KR20210133401A - Miniature washing machine - Google Patents

Abstract

The present invention relates to a miniature washing machine. The miniature washing machine includes: a lower housing forming a lower part; a rear housing coupled with the lower housing and forming a rear side; a tub fixed to the rear housing, and storing water; a drum installed in the tub to be rotatable; a pulsator provided in a lower part of the drum to be rotated independently with respect to the drum; a dummy motor provided between the tub and the lower housing and rotated together with the pulsator; a water supply part provided in the lower housing and circulating and supplying the water in the tub to an upper part of the tub; and a case coupled with the lower housing and the rear housing and formed into a transparent enclosed body to cover the tub, the drum, the dummy motor and the water supply part. Therefore, the present invention is capable of enabling a user to visually check the operation of an actual washing machine and the flow of washing water.

Description

Miniature washing machine

The present invention relates to a miniature washing machine, and more particularly, to a miniature washing machine that can be used for display by visually confirming a supply process of washing water when a drum rotates.

In general, the methods for publicizing various products that are being mass-produced for sale to consumers include indirect promotion through media such as newspapers, magazines, or broadcast advertisements, or by displaying the real thing at an agency or other exhibition hall to give consumers It can be roughly divided into direct publicity methods that allow direct observation of the real thing.

On the other hand, among the above-listed publicity methods, the former method of indirectly promoting a product through a medium such as a newspaper, magazine, or broadcast advertisement has the advantage of being able to promote it to several people at once, but actually purchasing the product. It is common for a person with a doctor to decide whether to purchase a product by looking at the real thing displayed at a dealership or exhibition hall.

However, the actual product is very helpful in deciding whether to purchase the product by directly identifying the structure and design of the product depending on the type of product. Since consumers can indirectly judge the quality of the washing machine while directly checking the A washing machine for exhibition that allows for this is currently on display.

Such a conventional exhibition washing machine is designed to be able to check the operation state at an exhibition hall or a sales agency using a general sales washing machine.

However, the washing machine for display has a problem in that the exhibition cost is high because the washing machine for sale is actually displayed in numerous exhibition halls or sales agencies.

In addition, there was a problem in that the actual product had to be secured as much as the size of the actual product, and since water supply was required to operate the actual product, it had to be displayed only in a location close to the water supply source.

In addition, exhibition washing machines typically have a housing made of an opaque material, and have a problem in that it is impossible for an observer to visually confirm the operation of the washing machine and the movement of washing water.

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a miniature washing machine capable of realizing the operation of an actual product in a size smaller than that of the actual product for display and promotion.

In addition, the present invention has been devised to solve the above problems, and a miniature machine in which an observer can visually confirm the actual operation of the washing machine and the movement of washing water through the operation of the inside of the miniature washing machine and the movement of water when the washing machine is operated. The purpose is to provide a washing machine.

On the other hand, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

A miniature washing machine according to an embodiment of the present invention for achieving the above object includes a lower housing forming a lower portion, a housing fastened to the lower housing and forming a rear, and a storage unit fixed to the rear housing and storing water A drum, a drum rotatably installed inside the tub, a pulsator independently rotating with respect to the drum under the drum, a dummy motor provided between the tub and the lower housing and rotating like the pulsator; , a water supply unit provided in the rear housing and circulating and supplying water in the tub to an upper portion of the tub, and a housing coupled to the lower housing and the rear housing to cover the tub, the drum, the dummy motor, and the water supply unit It is preferable to provide a case formed of a transparent material of the shape.

Here, it is preferable that the drum has a first outer shaft extending to the lower housing through the lower portion of the tub, and the pulsator has an inner shaft extending to the lower housing through the center of the first outer shaft do.

Preferably, the lower housing includes a first driving motor for rotating the first outer shaft and a second driving motor for rotating the inner shaft.

On the other hand, it is preferable that a second outer shaft rotatably provided with respect to the first outer shaft is provided on the first outer shaft between the lower housing and the tub, and the dummy motor is provided on the second outer shaft.

Here, it is preferable that the second outer shaft extends into the lower housing and is rotated by the second driving motor.

On the other hand, it is preferable that the tub is provided with a water flow forming cover for guiding the water moving to the upper portion of the tub to the inside of the drum.

In addition, a recovery pipe connected to the lower portion of the tub and recovering water in the tub, a circulation pump provided in the rear housing to pump the water recovered to the recovery pipe, and water pumped by the circulation pump to the water supply unit It is preferable to further provide a water supply pipe to guide.

