CN215628828U - Heating device for household appliances - Google Patents

Abstract

The utility model discloses a heating device of a household appliance, belonging to the technical field of household appliances, comprising: the heater is provided with a base, a heating part arranged on one side of the base and a wiring part arranged on the other side of the base and connected with the heating part; and a shield member that provides protection for the wire connection portion; the first fixing structure is used for mounting the base on the household appliance; and the second fixed structure is used for installing the protection piece on the base, so that the assembly and disassembly of the protection piece on the base can be independently carried out relative to the assembly and disassembly of the base on the household appliance, the base and the protection piece are respectively and independently arranged, the mutual interference of the base and the protection piece after assembly is reduced, when the protection piece needs to be repaired or replaced, only the second fixed structure needs to be disassembled, the stability of the heater in the household appliance cannot be influenced, when the household appliance is assembled, the base is firstly arranged on the household appliance, the wiring is carried out, and finally the protection piece is arranged, so that the influence of the protection piece on the wiring is eliminated.

Description

Heating device for household appliances

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of household appliances, in particular to a heating device of a household appliance.

[ background of the utility model ]

Domestic appliance, like washing machine etc. in order to promote the washing effect, inside can install the heater that has the electrical heating function usually, is equipped with the heating part to washing water heating and the wiring part with the connection of electric lines on the heater, in case near wiring part soaks or ageing easy electric leakage arouses the conflagration, and the fire behavior is very easy to be spread to other parts of washing machine rapidly from the heater position, has great potential safety hazard. In view of the above problems, a protection part is provided near the middle connection part of the washing machine to block water leaked from the washing machine, and at the same time, the fire is limited in a small range to prevent the fire from spreading to the whole washing machine, thereby reducing the potential safety hazard.

[ Utility model ] content

The present invention relates to a heating device for household appliances, which at least partially solves the above technical problem.

In order to solve the technical problems, the utility model adopts the following technical scheme:

heating device of a household appliance, comprising:

the heater is provided with a base, a heating part arranged on one side of the base and a wiring part arranged on the other side of the base and connected with the heating part; and the number of the first and second groups,

a shield member that provides protection to the wire connection portion; and the number of the first and second groups,

the first fixing structure is used for mounting the base on the household appliance; and the number of the first and second groups,

and a second fixing structure for mounting the protection member on the base so that the protection member can be independently attached to and detached from the base with respect to the base.

Preferably, the first fixing structure includes an elastic body, and the household appliance has a through hole adapted to the elastic body, and the elastic body is fixed in the through hole by being expanded under pressure.

Preferably, the first fixing structure further includes a first seat, a second seat, and a fastening component, the fastening component provides an acting force for the first seat and the second seat to approach each other, and the elastic body is clamped and pressurized by the first seat and the second seat to expand.

Preferably, the fastening assembly comprises a first connecting piece and a first locking piece, one end of the first connecting piece is connected with the first seat body, and the other end of the first connecting piece penetrates through the second seat body and is in threaded fit connection with the first locking piece.

Preferably, the second fixing structure comprises a second locking member in threaded fit connection with the first connecting member, and the protection member is provided with a mounting hole, and the first connecting member penetrates through the mounting hole and is locked by the second locking member.

Preferably, the second fixing structure comprises a second connecting member and a second locking member, the protecting member is provided with a mounting hole, and the second connecting member penetrates through the mounting hole and is in threaded fit connection with the second locking member.

Preferably, the protection member includes a mounting portion and a protection portion, and the mounting portion is fixed to the base by the second fixing structure.

Preferably, the protector provides protection at least above the wire portion.

Preferably, the mounting portion is provided with a positioning hole, the base is provided with a positioning protrusion, and the positioning protrusion penetrates through the positioning hole and is matched with at least part of the hole wall of the positioning hole.

Preferably, the wire connecting portion includes a plurality of wire connecting terminals, and at least one of the wire connecting terminals protrudes from the base surface to form the positioning projection.

Preferably, a portion of the mounting portion extends toward the base and abuts against a peripheral edge of the base.

Preferably, the protection part comprises a first protection part and a second protection part, the first protection part is in a flat plate shape, and the first protection part and the second protection part have a height difference so as to form an installation avoiding space above the second protection part.

Preferably, a horizontal projection of the wire connecting portion is entirely located within a horizontal projection of the shield portion.

