KR20220046837A - Automatic detergent input device of washing machine - Google Patents

Abstract

The present invention relates to an automatic detergent feed device for a washing machine, wherein the automatic detergent feed device is mounted in a washing machine to automatically feed liquid detergent to the inside of a washing tank. In the automatic detergent feed device for a washing machine, a housing (10) includes a case (11) and a cover (12). In the housing (10), a motor box portion (111) in which a motor (20) is disposed and a gear box portion (112) in which a gear transmission means (30) is disposed are integrally formed. A cylinder connection portion (113) is formed on a side of the gear box portion (112). The motor box portion (111) is disposed on the gear box portion (112) and the cylinder connection portion (113). One end of a cylinder (40) is connected to the cylinder connection portion (113). A piston (50) is disposed inside the cylinder (40). A connecting rod (51) of the piston (50) is coupled to a cam member (36) of the gear transmission means (30). A cylinder header (60) is coupled to the other end of the cylinder (40). A suction pipe (65) and a discharge pipe (70) are connected to the cylinder header (60). The discharge pipe (70) is disposed on the suction pipe (65). A first check valve (80) is mounted on the suction pipe (65). A second check valve (90) is mounted on the discharge pipe (70). Therefore, the product can be made compact.

Description

Automatic detergent dispensing device for washing machine {AUTOMATIC DETERGENT INPUT DEVICE OF WASHING MACHINE}

The present invention relates to an automatic detergent dispensing device for a washing machine that is installed in a washing machine and automatically supplies liquid detergent into a washing tank, and more particularly, a case and a cover each molded to form a housing, and a motor is attached to the housing. A cylinder header in which the box part and the gear box part are integrally formed, the cylinder connection part is formed on the side of the gear box part, the motor box part is disposed on the upper part of the gear box part and the cylinder connection part, and the suction pipe and the discharge pipe are provided at the other end of the cylinder It relates to an automatic detergent dispensing device for washing machines to which is coupled.

"Liquid detergent supply pump" is introduced in Republic of Korea Patent No. 10-1320203 (October 14, 2013, registered).

The liquid detergent supply pump may include: a body in which a space of a certain size is formed; Doedoe disposed inside the body portion, an inner space capable of reciprocating with a piston having a packing mounted thereon inserted on one side is formed, and an air conveying pipe through which compressed or expanded air is conveyed by reciprocating movement of the piston is directed upward. an air supply unit formed in an extended form and having a rotational shaft inserted into the rotational shaft insertion groove of the body portion at a position on the same axis as the air transport pipe at the lower portion; a driving motor disposed inside the body to rotate the rotating shaft by driving power applied; A rotating shaft fastening groove fitted to the rotating shaft is formed on one side, and a piston fastening portion rotatably fastened to the other side of the piston is formed at a position spaced apart from the rotating shaft fastening groove by a predetermined distance, and the piston rotates together with the rotating shaft. a link member for reciprocating in the inner space of the air supply unit; and an inner space of a certain size is formed and disposed at an upper position of the piston, the end of the air transfer tube is inserted into the inner space to communicate with the inner space of the air supply unit, and compression or expansion transferred through the air transfer tube It includes a pressure chamber provided with an inlet valve and an outlet valve for introducing or discharging the liquid detergent according to the air.

However, the liquid detergent supply pump is required to be manufactured more compactly and smaller by changing the shape of the body portion so as to reduce the space occupied by the washing machine, and it is required to lower the manufacturing cost of the inlet valve and the outlet valve.

Accordingly, an object of the present invention is to form a housing by combining a molded case and a cover, a motor box part and a gear box part are integrally formed in the housing, and a cylinder connection part is formed on the side of the gear box part, the gear box part and the A motor box part is disposed on the upper part of the cylinder connection part, and a cylinder header equipped with a suction pipe and a discharge pipe is coupled to the other end of the cylinder, so that the product can be manufactured compactly, thereby reducing the volume of the product, and assembling the product is simple. In other words, to provide an automatic detergent dispensing device for washing machines that can lower the production cost of products.

In addition, an object of the present invention is that the check valve mounted on the suction pipe and the discharge pipe is formed in a duck-bill shape with any one of rubber, silicone, or polyurethane having good elasticity, so that it can be produced by injection molding and , It is to provide an automatic detergent dispensing device for washing machines that can perform a pump seal function and an O-ring function by itself, thereby reducing manufacturing costs.

