CN118029102A - Clothes treatment equipment with dehydration function - Google Patents

Abstract

The invention provides a clothes treatment device with a dehydration function, wherein a flat hollow bag is added at the bottom of an inner roller, so that the influence on the use space of a washing machine is small; the periphery of the hollow bag is corrugated and can be stretched out. When the control system of the washing machine weighs the clothes before the clothes are dehydrated, a proper amount of balance liquid can be automatically injected through the water pump according to the weight of the clothes, and when the balance can be automatically adjusted by utilizing inertia during the clothes dehydration, the dynamic balance during the high-speed dehydration can be accurately controlled. Meanwhile, the noise during washing and dewatering can be reduced, and the problem of vibration and displacement of the washing machine is reduced. When the dehydration is completed, the control system can pump out the balance liquid, and the influence on the washing or dehydration process is small.

Description

Clothes treatment equipment with dehydration function

Technical Field

The invention relates to the technical field of washing machines, in particular to clothes treatment equipment with a dewatering function.

Background

The washing machine rotates at a high speed during the process of washing and dewatering, and throws out water on clothes. However, the clothes after water absorption are heavier, such as thicker cotton clothes, jeans and the like, and large eccentric unbalanced load is easy to occur when the roller rotates, so that the washing machine can not realize high-speed rotation dehydration, or large noise and vibration displacement problems occur when the washing machine rotates at a high speed, and the use experience of a user and the service life of the washing machine are seriously affected. The problem is one of key problems puzzling the development of the washing machine, the existing solution is to arrange a balancing weight, a hanging spring and a damper on an outer cylinder to carry out combined dynamic balance vibration reduction, and the vibration reduction design causes the whole machine to be extremely heavy; another solution is to use a balancing ring, and a steel ball or an iron block and other heavy objects are added in the balancing ring, so that the steel ball automatically moves to the opposite side of the eccentric during the clothes dehydration process to realize the balancing effect, but the method is eccentric with fixed weight, and may not realize the better balancing effect.

Based on this, there is a need for improvement.

Disclosure of Invention

The present application has been made based on the findings and knowledge of the inventors regarding the following problems and facts: the application can realize the adjustment of dynamic balance of the washing machine in a dewatering state, can effectively reduce the eccentricity of the dewatering stage and reduce the running noise of the washing machine.

The invention provides a dynamic balance control system of a drum in a drum washing machine, which can dynamically adjust eccentric mass according to eccentric value, aiming at the technical defects of the prior art for adjusting the dehydration dynamic balance of the washing machine. Aims to solve the technical problems at least to a certain extent.

To this end, the present invention proposes a laundry treating apparatus having a dehydrating function, comprising:

A laundry treating drum having a drum cavity formed inside;

The bag body is paved at the bottom of the cylinder cavity;

The bag body is a telescopic elastic body with a hollow bag cavity; the weight liquid is sealed in the bag cavity of the bag body, and the weight liquid can be filled or pumped out of the bag cavity in a controlled manner to enable the bag body to stretch or shrink.

Optionally, the bag body is flat, and has an upper wall and a lower wall opposite to each other and a side wall surrounding between the upper wall and the lower wall, the lower wall has a shape adapted to the bottom of the drum cavity, the side wall has a shape adapted to the inner wall of the drum cavity of the laundry treatment drum, and the upper wall is formed with a raised auxiliary washing structure on a side facing the drum cavity.

Optionally, the laundry treating drum comprises an outer drum and an inner drum, the drum cavity is formed in the inner drum, and the bag body is detachably arranged on the inner bottom wall of the inner drum;

Optionally, a liquid inlet is formed in the lower wall of the bag body; the inner cylinder is connected with a rotating shaft which is a hollow shaft; the clothes treatment equipment is provided with an infusion pipeline which extends into the inner cylinder from the outer part of the inner cylinder along the hollow shaft and is in sealing connection with the liquid inlet;

Optionally, one end of the rotating shaft is in sealing fit with the liquid inlet; the shaft opening at the other end of the rotating shaft is connected with a conveying pipe, and the other end of the conveying pipe is connected with a liquid storage box;

optionally, the rotating shaft and the laundry treating drum are of an integral structure;

optionally, the inner wall of axis of rotation mouth is can link up the wall surface for with the conveyer pipe links up, and the clearance fit department of linking has rotary seal portion.

