CN111826895B

CN111826895B - Rotary balancing device and clothes treatment equipment

Info

Publication number: CN111826895B
Application number: CN201910319799.3A
Authority: CN
Inventors: 韩运晴; 梅飞翔; 张肃; 张辉
Original assignee: Midea Group Co Ltd; Guangdong Midea White Goods Technology Innovation Center Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea White Goods Technology Innovation Center Co Ltd
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2021-11-23
Anticipated expiration: 2039-04-19
Also published as: WO2020211421A1; CN111826895A

Abstract

The embodiment of the application provides a rotary balancing device and clothes treatment equipment, wherein the rotary balancing device comprises a rotary body and a partition wall; a plurality of chambers distributed along the circumferential direction are formed in the rotating body, and the internal spaces of the chambers are mutually isolated so as to block liquid from flowing among the chambers; the partition wall is arranged in at least one chamber, the partition wall extends along the circumferential direction of the rotating body to divide the chamber into a plurality of flow passages along the radial direction, the flow passages are communicated, and the inner wall surface of the partition wall faces to the rotating center line of the rotating body. Therefore, the rotating balancing device provided by the embodiment of the application has the advantages that the liquid can be rapidly and uniformly distributed in the circumferential direction of the cavity of the rotating body, the balancing response to the load eccentricity is fast, and the clothes treatment time can be effectively shortened; in addition, the liquid can be distributed in the flow channel more uniformly even when the rotation speed of the rotation balancing device is low.

Description

Rotary balancing device and clothes treatment equipment

Technical Field

The application relates to the technical field of rotation balance control, in particular to a rotation balance device and clothes treatment equipment.

Background

Taking a washing machine as an example, when the washing machine runs and clothes are unevenly distributed, the inner drum of the washing machine eccentrically rotates, so that the washing machine has large amplitude and high noise. Some related technologies adopt a balance ring technology to relieve the eccentricity degree of the inner drum of the washing machine, but the structural design of the balance ring is unreasonable, the deviation rectifying capability is weak, and the load eccentricity condition of the inner drum of the washing machine is still more prominent.

Disclosure of Invention

In view of the above, it is desirable to provide a rotating balancing device and a clothes treating apparatus having better balancing performance for load eccentricity.

In order to solve the above problem, a first aspect of an embodiment of the present application provides a rotation balancing device, including a rotating body and a partition wall; the rotating body is provided with a rotating central line, the rotating body rotates around the rotating central line, a plurality of chambers distributed along the circumferential direction are formed in the rotating body, and the inner spaces of the chambers are isolated from each other so as to block liquid from flowing among the chambers; the partition wall is arranged in at least one chamber, the partition wall extends along the circumferential direction of the rotating body to divide the chamber into a plurality of flow passages along the radial direction, the flow passages are communicated, and the inner wall surface of the partition wall faces towards the rotating center line of the rotating body.

Furthermore, the partition wall is arc-shaped, and the circle center corresponding to the partition wall is located on the rotation center line of the rotating body.

Further, at least one of the partition walls is formed with at least one notch to divide the partition wall into at least two sections in the circumferential direction.

Furthermore, the partition wall is arc-shaped, the central angle corresponding to the gap is gamma, and gamma is more than or equal to 0.2 degrees and less than or equal to 3 degrees.

Further, the widths of the plurality of flow passages along the radial direction of the rotating body are equal; and/or the number of the flow passages distributed along the radial direction of the rotating body is y, and y is more than or equal to 2 and less than or equal to 11.

Furthermore, the width of the flow channel along the radial direction of the rotating body is H millimeters, the minimum rotating speed required by the rotating balancing device is n revolutions per minute, and n/H is more than or equal to 5 and less than or equal to 40; and/or the maximum value of H in the width H of the plurality of flow passages along the radial direction of the rotating body is H_maxMm, minimum value of H is H_minMm, 1 ≤ H_max/H_min≤5。

Further, at least one divide into in the chamber along a plurality of subchambers that the circumference of rotating the body was arranged, it is a plurality of the subchamber intercommunication, at least one be provided with in the subchamber the partition wall.

Further, a first wall surface and a second wall surface extending in a radial direction of the rotating body are arranged in the cavity, the partition wall is arranged between the first wall surface and the second wall surface, and the partition wall comprises a head end part and a tail end part which are oppositely arranged in a rotating direction of the rotating body; a first space is formed between the head end part of at least one partition wall and the first wall surface; and/or a second interval is formed between the tail end part of at least one partition wall and the second wall surface.

Furthermore, the partition wall is arc-shaped; under the condition that the first interval is formed between the head end part of the partition wall and the first wall surface, the central angle corresponding to the first interval is theta, and theta is more than or equal to 0.1 degree and less than or equal to 5 degrees; and/or under the condition that a second interval is formed between the tail end part of the partition wall and the second wall surface, the central angle corresponding to the second interval is beta, and the beta is more than or equal to 0.1 degrees and less than or equal to 5 degrees.

Further, the rotating balancing device comprises a sub-partition plate arranged in the flow passage, and the sub-partition plate extends along the radial direction of the rotating body; the partition walls are arranged along the radial direction of the rotating body, and the sub-partition plates are arranged between every two adjacent partition walls.

Furthermore, at least one through hole penetrating through the partition wall is formed on at least one partition wall.