The other technical scheme adopted by the utility model is as follows:

the household appliance comprises the heating device in any technical scheme.

Preferably, the household appliance is a laundry treating apparatus including a tub and a washing tub rotatably disposed in the tub, and the pedestal is fixed to the tub.

The beneficial effect of this scheme of adoption:

based on protection part and heater adopt same fixed knot to construct the loading and unloading that leads to the protection piece among the prior art to influence the problem of heater stability, the installation of base and protection piece among this scheme heating device is independently gone on through first fixed knot structure and second fixed knot structure respectively, reduce the mutual interference of assembly back base and protection piece, when the protection piece needs to be repaired or changed, only need pull down the second fixed knot structure can, first fixed knot structure still can be in the fastening state, can not exert an influence to the stability of heater in domestic appliance.

First fixed knot constructs includes the elastomer, the adaptation has on the domestic appliance the through-hole of elastomer, the elastomer pressurized inflation and be fixed in the through-hole, realize the installation of base on the domestic appliance through the interference fit of elastomer pressurized inflation back and through-hole pore wall, the cooperation is inseparable, is difficult for droing or rocking, and stability is high, and the elastomer has good sealed effect to the through-hole, prevents that washing water from flowing to the wiring part in the through-hole, and simultaneously, elastomer and through-hole are the flexonics, compare in the rigid fit of other connected modes, the flexonics can reduce the wearing and tearing to the through-hole, extension domestic appliance's life.

The first fixing structure further comprises a first seat body, a second seat body and a fastening assembly, the fastening assembly provides acting force for enabling the first seat body and the second seat body to be close to each other, the elastic body is clamped and pressurized by the first seat body and the second seat body to expand, the elastic body is clamped between the first seat body and the second seat body, the first seat body and the second seat body are close to each other and extrude the elastic body through the fastening effect of the fastening assembly, the elastic body radially expands along the through hole, and therefore interference fit with the hole wall is achieved.

Fastening components includes first connecting piece and first retaining member, first connecting piece one end is connected first pedestal, the other end passes the second pedestal and with first retaining member screw-thread fit connects, through aforementioned connected mode, the first retaining member of spiral shell promotes the second pedestal and removes and extrude the elastomer to first pedestal direction and make it along radial expansion and through screw-thread fit with its locking in this position department, stability is high, the integrative multi-purpose of first retaining member has simultaneously and compresses tightly and locking function, do not need additionally to set up to compress tightly or the locking device, reduced and required and cost to hardware, simplified structure, screw-thread fit mode, be convenient for assemble and dismantle, do benefit to the operation.

The second fixed knot construct include with the second retaining member that first connecting piece screw-thread fit is connected, be equipped with the mounting hole on the protection piece, first connecting piece runs through the mounting hole is locked by the second retaining member, through aforementioned cooperation mode, installs the protection piece between first retaining member and second retaining member, reduces interference and the influence between base and the protection piece, second retaining member and first connecting piece screw-thread fit, be convenient for install and dismantle, first fixed knot construct and the first connecting piece of second fixed knot structure sharing, simplified structure saves the cost, has improved whole heating device's installation intensity.

The second fixed knot constructs including second connecting piece and second retaining member, be equipped with the mounting hole on the guard piece, the second connecting piece runs through the mounting hole and with second retaining member screw-thread fit is connected, through aforementioned cooperation mode, installs the guard piece between first retaining member and second retaining member, and first fixed knot constructs and second fixed knot constructs independently more, reduces interference and the influence between base and the guard piece, and second retaining member and second connecting piece screw-thread fit are convenient for install and dismantle.

The protection piece comprises an installation part and a protection part, the installation part is fixed on the base through the second fixing structure, and the installation of the protection piece on the household appliance is realized through the installation part.

The shield portion provides protection at least above the wire portion to prevent the washing water from being immersed or the fire from spreading.

Be equipped with the locating hole on the installation department, it is protruding to be equipped with the location on the base, the location is protruding to run through the locating hole and with the cooperation of at least partial pore wall of locating hole realizes quick accurate location through the cooperation of protruding and locating hole of location, and the pore wall cooperation carries out circumference spacing to the installation department simultaneously to prevent that second retaining member spiral shell from moving in-process protection piece and rotating along with it, make the protection piece stabilize in mounted position department, improve the installation accuracy.

