KR102220392B1 - Detergent automatic input device for washing machine - Google Patents

Abstract

The present invention discloses an automatic detergent supply device for a washing machine, and the present invention allows a detergent and a softener to be selectively and quantitatively supplied using a single motor, thereby improving usability for washing machine products.

Description

Detergent automatic input device for washing machine}

The present invention relates to an automatic detergent supply device applied to a washing machine.

In general, a washing machine is a device that cleans laundry through processes such as washing, rinsing, dehydration, drying, etc. to remove contamination from clothes and bedding (hereinafter referred to as laundry) contained in a drum using the action of water and detergent. As a result, to wash laundry, detergent is supplied together with washing water to wash laundry.

On the other hand, the detergent used for washing laundry is supplied through a detergent supply device, and the detergent supply device is a situation in which a natural drop method using the inherent properties of a liquid is mainly used.

However, as described above, the free-fall method of detergent takes a long time to fall naturally when the hose becomes narrow due to the property that the detergent hardens when the detergent remains in the air, and the speed of the detergent flow varies depending on the viscosity of the detergent. It was difficult to supply detergent.

Accordingly, conventionally, an automatic injection device for detergent and softener has been disclosed, but in this case, since the detergent and softener are driven by different driving units, there is a problem in that the material cost is increased and the installation space of the driving unit is increased, so that the automatic injection device cannot be miniaturized.

Unexamined Patent Publication No. 10-2006-0085978 (published on July 31, 2006) Unexamined Patent Publication No. 10-2014-0071560 (published on 2014.06.12.) Publication Patent Publication No. 10-2015-0053066 (published on May 15, 2015) Unexamined Patent Publication No. 10-2018-0020783 (published on February 28, 2018)

It is an object to be solved by the present invention to provide an automatic detergent supply device for a washing machine that allows a detergent and a softener to be selectively quantitatively supplied using a single motor.

The automatic detergent supply device of a washing machine, which is a means of solving the problem of the present invention, is that the upper opening is covered by a cover, and a first inlet through which the detergent is introduced, a second inlet through which the softener is introduced, and An outer case having a first discharge port and a second discharge port for discharging the softener; While being mounted to be in close contact with the bottom surface of the outer case, first and second chambers are formed respectively for receiving detergents and softeners respectively introduced through the first and second inlets, and at one side of the first and second chambers An inner case in which first and second pressure adjustment chambers are formed, respectively; A first actuator seated in the first pressure adjustment chamber and applying a discharge pressure in a reciprocating linear motion so that the detergent accommodated in the first chamber is discharged to the washing tub through the first discharge port; A second actuator seated in the second pressure control chamber and applying a discharge pressure in a reciprocating linear motion so that the softener accommodated in the second chamber is discharged to the washing tub through the second discharge port; A driving motor having a first driving shaft in a first direction and a second driving shaft in a second direction opposite to the first direction, and driving forward and reverse rotation for discharging detergent or softener; It is connected to the first drive shaft, and when detergent is injected, forward rotation driving force of the driving motor is transmitted to the first actuator to move reciprocally and linearly. When a softener is injected, the reverse rotation driving force of the driving motor is applied to the first actuator. A first clutch member blocking transmission; And, it is connected to the second drive shaft, and when detergent is injected, the forward rotation driving force of the driving motor is blocked from being transmitted to the second actuator, and when a softener is injected, the reverse rotation driving force of the driving motor is transferred to the second actuator. A second clutch member that transmits and reciprocates and linearly moves; It includes.

In addition, in the inner case, a fixed frame on which the driving motor is mounted between the first and second chambers is formed, and each of the first and second chambers is introduced through the first inlet or the second inlet. A discharge guide wall is formed to guide the detergent or softener to be uniformly discharged through the first discharge port or the second discharge port by preventing fluctuation caused by the flow of the detergent or softener.

In addition, the first pressure control chamber is provided with a first pressure outlet for applying a discharge pressure to the first chamber when the first actuator moves in a reciprocating linear direction, and the second pressure adjustment chamber includes a reciprocating linear movement of the second actuator. A second pressure outlet for applying a discharge pressure to the second chamber is formed.

In addition, one end of the first actuator is introduced into the first pressure control chamber, a T-shaped first rod is formed at the other end of the first actuator, and a reciprocating straight line of the first actuator is formed on the first rod. To form a first guide hole for guiding the movement.

In addition, one end of the second actuator is introduced into the second pressure control chamber, and a T-shaped second rod is formed on the other end of the second actuator, and the second actuator reciprocates on the second rod. To form a second guide hole for guiding the linear movement.

