CN213534621U - Touch starting circuit of electric car and electric car - Google Patents
Touch starting circuit of electric car and electric car Download PDFInfo
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- CN213534621U CN213534621U CN202022156615.7U CN202022156615U CN213534621U CN 213534621 U CN213534621 U CN 213534621U CN 202022156615 U CN202022156615 U CN 202022156615U CN 213534621 U CN213534621 U CN 213534621U
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Abstract
The embodiment of the utility model discloses trolley-bus touch starting circuit and trolley-bus, the circuit includes: a power supply unit; the power supply end of the processing unit is connected with the power supply signal output end of the power supply unit through a diode; the touch sensing unit is connected with the processing unit and generates a touch sensing signal when sensing touch and sends the touch sensing signal to the processing unit; the first end of the first control switch unit is connected with the power signal output end and the anode of the diode, the control end of the first control switch unit is connected with the processing unit, and the second end of the first control switch unit is grounded; the processing unit outputs a signal with a set duty ratio to the control end of the first control switch unit after receiving the touch sensing signal; and the signal detection unit is connected with the power supply signal output end and controls and conducts the electric car door lock circuit to complete the starting of the electric car after continuously detecting multiple voltage signal jumps. The embodiment of the utility model provides a technical scheme has simplified the circuit, the cost is reduced.
Description
Technical Field
The embodiment of the utility model provides a relate to trolley-bus technical field, especially relate to a trolley-bus touch starting circuit and trolley-bus.
Background
The one-key starting of the electric vehicle can adopt a key type or touch one-key starting.
However, the problems of water inflow, misoperation, circuit damage caused by dust inflow and the like easily occur in the key type. The touch one-key starting can avoid the problems of water inflow, misoperation, dust entering, circuit damage and the like, but the touch one-key starting in the prior art needs to lead out a plurality of lines from an alarm of the electric car to a starting instrument to realize the touch starting function of the electric car, the touch starting circuit of the electric car is complex, and the cost is increased.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an electric car touch starting circuit and electric car to simplify the circuit, reduce cost.
In a first aspect, an embodiment of the present invention provides a trolley-bus touch start circuit, include:
the power supply unit is arranged in the trolley bus alarm;
a power supply end of the processing unit is connected with a power supply signal output end of the power supply unit through a diode,
the processing unit is connected with the touch sensing unit, and the touch sensing unit generates a touch sensing signal and sends the touch sensing signal to the processing unit when sensing touch;
a first end of the first control switch unit is connected with the power signal output end and the anode of the diode, a control end of the first control switch unit is connected with the processing unit, and a second end of the first control switch unit is grounded; the processing unit outputs a signal with a set duty ratio to the control end of the first control switch unit after receiving the touch sensing signal;
and the signal detection unit is connected with the power signal output end, detects the voltage signal of the power signal output end, and controls to switch on the electric car door lock circuit to complete the starting of the electric car after continuously detecting multiple voltage signal jumps.
Optionally, the power supply unit includes a power signal input terminal, a power signal output terminal, and a second control switch unit for controlling a conduction state between the power signal input terminal and the power signal output terminal.
Optionally, the second control switch unit includes: the circuit comprises a first control switch, a second control switch, a first resistor, a second resistor, a third resistor and a fourth resistor;
a first end of the first resistor is used for inputting a control signal of the trolley alarm, and a second end of the first resistor is connected with a control end of the first control switch; a first pole of the first control switch is connected with a first end of the second resistor, and a second pole of the first control switch is grounded; the second end of the second resistor is connected with the first end of the third resistor and the control end of the second control switch; the power supply signal input end is connected with the second end of the third resistor and the first pole of the second control switch; a second pole of the second control switch is connected with a first end of the fourth resistor, and a second end of the fourth resistor is connected with the power supply signal output end;
and the first end of the first resistor inputs the control signal after the electric car alarm is disarmed.
Optionally, the method further includes: the first end of the light-emitting unit is connected with the power supply signal output end of the power supply unit, and the second end of the light-emitting unit is connected with the processing unit;
the light-emitting unit conducts on-off alternate change when the processing unit does not receive the touch sensing signal; the light-emitting unit is turned off when the processing unit receives the touch sensing signal; the light emitting unit is always on when the trolley start is completed.
