Energy transfer assembly and clothes treatment equipment

Abstract

The utility model relates to the technical field of clothes processing, in particular to an energy transfer assembly and clothes processing equipment, the clothes processing equipment comprises a clothes containing cylinder, the front end and the rear end of the clothes containing cylinder in the axial direction are rotatably supported by a supporting assembly, and the energy transfer assembly comprises a transmitting coil and a receiving coil; at least one of the receiving coil and the transmitting coil is of a non-annular structure, the receiving coil can be arranged at the rear end of the clothes containing cylinder and located outside the clothes containing chamber of the clothes containing cylinder, and the receiving coil is configured to be used for receiving electric energy transmitted by the transmitting coil. According to the energy transmission assembly, the receiving coil and the transmitting coil are arranged, the receiving coil is used for receiving the electric energy transmitted by the transmitting coil, wireless transmission of the electric energy can be achieved, the receiving coil and / or the transmitting coil are / is designed to be of a non-annular structure, the space occupied by the receiving coil and / or the transmitting coil is reduced under the same transmission efficiency, arrangement is convenient, and the cost is reduced. And under the condition that the occupied space is the same, the transmission efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clothes processing, and in particular to a power transmission assembly and clothes processing equipment. BACKGROUND

[0002] To meet the growing functional needs of consumers for clothes processing equipment, more and more clothes processing equipment in the market is provided with a drying function to reduce the drying time of clothes.

[0003] At present, in the related art, a clothes dryer realizes the judgment of clothes drying through an electric conductivity detection assembly, or is provided with a heating element to assist drying, wherein the heating element or the electric conductivity detection assembly is installed in a drum and rotates with the drum, and it is difficult to supply power through wired conduction, which is inconvenient for power supply. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the present application provides a power transmission assembly and clothes processing equipment.

[0005] In a first aspect, the present application provides a power transmission assembly suitable for clothes processing equipment, wherein the clothes processing equipment comprises a clothes containing drum, both the front end and the rear end of the clothes containing drum in the axial direction are rotatably supported by a support assembly, the power transmission assembly comprises a transmitting coil and a receiving coil, at least one of the receiving coil and the transmitting coil is a non-ring structure, and the receiving coil is configured to receive electric energy transmitted by the transmitting coil.

[0006] In some embodiments, the outer shape of the receiving coil and / or the transmitting coil is polygonal, circular, elliptical or irregular.

[0007] In some embodiments, the power transmission assembly further comprises a bracket, the receiving coil is arranged on the bracket, and the outer shape of the bracket is the same as the outer shape of the receiving coil, and the bracket is configured to be mounted on the clothes containing drum.

[0008] In some embodiments, the power transmission assembly further comprises a magnetic shielding layer, the magnetic shielding layer is arranged on one side of the receiving coil, and the projection of the receiving coil on a plane parallel to the receiving coil is located within the projection of the magnetic shielding layer on the plane.

[0009] The magnetic shielding layer is configured to be arranged between the receiving coil and the clothes containing drum.

[0010] In a second aspect, the present application provides clothes processing equipment comprising a cabinet, a clothes containing drum and the power transmission assembly provided in the first aspect, the clothes containing drum is rotatably arranged in the cabinet, the transmitting coil is arranged on the cabinet, and the receiving coil is arranged on the clothes containing drum.

[0011] In some embodiments, at least part of the receiving coil is arranged opposite to the transmitting coil.

[0012] In some embodiments, further comprising an electric component arranged in the clothes containing drum, and the receiving coil is configured to supply power to the electric component.

[0013] In some embodiments, further comprising a lifting rib arranged on the clothes containing drum and located in a clothes containing chamber of the clothes containing drum, and the electric component is arranged on an outer surface of the lifting rib or inside the lifting rib.

[0014] The clothes treating apparatus further comprises a cable connecting the receiving coil and the electric component.

[0015] In some embodiments, an upper portion of the clothes containing drum is provided with a wire passing hole for the cable to pass through.

[0016] The lifting rib covers the wire passing hole.

[0017] In some embodiments, the clothes treating apparatus further comprises a base provided with the supporting wheel.

