Automobile indoor lamp structure with stepless adjustable color temperature and brightness
By introducing a touch-sensitive strip and processing module for brightness and color temperature into the automotive interior lighting structure, stepless adjustment of brightness and color temperature is achieved, solving the problem that traditional in-vehicle lighting systems cannot be adjusted, improving comfort and safety, and also achieving energy-saving effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-03-20
AI Technical Summary
Existing in-vehicle lighting systems cannot adjust brightness and color temperature, resulting in insufficient comfort and functionality.
The automotive interior lighting system features stepless adjustment of color temperature and brightness. Lighting is adjusted via a touch-sensitive control bar and processing module for brightness and color temperature, and the brightness and color temperature of the LED light source are controlled by a capacitive sensing diaphragm and circuit board.
It enables personalized adjustment of brightness and color temperature, improving the comfort and safety of drivers and passengers, and is also energy-saving and environmentally friendly.
Smart Images
Figure CN224021902U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile parts, specifically relates to a color temperature and brightness stepless adjustable automobile indoor lamp structure. BACKGROUND
[0002] The popularization rate of electric vehicles is higher and higher, and in addition to the functional experience for drivers and passengers, the comfort experience is better and better, which is not much on the traditional fuel vehicles. For example, the interior lighting system, traditionally, the lighting lamp can be lit, and in the evening or dim environment, the driver and passenger can see the objects in the cabin clearly, and can read enough. It only has a fixed brightness, some people may feel comfortable, some people feel too bright and dazzling, and some people feel too dark and unclear. But the car is produced, only one brightness, no choice. For example, the cold white color lighting is brighter, which is beneficial to finding things in the car. And the warm white color lighting is more comfortable and more beneficial to reading in the car. However, the color temperature of the traditional lighting system is fixed, and the color temperature cannot be selected or adjusted according to the use scene in the car.
[0003] Therefore, the existing interior lighting system has the technical problem that the brightness and color temperature cannot be adjusted. CONTENT OF THE UTILITY MODEL
[0004] In view of the above technical problems existing in the existing interior lighting system, the purpose of the utility model is to provide a color temperature and brightness stepless adjustable automobile indoor lamp structure, which adopts an automobile indoor lamp with stepless adjustable color temperature and brightness to replace the traditional automobile indoor lamp with fixed color and brightness, and has the advantages of stepless adjustable brightness and stepless adjustable color temperature.
[0005] In order to achieve the above purpose, the color temperature and brightness stepless adjustable automobile indoor lamp structure provided by the utility model comprises a shell, a brightness and color temperature touch function bar, a light emitting lamp group, a processing module, the light emitting lamp group is arranged in the shell and is electrically connected with the processing module, the brightness and color temperature touch function bar is arranged on the inner surface of the shell, the outer surface of the shell is provided with a touch area corresponding to the brightness and color temperature touch function bar, the brightness and color temperature touch function bar sends corresponding signals based on the change of capacitance caused by the touch or sliding touch of human hand in the touch area, and the processing module receives the signals and drives the light emitting lamp group to adjust the brightness and / or color temperature.
[0006] Further, the light emitting lamp group comprises a lens and a plurality of lighting units, the lens is arranged on the surface of the shell, and the plurality of lighting units are located in the interior of the shell, and the plurality of lighting units emit light sources respectively and emit outward from the lens.
[0007] Further, the brightness and color temperature touch function bar comprises a touch brightness adjusting bar and a sliding touch color temperature adjusting bar, the touch brightness adjusting bar and the sliding touch color temperature adjusting bar are arranged on the inner surface of the shell and are electrically connected with the processing module respectively, and the outer surface of the shell is provided with a first touch area and a second touch area corresponding to the touch brightness adjusting bar and the sliding touch color temperature adjusting bar.
[0008] Further, the first touch area is divided into a plurality of brightness touch subareas, and the plurality of brightness touch subareas correspond to a plurality of illumination units respectively.