An example of the automatic detergent dispensing device for washing machine according to the present invention for achieving the above object is that the housing is composed of a case and a cover, and the motor box unit in which the motor is disposed and the gear box unit in which the gear transmission means is disposed are integrated. is formed, and a cylinder connection part is formed on the side of the gear box part, a motor box part is disposed on the upper part of the gear box part and the cylinder connection part, one end of the cylinder is connected to the cylinder connection part, a piston is disposed inside the cylinder, a piston of the connecting rod is coupled to the cam member of the gear transmission means, the cylinder header is coupled to the other end of the cylinder, the suction pipe and the discharge pipe are respectively connected to the cylinder header, the discharge pipe is disposed on the upper part of the suction pipe, and the first The check valve is mounted and the second check valve is mounted on the discharge pipe, so that the power of the motor is transmitted to the piston through the gear transmission means, and the piston performs a suction stroke and a discharge stroke in the cylinder. The check valve is opened and the second check valve of the discharge pipe is closed, the second check valve of the discharge pipe is opened during the discharge stroke, and the first check valve of the suction pipe is closed.

The first check valve may be molded from any one material of rubber, silicone, or polyurethane, and a flange portion is formed around one end of the cylindrical portion in which the hollow portion is formed, and the first and second flat inclined portions are opposite to each other at the other end of the cylindrical portion. is formed, and in a state in which the tips of the first and second inclined flat plates are in contact with each other, the first and second inclined plates of the first and second flat plates are characterized in that the opening and closing openings in a straight line are formed at the ends.

The second check valve has the same configuration as that of the first check valve, and is mounted on the discharge pipe in a direction opposite to the arrangement direction of the first check valve mounted on the suction pipe.

In the gear transmission means, the first gear part of the electric gear is linked to the driving gear mounted on the drive shaft of the motor, the output gear is linked to the second gear part of the electric gear, and a cam member is disposed on one side of the output gear, A ring end portion formed on the connecting rod of the piston is coupled to the cam member.

A magnet is mounted on the output gear, and a Hall IC is disposed under the output gear, so that the Hall IC senses the magnet for each rotation of the output gear.

Thereby, the automatic detergent dispensing device for washing machine according to the present invention can manufacture a product compactly, reduce the volume of the product, and simplify the assembly of the product, thereby reducing the production cost of the product.

1 is a perspective view showing an automatic detergent dispensing device for a washing machine according to the present invention.
2 is an exploded perspective view showing an automatic detergent dispensing device for a washing machine according to the present invention.
3 is a perspective view showing a state in which the gear transmission means, the piston, and the check valve are mounted inside the case.
4 and 5 are cross-sectional views for explaining the operation of the automatic detergent dispensing device for a washing machine according to the present invention.
6 and 7 are perspective views showing the first check valve.
8 is a perspective view illustrating a gear transmission means.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

1 to 5 , in the automatic detergent dispensing device for washing machine according to the present invention, the housing 10 is composed of a case 11 and a cover 12 , and a motor 20 is disposed in the housing 10 . The motor box part 111 and the gear box part 112 in which the gear transmission means 30 is disposed are integrally formed, and the cylinder connection part 113 is formed on the side of the gear box part 112, the gear box part The motor box part 111 is disposed on the upper part of the 112 and the cylinder connection part 113 , and one end of the cylinder 40 is connected to the cylinder connection part 113 , and the piston 50 is inside the cylinder 40 . is disposed, the connecting rod 51 of the piston 50 is coupled to the cam member 36 of the gear transmission means 30 , the cylinder header 60 is coupled to the other end of the cylinder 40 , and the cylinder header 60 ), the suction pipe 65 and the discharge pipe 70 are respectively connected, the discharge pipe 70 is disposed on the upper part of the suction pipe 65, the first check valve 80 is mounted on the suction pipe 65, and the discharge As the second check valve 90 is mounted on the tube 70 , the power of the motor 20 is transmitted to the piston 50 through the gear transmission means 30 , and the piston 50 is sucked from the cylinder 40 . A stroke and a discharge stroke are performed, and as shown in FIG. 4 , the first check valve 80 of the suction pipe 65 is opened and the second check valve 90 of the discharge pipe 70 is closed during the suction stroke, as shown in FIG. 5, the second check valve 90 of the discharge pipe 70 is opened during the discharge stroke, and the first check valve 80 of the suction pipe 65 is closed.

