CN211765826U - Heating structure and steering wheel - Google Patents

Abstract

The application discloses heating structure and steering wheel includes: a substrate layer, further comprising: the heating wire is flatly coated and fixed on the substrate layer through the viscose; the heating wire is provided with a plurality of bending parts; the shape of the bending part is formed by extruding and bending the heating wire; the heating structure is for being arranged between a rim and a skin of a steering wheel. According to the sewing machine, the heating wire is fixed on the substrate layer or the release paper in an adhesive mode, and compared with a sewing mode, the sewing machine is simpler in processing technology and higher in yield; the heating wire is arranged into a plurality of sections of bent parts which are connected end to end, so that the laying length of the heating wire in unit area is increased, and the heating effect of the heating structure is better; the heating structure and the steering wheel provided by the application have better stretchability than a sewing product because of no fixed limit of sewing threads; and because no sewing thread exists, no tightening mark and visible grains are generated on the surface of the rear directional disc after being coated, and the attractiveness of the product is improved.

Description

Heating structure and steering wheel

Technical Field

The application relates to the technical field of automobile parts, in particular to a heating structure and a steering wheel.

Background

Under the condition of relatively low ambient temperature, when the running direction of the control equipment is controlled, the cold steering wheel can cause the hand feeling to be very uncomfortable, and in a serious condition, the reaction is not timely caused by the stiffness of the hand, so that an unnecessary disaster is caused. Therefore, in order to improve the comfort of human body, reduce the occurrence of disasters and meet the current market demands, the heating device assembled on the steering wheel for controlling the running direction of equipment has more and more extensive market demands.

The heating structure on the steering wheel generally adopts a sewing process to fix the heating wire on the base material at present, the mode has low efficiency, and the heating structure cannot be repaired after the problems of wire binding and the like are generated in the sewing process, so that the rejection rate is high; also, the sewn steering wheel heater has a dent in the soft base material due to the lower thread sewing, which affects the aesthetic appearance of the steering wheel.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, it would be desirable to provide a heating structure and a steering wheel for overcoming at least one of the drawbacks and deficiencies.

In a first aspect, the present application provides a heating structure comprising: a substrate layer, further comprising: the heating wire is flatly coated and fixed on the substrate layer through the viscose; the heating wire is provided with a plurality of bending parts; the shape of the bending part is formed by extruding and bending the heating wire; the heating structure is for being arranged between a rim and a skin of a steering wheel.

According to the technical scheme provided by the embodiment of the application, the shape of the bending part is any one of a sawtooth shape, a triangle shape, a V shape, a U shape, a square shape, an S shape or a trapezoid shape.

According to the technical scheme provided by the embodiment of the application, any one side of the base material layer is provided with an adhesive layer, or both sides of the base material layer are provided with adhesive layers;

the heating wire is fixed on the base material layer through the adhesive layer in an adhesive mode.

According to the technical scheme provided by the embodiment of the application, the adhesive layer is an adhesive film.

According to the technical scheme provided by the embodiment of the application, adhesive scattered points for fixing the heating wire are distributed between the heating wire and the substrate layer; or, the heating wire is wrapped on the outer surface of the heating wire.

According to the technical scheme provided by the embodiment of the application, the flexible layer is attached to one side, which is bonded with the heating wire, of the base material layer.

According to the technical scheme that this application embodiment provided, flexible layer is at least one in non-woven fabrics, gauze, leather, foam pad, plastic film, high-elastic sponge, EPDM, PVC.

In a second aspect, the present application provides a steering wheel having a rim with a cladding of any one of the above-described heating structures.

According to the technical scheme provided by the embodiment of the application, the outer surface of the heating structure is wrapped with the coating layer.

According to the technical scheme provided by the embodiment of the application, a foaming structure is further arranged between the heating structure and the coating layer.

