Vehicle steering wheel
By setting custom function switches and adjustment switches on the steering wheel, the driver's line of sight shift is solved, achieving safer and more convenient driving operations.
Patent Information
- Application Number
- CN202422371265.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The existing vehicle steering wheel cannot operate effectively, resulting in drivers needing to frequently divert their sight during driving, increasing the risk of accidents.
Set custom function switches and function adjustment switches on the steering wheel, including forward adjustment switches and reverse adjustment switches, and set custom functions through the vehicle computer to reduce line of sight transfer and improve operation convenience.
Through the design of custom function switches and adjustment switches, users can reduce the number of sight transfers according to common functions, improve driving safety and operation convenience according to common functions.
Smart Images
Figure CN223253057U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of vehicle hardware design, and more specifically, to a vehicle steering wheel. Background Art
[0002] With the development of technology, more and more vehicles are beginning to adopt intelligent systems. Almost all car manufacturers are transferring important functions to the central control touch screen. This design forces the driver to take his eyes off the road when he wants to perform certain functions during driving, increasing the risk of accidents caused by distraction. Utility Model Content
[0003] In view of this, the present application provides a vehicle steering wheel to solve the problem that the existing steering wheel cannot realize its operating functions.
[0004] In order to achieve the above objectives, the following solutions are proposed:
[0005] The utility model provides a vehicle steering wheel, comprising: a steering wheel body, wherein the steering wheel body is provided with: at least one function switch group, wherein the function switch group comprises: a custom function switch and a function adjustment switch, wherein the function adjustment switch is used to adjust the function effect of the custom function switch, and wherein the function adjustment switch comprises: a forward adjustment switch and a reverse adjustment switch;
[0006] The custom function switch has: a control signal input terminal, a control signal output terminal and a function definition signal input terminal;
[0007] The control signal input terminal is connected to the forward signal output terminal of the forward regulating switch and the reverse signal output terminal of the reverse regulating switch respectively;
[0008] The control signal output terminal is connected to the function implementation signal input terminal of the central control module;
[0009] The function definition signal input terminal is connected to the function setting signal output terminal of the vehicle computer.
[0010] In a possible implementation, the function definition signal input terminal is connected to the function setting signal output terminal of the vehicle computer, including:
[0011] The function definition signal input terminal is connected to the function definition signal output terminal of the central control module;
[0012] The function definition signal input terminal of the central control module is connected to the function setting signal output terminal of the vehicle computer.
[0013] In a possible implementation, the custom function switch and the function adjustment switch include: a push-button switch, a lever switch, or a rotary switch.
[0014] In a possible implementation, the method further includes:
[0015] The control signal output terminal of the custom function switch is connected to the display content input terminal of the display device.
[0016] In a possible implementation, when the custom function switch is a push-button switch, the custom function switch further includes: a display screen provided on a surface of the button, the display screen being used to display an identifier of the function set for the custom function switch.
[0017] In a possible implementation, the function switch group is arranged at a first position of the steering wheel, where the first position is a position on a transverse center axis of the steering wheel when the steering wheel is in a return state.
[0018] In a possible implementation, when the custom function switch is a lever switch and the adjustment switch is a rotary switch or a push-button switch, the method further includes:
[0019] The custom function switch is arranged on the lower side of the steering wheel;
[0020] The regulating switch is arranged on the upper surface of the spoke of the steering wheel.
[0021] In a possible implementation, the function switch group is a rotary switch, and the rotary switch includes: a first rotation direction, a second rotation direction, and an original rotation position, wherein the original rotation position is a custom function switch, the first rotation direction is a forward adjustment switch, and the second rotation direction is a reverse adjustment switch.
[0022] In a possible implementation, the device further includes: a signal receiver, wherein a signal output terminal of the signal receiver is connected to the control signal input terminal of the custom function switch.
[0023] In a possible implementation, the device further includes: a light strip disposed at the bottom of the custom function switch, wherein the light strip is connected to the function definition signal input terminal.