[0018] Compared with the prior art, the technical scheme provided by the embodiments of the present application has the following advantages:

[0019] The power transmission assembly is provided with the receiving coil and the transmitting coil, the receiving coil can be arranged on the clothes containing drum and used to receive the power transmitted by the transmitting coil, wireless transmission of the power is realized, and the receiving coil and / or the transmitting coil is designed as a non-ring structure, so that the space occupied by the receiving coil and / or the transmitting coil is reduced at the same transmission efficiency, the arrangement of the receiving coil and / or the transmitting coil is facilitated, or the transmission efficiency of the receiving coil and / or the transmitting coil is increased under the condition of the same occupied space. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the application.

[0021] In order to more clearly illustrate the technical schemes in the embodiments of the present application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced as follows, and obviously, other drawings can also be obtained by those skilled in the art without creative labor.

[0022] Figure 1 The structural schematic diagram of the clothes treating apparatus described in the embodiments of the present application;

[0023] Figure 2 is a front view schematic diagram of a laundry treating apparatus in Figure 1 ;

[0024] Figure 3 is a partial structure schematic diagram of a laundry treating apparatus in Figure 1 ;

[0025] Figure 4 is a disassembled schematic diagram of a laundry containing drum of a laundry treating apparatus in Figure 1 ;

[0026] Figure 5 is a structure schematic diagram of a lifting rib in one perspective according to the embodiments of the present application;

[0027] Figure 6 is a structure schematic diagram of a lifting rib in another perspective according to the embodiments of the present application. Figure 5

[0028] wherein 1, power transmission assembly; 11, transmitting coil; 12, receiving coil;

[0029] 2, laundry containing drum; 2a, laundry containing chamber; 21, drum body; 22, rear end cover;

[0030] 3, supporting wheel;

[0031] 4, lifting rib; 41, main body part; 41a, accommodating groove; 411, side plate; 412, top plate; 413, end plate; 42, extending part; 43, reinforcing part;

[0032] 5, cabinet. DETAILED DESCRIPTION

[0033] In order to more clearly understand the above objectives, features and advantages of the present application, the solutions of the present application will be further described below. It should be explained that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0034] In the following description, a lot of specific details are set forth in order to give a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein; obviously, the embodiments in the description are only some of the embodiments of the present application, not all the embodiments.

[0035] As shown in Figures 1 to 6 , the present application provides a power transmission assembly 1, which is suitable for a laundry treating apparatus, and the laundry treating apparatus comprises a laundry containing drum 2, both the front end and the rear end of the laundry containing drum 2 in the axial direction are rotatably supported by a supporting assembly.

[0036] Among them, the above-mentioned supporting assembly can be selected as a supporting wheel 3, both ends of the laundry containing drum 2 in the axial direction are supported by the supporting wheel 3, so that it is not necessary to set a supporting shaft at the rear end of the laundry containing drum 2.​

[0037] The laundry treating apparatus has a drying function, and can be a dryer or a washer-dryer. The dryer refers to an apparatus having a drying function. The washer-dryer refers to an apparatus integrating a drying function and a washing function, and the clothes containing chamber can be used for washing and drying. The washing can include rinsing and spinning.

[0038] The rotation axis of the clothes containing drum 2 can extend in a horizontal direction, and in this case, the laundry treating apparatus can be a drum-type laundry treating apparatus. In the case where the rotation axis of the clothes containing drum 2 extends in a horizontal direction, the clothes are moved from the lower portion to the upper portion by the rotation of the clothes containing drum 2, and the clothes fall from the upper portion to the lower portion by gravity, so that the clothes are dispersed, tumbled, and changed in posture by the combined action of the clothes containing drum 2 and gravity.

[0039] In addition, the clothes containing drum 2 can have a substantially hollow cylindrical shape, and can be a single drum structure in which the laundry treating apparatus has only the clothes containing drum as a drum body. Alternatively, the clothes containing drum 2 can be provided with an outer drum, and in this case, the laundry treating apparatus has two drum bodies. In addition, the clothes containing drum 2 can be made of a metal material such as stainless steel.

[0040] Referring to Figures 1 to 2 The power transmission assembly 1 includes a receiving coil 12 and a transmitting coil 11, at least one of the receiving coil 12 and the transmitting coil 11 has a non-annular structure, and the receiving coil 12 is configured to receive electric power transmitted by the transmitting coil 11.

