CN109853190B

CN109853190B - Washing barrel assembly and barrel-in-barrel washing machine

Info

Publication number: CN109853190B
Application number: CN201910176029.8A
Authority: CN
Inventors: 周丑国; 余永刚; 李强; 苑林枫; 于百乐
Original assignee: TCL Home Appliances Hefei Co Ltd
Current assignee: TCL Home Appliances Hefei Co Ltd
Priority date: 2019-03-08
Filing date: 2019-03-08
Publication date: 2020-10-23
Anticipated expiration: 2039-03-08
Also published as: CN109853190A

Abstract

A washing barrel assembly and a barrel-in-barrel washing machine, wherein the washing barrel assembly comprises a washing barrel and a passive device; the passive device comprises a shell, a first detection piece and a second detection piece, wherein the first detection piece and the second detection piece are both arranged in the shell, one of the first detection piece and the second detection piece is a magnetic piece, the other one of the first detection piece and the second detection piece is an induction module, and the first detection piece and the second detection piece generate relative movement and generate induction electric energy when the shell moves towards a preset direction; the housing is connected with the washing tub. According to the washing machine and the washing barrel assembly thereof, whether the washing barrel is installed in the washing machine or not can be automatically judged by controlling the washing barrel to rotate through the washing machine and detecting whether the passive device generates an electric signal or not, so that a washing program whether the washing barrel is used for washing or not can be automatically selected under the condition that whether the washing barrel exists or not can be automatically judged through the washing machine, and meanwhile, the washing error caused by the selection program error can be avoided.

Description

Washing barrel assembly and barrel-in-barrel washing machine

Technical Field

The invention relates to the technical field of washing machines, in particular to a washing barrel assembly and a barrel-in-barrel washing machine.

Background

With the development of the washing machine industry, the washing machine has become a quite intelligent household appliance. Along with the recent higher and higher requirements of people on health energy conservation, the higher and higher requirements of people on health energy conservation of the washing machine are also increased. In order to meet the requirements of the current society, a bucket-in-bucket washing machine with a small bucket with smaller volume is arranged in a large bucket of the washing machine in the market, clothes can be classified and washed separately by adopting the bucket-in-bucket washing machine, and when the amount of the clothes is less, the small bucket can be selected for washing, so that the aims of health and energy conservation are fulfilled. The tub-in-tub washing machine can select keg washing or vat washing respectively through different washing programs, and when the vat washing is needed, the keg needs to be detached, and when the keg is needed, the keg needs to be installed in the washing machine.

However, the current barrel-in-barrel washing machine has a simple structural design, and needs to manually select a washing program using a large barrel or a washing program using a small barrel, which is very inconvenient, and people may select a wrong program to cause washing errors.

Disclosure of Invention

In view of the above, it is necessary to provide a washing tub assembly and a tub-in-tub washing machine in order to solve the problem that the current tub-in-tub washing machine requires manual selection of a washing course using a large tub or a washing course using a small tub.

A washing tub assembly comprising a washing tub and a passive device connected to the washing tub; the passive device comprises a shell, a first detection piece and a second detection piece, wherein the first detection piece and the second detection piece are both arranged in the shell, one of the first detection piece and the second detection piece is a magnetic piece, the other one of the first detection piece and the second detection piece is an induction module, and the first detection piece and the second detection piece generate relative movement and generate induction electric energy when the shell moves towards a preset direction; the housing is connected with the washing tub.

In one embodiment, the bottom of the washing tub is provided with a mounting groove, the mounting groove is arranged adjacent to the edge of the washing tub, and the passive device is fixedly arranged in the mounting groove.

In one embodiment, the casing includes a first sub-casing and a second sub-casing which are integrally formed, the inside of the first sub-casing and the inside of the second sub-casing communicate with each other, and the cross-sectional area of the first sub-casing is greater than that of the second sub-casing, wherein the first sub-casing is located at a smaller distance from the center of the bottom of the washing tub than the second sub-casing.

In one embodiment, two ends of the housing are respectively provided with an installation part, two fixing parts are arranged in the installation groove, and each installation part is correspondingly connected with one fixing part.

In one embodiment, one of the mounting portions is disposed adjacent an edge of the housing.

In one embodiment, a supporting portion is further arranged in the mounting groove, the supporting portion is located between the two fixing portions, the shell is arranged on the supporting portion, and the shape of the surface, abutted to the shell, of the supporting portion is matched with the shape of the surface, abutted to the supporting portion, of the shell.

In one embodiment, the support portion includes a plurality of support ribs, each support rib is located between two of the fixing portions, and a shape of a surface of each support rib abutting against the housing matches a shape of a surface of the housing abutting against the support member, and the housing is disposed on each support rib.

In one embodiment, the mounting groove upper cover is provided with a protective cover.

In one embodiment, the protective cover is detachably connected to the washing tub.

A tub-in-tub washing machine comprising a washing tub assembly as described in any of the above embodiments

The passive device is arranged on the washing barrel, when the washing machine generates an instruction for controlling the washing barrel to move towards the preset direction, the passive device is fixedly arranged on the washing barrel, if the washing barrel is placed in the washing machine, the washing barrel can drive the shell to move towards the preset direction so that the induction module and the magnetic part in the shell generate relative movement, and therefore the induction module generates an electric signal and can be received by the receiving device, namely if the receiving device receives the electric signal, the washing barrel is judged to be installed in the washing machine, otherwise, if the electric signal is not received, the washing barrel is judged not to be placed in the washing machine, therefore, the passive device is arranged on the washing barrel, and the washing machine generates an instruction for controlling the washing barrel to rotate so as to detect whether the passive device generates the electric signal to automatically judge whether the washing barrel is installed in the washing machine or not, therefore, the washing program whether to use the washing barrel for washing can be automatically selected under the condition that whether the washing barrel exists can be automatically judged by the washing machine, and meanwhile, the washing error caused by the error of the selected program can also be avoided. For example, when the washing tub is a keg of a tub-in-tub washing machine, when the washing machine automatically judges that there is a keg, a keg washing program for washing using the keg is automatically selected, and when the washing machine automatically judges that there is no keg, a tub washing program for washing using the tub, that is, a regular washing program, is automatically selected. Whether the washing barrel is placed in the washing machine or not is detected by using the passive device, the passive device is not required to be connected into an external power supply, and the structural design is simple.