[0024] The vehicle steering wheel provided in the present application is provided with at least one customizable function switch. The user can set the functions that can be achieved by the custom function switch through the vehicle computer. Based on this, the user can set the function of the custom function switch according to the functions commonly used by the user while driving, thereby improving the convenience of the user in achieving a certain function while driving, while reducing the number of times the user's line of sight is diverted while driving, thereby improving driving safety.
[0025] At the same time, this application sets up associated forward adjustment buttons and reverse adjustment buttons for the custom function switch to avoid the situation where one function switch cannot adjust the functions that need to be adjusted, such as volume, temperature, etc. The forward adjustment button and reverse adjustment button can realize two-way function adjustment, thereby improving the comprehensiveness of the custom function switch of the steering wheel. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.
[0027] Figure 1 A schematic structural diagram of a vehicle steering wheel provided by an embodiment of the present utility model;
[0028] Figure 2 A schematic diagram of the internal connections of a vehicle steering wheel provided by an embodiment of the present utility model;
[0029] Figure 3 A schematic diagram of a process flow for setting a function of a custom function switch provided by an embodiment of the present utility model;
[0030] Figure 4 An example diagram of a function switch group provided by an embodiment of the present utility model;
[0031] Figure 5 This is an example diagram of another functional switch group provided by an embodiment of the present utility model;
[0032] Figure 6 A schematic structural diagram of another vehicle steering wheel provided by an embodiment of the present utility model;
[0033] Figure 7 A schematic diagram of a rotary switch provided in an embodiment of the present utility model.
[0034] Reference numerals:
[0035] 10-steering wheel body; 20-function switch group; 21-custom function switch; 22-forward adjustment switch; 23-reverse adjustment switch; 30-another function switch group; 11-wheel hub; 12-rim; 13-spokes; 1-control signal input terminal; 2-control signal output terminal; 3-function definition signal input terminal; 4-forward signal output terminal; 5-reverse signal output terminal; 6-function implementation signal input terminal; 7-function setting signal output terminal. DETAILED DESCRIPTION
[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not have contradictions or conflicts, all of which are within the scope of protection claimed in the present invention.
[0037] To achieve minimalist interior design, existing technologies have shifted many functions previously controlled by physical buttons to the central control touchscreen. This forces the driver to divert their gaze while driving, increasing driving risks. Some vehicles, however, place numerous physical buttons on the center console and steering wheel for easier operation. This, in turn, requires users to spend considerable time familiarizing themselves with the location of each button. Furthermore, improper placement of frequently used buttons can hinder driver experience.
[0038] Based on this, in order to take into account the simple design style of the vehicle interior and the functional realization of safe driving, the embodiment of the present invention proposes a vehicle steering wheel, which adds functionally definable physical buttons to the steering wheel to reduce the time the driver's field of vision is away from the road, thereby promoting safer driving.
[0039] Reference Figure 1 , a structural schematic diagram of a vehicle steering wheel provided by an embodiment of the present utility model illustrates the structure of the vehicle steering wheel.
[0040] A vehicle steering wheel includes: a steering wheel body 10, on which is provided: at least one function switch group 20, the function switch group 20 including: a custom function switch 21 and a function adjustment switch, the function adjustment switch being used to adjust the function effect of the custom function switch 21, and the function adjustment switch including: a forward adjustment switch 22 and a reverse adjustment switch 23.
[0041] It is understood that the custom function switch and the function adjustment switch belong to the same physical key group, but within this physical key group, the custom function switch and the function adjustment switch are independent of each other. The functions controlled by the custom function switch can be customized by the user, for example, defining them as seat heating, seat ventilation, seat massage, air conditioning temperature, air conditioning air volume, sunroof switch, sunshade switch, steering wheel heating, music switching, etc.
