CN113106695A

CN113106695A - Drawer type washing machine

Info

Publication number: CN113106695A
Application number: CN202010021696.1A
Authority: CN
Inventors: 公涛; 程宝珍; 孙广彬; 王玲臣
Original assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2021-07-13

Abstract

The invention discloses a drawer type washing machine, which comprises a machine body, wherein one side of the machine body is provided with an opening; a drawer having a washing chamber therein, the drawer being capable of being drawn out of/pushed into the body through an opening of the body; the drawing device is arranged between the machine body and the drawer; further comprising: and the in-place detection device is arranged on the drawing device and is used for detecting whether the drawer is drawn out or pushed in place. The drawer in-place detection device is arranged, so that the drawer of the washing machine can be accurately controlled to be pulled out in place, the condition that the drawer is separated from the machine body is avoided, the drawer is pulled out/pushed in fully automatically, time and labor are saved, and the automation degree is high.

Description

Drawer type washing machine

Technical Field

The invention belongs to the field of washing machines, and particularly relates to a drawer type washing machine.

Background

The existing drawer type washing machine is generally opened and closed in a manual push-pull mode, when the amount of washed clothes is large, the weight of a drawer is increased, and a user wastes time and labor in the pulling process.

Chinese patent application No. 01118897.9 discloses a drawer type washing machine, which includes: a housing with one side open; the box body can be drawn out forwards through the opening side of the shell and is positioned in the shell; a washing tub located in the cabinet for washing laundry; and a drawing device arranged between the shell and the box body and used for automatically drawing out the box body. The washing machine solves the problem of automatic extraction of the drawer type washing machine, and avoids the time and labor waste when a user extracts an overweight drawer.

However, as the living standard of people is improved, the requirement on the automation level of household appliances is higher and higher, the washing machine can realize the automatic drawing and pushing of the drawer through gear transmission, but the opening of the drawing and pushing still needs to be controlled manually by a user, meanwhile, the drawing process and the washing process of the washing machine are still two independent control programs, and the user also needs to manually open the washing process. Modern users expect a full-automatic washing machine which can automatically complete the extraction, propulsion and washing of the washing machine after one-key opening, and the automation degree of the washing machine obviously cannot meet the requirements of modern users.

The present invention has been made in view of this situation.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a drawer type washing machine.

In order to solve the technical problems, the invention adopts the technical scheme that:

a drawer type washing machine comprises

A body having an opening at one side;

a drawer having a washing chamber therein, the drawer being capable of being drawn out of/pushed into the body through an opening of the body;

the drawing device is arranged between the machine body and the drawer;

it is characterized by also comprising:

and the in-place detection device is arranged on the drawing device and is used for detecting whether the drawer is drawn out or pushed in place.

Furthermore, a pull-out limiting part is arranged on the pull-out device;

the in-place detection device comprises a first position detection device or a first limit switch, and the first position detection device or the first limit switch is arranged on the pull-out limit part.

Furthermore, a pushing limiting part is also arranged on the drawing device;

the in-place detection device comprises a second position detection device or a second limit switch, and the second position detection device or the second limit switch is arranged on the propulsion limit part.

Furthermore, the drawing device comprises a ball, an upper sliding rail and an upper fixed rail, the upper sliding rail and the upper fixed rail are mutually matched through the ball in a sliding way, the upper sliding rail is fixedly connected with the drawer, and the upper fixed rail is fixedly connected with the machine body;

the ball bearing device also comprises a ball bearing frame which is arranged between the upper slide rail and the upper fixed rail and can freely slide, wherein a limiting hole is formed in the ball bearing frame, and the ball bearing can freely rotate in the limiting hole;

the pull-out limiting part comprises an upper slide rail pull-out limiting structure arranged on the upper slide rail and an upper fixed rail pull-out limiting structure arranged on the upper fixed rail, the first position detection device comprises a first detection terminal and a first detected terminal, the first detection terminal is arranged on the upper fixed rail pull-out limiting structure, and the first detected terminal is arranged on the upper slide rail pull-out limiting structure;

or the first limit switch is arranged on the upper slide rail pull-out limit structure or the upper fixed rail pull-out limit structure.

Furthermore, the pushing limiting part comprises an upper slide rail pushing limiting structure arranged on the upper slide rail and an upper fixed rail pushing limiting structure arranged on the upper fixed rail, the second position detection device comprises a second detection terminal and a second detected terminal, the second detection terminal is arranged on the upper fixed rail pushing limiting structure, and the second detected terminal is arranged on the upper slide rail pushing limiting structure;

or the second limit switch is arranged on the upper slide rail propelling limit structure or the upper fixed rail propelling limit structure.

Furthermore, the upper sliding rail pulling-out limiting structure is a first limiting column arranged at one end of the upper sliding rail, which is far away from the opening of the machine body, the upper fixed rail pulling-out limiting structure is a first limiting groove arranged at one end of the upper fixed rail, which is close to the opening of the machine body, the first limiting column is matched with the first limiting groove in position, and the first limiting column and the first limiting groove are in clamping fit to form the pulling-out limiting part;

the first detection terminal is arranged on the first limiting groove, the first detected terminal is arranged on the first limiting column, and the positions of the first detected terminal and the first limiting column are corresponding;

or the first limit switch is arranged on the first limit column or the first limit groove.

Furthermore, the upper sliding rail propelling limit structure is a second limit groove arranged at one end of the upper sliding rail, which is far away from the opening of the machine body, the upper fixed rail propelling limit structure is a second limit column arranged at one end of the upper fixed rail, which is far away from the opening of the machine body, the second limit column is matched with the second limit groove in position, and the second limit column and the second limit groove are in clamping fit to form the propelling limit part;

the second detection terminal is arranged on the second limiting column, and the second detected terminal is arranged on the second limiting groove and corresponds to the second limiting groove in position;

or the second limit switch is arranged on the second limit column or the second limit groove.

Furthermore, the upper sliding rail pulling-out limiting structure is a limiting column arranged at one end of the upper sliding rail, which is far away from the opening of the machine body, the upper fixed rail pulling-out limiting structure is a first limiting groove arranged at one end of the upper fixed rail, which is close to the opening of the machine body, the limiting column is matched with the first limiting groove in position, and the limiting column and the first limiting groove are in clamping fit to form the pulling-out limiting part;

the first detection terminal is arranged on the first limiting groove, the first detected terminal is arranged on the limiting column, and the positions of the first detected terminal and the limiting column are corresponding;

or the first limit switch is arranged on the first limit groove or the first limit column.

Furthermore, the upper sliding rail propelling and limiting structure is the limiting column, the upper fixed rail propelling and limiting structure is a second limiting groove arranged at one end of the upper fixed rail, which is far away from the opening of the machine body, the second limiting groove is matched with the limiting column in position, and the second limiting groove and the limiting column are clamped and matched to form the propelling and limiting part;

the second detection terminal is arranged on the second limiting groove, the second detected terminal is arranged on the limiting column, and the positions of the second detected terminal and the limiting column are corresponding;

or the second limit switch is arranged on the second limit groove or the second limit column.

Furthermore, a first sliding groove is formed in the upper sliding rail, a second sliding groove is formed in the upper fixed rail, the first sliding groove and the second sliding groove are corresponding in position, the ball is arranged in the first sliding groove and the second sliding groove, and the ball frame is arranged between the first sliding groove and the second sliding groove;

one end of the first sliding chute, which is far away from the opening of the machine body, is blocked to form a rear limiting surface, one end of the second sliding chute, which is close to the opening of the machine body, is blocked to form a front limiting surface, the rear limiting surface is a pull-out limiting structure of the upper sliding rail, the front limiting surface is a pull-out limiting structure of the upper fixed rail, and the pull-out limiting surface and the front limiting surface form a pull-out limiting part and are respectively matched with one side of the ball at the same time to finish pull-out limiting;

the first limit switch is arranged on the front limit surface or the rear limit surface;

or the first detection terminal is arranged at the front limiting surface, and the first detected terminal is arranged on the ball frame and corresponds to the position of the first detection terminal.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.

