CN216391485U - Lamp body control circuit and electric motor car - Google Patents
Lamp body control circuit and electric motor car Download PDFInfo
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- CN216391485U CN216391485U CN202122112324.2U CN202122112324U CN216391485U CN 216391485 U CN216391485 U CN 216391485U CN 202122112324 U CN202122112324 U CN 202122112324U CN 216391485 U CN216391485 U CN 216391485U
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Abstract
The utility model discloses a lamp body control circuit and an electric vehicle, wherein a first selection end of a mode selector switch of the lamp body control circuit is electrically connected with a first end of a manual control switch, and a second selection end of the mode selector switch of the lamp body control circuit is electrically connected with an input end of an automatic control circuit; the second end of the manual control switch is electrically connected with the lamp body; the light ray acquisition circuit is electrically connected with the control module and is used for generating a first automatic control signal according to the light ray intensity; the control module is electrically connected with the automatic control circuit, the automatic control circuit is electrically connected with the lamp body, the automatic control circuit is used for generating a second automatic control signal when the public end of the mode change-over switch is electrically connected with the second selection end of the mode change-over switch, and the control module is used for controlling the lamp body to be turned on or turned off according to the first automatic control signal when receiving the second automatic control signal. According to the technical scheme, the automatic control lamp body and the manual control lamp body can be freely switched, and a user can freely select the control mode of the lamp body conveniently.
Description
Technical Field
The embodiment of the utility model relates to the technical field of illumination, in particular to a lamp body control circuit and an electric vehicle.
Background
Electric vehicles are widely used as travel tools due to their advantages of small size, convenience in operation, and the like.
However, the existing electric vehicle can only manually control the lighting lamp to be turned on, and the free switching between the manual control and the automatic control of the lighting lamp to be turned on cannot be achieved, so that the electric vehicle is single in function.
SUMMERY OF THE UTILITY MODEL
The utility model provides a lamp body control circuit and an electric vehicle, which are used for realizing free switching between a manual control lamp body and an automatic control lamp body.
In a first aspect, an embodiment of the present invention provides a lamp body control circuit, including a control module, a mode switch, an automatic control circuit, a manual control switch, a light collection circuit, and a lamp body;
a common end of the mode selector switch is electrically connected with a first power supply, a first selection end of the mode selector switch is electrically connected with a first end of the manual control switch, and a second selection end of the mode selector switch is electrically connected with an input end of the automatic control circuit;
the second end of the manual control switch is electrically connected with the lamp body;
the output end of the light ray acquisition circuit is electrically connected with the first end of the control module, and the light ray acquisition circuit is used for generating a first automatic control signal according to the light ray intensity;
the second end of the control module is electrically connected with the first output end of the automatic control circuit, the third end of the control module is electrically connected with the control end of the automatic control circuit, the second output end of the automatic control circuit is electrically connected with the lamp body, and the automatic control circuit is used for generating a second automatic control signal when the common end of the mode selector switch is electrically connected with the second selection end of the mode selector switch;
and the control module is used for controlling the lamp body to be lightened or extinguished according to the first automatic control signal when receiving the second automatic control signal.
Optionally, the automatic control circuit includes an automatic detection unit and an automatic control unit;
the input end of the automatic detection unit is electrically connected with the second selection end of the mode selector switch, the output end of the automatic detection unit is electrically connected with the second end of the control module, and the automatic detection unit is used for generating a first signal according to the communication state between the common end of the mode selector switch and the second selection end of the mode selector switch;
the input end of the automatic control unit is electrically connected with the third end of the control module, the output end of the automatic control unit is electrically connected with the lamp body, and the control module is used for controlling the automatic control unit to light on or light off the lamp body according to the automatic control signal when the first signal is received to be at the first level.
Optionally, the automatic detection unit includes a first resistor and a second resistor, a first end of the first resistor is electrically connected to the second selection terminal of the mode switch, a second end of the first resistor is electrically connected to the second terminal of the control module, the second end of the first resistor is further electrically connected to the first end of the second resistor, and the second end of the second resistor is grounded.
Optionally, the automatic control unit includes a first switching tube, a second switching tube, and a diode;
the control end of the first switch tube is electrically connected with the third end of the control module, the first end of the first switch tube is electrically connected with the control end of the second switch tube, the second end of the first switch tube is grounded, the first end of the second switch tube is electrically connected with the second power supply, the second end of the second switch tube is electrically connected with the positive end of the diode, and the negative end of the diode is electrically connected with the lamp body.