Drawings

Fig. 1 is a perspective view of a passive device according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a passive device according to an embodiment of the present application in one direction;

FIG. 3 is a cross-sectional view A-A of the passive device of FIG. 2;

FIG. 4 is a cross-sectional view of a passive device according to another embodiment of the present application;

FIG. 5 is an exploded view of a passive device according to an embodiment of the present application;

FIG. 6 is a partially exploded view of a passive device according to an embodiment of the present application;

FIG. 7 is a partially exploded view of a passive device according to an embodiment of the present application;

FIG. 8 is a perspective view of a washing tub assembly according to an embodiment of the present application;

fig. 9 is an exploded schematic view of the washing tub assembly shown in fig. 8;

FIG. 10 is an enlarged schematic view at A of FIG. 9;

fig. 11 is a schematic structural view of a washing tub assembly according to another embodiment of the present application.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature. In the present invention, "upper" and "lower" merely indicate relative positions, and do not indicate absolute positions.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In one embodiment, the present application provides a passive device comprising: the casing, first detection piece and second detection piece all set up in the casing, wherein, one of them is the magnetism piece in first detection piece and the second detection piece, another one in first detection piece and the second detection piece is the response module, first detection piece with the second detection piece is when the casing is towards the motion of predetermineeing the direction production relative motion and produce the induction electric energy.

It can be understood that the induction module and the magnetic member generate relative movement when the housing moves towards a preset direction, and the induction module generates induction power. In one embodiment, the induction module is fixedly arranged in the shell, and the magnetic member moves in the shell when the shell moves towards a preset direction so as to enable the induction module and the magnetic member to generate relative movement and enable the induction module to generate induction electric energy; in another embodiment, the magnetic member is fixedly disposed in the housing, and the induction module moves in the housing when the housing moves towards a predetermined direction, so that the induction module and the magnetic member move relatively to each other and generate induction power. That is, the magnetic member generates a magnetic field, and the induction module includes a closed circuit, in an embodiment, the closed circuit is fixedly disposed in the housing, and the magnetic member moves in the housing when the housing moves toward a predetermined direction, so that a part of the conductor of the closed circuit cuts the magnetic induction lines of the magnetic member to generate induction power; in another embodiment, the magnetic member is fixedly disposed in the housing, and the closed circuit moves in the housing when the housing moves towards a preset direction, so that a part of the conductor of the closed circuit cuts the magnetic induction line of the magnetic member to generate induction power. In an embodiment, the closed circuit comprises an induction coil, i.e. the induction module comprises an induction coil.

In order to facilitate understanding of the passive device of the present application, the passive device of the present application is further described below with reference to the accompanying drawings.

In one embodiment, as shown in fig. 1, 2 and 3, the passive device 10 includes: the detection device comprises a shell 100, a first detection piece 200 and a second detection piece 300, wherein the first detection piece 200 and the second detection piece 300 are arranged in the shell 100. One of the first detecting member 200 and the second detecting member 300 is a magnetic member, the other of the first detecting member 200 and the second detecting member 300 is an induction module, and the first detecting member 200 and the second detecting member 300 generate relative movement and generate induction power when the housing 100 moves towards a predetermined direction. It can be understood that the preset direction is a moving direction of the housing which can enable the sensing module and the magnetic member to generate relative movement and generate sensing electric energy, that is, when the housing moves towards the preset direction, the first detecting member and the second detecting member generate relative movement, so that the sensing module in the first detecting member and the second detecting member generates sensing electric energy.

In one embodiment, one of the first detecting member and the second detecting member is fixedly disposed in the housing, and the other of the first detecting member and the second detecting member is movably disposed in the housing. Thus, when the housing moves towards the preset direction, one of the first detection member and the second detection member moves in the housing to generate relative movement with the other. In one embodiment, the first detecting member is fixedly disposed in the housing, and the second detecting member is movably disposed in the housing; in another embodiment, the second detecting member is fixedly arranged in the housing, and the first detecting member is movably arranged in the housing; preferably, the first detection piece is movably arranged in the shell, and the second detection piece is fixedly arranged in the shell.

In one embodiment, the first detecting member is a magnetic member, and the second detecting member is an induction module. In another embodiment, the first detecting member is an induction module, and the second detecting member is a magnetic member. Preferably, the first detection piece is a magnetic piece, the second detection piece is an induction module, the magnetic piece is movably arranged in the shell, and the induction module is fixedly arranged in the shell. In an embodiment, the induction module comprises an induction coil. In one embodiment, the magnetic member comprises a magnet. In one embodiment, the induction coil is annular in shape, and the magnetic member is strip-shaped. In another embodiment, the induction coil is annular in shape and the magnetic member is also annular in shape.

In one embodiment, the magnetic member moves in the housing when the housing moves towards a preset direction to generate relative movement between the induction module and the magnetic member, so that the magnetic flux passing through the induction module is changed to enable the induction module to generate an electric signal; in another embodiment, the induction module moves in the housing when the housing moves towards a preset direction to generate relative movement between the induction module and the magnetic member, so that the magnetic flux passing through the induction module is changed to enable the induction module to generate an electric signal.

In the passive device 10, the first detecting element 200 and the second detecting element 300 are disposed in the housing 100, wherein one of the first detecting element 200 and the second detecting element 300 is a magnetic element, the other of the first detecting element 200 and the second detecting element 300 is an induction module, and the first detecting element 200 and the second detecting element 300 can generate relative motion and generate induction power when the housing 100, that is, the whole passive device 10, moves towards a preset direction, so that the induction module and the magnetic element in the housing 100 can generate relative motion by controlling the housing 100, that is, the whole passive device 10, to move towards the preset direction, and thus, magnetic flux passing through the induction module is changed, so that the induction module can generate an electric signal. When the passive device 10 is applied to a washing barrel, the passive device 10 is fixed on the washing barrel of a washing machine, when the washing machine generates an instruction for controlling the washing barrel to move towards a preset direction, because the passive device 10 is fixedly installed on the washing barrel, if the washing barrel is placed in the washing machine, the washing barrel can drive the shell 100 to move towards the preset direction, so that the induction module and the magnetic part in the shell 100 generate relative movement, and the induction module generates an electric signal and can be received by a receiving device, namely if the receiving device receives the electric signal, the washing barrel is determined to be installed in the washing machine, otherwise, if the electric signal is not received, the washing barrel is determined not to be placed in the washing machine, therefore, whether the washing barrel is installed in the washing machine can be automatically determined by installing the passive device on the washing barrel and enabling the washing machine to generate an instruction for controlling the washing barrel to rotate so as to detect whether the, therefore, the washing program whether to use the washing barrel for washing can be automatically selected under the condition that whether the washing barrel exists can be automatically judged by the washing machine, and meanwhile, the washing error caused by the error of the selected program can also be avoided. For example, when the washing tub is a keg of a tub-in-tub washing machine, when the washing machine automatically judges that there is a keg, a keg washing program for washing using the keg is automatically selected, and when the washing machine automatically judges that there is no keg, a tub washing program for washing using the tub, that is, a regular washing program, is automatically selected. Whether the washing barrel is placed in the washing machine or not is detected by using the passive device, the passive device is not required to be connected into an external power supply, and the structural design is simple.

