An electromagnetic heating module for a laundry treatment apparatus and a laundry treatment apparatus

Abstract

The application belongs to the technical field of clothes processing devices, and discloses an electromagnetic heating module for a clothes processing device and the clothes processing device, wherein the electromagnetic heating module comprises: a first mounting disc, the upper surface of the first mounting disc is provided with an electromagnetic heating coil; and a second mounting disc, which is arranged below the first mounting disc, and a magnet is mounted on the surface of the second mounting disc which faces away from the first mounting disc. The electromagnetic heating module of the application can increase the distance between the first mounting disc and the second mounting disc by arranging the first mounting disc and the second mounting disc and mounting the electromagnetic heating coil and the magnet on the surfaces which face away from each other, which is beneficial to the heat dissipation of the electromagnetic heating coil. When the electromagnetic heating module is applied to the clothes processing device, the water container made of metal can be heated, so that the water can be heated without contact, and the heat dissipation effect is good, and the overheating failure is not prone to occur.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of clothes treatment device, in particular, relates to an electromagnetic heating module for clothes treatment device and clothes treatment device. BACKGROUND

[0002] The existing clothes treatment device with heating function, such as washing machine, mostly adopts the mode of setting recess at the bottom of outer drum and installing heating device such as heating pipe in the recess to achieve the purpose of heating washing water. However, the heating device is set in the outer drum, which occupies the space of the outer drum and affects the capacity of the washing machine. At the same time, the heating device is directly contacted with washing water, so the sealing performance is required to be high. However, when the heating device works, it is in a high temperature state for a long time, which accelerates the aging of the sealing part to some extent, and easily causes sealing failure, so that washing water seeps into the inside of the heating device, or seeps out from the installation port of the heating device installed on the outer drum, thereby causing safety hazards.

[0003] On the other hand, during the heating process, the local environment temperature near the heating device is relatively high, while the temperature of other positions in the washing machine shell is low, which easily causes condensate water on the inner wall of the shell far from the heating device. The inner wall of the washing machine shell is installed with wires, which easily causes the aging of the surface insulation layer of the wires in a humid environment for a long time, and may cause sparking and discharging, which may cause burning smell, or even installation hazards.

[0004] In recent years, the washing machine industry has developed a non-porous inner drum washing machine, which is different from the traditional washing machine that stores water in the outer drum and clothes in the inner drum. The inner drum is no longer provided with a dewatering hole, so that the inner drum can independently store washing water during washing. Through the above-mentioned mode, the storage of water between the inner drum and the outer drum during washing can be avoided, the amount of washing water can be saved, and the accumulation of dirt between the inner drum and the outer drum can be avoided to a great extent, so that the dirt between the inner drum and the outer drum can not enter the inner drum to pollute the clothes, and clean and sanitary washing can be achieved. However, since there is no water between the inner drum and the outer drum during washing, the washing water cannot be heated by the mode of setting heating pipe in the outer drum in the traditional washing machine.

[0005] To solve the above series of problems, the prior art proposes a scheme of applying an electromagnetic heating module to heat washing water in a washing machine. However, the electromagnetic heating module itself has a high temperature when heating, and if effective heat dissipation cannot be achieved, the electromagnetic heating module is prone to overheating failure, affecting use. At present, one scheme to avoid overheating of the electromagnetic heating module is to set a fan inside the electromagnetic heating module to enhance air flow and improve heat dissipation efficiency. Another solution is to use high-frequency mica wire to make an electromagnetic heating coil, as the high-frequency mica wire has strong high-temperature resistance and can withstand higher working temperatures, thereby avoiding overheating failure of the electromagnetic heating module. However, the above two schemes will both cause the manufacturing cost of the electromagnetic heating module to rise, which is not conducive to popularization and application.

[0006] Therefore, the present application is proposed. SUMMARY

[0007] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide an electromagnetic heating module for a clothes treatment device and a clothes treatment device, wherein the magnet in the electromagnetic heating module can avoid magnetic field leakage, thereby improving heating efficiency, and the electromagnetic heating module also has good heat dissipation effect and is not prone to overheating failure.

[0008] To solve the above technical problems, the basic idea of the technical solution of the present application is as follows:

[0009] An electromagnetic heating module for a clothes treatment device, comprising:

[0010] A first mounting disc, an electromagnetic heating coil is arranged on the upper surface of the first mounting disc;

[0011] A second mounting disc is arranged below the first mounting disc, and a magnet is arranged on the surface of the second mounting disc facing away from the first mounting disc.

[0012] Further, the first mounting disc and the second mounting disc both have a circular outer contour, the electromagnetic heating coil is spirally wound on the upper surface of the first mounting disc to form a plurality of concentric circles with the first mounting disc as the common center, and the magnet is a strip-shaped magnet arranged on the lower surface of the second mounting disc along the radial direction of the second mounting disc.

[0013] Preferably, a plurality of strip-shaped magnets are arranged at intervals in the circumferential direction of the second mounting disc.

[0014] Further, the first mounting disc has a circular outer contour, and the first mounting disc comprises a first outer ring and a plurality of coil support portions arranged radially from the inner side of the first outer ring; the coil support portions are hollow between adjacent coil support portions.

[0015] Preferably, the central part of the first mounting disc is provided with a first fixed disc, and the extended end of the coil support part is connected with the first fixed disc.

[0016] Further, a plurality of fixed grooves are arranged on the coil support part along the extension direction thereof, and the electromagnetic heating coil is arranged in the fixed grooves.

