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 an encapsulation shell and an electromagnetic heating coil arranged inside the encapsulation shell; a heat dissipation structure is arranged on the encapsulation shell and communicates the inner and outer spaces of the encapsulation shell; and a water blocking structure is arranged around the heat dissipation structure. The electromagnetic heating module is applied to the clothes processing device, can heat a water container made of metal, thereby realizing non-contact heating of water, the electromagnetic heating coil is wrapped by the encapsulation shell, the risk of short circuit caused by the contact between the electromagnetic heating coil and water is reduced, the heat dissipation structure is arranged on the encapsulation shell, and the water blocking structure is arranged around the heat dissipation structure, so that good heat dissipation effect can be realized through the heat dissipation structure, and the water blocking structure prevents water from entering the inside of the encapsulation shell through the heat dissipation structure, thereby achieving good waterproof effect.

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 on 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 inner part of outer drum, which occupies the space of outer drum and affects the capacity of 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 and the surrounding are in high temperature state for a long time, which accelerates the aging of sealing member to some extent, and easily causes sealing failure, so that washing water seeps into the inner part of heating device or seeps out from the installation opening of heating device installed on outer drum, thereby causing safety hazard.

[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 inner part of washing machine shell is low, so condensate water is easily generated on the inner wall of washing machine shell far from the heating device. The inner wall of washing machine shell is installed with wires, which are easily aged in the humid environment for a long time, and may cause sparking and discharging, which may cause burnt smell or installation hazard.

[0004] In recent years, the washing machine industry develops non-porous inner drum washing machine, which is different from the traditional washing machine that stores water in outer drum and clothes in inner drum. The non-porous inner drum washing machine does not set dehydration hole on inner drum, so that the inner drum can independently store washing water during washing process. The above-mentioned mode can avoid the storage of water between inner drum and outer drum during washing process, save the amount of washing water, and greatly avoid the accumulation of dirt between inner drum and outer drum, so as to avoid the dirt between inner drum and outer drum from entering inner drum to pollute clothes, and achieve clean and sanitary washing.

[0005] In order to solve the above-mentioned problems, the existing technology proposes the scheme of applying electromagnetic heating module to heat washing water in washing machine. However, when the electromagnetic heating module is applied to washing machine, there is the risk of contacting with washing water, which may cause short circuit failure of electromagnetic heating coil, and even cause safety hazard. At the same time, the temperature of electromagnetic heating module is high during heating, which may cause failure of electromagnetic heating module due to ineffective heat dissipation, and affect the use. The most effective waterproof mode is to completely seal the electromagnetic heating coil, but this will seriously affect the heat dissipation efficiency and working effect of electromagnetic heating module.

[0006] In view of the above, the present application is proposed. SUMMARY

[0007] The technical problem solved by the present application is to overcome the deficiencies of the prior art, and provide an electromagnetic heating module for a clothes treatment device and a clothes treatment device, which has good heat dissipation and waterproof performance.

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

[0009] An electromagnetic heating module for a clothes treatment device, comprising an electromagnetic heating coil and a packaging shell covering the electromagnetic heating coil, wherein the packaging shell is provided with a heat dissipation structure communicating the inside and outside of the packaging shell, and a water blocking structure surrounding the heat dissipation structure.

[0010] Further, the packaging shell has a lower surface, and the heat dissipation structure is a heat dissipation hole provided on the lower surface; the lower surface is partially raised to form the water blocking structure surrounding the heat dissipation hole.

[0011] Further, the lower surface located at the periphery of the heat dissipation hole is raised downward to form the water blocking structure.

[0012] Further, the water blocking structure is a water blocking flange raised downward from the periphery of the lower surface.

[0013] Further, the water blocking flange is inclinedly arranged from the periphery of the lower surface to the inner side of the lower surface.

[0014] Further, the packaging shell comprises a first shell and a second shell, the second shell comprises a bottom wall and a side wall surrounding the bottom wall, and the first shell is connected with the side wall; the heat dissipation hole is arranged through the bottom wall.

[0015] Further, the first shell and / or the second shell is further provided with a fixing portion, and a fixing hole is formed in the fixing portion.

[0016] Preferably, the fixing portion is raised and arranged on the side wall.

[0017] Further, a first mounting disc is arranged in the packaging shell, and the electromagnetic heating coil is arranged on the surface of the first mounting disc facing away from the heat dissipation hole.

