CN217495966U - Vehicle button prevents colour mixture circuit and vehicle - Google Patents
Vehicle button prevents colour mixture circuit and vehicle Download PDFInfo
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- CN217495966U CN217495966U CN202221670868.9U CN202221670868U CN217495966U CN 217495966 U CN217495966 U CN 217495966U CN 202221670868 U CN202221670868 U CN 202221670868U CN 217495966 U CN217495966 U CN 217495966U
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Abstract
The utility model provides a colour mixture circuit and vehicle are prevented to vehicle button, the colour mixture circuit is prevented to vehicle button includes that pilot lamp display module, background light show module and background light extinguish module. In the utility model, the indicator light display module utilizes the first power signal to drive the indicator light to light, thereby realizing the indication prompt of the function key, and simultaneously, the background light extinguishing module generates a control signal according to the first power signal and extinguishes the background light through the control signal, so that the first power signal lights the indicator light and extinguishes the background light; the backlight display module utilizes the second power signal to drive and light the backlight, so that the background prompt of the functional keys is realized, and the second power signal only lights the backlight and does not light the indicator, so that the indicator and the backlight can not be driven and lighted simultaneously, and the influence of color cross and brightness cross on the driving experience caused by double lighting of the indicator and the backlight and the driving misjudgment caused by the influence of the color cross and the brightness cross on the driving experience can be effectively avoided.
Description
Technical Field
The utility model relates to an automobile body application development technical field, concretely relates to colour mixture circuit and vehicle are prevented to vehicle button.
Background
In the case of unknown light, the vehicle will typically turn on the width light and the functions above the width light (low beam, high beam, automatic light). At this time, all background lights on the vehicle are lighted for the background indication of the function keys. Besides the background light prompt, for some keys which are more critical and have no triggering marks, the form of an indicator lamp is selected to give an indication to a vehicle operator, such as an electronic brake, a key start-stop, a central control door lock indicator lamp and the like. When the double suggestion of background light and pilot lamp, the colour of these two kinds of lamps is alternately can influence indicating effect with luminance alternately, and then greatly reduced drives and experiences, can influence the driver even and make wrong driving judgement.
Therefore, a technical solution capable of effectively preventing the indicator and the backlight from being turned on simultaneously is needed.
SUMMERY OF THE UTILITY MODEL
In view of the above prior art's shortcoming, the utility model provides a vehicle light shows technical scheme to avoid pilot lamp and background light to light simultaneously, stop the cross effect that the two probably appears when lighting simultaneously.
To achieve the above and other related objects, the present invention provides the following technical solutions.
A vehicle key color mixing prevention circuit comprising:
the indicating lamp display module is used for receiving a first power supply signal, and the first power supply signal is used for driving the indicating lamp to be lightened and indicating and prompting the functional keys;
the backlight display module is used for receiving a second power supply signal, and the second power supply signal is used for driving and lightening a backlight and carrying out background prompt on the function key;
and the background light extinguishing module is respectively connected with the indicator light display module and the background light display module, and generates a control signal according to the first power signal, wherein the control signal is used for extinguishing the background light.
Optionally, the indicator light display module includes:
the input end of the indicator lamp driving unit is connected with the first power supply signal;
the anode of the indicator light is connected with the output end of the indicator light driving unit, and the cathode of the indicator light is grounded;
and the first filtering unit is respectively connected with the indicator lamp driving unit and the indicator lamp.
Optionally, the indicator driving unit includes a first diode and a first resistor, an anode of the first diode is connected to the first power signal, and a cathode of the first diode is connected to an anode of the indicator after passing through the first resistor.
Optionally, the first filtering unit includes a first capacitor, a second capacitor, and a third capacitor, one end of the first capacitor is connected to the cathode of the first diode, the other end of the first capacitor is grounded after passing through the second capacitor connected in series, and the third capacitor is connected in parallel with the indicator light.