[0009] Further, the processing module is a circuit board.
[0010] Further, the illumination unit comprises a warm color adjustable LED light source and a cold color adjustable LED light source, the warm color adjustable LED light source and the cold color adjustable LED light source form a light source group, and the warm color adjustable LED light source and the cold color adjustable LED light source are integrated on the processing module.
[0011] Further, the warm color adjustable LED light source and the cold color adjustable LED light source are provided with light guide bars respectively, and the light guide bars guide light to the lens.
[0012] Further, the shell comprises an outer cover, an inner cover, an inner shell and a bottom shell.
[0013] The inner shell is provided with a light guide bar clamping assembly, the outer cover is clamped to the inner cover, the inner cover is clamped to the inner shell, and the inner shell, the processing module and the bottom shell are fixed by screws.
[0014] Further, the first touch area and the second touch area are strip-shaped protrusions or grooves.
[0015] Further, the touch brightness adjusting bar and the sliding touch color temperature adjusting bar are capacitive sensing films.
[0016] The automobile indoor lamp structure with stepless adjustable color temperature and brightness provided by the utility model has the following beneficial effects:
[0017] (1) Meet individualized needs: have the advantages of stepless adjustable brightness and stepless adjustable color temperature, and the automobile indoor lighting environment meeting the needs of individual preferences and use scenes can be created;
[0018] (2) Adapt to various use conditions: for example, when reading for a long time, the light can be adjusted to warm white color to reduce the stimulation to eyes and be beneficial to protecting vision; for example, when children walk and play or find articles in the car, the light can be adjusted to cold white color, the light brightness is stronger, and thus falling and collision can be avoided, and safety is improved;
[0019] (3) Energy saving and environmental protection: through adjusting color temperature and brightness, the stepless dimming lamp can reduce energy consumption according to actual needs, thereby achieving the energy saving effect of the electric vehicle. BRIEF DESCRIPTION OF DRAWINGS
[0020] The utility model is further illustrated below in combination with the drawings and specific embodiments.
[0021] Figure 1 The utility model provides the explosion structure schematic diagram of color temperature and brightness stepless adjustable car indoor lamp structure;
[0022] Figure 2 The utility model provides the structure schematic diagram of light emitting lamp group in color temperature and brightness stepless adjustable car indoor lamp structure.
[0023] Figure 3 The utility model provides the structure schematic diagram of outer cover in color temperature and brightness stepless adjustable car indoor lamp structure;
[0024] Figure 4 The utility model provides the side view cross section structure schematic diagram of color temperature and brightness stepless adjustable car indoor lamp structure;
[0025] Figure 5 The utility model provides the cross section structure schematic diagram when inner shell, processing module, bottom shell cooperation connection in color temperature and brightness stepless adjustable car indoor lamp structure.
[0026] Illustration:
[0027] Shell 100, brightness and color temperature touch function bar 200, light emitting lamp group 300, processing module 400;
[0028] Outer cover 110, inner cover 120, inner shell 130, bottom shell 140, screw 150, lens 310, lighting unit 320, touch regulation brightness bar 210, sliding touch regulation color temperature bar 220, first touch area 230, second touch area 240, warm color adjustable LED light source 321, cold color adjustable LED light source 322, light guide bar 323. Specific embodiments
[0029] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific drawings.
[0030] Refer to Figure 1 It shows the structure schematic diagram of color temperature and brightness stepless adjustable car indoor lamp structure provided by the utility model.
[0031] The color temperature and brightness stepless adjustable automobile indoor lamp structure provided by the utility model is installed in the automobile interior, can emit light source and the brightness of the light source, and the color temperature can be steplessly adjusted.
[0032] According to the drawing, the color temperature and brightness stepless adjustable automobile indoor lamp structure provided by the utility model comprises four components: a shell 100, a brightness and color temperature touch function bar 200, a light emitting lamp group 300 and a processing module 400.