Optionally, the first switch tube is an NPN triode, and the second switch tube is a PNP triode.
Optionally, the automatic control unit further includes a short-circuit protection subunit, where the short-circuit protection subunit includes a third resistor and a fourth resistor, a first end of the third resistor is electrically connected to the second end of the second switching tube, a second end of the third resistor is electrically connected to the fourth end of the control module, a second end of the third resistor is further electrically connected to the first end of the fourth resistor, and a second end of the fourth resistor is grounded; the short-circuit protection subunit is used for generating a short-circuit signal when the lamp body is short-circuited;
the control module is used for controlling the first switching tube to be switched off according to the short-circuit signal.
Optionally, the light acquisition circuit includes at least one light acquisition unit, a first end of the light acquisition unit is electrically connected to the third power supply, and a second end of the light acquisition unit is grounded;
the light acquisition unit comprises a fifth resistor and a photosensitive element, the first end of the fifth resistor is electrically connected with the third power supply, the second end of the fifth resistor is electrically connected with the first end of the control module, the second end of the fifth resistor is also electrically connected with the first end of the photosensitive element, and the second end of the photosensitive element is grounded.
Optionally, the photosensitive element is a photodiode.
Optionally, the lamp body control circuit further includes a lamp body state detection module and an indicator light, and the lamp body state detection module includes a sixth resistor and a seventh resistor;
a first end of the sixth resistor is electrically connected with the lamp body, a second end of the sixth resistor is electrically connected with a fifth end of the control module, a second end of the sixth resistor is also electrically connected with a first end of the seventh resistor, and a second end of the seventh resistor is grounded; the lamp body state detection module is used for generating a prompt signal according to the state of the lamp body;
and the sixth end of the control module is electrically connected with the indicator lamp, and the control module is used for controlling the indicator lamp to be turned on or turned off according to the prompt signal.
Optionally, the lamp body control circuit further comprises a lamp body driving module, the lamp body driving module comprises a constant current source, an input end of the constant current source is electrically connected with the second end of the manual control switch, an input end of the constant current source is further electrically connected with the second output end of the automatic control circuit, and an output end of the constant current source is electrically connected with the lamp body.
In a second aspect, an embodiment of the present invention further provides an electric vehicle, which includes the lamp body control circuit according to any one of the first aspect.
The embodiment of the utility model provides a lamp body control circuit and an electric vehicle, wherein a common end of a mode selector switch of the lamp body control circuit is electrically connected with a first power supply, a first selection end of the mode selector switch is electrically connected with a first end of a manual control switch, and a second selection end of the mode selector switch is electrically connected with an input end of an automatic control circuit; the second end of the manual control switch is electrically connected with the lamp body; the light collection circuit is electrically connected with the control module; the control module is electrically connected with the automatic control circuit, and the automatic control circuit is electrically connected with the lamp body. After the public end of the mode switching switch is connected with the first selection end, the lamp body is manually controlled to be turned on or turned off through the on-off of the manual control switch. After the public end of the mode switching switch is connected with the second selection end, the control module controls the lamp body to be turned on or turned off according to a first automatic control signal generated by the light ray acquisition circuit according to the light ray intensity, and then the lamp body is automatically controlled to be turned on or turned off according to the light ray intensity. The lamp body control circuit provided by the embodiment of the utility model can realize free switching between the automatic control lamp body and the manual control lamp body, is convenient for a user to freely select the control mode of the lamp body, and provides greater convenience for the user.
