Automobile steering wheel functional pad with tongue piece protection structure and steering wheel

Abstract

The utility model provides an automobile steering wheel functional pad with a tongue piece protection structure and a steering wheel. The steering wheel functional pad comprises a functional pad body and a tongue piece protection structure, the functional pad body is provided with an easy-to-bend part which divides the functional pad body into a functional part and a tongue piece part. The reinforcing layer is additionally arranged on the functional pad body, so that the reinforcing layer is attached to the surface of the functional pad body, and meanwhile, the functional part and the tongue piece part on the two sides of the easy-to-bend part are electrically connected. When bending occurs, the structural strength of the easy-to-bend part is enhanced in the mode of adding the reinforcing layer; and meanwhile, when the easy-to-bend part is disconnected, the reinforcing layer can replace a conductor in a circuit, so that the risk of failure of the functional pad of the steering wheel is reduced.

Description

Technical Field

[0001] The utility model generally relates to the technical field of conductive fabrics, and in particular relates to a functional car steering wheel pad with a tongue protection structure and a steering wheel. Background Art

[0002] Conventional methods for electrically connecting conductive fabrics to wiring harnesses involve welding or ultrasonic welding. Due to assembly size requirements, the connection between the conductive fabric and wiring harness is designed to be relatively narrow, reducing its bending resistance. Furthermore, bending is unavoidable during the production, transportation, and packaging processes.

[0003] As the number of times the conductive fabric is bent increases, the area of ​​the coating peeling off at the bending position of the conductive fabric will gradually increase, causing the conductivity of the conductive fabric to deteriorate, until the coating completely peels off, the conductive fabric will lose its conductive function, affecting the normal function of the device. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a functional car steering wheel pad and a steering wheel with a tongue protection structure.

[0005] On the one hand, the utility model provides a functional car steering wheel pad with a tongue protection structure, comprising:

[0006] A functional pad body, the functional pad body having a functional portion and a tongue portion protruding from the functional portion, one end of the tongue portion being electrically connected to the steering wheel wiring harness, and the other end being electrically connected to the functional portion, and a bendable portion being provided at the connection between the tongue portion and the functional portion;

[0007] The reinforcing layer extends over the easy-bending portion, and its two ends are respectively attached to the surfaces of the functional portion and the tongue portion; and the two ends of the reinforcing layer are respectively electrically connected to the functional portion and the tongue portion.

[0008] According to the technical solution provided by the present invention, the tongue portion is electrically connected to the steering wheel wiring harness through a welding point; the reinforcement layer is electrically connected to the steering wheel wiring harness through the tongue portion and the welding point in turn, and is used to electrically connect the tongue portion and the functional portion on both sides of the easy-bending portion when the easy-bending portion is electrically disconnected.

[0009] According to the technical solution provided by the present invention, the reinforcement layer is made of conductive material.

[0010] According to the technical solution provided by the present invention, it also includes an insulating layer, which is coated on the outer surface of the tongue portion and the reinforcement layer.

[0011] According to the technical solution provided by the present invention, the functional pad body includes:

[0012] An induction composite layer is laminated to the reinforcement layer.

[0013] According to the technical solution provided by the present invention, the induction composite layer includes:

[0014] a sensing layer, the sensing layer being electrically connected to the steering wheel harness; and the reinforcing layer being attached to a surface on one side of the sensing layer;

[0015] The sensing layer substrate is attached to the surface of the sensing layer away from the reinforcement layer.

[0016] According to the technical solution provided by the present invention, the functional pad body further includes:

[0017] The shielding composite layer is attached to the surface of the sensing layer substrate on a side away from the sensing layer.

[0018] According to the technical solution provided by the present invention, the shielding composite layer includes:

[0019] a shielding layer, the shielding layer being attached to a surface of the sensing layer substrate away from the sensing layer;

[0020] The shielding layer substrate is attached to the surface of the shielding layer away from the sensing layer substrate.

[0021] The technical solution provided by the present invention also includes:

[0022] A heating wire is installed on the surface of the shielding layer substrate away from the shielding layer, and is used to heat the functional pad body.

[0023] On the other hand, the present invention also provides a steering wheel, comprising:

[0024] A steering wheel body is provided, on which a functional automobile steering wheel pad with a tongue protection structure as described in any one of the above items is installed.

[0025] The beneficial effects of the present invention are:

[0026] An additional reinforcement layer is added to the functional pad body, conforming to the surface of the pad and electrically connecting the functional portion and tongue portion on either side of the bendable section. This reinforced layer strengthens the bendable section's structural strength when it bends. Furthermore, if the bendable section breaks, the reinforcement layer acts as a conductor, reducing the risk of steering wheel pad failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments made with reference to the following drawings:

[0028] Figure 1 This is a schematic diagram of a steering wheel function pad;

[0029] Figure 2 for Figure 2 A partial enlarged view of point A in the middle;

[0030] Figure 3 This is a schematic diagram of the structure of a steering wheel functional pad with an insulating layer;

[0031] Figure 4 This is another schematic diagram of the steering wheel function pad;

[0032] Figure 5 for Figure 3 Cross-section view in the mid-CC direction;

