KR20100024365A - Suspension, washing machine and washing machine steering process - Google Patents

Abstract

PURPOSE: A suspension, a washing machine, and a steering process of the washing machine are provided to deform damping and spring properties of the suspension by connecting multiple actuators to a sensor, a damping device, and a spring device, respectively. CONSTITUTION: A suspension is composed of a drum housing(2), a sensor(8), fixing elements(4), and multiple actuators. The fixing elements have spring devices. The actuators are connected to damping devices and the spring devices, respectively. One or more actuators deform damping and spring properties of the damping devices depending on a steering signal.

Description

SUSPENSION, WASHING MACHINE AND WASHING MACHINE STEERING PROCESS}

The present invention relates to a suspension, in particular a suspension for elastic suspension of the drum inside the washing machine, a washing machine, and a process for steering the washing machine.

EP 0 972 874 B1 describes a washing apparatus in which the drum is mounted in a rotatable form in the housing of the washing machine by suspension. The washing apparatus includes, among other things, a sensor device in the form of a magnetic sensor for detecting the change of position of the drum, and the captured signal emitted from the magnetic sensor is transmitted to the steering device for the next processing. The operation of the washing machine is controlled (steering) in accordance with the degree of displacement of the captured drum. The magnetic sensor device is composed of a hall element and a magnet. When the position of the drum in the washing apparatus is changed, the hall element and the magnet move toward each other, and through this, it is possible to grasp the position change of the drum which may occur due to the elastic suspension state of the drum. In addition, it is possible to calculate the pressure (mass) applied to the drum in the state of laundry and washing liquid.

EP 1 243 686 A1 describes a steering arrangement for controlling the vibration of a washing machine drum when the drum is suspended inside the washing machine housing by a spring element. In the lower part of the washing machine drum, damping elements are arranged which are connected to the housing of the washing machine. The damping elements inelastically connected to the washing machine's housing have one vibration sensor for capturing the vibration of the drum, and the electric signal emitted from the sensor is transmitted to the analysis device for signal analysis, and the washing machine identified through The damping characteristic of the damping device is adjusted according to the vibration degree of the drum.

DE 10 2004 047 999 A1 discloses a friction damping device for a washing machine, wherein the washing machine has a vibratory drum mounted to the washing machine housing at the upper part of the washing machine via a spring element. Damping elements at the bottom of the drum connect the drum and the bottom of the washing machine housing. The damping element is a friction element, and the damping characteristic is modified according to the number of revolutions of the drum driving motor captured or the number of revolutions of the washing drum itself to achieve an appropriate damping strength for reducing the vibration amplitude of the washing drum.

DE 10 2005 037 144 A1 discloses an internal assembly of a washing machine which is susceptibly suspended, wherein a washing drum suspended by a spring element in the upper part of the washing machine housing is provided by an electric motor in a conventional manner. Driven. The lower part of the washing drum has damping elements inelastically connected to the washing drum and fixed to the bottom of the washing machine housing. Vibration of the washing drum is captured when the washing machine is running through at least one sensor, and the captured signal is transmitted to the steering device. The damping characteristics of the damping element are adjusted according to the vibration level of the captured drum.

In some cases of the suspension and damping device based on the above-mentioned conventional technology, the vibration generated by the drum of the washing machine may not be sufficiently damped, and if at least a certain operating state is achieved, a strong vibration occurs in the washing machine, so that the laundry may be dehydrated. In such cases, the required high enough speed of the drum is not easily achieved. In this type of vibration, the vibration amplitude of the washing drum is also significantly increased.

It is an object of the present invention to achieve a suspension for a drum in a laundry machine, a washing machine, and a steering process suitable for the drum in which the vibration generated by the drum in the entire operating area of the laundry machine is optimal.

This object is achievable through a suspension having the features specified in claim 1, a laundry machine having the features specified in claim 7, and a laundry machine steering process having the features specified in claim 13.

In order to achieve this object, the present invention first relates to a suspension for a laundry machine. Washing apparatus based on the present invention comprises a drum housing elastically mounted through the suspension in the main housing and a sensor device for capturing the movement of the drum housing and transmitting the capture signal to the steering device, wherein the capture signal The received steering device transmits a steering signal based on the captured signal analysis result. The suspension is connected to the damping element and the damping element and at the same time arranged in the common housing, with a fixed element with a spring element, which allows the flexible arrangement of the drum housing, and an actuator and a spring element connected with the damping element. It consists of another actuator. At this time, the two actuators can be connected to the sensor element, at least one of the two actuators should be able to modify the damping characteristics of the damping element or the spring characteristics of the spring element according to the steering signal emitted by the steering apparatus.

