CN216086613U - Control device supporting capacitive touch key and lamp panel indication - Google Patents
Control device supporting capacitive touch key and lamp panel indication Download PDFInfo
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- CN216086613U CN216086613U CN202122489947.1U CN202122489947U CN216086613U CN 216086613 U CN216086613 U CN 216086613U CN 202122489947 U CN202122489947 U CN 202122489947U CN 216086613 U CN216086613 U CN 216086613U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model provides a control device supporting a capacitive touch key and lamp panel indication, which comprises an MCU (microprogrammed control unit) main control chip U1, an LED lamp panel, an induction electrode, a debugging interface CN2, a key interface CN1 and a liquid crystal drive board, wherein a sticker is arranged on the upper surface of the LED lamp panel, the induction electrode is attached below the LED lamp panel, the induction electrode is connected with the MCU main control chip U1, the MCU main control chip U1 is connected with a key signal input end of the liquid crystal drive board through the key interface CN1, a lamp panel signal output end of the liquid crystal drive board is connected with the LED lamp panel, and the MCU main control chip U1 is connected with the debugging interface CN 2. The utility model has the beneficial effects that: and meanwhile, the capacitive touch key and the lamp panel are supported for indication, and the experience is better.
Description
Technical Field
The utility model relates to a touch key, in particular to a control device supporting a capacitive touch key and lamp panel indication.
Background
The traditional mechanical key is relatively simple to manufacture and relatively low in cost, and is generally applied to middle and low-end products. With the market requirements on the overall appearance, texture and user experience of products becoming higher and higher, the touch key is generated.
However, the existing touch keys do not support lamp panel indication, and user experience is poor.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides a control device supporting a capacitive touch key and lamp panel indication.
The utility model provides a control device supporting a capacitive touch key and lamp panel indication, which comprises an MCU (microprogrammed control unit) main control chip U1, an LED lamp panel, an induction electrode, a debugging interface CN2, a key interface CN1 and a liquid crystal drive board, wherein a sticker is arranged on the upper surface of the LED lamp panel, the induction electrode is attached below the LED lamp panel, the induction electrode is connected with the MCU main control chip U1, the MCU main control chip U1 is connected with a key signal input end of the liquid crystal drive board through the key interface CN1, a lamp panel signal output end of the liquid crystal drive board is connected with the LED lamp panel, and the MCU main control chip U1 is connected with the debugging interface CN 2.
As a further improvement of the utility model, the model of the MCU main control chip U1 is cecron SC92F8461BM, the high-speed 1T8051 kernel is embedded with a 23-channel low-power consumption dual-mode capacitive touch circuit.
As a further improvement of the utility model, at least two induction electrodes are provided, and the LED lamp panels correspond to the induction electrodes one by one.
As a further improvement of the utility model, the sensing electrodes are two and are respectively connected to the pin 8 and the pin 9 of the MCU master control chip U1 through a resistor R13 and a resistor R14.
As a further improvement of the present invention, pin 1 of the key interface CN1 is connected to an input voltage VCC, pin 2 of the key interface CN1 is grounded, pin 3 of the key interface CN1 is connected to pin 16 of the MCU main control chip U1 through a resistor R3, a triode Q1 and a resistor R1, pin 4 of the key interface CN1 is connected to pin 15 of the MCU main control chip U1, and pin 5 and pin 6 of the key interface CN1 are respectively connected to the liquid crystal driver board.
As a further improvement of the present invention, pin 3 of the key interface CN1 is connected to one end of the resistor R3, the other end of the resistor R3 is connected to a collector of the transistor Q1, an emitter of the transistor Q1 is grounded, a base of the transistor Q1 is connected to one end of the resistor R1, and the other end of the resistor R1 is connected to pin 16 of the MCU main control chip U1.
As a further improvement of the present invention, pin 1 of the debug interface CN2 is connected to an input voltage VCC, pin 2 of the debug interface CN2 is grounded, pin 3 of the debug interface CN2 is connected to pin 5 of the MCU main control chip U1, and pin 4 of the debug interface CN2 is connected to pin 6 of the MCU main control chip U1.
As a further improvement of the present invention, a pin 1 of the MCU main control chip U1 is connected to an input voltage VCC, a pin 2 of the MCU main control chip U1 is grounded, and a capacitor C1 and a capacitor C2 are connected in parallel between the pin 1 and the pin 2 of the MCU main control chip U1.