[0017] Preferably, the coil support part comprises a support part bottom wall extending in the radial direction, and support part side walls extending upward from both sides of the support part bottom wall, and the fixed grooves pass through from the upper edges of the support part side walls to the support part bottom wall.

[0018] More preferably, the support part bottom wall extends upward to form a support part end wall near one end of the first outer ring, and the support part end wall is connected with the inner side surface of the first outer ring.

[0019] Further, the first mounting disc further comprises a reinforcing part connected with the plurality of coil support parts.

[0020] Preferably, the reinforcing part is a ring-shaped reinforcing rib coaxial with the first outer ring, and the middle parts of the plurality of coil support parts are connected as a whole through the ring-shaped reinforcing rib.

[0021] More preferably, the ring-shaped reinforcing rib extends downward from the lower surface of the coil support part.

[0022] Further, the second mounting disc has a circular outer contour, and comprises a second outer ring and a plurality of magnet mounting parts arranged in the radial direction from the inner side of the second outer ring; adjacent magnet mounting parts are hollowed out.

[0023] Preferably, the central part of the second mounting disc is provided with a second fixed disc, and the extended end of the magnet mounting part is connected with the second fixed disc.

[0024] Preferably, the magnet mounting part comprises a mounting part bottom wall extending in the radial direction, and mounting part side walls extending downward from both sides of the mounting part bottom wall, and the strip-shaped magnet is arranged in the space enclosed by the mounting part bottom wall and the mounting part side walls.

[0025] Further, the plurality of magnet mounting parts and the coil support part are arranged at least partially coincident in the circumferential direction.

[0026] Preferably, the plurality of magnet mounting parts and the coil support part are one-to-one coincident in the circumferential direction.

[0027] Further, a connecting hole is arranged on the first mounting disc, and a connecting part is arranged on the second mounting disc; or, a connecting hole is arranged on the second mounting disc, and a connecting part is arranged on the first mounting disc.

[0028] The connecting part is inserted into the connecting hole and connects the first mounting disc and the second mounting disc;

[0029] Alternatively, the first mounting disc and the second mounting disc are integrally formed.

[0030] Preferably, the first mounting disc and the second mounting disc are spaced apart from each other.

[0031] More preferably, the lower surface of the first mounting disc is provided with a downwardly extending annular reinforcing rib, which is abutted against the upper surface of the second mounting disc; or the first mounting disc and the second mounting disc are integrally connected through the annular reinforcing rib.

[0032] Further, the electromagnetic heating module further comprises a first shielding member arranged above the first mounting disc for preventing the electromagnetic heating coil from being detached from the first mounting disc, and a second shielding member arranged below the second mounting disc for preventing the magnet from being detached from the second mounting disc.

[0033] Preferably, the first shielding member is an upper shielding plate covering the upper surface of the first mounting disc, and the second shielding member is a lower shielding plate covering the lower surface of the second mounting disc.

[0034] More preferably, the electromagnetic heating module further comprises a side wall connecting the upper shielding plate and the lower shielding plate, and the upper shielding plate, the lower shielding plate and the side wall form an encapsulation housing, and the first mounting disc and the second mounting disc are encapsulated in the encapsulation housing.

[0035] Another object of the present application is to provide a clothes treatment device comprising the above-mentioned electromagnetic heating module.

[0036] Preferably, the clothes treatment device further comprises an outer cylinder and an inner cylinder, and the inner cylinder is arranged in the outer cylinder, and the cylinder wall of the inner cylinder is made of a metal material capable of generating eddy current in an alternating magnetic field.

[0037] Preferably, the electromagnetic heating module is arranged below the outer cylinder and connected to the cylinder wall of the outer cylinder.

[0038] More preferably, the electromagnetic heating module is arranged on the cylinder wall of the outer cylinder close to the cylinder bottom of the outer cylinder.

[0039] After adopting the above technical solution, the present application has the following beneficial effects compared with the prior art.

[0040] The magnet on the second mounting disc can shield the magnetic field, preventing the magnetic field from leaking, so that the magnetic field generated by the electromagnetic heating coil can act on the water container to be heated more efficiently, improving the heating efficiency. By arranging the first mounting disc and the second mounting disc and mounting the electromagnetic heating coil and the magnet on the surfaces opposite to each other, the distance between the two can be increased, which is beneficial to heat dissipation of the electromagnetic heating coil, avoiding overheating failure of the electromagnetic heating module and affecting use.

[0041] In the electromagnetic heating module, the first mounting disc and the second mounting disc both have a hollow structure, which can increase the contact area of the electromagnetic heating coil with air and enhance the air flow in the electromagnetic heating module, thereby improving the heat dissipation efficiency of the electromagnetic heating module. The annular reinforcing ribs are arranged to connect the plurality of coil supporting parts into one body, thereby improving the strength of the first mounting disc as a whole.

[0042] In the electromagnetic heating module, the coil supporting part on the first mounting disc and the magnet mounting part on the second mounting disc are circumferentially coincident, so that the hollow regions of the first mounting disc and the second mounting disc are coincident, further enhancing the air circulation in the electromagnetic heating module and improving the heat dissipation efficiency. The first mounting disc and the second mounting disc are arranged in a spaced manner, so that air can flow between the opposite surfaces of the two, thereby achieving better heat dissipation effect.

[0043] The clothes treatment device of the present application is provided with the electromagnetic heating module, which realizes non-contact heating of the water in the inner drum. The electromagnetic heating module is arranged below the outer drum and does not directly contact with water during operation of the clothes treatment device, thereby reducing the safety hazard caused by contact of the electromagnetic heating coil with water. On the other hand, the electromagnetic heating module can heat the bottom region of the inner drum, i.e. the part where the washing water is concentrated, thereby achieving higher heating efficiency.

