Switches, doors and vehicles

Abstract

This utility model relates to switch buttons, vehicle doors, and vehicles, specifically in the field of vehicles. This application aims to solve the technical problem of how to reduce the space occupied by switch buttons in vehicles, thereby facilitating their placement. The switch button of this application includes a switch housing, an end cap, a light-emitting element, and a light guide. The switch housing has a receiving cavity and an opening communicating with the receiving cavity; the end cap covers the opening; the end cap includes a central area and a light-transmitting area surrounding the central area; the light-emitting element is disposed within the receiving cavity; the light guide is disposed within the receiving cavity, located between the light-emitting element and the end cap, and is used to conduct light emitted by the light-emitting element to the light-transmitting area; along the direction from the light-emitting element to the end cap, the size of the light guide gradually increases in a first direction to reduce the volume of the light guide, thereby reducing the space occupied by the light guide within the switch housing and facilitating the placement of the switch button in the vehicle.

Description

Technical Field

[0001] This utility model relates to the field of vehicles, specifically to switch buttons, car doors, and vehicles. Background Technology

[0002] Vehicles typically have switches and buttons to allow drivers and passengers to control components that require switching on or off, such as door locks and window switches. To make these switches and buttons easily identifiable in low light conditions, such as at night, they are often equipped with illuminated patterns. These patterns illuminate in the dark to help drivers and passengers identify the switches and control certain parts of the vehicle.

[0003] In the prior art, an instrument switch assembly is provided, in which a button structure is located on the top of the housing, a hollow structure is arranged around the button structure, and four LED lights are spaced apart between the transmission blocks and arranged around the circular hollow structure.

[0004] However, the above-mentioned arrangement of the instrument switches results in a large space being occupied by the instrument switches, making it inconvenient to arrange the instrument switches on the vehicle. Utility Model Content

[0005] The purpose of this utility model is to provide a switch button, a car door, and a vehicle to solve the technical problem of how to reduce the space occupied by the switch button on the vehicle, so as to facilitate the arrangement of the switch button on the vehicle.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] In a first aspect, this application provides a switch button, which includes a switch housing, an end cap, a light-emitting element, and a light guide. The switch housing has a receiving cavity and an opening communicating with the receiving cavity. The end cap covers the opening. The end cap includes a central area and a light-transmitting area disposed around the central area. The light-emitting element is disposed in the receiving cavity. The light guide is disposed in the receiving cavity and is located between the light-emitting element and the end cap. The light guide is used to conduct light emitted by the light-emitting element to the light-transmitting area. Along the direction from the light-emitting element to the end cap, the size of the light guide gradually increases in a first direction, and the first direction is perpendicular to the arrangement direction of the light-emitting element and the end cap.

[0008] Based on the aforementioned technical means, the light-transmitting area of ​​the end cover is arranged around the central area, and the light guide is located between the light-emitting element and the end cover. The size of the light guide gradually increases in the first direction, allowing the light transmitted by the light guide to naturally diffuse circumferentially during its transmission to the end cover, precisely corresponding to the surrounding range of the light-transmitting area. This ensures that the light emitted by the light-emitting element is transmitted to the light-transmitting area of ​​the end cover, thereby improving the brightness of the end cover and facilitating identification by drivers and passengers. Furthermore, compared to a regular square structure, the gradually increasing size of the light guide in the first direction also allows for a reduction in the volume of the light guide, thus reducing the space occupied by the light guide within the switch housing. This, in turn, allows for a reduction in the size of the switch button, further minimizing the space occupied by the switch button and facilitating its placement in the vehicle.

[0009] In one possible implementation, the surface of the light guide facing the light-emitting element is a concave arc surface.