[0041] As can be understood, since the clothes containing drum 2 of the laundry treating apparatus is rotatably supported by a plurality of support assemblies, the rear end of the clothes containing drum 2 is not connected to other structures, and thus the receiving coil 12 and the transmitting coil 11 do not need to be designed to avoid other structures. In order to fully utilize the area of the rear end of the clothes containing drum 2, the receiving coil 12 and / or the transmitting coil 11 are designed to have a non-annular structure, so that the receiving coil 12 and / or the transmitting coil 11 can occupy less space while maintaining the same transmission efficiency, facilitating the arrangement of the receiving coil 12 and / or the transmitting coil 11, and increasing the transmission efficiency of the receiving coil 12 and / or the transmitting coil 11 while occupying the same space.

[0042] The receiving coil 12 can be disposed at the rear end of the clothes containing drum 2 and outside the clothes containing chamber 2a of the clothes containing drum 2. The transmitting coil 11 and the receiving coil 12 can achieve contactless electric power transmission, that is, the transmitting coil 11 and the receiving coil 12 can achieve electric power transmission without a connecting wire therebetween, so that the transmitting coil 11 and the receiving coil 12 can still achieve electric power transmission when the clothes containing drum 2 is in a rotating state.

[0043] Exemplarily, the energy is transmitted between the transmitting coil 11 and the receiving coil 12 through a magnetic field, for example, the transmitting coil 11 can generate a changing magnetic field, and the receiving coil 12 can generate an electric current through magnetic induction, so as to realize the transmission of electric quantity.

[0044] The transmitting coil 11 and the receiving coil 12 are both non-ring structures. Of course, the receiving coil 12 can be a non-ring structure, and the transmitting coil 11 can be a ring structure. Or the receiving coil 12 can be a ring structure, and the transmitting coil 11 can be a non-ring structure.

[0045] It should be noted that the ring structure is a structure with a central hole, that is, the ring structure itself surrounds to form a central hole, at this time the ring structure has an inner edge and an outer edge, the shape of the inner edge can be circular, elliptical or polygonal, and the shape of the outer edge can be circular, elliptical or polygonal, such as a circular ring structure, a square ring structure, etc. The non-ring structure refers to a structure without a central hole, that is, only an outer edge without an inner edge, at this time the shape of the outer edge can be circular, elliptical or polygonal, such as a square structure, a triangular structure, a circular structure, etc.

[0046] Among them, the outer shape of the receiving coil 12 and / or the transmitting coil 11 can be polygonal, circular, elliptical or irregular. Irregular shape refers to the receiving coil 12 and / or the transmitting coil 11 having all kinds of shapes, such as square, rectangular, circular, elliptical and other regular shapes. The shape of the non-ring structure can also be a regular shape other than square, circular and elliptical, such as trapezoidal, diamond, etc., which will not be listed one by one here.

[0047] Understandably, the above-mentioned non-ring structure can be selected to be a regular shape or an irregular shape, which can reduce the processing requirements of the transmitting coil 11 and / or the receiving coil 12, thereby reducing the processing cost and improving the processing efficiency.

[0048] Exemplarily, with reference to Figure 2 The shape of the receiving coil 12 is square, at this time the shape of the transmitting coil 11 is preferably square, and of course can also be selected as other shapes such as ring, circle, etc.

[0049] In some embodiments, the above-mentioned energy transmission assembly 1 further comprises a bracket (not shown in the figure), the receiving coil 12 is arranged on the bracket, and the outer shape of the bracket is the same as the outer shape of the receiving coil 12, and the bracket can be mounted on the clothes drum 2.

[0050] By setting the support, not only the fixation of the receiving coil 12 can be realized, but also the installation of the receiving coil 12 is facilitated, and the support can separate the receiving coil 12 and the clothes containing cylinder 2 by a certain distance, so as to avoid the heating of the clothes containing cylinder 2 by the receiving coil 12 when the magnetic flux leakage occurs. Of course, the above-mentioned receiving coil 12 can also be directly installed on the clothes containing cylinder 2.

[0051] Further, the above-mentioned energy transmission assembly 1 further comprises a magnetic shielding layer, the magnetic shielding layer is arranged on one side of the receiving coil 12, and the projection of the receiving coil 12 on a plane parallel to the receiving coil 12 is located in the projection range of the magnetic shielding layer on the plane. The magnetic shielding layer can be arranged between the receiving coil 12 and the clothes containing cylinder 2.