In accordance with the present invention, the movement and position of the drum during the operation of the washing machine and the rotation of the drum can be captured, and the movement of the drum can be grasped by analyzing the signal of each sensor in an appropriate manner. On the basis of the signal of the analyzed sensor, for example, the resonance of the washing machine and the rotation of the drum can be captured. The fixed element is controlled according to the movement of the captured drum, and the characteristics of the spring and damping are affected to minimize the movement of the drum and the vibration of the washing machine drum accordingly. In particular, it is possible to capture resonant phenomena that may occur during operation of the drum and the captured resonant phenomena can be controlled by appropriate measures, thereby preventing the drum vibration amplitude accompanying the resonant phenomenon from becoming extremely large. As a result, the drum or the washing machine itself is not vibrated excessively and the safety in the entire operating area of the washing machine is assured, which is guaranteed at any rotational speed the drum can achieve.

In particular, the fixed element is manipulated according to the position of the captured drum, and a reaction force, in particular, a damping force, is generated to minimize the position of the drum or the general movement of the drum. The reaction force for damping the vibration of the drum as described herein acts at various points of the drum with the help of a plurality of fixing elements. Through these fixing elements, the drum in the drum housing is also elastically fixed to the main housing of the washing machine. Actuators (actuators) connected to the stationary element usually control the characteristics of the stationary element such that an appropriate force acting on the drum of the washing machine is applied to the drum, and hence the vibration, which is counteracting the movement of the drum.

By capturing possible resonances, it is possible to prevent excessively large vibration amplitudes during drum operation (rotation). As a result, the size of the washing machine can be reduced. Strong vibrations can be significantly prevented and effectively reduced.

Details are set forth in the claims.

The fixing element of the suspension is elastically connected to the drum housing by the first connecting element and the drum housing by the second connecting element, so that appropriate support is achieved between the main housing and the drum by the fixing element.

At this time, one actuator for adjusting the damping force of the damping element may be mounted, and the other actuator for adjusting the spring force of the spring element may be inspected.

The damping device may be actively connected to the spring device, and the damping characteristic and the deformation of the spring characteristic by the first actuator and the second actuator may occur independently. As a result, more precise and fine adjustment of the damping and spring characteristics is possible independently of each other.

The suspension further comprises one sensor device mounted on the damping device for grasping the operating condition of the damping device, and another sensor device mounted on the spring device for grasping the operating condition of the spring device. These two sensor devices can be sent to the steering device of the washing machine to transmit a capture signal to be processed there.

Secondly, the present invention provides a drum housing elastically mounted to a main housing of a washing machine, a sensor device for capturing movement of the drum housing and transmitting a capture signal, a steering device for analyzing the capture signal and emitting a steering signal on the base thereof; A washing device comprising fixing elements for elastic mounting of a drum housing, a damping device and an actuator in active connection with the device, a spring device and another actuator in active connection with the device. In this case, at least one of the two actuators deforms the damping characteristic of the damping apparatus and the spring characteristic of the spring apparatus according to the steering signal of the steering apparatus.

The damping device and the spring device can be mounted in one common housing and the suspension can be elastically connected to the main housing via the first connecting element and to the drum housing via the second connecting element.

In particular, the damping device, the spring device and the two actuators can be mounted in one common housing, and the damping device and the spring device can be actively connected.

The drum housing and the fixing device can form a vibrating system, and the steering device can be configured so that the two actuators can independently adjust the resonance frequency deformation of the vibrating system when the damping state and the spring state change.

The fixing element may include a first sensor device belonging to a damping device mounted for grasping the operating condition of the damping device and a second sensor device belonging to a spring device mounted for grasping the operating condition of the spring device.

The sensor device may be a sensor device capable of multidimensional measurement.

The present invention relates to a steering process of a laundry machine, comprising a drum housing elastically mounted to the main housing of the laundry machine by suspension and a sensor device for detecting the movement of the drum housing. At this time, the steering process is composed of the following steps. Suspension of the suspension by identifying the movement of the drum housing, transmitting the captured signal, comparing the received signal with a predetermined reference value, transmitting a steering signal for suspension when the captured signal exceeds the reference value, and controlling the suspension by the steering signal. At least one of the characteristic and the spring characteristic is modified in a predetermined manner.

Drum housings and suspensions (fixing elements) may constitute a vibrating system. The measuring step may include resonant frequency grasp of the vibrable system, and at least one of the damping characteristic and the spring characteristic may be modified in order to change the resonant frequency of the vibrable system in the steering step.

The transmitting step may also include transmitting a steering signal according to at least one of the pre-stored standard areas in order to modify the resonance frequency of the vibrable system in a predetermined manner.

The invention is described in detail below by way of examples and in detail by way of the drawings.

Hereinafter, the suspension for the washing machine is described in detail by way of examples.

1 schematically shows a washing machine in the form of a drum washing machine with fixing elements for fixing the suspension.

1 shows that the washing machine W is provided with a main housing 1, in which the main housing 1 is shown only in the form of a fixed point for fixing various components of the washing machine W. FIG. It is.

The washing apparatus W is rotatably provided in the drum housing 2 and includes a washing drum 3 in which laundry is loaded during the washing process. Washing drum (3) which is provided to be rotatable is rotated in various rotational directions and various rotational speeds by the electric motor in a publicly disclosed manner. In FIG. Only the figure fixed at 1) is shown in a simplified form.