1) The in-place detection device is arranged, so that the drawer of the washing machine can be accurately controlled to be pulled out in place, and the condition that the drawer is pulled out of the machine body is avoided;

2) the full-automatic drawer pulling-out/pushing-in device is provided with the in-place detection device and the driving part, so that the full-automatic drawer pulling-out/pushing-in device is time-saving and labor-saving, and has high automation degree;

3) the control method of the drawer type washing machine provided by the invention realizes the one-key starting function of the drawer type washing machine, the user can realize the automation of the pulling-out/pushing-in and washing processes of the washing machine only by touching the starting button, and the user only needs to put in or take out clothes midway, thereby saving time and labor. Meanwhile, the drawer type washing machine can be also provided with a wireless communication module which is in wireless communication with a user mobile terminal, so that the limitation of the position of a user on washing is eliminated, the user can control the working process of the washing machine outdoors, and the user experience is improved.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a front view schematically illustrating a drawer type washing machine according to the present invention;

FIG. 2 is an enlarged view of the structure at E in FIG. 1 according to the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

FIG. 4 is an enlarged view of the structure at F in FIG. 3 according to the present invention;

FIG. 5 is an enlarged view of the structure of FIG. 3 at G in accordance with the present invention;

FIG. 6 is a schematic cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention;

FIG. 7 is an enlarged view of the structure of FIG. 6 at H according to the present invention;

FIG. 8 is an enlarged view of the structure of FIG. 6 at I according to the present invention;

FIG. 9 is an enlarged view of the structure of FIG. 6 at J in accordance with the present invention;

FIG. 10 is an enlarged view of the ball-on-upper-rail contact position of the drawer of the present invention when it is pulled out of position;

FIG. 11 is a schematic cross-sectional view of the invention taken at section C-C of FIG. 1;

FIG. 12 is an enlarged schematic view of the structure of another embodiment of the present invention at E in FIG. 1;

FIG. 13 is an enlarged schematic view of the structure of another embodiment of the present invention at F in FIG. 3;

FIG. 14 is an enlarged schematic view of the structure of another embodiment of the present invention at H in FIG. 6;

FIG. 15 is a control schematic of the drawer pull-out process of the present invention;

FIG. 16 is a control schematic of the drawer advancement process of the present invention;

fig. 17 is a schematic view of an operation process of the washing machine of the present invention.

In the figure: 100. a body; 200. a drawer; 210. a washing chamber; 300. a drawing device; 310. upper orbit determination; 311. an upper slide rail; 312. a rear limiting surface; 313. a front limiting surface; 314. a first chute; 315. a second chute; 320. lower orbit determination; 321. a lower slide rail; 330. a drive motor; 331. a coupling; 332. a lead screw; 333. a base; 340. a ball rack; 350. a ball bearing; 360. the upper fixed rail is pulled out of the limit structure; 361. the upper sliding rail is pulled out of the limiting structure; 370. an upper fixed rail propulsion limit structure; 371. the upper sliding rail pushes the limit structure; 400. and an in-place detection device.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A drawer type washing machine includes a body 100 having an opening at one side, as shown in FIG. 3, the front side of the body 100 is the opening side; a drawer 200 having a washing chamber 210 therein, the drawer 200 being drawn out/pushed into the body 100 through an opening of the body 100; a drawing device 300 disposed between the body 100 and the drawer 200 for facilitating the drawer 200 to draw out/push in the body 100. The control system of the washing machine can automatically control the drawing device 300 to draw out/push in the drawer 200, so that the time and labor for drawing the drawer 200 by a user when the drawer 200 is too heavy can be effectively avoided, and the automation level of the washing machine is improved.

The drawing device 300 includes an upper fixed rail 310 and an upper fixed rail 311, the upper fixed rail 311 corresponds to the upper fixed rail 310, as shown in fig. 2, the upper fixed rail 311 is fixedly connected with the drawer 200, the upper fixed rail 310 is fixedly connected with the machine body 100, and a ball 350 is disposed between the upper fixed rail 311 and the upper fixed rail 310, and is slidably connected through the ball 350 or a pulley. As shown in fig. 1, the drawing device 300 further includes a lower fixed rail 320 and a lower sliding rail 321, the positions of the lower fixed rail 320 and the lower sliding rail 321 correspond to each other, the lower fixed rail 320 is fixedly connected to the body 100, the lower sliding rail 321 is fixedly connected to the drawer 320, and the lower fixed rail 320 is slidably connected to the lower sliding rail 321.

In this embodiment, the lower fixed rail 320 is a steel rail, and the shape of the lower sliding rail 321 matches the shape of the upper rail of the lower fixed rail 320, and the two are connected in a sliding manner. In one scheme, the lower fixed rail 320 and the lower sliding rail 321 are in sliding connection by adding guide rail oil. In another alternative, a pulley or a ball is disposed between the lower fixed rail 320 and the lower sliding rail 321, and the two are connected in a sliding manner.

As shown in fig. 10, the drawing device 300 includes a driving motor 330, a coupling 331, a lead screw 332, and a base 333. The driving motor 330 is fixedly connected with the machine body 100, the lead screw 332 is connected with the driving motor 330 through the coupler 331, the length of the lead screw 332 is greater than or equal to the maximum stroke of the drawer 200, the base 333 is in threaded connection with the lead screw 332, linear motion is carried out on the lead screw 332 along the length direction of the lead screw, and the top of the base 333 is fixedly connected with the bottom of the drawer 200. When the driving motor 330 drives the screw 332 to rotate, the base disposed on the screw 332 starts to move linearly, thereby completing the linear movement of the drawer 200 and realizing the pulling-out or pushing-in motion of the drawer 200.

As shown in fig. 1, there are two sets of upper slide rails 311 and upper fixed rails 310, which are respectively disposed at two sides of the top of the drawer 200, and are disposed parallel to the drawing direction of the drawer 200, and the length of the two sets of upper slide rails is slightly greater than the maximum drawing stroke of the drawer 200. Two groups of lower fixed rails 320 and lower sliding rails 321 are respectively arranged at two sides of the bottom of the drawer 200, are arranged in parallel with the drawing direction of the drawer 200, and have a length slightly larger than the maximum drawing stroke of the drawer 200. Go up the setting of slide rail, last fixed rail, lower slide rail and lower fixed rail, played good support and limiting displacement to drawer 200 for drawer 200 all obtains good injecing in the direction about, from top to bottom in pull out/propulsion process, can not appear violent rocking, and stability strengthens greatly. Meanwhile, since the drawer is well supported, only one driving motor 330, one coupler 331, one lead screw 332 and one base 333 are required, thereby reducing the manufacturing cost of the washing machine. The driving motor 330, the coupling 331, the screw 332 and the base 333 in this embodiment are all disposed at the middle position of the bottom of the drawer 200, so that the acting force of the base 333 on the drawer 200 is uniformly distributed, and the pulling-out/pushing-in process is smoother.

In order to further improve the automation level of the washing machine and enable the washing machine to automatically stop the pulling/pushing actions when the washing machine is pulled out to the right position/pushed into the right position, the washing machine is also provided with a right position detection device. The seating detecting means 400 is provided on the drawing device 300 to detect whether the drawer 200 is drawn out/pushed in to the seating position. The in-place detection device 400 is electrically connected with a control system of the washing machine, and transmits detection information to the control system of the washing machine in real time, and the control system of the washing machine judges whether the drawer 200 is pulled out/pushed in place according to feedback information of the in-place detection device 400, so as to control the driving motor 330 in the pulling device 300 to stop running.