In an embodiment, the passive device is intended to be arranged on a washing tub of a washing machine. In an embodiment, the washing machine is a tub-in-tub washing machine having a tub and a keg, the passive device for being disposed on the keg of the tub-in-tub washing machine. In this way, by providing the passive device on the washing tub such as a keg, it is possible to detect whether the washing tub such as a keg is placed on the washing machine by the passive device.

In order to facilitate the mounting of the passive device on other components, in one embodiment, as shown in fig. 1, a mounting portion 130 is further disposed outside the housing 100. The mounting part is used for mounting the passive device on other parts of a washing barrel and the like of the washing machine. In one embodiment, the mounting portion is adapted to be removably coupled to other components of a washing machine, such as a washing tub. Therefore, the passive device can be conveniently detached or installed on other devices such as a washing barrel of the washing machine. In one embodiment, the mounting portion is used for being plugged with other components such as a washing barrel of a washing machine, in one embodiment, the mounting portion is used for being clamped with other components such as the washing barrel of the washing machine, and in one embodiment, the mounting portion is used for being screwed with other components such as the washing barrel of the washing machine.

In this embodiment, as shown in fig. 1, the mounting portion 130 is opened with a mounting hole 103. The mounting portion 130 is used to mount the passive device to other components of the washing machine, such as a washing tub, through the mounting hole 103. In one embodiment, the mounting portion 130 is screwed through the mounting hole 103 to mount the passive device on other components such as a washing tub of a washing machine. In this embodiment, the number of the mounting portions 130 is two, and the two mounting portions 130 are respectively located at two ends of the housing 100. In this embodiment, at least one of the mounting portions 130 is located at an end of the housing 100 and is disposed adjacent to an edge of the housing 100. In this way, the mounting portion disposed adjacent to the edge of the housing can avoid blocking the induction module and the magnetic member from entering from the end of the housing to be received in the housing. In this embodiment, the mounting holes are respectively opened in the mounting portions.

In one embodiment, as shown in fig. 2 and 3, the housing 100 has a hollow structure, and in this embodiment, the housing 100 has a cylindrical hollow structure, that is, the housing 100 has a cylindrical shape. In this embodiment, the housing 100 has a sealed accommodating cavity 401, and the first detecting member 200 and the second detecting member 300 are both disposed in the accommodating cavity 401. Like this, the intracavity can be waterproof promptly to the inside of casing is acceptd, avoids first detection piece and second to detect a trouble of meeting water, is fit for using in the washing machine. In one embodiment, the cross section of the accommodating cavity is circular.

In order to facilitate the installation of the housing on the washing tub, in one embodiment, as shown in fig. 1 and 3, the housing 100 includes a first sub-housing 111 and a second sub-housing 112 integrally formed, the interior of the first sub-housing 111 and the interior of the second sub-housing 112 communicate with each other, and the cross-sectional area of the first sub-housing 111 is larger than that of the second sub-housing 112. In an embodiment, the first sub-housing 111 and the second sub-housing 112 each have a cylindrical hollow structure, and the diameter of the first sub-housing 111 is larger than that of the second sub-housing 112. It can be understood that the housing is composed of two sub-housings with different cross-sectional areas, the cylinder with a larger cross-sectional area, the inner space can be set to be larger and can be used for fixedly or movably setting the first detection piece and the second detection piece, the cylinder with a smaller diameter is generally set to be smaller and can be used for movably setting one of the first detection piece and the second detection piece, but when the passive device is fixed at the bottom of the washing barrel, because the bottom of the washing barrel is circular, and the central axis of the housing is linear, the first sub-housing with a larger cross-sectional area can be close to the center of the bottom, the second sub-housing with a smaller cross-sectional area is close to the edge of the bottom, and the second sub-housing gives way to the edge of the bottom of the washing barrel, so that the housing can be more conveniently arranged on the washing barrel.

In order to facilitate the arrangement of the first detecting member and the second detecting member in the housing and facilitate maintenance, in one embodiment, as shown in fig. 3, the housing 100 has a receiving cavity 401, one end of the receiving cavity 401 is opened with a first opening 101, the first detecting member 200 and the second detecting member 300 are both arranged in the receiving cavity 401, and the first opening 101 is covered with a first sealing cover 430, that is, the first sealing cover 430 seals the first opening 101. In one embodiment, the first sealing cover 430 seals the first opening 101 by a sealing ring. In this way, the first opening is formed in one end of the accommodating cavity, so that the first detection piece and the second detection piece can be placed in and arranged in the shell from the first opening, and when the first detection piece and the second detection piece need to be maintained, the first sealing cover can be opened, and the first detection piece and the second detection piece in the accommodating cavity can be taken out through the first opening for maintenance.

In one embodiment, the sealing cap is removably attached to the housing. In one embodiment, the sealing cap is in threaded engagement with the housing; in one embodiment, the sealing cover is inserted into the shell; in one embodiment, the sealing cover is clamped with the shell.

In one embodiment, the first sub-housing has a first sub-housing cavity, the second sub-housing has a second sub-housing cavity, wherein a cross-sectional area of the first sub-housing cavity is larger than a cross-sectional area of the second sub-housing cavity, the first sub-housing cavity is communicated with the second sub-housing cavity to form a housing cavity, and a first opening is formed at an end of the first sub-housing cavity away from the second sub-housing cavity. Like this, through seting up first opening at the tip that first son received the chamber, open area is bigger, more conveniently puts into first detection piece and second detection piece from the opening.

In one embodiment, the mounting portion disposed adjacent to the first opening is located at an edge of the housing. It will be appreciated that the mounting portion disposed adjacent the first opening is formed by an edge of the housing extending in a direction parallel to the axial direction of the housing.