Drawings
Fig. 1 is a schematic structural diagram of a lamp body control circuit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another lamp body control circuit provided in the embodiment of the present invention;
fig. 3 is a schematic structural diagram of another lamp body control circuit provided in the embodiment of the present invention;
fig. 4 is a schematic structural diagram of another lamp body control circuit according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a lamp body control circuit according to an embodiment of the present invention, referring to fig. 1, the lamp body control circuit includes a control module 100, a mode switch Q1, an automatic control circuit 200, a manual control switch Q2, a light collection circuit 300, and a lamp body L1;
a common terminal Q11 of the mode switch Q1 is electrically connected to the first power supply 400, a first selection terminal Q12 of the mode switch Q1 is electrically connected to a first terminal of a manual control switch Q2, and a second selection terminal Q13 of the mode switch Q1 is electrically connected to an input terminal a1 of the automatic control circuit 200;
a second end of the manual control switch Q2 is electrically connected with the lamp body L1;
the output end of the light collection circuit 300 is electrically connected with the first end B1 of the control module 100, and the light collection circuit 300 is configured to generate a first automatic control signal according to the light intensity;
the second terminal B2 of the control module 100 is electrically connected to the first output terminal U1 of the automatic control circuit 200, the third terminal B3 of the control module 100 is electrically connected to the control terminal G of the automatic control circuit 200, the second output terminal U2 of the automatic control circuit 200 is electrically connected to the lamp body L1, and the automatic control circuit 200 is configured to generate a second automatic control signal when the common terminal Q11 of the mode switch Q1 is electrically connected to the second selection terminal Q13 of the mode switch Q1;
the control module 100 is configured to control the lamp body L1 to turn on or turn off according to the first automatic control signal when receiving the second automatic control signal.
The first power source 400 may be a battery pack for supplying power to the lamp body control circuit. It should be noted that when the lamp body control circuit is applied to an electric vehicle, the first power source 400 outputs electric energy to the lamp body control circuit after the electric vehicle is powered on. The lamp body L1 may be a lamp capable of performing a lighting function, in this embodiment, the lamp body L1 is further grounded GND, and in other embodiments, the lamp body L1 may be connected to another load. The control module 100 may be a controller. The first automatic control signal is a voltage signal, and the light collection circuit 300 can output a corresponding voltage according to the illumination intensity, and each illumination intensity corresponds to a voltage value, and the stronger the illumination intensity is in this embodiment, the larger the voltage value output by the output end of the light collection circuit 300 is. In other embodiments, the stronger the illumination intensity is, the smaller the voltage value output by the output terminal of the light collection circuit 300 can be. The second automatic control signal is a level signal, and when the common terminal Q11 of the mode switch Q1 is electrically connected to the second selection terminal Q13 of the mode switch Q1, the second automatic control signal may be low level or high level, which is exemplarily shown in the present embodiment.
The control mode of the lamp body L1 includes manual control and automatic control, when the common terminal Q11 of the mode switch Q1 is connected with the first selection terminal Q12 thereof, the lamp body L1 is manually controlled; when the common terminal Q11 of the mode switching switch Q1 is connected to the second selection terminal Q13 thereof, the lamp body L1 is automatically controlled. The first output terminal U1 of the automatic control circuit 200 outputs a high level when the common terminal Q11 of the mode switch Q1 is connected to the second selection terminal Q13 thereof, and the first output terminal U1 of the automatic control circuit 200 outputs a low level when the common terminal Q11 of the mode switch Q1 is disconnected from the second selection terminal Q13 thereof.
The working principle of the lamp body control circuit is as follows:
when a user needs to manually control the lamp body L1, the common end Q11 of the mode switch Q1 is connected with the first selection end Q12 of the mode switch Q1, the manual control switch Q2 is closed, the first power supply 400 supplies power to the lamp body L1 through the common end Q11 of the mode switch Q1, the first selection end Q12 and the manual control switch Q2, and the lamp body L1 is lightened; the manual control switch Q2 is turned off, the manual control line between the first power source 400 and the lamp body L1 is cut off, and the lamp body L1 is turned off. When the user needs to automatically control the lamp body L1, the common terminal Q11 of the mode switch Q1 is connected to the second selection terminal Q13, and at this time, the control mode of the lamp body L1 is switched to automatic control. The input terminal a1 of the automatic control circuit 200 is connected to the first power supply 400, and inputs a high level to the second terminal B2 of the control module 100 through the first output terminal U1. When the control module 100 receives that the second terminal B2 is at the high level and the voltage value input from the first terminal B1 is less than or equal to the predetermined threshold, the control module generates the high level and outputs the high level to the control terminal G of the automatic control circuit 200 through the third terminal B3, and when the control terminal G of the automatic control circuit 200 is at the high level, the second output terminal U2 outputs the high level to light the lamp body L1. When the control module 100 receives that the second terminal B2 is at the high level and the voltage value input from the first terminal B1 is greater than the set threshold, it generates the low level and outputs the low level to the control terminal G of the automatic control circuit 200 through the third terminal B3, and when the control terminal G of the automatic control circuit 200 is at the low level, the second output terminal U2 outputs the low level, so that the lamp body L1 is turned off.