The full-automatic process can reduce the physical power consumed by the user to the maximum extent, and also avoids the adverse effect on the subsequent washing process due to the fact that the pulling/pushing of the washing machine is not in place caused by the subjective factors of the user.

The pull-out device 300 is provided with a pull-out limiting part, the in-place detection device 400 comprises a first position detection device or a first limit switch, and the first position detection device or the first limit switch is arranged on the pull-out limiting part. When the control system of the washing machine judges that the drawer 200 has been pulled out to the position according to the feedback information of the in-position detecting device 400, the driving motor 330 is controlled to stop operating, and the drawer 200 is maintained at the pulled-out position. The drawer 200 is simultaneously subjected to the combined action of the pull-out limiting portion, the lower slide rail 321, the lower fixed rail 320 and the base 333, so that the drawer is not inclined at the pull-out position.

The drawing device 300 is further provided with a pushing limiting part, the in-place detection device 400 comprises a second position detection device or a second limiting switch, and the second position detection device or the second limiting switch is arranged on the pushing limiting part. When the control system of the washing machine judges that the drawer 200 has been pushed in place according to the feedback information of the in-place detecting device 400, the driving motor 330 is controlled to stop operation, and the drawer 200 is maintained at the pushed-in position.

As shown in fig. 2 and 9, the drawing device 300 includes a ball 350, an upper slide rail 311 and an upper fixed rail 310, the upper slide rail 311 and the upper fixed rail 310 are slidably engaged with each other through the ball 350, the upper slide rail 311 is fixedly connected to the drawer 200, and the upper fixed rail 310 is fixedly connected to the body 100. The washing machine further comprises a ball frame 340 which is arranged between the upper sliding rail 311 and the upper fixed rail 310 and can slide freely, a limiting hole is formed in the ball frame 340, and the ball 350 can rotate freely in the limiting hole. In this embodiment, the arrangement of the ball frame 340 prevents the balls 350 from colliding with each other in the rolling process, so that the friction force is increased, the drawing of the drawer 200 is sluggish and not smooth, meanwhile, the wear of the balls is avoided, and the service life of the product is prolonged.

Example one

As shown in fig. 1 to 8, the pull-out limiting portion includes an upper rail pull-out limiting structure 361 disposed on the upper rail 311, and an upper rail pull-out limiting structure 360 disposed on the upper rail 310, the first position detecting device 400 includes a first detecting terminal and a first detected terminal, the first detecting terminal is disposed on the upper rail pull-out limiting structure 360 (as shown in fig. 5), and the first detected terminal is disposed on the upper rail pull-out limiting structure 361 (as shown in fig. 4). In another embodiment, the first detecting terminal is disposed on the upper rail pull-out limiting structure 361 (as shown in fig. 4), and the first detecting terminal is disposed on the upper rail pull-out limiting structure 360 (as shown in fig. 5).

Preferably, the first detecting terminal is fixed, disposed on the upper fixed rail pull-out limiting structure 360, and corresponds to the position of the first detected terminal on the upper fixed rail pull-out limiting structure 361. The first detected terminal slides along with the drawer 200 in the pulling/pushing process of the drawer 200, the position between the first detected terminal and the first detected terminal changes along with the sliding of the drawer 200, the generated signal value also changes, and the control system of the washing machine judges whether the drawer 200 is pulled out in place or not according to the received signal value.

Or, in another scheme, since the first detection terminal and the first detected terminal feed back a position signal therebetween, the setting positions of the first detection terminal and the first detected terminal are not limited to the upper fixed rail pull-out limiting structure 360 and the upper sliding rail pull-out limiting structure 361, and may be respectively set close to the upper fixed rail pull-out limiting structure 360 and the upper sliding rail pull-out limiting structure 361 as long as the signal therebetween can satisfy the position determination requirement of the washing machine control system for the drawer 200. For example, fig. 4 shows the arrangement of the second detection terminal 400 and the second detected terminal 400 on the upper slide rail advancing stopper 371 and the upper rail fixing advancing stopper 370.

Alternatively, in another embodiment, the first limit switch 400 is disposed on the upper rail pull-out limit structure 361 or the upper rail pull-out limit structure 360 (as shown in fig. 4 or fig. 5). The first limit switch 400 has two states of open/close, when the upper rail pull-out limit structure 361 contacts the upper fixed rail pull-out limit structure 360, the state of the first limit switch 400 changes, and the control system of the washing machine judges whether the drawer 200 is pulled out in place according to the received state change signal.

As shown in fig. 4, the pushing limiting part includes an upper slide pushing limiting structure 371 disposed on the upper slide 311, and an upper fixed rail pushing limiting structure 370 disposed on the upper fixed rail 310, the second position detecting device includes a second detecting terminal and a second detected terminal, the second detecting terminal is disposed on the upper fixed rail pushing limiting structure 370, the second detected terminal is disposed on the upper slide pushing limiting structure 371, and the arrangement manner is the same as the first detecting terminal and the first detected terminal, as long as the signal therebetween can satisfy the position determination requirement of the washing machine control system for the drawer 200.

Alternatively, in another embodiment, the second limit switch 400 is disposed on the upper sliding rail pushing limit structure 371 or the upper fixed rail pushing limit structure 370. The second limit switch 400 has two states of open/close, and needs to be disposed at a position where the upper slide rail propulsion limit structure 371 and the upper fixed rail propulsion limit structure 370 contact, and the state of the second limit switch is triggered to change by the contact between the two, and the control system of the washing machine judges whether the drawer 200 is propelled in place or not according to the received state change signal.

The specific arrangement mode of the pull-out limiting part and the push-in limiting part is as follows:

as shown in fig. 1 to 9, the upper slide rail 311 is a slide groove with an upward opening and has two vertical side walls opposite to each other and a bottom wall fixedly connected to the drawer 200, and the upper fixed rail 310 is a slide groove with a downward opening and has two vertical side walls opposite to each other and a top wall fixedly connected to the machine body 100. The inner wall surfaces of the two vertical side walls of the upper slide rail 311 are provided with first slide grooves 314, the outer wall surfaces of the two vertical side walls of the upper fixed rail 310 are provided with second slide grooves 315, the positions of the first slide grooves 314 and the positions of the second slide grooves 315 correspond, and the balls 350 slide between the first slide grooves 314 and the second slide grooves 315, so that the sliding connection between the upper slide rail 311 and the upper fixed rail 310 is realized. The ball frame 340 is disposed between the first sliding groove 314 and the second sliding groove 315, and can freely slide along with the rolling of the balls 350. In order to prevent the balls 340 from separating from the first sliding slot 314 and the second sliding slot 315 during the drawing process, in this embodiment, a rear limiting surface 312 is formed at one end of the first sliding slot 314 away from the opening of the machine body 100 in a sealing manner, and a front limiting surface 313 is formed at one end of the second sliding slot 315 close to the opening of the machine body in a sealing manner, when the drawer 200 is drawn to a position, the front limiting surface 313 blocks the front end surface of the ball 350, and the rear limiting surface 312 blocks the rear end surface of the ball 350, so that the ball cannot separate from the range of the first sliding slot 314 and the second sliding slot 315, which is particularly significant when the drawer 200 is in the drawn position.

The upper slide rail pull-out limiting structure 361 is a first limiting column (as shown in fig. 4) arranged at one end of the upper slide rail 311 far away from the opening of the machine body 100, the upper fixed rail pull-out limiting structure 360 is a first limiting groove (as shown in fig. 5) arranged at one end of the upper fixed rail 310 close to the opening of the machine body 100, and the first limiting column is matched with the first limiting groove in position. When the drawer 200 is in the pull-out position, the first position-limiting column 361 is inserted into the first position-limiting groove 360 to form the pull-out position-limiting portion. The upper fixed rail 310 is provided with a boss structure at an end close to the opening of the machine body 100, and the first limit groove 360 is disposed at an inner side of the boss structure far from the opening of the machine body 100.