In addition, the first clutch member may include a first connecting portion having a first shaft hole to which the first driving shaft is coupled, and having a first contact portion formed on one surface thereof; And a second connection part connected to or separated from the first connection part and having a second contact part formed at least one or more divided into at least one rotatably connected to the hinge. Including, wherein the first contact portion is engaged with the second contact portion so as to transmit the rotational force to the second connecting portion when the driving motor is driven to rotate forward to connect the first and second connecting portions, and the driving motor During reverse rotation, the second contact portion and the engaging contact are released so that the rotational force is not transmitted to the second connecting portion, thereby separating the first and second connecting portions.

In addition, a first guide pin is formed on one side of the other surface of the second connection part to guide the reciprocating linear movement of the first actuator by flowing along the first guide hole.

In addition, a first separation bump is formed on the most proximal side of the first connection part to prevent separation of the second contact part rotating around the hinge.

In addition, the first contact portion may include a first disk portion protruding from one surface of the first connection portion; And a second disk portion protruding from one surface of the first disk portion and having first teeth capable of being latched in only one direction. It includes.

In addition, the second contact portion, while in contact with the outer circumferential surface of the first disk portion, a first curved rod for guiding the rotation of the first disk portion; And, while being in contact with the plane of the first disk portion, the second disk portion is engaged with the first teeth when rotating in a forward rotation to rotate the second connection portion, and when the second disk portion rotates in reverse, the locking with the first teeth is released. A second curved rod forming a stacked structure with the first curved rod so as to stop the rotation of the second connecting portion; It includes.

In addition, the second clutch member may include a third connection portion having a second shaft hole to which the second drive shaft is coupled, and having a third contact portion formed on one surface thereof; And a fourth connection part connected to or separated from the third connection part and forming a fourth contact part divided into at least one or more rotatably connected to the hinge. Including, wherein the third contact portion is engaged with the fourth contact portion so as to transmit the rotational force to the fourth connection portion when the driving motor is driven in reverse rotation to connect the third and fourth connecting portions, and the driving motor During forward rotation, the fourth contact portion and the engaging contact are released so that the rotational force is not transmitted to the fourth connector, thereby separating the third and fourth connecting portions.

In addition, a second guide pin is formed on the other side of the other surface of the fourth connection part to guide the reciprocating linear movement of the second actuator by flowing along the second guide hole.

In addition, a second separation prevention protrusion preventing separation of the fourth contact unit rotating around the hinge is formed on the most proximal side of the third connection unit.

In addition, the third contact portion may include a third disk portion protruding from one surface of the third connection portion; And a fourth disk portion protruding from one surface of the third disk portion and having second teeth that can be engaged only in one direction. It includes.

In addition, the second contact portion, while in contact with the outer circumferential surface of the third disk portion, a third curved rod for guiding the rotation of the third disk portion; And, while contacting the plane of the third disk portion, the fourth disk portion is caught by the second teeth when rotating in reverse to rotate the fourth connection portion, and when the fourth disk portion is rotated forward, the locking with the second teeth is released. A fourth curved rod forming a stacked structure with the second curved rod so as to stop the rotation of the fourth connecting portion; It includes.

As described above, the present invention configures an automatic detergent supply device for selectively quantitatively supplying detergent and softener using a single motor, and through this, an effect of improving usability for washing machine products can be expected.

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

1 is a perspective view showing the structure of an automatic detergent supply device according to an embodiment of the present invention.
2 is an exploded view showing the structure of an automatic detergent supply device according to an embodiment of the present invention.
3 is a bottom view showing the structure of an automatic detergent supply device according to an embodiment of the present invention.
4 is a cross-sectional view taken along line AA′ of FIG. 3 according to an embodiment of the present invention.
Figure 5 is an exploded view of a driving unit and a clutch member according to an embodiment of the present invention.
6 is a schematic front view of a driving unit according to an embodiment of the present invention.
7 is a cross-sectional view taken along line B-B' of FIG. 6 showing a power transmission state of a first clutch member when a motor for detergent injection is driven to rotate in a forward rotation according to an embodiment of the present invention.
FIG. 8 is a cross-sectional view taken along line C-C' of FIG. 6 showing a power cut-off state of a second clutch member when the motor for detergent injection is driven in a forward rotation according to an embodiment of the present invention.
FIG. 9 is a cross-sectional view taken along line B-B' of FIG. 6 showing a power cutoff state of a first clutch member when a motor for injection of a softener is driven in reverse rotation according to an embodiment of the present invention.
FIG. 10 is a cross-sectional view taken along line C-C' of FIG. 6 showing a power transmission state of a second clutch member when a motor for injection of a softener is driven in reverse rotation according to an embodiment of the present invention.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, in the embodiments of the technical idea of the present invention, it is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only this embodiment makes the disclosure of the present invention complete, and the technology to which the present invention pertains. It is provided to completely inform the scope of the invention to those of ordinary skill in the field, and is only defined by the scope of the claims in the embodiments of the inventive concept.