The wiring part comprises a plurality of wiring terminals, at least one wiring terminal protrudes out of the surface of the base to form the positioning protrusion, the heating device is used as the positioning protrusion, a positioning part is not needed to be additionally arranged, the wiring part is integrated and multipurpose, the structure of the device is simplified, materials and processing cost are saved, the weight is reduced, an area is not needed to be reserved for avoiding the installation part, and the wiring part is more beneficial to the arrangement of the wiring terminals.

The part of installation department extends and offsets with the base periphery towards the base direction to spacing installation department circumference prevents that the installation department from rotating.

The protection part comprises a first protection part and a second protection part, the first protection part is flat, and the first protection part and the second protection part have a height difference, so that an installation avoiding space is formed above the second protection part to avoid components at the rear part of the household appliance, such as a motor support for installing a motor and the like.

The horizontal plane projection of the wiring part is completely positioned in the horizontal plane projection of the protection part, so that the wiring part is completely positioned in the protection range of the protection part, and effective and comprehensive protection is performed.

The household appliance comprises the heating device, so that the household appliance also has the beneficial effects of the heating device.

The household appliance is a clothes treatment device, the clothes treatment device comprises a water containing barrel and a washing barrel rotatably arranged in the water containing barrel, the base is fixed on the water containing barrel, the heating part extends into the water containing barrel to heat washing water in the water containing barrel, the wiring part and the protection part are positioned on the rear side of the water containing barrel, and the protection part protects the wiring part.

These features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.

[ description of the drawings ]

The utility model is further described with the following drawings:

fig. 1 is a schematic view of a rear structure of a tub of a drum washing machine according to an embodiment of the present invention.

Fig. 2 is a partially enlarged view of fig. 1.

Fig. 3 is a schematic perspective view of a heating device according to an embodiment of the present invention.

Fig. 4 is a partial cross-sectional view of a heating device in accordance with an embodiment of the present invention.

Fig. 5 is a perspective view of a protection device according to an embodiment of the utility model.

Reference numerals:

a water containing barrel 001; a through hole 0011;

a heating device 002;

a heater 1; a base 101; a heating section 102; a connection terminal 103; a temperature sensor terminal 1031;

a guard 2; a mounting portion 201; mounting holes 2011; positioning holes 2012; a guard portion 202; a first shield portion 2021; a second shield portion 2022; an extension 203;

a second locking member 3;

a first base 401; a second seat 402; an elastic body 403; a first connector 404; a first securing member 405.

[ detailed description ] embodiments

The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The present invention will be described below by taking a drum washing machine as an example, but those skilled in the art will understand that the present invention is also applicable to other clothes treatment apparatuses or other household appliances.

Referring to fig. 1, the drum washing machine includes: a cabinet (not shown in the drawings), a tub 001 installed within the cabinet, and a washing tub rotatably disposed in the tub 001; and a water inlet unit connected to an external water source for supplying washing water. More specifically, the above-mentioned tub 001 is generally hung within a body of the laundry care apparatus, and the washing tub is rotatably disposed within the tub 001 in such a manner that a rotation axis direction thereof is horizontal or inclined downward from the horizontal direction toward the rear; the front parts of the water containing barrel 001 and the washing barrel are both provided with openings for taking and putting clothes, and the inner spaces of the water containing barrel 001 and the washing barrel can be communicated through the front opening of the washing barrel; in general, a tub wall of a washing tub is provided with a perforated hole communicating with the tub 001, and thus, the tub 001 and the inner space of the washing tub can be communicated through a front opening of the washing tub or the perforated hole of the tub wall thereof, and the laundry care apparatus is constructed as described above with reference to the related art drum washing machine.

In order to improve the washing effect of the washing machine, as shown in fig. 1 and 2, a heating device 002 is generally installed inside the washing machine to heat the washing water inside the washing machine cabinet to a washing temperature that can make the cleaning effect of the detergent good and minimize the damage to the laundry, the heating device 002 includes a heater 1, the heater 1 has a base 101, a heating portion 102 provided at one side of the base 101 and a wiring portion provided at the other side of the base 101 and connected to the heating portion 102, the heater 1 is fixed on the tub 001 through the base 101, the heating portion 102 is deep into the washing water in the tub 001, the heating portion 102 is a heating pipe or the like, the wiring portion and related connecting wires are accommodated at the rear side of the tub 001 and between the tub 001 and the cabinet, and the wiring portion is connected to a power supply wire through the connecting wire to supply power to the heater 1, wherein the heating portion 102 is immersed in the washing water, however, once the wiring portion is accidentally immersed in water or the circuit is aged, short circuit, electric leakage or fire occurs, and therefore, in order to prevent water leakage and avoid complete machine combustion, as shown in fig. 1, 2 and 3, a protection member 2 is arranged near the wiring portion to protect the wiring portion, and prevent washing water from immersing or fire from spreading.