Furthermore, the through hole is circular, the aperture of the through hole is d, and d is more than or equal to 1mm and less than or equal to 3 mm; and/or the number of the through holes on one partition wall is x, wherein x is more than or equal to 30 and less than or equal to 1000.

Further, the chamber is provided with a flow passage configured to: when the rotating body rotates at a speed greater than or equal to a first rotating speed, liquid can be injected into the cavity through the overflowing channel, and when the rotating body rotates at a speed less than the first rotating speed or the rotating body is in a static condition, the liquid in the cavity can be discharged out of the cavity through the overflowing channel.

Further, the rotating body includes an annular main body portion and a plurality of partition portions located in the annular main body portion, the plurality of partition portions being arranged at intervals in a circumferential direction of the annular main body portion to partition an inner space of the annular main body portion into the plurality of chambers.

Further, the annular main body part comprises a top plate, a bottom plate and a peripheral plate located at the radial outer side of the rotating body, the top plate, the bottom plate and the peripheral plate jointly enclose an annular space, and each cavity is a part of the annular space.

Further, an inner side of the annular space in a radial direction of the rotating body is open; the annular main body part further comprises a frame body, the frame body is arranged at the opening position of the annular space, an opening is formed in the middle area of the frame body, and the edge of the frame body is connected with the top plate, the bottom plate and the separating part.

Further, the rotational balancing device comprises at least one sub-barrier arranged in the chamber, which sub-barrier separates the chamber into a plurality of communicating sub-chambers' arranged in the circumferential direction.

Further, a first gap through which liquid flows is formed between the outer side of the sub-stopper in the radial direction of the rotating body and the peripheral plate; and/or a second gap is formed between the inner side of the sub stopper along the radial direction of the rotating body and the inner wall of the frame body.

A second aspect of the embodiments of the present application provides a laundry processing apparatus, including urceolus, inner tube and above-mentioned any one of the rotation balancing device, the inner tube set up with rotating in the urceolus, the inner tube has axis of rotation, the rotation center line of rotating body with the axis of rotation of inner tube is parallel or coincide, the inner tube with the synchronous rotation of rotation balancing device.

Further, the clothes treatment equipment comprises a water injection piece, and the water injection piece can independently control the liquid injection amount entering any one chamber in the rotation process of the inner drum.

Further, the rotation balancing device is arranged on one axial side of the inner cylinder, and the outer diameter of the rotating body is smaller than or equal to that of the inner cylinder.

According to the rotating balancing device, after liquid is injected into the corresponding chamber, in the rotating process of the rotating balancing device, on one hand, the liquid is thrown to the inner wall of the outermost side of the chamber under the action of centrifugal force, and at the moment, the load eccentricity can be greatly balanced, so that the vibration of the clothes processing equipment during dewatering can be effectively reduced; on the other hand, because the partition wall has a steady flow effect on the liquid and a friction effect on the liquid, the liquid can be uniformly distributed in the circumferential direction in the chamber, the fluctuation of the liquid level is small, and the performance of balancing load eccentricity of the rotating balancing device is greatly improved. Furthermore, depending on the amount of liquid injected, the liquid will still be distributed relatively uniformly in the circumferential direction after being submerged radially inward for up to several layers of partition walls. Therefore, the rotating balancing device provided by the embodiment of the application has the advantages that the liquid can be rapidly and uniformly distributed in the circumferential direction of the cavity of the rotating body, the balancing response to the load eccentricity is fast, and the clothes treatment time can be effectively shortened; in addition, the liquid can be distributed in the flow channel more uniformly even when the rotation speed of the rotation balancing device is low.

Drawings

Fig. 1 is a schematic structural diagram of a rotating balancing device according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of the rotational balancing apparatus of FIG. 1;

FIG. 3 is a schematic view of a portion of the rotational balancing apparatus shown in FIG. 1;

FIG. 4 is a cross-sectional view of the structure shown in FIG. 3, wherein the cross-sectional position is the same as in FIG. 2;

FIG. 5 is a sectional view taken along the line A-A in FIG. 4;

FIG. 6 is a schematic view of the structure associated with the leftmost first subchamber of FIG. 4;

fig. 7 is a schematic view of the distribution of liquid in the first subchamber of fig. 6, wherein the rotating body rotates in the direction of the arrow;

fig. 8 is a schematic view showing a state of distribution of a liquid in a chamber in the related art in which a partition wall is not provided;

FIG. 9 is a schematic view of a portion of a balancing apparatus according to a second embodiment of the present application;

FIG. 10 is a schematic view of a part of a balancing apparatus according to a third embodiment of the present application;

FIG. 11 is a schematic view of a balance device according to a fourth embodiment of the present application;

FIG. 12 is a schematic view of a part of a balancing apparatus according to a fifth embodiment of the present application;

FIG. 13 is a schematic view of a portion of a balancing device according to a sixth embodiment of the present application;

FIG. 14 is a schematic view of a part of a balancing apparatus according to a seventh embodiment of the present application;

FIG. 15 is a schematic view of a part of a balancing apparatus according to an eighth embodiment of the present application;

FIG. 16 is a schematic view of a part of a balancing apparatus according to a ninth embodiment of the present application;

FIG. 17 is a schematic view of a part of a balancing apparatus according to a tenth embodiment of the present application;

FIG. 18 is a schematic view of a portion of a balancing device according to an eleventh embodiment of the present application;

fig. 19 is a schematic structural view of a laundry treating apparatus according to an embodiment of the present application.