The terms used in the present specification are for describing exemplary embodiments and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase.

In the present specification, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance the possibility of being added.

In addition, embodiments described in the present specification will be described with reference to cross-sectional views and/or plan views, which are ideal exemplary views of the present invention. Accordingly, embodiments of the present invention are not limited to the specific form shown, but also include changes in necessary form. For example, the area shown at right angles may be rounded or may have a shape having a predetermined curvature. Accordingly, the regions illustrated in the drawings have schematic properties, and the shapes of the regions illustrated in the drawings are for illustrating a specific shape of the region of the device and are not intended to limit the scope of the invention.

The same reference numerals refer to the same elements throughout the specification. Accordingly, the same reference numerals or similar reference numerals may be described with reference to other drawings, even if they are not mentioned or described in the corresponding drawings. Further, even if a reference numeral is not indicated, it may be described with reference to other drawings.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a perspective view showing the structure of an automatic detergent supply device according to an embodiment of the present invention, FIG. 2 is an exploded view showing the structure of an automatic detergent supply device according to an embodiment of the present invention, and FIG. It is a bottom view showing the structure of the automatic supply device, FIG. 4 is a cross-sectional view taken along line A-A' of FIG. 3 as an embodiment of the present invention, and FIG. 5 is an exploded view of a driving part and a clutch member according to an embodiment of the present invention. I did it.

1 to 5, the automatic detergent supply device for a washing machine according to an embodiment of the present invention is installed inside the upper side of the washing machine, and includes an outer case 10, an inner case 20, and a first operation. It includes a body 30, a second actuator 30', a drive motor 40, a first clutch member 50, and a second clutch member 50.

In the outer case 10, the upper opening is covered by the lid 11 while the inner case 20 is mounted, and a first inlet T1 into which a detergent is injected and a softener (eg, rinse) is injected. 2 The inlet T1', the first outlet T2 for discharging the detergent to the washing tank, and the second outlet T2' for discharging the softener to the washing tank may be formed in parallel.

Here, the first and second inlets (T1, T1') are not shown in the drawing, but are connected to the upper side of the washing tank through a hose, and detergent and softener are respectively introduced from the upper side of the washing tub through opening and closing a cover, etc. When the detergent and the softener flow along the hose, the detergent and the softener may flow into the inner case 20 through the first inlet T1 and the second inlet T1'.

On the other hand, although not shown in the drawing, the first and second inlets (T1, T1'), and the first and second outlets (T2, T2') may be respectively provided with check valves, and accordingly, when pressure is generated, the Opening of the check valve is determined, and a flow path to the first inlet (T1) and the first outlet (T2) or the second inlet (T1') and the second outlet (T2) according to the selective opening of the check valve Detergent or softener can be selectively discharged through the flow path to').

The inner case 20 is mounted so as to be in close contact with the bottom surface of the outer case 10, and is a first for accommodating a detergent and a softener flowing through the first and second inlets T1 and T1', respectively. And second chambers S1 and S1 ′ are formed, and at one side of the first chamber S1 and the second chamber S1 ′, a first pressure control chamber P1 and a second pressure control chamber ( P1') was formed.

At this time, the inner case 20 is provided with a fixed frame 21 on which the driving motor 40 is mounted, as well as the first and second chambers S1 and S1', respectively. Discharge through the first outlet (T2) or the second outlet (T2') is uniformly prevented from fluctuating due to the flow of detergent or softener flowing through the inlet (T1) or the second inlet (T1'). The discharge guide walls D1 and D1 ′ are formed to guide the formation.

That is, when the detergent or the softener is introduced through the first inlet T1 or the second inlet T1', the discharge guide walls D1 and D1' Discharge of detergent or softener through the first and second outlets (T2, T2') while preventing the phenomenon that the discharge of detergent or softener is cut off through the first outlet (T2) and the second outlet (T2') It is intended to guide this seamlessly and evenly.

In addition, a first pressure outlet 22 for applying a discharge pressure to the first chamber S1 is formed in the first pressure adjustment chamber P1 when the first actuator 30 moves reciprocally and linearly, and the second In the pressure control chamber P1', a second pressure outlet 22' for applying a discharge pressure to the second chamber S1' is formed when the second actuator 30' is reciprocated and linearly moved.

