CN215600291U - Multifunctional switch and steering wheel comprising same - Google Patents

Abstract

The utility model provides a multifunctional switch and a steering wheel comprising the same, wherein the multifunctional switch comprises: switch base, circuit board, fixed bolster, rocker button and button panel. The switch base is arranged in a spoke of the steering wheel; the circuit board is arranged on the switch base, and a micro switch unit and a hidden light bar are arranged on the circuit board; the fixed bracket is arranged on the switch base; the rocker button is movably connected with the fixed support, is contacted with the micro switch unit and starts the micro switch unit through touch; the key panel is arranged on spokes of the steering wheel and covers the fixed support, a first film is arranged on the outer surface of the key panel and comprises a shading area and a light transmitting area, the shading area is adjacent to the light transmitting area, the light transmitting area is provided with light rays transmitted by the transmission hidden type lamp strip, and the rocker keys penetrate through holes of the key panel. The multifunctional switch is used for solving the problems of high cost and large occupied space of the existing multifunctional switch.

Description

Multifunctional switch and steering wheel comprising same

Technical Field

The utility model relates to the field of automobile parts, in particular to a multifunctional switch and a steering wheel comprising the same.

Background

The steering wheel multi-function switch generally implements such 5-way control functions by vertically pressing front, rear, left, right, and center in two ways. One of them is a touch key type, namely, the control in 4 directions of front, back, left and right and the vertical pressing of a mechanical key are controlled by touch to realize 5-direction control. The other is realized by 5 single-function key combinations, namely 4 single-function keys for front-back left-right control are arranged around the middle single-function key to realize 5-direction control. The former has higher cost, and the latter has large occupied space of keys and does not have the warning function of safe driving.

SUMMERY OF THE UTILITY MODEL

In view of the above disadvantages of the prior art, the present invention provides a multi-function switch and a steering wheel including the same, so as to solve the problems of high cost, large occupied space and no safety warning function of the conventional multi-function switch.

To achieve the above and other related objects, the present invention provides a multi-function switch adapted to a steering wheel of a vehicle, comprising: switch base, circuit board, fixed bolster, rocker button and button panel. The switch base is arranged in a spoke of the steering wheel; the circuit board is arranged on the switch base, and a micro switch unit and a hidden light bar are arranged on the circuit board; the fixed bracket is arranged on the switch base; the rocker button is movably connected with the fixed support, is in contact with the micro switch unit and starts the micro switch unit through touch; the key panel is arranged on spokes of the steering wheel and covers the fixed support, a first film is arranged on the outer surface of the key panel, the first film comprises a shading area and a light transmitting area, the shading area is adjacent to the light transmitting area, the light transmitting area is configured to transmit light emitted by the hidden light bar, and the rocker keys penetrate through holes of the key panel.

In an embodiment of the present invention, the hidden light bar includes: the light source is electrically connected with the circuit board, and the light guide piece is arranged between the light source and the light transmitting area.

In an embodiment of the present invention, one side of the light guide member is provided with a light transmitting structure, and the other side of the light guide member is provided with a light reflecting structure.

In an embodiment of the present invention, the light-transmitting structure is a smooth surface, and the light-reflecting structure is a sawtooth structure.

In an embodiment of the utility model, the first light source is an RGB LED lamp.

In an embodiment of the present invention, an ink layer is disposed in the light-shielding region.

In one embodiment of the present invention, the microswitch unit includes: and the five micro switches are respectively and electrically connected with the circuit board.

In an embodiment of the present invention, a contact surface between the rocker button and the micro switch is a spherical surface.

In one embodiment of the present invention, the first film is an integrally formed structure.

In an embodiment of the present invention, the key panel is clamped to the fixing bracket.

The utility model also provides a steering wheel, wherein spokes are arranged on the steering wheel, a first multifunctional switch and a second multifunctional switch are arranged on the spokes, the first multifunctional switch and/or the second multifunctional switch are/is the switches, a circuit board of the first multifunctional switch is connected with the second multifunctional switch through an analog signal transmission line, and the circuit board of the first multifunctional switch or the circuit board of the second multifunctional switch is respectively connected with a port corresponding to a clock spring through an analog signal transmission line and a CAN bus.