Accordingly, in the automatic detergent dispensing device for washing machine according to the present invention, after the case 11 and the cover 12 are respectively molded, the case 11 and the cover 12 are combined to form the housing 10, The motor box part 111 and the gear box part 112 are integrally formed in the housing 10, and the cylinder connection part 113 is formed on the side of the gear box part 112, the gear box part 112 and the cylinder The motor box part 111 is disposed on the upper part of the connection part 113, and the cylinder header 60 provided with the suction pipe 65 and the discharge pipe 70 is coupled to the other end of the cylinder 40, thereby making the product compact. Because it can be manufactured, the volume of the product can be reduced, and the assembly of the product is simple, which has the advantage of lowering the production cost of the product.

6 and 7, the first check valve 80 may be molded of any one material of rubber, silicone, or polyurethane, and around one end of the cylindrical portion 82 in which the hollow portion 81 is formed. A flange portion 83 is formed, and at the other end of the cylindrical portion 82 , first and second flat plate inclined portions 84 and 85 are formed to face each other, and the first and second flat plate inclined portions 84 and 85 are formed to face each other. In a state in which the false tips are in contact with each other, the openings 86 in a straight line are formed at the tips of the first and second flat plate inclined portions 84 and 85.

The first check valve 80 configured as described above, when the fluid flows into the hollow portion 81 as shown in the direction of the arrow 871 in FIG. As the pressure is applied, the opening 86 is opened, and as shown in FIG. 7, the first and second flat inclined portions 84 and 85 in the direction of the arrow 872 are contracted when the pressure is applied from the outside, The opening 86 is closed.

The second check valve 90 has the same configuration as the first check valve. However, the second check valve 90 is mounted on the discharge pipe 70 in the opposite direction to the disposition direction of the first check valve 80 mounted on the suction pipe 65 .

The first and second check valves 80 and 90 as described above can be produced by injection molding, and the check valve itself can perform a pump seal function and an O-ring function, thereby reducing manufacturing costs. There are advantages to doing.

Referring to FIG. 8 , in the gear transmission means 30 , the first gear part 33 of the electric gear 32 is interlocked with the driving gear 31 mounted on the driving shaft 20 of the motor 20 , The output gear 35 is interlocked with the second gear part 34 of the gear 32 , a cam member 36 is disposed on one side of the output gear 35 , and a piston 50 is disposed on the cam member 36 . The ring end portion 52 formed on the connecting rod 51 of the is coupled.

Thereby, as shown in FIG. 4 , the power of the motor 20 is transmitted from the drive gear 31 to the output gear 35 through the electric gear 32 , and the cam member 36 of the output gear 35 is ) is disposed in the rear opposite to the cylinder 40, the piston 50 to which the ring end portion 52 of the connecting rod 51 is coupled to the cam member 36 is disposed at the rear end of the cylinder 40 . And, as shown in FIG. 5 , the power of the motor 20 is transmitted from the driving gear 31 to the output gear 35 through the electric gear 32 , and the cam member 36 of the output gear 35 is When it is disposed at the distal end, which is a position close to the cylinder 40 , the piston 50 to which the ring end unit 52 of the connecting rod 51 is coupled to the cam member 36 is arranged at the distal end of the cylinder 40 .

In addition, a magnet (not shown) is mounted on the output gear 35 , and a hall IC (not shown) is disposed under the output gear 35 , so that the hall IC is generated for each rotation of the output gear 35 . magnet is detected.

As the sensing signal of the hall IC is output to a controller (not shown) of a washing machine (not shown), the operation of the motor is controlled by the controller to adjust the amount of detergent input.

A configuration of a piston pump in which a piston 50 is mounted on the cylinder 40 to perform a reciprocating stroke is already well known, and a detailed description thereof will be omitted.

The automatic detergent dispensing device for a washing machine according to the present invention configured as described above operates as follows.

As shown in FIG. 5, in the state disposed at the tip of the cylinder 40 close to the suction pipe 65, the power of the motor 20 is transmitted to the piston 50 through the gear transmission means 30, in FIG. As shown in 4, when the piston 50 retreats from the front end to the rear end of the cylinder 40 in the direction of the arrow 55, the first check valve 80 of the suction pipe 65 is opened, and the liquid detergent It is sucked into the inside of the cylinder 40 through the suction pipe 65 , and the second check valve 90 of the discharge pipe 70 is closed, so that external pressure or an external fluid is introduced into the cylinder 40 through the discharge pipe 70 . It is prevented from entering into the air (suction stroke).

