WO2012084933A1 - Unité de commutation pour commuter un moteur d'entraînement d'un dispositif oscillant, dispositif pour un appareil ménager ainsi qu'appareil ménager - Google Patents

Unité de commutation pour commuter un moteur d'entraînement d'un dispositif oscillant, dispositif pour un appareil ménager ainsi qu'appareil ménager Download PDF

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Publication number
WO2012084933A1
WO2012084933A1 PCT/EP2011/073385 EP2011073385W WO2012084933A1 WO 2012084933 A1 WO2012084933 A1 WO 2012084933A1 EP 2011073385 W EP2011073385 W EP 2011073385W WO 2012084933 A1 WO2012084933 A1 WO 2012084933A1
Authority
WO
WIPO (PCT)
Prior art keywords
switching unit
drive motor
acceleration sensor
oscillating
domestic appliance
Prior art date
Application number
PCT/EP2011/073385
Other languages
German (de)
English (en)
Inventor
Torsten Böttger
Rainer Jurmann
Wolfram SCHUBERT
Jörg SKRIPPEK
Original Assignee
BSH Bosch und Siemens 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
Application filed by BSH Bosch und Siemens Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Publication of WO2012084933A1 publication Critical patent/WO2012084933A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/16—Imbalance
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/26—Imbalance; Noise level