Meanwhile, a drain pipe for draining water from the tub is further connected to a lower portion of the tub, and the drain pipe is preferably closed by a drain cap.

In addition, it is preferable that a proximity sensor is provided on the front surface of the lower housing, and the drum and the dummy motor are rotated according to the detection of the proximity sensor.

On the other hand, it is preferable that a pressure sensor is provided on the lower surface of the lower housing, and the pressure sensor detects an installation state of the miniature washing machine.

The miniature washing machine according to the present invention has the effect of providing a miniature washing machine capable of implementing the operation of an actual product in a size smaller than that of the actual product for display and promotion.

In addition, the miniature washing machine according to the present invention has the effect of providing a miniature washing machine in which an observer can visually confirm the actual operation of the washing machine and the movement of washing water through the operation and movement of water inside the miniature washing machine when the miniature washing machine is operated. .

On the other hand, the effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view showing a miniature washing machine according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line A-A' of FIG. 1 .
3 is a cross-sectional view taken along line BB of FIG. 2 .
4 is a perspective view illustrating a lower portion of a miniature washing machine according to an embodiment of the present invention.
5 is a perspective view illustrating a rear surface of a miniature washing machine according to an embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail. In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function interferes with the understanding of the embodiment of the present invention, the detailed description thereof will be omitted.

In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the components from other components, and the essence, order, or order of the components are not limited by the terms.

In addition, when it is described that a component is “connected”, “coupled” or “connected” to another component, the component may be directly connected or connected to the other component, but there is another component between each component. It should be understood that components may be “connected,” “coupled,” or “connected.”

Hereinafter, a miniature washing machine according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a miniature washing machine according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line A-A' of FIG. 1, FIG. 3 is a cross-sectional view taken along line BB of FIG. 2, and FIG. 4 is A perspective view showing a lower portion of a miniature washing machine according to an embodiment of the present invention, and FIG. 5 is a perspective view showing a rear side of the miniature washing machine according to an embodiment of the present invention.

1 to 3, the miniature washing machine 100 according to the embodiment of the present invention includes a lower housing 110 forming a lower portion and a rear housing 120 fastened to the rear of the lower housing 110, The tub 140 fastened to the front of the rear housing 120, the drum 150 rotatably provided inside the tub 140, and the drum 150 rotatably provided separately from the drum 150 at the lower part of the drum 150 The pulsator 160, the drum 150 and the dummy motor 170 having a motor shape for driving the pulsator 160, are fastened to the lower housing 110 and the rear housing 120, and the tub 140 is A case 130 made of a transparent material is provided by reducing the external appearance of the washing machine so as to cover the outside.

Here, the lower housing 110 is provided with a plurality of motors 113 and 114 for individually rotating the drum 150, the pulsator 160, and the dummy motor 170, and the rear housing 120 has a tub ( A circulation pump 124 for circulating the water stored in 140 and a control unit 122 for controlling each component may be provided.

Here, the lower housing 110 and the rear housing 120 are not related to the actual shape of the washing machine, and may be formed in various shapes. In addition, if necessary, the lower housing 110 and the rear housing 120 itself may be integrally formed. In the following description, a case in which the lower housing 110 and the rear housing 120 are formed as separate components will be described as an example.

The lower housing 110 may have an installation space formed therein, and may be formed in a housing shape with an open lower portion. A front panel 111 is provided on the front surface of the lower housing 110 .

Here, the front panel 111 may be provided with a display unit 111a that displays the operating state of the miniature washing machine 100 . The display unit 111a may include a plurality of icons (not shown) imitating the shape of the water flow generated according to the operation of the drum 150 and the operation of the circulation pump 124 according to the operation of the miniature washing machine 100 . .

Meanwhile, a separate LED (not shown) for displaying each icon may be provided on the rear surface of each icon. Power may be supplied to each LED in response to the operation of the rotation and circulation pump 124 to the drum 150 under the control of the controller 122 .

In addition, a proximity sensor 111b may be provided on one side of the front panel 111 . The proximity sensor 111b may be provided as an infrared sensor, and may generate an approach signal to the controller 122 as an observer approaches the front of the miniature washing machine 100 .

Meanwhile, the lower surface of the lower housing 110 may be covered by the lower cover 112 . The lower cover 112 may cover each component installed in the lower housing 110 and support the lower housing 110 so that the lower housing 110 can be seated on the installation surface.

