Disclosure of Invention
In view of the above problems, the present application provides a door power supply circuit, a door and a vehicle, which can supply power to a door motor even when an electric control system of the door fails due to accident of the vehicle, so that a door handle can be ejected smoothly, and the safety of the vehicle is improved.
The embodiment of the application is realized by adopting the following technical scheme:
in a first aspect, the present application provides a door power supply circuit comprising a power supply, a power storage module, and a control assembly; the power supply is respectively connected with the power storage module and the control assembly and is used for supplying power to the power storage module and the control assembly; the first end of the control assembly is connected between the power supply and the power storage module, and the second end of the control assembly is connected with the vehicle door motor; the control assembly is used for controlling the power storage module to supply power to the vehicle door motor when the power supply stops supplying power to the power storage module.
In some embodiments, the power storage module comprises a capacitor and a voltage division unit connected in parallel, wherein a first end of the capacitor connected in parallel with the voltage division unit is connected between the power supply and a first end of the control assembly, and a second end of the capacitor connected in parallel is grounded.
Specifically, in some embodiments, the voltage dividing unit includes a first voltage dividing resistor and a second voltage dividing resistor connected in series; the control assembly comprises an electronic switch, the input end of the electronic switch is connected between the power supply and the first end of the power storage module, the output end of the electronic switch is connected with the vehicle door motor, the control end of the electronic switch is respectively connected between the power supply and the first voltage dividing resistor and the second voltage dividing resistor, and the first end of the power storage module is the first end of the capacitor and the voltage dividing unit after being connected in parallel; and the electronic switch is used for controlling the capacitor to supply power to the vehicle door motor when the power supply stops supplying power to the capacitor.
In some embodiments, the electronic switch includes a PNP transistor, an emitter of the PNP transistor is connected between the power supply and a first end of the voltage-dividing unit, a collector of the PNP transistor is connected with the door motor, a base of the PNP transistor is connected between the power supply and the first voltage-dividing resistor, and a base of the PNP transistor is connected between the first end of the voltage-dividing unit and the first end of the capacitor after the voltage-dividing unit is connected in parallel.
In some embodiments, the capacitance is a faraday capacitance.
In some embodiments, the door power supply circuit further comprises a protection unit, one end of the protection unit is connected with the power supply, and the other end of the protection unit is connected between the power storage module and the control assembly.
In some embodiments, the protection unit includes a diode having an anode connected to the power supply and a cathode connected between the power storage module and the control assembly.
In a second aspect, the present application further provides a vehicle door, which includes a vehicle door body, a vehicle door motor disposed on the vehicle door body, and the vehicle door power supply circuit.
In some embodiments, a handle is rotatably disposed on the door body, and the door motor is configured to drive the handle to rotate.
In a third aspect, the present application further provides a vehicle, including the vehicle body and the door described above.
The vehicle door power supply circuit comprises a power supply source, a power storage module and a control assembly, wherein the power supply source is respectively connected with the power storage module and the control assembly, so that the power supply source supplies power to the power storage module and the control assembly; the first end of the control assembly is connected between the power supply and the power storage module, and the second end of the control assembly is connected with the vehicle door motor; the control component is used for controlling the power storage module to supply power to the vehicle door motor when the power supply stops supplying power to the power storage module; by adopting the vehicle door power supply circuit, the power supply source can charge the power storage module during normal operation, so that the power storage module stores electric energy; therefore, when the power supply is damaged and cannot supply power to the door motor, the control assembly can control the power storage module to supply power to the door motor, and then the door motor can be normally started under the condition that the power supply is damaged, so that the door can be opened conveniently, and the safety of an automobile is effectively improved.