[0052] Understandably, by setting the magnetic shielding layer, the receiving coil 12 and the clothes containing cylinder 2 can be completely separated, so as to avoid the heating of the clothes containing cylinder 2 by the receiving coil 12 when the magnetic flux leakage occurs, and the energy transmission efficiency is affected. When the energy transmission assembly 1 is arranged at the rear end of the clothes containing cylinder 2, the projection of the receiving coil 12 on the clothes containing cylinder 2 is located in the projection range of the magnetic shielding layer on the clothes containing cylinder 2.

[0053] It should be noted that the above-mentioned magnetic shielding layer is also a non-ring structure, at this time, the shape of the magnetic shielding layer can be selected as a regular shape such as a square, a rectangle, a circle, etc., or can be selected as an irregular shape, and preferably, the shape of the magnetic shielding layer is adapted to the shape of the receiving coil 12. In addition, the material of the above-mentioned magnetic shielding layer can be selected as ferrite, or can be selected as other materials.

[0054] Among them, the above-mentioned magnetic shielding layer can be arranged on the support, or can be directly arranged on the clothes containing cylinder 2, which can shield when the receiving coil 12 leaks magnetic flux.

[0055] The clothes treating apparatus further comprises a base (not shown in the figure), and the above-mentioned support wheel 3 is arranged on the base. The support wheel 3 provides support for the clothes containing cylinder 2, so that the clothes containing cylinder 2 can stably rotate.

[0056] Exemplarily, referring to Figure 2 The above-mentioned support assembly is the support wheel 3, and the support wheel 3 is provided with two to four, one or two of which are arranged at the front end of the clothes containing cylinder 2, and the other one or two are arranged at the rear end of the clothes containing cylinder 2, so that the four support wheels 3 provide stable support for the clothes containing cylinder 2.

[0057] Referring to Figure 3 The clothes treating apparatus comprises the above-mentioned clothes containing cylinder 2 and energy transmission assembly 1, and further comprises a box body 5, the clothes containing cylinder 2 is rotatably arranged in the box body 5, the transmitting coil 11 is arranged on the box body 5, and the receiving coil 12 is arranged on the clothes containing cylinder 2. Among them, the above-mentioned base is connected to the box body 5.

[0058] Understandably, the receiving coil 12 rotates with the clothes drum 2, while the transmitting coil 11 is arranged on the cabinet 5 and remains stationary, so that the receiving coil 12 is rotating relative to the transmitting coil 11.

[0059] Further, at least part of the receiving coil 12 is arranged opposite the transmitting coil 11. Understandably, the centers of the receiving coil 12 and the transmitting coil 11 can both be located on the rotation axis of the clothes drum 2, at which time the entire receiving coil 12 and the transmitting coil 11 are arranged opposite each other. Alternatively, the receiving coil 12 and the transmitting coil 11 can also be staggered relative to each other, such as the center of the transmitting coil 11 being located on the rotation axis of the clothes drum 2, while the center line passing through the center of the receiving coil 12 is parallel to the rotation axis of the clothes drum 2. For another example, the center of the receiving coil 12 is located on the rotation axis of the clothes drum 2, while the center line passing through the center of the transmitting coil 11 is parallel to the rotation axis of the clothes drum 2.

[0060] Preferably, the centers of the receiving coil 12 and the transmitting coil 11 are both located on the rotation axis of the clothes drum 2. In this way, during the rotation of the receiving coil 12 with the clothes drum 2, the relative positions of the receiving coil 12 and the transmitting coil 11 remain unchanged, thereby ensuring that the receiving coil 12 and the transmitting coil 11 can achieve stable transmission of electrical energy.

[0061] With reference to Figure 3 and Figure 4 The clothes treatment apparatus further comprises an electric component arranged in the clothes drum 2, and the receiving coil 12 is capable of supplying power to the electric component.

[0062] The electric component can be selected as a heating component, such as a graphene heating sheet arranged in the clothes chamber 2a and capable of directly contacting the clothes in the clothes chamber 2a, thereby drying the clothes. Alternatively, the electric component can also be selected as a detection component arranged in the clothes chamber 2a for detecting a sensing parameter of the clothes in the clothes chamber 2a, such as temperature, humidity, pressure, or color, etc. The clothes treatment apparatus can determine the characteristic information or drying degree of the clothes according to the detection of the sensing parameter by the detection component. For example, the principle of the detection component can be that the clothes in the clothes chamber 2a contact two electrode pieces of the detection component, so that a detection circuit is turned on, and the resistance values of different clothes characteristics are different, thereby detecting the characteristic information of the clothes.

