WO2010139551A2

WO2010139551A2 - Device for transmitting electrical energy

Info

Publication number: WO2010139551A2
Application number: PCT/EP2010/056840
Authority: WO
Inventors: Dieter WÖRMANN
Original assignee: Paul Hettich Gmbh & Co. Kg
Priority date: 2009-06-03
Filing date: 2010-05-18
Publication date: 2010-12-09
Also published as: RU2011152804A; WO2010139551A3; CN102804516B; KR20120037443A; CN102804516A; AU2010255902A1; DE202009004882U1; EP2437632B1; EP2437632A2; JP2012528615A

Abstract

The invention relates to a device for transmitting electrical energy between a supply component (33) arranged at a furniture body (31) and a recipient component (32) arranged on a furniture part (5) that can be moved relative to the furniture body (31), in particular a drawer that can be displaced relative to the furniture body (31), wherein the supply component (33) has an electromechanical contact set (23, 24), which can be coupled to an electromechanical contact set (16, 17) of the recipient component (32) in a closed position of the movable furniture part in order to transmit electrical energy, wherein a. the supply component (33) has a position detection unit (25, 34) coupled to an electrical control circuit (36) and an electromagnet (14, 22) that can be controlled by the electrical control circuit (36), and wherein b. the recipient component (32) has a magnetizable element (35), wherein the electromagnet (14, 30) and the magnetizable element (35) are located opposite of each other in a closed position of the movable furniture part (5) such that the contact sets (16, 17, 23, 24) can be brought into contact with each other by activating the electromagnet (14, 22) by way of the control circuit (36).

Description

Device for transmitting electrical energy

The present invention relates to a device for transmitting electrical energy between a arranged on a furniture carcass supply component and a movable relative to a furniture body furniture part according to the preamble of claim 1, and a piece of furniture according to the preamble of claim 12.

Such devices and furniture are known. In furniture, which have electrical equipment, such as lighting in relative to a body movable furniture parts, generic devices are used, which have electrical cables of sufficient length between the body of the furniture and a movable Möbelteii. This severely restricts the use of the furniture and may be due to possible cable breaks in the

Over the life of the furniture lead to failures. In addition, known Selbsteinzugsfunktionen and electric drives for ejecting movable furniture parts due to such lines only limited functional.

The solution used in the past was an energy and data transmission through a non-contact inductive transmission link. However, these systems have the disadvantage that the transmission line operates at high losses and only very low power can be transmitted.

The object of the invention is to provide a device for transferring electrical energy between mutually movable furniture parts, with which sufficient energy can be transferred, and by the functionality of generic furniture is not limited.

The invention achieves this object by the subject matter of claim 1 and by the subject matter of claim 12.

According to the characterizing part of claim 1, the device has a supply component which has a position detection device coupled to an electrical control circuit and a control unit which is controllable by the electrical control circuit. ren electromagnet, and a pickup member having a magnetic element, wherein the electromagnet and the magnetic element facing in a closed position of the movable furniture part, so that the contact sets by activation of the electromagnet by control circuit can be brought into contact with each other.

This makes it possible that via mechanically acting contacts an electrical energy between a furniture body and a relative to this movable furniture part can be transferred, which is sufficient to operate the introduced in the moving Möbelteäl electrical equipment. The transferable energy is essentially limited only by the design of the contacts, It is also insignificant to disturb by electromagnetic phenomena and conversely also hardly leads to such disturbances in the environment. In addition, no fixed connection between the furniture body and the movable furniture part is required by an electric line, so that, for example, the function of a mechanical self-closing, a damping and / or ejection device is not hindered. Also, an undesirable noise, such as occurs with sliding contacts, is avoided here. It is also advantageous that the device can also be subsequently integrated into furniture parts.

Advantageous developments are the subject of the dependent claims.

Due to the design of the position detection device as a light barrier-like device according to the optocoupler principle, a simple and reliable position detection of the movable furniture part is made possible.