These and other aspects of the present application will be more readily apparent from the following description of the embodiments.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In order to better understand the technical solutions of the present application, the following will make a clear and complete description of the technical solutions of the embodiments of the present application with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
With the development of the automobile industry, particularly the rapid development of electric automobiles, automobiles are continuously improved in performance and appearance. The existing electric automobile often comprises two power supplies, namely a low-voltage storage battery and a power battery, wherein the low-voltage storage battery is used for supplying power to all low-voltage systems on the automobile and providing communication signals, and the high-voltage battery is mainly used for supplying power to high-voltage equipment on the automobile. In the embodiment of the present application, the power supply V mainly refers to a low-voltage battery.
Currently, in order to make the automobile more attractive, a hidden door handle is often adopted, namely, the door handle is hidden in the automobile door when not in use, and is ejected or rotated out from the automobile door when in use. The door handle is ejected or rotated mainly by the driving of a motor of the vehicle door; however, when the accident happens to the vehicle, the power supply of the vehicle is easy to damage, so that the power supply cannot drive the door motor, the door handle cannot pop out, the door cannot be opened, personnel in the vehicle cannot be timely rescued, valuable rescue time is wasted, and the life safety of the personnel in the vehicle is greatly threatened.
In order to solve the problem, the application provides a door power supply circuit, door and vehicle, can be when power supply damages, through the power storage module to door motor power supply for the door motor drives the popping out of door handle, and the door of being convenient for opens.
Embodiments of the present application will be described below with reference to the accompanying drawings.
As shown in fig. 1, fig. 1 is a schematic block diagram of a power supply circuit for a vehicle door according to an embodiment of the present application. The door power circuit includes a power supply V, a power storage module 110, and a control assembly 120.
The power supply V is respectively connected with the power storage module 110 and the control component 120 and is used for supplying power to the power storage module 110 and the control component 120; the first end of the control assembly 120 is connected between the power supply V and the power storage module 110, and the second end is connected with the vehicle door motor M; the control component 120 is configured to control the power storage module 110 to supply power to the door motor M when the power supply V stops supplying power to the power storage module 110.
The power supply V can be a low-voltage storage battery of an automobile or an external power supply; in the embodiment of the application, the power supply V is a low-voltage battery of an automobile.
It will be appreciated that in normal use of the vehicle, i.e. when the vehicle is not damaged, the low voltage battery is always powered, i.e. the power supply V is always powered.
The control unit 120 may be a device such as a controller, an electronic switch, or a relay, which can control the power storage module 110 to supply power to the door motor M when the power supply V stops supplying power to the power storage module 110.
The power storage module 110 may be a capacitor, a battery, or any device or apparatus that may be charged or discharged.
Specifically, when the power supply V supplies power to the power storage module 110 and the control component 120 normally, the power supply V-the control component 120-the door motor M forms a first loop; at this time, the door motor M may be turned on or off by controlling the door motor M through the first loop, or may be directly controlled by the power supply V through other control loops, which is not particularly limited herein; the power supply V-the power storage module 110 forms a second loop, and the power supply V supplies power to the power storage module 110 through the second loop, so that the power storage module 110 stores electric energy when the power supply V supplies power normally; after the power of the power storage module 110 is full, the power supply V no longer charges the power storage module 110.
It can be appreciated that the size of the energy storage capacity of the electricity storage module 110 determines the driving capability of the electricity storage module 110, and specifically, the larger the energy storage capacity of the electricity storage module 110, the stronger the driving capability of the electricity storage module 110.
When the power supply V is damaged, the power storage module 110, the control assembly 120 and the door motor M form a third loop, and the control assembly 120 controls the power storage module 110 to supply power to the door motor M through the third loop, so that the door motor M can still operate when the power supply V is damaged.
Through the vehicle door power supply circuit provided by the embodiment of the application, the power supply V always charges the power storage module 110 in the daily use process of the vehicle, and the power storage module 110 is kept in a full state; when the automobile is damaged and the power supply V is damaged, the power supply V stops supplying power to the power storage module 110, and the control assembly 120 controls the power storage module 110 to supply power to the automobile door motor M, so that the automobile door motor M can still operate in a damaged state of the power supply V, and the problems that under the condition that the power supply V is damaged, the automobile door handle cannot be popped up and the automobile door cannot be opened are solved, and the safety of the automobile is improved.
