CN110872756A

CN110872756A - Washing machine

Info

Publication number: CN110872756A
Application number: CN201910185690.5A
Authority: CN
Inventors: 王嘉; 吴登军; 涂有明; 宋三力; 孙锦
Original assignee: Wuxi Little Swan Co Ltd
Current assignee: Wuxi Little Swan Co Ltd; Wuxi Little Swan Electric Co Ltd
Priority date: 2018-08-31
Filing date: 2019-03-12
Publication date: 2020-03-10
Also published as: CN110872754A; CN110872753A; CN110872755A

Abstract

The invention relates to the field of washing machines, and discloses a washing machine which comprises a first washing unit with a first washing cavity, a door cover assembly and a second washing unit with a second washing cavity, wherein the door cover assembly comprises a second door (20) and a first door (30) with an inner cavity as the second washing cavity, the first door is pivotally connected to the end surface of a front sealing door (10) of the washing machine through a first door pivot part to open and close the first washing cavity, the second door is pivotally connected to the front end surface of the first door to open and close the second washing cavity, the second washing unit comprises a second washing unit water inlet pipe (805) and a second washing unit water outlet pipe (806), a water outlet (704) is formed in the top of the second washing cavity, the second washing unit water inlet pipe is connected with the water outlet, and the second washing unit water outlet pipe is connected to the bottom of the second washing cavity. The washing machine provided by the invention is provided with two independent washing cavities, is suitable for classified washing, better meets the user requirements, and has the advantages of good safety and reliability and good washing effect due to the adoption of static washing.

Description

Washing machine

Technical Field

The invention belongs to the field of washing machines.

Background

In daily life, small-size clothes with small quantity are often needed to be washed, and at the moment, the problem of wasting water resources and electric power resources exists when the clothes are washed by the washing machine, because the minimum water level of a common washing machine is far beyond the requirement of washing small clothes. And the clothes with different colors and types also have the requirement of classified batch washing so as to avoid cross contamination or damage to the clothes, and the conventional washing machine is difficult to meet the requirement of users.

Accordingly, a washing machine having a plurality of washing chambers is gradually developed. For example, the double-drum washing machine can perform classified washing simultaneously, but the washing barrel of the washing machine occupies more space of the machine body, so that the whole size of the washing machine is increased, and more space of a home is occupied.

Disclosure of Invention

Aiming at the defects and shortcomings of the prior art, the invention provides the washing machine which can be used for washing clothes in a classified mode, better meets the requirements of users, and is safe, reliable, water-saving and energy-saving.

In order to achieve the above object, the present invention provides a washing machine, which includes a first washing unit having a first washing chamber, a door cover assembly and a second washing unit having a second washing chamber, wherein the door cover assembly includes a second door and a first door having an inner cavity as the second washing chamber, the first door is pivotally connected to an end surface of a front sealing door of the washing machine through a first door pivot portion to open and close the first washing chamber, the second door is pivotally connected to a front end surface of the first door to open and close the second washing chamber, the second washing unit includes a second washing unit water inlet pipe and a second washing unit water outlet pipe, a water outlet is provided at a top of the second washing chamber, the second washing unit water inlet pipe is connected to the water outlet, and the second washing unit water outlet pipe is connected to a bottom of the second washing chamber.

Optionally, a second washing unit drain port is provided at a bottom of the second washing chamber, and the first door pivot portion includes a lower hinge through which the second washing unit drain pipe is connected to the second washing unit drain port.

Optionally, the second washing unit comprises a second washing unit water inlet pipe, the first door pivot portion comprises an upper hinge, and the second washing unit water inlet pipe passes through the upper hinge to be connected to the water outlet.

Optionally, the first door bag is connected with the front and the back of the first door bag and comprises a first door outer door ring, a first door inner door ring and a first door glass extending backwards from the first door inner door ring, and the first door glass is formed with the second washing cavity;

the second washing unit water inlet pipe and the part of the second washing unit water outlet pipe extending into the door cover assembly are clamped between the first door outer door ring and the first door inner door ring.