According to the sewing machine, the heating wire is fixed on the substrate layer by adopting the viscose, so that compared with a sewing mode, the sewing machine is simpler in processing technology and higher in yield; according to the technical scheme provided by the embodiment of the application, the heating wire is provided with a plurality of bending parts, for example, when the heating wire is a heating resistance wire, the resistance wire design of the bending parts improves the resistance laying length per unit area, namely, the resistance laying length on the substrate layer is lengthened, so that the heating effect of the heating structure is better; furthermore, the bending part can be obtained after being extruded by a mechanical device, so that compared with a processing mode of sewing the heating pad by winding wires commonly adopted in the prior art, the heating structure provided by the application can be further improved in the aspect of processing efficiency, and the pattern extruded by the mechanical device is more uniform than the pattern formed by sewing, so that the heat generated after heating is more uniformly dissipated; in addition, the heating structure and the steering wheel provided by the application have better stretchability than a sewing product due to no fixed limit of sewing threads; in addition, after the heating structure manufactured after the sewing process is removed and the steering wheel is coated, no tightening mark and visible grains are generated on the surface of the steering wheel, the attractiveness of a steering wheel product can be further improved, and the holding hand feeling of the steering wheel is improved.

The heating structure and the steering wheel that this application further provided still further are provided with from hand detection device for heating structure and steering wheel possess the heating simultaneously and leave the hand and detect the function, can reduce the processing human cost that steering wheel production was made, improve the production and manufacturing efficiency of steering wheel simultaneously.

In addition, the multi-region hand-separating detection function further provided by the application can be respectively used for identifying: a single hand holding tray, a double hand holding tray and a holding posture of the double hands on the steering wheel. The operation posture of the driver in the driving process can be better identified, the driver can be reminded of keeping the holding posture strived for all the time conveniently and timely, and further safety guarantee is provided for traffic safety.

In addition to the technical problems addressed by the present application, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems that the heating structure and the steering wheel provided by the present application can solve, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail with reference to the accompanying drawings.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic structural diagram of a heating structure in an embodiment of the present application;

FIG. 2 is a sectional view taken along the line A-A in FIG. 1, which is a schematic structural view of a first embodiment of an adhesive layer in one embodiment of the present application;

FIG. 3 is a schematic structural diagram of a second embodiment of an adhesive layer in one embodiment of the present application;

FIG. 4 is a schematic structural view of a third embodiment of an adhesive layer in one embodiment of the present application;

FIG. 5 is a schematic structural diagram of a heating line according to a first embodiment of the second embodiment of the present application;

FIG. 6 is a schematic structural diagram of a heating wire according to a second embodiment of the present application;

FIG. 7 is a schematic structural view of a heating wire according to a third embodiment of the second embodiment of the present application;

FIG. 8 is a schematic structural view of a heating wire according to a fourth embodiment of the second embodiment of the present application;

fig. 9 is a schematic structural view of a heating structure in a third embodiment of the present application;

fig. 10 is a schematic structural view (single-sided adhesive layer) of a heating structure according to a fourth embodiment of the present application;

fig. 11 is a schematic structural view of a heating structure (double-sided adhesive layer) according to a fourth embodiment of the present application;

fig. 12 is a schematic structural view of a heating structure in a fifth embodiment of the present application;

fig. 13 is a schematic structural view of a heating structure according to a sixth embodiment of the present application;

fig. 14 is a schematic structural view of a heating structure in a seventh embodiment of the present application;

fig. 15 is a schematic structural view of a heating structure in an eighth embodiment of the present application;

FIG. 16 is a schematic structural diagram of a steering wheel according to a ninth embodiment of the present application;

FIG. 17 is a schematic view of the steering wheel structure shown in section A-A in FIG. 16;

fig. 18 is a schematic structural view of a steering wheel formed after one foaming in the tenth embodiment of the present application;