In other words, the first actuator 30 or the second actuator 30' is reciprocated and linearly moved in the first pressure adjusting chamber P1 or the second pressure adjusting chamber P1' to generate the discharge pressure. At this time, the first and second pressure outlets 22 and 22 ′ discharge the discharge pressure to the first chamber S1 or the second chamber S1 ′, respectively, and accordingly 2 Detergents and softeners accommodated in the chambers (S1, S1') are guided by the discharge guide walls (D1, D2') through the first discharge port (T2) and the second discharge port (T2'), respectively, to be uniform in the washing tub. It can be discharged.

Here, the first and second pressure control chambers P1 and P1' may be cylinder structures.

The first and second actuators 30 and 30' are each seated in the first and second pressure control chambers P1 and P1', and the detergent or the agent accommodated in the first chamber S1 2 Forward/reverse rotation of the driving motor 40 to apply a discharge pressure for discharging the softener contained in the chamber S1' to the washing tub through the first discharge port T2 or the second discharge port T2'. It is a piston actuator that reciprocates and linearly moves according to the drive.

At this time, one end of the first actuator 30 is introduced into the first pressure adjustment chamber P1, and a T-shaped first rod 31 is formed at the other end of the first actuator 30, A first guide hole 32 for guiding the reciprocating linear movement of the first actuator 30 may be formed in the first rod 31.

In addition, one end of the second actuator 30 is introduced into the second pressure adjustment chamber P1', and a T-shaped second rod 31' is at the other end of the second actuator 30'. The second rod 31 ′ may be provided with a second guide hole 32 ′ for guiding the reciprocating linear movement of the second actuator 30 ′.

The driving motor 40 is mounted and fixed to the fixing frame 21, and a first driving shaft 41 and a second driving shaft 42 are formed at both ends, respectively, and the first operation is performed for the injection of detergent or softener. It is to drive the forward and reverse rotation to move the sieve 30 and the second actuator 30' reciprocating and linearly.

That is, the driving motor 40 may be driven in forward rotation in the detergent discharging mode, and may be driven in reverse rotation in the softener discharging mode.

Here, the forward rotation drive or the reverse rotation drive of the drive motor 40 may be performed according to a programmed washing stroke.

The first clutch member 50 is coupled to the first driving shaft 41 of the driving motor 40, and in the detergent injection mode, the driving motor 40 applies a forward rotation driving force to the first actuator 30. In the softener injection mode, the forward rotation driving force of the driving motor 40 is not transmitted to the first actuator 30, and the first and second connecting parts 51 and 52 and the first And second contact portions 53 and 54.

The first connection part 51 rotates together when the driving motor 40 is driven to rotate by the first driving shaft 41 coupled to the first shaft hole 51a, and the second connection part 52 is The driving motor 40 is connected to the first connection part 51 when driving in forward rotation, but is separated from the first connection part 51 when the driving motor 40 is driven in reverse rotation.

That is, the first connection part 51 is a structure that rotates together with the driving motor 40, and the second connection part 52 is connected to the first connection part 51 according to the injection mode of detergent or softener. It is configured so that no rotation occurs while rotating or separating.

Accordingly, the first contact portion 53 is formed on the first connecting portion 51, and the second contact portion 52 is divided into at least one or more rotatably coupled to a hinge h ( 54) can be formed.

The first contact part 53 engages with the second contact part 54 so that the first actuator 30 moves reciprocally and linearly when the driving motor 40 is driven in a forward rotation for injection of detergent. The forward rotation driving force of the driving motor 40 is transmitted to the second connection part 52 through the second contact part 54, and when the driving motor 40 is driven in reverse rotation to input the softener, the first While the engaging contact to the second contact part 54 is released so that the reciprocating linear movement of the actuator 30 is stopped, the reverse rotation driving force of the driving motor 40 is blocked from being transmitted to the second connection part 52. It has been configured.

That is, when the driving motor 40 is driven to rotate forward to inject detergent into the washing tank, the driving force of the driving motor 40 to rotate forward is the first connection part 51 → the first contact part through the first driving shaft 41 (53) → second contact portion 54 → second connection portion 52 → while being transferred to the first actuator 30, the first actuator 30 reciprocates and linearly moves to the first chamber ( Discharge pressure can be applied to S1).

Accordingly, the first contact portion 53 is a first disk portion 531 protruding from one surface of the first connecting portion 51 and a first disk portion 531 protruding from one surface of the first disk portion 531. The second disk portion 532 in which the first teeth 532a that can be engaged only in the direction are formed is configured in a top-down stacked structure.