Optionally, a first door sealing ring is arranged on the inner peripheral edge of the inlet of the first washing cavity of the front sealing door, a second door sealing ring is arranged on the inner peripheral edge of the inlet of the second washing cavity of the first door outer door ring, and the second door comprises a second door outer door ring, a second door inner door ring and second door glass, wherein the second door outer door ring, the second door inner door ring and the second door glass are connected in a front-back mode;

when the second door and the first door are both in a pivoting closed state, the peripheral wall of the second door glass is in sealing fit with the second door sealing ring, and the peripheral wall of the first door glass is in sealing fit with the first door sealing ring.

Further, the second washing unit comprises a microbubble generation device, and the water inlet pipe of the second washing unit is the water outlet pipe of the microbubble generation device.

Optionally, a water inlet valve and a flow meter are arranged in the water inlet pipe of the micro-bubble generating device.

Optionally, the first washing unit includes a first washing unit drain pipe, a first traction valve, a drain pump and an outer drain pipe through which outer drain flows in sequence, and the second washing unit includes the second washing unit drain pipe, a second traction valve, a drain branch pipe and the drain pump which are arranged in sequence in an outer drain flow direction.

Further, the second washing unit comprises a fan and an air inlet pipe, an air inlet is formed in the bottom of the second washing cavity, and the air inlet pipe sequentially penetrates through the front sealing door and is connected to the air inlet through the lower hinge.

Optionally, the washing machine includes a material box, the second washing unit includes an exhaust duct, an exhaust port is disposed at the top of the second washing chamber, one end of the exhaust duct communicates with the exhaust port, and the other end of the exhaust duct passes through the upper hinge and is connected to the material box.

Optionally, a supporting plate densely distributed with air holes is arranged in the second washing cavity, and the supporting plate is arranged at the bottom of the cavity and located above the air inlet.

In the washing machine of the present invention, the door cover assembly includes a second door closing the first washing chamber and a first door closing the second washing chamber inside the first door, whereby double washing chambers may be formed inside the washing machine to be suitable for classified washing. Particularly, the second washing cavity is a static washing small piece washing cavity, and the small piece washing cavity is sprayed and washed through the water outlet. Furthermore, airflow can be adopted for assisting washing, so that the stirring of washing liquid is enhanced, and the washing effect is enhanced. The door cover assembly is simpler, the rotary roller assembly is omitted, the use is safer and more reliable, the pipeline extends into the door cover assembly and the whole machine through the pivot part, and the appearance is not influenced due to the hidden design.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a front view of a washing machine according to an embodiment of the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1, with extraneous portions omitted to highlight the door assembly;

fig. 3 is a perspective view of a door cover assembly of a washing machine according to an embodiment of the present invention, showing a state where a second door is opened;

FIG. 4 is a cross-sectional view B-B of FIG. 3;

fig. 5 and 6 are perspective views of a washing machine according to an embodiment of the present invention, in different viewing angles, wherein a water path system and an air path system are highlighted, and irrelevant parts such as an outer shell are omitted.

Description of the reference numerals

W whole machine

10 front sealing door 20 second door

30 first door 40 first washing tub

50 magazine inlet tube 90 magazine

201 second door outer door ring 202 second door inner door ring

203 second door glass 204 second door sealing ring

301 first door outer door ring 302 first door inner door ring

303 first door glass 304 first door sealing ring

305 supporting plate 306 upper hinge

307 lower hinge

601 drain pump 602 first traction valve

603 second traction valve 604 first wash unit drain

605 drainage branch pipe 606 outer drainage pipe

701 blower 702 air inlet pipe

702a air inlet 703 exhaust pipe

703a air outlet 704 water outlet

801 inlet valve 802 inlet pipe

803 flowmeter 804 microbubble generator

805 second washing unit water inlet pipe 806 second washing unit drain pipe

806a second washing unit drain

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like are generally described with respect to the orientation shown in the drawings or the positional relationship of the components with respect to each other in the vertical, or gravitational direction. The terms of orientation such as "front and back" are generally used in terms of relative positional relationships of the respective parts with respect to the operating user, i.e., the part close to the user is front and the part far away from the user is back.