It should be noted that when the lamp body L1 is manually controlled, the common terminal Q11 of the mode switch Q1 is disconnected from the second selection terminal Q13 thereof, the first output terminal U1 of the automatic control circuit 200 inputs a low level to the second terminal B2 of the control module 100, and the control module 100 always outputs a low level to the control terminal G of the automatic control circuit 200 according to the low level input by the second terminal thereof, so that the automatic control circuit 200 outputs a low level to the lamp body L1, and the automatic control of the lamp body L1 does not affect the manual control. Similarly, when the lamp body L1 is automatically controlled, the first power source 400, the common terminal Q11 of the mode switch Q2, the first selection terminal Q12 and the lamp body L1 are disconnected from each other, so that the manual control of the lamp body L1 does not affect the automatic control.
After the common end of the mode selector switch of the lamp body control circuit of this embodiment is connected to the first selection end, the lamp body is manually controlled to be turned on or turned off by turning on or off the manual control switch. After the public end of the mode switching switch is connected with the second selection end, the control module controls the lamp body to be turned on or turned off according to a first automatic control signal generated by the light ray acquisition circuit according to the light ray intensity, and then the lamp body is automatically controlled to be turned on or turned off according to the light ray intensity. The lamp body control circuit of this embodiment can realize the free switching of automatic control lamp body and manual control lamp body, and the user of being convenient for freely selects the control mode of lamp body, provides bigger convenience for the user.
Fig. 2 is a schematic structural diagram of another lamp body control circuit provided in an embodiment of the present invention, referring to fig. 2, optionally, the lamp body control circuit further includes a lamp body driving module 800, the lamp body driving module 800 includes a constant current source 810, an input terminal Vin of the constant current source 810 is electrically connected to a second terminal of the manual control switch Q2, the input terminal Vin of the constant current source 810 is further electrically connected to a second output terminal U2 of the automatic control circuit 200, and an output terminal Vout of the constant current source 810 is electrically connected to the lamp body L1.
Optionally, the lamp driving module 800 further includes an eleventh resistor R11, and the eleventh resistor R11 is connected between the ground terminal GD of the constant current source 810 and the lamp L1.
When the constant current source 810 is in normal operation, and the voltage input to the input terminal Vin is within the allowable range, the current output from the output terminal Vout is constant, so that the light emission of the lamp body L1 is uniform. For example, the allowable range of the voltage input by the input terminal Vin of the constant current source 810 is 2V-10V, and the current output by the output terminal Vout is constant, so that the lamp body L1 can still keep uniform light emission when the voltage fluctuates slightly, thereby improving the lighting effect.
Fig. 3 is a schematic structural diagram of another lamp body control circuit according to an embodiment of the present invention, and referring to fig. 3, optionally, the automatic control circuit 200 includes an automatic detection unit 210 and an automatic control unit 220;
the input end of the automatic detection unit 210 is electrically connected to the second selection end Q13 of the mode switch Q1, and the output end of the automatic detection unit 210 is electrically connected to the second end B2 of the control module 100;
the input end of the automatic control unit 220 is electrically connected to the third end B3 of the control module 100, the output end of the automatic control unit 220 is electrically connected to the lamp body L1, and the control module 100 is configured to control the automatic control unit 220 to turn on or turn off the lamp body L1 according to the first automatic control signal when receiving the second automatic control signal output by the output end of the automatic detection unit 210.
The output terminal of the automatic detection unit 210 serves as the first output terminal U1 of the automatic control circuit 200, the input terminal of the automatic control unit 220 serves as the control terminal G of the automatic control circuit 200, and the output terminal of the automatic control unit 220 serves as the second output terminal U2 of the automatic control circuit 200.
After the common terminal Q11 of the mode switch Q1 is connected to the second selection terminal Q13, the output terminal of the automatic detection unit 210 outputs a high level, and after the common terminal Q11 of the mode switch Q1 is disconnected from the second selection terminal Q13, the output terminal of the automatic detection unit 210 outputs a low level.