[0033] Figure 6 This is an exploded view of the steering wheel function pad;

[0034] Figure 7 Here is another exploded view of the steering wheel function pad;

[0035] Among them: 1. Functional pad body; 2. Steering wheel wiring harness; 3. Bendable part; 4. Reinforcement layer; 5. Sensing layer; 6. Sensing composite layer; 7. Sensing layer base material; 8. Shielding layer; 9. Shielding composite layer; 10. Shielding layer base material; 11. Heating wire; 12. Insulation layer; 13. Double-sided tape; 14. Soldering point; 15. Tongue part. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are intended only to illustrate the relevant utility model and are not intended to limit the scope of the utility model. It should also be noted that, for ease of description, only the portions relevant to the utility model are shown in the accompanying drawings.

[0037] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] Example 1

[0039] Please refer to Figure 1-4 The utility model provides a functional car steering wheel pad with a tongue protection structure, comprising:

[0040] Functional pad body 1, the functional pad body 1 having a functional portion and a tongue portion 15 protruding from the functional portion, one end of the tongue portion 15 is electrically connected to the steering wheel harness 2, the other end is electrically connected to the functional portion, the tongue portion 15 and the functional portion of the connection having an easily bendable portion 3;

[0041] The reinforcing layer 4 extends over the bendable portion 3 , with both ends respectively attached to the surfaces of the functional portion and the tongue portion 15 ; and both ends of the reinforcing layer 4 are respectively electrically connected to the functional portion and the tongue portion 15 .

[0042] Specifically, Figure 3 The arrow and C in the middle indicate the cross-sectional direction. Figure 5 for Figure 2 Cross-sectional view in CC direction.

[0043] The functional pad body 1 is mounted on the steering wheel and rotates with it. Because it detects whether a hand is gripping the steering wheel, it forms an internal capacitor, which in turn requires a connection to the steering wheel harness 2. When the steering wheel is turned while driving, the steering wheel harness 2 twists with it, which can easily cause the bendable portion 3 to bend, rub against other parts, or even break.

[0044] When bending occurs, this method of adding the reinforcement layer 4 enhances the structural strength of the bendable portion 3; at the same time, when the original circuit structure is broken, the reinforcement layer 4 can replace it as a conductor in the circuit, reducing the risk of failure of the steering wheel functional pad.

[0045] Furthermore, the tongue portion 15 is electrically connected to the steering wheel wiring harness 2 through the welding point 14; the reinforcement layer 4 is electrically connected to the steering wheel wiring harness 2 through the tongue portion 15 and the welding point 14 in turn, and is used to electrically connect the tongue portion 15 and the functional portion on both sides of the easy-to-bend portion 3 when the easy-to-bend portion 3 is electrically disconnected.

[0046] Furthermore, the reinforcing layer 4 is made of a conductive material, which may be a curable liquid conductive material (conductive silver glue or graphite conductive glue) or a solid conductive material (conductive tape or adhesive conductive fabric).

[0047] Specifically, the steering wheel wiring harness 2 and the tongue portion 15 are electrically connected by forming a soldering point 14 ; the reinforcing layer 4 is electrically connected to the tongue portion 15 and the functional portion by laminating or curing.

[0048] When the conductor inside the functional pad body 1 is broken after multiple bending, the reinforcement layer 4 acts as a conductor to electrically connect to the steering wheel harness 2, thereby still realizing the original function of the functional pad body 1 and greatly extending the service life of the conductive fabric.

[0049] Furthermore, an insulating layer 12 is included, and the insulating layer 12 covers the outer surface of the tongue portion 15 and the reinforcement layer 4 .

[0050] Specifically, the insulating layer 12 can prevent the tongue portion 15 from short-circuiting with external metal parts, ensuring that the functional pad body 1 accurately detects whether the hand is holding the steering wheel; it can also prevent the functional pad body 1 from being worn, thereby extending its service life.

[0051] Further, refer to Figure 6-7 , the functional pad body 1 includes:

[0052] The inductive composite layer 6 is bonded to the reinforcing layer 4 and is used to detect whether a conductive object (the driver's hand in this embodiment) contacts the functional pad body 1 .

[0053] Furthermore, the induction composite layer 6 includes:

[0054] The sensing layer 5 is electrically connected to the steering wheel harness 2; the reinforcing layer 4 is attached to the surface of one side of the sensing layer 5;

[0055] The sensing layer substrate 7 is attached to the surface of the sensing layer 5 away from the reinforcement layer 4 .

[0056] Furthermore, the functional pad body 1 further includes:

[0057] The shielding composite layer 9 is attached to the surface of the sensing layer substrate 7 away from the sensing layer 5 .

[0058] Furthermore, the shielding composite layer 9 includes:

[0059] a shielding layer 8, the shielding layer 8 being attached to a surface of the sensing layer substrate 7 away from the sensing layer 5;

[0060] The shielding layer substrate 10 is attached to the surface of the shielding layer 8 away from the sensing layer substrate 7 .

