KR0172889B1 - Apparatus for driving low frequency vibration type washing machine - Google Patents

Abstract

The present invention relates to a drive device for a low frequency vibration washing machine, and to reduce noise while significantly reducing manufacturing costs by vibrating a vibrator with minimal input energy without performing expensive linear motors and performing efficient washing and dewatering operations. .

To this end, the present invention is a housing fixed to the lower portion of the washing tank, the upper end is supported on the housing and the lower end is supported by the support and is rotated to rotate the selective rotation in the forward and reverse direction by the power, and is formed on the top of the rotating shaft to be located in the housing A rotating shaft plate rotating together with the rotating shaft, a rotating force transmitting means for selectively transmitting the forward and reverse rotational forces of the rotating shaft to the housing, a plurality of electromagnets attached to the upper rotating plate of the rotating shaft to generate a magnetic force by applying a voltage; A central axis plate elastically installed in the housing so that the central axis penetrates into the washing tank, and attached to the bottom surface of the central axis plate to selectively attach or fall to each electromagnet during rotation of the rotating shaft plate to impart upper and lower movement force to the central axis plate. A plurality of iron plates to make and the said central axis Is formed in only a central axis of the plate, when moving to the lower portion, is composed of a hayeoseo phase, the vibrator moves downward together.

Description

Drive of low frequency vibration washer

1 is a longitudinal sectional view schematically showing a driving device of a conventional low frequency vibration washing machine.

Figure 2 is a longitudinal sectional view showing a driving device of the present invention low frequency vibration washing machine.

Figure 3 is a partially enlarged view showing the main portion of the drive device of the low-frequency vibration washing machine of the present invention in another embodiment.

* Explanation of symbols for main parts of the drawings

1: washing tank 2: housing

4: shaft 5: support

6: rotating shaft plate 8: bearing support plate

9: upper one-way bearing 10: lower one-way bearing

12; Electromagnet 13: central axis

14 central axis plate 16 iron plate

17: vibrator

The present invention relates to a drive device for a low frequency vibration washing machine, and more particularly, to configure the vibration plate to vibrate without using a linear motor, thereby reducing manufacturing costs and reducing noise.

In general, a washing machine has a pulsator installed in the washing tank, and the flow of the heart and the rotating water flow into the washing liquid as the washing and rotating power of the motor is transmitted to the pulsator through the reduction mechanism of the clutch. The laundry administration takes place as it is formed.

The washing machine is a method of washing by water flow or strength and flow phenomenon, by combining the shear force of the fluid and the mechanical action of the washing and friction of the laundry and the chemical action of the detergent to remove the contaminants in the laundry This is done.

However, such a general washing machine has a phenomenon in which the laundry in the washing tank is twisted or entangled due to the stirring action of the pulsator's forward and reverse rotations, resulting in severe foam damage. In addition, even after washing the detergent residues in the laundry will cause harm to the user's skin health, there was a problem that the washing time is long while the consumption of the washing water is large.

Recently, as shown in FIG. 1, in order to solve the problem of the general washing machine, a resonance phenomenon occurs in a multiphase medium composed of water, detergent, and air layer in a washing tank, and thus cavitation of micro air bubbles in the multiphase medium occurs. Low frequency vibration washer that can perform washing and washing function by mechanical energy by Phenomena or Nonlinear Oscillation and chemical action by detergent has appeared.

1 is a longitudinal cross-sectional view showing a conventional low frequency vibration washing machine, in which a drive shaft 23 penetrates into a washing tank 21 under a washing tank 21 containing a multiphase medium composed of water, detergent, and air layer. ) Is installed, and a low frequency oscillator 24 is installed on the drive shaft 23 in the washing tank 21 so as to cause resonance in the multiphase medium accommodated in the washing tank 21, and the linear motor 22 is displaced. The signal oscillator 25 for transmitting the amplitude signal and the frequency signal and the signal amplifier 26 for amplifying and varying the signal are connected.

Therefore, when the linear motor 22 is driven according to the signal of the signal oscillator 25 and the signal amplifier 26 connected to the linear motor 22, the low frequency oscillator installed on the drive shaft 23 in the washing tank 21. (24) oscillates and causes resonance in the multiphase medium composed of water, detergent and air layer in the washing tank 21, and mechanical energy and chemicals of detergent due to cavitation or nonlinear vibration of micro air bubbles generated at this time. Phosphorus action is combined to perform washing and washing administration.

At this time, the signal oscillator 25 and the signal amplifier 26 have the oscillation frequency band of the low frequency oscillator 24 in the range of 2 to 5 mm in amplitude and 2 to 10 degrees in each rotation direction at 20 to 50 Hz. Thereby amplifying the current or voltage applied to the vibrator 24.

However, such a conventional low frequency vibration washing machine has to use expensive linear motors, so the manufacturing cost is increased, and since the linear motors are directly subjected to loads during driving, noises due to vibrations are severely generated.