In addition, the second contact portion 54 is in contact with the outer circumferential surface of the first disk portion 531, a first curved rod 541 for guiding the rotation of the first disk portion 531, and the first disk portion While in contact with the plane of 531, the second disk portion 532 is caught by the first tooth 532a when the forward rotation is performed to rotate the second connection portion 52, and the second disk portion 532 is reversed. During rotation, a second curved rod 542 forming a stacked structure with the first curved rod 541 is included so as to stop the rotation of the second connecting portion 52 while the first tooth 532a and the hook are released. It can be.

Here, since the first guide pin 55 is formed on one side of the other surface of the second connection part 52, the first guide pin 55 is the first guide hole formed in the first actuator 30 While seated to be flowable on 32, the first actuator 30 is capable of reciprocating linear movement from the rotation of the first guide pin 55.

On the other hand, at least one first separation prevention protrusion 51b may be formed at a predetermined interval on the most proximal side of the first connection part 51, and the first separation prevention protrusion 51b rotates around the hinge h. It is possible to prevent the separation of the second contact portion 54.

The second clutch member 60 is coupled to the second drive shaft 42 of the drive motor 40, so that the reverse rotation driving force of the drive motor 40 in the softener injection mode is applied to the second actuator 30 ′. ), and in the detergent injection mode, the reverse rotation driving force of the driving motor 40 is not transmitted to the second actuator 30', and the third and fourth connecting parts 61 and 62 It includes third and fourth contact portions 63 and 64.

The third connection part 61 rotates together when the driving motor 40 is driven in reverse rotation by the second driving shaft 42 coupled to the second shaft hole 61a, and the fourth connection part 62 When the driving motor 40 is driven in reverse rotation, it is connected to the third connecting part 61, but when the driving motor 40 is driven in forward rotation, it is separated from the third connecting part 61.

That is, the third connection part 61 is a structure that rotates together with the driving motor 40, and the fourth connection part 62 is connected to the third connection part 61 according to the injection mode of detergent or softener. It is configured so that no rotation occurs while rotating or separating.

Accordingly, the third contact portion 63 is formed on the third connecting portion 61, and the fourth contact portion 62 is divided into at least one or more rotatably coupled to a hinge h ( 64) can be formed.

The third contact part 63 engages with the fourth contact part 64 so that the second actuator 30 ′ moves in a reciprocating and linear direction when the driving motor 40 is driven to rotate in reverse for injection of the softener, The reverse rotation driving force of the driving motor 40 is transmitted to the fourth connection part 62 through the fourth contact part 64, and when the driving motor 40 is driven in forward rotation for detergent injection, the 2 As the engaging contact to the fourth contact part 64 is released so that the reciprocating linear movement of the actuator 30 ′ is stopped, the forward rotation driving force of the driving motor 40 is transmitted to the fourth connection part 62. It is configured to block.

That is, when the driving motor 40 is driven to rotate in reverse to inject the softener into the washing tank, the driving force of the driving motor 40 to rotate in the reverse direction is through the second driving shaft 42, the third connection part 61 → the third contact part (63) → 4th contact part 64 → 4th connection part 62 → As it is transferred to the second actuator 30', the second actuator 30' reciprocates and linearly moves to accommodate the second softener. It is possible to apply a discharge pressure to the chamber (S1').

Accordingly, the third contact portion 63 has a third disk portion 631 protruding from one surface of the third connection portion 61 and a third disk portion 631 protruding from one surface of the third disk portion 631. The fourth disk portion 632 in which the second teeth 632a that can be caught only in the direction are formed is configured in a vertical stacked structure.

In addition, the fourth contact portion 64 contacts the outer circumferential surface of the third disk portion 631 and guides the rotation of the third disk portion 631, and the third curved rod 641, and the third disk portion While in contact with the plane of (631), the fourth disk portion 632 is caught by the second tooth 632a when rotating in reverse to rotate the fourth connection portion 62, and the fourth disk portion 632 During forward rotation, a fourth curved rod 642 forming a stacked structure with the third curved rod 641 is included so as to stop the rotation of the fourth connecting portion 62 while the second teeth 632a and the engagement are released. It can be.

Here, since the second guide pin 65 is formed on one side of the other surface of the fourth connection part 62, the second guide pin 65 is the second guide formed on the second actuator 30 ′. While being seated to be flowable in the hole 32 ′, the second actuator 30 ′ is capable of reciprocating linear movement from the rotation of the second guide pin 65.

On the other hand, at least one second separation prevention protrusion 61b may be formed at a predetermined interval on the most proximal side of the third connection part 61, and the second separation prevention protrusion 61b rotates around the hinge h. It is possible to prevent separation of the fourth contact portion 64.

