A steering wheel switch structure for an automobile

Abstract

The utility model relates to a kind of steering wheel switch structure for automobile, including switch seat and plug-in terminal, the switch seat is connected by cable in plug-in terminal, the switch seat includes shell, key and running marquee area on the upper surface of shell, and light module in shell, wherein light module contains sequentially arranged substrate, lower light shield, key lamp light guide plate, upper light shield and running marquee light guide plate from bottom to top, at least one key lamp and multiple atmosphere lamps are distributed on the substrate, multiple atmosphere lamps are annularly distributed, two light shields are respectively provided with corresponding light transmission holes, and lower light shield is located between substrate and key lamp light guide plate, upper light shield is located between key lamp light guide plate and running marquee light guide plate, light shield bubble cotton is provided in the inner circle and outer periphery of annularly distributed atmosphere lamp, the light of key lamp is guided to corresponding key by key lamp light guide plate, the light of atmosphere lamp is guided to running marquee area by running marquee light guide plate.Effective prevention of light, and light effect is good.

Description

Technical Field

[0001] This utility model relates to the field of automotive electronics technology, specifically to a steering wheel switch structure for automobiles. Background Technology

[0002] Automotive steering wheel switches integrate numerous switching functions. Given limited space, implementing multiple backlighting and lighting effects can easily lead to light leakage in non-illuminated areas, and complex lighting effects are difficult to achieve due to space constraints. The shortcomings of existing technologies, such as light leakage in non-illuminated areas and the inability to achieve dynamic effects, urgently need to be addressed. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art by providing a steering wheel switch structure for automobiles that effectively prevents light leakage.

[0004] The technical solution of this utility model is as follows: A steering wheel switch structure for automobiles includes a switch base and a plug-in terminal. The switch base is connected to the plug-in terminal by a cable. The switch base includes a housing, a switch key and a marquee area located on the upper surface of the housing, and a lighting module located inside the housing. The lighting module includes a base plate, a lower light shield, a button light guide plate, an upper light shield, and a marquee light guide plate arranged sequentially from bottom to top. At least one button light and multiple ambient lights are distributed on the base plate. The multiple ambient lights are arranged in a ring. The two light shields are respectively provided with corresponding light-transmitting holes. The lower light shield is located between the base plate and the button light guide plate, and the upper light shield is located between the button light guide plate and the marquee light guide plate. Light-shielding foam is provided in the inner and outer circles of the ring-shaped ambient lights. The button light guide plate guides the light of the button light to the corresponding switch key, and the marquee light guide plate guides the light of the ambient lights to the marquee area.

[0005] By adopting the above technical solution, through the layered structure of the substrate, upper and lower light shields, and double light guide plates in the lighting module, combined with the light shielding foam to shield the inner and outer rings of the ambient light, the light paths of the button light and the ambient light are separated. The button light emits light precisely corresponding to the power button through the button light guide plate, while the ambient light is concentrated in the running light area through the running light guide plate, creating a dynamic visual effect, effectively avoiding the problem of light leakage, and improving the clarity and layering of the light emission effect.

[0006] A further feature of this invention is as follows: the outer casing has an upper accommodating chamber and a lower accommodating chamber. A main control board is installed in the lower accommodating chamber. The main control board is equipped with a micro switch, which is activated by a corresponding key. The main control board is connected to a plug-in terminal by a cable. The lighting module is located in the upper accommodating chamber, and its substrate is connected to the main control board by an IC chip.

[0007] By adopting the above-mentioned further configuration, the main control board and the lighting module are placed in the upper and lower accommodating chambers, and signal coordination is achieved through IC chip connection. This simplifies the internal wiring, ensures stable transmission of touch signal micro-switches and lighting control signals, and improves the integration and reliability of the overall structure.

[0008] A further feature of this invention is as follows: the outer shell includes a base portion and an upper cover portion that can move up and down relative to it. The lower accommodating chamber is located in the base portion, and the upper accommodating chamber is located in the upper cover portion. A balance bar that can swing up and down is provided between the upper cover portion and the base portion. The balance bar has a bar body and mounting portions at both ends of the bar body. The two mounting portions are rotatably mounted on both ends of the upper cover portion, and the bar body can move against the base portion.

[0009] By adopting the above-mentioned further design, the upper cover and the base are connected by a balance bar, so that the upper cover is subjected to balanced force when moving up and down, avoiding tilting or jamming when the power button is pressed, and improving the stability of the operation feel.

