WO2015161607A1

WO2015161607A1 - Washing machine automatic dispensing system

Info

Publication number: WO2015161607A1
Application number: PCT/CN2014/085718
Authority: WO
Inventors: 班永; 周福昌; 王立东; 周椿浩
Original assignee: 无锡小天鹅股份有限公司
Priority date: 2014-04-22
Filing date: 2014-09-02
Publication date: 2015-10-29

Abstract

Provided are a washing machine automatic dispensing system, and a washing machine having the automatic dispensing system used for a washing machine. The automatic delivery system used for a washing machine comprises: a detergent storage case (10) internally defining a plurality of detergent storage chambers (11, 12); a transfer case (20) having a plurality of liquid inlets (21, 22) and a liquid outlet (23); the detergent storage case (10) is in communication with the transfer case (20) and the plurality of liquid inlets (21, 22) corresponds one-to-one to the plurality of detergent storage chambers (11, 12); an electromagnetic switching unit (30) is mounted on the transfer case (20) and used for selectively connecting one of the plurality of liquid inlets (21, 22) to the liquid outlet (23); a dispensing pump (40) has an inlet (41) and an outlet (42), and the inlet (41) of the dispensing pump (40) is connected to the liquid outlet (23).

Description

Washing machine and its automatic delivery system

Technical field

The present invention relates to the field of household appliances, and in particular to an automatic dispensing system for a washing machine and a washing machine having the automatic dispensing system for the washing machine.

Background technique

With the advancement of technology, the existing automatic washing machines have appeared to automatically release the detergent function. Through the washing machine program control, according to the calculated amount of detergent delivery, the detergent in the detergent storage container is put into the washing tub by using the delivery pump. washing. However, existing automatic washing machines usually put a variety of detergents, such as laundry detergent, softener, disinfectant, and the like. This requires a plurality of delivery pumps for delivery, a large number of delivery pumps, a complicated structure, and a high cost.

Summary of the invention

The present invention aims to solve at least one of the technical problems in the related art to some extent.

Accordingly, it is an object of the present invention to provide an automatic dispensing system for a washing machine that can dispense multiple detergents with a delivery pump, which is simple in construction and low in cost.

Another object of the present invention is to provide a washing machine having the above-described automatic dispensing system for a washing machine.

An automatic dispensing system for a washing machine according to an embodiment of the present invention includes a detergent storage box defining a plurality of detergent storage chambers therein; an electromagnetic steering valve including a plurality of inlets a liquid outlet, a liquid outlet, a water inlet, and an electromagnetic control assembly, wherein the detergent storage box is in communication with the electromagnetic steering valve, wherein the plurality of liquid inlets are respectively associated with the plurality of detergent storage chambers Correspondingly, the water inlet of the electromagnetic steering valve is used to communicate with the water inlet valve; and the injection pump has an inlet and an outlet, and an inlet of the injection pump is connected to the liquid outlet; Actuation control of the electromagnetic control unit in the electromagnetic steering valve, the liquid outlet is in communication with one of the liquid inlets and is disconnected from the remaining liquid inlets, so that the delivery pump pumps the selected detergent to the chamber An outlet of the delivery pump; wherein, after pumping the detergent of the one of the inlets to the outlet of the delivery pump, selectively connecting the inlet valve to the water inlet of the electromagnetic steering valve to pass the water inlet The valve will pass water into the water , A liquid outlet to the pump outlet.

According to the automatic dispensing system for a washing machine according to the embodiment of the present invention, one of the plurality of liquid inlets can be selectively connected to the liquid outlet, and a plurality of detergents can be dispensed by using a delivery pump, and the structure is simple and the cost is reduced.

Further, the automatic dispensing system for a washing machine according to the above-described embodiment of the present invention may further have the following additional technical features:

According to an example of the present invention, the electromagnetic steering valve includes an electromagnetic switching unit, and the electromagnetic switching unit includes A plurality of solenoid valves corresponding one to one with a plurality of inlet ports.

