CN104019251B - A kind of washing machine of Electrocontrolled tee valve and the application Electrocontrolled tee valve - Google Patents

Abstract

The invention discloses an electric control three-way valve and a washing machine using the electric control three-way valve. The electric control three-way valve includes a cavity, and the cavity is a triangular prism-shaped hollow structure. Water inlet, drainage port and circulation port, the angle between the two walls where the drainage port and circulation port are located has a rotating shaft, the rotating shaft is connected with a rocking plate, and is driven by a motor assembly, which can drive the rotation The shaft rotates, so that the rocking plate swings left and right, so that the water inlet communicates with one of the water outlet or the circulation port. During the washing process, by turning on the drainage pump and connecting the water inlet and circulation port of the three-way valve, the laundry powder particles or high-concentration detergent deposited on the bottom of the outer tub and in the drainage pump are sent back to the washing tub of the washing machine through the inner circulation pipeline. , Solve the waste of detergent, improve the utilization rate of detergent, and improve the washing effect.

Description

An electronically controlled three-way valve and a washing machine using the electronically controlled three-way valve

technical field

The invention relates to the application field of washing machines, and more specifically, relates to an electronically controlled three-way valve and a washing machine using the electronically controlled three-way valve.

Background technique

At present, washing machines have been widely used in families. The structure of the existing washing machine water intake and detergent addition is to use the water intake to directly flush a certain amount of detergent or washing powder into the washing drum of the washing machine, and then add an appropriate amount of water. Dissolving and washing are carried out, and after washing is completed, it is discharged through the drain pipe at the bottom of the cylinder through the drain pump. During use, it is found that before the detergent is completely dissolved, a large amount of detergent will be deposited in a section of the drain pipe in front of the water inlet of the drain pump, making it difficult for this part of the detergent to be fully dissolved and utilized. It can be discharged with water during drainage, which reduces the utilization efficiency of detergent, causes waste of detergent, and aggravates environmental pollution.

Patent No. 201020236381.0 discloses a three-way drain valve for a washing machine, the upper end of the valve chamber is provided with a water inlet pipe, and the lower end is provided with two drain pipes, and the three pipes are distributed in an inverted Y shape. The valve chamber is in the shape of a disc or a sphere, and the valve chamber and the valve core are slidingly matched. There is a channel on the valve core, the upper part of the channel is a fan-shaped channel, and the lower part is in the shape of a pipe. But said three-way drain valve is manual structure, and only has principle, has no specific realization structure and practical application example, and washing machine is all automatic realization now, and this three-way drain valve is difficult to apply.

Contents of the invention

The object of the present invention is to provide an electronically controlled three-way valve, which can effectively solve the above problems by applying it to the existing washing machine.

In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:

An electronically controlled three-way valve, comprising a water inlet, a drain, a circulation port, a cavity and a motor assembly, the cavity is provided with a rocking plate, and the motor assembly can drive the rocking plate to swing left and right, so that the water inlet and the One of the drain port or the circulation port communicates with each other.

Preferably, the cavity is a triangular prism-shaped hollow structure, and the water inlet, drain port and circulation port are respectively arranged on three side walls thereof, and the angle between the two walls where the drain port and the circulation port are located has a rotation axis, so A rocking plate is connected to the rotating shaft.

Preferably, the rocking plate includes a connecting rib, one end of the connecting rib is fixedly connected to the rotating shaft, and the other end is connected with a water baffle for blocking the drainage port or the circulation port.

Preferably, the water baffle includes a plate cavity and a detachable plate core installed inside the plate cavity, and a central hole is arranged on the plate core.

Preferably, the core is provided with an annular groove around the central hole.

Preferably, the rocking plate and the rotating shaft are integrally formed.

Preferably, the included angle between the two walls where the drainage port and the circulation port are located is less than 90 degrees.

A washing machine using the above-mentioned electric control three-way valve is provided, the water inlet of the electric control three-way valve is connected to the water outlet of the drainage pump of the washing machine, and the circulation port of the electric control three-way valve is connected to the washing machine through an internal circulation pipe. The cylinder is connected; the drain port of the electric control three-way valve is connected to the drain pipe.

Preferably, a spray head is provided at the end of the inner circulation pipe entering the washing machine drum, and the circulating water is sprayed into the washing machine inner drum through the spray head.