[0010] Further features of this invention: The upper cover includes an upper accommodating chamber formed by the cooperation of the cover base and the upper cover; the base includes a lower accommodating chamber formed by the cooperation of the base and the middle base; the balance bar is connected between the cover base and the middle base; the middle base is provided with a through hole A and a pressing hole for threading wires; the cover base is provided with a through hole B; the two ends of the IC chip are respectively inserted into the corresponding accommodating chambers through through holes A and through holes B; and the cover base is provided with a pressing rod for inserting into the pressing hole to press the micro switch; the power switch and the running light area are located on the upper cover; and the base is provided with a wire threading port for the cable to pass through.

[0011] By adopting the above-mentioned further configuration, the cooperation structure between the cover and the middle seat enables the IC chip to be connected across the housing and the key to accurately trigger the micro switch. At the same time, the assembly path of the cables and components is clearly defined, the assembly process is simplified, and the structural compactness is ensured.

[0012] A further feature of this invention is that the middle seat is provided with a vertical guide groove, and the cover seat is provided with a guide member, which is slidably disposed within the guide groove.

[0013] With the above-mentioned further design, the sliding fit between the guide groove and the guide component provides guidance for the up and down movement of the upper cover, further preventing deviation, ensuring the alignment accuracy of the switch and the micro switch, and improving operational reliability.

[0014] A further feature of this invention is as follows: a stop is provided on the middle seat, the rod of the balance bar abuts between the stop and the middle seat, and a locking device is provided on the cover, with the first mounting part and the second mounting part being locked onto the locking device.

[0015] With the above-mentioned further design, the stop restricts the range of motion of the balance bar, and the clamp fixes the mounting part of the balance bar, ensuring that the balance bar functions stably, avoiding loosening due to vibration or frequent operation, and extending its service life.

[0016] A further feature of this invention is that the cover and the top cover are connected by snap-fit ​​or screws, and the base and the middle seat are connected by snap-fit ​​or screws.

[0017] With the above-mentioned further design, the cover and the upper cover, as well as the base and the middle base, are connected by snaps or screws, which takes into account both assembly efficiency and connection strength, and adapts to different production needs. Attached Figure Description

[0018] Figure 1 This is a structural diagram of a specific embodiment of the present utility model; Figure 2 This is a structural diagram of the switch base according to a specific embodiment of the present utility model; Figure 3 This is a structural diagram of the switch base according to a specific embodiment of the present utility model; Figure 4 This is an exploded view of the switch base according to a specific embodiment of the present utility model; Figure 5 This is an exploded view of the lighting module according to a specific embodiment of the present utility model; Figure 6 This is a structural diagram of the outer shell of a specific embodiment of the present utility model; Figure 7 This is a structural diagram of the upper cover portion of a specific embodiment of the present utility model; Figure 8 This is a structural diagram of the base portion of a specific embodiment of the present utility model.

[0019] In the diagram: 1. Switch base; 2. Plug-in terminal; 3. Cable; 11. Housing; 11a. Upper accommodating chamber; 11b. Lower accommodating chamber; 111. Base part; 1111. Middle seat; 1112. Through hole A; 1113. Pressing hole; 1114. Guide groove; 1116. Stop; 1117. Wire hole; 1115. Upper cover part; 112. Cover seat; 1121. Through hole B; 1123. Touch lever; 1124. Guide part; 1125. Clip; 1126. Upper cover; 1122. Touch key; 12. Marquee area; 13. Lighting module; 14. Base plate; 141. Button light; 1411. Ambient light; 1412. Lower light shield; 142. Button light guide plate; 143. Upper light shield; 144. Marquee light guide plate; 145. Main control board; 4. Micro switch; 5. IC chip; 146. Balance bar; 7. Bar body; 71. Mounting part; 72. Detailed Implementation