The drum 3 is fixed to the main housing 1 of the washing machine W by means of a drum housing 2 having a plurality of fixing elements 4, that is, to be vibrated (elastically). In the case of FIG. 1, four fastening elements 4 are distributed around the main housing 2 of the drum 3, which are arranged to allow movement of the drum housing 2 and the drum 3. It constitutes a suspension (5) to enable. The fixing element 4 may also be referred to as a support element which achieves proper support between the main housing 1 of the washing machine W and the drum housing 2.

The presence of a plurality of fastening elements 4 allows the distance of the drum housing 2 to the main housing 1 of the washing machine W to be elastic and the drum housing 2 is mounted to be movable in three directions. The washing drum inside the housing 3 is rotatably provided with respect to the drum housing 2 and is driven by the electric motor M.

The washing machine W also consists of a central steering 6. This device is responsible for the overall control of the washing machine (W), in particular for the operation of the motor (M) and the control of a number of fixing elements (4) during the various washing process and dehydration process. The steering of the stationary element 4 is accomplished by the steering device 6, which steers the characteristics of the stationary element 4 to suit the purpose. The center steering 6 is connected to all fastening elements 4 via all steering units 7. One steering unit 7 is assigned to every stationary element 4, which is preferably arranged at or near the stationary element 4.

In the case of the washing apparatus W shown in FIG. 1, the apparatus includes a device for capturing movement of the drum housing 2 and the drum 3. The movement of the drum 3 and the drum housing 2 of the washing machine W is usually caused by the irregular distribution of the laundry in the drum 3 during washing. This movement is multi-dimensional, such as a magnetic sensor device. The measurement can be captured by a sensor 8. The movement of the drum 3 and the drum housing 2 of the washing machine W means, among other things, rotation and inclination (swing) in three directions.

In the case of the embodiment shown in FIG. 1, the magnetic sensor device comprises a magnetic sensor 9 capable of multidimensional measurement, which is fixed to the main housing 1 of the washing machine W. The magnetic sensor device includes a device 10 for generating a magnetic field, which is arranged in the drum housing 2 so that the magnetic sensor moves when the drum housing 2 moves with respect to the main housing 1 of the washing machine W. (9) cause relative movement. The device 10 generating the magnetic field may be a permanent magnet or a battery magnet, and in particular may generate a magnetic field directed in multiple directions.

In the embodiment shown in FIG. 1, the device 10 generating the magnetic field is fixed to the drum housing 2 and the magnetic sensor 9 is fixed to the main housing 1 of the washing machine W. On the basis of the present invention, arrangements other than these arrangements are also acceptable, in particular a device 10 generating a magnetic field is fixed to the main housing 1 of the washing machine W, on the contrary a magnetic sensor 9 is attached to the drum housing 2. It is also possible to arrange in the form of fixed (moving and inclined in three directions) moving together with the movement of the drum housing 2 during the operation of the washing machine (W).

In both cases, the magnetic sensor 9 should be connected to the central steering unit 6, and the device 10 generating the magnetic field when using an electromagnet should also be electrically connected to the central steering unit 6.

The central steering device 6 should first of all have an analysis device 11 for analyzing the transmission signal of the magnetic sensor 9. The analyzing device 11 is a magnetic sensor device, that is, a device for receiving and analyzing a transmission signal of the magnetic sensor 9. The magnetic sensor device is preferably arranged at the end of the drum housing 2 where the laundry is loaded onto the drum 3.

The magnetic sensor device captures all movements of the drum housing 2 (and consequently the drum 3) relative to the main housing 1 of the washing machine W when the washing machine W is operated. The captured signal transmitted from the magnetic sensor device reflects the change appearing in the magnetic field in three directions and is processed by the electroanalyzing device 11 of the central steering device 6 and converted into information indicative of the movement of the drum. The analysis result of the captured signal transmitted by the magnetic sensor device may be stored in the analysis device 11 at least temporarily.

However, the present invention is not limited to the use of the magnetic sensor device and the magnetic sensor 9 as the sensor 8 capable of multi-dimensional measurement, and the movement of the drum housing 2 in three directions is different from that of the sensor 8. Can also be captured.

Capturing three-dimensional movement and rotational movement of the drum housing 2 is possible by means of a number of approach sensors (not shown). When the washing machine W is operated, continuous interval measurement is performed through the proximity sensor, and in this case, the measurement result is transmitted to the central steering unit 6 for analysis in the form of an electronic signal. This type of approach sensor also allows contactless measurement of the three-dimensional movement of the washing drum 2 with respect to the main housing 1 when the washing machine W is operated. In this case, at least one approach sensor should be provided, The sensors should be distributed in the main housing 1 of the washing machine W.