Preferably, the first detecting terminal is fixed, disposed on the first limiting groove 360, and corresponds to the position of the first detected terminal on the first limiting column 361. The first detected terminal slides along with the drawer 200 in the pulling/pushing process of the drawer 200, the position between the first detected terminal and the first detected terminal changes along with the sliding of the drawer 200, the generated signal value also changes, and the control system of the washing machine judges whether the drawer 200 is pulled out in place or not according to the received signal value.

Or, in another scheme, since the first detection terminal and the first detected terminal feed back a position signal therebetween, the arrangement positions of the first detection terminal and the first detected terminal are not limited to the first limit groove 360 and the first limit column 361, and may be respectively arranged near the first limit groove 360 and the first limit column 361 as long as the signal therebetween can meet the position determination requirement of the washing machine control system for the drawer 200. For example, fig. 4 shows the arrangement of the second detection terminal 400 and the second detected terminal 400 on the upper slide rail advancing stopper 371 and the upper rail fixing advancing stopper 370.

Alternatively, in another embodiment, the first limit switch 400 is disposed on the first limit post 361 or the first limit groove 360 (as shown in fig. 4 or fig. 5). The first limit switch 400 has two states of open/close, when the first limit post 361 contacts with the first limit groove 360, the state of the first limit switch 400 changes, and the control system of the washing machine judges whether the drawer 200 is pulled out in place according to the received state change signal.

As shown in fig. 4 and 7, the upper sliding rail pushing limiting structure 371 is a second limiting groove disposed at one end of the upper sliding rail far away from the opening of the machine body 100, the upper rail pushing limiting structure 370 is a second limiting post disposed at one end of the upper rail far away from the opening of the machine body 100, and the second limiting post is matched with the second limiting groove in position. When the drawer 200 is in the pushing position, the second position-limiting pillar 370 is clipped into the second position-limiting groove 371 to form the pushing position-limiting part. The bottom wall of the upper slide rail 311 is provided with a boss structure at one end far away from the opening of the machine body 100, and the second limit groove 371 is arranged at one side of the boss structure far away from the opening of the machine body 100. Alternatively, the second limiting groove 371 is a groove disposed on the bottom wall of the upper sliding rail 311, and an opening of the groove is located on an end surface (not shown) of the bottom wall far from the opening of the machine body 100. The second position detecting device includes a second detecting terminal and a second terminal to be detected, the second detecting terminal is disposed on the second position-limiting pillar 370, and the second terminal to be detected is disposed on the second position-limiting groove 371 (as shown in fig. 4). In another embodiment, the second detection terminal and the second detected terminal are arranged in the same manner as the first detection terminal and the first detected terminal (as shown in fig. 4 and 5), as long as the signal therebetween can satisfy the position determination requirement of the drawer 200 by the washing machine control system.

Alternatively, in another embodiment, the second limit switch 400 is disposed on the second limit groove 371 or the second limit column 370. The second limit switch 400 has two states of open/close, and is required to be disposed at a position where the second limit groove 371 and the second limit post 370 contact, and the state of the second limit switch is triggered to change by the contact between the second limit groove 371 and the second limit post 370, and the control system of the washing machine judges whether the drawer 200 is pushed in place or not according to the received state change signal.

The first position detection device/the second position detection device is an electromagnetic position sensor and comprises a permanent magnet rotor and an electromagnetic sensor, the permanent magnet rotor is a first detected terminal/a second detected terminal, and the electromagnetic sensor is a first detected terminal/a second detected terminal; or the photoelectric position sensor comprises a light shielding plate and a photoelectric sensor, wherein the light shielding plate is a first detected terminal/a second detected terminal, and the photoelectric sensor is a first detection terminal/a second detection terminal; or the differential voltage type sensor comprises an armature and a differential voltage sensor, wherein the armature is a first detected terminal/a second detected terminal, and the differential voltage sensor is a first detected terminal/a second detected terminal; or the eddy current sensor comprises a metal plate and an eddy current sensor, wherein the metal plate is a first detected terminal/a second detected terminal, and the eddy current sensor is a first detected terminal/a second detected terminal; or the capacitive sensor comprises a movable electrode, a fixed electrode and a capacitive sensor, wherein the movable electrode is a first detected terminal/a second detected terminal, and the fixed electrode and the capacitive sensor are the first detected terminal/the second detected terminal; or the reed pipe type sensor comprises a magnet and a reed pipe sensor, wherein the magnet is a first detected terminal/a second detected terminal, and the reed pipe sensor is a first detected terminal/a second detected terminal; or the Hall sensor comprises a permanent magnet and a Hall sensor, the permanent magnet is a first detected terminal/a second detected terminal, and the Hall sensor is a first detected terminal/a second detected terminal.

Example two

In the present embodiment, another arrangement of the in-place detection device is described, and the main difference between the present embodiment and the first embodiment is that the position of the pull-out limiting portion is different, and the first limiting column and the first limiting groove are not added, and the existing structure is directly utilized to perform limiting control on the pull-out of the drawer 200, and the arrangement of the push-in limiting portion is the same as that in the first embodiment.

As shown in fig. 1 to 9, the upper slide rail 311 is a slide groove with an upward opening and has two vertical side walls opposite to each other and a bottom wall fixedly connected to the drawer 200, and the upper fixed rail 310 is a slide groove with a downward opening and has two vertical side walls opposite to each other and a top wall fixedly connected to the machine body 100. The inner wall surfaces of the two vertical side walls of the upper slide rail 311 are provided with first slide grooves 314, the outer wall surfaces of the two vertical side walls of the upper fixed rail 310 are provided with second slide grooves 315, the positions of the first slide grooves 314 and the positions of the second slide grooves 315 correspond, and the balls 350 slide between the first slide grooves 314 and the second slide grooves 315, so that the sliding connection between the upper slide rail 311 and the upper fixed rail 310 is realized. The ball frame 340 is disposed between the first sliding groove 314 and the second sliding groove 315, and can freely slide along with the rolling of the balls 350. In order to prevent the balls 340 from separating from the first sliding slot 314 and the second sliding slot 315 during the drawing process, in this embodiment, a rear limiting surface 312 is formed at one end of the first sliding slot 314 away from the opening of the machine body 100 in a sealing manner, and a front limiting surface 313 is formed at one end of the second sliding slot 315 close to the opening of the machine body 100 in a sealing manner, when the drawer 200 is drawn in place, the front limiting surface 312 blocks a front end surface of the balls 350, and the rear limiting surface 312 blocks a rear end surface of the balls 350, so that the balls cannot separate from the range of the first sliding slot 314 and the second sliding slot 315, which is particularly significant when the drawer 200 is in the drawn-out position.

The pull-out limiting portion includes an upper slide rail pull-out limiting structure 371 and an upper fixed rail pull-out limiting structure 370, in this embodiment, the upper slide rail pull-out limiting structure 371 is a rear limiting surface 312, and the upper fixed rail pull-out limiting structure 370 is a front limiting surface 313. When the drawer 200 is in the pull-out position, the rear limiting surface 312 is engaged with the rear end surface of the ball 350, and the front limiting surface 313 is engaged with the front end surface of the ball 350. In this embodiment, a plurality of balls 350 are provided, a front end surface of the ball 350 closest to the opening end of the body 100 is clamped with the front limiting surface 313 (as shown in fig. 10), and a rear end surface of the ball 350 farthest from the opening end of the body 100 is clamped with the rear limiting surface 312 (not shown), so as to realize the pull-out limiting of the drawer 200.