[0044] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0045] The drawings are part of the present application and serve to provide a further understanding of the present application. The schematic embodiments of the present application and the description thereof serve to explain the present application but do not constitute an improper limitation of the present application. Obviously, the drawings described below are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0046] Figure 1 is a top view structural schematic diagram of the electromagnetic heating module in the first embodiment of the present application;

[0047] Figure 2 is a schematic diagram of section A-A in the present application; Figure 1 ​

[0048] Figure 3 is a partial structure schematic diagram of the electromagnetic heating module in the embodiment one of the present application;

[0049] Figure 4 is a structure schematic diagram of the electromagnetic heating module in the embodiment one of the present application; Figure 3 is an enlarged schematic diagram of B in the embodiment one of the present application;

[0050] Figure 5 is a bottom structure schematic diagram of the electromagnetic heating module in the embodiment one of the present application;

[0051] Figure 6 is a structure schematic diagram of the electromagnetic heating module in the embodiment two of the present application;

[0052] Figure 7 is a structure schematic diagram of the electromagnetic heating module in the embodiment two of the present application;

[0053] Figure 8 is a sectional structure schematic diagram of the electromagnetic heating module in the embodiment two of the present application;

[0054] Figure 9 is a structure schematic diagram of the clothes treatment device in the embodiment three of the present application.

[0055] In the figure: 100, shell; 101, foot; 200, outer cylinder; 210, front part of outer cylinder; 211, drain port; 220, rear part of outer cylinder; 300, shock absorber; 400, electromagnetic heating module; 401, electromagnetic heating coil; 402, magnet; 410, first mounting disc; 411, first outer ring; 412, coil support part; 413, first fixed disc; 414, annular reinforcing rib; 415, support part bottom wall; 416, support part side wall; 417, fixed groove; 418, support part end wall; 420, second mounting disc; 421, second outer ring; 422, magnet mounting part; 423, second fixed disc; 424, connecting part; 425, mounting part bottom wall; 426, mounting part side wall; 430, fixed part; 431, fixed hole; 440, packaging shell; 441, first shell; 442, second shell; 443, heat dissipation hole; 444, water blocking flange; 445, bottom wall; 446, side wall.

[0056] It should be noted that these drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application, and the following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0058] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0059] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0060] Example 1

[0061] like Figures 1 to 5 As shown, the electromagnetic heating module 400 for the clothing processing device described in this embodiment includes:

[0062] A first mounting plate 410 is provided with an electromagnetic heating coil 401 on its upper surface.

[0063] The second mounting plate 420 is disposed below the first mounting plate 410, and a magnet 402 is mounted on the surface of the second mounting plate 420 facing away from the first mounting plate 410.

[0064] In this embodiment, the electromagnetic heating coil 401 on the first mounting plate 410 can generate a high-frequency alternating magnetic field when high-frequency alternating current is applied. When installed inside the clothing treatment device, the generated high-frequency alternating magnetic field can induce an eddy current effect in the metal clothing treatment drum or other water container, causing the clothing treatment drum or other water container to heat up on its own, thereby achieving heating of water under non-contact conditions.

[0065] Both the first mounting plate 410 and the second mounting plate 420 are made of insulating material and are unaffected by magnetic fields. The magnet 402 on the second mounting plate 420 has a shielding effect on the magnetic field, blocking most of the downward-radiating magnetic field and reducing the portion of the magnetic field generated by the electromagnetic heating coil 401 that penetrates the second mounting plate 420, so that almost all of the generated magnetic field radiates upward. This makes the generated high-frequency alternating magnetic field more concentrated, improving its heating efficiency on the clothing treatment drum.

[0066] The electromagnetic heating coil 401 and the magnet 402 are respectively installed on the surfaces of the first mounting disc 410 and the second mounting disc 420, which are away from each other, so that the distance between the electromagnetic heating coil 401 and the magnet 402 is increased, the heat dissipation of the electromagnetic heating coil 401 is facilitated, and the overheating failure of the electromagnetic heating module 400 is avoided, which affects the use.

[0067] In the embodiment, the first mounting disc 410 and the second mounting disc 420 have a circular outer contour, the electromagnetic heating coil 401 is spirally wound on the upper surface of the first mounting disc 410 to form a plurality of concentric circles with the first mounting disc 410 as the common center, and the magnet 402 is a strip-shaped magnet 402 arranged along the radial direction of the second mounting disc 420 and installed on the lower surface of the second mounting disc 420.

[0068] Specifically, the electromagnetic heating coil 401 is formed by winding a copper wire with an insulating layer on the surface, and a small gap is left between the contact pads of the adjacent two turns of the copper wire, and the outermost turn is close to the outer periphery of the first mounting disc 410.

[0069] Preferably, a plurality of strip-shaped magnets 402 are arranged at intervals in the circumferential direction of the second mounting disc 420, and the plurality of strip-shaped magnets 402 are uniformly distributed in the circumferential direction.

[0070] In the above scheme, the electromagnetic heating coil 401 spirally wound to form a plurality of concentric circles is beneficial to generate a uniform magnetic field, so that uniform heating of the clothes treatment drum can be achieved. The plurality of strip-shaped magnets 402 arranged at intervals in the circumferential direction of the second mounting disc 420 can play a uniform shielding effect below the electromagnetic heating coil 401, so that the magnetic field radiated to the clothes treatment drum is more uniform.