In addition, there is a method of visually capturing the three-dimensional movement of the drum housing (2). Through a light emitter, which is preferably fixed to the main housing 1, one light stem shines on a reflecting surface disposed in the drum housing 2, and the light sensor mounted on the main housing 1 detects the light. . The emission signal of the light sensor is also sent to the central steering unit 6 and processed there. Through this type of visual sensor (not shown), contactless measurement of the three-dimensional movement of the washing drum 3 is possible.

Another method for obtaining information about the movement and vibration of the drum 3 and the drum housing 2 is to specify the amount of water added to make the wash liquor, and to determine the weight component (mass There is a way to measure).

Regardless of the type of sensor, the capture of three-dimensional movements of the drum housing 2 and the analysis of the sensor signals as described above affect the shaking of the drum housing 2 and the drum 3 in an advantageous manner and in particular the shaking Contribute to influencing the fixing element 4 in a manner intended to be reduced.

According to the movement of the drum housing 2 measured for this purpose, a steering signal is generated when the washing machine W is operated, and this signal is transmitted to all steering devices 6 of the fixing element 4. The fixing element 4 is adjusted or deformed via the steering signal.

Hereinafter, the configuration and operation of the fixing element 4 will be described based on FIG. 2.

FIG. 2 schematically shows the arrangement and configuration of the fixing element 4 connecting between the drum housing 2 and the main housing 1 of the drum 3 of the washing machine W. As shown in FIG.

The steering unit 7 in the housing is also preferably arranged in the main housing 1 of the fastening element 4, in which a connection to the central steering device 6 is achieved via a connecting line 13. This connection line 13 transmits a signal from the steering unit 7 to the central steering device 6 and also receives an indication (such as a command signal).

The fastening element 4 is connected on the one hand with the main housing 1 of the washing machine W via one connecting element 14 and on the other hand with the drum housing 1 via the other connecting element 15. 2). The fixing elements 4 are supported by the two connecting elements 14 and 15 in the main housing 1 of the washing machine W, supporting the drum housing 2 together with the drum 3.

The fastening element 4 has a damping device 16 and a spring device 17 inside the housing 12, which are the longitudinal direction of the fastening element 4 and the longitudinal direction of the two connecting elements 14 and 15. That is, they are arranged back and forth in the direction of action of the force. The damping device 16 may be, for example, an impact buffer device, a friction buffer device, a hydraulic damper, a magnetic damper, a capacity buffer device, and the like. Thus, the fixing element 4 for the washing machine W is present in one unit.

In FIG. 2, an operating device or actuator 18 is arranged in the damping device 16 of the stationary element 4, and according to the technical characteristics of the damping device 16 through the operating device or actuator, Damping characteristics can be adjusted and changed. The actuator 18 is electrically connected to the steering unit 7, and as a result, the command signal emitted from the central steering unit 6 and modified to suit each actuator in the steering unit 7 is applied to the damping device 16. This can be achieved by modification of special characteristics.

In the same way, the spring device 17 also includes a second operating device or actuator 19 to manipulate or modify the characteristics of the spring device 17, that is, the spring property, through the operating device or actuator. The actuator 19 is also electrically connected to the steering unit 7 of the stationary element 4 so that a command signal can likewise be realized as a modification of the spring characteristic of the spring device 17.

In the following, the manner of action of the fixing element 4 is described based on FIG. 2 and the configuration specified above is described in more detail. In this case, it is assumed that a plurality of fixing elements 4 having the same shape are disposed on the drum housing 2 (and the main housing 1 of the washing apparatus W). In the case of FIG. 1 four fastening elements 4 are shown. Each fixing element 4 has the same structure, and each fixing element 4 is controlled by the characteristics (damping, dampening) of the fixing element 4 according to the operating conditions of the washing machine (W). The operating condition reflects the vibration and general movement (including rotation) of the drum housing 2 and the drum 3 of the washing machine W captured by the sensor 8.

The operation of the washing machine W encompasses two kinds of operations. One is a washing process with a low rotational speed, in which the drum 3 is turned in the opposite direction to the existing rotation direction by the control of the appropriate electric motor M in a predetermined manner.

On the other hand, the operating condition of the washing machine is a process achieved by the operation of the electric motor (M) to achieve a high rotational speed, wherein the rotation speed required for the dehydration process of the drum (3), that is, the number of rotations during pure laundry operation To achieve significantly higher rotational speeds. However, at the start of the dehydration process of the washing machine (W), the position of the laundry is distributed by chance in the drum (3), so the probability of irregular distribution is high and the contents of the drum (3) are imbalanced. As a result, the dehydration process A high amplitude is caused and vibrations appear that cause the drum 3 and the drum housing 2 to move and rotate additionally (three-dimensionally).

In the washing machine W, the drum housing 2, the drum 3 (and the laundry in the drum 3) and the fixing element 4 can be elastically mounted by the fixing element 4, so called spring-unit- System, that is, a vibrable system. In particular, as described above, each viable system exhibits an unacceptable resonant vibration at least once, where the vibration amplitude of the drum housing 2 exhibits a maximum value. Therefore, the characteristics of the stationary element 4 may be pre-set so that the high vibration amplitude of the drum housing 2 does not achieve a region in which a resonant state is generated (a resonance frequency region of a vibrable system) or at least can be subtracted within the region. Must be specified in. The predefined category is determined according to the constituent conditions of the washing machine W (for example, deflection of the drum housing 2).