[0033] The shell 100 is a structural main body and is used for bearing other components.
[0034] The light emitting lamp group 300 is arranged in the shell 100 and is electrically connected with the processing module 400, the brightness and color temperature touch function bar 200 is arranged on the inner surface of the shell 100, the outer surface of the shell 100 is provided with a touch area corresponding to the brightness and color temperature touch function bar 200, the brightness and color temperature touch function bar 200 sends out a corresponding signal based on the change of the capacitance caused by the touch or sliding touch of a human hand in the touch area, and the processing module 400 receives the signal and drives the light emitting lamp group 300 to adjust the brightness and / or the color temperature.
[0035] Further, the light emitting lamp group 300 comprises a lens 310 and a plurality of illumination units 320, the lens 310 is arranged on the surface of the shell 100, and the plurality of illumination units 320 are located in the shell 100, the plurality of illumination units 320 respectively emit light sources and transmit the light sources outward from the lens 310, and are used for respectively illuminating target areas.
[0036] The lens 310 in the light emitting lamp group 300 is used for concentrating light, the light emitted by the illumination units 320 illuminates the target areas after passing through the lens, and the illumination effect can be improved.
[0037] The brightness and color temperature touch function bar 200 comprises a touch brightness adjusting bar 210 and a sliding touch color temperature adjusting bar 220, the touch brightness adjusting bar 210 and the sliding touch color temperature adjusting bar 220 are respectively arranged on the inner surface of the shell 100 and are respectively electrically connected with the processing module 400, and the outer surface of the shell 100 is provided with a first touch area 230 and a second touch area 240 corresponding to the touch brightness adjusting bar 210 and the sliding touch color temperature adjusting bar 220,
[0038] Further, the first touch area 220 is divided into a plurality of brightness touch subareas, and the plurality of brightness touch subareas respectively correspond to the plurality of illumination units 320.
[0039] In actual application, the touch-adjusted brightness bar 210 sends a signal corresponding to the change of the capacitance caused by the touch of the human hand in the first touch area 230, and the processing module 400 receives the signal to drive the lighting unit 320 corresponding to the touch-adjusted brightness bar 210 or all the lighting units 320 to open or close or adjust the brightness.
[0040] The sliding touch-adjusted color temperature bar 220 sends a signal corresponding to the change of the capacitance caused by the sliding touch of the human hand in the second touch area 240 in the positive and negative directions, respectively, and the processing module 400 forms a cold color temperature adjustment signal and a warm color temperature adjustment signal, respectively, to control the color temperature of all the lighting units 320 to adjust to cold white or warm white.
[0041] Specifically, the processing module 400 is a circuit board, and the circuit board is configured with a detection circuit and a software algorithm. The detection circuit identifies the change of the capacitance after the human hand touches the touch-adjusted brightness bar 210 and the sliding touch-adjusted color temperature bar 220, and the software algorithm then makes a corresponding determination.
[0042] In the present example, the circuit board preferably sends a pulse width modulation wave (PWM) to the lighting unit 320 to realize the adjustment function of the light, and the duty cycle of the PWM signal is changed to control the brightness and color temperature adjustment of the lighting unit 320.
[0043] Further, as Figure 2 The lighting unit 320 includes a warm color adjustable LED light source 321 and a cold color adjustable LED light source 322, and the warm color adjustable LED light source 321 and the cold color adjustable LED light source 322 form a light source group. The warm color adjustable LED light source 321 and the cold color adjustable LED light source 322 are preferably integrated on the processing module 400 by welding,
[0044] Further, in order to improve the light source effect of the warm color adjustable LED light source 321 and the cold color adjustable LED light source 322, a light guide strip 323 is arranged between the warm color adjustable LED light source 321 and the cold color adjustable LED light source 322 and the lens 310, respectively, to guide the light to the lens 310, and the two LED light sources are mixed in the target area to obtain the required brightness and color temperature.