[0018] A second mounting disc is further arranged below the first mounting disc, and a magnet is arranged on the surface of the second mounting disc facing the heat dissipation hole.

[0019] Preferably, the first mounting disc is arranged spaced apart from the second mounting disc.

[0020] Further, the first mounting disc and the second mounting disc each have a circular outer contour.

[0021] The first mounting disc comprises a plurality of radially extending coil support portions for fixing the electromagnetic heating coil, and adjacent coil support portions are arranged with hollows.

[0022] The second mounting disc comprises a plurality of radially extending magnet mounting portions, and the magnets are strip-shaped magnets mounted on the magnet mounting portions, and adjacent magnet mounting portions are arranged with hollows.

[0023] Preferably, the plurality of magnet mounting portions and the coil support portions are arranged at least partially coincident in the circumferential direction.

[0024] More preferably, the plurality of magnet mounting portions and the coil support portions are one-to-one coincident in the circumferential direction.

[0025] Another object of the present application is to provide a clothes treatment device comprising the above-mentioned electromagnetic heating module.

[0026] Preferably, the clothes treatment device further comprises 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.

[0027] Preferably, the electromagnetic heating module is arranged below the outer cylinder and connected to the cylinder wall of the outer cylinder.

[0028] More preferably, the electromagnetic heating module is arranged on the cylinder wall of the outer cylinder close to the area of the cylinder bottom of the outer cylinder.

[0029] After adopting the above technical solution, the present application has the following beneficial effects compared with the prior art.

[0030] In the electromagnetic heating module of the present application, the electromagnetic heating coil is arranged inside the packaging shell to prevent direct contact with washing water, and the heat dissipation structure is arranged to communicate the inside and outside spaces of the packaging shell, so that air can flow in the inside of the packaging shell, thereby achieving effective heat dissipation of the electromagnetic heating coil. The water-blocking structure is arranged around the heat dissipation structure to prevent water from entering the inside of the packaging shell through the heat dissipation structure, and the waterproof effect is good, avoiding the situation that the electromagnetic heating coil is short-circuited due to contact with water.

[0031] In the electromagnetic heating module of the present application, the heat dissipation hole is arranged on the lower surface of the packaging shell, and the risk of water entering from the heat dissipation hole is small, and the lower surface is partially raised to form a water-blocking structure, which is simple in structure and good in water-blocking effect. The lower surface protrusion located at the outer periphery of the heat dissipation hole forms a water-blocking structure, and the water that may exist on the lower surface of the packaging shell is blocked by the water-blocking structure and cannot flow to the heat dissipation hole to enter the inside of the packaging shell.

[0032] In the electromagnetic heating module, the lower surface of the packaging shell is provided with a water retaining flange formed by the outer periphery of the lower surface of the packaging shell. Water on the surface of the packaging shell can directly drip outside the water retaining flange, and cannot flow to the lower surface where the heat dissipation holes are located, and further cannot enter the inside of the packaging shell through the heat dissipation holes, so that effective water prevention can be achieved.

[0033] In the electromagnetic heating module, a magnet capable of shielding a magnetic field is arranged in the packaging shell, so that the leakage of the magnetic field can be prevented, the magnetic field generated by the electromagnetic heating coil can more efficiently act on the water container to be heated, and the heating efficiency can be improved. The first mounting disc and the second mounting disc are arranged at intervals, and the electromagnetic heating coil and the magnet are mounted on the surfaces opposite to each other, so that a space for air flow can be provided around the electromagnetic heating coil, and the heat dissipation efficiency of the electromagnetic heating coil can be further improved.

[0034] In the electromagnetic heating module, the first mounting disc and the second mounting disc both have a hollow structure, so that the contact area between the electromagnetic heating coil and the air can be increased, and the air flow in the electromagnetic heating module can be enhanced, so that the heat dissipation efficiency of the electromagnetic heating module can be improved.

[0035] In the clothes treatment device, the electromagnetic heating module is mounted, so that the water in the inner drum can be heated without contact. The electromagnetic heating module is arranged below the outer drum, and does not directly contact with water during the operation of the clothes treatment device, so that the safety hidden danger caused by the contact between the electromagnetic heating coil and the water can be reduced. On the other hand, the electromagnetic heating module can concentrate on heating the bottom region of the inner drum, that is, the part where the washing water is concentrated, so that the heating efficiency can be higher.