In addition, the lower cover 112 may be provided with a pressure sensor 112a protruding to the lower portion of the lower housing 110 . The pressure sensor 112a may determine whether the miniature washing machine 100 is properly seated on the installation surface. That is, when the miniature washing machine 100 is seated or detached from the installation surface, the pressure sensor 112a may sense it and generate a signal to the controller 122 .

On the other hand, inside the lower housing 110, a first driving motor 113 for rotating the drum 150, and a second driving motor 114 for rotating the pulsator 160 and the dummy motor 170 together. is provided

Here, a drum rotating pulley 113a for transmitting power to the first outer shaft 153 of the drum 150 to be described later is provided on one side of the rotating shaft of the first driving motor 113, and the drum rotating pulley 113a is Power may be transmitted by being connected by the drum pulley 153c of the first outer shaft 153 and the drum driving belt 113b.

In addition, a pulsator rotation pulley 114a for transmitting power to the inner shaft 161 of the pulsator 160 to be described later is provided on one side of the rotation shaft of the second drive motor 114, and the second drive motor 114 A dummy motor rotating pulley 115a for transmitting power to the second outer shaft 171 of the dummy motor 170 to be described later is provided on the other side of the rotating shaft.

Here, the pulsator rotary pulley 114a is connected by the pulsator pulley 161a and the pulsator drive belt 114b provided on the inner shaft 161 of the pulsator 160 to transmit power, and the dummy motor rotary pulley The 115a is connected by the dummy motor pulley 171b provided on the second outer shaft 171 of the dummy motor 170 and the dummy motor driving belt 115b to transmit power.

In addition, a first outer shaft bracket 116 for rotatably supporting the first outer shaft 153 of the drum 150 is provided on the upper portion of the lower housing 110 , the first outer shaft bracket 116 and the first outer shaft A bearing 117 may be provided between the 153 .

The rear housing 120 is formed in a housing shape with an open rear surface, a circulation pump 124 for circulating the water stored in the tub 140 therein, and a PCB-type controller 122 for controlling each component. may be provided.

Here, a rear cover 121 may be provided on the rear surface of the rear housing 120 . The rear cover 121 may be provided to cover the control unit 122 and the circulation pump 124 installed inside the rear housing. In addition, a power switch 121a for controlling the power of the miniature washing machine 100 and the controller 122 may be provided on the rear cover 121 .

On the other hand, the circulation pump 124 installed inside the rear housing 120 is connected to the lower portion of the tub 140 to recover water from the tub 140 and a recovery pipe 124b to recover water from the tub 140 and to the upper portion of the tub 140 . A water supply pipe 124a for supplying used water may be provided.

Here, in the front upper portion of the rear housing 120 , a water supply part 123 protruding from the upper portion of the tub 140 in order to supply water supplied by the circulation pump 124 to the upper portion of the tub 140 may be formed. have. The water supply pipe 124a of the circulation pump 124 may be formed to extend inside the water supply unit 123 .

In addition, a lamp 123a for irradiating illumination to the upper portion of the tub 140 may be further provided at one lower side of the water supply unit 123 . The lamp 123a provided in the water supply unit 123 irradiates light to the upper portion of the tub 140 so that an observer can easily check the inside of the tub 140 and the water flow flowing inside the tub 140 .

In addition, a drain pipe 125 for draining water inside the tub 140 separately from the recovery pipe 124b may be provided at one lower side of the tub 140 . The drain pipe 125 may be connected to the lower portion of the tub 140 and extend through the rear housing 120 and the rear cover 121 . The drain pipe 125 is provided with a drain cap 125a blocking the drain pipe 125 , and the user can drain the water from the tub 140 by removing the drain cap 125a.

The tub 140 may be formed as a cylindrical housing in which water is stored. The tub 140 may be formed of a synthetic resin of a transparent material so that an observer can check the water flow flowing inside the tub 140 .

Meanwhile, a fixing part 141 fixed to the front surface of the rear housing 120 may protrude from the rear of the tub 140 . A recovery pipe 124b is connected to one lower side of the tub 140 , and a drain pipe 125 is connected to the other lower side of the tub 140 .

In addition, in the upper opening of the tub 140 , a path of water that is moved when the water rotated along the inner circumferential surface of the tub 140 according to the rotation of the drum 150 is moved to the upper part of the tub 140 by centrifugal force is formed in the tub 140 . A water flow forming cover 142 for guiding the upper inside of the is provided.