The multifunctional switch has the advantages of low cost and small occupied area, and the front, back, left and right and vertical downward five-direction adjustment is realized by touching the micro switch unit. The hidden lamp strip is arranged below the key panel, the shading area on the key panel is used for shading light, and the light transmitting area is used for transmitting light, so that the hidden lamp strip forms a hidden light source which is visible when being lightened and invisible when not being lightened. Hidden lamp strip has higher science and technology to feel, possesses the safety warning effect simultaneously to make multi function switch possess higher integrated level.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a portion of a steering wheel and a multi-function switch;

FIG. 2 is a schematic view of a steering wheel with a multi-function switch;

FIG. 3 is an enlarged view of region I in FIG. 2;

FIG. 4 is a cross-sectional view A-A of FIG. 2;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 6 is an enlarged view of area II of FIG. 4;

fig. 7 is a schematic diagram of the electrical connections inside the steering wheel.

Description of the element reference numerals

100. A multifunctional switch; 101. a switch base; 102. a circuit board; 103. fixing a bracket; 110. a rocker button; 111. a rocker; 112. a first bracket; 113. a second bracket; 114. a touch pad; 115. a bump; 120. a key panel; 121. a first region; 130. a microswitch unit; 131. a microswitch; 140. a hidden light bar; 141. a first light source; 1410. a light guide; 1411. a light-transmitting structure; 1412. a light reflecting structure; 150. a first film; 1510. a light-shielding area; 1511. an ink layer; 152. a light-transmitting region; 200. a steering wheel; 201. spokes; 202. a light bar; 203. a driving mode switch.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. It is also to be understood that the terminology used in the examples is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention. Test methods in which specific conditions are not specified in the following examples are generally carried out under conventional conditions or under conditions recommended by the respective manufacturers.

It should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "middle" and "one" used in the specification are for clarity of description only, and are not intended to limit the scope of the utility model, and the relative relationship between the terms and the terms is not limited by the technical contents of the essential changes.

Referring to fig. 1 to 6, the present invention provides a multifunctional switch 100 for a steering wheel 200 of a vehicle, including: switch base 101, circuit board 102, fixed bolster 103, rocker button 110 and key panel 120. The switch base 101 is disposed in a spoke 201 of the steering wheel, and the spoke 201 is disposed at 3/9 o' clock of the rim of the steering wheel. The circuit board 102 is disposed on the switch base 101, and is provided with a micro switch unit 130 and a hidden light bar 140, and the circuit board 102 is provided with a controller, which is at least electrically connected to the micro switch unit 130 and the hidden light bar 140. A fixing bracket 103 is mounted on the switch base 101 for mounting a key panel 120 to support the rocker key 110. The rocker button 110 is movably connected to the fixing bracket 103, contacts the micro switch unit 130, and activates the micro switch unit 130 by touching the micro switch unit 130. The rocker button 110 can rotate on the fixing bracket 103, so as to touch the micro switch unit 130 in different directions, and finally realize the control and selection in the front-back, left-right and vertical downward directions. The key panel 120 is disposed on the spokes 201 of the steering wheel and covers the fixing bracket 103, the outer surface of the key panel is provided with a first film 150, the first film 150 includes a light shielding region 1510 and a light transmitting region 152, the light shielding region 1510 is adjacent to the light transmitting region 152, the light transmitting region 152 is configured to transmit light emitted by the hidden light bar 140, and the rocker key 110 passes through a through hole of the key panel 120. The key panel 120 is made of a transparent or translucent material at least in the first area 121, and the first area 121 at least covers the transparent area 152.