In order to enable the passive device to transmit signals, in one embodiment, the passive device 10 further includes a signal transmitting module disposed in the housing 100, and the sensing module and the signal transmitting module are electrically connected. Namely, if the first detection piece is the induction module, the first detection piece is electrically connected with the signal emission module, and if the second detection piece is the induction module, the second detection piece is electrically connected with the signal emission module. Therefore, when the induction module and the magnetic part generate relative motion and generate induction electric energy, the induction module generates current and transmits the current to the signal transmitting module, and the signal transmitting module is electrified to work to generate a preset signal after receiving the current generated by the induction module.

In an embodiment, the preset signal is at least one of a wireless signal, a sound signal, a light signal and a vibration signal. In an embodiment, the wireless signal is at least one of a bluetooth signal, a WIFI signal, an infrared signal, and a radio frequency signal. In one embodiment, the sound signal may be a continuous sound, such as playing a pre-recorded audio or a beep. In one embodiment, the light signal may emit a blinking light. In one embodiment, the shock signal may generate a vibration. Further, the preset signal is a wireless signal, and it can be understood that the signal transmitting module is a wireless transmitting module; further, the wireless signal is at least one of a bluetooth signal, a WIFI signal, an infrared signal, and a radio frequency signal. Of course, the wireless signal is not limited thereto.

In order to transmit signals that can be more easily received from the outside, in one embodiment, as shown in fig. 3, a PCB (Printed Circuit Board) 110 is disposed inside the housing 100, and the signal transmission module is disposed on the PCB110 and electrically connected to the PCB. In one embodiment, the signal transmitting module is electrically connected with the sensing module through a PCB, and the PCB is electrically connected with the sensing module through a connector. In one embodiment, the signal emitting module abuts against the sensing module 300, and the signal emitting module is electrically connected with the sensing module 300 through a pin thereof. In an embodiment, a circuit structure is disposed on the PCB110, and the signal transmitting module is electrically connected to the circuit structure on the PCB 110. In an embodiment, the circuit structure includes a signal amplifying circuit, and the signal transmitting module is electrically connected to the signal amplifying circuit on the PCB110, and the signal amplifying circuit is configured to amplify the current signal received by the signal transmitting module from the sensing module 300. When the current generated by the sensing module is small, the current generated by the sensing module can be finally amplified into a preset signal through the circuit structure on the PCB110 to be more easily received by the outside.

In order to enable the first detecting member and the second detecting member to generate relative movement and generate induced power when the housing moves towards the predetermined direction, in one embodiment, as shown in fig. 3, the second detecting member 300 is fixedly disposed on a sidewall of the housing 100, the second detecting member 300 has a hollow structure, and a movable hole communicating with the receiving cavity is formed on an inner side of the second detecting member 300, that is, a hole wall of the movable hole is an inner sidewall of the second detecting member 300, and the first detecting member 200 is movably disposed in the receiving cavity 401 and movably passes through the movable hole. In one embodiment, the second sensing member 300 is annular in shape. In one embodiment, the second detection member is located in a middle portion of the housing. Therefore, the second detection piece can be fixedly arranged on the side wall of the shell without additionally arranging a fixing support, and the first detection piece moves in the accommodating cavity and penetrates through the movable hole when the shell moves towards the preset direction, so that the magnetic piece and the induction module generate relative movement and generate induction electric energy.

In order to fix the second detecting member in the housing, in one embodiment, as shown in fig. 3, a sidewall portion of the housing 100 protrudes toward the accommodating cavity 401 to form a step portion 412, the second detecting member 300 is disposed on the step portion 412, a side surface of the second detecting member 300 abuts against a sidewall of the housing 100 or a sealant 413 is filled between the side surfaces of the second detecting member 300 and the sidewall of the housing 100, and a surface of the second detecting member 300 opposite to the step portion 412 abuts against the first sealing cover 430 or a sealant 413 is filled between the side surfaces of the second detecting member 300 and the first sealing cover 430. Like this, through set up in the casing support the portion in order to detect the piece with the second and set up on the step portion, rethread seal glue with the second detect the piece with the lateral wall of casing fixed or directly with the second detect the piece with the lateral wall butt of casing, through sealed glue with the second detect the piece with first sealed lid fixed or directly with the second detect the piece with first sealed lid butt, make the second detect the piece fixed set up in the casing.

In order to protect the first detecting member, in one embodiment, as shown in fig. 3, at least one end of the accommodating cavity 401 is provided with a first buffering portion 441, and the first detecting member 200 is movably disposed between two ends of the accommodating cavity 401. In an embodiment, one end of the accommodating cavity 401 is provided with a first buffering portion 441, and the first detecting member 200 is movably disposed between two ends of the accommodating cavity 401. In an embodiment, two ends of the accommodating cavity 401 are respectively provided with a first buffering portion 441, and the first detecting member 200 is movably disposed between the two first buffering portions 441. Because the first detection piece of control when the casing motion, the first both ends position that detects the piece and move the slip chamber can bump with the casing, sets up first buffer portion through the tip of accepting the chamber at the activity of first detection piece for first detection piece can obtain the protection under the effect of first buffer portion. In one embodiment, the first buffer portion is a rubber pad.

In order to enable the sensing module to generate a larger current, in one embodiment, the first detecting element is a magnetic element, the number of the magnetic elements is two and is respectively a first magnetic element and a second magnetic element, the polarities of the first magnetic element and the second magnetic element are the same, the accommodating cavity has a first end and a second end which are opposite, the first magnetic element is arranged at the first end of the accommodating cavity and is fixedly connected with the housing, and the second magnetic element is movably arranged between the first end and the second end of the accommodating cavity. The first magnetic part is fixedly arranged at the first end of the accommodating cavity, the second magnetic part is movably arranged between the first end and the second end of the accommodating cavity, because the polarities of the first magnetic part and the second magnetic part are the same, when the shell moves towards the preset direction, namely the shell moves approximately towards the direction from the first end to the second end of the movable cavity, the second magnetic part moves towards one end where the first magnetic part is located, so that the induction module can generate a primary electric signal, after the shell stops moving, the second magnetic part moves away from one end where the first magnetic part is located under the action of the repulsive force of the first magnetic part, so that the induction module can generate a secondary electric signal, the current generated by the induction module is increased, meanwhile, because the second magnetic part is prevented from being close to the first magnetic part under the action of the repulsive force of the first magnetic part when the shell is static, the phenomenon that the second magnetic part moves relative to the induction module before the shell moves towards the preset direction, so that the induction module generates induction electric energy is avoided An error signal is generated.