In the prior art, when the heating device 002 is assembled, the protection member 2 and the base 101 are close to each other and assembled to the washing machine together through the same fixing structure, the assembling position, the direction and the stability of the protection member and the base 101 need to be considered, the operation difficulty is high, the interference between the protection member 2 and the base 101 is large after the protection member is installed, when the protection member 2 is disassembled, the fixing structure needs to be disassembled, and the heater 1 can also loosen or fall off.

In view of the above problem, referring to fig. 4, according to an embodiment of the present invention, the base 101 and the protection member 2 of the heating device 002 are independently installed through the first fixing structure and the second fixing structure, so as to reduce the mutual interference between the base 101 and the protection member 2 after assembly, and when the protection member 2 needs to be repaired or replaced, only the second fixing structure needs to be removed, and the first fixing structure can still be in a fastened state, which does not affect the stability of the heater 1 in the household appliance. Meanwhile, when the household appliance is assembled in the embodiment, the base 101 is installed on the household appliance, then the wiring is performed, and finally the protection part 2 is installed, so that the influence of the protection part 2 on the wiring is eliminated, the operation difficulty is reduced, and the assembly efficiency is improved.

The specific structure of the first fixing structure and the installation manner of the heater 1 are as follows:

referring to fig. 4, the first fixing structure includes a first seat 401, a second seat 402, a fastening component and an elastic body 403, the elastic body 403 is clamped between the first seat 401 and the second seat 402, a through hole 0011 adapted to the elastic body 403 is formed in the household appliance, the fastening component provides an acting force for the first seat 401 and the second seat 402 to approach each other, the first seat 401 and the second seat 402 approach each other and press the elastic body 403 through a fastening action of the fastening component, so that the elastic body 403 expands along a radial direction of the through hole 0011 to be fixed in the through hole 0011 in an interference fit with a hole wall, the fixing manner is tight in fit, not easy to fall off or shake, and high in stability, the elastic body 403 has a good sealing effect on the through hole 0011 to prevent washing water from flowing into a portion from the through hole 0011, and meanwhile, the elastic body 403 and the through hole 0011 are in a flexible fit, compared with a rigid fit of other connection manners, the flexible matching can reduce the abrasion to the through hole 0011 and prolong the service life of the household appliance.

The fastening assembly specifically comprises a first connecting piece 404 and a first locking piece 405, one end of the first connecting piece 404 is connected with the first seat body 401, the other end of the first connecting piece passes through the second seat body 402 and is in threaded fit connection with the first locking piece 405, the first connecting piece 404 is preferably a screw, the first locking piece 405 is preferably a nut, through the connection mode, the screw nut pushes the second seat body 402 to move towards the first seat body 401 and presses the elastic body 403 to expand along the radial direction and lock the elastic body at the position through the matching of screw teeth between the first connecting piece 404 and the nut, the stability is high, the nut is integrated and multipurpose, meanwhile, the pressing and locking functions are achieved, pressing or locking devices do not need to be additionally arranged, the requirement and the cost for hardware are reduced, the structure is simplified, the threaded fit mode is convenient to assemble and disassemble, and the operation is facilitated.

Of course, in other embodiments, the cooperation of first connecting rod and first retaining member is not limited to screw nut screw-thread fit mode, also can be the cooperation mode of connecting rod and annular retaining member, annular retaining member cover is on the connecting rod, move to suitable position department and hold tightly again to first pedestal orientation under the effect of external thrust, set up anti-skidding structure between connecting rod and the annular retaining member, in order to guarantee that annular retaining member stabilizes in the suitable position department of first connecting rod, fastening component as long as can realize first retaining member move on the first connecting rod and lock can.