When the second terminal B2 of the control module 100 inputs a high level, and the first automatic control signal output by the output terminal of the light collection circuit 300 is less than or equal to the set threshold, the third terminal B3 of the control module 100 outputs a high level, and the automatic control unit 220 outputs a high level to the lamp body L1 after receiving the high level output by the third terminal B3, so that the lamp body L1 is lit. When the first automatic control signal output by the output terminal of the light collecting circuit 300 is greater than the set threshold, the third terminal B3 of the control module 100 outputs a low level, and the automatic control unit 220 outputs the low level to the lamp body L1 after receiving the low level output by the third terminal B3, so that the lamp body L1 is extinguished.
Fig. 4 is a schematic structural diagram of another lamp body control circuit according to an embodiment of the present invention, referring to fig. 4, optionally, the automatic detection unit 210 includes a first resistor R1 and a second resistor R2, a first end of the first resistor R1 is electrically connected to the second selection terminal Q13 of the mode switch Q1, a second end of the first resistor R1 is electrically connected to the second terminal B2 of the control module 100, a second end of the first resistor R1 is also electrically connected to the first end of the second resistor R2, and a second end of the second resistor R2 is grounded to GND.
When the common terminal Q11 of the mode switch Q1 is not connected to the second selection terminal Q13 thereof, the potential of the second terminal of the first resistor R1 is pulled to the ground potential, so that the second terminal B2 of the control module 100 inputs a low level. When the common terminal Q11 of the mode switch Q1 is connected to the second selection terminal Q13, the voltage at the second terminal of the first resistor R1 is equal to the voltage of the first power source 400 divided by the second resistor R2 connected in series with the first resistor R1, so that the second terminal of the first resistor R1 is pulled high, and the second terminal B2 of the control module 100 inputs high.
With continued reference to fig. 4, optionally, the automatic control unit 220 includes a first switch tube T1, a second switch tube T2, a diode D1;
the control end of the first switch tube T1 is electrically connected to the third end B3 of the control module 100, the first end of the first switch tube T1 is electrically connected to the control end of the second switch tube T2, the second end of the first switch tube T1 is grounded GND, the first end of the second switch tube T2 is electrically connected to the second power supply 500, the second end of the second switch tube T2 is electrically connected to the positive end of the diode D1, and the negative end of the diode D1 is electrically connected to the lamp body L1.
Optionally, an eighth resistor R8 is connected between the third terminal B3 of the control module 100 and the control terminal of the first switching tube T1, and the eighth resistor R8 may reduce the voltage transmitted to the control terminal of the first switching tube T1, so as to avoid breakdown of the first switching tube T1 due to an excessive voltage and damage to the device. A ninth resistor R9 is connected between the first end of the first switching tube T1 and the control end of the second switching tube T2, and a tenth resistor R10 is connected between the first end of the second switching tube T2 and the control end thereof.
Optionally, the first switch transistor T1 is an NPN transistor, and the second switch transistor T2 is a PNP transistor. The base of the NPN transistor serves as the control terminal of the first switch transistor T1, the collector of the NPN transistor serves as the first terminal of the first switch transistor T1, and the emitter of the NPN transistor serves as the second terminal of the first switch transistor T1. The base of the PNP transistor serves as the control terminal of the second switch transistor T2, the collector of the PNP transistor serves as the second terminal of the second switch transistor T2, and the emitter of the PNP transistor serves as the first terminal of the second switch transistor T2. The second power source 500 may be a battery pack, and illustratively, the second power source 500 may be the same power source as the first power source 400. When the third terminal B3 of the control module 100 outputs a high level, the first switch tube T1 is turned on, after the first switch tube T1 is turned on, the control terminal of the second switch tube T2 is pulled to a low potential, so that the second switch tube T2 is turned on, after the second switch tube T2 is turned on, the second power supply 500 supplies power to the lamp body L1 through the second switch tube T2 and the diode D1, so that the lamp body L1 is turned on. When the third terminal B3 of the control module 100 outputs a low level, the first switching tube T1 is turned off, the voltage at the control terminal of the second switching tube T2 is pulled to a high potential by the second power supply 500, the second switching tube T2 is turned off, and the second power supply 500 cannot provide electric energy to the lamp body L1, so that the lamp body L1 is turned off.