In a particular embodiment, the magnetic element is arranged on the contact set of the pickup component and the contact set on the pickup component is movably arranged in the direction of the contact set of the supply component. This makes it possible to have a on a movable Möbeltei! arranged customer component! does not already come into contact with the supply component during the running in of the movable Möbelteiies in its closed position, but only in the predefined end position of the movable Möbeiteäls.

Preferably, the contact set of the pickup member locks via a mechanically locked element with the contact set of the supply member to the Electromagnet to de-energize. Thus, a supply voltage for the magnetic device is required only in the time phases of retraction and extension of the drawer.

According to a particular embodiment, the electrical control circuit has a delay unit which is connected so that a power supply of the Eiektromagneten delayed in time takes place on a signal of the position detection device. This makes it possible, for example, that a self-closing device of a movable furniture part can safely reach the required end position without braking, before a power supply of the movable furniture part takes place. Furthermore, the delayed energy supply minimizes the formation of tearing sparks that lead to increased erosion and wear of the contacts.

Similarly, the delay unit can also act when moving the drawer in the extension direction.

In a preferred embodiment, the relay is designed bistable, and it remains after switching off the excitation variable in the achieved switching state. Another excitation process provides for a return to the initial state,

Conceivable as a further embodiment is also a special design of the contacts by having these spring-like extensions, which can be deformed elastically over a certain distance. By opening or closing the drawer, first the spring travel is utilized and only after the

Disabling or activating the electrical contacts open or close their connection.

Of course, it is also possible to fix the supply component laterally on the furniture carcass and the pickup component laterally on the movable furniture part.

The invention will be explained in more detail with reference to the drawings with reference to embodiments. Show it:

Figure 1 is a perspective view of a piece of furniture with a

Furniture carcass pulled out movable furniture part! and the supply component and the pickup component arranged thereon,

FIGS. 2 and 3 show two perspective detailed views of the supply and removal component in the coupled state,

FIGS. 4 and 5 show two detailed perspective views of the supply and receiving component in the decoupled state,

Figure 6 is a perspective view of the furniture of Figure 1 with positioned in its Schiießstellung movable furniture part

Figure 7 is a plan view of the furniture of Figure 6 and

Figure 8 is a block diagram illustrating the operation of a bistable relay.

In the following figure designations, terms such as top, bottom, left, right, front, back, etc. refer exclusively to the respective exemplary representations and positions of the device and other objects selected in the figures. These terms are not meant to be limiting, i. H. in different working positions or by mirror-symmetrical design or the like, these references may change.

Figures 1, 6 and 7 show a furniture 1 with a furniture body 31 and a relative to the furniture body 31 movable furniture part 5 in different working positions, wherein the movable furniture part 5 in the particular embodiment shown here as an extendable and eänschiebbarer drawer with a front panel 9, a bottom 10 and two drawer side walls 6, 7 is formed.

To the furniture body 31, a supply component 33 is fixed to a rear wall 4, which is arranged between two side walls 2 and 3, together with a pickup component 32, which on a rear wall 8 of a

Drawer formed movable furniture part 5 is fixed, the device for transferring electrical energy 1 1 forms. With the customer component 32 is a Eiektrokabel 20 connected that the electrical energy from the pickup member 32 to the in the moving Möbeltei! 5 arranged electrically operated devices forwards.

The supply component 33 and the pickup component 32 are shown in detail in FIGS. 2 to 5.

The supply component 33 has a housing 12, which in the embodiment variant shown here is approximately in the form of a G, with a chamber 37 enclosed by four sides and a wall 38 projecting vertically from an extended side wall of the chamber 37 Wall 38 opposite side wall of the chamber are preferably two Kontaktbautei- Ie 23, 24 are arranged, which are connected to a Eiektrokabel 18 and are supplied via this Eiektrokabel 18 with electrical energy, for connecting the two contact members 23, 24 to the Eiektrokabel 18 this provided with two strands 21. The contact components 23, 24 of the supply component 33 are preferably arranged in recesses 28, 29 on the inside of the chamber 37.

In the chamber 37 of the housing 12, a coil 14 of an electromagnet with a magnetizable coil core 22 is arranged, which protrudes through a housing opening in a side wall of the chamber 37. The housing opening for the spool core 22 is arranged on the same chamber side as the contact components 23, 24 of the supply component 33.