Description of the reference numerals

A rotation balancing device 10; a flow channel 101; a first wall 102; a second wall surface 103; a rotating body 11; an annular body portion 110; a unit main body portion 110'; a top plate 1101; a backplane 1102; a peripheral plate 1103; a frame 1104; an opening 1104 a; a chamber 11 a; a flow passage 11 b; the sub-chamber 11 a'; a partition portion 111; a partition wall 12; a notch 12 a; inner wall surfaces 12b of the partition walls; a through-hole 121; a sub stopper 13; a first gap 130; a second gap 131; a sub-separator 14; an inner barrel 20; an outer cylinder 21; water injection member 22

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

Referring to fig. 19, the laundry treating apparatus includes an outer drum 21, an inner drum 20 and a rotation balancing device 10 (refer to fig. 1), the inner drum 20 is rotatably disposed in the outer drum 21, the inner drum 20 has a rotation axis, the rotation balancing device 10 has a rotation center line, the inner drum 20 rotates synchronously with the rotation balancing device 10, and the rotation balancing device 10 is used for balancing and adjusting the inner drum 20 when a load eccentricity occurs during the rotation of the inner drum 20.

The laundry treating apparatus may be an integration of any one or more of a dryer, a dehydrator, and a washing machine. The rotation center line of the rotation balancing device 10 is parallel to or coincident with the rotation axis of the inner cylinder 20, that is, the rotation balancing device 10 may be disposed coaxially with the inner cylinder 20, or may be disposed slightly eccentrically, which is not limited herein. The rotation center line of the rotation balancing device 10 may be in the vertical direction, for example, the rotation balancing device 10 is suitable for a case of a pulsator washing machine; it may be horizontal, for example, the rotating balancing device 10 is suitable for use in a drum washing machine; but also an oblique direction. And are not intended to be limiting herein.

Referring to fig. 1 and 2, the rotating balance device 10 includes a rotating body 11 and a partition wall 12, a rotation center line of the rotating balance device 10 is a rotation center line of the rotating body 11, and the rotating body 11 rotates around the rotation center line. A plurality of chambers 11a distributed along the circumferential direction are formed in the rotating body 11, and the inner spaces of the chambers 11a are isolated from each other to block the liquid from flowing between the chambers 11a, so that the liquid injection amount of each chamber 11a can be controlled independently according to the load eccentricity degree and the eccentric position of the inner barrel 20; wherein, a partition wall 12 is provided in at least one chamber 11a, the partition wall 12 extends along the circumferential direction of the rotating body 11 to divide the chamber 11a into a plurality of communicating flow passages 101 along the radial direction, the liquid can flow between the plurality of flow passages 101, the inner wall surface 12b of the partition wall 12 faces the rotation center line of the rotating body 11, that is, of two adjacent flow passages 101 divided by the partition wall 12, one of the flow passages 101 is located at the inner side of the partition wall 12 along the radial direction of the rotating body 11, and the other flow passage 101 is located at the outer side of the partition wall 12 along the radial direction of the rotating body 11.

In the rotating balancing device 10 of the present application, after the corresponding chamber 11a is filled with the liquid, in the rotating process of the rotating balancing device 10, please refer to fig. 7, on one hand, the liquid is thrown to the inner wall of the outermost side of the chamber 11a under the action of the centrifugal force, and at this time, the load eccentricity can be greatly balanced, so that the vibration of the clothes processing equipment during the dewatering process can be effectively reduced; on the other hand, due to the steady flow effect of the partition wall 12 on the liquid and the friction effect generated on the liquid, the liquid is uniformly distributed in the circumferential direction in the chamber 11a, the fluctuation of the liquid level is small, and the performance of balancing load eccentricity of the rotating balancing device is greatly improved. Furthermore, depending on the amount of liquid injected, the liquid will still be distributed relatively uniformly in the circumferential direction after flooding radially inward up to the plurality of partition walls 12. Therefore, the rotating balancing device 10 of the embodiment of the present application can rapidly and uniformly distribute the liquid in the circumferential direction of the chamber 11a of the rotating body 11, has a fast response to the balancing of the load eccentricity, and can effectively shorten the laundry processing time; in addition, even in the case of a low rotational speed of the rotation balancing device 10, the liquid can be distributed relatively uniformly in the flow channel 101.

Referring to fig. 8, if the partition wall according to the embodiment of the present application is not provided, when the rotation speed of the rotation balancing device is low, the liquid is concentrated at one position, the fluctuation of the liquid level is large, the vibration of the rotation balancing device itself is large, the noise is also large, the balancing response effect to the load eccentricity is poor, the balancing response time of the rotation balancing device 10 to the load eccentricity is prolonged, and the laundry processing time is further prolonged.