As another washing machine using the above-mentioned electric control three-way valve, the water inlet of the electric control three-way valve is connected to the drain pipe at the bottom of the drum of the washing machine; The cylinder is connected; the drain port of the electric control three-way valve is connected to the drain pipe.

The beneficial effect of the present invention is that by setting an electronically controlled three-way valve in the washing machine and using the drain pump as the washing water circulation pump, during the washing process, by turning on the drain pump and connecting the water inlet and the circulation port of the three-way valve, the sediment The laundry powder particles or high-concentration detergent at the bottom of the outer tub and in the drainage pump are sent back to the washing tub of the washing machine through the inner circulation pipe, which solves the problem of wasting detergent, improves the utilization rate of detergent, and improves the washing effect; When the end of the circulation pipe is connected to the nozzle, the circulating water is evenly sprayed onto the clothes in the inner cylinder through the nozzle, which can achieve better washing effect. Because the motor assembly drives the rotating shaft to rotate, and then makes the rocking plate swing left and right, so that the water inlet is connected with the drain port or the circulation port, only one executive motor is needed, which reduces the production cost and enhances the reliability. It is beneficial to connect the control system of the washing machine through the circuit to realize the automation of the action. The water baffle of the rocking plate includes a plate cavity and a detachable plate core installed inside the plate cavity. In addition, the plate core is provided with a central hole, so the plate core can be replaced very easily. The board core is provided with an annular groove around the central hole, which can reduce the thickness of the board core, reduce weight, save material and reduce cost. When the rocking plate and the rotating shaft are integrally formed, the connection can be made more stable. The included angle between the two walls where the drain port and the circulation port are located is less than 90 degrees, and this angle can make the swinging range of the rocking plate relatively small, reducing the swinging time and reducing the difficulty of control.

Description of drawings

Fig. 1 and Fig. 2 are schematic structural diagrams of the complete washing machine with an electric control three-way valve described in Embodiment 1;

Fig. 3 is the front view of the electric control three-way valve described in the embodiment;

Fig. 4 is the perspective view of the electric control three-way valve described in the embodiment;

Fig. 5 is the rear view of the electronically controlled three-way valve described in the embodiment;

Fig. 6 is B-B direction sectional view in Fig. 3;

Fig. 7 is a C-C sectional view in Fig. 3;

Fig. 8 is a schematic structural view of the rocking plate described in the embodiment;

Fig. 9 is a schematic diagram of the whole structure of the washing machine with an electronically controlled three-way valve according to the second embodiment.

In the picture:

1. Washing machine shell; 2. Electric control three-way valve; 21. Drain port; 22. Circulation port; 23. Water inlet; 24. Motor assembly; 262, water retaining plate; 263, plate cavity; 264, plate core; 265, center hole; 3, drain pump; 4, drain pipe; 5, internal circulation pipe; 6, nozzle; 7, drain pipe.

Detailed ways

The technical solutions of the present invention will be further described below through specific embodiments.

Fig. 1 and Fig. 2 are schematic structural diagrams of the complete washing machine with an electronically controlled three-way valve described in Embodiment 1. As shown in the figure, on the basis of an ordinary washing machine, an electronically controlled three-way valve 2 is arranged behind the drain pump 3, and the drain port 21 of the electronically controlled three-way valve 2 is connected with the drain pipe 4 to drain the waste water after washing. Drain; the circulation port 22 of the electronically controlled three-way valve 2 is connected to the internal circulation pipe 5, and the internal circulation pipe 5 is located in the washing machine shell 1, along the gap between the washing machine shell 1 and the outer cylinder, and finally enters the washing machine washing tub.

Fig. 3 to Fig. 8 show the structural composition diagrams of the electronically controlled three-way valve 2 in the first embodiment. The electronically controlled three-way valve 2 includes a cavity 25, which is a triangular prism-shaped hollow structure composed of three square side walls, a triangular top wall and a triangular bottom wall. The three side walls are respectively provided with a water inlet 23 , a water outlet 21 and a circulation port 22 . A rotating shaft 27 is installed at the angle between the two walls of the drain port 21 and the circulation port 22. One end of the rotating shaft 27 is inserted into the top wall of the cavity 25, and the other end is inserted into the bottom wall of the cavity 25, and through the coupling It is connected with the output shaft of the motor assembly 24, and the rotation of the motor assembly 24 drives the rotation shaft 27 to rotate through the rotation of the output shaft, so as to drive the rotation shaft 27. A rocking plate 26 is connected to the rotating shaft 27, and the rocking plate 26 and the rotating shaft 261 are integrally formed, and this connection method is relatively stable. When the motor assembly 24 drives the rotating shaft 27 to rotate, the rocking plate 26 swings left and right, so that the water inlet 23 communicates with either the water outlet 21 or the circulation port 22 .