[0071] In a further scheme of the embodiment, the first mounting disc 410 includes a first outer ring 411 and a plurality of coil support portions 412 arranged in the radial direction from the inner side of the first outer ring 411. The adjacent coil support portions 412 are hollow.

[0072] In the above scheme, the coil support portions 412 are used to fix the electromagnetic heating coil 401, and the hollow structure between the adjacent coil support portions 412 makes the upper and lower surfaces of the part of the electromagnetic heating coil 401 between the two coil support portions 412 directly contact with the air, which increases the contact area between the electromagnetic heating coil 401 and the air and improves the heat dissipation efficiency.

[0073] In the embodiment, a first fixed disc 413 is arranged at the central part of the first mounting disc 410, and the extension ends of the coil support portions 412 are connected with the first fixed disc 413. By arranging the first fixed disc 413 to support the extension ends of the coil support portions 412, the overall strength of the first mounting disc 410 is enhanced, and the coil support portions 412 near the center of the first outer ring 411 are prevented from being easily broken under external force.

[0074] Specifically, the first fixed disc 413 is arranged with the first outer ring 411 as a common center, the diameter of the circle where the extended end of the coil support part 412 is located is smaller than the diameter of the first fixed disc 413, that is, the coil support part 412 extends to the inside of the first fixed disc 413. The upper surface of the first fixed disc 413 is connected with the bottom surface of the extended end of the coil support part 412, compared with the connection mode that the end of the coil support part 412 is directly fixed on the outer periphery of the first fixed disc 413, the contact area is larger and the connection is more firm.

[0075] In this embodiment, in order to realize the fixation of the electromagnetic heating coil 401, a plurality of fixed grooves 417 (only the fixed groove 417 close to the outer end is shown in the figure) are arranged on the coil support part 412 along the extension direction, and the electromagnetic heating coil 401 is arranged in the fixed groove 417.

[0076] Preferably, the coil support part 412 includes a support part bottom wall 415 extending in the radial direction, and support part side walls 416 extending upward from both sides of the support part bottom wall 415, and the fixed groove 417 penetrates from the upper side of the support part side wall 416 to the support part bottom wall 415.

[0077] More preferably, the support part bottom wall 415 extends upward to form a support part end wall 418 close to one end of the first outer ring 411, and the support part end wall 418 is connected with the inner side surface of the first outer ring 411.

[0078] In the above scheme, the copper wire forming the electromagnetic heating coil 401 is spirally wound and clamped into the fixed groove 417 when passing through the coil support part 412, thereby being fixed on the first mounting disc 410. In order to ensure the fixation effect of the electromagnetic heating coil 401, the fixed groove 417 can be in interference fit with the copper wire forming the electromagnetic heating coil 401, that is, the width of the fixed groove 417 in the radial direction is slightly smaller than the diameter of the copper wire, so that the copper wire can be firmly clamped into the fixed groove 417 and is not easy to fall off.

[0079] The cross section of the coil support part 412 perpendicular to the radial direction is U-shaped, and the insulation between the adjacent two turns of copper wire is realized by the surface-coated insulation layer, so that the coil support part 412 does not need to be provided with a partition plate separating the adjacent two turns of copper wire, that is, the inside of the coil support part 412 can be penetrated in the extension direction, and only the fixed groove 417 needs to be opened on the support part side wall 416, and the structure of the coil support part 412 is simpler.

[0080] The support part end wall 418 is arranged at the end of the coil support part 412 close to the first outer ring 411, which is used to be connected with the inner side surface of the first outer ring 411, and the connection mode of surface contact increases the connection area and the connection is more firm.

[0081] In a further aspect of the embodiment, the first mounting disc 410 further comprises a reinforcing portion connected with the plurality of coil supporting portions 412.

[0082] Specifically, the reinforcing portion is a ring-shaped reinforcing rib 414 coaxial with the first outer ring 411, and the middle portions of the plurality of coil supporting portions 412 are connected as a whole through the ring-shaped reinforcing rib 414.

[0083] Preferably, the ring-shaped reinforcing rib 414 is formed by extending downward from the lower surface of the coil supporting portion 412.

[0084] In the above aspect, the ring-shaped reinforcing rib 414 connects the plurality of coil supporting portions 412 as a whole, supports the middle portions of the coil supporting portions 412 in suspension, and further improves the strength of the first mounting disc 410 as a whole.

[0085] In the embodiment, the ring-shaped reinforcing rib 414 is coaxial with the first outer ring 411 and is located between the first outer ring 411 and the outer periphery of the first fixed disc 413, so that both ends and the middle portion of the coil supporting portion 412 are supported, and the structure is more stable. The electromagnetic heating coil 401 is arranged in the region between the first outer ring 411 and the ring-shaped reinforcing rib 414, and the upper and lower surfaces of the electromagnetic heating coil 401 except the portion mounted on the coil supporting portion 412 are exposed to the air, so that the heat dissipation effect is good.

[0086] The second mounting disc 420 in the embodiment has a structure similar to that of the first mounting disc 410. Specifically, the second mounting disc 420 comprises a second outer ring 421 and a plurality of magnet mounting portions 422 extending radially from the inner side of the second outer ring 421. Adjacent magnet mounting portions 422 are hollow.

[0087] In the above aspect, the second mounting disc 420 also has a hollow structure, so that the electromagnetic heating module 400 is at least partially through from top to bottom, which is more conducive to air circulation and further improves the heat dissipation efficiency of the electromagnetic heating module 400.