FIG. 19 is a schematic view of a steering wheel structure obtained by an integral foaming process in example ten of the present application;

fig. 20 is a schematic structural view of a steering wheel in an eleventh embodiment of the present application;

fig. 21 is a front or back structural sectional view of a steering wheel provided with a sensing area, the steering wheel being manufactured by one-time foaming in the twelfth embodiment of the present application;

fig. 22 is a front or back structural sectional view of a steering wheel provided with two sensing areas, which is manufactured by one-time foaming in the twelfth embodiment of the present application, and is also a front structural sectional view of a steering wheel provided with three sensing areas, which is manufactured by one-time foaming;

fig. 23 is a structural cross-sectional view of the back side of a steering wheel provided with three sensing areas, wherein the steering wheel is manufactured by one-time foaming in the twelfth embodiment of the present application;

FIG. 24 is a front or back sectional view of a steering wheel with a sensing area according to a thirteenth embodiment of the present invention;

fig. 25 is a front or back structural sectional view of a steering wheel provided with two sensing areas for a steering wheel manufactured by secondary foaming in the thirteenth embodiment of the present application, and is also a front structural sectional view of a steering wheel provided with three sensing areas for a steering wheel manufactured by secondary foaming;

fig. 26 is a structural cross-sectional view of the back of a steering wheel provided with three sensing areas, the steering wheel being manufactured by secondary foaming in a thirteenth embodiment of the present application;

reference numbers in the figures: 100. a heating structure; 110. a substrate layer; 111. a glue film; 120. a heating wire; 130. a flexible layer; 140. gluing; 141. an adhesive layer; 142. a glue dot layer; 143. wrapping the adhesive layer; 150. a shielding layer; 160. a spacer layer; 170. a sensing layer; 171. a first sensing region; 172. a second sensing region; 173. a third sensing region; 180. a bonding portion; 200. a steering wheel; 210. a rim; 220. a spoke; 230. a coating layer; 240. and (4) a foaming structure.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example one

Referring to fig. 1, the present application provides a schematic structural view of a heating structure 100 in one embodiment, which includes a substrate layer 110, and a heating wire 120 flatly fixed on the substrate layer 110 by an adhesive 140; the heating structure 100 is intended to be arranged between the rim and the skin of a steering wheel.

The substrate layer 110 may be made of a material having a mesh characteristic, including but not limited to, at least one of woven fabric and nonwoven fabric, or may be made of a composite material of two or more materials.

Optionally, the bonding manner between the substrate layer 110 and the heater wire 120, that is, the implementation manner of the adhesive 140 includes, but is not limited to, the following:

1. an adhesive layer manner, in which the entire surface of the adhesive 140 is covered on the surface of the substrate layer 110 to form an adhesive layer 141; in this embodiment, the adhesive layer 141 can be realized by:

(a) as shown in fig. 2, an adhesive film covering any one side of the substrate layer 110, that is, the adhesive layer 141 is integrated with the substrate layer 110 at this time, for example, a single-sided tape in the form of a single-sided adhesive, a cotton substrate, or a mesh substrate;

(b) adhesive films covering both sides of the substrate layer 110, that is, the adhesive layer 141 is integrated with the substrate layer 110 at this time, for example, in a form of a double-sided tape; double-sided adhesive tapes for cotton or mesh substrates; in this case, the heating wire 120 may be disposed on any side of the substrate layer 110;

(c) the adhesive, hot melt adhesive, UV adhesive or self-drying adhesive applied to the entire surface of the substrate layer 110, that is, formed on the substrate layer 110 at a later stage;

the adhesive layer 141 is provided to facilitate the further attachment of the protective structure outside the heating structure 100.

2. The adhesive dot layer method, that is, as shown in fig. 3, the adhesive 140 is scattered between the substrate layer 110 and the heater wire 120 to form an adhesive dot layer 142;

3. in the form of a wrapping adhesive, as shown in fig. 4, the adhesive 140 is wrapped on the entire surface or a part of the surface of the heating wire 120 to form a wrapping adhesive layer 143.

In any of the above embodiments of the adhesive 140, the material of the adhesive 140 may be a non-setting adhesive, a hot melt adhesive, a UV adhesive, or a self-drying adhesive.