[0010] According to the above technical means, when the light emitted by the light-emitting element diffuses in all directions, different areas of the concave arc surface can correspond to incident light at different angles, capturing more oblique and scattered light that might otherwise escape to the outside of the light guide into the light guide, greatly improving the initial utilization rate of light. The concave arc surface can produce different refraction angles when the light from the light-emitting element enters the light guide. During the multiple reflections of the light on the arc surface and the inner wall of the light guide, the concentrated strong light from the light-emitting element is dispersed, and the weak light area is supplemented, ultimately significantly improving the brightness uniformity of the light entering the light guide and achieving uniform light output.

[0011] In one possible implementation, the light guide is provided with a groove, which is recessed from the surface of the light guide facing the cover plate away from the cover plate.

[0012] Based on the aforementioned technical means, when light propagates within the light guide, the edge of the groove and the inner wall can form a specific reflection or refraction interface. By designing the depth, width, and cross-sectional shape of the groove, the propagation path of the light can be specifically altered, achieving precise control over the light and improving the uniformity and directionality of the light's brightness. Secondly, the groove can reduce unnecessary material usage, achieving a lightweight light guide and lowering installation load and transportation costs.

[0013] In one possible implementation, the size of the groove gradually increases in the direction from the light-emitting element to the end cap.

[0014] According to the above technical means, the initial size of the groove near the light-emitting element is small, which can accurately collect the strong light in the core area of ​​the light-emitting element; as it extends towards the end cap, the size of the groove gradually increases, which can effectively accept the weak light or oblique light emitted from the edge of the light-emitting element, and prevent the light from escaping in the early stage of propagation due to insufficient groove size, greatly improving the retention rate of light after entering the groove, and making the brightness emitted by the light-transmitting area more uniform.

[0015] In one possible implementation, the light guide includes a body and a light-emitting portion. The size of the body gradually increases in the direction from the light-emitting element to the end cap. The light-emitting portion is connected to the end of the body away from the light-emitting element and is arranged around the body. In the direction from the light-emitting element to the end cap, the projection of the light-emitting portion and the projection of the light-transmitting area at least partially overlap.

[0016] According to the aforementioned technical means, the light-emitting part is arranged around the main body, pointing towards the end cover along the direction of the light-emitting element. The projection of the light-emitting part and the projection of the light-transmitting area at least partially overlap. The light output from the light-emitting part can directly act on the light-transmitting area, reducing the waste of light in non-light-transmitting areas and ensuring the effective utilization rate of light. At the same time, since the main body has already guided the light to the vicinity of the end cover and achieved a certain degree of diffusion, the light-emitting part, as the terminal of light output, can evenly project the light transmitted and diffused by the main body onto the light-transmitting area. Through the arrangement of the light-emitting part around the main body, the light distribution at various positions in the light-transmitting area can be more balanced, avoiding situations of insufficient or excessive brightness in certain areas.

[0017] In one possible implementation, one of the light guide and the end cap is provided with a positioning hole, and the other of the light guide and the end cap is provided with a positioning post, which passes through the positioning hole.

[0018] And / or, the light guide is provided with a first connection hole, the switch housing is provided with a second connection hole, and the switch button further includes a fastener, which passes through the first connection hole and the second connection hole.

[0019] Based on the aforementioned technical means, the positioning of the light guide and the end cap is achieved through the cooperation of positioning holes and positioning posts, avoiding light leakage or uneven light transmission caused by misalignment and reducing relative shaking between the light guide and the end cap. After the fastener passes through the first connecting hole and the second connecting hole, the light guide is firmly fixed in the preset position of the switch housing, preventing the light guide from shifting due to frequent pressing of the switch button, vibration, or environmental disturbances.

[0020] In one possible implementation, the switch button further includes a connecting structure through which the light-emitting element and the end cap are connected.

[0021] Based on the aforementioned technical means, after determining the positions of the light guide and the end cap through positioning holes and positioning posts, the connection structure can mechanically fix their relative positions, avoiding displacement caused by external forces such as switch pressing or vibration. Compared to unfixed free bonding, this connection ensures that the light-emitting part of the light guide is always aligned with the light-transmitting area of ​​the end cap, reducing light leakage or local dark areas, and guaranteeing the stability of optical performance from a structural perspective.