Optionally, the rotary sealing part sequentially comprises from inside to outside: small seal rings, bearings and large seal rings; the bearing comprises: the middle position is arranged at the clearance fit position; the small seal ring: the inner side of the bearing in the axial direction is close to the capsule body and is positioned between the outer wall of the conveying pipe and the inner wall of the rotating shaft; the large sealing ring: the outer side of the bearing in the axial direction is close to the conveying pipe and is positioned between the outer wall of the conveying pipe and the inner wall of the rotating shaft;

Optionally, a water pump is arranged between the shaft opening of the rotating shaft and the liquid storage box and is used for extracting the weight liquid;

Optionally, the side wall of the bag body is of a corrugated telescopic structure and/or other telescopic structures;

Optionally, a convex buckle is arranged on the joint surface of the bag body and the barrel cavity, and the buckle is embedded into a corresponding adapting hole of the bottom wall of the barrel cavity; for securing with the bottom wall of the cartridge chamber;

the invention has the beneficial effects that:

The application adds a flat hollow bag at the bottom of the inner roller, which has little influence on the using space of the washing machine. The periphery of the bag body is corrugated, so that the bag body has better elasticity. When the clothes treatment equipment is used for weighing clothes before dehydrating, a proper amount of weight balancing liquid can be automatically injected through the water pump according to the weight of wet clothes, and the weight balancing liquid can be automatically adjusted by inertia during the clothes dehydration; during balancing, dynamic balance during high-speed dehydration can be accurately controlled; meanwhile, the noise during washing and dewatering can be reduced, and the problem of vibration and displacement of the washing equipment is reduced; when the dewatering function is completed, the control system will withdraw the balancing weight liquid with less impact on the washing or dewatering process.

Further, the shape of the surface of the bag facing the cylinder can be adjusted by making the bag into a rubber part, and the auxiliary washing structures with different shapes such as patterns, ribs and the like can realize better washing effect.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic diagram of a cross-sectional structure of a complete machine state according to an embodiment of the present invention;

FIG. 2 is a schematic view of a partially enlarged construction of a bladder edge according to an embodiment of the invention;

FIG. 3 is a schematic diagram of a dehydration equilibrium state structure according to an embodiment of the present invention;

FIG. 4 is a schematic view of a partially enlarged structure of a bladder edge bellows at dynamic balancing according to an embodiment of the present invention;

FIG. 5 is a flow diagram of a control system according to an embodiment of the invention;

FIG. 6 is a schematic view of a partially enlarged construction of a rotary seal portion according to an embodiment of the present invention;

Reference numerals:

1. A barrel cavity; 2. a bladder; 201. a corrugated structure; 202. a buckle; 203. a liquid inlet; 3. a rotating shaft; 4. a rotary seal part; 401. a small seal ring; 402. a bearing; 403. a large seal ring; 5. a liquid storage box; 6. a water pump; 7. a delivery tube; 8. clothing items; 9. a laundry treating drum; 10. an auxiliary washing structure.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

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

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The existing clothes treatment equipment has the problems that the existing clothes treatment equipment is heavy after water absorption of clothes, such as thicker cotton clothes, jeans and the like, and large eccentric unbalanced load is easy to occur when a dewatering roller rotates, so that the washing machine cannot realize high-speed rotation dewatering, or large noise, vibration displacement and the like occur when the washing machine rotates at a high speed, and the use experience of a user and the service life of the washing machine are seriously influenced. The outer cylinder is provided with a balancing weight, a suspension spring and a damper for combined dynamic balance vibration reduction, and the vibration reduction design causes the whole machine to be extremely heavy; in addition, a balancing ring is adopted, and steel balls or iron blocks and other heavier objects are added in the balancing ring, so that the steel balls automatically move to the opposite sides of the eccentric during the clothes dehydration process, and the balancing effect is realized. According to the invention, the elastic bag body which is telescopic and can change the volume of the bag body cavity and is filled with the weight liquid is arranged at the inner bottom of the washing barrel, so that the dynamic balance of the washing machine in a dewatering state can be adjusted, the eccentricity of the dewatering stage can be effectively reduced through the adjustment quantity of the weight liquid, and the running noise of the washing machine is reduced.

Example 1

Referring to fig. 1 to 4 and 6, the present embodiment provides a laundry treating apparatus having a dehydrating function, such as a drum washing machine, the laundry treating apparatus including:

A laundry treating drum 9, the interior of which forms a drum cavity 1;

The bag body 2 is paved at the bottom of the cylinder cavity 1; the capsule body 2 is a telescopic elastic body with a hollow capsule cavity; the inside of the bag cavity of the bag body 2 is sealed with a weight liquid, and the weight liquid can be filled or pumped out of the bag cavity to expand or contract the bag body 2.

