CN217159545U - Vehicle-mounted power supply equipment compatible with 0-90V wide voltage input - Google Patents
Vehicle-mounted power supply equipment compatible with 0-90V wide voltage input Download PDFInfo
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- CN217159545U CN217159545U CN202122397184.8U CN202122397184U CN217159545U CN 217159545 U CN217159545 U CN 217159545U CN 202122397184 U CN202122397184 U CN 202122397184U CN 217159545 U CN217159545 U CN 217159545U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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Abstract
The utility model relates to a wide voltage input's of compatible 0~90V vehicle mounted power supply unit, power input part and the vehicle mounted equipment power supply part including serial connection, power input part's input is connected to external wide voltage power output, power input part is used for converting external wide voltage signal into the required voltage signal of vehicle mounted equipment, the vehicle mounted equipment power supply part is used for providing the required voltage signal of its work to the vehicle mounted equipment. The power input part adopts a transient voltage suppressor/TVS tube and a DC/DC voltage conversion method, when the input voltage generates transient change or surge, sensitive electronic equipment is protected from accidents caused by transient voltage events of the sensitive electronic equipment, and the reliability of a control circuit is improved. The vehicle-mounted power supply equipment improves the voltage input adaptive range of the whole vehicle-mounted equipment, increases the anti-surge capacity of the equipment, reduces the electromagnetic interference and improves the practicability and stability of the equipment.
Description
Technical Field
The utility model relates to a bent axle technical field, concretely relates to wide voltage input's of compatible 0~90V vehicle mounted power supply equipment.
Background
At present, with the technological progress, the requirement for the voltage access compatibility of the vehicle-mounted positioning device is higher and higher, the electric vehicle has wide voltage input of 12V, 24V, 36V, 48V, 60V and the like, and particularly in the field of engineering machinery vehicles, 75V high-voltage machinery is even promoted due to different application scenes. In order to solve the problem that the vehicle-mounted equipment can be compatible with various scene applications, the vehicle-mounted equipment can be compatible to use in different vehicles or environments.
Most of the existing vehicle-mounted equipment adopts 0-32 v wide voltage input; however, due to the limited support range, the voltage scheme can only be used in the situations of passenger vehicles or commercial vehicles, and cannot be applied to the environments requiring higher input voltage, such as special motorcycles, electric vehicles, engineering machinery vehicles, high-power mechanical equipment and the like.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide a vehicle-mounted power supply device with wider application range, simple structure and compatibility with wide voltage input of 0 to 90V.
A vehicle-mounted power supply device compatible with 0-90V wide voltage input comprises a power supply input part and a vehicle-mounted device power supply part which are connected in series, wherein the input end of the power supply input part is connected to the external wide voltage power supply output end, and the output end of the power supply input part is connected to the input end of the vehicle-mounted device power supply device; the power supply input part is used for converting an external wide voltage signal into a voltage signal required by the vehicle-mounted equipment, and the vehicle-mounted equipment power supply part is used for providing the voltage signal required by the vehicle-mounted equipment for working.
Further, the power input part comprises an input control circuit and a DC/DC voltage conversion circuit, wherein the input control circuit is used for rectifying and filtering the input wide voltage signal, and the DC/DC voltage conversion circuit is used for converting the input wide voltage signal into a voltage signal required by the operation of the vehicle-mounted equipment.
Further, the input control circuit comprises a transient voltage suppression tube D100 and a Schottky diode D101, wherein the transient voltage suppression tube D100 and the Schottky diode D101 are connected to an output end of an external power supply in parallel; one end of the transient voltage suppressor tube D100 is connected to the output end of the external power supply, and the other end is grounded.
Furthermore, the input control circuit further comprises a pi-type LC filter circuit, wherein the anode of the Schottky diode D101 is connected to the output end of an external power supply, and the cathode of the Schottky diode D101 is connected to the pi-type LC filter circuit.
Further, the pi-type LC filter circuit includes a first winding inductor L102, a first filter capacitor C105, and a second filter capacitor C106, where the first filter capacitor C105 and the second filter capacitor C106 are electrically connected to two ends of the first winding inductor L102, respectively.