Optionally, the light emitting unit includes a fifth resistor and a plurality of LED lamps connected in parallel, a first end of the fifth resistor is connected to the power signal output terminal, and a second end of the fifth resistor is connected to a common connection end of the first end of each of the LED lamps; the common connection end of the second end of each LED lamp is connected with the processing unit.
Optionally, the processing unit further comprises an energy storage unit, the energy storage unit is connected with a power end of the processing unit, and the energy storage unit supplies power to the processing unit when the first control switch unit is turned on.
Optionally, the energy storage unit includes a first capacitor, a first end of the first capacitor is connected to a power supply terminal of the processing unit, and a second end of the first capacitor is grounded.
Optionally, the filter further includes a filtering unit, the filtering unit includes a second capacitor, a first end of the second capacitor is connected to the power signal output end of the power supply unit, and a second end of the second capacitor is grounded.
Optionally, the touch sensing unit includes a touch key.
In a second aspect, an embodiment of the present invention provides an electric car, including any of the first aspect the touch start circuit of the electric car.
The embodiment of the utility model provides an electric car touch starting circuit and electric car, starting circuit includes: a power supply unit; the power supply end of the processing unit is connected with the power supply signal output end of the power supply unit through a diode; the processing unit is connected with the touch sensing unit, and the touch sensing unit generates a touch sensing signal and sends the touch sensing signal to the processing unit when sensing touch; the first end of the first control switch unit is connected with the power supply signal output end and the anode of the diode, the control end of the first control switch unit is connected with the processing unit, and the second end of the first control switch unit is grounded; the processing unit outputs a signal with a set duty ratio to the control end of the first control switch unit after receiving the touch sensing signal; and the signal detection unit is connected with the power signal output end, detects the voltage signal of the power signal output end, and controls to conduct the electric car door lock circuit to complete the starting of the electric car after continuously detecting multiple voltage signal jumps. The embodiment of the utility model provides a technical scheme, a voltage signal line through the power supply unit's of setting in the trolley-bus alarm power supply unit output is the processing unit power supply, can be in order to receive the touch-sensitive signal that the touch-sensitive unit produced behind the processing unit electrified voltage, and the jump of power supply unit output voltage is realized in the switching of control first control switch unit, the voltage signal of signal detection unit detection power supply signal output part control switches on trolley-bus electric door lock circuit and accomplishes the trolley-bus and start after jumping many times in succession. The touch starting function of the electric car can be completed through one voltage signal wire, so that the circuit is simplified, and the cost is reduced.
Drawings
Fig. 1 is a block diagram of a touch start circuit of an electric car according to an embodiment of the present invention;
fig. 2 is a circuit diagram of a touch start circuit of an electric car according to an embodiment of the present invention;
fig. 3 is a circuit diagram of another touch start circuit for an electric car according to an embodiment of the present invention;
fig. 4 is a schematic view illustrating a connection between an alarm and a one-key-activated meter according to an embodiment of the present invention;
fig. 5 is a circuit diagram of another touch start circuit for an electric car according to an embodiment of the present invention;
fig. 6 is a circuit diagram of another touch start circuit for an electric car according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a processing unit 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 invention and are not limiting of the invention. 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.
The embodiment of the utility model provides an electric car touch starting circuit, figure 1 is the utility model provides a pair of electric car touch starting circuit's that embodiment provides structural block diagram refers to figure 1, include:
the power supply unit 10 is arranged in the trolley bus alarm;
a processing unit 20, a power supply end of the processing unit 20 is connected with a power supply signal output end A of the power supply unit 10 through a diode D,
the processing unit 20 is connected with the touch sensing unit 30, and the touch sensing unit 30 generates a touch sensing signal and sends the touch sensing signal to the processing unit 20 when sensing a touch;
a first control switch unit 40, a first end of the first control switch unit 40 is connected to the power signal output end a and an anode of the diode D, a control end of the first control switch unit 40 is connected to the processing unit 20, and a second end of the first control switch unit 40 is grounded; the processing unit 20 outputs a signal with a set duty ratio to the control end of the first control switch unit 40 after receiving the touch sensing signal;
and the signal detection unit 50 is connected with the power supply signal output end A, and the signal detection unit 50 detects a voltage signal of the power supply signal output end A and controls to switch on the electric car door lock circuit to complete the starting of the electric car after continuously detecting multiple voltage signal jumps.