Furthermore, the hollow bag body 2 is added at the bottom of the cylinder cavity 1, so that the influence on the use space of the washing machine is small. When the clothes treatment equipment weighs clothes before dehydrating, a proper amount of weight liquid is automatically injected through the water pump 6 according to the weight of wet clothes, and the weight liquid can be automatically adjusted by inertia when the clothes are dehydrated; during balancing, dynamic balance during high-speed dehydration can be accurately controlled; meanwhile, the noise during washing and dewatering can be reduced, and the problem of vibration and displacement of the washing equipment is reduced.

Preferably, the capsule 2 is flat, so that it is laid on the bottom of the tub of the washing machine like a pad. Specifically, the capsule 2 has opposite upper and lower walls and a side wall surrounding between the upper and lower walls, the lower wall has a shape adapted to the bottom of the drum 1, and is closely attached to the bottom wall of the drum 1, the side wall has a shape adapted to the inner side wall of the drum 1 of the laundry treating drum 9, and is closely attached to the side wall of the drum 1, and in order to further utilize the capsule to achieve the effect of multiple purposes, the upper wall is formed with a raised auxiliary washing structure 10 on the side facing the drum 1. The joint surface of the bag body 2 and the cylinder cavity 1 is provided with a raised buckle 202, and the buckle 202 is embedded into a corresponding adapting hole of the bottom wall of the cylinder cavity 1 and is connected with the bottom wall of the cylinder cavity 1, so that the bag body 2 can rotate together with the cylinder body 1; the bag body 2 is provided with a liquid inlet 203 at one side close to the rotating shaft 3, a corrugated sealing ring is arranged at the outer side of the liquid inlet 203 and is tightly connected with the hollow rotating shaft 3, the other end of the liquid inlet is connected with the conveying pipe 7 through two sealing rings, the inner ring of the bearing 402 is fixed with the conveying pipe 7, the outer ring of the bearing 402 is fixed with the rotating shaft 3, and the two sealing rings are arranged at two ends of the bearing 402, so that the conveying pipe 7 can not rotate while the shaft rotates, and the sealing effect is ensured; the other end of the conveying pipe 7 is connected with a water pump 6 and a liquid storage box 5 for pumping in and out balance liquid.

Further, the balloon 2 is configured to be axially expandable and contractible by a bellows and/or other expandable structure 201. The method is suitable for injecting a proper amount of weight liquid according to the weight of wet clothes, and when the dehydration function is completed, the weight liquid is pumped out, so that the influence on the washing or dehydration process is small.

Preferably, the washing tub includes an outer tub and an inner tub, and a tub cavity 1 is formed in the inner tub;

it is further preferred that the bladder 2 is removably disposed on the inner bottom wall of the inner barrel for ease of renewal and cleaning.

Furthermore, the application also realizes the injection and the discharge of the weight liquid in the cavity of the capsule body through the rotating shaft.

As one implementation mode, the inner cylinder is connected with a rotating shaft 3, and the rotating shaft 3 is a hollow shaft; the lower wall of the cylinder body 2 is provided with a liquid inlet; the clothes treating apparatus is provided with a transfusion pipe which extends into the inner cylinder from the outside of the inner cylinder along the hollow shaft and is connected with the liquid inlet 203 in a sealing way.

As another embodiment, one end of the rotating shaft 3 is sealed and attached with the liquid inlet 203; the shaft opening at the other end of the rotating shaft 3 is connected with a conveying pipe 7, and the other end of the conveying pipe 7 is connected with a liquid storage box 5.

Preferably, the rotation shaft 3 is integrally formed with the laundry treating drum 9. The inner wall of the shaft opening of the rotating shaft 3 is an engageable wall surface for being engaged with the conveying pipe 7, and a rotary sealing part 4 is arranged at the engaged clearance fit position.

Specifically, the rotary seal portion 4 includes, in order from inside to outside: a small seal ring 401, a bearing 402, and a large seal ring 403; bearing 402: the middle position is arranged at the clearance fit position; small seal ring 401: the inner side of the bearing 402 in the axial direction is close to the capsule body and is positioned between the outer wall of the conveying pipe 7 and the inner wall of the rotating shaft 3; large seal ring 403: the outer side of the bearing 402 in the axial direction is close to the conveying pipe 7 and is positioned between the outer wall of the conveying pipe 7 and the inner wall of the rotating shaft 3. By rotating the rotary seal 4, the present application can conveniently realize rotary seal.