[0022] In one possible implementation, the connection structure includes a hook and a snap-fit ​​hole, one of which is located in the light guide, and the other of which is located in the end cap, with the hook snapping into the snap-fit ​​hole.

[0023] And / or, the connection structure includes an adhesive element bonded between the light guide and the end cap.

[0024] Based on the aforementioned technical means, the hook slides into the locking hole. Once in place, the hook engages with the edge of the locking hole, generating a continuous locking force. This effectively resists the axial force when the switch button is pressed and vibrations during daily use, preventing the light guide from separating from the end cap and reducing the risk of loosening due to long-term use. There may be tiny gaps at the contact surfaces between the light guide and the end cap; the adhesive, after curing, fills these gaps, forming a continuous sealing layer that effectively prevents dust, moisture, and other impurities from entering the interior.

[0025] Secondly, this application also provides a vehicle door that includes the switch button mentioned in any of the embodiments of the first aspect above.

[0026] Since the vehicle provided in this application includes a switch button as described in any of the above embodiments, both can solve the same technical problem and achieve the same effect.

[0027] Thirdly, this application also provides a vehicle that includes the door mentioned in any of the embodiments of the second aspect above.

[0028] Since the vehicle provided in this application includes a door as described in any of the above embodiments, both can solve the same technical problem and achieve the same effect. Attached Figure Description

[0029] Figure 1 A schematic diagram of the structure of a vehicle provided in an embodiment of this application;

[0030] Figure 2 This is a schematic diagram of the structure of a switch button provided in an embodiment of this application;

[0031] Figure 3 A cross-sectional view of a switch button provided in an embodiment of this application;

[0032] Figure 4 for Figure 2 The diagram shows the structure of the end cap of the switch button.

[0033] Figure 5 for Figure 2 A schematic diagram of the bottom structure of the light guide in the switch button shown;

[0034] Figure 6 for Figure 2A schematic diagram of the front structure of the light guide in the switch button shown.

[0035] Figure label:

[0036] 10. Vehicle body; 11. Vehicle door; 100. Switch housing; 101. Switch button housing; 102. Main switch housing; 200. End cap; 201. Central area; 202. Light-transmitting area; 203. Positioning post; 300. Light-emitting element; 301. Conductive rubber; 400. Light guide; 401. Groove; 402. Body; 403. Light-emitting part; 404. Positioning hole; 405. First connecting hole; 406. Glue groove; 601. Hook; 602. Snap-fit ​​hole; 700. Connector; 800. Circuit board. Detailed Implementation

[0037] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0038] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0039] This application provides a vehicle. The specific type of vehicle is not specifically limited in this application; for example, the vehicle provided in this application can be an electric vehicle, a hybrid vehicle, a gasoline vehicle, or a solar-powered vehicle. It is understood that an electric vehicle is powered by an electric motor and also has a battery connected to the motor to supply power; a hybrid vehicle may include a gasoline engine and an electric motor, which can simultaneously or alternately power the vehicle; a gasoline vehicle includes a gasoline engine and a transmission, with the gasoline engine providing power to the vehicle through the transmission; and a solar-powered vehicle utilizes solar energy to generate electricity, which is then used to power the vehicle via an electric motor.

[0040] The vehicle provided in this application embodiment can also be of different types. For example, the vehicle provided in this application embodiment can be a sedan, a sport utility vehicle (SUV), or a multi-purpose vehicle (MPV), etc. The vehicle can also be a gasoline vehicle, a pure electric vehicle, a hybrid vehicle, etc.

[0041] In some embodiments, see Figure 1 The vehicle in this application includes a body 10, a door 11, and a switch button. The body 10 is provided with a door 11, which is used to allow the driver and passengers to enter and exit the vehicle. A switch button is provided on the side of the door 11 facing the interior space of the vehicle, which is used to raise or lower the window or lock or unlock the door.