As described above, in the automatic detergent supply device according to an embodiment of the present invention, as shown in FIGS. 1 to 10, the detergent injection mode and the softener injection mode are sequentially performed according to the washing machine drive program. The first chamber and the second chamber formed in the inner case 20 in the outer case 10 through the first inlet T1 and the second inlet T1' of the outer case 10 through a hose line at Put detergent and softener into (S1'), respectively.

Thereafter, when the washing condition is set after turning on the operation switch in the washing machine, the driving program in the washing machine first activates a first operation mode in which detergent is injected into the washing tank as a washing mode, and a driving motor according to the first operation mode. 40 is driven to rotate forward.

Then, as shown in the accompanying FIGS. 5 to 7, the forward rotation driving force of the drive motor 40 is the first clutch member 50 and the second clutch member through the first and second drive shafts 41 and 42, respectively. While being transmitted to 60, the forward rotation driving force is transmitted to the first actuator 30 through the first clutch member 50, but the second actuator 30 ′ through the second clutch member 60 ), the forward rotation driving force is not transmitted.

That is, the first teeth 532a of the first contact portion 53 included in the first clutch member 50 are at the ends of the first and second curved rods 541 and 542 forming the second contact portion 54. While engaging in contact, the second contact portion 54 is pushed and rotated.

Accordingly, the second connection portion 52 to which the second contact portion 54 is coupled is rotated through the hinge h, and the first guide pin 55 protruding from one side of the other surface of the second connection portion 52 ) Is seated in the first guide hole 32 of the first actuator 30, so the first guide pin 55 rotates according to the rotation of the second connection part 52, and the first actuator ( 30) flows from one end of the first guide hole 32 to the other end and from the other end to one end, and accordingly, one end of the first actuator 30 reciprocates and linearly moves inside the first pressure control chamber P1 A discharge pressure is applied, and this discharge pressure is applied to the first chamber S1 through the first pressure outlet 22.

Then, the detergent accommodated in the first chamber S1 may be discharged to the washing tub through the first discharge port T2 by the discharge pressure as described above.

Meanwhile, as shown in FIGS. 5 and 6 and 8, when detergent is injected into the washing tank through the first discharge port T2, the third contact part 63 included in the second clutch member 60 Since the second tooth 632a rotates without engaging the ends of the third and fourth curved rods 641 and 642 included in the fourth contact portion 64, the fourth tooth 632a rotates through the hinge h. The rotation of the fourth connection portion 62 to which the contact portion 64 is coupled is not performed.

Then, the second guide pin 65 protruding from the other side of the other surface of the fourth connection part 62 and seated in the second guide hole 32 ′ of the second actuator 30 ′ does not rotate, The reciprocating linear movement of the second actuator 30' is stopped, and accordingly, the discharge pressure from the second pressure adjustment chamber P1' to the second chamber S1' in which the softener is accommodated is not generated.

Accordingly, the softener accommodated in the second chamber S1' is not discharged to the washing tub at all in the first operation mode in which the detergent is injected into the washing tub.

On the other hand, as described above, when the laundry for laundry is terminated after the detergent is added and the second operation mode for switching to the softener injection mode is activated, the second operation mode as shown in FIGS. 5 and 6 and 10 Accordingly, the driving motor 40 is driven in reverse rotation.

Then, the reverse rotation driving force of the driving motor 40 is transmitted to the first clutch member 50 and the second clutch member 60 through the first and second driving shafts 41 and 42, respectively, and the second clutch The reverse rotation driving force is transmitted to the second actuator 30 ′ through the member 60, but the reverse rotation driving force is not transmitted to the first actuator 30 through the first clutch member 50. .

That is, the second teeth 632a of the third contact portion 63 included in the second clutch member 60 are at the ends of the third and fourth curved rods 641 and 642 forming the fourth contact portion 64. While engaging in contact, the fourth contact portion 64 is pushed and rotated.

Accordingly, the fourth connection part 62 to which the fourth contact part 64 is coupled is rotated through the hinge h, and the second guide pin 65 protruding from one side of the other surface of the fourth connection part 62 is performed. ) Is seated in the second guide hole 32' of the second actuator 30', so the second guide pin 65 rotates according to the rotation of the fourth connection part 62 and the second operation The sieve 30' flows from one end to the other end and from the other end to one end of the second guide hole 32', and accordingly, one end of the second actuator 30' is a second pressure adjustment chamber P1'. The discharge pressure is applied by reciprocating linear movement inside, and this discharge pressure is applied to the second chamber S1' through the second pressure outlet 22'.