Here, the water flow forming cover 142 is formed in a ring shape that covers the upper portion of the tub 140 , and on the lower surface of the water flow forming cover 142 , the cross-section thereof is from the inner circumferential surface of the tub 140 to the inside of the center of the tub 140 . It may be formed in a refracted arc shape.

Accordingly, when the water rotating on the inner circumferential surface of the tub 140 according to the rotation of the drum 150 is moved to the upper portion of the tub 140 by centrifugal force, the water moved to the upper portion is in the lower arc shape of the water flow forming cover 142 . may be guided to the inside of the tub 140 . Here, the water guided by the water flow forming cover 142 may be guided to the inside of the drum 150 provided inside the tub 140 .

On the other hand, an outer shaft hole 144 into which the first outer shaft 153 of the drum 150 is rotatably inserted is formed in the lower central portion of the tub 140 , and the outer shaft hole 144 and the first outer shaft of the drum 150 . A sealer 144a for forming a watertight between the outer shaft hole 144 and the first outer shaft 153 may be further provided between the 153 .

In addition, a bearing 144b for rotatably supporting the first outer shaft 153 with respect to the outer shaft hole 144 may be further provided between the outer shaft hole 144 and the first outer shaft 153 of the drum 150 . .

The drum 150 is rotatably provided inside the tub 140 and is for applying centrifugal force to the water stored in the tub 140 according to the rotation. The drum 150 is formed in a cylindrical shape with an open top, and a plurality of through holes 151 for communicating the water inside the tub 140 with the inside of the drum 150 are formed on the circumferential surface, and the water in the inner circumferential surface is formed. A plurality of water flow protrusions 152 for effectively applying centrifugal force may be formed to protrude.

On the other hand, a first outer shaft 153 penetrating the first outer shaft hole 144 of the tub 140 is extended and formed in the lower portion of the drum 150 , and the end of the first outer shaft 153 is the lower housing 110 . extends inward of

In addition, an inner shaft hole 153a into which the inner shaft 161 of the pulsator 160 to be described later is rotatably inserted is formed in the center of the first outer shaft 153 . The inner shaft hole 153a may further include a sealer 153b for forming watertightness with the inner shaft 161 of the pulsator 160 . In addition, a bearing 153d for rotatably supporting the inner shaft 161 of the pulsator 160 may be further provided in the inner shaft hole 153a.

Here, the end of the first outer shaft 153 is provided with a drum pulley 153c, and the drum pulley 153c is connected to the drum rotating pulley 113a of the first driving motor 113 by the drum driving belt 113b. to be rotated by receiving power from the first driving motor 113 .

The pulsator 160 is positioned under the drum 150 and has an inner shaft 161 inserted into the inner shaft hole 153a formed in the first outer shaft 153 of the drum 150 . The inner shaft 161 is formed to be longer than the first outer shaft 153 and is formed so as to extend from the end of the first outer shaft 153 to the outside of the first outer shaft 153 .

Here, the end of the inner shaft 161 is provided with a pulsator pulley 161a, the pulsator pulley 161a is a pulsator rotating pulley 114a and a pulsator driving belt 114b of the second driving motor 114. connected by the second driving motor 114 to be rotated by receiving power from the second driving motor 114 .

The dummy motor 170 is rotatably provided on the outer surface of the first outer shaft 153 of the drum 150 in a space between the tub 140 and the lower housing 110 . The dummy motor 170 includes a second outer shaft 171 rotatably provided on an outer peripheral surface of the first outer shaft 153 .

Meanwhile, a bearing 171a for rotatably supporting the second outer shaft 171 with respect to the first outer shaft 153 may be provided between the first outer shaft 153 and the second outer shaft 171 . In addition, the second outer shaft 171 extends inside the lower housing 110 between the tub 140 and the lower housing 110 , and a dummy motor pulley 171b is provided under the second outer shaft 171 . can

Here, the dummy motor pulley 171b is connected by the dummy motor rotating pulley 115a of the second driving motor 114 and the dummy motor driving belt 115b to receive power from the second driving motor 114 to rotate. can be

On the other hand, the dummy motor pulley 171b and the pulsator pulley 161a are respectively connected to the dummy motor rotating pulley 115a and the pulsator rotating pulley 114a are provided at both ends of the rotation shaft of the second driving motor 114, respectively.

Accordingly, the dummy motor pulley 171b and the pulsator pulley 161a may be rotated in the same direction while receiving power in the same rotational direction as that of the second driving motor 114 .