Definitions

  • Switching unit for switching a drive motor of a vibrating device, device for a household appliance and household appliance
  • the invention relates to a switching unit, which provides the connection of a drive motor of a vibrating device of a household appliance. Furthermore, the invention relates to a device for a household appliance, which oscillates in operation, comprises a drive motor, a drive unit driven by the drive vibrating unit and a switching unit. The invention also relates to a household appliance for the care of laundry with such a device.
  • a drum for receiving laundry is driven by a drive motor.
  • the drum rotates about its horizontal axis of rotation and occur due to the loading of laundry imbalances. Excessive imbalances lead to wear of the components.
  • a sensor system which has components, some of which are mounted on the oscillating system and others on the housing of the household appliance. Such a sensor system measures the position of the oscillating system relative to the device housing.
  • a switching unit which provides a connection for a drive motor is known, for example, from DE 10 2005 060 358 A1.
  • a washing machine with a vibration sensor is known from DE 10 2005 037 144 B4.
  • the vibration sensor is designed as a printed circuit board component and arranged on the power electronics of the motor.
  • the power electronics are rigidly connected to the motor.
  • different power electronics adapted to the motor type must be designed with this concept.
  • it is disadvantageous in such a concept that for the use of a vibration sensor always different power electronics must be provided, which have an integrated vibration sensor.
  • a disadvantage of this concept is also that on the one hand, the power electronics with a program control and a power supply electrically coupled and on the other hand, the power electronics with a switching unit of the engine must be coupled to its control.
  • a switching unit which has the features of claim 1
  • a device for a household appliance which has the features of claim 7, and a domestic appliance with the features of claim 11.
  • a switching unit is used for switching a drive motor of a vibrating device of a household appliance and comprises an acceleration sensor for monitoring the vibration behavior of the vibrating device.
  • the oscillating device may in particular a tub and a rotatable drum disposed therein, for.
  • a drive motor of such a tub or such a drum may in particular be itself part of the oscillating device.
  • the drum is caused to rotate, with any laundry items present in it causing an imbalance which then causes the apparatus comprising the drum and the drive motor to vibrate.
  • the resulting vibration behavior is monitored by the acceleration sensor.
  • the switching unit is in particular designed to provide the wiring of the drive motor.
  • the switching unit With the wiring or the contacting of the drive motor power electronics with the engine components, in particular with windings and / or with other sensors arranged on the engine, such as a speedometer, produced via an electrical connection, which means of the switching device electrical switching operations on the drive motor can be performed ,
  • the switching unit thus also represents a connection unit of the drive motor.
  • the switching unit here also comprises the acceleration sensor.
  • the drive motor responsible switching unit is thus connected to an acceleration sensor such that a new switching unit is created, which allows both the electrical control operations of the drive motor, and includes the acceleration sensor with the required components for measuring and connections.
  • acceleration sensors known from the prior art can be used.
  • the integration of the acceleration sensor into the switching unit of the drive motor does not increase the number of required components with additional functionality (measurement of the movement sequence of the oscillating device).
  • the small number of parts improves the testability and interference immunity of the entire system.
  • the assembly of switching unit and acceleration sensor is simplified as a whole. It is particularly advantageous that the switching unit with the acceleration sensor can be used for different types of motor, while the plug connection for contacting the drive motor can remain unchanged. As a result, the complexity and variety of variants in the production of corresponding household appliances can be reduced.
  • the measurement of the vibration behavior of the vibrating device is contactless.
  • the switching unit is self-sufficient and, taken in isolation, can reliably and effortlessly monitor the oscillatory behavior of the oscillating device, without cooperation with other components mounted outside the vibrating device would be required.
  • the position of the switching unit relative to a possibly given housing in which the oscillating device is located is not relevant.
  • the acceleration sensor does not have to be complicatedly adjusted. A monitoring of the rest position of the vibrating device is eliminated.
  • the switching unit with the acceleration sensor is small, compact and inexpensive to manufacture, especially because the switching unit itself does not include power electronics for controlling the drive motor.
  • a common connection of the motor and an acceleration sensor with different types of power electronics can be provided in a particularly simple manner, in particular via only one common cable harness.
  • the acceleration sensor is arranged stationarily on a support of the switching unit.
  • the carrier of the switching unit is used in particular to secure the switching unit safely and with little effort on the vibrating device.
  • the carrier of the switching unit may be provided on the carrier attack sites for suitable fastening means.
  • the carrier may have holes or recesses for screws.
  • the carrier with the switching unit for example, can be firmly and securely connected to the drive motor of the oscillating device. Vibrations and vibrations of the vibrating device are thus unchanged and transmitted directly to the support of the switching unit.
  • the acceleration sensor is also arranged stationarily on the carrier, relative movements between the carrier and the acceleration sensor are reliably prevented.
  • the acceleration sensor is arranged at an angle to the main axis of the carrier on the carrier.
  • a main axis of the carrier is given in particular by a preferred orientation direction in the attachment of the switching unit on a drive motor of the oscillating device.
  • the rectangular support plate then has a longitudinal side and a transverse side.
  • the main axis may in particular be formed parallel to such a longitudinal or transverse side.
  • the acceleration sensor is oriented at a suitable angle to such a major axis.
  • the acceleration sensor itself is characterized by a further main axis, so that the main axis of the carrier with the main axis of the acceleration sensor includes a particular non-zero Wnkel.
  • the acceleration sensor has a substantially rectangular sensor housing, so that a main axis of the acceleration sensor can be defined by a straight line which runs parallel to one of the sides or edges of the housing. This embodiment allows to align the orientation of the acceleration sensor flexibly to a predetermined by the oscillating device coordinate system.
  • the switching unit as a whole can be arbitrarily aligned with its carrier relative to this coordinate system, the acceleration sensor can be suitably oriented in order to achieve the highest possible measuring accuracy.
  • imbalances of the oscillating device can also be influenced in particular by the direction of gravity (that is to say by the orientation of the oscillating device relative to the earth's surface), a preferred axis is defined by the direction of gravity and runs in this direction.
  • the acceleration sensor can be mounted on the carrier in particular so that an acceleration measurement in the direction of this preferred direction and a further acceleration measurement takes place perpendicular thereto.
  • the embodiment ensures a high measurement accuracy at the same time few adjustment steps.
  • the orientation of the carrier of the switching unit does not have to be selected appropriately. Assembly and calibration of the acceleration sensor are simplified as a whole.
  • the switching unit has a stamped grid, which serves for the electrical contacting of both the drive motor and the acceleration sensor.
  • the stamped grid is in particular made of an electrically conductive metal. It is particularly due to similar trained, parallel to each other, lamellar metal strips formed. Punching grids are simple and inexpensive to manufacture and allow a simple and secure contacting of the acceleration sensor and drive motor. The complexity of the switching unit is kept low overall, whereby a low susceptibility to errors is ensured.