[0045] According to the straight-line propagation characteristics of light, the warm color adjustable LED light source 321, the cold color adjustable LED light source 322, and the light guide strip 323 are in the same straight line with the target area to be illuminated.
[0046] Further, as Figure 4 The shell 100 includes an outer cover 110, an inner cover 120, an inner shell 130, and a bottom shell 140.
[0047] The inner shell 130 is provided for clamping the light bar 323, the outer cover 110 is clamped to the inner cover 120, the inner cover 120 is clamped to the inner shell 130, and the inner shell 130, the processing module 400 and the bottom shell 140 are fixed by the screw 150.
[0048] Further, since the warm color adjustable LED light source 321 and the cold color adjustable LED light source 322 are connected with the processing module 400 respectively, the processing module 400 adjusts the light intensity of the target area by adjusting the pulse width modulation wave of the two LED light sources, so as to realize the adjustable light intensity of the target area.
[0049] By adjusting the light emitting proportion of the two LED light sources, the cold color light source and the warm color light source are mixed in the target area to realize the color temperature adjustment of the target area.
[0050] In cooperation therewith, the present scheme sets the brightness and color temperature touch function bar 200 as the trigger sensing device of the processing module 400, and in actual application, different gesture touches on the brightness and color temperature touch function bar 200 by the hand can produce different capacitance changes, and the processing module 400 makes corresponding judgments based on the capacitance changes.
[0051] The first touch area 230 and the second touch area 240 are preferably strip-shaped protrusions or grooves.
[0052] As Figure 3 The present scheme preferably has two first touch areas 230 and one second sensing area 240, and in cooperation therewith, the present example preferably sets two touch brightness adjustment bars 210, one sliding touch color temperature adjustment bar 220, and the present example preferably sets two groups of light emitting lamp groups 300; the two groups of light emitting lamp groups 300 are respectively arranged corresponding to the two first touch areas 230.
[0053] The two touch brightness adjustment bars 210 and the one sliding touch color temperature adjustment bar 220 are respectively located on the back of the two first touch areas 230 and the one second sensing area 240.
[0054] The lens 310 of the light emitting lamp group 300 in the present example is preferably arranged in the first touch area 230, and the lens 310 is arranged coincidentally with the first touch area 230, and the touch brightness adjustment bar 210 is arranged on the back of the lens 310, so that the lens 310 in the first touch area 230 can be touched by the finger, and the touch brightness adjustment bar 210 on the back of the lens 310 can sense the corresponding signal.
[0055] The touch-adjusted brightness bar 210 and the sliding touch-adjusted color temperature bar 220 are both capacitive sensing films, and the capacitive sensing films are provided with a plurality of signal markers, and the plurality of signal markers correspond to the first touch area 230 and the second touch area 240 respectively, and the capacitive sensing films are preferably connected to the processing module 400 by using a soft plate and a special connector.
[0056] The touch-adjusted brightness bar 210 sends out a corresponding signal based on the change of the capacitance caused by the change of the touch time of the human hand in the first touch area 230, and the processing module 400 drives the lighting unit 320 to realize stepless adjustment of the brightness according to the change of the capacitance.
[0057] The sliding touch-adjusted color temperature bar 220 sends out a cold color temperature adjustment signal and a warm color temperature adjustment signal based on the change of the capacitance caused by the change of the sliding position of the human hand in the second touch area 240, and the processing module 400 controls the color temperature of all the lighting units 320 to be steplessly adjusted to cold white or warm white according to the signal capacitance change.
[0058] Further, the touch-adjusted brightness bar 210 sends out a corresponding signal based on the change of the capacitance caused by the change of the touch time of the human hand in the first touch area 230, and the processing module 400 receives the signal and adjusts the brightness of the target area light through a preset program logic. The touch-adjusted brightness needs to dynamically adjust the brightness of the two LED light sources according to the touch-adjusted brightness bar 210 signal. The brightness of the lighting unit 320 is steplessly controlled by changing the duty cycle of the PWM signal of the warm color adjustable LED light source 321 and the cold color adjustable LED light source 322.