That is, the dummy motor 170 and the pulsator 160 provided with the dummy motor pulley 171b and the pulsator pulley 161a may be provided to always rotate in the same direction when the second driving motor 114 is driven. .

The case 130 is formed in a housing shape having a lower portion and a rear open, and may be fastened to the upper surface of the lower housing 110 and the front surface of the rear housing 120 . The case 130 has a shape covering the tub 140 , the dummy motor 170 , and the water supply unit 123 located on the front of the rear housing 120 , located on the upper portion of the lower housing 110 , the lower housing ( 110 ) and the rear housing 120 .

In addition, the case 130 may be manufactured by injection molding using a synthetic resin of a transparent material so that an observer can visually check the water flow generated in the tub 140 . In addition, the shape of a door, a control panel, etc. of a general top-loading washing machine may be formed in a panel line on the upper surface of the case 130 .

The control unit 122 receives the signals generated from the proximity sensor 111b and the pressure sensor 112a according to the supply of power by the power switch 121a, the circulation pump 124, the first driving motor 113, the first The miniature washing machine 100 may be driven by operating the second driving motor 114 .

Accordingly, the operation of the miniature washing machine according to an embodiment of the present invention will be described in detail through examples. Each element mentioned below should be understood with reference to the above description and drawings.

First, in the operation of the miniature washing machine 100 as described above, the user first supplies a certain amount of water to the tub 140 and supplies power to the control unit 122 from a power supply unit (not shown).

Accordingly, the control unit 122 receives signals generated from the proximity sensor 111b and the pressure sensor 112a to check the operating environment of the miniature washing machine 100 .

That is, the control unit 122 can check whether the miniature washing machine 100 maintains the correct installation state according to the signal generated from the pressure sensor 112a, and the miniature washing machine 100 is installed on the installation surface during operation of the miniature washing machine 100. In case of deviation from , the operation of each component may be stopped.

Also, the controller 122 may selectively operate the miniature washing machine 100 according to a signal generated from the proximity sensor 111b. For example, when a user or an observer approaches the front of the miniature washing machine 100 , the proximity sensor 111b detects this and transmits a detection signal to the controller 122 .

Accordingly, the control unit 122 operates the circulation pump 124 , the first driving motor 113 , and the second driving motor 114 according to the signal generated from the proximity sensor 111b to allow the observer to use the miniature washing machine 100 . It makes it possible to observe the change in the water flow in the tub 140 .

Alternatively, the control unit 122 continuously operates the circulation pump 124, the first driving motor 113, and the second driving motor 114 as power is applied from the power switch to operate the miniature washing machine regardless of the observer's approach. It may be possible to make (100) work all the time.

On the other hand, the control unit 122 is the circulation pump 124, the first driving motor 113, the second driving motor 114 according to the application of power by the power switch 121a and/or the operation signal of the proximity sensor 111. may be operated to change the water flow inside the tub 140 .

First, the controller 122 may indicate a process in which water is supplied to the tub 140 by operating the circulation pump 124 . That is, as the control unit 122 operates the circulation pump 124 , the return pipe 124b connected to the lower portion of the tub 140 is turned over so that the water inside the tub 140 is supplied to the water supply pipe 124a by the circulation pump 124 . The water supplied to the water supply pipe 124a may be supplied by circulating water toward the center of the tub 140 (or drum 150) through the water supply unit 123 positioned above the tub 140 .

Accordingly, the observer can observe a process in which water is supplied from the top of the tub 140 (or drum 150) from the outside of the case 130 .

Meanwhile, the control unit 122 operates the first drive motor 113 and/or the second drive motor 114 simultaneously or selectively in the same direction or in the opposite direction to form a rotational water flow in the water stored inside the tub 140 . so that the observer can visually confirm it.

For example, the control unit 122 maintains the first driving motor 113 in a stopped state, and operates only the second driving motor 114 to rotate the pulsator 160 and the dummy motor 170 . can In this case, the water stored inside the tub forms a water flow inside the drum by the rotation of the pulsator. Accordingly, the observer can visually confirm the water flow formed by the rotation of the pulsator 160 inside the tub 140 . In addition, the dummy motor 170 is rotated by the first driving motor 113 and the observer can visually confirm the rotation of the dummy motor 170 which rotates the pulsator 160 .

In addition, the control unit 122 operates the first driving motor 113 and the second driving motor 114 in the same direction so that the pulsator 160, the dummy motor 170, and the drum 150 are rotated in the same direction. can do.