In order to enable the sensing module to generate a larger current, in another embodiment, as shown in fig. 3, an elastic member 450 is further disposed in the housing 100, the receiving cavity 401 has a first end and a second end opposite to each other, the elastic member 450 is disposed at the first end of the receiving cavity 401 and is fixedly connected to the housing 100, and the first detecting member 200 is movably disposed between the first end and the second end of the receiving cavity 401. In an embodiment, the elastic member 450 is disposed at a first end of the accommodating cavity 401 and is fixedly connected to the housing 100, and a first buffering portion 441 is disposed at a second end of the accommodating cavity 401. Through setting up the elastic component, and treat the during operation at the passive device and stop first detection piece at the second end that moves the chamber, when the casing moves towards the direction of predetermineeing and roughly when moving towards the direction of the first end to the second end in activity chamber promptly, because the magnetic component that inertia activity set up can move towards the first end in activity chamber, make the response module can produce the signal of once more, after casing stop motion, the magnetic component of activity can move towards the second end in activity chamber under the effect of the restoring force of elastic component, make the response module can produce the signal of once more, increase the electric current that the response module produced. In this embodiment, the elastic member is a spring.

In order to facilitate installation of the first detecting element and the second detecting element, in another embodiment, as shown in fig. 4 to 7, a support 400 is disposed in the housing 100, the support 400 is provided with a sliding cavity 402, the first detecting element 200 is movably disposed in the sliding cavity 402, the second detecting element 300 has a hollow structure, and the second detecting element 300 is disposed around the support 400. Through setting up the support for first detection piece can set up in the support and slide in the slip intracavity, and the second detects the lateral wall setting that the support can be encircleed, conveniently fixes first detection piece and second and detects the piece. It is understood that the space of the receiving cavity 401 is larger than the space of the sliding cavity 402, and the bracket 400 is disposed in the receiving cavity 401.

In one embodiment, the signal transmitting module is disposed on the bracket 400. In one embodiment, as shown in fig. 4 to 7, a PCB110 is disposed in the housing 100, the signal transmitting module is soldered on the PCB110, and the PCB110 is disposed on the bracket 400.

In one embodiment, as shown in fig. 7, the PCB110 has a ring shape, and the PCB110 is disposed around the outside of the bracket 400. In an embodiment, a jack is formed on the PCB110, an insertion part 470 is disposed on the bracket 400, a connector 471 is disposed on the insertion part 470, the PCB110 is disposed on the insertion part, the connector passes through the jack, and the PCB and the second detecting member are electrically connected through the connector 471. In an embodiment, the inserting portion has a clamping groove 403, and the connector 471 is clamped in the clamping groove 403.

In order to protect the movable magnetic member, in one embodiment, as shown in fig. 4 and 6, at least one end of the sliding cavity 402 is provided with a second buffer portion 442, and the first detecting member 200 is movably disposed between two ends of the sliding cavity 402. In an embodiment, one end of the sliding cavity 402 is provided with a second buffer 442, and the first detecting member 200 is movably disposed between two ends of the sliding cavity 402. In an embodiment, the two ends of the sliding cavity 402 are respectively provided with a second buffer portion 442, and the first detecting member 200 is movably disposed between the two second buffer portions 442. When control magnetic part when the casing motion, the magnetic part moves the both ends position that slides the chamber and can bump with the casing, sets up a buffering portion respectively through the both ends in the slip chamber of magnetic part motion for the magnetic part receives the protection at the effect of buffering portion. In one embodiment, the second buffer portion is a rubber pad.

In one embodiment, the first detection member is a magnetic member, the number of the magnetic members is two, the two magnetic members are respectively a first magnetic member and a second magnetic member, the polarities of the first magnetic member and the second magnetic member are the same, the sliding cavity is provided with a first end and a second end which are opposite, the first magnetic member is arranged at the first end of the sliding cavity and fixedly connected with the bracket, and the second magnetic member is movably arranged between the first end and the second end of the sliding cavity.

In an embodiment, as shown in fig. 4, an elastic member 450 is further disposed in the bracket 400, the sliding cavity 402 has a first end and a second end opposite to each other, the elastic member 450 is disposed at the first end of the sliding cavity 402 and is fixedly connected to the bracket 400, and the first detecting member 200 is movably disposed between the first end and the second end of the sliding cavity 402. In an embodiment, the elastic member 450 is disposed at a first end of the sliding cavity 402 and is fixedly connected to the housing 100, and a second end of the sliding cavity 402 is provided with a second buffer 442. In one embodiment, the elastic member is a spring. In one embodiment, the second buffer portion is a rubber pad.

In order to conveniently and firmly fix the sensing module on the bracket, in one embodiment, as shown in fig. 5, the bracket 400 includes a bracket body 411, a first blocking portion 410 and a second blocking portion 420, the first blocking portion 410 and the second blocking portion 420 are arranged in parallel at intervals, the bracket body 411 is respectively penetrated through the first blocking portion 410 and the second blocking portion 420, the sliding cavity 402 is arranged on the bracket body 411, and the second detecting member 300 is arranged around the outer side of the bracket body 411 and clamped between the first blocking portion 410 and the second blocking portion 420. Like this, through setting up the first portion of establishing of keeping off and the second portion of establishing of keeping off, establish the response module card between the first portion of establishing of keeping off and the second portion of establishing of keeping off, conveniently firmly fix the second detection piece on the support. In an embodiment, the stent body has a hollow cylindrical shape, and in an embodiment, the first blocking portion and the second blocking portion have a disk shape.

In an embodiment, the signal transmitting module is disposed on the first blocking portion 410 or the second blocking portion 420. In an embodiment, a PCB110 is disposed in the housing 100, the signal transmitting module is disposed on the PCB110, and the PCB110 is disposed on the first blocking portion 410 or the second blocking portion 420.

In order to facilitate the magnetic member to be placed in the bracket, in one embodiment, as shown in fig. 4, a second opening 102 is formed at one end of the sliding cavity 401, and a second sealing cover 480 is covered on the second opening 102. The second opening 102 is opened in the sliding cavity 401, so that the first detecting member 200 can be conveniently placed in the bracket 400 through the second opening 102. In an embodiment, the two ends of the sliding cavity 401 are respectively opened with the second openings 102, and a second sealing cover 480 is respectively covered on the two second openings 102. In one embodiment, the second sealing cover 480 is detachably connected to the bracket 400. In one embodiment, the second sealing cover 430 is screwed with the bracket 400; in one embodiment, the second sealing cover 430 is inserted into the bracket 400; in one embodiment, the second sealing cover 430 is snapped to the bracket 400.