[0059] The human hand sends out a corresponding signal by sliding in the second touch area 240, and different signal markers can be triggered by sliding, and each signal marker sends out a different capacitance, and the processor receives the corresponding signal and adjusts the light-emitting proportion of the warm color adjustable LED light source 321 and the cold color adjustable LED 322 according to a preset algorithm to achieve the function of steplessly adjusting the color temperature of the target area.
[0060] Further, the processing module 400 can form a single lighting unit on-off signal and a single lighting unit brightness adjustment signal according to the change of the capacitance caused by the change of the time of the single click touch of the human hand in the first touch area 230.
[0061] According to the change of the capacitance caused by the change of the time of the double-click touch of the human hand in the first touch area 240, an all-lighting-unit on-off signal and an all-lighting-unit brightness adjustment signal can be formed.
[0062] Further, as an example, a single lighting unit switching signal is formed based on a single short press on any brightness touch zone, and the processing module 400 controls the switching control of the lighting unit 320 corresponding to the brightness touch zone according to the signal;
[0063] A single lighting unit brightness adjustment signal is formed based on a single long press on any brightness touch zone, and the processing module 400 controls the brightness stepless control of the lighting unit 320 corresponding to the touch zone according to the signal;
[0064] An all lighting unit switching signal is formed based on a single short press and a double short press on any brightness touch zone, and the processing module 400 controls the switching control of all the lighting units 320 according to the signal;
[0065] An all lighting unit brightness adjustment signal is formed based on a single short press and a double long press on any brightness touch zone, and the processing module 400 controls the brightness stepless control of all the lighting units 320 according to the signal.
[0066] The following is an example of the process in which the processing module 400 recognizes the user operation gesture in the present solution, which is only an example and does not limit the present solution. As follows:
[0067] (1) Determine which brightness touch zone is touched;
[0068] (2) Determine what kind of control signal (single lighting unit switching signal, single lighting unit brightness adjustment signal, all lighting unit switching signal, all lighting unit brightness adjustment signal) is input by the user;
[0069] (3) Perform brightness / switching control according to the recognized control signal.
[0070] If it is recognized as a single lighting unit switching signal or an all lighting unit switching signal in the control mode, the triode for turning off the LED light source in the single or all lighting units 320 is controlled to realize switching control;
[0071] If it is recognized as a single lighting unit brightness adjustment signal or an all lighting unit brightness adjustment signal in the control mode, the PWM wave parameter of the single or all lighting units 320 is controlled, the target PWM duty cycle value is calculated in real time according to the length of time touched by the user, and a ramp control mode is adopted to realize stepless change adjustment of brightness.
[0072] The color temperature adjustment is combined with the sliding touch color temperature adjustment bar 220, and the color temperature stepless adjustment is realized by recognizing the user operation gesture, like the brightness adjustment. The basic principle of the color temperature adjustment is that the brightness of different color LEDs is changed by adjusting the PWM duty cycle of the warm color adjustable LED light source 321 and the cold color adjustable LED light source 322, so that the white light of different color temperatures is presented. Since the brightness change and the color temperature change present a nonlinear relationship, in order to realize the color temperature stepless adjustment, the lighting unit 320 simulates the color temperature mixed light performance of two LEDs at different brightness, adopts the linear fitting way to the color temperature-brightness curve, divides the original curve into several linear intervals, in the linear interval, the PWM duty cycle of the warm color adjustable LED light source 321 and the cold color adjustable LED light source 322 is changed by the linear stepless adjustment of the brightness, that is, the software algorithm calculates the target PWM duty cycle value of the color temperature adjustment according to the segmented dimming formula, and realizes the color temperature stepless adjustment. The corresponding relationship between the color temperature adjustment control and the user gesture operation is as follows:
[0073] The user finger slides in the positive direction in the second touch area 240, and the color temperature of the lighting unit 320 is adjusted to the cold white.