[0063] Understandably, the receiving coil 12 supplies power to the electric component, and both the receiving coil 12 and the electric component rotate with the clothes drum 2, so that the problem of entanglement of the electric wire caused by the rotation of the clothes drum 2 can be avoided.

[0064] Further, the clothes treatment apparatus further comprises a lifting rib 4 arranged on the clothes drum 2 and located in the clothes chamber 2a of the clothes drum 2. The electric component is arranged on the outer surface of the lifting rib 4 or inside the lifting rib 4.

[0065] Understandably, the clothes holding chamber 2a is used to place clothes, the clothes holding drum 2 can rotate, the lifting rib 4 can contact the clothes in the clothes holding chamber 2a and drive the clothes to rotate with the clothes holding drum 2. For example, the clothes move upward under the action of the lifting rib 4, and then move downward under the action of gravity and / or centrifugal force, so that the clothes continuously change posture in the clothes holding chamber 2a.

[0066] Among them, the above detection assembly can be arranged on the outer surface of the lifting rib 4, so that the detection assembly can be in direct contact with the clothes in the clothes holding chamber 2a, so as to perceive the drying degree of the clothes at close range, and effectively improve the accuracy of judging the drying degree of the clothes in the clothes holding chamber 2a. Of course, the above detection assembly can also be arranged on the clothes holding drum 2, and the detection can also be realized.

[0067] Among them, the clothes treatment equipment further comprises a cable (not shown in the figure), and the cable is connected to the receiving coil 12 and the electric component. That is, the cable plays a role of transmitting electric energy from the receiving coil 12 to the electric component at this time, so as to supply power to the electric component by the receiving coil 12.

[0068] In addition, the above lifting rib 4 is formed with a containing groove 41a. The clothes treatment equipment further comprises a control board arranged in the containing groove 41a, and the cable is connected to the receiving coil 12 and the control board, and the control board is connected to the electric component.

[0069] Among them, the cable can transmit electric signals, and the control board can control the on-off of power supply, such as can conduct or cut off the transmission of electric energy between the receiving coil 12 and the electric component, that is, control the start and stop of the electric component. The control board is arranged in the containing groove 41a of the lifting rib 4, and the electric component is arranged on the lifting rib 4, so as to facilitate the electrical connection between the control board and the electric component.

[0070] The above control board can include MCU, i.e. Micro controller Unit, microcontroller. It can be used to realize signal acquisition, processing and other input functions, and output functions such as issuing instructions to control the work of the actuator. For example, the control board can control the on-off of power supply.

[0071] Understandably, the receiving coil 12, the control board, the cable and the electric component rotate synchronously with the clothes holding drum 2, so that the rotation of the clothes holding drum 2 will not cause the cable to be wound.

[0072] Further, the clothes holding drum 2 is provided with a wire passing hole for the cable to pass through, and the above lifting rib 4 covers the wire passing hole. In this way, one end of the cable is connected to the receiving coil 12, and the other end passes through the wire passing hole into the containing groove 41a to connect the control board, which can reduce the winding of the cable. Moreover, the lifting rib 4 covers the wire passing hole, which can avoid the cable exposed in the clothes holding chamber 2a, so as to avoid the clothes contacting the cable.

[0073] In addition, the cable is sealed in the wire hole, such as by a sealing ring, sealing glue or other sealing structure to seal the gap between the cable and the wire hole, thereby avoiding water or air leakage from the wire hole in the case of a washer-dryer.

[0074] Specifically, referring to Figure 4 The clothes containing drum 2 includes a drum body 21 and a rear end cover 22 connected to each other, the drum body 21 has a clothes feeding opening on the front side, and the rear end cover 22 seals the rear end opening of the drum body 21, the wire hole is formed on the rear end cover 22, and the receiving coil 12 is arranged on the rear end cover 22 and located outside the clothes containing chamber 2a. The lifting rib 4 is arranged on the drum body 21 and extends to cover the wire hole of the rear end cover 22.

[0075] Exemplarily, referring to Figure 5 and Figure 6 The lifting rib 4 includes a main body part 41 and an extension part 42 connected to the main body part 41, the main body part 41 is formed with a receiving groove 41a, and the extension part 42 covers the wire hole.