In the present embodiment, the heating wire 120 is a resistance wire for heating; in the prior art, heating structure 100 who is used as steering wheel includes the substrate layer and makes up the heater wire (resistance wire) on the substrate layer, the resistance wire is made on the substrate layer with the shape of setting for, in this embodiment, heater wire 120 coils for the straight line and passes through viscose 140 adhesive bonding on substrate layer 110, moreover, the steam generator is simple in operation, the error rate is low, heater wire 120 changes in distributing on substrate layer 110 with the even mode of interval, the heating effect that produces at each position of steering wheel rim after the use is more even, the handle of gripping of steering wheel is felt and will be more comfortable.

In addition, in one preferred embodiment of the present invention, when the adhesive 140 is the adhesive layer 141, and the heating structure 100 in this embodiment is formed as a single product, the release paper 112 is laid on the side of the substrate layer 110 on which the adhesive layer 141 is disposed, so that the release paper 112 can be peeled off to be adhered to a product to be applied when the heating structure 100 is used.

It should be noted that, in the structural schematic diagrams of this embodiment and the subsequent embodiments, the relative positions of the heating wire 120 and the adhesive 140 are not limited to the positions shown in the figures, that is, the heating wire 120 is adjacent to the substrate layer 110, or the adhesive layer 141 is adjacent to the substrate layer 110.

Example two

Preferably, the present embodiment is based on the outline structure of the heating wire in the first embodiment, and further structural improvement is made. In this embodiment, the shape of the bending portion is formed by extruding and bending the heating wire; the heater wire is provided with a plurality of kinks.

In one preferred embodiment of this embodiment, as shown in fig. 5, the heater wire 120 is formed of several zigzag-shaped bends connected end to end.

As shown in fig. 6, in one preferred embodiment of the present embodiment, the heating wire 120 may also be formed by several bent portions with a trapezoid shape.

As shown in fig. 7, in one preferred embodiment of the present invention, the heating wire 120 may also be formed by several triangular bends.

As shown in fig. 8, in one preferred embodiment of the present invention, the heating wire 120 may also be formed by a plurality of square bending portions.

It should be noted that the heating wires with different bending shapes can be extruded and then realized according to mechanical devices with different shapes and structures, and mass production can be easily realized in a flow line operation mode.

In addition, in the above embodiment, the shape of the bent portion may also be a U shape or other shapes, and the bent heating wire 120 may enable a longer heating wire to be attached to a substrate per unit area, so as to ensure the heating effect of the heating structure, and the pattern formed by uniform extrusion may cause the heating of the outer edge of the steering wheel to be more uniform, so that a better holding experience may be obtained when the steering wheel is held by hand.

EXAMPLE III

As shown in fig. 9, in the present embodiment, the heating structure 100 includes a release paper 112 attached with an adhesive film 111, and a heating wire 120 adhered on the adhesive film 111; the heating wire 120 is provided with a plurality of bent portions; the appearance of kink forms for the heater wire after the extrusion is buckled. Compared with the second embodiment, in this embodiment, the substrate layer 110 in the second embodiment is replaced with the release paper 112 with the adhesive film 111, and in this case, the adhesive 140 is implemented by the adhesive film 111; a heating wire having a plurality of bent portions formed by extrusion is attached to the adhesive film 111 of the release paper 112. When the steering wheel is prepared, the release paper 112 attached with the heating wire 120 is directly attached to the rim of the steering wheel, and when other structural layers are required to be further assembled on the upper surface of the heating wire 120, the release paper 112 on the adhesive film 111 is only required to be removed for further assembly. When the structure relates to packaging and transportation, only a layer of release paper needs to be attached to the side where the heating wire is attached again. In addition, in the above structure, since the adhesive film 111 with the heating wire 120 attached thereto can obtain the technical effect of firmly adhering the heating wire to the rim of the steering wheel no matter which side is adhered to the rim of the steering wheel, it is claimed that any side of the adhesive film 111 is used for adhering to the rim of the steering wheel.