[0042] The function adjustment switch adjusts the functional effects achieved by the custom function switch. For example, if the function defined by the custom function switch is music switching, the function adjustment switch is used to switch the playing music to the "previous" or "next" track. It is understood that functional effects are often adjusted in both the forward and reverse directions. Therefore, the function adjustment switch is split into two switches, namely the forward adjustment switch and the reverse adjustment switch. When the user operates the forward adjustment switch, the playing music switches to the "next track", and when the user operates the reverse adjustment switch, the playing music switches to the "previous track".
[0043] Reference Figure 2 , an embodiment of the present invention provides a schematic diagram of the internal connection of a vehicle steering wheel, which illustrates the internal connection relationship of the vehicle steering wheel.
[0044] The custom function switch has: a control signal input terminal 1, a control signal output terminal 2 and a function definition signal input terminal 3; the control signal input terminal 1 is connected to the forward signal output terminal 4 of the forward adjustment switch and the reverse signal output terminal 5 of the reverse adjustment switch respectively; the control signal output terminal 2 is connected to the function implementation signal input terminal 6 of the central control module; the function definition signal input terminal 3 is connected to the function setting signal output terminal 7 of the vehicle computer.
[0045] In an embodiment of the present utility model, the forward regulation switch and the reverse regulation switch do not need to perform function customization steps. The forward regulation switch and the reverse regulation switch are designed to only output forward regulation signals and reverse regulation signals to the customized function switch. For example, the forward regulation signal is a high-level electrical signal, and the reverse regulation signal is a low-level electrical signal. That is, when the user operates the forward regulation switch, the forward regulation switch transmits a high-level electrical signal, that is, a forward regulation signal, to the control signal input terminal 1.
[0046] When the central control module receives a positive adjustment signal through the function implementation signal input terminal 6, it adjusts the function implementation effect in combination with the function set by the custom function switch. The central electronic control module (CEM), also known as the body electronic module or body controller, is a key module in the vehicle for managing and controlling body-related functions.
[0047] For example, the function set for the custom function switch is volume adjustment. The central control module identifies whether the received adjustment signal is a high level or a low level. If it is a high level, it determines to adjust the volume in a positive direction to control the speaker to amplify the volume; if it is a low level, it determines to adjust the volume in a negative direction to control the speaker to reduce the volume.
[0048] The user sets the function of the custom function switch through the vehicle computer. Figure 3 , a schematic diagram of a flow chart of function setting of a custom function switch provided by an embodiment of the present utility model.
[0049] Optionally, the user can activate the function setting for a custom function switch by continuously triggering the custom function switch for a certain period of time. For example, if the custom function switch is a push-button switch, the user can trigger the function setting for the custom function switch by long-pressing the button, and the function selection list will be displayed on the screen. Similarly, if the custom function switch is a lever switch or a rotary switch, long-pressing it in any of the toggle or rotation directions will activate the function setting for the custom function switch.
[0050] Furthermore, the vehicle computer screen responds to the user's selection or confirmation operation of any function in the function selection list. The vehicle computer generates a function setting signal based on the selected function, and transmits it to the function definition signal input terminal 3 through the function setting signal output terminal 7 of the vehicle computer, thereby completing the function setting of the custom function switch.
[0051] Optionally, considering that the central control module needs to combine the functions of the custom function switch when implementing its functions, in one possible implementation, each time the custom function switch sends a control signal to the central control module, it also adds information about the function set by the switch to the control signal.
[0052] In another possible implementation, the function implementation requirements of the central control module can also be met through the connection method between the vehicle computer and the central control module, that is: the function definition signal input end is connected to the function definition signal output end of the central control module; the function definition signal input end of the central control module is connected to the function setting signal output end of the vehicle computer.
[0053] The vehicle computer first transmits the function setting signal to the central control module, allowing it to back up the function set by the custom function switch. The central control module then transmits the function setting signal to the custom function switch to complete the function setting. Based on this, the central control module does not need to obtain function information from the custom function switch each time it implements a function, improving function implementation efficiency.