In some embodiments, the power storage module 110 includes a capacitor C and a voltage dividing unit connected in parallel, and a first end of the capacitor C connected in parallel with the voltage dividing unit is connected between the power supply V and a first end of the control component 120, and a second end of the capacitor C connected in parallel is grounded.
It will be appreciated that when the capacitor C is full, the power supply V stops charging the capacitor C and keeps the capacitor C full, and the capacitor C does not consume the energy of the power supply V.
Specifically, considering the electricity storage capability of the electricity storage module 110, in the embodiment of the present application, the capacitor C adopts a faraday capacitor (faraday capacitor is also called an electric double layer capacitor, a gold capacitor, and a supercapacitor, which are chemical elements developed from the seventh eighties of the last century), the supercapacitor stores energy by polarizing electrolyte, but does not undergo chemical reaction, and the energy storage process is reversible, and just because the supercapacitor can be repeatedly charged and discharged hundreds of thousands of times; by adopting the Farad capacitor, the electric energy storage capacity of the electric energy storage module 110 is greatly improved, the electric energy stored by the electric energy storage module 110 is ensured to drive the vehicle door motor M to operate, and the stability of a vehicle door power supply circuit is improved.
Further, in other embodiments, the storage capacity of the capacitor C may be further improved by connecting a plurality of capacitors C in parallel.
It can be understood that the amount of energy stored by the energy storage module 110 is related to the capacity of the capacitor C and the output voltage of the power supply V, so that when the capacitor C is selected, the voltage value of the power supply V, the withstand voltage value and the capacity of the capacitor C need to be comprehensively considered, and the capacitor C matched with the power supply V needs to be selected on the basis of ensuring the withstand voltage value of the capacitor C.
In some embodiments, the voltage dividing unit includes a first voltage dividing resistor R1 and a second voltage dividing resistor R2 connected in series; the control assembly 120 comprises an electronic switch, wherein the input end of the electronic switch is connected between the power supply V and the first end of the power storage module 110, the output end of the electronic switch is connected with the vehicle door motor M, the control end of the electronic switch is respectively connected between the power supply V and the first voltage dividing resistor R1 and the second voltage dividing resistor R2, and the first end of the power storage module 110 is a first end formed by connecting a capacitor C and a voltage dividing unit in parallel; the electronic switch is used for controlling the capacitor C to supply power to the vehicle door motor M when the power supply V stops supplying power to the capacitor C.
Specifically, a first end of the first voltage dividing resistor R1 is connected to the capacitor C and the power supply V, a second end of the first voltage dividing resistor R2 is connected to a first end of the second voltage dividing resistor R2, and a second end of the second voltage dividing resistor R2 is grounded.
It can be understood that when the power supply V supplies power normally, the voltages of the input end and the control end of the electronic switch are both the voltage of the power supply V; when the power supply V is damaged, the input end of the electronic switch is the voltage of the first end of the power storage module 110, that is, the voltage of the first end after the capacitor C and the voltage dividing unit are connected in parallel, and the control end of the electronic switch is the voltage division of the second voltage dividing resistor R2.
The voltage output by the power supply V is U, and when the power supply V supplies power normally, the voltages at the input end and the control end of the electronic switch are also U; when the power supply V is damaged, if the voltage of the capacitor C is U0, the voltage of the input terminal of the electronic switch is U0, and the voltage of the control terminal is U0×r2/(r1+r2).
It will be appreciated that the voltage dividing unit may also include a third voltage dividing resistor, a fourth voltage dividing resistor, etc. connected in series with the first voltage dividing resistor R1 and the second voltage dividing resistor R2, i.e. the voltage dividing unit includes at least two voltage dividing resistors connected in series.