The present invention has been made to solve the above-mentioned problems, the vibration is reduced to a minimum input energy without the use of expensive linear motor to perform efficient washing and dehydration administration to reduce the production cost while significantly reducing the noise The purpose is to make it happen.

According to an embodiment of the present invention for achieving the above object, a housing fixed to the lower portion of the washing tank, the upper end is supported by the housing and the lower end is supported by the support and the shaft is rotated to selectively rotate in the forward and reverse direction, and within the housing A rotating shaft plate formed at an upper end of the rotating shaft to rotate together with the rotating shaft, a rotating force transmitting means for selectively transmitting the forward and reverse rotational forces of the rotating shaft to the housing, and attached to the upper rotating plate of the rotating shaft to receive a magnetic force. A plurality of electromagnets to be generated, a central shaft plate elastically installed in the housing so that the central shaft penetrates into the washing tank, and a central shaft plate installed on the bottom surface of the central shaft plate to selectively stick or drop to each electromagnet during rotation of the rotating shaft plate. Revenge to grant movement Is formed of a steel plate and a top plate onto the central axis of the central shaft, when moving to the bottom, with the phase, composed of hayeoseo oscillator to move to the lower drive unit of the present invention, low-frequency vibration of washing machine is provided.

Hereinafter, the present invention will be described in more detail with reference to FIGS. 2 to 3.

2 is a longitudinal sectional view showing a driving device of the low frequency vibration washing machine of the present invention, and FIG. 3 is a partially enlarged view showing the main portion of the driving device of the low frequency vibration washing machine of the present invention in another embodiment. The housing 2 is fixed to the lower part, and the pulley 3 is formed in the housing so as to receive power. The upper end of the rotating shaft 4 is rotatably supported, and the lower end of the rotating shaft is rotatably supported as the support 5. And a rotary shaft plate 6 positioned at the upper end of the rotary shaft 4 to be rotated together with the rotary shaft 4, and fixed to the rotary transformer 7a at the lower end of the rotary shaft 4. The transformer 7b is provided with a transformer 7 so as to receive an alternating voltage. The lower end of the bearing support plate 8 is fixed to the support 5.

In addition, an upper one-way bearing 9 is installed between the rotating shaft plate 6 formed on the rotating shaft 4 and the housing 2 fixed to the washing tank 1 so as to freely rotate only when the rotating shaft 4 is rotated in the forward direction. A lower one-way bearing 10 is installed between the housing 2 and the bearing support plate 8 so as to be free to rotate only in the reverse rotation of the rotating shaft 4, and a diode 11 is provided on the upper rotating shaft plate 6 of the rotating shaft 4. A plurality of electromagnets 12 are attached at equal intervals so as to generate a magnetic force by receiving a voltage converted into a direct current voltage, and the center shaft 13 penetrates into the washing tank 1 in the housing 2. The shaft plate 14 is elastically installed with a plurality of tension springs 15, and the bottom surface of the central shaft plate 14 selectively attaches to each electromagnet 12 when the rotating shaft plate 6 is rotated, and the central shaft plate 14. 14, up and down A plurality of iron plates 16 are attached at equal intervals to impart a negative movement force, and when the central axis plate 14 moves upward and downward together with the upper end of the central axis 13, the vibration force is moved upward and downward together. The vibrator 17 is formed to exert.

Each electromagnet 12 attached to the rotary shaft plate 6 and each iron plate 160 attached to the central shaft plate 14 are horizontal in each embodiment, but need not be limited thereto, and other embodiments as necessary. Each may be vertical as shown.

Reference numeral 18 is a belt that transmits the driving force of the motor to the pulley formed on the rotating shaft.

Referring to the operation and effects of the present invention configured as described above are as follows.

When the user puts the detergent together with the laundry into the washing tank 1 and selects the washing start button, the washing water is supplied into the washing tank, and when the water supply of the washing water is completed, the washing stroke, the rinsing stroke, and the dehydrating stroke are sequentially performed.

In detail, the washing signal is given so that the driving force of the motor (not shown) is supported by the belt 18, and the upper end is supported by the housing 2, and the lower end is supported by a separate support 5 (rotating shaft ( Since the rotating shaft plate 6 rotates forward clockwise in the drawing along with the rotating shaft 4 because it is transmitted to the pulley 3 of 4), the upper one-way bearing installed between the rotating shaft plate 6 and the housing 2 9) freely rotates, as a result, the rotary shaft plate 6 is subjected to rolling motion of the upper one-way bearing 9 while making a forward rotation.

On the other hand, at the washing stroke, an alternating voltage is applied to the transformer 7 which is installed at the lower end of the rotating shaft 4 and consists of the rotating transformer 7a and the fixed transformer 7b. Each electromagnet generates magnetic force because it is applied to the next electromagnet 12 attached at equal intervals to the next rotating shaft plate 6.