The invention provides a washing machine in a targeted manner in order to realize classified washing, save space and improve the reliability of the whole machine. The invention is described in detail below with reference to the accompanying drawings in conjunction with specific embodiments.

Referring to fig. 1 to 6, in the washing machine according to the present invention, in this embodiment, the whole machine W of the washing machine includes a first washing unit having a first washing chamber and a second washing unit having a second washing chamber, i.e., classified washing can be achieved, and user satisfaction can be improved.

In order to form the second washing chamber, the door cover assembly of the washing machine includes a second door 20 and a first door 30 having an inner cavity as the second washing chamber, the first door 30 is pivotally connected to an end surface of the front sealing door 10 of the washing machine through a first door pivot portion to open and close the first washing chamber, and the second door 20 is pivotally connected to a front end surface of the first door 30 to open and close the second washing chamber. In particular, referring to fig. 4, a water outlet 704 is formed at the top of the second washing chamber, and a spraying device, such as a shower head, is installed at the water outlet 704, and the second washing chamber is washed by spraying, that is, the second washing chamber is a static washing chamber, not a drum-type rotating washing chamber. The second washing chamber is thus a small piece washing chamber suitable for washing small batches of small-size laundry.

As will be described in detail below, the second washing unit adopts a static washing mode of spray washing, and further includes an airflow auxiliary washing system for at least forming a pressure airflow flowing through the washing liquid in the second washing chamber to improve the fluidity of the washing liquid, so that the washing efficiency, sterilization and washing effects are better.

Compared with the prior double-drum washing machine, most of the prior double-drum washing machines are in a double-drum form, and have complex structures and large occupied space. For example, chinese patent CN104805630B discloses a washing machine having a plurality of outer tubs, which can perform washing in a plurality of spaces. The washing machine comprises: a casing, wherein the first outer barrel is accommodated in the casing; a first door for opening and closing the laundry inlet formed on the housing, the first door having a second tub; a second door for opening and closing the inlet of the second outer barrel; a first water supply unit and a second water supply unit for respectively supplying washing water to the inside of the first outer tub and the inside of the second outer tub; and a first and a second drainage unit for draining the washing water inside the first and the second outer tub. Obviously, in the technical solution of this patent, the second drum is rotatably disposed inside the second outer tub and has a driving unit, and the rotating structure, the driving structure, and the routing structure of the second drum are very complex, and the safety and reliability are poor, the heat dissipation of the driving unit is poor, and the door body is easily damaged by the rotation of the second drum. Therefore, the scheme is easy to have problems in the aspects of sealing, heat dissipation, fixing and the like of motor driving and magnetic field driving, and the manufacturing and maintenance cost is relatively high.

Compared with the roller washing of the second washing unit, the second washing chamber is a static washing chamber, so that rolling drive, electric control wiring and the like are reduced, the installation difficulty and poor installation of a mechanical structure are reduced, and the structural reliability, the electric safety and the like are greatly improved. The pressure airflow auxiliary washing mode is non-mechanical force washing and is a care type washing mode, and zero abrasion and zero winding are achieved.

Specifically, in order to implement spray washing, in the water inlet design of the present embodiment, referring to fig. 5, the second washing unit includes a second washing unit water inlet pipe 805, the first door pivot portion includes an upper hinge 306, and the second washing unit water inlet pipe 805 is connected to the water outlet 704 through the front sealing door 10 and the upper hinge 306 in sequence. Therefore, the water inlet pipe in the main machine of the washing machine can be hidden and extended outwards through the first door pivot part, the appearance is not influenced, and faults such as pipeline winding and the like are avoided. And no matter the first door 30 and the second door 20 are in the opening or closing state, the communication state of the water pipe and the air pipe is not influenced.

Also, in the drain design, referring to fig. 4 to 6, the bottom of the second washing chamber is provided with a second washing unit drain 806a, the second washing unit includes a second washing unit drain 806, the first door pivot portion includes a lower hinge 307, and the second washing unit drain 806 is connected to the second washing unit drain 806a through the lower hinge 307.