In an embodiment of the present application, the laundry treating apparatus may further include a water filling member 22, and the water filling member 22 may independently control the amount of liquid filling into any one of the chambers 11a during the rotation of the rotary balancing device 10. For example, when the load eccentricity occurs at the first position of the inner tube 20, the injector 22 can inject the liquid into the chamber corresponding to the position opposite to the first position, and the injection amount can be determined according to the load eccentricity. The filler member 22 may be mounted in a suitable location, for example, on an outer barrel or other structure. It should be noted that, in order to make the structure of the clothes processing apparatus compact and facilitate the water injection member 22 to inject water into the chamber 11a, the rotating balance device 10 is disposed at one side of the inner cylinder 20 in the axial direction, and the outer diameter of the rotating body 11 is smaller than or equal to the outer diameter of the inner cylinder 20, so that the rotating balance device does not increase the size of the outer cylinder 21 in the radial direction; in addition, the water injection member 22 may be inserted into a radial inner side of the rotating body 11 to inject water into the chamber 11a, that is, the inner cylinder 20 does not interfere with the water injection process of the water injection member 22.

It should be noted that, the above-mentioned rotating balancing device 10 is disposed on one axial side of the inner cylinder 20, which means that the position of the same rotating balancing device 10 relative to the inner cylinder 20 is one axial side of the inner cylinder 20, rather than being sleeved on the circumferential surface of the inner cylinder 20.

The number of the clothes treatment apparatus configuration rotation balancing devices 10 of the embodiment of the present application is not limited, and may be one or more. Referring to fig. 19, in an embodiment of the present application, the number of the rotating balance devices 10 is two, one of the rotating balance devices 10 is disposed on one axial side of the inner cylinder 20, and the other rotating balance device 10 is disposed on the other axial side of the inner cylinder 20.

Referring to fig. 3 and 5, the chamber 11a is provided with a transfer passage 11b, and the water injection member 22 can inject the liquid into the chamber 11a through the transfer passage 11 b. In the embodiment of the present application, the flow passage 11b is configured as follows: during the rotation of the rotation balancing device 10 at a first rotation speed or higher, the water injection member 22 can inject the liquid into the chamber 11a through the through-flow passage 11 b; during rotation of the rotary counterbalancing means 10 at less than the first rotational speed or when the rotary counterbalancing means 10 is in a stationary condition, liquid in the chamber 11a can exit the chamber 11a through the transfer channel 11 b. That is, the flow passage 11b has a liquid injection function and also a liquid discharge function, so that it is possible to simplify the structure of the rotation balancing device 10. Illustratively, a liquid discharge port may be additionally provided at a suitable position of the chamber 11 a. In order to facilitate the water injection of the water injection member 22, one side of the cavity 11a facing the rotation center line of the rotating body 11 is opened, the opened portion is formed as a flow passage 11b, the flow passage 11b has a large size and extends in the circumferential direction of the rotating body 11, so that the water injection member 22 can facilitate the water injection into the cavity 11 a.

It should be noted that the first rotation speed may be the lowest rotation speed required for rotating the balancing apparatus 10.

In some embodiments, referring to fig. 9-15, the partition wall 12 is circular, that is, the flow channel 101 is substantially in a sector ring shape, the center O of the partition wall 12 is located on the rotation center line of the rotating body 11, and correspondingly, the centers O of the plurality of flow channels 101 are also located on the rotation center line of the rotating body 11, so that the liquid distributed in the flow channel 101 partitioned by the partition wall 12 has better rotation balance. One or more partition walls 12 may be provided.

It can be understood that the arrangement of the plurality of flow channels 101 includes a plurality of cases, wherein one arrangement is as follows: referring to fig. 12-15, the plurality of runners 101 are radially distributed; wherein another mode of arrangement is: referring to fig. 4, a part of the channels 101 of the plurality of channels 101 is distributed along the radial direction, and another part of the channels 101 is distributed along the circumferential direction, that is, the plurality of channels 101 may be distributed on the same circumference at the same time.

The widths of the plurality of flow channels 101 arranged in the radial direction of the rotating body 11 may be equal or unequal. In the case of equal width, when the amount of liquid injected into the chamber 11a is large, the distribution of the liquid in the chamber 11a is relatively uniform. In the case of unequal widths, the case refers to the case where the width of at least one flow channel 101 is unequal to the widths of the other flow channels 101, and please refer to fig. 4, where the width of the flow channel 101 in the radial direction is H, and the maximum value of the widths H in the plurality of flow channels 101 is H_maxMm, minimum value of H_minMm, 1 ≤ H_max/H_min5, that is, the maximum width should not exceed 5 times the minimum width to allow for relative uniformity of liquid distribution.

The minimum rotating speed required by the rotating balancing device 10 is set as n revolutions per minute, and n/H is more than or equal to 5 and less than or equal to 40. That is, the width of each flow channel 101 is related to the lowest rotation speed of the rotating balancing device 10, and the ratio value range can make the rotating balancing device 10 exert better balancing performance. It should be noted that the lowest rotation speed is the rotation speed of the rotating balancing device 10 greater than or equal to the lowest rotation speed, so that the liquid can be balanced by the centrifugal force, otherwise the liquid may be discharged from the chamber 11a by its own weight.

In some embodiments, the number of the flow channels 101 arranged along the radial direction of the rotating body 11 is y, y is greater than or equal to 2 and less than or equal to 11, and the number of the flow channels 101 needs to be controlled in a reasonable range so as to consider the external dimension of the rotating balancing device 10.