In some embodiments, the electronic switch includes a PNP transistor Q1, an emitter of the PNP transistor Q1 is connected between the power supply V and the first end of the power storage module 110, a collector is connected to the door motor M, and a base is connected between the power supply V, and the first voltage dividing resistor R1 and the second voltage dividing resistor R2, respectively.
The first end of the power storage module 110 is a first end of the capacitor C connected in parallel with the voltage dividing unit, that is, an end of the capacitor C connected in parallel with the first voltage dividing resistor R1.
It can be understood that when the power supply V supplies power normally, the voltages of the base and the emitter of the PNP transistor Q1 are the power supply V, no voltage difference exists between the base and the emitter, the PNP transistor Q1 is disconnected, and at this time, the loop between the power storage module 110 and the door motor M is in a disconnected state, and the power storage module 110 cannot supply power to the door motor M; when the power supply V is damaged or the power line is disconnected, the capacitor C-first voltage dividing resistor R1-second voltage dividing resistor R2 forms a loop, the voltage of the emitter electrode of the PNP triode Q1 is the capacitor C voltage U0, at the moment, the base voltage is U0 x R1/(R1+R 2), the PNP triode Q1 is conducted, the capacitor C-PNP triode Q1-door motor M forms a loop, the capacitor C supplies power to the door motor M, the door motor M is started to enable the door handle to pop out, and therefore the PNP triode Q1 is communicated when the power supply V is damaged due to the fact that an automobile is damaged, the capacitor C automatically supplies power to the door motor M, the door motor M is enabled to operate, and the door handle is automatically popped out.
In some embodiments, the door power circuit further includes a protection unit having one end connected to the power supply V and the other end connected between the power storage module 110 and the control assembly 120.
It is understood that the protection unit is used for protecting the door power supply circuit, thereby improving the stability of the door power supply circuit.
The protection unit may be a protection resistor, a fuse, or a diode D1, so long as the protection unit can protect the door power supply circuit, and the protection unit is not particularly limited and may be selected according to actual requirements.
In some embodiments, the protection unit includes a fuse connected in series between the power supply V and the power storage module 110; when the power supply circuit is excessively high in current due to short circuit or other reasons, the fuse is automatically fused, so that other components in the power supply circuit of the vehicle door are protected from being damaged.
In some embodiments, the protection unit includes a diode D1, an anode of the diode D1 is connected to the power supply V, and a cathode is connected between the power storage module 110 and the control assembly 120; when other external power sources are present, the diode D1 can prevent the current from flowing backward to damage the power supply V.
The circuit diagram of the vehicle door power supply circuit is shown in fig. 2, a power supply V is connected with an anode of a diode D1, a cathode of the diode D1 is connected with a first end of a capacitor C, a first end of a first voltage dividing resistor R1 resistor and an emitter of a PNP type triode Q1 respectively, a second end of the capacitor C is grounded, a second end of the first voltage dividing resistor R1 is connected with a first end of a second voltage dividing resistor R2 resistor, a second end of the second voltage dividing resistor R2 is grounded, a base of the PNP type triode Q1 is connected between the power supply V and the anode of the diode D1 respectively, and a collector of the PNP type triode Q1 is connected with a vehicle door motor M.
When the power supply V supplies power normally, the charging loop of the power supply V is shown in fig. 3, at this time, the voltages of the emitter and the base of the PNP transistor Q1 are both the voltage of the power supply V, the PNP transistor Q1 is turned off, the power supply V-second voltage dividing resistor R2 forms a loop, and the power supply V charges the capacitor C.
When the power supply V is damaged, the power supply loop of the power storage module 110 is shown in fig. 4, at this time, the capacitor C-the first voltage dividing resistor R1-the second voltage dividing resistor R2 form a loop, the voltage of the emitter of the PNP transistor Q1 is the voltage of the capacitor C, the voltage of the base is the voltage divided by the second voltage dividing resistor R2, and the PNP transistor Q1 is connected; meanwhile, a capacitor C-PNP triode Q1-vehicle door motor M forms a loop, and the capacitor C supplies power to the vehicle door motor M.