Of course, in order to enable the application to extract the counterweight liquid in the bag body, a water pump 6 is arranged between the shaft opening of the rotating shaft 3 and the liquid storage box 5 and is used for extracting the counterweight liquid.

Example 2

Taking example of laundry treatment apparatus embodiment 1 having a dehydration function, a control method embodiment is provided;

As shown in fig. 5, when the drum washing machine completes the washing laundry start-up dehydration process, the washing machine starts to control the drum cavity 1 to rotate through the control system, weighs the wet laundry 8, simultaneously analyzes the eccentric value of the laundry 8, and calculates the weight required to supplement the balancing liquid according to the eccentric value. The controller controls the starting water pump 6 to extract balance liquid from the liquid storage box 5, and the balance liquid enters the bag body 2 through the conveying pipe 7 and the rotating shaft 3, and the bag body 2 stretches and expands axially at the moment. When the calculated amount of balance liquid is replenished, the cylinder cavity 1 rotates and gradually increases the rotating speed, when the rotating speed of the cylinder cavity 1 gradually increases, if the cylinder cavity 1 cannot be dehydrated normally due to large eccentricity, the rotation of the cylinder cavity 1 is stopped, the eccentric value is measured and analyzed again, the balance liquid is regulated, and the rotating speed is gradually increased again for dehydration; when the rotational speed of the drum 1 reaches a normal value, the dewatering procedure is started. When normal dehydration is carried out, the control system judges whether the cylinder cavity 1 starts to slow down, if the dehydration procedure is not completed, the dehydration is continued, and the next judgment is waited; if the dewatering function is completed, the drum cavity 1 starts to slow down, when the speed of the clothes treatment drum 9 drops below a normal value, the water pump 6 works, the counterweight liquid in the bag body 2 is pumped into the liquid storage box 5 to be stored, the water pump 6 stops working, and at the moment, the drum cavity 1 stops rotating; there is no need to wait for the complete stop of the laundry treating drum 9 before extracting the balancing liquid, so as to reduce the time of the complete process.

Another advantage of the present invention is that it is not necessary to wait for the complete stop of the laundry treatment drum 9 before extracting the balancing liquid, but when the dehydration function is completed, the drum 1 starts to slow down, when the speed of the laundry treatment drum 9 drops below the normal value, the water pump 6 immediately works, the balancing liquid in the capsule 2 is extracted to the liquid storage box 5 for storage, the water pump 6 stops working, and the drum 1 stops rotating at this time; the whole process is completed, so that the time for independently conveying the weight liquid to the liquid storage box 5 is saved, and the whole process time is saved.

Example 3

The present embodiment also takes embodiment 1 as an example, and a method embodiment for measuring eccentricity:

The method comprises the steps of gradually accelerating, maintaining for 3s at 100rpm to detect an initial eccentric value, judging whether the rotating speed can be used for a certain time or not according to the initial eccentric value, if not, decelerating to 0rpm to stop for 3-6s, starting the next detection according to the eccentric detection condition, and if so, determining a stable eccentric value.

The method for analyzing the eccentric value is to analyze the data obtained by parameters such as the rotation angle, the acceleration and the like when the roller starts to rotate, so that the data of the eccentric value is obtained after the roller rotates, and then the balance liquid is calculated and added.

Firstly, the washing machine inputs several groups of parameters in advance in a database: the eccentric amount is 100g, for example, the eccentric amount is stepped, (0 g,100g ], (100 g,200g ], (200, 300 g), … …, (1400, 1500g ], each eccentric amount range corresponds to different motor parameters (current or power), each eccentric value p0, p1, p2, … … and p15 is edited by each motor parameter, each eccentric value needs to be tested to determine the weight g1, g2, g3, … … and g15 of the balance liquid, the three parameters (eccentric amount, eccentric value and weight of the balance liquid) need to be measured in an internal test in the production process of the washing machine and are in one-to-one correspondence and stored in a database, the eccentric value is measured by comparing the change of the motor parameters (current or power) under different loads, the weight of the balance liquid needing to be added under the current eccentric value is determined by reading the database, the balance liquid is added, and the weight of the balance liquid is adjusted when the eccentric value is changed after the balance liquid is input after the balance liquid is rotated.