As a further improvement of the utility model, the sticker is a printing PVC sticker.
As a further improvement of the utility model, all the wires on the LED lamp panel are kept away from the area corresponding to the sensing electrode.
The utility model has the beneficial effects that: and meanwhile, the capacitive touch key and the lamp panel are supported for indication, and the experience is better.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other solutions can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic block diagram of a control device supporting capacitive touch keys and lamp panel indication according to the present invention.
Fig. 2 is a circuit diagram of an MCU main control chip U1 of the control device supporting capacitive touch keys and lamp panel indication according to the present invention.
Fig. 3 is a circuit diagram of a key interface CN1 of the control device supporting the capacitive touch keys and the lamp panel indication according to the present invention.
Fig. 4 is a circuit diagram of a debugging interface CN2 of the control device supporting the capacitive touch keys and the lamp panel indication according to the present invention.
Fig. 5 is a circuit diagram of a liquid crystal driver board of a control device supporting a capacitive touch key and a light panel indication according to the present invention.
Fig. 6 is a circuit diagram of a liquid crystal driver board of a control device supporting a capacitive touch key and a light panel indication according to the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The utility model is further described with reference to the following description and embodiments in conjunction with the accompanying drawings.
As shown in fig. 1 to 6, a control device supporting capacitive touch keys and lamp panel indication includes a microprocessor/controller 1, an LED lamp panel 2, an induction electrode 3, a Debug interface (Debug interface) CN2, a key interface CN1 and a liquid crystal driver board 6, the upper surface of the LED lamp panel 2 is provided with a sticker, the induction electrode 3 is attached below the LED lamp panel 2, the microprocessor/controller 1 is preferably an MCU master control chip U1, the induction electrode 3 is connected with the MCU master control chip U1, the MCU master control chip U1 is connected with a key signal input end of the liquid crystal driver board 6 through the key interface CN1, a lamp panel signal output end of the liquid crystal driver board 6 is connected with the LED lamp panel 2, the MCU master control chip U1 is connected with the Debug interface CN2, the MCU master control chip U1 sends a key signal to the liquid crystal driver board 6 through the key interface CN1, liquid crystal driver board 6 then sends the lamp plate signal to LED lamp plate 2, and MCU main control chip U1 transmits the debugging signal through debugging interface CN 2.
The control device supporting the capacitive touch keys and the lamp panel indication is arranged below a glass panel of the liquid crystal display.
After the MCU master control chip U1 detects the change of the power-on signal of the induction electrode 3 and carries out de-jitter and de-disturbance processing, the output pin is pulled down through buffering by the key interface CN1, and is output with the connection object 'line and', and the open LED lamp panel control pin is convenient for the connection object to carry out logic design and can be used as touch indication or other purposes.
The MCU main control chip U1 adopts an industrial touch key chip, preferably a Saiyuan micro SC92F8461BM and a high-speed 1T8051 kernel, and an instruction system is completely compatible with the conventional 8051 series. A23-channel low-power-consumption dual-Mode capacitive touch circuit is built in, and the touch circuit can be selectively operated under a STOP Mode. ROM, SRAM, EEPROM, GPIO, timer, ADC, PWM, oscillator, UART and SSI are integrated, and peripheral circuits are simplified.
4 high bright white light lamp pearls of outstanding are disposed respectively to the short avris of LED lamp plate 2, and as lamp plate side income formula light source to reflector plate and back array distribute have scattering little transparent ya keli light guide plate as the medium, change the pointolite into even area source, and printing PVC sticker pastes on the lamp plate.
The LED lamp panel with high brightness, low power consumption and high luminous efficiency is selected and driven by the triode, so that the current drawn out or injected into the control device is reduced. After receiving the key signal 4, the liquid crystal driver board 6 outputs a signal to light the LED lamp panel 2, and after the key signal disappears, the output signal turns off the LED lamp panel 2.
The number of the induction electrodes is at least two, and the LED lamp panels 2 correspond to the induction electrodes one to one.