By adopting the vehicle door power supply circuit provided by the embodiment of the application, when the power supply V supplies power normally, the PNP triode Q1 is disconnected, the power supply V charges the capacitor C, and meanwhile, the capacitor C cannot supply power to the vehicle door motor M; when the power supply V is damaged, the PNP triode Q1 is communicated, and the capacitor C supplies power to the vehicle door motor M; the automatic discharging device has the advantages that when the power supply V is accidentally damaged, the capacitor C is automatically discharged, the problem that the door motor M cannot be started and the handle cannot be ejected due to the damage of the power supply V is solved, and the safety of an automobile is improved.
Fig. 5 is a schematic diagram of an application scenario of the door power supply circuit provided by the application, including a door power supply circuit, a control circuit and a door motor.
In the daily use process of the automobile, the automobile door power supply circuit does not directly supply power to the automobile door motor, but controls the automobile door motor through the control circuit; specifically, a power supply V in a door power supply circuit supplies power to a control circuit, and the control circuit controls a door motor so as to control a door handle to pop up or retract into a door; the control circuit can be a switch circuit or a control chip, and can control the motor of the vehicle door in a power supply state.
When the automobile is damaged due to accidents, the power supply V cannot supply power to the control circuit, the control circuit loses control over the door motor, and at the moment, the door power supply circuit supplies power to the door motor to enable the door motor to operate, and then the door handle is ejected from the door.
It can be appreciated that the door power supply circuit provided by the application is a redundant circuit, and is only started when the automobile is unexpected so that the power supply V cannot supply power, and the control circuit cannot control the door motor.
In a second aspect, the present application further provides a vehicle door, where the vehicle door includes a vehicle door body, a vehicle door motor disposed on the vehicle door body, and a vehicle door power supply circuit provided in the foregoing embodiment.
Further, a handle is rotatably arranged on the vehicle door body, and the vehicle door motor is used for driving the handle to rotate.
The door motor can be hidden in the door body or installed outside the door body, and the handle is driven to move through the transmission structure.
In other embodiments, the handle may also be slidably disposed on the door body, and the specific connection relationship between the handle and the door is not particularly limited herein, so long as it is capable of hiding the handle in the door body and removing the handle from the door body, so that the user opens the door through the removed portion.
In some embodiments, the handle is rotatably connected with the door body through the rotating shaft, the door body is provided with a containing cavity for hiding the handle, and the door motor is used for driving the rotating shaft to rotate, so that the handle is driven to move out of the containing cavity of the door body when the rotating shaft rotates, and a user can open the door through the moved-out part; when the handle is positioned in the accommodating cavity, the outer surface of the handle is flush with the outer surface of the vehicle door body, or the outer surface of the handle is concavely arranged on the outer surface of the vehicle door body, so that the handle is completely hidden.
In a third aspect, the present application also provides a vehicle, as in fig. 6, the vehicle 200 includes a vehicle body 210 and a door 220 in the foregoing embodiment. When the vehicle 200 is running normally, the handle is hidden in the door body, so that the appearance of the vehicle 200 is more attractive, and the resistance in the running process of the vehicle 200 is reduced.
The vehicle 200 may be a vehicle using conventional energy sources such as gasoline and diesel as power, or may be a new energy vehicle such as a hybrid electric vehicle, a pure electric vehicle, and a fuel cell electric vehicle, as long as the door 220 is installed.
The foregoing description is not intended to limit the preferred embodiments of the present application, but is not intended to limit the scope of the present application, and any such modifications, equivalents and adaptations of the embodiments described above in accordance with the principles of the present application should and are intended to be within the scope of the present application, as long as they do not depart from the scope of the present application.