[0036] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0037] The accompanying 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 descriptions thereof serve to explain the present application, but do not constitute an improper limitation on the present application. Obviously, the accompanying 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:

[0038] Figure 1 is a structural schematic view of the electromagnetic heating module in the embodiment of the present application;

[0039] Figure 2 is a structural schematic view of the electromagnetic heating module in another embodiment of the present application;

[0040] Figure 3 is a top view of the electromagnetic heating module in the embodiment of the present application;

[0041] Figure 4 is a bottom view of the electromagnetic heating module in the embodiment of the present application;

[0042] Figure 5 is a schematic view of the section A-A in the embodiment of the present application; Figure 4

[0043] Figure 6 is a side view of the electromagnetic heating module in the embodiment of the present application;

[0044] Figure 7 is a schematic view of the section B-B in the embodiment of the present application; Figure 6

[0045] Figure 8 is a partial structural schematic view of the electromagnetic heating module in the embodiment of the present application without the packaging shell;

[0046] Figure 9 is a bottom view of the electromagnetic heating module in the embodiment of the present application without the packaging shell;

[0047] Figure 10 is a structural schematic view of the clothes treatment device in the second embodiment of the present application.

[0048] In the figure: 100, housing; 101, foot; 200, outer cylinder; 210, front part of outer cylinder; 211, drainage opening; 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 fixing disc; 414, annular reinforcing rib; 415, support part bottom wall; 416, support part side wall; 417, fixing groove; 418, support part end wall; 420, second mounting disc; 421, second outer ring; 422, magnet mounting part; 423, second fixing disc; 424, connecting part; 425, mounting part bottom wall; 426, mounting part side wall; 430, fixing part; 431, fixing hole; 440, packaging shell; 441, first shell; 442, second shell; 443, heat dissipation hole; 444, water blocking flange; 445, bottom wall; 446, side wall.

[0049] 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

[0050] 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 combination with the drawings of the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application. ​​

[0051] 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.

[0052] 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.

[0053] Example 1

[0054] like Figures 1 to 9 As shown, the electromagnetic heating module 400 for the clothing processing device described in this embodiment includes a housing 440 and an electromagnetic heating coil 401 disposed inside the housing 440. The housing 440 is provided with a heat dissipation structure communicating between the inner and outer spaces of the housing 440, and a water-blocking structure surrounding the heat dissipation structure.

[0055] In this embodiment, the electromagnetic heating coil 401 generates a high-frequency alternating magnetic field when high-frequency alternating current is applied. By installing the electromagnetic heating module 400 inside the clothing processing device, the generated high-frequency alternating magnetic field can induce eddy currents in the metal clothing processing drum or other water container, causing the drum or container to heat up, thus achieving contactless water heating. The encapsulation shell 440 is made of an insulating material unaffected by magnetic field excitation, thus not affecting the magnetic field generated by the electromagnetic heating coil 401. Simultaneously, it encloses the electromagnetic heating coil 401 internally, reducing the risk of short circuits caused by contact between the coil and water.

[0056] The heat dissipation structure on the enclosure 440 connects the inner and outer spaces, allowing air exchange between them. This improves the heat dissipation of the electromagnetic heating coil 401 and prevents overheating of the electromagnetic heating module 400. A water-blocking structure surrounds the heat dissipation structure, preventing water from entering the enclosure 440 through the structure. This provides good waterproofing and avoids short circuits caused by water contact between the electromagnetic heating coil 401 and the water.

[0057] In a further aspect of the embodiment, the package shell 440 has a lower surface, and the heat dissipation structure is a heat dissipation hole 443 arranged on the lower surface. The lower surface is partially raised to form a water blocking structure surrounding the heat dissipation hole 443. Preferably, a plurality of heat dissipation holes 443 are arranged on the lower surface of the package shell 440 to further improve the heat dissipation efficiency.

[0058] In an aspect of the embodiment, the lower surface surrounding 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 a plurality of independent water blocking structures, which individually surround each heat dissipation hole. If water drops onto the surface of the package shell, it can flow to the lower surface of the package shell but not further into the heat dissipation hole, achieving good waterproof effect.

[0059] In another aspect of the embodiment, as shown in Figure 2 the water blocking structure is a water blocking flange 444 raised downward from the outer periphery of the lower surface.