[0088] In a preferred aspect of the embodiment, the central portion of the second mounting disc 420 is provided with a second fixed disc 423, and the extended end of the magnet mounting portion 422 is connected with the second fixed disc 423. Specifically, the second fixed disc 423 is coaxial with the second outer ring 421, the magnet mounting portion 422 extends to the inside of the second fixed disc 423, and the lower surface of the second fixed disc 423 is connected with the top surface of the extended end of the magnet mounting portion 422. The face contact mode increases the contact area and the connection is more firm.

[0089] In the embodiment, the magnet mounting portion 422 comprises a mounting portion bottom wall 425 extending in the radial direction, and mounting portion side walls 426 extending downward from both sides of the mounting portion bottom wall 425. The bar-shaped magnet 402 is mounted in the space enclosed by the mounting portion bottom wall 425 and the mounting portion side walls 426 on both sides.

[0090] The cross section of the magnet mounting portion 422 perpendicular to the radial direction is in the shape of a U, and the bar-shaped magnet 402 is mounted in the magnet mounting portion 422, thereby being distributed radially below the electromagnetic heating coil 401, and having a good shielding effect on the magnetic field. To ensure stable mounting of the bar-shaped magnet 402, the bar-shaped magnet 402 can be arranged in the magnet mounting portion 422 in an interference fit, that is, the width of the bar-shaped magnet 402 is slightly greater than the width of the downward opening of the magnet mounting portion 422.

[0091] In a further aspect of the embodiment, the plurality of magnet mounting portions 422 and the coil support portion 412 are arranged at least partially in circumferential overlap.

[0092] Preferably, the plurality of magnet mounting portions 422 and the coil support portion 412 are arranged in one-to-one circumferential overlap.

[0093] The magnet mounting portion 422 and the coil support portion 412 are arranged in circumferential overlap, that is, the hollowed-out regions on the first mounting disc 410 and the second mounting disc 420 are arranged in overlap, so that the area of the region that passes through the electromagnetic heating module 400 from top to bottom is maximized, the effect of enhancing air flow is better, and a more optimal heat dissipation effect is provided as much as possible.

[0094] In the embodiment, the first mounting disc 410 and the second mounting disc 420 can be arranged in two parts and assembled into one by a connecting structure. Specifically, a connecting hole is arranged on the first mounting disc 410, and a connecting portion 424 is arranged on the second mounting disc 420, the connecting portion 424 is inserted into the connecting hole, and the first mounting disc 410 and the second mounting disc 420 are connected.

[0095] Preferably, the connecting hole is arranged at the center of the first fixed disc 413, and the connecting portion 424 is upwardly protruding and inserted into the connecting hole from the center of the second fixed disc 423.

[0096] In the embodiment, the positions of the connecting hole and the connecting portion can also be interchanged, that is, the connecting hole is arranged on the second mounting disc, and the connecting portion is arranged on the first mounting disc, and the first mounting disc and the second mounting disc can also be connected.

[0097] In another aspect of the embodiment, the first mounting disc 410 and the second mounting disc 420 are an integral structure, for example, are integrally injection molded to form the first mounting disc 410 and the second mounting disc 420 connected as one.

[0098] In a further aspect of the embodiment, the first mounting disc 410 and the second mounting disc 420 are spaced apart from each other. The first mounting disc 410 and the second mounting disc 420 are spaced apart from each other to form a gap for air flow, which can further improve the heat dissipation efficiency of the electromagnetic heating module 400.

[0099] In the embodiment, the lower surface of the first mounting disc 410 is provided with an annular reinforcing rib 414 extending downward. If the first mounting disc 410 and the second mounting disc 420 are separately provided, when the first mounting disc 410 and the second mounting disc 420 are assembled into one, the annular reinforcing rib 414 abuts against the upper surface of the second mounting disc 420 to limit the second mounting disc 420, so as to ensure that a gap for air flow is left between the first mounting disc 410 and the second mounting disc 420.

[0100] If the first mounting disc 410 and the second mounting disc 420 are integrally formed by injection molding, the first mounting disc 410 and the second mounting disc 420 can be integrally connected by the annular reinforcing rib 414, and the height of the annular reinforcing rib 414 is the height of the gap between the first mounting disc 410 and the second mounting disc 420.

[0101] In the embodiment, a fixing portion 430 is provided on the outer periphery of the first mounting disc 410 and / or the second mounting disc 420, and a fixing hole 431 is formed in the fixing portion 430. The electromagnetic heating module 400 can be installed inside a clothes treatment device, such as the wall of the outer drum of a washing machine, through the fixing hole 431 in the fixing portion 430, and then high-frequency alternating current is introduced to excite the inner drum to generate eddy current effect, so as to heat the washing water.

[0102] The electromagnetic heating module 400 of the embodiment includes the first mounting disc 410 and the second mounting disc 420 for mounting the electromagnetic heating coil 401 and the magnet 402, respectively, and the first mounting disc 410 and the second mounting disc 420 are spaced apart from each other and mount the electromagnetic heating coil 401 and the magnet 402 on opposite surfaces, so that air flow can exist below the electromagnetic heating coil 401 to ensure the heat dissipation effect of the electromagnetic heating coil 401. The first mounting disc 410 and the second mounting disc 420 both have a hollow structure, so that the upper and lower parts of the electromagnetic heating module 400 are through, which further improves the contact area between the electromagnetic heating coil 401 and the air, enhances the air flow effect, and makes the electromagnetic heating module 400 have a high heat dissipation efficiency. When the electromagnetic heating module 400 is applied to a washing machine to heat the washing water, it is not easy to cause overheating failure to affect use, which improves the user experience.