When the position detecting device is the first position detecting device, the first position detecting device includes a first detecting terminal and a first detected terminal, and in order to ensure that the signal transmission between the first detecting terminal and the first detected terminal is not influenced by the obstruction of the obstacle, it is preferable that the first detecting terminal is disposed on the upper rail 310 near the front limiting surface 313 (as shown in fig. 10), and the first detected terminal is disposed on the ball rack 340, and when the drawer 200 is pulled out of position, the positions of the two terminals are opposite. The first detected terminal slides along with the ball frame 340 in the drawing/pushing process of the drawer 200, the positions of the first detected terminal and the first detected terminal change along with the sliding of the ball frame 340, the generated signal value also changes, and the control system of the washing machine judges whether the drawer 200 is drawn in place or not according to the received signal value.

Alternatively, in another embodiment, the first detection terminal is disposed on the upper slide rail 311 near the rear limiting surface 313, and the first detection terminal is disposed on the ball rack 340, and when the drawer 200 is pulled out to the right position, the two terminals are opposite to each other. The first detected terminal slides along with the ball frame 340 in the process of pulling out/pushing in the drawer 200, the position between the first detected terminal and the first detected terminal changes along with the sliding of the ball frame 340, the generated signal value also changes, and the control system of the washing machine judges whether the drawer 200 is pulled out in place or not according to the received signal value.

When the position detecting device is a first limit switch, the first limit switch has an open/close state, and a certain acting force needs to be applied to the first limit switch to trigger the state of the first limit switch to change, so that the first limit switch is arranged on the front limit surface 313 or the rear limit surface 312. When the drawer 200 is pulled out to the right position, the interaction among the rear limiting surface 312, the rolling ball 350 and the front limiting surface 313 triggers the state of the first limiting switch to be converted. The control system of the washing machine judges whether the drawer 200 is pulled out in place according to the received state change signal.

Alternatively, in another embodiment, the second limit switch 400 is disposed on the second limit groove 371 or the second limit column 370. The second limit switch 400 has two states of open/close, and is required to be disposed at a position where the second limit groove 371 or the second limit post 370 contacts, and the state of the second limit switch is triggered to change by the contact of the second limit groove 371 or the second limit post 370, and the control system of the washing machine judges whether the drawer 200 is pushed in place or not according to the received state change.

EXAMPLE III

The present embodiment introduces another arrangement manner of the in-place detection device, and the main difference between the present embodiment and the first embodiment is: the limiting columns do not adopt the first limiting column and the second limiting column, and the limiting columns which are pulled out in place and pushed in place are of the same structure and are arranged on the upper fixed rail 310 or the upper sliding rail 311.

The present embodiment is described with the case where the limiting column is disposed on the upper slide rail 311.

With reference to fig. 1, fig. 3, fig. 5, fig. 6, fig. 8, fig. 9, fig. 11 to fig. 14, the upper sliding rail pull-out limiting structure 361 is a limiting post (as shown in fig. 12) disposed at one end of the upper sliding rail 311 away from the opening of the machine body 100, the upper fixed rail pull-out limiting structure 360 is a first limiting groove (as shown in fig. 5) disposed at one end of the upper fixed rail 310 close to the opening of the machine body 100, and the position of the limiting post 361 is matched with the position of the first limiting groove 360. When the drawer 200 is in the pull-out position, the position-limiting column 361 is inserted into the first position-limiting groove 360 to form the pull-out position-limiting portion. The upper fixed rail 310 is provided with a boss structure at an end close to the opening of the machine body 100, and the first limit groove 360 is disposed at an inner side of the boss structure far from the opening of the machine body 100.

Preferably, the first detecting terminal is fixed, disposed on the first limiting groove 360, and corresponds to the position of the first detected terminal on the limiting column 361. The position of the first detected terminal changes during the drawing/pushing process of the drawer 200 and the position of the first detected terminal changes, the generated signal value changes accordingly, and the control system of the washing machine judges whether the drawer 200 is drawn out in place or not according to the received signal value.

Or, in another scheme, since the first detection terminal and the first detected terminal feed back a position signal therebetween, the arrangement positions of the first detection terminal and the first detected terminal are not limited to the first limit groove 360 and the limit column 361, and may be respectively arranged near the first limit groove 360 and the limit column 361, as long as the signal therebetween can satisfy the position determination requirement of the washing machine control system for the drawer 200. For example, fig. 4 shows the arrangement of the second detection terminal 400 and the second detected terminal 400 on the upper slide rail advancing stopper 371 and the upper rail fixing advancing stopper 370.

Alternatively, in another embodiment, the first limit switch 400 is disposed on the limit column 361 or the first limit groove 360 (as shown in fig. 13 or fig. 5). The first limit switch 400 has two states of open/close, when the first limit post 361 contacts with the first limit groove 360, the state of the first limit switch 400 changes, and the control system of the washing machine judges whether the drawer 200 is pulled out in place according to the received state change signal.

As shown in fig. 13 and 14, the upper rail pushing limiting structure 371 is the limiting post 361, the upper rail pushing limiting structure 370 is a second limiting groove disposed at an end of the upper rail far from the opening of the machine body 100, and the limiting post 361,371 is matched with the second limiting groove 370. When the drawer 200 is in the push position, the stopper 361,371 snaps into the second stopper groove 370 to form the push stopper. A boss structure is disposed on the top wall of the upper fixed rail 310 at an end far away from the opening of the machine body 100, and the second limiting groove 370 is disposed on a side of the boss structure close to the opening of the machine body 100.

The second position detecting device includes a second detecting terminal and a second detected terminal, the second detecting terminal is disposed on the upper fixed rail 310 and close to the second limiting groove 370, the second detected terminal is disposed on the upper sliding rail 311 and close to the limiting post 361,371, and the positions of the two terminals are corresponding (as shown in fig. 13). In another embodiment, the second detection terminal and the second detected terminal are arranged in the same manner as the first detection terminal and the first detected terminal (as shown in fig. 13 and 5), as long as the signals therebetween can satisfy the position determination requirement of the drawer 200 by the washing machine control system.

Alternatively, in another embodiment, the second limit switch 400 is disposed in the second limit groove 370 or on the limit posts 361 and 371. The second limit switch 400 has two states of open/close, and is required to be disposed at a position where the second limit groove 371 or the limit post 361,371 contacts, and the state of the second limit switch is triggered to change by the contact between the second limit groove 371 and the limit post 361,371, and the control system of the washing machine judges whether the drawer 200 is pushed in place or not according to the received state change signal.

Example four

As shown in fig. 15 to 17, the present embodiment describes a control method of a drawer type washing machine.

The drawer type washing machine comprises a machine body 100 with an opening at one side, a drawer 200 with a washing chamber 210 inside, a control system and a position detection device 400, wherein the drawer 200 can be pulled out of or pushed into the machine body 100 through the opening of the machine body 100, and is electrically connected with the control system, the actual position of the drawer 200 is judged when the washing machine is started, the washing machine is controlled to automatically pull out or push in the drawer 200, and the physical strength of a user is saved.

The drawer type washing machine in this embodiment further includes a drawer 300, and the drawer 300 is provided with a pull-out limiting portion and a push-in limiting portion. The in-place detection device 400 comprises a first in-place detection device and a second in-place detection device, wherein the first in-place detection device is arranged on the pull-out limiting part, and the second in-place detection device is arranged on the push-in limiting part. The control system determines the position of the drawer 200 according to the feedback signals of the first in-place detection device and the second in-place detection device.