Specifically, the trolley touch start circuit may be partially disposed in the trolley alarm, and partially disposed in the one-key start meter of the trolley. The one-key touch starting of the electric car needs the matching of an electric car alarm and a one-key starting instrument. The power supply unit 10 in the touch start circuit of the electric car is arranged in the electric car alarm. After the alarm is disarmed, the power signal output end A of the power supply unit 10 can output voltage, and the power signal output end A of the power supply unit 10 is connected with a driving power end of the one-key starting instrument. The one-key starting instrument is provided with a processing unit 20, and the processing unit 20 can be a single chip microcomputer. The power supply end of the processing unit 20 is connected with the driving power supply end of the one-key starting instrument through a diode D, that is, the power supply end of the processing unit 20 is connected with the power signal output end a of the power supply unit 10 through a diode D, and the power supply unit 10 is used for providing working voltage for the processing unit 20. The cathode of the diode is connected with the power supply end of the processing unit 20, the anode of the diode D is connected with the power supply signal output unit of the power supply unit 10, and the diode D is used for unidirectionally conducting the power supply signal output end a of the power supply unit 10 and the power supply end of the processing unit 20.
The touch sensing unit 30 is connected to the processing unit 20, for example, the touch sensing unit 30 may be a touch key, and when a finger is placed on the touch key, the touch key senses the finger to generate a touch sensing signal and sends the touch sensing signal to the processing unit 20. The one-key starting instrument is also provided with a first control switch unit 40, a first end of the first control switch unit 40 is connected with the power signal output end A and the anode of the diode D, a control end of the first control switch unit 40 is connected with the processing unit 20, and a second end of the first control switch unit 40 is grounded. After receiving the touch sensing signal, the processing unit 20 continuously outputs a signal with a set duty ratio to the control terminal of the first control switch unit 40, so that the first control switch is turned on or off according to a set period. Since the second terminal of the first control unit is grounded, when the first control switch unit 40 is turned on, the potential of the power signal output terminal a of the power supply unit 10 is pulled low, and when the first control switch unit 40 is turned off, the potential of the power signal output terminal a of the power supply unit 10 is restored to the original potential, so that the voltage of the power signal output terminal a jumps according to the set period. The signal detection unit 50 is connected to the power signal output terminal a of the power supply unit 10, and the signal detection unit 50 can detect the voltage signal at the power signal output terminal a and control to turn on the electric car door lock circuit after detecting a plurality of voltage signal jumps continuously, thereby completing the starting of the electric car.
The embodiment of the utility model provides a technical scheme, a voltage signal line through the power supply unit's of setting in the trolley-bus alarm power supply unit output is the processing unit power supply, can be in order to receive the touch-sensitive signal that the touch-sensitive unit produced behind the processing unit electrified voltage, and the jump of power supply unit output voltage is realized in the switching of control first control switch unit, the voltage signal of signal detection unit detection power supply signal output part control switches on trolley-bus electric door lock circuit and accomplishes the trolley-bus and start after jumping many times in succession. The touch starting function of the electric car can be completed through one voltage signal wire, so that the circuit is simplified, and the cost is reduced.
Optionally, fig. 2 is a circuit diagram of a touch start circuit of an electric car according to an embodiment of the present invention, referring to fig. 2, the power supply unit 10 includes a power signal input terminal B, a power signal output terminal a, and a second control switch unit 11 for controlling a conduction state between the power signal input terminal and the power signal output terminal a.