According to an example of the present invention, each of the plurality of solenoid valves includes: an electromagnet having a channel defining an opening downward; an iron core, the iron core being movable up and down And a spring, the upper end of the spring abuts against the top wall of the passage and the lower end of the spring abuts against the upper end of the iron core to push the lower end of the iron core downward to close the corresponding liquid inlet mouth.

According to an example of the present invention, each of the plurality of solenoid valves further includes a gasket disposed between a lower end of the core and a corresponding liquid inlet.

According to an example of the invention, the gasket is a rubber gasket.

According to an example of the invention, the automatic dispensing system for a washing machine further includes a flushing branch that connects the water inlet valve to the water inlet.

A washing machine according to an embodiment of the present invention, comprising: a washing tub; and the automatic dispensing system for a washing machine according to any one of the above, wherein an outlet of the dispensing pump is connected to the washing tub.

The additional aspects and advantages of the invention will be set forth in part in the description which follows.

DRAWINGS

1 is a schematic diagram of an automatic dispensing system for a washing machine in accordance with one embodiment of the present invention;

2 is a schematic diagram of an electromagnetic steering valve for an automatic dispensing system of a washing machine in accordance with another embodiment of the present invention; and

Figure 3 is a cross-sectional view taken along line A-A of Figure 2 .

detailed description

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

An automatic dispensing system for a washing machine in accordance with an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, an automatic dispensing system for a washing machine according to an embodiment of the present invention includes a detergent storage box 10 in which a plurality of detergent storage chambers are defined; an electromagnetic steering valve 20, the electromagnetic steering valve 20 includes a plurality of

liquid inlets

21, 22, a liquid outlet 23, a water inlet 24, and an electromagnetic control assembly, and the detergent storage box 10 is in communication with the electromagnetic steering valve 20, wherein The plurality of

liquid inlets

21, 22 are respectively in one-to-one correspondence with the plurality of detergent storage chambers, and the water inlet 24 of the electromagnetic steering valve 20 is for communicating with the water inlet valve 51.

a pump 40 is provided, the delivery pump 40 having an inlet 41 and an outlet 42, the inlet 41 of the delivery pump and the outlet Port 23 is connected.

Wherein, the liquid outlet 23 communicates with one of the liquid inlets 21 and is disconnected from the remaining liquid inlets 22 by the actuation of the electromagnetic control unit in the electromagnetic steering valve 20, so that the dispensing pump 40 is The selected detergent is pumped to the outlet 42 of the delivery pump 40. Such an automatic dispensing system can selectively connect one of the plurality of liquid inlets with the liquid outlet, and can use a delivery pump to deliver a plurality of detergents, and has a simple structure and a low cost.

In some embodiments, the inlet valve 51 is selectively coupled to the water inlet 24 of the electromagnetic steering valve 20 after pumping the detergent from the one of the inlet ports 21 to the outlet 42 of the delivery pump 40. The water is pumped through the water inlet port 24 and the liquid outlet 23 to the outlet 42 through the water inlet valve 51. It should be noted that after the detergent is pumped from the one of the inlet ports 21 to the outlet 42 of the delivery pump 40, the electromagnetic steering valve 20 and/or the delivery pump 40 may be blocked due to frequent use of the detergent. Selectively connecting the water inlet valve 51 to the water inlet 24 of the electromagnetic steering valve 20 and pumping water through the water inlet port 24 and the liquid outlet port 23 to the outlet port 42 through the water inlet valve 51 can serve as a cleaning function. There is no problem of clogging the electromagnetic steering valve 20 and/or the dispensing pump 40 due to the use of detergent.

Specifically, a plurality of

detergent storage chambers

11, 12 are defined within the detergent storage case 10. As shown in Figure 1, there may be two

detergent storage chambers

11 and 12. Of course, the number of detergent storage chambers can be increased based on the type of detergent on the basis of the embodiment shown in Fig. 1, for example, three, four, etc., as will be understood by those skilled in the art. . It should be noted that the detergent herein includes a detergent, a disinfectant or a softener, etc., that is, a detergent generally refers to a liquid used for washing in a washing machine.