Then, a certain amount of the softener contained in the second chamber S1' can be discharged to the washing tub through the second discharge port T2' by the above discharge pressure.

Meanwhile, as shown in FIGS. 5 and 6 and 9, when the softener is injected into the washing tank through the second discharge port T2', the first contact portion 53 included in the first clutch member 50 Since the first tooth 532a of the second contact portion 54 rotates without engaging the ends of the first and second curved bars 541 and 542 included in the second contact portion 54, the first tooth 532a 2 The rotation of the second connection part 52 to which the contact part 54 is coupled is not performed.

Then, the first guide pin 55 protruding from the other side of the other surface of the second connecting portion 52 and seated in the first guide hole 32 of the first actuator 30 does not rotate, and the first The reciprocating linear movement of the actuator 30 is stopped, and accordingly, the discharge pressure from the first pressure adjustment chamber P1 to the first chamber S1 in which the detergent is accommodated does not occur.

Accordingly, the detergent accommodated in the first chamber S1 is not discharged to the washing tub at all in the second operation mode in which the softener is injected into the washing tub.

In the above, the technical idea of the automatic detergent supplying device for a washing machine according to the present invention has been described with the accompanying drawings, but this is an exemplary description of the preferred embodiment of the present invention, but does not limit the present invention.

Therefore, the present invention is not limited to the specific preferred embodiments described above, and anyone with ordinary knowledge in the technical field to which the present invention pertains without departing from the gist of the present invention claimed in the claims can implement various modifications. Of course, such changes are possible and are within the scope of the claims.

10; Outer case 11; cover
20; Inner case 21; Fixed frame
22, 22'; First and second pressure outlets 30 and 30'; First and second actuators
31, 31'; First and second rods 32, 32'; 1st and 2nd guide holes
40; Drive motors 41, 42; 1st and 2nd drive shaft
50; A first clutch member 51; First connection
51a; First shaft hole 51b; 1st departure bump
52; A second connecting portion 53; First contact
531; A first disk portion 532; 2nd disc part
532a; First tooth 54; Second contact
541; First curved bar 542; 2nd curved bar
55; A first guide pin 60; Second clutch member
61; Third connection part 61a; 2nd shaft hole
61b; A second departure bump 62; Second connection
63; Third contact portion 631; 3rd disc part
632; A fourth disk portion 632a; 2nd tooth
64; Fourth contact portion 641; 3rd curved bar
642; Fourth curved bar 65; 2nd guide pin
D1, D1'; Discharge guide walls T1, T1'; First and second inlets
T2, T2'; First and second discharge ports S1 and S1'; 1st and 2nd chamber
P1, P1'; 1st and 2nd pressure control room

Claims (14)