In some embodiments, referring to fig. 13 and 14, at least one of the partition walls 12 is formed with at least one gap 12a to divide the partition wall 12 into at least two segments in the circumferential direction, and the liquid in two adjacent channels 101, which are radially arranged and separated by the partition wall 12, can be communicated through the gap 12 a. Further, the central angle corresponding to the notch 12a is γ, γ is greater than or equal to 0.2 ° and less than or equal to 3 °, and the range of the central angle can ensure the liquid flow between the adjacent flow channels 101 and also can ensure the flow stabilizing effect of the partition walls 12.

In some embodiments, referring to fig. 16-18, at least one through hole 121 is formed on the partition wall 12, the liquid in the two adjacent channels 101 partitioned by the partition wall 12 can flow through the through hole 121, and the through hole 121 can also play a role of exhausting air. The shape of the through hole 121 is not limited, and in order to take account of the liquid flowing and the flow stabilizing effect of the partition wall 12, in the embodiment of the application, the through hole 121 is circular, the aperture of the through hole 121 is d, and d is greater than or equal to 1mm and less than or equal to 3 mm. In order to facilitate the timely and efficient circulation of liquid, the number of the through holes 121 is x, and x is more than or equal to 30 and less than or equal to 1000.

In some embodiments, referring to fig. 4, a plurality of sub-chambers 11a ' are separated from at least one chamber 11a and arranged along the circumferential direction of the rotating body 11, the sub-chambers 11a ' are communicated with each other, and the above-mentioned partition wall 12 is disposed in at least one sub-chamber 11a '. The space in the chamber 11a is further divided into sub-chambers 11a 'with smaller space, and the sub-chambers 11 a' are communicated with each other, so that no matter which sub-chamber 11a 'the liquid is injected from, after the rotary balancing device 10 operates for a period of time, the liquid can flow into the rest of the sub-chambers 11 a'. In the subsequent rotation process, the liquid can be uniformly distributed in each sub-chamber 11 a', and the liquid fluctuation is small; and the flow resistance between the sub-chambers 11a 'is increased, so that when the rotating body 11 rotates to different directions, the flow of the liquid between the adjacent sub-chambers 11 a' is greatly reduced, and the balance performance is further improved.

Referring to fig. 4 and 6, the chamber 11a has a first wall 102 and a second wall 103 extending in a radial direction of the rotating body 11, and the partition wall 12 is disposed between the first wall 102 and the second wall 103. The partition wall 12 includes a head end portion and a tail end portion which are oppositely disposed in the rotation direction of the rotating body 11; a first space a1 is formed between the first end of at least one partition wall 12 along the circumferential direction of the rotating body 11 and the first wall surface 102, the first space a1 allows the liquid to flow through, and the liquid in the two adjacent flow passages 101 partitioned by the partition wall 12 can flow through the first space a 1. Furthermore, the central angle corresponding to the first interval a1 is theta, theta is more than or equal to 0.1 degrees and less than or equal to 5 degrees, and the numerical range of theta can ensure that liquid flows through and can ensure that the partition wall 12 has a good flow stabilizing effect.

With continued reference to fig. 4 and fig. 6, a second space a2 is formed between the end of at least one partition wall 12 and the second wall 103, and similarly, the second space a2 allows the liquid to flow through, and the liquid in two adjacent flow channels 101 separated by the partition wall 12 can flow through the second space a 2. Furthermore, the central angle corresponding to the second interval a2 is beta, beta is more than or equal to 0.1 degrees and less than or equal to 5 degrees, and the numerical range of beta can ensure that liquid flows through and can ensure that the partition wall 12 has a good flow stabilizing effect.

The overall structure of the rotating body 11 is not limited as long as any of the chambers 11a can be formed.

Referring to fig. 3 and 5, the rotating body 11 illustratively includes an annular main body 110 and a plurality of partitions 111 located in the annular main body 110, wherein the partitions 111 are arranged at intervals along a circumferential direction of the annular main body 110 to partition an inner space of the annular main body 110 into a plurality of the above-mentioned chambers 11 a. The annular main body 110 may be an integrally formed structure, or may be a separate structure and connected together by a fixed connection manner. The partition 111 may have any suitable shape, for example, in the embodiment of the present application, the partition 111 has a plate shape, and the inner wall of the annular body 110 is connected to the periphery of the partition 111.

Referring to fig. 5, the annular main body 110 includes a top plate 1101, a bottom plate 1102, and a peripheral plate 1103 located radially outside the rotating body 11, the top plate 1101, the bottom plate 1102, and the peripheral plate 1103 together enclose an annular space, and each chamber 11a is a part of the annular space. The radial inner side of the annular space is open, the water injection member 22 can inject liquid into each cavity 11a from the open position, for example, the water injection member 22 keeps still, the water injection port of the water injection member 22 is aligned with the open position, in the rotating process of the rotating body 11, when the rotating body 11 rotates until the water injection port of the water injection member 22 corresponds to the cavity 11a to be injected, the water injection member 22 can inject water into the corresponding cavity 11a, the open position can prolong the water injection time of the water injection member 22 into the corresponding cavity 11a, and can facilitate the water injection of the water injection member 22 into the cavity 11 a. That is, in the embodiment of the present application, the opening may be the above-mentioned flow passage.