Optionally, the backlight display module comprises:
the input end of the backlight driving unit is connected with the second power supply signal;
the anode of the backlight is connected with the output end of the backlight driving unit, and the cathode of the backlight is grounded;
and the second filtering unit is respectively connected with the backlight driving unit and the backlight.
Optionally, the backlight driving unit includes a second diode and a second resistor, an anode of the second diode is connected to the second power signal, and a cathode of the second diode is connected to an anode of the backlight through the second resistor connected in series.
Optionally, the second filtering unit includes a fourth capacitor, a fifth capacitor, and a sixth capacitor, one end of the fourth capacitor is connected to the cathode of the second diode, the other end of the fourth capacitor is grounded after passing through the fifth capacitor, and the sixth capacitor is connected in parallel with the backlight.
Optionally, the backlight extinction module comprises:
the input end of the voltage division unit is connected with the cathode of the first diode, and the output end of the voltage division unit outputs the control signal;
the background light extinguishing execution unit is connected with the control signal and the background light and extinguishes the background light under the control of the control signal;
and the third filtering unit is connected with the voltage division unit and is used for filtering the control signal.
Optionally, the voltage dividing unit includes a third resistor and a fourth resistor, one end of the third resistor is connected to the cathode of the first diode, the other end of the third resistor is grounded after passing through the fourth resistor connected in series, and a common end of the third resistor and the fourth resistor outputs the control signal; the backlight extinction execution unit comprises an NPN triode and a fifth resistor, the base electrode of the NPN triode is connected with the control signal through the fifth resistor in series, the emitting electrode of the NPN triode is connected with the cathode of the backlight, and the collecting electrode of the NPN triode is connected with the anode of the backlight.
A vehicle comprises the vehicle key color mixing prevention circuit.
The utility model has the advantages that: the indicating lamp display module drives the lightening indicating lamp by utilizing the first power supply signal to realize indicating prompt of the function key, and meanwhile, the background light extinguishing module generates a control signal according to the first power supply signal and extinguishes the background light through the control signal, namely, the first power supply signal lightens the indicating lamp and extinguishes the background light; the backlight display module utilizes the second power signal to drive and light the backlight, so as to realize the background prompt of the functional keys, namely, the second power signal only lights the backlight and does not light the indicator, so that the indicator and the backlight can not be driven and lighted simultaneously, and the influence of color cross and brightness cross on the driving experience and the driving misjudgment caused by the double lighting of the indicator and the backlight can be effectively avoided.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a block diagram of a color mixing prevention circuit for vehicle keys;
fig. 2 is a circuit diagram of a color mixture preventing circuit for a vehicle key according to an exemplary embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described with reference to the accompanying drawings and preferred embodiments, and other advantages and effects of the invention will be easily understood by those skilled in the art from the disclosure in the specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are for purposes of illustration only and are not intended to limit the scope of the present invention.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
In the following description, numerous details are set forth to provide a more thorough explanation of embodiments of the present invention, however, it will be apparent to one skilled in the art that embodiments of the present invention may be practiced without these specific details, and in other embodiments, well-known structures and devices are shown in block diagram form rather than in detail in order to avoid obscuring embodiments of the present invention.
As described in the foregoing background, the inventors have studied to find that: in the instrument panel and the function key application development of the existing vehicle, when a background light and an indicator light are utilized for dual prompting, the color intersection and the brightness intersection of the two lights can influence the indicating effect, so that the driving experience is reduced, and even the wrong driving judgment of a driver can be influenced.
Based on this, the utility model provides a colour mixture circuit is prevented to vehicle button, as shown in FIG. 1, it includes:
the indicator light display module is used for receiving a first power supply signal VDD1, and the first power supply signal VDD1 is used for driving and lighting an indicator light and indicating and prompting a function key;
the backlight display module receives a second power supply signal VDD2, and the second power supply signal VDD2 is used for driving and lightening a backlight and carrying out background prompt on the function keys;
and the background light extinguishing module is respectively connected with the indicator light display module and the background light display module, generates a control signal V1 according to a first power signal VDD1, and the control signal V1 is used for extinguishing the background light.