[0076] The extension part 42 is provided with a wire channel for the cable to pass through, and the surface of the extension part 42 facing the rear side is attached to the rear surface of the clothes containing chamber 2a, that is, the side surface of the rear end cover 22 facing the clothes containing chamber 2a. The wire channel can be sealed through the rear surface of the clothes containing chamber 2a to prevent water or lint in the clothes containing chamber 2a from entering the wire channel.

[0077] The main body part 41 includes two side plates 411, a top plate 412 and an end plate 413, the two side plates 411 are arranged at intervals along the circumference of the clothes containing drum 2, and the bottom ends of the two side plates 411 are connected to the circumferential side wall of the clothes containing drum 2, the top plate 412 is connected to the top ends of the two side plates 411, and the end plate 413 is connected to the front ends of the two side plates 411, and the top plate 412, the end plate 413 and the two side plates 411 together define the receiving groove 41a. The rear ends of the two side plates 411 are connected to the extension part 42.

[0078] It should be noted that the side plates 411 and the end plate 413 are sealingly connected to the circumferential side wall of the clothes containing drum 2 to ensure the sealing of the receiving groove 41a.

[0079] Further, the lifting rib 4 further includes a reinforcing part 43 arranged in the receiving groove 41a to improve the structural strength of the lifting rib 4. The reinforcing part 43 includes a partition plate arranged in the receiving groove 41a and a reinforcing rib plate.

[0080] The laundry treating apparatus includes a circulating air passage. The rear side wall of the laundry containing drum 2 is formed with at least one air inlet opening communicating with the laundry containing chamber 2a. The circulating air passage communicates the air inlet opening with an air outlet opening of the laundry containing chamber 2a. For example, the rear side wall of the laundry containing drum 2 is formed with the air inlet opening. The circulating air passage is configured to provide a circulating air flow repeatedly flowing through the laundry containing chamber 2a. The air flow in the circulating air passage can enter the laundry containing chamber 2a through the air inlet opening, and the air flow in the laundry containing chamber 2a can enter the circulating air passage through the air outlet opening. The air flow can circulate between the circulating air passage and the laundry containing chamber 2a.

[0081] It can be understood that the number of air inlet openings can be one or more, for example, two, three, four, or five, and the like.

[0082] In an embodiment, the laundry treating apparatus includes a wind cover. The base is located in the cabinet 5 and below the laundry containing drum 2. The rear side wall of the cabinet 5 is formed with an air return opening and an air supply opening communicating with the air inlet opening. The height of the air return opening is lower than the height of the air supply opening. The base is formed with a heat exchange passage. The heat exchange passage is connected to the air outlet opening and the air return opening at two ends, respectively. The wind cover is arranged around the air supply opening and the air return opening, and cooperates with the rear side wall of the cabinet 5 to define an air supply passage. The heat exchange passage and the air supply passage jointly constitute the circulating air passage. The heat exchange passage is located upstream of the air supply passage along the direction of the air flow in the circulating air passage. The air flow sequentially flows through the air outlet opening, the heat exchange passage, the air return opening, the air supply passage, the air supply opening, and the air inlet opening. The cabinet 5 can be substantially hexahedral, for example, a square or a cuboid.

[0083] The number of air supply openings is not limited. The air supply opening can be one or more, for example, two, three, four, or five, and the like.

[0084] Further, the laundry treating apparatus includes a heat exchange assembly located in the heat exchange passage. The heat exchange assembly is configured to exchange heat with the air flow in the heat exchange passage, thereby dehumidifying and heating. The humid and hot air flow in the laundry containing chamber 2a can enter the heat exchange passage through the air outlet opening, and be converted into a dry and hot air flow after heat exchange with the heat exchange assembly. The dry and hot air flow enters the air supply passage through the air return opening, and then returns to the laundry containing chamber 2a through the air supply opening and the air inlet opening.

[0085] The heat exchange assembly includes a condenser and an evaporator. The laundry treating apparatus further includes a compressor and a throttling device. The compressor, the condenser, the throttling device, and the evaporator are connected by pipelines to form a heat pump system. The refrigerant can circulate in the heat pump system. The air flow in the circulating air passage exchanges heat with the refrigerant in the evaporator and the condenser to form a dry and hot air flow. The evaporator is configured to cool and dehumidify the humid and hot air flow from the laundry containing chamber 2a into a dry and cold air flow. The condenser is configured to heat the dry and cold air flow into a dry and hot air flow to return to the laundry containing chamber 2a.