Referring to fig. 1 and 4, the rocker button 110 has four directions (i.e., A, B, C, D directions in fig. 1) of operation and control functions in 5 directions perpendicular to the downward direction of the button panel 120 (i.e., Z direction in fig. 1). The Circuit Board 102 is a PCB (Printed Circuit Board) Board. The rocker button 110 includes a rocker 111, a first bracket 112, and a second bracket 113. The rocker 111 is in contact with the micro switch 131 at the bottom through a through hole in the center of the first bracket 112, the rocker 111 is in snap fit with the first bracket 112 through a male and a female, and the rocker 111 can slide along the through hole in the center of the first bracket 112. The first bracket 112 is rotatably mounted on the second bracket 113 through protruding shafts at both sides thereof. The second bracket 113 is rotatably mounted on the fixed bracket 103 by means of protruding shafts at both sides thereof. Meanwhile, the bottom of the first bracket 112 is provided with a contact pad 114, and spherical bumps 115 are arranged around the contact pad 114 and are in contact fit with the micro-switches on the PCB 102 through the bumps. When the rocker button 110 is operated, the rocker 111 swings left and right in front of, behind, and drives the touch pad 114 at the bottom of the first bracket 112 to move up and down, left and right, and the convex block on the touch pad 114 can press the micro switch 131 at the corresponding position to trigger the micro switch control signal at the corresponding position. When the external force is removed, the rocker 111 is reset under the elastic force of the microswitch. When the rocker button 110 is pressed, the rocker 111 slides along a direction perpendicular to the button panel 120, and a micro switch located at a middle position on the PCB 102 is directly pressed through a lower portion of the rocker 111 to trigger a control signal of the micro switch.

The rocker button 110 is small and convenient to arrange, and the exposed part of the rocker can be designed into various types, such as a round button, a polygonal button, or a spherical cap button.

In an embodiment of the present invention, the controllers are further electrically connected to the light bars 202 located on the same side.

Referring to fig. 2 and 7, in an embodiment of the present invention, the controller is further electrically connected to the driving mode switch 203 and the hands-off detection sensor, respectively. The light bar is arranged on a rim of a steering wheel, the driving mode switch 203 is arranged on a spoke 201 of the steering wheel, and the hands-off detection sensor is positioned in the rim (not shown). The light bar 202, the driving mode switch 203, and the hands-off detection sensor are hard wired to the respective interfaces of the circuit board 102. The hard wire is a line for transmitting an analog signal, i.e., an analog signal transmission line.

It should be noted that the electrical connection between the controller and the corresponding device can be directly realized through the port and the wire, and can also be realized through the corresponding peripheral circuit, the port, and the connecting wire. The peripheral circuit includes driving and control circuits for the respective devices. The specific implementation manner can be selected according to actual implementation conditions or requirements, and is not described in detail herein. The corresponding device refers to a device controlled by the controller.

According to the utility model, the steering wheel hands-off detection sensor HOD, the steering wheel rim light bar, the driving mode switch 203 and the multifunctional switch share the same controller ECU (Electronic Control Unit), so that the number of the ECUs is reduced, the arrangement space is saved, and the hardware cost is reduced.

Referring to fig. 4, in an embodiment of the present invention, the hidden light bar 140 includes: the first light source 141 is electrically connected to the circuit board 102, and the light guide 1410 is disposed between the first light source 141 and the light-transmitting region 152.

Referring to fig. 6, in an embodiment of the utility model, the light guide 1410 is a light guide bar, a light transmission structure 1411 is disposed at an end of the light guide bar, the light transmission structure 1411 extends to one side of an upper portion of the light guide bar, and a light reflection structure 1412 is disposed at the other side of the upper portion of the light guide bar. For example, the light transmitting structure 1411 is a smooth surface, and the light reflecting structure 1412 is a sawtooth microstructure. The sawtooth-shaped microstructure can effectively reflect light to the light transmitting side and emit the light from the smooth surface. The light-transmitting region 152 of the first film 150 is located outside the light-transmitting structure 1411 to facilitate light emission. Fig. 6 a-b show the light emitting areas of the hidden light bars.

In an embodiment of the utility model, the first light source 141 is a plurality of RGB three-color LED lamps. The first light source can realize multiple light emitting modes under the control of the controller, so that a warning effect is achieved for a driver.