[0054] Reference Figure 3In the embodiment of the present utility model, more than one function switch group can be set on the steering wheel body, such as Figure 1 The steering wheel body is also equipped with another function switch group 30, including, for example, a custom function switch F1 in function switch group Z1, a custom function switch F2 in function switch group Z2, and a custom function switch F3 in function switch group Z3. Furthermore, the function of each custom function switch in each function switch group can be set on the vehicle computer screen, such as setting F1 to air conditioning air volume, F2 to seat ventilation, and F3 to sunroof switch. After the setting is completed, a prompt indicating the setting result, such as "Setting Successfully," is displayed on the vehicle computer screen.
[0055] Another way to set the function of the custom function switch is to realize wireless communication between the vehicle computer and the terminal through the vehicle's GW gateway. The terminal can be a mobile phone, computer, tablet, etc. The user can remotely set the function of the custom function switch through the terminal and send it to the vehicle computer, which will automatically adjust the function of the custom function switch.
[0056] Based on this, users can set the function of each custom function switch on the vehicle's steering wheel based on the physical switch location and frequently used driving functions. While driving, users can directly access common functions on the steering wheel, reducing the time required to familiarize themselves with the vehicle's physical switches, while also minimizing distraction while driving and improving driving safety.
[0057] To sum up, the vehicle steering wheel provided in this application is equipped with at least one customizable function switch. The user can set the functions that can be achieved by the custom function switch through the vehicle computer. Based on this, the user can set the function of the custom function switch according to the commonly used functions for personal driving, thereby improving the convenience of the user to realize a certain function while driving, and at the same time reducing the number of times the user's line of sight is diverted while driving, thereby improving driving safety.
[0058] At the same time, this application sets up associated forward adjustment buttons and reverse adjustment buttons for the custom function switch to avoid the situation where one function switch cannot adjust the functions that need to be adjusted, such as volume, temperature, etc. The forward adjustment button and reverse adjustment button can realize two-way function adjustment, thereby improving the comprehensiveness of the custom function switch of the steering wheel.
[0059] Next, other possible implementations of a vehicle steering wheel provided by an embodiment of the present utility model are described.
[0060] Optionally, the custom function switch and function adjustment switch can be a push-button switch, a lever switch, or a rotary switch.
[0061] Reference Figure 4, an example diagram of a function switch group provided by an embodiment of the present invention, the function switch group is a set of custom function switches and function adjustment switches are all push-button switches, the function adjustment switch is implemented by two push-button forward adjustment switches and reverse adjustment switches. Figure 5 This example shows another function switch group provided by an embodiment of the present invention. In this function switch group, the custom function switch is a push-button switch, and the function adjustment switch is a lever-type switch. Pushing it upward outputs a positive adjustment signal, while pushing it downward outputs a negative adjustment signal. As can be seen, the implementation of each switch in a function switch group can be combined arbitrarily without specific limitations.
[0062] In a possible implementation, the vehicle steering wheel further includes: a control signal output terminal of the custom function switch is connected to a display content input terminal of the display device.
[0063] The display device can be a heads-up display or instrument panel display, and does not affect the driver's vision during driving. It is understandable that since the functions of custom function switches can be customized, the driver may forget the function currently set to the custom function switch if they do not drive the vehicle for an extended period. Therefore, in addition to accessing the custom function setting page on the vehicle computer screen to view the function corresponding to each custom function switch, the driver can also operate the custom function switch or function adjustment switch. In this case, the custom function switch sends the signal output from the control signal output terminal to the display device, which then displays the content of the control signal or the identifier of the function implemented by the control signal, such as a music symbol identifier for music switching and a speaker identifier for volume adjustment, to remind the user of the function of the current custom function switch.
[0064] In another possible implementation, when the custom function switch is a push-button switch, the custom function switch further includes: a display screen disposed on a surface of the button, the display screen being used to display an identifier of the function set by the custom function switch.
[0065] Reference Figure 5 The custom function switch is a push-button switch. A display screen is embedded in the upper surface of the push-button switch to display the function identifier of the set function, for example, Figure 5 The music symbol displayed in the indicates that the function set for this custom function switch is music switching. Based on this, users can directly view the function set for each custom function switch without having to browse the function list, improving switch usage efficiency.