With continued reference to fig. 4, optionally, the automatic control unit 220 further includes a short-circuit protection subunit, the short-circuit protection subunit includes a third resistor R3 and a fourth resistor R4, a first end of the third resistor R3 is electrically connected to a second end of the second switch transistor T2, a second end of the third resistor R3 is electrically connected to the fourth end B4 of the control module 100, a second end of the third resistor R3 is further electrically connected to a first end of the fourth resistor R4, and a second end of the fourth resistor R4 is grounded to GND; the short-circuit protection subunit is used for generating a short-circuit signal when the lamp body L1 is short-circuited;
the control module 100 is configured to control the first switch tube T1 to turn off according to the short-circuit signal.
The short-circuit signal is a level signal, and in this embodiment, the short-circuit signal is at a low level. After lamp body L1 is lighted, during normal work, the second end of third resistance R3 is high level, lamp body L1 is by the short circuit after, the second end of third resistance R3 is low level, control module 100 receives its fourth end B4 input when being low level, export low level through its third end B3, turn off first switch tube T1, and then the circuit when with lamp body L1 automatic control cuts off, cause the damage to other devices in the circuit when avoiding the short circuit.
With reference to fig. 4, optionally, the light collecting circuit 300 includes at least one light acquiring unit 310, a first end of the light acquiring unit 310 is electrically connected to the third power supply 600, and a second end of the light acquiring unit 310 is grounded to GND;
the light acquiring unit 310 includes a fifth resistor R5 and a photosensor D2, a first end of the fifth resistor R5 is electrically connected to the third power supply 600, a second end of the fifth resistor R5 is electrically connected to the first end B1 of the control module 100, a second end of the fifth resistor R5 is further electrically connected to the first end of the photosensor D2, and a second end of the photosensor D2 is grounded to GND.
The light collection circuit 300 may include one light collection unit 310 or a plurality of light collection units, and in the embodiment, two light collection units 320 are exemplarily illustrated. The photosensitive element D2 may be a photosensitive resistor or a photosensitive diode, and optionally, the photosensitive element D2 is a photosensitive diode. The cathode of the photodiode serves as the first terminal of the photosensor D2, and the anode of the photodiode serves as the second terminal of the photosensor D2. The larger the light intensity of the light received by the photodiode, the larger the generated current, and the higher the potential of the second terminal of the fifth resistor R5.
It should be noted that when the lamp body L1 is automatically controlled, the voltage at the second terminal of the fifth resistor R5 of each light collection unit 310 is less than or equal to the set threshold for a time period greater than or equal to the set time period, and the third terminal B3 of the control module 100 outputs a high level. The light collection circuit 300 comprises a plurality of light collection units 310 to ensure the accuracy of the obtained illumination intensity. The setting time can be set according to requirements and can be 2S. The threshold may be set according to the intensity of the light, for example, when the intensity of the light is less than 10 lux, it is required to light the lamp body L1, and when the voltage at the second end of the fifth resistor R5 is 2V at 10 lux, the threshold is set to 2V. That is, when the lamp body L1 is automatically controlled, the lamp body L1 is lit after the voltage at the second terminal of the fifth resistor R5 is less than or equal to 2V for 2S and 2S or more.
The working principle of the lamp body control circuit is as follows: when a user needs to manually control the lamp body L1, the common end Q11 of the mode switch Q1 is connected with the first selection end Q12 of the mode switch Q1, the manual control switch Q2 is closed, the first power supply 400 supplies power to the lamp body L1 through the common end Q11 of the mode switch Q1, the first selection end Q12 and the manual control switch Q2, and the lamp body L1 is lightened; the manual control switch Q2 is turned off, the manual control line between the first power source 400 and the lamp body L1 is cut off, and the lamp body L1 is turned off.
When the user needs to automatically control the lamp body L1, the common terminal Q11 of the mode switch Q1 is connected to the second selection terminal Q13, and at this time, the control mode of the lamp body L1 is switched to automatic control. The first power supply 400 inputs a high level to the second terminal B2 of the control module 100 through the first resistor R1. When the control module 100 receives that the second terminal B2 is at a high level, and when the voltage values input by the first terminal B1 of the control module are all less than or equal to a set threshold value for a time greater than or equal to a set time, the control module generates a high level and outputs the high level to the control terminal of the first switch tube T1 through the third terminal B3, so that the first switch tube T1 is turned on, the second switch tube T2 is turned on, and the second power supply 500 drives the lamp body L1 to light through the turned-on second switch tube T2 and the diode D1. When the control module 100 receives that the second terminal B2 is at a high level, and when the voltage value input from the first terminal B1 is greater than the set threshold value for a time greater than or equal to the set time, the control module generates a low level and outputs the low level to the control terminal of the first switching tube T1 through the third terminal B3, so as to turn off the first switching tube T1 and further turn off the second switching tube T2, the second power supply 500 cannot drive the lamp body L1, and the lamp body L1 is extinguished.