[0074] The user finger slides in the reverse direction in the second touch area 240, and the color temperature of the lighting unit 320 is adjusted to the warm white.
[0075] As described above, since the brightness change will affect the color temperature change at the same time, when the brightness change is performed, the color temperature also needs to be calculated synchronously, so that the brightness change will not cause the color temperature change.
[0076] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by the person skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A structure for an automotive interior lighting fixture with infinitely adjustable color temperature and brightness, characterized in that, The device includes a housing, a brightness and color temperature touch function bar, a light-emitting lamp assembly, and a processing module. The light-emitting lamp assembly is disposed inside the housing and electrically connected to the processing module. The brightness and color temperature touch function bar is disposed on the inner surface of the housing. The outer surface of the housing has a touch area corresponding to the brightness and color temperature touch function bar. The brightness and color temperature touch function bar emits a corresponding signal based on the change in capacitance caused by a human hand touching or sliding in the touch area. The processing module receives the signal and drives the light-emitting lamp assembly to adjust the brightness and / or color temperature.
2. The automotive interior lighting structure with stepless adjustment of color temperature and brightness according to claim 1, characterized in that, The light-emitting lamp assembly includes a lens and several lighting units. The lens is disposed on the surface of the housing, and the several lighting units are located inside the housing. The several lighting units emit light sources and transmit them outward from the lens.
3. The automotive interior lighting structure with stepless adjustment of color temperature and brightness according to claim 1, characterized in that, The brightness and color temperature touch function bar includes a touch-adjustable brightness bar and a sliding touch-adjustable color temperature bar. The touch-adjustable brightness bar and the sliding touch-adjustable color temperature bar are respectively disposed on the inner surface of the housing and are electrically connected to the processing module. The outer surface of the housing is provided with a first touch area and a second touch area corresponding to the touch-adjustable brightness bar and the sliding touch-adjustable color temperature bar.
4. The automotive interior lighting structure with stepless adjustment of color temperature and brightness according to claim 3, characterized in that, The first touch area is divided into several brightness touch zones, and each brightness touch zone corresponds to a certain number of lighting units.
5. The automotive interior lighting structure with stepless adjustment of color temperature and brightness according to claim 1, characterized in that, The processing module is a circuit board.
6. The automotive interior lighting structure with stepless adjustment of color temperature and brightness according to claim 2, characterized in that, The lighting unit includes a warm-color adjustable LED light source and a cool-color adjustable LED light source. The warm-color adjustable LED light source and the cool-color adjustable LED light source form a light source group. The warm-color adjustable LED light source and the cool-color adjustable LED light source are integrated on the processing module.
7. The automotive interior lighting structure with stepless adjustment of color temperature and brightness according to claim 6, characterized in that, The warm-color adjustable LED light source and the cool-color adjustable LED light source are respectively provided with light guide strips between them and the lens, and the light is guided to the lens through the guide strips.
8. The automotive interior lighting structure with stepless adjustment of color temperature and brightness according to claim 1, characterized in that, The housing includes an outer cover, an inner cover, an inner shell, and a bottom shell; The inner shell is snap-fitted to the light guide strip, the outer cover is snap-fitted to the inner cover, the inner cover is snap-fitted to the inner shell, and the inner shell, processing module, and bottom shell are fixed with screws.
9. The automotive interior lighting structure with stepless adjustment of color temperature and brightness according to claim 3, characterized in that, The first touch area and the second touch area are strip-shaped protrusions or grooves.
10. The automotive interior lighting structure with stepless adjustment of color temperature and brightness according to claim 3, characterized in that, Both the touch-adjustable brightness bar and the sliding touch-adjustable color temperature bar are capacitive sensing films.