Referring to fig. 6, In an embodiment of the present invention, the first film 150 is formed by a PVD (Physical Vapor Deposition) process or an IML (In Molding lab) process. An ink layer 1511 is disposed in the light-shielding region 1510. Printing ink layer 1511 can effectively shelter from light to make the lamp when not lighting, printing opacity district exposed surface tectorial membrane outward appearance keeps unanimous basically with the outward appearance in shading district, hardly discerns inside first light source, thereby realizes hiding the effect. When the light bar is lit, light passes through the transparent or translucent key panel 120 intermediate layer and the PVD or IML coating outside the intermediate layer, making the light bar visible.

Compared with a common multifunctional switch, the hidden lamp strip has a warning function realized by changing the color of light. The hidden lamp strip is only visible when the lamp is lighted, so the science and technology sense is strong.

In an embodiment of the present invention, the micro switch unit 130 includes: five micro-switches 131 electrically connected to the controller on the circuit board 102, respectively. The five microswitches 131 are respectively: a first microswitch, a second microswitch, a third microswitch, a fourth microswitch and a fifth microswitch; the fifth microswitch is arranged in the middle, and the first, second, third and fourth microswitches are respectively arranged in the front, back, left and right directions of the fifth microswitch.

In an embodiment of the present invention, the outer surface of the micro switch 131 is a spherical surface with elasticity, and the contact surface of the rocker button 110 for contacting with the micro switch is a spherical surface. The spherical contact enables more flexibility in the contact of the rocker button 110 with the microswitch 131.

In one embodiment of the present invention, the first film 150 is an integrally formed structure. The integrated structure makes the first light source more hidden, which is beneficial to improving the science and technology sense.

Referring to fig. 4, in an embodiment of the utility model, the key panel 120 is clamped on the fixing bracket 103. The key panel 120 is clamped on the fixing support 103, so that the key panel 120 can be detached from the switch base 101, and later maintenance is facilitated.

Referring to fig. 2, the present invention further provides a steering wheel 200, wherein a spoke 201 is disposed on the steering wheel 200, a first multifunctional switch and a second multifunctional switch are disposed on the spoke 201, the first multifunctional switch and/or the second multifunctional switch are/is the multifunctional switch 100 in any of the above embodiments, a circuit board of the first multifunctional switch is connected to a circuit board of the second multifunctional switch through a hard wire, and the circuit board of the first multifunctional switch or the circuit board of the second multifunctional switch is connected to a port corresponding to a clock spring through a hard wire and a CAN bus, respectively.

Referring to fig. 7, in an embodiment of the present invention, the circuit board of the second multifunctional switch is connected to the corresponding port of the clock spring through a hard wire and a CAN bus, respectively. The first multifunctional switch on the left side and the second multifunctional switch on the right side are connected through hard wires to realize data exchange and power supply. The second multifunctional switch on the right side is connected with a clock spring CAN port of the combined switch through a CAN bus, and meanwhile, the second multifunctional switch on the right side is connected with a clock spring through a hard wire so as to obtain power supply from the outside.

Referring to fig. 7, in an embodiment of the utility model, a first controller is disposed on a circuit board of the first multifunctional switch, and the first controller is electrically connected to the first multifunctional switch (including the micro switch unit and the first hidden light bar), the light bar 202, the hands-off detection sensor, and the driving mode switch 203 on the left side. A second controller is arranged on a circuit board of the second multifunctional switch, and the second controller is respectively and electrically connected with the second multifunctional switch (comprising a micro switch unit and a second hidden light bar) and the light bar 202 which are positioned on the right side. The light bar, the hands-off detection sensor and the driving mode switch 203 are connected to corresponding interfaces on corresponding circuit boards through hard wires. The first controller, the second controller and the corresponding driving and control circuits are realized by digital circuits, and can convert analog signals into digital signals. The ASDM in fig. 7 is an active safety control module; VDDM is a management module of the dynamic domain of the whole vehicle; the CEM is a central electronic control module.