In this embodiment, the included angle between the two walls where the drain port 21 and the circulation port 22 are located is less than 90 degrees. This angle can make the swinging range of the rocking plate 26 relatively small, reducing the swinging time, reducing the difficulty of control, and increasing Flexibility, easy control. Of course, the angle may also be greater than or equal to 90 degrees.

In this embodiment, the rocking plate 26 and the rotating shaft 27 can also be two independent parts, which are connected together through a connecting device, but they are not as stable as an integrally formed part.

The rocking plate 26 includes a connecting rib 261 , one end of the connecting rib 261 is fixedly connected to the rotating shaft 27 , and the other end is connected with a water retaining plate 262 for blocking the drain port 21 or the circulation port 22 . Wherein the connecting rib 261 and the water retaining plate 262 are integrally formed, and this kind of structure is relatively stable. Wherein the water retaining plate 262 comprises a plate cavity 263 and a plate core 264 detachably installed inside the plate cavity 263, the plate core 264 is provided with a central hole 265, when the plate core 264 is damaged, the plate core can be easily replaced, increasing material utilization. The core 264 is provided with an annular groove around the central hole 265 . The thickness of the board core can be reduced, the weight can be reduced, the material can be saved, and the cost can be reduced.

In this embodiment, the connecting rib 261 and the water retaining plate 262 can also be two separate parts, which are connected together by a fixing device. This connection method can be combined and replaced the connecting rib 261 or the water retaining plate 262 more conveniently.

In this embodiment, the water baffle 262 may not be composed of the plate cavity 263 and the plate core 264, but may be an integral molding. But the rocking plate 26 of this kind structure is inconvenient to replace parts.

In this embodiment, a nozzle 6 is installed at the end of the inner circulation pipe 5, so that the washing powder particles or high-concentration detergent deposited between the drain pipe 7 at the bottom of the outer tub and the electronically controlled three-way valve 2 can be sprayed through the nozzle 6. Spray it on the clothes in the washing tub, which can completely dissolve the washing powder or detergent and improve the washing effect of the clothes.

Fig. 9 is a schematic diagram of the whole structure of the washing machine with an electronically controlled three-way valve according to the second embodiment. It differs from Embodiment 1 in that the installation method of the electronically controlled three-way valve 2 is different: the water inlet 23 of the electronically controlled three-way valve 2 is connected to the drain outlet 7 at the bottom of the drum of the washing machine; the circulation port of the electronically controlled three-way valve 2 22 communicates with the washing tub of the washing machine through the drain pump 3 through the internal circulation pipe 5; the drain port 21 of the electronically controlled three-way valve 2 is connected to the drain pipe 4.

In the above-mentioned washing machine, the working principle of the electronically controlled three-way valve 2 is as follows: when the motor is powered on, the left and right rotation of the motor output shaft drives the rotation shaft 27 to rotate left and right, and then controls the rocking plate 26 to swing left or right, and swinging to the right can Close the drain port 21, make the water inlet 23 communicate with the circulation port 22, and make water flow out from the circulation port 22. Under the action of the drainage pump 3, the washing water in the washing machine circulates repeatedly in the washing tub through the inner circulation pipe 5. Turning to the left can close the circulation port 22, so that the water inlet 23 communicates with the drain port 21, and the washing water in the washing machine is directly discharged through the drain port 21. If the drain pump 3 does not start, then maintain the washing state of neither spraying nor draining.