Specifically, the power supply unit may be disposed on a circuit board of the integrated tram alarm, and the power supply unit 10 includes a power signal input terminal B, a power signal output terminal a, and a second control switch unit 11 that controls a conduction state between the power signal input terminal and the power signal output terminal a. The voltage input by the power signal input terminal B may be from a power supply inside the alarm or other power supply sources, which is not limited herein. When the alarm is disarmed, the alarm inputs a control signal to the control terminal E of the second control switch unit 11 to turn on the second control switch unit 11, so that the power signal input terminal B and the power signal output terminal a of the power supply unit are turned on, and the processing unit 20 starts to operate.
Alternatively, with continued reference to fig. 2, the second control switch unit 11 includes: a first control switch Q1, a second control switch Q2, a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4;
a first end of the first resistor R1 is input with a control signal of the tram alarm, and a second end of the first resistor R1 is connected with a control end of the first control switch Q1; a first pole of the first control switch Q1 is connected with a first end of the second resistor R2, and a second pole of the first control switch Q1 is grounded; a second end of the second resistor R2 is connected with a first end of the third resistor R3 and a control end of the second control switch Q2; the power supply signal input end B is connected with the second end of the third resistor R3 and the first pole of the second control switch Q2; a second pole of the second control switch Q2 is connected with a first end of a fourth resistor R4, and a second end of the fourth resistor R4 is connected with the power signal output end a;
the first terminal of the first resistor R1 inputs a control signal after the trolley alarm is disarmed.
Specifically, the first control switch Q1 and the second control switch Q2 in the second control switch unit 11 may be field effect transistors. For example, the first control switch Q1 is an N-type field effect transistor, the second control switch Q2 is a P-type field effect transistor, and after the electric car alarm is disarmed, the control terminal, i.e., the gate, of the first control switch Q1 can input a high-level control signal to turn on the first control switch. At this time, the power signal input terminal B, the third resistor R3, and the second resistor R2 are turned on and grounded through the first control switch Q1, the potential of the gate voltage of the second control switch Q2 is equal to the potential of the second terminal after voltage division by the second resistor R2, the resistance of the second resistor R2 can be set to be much smaller than the resistance of the third resistor R3, and it is ensured that the gate of the second control switch Q2 inputs a low-level control signal, so that the second control switch Q2 is turned on, and further the signal input terminal B of the power supply unit is turned on with the power signal output terminal a.
Optionally, with continued reference to fig. 2, the first control switch unit 40 includes a third control switch Q3, a sixth resistor R6, and a seventh resistor R7. A first terminal of the sixth resistor R6 is connected to the common terminal of the power signal output terminal a and the anode of the diode D, a second terminal of the sixth resistor R6 is connected to the first pole of the third control switch Q3, and the second pole of the third control switch Q3 is grounded. A gate of the third control switch Q3 is connected to a first terminal of the seventh resistor R7, and a second terminal of the seventh resistor R7 is connected to the processing unit 20. Namely, the second terminal of the seventh resistor R7 is the control terminal P _ Key of the first control switch unit 40 connected to the processing unit.
Optionally, fig. 3 is a circuit diagram of another trolley-bus touch start circuit provided in the embodiment of the present invention, referring to fig. 3, further including: a first end of the light emitting unit 70 is connected with the power signal output end a of the power supply unit 10, and a second end P _ Led of the light emitting unit 70 is connected with the processing unit 20;
the light emitting unit 70 performs on-off alternate change when the processing unit 20 does not receive the touch sensing signal; the light emitting unit 70 is turned off when the processing unit 20 receives the touch sensing signal; the light emitting unit 70 is always on when the trolley start is completed.