[0066] Next, the arrangement positions of the function switch group on the steering wheel body will be described.
[0067] In one possible implementation, refer to Figure 6, a schematic structural diagram of another vehicle steering wheel according to an embodiment of the present invention, wherein the steering wheel body includes: a hub 11, a rim 12, and spokes 13 connecting the hub 11 and the rim 12. The function switch group 20 is set in the first position of the spoke 13, which is the position on the transverse center axis of the spoke 13 when the steering wheel is in the return state.
[0068] In the figure, the dotted line is the transverse center axis of the spoke 13, and the function switch group 20 is set at the position on the transverse center axis of the spoke, that is, the first position. It can be understood that when the user operates the steering wheel, the position where both hands are placed is on the rim of the transverse center axis, such as Figure 6 Therefore, by setting the function switch group in the first position, the user can trigger the function buttons with his thumb without even adjusting the posture of holding the steering wheel, which reduces the user's posture changes during driving and reduces driving risks.
[0069] In another possible implementation, referring to Figure 1 In the case where the custom function switch is a lever switch and the adjustment switch is a rotary switch or a push-button switch, it also includes: the custom function switch is arranged on the lower side of the steering wheel; the adjustment switch is arranged on the upper surface of the spoke.
[0070] Reference Figure 1 The stalk switch is located on the lower left side of the steering wheel body, specifically on the underside of the spokes. Optionally, it can be located on the lower right side of the steering wheel body. Push-button switches, which require front-actuation, are located on the upper surface of the spokes for easy front-actuation. This shows that the custom function switches and function adjustment switches within the function switch group can be set independently and are not necessarily bound together, enhancing the flexibility of steering wheel design.
[0071] In one possible implementation, the function switch group is a rotary switch, which includes: a first rotation direction, a second rotation direction, and an original rotation position, wherein the original rotation position is a custom function switch, the first rotation direction is a forward adjustment switch, and the second rotation direction is a reverse adjustment switch.
[0072] Rotary switches can usually rotate 180°, and the rotation direction can be divided into clockwise and counterclockwise. Based on this, the rotation signals of different rotation directions are associated with the signals of the custom function switch and function adjustment switch, so that the purpose of achieving three functional effects with one hardware switch is achieved.
[0073] like Figure 7, a schematic diagram of a rotary switch provided by an embodiment of the present invention, optionally, the figure shows a circular rotatable switch, and there is a position marking line in the rotary switch. The position of the position marking line rotates as the user rotates the rotary switch, which is used to indicate the current rotation position to the user.
[0074] In this example, the position indicated by the longitudinal center axis is the original rotation position, the leftward pointing position of the transverse center axis is the first rotation position, and the rightward pointing position of the transverse center axis is the second rotation position. The first rotation position is a positive adjustment switch. When the user rotates the switch to the first rotation position, the rotary switch transmits the left / counterclockwise rotation signal as a positive signal to the vehicle computer or central control module, thereby achieving positive adjustment of the function. Optionally, the demarcation of each rotation position and the type of function switch corresponding to each rotation position can be customized. This embodiment is for reference only and is not intended to be the only limitation.
[0075] The embodiment of the utility model combines the custom function switch and the function adjustment switch into one function switch by changing the hardware form of the switch, thereby saving space on the steering wheel. On the one hand, it saves more space on the steering wheel and provides more space for setting the function switch group. On the other hand, it improves the simplicity of the function switch design.
[0076] In a possible implementation, the vehicle steering wheel may further include: a signal receiver, wherein a signal output end of the signal receiver is connected to a control signal input end of the custom function switch.
[0077] In an embodiment of the present invention, the signal receiver adopts wireless signal transmission to collect the function adjustment signal sent from the mobile terminal, and sends the function adjustment signal to the vehicle computer or central control module through the control signal input terminal to realize wireless operation of related functions.