Specifically, during the washing process, after the washing water enters a certain water level, the drainage pump 3 is always turned on or intermittently turned on, and the electric control three-way valve 2 is started, and the swing plate 26 is controlled to swing to the right by the rotation of the motor assembly 24 , close the drain port 21, make the water inlet 23 communicate with the circulation port 22, and make the water flow out from the circulation port 22. Under the action of the drain pump 3, the washing water in the washing machine circulates repeatedly in the washing tub through the inner circulation pipe 5, which can Prevent washing powder or detergent from settling in the drain pipe 7 and fully dissolve in the circulation process to be fully utilized. At the same time, the high-concentration washing water is sprayed into the clothes in the washing tub through the nozzle 6 of the circulation system to maximize the The cleanliness of the clothes. If the drain pump 3 does not start, then maintain the washing state of neither spraying nor draining.

After the washing process is finished, the drainage program is reached, and the electronically controlled three-way valve 2 is started. Through the rotation of the motor assembly 24, the rocking plate 26 is controlled to swing to the left, and the circulation port 22 is closed so that the water inlet 23 communicates with the drain port 21. The washing in the washing machine The water is drained directly through the drain 21 .

The difference between the above two embodiments is that when the washing machine in embodiment 1 is draining water, the drain pump 3 can work or be turned off; when the washing machine in embodiment 2 is draining water, the drain pump 3 is turned off at this time.

For the rinsing process, it can be the same as the washing process, and the electric control three-way valve can be opened to the drain port 21, which is the same as the normal rinsing process.

The technical solution described in the present invention can be applied to drum washing machines or pulsator washing machines. The electric control three-way valve can be connected to the control system of the washing machine through a circuit, and the corresponding program control can be used to realize the automation of actions.

The above describes the technical principles of the present invention in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present invention, and cannot be construed as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can think of other specific implementation modes of the present invention without creative efforts, and these modes will all fall within the protection scope of the present invention.

Claims (7)

1. a kind of Electrocontrolled tee valve, including water inlet (23), discharge outlet (21), circulation port (22), cavity volume (25) and motor group Part (24), it is characterised in that：Rocker (26) is equipped with the cavity volume (25), the electric machine assembly (24) can drive rocker (26) It is swung left and right, water inlet (23) is communicated with discharge outlet (21) or circulation port (22) one of both；

The cavity volume (25) is triangular prism shape hollow structure, and water inlet (23), discharge outlet (21) and circulation port (22) are set respectively On three of them side wall, the angle of two walls where the discharge outlet (21) and circulation port (22) has a rotation axis (27), described turn Rocker (26) is connected with moving axis (27)；

The rocker (26) includes connection floor (261), and one end of the connection floor (261) is fixedly connected on rotation axis (27) On, the other end is connected with the water fender (262) for blocking discharge outlet (21) or circulation port (22)；

The water fender (262) includes plate chamber (263) and is detachably arranged in the internal plate core (264) of plate chamber (263), described Centre bore (265) is provided with plate core (264).

2. Electrocontrolled tee valve according to claim 1, it is characterised in that：Around centre bore on the plate core (264) (265) it is provided with cricoid groove.

3. Electrocontrolled tee valve according to claim 1, it is characterised in that：The rocker (26) is integrated with rotation axis (27) Shaping.

4. Electrocontrolled tee valve according to claim 1, it is characterised in that：Where the discharge outlet (21) and circulation port (22) The angle of two walls is less than 90 degree.

A kind of 5. washing machine using any Electrocontrolled tee valve of Claims 1-4, it is characterised in that：The Electrocontrolled tee valve (2) water inlet (23) is connected with draining pump (3) water outlet of the washing machine, the circulation port (22) of Electrocontrolled tee valve (2) Connected by inner circulating tube (5) with washing of drum type washing machine cylinder；Discharge outlet (21) the connection drainpipe of the Electrocontrolled tee valve (2) (4)。

6. washing machine according to claim 5, it is characterised in that：Enter in the inner circulating tube (5) in laundry machine barrel One end end is equipped with a nozzle (6), and recirculated water is sprayed into inner tank of washing machine through the nozzle (6).

A kind of 7. washing machine using any Electrocontrolled tee valve of Claims 1-4, it is characterised in that：The Electrocontrolled tee valve (2) water inlet (23) is connected with laundry machine barrel bottom drainpipe (7)；The circulation port (22) of Electrocontrolled tee valve (2) passes through draining pump (3) connected through inner circulating tube (5) with washing of drum type washing machine cylinder；Discharge outlet (21) the connection drainpipe of the Electrocontrolled tee valve (2) (4)。