The pickup component 32 essentially has a preferably flat attachment element 13 with which the pickup component 32 on the movable furniture part! 5 is attached. From the movable furniture part 5 facing away from the side of the fastener 13 is perpendicular to a leg 15 out. The contact components 16, 17 of the pickup component 32 are preferably resilient on the

Leg 15 arranged.

At the two contact elements 16, 17, a flat element 35 is preferably arranged, which is in the closed position of the movable furniture part 5 the coil core 22 of the coil 14 and upon activation of the coil

14 is attracted to this. The upper ends of the contact elements 16, 17 of the pickup member 32 are formed as contact heads 26, 27. In this case, the contact heads 26, 27 are preferably bent in a U-shape, so that they dip with the closed side of the U into the recesses 28, 29 of the housing 12 of the supply component 33, as soon as the contact elements 16, 17 of the pickup component 32 are arranged planar magnetizable element 35 by the coil core 22, magnetized by coil 14, is tightened.

The contact members 23, 24 are arranged so that when the moving furniture part! 5 is positioned in a Schiießsteilung, with the contact members 16,

17 of arranged on the movable furniture part 5 pickup member 32 can make an electrical connection.

The supply component 33 is further provided with an electrical control circuit 36 and a coupled thereto position detection device 25, 34, the Steuerschaitung 36 also with the coil 14 and

Coil core 22 existing electromagnet is coupled.

The position detection device 25, 34 is preferably designed as a device similar to a light barrier, wherein in the side of the housing chamber 37, in which the recess is provided, through which the coil core 22 of the coil 14 protrudes, a transmitter diode 25 is integrated, opposite to the housing wall 38, a receiver diode 34 is arranged.

To interrupt this light barrier, a leg 15 is provided on the pickup member 32, which is immersed in the furniture body 31 between the transmitter diode 25 and the receiver dome 34 in a Gehäusefreämachung of the housing 12 while retracting the movable furniture part 5 and thereby interrupts the light beam of the light barrier-like device. As a housing clearing here is the gap between the wall 38 of the housing and the chamber 37 to understand. The position detection device embodied as a light barrier-like device is coupled to the control circuit 36 in such a way that the control circuit 36 recognizes this interruption and then activates an electrical supply to the coil 14.

Preferably, this voltage supply can take place with a slight time delay, so that, for example, a self-closing device of a drawer system can reach the required end position without brakes. chen, before the supply member 33 with the pickup member 32 electrically comes into contact.

Due to the electromagnetic effect of the coil 14 of the coil core 22 is magnetized and attracts the magnetic element 35 at. Through the connection of the magnetic device 22, 35, the contact sets 16, 17 of the pickup 32 are pulled in the direction of the contact sets 23, 24 of the Versorgungsbauteiis 33 and contact the contact sets 23, 24 of the Versorgungsbauteiis 33. Thus, a power supply of the movable furniture part 5 on the The furniture body 31 in the supply component 33 arranged contact sets 23, 24, which are supplied via an electric cable 18 with electrical energy, allows the power supply of the coil 14 and the control circuit 36 is preferably via a separate Elektrokabei 19th

After switching off the supply voltage of the coil 14, the contact sets 16, 17 spring back into their starting position. The electrical connection between the contact sets 16, 17, 23, 24 is interrupted again.

In a particular embodiment, the contact sets 16, 17, 23, 24 are mechanically interlocked. As a result, after tightening the magnetic device 22, 35, the coil 14 can be de-energized without interrupting the electrical connection between the contact sets 16, 17, 23, 24. The mechanical detent is canceled again, for example, by the movable furniture part 5 is operated in "on-direction. Alternatively, a short stroke in the "to" direction could be used for mechanical unlatching In another alternative, the latching can be reversed by re-activating the coil 14.

As shown in Figure 8, this is possible in the manner of a bistable relay.