Further, the second washing unit may include a microbubble generator 804 to promote agitation of the washing liquid by a microbubble washing manner, thereby improving a static washing effect. The water inlet pipe 805 of the second washing unit is a water outlet pipe of the microbubble generator 804, and injects microbubble water into the water outlet 704 to flow into the second washing chamber.

As is well known, the microbubble generator 804 (also called as a microbubble generator) is generally used to generate microbubbles having a diameter of fifty micrometers (μm) or less when bubbles are generated, and may be referred to as micro-nanobubbles, micro-bubbles, or nano-bubbles depending on the diameter range of the bubbles. The micro-bubble is generated by melting a certain gas (such as air) into water under a specific pressure by changing the physical properties of the water to form a gas-water mixed solution, and then suddenly polymerizing the gas in the water to form micro-bubble water by expanding to release the pressure. The water flow is accelerated by utilizing the abundant kinetic energy stored in the micro-bubble water and the wave of bubble explosion, thereby enhancing the washing effect. Therefore, as a general knowledge, the microbubble generator 804 and its structural components will not be described in detail herein. When the microbubble generating device 804 generates the microbubble, the water pipe line leads a large amount of microbubbles to the microbubble nozzle blowout fast to form negative pressure in the second washing chamber, the negative pressure environment can promote the production of impact rivers, thereby reach the abluent purpose of clothing.

In order to realize automatic control, the inlet pipe 802 of the microbubble generator 804 may further be provided with a water inlet valve 801 and a flow meter 803 to control the injection timing and flow rate of the microbubble water.

In the draining process, referring to fig. 5 and 6, the first washing unit includes a first washing unit drain pipe 604, a first traction valve 602, a drain pump 601 and an outer drain pipe 606, through which outer drain flows in sequence, and the second washing unit includes a second washing unit drain pipe 806, a second traction valve 603, a drain branch pipe 605 and a drain pump 601, which are arranged in sequence along the outer drain flow direction. The discharged water of the second washing unit is converged to the outer water discharge pipe 606 through the water discharge branch pipe 605, so that a compact and efficient water discharge pipe structure is formed.

Still further, an airflow assisted scrubbing system is included. Referring to fig. 4 to 6, the second washing unit includes a blower 701 and an air inlet duct 702, an air inlet 702a is provided at the bottom of the second washing chamber, and the air inlet duct 702 is connected to the air inlet 702a through the front sealing door 10 and the lower hinge 307 in sequence. The blower 701 may be an air-blowing pump for blowing air into the second washing chamber, or may be an air-sucking pump for sucking air into the second washing chamber, that is, the air-blowing or air-sucking manner is not limited to the pressure air flow.

In order to balance the air pressure in the second washing chamber, in the air exhaust design, since the washing machine includes the material box 90 generally located at the top, the material box 90 is connected with the material box water inlet pipe 50, the second washing unit includes the air exhaust pipe 703, the top of the second washing chamber is provided with the air exhaust port 703a, one end of the air exhaust pipe 703 is communicated with the air exhaust port 703a, and the other end passes through the upper hinge 306 to be connected to the material box 90.

Referring to fig. 3, a support plate 305 densely distributed with air holes is further disposed in the second washing chamber, and the support plate 305 is disposed at the bottom of the chamber and above the air inlet 702 a. The supporting plate 305 is used for placing small clothes, so that the pressure airflow from bottom to top is more conveniently distributed to flow into the second washing cavity, and washing is promoted. Specifically, the pressure air flow is dispersed into the second washing chamber from the respective air holes of the supporting plate 305, and the washing liquid in the second washing chamber is driven by the pressure air flow of the air holes, thereby achieving air bubbles, liquid agitation, vortex flow, etc., and effectively promoting the flow of the washing liquid and the tumbling of the laundry.

The washing mode of the second washing unit of the washing machine and the distribution structure of the water pipe and the air pipe in the embodiment with the attached drawings are explained above. The following describes a specific design structure of the door assembly for achieving the above-described classified washing.