[0103] Embodiment Two

[0104] As Figures 6 to 8As shown, the embodiment is a further limitation of the above-mentioned embodiment one, the electromagnetic heating module 400 further comprises a first shielding member arranged above the first mounting disc 410 for preventing the electromagnetic heating coil 401 from falling off the first mounting disc 410, and a second shielding member arranged below the second mounting disc 420 for preventing the magnet 402 from falling off the second mounting disc 420.

[0105] Further, the first shielding member is an upper shielding plate covering the upper surface of the first mounting disc 410, and the second shielding member is a lower shielding plate covering the lower surface of the second mounting disc 420.

[0106] In the above scheme, the upper and lower shielding plates correspondingly cover the first mounting disc 410 and the second mounting disc 420, so that the electromagnetic heating coil 401 is clamped between the upper shielding plate and the first mounting disc 410, and the magnet 402 is clamped between the second mounting disc 420 and the lower shielding plate, which clamps and fixes the electromagnetic heating coil 401 and the magnet 402, avoiding the situation that the electromagnetic heating coil 401 or the magnet 402 falls off.

[0107] In the embodiment, the electromagnetic heating module 400 further comprises a side wall 446 connecting the upper shielding plate and the lower shielding plate, and the upper shielding plate, the lower shielding plate and the side wall 446 form an encapsulation housing 440, which encapsulates the first mounting disc 410 and the second mounting disc 420 inside the encapsulation housing 440.

[0108] Specifically, the encapsulation housing 440 comprises a first housing 441 and a second housing 442, and the second housing 442 comprises a bottom wall 445 and a side wall 446 surrounding the bottom wall 445. The first housing 441 is plate-shaped and covers the first mounting disc 410 above, forming the upper shielding plate. The second housing 442 is arranged below the second mounting disc 420, and the bottom wall 445 of the second housing 442 forms the lower shielding plate. The side wall 446 of the first housing 441 is connected with the side wall 446 of the second housing 442, encapsulating the first mounting disc 410 and the second mounting disc 420 inside.

[0109] In the above scheme, the encapsulation housing 440 not only fixes the electromagnetic heating coil 401 and the magnet 402, but also reduces the risk of short circuit caused by the contact between the electromagnetic heating coil 401 and water.

[0110] In a further scheme of the embodiment, the packaging shell 440 is provided with a heat dissipation structure communicating the inner and outer spaces of the packaging shell 440, and a water blocking structure surrounding the heat dissipation structure. The heat dissipation structure communicates the inner and outer spaces of the packaging shell 440, so that air exchange can exist between the inner and outer spaces of the packaging shell 440, avoiding the situation that the electromagnetic heating coil 401 is difficult to dissipate heat due to the existence of the packaging shell 440, thereby preventing the electromagnetic heating module 400 from overheating failure. The water blocking structure is arranged around the heat dissipation structure, which can block water outside the water blocking structure, preventing water from entering the inside of the packaging shell 440 through the heat dissipation structure, achieving good waterproof effect, and avoiding the situation that the electromagnetic heating coil 401 is short-circuited due to contact with water.

[0111] Specifically, the heat dissipation structure is a heat dissipation hole 443 arranged on the bottom wall 445. The bottom wall 445 is partially raised to form a water blocking structure surrounding the heat dissipation hole 443. The heat dissipation hole 443 is preferably provided with multiple heat dissipation holes, which are distributed on the bottom wall 445, so as to further improve the heat dissipation efficiency.

[0112] In one scheme of the embodiment, the bottom wall at the outer periphery of the heat dissipation hole is raised downward to form the water blocking structure. The outer periphery of each heat dissipation hole is raised downward to form multiple independent water blocking structures, which separately surround each heat dissipation hole. If water drops on the surface of the packaging shell, it may flow to the surface of the bottom wall, but will not further flow into the heat dissipation hole, achieving good waterproof effect.

[0113] In another scheme of the embodiment, as shown in Figure 7 the water blocking structure is a water blocking flange 444 formed by the outer periphery of the bottom wall 445 being raised downward.

[0114] In the above scheme, the outer periphery of the bottom wall 445 is raised to form the water blocking flange 444. When water drops on the surface of the packaging shell 440, the water flows to the outer periphery of the packaging shell 440, and then flows downward along the outer side of the water blocking flange 444, without flowing to the surface of the bottom wall 445 where the heat dissipation hole 443 is located, and further without entering the inside of the packaging shell 440 through the heat dissipation hole 443, achieving simple structure and effective waterproof.

[0115] In a preferred scheme of the embodiment, the water blocking flange 444 is arranged obliquely from the outer periphery of the lower surface to the inner side of the lower surface, so as to reduce the area of the region surrounded by the lower edge of the water blocking flange 444, and reduce the possibility of water splashing to the surface of the bottom wall 445 from below.

[0116] In the embodiment, the fixing part 430 is arranged on the packaging shell 440, and specifically, the fixing part 430 is arranged on the side wall 446. The fixing part 430 is arranged on the outer periphery of the packaging shell 440, so that the electromagnetic heating module 400 can be as close as possible to the installation surface during installation, such as being installed as close as possible to the wall of the outer cylinder, and then being closer to the inner cylinder, thereby achieving higher heating efficiency.

[0117] In this embodiment, the first mounting disc 410 and the second mounting disc 420 are integrally covered inside by the packaging shell 440. On the one hand, the electromagnetic heating coil 401 and the magnet 402 are fixed and prevented from falling off from the first mounting disc 410 and the second mounting disc 420. On the other hand, the electromagnetic heating coil 401 is wrapped inside the packaging shell 440, avoiding the short circuit caused by the contact between the electromagnetic heating coil 401 and water.

