Modular cockpit analog light switch with optically uniform display
Patent Information
- Application Number
- CN202522594419.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-08
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-12-08
AI Technical Summary
[0004]为了克服现有的不足，本申请实施例提供一种具备光学均匀显示的模块化驾驶舱模拟方灯开关，其能够解决上述光学显示均匀性差，LED 直射光形成眩光，长时间观察易引发视疲劳的问题
通过光线依次通过磨砂片（初步扩散）、字符片（透光显示文字）、散光片（二次均匀化）和灯罩（控制出光方向并防止漏光），层光学件的协同作用，使光线柔和、均匀，字符清晰可见，无眩光和暗区，解决了亮斑和光泄露，不易引发视觉疲劳问题，在驾驶舱低照度环境下仍能保持良好的识别性。
Smart Images
Figure CN224922622U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of light switches, and more specifically, to a modular cockpit simulation square light switch with uniform optical display. Background Technology
[0002] In training equipment such as flight simulators and car driving simulators, the cockpit simulated square light switch is a core component of human-computer interaction. Its optical display clarity and mechanical operation reliability directly affect the realism of training and operational safety. These switches must meet two core requirements: First, the optical display must be uniform and glare-free, ensuring that operators can quickly identify the switch status (such as "on / off" or "fault / normal") under different lighting conditions, meeting the requirement of "display brightness deviation ≤10%" in the aviation industry standard SAEAS8034. Second, the mechanical structure must have precise self-resetting capability to adapt to thousands of high-frequency operations per day, while the modular design must be compatible with the circuit systems of different simulators to reduce replacement and maintenance costs.
[0003] Chinese utility model patent CN202222345678.9 discloses a cockpit simulation light switch, which uses a single LED light source mounted on a rigid PCB board and a single-layer acrylic lampshade for display. A common spring is used as the reset component, and the circuit connection is achieved through direct soldering. However, this structure has significant limitations when applied to high-precision simulation scenarios. The optical display uniformity is poor, the single LED light source exhibits point light characteristics, and the light is diffused only through a single-layer lampshade, resulting in noticeable bright spots and dark areas on the switch surface (measured brightness deviation reaches 30%-40%). For example, in the external lighting control panel of the C919 flight simulator, such switches are prone to causing operator misjudgment due to uneven display. Furthermore, the lack of a frosted plate and a central partition for light uniformity design results in glare from the direct LED light, which can easily cause eye fatigue during prolonged observation. Utility Model Content
[0004] To overcome the shortcomings of the existing system, this application provides a modular cockpit simulation square light switch with uniform optical display, which can solve the problems of poor uniformity of optical display, glare from direct LED light, and eye fatigue caused by prolonged observation.
[0005] The technical solution adopted by the embodiments of this application to solve its technical problem is: a modular cockpit simulation square light switch with uniform optical display, including a housing.
[0006] A flexible circuit board is installed inside the housing, and an LED light source is installed on the flexible circuit board. A mechanical reset component is installed below the flexible circuit board in the housing, and the mechanical reset component is in contact with the flexible circuit board. A lampshade, a frosted glass, a diffuser, and a character plate are arranged above the LED light source in the housing. An output circuit board is installed at the bottom of the housing, and a header pin is installed at the bottom inside the housing. The flexible circuit board is electrically connected to the output circuit board through the header pin.
[0007] In one specific implementation, the mechanical reset component includes a button part and a reset part. The button part includes a button upper cover, a button lower cover, a button base, and a stainless steel button shaft. The button base is disposed at the top inside the housing, the button upper cover is disposed inside the button base, the frosted sheet and the character sheet are located inside the button upper cover, the button lower cover is in contact with the lower surface of the flexible circuit board, the reset part is disposed at the bottom inside the housing, and the two ends of the stainless steel button shaft are in contact with the button base and the reset part, respectively.
[0008] In one specific implementation, the reset unit includes a self-reset button switch, which is installed at the bottom of the housing. A contact flashlight switch is installed on the top of the self-reset button switch, and the flashlight switch is in contact with the stainless steel button shaft. A first reset spring is sleeved on the outside of the flashlight switch, and the first reset spring is in contact with the stainless steel button shaft.
[0009] In one specific implementation, a second reset spring is sleeved on the outside of the self-resetting button switch, and the second reset spring is in contact with the flashlight switch.
[0010] In one specific implementation, a base is installed inside the housing, and the self-resetting button switch, the flashlight switch, and the stainless steel button shaft are slidably disposed inside the base.
[0011] In one specific implementation, a locking screw is provided between the base and the housing, and a locking nut is provided on the locking screw.
[0012] In one specific implementation, the output circuit board and the bottom of the housing are both provided with self-tapping screws.
[0013] In one specific implementation, a right-angle socket is installed at the bottom of the housing.