[0061] Specifically, the sensing layer 5 and the sensing layer substrate 7 cooperate with each other to form a capacitor when the hand touches the conductive fabric; by monitoring the change in the capacitance, it is possible to detect whether the hand touches the conductive fabric.

[0062] The shielding layer 8 can make the induction composite layer 6 less affected by the external electromagnetic field, thereby improving the detection accuracy.

[0063] Further, refer to Figure 7 , also includes:

[0064] The heating wire 11 is installed on the surface of the shielding layer substrate 10 away from the shielding layer 8 and is used to heat the functional pad body 1. When a hand is holding the functional pad body 1, the hand can also be heated.

[0065] Specifically, the heating wire 11 is sewn onto the shielding layer substrate 10 , and the shielding layer substrate 10 is adhered to the shielding layer 8 via a double-sided adhesive tape 13 . Then, by energizing the heating wire 11 , electrical energy is converted into thermal energy.

[0066] Specifically, the sensing layer 5, the sensing layer substrate 7, the shielding layer 8, and the shielding layer substrate 10 are fixed to each other by double-sided tape 13. The insulating layer 12 and the heating wire 11 are also fixed to each other by double-sided tape 13.

[0067] This method can heat the steering wheel function pad, so that the steering wheel function pad is at a suitable temperature when the hand touches the steering wheel function pad, avoiding the temperature being too low and making the hand feel uncomfortable.

[0068] Example 2

[0069] The utility model also provides a steering wheel, comprising:

[0070] A steering wheel body is provided, on which a functional automobile steering wheel pad with a tongue protection structure as described in any one of the above embodiments is installed.

[0071] Specifically, with reference to the technical effects achieved by the above embodiments, after installing the above functional pad, the risk of failure of the steering wheel functional pad can be reduced during the process of turning the steering wheel, thereby extending the service life.

[0072] The above description is merely a preferred embodiment of the present invention and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the present invention is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the concept of the present invention. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in the present invention.

Claims

1. A functional car steering wheel pad with a tongue protection structure, characterized in that: include: A functional pad body (1), the functional pad body (1) comprising a functional portion and a tongue portion (15) protruding from the functional portion, one end of the tongue portion (15) being electrically connected to a steering wheel harness (2), and the other end being electrically connected to the functional portion, and a bendable portion (3) being provided at the connection between the tongue portion (15) and the functional portion; A reinforcing layer (4), the reinforcing layer (4) extends over the easily bendable portion (3), with both ends respectively attached to the surfaces of the functional portion and the tongue portion (15); and the two ends of the reinforcing layer (4) are respectively electrically connected to the functional portion and the tongue portion (15).

2. The functional pad for a car steering wheel with a tongue protection structure according to claim 1, characterized in that: The tongue portion (15) is electrically connected to the steering wheel harness (2) via a welding point (14); the reinforcement layer (4) is electrically connected to the steering wheel harness (2) via the tongue portion (15) and the welding point (14) in sequence, and is used to electrically connect the tongue portion (15) and the functional portion on both sides of the easy-bending portion (3) when the easy-bending portion (3) is electrically disconnected.

3. A functional car steering wheel pad with a tongue protection structure according to claim 1 or 2, characterized in that: The reinforcement layer (4) is made of conductive material.

4. The functional pad for a car steering wheel with a tongue protection structure according to claim 1, characterized in that: It also includes an insulating layer (12), which covers the outer surfaces of the tongue portion (15) and the reinforcing layer (4).

5. The functional pad for a car steering wheel with a tongue protection structure according to claim 1, characterized in that: The functional pad body (1) comprises: An induction composite layer (6), wherein the induction composite layer (6) is bonded to the reinforcement layer (4).

6. The functional car steering wheel pad with a tongue protection structure according to claim 5, characterized in that: The induction composite layer (6) comprises: A sensing layer (5), the sensing layer (5) being electrically connected to the steering wheel harness (2); the reinforcing layer (4) being attached to a surface on one side of the sensing layer (5); A sensing layer substrate (7), wherein the sensing layer substrate (7) is attached to a surface of the sensing layer (5) on a side away from the reinforcing layer (4).

7. The functional car steering wheel pad with a tongue protection structure according to claim 6, characterized in that: The functional pad body (1) further comprises: A shielding composite layer (9), wherein the shielding composite layer (9) is attached to a surface of the sensing layer substrate (7) on a side away from the sensing layer (5).

8. The functional pad for a car steering wheel with a tongue protection structure according to claim 7, characterized in that: The shielding composite layer (9) comprises: a shielding layer (8), the shielding layer (8) being attached to a surface of the sensing layer substrate (7) on a side away from the sensing layer (5); A shielding layer substrate (10), wherein the shielding layer substrate (10) is attached to a surface of the shielding layer (8) on a side away from the sensing layer substrate (7).

9. The functional car steering wheel pad with a tongue protection structure according to claim 8, characterized in that: Also includes: A heating wire (11) is installed on the surface of the shielding layer substrate (10) on a side away from the shielding layer (8) and is used to heat the functional pad body (1).

10. A steering wheel, characterized in that: include: A steering wheel body is provided, on which a functional automobile steering wheel pad with a tongue protection structure as described in any one of claims 1 to 9 is installed.

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