The electromagnetic steering valve 20 has a plurality of

liquid inlets

21, 22 and a liquid outlet 23. The detergent storage box 10 is in communication with the electromagnetic steering valve 20 and the plurality of

liquid inlets

21, 22 are in one-to-one correspondence with the plurality of

detergent storage chambers

11, 12. That is, as shown in FIG. 1, the detergent storage chamber 11 corresponds to the liquid inlet 21, and the detergent storage chamber 12 corresponds to the liquid inlet 22. When the number of detergent storage chambers increases on the basis of Fig. 1, the number of liquid inlets also increases accordingly.

The electromagnetic steering valve includes an electromagnetic switching unit, and the electromagnetic switching unit includes a plurality of electromagnetic valves that are in one-to-one correspondence with the plurality of liquid inlets.

The dispensing pump 40 has an inlet 41 and an outlet 42. The inlet 41 of the delivery pump 40 is connected to a liquid outlet 23.

An automatic dispensing system for a washing machine according to an embodiment of the present invention, wherein one of the plurality of liquid inlets is selectively communicated with the liquid outlet through the electromagnetic steering valve, and a plurality of detergents can be dispensed by using a delivery pump. Simple and cost-effective.

The electromagnetic switching unit may include a plurality of switches corresponding to the plurality of liquid inlets in one-to-one correspondence. One of the plurality of

inlet ports

21, 22 is selectively communicated with the outlet port 23 by opening and closing the switch.

Advantageously, based on the need for automatic control, in accordance with a specific example of the present invention, the electromagnetic switching unit 30 can include a plurality of

solenoid valves

31, 32 that are in one-to-one correspondence with the plurality of

inlet ports

21, 22.

Further, according to an example of the present invention, the solenoid valve 31 includes an electromagnet 311, a core 312, and a spring 313. Specifically, the electromagnet 31 defines a passage therein with an opening downward (i.e., below as shown in Fig. 3). The iron core 312 is disposed in the passage in a vertically movable manner. The upper end of the spring 313 abuts against the top wall of the passage and the lower end of the spring 313 abuts against the upper end of the core 312 to close the lower end of the core 312 to close the inlet port 21 downward. The solenoid valve 31 further includes a gasket 314 disposed between the lower end of the core 312 and the liquid inlet port 21.

The solenoid valve 32 includes an electromagnet 321 , a core 322 and a spring 323. Specifically, the electromagnet 32 defines a passage having an opening 2 downward. The iron core 322 is disposed in the passage in a vertically movable manner. The upper end of the spring 323 abuts against the top wall of the passage and the lower end of the spring 323 abuts against the upper end of the core 322 to close the lower end of the core 322 to close the inlet port 22 downward. The solenoid valve 32 also includes a gasket 324 disposed between the lower end of the core 322 and the inlet port 22.

The

gaskets

314, 324 can be rubber gaskets.

When the number of detergent storage chambers and the number of inlet ports increase correspondingly on the basis of Fig. 1, the number of solenoid valves also increases accordingly.

According to an example of the present invention, the automatic dispensing system for a washing machine further includes a flushing branch 50, the flushing branch 50 connecting the inlet valve 51 and the water inlet 24, and the output end of the flushing branch 50 The nozzles 24 are connected.

The operation of the automatic dispensing system for a washing machine in accordance with an embodiment of the present invention will be briefly described below.

When it is necessary to discharge the detergent in the detergent storage chamber 11, the electromagnet 311 is energized, the iron core 312 is attracted by the suction force of the electromagnet 311, and moves upward against the elastic force of the spring 313, and the liquid inlet 21 and the liquid outlet 23 In connection with the delivery pump 40, the detergent in the detergent storage chamber 11 can be dispensed. When the detergent is dispensed, the electromagnet 311 is de-energized, the iron core 312 is moved downward by the restoring force of the spring 313, and the lower end of the iron core 312 closes the liquid inlet port 21. In order to avoid waste of detergent as much as possible, and to avoid mutual influence between different detergents, after the detergent is dispensed, the flushing branch can be flushed to the electromagnetic switching unit and/or the delivery pump 40, and the flushing liquid can also be dispensed. The pump 40 enters the wash tub 50 to participate in the washing.