Furthermore, the output end of the pi-type LC filter circuit is connected in parallel with three filter capacitors, the three filter capacitors are respectively a third filter capacitor C100, a fourth filter capacitor C107 and a fifth filter capacitor C109, and the three filter capacitors are used for isolating the input control circuit and the DC/DC voltage conversion circuit.
Further, the DC/DC power conversion circuit includes a DC/DC power conversion chip and an output end filter circuit, and the DC/DC power conversion chip is used for converting a wide voltage signal output by an external power supply into a voltage signal required by the vehicle-mounted device; the output end filter circuit comprises a second winding inductor L101 and a sixth filter capacitor C102, and is used for isolating the DC/DC power conversion chip and the load circuit.
Furthermore, the vehicle-mounted equipment power supply part comprises a battery charging circuit, a power output circuit and a plurality of equipment power supply circuits which are connected in parallel, and the plurality of equipment power supply circuits comprise a satellite positioning and indicating circuit, a serial interface storage equipment power supply circuit, a serial interface equipment power supply circuit, a GPS positioning module power supply circuit, a Bluetooth connecting equipment power supply circuit, a central processing unit power supply circuit, a gravity sensor power supply circuit, a GPS positioning module position sensor power supply circuit, a buzzer power supply circuit and an automatic switch power supply circuit which are connected in parallel.
Further, the battery charging circuit comprises a charging power supply management chip, wherein the input end of the charging power supply management chip is connected to the power supply input part, and the output end of the charging power supply management chip is connected to a rechargeable battery.
Further, a plurality of the device power supply circuits are connected to the power input portion through a DC/DC voltage reduction chip, and a switch circuit is provided between the rechargeable battery and the plurality of the device power supply circuits, the switch circuit being configured to supply power from the rechargeable battery to the plurality of the device power supply circuits when the power input portion has no power output.
In the vehicle-mounted power supply equipment compatible with the wide voltage input of 0-90V, the power supply input part is connected to an external power supply, the wide voltage signal of 0-90V output by the external power supply is converted into a voltage signal required by the vehicle-mounted equipment, and the power supply input part adopts a method of a transient voltage suppression tube/TVS tube and DC/DC voltage conversion, so that when the input voltage generates transient change or surge, sensitive electronic equipment is protected from accidents caused by transient voltage events of other sensitive electronic equipment, and the reliability of a control circuit is improved. And the vehicle-mounted equipment power supply part converts the power supply signal output by the power supply input part into a voltage signal required by each vehicle-mounted equipment according to the requirements of different vehicle-mounted equipment. The vehicle-mounted power supply equipment improves the voltage input adaptive range of the whole vehicle-mounted equipment, increases the anti-surge capacity of the equipment, reduces the electromagnetic interference and improves the practicability and stability of the equipment. The product of the utility model is simple in structure, easy to produce, low in cost, convenient to popularize.
Drawings
FIG. 1 is a circuit diagram of a power input portion of a vehicle power supply device compatible with a wide voltage input of 0-90V according to an embodiment of the present invention;
FIG. 2 is a circuit diagram of the power supply part of the vehicle-mounted device of the vehicle-mounted power supply device compatible with 0-90V wide voltage input.
Detailed Description
The present invention will be described in detail with reference to the following embodiments and drawings.
Referring to fig. 1 and fig. 2, an on-board power supply device 100 compatible with 0-90V wide voltage input provided by an embodiment of the present invention includes a power input portion and an on-board device power supply portion connected in series, an input end of the power input portion is connected to an external wide voltage power output end, and an output end of the power input portion is connected to an input end of the on-board device power supply device; the power supply input part is used for converting an external wide voltage signal into a voltage signal required by the vehicle-mounted equipment, and the vehicle-mounted equipment power supply part is used for providing the voltage signal required by the vehicle-mounted equipment for working.