[0060] In the above aspect, the outer periphery of the lower surface of the package shell 440 is raised to form the water blocking flange 444. When water drops onto the surface of the package shell 440, it flows to the outer periphery of the package shell 440 and then directly flows downward along the outer side of the water blocking flange 444 without flowing to the lower surface where the heat dissipation hole 443 is located, and further not entering the interior of the package shell 440 through the heat dissipation hole 443. The structure is simple and can achieve effective waterproof.

[0061] In a preferred aspect 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 the possibility of water splashing from below to the lower surface of the package shell 440.

[0062] In the embodiment, the package shell 440 specifically includes a first shell 441 and a second shell 442. The second shell 442 includes a bottom wall 445 and a side wall 446 surrounding the bottom wall 445, and the first shell 441 is connected to the side wall 446. The heat dissipation hole 443 is arranged through the bottom wall 445.

[0063] In the assembly of the electromagnetic heating module 400 of the embodiment, the electromagnetic heating coil 401 is first fixed on the first shell 441 or inside the second shell 442, and then the first shell 441 is buckled to the upper opening of the second shell 442, and preferably sealed at the connection between the first shell 441 and the side wall 446 of the second shell 442.

[0064] In the embodiment, the first shell 441 and / or the second shell 442 is further provided with a fixing portion 430, and a fixing hole 431 is formed in the fixing portion 430. The electromagnetic heating module 400 can be installed inside the clothes treatment device through the fixing hole 431 in the fixing portion 430, such as being installed on the wall of the outer drum of the washing machine, and then exciting the inner drum by passing high-frequency alternating current to generate eddy current effect, thereby achieving the purpose of heating washing water.

[0065] Specifically, the fixing portion 430 is protruded from the side wall 446. The fixing portion 430 is arranged at the outer periphery of the packaging shell 440, so that the electromagnetic heating module 400 can be as close as possible to the wall of the outer drum during installation, thereby achieving higher heating efficiency.

[0066] In the embodiment, the structure inside the packaging shell 440 is specifically as follows.

[0067] The first mounting disc 410 is arranged in the packaging shell 440, and the electromagnetic heating coil 401 is arranged on the surface of the first mounting disc 410 away from the heat dissipation hole 443. The second mounting disc 420 is further arranged below the first mounting disc 410, and the magnet 402 is arranged on the surface of the second mounting disc 420 facing the heat dissipation hole 443.

[0068] In the above scheme, the magnet 402 arranged below the electromagnetic heating coil 401 has the function of shielding the magnetic field, and can block most of the downward radiation of the magnetic field, thereby reducing the downward radiation of the magnetic field generated by the electromagnetic heating coil 401, so that almost all the generated magnetic field is upward radiation. In this way, the generated high-frequency alternating magnetic field can be more concentrated, and the heating efficiency of the clothes treatment drum is improved.

[0069] In the preferred scheme of the embodiment, the first mounting disc 410 and the second mounting disc 420 are arranged in a spaced manner, so that there is a gap between them for air circulation, thereby strengthening the air circulation inside the packaging shell 440 and improving the heat dissipation efficiency of the electromagnetic heating coil 401.

[0070] In the embodiment, the electromagnetic heating module 400 has a disc structure as a whole, and the first mounting disc 410 and the second mounting disc 420 both have a circular outer contour. The electromagnetic heating coil 401 is spirally wound on the upper surface of the first mounting disc 410, forming a plurality of concentric circles with the first mounting disc 410 as the common center. The magnet 402 is a strip-shaped magnet 402, which is arranged along the radial direction of the second mounting disc 420 and is installed on the lower surface of the second mounting disc 420.

[0071] Specifically, the electromagnetic heating coil 401 is formed by winding copper wires with an insulating layer on the surface, and the contact between adjacent two turns of copper wires is either wrapped or has a small gap. The outermost turn is close to the outer periphery of the first mounting disc 410.

[0072] Preferably, a plurality of bar magnets 402 are arranged in the circumferential direction of the second mounting disc 420, and are evenly distributed in the circumferential direction.

[0073] In the above scheme, the spiral winding of the electromagnetic heating coil 401 forming a plurality of concentric circles is advantageous for generating a uniform magnetic field, so that uniform heating of the clothes treatment drum can be achieved. The plurality of bar magnets 402 arranged 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.

[0074] In the embodiment, the first mounting disc 410 includes a plurality of radially extending coil support portions 412 for fixing the electromagnetic heating coil 401, and the adjacent coil support portions 412 are hollowly arranged. The second mounting disc 420 includes a plurality of radially extending magnet mounting portions 422, and the bar magnets 402 are mounted on the magnet mounting portions 422, and the adjacent magnet mounting portions 422 are hollowly arranged.