Of course, in other embodiments, the first fixing structure is not limited to the above structure, and only one mounting seat may be provided on the base, the mounting seat is fixed on the edge of the through hole to implement the mounting of the heater, and a gasket is provided between the mounting seat and the edge of the through hole to prevent the washing water from flowing out.

The specific structure of the second fixing structure and the manner of mounting the protection member 2 are as follows:

referring to fig. 3 to 5, the protection member 2 includes an installation portion 201 and a protection portion 202, a horizontal plane projection of the wire connection portion is entirely located within a horizontal plane projection of the protection portion 202, so that the wire connection portion is entirely located within a protection range of the protection portion 202 for effective and comprehensive protection, an installation hole 2011 is provided on the installation portion 201, the second fixing structure includes a second locking member 3 in threaded fit connection with the first locking member 404, an installation hole 2011 is provided on the installation portion 201, the first locking member 404 penetrates through the installation hole 2011 and is locked by the second locking member 3, the second locking member 3 is also preferably a nut, by the aforementioned fitting manner, the protection member 2 is installed between the first locking member 405 and the second locking member 3, interference and influence between the base 101 and the protection member 2 are reduced, the second locking member 3 is in threaded fit with the first locking member 404 for convenient installation and disassembly, the first fixing structure and the second fixing structure share the first locking member 404, the structure is simplified, the cost is saved, and the installation strength of the whole heating device 002 is improved.

Of course, the second fixing structure is not limited to the screw-nut threaded structure, and may be a matching manner of the connecting rod and the annular clasping member, as long as the installation and locking of the protection member can be realized.

Need pay attention to location and directionality when the guard piece 2 is installed, in order to realize the accurate location of guard piece 2, as shown in fig. 5, be equipped with locating hole 2012 on the installation department 201, be equipped with the location arch on the base 101, the location arch runs through locating hole 2012 and cooperates with at least part pore wall of locating hole 2012, realize quick accurate location through the cooperation of location arch and locating hole 2012, the pore wall cooperation carries out circumference spacing to installation department 201 simultaneously, so as to prevent that the spiral shell of second retaining member 3 moves in-process guard piece 2 and rotates along with it, make guard piece 2 stabilize in mounted position department, improve the installation accuracy.

Other components, such as a cylindrical motor bracket for mounting a motor, are further mounted on the rear side of the tub 001, and in order to avoid the mounting portions 201, the protective portion 202 is of a multi-body type, as shown in fig. 5, and includes a first protective portion 2021 and a second protective portion 2022, the first protective portion 2021 is of a flat plate shape, the first protective portion 2021 and the second protective portion 2022 have a height difference so as to form a mounting avoiding space above the second protective portion 2022, the first protective portion 2021 and the second protective portion 2022 may be integrally formed or may be of a split type, and the first protective portion and the second protective portion 2022 are preferably made of waterproof and fireproof materials.

As shown in fig. 1, the heating means 002 is located at the bottom of the tub 001, and in order to prevent the washing water of the tub 001 from dropping from above to wet the wire connection portion, in the present embodiment, it is preferable that the shielding portion 202 is laterally disposed to provide shielding above the wire connection portion, and the first shielding portion 2021 and the second shielding portion 2022 have a height difference that the upper surface of the second shielding portion 2022 is lower than the upper surface of the first shielding portion 2021.

Of course, in other embodiments, the installation orientation of the protection parts is changed, and the first protection part and the second protection part have a height difference, which means that the first protection part and the second protection part are located on different planes, and the second protection part is closer to the wire connection part than the first protection part.

As shown in fig. 3, the wiring portion includes a plurality of wiring terminals 103, such as a fire wire terminal, a ground wire terminal, a zero wire terminal or a temperature sensor terminal 1031, for optimizing the structure, at least one of the wiring terminals 103 protrudes out of the surface of the base 101 to form a positioning protrusion in the embodiment, preferably, the temperature sensor terminal 1031 is used as the positioning protrusion, a part of the heating device 002 itself is used as the positioning protrusion, a positioning portion is not required to be additionally arranged, the integration is multipurpose, the material and processing cost are saved, the weight is reduced, meanwhile, an area avoiding installation portion 201 is not required to be reserved on the base 101, and the arrangement of the plurality of wiring terminals 103 is facilitated.

Of course, in other embodiments, one or more of other terminals, such as a hot terminal, a ground terminal, a neutral terminal, etc., may be selected as the positioning protrusion.