Further, referring to fig. 5, the annular main body 110 further includes a frame 1104 disposed at the opening, the edge of the frame 1104 is connected to the top plate 1101, the bottom plate 1102 and the two partitions 111, an opening 1104a is formed in a middle region of the frame 1104, the water injection member 22 can inject water into the corresponding chamber 11a from the opening 1104a, and in this embodiment, the opening 1104a is formed as the above-mentioned flow passage 11 b. The edge of the frame 1104 can block the injected liquid at the initial stage of the injection of the water injection member 22, thereby reducing the amount of the liquid splashed out of the chamber 11a and improving the injection effect. It is understood that the frame 1104 may be an integral structure or a split structure.

Further, referring to fig. 4, a first gap 130 for liquid to flow through is formed between the outer side of the sub-stopper 13 in the radial direction of the rotating body 11 and the peripheral plate 1103, the liquid can flow through the first gap 130 along the inner wall of the peripheral plate 1103, and the liquid can flow into or out of the adjacent sub-chamber 11 a' through the first gap 130. During the rotation of the rotating body 11, the liquid is first collected to the inner wall of the peripheral plate 1103 by the centrifugal force, and therefore, the first gap 130 can allow the liquid to flow between the two adjacent sub-chambers 11 a' through the first gap 130 no matter the amount of the liquid is large or small.

Referring to fig. 4, in a projection in a plane perpendicular to the rotation center line of the rotating body 11, the radially inner side of the sub stopper 13 is located in the annular main body 110, that is, a second gap 131 is formed between the radially inner edge of the sub stopper 13 and the inner edge of the annular main body 110. When the water injection member 22 injects water into the chamber 11a, the second gap 131 can reduce or avoid blocking the liquid injected by the water injection member 22, so as to improve the liquid injection efficiency.

Referring to fig. 9 and 10, in some embodiments, the rotating balancing device 10 further includes a sub-partition 14 disposed in the flow channel 101, wherein the sub-partition 14 is capable of at least partially blocking the flow of the liquid. That is, the sub-partition 14 can further increase the flow resistance of the liquid in the circumferential direction, increasing the uniformity of distribution of the liquid in the chamber 11 a. In the present embodiment, the sub-stopper 13 is substantially plate-shaped, and the plane of the sub-stopper 13 is substantially along the radial direction of the rotating body 11 to partially block the flow of the liquid in the circumferential direction.

Illustratively, in the case where a plurality of partition walls 12 are arranged in the radial direction of the rotating body 11, the sub-partition 14 is provided between the adjacent two partition walls 12, so that the sub-partition 14 can prevent the flow of the liquid along the inner wall of the radially outer side of the rotating body 11, that is, along the inner wall of the peripheral plate 1103, and prevent the flow of the liquid between the adjacent two sub-chambers 11 a'.

The rotary balance device 10 of the various embodiments of the present application is described below.

Fig. 1 and 2 are schematic structural views of a balancing apparatus according to an embodiment of the present application;

fig. 3-18 are partial schematic structural views of a rotary balancing device according to an embodiment of the present application.

The first embodiment is as follows:

referring to fig. 1 to 7, three separating portions 111 are disposed in the space corresponding to the annular main body portion 110, and it is understood that the number of the separating portions 111 may be any. The three partitions 111 partition the annular space in the annular main body 110 into three independent chambers 11 a.

A partition wall 12 is provided in each chamber 11a, which enables the rotation balancing device 10 to have a good balancing performance.

A plurality of sub-stoppers 13 are disposed in each chamber 11a, so that each chamber 11a is divided into a plurality of sub-chambers 11a ', and a plurality of partition walls 12 are disposed in each sub-chamber 11 a'. For convenience of description, the subchamber 11a 'corresponding to the partition 111 at the circumferential head end is referred to as a first subchamber, the subchamber 11 a' corresponding to the partition 111 at the circumferential end is referred to as a second subchamber, and the subchamber interposed between the first subchamber 11a 'and the second subchamber 11 a' is referred to as a third subchamber.

It is understood that the first wall 102 may be a surface of the partition 111, or a surface of the sub-stopper 13; similarly, the second wall surface 103 may be a surface of the partition 111 or a surface of the sub stopper 13.

Fig. 6 is a schematic diagram of the structure of the first sub-chamber, where the inner wall of the partition 111 is the first wall 102, the inner wall of the corresponding sub-stopper 13 is the second wall 103, a first interval a1 is formed between the circumferential head end of the partition wall 12 and the inner wall of the partition 111, and the circular angle corresponding to the first interval a1 is θ. A second interval a2 is formed between the end of the partition wall 12 in the circumferential direction and the inner wall of the sub-stopper 13, and the second interval a2 corresponds to a central angle β.

Referring to fig. 4, in the second sub-chamber, the inner wall of the partition 111 is the second wall 103, the inner wall of the corresponding sub-stopper 13 is the first wall 102, a first interval a1 is formed between the circumferential head end of the partition 12 and the inner wall of the sub-stopper 13, and a second interval a2 is formed between the end of the partition 12 and the inner wall of the partition 111.

In the third subchamber, the inner wall of one sub-stopper 13 close to the circumferential head end is a first wall surface 102, the inner wall of the other sub-stopper 13 is a second wall surface 103, a first interval a1 is formed between the head end of the partition wall 12 and the inner wall of one of the sub-stoppers 13, and a second interval a2 is formed between the tail end of the partition wall 12 and the inner wall of the other sub-stopper 13.