In this embodiment, the release paper 112 with the adhesive film 111 is directly used as a finished product, and the adhesive 140 is not used separately in the production, so that the production process of the heating structure is further simplified, and the production cost is reduced.

Example four

As shown in fig. 10 and 11, in this embodiment, in addition to the second embodiment, a flexible layer 130 is further adhered to the side of the substrate layer 110 on which the heater wire 120 is disposed; fig. 10 corresponds to a mode in which the adhesive layer 141 is disposed on one side of the substrate layer 110, and fig. 11 corresponds to a mode in which the adhesive layer 141 is disposed on both sides of the substrate layer 110, and in this mode, the release paper 112 is disposed outside the adhesive layer 141 in which the substrate layer 110 is not provided with the heater wire 120; as will be understood by those skilled in the art, of the above two embodiments, the adhesive layer 141 is preferably an adhesive film. The material of the flexible layer 130 includes, but is not limited to, any one or more flexible materials of non-woven fabric, gauze, leather, foam pad, plastic film, high elastic sponge, EPDM, and PVC. Wherein EPDM is ethylene propylene diene monomer, and PVC is vinyl chloride monomer. The flexible layer 130 can prevent the bulge of the wire part of the heating wire 120 from causing adverse effect on the holding comfort of the steering wheel, and can protect the heating wire from being damaged by external force.

EXAMPLE five

As shown in fig. 12, on the basis of the second embodiment, in one implementation manner of this embodiment, the substrate layer 110 is a flexible layer 130 with adhesive films 111 respectively disposed on both sides; the side of the flexible layer 130 to which the heater wire 120 is not attached is attached with a release paper 112. In the above structure, if the packaging transportation is involved, it is only necessary to attach a release paper 112 again to the side to which the heater wire 120 is attached.

In this embodiment, the flexible layer 130 is directly used as the substrate layer 110, which not only prevents the protrusion of the wire of the heating wire 120 from adversely affecting the gripping comfort of the steering wheel, but also simplifies the structure layer of the heating structure, reduces the cost, and simplifies the process steps.

EXAMPLE six

As shown in fig. 13, in this embodiment, in addition to the second embodiment, a separation detecting device is fixedly disposed on a side of the substrate layer 110 where the heater wire 120 is not disposed; the device for detecting the separation of the hands sequentially comprises a shielding layer 150, a spacing layer 160 and a sensing layer 170, wherein the shielding layer 150 is adjacent to the substrate layer 110. The shielding layer 150 is made of a metal material in the embodiment, for example, a metal coating or a metal wire, and is used for isolating the signal of the heating wire 120 from the signal of the sensing layer 170; the spacer layer 160 is made of an insulating material; in the present embodiment, the sensing layer 170 is a complete sensing region.

In this embodiment, heating structure 100 not only has the heating function, still has and leaves the hand and detect the function, can compromise simultaneously heating and leave these two kinds of important functions of hand detection in same product after two functional structure integration, has simplified the manufacturing process of steering wheel, further improves the production efficiency of steering wheel manufacturing enterprise.

EXAMPLE seven

As shown in fig. 14, in the present embodiment, on the basis of the sixth embodiment, the sensing layer 170 is provided with two sensing regions, namely a first sensing region 171 and a second sensing region 172. Adopt the setting of induction zone two districts not only can detect whether driver drives from the hand, can also further detect whether driver's single hand steering wheel in driving process.

Preferably, in one preferable embodiment of the present invention, the first sensing area 171 is used for detecting whether the left hand of the driver is disengaged from the steering wheel, and the second sensing area 172 is used for detecting whether the right hand of the driver is disengaged from the steering wheel. When the heating structure is mounted on the rim of the steering wheel, the first sensing area 171 substantially covers the area that is frequently held by the left hand when the hand-held steering wheel is driven in the correct posture according to the traffic regulations, and the second sensing area 172 substantially covers the area that is frequently held by the right hand when the hand-held steering wheel is driven in the correct posture according to the traffic regulations.