[0075] In the above scheme, the first mounting disc 410 and the second mounting disc 420 both have a hollow structure, and the electromagnetic heating coil 401 is only partially in contact with the coil support portion 412, and is partially exposed to the air, thereby increasing the contact area of the electromagnetic heating coil 401 with the air, and also enhancing the flow of air to achieve the purpose of improving the heat dissipation efficiency.

[0076] Specifically, the first mounting disc 410 further includes a first outer ring 411, and the outer side end of the coil support portion 412 is fixed to the inner side of the first outer ring 411. The central region of the first mounting disc 410 is provided with a first fixed disc 413 coaxial with the first outer ring 411, and the inner side end of the coil support portion 412 is connected to the first fixed disc 413.

[0077] The inner side end of the coil support portion 412 extends to the inside of the first fixed disc 413, and the upper surface of the first fixed disc 413 is connected to the bottom surface of the inner side end of the coil support portion 412 in a contact surface fitting connection manner, which is more firm.

[0078] To fix the electromagnetic heating coil 401, a plurality of fixing grooves 417 (only the fixing groove 417 near the outer end is shown in the figure) are arranged on the coil support portion 412 in the extension direction thereof, and the electromagnetic heating coil 401 is arranged in the fixing groove 417.

[0079] Preferably, the coil support portion 412 includes a radially extending support portion bottom wall 415, and a support portion side wall 416 extending upward from both sides of the support portion bottom wall 415, and the fixing groove 417 penetrates from the upper edge of the support portion side wall 416 on both sides to the support portion bottom wall 415.

[0080] More preferably, the bottom wall 415 of the support portion extends upward to form a support portion end wall 418 near one end of the first outer ring 411, and the support portion end wall 418 is connected to the inner side surface of the first outer ring 411.

[0081] In the above scheme, the copper wire forming the electromagnetic heating coil 401 is spirally wound and clamped into the fixing groove 417 when passing through the coil support portion 412, thereby being fixed on the first mounting disc 410. To ensure the fixing effect of the electromagnetic heating coil 401, the fixing groove 417 can be in interference fit with the copper wire forming the electromagnetic heating coil 401, that is, the width of the fixing 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 fixing groove 417 and is not easy to fall off.

[0082] The cross section of the coil support portion 412 perpendicular to the radial direction is U-shaped, and the insulation between adjacent two turns of copper wire is realized by the surface-coated insulation layer, so that the coil support portion 412 does not need to be provided with a partition plate separating adjacent two turns of copper wire, that is, the inside thereof can be through in the extension direction, and only the fixing groove 417 needs to be opened on the support portion side wall 416, and the structure of the coil support portion 412 is simpler.

[0083] The support portion end wall 418 is provided at the end of the coil support portion 412 near the first outer ring 411, and is used to be connected to the inner side surface of the first outer ring 411 in a contact surface fitting connection manner, thereby increasing the connection area and making the connection more firm.

[0084] Similar to the structure of the first mounting disc 410, the second mounting disc 420 also includes a second outer ring 421, and the outer side end of the magnet mounting portion 422 is fixed to the inner side of the second outer ring 421. The central region of the second mounting disc 420 is provided with a second fixing disc 423 coaxial with the second outer ring 421, and the inner side end of the magnet mounting portion 422 is connected to the second fixing disc 423.

[0085] The inner side end of the magnet mounting portion 422 extends to the inside of the second fixing disc 423, and the lower surface of the second fixing disc 423 is connected to the top surface of the inner side end of the magnet mounting portion 422. The connection is in a contact surface fitting connection manner, thereby making the connection more firm.

[0086] The magnet mounting portion 422 includes a mounting portion bottom wall 425 extending in the radial direction, and mounting portion side walls 426 extending downward from both side edges of the mounting portion bottom wall 425, and the strip-shaped magnet 402 is mounted in the space surrounded by the mounting portion bottom wall 425 and the mounting portion side walls 426 on both sides.

[0087] The magnet mounting portion 422 is in a U shape in a cross section perpendicular to the diameter direction, and the strip-shaped magnet 402 is mounted in the magnet mounting portion 422, so that the strip-shaped magnet 402 is distributed radially below the electromagnetic heating coil 401, and the shielding effect on the magnetic field is good. In order to ensure the stable mounting of the strip-shaped magnet 402, the strip-shaped magnet 402 can be arranged in the magnet mounting portion 422 in an interference fit, that is, the width of the strip-shaped magnet 402 is slightly larger than the width of the downward opening of the magnet mounting portion 422.