In order to facilitate the arrangement of the bracket, the sensing module and the magnetic element in the housing and protect the bracket, the sensing module and the magnetic element, in one embodiment, as shown in fig. 4, the housing 100 has an accommodating cavity 401, one end of the accommodating cavity 401 is provided with a first opening 101, the sensing module 300 and the bracket 400 are both arranged in the accommodating cavity 401, the second detecting element 300 is arranged around the outer side of the bracket 400, the bracket 400 is provided with a sliding cavity 401, the first detecting element 200 is movably arranged in the sliding cavity 401, and the accommodating cavity 401 is filled with a sealant 413 to seal the bracket 400 and the second detecting element 300. The first opening 101 is formed at one end of the accommodating cavity 401, so that the bracket 400, the first detection piece 200 and the second detection piece 300 are conveniently arranged in the casing 100, and the sealant 413 is filled in the rest space in the accommodating cavity 401, so that the bracket 400 and the second detection piece are sealed in the accommodating cavity 120 to protect the bracket 400, the sensing module 300 and the magnetic piece 200.

In an embodiment, the present application further provides a washing tub comprising a passive device as described in any of the above embodiments.

In an embodiment, the present application further provides a washing tub assembly comprising a washing tub and the passive device as described in any of the above embodiments, the housing being connected to the washing tub.

In one embodiment, the washing tub assembly includes a washing tub and a passive device connected with the washing tub; the passive device comprises a shell, a first detection piece and a second detection piece, wherein the first detection piece and the first detection piece are arranged in the shell, one of the first detection piece and the second detection piece is a magnetic piece, the other one of the first detection piece and the second detection piece is an induction module, and the first detection piece and the second detection piece generate relative movement and generate induction electric energy when the shell moves towards a preset direction; the housing is connected with the washing tub.

In order to facilitate understanding of the washing tub assembly of the washing machine of the present application, the washing tub assembly of the washing machine of the present application will be further described with reference to the accompanying drawings.

In one embodiment, as shown in fig. 1 to 3 and 8 to 9, the washing tub assembly 20 of the washing machine includes a washing tub 500 and a passive device 10 connected to the washing tub 500; the passive device 10 includes a housing 100, a first detecting element 200 and a second detecting element 300, wherein the first detecting element 200 and the second detecting element 300 are disposed in the housing 100. Wherein, one of the first detecting member 200 and the second detecting member 300 is a magnetic member, the other of the first detecting member 200 and the second detecting member 300 is an induction module, and the first detecting member 200 and the second detecting member 300 generate relative movement and generate induction power when the housing 100 moves towards a preset direction; the housing 100 is connected with the washing tub 500.

In one embodiment, the passive device is fixedly disposed at the bottom of the washing tub. In one embodiment, the passive device is fixedly arranged at the bottom of the washing barrel and positioned in the barrel, and in another embodiment, the passive device is fixedly arranged at the bottom of the washing barrel and positioned outside the barrel. In one embodiment, the passive device is fixedly disposed at the top of the washing tub. In one embodiment, the passive device is fixedly disposed on the top of the washing tub and located inside the tub, and in another embodiment, the passive device is fixedly disposed on the top of the washing tub and located outside the tub. In one embodiment, the passive device is fixedly disposed on a sidewall of the washing tub. In one embodiment, the passive device is fixedly disposed on an inner sidewall of the washing tub, i.e., located in the tub. In one embodiment, the passive device is fixedly disposed on an outer sidewall of the washing tub, i.e., outside the tub. Preferably, the passive device is fixedly arranged at the bottom of the washing tub and is positioned outside the tub.

In an embodiment, the washing tub is a keg of a washing machine, i.e. a keg comprising a vat and a keg in a tub-in-tub washing machine which is smaller in volume. In one embodiment, the casing moves circularly in the preset direction along with the rotation of the washing tub, and the first detecting member and the second detecting member move relatively to each other and generate inductive power when the casing moves circularly in the preset direction. In an embodiment, the moving direction of the first detecting member or the second detecting member relative to the housing is in a tangential direction of the preset direction. In one embodiment, the extension direction of the sliding cavity is tangential to the preset direction.

The above-mentioned washing tub assembly 20, through setting the passive device 10 on the washing tub 500, when the washing machine generates an instruction to control the washing tub to move towards the preset direction, because the passive device 10 is fixedly installed on the washing tub, if the washing tub is placed in the washing machine, the washing tub will drive the housing 100 to move towards the preset direction to make the induction module and the magnetic member in the housing 100 generate relative movement, so that the induction module generates an electric signal and can be received by the receiving device, i.e. if the receiving device receives the electric signal, it is determined that the washing tub is installed in the washing machine, otherwise, if the electric signal is not received, it is determined that the washing tub is not placed in the washing machine, therefore, by installing the passive device on the washing tub, and making the washing machine generate an instruction to control the washing tub to rotate, it is determined whether the passive device 10 generates an electric signal to automatically determine whether the washing tub is, therefore, the washing program whether to use the washing barrel for washing can be automatically selected under the condition that whether the washing barrel exists can be automatically judged by the washing machine, and meanwhile, the washing error caused by the error of the selected program can also be avoided. For example, when the washing tub is a keg of a tub-in-tub washing machine, when the washing machine automatically judges that there is a keg, a keg washing program for washing using the keg is automatically selected, and when the washing machine automatically judges that there is no keg, a tub washing program for washing using the tub, that is, a regular washing program, is automatically selected. Whether the washing barrel is placed in the washing machine or not is detected by using the passive device, the passive device is not required to be connected into an external power supply, and the structural design is simple.

In order to avoid affecting the washing inside the washing tub and to prevent passive devices from being damaged by excessive contact with water, in one embodiment, as shown in fig. 9, the passive device 10 is fixedly disposed on the washing tub 500 and outside the washing tub 500. Because the inside washing that needs to carry out the clothing of washtub 500 can pour into water into, if set up passive device 10 in washtub 500 bucket have probably to cause the clothes in washtub 500 to block, influence the inside washing of washtub 500, and if make passive device 10 and too much contact of water, when passive device 10 leakproofness is not enough, probably can make the inside water of passive device 10, influence the response module and produce the signal of telecommunication, and through set up passive device 10 outside the bucket of washtub 500, avoid influencing the inside washing of washtub 500 and prevent that passive device 10 and too much contact of water from becoming invalid.