In this way, each of the electromagnets 12 attached to the rotary shaft plate while the rotary shaft 4 and the rotary shaft plate 6 is rotated in the forward direction is a plurality of iron plate 16 attached to the bottom of the central shaft plate 14 at equal intervals ) Or not facing each other is repeatedly performed. At the moment when the work electromagnet 12 and each iron plate 16 face each other, the iron plate 16 is formed by the magnetic force of the electromagnet 12. 12, the central shaft plate 14 moves downward while receiving the elasticity of each tension spring 15, and at the moment when each electromagnet 12 and each iron plate 16 do not face each other, the electromagnet 12 Since the iron plate 16 does not stick to the electromagnet 12 even by the magnetic force of), the central shaft plate 14 moves upward again while receiving the restoring force of each tension spring 15.

When the rotating shaft 4 and the rotating shaft plate 6 is rotated in the forward direction, each electromagnet 12 attached to the rotating shaft plate and each iron plate 16 attached to the central shaft plate 14 do not face or face each other. To this end, the electromagnet and the iron plate may be horizontal as in one embodiment, or may be vertical as in another embodiment.

As described above, the central shaft plate 14 continuously moves upward and downward while the rotary shaft 4 and the rotary shaft plate 6 rotate in the forward direction, so that the central shaft plate is the central shaft 13. Considering that it is formed at the bottom of the) the vibrator 17 formed on the upper end of the central axis vibrates in the washing tank (1) and accordingly in the multi-phase medium consisting of a combination of water and detergent and air layer in the washing tank (1) Due to the resonance phenomenon, laundry is washed due to the combination of cavitation of micro air bubbles, mechanical energy caused by nonlinear vibration, and chemical action of detergent.

When the washing process is completed by the above-described action, the rinsing process is continuously performed, and when the rinsing process is completed, the dehydration process is performed. The rinsing process is similar to the washing process described above. I will explain only.

When the dehydration signal is given, the dehydration is completed and the reverse driving force of the motor is transmitted to the pulley 3 formed on the rotating shaft 4 through the belt 18, so that the rotating shaft plate 6 together with the rotating shaft 4 is in the drawings. Reverse rotation in a clockwise direction, in which the upper one-way bearing 9 installed between the rotating shaft plate and the housing 2 is not free to rotate and the lower one-way bearing 10 installed between the housing 2 and the bearing support plate 8. ) Rotates freely, and as a result, the housing 2 receives the rolling motion of the lower one-way bearing 10 and rotates counterclockwise in the drawing and accordingly, the rotary shaft 4, the rotary shaft plate 6, and the central shaft 13 ), The central shaft plate 14, the vibrator 17, the washing tank 1 rotates together with the housing 2, so that the laundry in the washing tank 1 is pushed outward by centrifugal force, so that the moisture contained in the laundry is released. Dehydration complete The.

Therefore, the present invention has the effect of reducing the manufacturing cost as well as significantly reducing the noise due to vibration by performing an efficient washing and dewatering operation by vibrating the vibrator with a minimum input energy without using an expensive linear motor.

Claims (5)

A housing fixed to the lower part of the washing tank, an upper end supported by the housing, and a lower end supported by the support, which is selectively rotated in a forward and reverse direction by power, and formed on an upper end of the rotating shaft so as to be located in the housing and rotating together with the rotating shaft. A rotating shaft plate, rotational force transmission means for selectively transmitting the forward and reverse rotational forces of the rotary shaft to the housing, a plurality of electromagnets attached to the upper rotary plate of the rotary shaft to generate a magnetic force by applying a voltage, and a central shaft into the washing tank. A central shaft plate elastically installed in the housing so as to penetrate, and a plurality of iron plates installed on the bottom surface of the central shaft plate to selectively attach or drop to each electromagnet during rotation of the rotating shaft plate to impart upper and lower movement force to the central shaft plate; Is formed on top of the central axis, the center When the shaft plate moves up and down, the drive device of the low frequency vibration washing machine, characterized in that it is configured as a vibrator moving up and down together. According to claim 1, The rotational force transmission means is installed between the rotating shaft plate formed on the rotating shaft and the housing, the upper one-way bearing freely rotated only in the forward rotation of the rotating shaft, a bearing support plate fixed to the lower end of the support, the housing and bearing The drive device of the low frequency vibration washing machine is installed between the support plate is composed of a lower one-way bearing freely rotated only in the reverse rotation of the rotary shaft. The center shaft plate of claim 1, wherein the center shaft plate is elastically installed in the housing by fixing one end of the plurality of tension springs to the housing and fixing the other end of the plurality of tension springs to the center shaft plate so as to be located in the housing. Drive of low frequency vibration washing machine. The driving apparatus of claim 1, wherein each electromagnet is horizontally attached to the rotating shaft plate and each iron plate is horizontally attached to the central axis plate. The driving apparatus of claim 1, wherein each electromagnet is vertically attached to the rotating shaft plate and each iron plate is vertically attached to the central axis plate.