Referring to fig. 2 and 3, in the door cover assembly of the present embodiment, the first door 30 has a horizontal cylindrical shape, and a second washing chamber surrounded by the first door glass 303 is formed therein. The second door 20 opens the second washing chamber in the first door glass 303 when pivoted open, and the first washing chamber, i.e., the tub chamber of the first washing tub 40, opens when the first door 30 opens. When the second door 20 is opened, small laundry may be thrown inward. When the first door 30 is opened, a large amount of laundry can be put in, which greatly facilitates the user's operation. Of course, in the present embodiment, both the second door 20 and the first door 30 are side doors, but the present invention is not limited thereto, and a downward-opening door, an upward-opening door, or the like may be selected.

Referring to fig. 2, the first door 30 is mainly composed of a first door outer ring 301 and a first door inner ring 302 attached back and forth, and a first door glass 303 projecting rearward from the first door inner ring 302, and the first door glass 303 is formed in a cylindrical cavity shape having a second washing chamber. Wherein the portions of the second washing unit water inlet pipe 805 and the second washing unit water outlet pipe 806 protruding into the door cover assembly are both between the first door outer door ring 301 and the first door inner door ring 302.

In fig. 2, in order to realize water-tight sealing and air-tight sealing, the inner peripheral edge portion of the inlet of the first washing chamber of the front sealing door 10 is provided with a first door sealing ring 304, the inner peripheral edge portion of the inlet of the second washing chamber of the first door outer door ring 301 is provided with a second door sealing ring 204, and similarly, the second door 20 includes a second door outer door ring 201, a second door inner door ring 202 and a second door glass 203; when the second door 20 and the first door 30 are both in the pivot closed state, the second door glass 203 is in sealing fit with the second door gasket 204, and the first door glass 303 is in sealing fit with the first door gasket 304.

Wherein, in order to realize the spray washing and the gas auxiliary washing, the gas port and the liquid port in the door cover component are designed as shown in fig. 4, and are not described again in conjunction with the related description.

Also in the present embodiment, the washing machine is embodied as a drum washing machine as an example, that is, the first washing unit includes a first washing tub 40 in the form of a drum, and a tub cavity of the first washing tub 40 is formed as a first washing cavity. The volume of the second washing cavity arranged in the door cover component is far smaller than that of the first washing cavity, so that the door cover component is suitable for classified washing, and the second washing cavity in the door cover component is particularly suitable for washing small and loose parts such as socks, underwear and the like, saves water, and is suitable for nursing washing and soaking.

In summary, the washing machine of the present invention realizes the classified washing of the double washing cavities, but does not enlarge the size of the washing machine, as shown in fig. 2 and fig. 3, the second washing cavity can be arranged in the door cover assembly, the self-contained cavity in the door cover assembly is effectively utilized, the space is saved, and the structure is more compact.

In the second scrubbing unit, when the microbubble scrubbing mode and the gas flow assisted scrubbing mode are introduced simultaneously, the microbubble mode promotes the generation of the water flow in the second scrubbing chamber. Further, by the high pressure air flow entering the second washing chamber through the air holes of the supporting plate 305, the micro bubble washing fluid is continuously impacted, and the tumbling of the water flow drives the clothes to be further tumbled and stirred, thereby further improving the washing effect of the clothes. The invention adopts a brand new washing mode, the second washing unit is a static washing cavity, and the poor reliability caused by mechanical movement is greatly reduced; the washing and sterilization of the clothes by adopting micro bubbles and air blowing type washing have certain obvious effect; the door cover assembly is not poor in reliability due to overweight; the door cover component is internally provided with no rotary driving unit, so that an electric appliance wire harness does not need to be assembled in the door cover component, and the mounting difficulty and poor mounting are greatly reduced; a second washing unit is designed in the impeller door for classified washing without increasing the space size; the adoption of the micro-bubble and air-blowing washing can realize the care washing, has zero abrasion and zero winding, and abandons the traditional mechanical washing.