Example eight

As shown in fig. 15, in the present embodiment, on the basis of the sixth embodiment, the sensing layer 170 is provided with three sensing regions, which are a first sensing region 171, a second sensing region 172 and a third sensing region 173. The first sensing area 171 and the second sensing area 172 are arranged on the front side of the steering wheel, the front side of the steering wheel refers to the side of the steering wheel facing the driver, the first sensing area 171 is located on the left side of the steering wheel, and the second sensing area 172 is located on the right side of the steering wheel; the third sensing area 173 is for being disposed on a reverse side of the steering wheel, which refers to a side of the steering wheel facing the console.

The first sensing area 171 is used for detecting whether the left hand of the driver leans against the upper surface of the steering wheel, the second sensing area 172 is used for detecting whether the right hand of the driver leans against the upper surface of the steering wheel, and the third sensing area 173 is coated on the back side of the rim of the steering wheel and used for detecting whether the driver holds the steering wheel. It should be noted that the number of partitions of the sensing layer in this embodiment is not limited to the above-disclosed structure, and in other embodiments, a greater number of sensing regions are partitioned to meet the requirement of more detailed detection. In the above embodiment, but not limited to, the third sensing area 173 is divided into two areas, which are used to identify whether the driver holds the steering wheel with the left hand and holds the steering wheel with the right hand.

After the steering wheel hands-off (HOD) identification mode is adopted, a driver can be reminded to hold the steering wheel in a correct holding posture in time, and potential safety hazards caused by the fact that the driver only holds the steering wheel with one hand or only puts the hand on the upper surface of the steering wheel to drive an automobile are reduced.

Example nine

As shown in fig. 16, a structure of a steering wheel in one embodiment of the present embodiment is schematically illustrated. In the present embodiment, the cross-sectional view taken along the direction a shown in fig. 15 is taken as a main view to explain different shapes formed by coating different heating structures on the rim and corresponding use functions of the corresponding shape structures.

As shown in fig. 17, a cross-sectional view of one of the steering wheels 200 in a view a, a rim 210 of the steering wheel is externally coated with the heating structure 100 described in the above embodiments. After adopting above-mentioned structure, the distribution of heater wire 120 will be more even, can bring more comfortable sense of holding and heating effect. Preferably, in one embodiment of the structure shown in fig. 17, the base material layer 110 in the heating structure 100 is replaced with a cover layer 230 of the steering wheel 200.

Example ten

As shown in fig. 18, in the steering wheel 200 provided in this embodiment, the heating structure 100 described in the second embodiment is wrapped outside the steering wheel 200, and the wrapping layer 230 is wrapped outside the heating structure 100; in this embodiment, the cover 230 is glued to the heating structure 100 and then wrapped around the rim 210 together with the heating structure 100. Wherein the base material layer 110 is directly in contact with the rim 210 in the above structure.

Preferably, as shown in fig. 19, in one preferred embodiment of the present embodiment, the steering wheel is provided with a heating structure 100 as described in the second embodiment, and the heating structure 100 is wrapped with a wrapping layer 230; one side of the substrate layer 110 far away from the heating wire 120 is adjacent to the coating layer 230, and a foaming structure 240 is arranged between the substrate layer and the coating layer; after the heating structure 100 is fixed to the rim 210 by the adhesive on the base material 110, it is foamed integrally with the steering wheel 200, and then the outer side of the foamed layer is covered with the covering layer 230.

In this embodiment, the foam structure 240 further increases the comfort of the steering wheel.

EXAMPLE eleven

As shown in fig. 20, the rim 210 of the steering wheel provided in the present embodiment is wrapped with the heating structure 100 described in the fourth embodiment, and the heating structure 100 is wrapped with the wrapping layer 230. In this embodiment, the cladding layer 230 is connected to the heating structure by an adhesive 180. After adopting above-mentioned structure, flexible layer 130 can weaken the protruding effect of heater wire 120 and slightly uncomfortable to holding and bringing, causes the travelling comfort of holding of steering wheel to obtain more excellent promotion.