[0078] In another possible implementation, the vehicle steering wheel may further include: a light strip disposed at the bottom of the custom function switch, the light strip being connected to the function definition signal input terminal.
[0079] Typically, after the vehicle's computer is powered on, the corresponding icons and light strips for all buttons, levers, and other function switches in the vehicle will illuminate to indicate to the user that the vehicle has been started and the function is available. In this case, if the custom function switches in the vehicle's function switch group are not configured with any function, if the corresponding icons and light strips are illuminated, they will not respond to any user operations and may easily mislead the user.
[0080] Therefore, in this embodiment, a light strip is provided at the bottom of each custom function switch in each function switch group, and the light strip is connected to the function definition signal input terminal. If the light strip receives the function definition signal for the custom function switch, the light strip lights up; if it does not receive the function definition signal, the light strip turns off, thereby reminding the user that the function switch group is invalid and cannot be used.
[0081] To sum up, the embodiments of the present invention can meet the various needs of the driver by customizing the functions of physical switches / buttons, such as: setting physical buttons on the steering wheel to facilitate user control, customizing the functions of physical buttons to facilitate users to call commonly used functions, realizing the intelligence of the vehicle, while taking into account the simplification of the vehicle interior and omitting the setting of useless physical buttons.
[0082] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A vehicle steering wheel, characterized in that: include: A steering wheel body, the steering wheel body being provided with: at least one function switch group, the function switch group comprising: a custom function switch and a function adjustment switch, the function adjustment switch being used to adjust the function effect of the custom function switch, the function adjustment switch comprising: a forward adjustment switch and a reverse adjustment switch; The custom function switch has a control signal input terminal, a control signal output terminal and a function definition signal input terminal; The control signal input terminal is connected to the forward signal output terminal of the forward regulating switch and the reverse signal output terminal of the reverse regulating switch respectively; The control signal output terminal is connected to the function implementation signal input terminal of the central control module; The function definition signal input terminal is connected to the function setting signal output terminal of the vehicle computer.
2. The vehicle steering wheel according to claim 1, characterized in that The function definition signal input terminal is connected to the function setting signal output terminal of the vehicle computer, including: The function definition signal input terminal is connected to the function definition signal output terminal of the central control module; The function definition signal input terminal of the central control module is connected to the function setting signal output terminal of the vehicle computer.
3. The vehicle steering wheel according to claim 2, characterized in that: The custom function switch and the function adjustment switch include: a push-button switch, a lever switch, or a rotary switch.
4. The vehicle steering wheel according to claim 3, characterized in that: Also includes: The control signal output terminal of the custom function switch is connected to the display content input terminal of the display device.
5. The vehicle steering wheel according to claim 4, characterized in that: In the case that the custom function switch is a push-button switch, the custom function switch further comprises: a display screen provided on a surface of the button, wherein the display screen is used to display an identifier of the function set by the custom function switch.
6. The vehicle steering wheel according to claim 5, characterized in that: The function switch group is arranged at a first position of the steering wheel. The first position is a position on the transverse center axis of the steering wheel when the steering wheel is in a return state.
7. The vehicle steering wheel according to claim 6, characterized in that: In the case where the custom function switch is a lever switch, and the adjustment switch is a rotary switch or a push-button switch, the method further includes: The custom function switch is arranged on the lower side of the steering wheel; The regulating switch is arranged on the upper surface of the spoke of the steering wheel.
8. The vehicle steering wheel according to claim 7, characterized in that: The function switch group is a rotary switch, which includes: a first rotation direction, a second rotation direction and an original rotation position, wherein the original rotation position is a custom function switch, the first rotation direction is a forward adjustment switch, and the second rotation direction is a reverse adjustment switch.
9. The vehicle steering wheel according to claim 8, characterized in that: Also includes: A signal receiver, wherein the signal output end of the signal receiver is connected to the control signal input end of the custom function switch.
10. The vehicle steering wheel according to claim 9, characterized in that: Also includes: A light strip is provided at the bottom of the custom function switch, and the light strip is connected to the function definition signal input terminal.