In this case, the water stored inside the tub 140 may form a water flow by centrifugal force according to the rotation of the pulsator 160 and the drum 150 . Accordingly, the observer can visually confirm the water flow formed by the drum 150 and the pulsator 160 inside the tub 140 .

Here, when the pulsator 160 and the drum 150 rotated by the first driving motor 113 and the second driving motor 114 exceed a predetermined rotation speed, the water inside the tub 140 is transferred to the drum 150 . ) and the centrifugal force of the pulsator 160 rotates while ascending along the inner wall of the tub 140 .

On the other hand, the water rising along the inner wall of the tub 140 is refracted into the center of the drum 150 by the water flow forming cover 142 provided on the upper portion of the tub 140 from the upper portion of the tub 140 to fall. will form a current. Accordingly, the observer can visually confirm the water flow falling from the upper part of the tub 140 to the inside of the drum 150 .

According to the miniature washing machine 100 according to the present invention as described above, it is possible to provide a miniature washing machine 100 capable of implementing the operation of an actual product in a size smaller than that of the actual product for display and promotion.

In addition, according to the miniature washing machine 100 according to the present invention, when the miniature washing machine 100 is operated, the observer can visually confirm the actual operation of the washing machine and the movement of washing water through the operation of the inside of the miniature washing machine and the movement of water.

In the above, even though all the components constituting the embodiment of the present invention are described as being combined or operated in combination as one, the present invention is not necessarily limited to this embodiment. That is, within the scope of the object of the present invention, all the components may operate by selectively combining one or more. In addition, terms such as "comprises", "comprises" or "have" described above mean that the corresponding component may be inherent, unless otherwise stated, excluding other components. Rather, it should be construed as being able to further include other components.

The above description is merely illustrative of the technical idea of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains.

Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

100: miniature washing machine 110: lower housing
111: front panel 112: lower cover
113: first driving motor 114: second driving motor
116: first outer bracket 120: rear housing
121: rear cover 122: control unit
123: water supply 124: circulation pump
125: drain pipe 130: case
140: tub 141: fixed part
142: water flow forming cover 144: first outer shaft hole
150: drum 151: through hole
152: water flow projection 153: first outer shaft
160: pulsator 161: inner shaft
170: dummy motor 171: second outer shaft

Claims (10)

a lower housing forming a lower portion;
a rear housing fastened to the lower housing and forming a rear;
a tub fixed to the rear housing and storing water;
a drum rotatably installed inside the tub;
And a pulsator independently rotating with respect to the drum in the lower part of the drum,
a dummy motor provided between the tub and the lower housing and rotating like the pulsator;
a water supply unit provided in the rear housing and circulating and supplying water in the tub to an upper portion of the tub;
and a case fastened to the lower housing and the rear housing and formed of a transparent material in the shape of an enclosure to cover the tub, the drum, the dummy motor, and the water supply part. The method of claim 1,
The drum has a first outer shaft extending to the lower housing through the lower portion of the tub,
The pulsator is a miniature washing machine, characterized in that it has an inner shaft extending through the center of the first outer shaft to the lower housing. The method of claim 2, wherein the lower housing is
a first driving motor for rotating the first outer shaft;
and a second driving motor for rotating the inner shaft. 4. The method of claim 3, wherein the first outer shaft between the lower housing and the tub is provided with a second outer shaft rotatably provided with respect to the first outer shaft, and the dummy motor is provided on the second outer shaft. Miniature washing machine. The miniature washing machine according to claim 4, wherein the second outer shaft extends into the lower housing and is rotated by the second driving motor. The method of claim 1, wherein the tub
A miniature washing machine, characterized in that it has an upper portion of the water flow forming cover for guiding the water moving to the upper portion of the tub to the inside of the drum. The method of claim 1,
a recovery pipe connected to the lower part of the tub and recovering water in the tub;
a circulation pump provided in the rear housing to pump the water recovered to the recovery pipe;
The miniature washing machine further comprising a water supply pipe for guiding the water pumped by the circulation pump to the water supply unit. The miniature washing machine according to claim 1, wherein a drain pipe for draining water from the tub is further connected to a lower portion of the tub, and the drain pipe is closed by a drain cap. The miniature washing machine according to claim 1, wherein a proximity sensor is provided on the front surface of the lower housing, and the drum and the dummy motor are rotated according to the detection of the proximity sensor. The miniature washing machine according to claim 1, wherein a pressure sensor is provided on a lower surface of the lower housing, and the pressure sensor detects an installation state of the miniature washing machine.

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