[0118] Embodiment Three

[0119] As shown in the drawings, the present embodiment provides a clothes treatment device comprising the electromagnetic heating module 400 of the above-mentioned embodiment one. Figure 9

[0120] Specifically, the present embodiment takes a washing machine as an example for illustration. The washing machine comprises an outer drum 200 and an inner drum. The inner drum is arranged in the outer drum 200, and the drum wall of the inner drum is made of a metal material capable of generating eddy current in an alternating magnetic field.

[0121] Preferably, the inner drum of the washing machine of the present embodiment can independently hold washing water during washing. Specifically, no dewatering hole is arranged on the drum wall of the inner drum, and the inner drum is in a closed state during washing, so as to independently hold washing water. A drainage hole is arranged on the drum wall of the inner drum, and the drainage hole is blocked by a sealing assembly during washing. When the inner drum reaches a certain rotating speed, the sealing assembly can open the drainage hole under the action of centrifugal force, so as to realize the discharge of washing water. A drainage port 211 in communication with the drainage structure is arranged on the drum wall of the outer drum 200, and the water discharged from the inner drum enters the outer drum 200 and is then discharged from the washing machine through the drainage port 211 and the drainage structure.

[0122] The drum wall of the inner drum is made of a metal material, and the outer drum 200 is made of a plastic material which does not excite eddy current effect in a magnetic field. The electromagnetic heating module 400 is mounted on the outside of the outer drum 200. As shown in the drawings, after the washing machine starts the heating program, the input voltage, such as 220V household alternating current, is converted into direct current through the bridge rectifier, and then converted into high-frequency alternating current through the IGBT power tube. After inputting into the electromagnetic heating module 400, the electromagnetic heating coil 401 can generate a high-frequency alternating magnetic field. The electromagnetic induction lines of the high-frequency alternating magnetic field can penetrate the outer drum 200 and act on the inner drum made of a metal material, so that the inner drum generates eddy current under the electromagnetic induction. When the eddy current flows against the internal resistance of the inner drum, the conversion from electric energy to heat energy is completed, the inner drum is heated, and the washing water in the inner drum is heated. Figure 1 Figure 9

[0123] ​​​During the heating process, the inner drum is controlled to rotate inside the outer drum 200, so that the inner drum is heated evenly, thereby uniformly transferring heat to the washing water in the inner drum, and the heating effect is better. A temperature sensor is arranged at the bottom of the outer drum 200, and when the temperature detected by the temperature sensor reaches the set temperature, that is, the washing water reaches the predetermined washing temperature, the heating program stops, and the electromagnetic heating module 400 stops heating.

[0124] In a preferred embodiment of the present embodiment, the electromagnetic heating module 400 is arranged below the outer drum 200 and connected to the drum wall of the outer drum 200. Figure 9 The bottom view of the washing machine of the present embodiment is shown, in which the bottom area of the outer shell 100 is removed to show the internal structure of the washing machine. The bottom feet 101 are arranged at the four corners of the bottom surface of the outer shell 100, and the outer drum 200 is supported inside the outer shell 100 by the shock absorber 300. The outer periphery of the electromagnetic heating module 400 is provided with a fixing portion 430, and the fixing holes 431 are formed in the fixing portion 430. The electromagnetic heating module 400 is installed on the drum wall of the outer drum 200 by screwing through the fixing holes 431.

[0125] Since the washing water is located in the bottom area of the inner drum, that is, the inner drum rotating to the bottom directly contacts the washing water, the electromagnetic heating module 400 is installed below the outer drum 200, which can concentrate on heating the bottom area of the inner drum, thereby achieving the purpose of directly heating the washing water, and the heating efficiency is higher. At the same time, it also avoids the problem that the heated area of the inner drum does not contact the washing water, the temperature rises too fast, and the electromagnetic heating module 400 is easily overheated.

[0126] In a further preferred embodiment of the present embodiment, the electromagnetic heating module 400 is arranged on the drum wall of the outer drum 200 close to the area of the drum bottom.

[0127] In the present embodiment, the drum wall of the outer drum 200 includes the outer drum front portion 210 close to one side of the drum port, and the outer drum rear portion 220 connected to the drum bottom. The drain port 211 is arranged in the outer drum front portion 210, and the electromagnetic heating module 400 is installed in the outer drum rear portion 220. The above arrangement allows the electromagnetic heating module 400 and the drain port 211 to be arranged in the lowest area of the drum wall of the outer drum 200, and they do not interfere with each other.

[0128] As Figures 1 to 5 and Figure 9As shown, in the embodiment, when the electromagnetic heating module 400 is installed, the side where the first mounting disc 410 is located is installed towards the cylinder wall of the outer cylinder 200. When the electromagnetic heating module 400 is working, the electromagnetic heating coil 401 can generate a high-frequency alternating magnetic field to excite the inner cylinder to generate eddy current effect, and then heat to heat the washing water. The magnet 402 on the second mounting disc 420 can shield the generated magnetic field, thereby preventing the magnetic field from leaking in the direction away from the inner cylinder, so that the magnetic field generated by the electromagnetic heating coil 401 acts more efficiently on the inner cylinder, improving the heating efficiency.

[0129] The washing machine of the embodiment realizes the heating function of the washing water by setting the electromagnetic heating module 400, realizes the washing water heating purpose of the washing machine without water between the inner cylinder and the outer cylinder 200. The electromagnetic heating module 400 is set below the outer cylinder 200, and does not contact the washing water during the working of the washing machine, reduces the safety hazard brought by the contact of the electromagnetic heating coil 401 with the washing water, and can heat the part of the inner cylinder bottom contacting the washing water, and the heating efficiency is higher.