The adjacent two flow passages 101 are communicated with each other through the first interval a1 and the second interval a 2.

Example two:

referring to fig. 9, the structure of the second embodiment is substantially the same as that of the first embodiment, and the main difference is that: the rotating balance device 10 includes a plurality of sub-partitions 14, the sub-partitions 14 are disposed between two adjacent partition walls, and the plurality of sub-partitions 14 are not in the same plane.

Example three:

referring to fig. 10, the structure of the third embodiment is substantially the same as that of the second embodiment, and the main difference is as follows: the plurality of sub-diaphragms 14 are located in the same plane.

Example four:

referring to fig. 11, the structure of the fourth embodiment is substantially the same as that of the first embodiment, and the main difference is that: the end of the partition wall 12 extends to the second wall surface 103, and in this embodiment, a first gap a1 is formed between the head end of the partition wall 12 and the first wall surface 102, and no gap, that is, β is 0 °, is formed between the end of the partition wall 12 and the second wall surface 103.

Example five:

referring to fig. 12, the fifth embodiment has a structure substantially the same as that of the first embodiment, and mainly differs therefrom in that: the leading end of the partition wall 12 extends to the first wall surface 102, and in this embodiment, no space is formed between the leading end of the partition wall 12 and the first wall surface 102, that is, θ is 0 °, and a second space a2 is formed between the trailing end of the partition wall 12 and the second wall surface 103.

Example six:

referring to fig. 13, the structure of the sixth embodiment is substantially the same as that of the first embodiment, and the main difference is that: no sub-stop is provided in the chamber 11 a. Wherein the head end of the partial partition wall 12 extends to the first wall surface 102 and the tail end is spaced from the second wall surface 103 by a second spacing a 2; wherein a first space a1 is formed between the head end of the another part of the partition wall 12 and the first wall surface 102 and the tail end extends to the second wall surface 103. Each partition wall 12 is formed with notches 12a, and the notches 12a of different partition walls correspond to different central angles.

It is to be understood that in this sixth embodiment, the partition wall 12 may not be provided with the notch 12 a. The head end of all the partition walls 12 may extend to the first wall surface 102, and the second space a2 may be formed between the tail end and the second wall surface 103; it is also possible that the first space a1 is formed between the head end of all the partition walls 12 and the first wall surface 102 and the tail end extends to the second wall surface 103.

Example seven:

referring to fig. 14, the structure of the seventh embodiment is substantially the same as that of the sixth embodiment, and the main difference is that: each partition wall 12 is formed with a plurality of notches 12a, and the notches 12a corresponding to the plurality of partition walls 12 correspond to the same central angle.

Example eight:

referring to fig. 15, the structure of the eighth embodiment is substantially the same as that of the seventh embodiment, and the main difference is that: the partition wall 12 is not provided with the above-described notch 12 a.

Example nine:

referring to fig. 16, the structure of the ninth embodiment is substantially the same as that of the eighth embodiment, and the main difference is that: the first end of the partition wall 12 extends to the first wall 102, and the second end extends to the second wall 103, wherein a plurality of through holes 121 are formed on the partition wall 12. When the rotating balancing device 10 rotates at a speed lower than the first speed, the liquid can be discharged from the through hole 121 by gravity. In the present embodiment, the plurality of through holes 121 are arranged along the axial direction of the partition wall 12.

It is understood that the through hole 121 may be formed in the partition wall 12 in a case where the first space a1 is formed between the first end of the partition wall 12 and the first wall 102 and/or the second space a2 is formed between the second end of the partition wall 12 and the second wall 103.

Example ten:

referring to fig. 17, the structure of the tenth embodiment is substantially the same as that of the ninth embodiment, and the main difference is that: the plurality of through holes 121 are arranged along the circumferential direction of the partition wall 12.

Example eleven:

referring to fig. 18, the structure of the tenth embodiment is substantially the same as that of the ninth embodiment, and the main difference is that: the number of the through holes 121 on the partition wall 12 is much larger than that of the through holes 121 in the ninth embodiment, and the aperture of the through holes 121 in the present embodiment is smaller than that of the through holes 121 in the ninth embodiment. In this embodiment, the plurality of through holes 121 can satisfy that liquid flows between two adjacent runners 101, and the liquid can rapidly flow through the plurality of through holes 121 under the centrifugal force during liquid injection, and then flow into the outermost runner 101; when discharging, the liquid can be discharged out of the chamber 11a through the through hole 121 by its own weight.

The various embodiments/implementations provided herein may be combined with each other without contradiction.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rotary balance device, comprising:

the rotating body is provided with a rotating center line and rotates around the rotating center line, a plurality of chambers distributed along the circumferential direction are formed in the rotating body, and the inner spaces of the chambers are isolated from each other so as to block liquid from flowing among the chambers;

the partition wall is arranged in at least one chamber, the partition wall extends along the circumferential direction of the rotating body to divide the chamber into a plurality of flow passages along the radial direction, the flow passages are communicated, and the inner wall surface of the partition wall faces to the rotating center line of the rotating body;

the chamber is provided with a flow passage, the flow passage is constructed as follows: when the rotating body rotates at a speed greater than or equal to a first rotating speed, liquid can be injected into the cavity through the overflowing channel, and when the rotating body rotates at a speed less than the first rotating speed or the rotating body is in a static condition, the liquid in the cavity can be discharged out of the cavity through the overflowing channel.