The upper opening is covered by a cover, and has a first inlet through which detergent is introduced, a second inlet through which softener is introduced, and a first discharge port for discharging detergent into the washing tank and a second discharge port for discharging the softener. Outer case;
While being mounted to be in close contact with the bottom surface of the outer case, first and second chambers are formed respectively for receiving detergents and softeners respectively introduced through the first and second inlets, and at one side of the first and second chambers An inner case in which first and second pressure adjustment chambers are formed, respectively;
A first actuator seated in the first pressure adjustment chamber and applying a discharge pressure in a reciprocating linear motion so that the detergent accommodated in the first chamber is discharged to the washing tub through the first discharge port;
A second actuator seated in the second pressure control chamber and applying a discharge pressure in a reciprocating linear motion so that the softener accommodated in the second chamber is discharged to the washing tub through the second discharge port;
A driving motor having a first driving shaft in a first direction and a second driving shaft in a second direction opposite to the first direction, and driving forward and reverse rotation for discharging detergent or softener;
It is connected to the first drive shaft, and when detergent is injected, forward rotation driving force of the driving motor is transmitted to the first actuator to move reciprocally and linearly. When a softener is injected, the reverse rotation driving force of the driving motor is applied to the first actuator. A first clutch member blocking transmission; And,
It is connected to the second drive shaft, and when detergent is injected, the forward rotation driving force of the driving motor is blocked from being transmitted to the second actuator, and when a softener is injected, the reverse rotation driving force of the driving motor is transmitted to the second actuator. A second clutch member for reciprocating linear movement; Automatic detergent supply device for a washing machine comprising a. The method of claim 1,
In the inner case, a fixed frame on which the driving motor is mounted is formed between the first and second chambers,
Inside the first and second chambers, detergent or softener through the first outlet or the second outlet by preventing fluctuations due to the flow of detergent or softener flowing through the first inlet or the second inlet, respectively. Automatic detergent supply device for a washing machine, characterized in that forming a discharge guide wall that guides the discharge of the product to be uniformly performed. The method of claim 1,
The first pressure control chamber is provided with a first pressure outlet for applying a discharge pressure to the first chamber when the first actuator moves in a reciprocating linear direction,
And a second pressure outlet for applying a discharge pressure to the second chamber when the second actuator moves in a reciprocating linear direction in the second pressure adjustment chamber. The method of claim 3,
One end of the first actuator is introduced into the first pressure control chamber, a T-shaped first rod is formed at the other end of the first actuator, and the first rod is provided with a reciprocating linear movement of the first actuator. Forming a first guide hole for guiding,
One end of the second actuator is introduced into the second pressure control chamber, and a T-shaped second rod is formed at the other end of the second actuator, and the second actuator moves in a reciprocating linear direction to the second rod. Automatic detergent supply device for a washing machine, characterized in that forming a second guide hole for guiding. The method of claim 4,
The first clutch member,
A first connecting portion having a first shaft hole to which the first driving shaft is coupled, and having a first contact portion formed on one surface thereof; And a second connection part connected to or separated from the first connection part and having a second contact part formed at least one or more divided into at least one rotatably connected to the hinge. Including,
The first contact part is engaged with the second contact part so as to transmit the rotational force to the second connection part when the driving motor is driven in forward rotation to connect the first and second connection parts, and when the driving motor is driven in reverse rotation An automatic detergent supply device for a washing machine, characterized in that the first and second connection parts are separated while the engaging contact with the second contact part is released so that the rotational force is not transmitted to the second connection part. The method of claim 5,
An automatic detergent supply device for a washing machine, wherein a first guide pin is formed on one side of the other surface of the second connection part to guide the reciprocating linear movement of the first actuator by flowing along the first guide hole. The method of claim 6,
An automatic detergent supply device for a washing machine, characterized in that a first detachment bump is formed on the furthest side of the first connection part to prevent detachment of the second contact part rotating around a hinge. The method of claim 7,
The first contact portion,
A first disk portion protruding from one surface of the first connecting portion; And a second disk portion protruding from one surface of the first disk portion and having first teeth capable of being latched in only one direction. Automatic detergent supply device for a washing machine comprising a. The method of claim 8,
The second contact portion,
A first curved rod that is in contact with an outer circumferential surface of the first disk and guides the rotation of the first disk; And,
When the second disk portion is in contact with the plane of the first disk portion, the second disk portion is caught by the first teeth when rotating in a forward rotation to rotate the second connection portion, and when the second disk portion is rotated in reverse, the locking with the first teeth is released. A second curved rod forming a laminated structure with the first curved rod to stop rotation of the second connecting portion; Automatic detergent supply device for a washing machine comprising a. The method of claim 4,
The second clutch member,
A third connecting portion having a second shaft hole to which the second driving shaft is coupled, and having a third contact portion formed on one surface thereof; And a fourth connection part connected to or separated from the third connection part and forming a fourth contact part divided into at least one or more rotatably connected to the hinge. Including,
The third contact part is engaged with the fourth contact part so as to transmit the rotational force to the fourth connection part when the driving motor is driven in reverse rotation to connect the third and fourth connection parts, and when the driving motor is driven in forward rotation And the third and fourth connection parts are separated from each other while the engaging contact with the fourth contact part is released so that the rotational force is not transmitted to the fourth connection part. The method of claim 10,
And a second guide pin formed on the other side of the other surface of the fourth connection part to guide the reciprocating linear movement of the second actuator by flowing along the second guide hole. The method of claim 11,
An automatic detergent supplying device for a washing machine, characterized in that a second detachment preventing jaw is formed on the furthest side of the third connection part to prevent detachment of the fourth contact part rotating around a hinge. The method of claim 12,
The third contact portion,
A third disk portion protruding from one surface of the third connecting portion; And a fourth disk portion protruding from one surface of the third disk portion and having second teeth that can be engaged only in one direction. Automatic detergent supply device for a washing machine comprising a. The method of claim 13,
The second contact portion,
A third curved rod that is in contact with the outer circumferential surface of the third disk and guides the rotation of the third disk; And,
While in contact with the plane of the third disk portion, the fourth disk portion is engaged with the second teeth when rotating in reverse to rotate the fourth connection portion, and when the fourth disk portion is rotated forward, the second teeth and the locking are released. A fourth curved rod forming a laminated structure with the second curved rod to stop rotation of the fourth connecting portion; Automatic detergent supply device for a washing machine comprising a.

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