  • the switching unit has a connector which serves both for electrical contacting of the drive motor and for electrically contacting the acceleration sensor.
  • a connector which serves both for electrical contacting of the drive motor and for electrically contacting the acceleration sensor.
  • the switching unit has a first connector for electrical contacting of the drive motor and comprises a second connector for electrically contacting the acceleration sensor.
  • the connectors can be formed similar. However, it can also be provided that the two connectors are structurally different from each other. This ensures an adapted to the respective type, needs-based contacting of acceleration sensor and drive motor.
  • the electrical contact can be interrupted individually for drive motor and acceleration sensor. This also facilitates a possible maintenance and a possible replacement of components.
  • Existing manufacturing processes can be ideally applied to the switching unit. An optionally already given for the contacting of the switching unit harness can be used in modified form. In particular, no new harness for the electrical connection is necessary.
  • a device for a domestic appliance can oscillate during operation and comprises a drive motor, a vibration unit drivable by the drive motor and a switching unit.
  • the oscillating unit may in particular be a drum for receiving laundry items, which rotates in operation about a preferably substantially horizontal axis of rotation.
  • the drum is preferably arranged in a tub, which is arranged in a housing of the household appliance and is connected by means of spring and damper elements with the housing.
  • a rotary motion of the drum occur, for. B. due to unevenly distributed in the drum laundry items, imbalances, through which the vibrating unit begins to vibrate.
  • the oscillating unit can be suitably mounted for this purpose.
  • the axis of rotation of the oscillating unit can in particular be parallel or perpendicular to the earth's surface.
  • An axis of rotation of the drive motor may in particular run parallel to the axis of rotation of the oscillating unit.
  • the drive motor is in particular an electric motor.
  • the switching unit is firmly connected to the drive motor.
  • the switching unit is thus connected to the drive motor so that relative movements between the switching unit and the drive motor are prevented in particular during rocking.
  • a particularly direct transmission of the vibration behavior of the drive motor to the switching unit is possible.
  • the oscillating unit preferably rotates about a third axis straight line.
  • the acceleration sensor is configured to detect a first acceleration along a first axial line. Then it is further preferred that the first axis line is perpendicular to the third axis line.
  • the acceleration sensor is designed to detect a second acceleration along a second axial line.
  • This second axial line then runs so that the third axis line is perpendicular to the first and second axial line.
  • the first and second axial line are perpendicular to each other.
  • the household appliance according to the invention serves to care for items of laundry and comprises a device according to the invention.
  • the household appliance is z. B. a washing machine, a tumble dryer or a washer dryer.
  • the oscillating unit preferably comprises a drum for receiving laundry items.
  • the household appliance can be designed in particular as a front loader or top loader. The laundry drum is thus aligned so that it rotates about an axis of rotation, which runs parallel or perpendicular to the mounting plane (or ground surface) of the household appliance.
  • Fig. 1 is a schematic representation of a household appliance; a perspective view of an embodiment of the invention switching unit; Fig. 3 shows a detail of a household appliance with a drive motor and a
  • Fig. 4A a predetermined by the location of a drum of a household appliance
  • 4B is a schematic plan view of a switching unit with a to
  • Fig. 1 shows a household appliance 1, which is designed for the care of laundry and in the embodiment is a washing machine.
  • the household appliance 1 comprises a vibrating unit with a drum 2, which is rotatable about an axis of rotation R perpendicular to the plane of the figure.
  • the household appliance 1 further comprises a drive motor 4, which is provided for driving the drum 2 in a manner not shown and is substantially rigidly connected to the oscillating unit.
  • a switching unit 5 is fixedly mounted, which comprises an acceleration sensor 6.
  • At least the drum 2 and the drive motor 4 belong to a vibrating device, which is movable relative to the housing of the household appliance 2 shown schematically as a frame.
  • the switching unit 5 is designed to perform switching operations on the drive motor 4, for example, after receiving control signals by a control unit or power electronics, not shown. In this way, the rotational movement of the drum 2 can be variably controlled. In particular, the acceleration sensor 6 can act on the switching unit 5 in such a way that the rotation of the drum 2 is reduced or even completely adjusted in the event of excessive vibrations or imbalances.
  • 2 shows a perspective view of the switching unit 5.
  • This comprises a carrier 7, which is substantially rectangular in its basic shape and has screw holes 14, via which the switching unit can be fastened on another component or another assembly by means of screws.
  • the connecting line through the two screw holes 14 defines a major axis H of the carrier.
  • the switching unit 5 further comprises a plurality of connectors 8, via which the drive motor 4 and the acceleration sensor 6 can be electrically contacted.
  • the acceleration sensor 6 is seated in a rectangular housing and is fixedly mounted on the carrier 7.
  • the resulting switching unit 5 is small overall, compact and has a small number of components. About the screw holes 14, it is easy and uncomplicated to the drive motor 4 fastened.
  • Fig. 3 shows the switching unit 5, which is fixed to the drive motor 4.
  • the specified coordinate system with the axes x and z are the orientation of the image detail shown in Fig. 3 within the household appliance 1 again. If the household appliance 1 is ideally set up on a supporting surface, the axis z runs perpendicular to the ground or parallel to the direction of the acting gravitation. The motor axis M then runs perpendicular to these two axes x and z, ie perpendicular to the image plane.
  • the carrier 7 of the switching unit 5 is within the plane defined by the axes x and z plane; it is thus perpendicular to the motor axis M.
  • the main axis H of the carrier passing through the screw holes 14 lies in the plane of the drawing and assumes a non-zero angle with respect to the axes x and z.
  • the carrier 7 is fixedly attached to the drive motor 4 via screws 9, which are seated in the screw holes 14, so that the switching unit 5 follows in the case of the vibration of the drive motor 4 whose oscillatory motion is one to one.
  • the rectangular housing of the acceleration sensor 6 is aligned with respect to its housing edges parallel to the axes x and z.
  • FIG. 4A again shows the coordinate system known from FIG.
  • the axis of rotation R of the drum 2 is drawn, which is perpendicular to the axes x and z.
  • a coordinate system is defined, which is given by a desired position of the household appliance on the earth's surface.
  • the switching unit 5 is arranged in a certain manner.
  • the major axis H assumes a non-zero angle to the axes x and z.
  • the switching unit 5 is mounted on the support 7 in such a way that the contour sides of its basic shape, which is rectangular in plan view, extend parallel to the axes x and z, respectively.
  • a longitudinal side of the switching unit 5 is parallel to the z-axis, while a transverse side is parallel to the x-axis.
  • a main axis B of the switching unit 5 can be defined, which is given by a straight line parallel to the longitudinal side. This straight line thus runs parallel to the z-axis and lies completely in the xz-plane.
  • the main axis B of the acceleration sensor 6 encloses an angle a with the main axis H of the carrier 7. This angle a is different from zero in the exemplary embodiment. This arrangement is suitable for an optimal adjustment of the acceleration sensor 6 in order to measure the vibration behavior of the drum 2 or the drive motor 4.
  • FIG. 4B also schematically shows a stamped grid of the switching unit 5.
  • a first part of the parallel metal slats forms a motor terminal 12 for the drive motor 4.
  • Another part of these slats forms a sensor terminal 13 for the acceleration sensor 6.
  • the acceleration sensor 6 is contacted directly via contact points 1 1 with the lamellae of the lead frame 10 electrically.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