Then, in the state of FIG. 4 , the power of the motor 20 is transmitted to the piston 50 through the gear transmission means 30 , and as shown in FIG. 5 , the piston 50 moves in the direction of the arrow 56 . When the cylinder 40 moves forward from the rear end to the front end, the second check valve 90 of the discharge pipe 70 is opened, and the liquid detergent inside the cylinder 40 is discharged to the washing tub through the discharge pipe 70 and , the first check valve 80 of the suction pipe 65 is closed to prevent the liquid detergent inside the cylinder 40 from flowing back into the detergent container through the suction pipe 65 .

As described above, in the automatic detergent dispensing device for washing machine according to the present invention according to the present invention, after liquid detergent is sucked into the cylinder 40 through the suction pipe 65 by the reciprocating stroke of the piston 50, the cylinder 40 It is discharged to the washing tub of the washing machine through the discharge pipe 70 from the inside of the

10: housing 20: motor
30: gear transmission means 40: cylinder
50: piston 60: cylinder header
65: suction pipe 70: discharge pipe
80: first check valve 90: second check valve

Claims (5)

The housing 10 is composed of a case 11 and a cover 12 , and a motor box unit 111 in which the motor 20 is disposed in the housing 10 , and a gear box unit in which the gear transmission means 30 is disposed. 112 is integrally formed, and the cylinder connection part 113 is formed on the side of the gear box part 112 , and the motor box part 111 is disposed on the upper part of the gear box part 112 and the cylinder connection part 113 . One end of the cylinder 40 is connected to the cylinder connection part 113, the piston 50 is disposed inside the cylinder 40, and the connecting rod 51 of the piston 50 is a gear transmission means 30 is coupled to the cam member 36 of the cylinder 40, the cylinder header 60 is coupled to the other end of the cylinder 40, the suction pipe 65 and the discharge pipe 70 are respectively connected to the cylinder header 60, ), the discharge pipe 70 is disposed on the upper part, the first check valve 80 is mounted on the suction pipe 65, and the second check valve 90 is mounted on the discharge pipe 70, thereby the motor 20 power is transmitted to the piston 50 through the gear transmission means 30, and the piston 50 performs a suction stroke and a discharge stroke in the cylinder 40, and the first check valve ( 80 is opened, the second check valve 90 of the discharge pipe 70 is closed, the second check valve 90 of the discharge pipe 70 is opened during the discharge stroke, and the first check valve of the suction pipe 65 is opened. (80) automatic detergent dispensing device for washing machine, characterized in that it is closed.
The method of claim 1,
The first check valve 80 may be molded of any one material of rubber, silicone, or polyurethane, and a flange portion 83 is formed around one end of the cylindrical portion 82 in which the hollow portion 81 is formed, At the other end of the cylindrical portion 82, first and second flat plate inclined portions 84 and 85 are formed to face each other, and the first and second flat plate inclined portions 84 and 85 have their front ends in contact with each other. An automatic detergent dispensing device for washing machine, characterized in that the opening 86 of a straight line is formed at the tip of the first and second inclined portions of the flat plate (84, 85).
The method of claim 1,
The configuration of the second check valve 90 is the same as that of the first check valve 80, and the discharge pipe ( 70), automatic detergent dispensing device for washing machine, characterized in that it is mounted on.
The method of claim 1,
In the gear transmission means 30 , the first gear part 33 of the electric gear 32 is interlocked with the driving gear 31 mounted on the driving shaft 20 of the motor 20 , and the first gear of the electric gear 32 is interlocked. 2 The output gear 35 is interlocked with the gear part 34 , the cam member 36 is disposed on one side of the output gear 35 , and the connecting rod 51 of the piston 50 is disposed on the cam member 36 . Automatic detergent dispensing device for washing machine, characterized in that the ring end portion (52) formed in the coupling is coupled.
5. The method of claim 4,
The output gear (35) is equipped with a magnet, and a hall IC is disposed under the output gear, so that the hall IC senses the magnet for each rotation of the output gear (35). .

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