[0042] In other embodiments, the switch button may also be located in other locations on the vehicle, such as the dashboard, roof, etc. This application illustrates the example of a switch button located on a vehicle door.

[0043] In some embodiments, see Figure 2 and combined Figure 3 and Figure 5 The switch button includes a switch housing 100, an end cap 200, a light-emitting element 300, and a light guide 400. The switch housing 100 has a receiving cavity and an opening communicating with the receiving cavity. The end cap 200 covers the opening. The end cap 200 includes a central area 201 and a light-transmitting area 202 surrounding the central area 201. The light-emitting element 300 is disposed in the receiving cavity. The light guide 400 is disposed in the receiving cavity and is located between the light-emitting element 300 and the end cap 200. The light guide 400 is used to conduct the light emitted by the light-emitting element 300 to the light-transmitting area 202. Along the direction from the light-emitting element 300 to the end cap 200, the size of the light guide 400 gradually increases in a first direction, which is perpendicular to the arrangement direction of the light-emitting element 300 and the end cap 200.

[0044] Based on this, the light-transmitting area 202 of the end cover 200 is arranged around the central area 201. The light guide 400 is located between the light-emitting element 300 and the end cover 200. The size of the light guide 400 gradually increases in the first direction, allowing the light transmitted by the light guide 400 to naturally diffuse circumferentially during its transmission to the end cover 200, precisely corresponding to the surrounding range of the light-transmitting area 202. This ensures that the light emitted by the light-emitting element 300 is transmitted to the light-transmitting area 202 of the end cover 200, thereby improving the brightness of the end cover 200 and facilitating identification by drivers and passengers. Furthermore, compared to the regular square structure of the light guide 400, the gradually increasing size of the light guide 400 in the first direction also reduces the volume of the light guide 400, thereby reducing the space occupied by the light guide 400 within the switch housing 100. This, in turn, allows for a smaller switch button, reducing the space occupied by the switch button and facilitating its placement in the vehicle.

[0045] For example, the end cap 200 can be made of an alloy material produced by blending polycarbonate and acrylonitrile-butadiene-styrene copolymer. The end cap 200 can withstand the impact of daily pressing of the switch button, resist temperature changes in the usage environment, and can be precisely molded into a complex structure including a central area 201 and a light-transmitting area 202 through injection molding, while avoiding the defects of a single material. The surface of the end cap 200 can be electroplated to improve its appearance, increase surface hardness and wear resistance, and enhance corrosion resistance.

[0046] For example, the light-emitting element 300 can be a surface-mount LED, an incandescent lamp, etc. The light guide 400 can be made of polycarbonate material with a light transmittance of approximately 89%.

[0047] In some embodiments, a connector 700 may be provided at one end of the switch housing 100 away from the end cover 200. One end of the connector 700 is connected to the door wiring harness, and the other end of the connector 700 is connected to the circuit board 800, so that the power and signal of the door wiring harness can be transmitted to the circuit board 800 through the connector 700, providing energy and control commands for the entire switch button.

[0048] The upper end of the light-emitting element 300 can be soldered to the circuit board 800. The light-emitting element 300 can be provided with conductive rubber 301 around its periphery. The conductive rubber 301 contains conductive particles. One end of the conductive rubber 301 contacts the pin of the light-emitting element 300, and the other end of the conductive rubber 301 is connected to the extension line of the circuit board 800 to form an auxiliary conductive path.

[0049] In some other embodiments, the switch housing 100 may include a switch button housing 101 and a main switch housing 102. The main switch housing 102 is located at the end of the switch button housing 101 facing the connector 700. The switch button housing 101 is located between the main switch housing 102 and the end cap 200. The main switch housing 102 contains core components such as circuit contacts. The switch button housing 101 is the part that the user directly contacts, and the light guide 400 is located inside the switch button housing 101. The opening of the switch housing 100 is located in the switch button housing 101.