Specifically, the touch start circuit of the electric car further includes a light emitting unit 70, a first end of the light emitting unit 70 is connected to the power signal output end a of the power supply unit 10, and a second end of the light emitting unit 70 is connected to the processing unit 20. The light emitting unit 70 may perform different light emitting reminders at different stages during the start-up of the electric train. After the alarm is disarmed, the power supply unit 10 outputs a voltage from the power signal output terminal a, and after the voltage is input to the first terminal of the light emitting unit 70, the potential of the second terminal connected to the processor can be adjusted by the processing unit, so that the voltage difference between the first terminal and the second terminal P _ Led of the light emitting unit 70 can drive the light emitting unit 70 to emit light. The potential of the second terminal P _ Led of the light emitting unit 70 may be set to be changed in high and low at a certain period, so that the light emitting lamp is turned on and off alternately. Meanwhile, the frequency of the high and low changes can be adjusted to make the light emitting unit 70 change alternately to become brighter and darker. When the processing unit 20 receives the touch sensing signal generated by the touch sensing unit 30, the processing unit 20 controls the voltage level of the second end P _ Led of the light emitting unit 70 to be the high voltage level, and the light emitting unit 70 is in the normally off state. When the electric door lock circuit of the electric train is turned on, the processing unit 20 can detect that the electric door lock wire is powered on, the processing unit 20 controls the potential of the second end P _ Led of the light emitting unit 70 to be a low potential, and the light emitting unit 70 is in a normally on state. The power supply of the light-emitting unit 70 is also from the power supply signal output end a of the power supply unit 10, and the functions of light prompting and touch starting can be realized through one power supply signal wire output by the power supply signal output end a, so that a plurality of power supply signal wires do not need to be additionally led out from the alarm, the circuit is further simplified, and the cost is reduced.
Optionally, with continued reference to fig. 3, the light emitting unit 70 includes a fifth resistor R5 and a plurality of LED lamps connected in parallel, a first end of the fifth resistor R5 is connected to the power signal output terminal a, and a second end of the fifth resistor R5 is connected to the common connection terminal of the first end of each LED lamp; the common connection of the second ends of each LED lamp is connected to the processing unit 20.
It should be noted that, because the LED lamp has a voltage drop, when the current flowing through the LED lamp is larger, the voltage drop of the LED lamp is larger, and the voltage divided by the fourth resistor R4 is also larger, which results in that the voltage output by the power signal output terminal a becomes smaller. Because the processing unit 20 has the lowest operating voltage limit, when the voltage output from the power signal output terminal a is less than the operating voltage of the voltage processing unit 20, the processor cannot operate normally. Therefore, the resistance values of the fourth resistor R4 and the sixth resistor R6 need to be adjusted to ensure that the voltage output by the power signal output terminal a can meet the voltage requirement for normal operation of the processing unit 20 when the light emitting unit 70 emits light to the brightest. Illustratively, the lowest operating voltage of the single chip microcomputer included in the processing unit 20 is 3.5V, and at this time, if the voltage input at the power signal input end is 5V, the resistances of the fourth resistor R4 and the sixth resistor R6 are both 100 Ω, so that the normal operation of the processing unit 20 can be ensured.
Exemplarily, fig. 4 is a schematic diagram of a connection between an alarm and a one-touch start meter provided by an embodiment of the present invention, referring to fig. 3-4, after the alarm 100 is unlocked (the alarm 100 can be unlocked by a handle or by sensing that a user approaches to unlocking of a trolley), the alarm 100 outputs a one-touch start 5V power through a power signal output terminal a, and a breathing light 71 around a touch key 31 indicates breathing. At this time, after the user touches the touch Key 31, the touch Key 31 generates a touch sensing signal, and the processing unit 20 in the one-Key starting meter 200 sends a low-level signal of 10ms once every 20ms to the control terminal P _ Key connected to the first control switch unit 40 and the processing unit 20, so that the voltage at the power signal output terminal a jumps according to the set period. The signal detection unit 50 is connected to the power signal output end a of the power supply unit 10, and the signal detection unit 50 can detect a voltage signal at the power signal output end a, and determine whether the detected voltage signal jump frequency reaches a set frequency for controlling the start of the electric car, and if not, continue to send a 10ms low level signal once every 20ms to the control end P _ Key of the first control switch unit 40; and if the set times are reached, the electric door lock is switched on to complete the electrification of the whole vehicle. The processing unit 20 can detect that the electric door lock wire is powered on, control the potential of the second end P _ Led of the breathing lamp 71 to be a low potential, so that the breathing lamp 71 is in a normally on state, and stop sending a low level signal to the control end P _ Key of the first control switch unit 40.