[0020] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] like Figure 1-8 As shown, this utility model discloses a steering wheel switch structure for automobiles, including a switch base 1 and a plug-in terminal 2. The switch base 1 is connected to the plug-in terminal 2 by a cable 3. The switch base 1 includes a housing 11, a switch 12 and a running light area 13 located on the upper surface of the housing 11, and a light module 14 located inside the housing 11. The switch 12 can be touch-controlled or press-controlled. The light module 14 includes a base plate 141, a lower light shield 142, a button light guide plate 143, an upper light shield 144, and a running light guide plate 145 arranged sequentially from bottom to top. The base plate 141 has a distribution of up to There is one less button light 1411 and multiple ambient lights 1412. The multiple ambient lights 1412 are arranged in a ring. The two light shields are respectively provided with corresponding light-transmitting holes. The lower light shield 142 is located between the substrate 141 and the button light guide plate 143, and the upper light shield 144 is located between the button light guide plate 143 and the marquee light guide plate 145. Light-shielding foam is provided in the inner and outer circles of the ring-shaped ambient lights. The button light guide plate 143 guides the light of the button light 1411 to the corresponding switch 12, and the marquee light guide plate 145 guides the light of the ambient lights 1412 to the marquee area 13.

[0022] Specifically, the outer casing 11 has an upper accommodating chamber 11a and a lower accommodating chamber 11b. The main control board 4 is installed in the lower accommodating chamber 11b. The main control board 4 is equipped with a micro switch 5, which is activated by a corresponding switch 12. The main control board 4 is connected to the plug-in terminal 2 by a cable 3. The lighting module 14 is located in the upper accommodating chamber 11a, and its substrate 141 is connected to the main control board 4 by an IC chip 146. The outer casing 11 includes a base portion 111 and an upper cover portion 112 that can move up and down relative to it. The lower accommodating chamber 11b is located in the base portion 111, and the upper accommodating chamber 11a is located in the upper cover portion 112. A balance bar 7 that can swing up and down is provided between the upper cover portion 112 and the base portion 111. The balance bar 7 has a rod body 71 and mounting portions 72 at both ends of the rod body 71. The two mounting portions 72 are rotatably mounted on both ends of the upper cover portion 112, and the rod body 71 is movably abutted against the base portion 111. The upper cover portion 112 includes an upper receiving chamber 11a formed by the cooperation of the cover seat 1121 and the upper cover 1122. The base portion 111 includes a lower receiving chamber 11b formed by the cooperation of the base 1111 and the middle seat 1112. The cover seat 1121 and the upper cover 1122 are connected by a snap-fit ​​or a screw connection, and the base 1111 and the middle seat 1112 are connected by a snap-fit ​​or a screw connection. The balance bar 7 is connected between the cover seat 1121 and the middle seat 1112, and the middle seat 1112 is provided with a thread for threading. The cover 1121 has a hole A1113 and a pressing hole 1114. A through hole B1123 is provided on the cover 1121. The two ends of the IC chip 146 pass through the through holes A1113 and B1123 respectively into the corresponding receiving chambers 11a and 11b. The cover 1121 also has a pressing rod 1124 for inserting into the pressing hole 1114 to press the micro switch 5. The power switch 12 and the scrolling light area 13 are located on the upper cover 1122. The base 1111 has a wire through hole 1115 for the cable 3 to pass through. The middle base 1112 has a vertical guide groove 1116, and the cover 1121 has a guide member 1125, which is slidably disposed within the guide groove 1116. The middle seat 1112 is provided with a stop 1117, the rod 71 of the balance bar 7 abuts between the stop 1117 and the middle seat 1112, the cover 1121 is provided with a clip 1126, and the mounting part 72 is clipped onto the clip 1126. The main control board is also covered by a soft rubber cover.

[0023] 1. When the user operates the center position switch 12 on the steering wheel switch housing: the upper cover 112 moves downward under force, and the touch rod 1124 on the cover 1121 passes through the press hole 1114 of the center seat 1112, pressing the micro switch 5 on the main control board 4 in the lower housing 11b, generating an electrical signal; this signal is transmitted to the plug terminal 2 through the cable 3, and then transmitted to the vehicle control system to realize corresponding functions such as volume adjustment, cruise control, etc. The switch 12 in other positions can be a capacitive touch structure.

[0024] 2. Backlight and Ambient Light Control: The main control board 4 sends control signals to the substrate 141 of the lighting module 14 via the IC chip 146. When the button light 1411 on the substrate 141 is lit, the light is guided to the corresponding power button through the button light guide plate 143, so that the button character is lit to indicate the operation position; When the ring-shaped ambient lights 1412 are lit, the light is guided to the marquee area 13 by the marquee light guide plate 145. At the same time, the light-shielding foam on the inner and outer rings blocks stray light and prevents light from crossing with the button lights. If dynamic effects such as marquee are required, the main control board can control the ambient lights 1412 to light up / turn off in a preset sequence to achieve visual effects such as flowing water and flashing.