As shown in fig. 1 to 14, the pull-out limiting portion includes an upper slide rail pull-out limiting structure 361 disposed on the upper slide rail 311, and an upper fixed rail pull-out limiting structure 360 disposed on the upper fixed rail 310, the first position detecting device is a first position detecting device 400 including a first detecting terminal and a first detected terminal, the first detecting terminal is disposed on the upper fixed rail pull-out limiting structure 360, and the first detected terminal is disposed on the upper slide rail pull-out limiting structure 361. In another embodiment, the first detecting terminal is disposed on the upper rail pull-out limiting structure 361, and the first detected terminal is disposed on the upper rail pull-out limiting structure 360.

Preferably, the first detecting terminal is fixed, disposed on the upper fixed rail pull-out limiting structure 360, and corresponds to the position of the first detected terminal on the upper fixed rail pull-out limiting structure 361. The position of the first detected terminal changes during the drawing/pushing process of the drawer 200 and the position of the first detected terminal changes, the generated signal value changes accordingly, and the control system of the washing machine judges whether the drawer 200 is drawn out in place or not according to the received signal value.

Or, in another scheme, the first in-position detecting device is a first limit switch 400, and is disposed on the upper sliding rail pull-out limit structure 361 or the upper fixed rail pull-out limit structure 360. The first limit switch 400 has two states of open/close, when the upper rail pull-out limit structure 361 contacts the upper fixed rail pull-out limit structure 360, the state of the first limit switch 400 changes, and the control system of the washing machine judges whether the drawer 200 is pulled out in place according to the received state change.

Impel spacing portion impel limit structure 371 including setting up the last slide rail that goes up on last slide rail 311, and set up the last fixed rail that goes up on last fixed rail 310 and impel limit structure 370, second detection terminal that targets in place be second position detection device, including second detection terminal and second detected terminal, second detection terminal set up last fixed rail impel limit structure 370 on, the second detected terminal set up last slide rail impel limit structure 371 on, the setting mode is the same with above-mentioned first detection terminal and first detected terminal, as long as the signal between the two can satisfy washing machine control system to the position judgement demand of drawer 200 can.

Or, in another scheme, the second position detecting device is a second limit switch 400, and is disposed on the upper sliding rail pushing limit structure 371 or the upper fixed rail pushing limit structure 370. The second limit switch 400 has two open/close states [ Q1], and is required to be disposed at a position where the upper slide rail pushing limit structure 371 or the upper fixed rail pushing limit structure 370 contacts with each other, and the state of the second limit switch is triggered to change by the contact between the two, and the control system of the washing machine determines whether the drawer 200 is pushed in place according to the received state change signal.

For specific implementation of the pull-out limiting portion and the push-in limiting portion, reference is made to the first to third embodiments, which are not described herein again.

And the control system is internally provided with a drawer in-place parameter, receives feedback information of the first in-place detection device and the second in-place detection device in real time and compares the feedback information with the built-in drawer in-place parameter. When the feedback information of the first in-place detection device received by the control system is matched with the drawer in-place parameter, judging that the drawer 200 is in a pull-out position; when the feedback information of the second in-place detection device received by the control system is matched with the drawer in-place parameter, judging that the drawer 200 is at the pushing position; and when the feedback information of the first in-place detection device and the second in-place detection device received by the control system is not matched with the drawer in-place parameter, judging that the drawer is in a pull-out/push-out state.

The drawer in-place parameter is specifically set according to the type of the in-place detection device, and when the in-place detection device is a position detection device, the drawer in-place parameter has a range value within a certain range, and it can be determined that the drawer 200 has been pulled out/pushed in place as long as a feedback signal of the in-place detection device falls within the range.

When the in-place detection device is a limit switch, the drawer in-place parameter is a state fixed value, for example, the drawer in-place parameter in the control system is 'on', and the initial state of the in-place detection device arranged on the pull-out limit part and the push-in limit part is 'off', when the drawer 200 is pulled out/pushed in place, the state of the limit switch is changed under the action of force, and is converted from 'off' to 'on', and is matched with the in-place parameter 'on' arranged in the control system, so that the drawer 200 can be judged to be pulled out/pushed in place.

The drawing device 300 includes a driving member electrically connected to the control system, and when the control system determines that the drawer 200 is in the drawing position, the control system controls the drawer 200 to be maintained in the drawing position until the laundry is completely put in. When the control system judges that the drawer 200 is in the pushing position, the drive component is controlled to pull out the drawer 200 to the pulling position, and the drawer is maintained at the pulling position until the clothes are put in. When the control system judges that the drawer 200 is not in the pull-out position and the push-in position, firstly, the drive component is controlled to pull out the drawer 200 to the pull-out position, and when the drawer 200 is pulled out to the pull-out position, the control system controls the drawer 200 to be maintained in the pull-out position until the clothes are put in; when the drawer 200 is not pulled out to the pulled-out position, the control system pushes alarm information to a user.

As shown in fig. 11, the driving part includes a driving motor 330, a coupling 331, a lead screw 332, and a base 333. The driving motor 330 is fixedly connected with the machine body 100, the lead screw 332 is connected with the driving motor 330 through the coupler 331, the length of the lead screw 332 is greater than or equal to the maximum stroke of the drawer 200, the base 333 is in threaded connection with the lead screw 332, linear motion is carried out on the lead screw 332 along the length direction of the lead screw, and the top of the base 333 is fixedly connected with the bottom of the drawer 200. When the driving motor 330 drives the screw 332 to rotate, the base disposed on the screw 332 starts to move linearly, thereby completing the linear movement of the drawer 200 and realizing the pulling-out or pushing-in motion of the drawer 200.

As shown in fig. 15, when the control system controls the driving member to pull out the drawer 200 to the pull-out position, the control system controls the driving motor 330 to rotate forward, the screw 332 rotates forward, the base 333 drives the drawer 200 to slide out gradually along the upper rail 311, the upper fixed rail 310, the lower rail 321, and the lower fixed rail 320, until the signal fed back to the control system by the first in-place detection device matches with the in-place drawer parameter, the control system controls the driving motor to stop operating. The process is completed by the automatic control of the washing machine control system without the control of a user, so that the time and labor are saved when the user pulls out the drawer 200, and the damage to the washing machine caused by improper subjective force application of the user is avoided.

When the control system judges that the drawer 200 is not in the pull-out position and the push-in position, firstly, the drive component is controlled to try to pull out the drawer 200 to the pull-out position, and if the drawer 200 can be successfully pulled out to the pull-out position, the control system controls the drawer 200 to be maintained in the pull-out position until the clothes are put in; if the drawer 200 is not successfully pulled out to the pulled-out position, the control system controls the washing machine to stop operating and pushes alarm information to the user. The working state of the washing machine can be known timely by a user, the washing machine can be checked according to the alarm content, and the user experience is improved.

When the drawer 200 is pulled out to the pulled-out position, the user may put laundry into the washing chamber 210 in the drawer 200. The control system is provided with a certain time interval, the user puts in clothes in the time interval, and when the time interval is over, the control system defaults that the user has finished putting in the clothes.

The mode of setting certain time interval makes the logic simple, is convenient for realize, nevertheless has the time interval to set up the unreasonable condition that causes the waste time of causing, also can appear the time interval not enough, and the clothing is not put in and is accomplished, and drawer 200 just gets into the condition of next process automatically, brings the inconvenience for the user.

Preferably, the washing machine further comprises a clothes detection device disposed in the washing chamber 210 or other positions capable of detecting the laundry in the washing chamber 210, the clothes detection device is electrically connected to the control system, and the control system of the washing machine determines the laundry loading condition according to the feedback information of the clothes detection device.

When the control system determines that the laundry is completely put in, the driving part is controlled to push the drawer 200 to the push position, and when the control system determines that the laundry is not completely put in, the drawer 200 is controlled to be maintained at the pull-out position until the laundry is completely put in.