In order to accommodate the passive device, in one embodiment, as shown in fig. 9, a mounting groove 501 is formed at the bottom of the washing tub 500, and the passive device 10 is mounted in the mounting groove 501. In one embodiment, the mounting groove 501 is annular. Because the lateral wall thickness of washtub 500 is less, inconvenient fluting holding passive device 10, and do not fluting directly exposes passive device 10 outside washtub 500 and influence the wholeness of washtub 500, make the structure of washtub 500 succinct, through seting up mounting groove 501 in the bottom, conveniently accomodate passive device 10 in the bottom of washtub 500, and do not destroy the wholeness of washtub 500, make the structure of washtub 500 succinct.

In one embodiment, as shown in fig. 9, the opening of the mounting groove 501 is located outside the tub of the washing tub, and in another embodiment, the opening of the mounting groove is located inside the tub of the washing tub. In one embodiment, as shown in fig. 9, the bottom of the washing tub 500 is formed with a mounting groove 501, the mounting groove 501 is disposed adjacent to the edge of the washing tub 500, and the passive device is fixedly disposed in the mounting groove. In one embodiment, as shown in fig. 9, the bottom of the washing tub 500 is provided with a pulsator mounting part 510, and the mounting groove 501 is located between the pulsator mounting part 510 and the edge of the washing tub 500, and the pulsator mounting part is used for mounting the washing tub pulsator. Therefore, the position of the mounting groove avoids the position of the impeller, and the influence on the mounting of the washing barrel on the impeller is avoided. It should be noted that the shape and structure of the pulsator mounting portion are designed as in the prior art, and are not described herein again.

In order to facilitate the installation of the housing on the washing tub, in one embodiment, as shown in fig. 1 and 11, the housing 100 includes a first sub-housing 111 and a second sub-housing 112 integrally formed, the inside of the first sub-housing 111 and the inside of the second sub-housing 112 communicate with each other, the cross-sectional area of the first sub-housing 111 is greater than that of the second sub-housing 112, wherein the distance from the first sub-housing 111 to the center of the bottom of the washing tub 500 is less than the distance from the second sub-housing 112 to the center of the bottom of the washing tub 500. In an embodiment, the first sub-housing 111 and the second sub-housing 112 each have a cylindrical hollow structure, and the diameter of the first sub-housing 111 is larger than that of the second sub-housing 112. It can be understood that the housing is composed of two sub-housings with different cross-sectional areas, the cylinder with a larger cross-sectional area, the inner space can be set to be larger and can be used for fixedly or movably setting the first detection piece and the second detection piece, the cylinder with a smaller diameter is generally set to be smaller and can be used for movably setting one of the first detection piece and the second detection piece, but when the passive device is fixed at the bottom of the washing barrel, because the bottom of the washing barrel is circular, and the central axis of the housing is linear, the first sub-housing with a larger cross-sectional area can be close to the center of the bottom, the second sub-housing with a smaller cross-sectional area is close to the edge of the bottom, and the second sub-housing gives way to the edge of the bottom of the washing barrel, so that the housing can be more conveniently arranged on the washing barrel.

In order to fix the passive device in the mounting groove, in one embodiment, as shown in fig. 10, a fixing portion 520 is disposed in the mounting groove 501, and the housing 100 is connected to the fixing portion 520. By providing the fixing part 520, the passive device 10 can be fixed in the mounting groove 501, preventing the passive device 10 from falling off from the washing tub 500 in the process of rotating along with the washing tub 500.

In one embodiment, the housing is detachably connected to the fixing portion. In one embodiment, the housing is inserted into the fixing portion. In one embodiment, the housing is clamped with the fixing part. In one embodiment, the housing is screwed with the fixing part. The passive device can be conveniently detached from the washing barrel by detachably connecting the shell with the fixing part.

In an embodiment, as shown in fig. 1, 10 and 11, a mounting portion 130 is further disposed outside the casing 100, and the mounting portion 130 is connected to the fixing portion 520. In one embodiment, the mounting portion 130 is detachably connected to the fixing portion 520. In an embodiment, the mounting portion is inserted into the fixing portion, in an embodiment, the mounting portion is clamped to the fixing portion, and in an embodiment, the mounting portion is in threaded connection with the fixing portion.

In this embodiment, as shown in fig. 1, the mounting portion 130 is opened with a mounting hole 103, and the mounting portion 130 is connected to the fixing portion 520 through the mounting hole 103. For example, the mounting portion is connected to the fixing portion by a screw passing through the mounting hole. Specifically, the fixing portion is provided with a screw hole, and the inner side of the mounting hole is provided with threads. In this embodiment, as shown in fig. 11, two ends of the housing 100 are respectively provided with a mounting portion 130, and two fixing portions 520 are disposed in the mounting groove 501, and each mounting portion is connected to one fixing portion in a one-to-one correspondence manner. Namely, one of the mounting parts is connected with one of the fixing parts, and the other mounting part is connected with the other fixing part. In the present embodiment, as shown in fig. 1 and 11, one of the mounting portions 130 is located at an end of the housing 100 and is disposed adjacent to an edge of the housing 100. In this way, the mounting portion disposed adjacent to the edge of the housing can avoid blocking the induction module and the magnetic member from entering from the end of the housing to be received in the housing. In this embodiment, the mounting holes are respectively opened in the mounting portions.

In order to facilitate the mounting of the passive device to the fixing portion, in one embodiment, as shown in fig. 10 and 11, a supporting portion 530 is further disposed in the mounting groove 501, the supporting portion 530 is located between the two fixing portions 520, the housing 100 is disposed on the supporting portion 530, and the shape of the surface of the supporting portion 530 abutting against the housing 100 is matched with the shape of the surface of the housing 100 abutting against the supporting portion 530. Through setting up supporting part 530, can place passive device 10 on supporting part 530 earlier, aim at the installation department 130 of passive device 10 with fixed part 520 again and be connected for it is more convenient to install, especially when installation department 130 and fixed part 520 size are less can not support passive device 10, sets up supporting part 530 and has made things convenient for the installation of passive device 10 more. In one embodiment, the housing is cylindrical, and a surface of the support portion abutting against the housing is arc-shaped.