The present invention is not limited to the details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and the technical solution of the present invention falls within the protection scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims

1. A washing machine comprises a first washing unit with a first washing cavity, and is characterized by further comprising a door cover assembly and a second washing unit with a second washing cavity, wherein the door cover assembly comprises a second door (20) and a first door (30) with an inner cavity as the second washing cavity, the first door (30) is pivotally connected to the end surface of a front sealing door (10) of the washing machine through a first door pivot part so as to open and close the first washing cavity, and the second door (20) is pivotally connected to the front end surface of the first door (30) so as to open and close the second washing cavity;

the second washing unit comprises a second washing unit water inlet pipe (805) and a second washing unit water outlet pipe (806), the second washing cavity is provided with a water outlet, the second washing unit water inlet pipe (805) is connected with the water outlet, and the second washing unit water outlet pipe (806) is connected to the bottom of the second washing cavity.

2. A washing machine according to claim 1, characterized in that the bottom of the second washing chamber is provided with a second washing unit drain (806a), the first door pivot portion comprises a lower hinge (307), and a second washing unit drain (806) extends through the lower hinge (307) into the door cover assembly and is connected to the second washing unit drain (806 a).

3. The washing machine as claimed in claim 2, wherein the first door pivot portion includes an upper hinge (306), and the second washing unit water inlet pipe (805) protrudes into the door assembly through the upper hinge (306) and is connected to the water outlet (704).

4. The washing machine as claimed in claim 3, wherein the first door (30) comprises a first door outer rim (301) and a first door inner rim (302) attached front to back, and a first door glass (303) protruding rearward from the first door inner rim (302), the first door glass (303) forming the second washing chamber;

wherein the parts of the second washing unit water inlet pipe (805) and the second washing unit water outlet pipe (806) extending into the door cover assembly are clamped between the first door outer door ring (301) and the first door inner door ring (302).

5. The washing machine according to claim 4, characterized in that the inner peripheral edge part of the front door (10) at the inlet of the first washing chamber is provided with a first door sealing ring (304), and the inner peripheral edge part of the first door outer door ring (301) at the inlet of the second washing chamber is provided with a second door sealing ring (204); and

the second door (20) comprises a second door outer door ring (201) and a second door inner door ring (202) which are connected in a front-back mode, and second door glass (203) which extends backwards from the second door inner door ring (202);

when the second door (20) and the first door (30) are both in a pivoting closed state, the peripheral wall of the second door glass (203) is in sealing fit with the second door sealing ring (204), and the peripheral wall of the first door glass (303) is in sealing fit with the first door sealing ring (304).

6. A washing machine according to claim 3, characterized in that the second washing unit comprises a micro-bubble generating device (804), and the second washing unit water inlet pipe (805) is a water outlet pipe of the micro-bubble generating device (804).

7. A washing machine according to claim 6, characterized in that a water inlet valve (801) and a flow meter (803) are provided in the water inlet pipe (802) of the microbubble generation device (804).

8. A washing machine according to claim 3, characterized in that the first washing unit comprises a first washing unit drain pipe (604), a first traction valve (602), a drain pump (601) and an outer drain pipe (606) through which outer drain flows in sequence, and the second washing unit comprises the second washing unit drain pipe (806), a second traction valve (603), a drain branch pipe (605) and the drain pump (601) which are arranged in sequence in the outer drain flow direction.

9. A washing machine as claimed in any one of claims 3 to 8, characterized in that the second washing unit comprises a fan (701) and an air inlet pipe (702), the bottom of the second washing chamber is provided with an air inlet (702a), and the air inlet pipe (702) is connected to the air inlet (702a) through the front sealing door (10) and the lower hinge (307) in sequence.

10. The washing machine as claimed in claim 9, wherein the washing machine comprises a magazine (90), the second washing unit comprises an exhaust duct (703), an exhaust port (703a) is provided at a top of the second washing chamber, one end of the exhaust duct (703) communicates with the exhaust port (703a), and the other end is connected to the magazine (90) through the upper hinge (306).

11. The washing machine as claimed in claim 9, wherein a support plate (305) densely distributed with air holes is provided in the second washing chamber, and the support plate (305) is disposed at the bottom of the chamber above the air inlet (702 a).