The control system is provided with a first clothes change parameter and a first time interval. The first clothes change parameter is the change quantity of information collected by the clothes detection device twice, and the change quantity is a range value.

The control system is provided with continuous first time intervals, and the number of the first time intervals has a maximum value M. When the control system makes a difference between the clothes detection information received at the first time interval of the previous time and the next time, the difference is compared with the first clothes change parameter. And when the difference values of the continuous N (N < M) first time intervals are matched with the first clothes change parameter, judging that the clothes are thrown in. Otherwise, the clothes are judged not to be put in completely.

For example, the first laundry variation parameter is a weight variation of the washing chamber 210, the control system sets 30 consecutive first time intervals, the first time interval is 10s, the control system controls the laundry detection device to collect the weight of the washing chamber 210 every 10s, and makes a difference between the two received weights, and compares the difference with the first laundry variation parameter, when the differences of 4 consecutive first time intervals (i.e., the differences of 3 consecutive times) are all matched with the first laundry variation parameter, the control system determines that the laundry is put in, and controls the drawer 200 to advance to the advance position. And otherwise, judging that the clothes are not put in the clothes, pushing early warning information to the user at the same time after the control system runs for all 30 first time intervals, and pushing the drawer 200 and stopping washing or prolonging the clothes putting time according to the early warning information by the user.

The maximum value of the number of the first time intervals is set, so that the problem that when the clothes detection device of the washing machine breaks down, the detection result cannot be matched with the change parameter of the first clothes all the time, the first time intervals circulate infinitely, and the waste of time and energy is avoided. Meanwhile, as long as the setting condition is met, the control system can immediately finish the continuous operation of the first time interval to control the washing machine to enter the subsequent process, and compared with the fixed clothes putting time, the time and the energy are saved. After all the first time intervals have run, the clothes can not be judged to be put in, and the early warning information is pushed to the user, so that the user can know the working condition of the washing machine in time, timely remedial measures are taken, and the user experience is improved.

The user can selectively push the drawer 200 and stop washing the laundry according to the warning information, so as to prevent the drawer 200 from being in the pulled-out position for a long time and damaging the load-bearing parts of the drawer 300.

Or in another scheme, the control system collects the feedback information of the clothes detection device in real time, firstly compares the collected data of the two times, then compares the comparison value with the first clothes change parameter, and judges that the clothes feeding is finished when all the comparison values of the two times are matched with the first clothes change parameter in the first time interval. Otherwise, the clothes are judged not to be put in completely.

For example, the first laundry variation parameter is a weight variation of the washing chamber 210, 30 consecutive first time intervals are set in the control system, and the first time interval is 10s, the control system controls the laundry detection device to collect the weight of the washing chamber 210 in real time, and makes a difference between the two received weights, and compares the difference with the first laundry variation parameter, when all the differences in a certain first time interval (10s) are matched with the first laundry variation parameter, the control system determines that the laundry is put in, and controls the drawer 200 to advance to the advancing position. And otherwise, judging that the clothes are not put in the clothes, pushing early warning information to the user at the same time after the control system runs for all 30 first time intervals, and pushing the drawer 200 and stopping washing or prolonging the clothes putting time according to the early warning information by the user.

Alternatively, in another embodiment, the control system sets the idle parameter of the empty washing chamber 210, and compared with the above two embodiments, the control system does not use the difference between the feedback information of the clothes detection devices in the two previous times and the feedback information of the clothes detection devices in the. When the control system collects data once every a first time interval, when the difference value of continuous N (N < M) first time intervals is matched with the first clothes change parameter, the clothes throwing is judged to be finished; or when the control system collects data in real time, and the difference between the two times of difference in the first time interval is matched with the first clothes change parameter, the clothes throwing is judged to be finished.

As shown in fig. 17, when the control system determines that the laundry is completely put in, the driving part is controlled to push the drawer 200 to the push position.

As shown in fig. 16, when the control system controls the driving member to advance the drawer 200 to the advanced position, the control system controls the driving motor 330 to rotate reversely, the screw 332 rotates reversely, the base 333 drives the drawer 200 to gradually slide into the machine body 100 along the upper rail 311, the upper fixed rail 310, the lower rail 321, and the lower fixed rail 320, until the signal fed back to the control system by the second in-place detecting device matches the in-place drawer parameter, the control system controls the driving motor 330 to stop operating. The process is completed by the automatic control of the washing machine control system without the control of a user, so that the time and labor are saved when the user pushes the drawer 200, and the damage of the washing machine caused by improper subjective force application of the user is avoided.

When the control system judges that the drawer 200 is pushed to the pushing position, the washing machine is controlled to enter a subsequent program, and when the control system judges that the drawer 200 is not pushed to the pushing position successfully, the washing machine is controlled to stop running and alarm information is pushed to a user. The user can know the working process of the washing machine after receiving the alarm information, independently selects a processing mode, and improves user experience.

The pull-out/push-in and the washing process of the existing drawer type washing machine are respectively and independently controlled, no connection exists between the pull-out/push-in and the washing process, and after the pull-out/push-in of the washing machine is completed, a user needs to manually touch a washing button to enter the washing process, so that the automation degree is not high, and the time of the user is wasted. The invention relates the pulling-out/pushing-in process and the washing process, after the clothes are put in, the user can leave, and the washing machine automatically enters the washing process.

Or, in another scheme, the washing machine is provided with an automatic clothes feeding device connected with the control system, a user only needs to put clothes to be washed into the automatic clothes feeding device in daily life, and after the user touches a start button, the subsequent operation is completed fully automatically. The clothes feeding process is automatically finished by controlling the automatic clothes feeding device by the control system without user intervention.

When the user has the client connected with the washing machine, the user can directly communicate with the washing machine through the client no matter at home or outside, the washing machine is controlled to wash, the intelligent level of the whole process is improved, the washing is not limited by the position of the user any more, the time of the user is saved, and the user experience is improved.

In order to realize the link between the automation of the drawing/pushing process of the drawer 200 and the automation of the washing process and improve the user experience, the control system is further provided with a second time and a washing program, and the second time is set before the washing program. The washing procedure here is the prior art, and includes the processes of water intake, washing parameter selection, detergent putting, washing, dewatering, rinsing, etc., and is not described herein again.

When the control system determines that the user has finished putting the clothes and the drawer 200 has been pushed to the right position, the control system controls the washing machine to enter a second time interval, and in the second time interval, the control system pushes information whether to immediately enter the washing program to the user. When the user selects 'yes', the control system controls the washing machine to immediately enter a washing program; when the user selects 'no', the control system controls the washing machine to stop running. The process provides more selection spaces for users, so that clothes washing is more controllable, and user experience is improved.

And when the control system judges that the second time interval is over, controlling the washing machine to immediately enter a washing program. The default setting is that the user selects to immediately enter the washing program, so that the phenomenon that the washing time is wasted because the user forgets to select whether to enter the washing program is avoided.

And when the control system judges that the washing program is finished, controlling the washing machine to enter a third time interval, wherein the third time interval is set after the washing program is finished. And the control system pushes information whether the drawer is pulled out to the pull-out position immediately or not to the user in the third time interval. The process provides more selection spaces for users, so that clothes washing is more controllable, and user experience is improved.

When the user selects 'yes', the control system controls the driving part to pull out the drawer to the pull-out position and maintains the pull-out position until the clothes are taken out or the clothes are put in again; when the user selects 'no', the control system controls the washing machine to stop running.

When the washing is finished, if the user cannot take out the laundry in the washing chamber 210 in a short time, the drawer 200 is in the pulled-out position for a long time, which may cause damage to the drawer 300 of the washing machine, and therefore, when the control system determines that the third time is finished, the washing machine is controlled to stop operating. The user may directly select the "pull-out" option when the user needs to take out the laundry in the washing chamber 210, controlling the drawer 200 to be pulled out to the pulled-out position.