In the case of fixed and undeformable fixed elements, the damping is controlled for safety so that sufficient damping is possible in the resonant state, and the optimum damping condition is not always achieved under other operating conditions.

The construction of the fastening element 4 in accordance with and described in the present invention makes it possible to appropriately modify the two main features of the fastening element 4, namely the damping and spring characteristics.

The central steering device 6 calculates the operating state of the vibrable system, ie the movement of the drum 3 and the drum housing 2 including the laundry, from the measured values captured by the sensor device 8 (which is capable of multidimensional measurement). The steering signal is transmitted in an appropriate manner, whereby the damping and string characteristics of the fastening element 4 are manipulated. The steering signal is transmitted to each steering unit 7 of the stationary element 4 and transmitted by this steering unit 7 and directly of each actuator (two actuators 18 and 19) provided by the stationary element 4. Signal processing for manipulation is done.

The actuators generate deformations of the damping and spring characteristics of each holding element 4 to produce a reaction force acting in the opposite direction of the vibratory movement of the drum housing 2. At the same time the properties of the fixing element 4 are also adjusted so that sufficient vibration uncoupling is achieved between the drum housing 2 of the washing machine W and the main housing 1. Each force transfer occurs through two connecting elements 14 and 15 (see FIG. 2).

The center steering apparatus 6 performs signal processing and the release of the steering signal based on the vibration state of the drum housing 2 captured. In this case, not only the first actuator 18 of the damping device 16 but also the second actuator 19 of the spring device 17 are manipulated in an appropriate manner to modify each characteristic to suit the purpose. It is also possible to deform only one of the damping characteristics or the spring characteristics of each holding element depending on the movable state (vibration state) captured by the drum housing 2. In this case, the corresponding steering signal of the central steering device 6 contains information that only the actuators that cause the desired deformation are manipulated. Actuators 18 and 19 are separate and can be controlled independently.

According to the measured operating state, there is a method in which the fixing elements 4 individually control the deformation of each of the movable parameters (damping characteristics and spring characteristics) to generate deformation.

In this connection, the central steering device 6 is provided with a storage device to designate appropriate steering signals on the basis of the previously stored standard areas so that the actuators 18 and 19 can react to the reaction forces required by each operating state of the drum housing 2. Can be achieved through: At this time, it is also possible to correct the operating state of the cleaning device (W) in which the resonance phenomenon or the vibrating system approaches the resonance frequency.

Due to the shape and size of the vibration amplitude, when the washing machine W is designated to operate close to the resonance frequency, the movement of the drum housing 2 near the resonance frequency and within the resonance frequency region, in particular, the vibration amplitude is minimized. Can be. According to each embodiment of the damping device and the spring device of the fixing element 4, frictional force, damping force, spring force deformation or magnetic force can be used as reaction force. The deformation of the damping device 19 and the spring device 17 of the fixing element 4 need not be phased when properly controlled by the actuators 18 and 19, or a predetermined step and a predetermined time This can be achieved through a variation (maximum or minimum change per unit time).

The central steering unit 6 obtains sufficient information related to the amount of laundry and the amount of inflow water calculated through the flowmeter after the washing machine W is operated, and obtains information related to the adjustment of the damping characteristics and the spring characteristics of the actual fixing element 4. Therefore, it is preferable to at least approximate the expected vibration amplitude of the vibration-capable system described above by referring to the previously stored standard area.

Since the influence of the central steering device 6 on the characteristics of the stationary element 4 is based on actual measurements of the movement of the drum housing, the magnitude of the movement, in particular the vibration amplitude of the drum housing 2, can be controlled.

In this way, problems related to resonant frequency (vibration amplitude) can be offset by this manipulation, and especially when the resonant frequency changes when the vibrating system is running. This is possible because the laundry contains significantly more water at the beginning of dehydration than when full-scale dehydration proceeds and the total weight of the vibrable system changes.

The influence of the central steering device 6 on the damping and spring characteristics of the stationary element 4 through steering also includes transforming the resonant frequency into lower or higher magnetic pole frequencies. This is achieved through a modification of the operating parameters of the stationary element 4. In other words, the direction in which the resonant frequency (at least one of the plurality of resonant frequencies) of the system capable of vibrating the damping characteristics and the spring characteristics of the fixing element 4 when the washing apparatus W is operated is determined in a continuous or stepwise manner. It is necessary to ensure that the desired resonant frequency and the desired spacing of the vibrable system described above are maintained at all times during operation (ie, operation involving mechanical vibration stimulation that occurs during the operation of the washing machine) while being deformed to a higher or lower frequency. do.