The process of dispensing the detergent in the detergent storage chamber 12 is the same as the process of dispensing the detergent in the detergent storage chamber 11, and will not be described herein.

As shown in FIG. 1, a washing machine according to an embodiment of the present invention includes: a washing tub 60 and an automatic dispensing system for a washing machine according to any of the above. The outlet 42 of the delivery pump 40 is connected to the washing tub 60.

According to the detergent dispensing device for a washing machine according to an embodiment of the present invention, the switching unit is mounted on the intermediate transfer box for selectively connecting one of the plurality of liquid inlets with the liquid outlet, and the plurality of liquid inlets can be used to deliver a plurality of types. Detergent, simple structure and low cost.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " After, "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship of the "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of describing the present invention and simplifying the description, rather than indicating or implying The device or component referred to must have a particular orientation, is constructed and operated in a particular orientation, and thus is not to be construed as limiting the invention.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is two or more unless specifically and specifically defined.

In the present invention, the terms "installation", "connected", "connected", "fixed" and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In the present invention, the first feature "on" or "under" the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact. Moreover, the first feature "above", "above" and "above" the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms is not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, various embodiments or examples described in the specification, as well as features of various embodiments or examples, may be combined and combined.

Although the embodiments of the present invention have been shown and described, it is understood that the above-described embodiments are illustrative and are not to be construed as limiting the scope of the invention. The embodiments are subject to variations, modifications, substitutions and variations.

Claims

An automatic dispensing system for a washing machine, comprising:

a detergent storage box (10), wherein the detergent storage box defines a plurality of detergent storage chambers;

An electromagnetic steering valve (20) comprising a plurality of liquid inlets (21, 22), a liquid outlet (23), a water inlet (24), and an electromagnetic control assembly, the detergent storage box (10) communicating with the electromagnetic steering valve (20), wherein the plurality of liquid inlets (21, 22) are respectively in one-to-one correspondence with the plurality of detergent storage chambers, and the electromagnetic steering valve (20) The water inlet (24) is used to communicate with the inlet valve (51); and

a pump (40) having an inlet (41) and an outlet (42), the inlet (41) of the delivery pump being connected to the outlet (23); wherein Actuation control of the electromagnetic control unit in the steering valve (20), the liquid outlet (23) communicates with one of the liquid inlets (21) and is disconnected from the remaining liquid inlets (22) to enable the discharge a pump (40) pumps the selected detergent to the outlet (42) of the delivery pump (40);

Wherein, after the detergent of the one of the inlet ports (21) is pumped to the outlet (42) of the delivery pump (40), the inlet valve (51) and the electromagnetic steering valve (20) are selectively selected. The water inlet (24) is in communication to pump water through the water inlet (24) and the liquid outlet (23) to the outlet (42) through the inlet valve (51).
The automatic dispensing system for a washing machine according to claim 1, wherein the electromagnetic steering valve includes an electromagnetic switching unit, and the electromagnetic switching unit includes a plurality of electromagnetic valves that are in one-to-one correspondence with the plurality of liquid inlets.
The automatic dispensing system for a washing machine according to claim 2, wherein each of said plurality of solenoid valves comprises:

An electromagnet, wherein the electromagnet defines a channel with an opening downward;

An iron core, the iron core being movably disposed in the passage; and

a spring, the upper end of the spring abuts against the top wall of the passage and the lower end of the spring abuts against the upper end of the core to normally push the lower end of the core downward to close the corresponding inlet.
The automatic dispensing system for a washing machine according to claim 3, wherein each of said plurality of solenoid valves further comprises a gasket, said gasket being disposed at a lower end of said core and corresponding into Between the liquid ports.
The automatic dispensing system for a washing machine according to claim 4, wherein the gasket is a rubber gasket.
The automatic dispensing system for a washing machine according to any one of claims 1 to 5, further comprising a flushing branch, the flushing branch connecting the water inlet valve and the water inlet.
A washing machine, comprising:

Washing bucket

The automatic dispensing system for a washing machine according to any one of claims 1 to 6, wherein an outlet of the dispensing pump is connected to the washing tub.