[0050] Based on this, the bottom of the switch button housing 101 (i.e., the side surface of the switch button housing 101 facing away from the connector 700) can be tilted to better fit ergonomics and improve the pressing feel for people inside the vehicle.

[0051] In some embodiments, see Figure 2 and combined Figure 3 and Figure 5 The surface of the light guide 400 facing the light-emitting element 300 is a concave arc surface.

[0052] Based on this, when the light emitted by the light-emitting element 300 diffuses in all directions, different areas of the concave arc surface can correspond to incident light at different angles, capturing more oblique and scattered light that might otherwise escape to the outside of the light guide 400 into the light guide 400, greatly improving the initial utilization rate of light. The concave arc surface allows the light from the light-emitting element 300 to produce differentiated refraction angles when entering the light guide 400. During the multiple reflections of light on the arc surface and the inner wall of the light guide 400, the concentrated strong light of the light-emitting element 300 is dispersed, and the weak light area is supplemented, ultimately significantly improving the brightness uniformity of the light entering the light guide 400 and achieving uniform light output.

[0053] For example, the concave arc surface can be elliptical. The asymmetric curvature of the elliptical arc surface can expand the range of light capture at different angles, achieve all-round coverage of asymmetric light sources, and reduce light escape.

[0054] In some other embodiments, the surface of the light guide 400 facing the light-emitting element 300 may also be planar.

[0055] In some embodiments, see Figure 2 and combined Figure 3 and Figure 5 The light guide 400 is provided with a groove 401, which is recessed from the surface of the light guide 400 facing the end cover 200 and away from the end cover 200.

[0056] Based on this, when light propagates within the light guide 400, the edge and inner wall of the groove 401 can form a specific reflection or refraction interface. By designing the depth, width, and cross-sectional shape of the groove, the propagation path of the light can be specifically altered, achieving precise control over the light and improving the uniformity and directionality of the light's brightness. Secondly, the groove 401 can reduce unnecessary material usage, achieving a lightweight light guide 400 and reducing installation load and transportation costs.

[0057] For example, the position of the groove 401 can be set within the central area 201.

[0058] In some embodiments, see Figure 2 and combined Figure 3 and Figure 5 Along the direction from the light-emitting element 300 to the end cover 200, the size of the groove 401 gradually increases in the first direction.

[0059] Based on this, the initial size of the groove 401 near the light-emitting element 300 is small, which can accurately collect the strong light in the core area of ​​the light-emitting element 300; as it extends towards the end cover 200, the size of the groove 401 gradually increases, which can effectively accept the weak light or oblique light emitted from the edge of the light-emitting element 300, and prevent the light from escaping in the early stage of propagation due to the insufficient size of the groove 401, greatly improving the retention rate of light after entering the groove 401, and making the brightness emitted by the light-transmitting area more uniform.

[0060] For example, the size of the end of the groove 401 facing the light-emitting element 300 can be the same as the size of the light-emitting element 300, and the size of the end of the groove 401 facing the end cap 200 can be the same as the size of the central area 201.

[0061] In some embodiments, see Figure 2 and combined Figure 3 and Figure 5 The light guide 400 includes a body 402 and a light emitting part 403. The size of the body 402 gradually increases in the direction from the light-emitting element 300 to the end cap 200. The light emitting part 403 is connected to the end of the body 402 away from the light-emitting element 300. The light emitting part 403 is arranged around the body 402. In the direction from the light-emitting element 300 to the end cap 200, the projection of the light emitting part 403 and the projection of the light-transmitting area 202 at least partially overlap.