[0086] The working principle of the heat pump system is as follows: the compressor sucks in low-pressure gaseous refrigerant and compresses it to be discharged in a high-pressure state; the high-pressure refrigerant discharged into the condenser transfers heat to the air flow to condense into high-pressure liquid; the high-pressure liquid refrigerant flows through the throttling device to be throttled and reduced in pressure, and then becomes a low-pressure and low-temperature gas-liquid two-phase mixture to enter the evaporator; the refrigerant in the evaporator absorbs the heat of the air flow to become low-pressure gaseous refrigerant; the low-pressure gaseous refrigerant is sucked into the compressor again; the heat exchange is realized through the repeated circulation. That is, the evaporator is used to cool and dehumidify the hot and humid air flow from the clothes holding chamber 2a to form a dry and cold air flow, the condenser heats the dry and cold air flow to become a dry and hot air flow to flow back into the clothes holding chamber 2a, the dry and hot air flow flowing back into the clothes holding chamber 2a contacts the damp clothes again to form a hot and humid air flow, and one drying cycle is completed. Through repeated operation of the drying cycle, the circulating air flow is continuously provided to the clothes holding chamber 2a to dry the clothes.

[0087] Exemplarily, the evaporator and the condenser can both be finned tube heat exchangers.

[0088] Exemplarily, the throttling device includes but is not limited to an electronic expansion valve and the like.

[0089] Further, the clothes treatment apparatus includes a fan wheel for driving the air flow. Exemplarily, the fan wheel is located in the heat exchange channel and between the heat exchange assembly and the return air inlet. In the process of drying the clothes, the fan wheel is used to drive the air flow flowing through the clothes to flow through the evaporator and the condenser in sequence, and then blow to the clothes to form a circulating air flow. The fan wheel can accelerate the air flow and improve the drying efficiency.

[0090] It should be noted that, in this document, the terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0091] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above.

Claims

1. An energy transmission assembly adapted for use in a laundry treatment apparatus, characterised in that, The laundry treating apparatus includes a laundry containing tub rotatably supported by a support assembly at both front and rear ends thereof in an axial direction, and a power transmission assembly including a transmitting coil and a receiving coil, at least one of the receiving coil and the transmitting coil being a non-annular structure, the receiving coil being configured to receive electric power transmitted by the transmitting coil.

2. The power transfer assembly of claim 1, wherein, An outer shape of the receiving coil and / or the transmitting coil is polygonal, circular, elliptical, or irregular.

3. The power transfer assembly of claim 1, wherein, The power transmission assembly further includes a bracket on which the receiving coil is disposed, and an outer shape of the bracket is identical to an outer shape of the receiving coil, the bracket being configured to be mountable on the laundry containing tub.

4. The power transfer assembly of claim 1 or 3, wherein, The power transmission assembly further includes a magnetic shielding layer disposed on one side of the receiving coil, and a projection of the receiving coil on a plane parallel to the receiving coil is located within a projection of the magnetic shielding layer on the plane. The magnetic shielding layer is configured to be disposed between the receiving coil and the laundry containing tub. 5.A laundry treating apparatus, characterized by, The laundry treating apparatus includes a cabinet, a laundry containing tub rotatably disposed in the cabinet, and a power transmission assembly according to any one of claims 1 to 4, the transmitting coil being disposed on the cabinet and the receiving coil being disposed on the laundry containing tub. 6.The laundry treating apparatus according to claim 5, characterized by, At least a portion of the receiving coil is disposed opposite the transmitting coil. 7.The laundry treating apparatus according to claim 5, wherein, The laundry treating apparatus further includes an electric component disposed in the laundry containing tub, and the receiving coil is configured to supply electric power to the electric component. 8.The laundry treating apparatus of claim 7, wherein, The laundry treating apparatus further includes a lifting rib disposed on the laundry containing tub and located in a laundry containing chamber of the laundry containing tub, and the electric component is disposed on an outer surface of the lifting rib or inside the lifting rib. The laundry treating apparatus further includes a cable connecting the receiving coil and the electric component. 9.The laundry treating apparatus of claim 8, wherein, The laundry containing tub is provided with a wire passage hole through which the cable passes. The lifting rib covers the wire passage hole. 10.The laundry treating apparatus according to claim 5, characterized by, The laundry treating apparatus further includes a base on which the support assembly is disposed.

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