[0130] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above-mentioned technical content without departing from the scope of the technical solution of the present application, and any simple modification, equivalent change and modification of the above-mentioned technical content within the scope of the technical solution of the present application are still within the scope of the present application.

Claims

1. An electromagnetic heating module for a laundry treatment apparatus, characterized by, The application relates to a magnetic heating device, which comprises: a first installation disc with a circular outer contour, a first outer ring, a plurality of coil supporting parts extending radially from the inner side of the first outer ring, and a first fixed disc arranged in the central part and connected with the extending ends of the coil supporting parts, wherein the upper surface of the first installation disc is provided with electromagnetic heating coils; a second installation disc with a circular outer contour, a second outer ring, a plurality of magnet installation parts extending radially from the inner side of the second outer ring, and a second fixed disc arranged in the central part and connected with the extending ends of the magnet installation parts, wherein the surface of the second installation disc facing away from the first installation disc is provided with magnets; the coil supporting parts are hollowed out between adjacent coil supporting parts, and the magnet installation parts are hollowed out between adjacent magnet installation parts; connection holes are arranged on the first fixed disc, and connection parts are arranged on the second fixed disc; or connection holes are arranged on the second fixed disc, and connection parts are arranged on the first fixed disc; the connection parts are inserted into the connection holes to connect the first installation disc and the second installation disc; the first installation disc is provided with an annular reinforcing rib coaxial with the first outer ring, the central parts of the plurality of coil supporting parts are connected into one body through the annular reinforcing rib, the annular reinforcing rib extends downward from the lower surface of the coil supporting part to form a stop surface on the upper surface of the second installation disc, and the electromagnetic heating coils are arranged in the region between the first outer ring and the annular reinforcing rib. 2.The electromagnetic heating module for a clothes treating apparatus of claim 1, wherein, The electromagnetic heating coils are spirally wound on the upper surface of the first installation disc to form a plurality of concentric circles coaxial with the first installation disc, and the magnets are strip-shaped magnets arranged along the radial direction of the second installation disc. 3.The electromagnetic heating module for a clothes treating apparatus of claim 2, wherein, A plurality of strip-shaped magnets are arranged at intervals in the circumferential direction of the second installation disc. 4.The electromagnetic heating module for a clothes treating apparatus of claim 1, wherein, A plurality of fixing grooves are arranged at intervals on the coil supporting parts along the extending direction of the coil supporting parts, and the electromagnetic heating coils are arranged in the fixing grooves.

5. The electromagnetic heating module for a clothes treatment device according to claim 4, characterized in that, The coil supporting part comprises a supporting part bottom wall extending in the radial direction and supporting part side walls extending upward from the two side edges of the supporting part bottom wall, and the fixing grooves pass through the supporting part side walls on the two sides to the supporting part bottom wall. The coil supporting part extends to the inside of the first fixed disc, and the upper surface of the first fixed disc is connected with the bottom surface of the extending end of the coil supporting part. 6.The electromagnetic heating module for a clothes treating apparatus of claim 5, wherein, The supporting part bottom wall extends upward to form a supporting part end wall at one end close to the first outer ring, and the supporting part end wall is connected with the inner surface of the first outer ring.

7. The electromagnetic heating module for a clothes treatment device according to any one of claims 1-6, characterized in that, The magnet installation part comprises an installation part bottom wall extending in the radial direction and installation part side walls extending downward from the two side edges of the installation part bottom wall, and the magnets are arranged in the space surrounded by the installation part bottom wall and the installation part side walls on the two sides.

8. The electromagnetic heating module for a clothes treatment device according to any one of claims 1-6, characterized in that, The plurality of magnet installation parts and the coil supporting parts are arranged at least partially in coincidence in the circumferential direction.

9. The electromagnetic heating module for a clothes treatment device according to claim 8, characterized in that, The plurality of magnet installation parts and the coil supporting parts are arranged in one-to-one coincidence in the circumferential direction.

10. The electromagnetic heating module for a clothes treatment device according to any one of claims 1-6, characterized in that, The application further comprises a first shielding part arranged above the first installation disc to prevent the electromagnetic heating coils from falling off the first installation disc, and a second shielding part arranged below the second installation disc to prevent the magnets from falling off the second installation disc. 11.The electromagnetic heating module for a clothes treating apparatus of claim 10, wherein, The first shielding member is an upper baffle covering the upper surface of the first mounting disc, and the second shielding member is a lower baffle covering the lower surface of the second mounting disc. 12.The electromagnetic heating module for a clothes treating apparatus of claim 11, wherein, The electromagnetic heating module further comprises a side wall connecting the upper baffle and the lower baffle, and the upper baffle, the lower baffle and the side wall form an encapsulation housing, and the first mounting disc and the second mounting disc are encapsulated in the encapsulation housing. 13.A laundry treating apparatus, characterized by, The electromagnetic heating module comprises the electromagnetic heating module according to any one of claims 1-12. 14.The laundry treatment apparatus of claim 13, wherein Further comprising an outer cylinder and an inner cylinder, the inner cylinder is arranged in the outer cylinder, and the cylinder wall of the inner cylinder is made of a metal material capable of generating eddy current in an alternating magnetic field. 15.The laundry treatment apparatus of claim 14, wherein The electromagnetic heating module is arranged below the outer cylinder and connected with the cylinder wall of the outer cylinder. 16.The laundry treatment apparatus of claim 15, wherein The electromagnetic heating module is arranged on the cylinder wall of the outer cylinder and close to the area of the cylinder bottom of the outer cylinder.

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