[0014] The advantages of the embodiments of this application are: By passing light sequentially through a frosted sheet (for initial diffusion), a character sheet (for transmitting light and displaying text), a diffuser sheet (for secondary homogenization), and a lampshade (for controlling the direction of light emission and preventing light leakage), the synergistic effect of the optical components makes the light soft and uniform, the characters clearly visible, and free from glare and dark areas. This solves the problems of bright spots and light leakage, reduces the likelihood of visual fatigue, and maintains good legibility even in low-light environments in the cockpit. Attached Figure Description
[0015] Figure 1 A schematic diagram of a modular cockpit simulation square light switch structure with uniform optical display provided for an embodiment of this application; Figure 2 A top view schematic diagram of a modular cockpit simulation square light switch with uniform optical display provided for an embodiment of this application; Figure 3 A schematic diagram of the AA cross-sectional structure provided for an embodiment of this application; Figure 4 This is a schematic diagram of the BB cross-sectional structure provided for an embodiment of this application.
[0016] In the diagram: 1-Button top cover; 2-Frosted sheet; 3-Character sheet; 4-Lower pad frame; 5-Diffuser sheet; 6-Middle partition; 7-Lampshade; 8-Button bottom cover; 9-Button base; 10-Outer shell; 11-Flexible circuit board; 12-Pin header; 13-Base; 14-Button shaft; 15-Upper pad frame; 16-Output circuit board; 17-Locking screw; 18-Locking nut; 19-Self-resetting button switch; 20-Flashlight switch; 21-Right angle socket; 22-Self-tapping screw; 23-First reset spring; 24-Second reset spring. Detailed Implementation
[0017] The technical solution in this application embodiment is to solve the problems of poor uniformity in optical displays, glare from direct LED light, and eye strain caused by prolonged viewing. The overall approach is as follows: Please see Figures 1-4 A modular cockpit analog square light switch with uniform optical display, including a housing 10.
[0018] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4The housing 10 houses a flexible circuit board 11. Specifically, the housing 10 is made of aluminum alloy, while key internal components utilize PC engineering plastic and stainless steel shafts, significantly improving reliability and lifespan compared to traditional plastic structures. An LED light source is mounted on the flexible circuit board 11. A mechanical reset component is mounted below the flexible circuit board 11 on the housing 10, contacting the flexible circuit board 11. Above the LED light source on the housing 10 are a lampshade 7, a frosted glass 2, a diffuser 5, and a character plate 3. Specifically, a partition 6 is positioned in the middle of the diffuser 5. An output circuit board 16 is mounted at the bottom of the housing 10, and a pin header 12 is installed at the bottom of the housing 10. The flexible circuit board 11 is electrically connected to the output circuit board 16 via the pin header 12. Specifically, the output is achieved through the flexible circuit board 11 and the standard pin header 12, ensuring plug-and-play compatibility with existing cockpit simulation equipment. The mechanical reset component illuminates the LED light source mounted on the flexible circuit board 11 and automatically returns to its initial position after the user releases the light, thus resetting the LED light source. When the LED light source is illuminated, the light passes sequentially through the frosted sheet 2 (for initial diffusion), the character sheet 3 (for transmitting light to display text), the diffuser sheet 5 (for secondary homogenization), and the lampshade 7 (for controlling the direction of light emission and preventing light leakage). The synergistic effect of the optical components makes the light soft and uniform, the characters clearly visible, and there are no glare or dark areas. This solves the problems of bright spots and light leakage, and is less likely to cause visual fatigue. It can still maintain good visibility in the low-light environment of the cockpit.
[0019] The mechanical reset component includes a button section and a reset section. The button section includes a button upper cover 1, a button lower cover 8, a button base 9, and a stainless steel button shaft 14. The button base 9 is located at the top inside the housing 10, and the button upper cover 1 is located inside the button base 9. The frosted sheet 2 and the character sheet 3 are located inside the button upper cover 1. The button lower cover 8 contacts the lower surface of the flexible circuit board 11. The reset section is located at the bottom inside the housing 10. Both ends of the stainless steel button shaft 14 contact the button base 9 and the reset section, respectively. Specifically, a lower pad frame 4 is fixedly connected to the outside of the housing 10, and an upper pad frame 15 is located above the lower pad frame 4. The button base 9 is supported on the upper pad frame 15. The reset section includes a self-reset button switch 19, which is installed at the bottom inside the housing 10. A contact flashlight switch 20 is installed on the top of the self-reset button switch 19. The flashlight switch 20 contacts the stainless steel button shaft 14, and a first reset spring 23 is sleeved on the outside of the flashlight switch 20, and the first reset spring 23 contacts the stainless steel button shaft 14. A second reset spring 24 is sleeved on the outside of the self-reset button switch 19, and the second reset spring 24 contacts the flashlight switch 20. A base 13 is installed inside the housing 10, and the self-reset button switch 19, flashlight switch 20, and stainless steel button shaft 14 are slidably disposed inside the base 13. A locking screw 17 is provided between the base 13 and the housing 10, and a locking nut 18 is provided on the locking screw 17. A self-tapping screw 22 is provided on both the output circuit board 16 and the bottom of the housing 10. A right-angle socket 21 is installed on the bottom of the housing 10. When the user presses the stainless steel button shaft 14, the first reset spring 23 and the second reset spring 24 are compressed, causing the self-reset button switch 19 to contact the flashlight switch 20, and the flashlight switch 20 controls the LED power to illuminate. After releasing the button, the first reset spring 23 and the second reset spring 24 are released and push the stainless steel button shaft 14 to automatically return to its initial position, achieving self-reset. The stainless steel button shaft 14 ensures coaxiality and smooth operation, avoiding jamming or sticking. The self-resetting structure ensures that the switch operation is consistent with the real machine, providing trainees with the same tactile feedback as an aircraft cockpit, thus enhancing training effectiveness. Each functional component (optical assembly, circuit board, mechanical parts) is independently designed for easy replacement and maintenance, minimizing downtime.