In the on state of the electric train, a user touches the touch Key 31, the touch Key 31 generates a touch sensing signal, the processing unit 20 in the one-Key starting instrument 200 sends a low-level signal of 10ms to the control terminal P _ Key connected with the first control switch unit 40 and the processing unit every 20ms, and therefore the voltage of the power supply signal output end a jumps according to a set period. The signal detection unit 50 is connected to the power signal output end a of the power supply unit 10, and the signal detection unit 50 can detect a voltage signal at the power signal output end a, and determine whether the detected voltage signal jump frequency reaches a set frequency for controlling the turning off of the electric vehicle, and if not, continue to send a 10ms low level signal once every 20ms to the control end P _ Key of the first control switch unit 40; if the set times are reached, the alarm 100 closes the electric door lock to complete the power-off of the whole vehicle. After the processing unit 20 detects that the electric door lock wire is not powered on, the respiration lamp 71 is controlled to give a respiration instruction, and the sending of the low level signal to the control terminal P _ Key of the first control switch unit 40 is stopped. After the alarm 100 is set up (set up by the handle set up key or the user is away from the automatic set up), the 5V power supply started by one key is turned off, and the breathing lamp 71 is turned off.
Optionally, fig. 5 is a circuit diagram of another touch start circuit of an electric car according to an embodiment of the present invention, referring to fig. 5, which further includes an energy storage unit, the energy storage unit is connected to the power end of the processing unit 20, and the energy storage unit supplies power to the processing unit 20 when the first control switch unit 40 is turned on.
Specifically, when the first control switch unit 40 is turned on, the potential of the power signal output terminal a is pulled low, and cannot provide a voltage for the normal operation of the processing unit 20. At this time, the processing unit 20 may be powered by the provided energy storage unit. In addition, when the light emitting unit 70 emits light in an alternating manner, if the voltage at the power signal output terminal a of the light emitting unit 70 is reduced in the gradual variation process, the energy storage unit may supply power to the processing unit 20, so as to further ensure the voltage requirement for the normal operation of the processing unit 20. Optionally, the energy storage unit includes a first capacitor C1, a first terminal of the first capacitor C1 is connected to the power supply terminal of the processing unit 20 and the common terminal of the cathode of the diode D, and a second terminal of the first capacitor C1 is grounded.
Optionally, fig. 6 is a circuit diagram of another electric car touch start circuit provided by the embodiment of the present invention, referring to fig. 6, further including a filtering unit, where the filtering unit includes a second capacitor C2, a first end of the second capacitor C2 is connected to the power signal output end a of the power supply unit 10, and a second end of the second capacitor C2 is grounded. The second capacitor C2 is used for filtering the voltage outputted from the power signal output terminal a.
For example, fig. 7 is a schematic structural diagram of a processing unit according to an embodiment of the present invention, and referring to fig. 7, the processing unit is a single chip microcomputer, and the model may be "ES 7P003 FGTF". The third port 3 is connected to the control terminal P _ Key of the first control switch unit, and the fourth port 4 is connected to the second terminal P _ Led of the light emitting unit. The ninth port 9 is connected to the power supply unit 10 via a diode D, and the ninth port 9 is further connected to a first capacitor C1 in the energy storage unit. The fourteenth port 14 is connected to the signal detection unit 50. The other ports are the conventional setting unit ports of the processing unit. For example, referring to fig. 5, when the alarm is disarmed, the control terminal E of the second control switch unit 11 inputs a control signal to turn on the second control switch unit 11, so as to turn on the power signal input terminal B and the power signal output terminal a of the power supply unit, and the processing unit 20 starts to operate. When there is no touch signal, the processing unit 20 drives the LEDs in the light emitting unit 70 to illuminate for breathing by controlling the second end P _ Led of the light emitting unit; when a finger presses a touch Key in the touch sensing unit 50, the processing unit 20 controls the P _ Led end of the second end of the light emitting unit to be turned off, and outputs a square wave signal with a certain continuous duty ratio to the P _ Key end of the control end of the first control switch unit, so that the potential of the power signal output end a jumps; the signal detection unit 50 detects a voltage signal at the power signal output terminal a, and controls to turn on the electric car door lock circuit after detecting a plurality of voltage signal jumps continuously, thereby completing the starting of the electric car. When the processing unit 20 detects that the electric door lock wire is powered on, the second end P _ Led of the light emitting unit is controlled to be at a low level, so that the Led lamp is normally on to complete the whole one-key starting process.