[0088] In a preferred embodiment of the present embodiment, the plurality of magnet mounting portions 422 and the coil support portions 412 are arranged at least partially coincident in the circumferential direction.

[0089] More preferably, the plurality of magnet mounting portions 422 and the coil support portions 412 are one-to-one coincident in the circumferential direction.

[0090] The magnet mounting portion 422 and the coil support portion 412 are coincident in the circumferential direction, that is, the hollowed-out regions on the first mounting disc 410 and the second mounting disc 420 are arranged coincidently, so that the area of the region passing through the inside of the packaging shell 440 is maximized, the enhancement effect of air circulation is better, and the more optimal heat dissipation effect is provided as much as possible.

[0091] In a further aspect of the present embodiment, the first mounting disc 410 further comprises a reinforcing portion connected with the plurality of coil support portions 412.

[0092] Specifically, the reinforcing portion is a ring-shaped reinforcing rib 414 with the first outer ring 411 as a common center, and the middle portions of the plurality of coil support portions 412 are connected as a whole through the ring-shaped reinforcing rib 414.

[0093] Preferably, the ring-shaped reinforcing rib 414 is formed downwardly from the lower surface of the coil support portion 412.

[0094] In the above aspect, the ring-shaped reinforcing rib 414 connects the plurality of coil support portions 412 as a whole, which supports the suspended middle portion of the coil support portion 412, and further improves the strength of the first mounting disc 410 as a whole.

[0095] In the present embodiment, the ring-shaped reinforcing rib 414 is arranged with the first outer ring 411 as a common center, and is located between the outer periphery of the first outer ring 411 and the first fixed disc 413, so that the two ends and the middle portion of the coil support 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 remaining portion are exposed to the air except for the portion mounted on the coil support portion 412, so that the heat dissipation effect is good.

[0096] In the embodiment, the first mounting disc 410 and the second mounting disc 420 can be separately arranged and assembled into one by the connecting structure. Specifically, the first mounting disc 410 is provided with a connecting hole, and the second mounting disc 420 is provided with a connecting part 424 which is inserted into the connecting hole to connect the first mounting disc 410 and the second mounting disc 420.

[0097] Preferably, the connecting hole is arranged at the center of the first fixing disc 413, and the connecting part 424 is upwardly protruded from the center of the second fixing disc 423 and inserted into the connecting hole.

[0098] In the embodiment, the positions of the connecting hole and the connecting part can also be interchanged, that is, the connecting hole is arranged on the second mounting disc and the connecting part is arranged on the first mounting disc, and the first mounting disc and the second mounting disc can also be connected.

[0099] Further, when the first mounting disc 410 and the second mounting disc 420 are assembled into one, the annular reinforcing rib 414 is abutted against the upper surface of the second mounting disc 420 to limit the second mounting disc 420 and ensure that the first mounting disc 410 and the second mounting disc 420 leave a gap for air circulation.

[0100] The first mounting disc 410 and the second mounting disc 420 can also be fixed in the packaging shell 440 by arranging a mounting groove at the center of the lower surface of the first shell 441, and the connecting part 424 on the second mounting disc 420 is inserted into the mounting groove through the connecting hole on the first mounting disc 410.

[0101] In another scheme of the embodiment, the first mounting disc 410 and the second mounting disc 420 are integrated, which are made into one by one-piece injection molding.

[0102] The first mounting disc 410 and the second mounting disc 420 can be integrally connected by the annular reinforcing rib 414, and other structures are not needed to connect the two into one. 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.

[0103] The electromagnetic heating module 400 of this embodiment includes a housing 440, and an electromagnetic heating coil 401 is disposed inside the housing 440. Heat dissipation holes 443 are provided on the housing 440 to allow air circulation inside and outside the housing, thereby improving the heat dissipation effect of the electromagnetic heating coil 401 and preventing overheating. A water-blocking flange 444 is also provided on the housing 440. The water-blocking flange 444 protrudes from the outer periphery of the lower surface of the housing 440, surrounding the heat dissipation holes 443 on the lower surface inside the water-blocking flange 444. This prevents washing water from entering the housing 440 through the heat dissipation holes 443 and causing a short circuit in the electromagnetic heating coil 401.