L'invention concerne une unité de commutation (5) qui produit le raccordement d'un moteur d'entraînement (4) d'un dispositif oscillant (2, 4) d'un appareil ménager (1), l'unité de commutation (5) présentant un capteur d'accélération (6) pour surveiller le comportement oscillant du dispositif oscillant (2, 4). L'invention concerne également un dispositif pour un appareil ménager, lequel dispositif oscille en service, ainsi qu'un appareil ménager comprenant un tel dispositif.
PCT/EP2011/073385 2010-12-22 2011-12-20 Unité de commutation pour commuter un moteur d'entraînement d'un dispositif oscillant, dispositif pour un appareil ménager ainsi qu'appareil ménager WO2012084933A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010063945A DE102010063945A1 (de) 2010-12-22 2010-12-22 Schalteinheit zum Schalten eines Antriebsmotors einer schwingenden Vorrichtung, Vorrichtung für ein Haushaltsgerät sowie Haushaltsgerät
DE102010063945.1 2010-12-22

Publications (1)

Publication Number Publication Date
WO2012084933A1 true WO2012084933A1 (fr) 2012-06-28

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PCT/EP2011/073385 WO2012084933A1 (fr) 2010-12-22 2011-12-20 Unité de commutation pour commuter un moteur d'entraînement d'un dispositif oscillant, dispositif pour un appareil ménager ainsi qu'appareil ménager

Country Status (2)

Country Link
DE (1) DE102010063945A1 (fr)
WO (1) WO2012084933A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014217943A1 (de) 2014-09-08 2016-03-10 BSH Hausgeräte GmbH Verfahren zum Betrieb einer Waschmaschine mit einem Drucksensor sowie hierzu geeignete Waschmaschine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012222196A1 (de) 2012-12-04 2014-01-02 E.G.O. Elektro-Gerätebau GmbH Sensoreinrichtung und Elektrohaushaltsgerät mit einer solchen Sensoreinrichtung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060185097A1 (en) * 2005-02-18 2006-08-24 Diehl Ako Stiftung & Co. Kg Internal unit, suspended such that it can vibrate, of a laundry treatment machine, method for controlling a laundry treatment machine, and use of an electronic sensor in an internal unit
DE102005060358A1 (de) 2005-12-16 2007-06-21 BSH Bosch und Siemens Hausgeräte GmbH Statorendscheibe für einen Kommutatormotor und Kommutatormotor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060185097A1 (en) * 2005-02-18 2006-08-24 Diehl Ako Stiftung & Co. Kg Internal unit, suspended such that it can vibrate, of a laundry treatment machine, method for controlling a laundry treatment machine, and use of an electronic sensor in an internal unit
DE102005037144B4 (de) 2005-02-18 2007-04-19 Diehl Ako Stiftung & Co. Kg Schwingfähig aufgehängtes Innenaggregat einer Wäschebehandlungsmaschine mit einem Schwingungssensor
DE102005060358A1 (de) 2005-12-16 2007-06-21 BSH Bosch und Siemens Hausgeräte GmbH Statorendscheibe für einen Kommutatormotor und Kommutatormotor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014217943A1 (de) 2014-09-08 2016-03-10 BSH Hausgeräte GmbH Verfahren zum Betrieb einer Waschmaschine mit einem Drucksensor sowie hierzu geeignete Waschmaschine
WO2016037877A1 (fr) 2014-09-08 2016-03-17 BSH Hausgeräte GmbH Procédé permettant de faire fonctionner un lave-linge comprenant un capteur de pression et lave-linge adapté audit procédé

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Publication number Publication date
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