As a result, when the difference in resonant frequencies is calculated through the analysis of the measured values of the sensor device 8, the resonant frequencies are changed to the rotational speed of the actual drum through the deformation corresponding to the purpose of the damping characteristics and the spring characteristics of the fixed element 4. The resonance frequency can be adjusted to maintain a predetermined minimum interval for the stimulus frequency. In this connection, the rotational speed of the electric motor M for driving the drum 3 is also preferably referred to a previously stored standard region at least temporarily. The spin speed can also be achieved. Through this operation of the electric motor (M) can also be included in the steering and steering process.

In deforming the spring characteristic of the spring device 17, for example, the spring constant or spring force (depending on the shape and other properties of the spring device) can be deformed via the actuator 19.

Since the vibrable system exhibits a large number of various resonant frequencies, such as the arrangement of the drum housing 2 of the washing machine W, the present invention is ideal in that the resonant frequency falls within the high dehydration speed range to be adjusted through the vibrating stimulus. Consider multiple resonance frequencies as they are.

According to the present invention, the damping device 16 and the spring device 17 are mounted on the same housing 12 so that the fixing element 4 is a damping and spring-capable part. With the relevant adjustments, the vibrations of the drum housing 2 and the drum 3 and the laundry can be safely controlled and in particular limited. This results in sufficient damping on the one hand and, on the other hand, higher or lower resonant frequencies of the vibrable system in the desired manner and depending on the operating state of the captured washing machine (W), through the appropriate modification of the damping and string characteristics. This is possible because the resonant frequency is modified to move at the frequency. In this way, the vibration of the drum housing 2 is minimized, so that the running of the washing machine W under all the pressure conditions that can be applied to the drum 3 and at all running speeds that the drum 3 can achieve Since less noise is generated and the vibration amplitude of the drum housing 2 is reduced, the overall size of the main housing 1 of the washing apparatus W can be reduced.

The stationary element 4 acts as a mixing element, in which the damping device 16 and the spring device 17 and the actuators (two actuators 18 and 19) required for the deformation of both are provided in one common housing 12. Since the fixed element 4 can be embodied in a more compact form, the internal space, mass and cost can all be reduced, because the production of the fixed element can be achieved by using multiple fixed elements of the same type. The price per unit can be lowered due to increased production, which results in a reduction in weight due to the use of mixed elements with damping and spring characteristics, as well as a reduction in the mass production of these elements. Furthermore, it is also possible for an actuator to integrate both functions and perform both damping and spring in accordance with the present invention. With regard to control and can be adjusted.

When the actuators are separately mounted as shown in FIG. 2, the actuators may be mounted in housings independent from each other.

Based on the present invention, the frequency reference of the vibrable system described above, in particular the resonant frequency of this system, is modified or intentionally modified, which is adapted to the operating conditions based on the measured values captured by the sensor device 8. This is done through This can be done in advance or at the time when vibration is confirmed, depending on the pressure exerted on the drum 3 (pre-captured). In particular, the prevention of resonance through the modified frequency reference and the modification of the resonance frequency enables the safe operation of the washing machine, which is limited to the minimum as a result.

As a result, the drum 3 of the washing machine W, which is the target, can achieve a quiet vibration state under all rotational speeds and all pressure conditions.

3 shows the arrangement and application of the fastening element 4 according to the second embodiment of the invention.

3 shows the same components and elements as those of FIG. 2 with the same symbols, and thus detailed descriptions of the components and elements are omitted.

The fastening element 4 according to the second embodiment and the schematic of FIG. 3 encompasses the same parts as the fastening element 4 of the first embodiment shown in FIG. 2. In addition, the fixing element 4 according to the second embodiment encompasses the sensor devices 20 and 21.

The first sensor device 20 is mounted on the damping device 16 or is directly active connected to the damping device 16. The first sensor device 20 contributes to the capture of the operating environment (operation conditions) or to the adjustment of the damping device 16. Based on the sensor signal emitted by the first sensor device 20 transmitted to the central steering device 6 through the steering unit 7, information related to the current adjustment and operating environment of the damping device 16 for the next processing is Secured.

The second sensor device 21 is also mounted on the spring device 17 in the same way or is directly active connected to the spring device 17. The second sensor device 21 measures the operating conditions such as the actual adjustment of the spring device 17, in particular the adjusted spring characteristics (spring constant), and the value is passed through the steering unit 7 in the form of an electrical capture signal. Transmission to the central steering unit 6 is possible.

In this way, the central steering device 6 obtains information on the adjustment of the damping device 16 and the spring device 17 through the two sensor devices 20 and 21, and as a result, the central steering device 6 receives this information. Through the sensors it is possible to accurately determine the state of the plurality of fixing elements (4).

The characteristics of each of the damping device 16 and / or the spring device 17 during operation of the washing machine W and in particular during the dewatering operation of the vibration amplification of the drum housing 2 via the two sensor devices 20 and 21. It is possible to ascertain whether the deformation has been achieved through the respective actuators 18 and 19 and also what adjustments have been made to the respective fixing elements 4.