When the user needs to take out the laundry in the washing chamber 210, there are two cases: in the first case, the user does not wash clothes any more, the control system controls the drawer 200 to advance to the advancing position after judging that the clothes are taken out, and the washing is finished; in the second case, the user needs to wash clothes, the user puts the clothes to be washed again after the clothes are taken, and the control system controls the drawer 200 to advance to the advancing position after judging that the clothes are put again, and then the user enters the second time interval again to perform the subsequent washing process.

Therefore, a fourth time interval, a second laundry variation parameter and an empty parameter of the washing chamber in an empty state are set in the control system. The control system receives the feedback information of the clothes detection device in real time, makes a difference between the feedback information and the idle parameter, and compares the difference with the second clothes change parameter. And judging that the clothes are taken completely when all the difference values in the fourth time interval are matched with the second clothes change parameter.

And after the control system judges that the clothes are taken completely, pushing information of 'finish' and 'washing again' to the user. When the user selects 'end', the control system controls the driving part to push the drawer to the pushing position and controls the washing machine to stop running; when the user selects 'washing again', the control system controls the drawer to be maintained at the pull-out position until the clothes are put in again.

Or, in another scheme, the control system does not push the information of 'finish' and 'washing again' to the user any more, but directly judges whether the user operation belongs to the first situation or the second situation by directly utilizing the feedback information of the clothes detection device.

The control system is provided with a second clothes variation parameter and an empty parameter of the washing chamber 210 in an empty state, wherein the second clothes variation parameter is a variation reference of the washing chamber 210 in the first condition, and the variation is a range value.

Successive fourth time intervals are set in the control system, the number of the fourth time intervals having a maximum value. The control system controls the clothes detection device to collect data once every fourth time interval, the feedback information of the clothes detection device every time is firstly differed with the vacant parameter, the difference value is compared with the second clothes change parameter, when the difference value of N (N < the maximum value) continuous fourth time intervals is matched with the second clothes change parameter, the clothes taking is judged to be finished, the first condition is met, the drawer 200 is controlled to be pushed to the pushing position, and the clothes washing is finished; the control system firstly makes a difference between the feedback information of the clothes detection device every time and the vacant parameter, then makes a difference between the difference value of the two times before and after the feedback information of the clothes detection device every time and the difference value of the two times after the feedback information of the clothes detection device every time and the vacant parameter, compares the difference value with the first clothes change parameter, judges that the clothes are put in again when the difference value of the continuous N (N < maximum value) fourth time intervals is matched with the first clothes change parameter after the difference value of the O (O < N) fourth time intervals is matched with the second clothes change parameter, belongs to the second condition, controls the drawer 200 to be pushed to the pushing position, enters the second time interval again, and enters the second working cycle.

For example, the second laundry variation parameter is a weight variation of the washing chamber 210, which is a range value, the empty parameter of the washing chamber 210 in the empty state is a fixed value, 30 consecutive fourth time intervals are set in the control system, and the fourth time interval is 10s, the control system controls the laundry detection device to collect the weight of the washing chamber 210 every 10s, and firstly, the collected weight is different from the empty parameter, the difference value is compared with the second laundry variation parameter, when the difference value of 4 consecutive (N < maximum) fourth time intervals is matched with the second laundry variation parameter, it is determined that the laundry is taken out, which belongs to the first case, the drawer 200 is controlled to advance to the advance position, and the washing is finished.

The control system firstly makes a difference between the collected weight and the vacant parameter every time, makes a difference between the difference of the two times before and after the collected weight and compares the difference with the first clothes change parameter, judges that the clothes are put in again when the difference of 1 fourth time interval is matched with the second clothes change parameter (namely the washing chamber 210 is in the vacant state) and the difference of 4 continuous (N < maximum) fourth time intervals is matched with the first clothes change parameter, belongs to the second condition, controls the drawer 200 to advance to the advancing position, reenters the second time interval and enters the second working cycle.

The control method of the drawer type washing machine described in this embodiment realizes the one-key starting function of the drawer type washing machine, and the user can realize the pulling-out/pushing-in of the drawer 200 and the automation of the washing process only by touching the "start" button, and the user only needs to put in or take out the clothes midway, thereby saving time and labor. Meanwhile, the drawer type washing machine can be also provided with a wireless communication module which is in wireless communication with a user mobile terminal, so that the limitation of the position of a user on washing is eliminated, the user can control the working process of the washing machine outdoors, and the user experience is improved.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A drawer type washing machine comprises

A body having an opening at one side;

the drawing device is arranged between the machine body and the drawer;

it is characterized by also comprising:

2. A drawer type washing machine as claimed in claim 1, wherein:

the drawing device is provided with a drawing limiting part;

3. A drawer type washing machine as claimed in claim 2, wherein:

the drawing device is also provided with a pushing limiting part;

4. A drawer type washing machine as claimed in claim 3, wherein:

the drawing device comprises a ball, an upper sliding rail and an upper fixed rail, the upper sliding rail and the upper fixed rail are mutually matched through the ball in a sliding way, the upper sliding rail is fixedly connected with the drawer, and the upper fixed rail is fixedly connected with the machine body;

5. The drawer type washing machine as claimed in claim 4, wherein:

the pushing limiting part comprises an upper sliding rail pushing limiting structure arranged on the upper sliding rail and an upper fixed rail pushing limiting structure arranged on the upper fixed rail, the second position detection device comprises a second detection terminal and a second detected terminal, the second detection terminal is arranged on the upper fixed rail pushing limiting structure, and the second detected terminal is arranged on the upper sliding rail pushing limiting structure;

6. A drawer type washing machine as claimed in claim 5, wherein:

the upper fixed rail pull-out limiting structure is a first limiting column arranged at one end of the upper fixed rail, which is far away from the opening of the machine body, the upper fixed rail pull-out limiting structure is a first limiting groove arranged at one end of the upper fixed rail, which is close to the opening of the machine body, the first limiting column is matched with the first limiting groove in position, and the first limiting column and the first limiting groove are in clamping fit to form the pull-out limiting part;

7. A drawer type washing machine as claimed in claim 5, wherein:

the upper fixed rail propelling and limiting structure is a second limiting groove arranged at one end of the upper fixed rail, which is far away from the opening of the machine body, the upper fixed rail propelling and limiting structure is a second limiting column arranged at one end of the upper fixed rail, which is far away from the opening of the machine body, the second limiting column is matched with the second limiting groove in position, and the second limiting column and the second limiting groove are in clamping fit to form the propelling and limiting part;

8. A drawer type washing machine as claimed in claim 5, wherein:

the upper fixed rail pulling-out limiting structure is a limiting column arranged at one end of the upper fixed rail, which is far away from the opening of the machine body, the upper fixed rail pulling-out limiting structure is a first limiting groove arranged at one end of the upper fixed rail, which is close to the opening of the machine body, the limiting column is matched with the first limiting groove in position, and the limiting column and the first limiting groove are in clamping fit to form the pulling-out limiting part;

9. A drawer type washing machine as claimed in claim 8, wherein:

the upper fixed rail propelling and limiting structure is the limiting column, the upper fixed rail propelling and limiting structure is a second limiting groove arranged at one end of the upper fixed rail, which is far away from the opening of the machine body, the second limiting groove is matched with the limiting column in position, and the second limiting groove and the limiting column are clamped and matched to form the propelling and limiting part;

10. A drawer type washing machine as claimed in claim 5, wherein:

the upper fixed rail is provided with a first sliding groove, the upper fixed rail is provided with a second sliding groove, the first sliding groove and the second sliding groove are corresponding in position, the ball is arranged in the first sliding groove and the second sliding groove, and the ball frame is arranged between the first sliding groove and the second sliding groove;