[0062] Based on this, the light-emitting part 403 is arranged around the body 402, pointing from the light-emitting element 300 towards the end cap 200. The projection of the light-emitting part 403 and the projection of the light-transmitting area 202 at least partially overlap. The light emitted by the light-emitting part 403 can directly act on the light-transmitting area 202, reducing light waste at other positions and ensuring effective light utilization. At the same time, since the body 402 has guided the light to the vicinity of the end cap 200 and achieved a certain degree of diffusion, the light-emitting part 403, as the terminal of light output, can evenly project the light transmitted and diffused by the body 402 onto the light-transmitting area 202. Through the arrangement of the light-emitting part 403 around the body 402, the light distribution at each position of the light-transmitting area 202 can be more balanced, avoiding local insufficient brightness or excessive brightness.

[0063] In some embodiments, see Figure 3 and combined Figure 4 and Figure 5 One of the light guide 400 and the end cap 200 is provided with a positioning hole 404, and the other of the light guide 400 and the end cap 200 is provided with a positioning post 203, which passes through the positioning hole 404.

[0064] Based on this, the positioning of the light guide 400 and the end cap 200 is achieved through the cooperation of the positioning hole 404 and the positioning post 203, so as to avoid light leakage or uneven light transmission caused by misalignment and reduce the relative shaking between the light guide 400 and the end cap 200.

[0065] For example, there can be multiple positioning holes 404, such as two, three, four, etc. Multiple positioning holes 404 are disposed at opposite ends of the surface of the light guide 400 facing the end cap 200. There can be multiple positioning posts 203, such as two, three, four, etc. Multiple positioning posts 203 are disposed at positions on the end cap 200 that match the light guide 400, so that the positioning posts 203 pass through the positioning holes 404.

[0066] In some embodiments, see Figure 2 and combined Figure 5 and Figure 6 The light guide 400 is provided with a first connection hole 405, the switch housing 100 is provided with a second connection hole, and the switch button also includes a fastener, which passes through the first connection hole 405 and the second connection hole.

[0067] Based on this, after the fastener passes through the first connecting hole 405 and the second connecting hole, it firmly fixes the light guide 400 in the preset position of the switch housing 100, so as to prevent the light guide 400 from shifting due to frequent pressing of the switch button, vibration or environmental bumps.

[0068] For example, the fastener can be a bolt or screw to achieve a threaded connection between the light guide 400 and the switch housing 100.

[0069] In some embodiments, see Figure 2 and combined Figure 3 and Figure 5 The switch button also includes a connecting structure, through which the light guide 400 and the end cap 200 are connected.

[0070] Based on this, after the positions of the light guide 400 and the end cap 200 are determined by the positioning hole 404 and the positioning post 203, the connecting structure can fix the relative positions of the two through mechanical constraints, avoiding displacement caused by external forces such as switch pressing and vibration. Compared with unfixed free bonding, the connecting structure can ensure that the light emitting part 403 of the light guide 400 is always aligned with the light-transmitting area 202 of the end cap 200, reducing light leakage or local dark areas, and ensuring the stability of optical performance from a structural level.

[0071] For example, the light guide 400 and the end cap 200 can be connected by snap-fit ​​or by magnetic attraction.

[0072] In some embodiments, see Figure 2 and combined Figure 4 and Figure 5 The connection structure includes a hook 601 and a snap-fit ​​hole 602. One of the hook 601 and the snap-fit ​​hole 602 is located in the light guide body 400, and the other of the hook 601 and the snap-fit ​​hole 602 is located in the end cap 200. The hook 601 is snapped into the snap-fit ​​hole 602.

[0073] Based on this, the hook 601 slides into the locking hole 602. After it is in place, the hook 601 and the edge of the locking hole 602 engage, generating a continuous locking force. This can effectively resist the axial force when the switch button is pressed and the vibration during daily use, preventing the light guide 400 from separating from the end cover 200 and reducing the risk of loosening due to long-term use.

[0074] In some embodiments, see Figure 2 and combined Figure 3 and Figure 5 The connection structure includes an adhesive component, which is bonded between the light guide 400 and the end cap 200.

[0075] Based on this, there may be tiny gaps at the contact surfaces between the light guide 400 and the end cap 200. After the adhesive has cured, it can fill these gaps to form a continuous sealing layer, effectively preventing dust, moisture and other impurities from entering the interior.