[0104] Example 2

[0105] like Figure 10 As shown, this embodiment provides a clothing processing device, including the electromagnetic heating module 400 described in Embodiment 1 above.

[0106] Specifically, this embodiment uses a washing machine as an example for illustration. The washing machine includes an outer drum 200 and an inner drum, wherein the inner drum is disposed inside the outer drum 200, and the wall of the inner drum is made of a metal material that can generate eddy currents in an alternating magnetic field.

[0107] Preferably, in this embodiment, the inner drum of the washing machine can independently hold the washing water during washing. Specifically, the inner drum wall does not have a dewatering hole and is in a closed state during the washing process, allowing it to independently hold the washing water. A drain hole is provided on the inner drum wall. This drain hole is blocked by a sealing component during the washing process. When the inner drum reaches a certain rotation speed, the sealing component can open the drain hole under centrifugal force, allowing the washing water to drain out. A drain outlet 211, communicating with the drainage structure, is provided on the outer drum wall of the outer drum 200. Water drained from the inner drum enters the outer drum 200 and is then discharged from the washing machine via the drain outlet 211 and the drainage structure.

[0108] The inner cylinder's wall is made of metal, while the outer cylinder 200 is made of plastic, which does not induce eddy currents in a magnetic field. An electromagnetic heating module 400 is installed on the exterior of the outer cylinder 200. Figure 5 and Figure 10 As shown, after the washing machine starts the heating program, the input voltage, such as 220V household AC, is converted into DC by a bridge rectifier, and then into high-frequency AC by an IGBT power transistor. This DC is then input to the electromagnetic heating module 400, where the electromagnetic heating coil 401 generates a high-frequency alternating magnetic field. The electromagnetic induction lines of this high-frequency alternating magnetic field penetrate the outer drum 200 and act on the metal inner drum, causing eddy currents to be generated in the inner drum under electromagnetic induction. As these eddy currents overcome the internal resistance of the inner drum, they convert electrical energy into heat energy, thus heating the inner drum and consequently the washing water.

[0109] 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.

[0110] 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 10 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.

[0111] 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.

[0112] 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.

[0113] 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.

[0114] As Figures 1 to 10As shown, in the embodiment, when the electromagnetic heating module 400 is installed, the first shell 441 is installed on the side facing 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 the washing water. The magnets 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.

[0115] The heat dissipation holes 443 are arranged on the surface of the packaging shell 440 away from the cylinder wall of the outer cylinder 200. Even if the outer cylinder 200 leaks water, the washing water is not easy to enter the inside of the packaging shell 440 through the heat dissipation holes 443. The water retaining flange 444 protrudes downward from the lower surface of the packaging shell 440. The washing water that drops on the packaging shell 440 flows outward, and then can directly drop along the outer surface of the water retaining flange 444 without flowing to the lower surface of the packaging shell 440 through the water retaining flange 444, thereby preventing the washing water from entering the inside of the packaging shell 440 through the heat dissipation holes 443, causing a short circuit failure of the electromagnetic heating coil 401.

[0116] The washing machine of the embodiment realizes the heating function of the washing water by arranging the electromagnetic heating module 400, and realizes the purpose of heating the washing water of the washing machine without water between the inner cylinder and the outer cylinder 200. The electromagnetic heating module 400 is arranged below the outer cylinder 200 and does not contact the washing water during the operation of the washing machine, and the electromagnetic heating coil 401 is wrapped by the packaging shell 440, which reduces the safety hazard caused by the contact between the electromagnetic heating coil 401 and the washing water, and can heat the part of the bottom of the inner cylinder that contacts the washing water, with higher heating efficiency. The lower surface of the packaging shell 440 is provided with heat dissipation holes 443 to improve the heat dissipation efficiency, and the water retaining flange 444 prevents the washing water from flowing into the inside of the packaging shell 440 through the heat dissipation holes 443, so that the electromagnetic heating module 400 has good heat dissipation and waterproof performance at the same time, ensuring the stable operation of the heating program of the washing machine.

[0117] The above only describes the preferred embodiments of the present application, and does not limit the present application in any form. Although the present application has been disclosed as the above preferred embodiments, 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 technical solution of the present application, and any simple modification, equivalent change and modification of the above-mentioned embodiments based on the technical essence of the present application are still within the scope of the present application.