This information allows the central steering device 6 to predict the resonant frequencies that the system capable of vibrating at least at least approximately in advance will accommodate. At this time as well, the load amount inside the drum 3 and the drum housing 2 should be measured. The amount of water can be measured through the flow rate measurement, the total weight is measured through each sensor device 21 mounted on the spring device 17 of the fixing element (4). At this time, the drum 3, the laundry, and the drum housing including the washing solution can be measured and the loading amount of the washing apparatus W can be estimated based on this.

In addition, there is a method for analyzing the sensor signals of the two sensor devices 20 and 21 as well as the sensor device 8 so that the weight of the drum 3 can be measured. When using this method, it is possible to predict the mass vibrable because it exists inside the drum housing 2 without measuring the amount of water flowing in to form the washing liquid.

Another feature of the present invention is that the characteristics of the damping device 16 are deformed by hysteresis, which prevents vibration problems and in particular when the mass vibrating due to dehydration occurring in the washing machine W during the dehydration process is reduced. This large amplitude and consequently the deformation of the resonant frequency of the vibrable system can be prevented.

In the case of FIG. 3 two sensor devices 20 and 21 are mounted inside the housing of the fixing element 4. Alternatively, the two sensor devices 20 and 21 may be mounted outside the housing as long as the measurement of the deformation (active connection) of each of the damping device 16 or the spring device 17 is assumed. The two sensor devices 20 and 21 may be used to designate the vibration state of the drum housing 2 and the drum 3 after analyzing the respective sensor signals.

3 shows the actuators 18 and 19 mounted inside the housing of the fastening element 4. Each actuator 18 and 19 may alternatively be separately mounted, ie mounted in different housings. In addition, there is a method of mounting one actuator that integrates the functions of both actuators 18 and 19.

The invention with respect to the suspension has been described by way of example of a suspension for the drum housing (2) and the drum (3) of the washing machine (W). However, the suspension is also applicable to other systems capable of vibrating in the same way, that is, other systems in which vibrations are expected to be partially modified during operation of the equipment.

The steering process step of the washing machine by the suspension 5 described above is introduced in FIG. 4.

When the operation is started, first, the movement of the drum housing 2 with respect to the main housing 1 is captured by the sensor device 8 under the control of the central steering device 6, and the captured signal formed thereon is generated by the steering device 6. (Step S1). Thereafter, step S2 is followed in which the captured signal is compared with a predetermined reference value. At this time, the individual comparison by the steering apparatus 6 is possible, and a method of obtaining and comparing a standard value from a previously stored standard area.

The next step is to transmit a steering signal for steering of the suspension when the captured signal exceeds the standard value (step S3).

Suspension control is carried out via a steering signal emitted from the steering device 6, where at least one value or parameter of the damping and spring characteristics of the suspension is deformed. As a result, one or both of the damping and spring characteristics, which are two parameters, are modified according to the analysis result of the acquisition signal and the acquisition signal (step S4).

In detail, in the capturing step (step S1), the resonance frequency region of the vibrable system can be captured in particular, and in the steering step (step S4), at least one of the damping characteristic and the spring characteristic, which is a parameter, is deformed to vibrate the vibration frequency of the system. Deformation may occur. At this time, in relation to step S2, that is, the achievement or range of the resonance frequency can be specified by comparing the acquired signal with a predetermined standard value. In addition, the control signal depending on the at least one reference region stored in advance through the emission step (step S3) can be emitted in a predetermined manner for the deformation of the resonant frequency of the vibrable system. As a result, data for controlling the suspension 5 can be obtained from a reference region defined in the home appliance, for example, arithmetic and / or experimentally determined, through which the damping device 16 and the spring device 17 can be obtained. Each actuator 18 and 19 can be used to modify the resonant frequency of the vibrable system to suit the purpose.

As a result, the implementation of the process according to the manner described above on the basis of FIG. 4 realizes the advantages of the invention described in connection with the suspension 5 of the washing machine W. FIG.

In summary, the manipulation of the fixing element 4 according to the change of the position of the drum 3 of the washing machine W captured can generate reaction force and especially damping force to minimize the change of position or general movement of the drum 3. It is done. Reaction forces for damping the vibrations of the drum 3 are exerted at a number of points on the drum 3 by means of a number of fastening elements 4. The drum 3 in the drum housing 2 is also elastically fixed to the main housing 1 of the washing machine W by the fixing element 4.

The present invention has been described in terms of each of the corresponding drawings, in which the drawings are schematic only, and the invention is not limited to particular numbers or proportions. It is a matter of course that the matters described by symbols and examples given in the form of the present invention based on the above-described drawings and the elements and elements used in the drawings, the patent technology, and the claims should not be construed limitedly. All embodiments and modifications encompassed by the claims appended hereto are believed to be based on the present invention.

Figure 1 shows the overall configuration of a laundry machine equipped with a suspension in an embodiment based on the present invention.