Referring to fig. 5, according to an embodiment of the present invention, the second fixing structure includes a second connecting member penetrating through the mounting hole and threadedly coupled to the second locking member, i.e., the second connecting member is additionally provided at a position different from the first connecting member on the rear side of the tub or the base, the first fixing structure and the second fixing structure do not share the connecting member and are independent from each other, thereby further reducing interference and influence between the base and the protection member, and the second locking member is threadedly coupled to the second connecting member for easy installation and disassembly.

Certainly, the second connector may be single or multiple, and when the second connector is multiple, the second connector is spaced apart from the rear side of the tub or the base, and the multiple second connectors penetrate through the mounting hole to form a limit position, thereby preventing the rotation of the protection member.

Referring to fig. 4 and 5, according to an embodiment of the present invention, a portion of the mounting portion 201 extends toward the base to form an extending portion 203 and abuts against a periphery of the base to circumferentially limit the mounting portion 201 and prevent the mounting portion 201 from rotating, and the limiting structure may be used simultaneously with the limiting structure formed by the positioning hole 2012 and the positioning protrusion, or may be used separately.

The above embodiments are merely examples and do not limit the scope of the utility model. On the basis of this, a person skilled in the art can envision other embodiments that perform the same function within the scope of the claims of the present invention.

Claims (15)

1. Heating device of a household appliance, characterized in that it comprises:

the heater is provided with a base, a heating part arranged on one side of the base and a wiring part arranged on the other side of the base and connected with the heating part; and the number of the first and second groups,

a shield member that provides protection to the wire connection portion; the first fixing structure is used for mounting the base on the household appliance; and the number of the first and second groups,

and a second fixing structure for mounting the protection member on the base so that the protection member can be independently attached to and detached from the base with respect to the base.

2. The heating device of a home appliance according to claim 1, wherein the first fixing structure comprises an elastic body, the home appliance has a through hole adapted to the elastic body, and the elastic body is fixed in the through hole by being expanded under pressure.

3. The heating device of a home appliance according to claim 2, wherein the first fixing structure further comprises a first seat, a second seat and a fastening component, the fastening component provides a force for the first seat and the second seat to move toward each other, and the elastic body is clamped and pressed by the first seat and the second seat to expand.

4. The heating device of a home appliance according to claim 3, wherein said fastening assembly comprises a first connecting member and a first locking member, said first connecting member having one end connected to said first housing and the other end passing through said second housing and being screw-engaged with said first locking member.

5. The heating apparatus of a home appliance according to claim 4, wherein the second fixing structure comprises a second locker screw-coupled with the first connector, and the shielding member is provided with a mounting hole through which the first connector is inserted and locked by the second locker.

6. The heating apparatus of claim 1, wherein the second fixing structure comprises a second connecting member and a second locking member, and the protecting member has a mounting hole, and the second connecting member extends through the mounting hole and is threadedly engaged with the second locking member.

7. The heating apparatus of an electric home appliance according to any one of claims 1 to 6, wherein the shielding member includes a mounting portion and a shielding portion, the mounting portion being fixed to the base by the second fixing structure.

8. Heating device of a domestic appliance according to claim 7, wherein the shield provides shielding at least above the wire portion.

9. The heating device of claim 7, wherein the mounting portion has a positioning hole, and the base has a positioning protrusion extending through the positioning hole and engaging at least a portion of the wall of the positioning hole.

10. The heating apparatus of a home appliance according to claim 9, wherein the wire connecting portion comprises a plurality of wire connecting terminals, at least one of which protrudes from the surface of the base to form the positioning projection.

11. Heating device for a domestic appliance according to claim 7, wherein a portion of said mounting portion extends towards the base and abuts against a peripheral edge of the base.

12. The heating apparatus of a home appliance according to claim 7, wherein the protector includes a first protector and a second protector, the first protector has a flat plate shape, and the first protector and the second protector have a height difference so as to form an installation avoiding space above the second protector.

13. Heating device for a domestic appliance according to claim 7, wherein the horizontal projection of the wire portion is entirely within the horizontal projection of the shield.

14. Household appliance, characterized in that it comprises a heating device according to one of claims 1 to 13.

15. The household appliance of claim 14, wherein the household appliance is a laundry treatment apparatus comprising a tub and a wash tub rotatably disposed in the tub, the pedestal being fixed to the tub.

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