In detail, as shown in fig. 1, the indicator light display module includes:
the input end of the indicator lamp driving unit is connected with a first power supply signal VDD 1;
the anode of the indicator light is connected with the output end of the indicator light driving unit, and the cathode of the indicator light is grounded;
the first filtering unit is respectively connected with the indicator lamp driving unit and the indicator lamp.
In detail, as shown in fig. 1, the backlight display module includes:
the input end of the backlight driving unit is connected with a second power supply signal VDD 2;
the anode of the background lamp is connected with the output end of the background light driving unit, and the cathode of the background lamp is grounded;
and the second filtering unit is respectively connected with the background light driving unit and the background light.
In detail, as shown in fig. 1, the backlight extinction module includes:
the input end of the voltage division unit is connected with the cathode of the first diode, and the output end of the voltage division unit outputs a control signal V1;
the background light extinguishing execution unit is connected with the control signal V1 and the background light, and the background light is extinguished under the control of the control signal V1;
and the third filtering unit is connected with the voltage division unit and is used for filtering the control signal V1.
The indicating lamp and the background lamp are both light emitting diodes.
In more detail, as shown in fig. 1, the control principle of the whole vehicle key color mixing prevention circuit is as follows:
1) the second power supply signal VDD2 is input, the backlight driving unit drives and lights the backlight, the second power supply signal VDD2 can be a PWM power supply, and the brightness of the backlight can be adjusted by adjusting the duty ratio;
2) the first power supply signal VDD1 is input, and the indicator lamp is driven and lightened by the indicator lamp driving unit; meanwhile, the first power supply signal VDD1 is used as a trigger signal, and the control signal V1 is generated by a voltage division single trigger, and the control signal V1 controls the backlight extinction execution unit to execute the operation of extinction of the backlight.
Therefore, the truth table of the whole vehicle key color mixing prevention circuit control process is as follows:
| function(s) | Background lamp enable (Only) | Indicator light enable |
| Background light | Bright and bright | Is not bright |
| Indicator light | Is not bright | Bright Light (LIGHT) |
In an optional embodiment of the present invention, a detailed structure of the color mixing prevention circuit for the vehicle key is shown in fig. 2.
In detail, as shown in fig. 2, in the indicator display module, the indicator driving unit further includes a first diode D1 and a first resistor R1, an anode of the first diode D1 is connected to the first power signal VDD1, and a cathode of the first diode D1 is connected to an anode of the indicator D01 via a first resistor R1; one end of the first resistor R1, which is far away from the first diode D1, serves as an output end of the indicator light driving unit, the anode of the indicator light D01 is connected at the output end, and the cathode of the indicator light D01 is grounded GND; the first filter unit further comprises a first capacitor C1, a second capacitor C2 and a third capacitor C3, one end of the first capacitor C1 is connected with the cathode of the first diode D1, the other end of the first capacitor C1 is grounded GND after passing through the second capacitor C2 which is connected in series, and the third capacitor C3 is connected with the indicator light D01 in parallel.
In detail, as shown in fig. 2, in the backlight display module, the backlight driving unit further includes a second diode D2 and a second resistor R2, an anode of the second diode D2 is connected to the second power signal VDD2, and a cathode of the second diode D2 is connected to an anode of the backlight D02 after passing through the second resistor R2 connected in series; one end of the second resistor R2, which is far away from the second diode D2, serves as an output end of the backlight driving unit, the anode of the backlight D02 is connected thereto, and the cathode of the backlight D02 is grounded GND; the second filtering unit further includes a fourth capacitor C4, a fifth capacitor C5 and a sixth capacitor C6, one end of the fourth capacitor C4 is connected to the cathode of the second diode D2, the other end of the fourth capacitor C4 is grounded to GND after passing through the fifth capacitor C5 connected in series, and the sixth capacitor C6 is connected in parallel with the backlight D02.