Therefore, the first multifunctional switch CAN receive the state information of the contact between the hands of the person and the wheel rim of the steering wheel, which is acquired by the hands-off detection sensor HOD, and transmits the information to other controllers on the vehicle-mounted network of the whole vehicle through the CAN bus after the information is processed by the controller ECU. The first multifunctional switch integrates the controller of the driving mode switch 203, so the driving mode switch 203 is equivalent to a sub-key of the multifunctional switch in principle, and the operation signal of the driving mode switch 203 is processed by the controller ECU of the multifunctional switch and then transmitted to other controllers on the vehicle-mounted network of the whole vehicle through the CAN bus. The controller of the multifunctional switch is also a controller of the rim light bar 202 of the steering wheel and the hidden light bar carried by the controller, and can receive warning light instruction information sent by other controllers of the vehicle-mounted network of the whole vehicle, and control the rim light bar of the steering wheel and the hidden light bar of the multifunctional switch to make corresponding light actions according to the requirements of the instructions, so that the aim of transmitting safety warning information to a driver is fulfilled. It should be noted that the corresponding control method of the device in the present invention may be any suitable control method existing in the automation field, and is not described in detail herein.

The rocker button 110 of the multifunctional switch of the present invention has the advantages of low cost and small occupied area, and the adjustment in the front, back, left, right, and vertical downward five directions is realized by pressing the micro switch unit 130. The hidden light bar 140 is disposed under the key panel 120, the light-shielding region 1510 of the key panel 120 is used for shielding light, and the light-transmitting region 152 is used for transmitting light, so that the hidden light bar 140 constitutes a hidden light source, which is visible when lit and invisible when unlit. Hidden lamp 140 strips have higher science and technology and feel, possess the safety warning effect simultaneously to make multifunctional switch possess higher integrated level.

Therefore, the utility model effectively overcomes some practical problems in the prior art, thereby having high utilization value and use significance.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. A multi-function switch adapted for use with a vehicle steering wheel, comprising:

the switch base is arranged in a spoke of the steering wheel;

the circuit board is arranged on the switch base, and a micro switch unit and a hidden light bar are arranged on the circuit board;

the fixed bracket is arranged on the switch base;

the rocker key is movably connected with the fixed support, is in contact with the micro switch unit and starts the micro switch unit through touch;

the key panel is arranged on spokes of the steering wheel and covers the fixed support, a first film is arranged on the outer surface of the key panel, the first film comprises a shading area and a light transmitting area, the shading area is adjacent to the light transmitting area, the light transmitting area is configured to transmit light emitted by the hidden light bar, and the rocker keys penetrate through holes of the key panel.

2. The multi-function switch of claim 1, wherein the recessed light bar comprises: the light source is electrically connected with the circuit board, and the light guide piece is arranged between the light source and the light transmitting area.

3. The multifunctional switch according to claim 2, wherein said light guide member is provided with a light transmitting structure on one side and a light reflecting structure on the other side.

4. The multi-function switch of claim 3, wherein the light transmissive structure is a smooth surface and the light reflective structure is a saw-toothed structure.

5. The multi-function switch of claim 2, wherein the first light source is an RGB LED lamp.

6. The multi-function switch of claim 1, wherein an ink layer is disposed within the light-blocking region.

7. The multi-function switch of claim 1, wherein the micro-switch unit comprises: and the five micro switches are respectively and electrically connected with the circuit board.

8. The multi-function switch of claim 7, wherein the contact surface of said rocker button and said micro-switch is spherical.

9. The multi-function switch of claim 1, wherein the first membrane is a unitary structure.

10. A steering wheel is provided with spokes, and is characterized in that the spokes are provided with a first multifunctional switch and a second multifunctional switch, the first multifunctional switch and/or the second multifunctional switch are/is the switches of any one of claims 1 to 9, a circuit board of the first multifunctional switch is connected with the second multifunctional switch through an analog signal transmission line, and the circuit board of the first multifunctional switch or the circuit board of the second multifunctional switch is respectively connected with a port corresponding to a clock spring through an analog signal transmission line and a CAN bus.

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