Claims

1. An electromagnetic heating module for a laundry treatment apparatus comprising an encapsulation housing and an electromagnetic heating coil disposed inside the encapsulation housing, characterized in that, The packaging shell is provided with a heat dissipation structure communicating the inner and outer spaces of the packaging shell, and a water blocking structure surrounding the heat dissipation structure; the packaging shell has a lower surface, and the heat dissipation structure is a heat dissipation hole provided on the lower surface; The packaging shell is provided with: The first mounting disc has a circular outer contour, and the electromagnetic heating coil is arranged on the surface of the first mounting disc facing away from the heat dissipation hole; The second mounting disc is arranged below the first mounting disc in a spaced manner, has a circular outer contour, and the surface of the second mounting disc facing the heat dissipation hole is provided with a magnet; The first mounting disc includes a plurality of radially extending coil support portions for fixing the electromagnetic heating coil, and the adjacent coil support portions are hollowly arranged; the first mounting disc further includes a first outer ring, and the outer side end portions of the coil support portions are fixed to the inner side of the first outer ring; the central region of the first mounting disc is provided with a first fixed disc coaxial with the first outer ring, and the inner side end portions of the coil support portions are connected to the first fixed disc; The second mounting disc includes a plurality of radially extending magnet mounting portions, and the magnet is a strip-shaped magnet mounted on the magnet mounting portion; the adjacent magnet mounting portions are hollowly arranged; the second mounting disc further includes a second outer ring, and the outer side end portions of the magnet mounting portions are fixed to the inner side of the second outer ring; the central region of the second mounting disc is provided with a second fixed disc coaxial with the second outer ring, and the inner side end portions of the magnet mounting portions are connected to the second fixed disc; One of the first fixed disc and the second fixed disc is provided with a connecting hole, and the other is provided with a connecting portion, and the connecting portion is inserted into the connecting hole. 2.The electromagnetic heating module for a clothes treating apparatus of claim 1, wherein, The lower surface is partially raised to form a water blocking structure surrounding the heat dissipation hole. 3.The electromagnetic heating module for a clothes treating apparatus of claim 2, wherein, The lower surface of the outer periphery of the heat dissipation hole is downwardly raised to form the water blocking structure. 4.The electromagnetic heating module for a clothes treating apparatus of claim 2, wherein, The water blocking structure is a water blocking flange formed by downwardly raising the outer periphery of the lower surface.

5. The electromagnetic heating module for a clothes treatment device according to claim 4, characterized in that, The water blocking flange is arranged obliquely from the outer periphery of the lower surface to the inner side of the lower surface. 6.The electromagnetic heating module for a clothes treating apparatus of claim 2, wherein, The packaging shell includes a first shell and a second shell, the second shell includes a bottom wall and a side wall surrounding the bottom wall, and the first shell is connected with the side wall; the heat dissipation hole is arranged through the bottom wall.

7. The electromagnetic heating module for a clothes treatment device according to claim 6, characterized in that, The first shell and / or the second shell are further provided with a fixing portion, and a fixing hole is formed in the fixing portion.

8. The electromagnetic heating module for a clothes treatment device according to claim 7, characterized in that, The fixing portion is raised from the side wall.

9. The electromagnetic heating module for a clothes treatment device according to any one of claims 1-8, characterized in that, The plurality of magnet mounting portions and the coil support portions are arranged at least partially coincident in the circumferential direction; The inner side end portions of the coil support portions extend 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 inner side end portions of the coil support portions; The coil support portion is provided with a support portion end wall at the end portion close to the first outer ring, for connecting with the inner side surface of the first outer ring. 10.The electromagnetic heating module for a clothes treating apparatus of claim 9, wherein, The plurality of magnet mounting portions and the coil support portions are one-to-one corresponding and coincident in the circumferential direction. 11.A laundry treating apparatus comprising an outer tub and an inner tub, the inner tub being disposed within the outer tub, characterized in that, Further comprising the electromagnetic heating module of any one of claims 1-10; the cylinder wall of the inner cylinder is made of a metal material capable of generating eddy current in an alternating magnetic field; The electromagnetic heating module is arranged below the outer cylinder and connected with the cylinder wall of the outer cylinder; the heat dissipation hole is arranged on the surface of the packaging shell facing away from the cylinder wall of the outer cylinder. 12.The laundry treating apparatus of claim 11, wherein The electromagnetic heating module is arranged on the cylinder wall of the outer cylinder close to the area of the cylinder bottom of the outer cylinder.

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