The control system comprises a processor, a memory, a data bus, an input/output interface and a communication interface, when judging whether the dehydration is finished, the processor (CPU) reads the output of the storage area to judge whether the current dehydration time reaches the preset time (3-6 minutes), and if the current dehydration time reaches a set value, the CPU sends an instruction to a chip of the driving motor to instruct the chip to control the driving motor to slow down so that the driving motor gradually slows down to 0 revolution; if the set time is not reached, the CPU continues waiting and judges whether the set time is reached next time.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims (11)

1. A laundry treating apparatus having a dehydrating function, the laundry treating apparatus comprising:

a laundry treatment drum (9) having a drum chamber (1) formed therein;

The bag body (2) is paved at the bottom of the cylinder cavity (1);

The bag body (2) is a telescopic elastic body with a hollow bag cavity; the bag cavity of the bag body (2) is sealed with a weight liquid, and the weight liquid can be filled or extracted from the bag cavity in a controlled manner to enable the bag body (2) to stretch or shrink.

2. The laundry treating apparatus having a dehydrating function according to claim 1, wherein:

The capsule (2) is flat, has opposite upper and lower walls and encloses the lateral wall of establishing between upper and lower walls, the lower wall has the shape of adaptation with the bottom of section of thick bamboo chamber (1), the lateral wall has the shape of adaptation with the inner wall of section of thick bamboo chamber (1) of clothing processing section of thick bamboo (9), the upper wall is towards section of thick bamboo chamber (1) one side is formed with bellied auxiliary washing structure (10).

3. The laundry treating apparatus having a dehydrating function according to claim 1, wherein:

the clothes treating cylinder (9) comprises an outer cylinder and an inner cylinder, the cylinder cavity (1) is formed in the inner cylinder, and the bag body (2) is detachably arranged on the inner bottom wall of the inner cylinder.

4. The laundry treating apparatus having a dehydrating function according to claim 1, wherein:

the lower wall of the bag body (2) is provided with a liquid inlet (203);

the inner cylinder is connected with a rotating shaft (3), and the rotating shaft (3) is a hollow shaft;

the clothes treatment equipment is provided with an infusion pipeline which extends into the inner cylinder from the outer part of the inner cylinder along the rotating shaft (3) and is in sealing connection with the liquid inlet (203).

5. The laundry treating apparatus having a dehydrating function according to claim 1, wherein:

the lower wall of the bag body (2) is provided with a liquid inlet (203);

The inner cylinder is connected with a rotating shaft (3), the rotating shaft (3) is a hollow shaft, and one end of the rotating shaft (3) is in sealing fit with the liquid inlet (203);

The shaft opening at the other end of the rotating shaft (3) is connected with a conveying pipe (7), and the other end of the conveying pipe (7) is connected with a liquid storage box (5).

6. The laundry treating apparatus having a dehydrating function according to claim 5, wherein:

the rotating shaft (3) and the clothes treating cylinder (9) are of an integral structure.

7. The laundry treating apparatus having a dehydrating function according to claim 5, wherein:

The inner wall of the shaft opening of the rotating shaft (3) is a wall surface which can be connected and is used for being connected with the conveying pipe (7), and a rotary sealing part (4) is arranged at the connected clearance fit position.

8. The laundry treating apparatus having a dehydrating function according to claim 7, wherein:

The rotary sealing part (4) sequentially comprises the following components from inside to outside: a small seal ring (401), a bearing (402) and a large seal ring (403);

-said bearing (402): the middle position is arranged at the clearance fit position;

-said small seal ring (401): the inner side of the bearing (402) in the axial direction is close to the bag body and is positioned between the outer wall of the conveying pipe (7) and the inner wall of the rotating shaft (3);

-said large sealing ring (403): the outer side of the bearing (402) in the axial direction is close to the conveying pipe (7) and is positioned between the outer wall of the conveying pipe (7) and the inner wall of the rotating shaft (3).

9. The laundry treating apparatus having a dehydrating function according to claim 5, wherein:

A water pump (6) is arranged between the shaft opening of the rotating shaft (3) and the liquid storage box (5) and is used for extracting the weight liquid.

10. The laundry treating apparatus having a dehydrating function according to claim 2, wherein:

the side wall of the bag body (2) is of a corrugated telescopic structure and/or other telescopic structures.

11. A laundry treatment apparatus having a dehydrating function according to claim 3, characterized in that:

The joint surface of the bag body (2) and the cylinder cavity (1) is provided with a convex buckle (202), and the buckle (202) is embedded into a corresponding adapting hole of the bottom wall of the cylinder cavity (1); for being fixed with the bottom wall of the cylinder cavity (1).