2. The rotating balance device of claim 1, wherein the partition wall is arc-shaped, and the center of the circle corresponding to the partition wall is located on the rotation center line of the rotating body.

3. The rotational balancing apparatus of claim 1, wherein at least one of the partition walls is formed with at least one notch to divide the partition wall into at least two segments in a circumferential direction.

4. The rotational balance device as set forth in claim 3, wherein the partition wall is in the shape of a circular arc, and the central angle corresponding to the notch is γ, and γ is 0.2 ° or more and 3 ° or less.

5. The rotary balance device of claim 1, wherein a plurality of the flow passages are equal in width in a radial direction of the rotating body; and/or the number of the flow passages distributed along the radial direction of the rotating body is y, and y is more than or equal to 2 and less than or equal to 11.

6. The rotating balancing device of claim 1, wherein the width of the flow channel along the radial direction of the rotating body is H mm, the minimum rotating speed required by the rotating balancing device is n revolutions per minute, and n/H is more than or equal to 5 and less than or equal to 40; and/or the maximum value of H in the width H of the plurality of flow passages along the radial direction of the rotating body is H_maxMm, minimum value of H is H_minMm, 1 ≤ H_max/H_min≤5。

7. The rotational balance apparatus of claim 1, wherein at least one of the chambers is partitioned into a plurality of sub-chambers arranged along a circumferential direction of the rotating body, the sub-chambers are communicated, and the partition wall is disposed in at least one of the sub-chambers.

8. The rotational balancing apparatus of claim 1, wherein the chamber has a first wall surface and a second wall surface extending in a radial direction of the rotating body, the partition wall is disposed between the first wall surface and the second wall surface, and the partition wall includes a head end portion and a tail end portion disposed opposite to each other in a rotational direction of the rotating body;

a first space is formed between the head end part of at least one partition wall and the first wall surface; and/or a second interval is formed between the tail end part of at least one partition wall and the second wall surface.

9. The rotational balancing apparatus of claim 8, wherein the partition wall is arc-shaped; under the condition that the first interval is formed between the head end part of the partition wall and the first wall surface, the central angle corresponding to the first interval is theta, and theta is more than or equal to 0.1 degree and less than or equal to 5 degrees; and/or under the condition that a second interval is formed between the tail end part of the partition wall and the second wall surface, the central angle corresponding to the second interval is beta, and the beta is more than or equal to 0.1 degrees and less than or equal to 5 degrees.

10. The rotating balancing device of claim 1, comprising a sub-diaphragm disposed in the flow passage, the sub-diaphragm extending in a radial direction of the rotating body; the partition walls are arranged along the radial direction of the rotating body, and the sub-partition plates are arranged between every two adjacent partition walls.

11. The rotational balance apparatus as set forth in claim 1, wherein at least one of said partition walls is formed with at least one through hole penetrating said partition wall.

12. The rotational balancing apparatus of claim 11,

the through hole is circular, the aperture of the through hole is d, and d is more than or equal to 1mm and less than or equal to 3 mm;

and/or the number of the through holes on one partition wall is x, wherein x is more than or equal to 30 and less than or equal to 1000.

13. A rotary counterbalancing mechanism as claimed in any one of claims 1 to 12, wherein the rotary body comprises an annular main body portion and a plurality of partitions located within the annular main body portion, the plurality of partitions being spaced circumferentially of the annular main body portion to divide the interior space of the annular main body portion into a plurality of said chambers.

14. The rotary counterbalancing mechanism as recited in claim 13, wherein the annular body portion comprises a top plate, a bottom plate, and a peripheral plate radially outward of the rotary body, the top plate, the bottom plate, and the peripheral plate collectively defining an annular space, each of the chambers being a portion of the annular space.

15. The rotary counterbalancing mechanism as recited in claim 14, wherein the annular space is open along a radially inner side of the rotating body; the annular main body part further comprises a frame body, the frame body is arranged at the opening position of the annular space, an opening is formed in the middle area of the frame body, and the edge of the frame body is connected with the top plate, the bottom plate and the separating part.

16. The rotational balancing apparatus of claim 15, comprising at least one sub-barrier disposed within the chamber, the sub-barrier separating the chamber into a plurality of communicating sub-chambers arranged circumferentially.

17. The rotational balancing apparatus according to claim 16, wherein the sub-stopper is formed with a first gap for the liquid to flow through between an outer side in a radial direction of the rotating body and the peripheral plate; and/or a second gap is formed between the inner side of the sub stopper along the radial direction of the rotating body and the inner wall of the frame body.

18. A laundry treating apparatus comprising an outer drum, an inner drum and a rotary balancing device according to any one of claims 1 to 17; the inner cylinder is rotationally arranged in the outer cylinder and is provided with a rotation axis; the rotation center line of the rotating body is parallel to or coincident with the rotation axis of the inner cylinder, and the rotation balancing device and the inner cylinder rotate synchronously.

19. The apparatus of claim 18, comprising a water injection member that independently controls the amount of liquid injected into any of the chambers during rotation of the drum.

20. The apparatus of claim 18, wherein the rotation balancing device is disposed at one axial side of the drum, and an outer diameter of the rotating body is smaller than or equal to an outer diameter of the drum.