The embodiment of the utility model provides a still provide an electric car, including above-mentioned arbitrary embodiment the touch starting circuit of electric car, have the same technological effect, no longer give consideration to here again.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. 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 invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. An electric car touch start circuit, comprising:
the power supply unit is arranged in the trolley bus alarm;
a power supply end of the processing unit is connected with a power supply signal output end of the power supply unit through a diode,
the processing unit is connected with the touch sensing unit, and the touch sensing unit generates a touch sensing signal and sends the touch sensing signal to the processing unit when sensing touch;
a first end of the first control switch unit is connected with the power signal output end and the anode of the diode, a control end of the first control switch unit is connected with the processing unit, and a second end of the first control switch unit is grounded; the processing unit outputs a signal with a set duty ratio to the control end of the first control switch unit after receiving the touch sensing signal;
and the signal detection unit is connected with the power signal output end, detects the voltage signal of the power signal output end, and controls to switch on the electric car door lock circuit to complete the starting of the electric car after continuously detecting multiple voltage signal jumps.
2. The trolley touch start circuit according to claim 1,
the power supply unit comprises a power signal input end, a power signal output end and a second control switch unit for controlling the conduction state between the power signal input end and the power signal output end.
3. The trolley touch start circuit according to claim 2, wherein the second control switch unit includes: the circuit comprises a first control switch, a second control switch, a first resistor, a second resistor, a third resistor and a fourth resistor;
a first end of the first resistor is used for inputting a control signal of the trolley alarm, and a second end of the first resistor is connected with a control end of the first control switch; a first pole of the first control switch is connected with a first end of the second resistor, and a second pole of the first control switch is grounded; the second end of the second resistor is connected with the first end of the third resistor and the control end of the second control switch; the power supply signal input end is connected with the second end of the third resistor and the first pole of the second control switch; a second pole of the second control switch is connected with a first end of the fourth resistor, and a second end of the fourth resistor is connected with the power supply signal output end;
and the first end of the first resistor inputs the control signal after the electric car alarm is disarmed.
4. The trolley touch start circuit according to claim 1, further comprising: the first end of the light-emitting unit is connected with the power supply signal output end of the power supply unit, and the second end of the light-emitting unit is connected with the processing unit;
the light-emitting unit conducts on-off alternate change when the processing unit does not receive the touch sensing signal; the light-emitting unit is turned off when the processing unit receives the touch sensing signal; the light emitting unit is always on when the trolley start is completed.
5. The touch start circuit for a tram according to claim 4, wherein said light emitting unit 70 comprises a fifth resistor and a plurality of LED lamps connected in parallel, a first end of said fifth resistor is connected to said power signal output terminal, and a second end of said fifth resistor is connected to a common connection terminal of a first end of each of said LED lamps; the common connection end of the second end of each LED lamp is connected with the processing unit.
6. The touch start circuit for electric cars of claim 1, further comprising an energy storage unit connected to a power supply terminal of the processing unit, the energy storage unit powering the processing unit when the first control switch unit is turned on.
7. The trolley touch start circuit according to claim 6, wherein the energy storage unit comprises a first capacitor, a first terminal of the first capacitor is connected to the power supply terminal of the processing unit, and a second terminal of the first capacitor is grounded.
8. The trolley touch start circuit according to claim 1, further comprising a filter unit, wherein the filter unit includes a second capacitor, a first end of the second capacitor is connected to the power signal output terminal of the power supply unit, and a second end of the second capacitor is grounded.
9. The trolley touch start circuit according to claim 1, wherein the touch sensing unit includes a touch key.
10. An electric car comprising the electric car touch start circuit according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022156615.7U CN213534621U (en) | 2020-09-27 | 2020-09-27 | Touch starting circuit of electric car and electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022156615.7U CN213534621U (en) | 2020-09-27 | 2020-09-27 | Touch starting circuit of electric car and electric car |
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