With continued reference to fig. 4, optionally, the lamp body control circuit further includes a lamp body state detection module 700 and an indicator light L2, the lamp body state detection module 700 includes a sixth resistor R6 and a seventh resistor R7;
a first end of the sixth resistor R6 is electrically connected to the lamp body L1, a second end of the sixth resistor R6 is electrically connected to a fifth end B5 of the control module 100, a second end of the sixth resistor R6 is also electrically connected to a first end of the seventh resistor R7, and a second end of the seventh resistor R7 is grounded to GND; the lamp body state detection module 700 is configured to generate a prompt signal according to the state of the lamp body L1;
the sixth end B6 of the control module 100 is electrically connected to the indicator light L2, and the control module 100 is configured to control the indicator light L2 to turn on or off according to the prompt signal.
The state of the lamp body L1 includes a lit state and an extinguished state, and when the lamp body L1 is in the lit state, the warning signal is at a high level, and when the lamp body L1 is in the extinguished state, the warning signal is at a low level.
When the lamp body L1 is in the manual control mode, the lamp body L1 is turned on, the potential of the second terminal of the sixth resistor R6 is at the high level, and when the control module 100 inputs the high level to the fifth terminal B5, the control module outputs the high level to the sixth terminal B6, and the indicator lamp L2 is driven to be turned on. When the lamp body L1 goes out, the potential of the second end of the sixth resistor R6 is pulled to the ground potential, so that the potential of the second end of the sixth resistor R6 is at a low level, and when the control module 100 inputs a low level at the fifth end B5 thereof, the control module outputs a low level at the sixth end B6 thereof, so as to turn off the indicator light L2. When the lamp body control circuit is applied to an electric vehicle, the indicator lamp L2 may be disposed at an instrument end of the electric vehicle, and a user determines whether the lamp body L1 is turned on or off by turning on or off the indicator lamp L2. When the light is better in the daytime, the lamp body L1 is lighted, and the user cannot know that the lamp body L1 is opened through the light of the lamp body L1, or waste of electric energy is caused. After the indicator light L2 is arranged, a user can directly know the state of the lamp body L1 from the instrument panel and turn off the lamp body L1 when the lamp body L1 does not need to be turned on, and waste of electric energy is avoided.
The embodiment of the utility model also provides an electric vehicle which comprises the lamp body control circuit in any embodiment of the embodiment.
The electric motor car that this embodiment provided can realize the free switching of automatic control lamp body and manual control lamp body, and the user of being convenient for freely selects the control mode of lamp body, provides bigger convenience for the user.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (11)
1. A lamp body control circuit is characterized by comprising a control module, a mode switch, an automatic control circuit, a manual control switch, a light ray acquisition circuit and a lamp body;
a common end of the mode selector switch is electrically connected with a first power supply, a first selection end of the mode selector switch is electrically connected with a first end of the manual control switch, and a second selection end of the mode selector switch is electrically connected with an input end of the automatic control circuit;
the second end of the manual control switch is electrically connected with the lamp body;
the output end of the light ray acquisition circuit is electrically connected with the first end of the control module, and the light ray acquisition circuit is used for generating a first automatic control signal according to the light ray intensity;
the second end of the control module is electrically connected with the first output end of the automatic control circuit, the third end of the control module is electrically connected with the control end of the automatic control circuit, the second output end of the automatic control circuit is electrically connected with the lamp body, and the automatic control circuit is used for generating a second automatic control signal when the common end of the mode selector switch is electrically connected with the second selection end of the mode selector switch;
and the control module is used for controlling the lamp body to be lightened or extinguished according to the first automatic control signal when receiving the second automatic control signal.