[0020] When this application is used: The mechanical reset component illuminates the LED light source mounted on the flexible circuit board 11 and automatically returns to its initial position after the user releases the light, thus resetting the LED light source. When the LED light source is illuminated, the light passes sequentially through the frosted sheet 2 (for initial diffusion), the character sheet 3 (for transmitting light and displaying text), the diffuser 5 (for secondary homogenization), and the lampshade 7 (for controlling the direction of light emission and preventing light leakage). The synergistic effect of the optical components makes the light soft and uniform, the characters clearly visible, and there are no glare or dark areas. This solves the problems of bright spots and light leakage, reduces visual fatigue, and maintains good visibility even in low-light environments in the cockpit.
[0021] In summary, this application achieves soft, uniform light and clearly visible characters by having light pass sequentially through the frosted sheet 2 (for initial diffusion), the character sheet 3 (for transmitting light and displaying text), the diffuser 5 (for secondary homogenization), and the lampshade 7 (for controlling the direction of light emission and preventing light leakage). Through the synergistic effect of these optical components, the light is soft and uniform, with no glare or dark areas. This solves the problems of bright spots and light leakage, reduces visual fatigue, and maintains good legibility even in low-light environments in the cockpit.
[0022] It should be noted that the specific model and specifications of the flexible circuit board 11, pin header 12, and output circuit board 16 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.
[0023] The power supply and operating principle of the flexible circuit board 11, pin header 12, output circuit board 16, self-resetting button switch 19, flashlight switch 20 and right-angle socket 21 are clear to those skilled in the art and will not be described in detail here.
[0024] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.
Claims
1. A modular cockpit simulation square light switch with uniform optical display, characterized in that, include The outer casing (10) has a flexible circuit board (11) installed inside it. An LED light source is installed on the flexible circuit board (11). A mechanical reset component is installed below the flexible circuit board (11) in the outer casing (10). The mechanical reset component is in contact with the flexible circuit board (11). A lampshade (7), a frosted sheet (2), a diffuser (5), and a character sheet (3) are provided above the LED light source in the outer casing (10). An output circuit board (16) is installed at the bottom of the outer casing (10). A pin header (12) is installed at the bottom inside the outer casing (10). The flexible circuit board (11) is electrically connected to the output circuit board (16) through the pin header (12).
2. The modular cockpit simulation square light switch with uniform optical display as described in claim 1, characterized in that, The mechanical reset component includes a button part and a reset part. The button part includes a button upper cover (1), a button lower cover (8), a button base (9), and a stainless steel button shaft (14). The button base (9) is located at the top inside the outer shell (10). The button upper cover (1) is located inside the button base (9). The frosted sheet (2) and the character sheet (3) are located inside the button upper cover (1). The button lower cover (8) is in contact with the lower surface of the flexible circuit board (11). The reset part is located at the bottom inside the outer shell (10). The two ends of the stainless steel button shaft (14) are in contact with the button base (9) and the reset part, respectively.
3. The modular cockpit simulation square light switch with uniform optical display as described in claim 2, characterized in that, The reset part includes a self-reset button switch (19), which is installed at the bottom of the housing (10). A contact flashlight switch (20) is installed on the top of the self-reset button switch (19). The flashlight switch (20) is in contact with the stainless steel button shaft (14). A first reset spring (23) is sleeved on the outside of the flashlight switch (20), and the first reset spring (23) is in contact with the stainless steel button shaft (14).
4. The modular cockpit simulation square light switch with uniform optical display as described in claim 3, characterized in that, A second reset spring (24) is sleeved on the outside of the self-resetting button switch (19), and the second reset spring (24) is in contact with the flashlight switch (20).
5. The modular cockpit simulation square light switch with uniform optical display as described in claim 4, characterized in that, The housing (10) has a base (13) installed inside, and the self-resetting button switch (19), the flashlight switch (20) and the stainless steel button shaft (14) are slidably disposed inside the base (13).
6. The modular cockpit simulation square light switch with uniform optical display as described in claim 5, characterized in that, A locking screw (17) is provided between the base (13) and the outer shell (10), and a locking nut (18) is provided on the locking screw (17).
7. The modular cockpit simulation square light switch with uniform optical display as described in claim 1, characterized in that, The bottom of the output circuit board (16) and the housing (10) are both provided with self-tapping screws (22).
8. The modular cockpit simulation square light switch with uniform optical display as described in claim 1, characterized in that, A right-angle socket (21) is installed at the bottom of the outer casing (10).