In detail, as shown in fig. 2, in the backlight extinction module, the voltage dividing unit further includes a third resistor R3 and a fourth resistor R4, one end of the third resistor R3 is connected to the cathode of the first diode D1, the other end of the third resistor R3 is grounded to GND through the serially connected fourth resistor R4, and a common end of the third resistor R3 and the fourth resistor R4 outputs the control signal V1; the background light extinction execution unit further comprises an NPN triode Q and a fifth resistor R5, the base electrode of the NPN triode Q is connected with the control signal V1 through the fifth resistor R5 which is connected in series, the emitting electrode of the NPN triode Q is connected with the cathode of the background light D02, and the collecting electrode of the NPN triode Q is connected with the anode of the background light D02; the third filtering unit further includes a seventh capacitor C7, and the seventh capacitor C7 is connected in parallel with the fourth resistor R4.
In more detail, the operation principle of the vehicle key color mixing prevention circuit as shown in fig. 2 is as follows:
1) when a second power supply signal VDD2 (such as a PWM power supply signal) is input, the second power supply signal VDD2 sequentially passes through the second diode D2, the second resistor R2 and the backlight D02 and then reaches the ground GND to form a loop, so as to drive and light the backlight D02;
2) when the first power supply signal VDD1 is input (at a high level), the first power supply signal VDD1 sequentially passes through the first diode D1, the first resistor R1 and the indicator lamp D01 and then reaches the ground GND to form a loop, so as to drive and light the indicator lamp D01; meanwhile, the first power signal VDD1 sequentially passes through the first diode D1, the third resistor R3 and the fourth resistor R4 and then reaches the ground GND, voltage division processing is performed on the first power signal VDD1, a control signal V1 is obtained at a common end of the third resistor R3 and the fourth resistor R4, the control signal V1 is relatively high, so that the NPN triode Q is turned on and is in a deep saturation state, and thus the backlight D02 arranged in parallel with the NPN triode Q is close to being short-circuited, and the light-emitting brightness of the NPN transistor can be ignored when the terminal voltage is at low voltage (less than 0.5V) according to the general characteristics of the light-emitting diode, so that the control signal V1 acts on the NPN triode Q to turn off the backlight D02, and the function of turning off the backlight is realized.
It should be noted that, in the present invention, the indicator light or the background light is directly driven or extinguished by the power signal; the utility model discloses well vehicle button prevents mixing of colors circuit's concrete structure is not only limited to the circuit as shown in fig. 2, can slightly change some constitutional units, can also include more complicated functional structure like voltage stabilizing structure, current-limiting structure etc. do not do the restriction here.
Based on above-mentioned vehicle button prevents colour mixture circuit, the utility model discloses still provide a vehicle, it includes above-mentioned vehicle button and prevents colour mixture circuit, prevent the structural design of colour mixture circuit based on "pilot lamp display module + background light extinguishes the module" through above-mentioned vehicle button for pilot lamp and background light can't be lighted by the drive simultaneously, can effectively avoid because of pilot lamp and the double produced colour of lighting of background light alternately, the influence of luminance alternately to driving experience is even as to the driving misjudgement that arouses.
In summary, in the utility model provides an in vehicle button color mixture preventing circuit and vehicle, pilot lamp display module utilizes first power signal drive to light the pilot lamp, realizes the instruction suggestion to the function button, and simultaneously, the background light goes out the module and produces control signal and goes out the background light through this control signal according to first power signal for first power signal lights the pilot lamp and goes out the background light; the backlight display module utilizes the second power signal to drive and light the backlight, so that the background prompt of the functional keys is realized, and the second power signal only lights the backlight and does not light the indicator, so that the indicator and the backlight can not be driven and lighted simultaneously, and the influence of color cross and brightness cross on the driving experience caused by double lighting of the indicator and the backlight and the driving misjudgment caused by the influence of the color cross and the brightness cross on the driving experience can be effectively avoided.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical idea of the present invention shall be covered by the claims of the present invention.