The sensing electrodes are two and are connected to the pin 8 and the pin 9 of the MCU main control chip U1 through the resistor R13 and the resistor R14 respectively, the effective touch area and the sensitivity (sensing distance) are increased by the oversized sensing electrodes, meanwhile, all layers of wiring of the LED lamp panel 2 are avoided from the corresponding area of the sensing electrodes, and false triggering caused by disturbance is reduced. Similar to the parallel plate capacitance principle, the capacitance changes due to changes of capacitance dielectric constant, dead area and dielectric constant, when an object such as a finger touches the glass panel and acts on the sensing electrode through the LED lamp panel, the potential on the sensing electrode changes slightly, and after the MCU detects the change, the MCU performs logic processing of false triggering removal, shaking removal and disturbance removal, and outputs a low level to be reported to the liquid crystal drive board 6.
The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.
Claims (10)
1. The utility model provides a support controlling means that electric capacity touch button and lamp plate instructed which characterized in that: including MCU main control chip U1, LED lamp plate, response electrode, debugging interface CN2, key interface CN1 and liquid crystal drive board, the upper surface of LED lamp plate is equipped with the sticker, the response electrode is attached in the below of LED lamp plate, the response electrode with MCU main control chip U1 is connected, MCU main control chip U1 passes through key interface CN1 with the key signal input part of liquid crystal drive board is connected, the lamp plate signal output part of liquid crystal drive board with the LED lamp plate is connected, MCU main control chip U1 with debugging interface CN2 is connected.
2. The control device supporting the capacitive touch key and the lamp panel indication according to claim 1, wherein: the MCU main control chip U1 is of a Saiyuan micro SC92F8461BM model, a high-speed 1T8051 kernel and a 23-channel low-power-consumption dual-mode capacitive touch circuit is arranged in the MCU main control chip U1.
3. The control device supporting the capacitive touch key and the lamp panel indication according to claim 1, wherein: the LED lamp panel is in one-to-one correspondence with the induction electrodes.
4. The control device supporting the capacitive touch key and the lamp panel indication according to claim 3, wherein: the sensing electrodes are two and are respectively connected to a pin 8 and a pin 9 of the MCU master control chip U1 through a resistor R13 and a resistor R14.
5. The control device supporting the capacitive touch key and the lamp panel indication according to claim 1, wherein: pin 1 of key interface CN1 inserts input voltage VCC, pin 2 of key interface CN1 ground connection, pin 3 of key interface CN1 is connected to pin 16 of MCU main control chip U1 through resistance R3, triode Q1, resistance R1, pin 4 of key interface CN1 with pin 15 of MCU main control chip U1 is connected, pin 5, pin 6 of key interface CN1 respectively with the liquid crystal driver board is connected.
6. The control device supporting the capacitive touch key and the lamp panel indication according to claim 5, wherein: pin 3 of the key interface CN1 is connected to one end of the resistor R3, the other end of the resistor R3 is connected to the collector of the transistor Q1, the emitter of the transistor Q1 is grounded, the base of the transistor Q1 is connected to one end of the resistor R1, and the other end of the resistor R1 is connected to pin 16 of the MCU main control chip U1.
7. The control device supporting the capacitive touch key and the lamp panel indication according to claim 1, wherein: pin 1 of debugging interface CN2 inserts input voltage VCC, pin 2 of debugging interface CN2 ground connection, pin 3 of debugging interface CN2 with MCU main control chip U1's pin 5 is connected, pin 4 of debugging interface CN2 with MCU main control chip U1's pin 6 is connected.
8. The control device supporting the capacitive touch key and the lamp panel indication according to claim 1, wherein: pin 1 of MCU main control chip U1 inserts input voltage VCC, MCU main control chip U1's pin 2 ground connection, parallelly connected electric capacity C1, electric capacity C2 between MCU main control chip U1's pin 1, pin 2.
9. The control device supporting the capacitive touch key and the lamp panel indication according to claim 1, wherein: the sticker is printing PVC sticker.
10. The control device supporting the capacitive touch key and the lamp panel indication according to claim 1, wherein: all walk the line on the LED lamp plate and all avoid the region that the response electrode corresponds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122489947.1U CN216086613U (en) | 2021-10-15 | 2021-10-15 | Control device supporting capacitive touch key and lamp panel indication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122489947.1U CN216086613U (en) | 2021-10-15 | 2021-10-15 | Control device supporting capacitive touch key and lamp panel indication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216086613U true CN216086613U (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122489947.1U Active CN216086613U (en) | 2021-10-15 | 2021-10-15 | Control device supporting capacitive touch key and lamp panel indication |
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| Country | Link |
|---|---|
| CN (1) | CN216086613U (en) |
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2021
- 2021-10-15 CN CN202122489947.1U patent/CN216086613U/en active Active
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