Example twelve

As shown in fig. 21, the steering wheel provided in the present embodiment is wrapped with the heating structure 100 described in the sixth embodiment, and the heating structure 100 is wrapped with the wrapping layer 230; at this time, the sensing layer 170 is connected to the clad layer 230 by the bonding portion 180.

Preferably, as shown in fig. 22, the primary foamed heating structure corresponding to the seventh embodiment is installed on the rim of the steering wheel 200, and the sensing layer 170 is also provided with two sensing regions (the first sensing region 171 and the second sensing region 172) accordingly, or the primary foamed heating structure corresponding to the eighth embodiment is installed on the rim of the steering wheel 200, and the sensing layer 170 is provided with three sensing regions. Wherein, on the front surface of the steering wheel, the positions of the first sensing area 171 and the second sensing area 172 are consistent with the positions of the first sensing area 171 and the second sensing area 172 shown in fig. 21; referring to fig. 23, a third sensing region 173 is further provided in the structural layer for providing the sensing region at the rear surface of the steering wheel.

EXAMPLE thirteen

As shown in fig. 19 to 21, in addition to the twelfth embodiment, a foaming structure 240 is further disposed between the heating structure 100 and the covering layer 230. Wherein, the structural view of the cross section of the steering wheel A provided with only one sensing area is shown in FIG. 24; a cross-sectional view of a front or rear structure of a steering wheel provided with two sensing zones is shown in fig. 25; the front structure of the steering wheel with three sensing areas is shown in a sectional view in fig. 25, and the back structure of the steering wheel with three sensing areas is shown in a sectional view in fig. 26.

In the above embodiment, the covering layer 230 may be made of leather, or other materials.

In the above embodiment, all the structural sectional views in fig. 21 to 26 are sectional structural diagrams formed by splitting a middle section of a rim perpendicular to an axial direction of a steering wheel in a layer-by-layer manner in a direction of a steering wheel covering layer, so as to more clearly illustrate a hierarchical connection structure between constituent layers of the steering wheel.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims (10)

1. A heating structure comprising: the substrate layer, its characterized in that still includes: the heating wire is flatly coated and fixed on the substrate layer through the viscose; the heating wire is provided with a plurality of bending parts; the shape of the bending part is formed by extruding and bending the heating wire; the heating structure is for being arranged between a rim and a skin of a steering wheel.

2. The heating structure as claimed in claim 1, wherein the bent portion has an outer shape of any one of a zigzag shape, a triangular shape, a V-shape, a U-shape, a square shape, an S-shape, and a trapezoidal shape.

3. The heating structure according to claim 1, wherein an adhesive layer is provided on either one side of the base material layer, or both sides of the base material layer;

the heating wire is fixed on the base material layer through the adhesive layer in an adhesive mode.

4. The heating structure of claim 3, wherein the adhesive layer is an adhesive film.

5. The heating structure as claimed in claim 1, wherein adhesive dots for fixing the heating wire are distributed between the heating wire and the base material layer; or, the heating wire is wrapped on the outer surface of the heating wire.

6. The heating structure according to any one of claims 1 to 5, wherein a flexible layer is further attached to the side of the substrate layer to which the heater wire is bonded.

7. The heating structure of claim 6, wherein the flexible layer comprises any one of non-woven fabric, gauze, leather, foam pad, plastic film, high elastic sponge, EPDM, and PVC.

8. A steering wheel characterized in that the rim of the steering wheel is coated with the heating structure of any one of claims 1 to 7.

9. The steering wheel of claim 8, wherein an outer surface of the heating structure is coated with a coating.

10. The steering wheel of claim 9, wherein a foam structure is disposed between the heating structure and the covering layer.

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