path of magnetic flux from a permanent magnet and devices incorporating the same
WO2000011296A1 (en) * 1998-08-19 2000-03-02 Fisher & Paykel Limited Door opening and closing system
EP2045423A2 (en) * 2007-10-04 2009-04-08 Ebe Elektro-Bau-Elemente GmbH Device for reversible catching of parts which move relative to each other
EP2284340A2 (en) * 2009-08-13 2011-02-16 K.A. Schmersal Holding GmbH & Co. KG Magnetic catch for closure of an opening

Also Published As

Publication number Publication date Type
CN105814270B (en) 2018-05-29 grant
DE102013225347A1 (en) 2015-06-11 application
CN105814270A (en) 2016-07-27 application
EP3080370A1 (en) 2016-10-19 application
RU2650067C2 (en) 2018-04-06 grant

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