In order to save materials, in one embodiment, the supporting part comprises a plurality of supporting ribs, each supporting rib is positioned between two fixing parts, the shape of the surface of each supporting rib, which is abutted to the shell, is matched with the shape of the surface of the shell, which is abutted to the support part, and the shell is arranged on each supporting rib, namely the shape of the surface of each supporting rib is matched with the shape of the surface of the part, which is abutted to the supporting rib, of the shell. In this embodiment, the number of the support ribs is 3. Through setting up the brace rod, can save the material of supporting part, and also have the supporting effect. In one embodiment, the first sub-housing is disposed on two adjacent support ribs, and the second sub-housing is disposed on the other support rib. In one embodiment, the shape of the surface of two adjacent support ribs abutting against the first sub-housing and the shape of the surface of the first sub-housing abutting against the surface of two adjacent support ribs respectively match, and the shape of the surface of the other support rib abutting against the second sub-housing and the shape of the surface of the second sub-housing abutting against the surface of the other support rib match.

In order to protect the passive devices in the mounting slot, in one embodiment, as shown in fig. 8 and 9, the mounting slot 501 is covered with a protective cover 600. In one embodiment, the protective cover 600 seals the mounting slot 501. By providing the protection cover 600 to cover the installation groove 501, the integrity of the washing tub 500 is maintained, and the passive device 10 in the installation groove 501 can be protected.

In one embodiment, the protective cover is detachably connected to the washing tub. In one embodiment, the protective cover is inserted into the washing tub. In one embodiment, the protective cover is clamped with the washing barrel. In one embodiment, the protective cover is screwed with the washing tub.

In order to facilitate the protective cover to be covered on the mounting groove, in an embodiment, as shown in fig. 9, a plurality of inserting columns 540 are disposed in the mounting groove 501, a plurality of inserting holes are disposed on the protective cover 600, and the inserting columns 540 are respectively inserted into the inserting holes in a one-to-one correspondence manner. Through set up grafting post 540 in mounting groove 501, set up the spliced eye on protective cover 600, conveniently cover protective cover 600 and establish on mounting groove 501. In an embodiment, the protection cover is provided with a plurality of protruding portions, the protruding portions are arranged towards the washing tub, and the inserting holes are respectively arranged on one protruding portion in a one-to-one correspondence manner.

In an embodiment, as shown in fig. 9, a buffer slot 610 is opened at the bottom of the protection cover 600, an opening of the buffer slot 610 faces to the outside of the washing tub 500, and the buffer slot 610 is used for disposing a buffer pad. In one embodiment, the protective cover has a drainage hole 620.

In an embodiment, the present application further provides a tub-in-tub washing machine comprising a washing tub assembly as described in any of the above embodiments. In an embodiment, the washing tub is a keg.

The washing machine is characterized in that the passive device is arranged on the washing barrel, when the washing machine generates an instruction for controlling the washing barrel to move towards the preset direction, the passive device is fixedly arranged on the washing barrel, if the washing barrel is placed in the washing machine, the washing barrel can drive the shell to move towards the preset direction, so that the induction module and the magnetic part in the shell generate relative motion, the induction module generates an electric signal and can be received by the receiving device, namely if the receiving device receives the electric signal, the washing barrel is judged to be installed in the washing machine, otherwise, if the electric signal is not received, the washing barrel is judged not to be placed in the washing machine, therefore, the passive device is arranged on the washing barrel, and the washing machine generates an instruction for controlling the washing barrel to rotate, so that whether the washing barrel is installed in the washing machine or not can be automatically judged, therefore, the washing program whether to use the washing barrel for washing can be automatically selected under the condition that whether the washing barrel exists can be automatically judged by the washing machine, and meanwhile, the washing error caused by the error of the selected program can also be avoided. For example, when the washing tub is a keg of a tub-in-tub washing machine, when the washing machine automatically judges that there is a keg, a keg washing program for washing using the keg is automatically selected, and when the washing machine automatically judges that there is no keg, a tub washing program for washing using the tub, that is, a regular washing program, is automatically selected. Whether the washing barrel is placed in the washing machine or not is detected by using the passive device, the passive device is not required to be connected into an external power supply, and the structural design is simple.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A washtub assembly, comprising a washtub and a passive device connected to the washtub;

the passive device comprises a shell, a first detection piece and a second detection piece, wherein the first detection piece and the second detection piece are both arranged in the shell, one of the first detection piece and the second detection piece is a magnetic piece, the other one of the first detection piece and the second detection piece is an induction module, and the first detection piece and the second detection piece generate relative movement and generate induction electric energy when the shell moves towards a preset direction;

the housing is connected with the washing tub.

2. The washing tub assembly of claim 1, wherein the bottom of the washing tub defines a mounting groove, the mounting groove being disposed adjacent to an edge of the washing tub, the passive device being fixedly disposed within the mounting groove.

3. The washing tub assembly of claim 2, wherein the housing comprises a first sub-housing and a second sub-housing integrally formed, an interior of the first sub-housing and an interior of the second sub-housing communicate with each other, and a cross-sectional area of the first sub-housing is greater than a cross-sectional area of the second sub-housing, wherein a distance of the first sub-housing from a center of the bottom of the washing tub is less than a distance of the second sub-housing from the center of the bottom of the washing tub.

4. The washing tub assembly of claim 2, wherein the casing has two ends provided with mounting portions, respectively, and two fixing portions are provided in the mounting groove, and each of the mounting portions is connected to one of the fixing portions in a one-to-one correspondence.

5. The wash tub assembly of claim 4 wherein one of the mounts is disposed adjacent an edge of the housing.

6. The washing tub assembly of claim 4 wherein a support portion is further disposed in the mounting slot between the two securing portions, the housing is disposed on the support portion, and the shape of the surface of the support portion abutting the housing matches the shape of the surface of the housing abutting the support portion.

7. The washing tub assembly of claim 6, wherein the supporting portion includes a plurality of support ribs, each support rib is located between two of the fixing portions, and a surface of each support rib abutting against the casing is shaped to match a surface of the casing abutting against the support member, the casing being disposed on each support rib.

8. The washing tub assembly of claim 2 wherein the mounting channel upper cover is provided with a protective cover.

9. The washing tub assembly of claim 8, wherein the protective cover is removably connected to the washing tub.

10. A tub-in-tub washing machine characterized by comprising a washing tub assembly as claimed in any one of claims 1 to 9.