[0076] For example, two adhesive grooves 406 can be provided at both ends of the positioning hole 404, and the adhesive is filled in the adhesive grooves 406 to achieve tight fixation between the light guide 400 and the end cap 200.

[0077] In some examples, the adhesive can be double-sided tape, sealant, etc.

[0078] In some other embodiments, please refer to Figure 2 and combined Figure 4 and Figure 5 The connection structure includes a hook 601 and a snap-fit ​​hole 602. One of the hook 601 and the snap-fit ​​hole 602 is located on the light guide 400, and the other of the hook 601 and the snap-fit ​​hole 602 is located on the end cap 200. The hook 601 is snapped into the snap-fit ​​hole 602. The connection structure also includes an adhesive 603, which is bonded between the light guide 400 and the end cap 200.

[0079] Based on this, this embodiment can achieve the effects of the two embodiments described above.

[0080] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A switch button, characterized in that, include: A switch housing (100) is provided with a receiving cavity and an opening communicating with the receiving cavity; An end cap (200) covers the opening; the end cap (200) includes a central region (201) and a light-transmitting region (202) surrounding the central region (201); A light-emitting element (300) is disposed within the receiving cavity; A light guide (400) is disposed in the receiving cavity. The light guide (400) is located between the light-emitting element (300) and the end cap (200). The light guide (400) is used to conduct the light emitted by the light-emitting element (300) to the light-transmitting area (202). Along the direction from the light-emitting element (300) to the end cap (200), the size of the light guide (400) gradually increases in a first direction, which is perpendicular to the arrangement direction of the light-emitting element (300) and the end cap (200).

2. The switch button according to claim 1, characterized in that, The surface of the light guide (400) facing the light-emitting element (300) is a concave arc surface.

3. The switch button according to claim 1, characterized in that, The light guide (400) is provided with a groove (401), which is recessed from the surface of the light guide (200) facing the end cap (200) and away from the end cap (200).

4. The switch button according to claim 3, characterized in that, Along the direction from the light-emitting element (300) to the end cap (200), the size of the groove (401) gradually increases in the first direction.

5. The switch button according to claim 1, characterized in that, The light guide (400) includes a body (402) and a light emitting part (403). Along the direction from the light-emitting element (300) to the end cap (200), the size of the body (402) gradually increases in the first direction. The light-emitting part (403) is connected to the end of the body (402) away from the light-emitting element (300). The light-emitting part (403) is arranged around the body (402) and points in the direction from the light-emitting element (300) toward the end cap (200). The projection of the light-emitting part (403) and the projection of the light-transmitting area (202) at least partially overlap.

6. The switch button according to claim 1, characterized in that, One of the light guide (400) and the end cap (200) is provided with a positioning hole (404), and the other of the light guide (400) and the end cap (200) is provided with a positioning post (203), which passes through the positioning hole (404); And / or, the light guide (400) is provided with a first connection hole (405), the switch housing (100) is provided with a second connection hole, and the switch button further includes a fastener, the fastener passing through the first connection hole (405) and the second connection hole.

7. The switch button according to claim 6, characterized in that, The switch button also includes a connecting structure, through which the light guide (400) and the end cap (200) are connected.

8. The switch button according to claim 7, characterized in that, The connection structure includes a hook (601) and a snap-fit ​​hole (602), one of the hook (601) and the snap-fit ​​hole (602) is provided in the light guide (400), and the other of the hook (601) and the snap-fit ​​hole (602) is provided in the end cap (200), and the hook (601) snaps into the snap-fit ​​hole (602); And / or, the connection structure includes an adhesive element bonded between the light guide (400) and the end cap (200).

9. A vehicle door, characterized in that, include: The switch button according to any one of claims 1-8.

10. A vehicle, characterized in that, include: The door (11) as described in claim 9.

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