Figure 2 shows in detail the fixing element of the suspension provided by the laundry equipment shown in Figure 1 as a first embodiment.

Figure 3 shows a fixing element of the suspension provided in the laundry equipment shown in Figure 1 as a second embodiment.

Figure 4 shows the steps for the steering of the washing machine based on the present invention in the form of a flowchart.

Claims (15)

The drum housing 2 elastically mounted on the main housing 1 of the washing machine by the suspension 5 and the movement of the drum housing are captured and the capture signal is transmitted to the steering devices 6 and 11 so that the steering device A suspension of a washing machine (W) having a sensor device (8) for analyzing a captured signal and transmitting a steering signal, A fixing element 4 having a damping device 16 and a spring device 17 connected to the damping device and arranged in the common housing 12 is provided for at least a flexible arrangement of the drum housing 2. With one, And one actuator 18 connected with the damping device 16 and another actuator 19 connected with the spring device 17, The actuators 18, 19 are connected to the sensor device 8, At least one of the actuators 18, 19 modulates the damping characteristic of the damping device 16 or the spring characteristic of the spring device 17 according to the steering signal transmitted by the steering device 6, 11. Suspension, characterized in that. The method according to claim 1, The fixing element 4 is elastically connectable to the main housing 1 of the washing machine W by one connecting element 14, and the fixing element 4 by the other connecting element 15. Suspension, characterized in that the elastically connectable to the drum housing (2). The method according to claim 1, Suspension, characterized in that it comprises one actuator (18) for modifying the damping force of the damping device (16), and another actuator (19) for modifying the spring constant of the spring device (17). The method according to claim 1, The damping device (16) is in active connection with the spring device (17), characterized in that the damping characteristics by the actuator (18, 19) and the deformation of each of the spring characteristics occurs independently. The method according to claim 1, One sensor device 20 mounted on the damping device 16 for measuring the operating condition of the damping device, and another sensor device mounted on the spring device 17 for measuring the operating condition of the spring device ( 21) suspension. The method according to claim 5, Suspension, characterized in that the sensor device (20, 21) transmits an acquisition signal and transmits the signal to the steering device (6) of the washing machine (W) for processing the signal. As a washing machine, It is provided with a drum housing (2) elastically mounted to the main housing (1), A sensor device 8 for capturing movement of the drum housing and for transmitting a capture signal; A steering device 6 for transmitting a steering signal based on the captured signal analysis, A fixing element 4, a damping device 16, and an actuator 18, a spring device 17, which is in active connection with the device, for the resilient arrangement of the drum housing 2, and which is in active connection with the device. With another actuator 19, At least one of the actuators 18, 19 deforms the damping characteristic of the damping device 16 and the spring characteristic of the spring device 17 according to the steering signal transmitted by the steering device 6. Washing machine. The method according to claim 7, The damping device 16 and the spring device 17 are mounted in one common housing 12 and the suspension is resilient with the main housing 1 of the washing machine W via one connecting element 14. Is connected to, the laundry machine, characterized in that elastically connected with the drum housing (2) by the other connecting element (15). The method according to claim 7, The damping device 16, the spring device 17, and the actuators 18, 19 are all mounted in one common housing 12, and the damping device 16 and the spring device 17 are actively connected. There is a washing apparatus. The method according to claim 7, The drum housing 2 and the fixing element 4 constitute a vibrating system, and the steering device 6 vibrates the actuators 18 and 19 mounted for the damping and the spring characteristics, respectively. Washing apparatus, characterized in that for controlling the resonant frequency of the steering independently of each other. The method according to claim 7, The fixing element 4 is provided with one sensor device 20 mounted on the damping device 16 for measuring the operating condition of the damping device and another mounted on the spring device 17 for measuring the operating condition of the spring device. Washing apparatus characterized in that it comprises one sensor device (21). The method according to claim 7, Washing apparatus, characterized in that the sensor device (8) is a sensor device capable of three-dimensional measurement. Steering process of a washing machine having a drum housing 2 elastically arranged by a suspension 5 in the main housing 1 of the washing machine W, and a sensor device 8 for capturing the movement of the drum housing. as, Capturing the movement of the drum housing and transmitting a capture signal according thereto (S1); Comparing the captured signal with a predetermined reference value (S2); If the acquisition signal exceeds a standard value, transmitting a steering signal for suspension (S3); And (S4) steering the suspension via the steering signal to modify at least one of the damping characteristic of the suspension and the value of the spring characteristic in a predetermined manner. The method according to claim 13, The drum housing 2 and the suspension 5 constitute a vibrating system, and the capturing step includes the resonant frequency region capture of the vibrating system. In the step S4, the resonant frequency of the vibrable system is included. And modifying at least one of a damping characteristic and a spring characteristic for deformation. The method according to claim 14, The transmitting step (S3), characterized in that it comprises transmitting a steering signal in order to modify the resonant frequency of the vibrable system in a predetermined manner according to at least one reference region of the previously stored reference region, Steering process.

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