2. The lamp body control circuit according to claim 1, wherein the automatic control circuit comprises an automatic detection unit and an automatic control unit;
the input end of the automatic detection unit is electrically connected with the second selection end of the mode selector switch, and the output end of the automatic detection unit is electrically connected with the second end of the control module;
the input end of the automatic control unit is electrically connected with the third end of the control module, the output end of the automatic control unit is electrically connected with the lamp body, and the control module is used for controlling the automatic control unit to light or extinguish the lamp body according to the first automatic control signal when receiving the second automatic control signal output by the output end of the automatic detection unit.
3. The lamp body control circuit according to claim 2, wherein the automatic detection unit comprises a first resistor and a second resistor, a first end of the first resistor is electrically connected to the second selection terminal of the mode switch, a second end of the first resistor is electrically connected to the second terminal of the control module, a second end of the first resistor is further electrically connected to the first end of the second resistor, and a second end of the second resistor is grounded.
4. The lamp body control circuit of claim 3, wherein the automatic control unit comprises a first switch tube, a second switch tube, a diode;
the control end of the first switch tube is electrically connected with the third end of the control module, the first end of the first switch tube is electrically connected with the control end of the second switch tube, the second end of the first switch tube is grounded, the first end of the second switch tube is electrically connected with the second power supply, the second end of the second switch tube is electrically connected with the positive end of the diode, and the negative end of the diode is electrically connected with the lamp body.
5. The lamp body control circuit of claim 4, wherein the first switching transistor is an NPN transistor and the second switching transistor is a PNP transistor.
6. The lamp body control circuit according to claim 4, wherein the automatic control unit further comprises a short-circuit protection subunit, the short-circuit protection subunit comprises a third resistor and a fourth resistor, a first end of the third resistor is electrically connected to the second end of the second switch tube, a second end of the third resistor is electrically connected to the fourth end of the control module, a second end of the third resistor is further electrically connected to the first end of the fourth resistor, and a second end of the fourth resistor is grounded; the short-circuit protection subunit is used for generating a short-circuit signal when the lamp body is short-circuited;
the control module is used for controlling the first switching tube to be switched off according to the short-circuit signal.
7. The lamp body control circuit according to claim 1, wherein the light collection circuit comprises at least one light acquisition unit, a first end of the light acquisition unit is electrically connected to a third power supply, and a second end of the light acquisition unit is grounded;
the light acquisition unit comprises a fifth resistor and a photosensitive element, the first end of the fifth resistor is electrically connected with the third power supply, the second end of the fifth resistor is electrically connected with the first end of the control module, the second end of the fifth resistor is also electrically connected with the first end of the photosensitive element, and the second end of the photosensitive element is grounded.
8. The lamp body control circuit of claim 7, wherein the photosensitive element is a photodiode.
9. The lamp body control circuit according to claim 1, further comprising a lamp body state detection module and an indicator light, wherein the lamp body state detection module comprises a sixth resistor and a seventh resistor;
a first end of the sixth resistor is electrically connected with the lamp body, a second end of the sixth resistor is electrically connected with a fifth end of the control module, a second end of the sixth resistor is also electrically connected with a first end of the seventh resistor, and a second end of the seventh resistor is grounded; the lamp body state detection module is used for generating a prompt signal according to the state of the lamp body;
and the sixth end of the control module is electrically connected with the indicator lamp, and the control module is used for controlling the indicator lamp to be turned on or turned off according to the prompt signal.
10. The lamp body control circuit according to claim 1, further comprising a lamp body driving module, wherein the lamp body driving module comprises a constant current source, an input end of the constant current source is electrically connected to the second end of the manual control switch, an input end of the constant current source is further electrically connected to the second output end of the automatic control circuit, and an output end of the constant current source is electrically connected to the lamp body.
11. An electric vehicle characterized by comprising the lamp body control circuit according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122112324.2U CN216391485U (en) | 2021-09-02 | 2021-09-02 | Lamp body control circuit and electric motor car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122112324.2U CN216391485U (en) | 2021-09-02 | 2021-09-02 | Lamp body control circuit and electric motor car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216391485U true CN216391485U (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122112324.2U Active CN216391485U (en) | 2021-09-02 | 2021-09-02 | Lamp body control circuit and electric motor car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216391485U (en) |
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2021
- 2021-09-02 CN CN202122112324.2U patent/CN216391485U/en active Active
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