Claims (10)
1. A vehicle key color mixing prevention circuit is characterized by comprising:
the indicating lamp display module receives a first power supply signal, and the first power supply signal is used for driving the lightening of the indicating lamp and indicating and prompting the functional keys;
the background light display module is used for receiving a second power supply signal, and the second power supply signal is used for driving and lightening a background light and carrying out background prompt on the function key;
and the background light extinguishing module is respectively connected with the indicator light display module and the background light display module, and generates a control signal according to the first power supply signal, wherein the control signal is used for extinguishing the background light.
2. The vehicle key color mixing prevention circuit according to claim 1, wherein the indicator light display module comprises:
the input end of the indicator lamp driving unit is connected with the first power supply signal;
the anode of the indicator light is connected with the output end of the indicator light driving unit, and the cathode of the indicator light is grounded;
and the first filtering unit is respectively connected with the indicator lamp driving unit and the indicator lamp.
3. The vehicle key anti-color mixing circuit as claimed in claim 2, wherein the indicator driving unit comprises a first diode and a first resistor, an anode of the first diode is connected to the first power signal, and a cathode of the first diode is connected to an anode of the indicator through the first resistor connected in series.
4. The vehicle key color mixing prevention circuit according to claim 3, wherein the first filter unit comprises a first capacitor, a second capacitor and a third capacitor, one end of the first capacitor is connected with the cathode of the first diode, the other end of the first capacitor is grounded after passing through the second capacitor connected in series, and the third capacitor is connected in parallel with the indicator light.
5. The vehicle key color mixing prevention circuit according to claim 1 or 4, wherein the backlight display module comprises:
the input end of the backlight driving unit is connected with the second power supply signal;
the anode of the backlight is connected with the output end of the backlight driving unit, and the cathode of the backlight is grounded;
and the second filtering unit is respectively connected with the backlight driving unit and the backlight.
6. The vehicle key color mixing prevention circuit according to claim 5, wherein the backlight driving unit comprises a second diode and a second resistor, an anode of the second diode is connected with the second power signal, and a cathode of the second diode is connected with an anode of the backlight through the second resistor connected in series.
7. The vehicle key color mixing prevention circuit as claimed in claim 6, wherein the second filtering unit comprises a fourth capacitor, a fifth capacitor and a sixth capacitor, one end of the fourth capacitor is connected to the cathode of the second diode, the other end of the fourth capacitor is grounded after passing through the fifth capacitor connected in series, and the sixth capacitor is connected in parallel with the backlight.
8. The key press color mixing prevention circuit for the vehicle as claimed in claim 4, wherein the backlight extinction module comprises:
the input end of the voltage division unit is connected with the cathode of the first diode, and the output end of the voltage division unit outputs the control signal;
the background light extinguishing execution unit is connected with the control signal and the background light and extinguishes the background light under the control of the control signal;
and the third filtering unit is connected with the voltage division unit and is used for filtering the control signal.
9. The vehicle key color mixing prevention circuit according to claim 8, wherein the voltage dividing unit comprises a third resistor and a fourth resistor, one end of the third resistor is connected to the cathode of the first diode, the other end of the third resistor is grounded after passing through the fourth resistor connected in series, and the common end of the third resistor and the fourth resistor outputs the control signal; the background light extinction execution unit comprises an NPN triode and a fifth resistor, the base electrode of the NPN triode is connected with the control signal through the fifth resistor in series, the emitting electrode of the NPN triode is connected with the cathode of the background light, and the collecting electrode of the NPN triode is connected with the anode of the background light.
10. A vehicle characterized by comprising the vehicle key color mixing prevention circuit as recited in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221670868.9U CN217495966U (en) | 2022-06-29 | 2022-06-29 | Vehicle button prevents colour mixture circuit and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221670868.9U CN217495966U (en) | 2022-06-29 | 2022-06-29 | Vehicle button prevents colour mixture circuit and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN217495966U true CN217495966U (en) | 2022-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221670868.9U Active CN217495966U (en) | 2022-06-29 | 2022-06-29 | Vehicle button prevents colour mixture circuit and vehicle |
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| CN (1) | CN217495966U (en) |
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- 2022-06-29 CN CN202221670868.9U patent/CN217495966U/en active Active
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