The trip unit detects the end position of the inserted drawer. The positive signal edge detection triggers the signal time delay, which provides a wipe pulse at the output after the preset time. Bezugszeicheniiste

1 furniture

2 side wall

3 side wall

4 rear wall

5 movable furniture part

6 drawer side wall

7 drawer side wall

8 rear wall

9 front panel

10 floor

11 Apparatus for transmitting electrical energy

12 housing

13 fastener

14 coil

15 thighs

16 contact component

17 contact component

18 electric cables

19 electric cables

20 electric cables

21 bifurcation

22 coil core

23 contact component

24 contact component

25 transmitter diode

26 contact head

27 contact head

28 recess

29 recess

31 furniture carcass

32 customer component

33 supply component

34 receiver diode

35 Metallic surface element

36 control circuit

37 chamber

38 wall

Claims

- -Claims

1 . Device for transmitting electrical energy between one on one

Furniture body (31) arranged Versorgungsbauteii (33) and one on a relative to the furniture body (31) movable furniture part (5), in particular a relative to the furniture body (31) movable drawer, arranged Abnehmerbauteäl (32), wherein the supply component (33) an electrome - Has chanic contact set (23, 24), which is coupled for transmitting electrical energy with an electromechanical contact set (16, 17) of the Abnehmer- component (32) in a closed position of the movable furniture part, characterized in that a, the supply component (33 ) a position detection device (25, 34) coupled to an electrical control circuit (36) and an electric magnet (14, 22) controllable by the electrical control circuit (36) and b. the Abnehmerbauteäl (32) has a magnetizable element (35), wherein the electromagnet (14, 30) and the magnetizable element (35) in a closed position of the movable MöbeSteils (5) facing, so that the contact sets (16, 17, 23 , 24) by an activation of the Elektromag- Neten (14, 22) by the control circuit (36) are brought into contact with each other.

2. Device according to claim 1, characterized in that the position detection device (25, 34) is formed as a light barrier-like device and the pickup member (32) in the closed position of the movable furniture part (5) is positioned so that one of the light barrier-like device defined light path is interrupted.

3. A device according to claim 2, characterized in that on the Ab- subscriber component (32) is provided a leg (15) for interrupting the light path defined by the light barrier device.

4. Device according to one of the preceding claims, characterized in that the magnetizable element (35) on the contact set (16, 17) of the Abnehmerbauteiis (32) is arranged and the contact set (16, 17) on the pickup member (32) in the direction of the contact set (23, 24) of the supply component (33) arranged to move.

5. Device according to one of the preceding claims, characterized in that the Versorgungsbautei! (33) has a housing (12) which is arranged on the furniture body (31) and the pickup member (32) has a fastening element (13) which is arranged on the movable furniture part (5).

6. Apparatus according to claim 5, characterized in that on the housing (12) of the supply component (33) recesses (28, 29) are provided, wherein the contact set (23, 24) of the Versorgungsbauteüs (33) on a housing inner side of the recesses ( 28, 29) is arranged and the contact set (16, 17) of the Abnehmerbauteiis (32) contact heads (26, 27) which for coupling with the contact set (23, 24) of the supply component (33) in the recesses (28 , 29) are submersible.

7. Device according to one of the preceding claims, characterized in that the contact sets (16, 17, 23, 24) are formed locked together.

8. Device according to one of the preceding claims, characterized in that the contact sets (16, 17) have spring-like extensions.

9. Apparatus according to claim 7 or 8, characterized in that the latching of the contact sets (16, 17, 23, 24) by activating the electromagnet (14, 22) can be canceled.

10. The device according to claim 9, characterized in that the latching of the contact sets (16, 17, 23, 24) can be canceled by activating the electromagnet (14, 22) in the manner of a bistable relay. - -

11.Vorrichtung according to any one of the preceding claims, characterized in that the electrical control circuit (36) comprises a delay unit which is connected so that a power supply of the electromagnet (14, 22) delayed in time to a signal of the position detection means (25, 34).

12. Furniture with a furniture body (31) and with at least one or more relative to the furniture body (31) movable Möbelteü / furniture parts (5), in particular with one or more relative to the furniture body sliding drawer / drawers, characterized by a device for

Transmission of electrical energy (11) according to one of the preceding claims.