[0025] It should be noted that in the description of this utility model, all directional indicators (such as up, down, forward, backward, etc.) are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0026] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a number" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "installation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A steering wheel switch structure for automobiles, comprising a switch base (1) and a plug-in terminal (2), wherein the switch base (1) is connected to the plug-in terminal (2) by a cable (3), characterized in that: The switch base (1) includes a housing (11), a switch (12) and a marquee area (13) located on the upper surface of the housing (11), and a lighting module (14) located inside the housing (11). The lighting module (14) includes a base plate (141), a lower light shield (142), a button light guide plate (143), an upper light shield (144), and a marquee light guide plate (145) arranged sequentially from bottom to top. At least one button light (1411) and multiple ambient lights (1412) are distributed on the base plate (141). The multiple ambient lights (1412) are in the form of... The ambient lights are arranged in a ring. Each of the two light-shielding plates has a corresponding light-transmitting hole. The lower light-shielding plate (142) is located between the substrate (141) and the button light guide plate (143), and the upper light-shielding plate (144) is located between the button light guide plate (143) and the marquee light guide plate (145). Light-shielding foam is provided in the inner and outer circles of the ring-shaped ambient lights. The button light guide plate (143) guides the light of the button light (1411) to the corresponding switch (12), and the marquee light guide plate (145) guides the light of the ambient light (1412) to the marquee area (13).

2. The automotive steering wheel switch structure according to claim 1, characterized in that: The outer casing (11) is provided with an upper accommodating chamber (11a) and a lower accommodating chamber (11b). A main control board (4) is installed in the lower accommodating chamber (11b). The main control board (4) is provided with a micro switch (5) and is activated by a corresponding on / off switch (12). The main control board (4) is connected to the plug-in terminal (2) by a cable (3). The lighting module (14) is located in the upper accommodating chamber (11a), and its substrate (141) is connected to the main control board (4) by an IC chip (146).

3. The automotive steering wheel switch structure according to claim 2, characterized in that: The outer casing (11) includes a base portion (111) and an upper cover portion (112) that can move up and down relative to it. The lower accommodating chamber (11b) is located in the base portion (111), and the upper accommodating chamber (11a) is located in the upper cover portion (112). A balance bar (7) that can swing up and down is provided between the upper cover portion (112) and the base portion (111). The balance bar (7) has a rod body (71) and mounting portions (72) at both ends of the rod body (71). The two mounting portions (72) are rotatably mounted on both ends of the upper cover portion (112), and the rod body (71) is movably abutted against the base portion (111).

4. The automotive steering wheel switch structure according to claim 3, characterized in that: The upper cover portion (112) includes an upper receiving chamber (11a) formed by the cooperation of the cover base (1121) and the upper cover (1122). The base portion (111) includes a lower receiving chamber (11b) formed by the cooperation of the base (1111) and the middle seat (1112). The balance bar (7) is connected between the cover base (1121) and the middle seat (1112). The middle seat (1112) is provided with a through hole A (1113) for threading and a pressing hole (1114). The cover base (1121) is provided with... Through hole B (1123), the two ends of the IC chip (146) are inserted into the corresponding receiving chambers (11a, 11b) through through hole A (1113) and through hole B (1123) respectively, and the cover (1121) is provided with a pressing rod (1124) for inserting the pressing hole (1114) to press the micro switch (5). The switch (12) and the marquee area (13) are located on the upper cover (1122), and the base (1111) is provided with a wire hole (1115) for the cable (3) to pass through.

5. The automotive steering wheel switch structure according to claim 4, characterized in that: The middle seat (1112) is provided with a vertical guide groove (1116), and the cover seat (1121) is provided with a guide member (1125), which is slidably disposed in the guide groove (1116).

6. The automotive steering wheel switch structure according to claim 4, characterized in that: The middle seat (1112) is provided with a stop (1117), the rod body (71) of the balance bar (7) abuts between the stop (1117) and the middle seat (1112), the cover (1121) is provided with a clip (1126), and the mounting part (72) is clipped onto the clip (1126).

7. The automotive steering wheel switch structure according to claim 4, characterized in that: The cover (1121) and the top cover (1122) are connected by snap-fit ​​or screws, and the base (1111) and the middle seat (1112) are connected by snap-fit ​​or screws.

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