Specifically, the voltage range of the wide voltage power supply externally connected with the power input part is 0-90V wide voltage, and the wide voltage power supply is output to each vehicle-mounted device through the vehicle-mounted device power supply part after the wide voltage power supply is converted into the working voltage of the vehicle-mounted device by the power input part.
Further, the power input part comprises an input control circuit and a DC/DC voltage conversion circuit, wherein the input control circuit is used for rectifying and filtering the input wide voltage signal, and the DC/DC voltage conversion circuit is used for converting the input wide voltage signal into a voltage signal required by the operation of the vehicle-mounted equipment.
Further, the input control circuit comprises a transient voltage suppression tube D100, a Schottky diode D101 and a pi-type LC filter circuit, wherein the transient voltage suppression tube D100 and the Schottky diode D101 are connected to the output end of an external power supply in parallel; one end of the transient voltage suppressor tube D100 is connected to the output end of the external power supply, and the other end is grounded. And the anode of the Schottky diode D101 is connected to the output end of an external power supply, and the cathode of the Schottky diode D101 is connected to the pi-type LC filter circuit. The pi-type LC filter circuit includes a first winding inductor L102, a first filter capacitor C105, and a second filter capacitor C106, where the first filter capacitor C105 and the second filter capacitor C106 are electrically connected to two ends of the first winding inductor L102, respectively.
Specifically, the transient voltage suppressor D100 is configured to suppress an instantaneous overvoltage, and shunt and clamp a surge voltage, so as to prevent components in the circuit from being damaged by an instantaneous surge pulse voltage.
Specifically, the reverse recovery time of the schottky diode D101 is very short (can be as small as several nanoseconds), and the forward conduction voltage drop is only about 0.4V, so that the schottky diode D101 is used for large-current rectification and protection.
Specifically, the pi-type LC filter circuit is used to filter out ac harmonics in a signal input from an external power supply to obtain a smooth dc voltage.
Specifically, the first winding inductor L102 has strong electromagnetic compatibility, and is used for reducing electromagnetic interference of an external power circuit to the voltage conversion circuit.
Furthermore, the output end of the pi-type LC filter circuit is connected in parallel with three filter capacitors, the three filter capacitors are respectively a third filter capacitor C100, a fourth filter capacitor C107 and a fifth filter capacitor C109, and the three filter capacitors are used for isolating the input control circuit and the DC/DC voltage conversion circuit.
Specifically, the pi-type LC filter circuit and the three filter capacitors are used for simultaneously suppressing noise and harmonic signals from an external power supply circuit and the DC/DC voltage conversion circuit.
Further, the DC/DC power conversion circuit includes a DC/DC power conversion chip and an output end filter circuit, and the DC/DC power conversion chip is used for converting a wide voltage signal output by an external power supply into a voltage signal required by the vehicle-mounted device; the output end filter circuit comprises a second winding inductor L101 and a sixth filter capacitor C102, and is used for isolating the DC/DC power conversion chip and the load circuit.
Specifically, the DC/DC power conversion chip adopts an MP9487A chip, the MP9487A chip is a DC/DC power voltage reduction chip with ultra-wide voltage input, the input voltage range of the chip is 4.5-100 v, and the output voltage is 5.3 v/1A.
Furthermore, the vehicle-mounted equipment power supply part comprises a battery charging circuit, a power output circuit and a plurality of equipment power supply circuits which are connected in parallel, and the plurality of equipment power supply circuits comprise a satellite positioning and indicating circuit, a serial interface storage equipment power supply circuit, a serial interface equipment power supply circuit, a GPS positioning module power supply circuit, a Bluetooth connecting equipment power supply circuit, a central processing unit power supply circuit, a gravity sensor power supply circuit, a GPS positioning module position sensor power supply circuit, a buzzer power supply circuit and an automatic switch power supply circuit which are connected in parallel.
Further, the battery charging circuit comprises a charging power supply management chip, wherein the input end of the charging power supply management chip is connected to the power supply input part, and the output end of the charging power supply management chip is connected to a rechargeable battery. The plurality of equipment power supply circuits are connected to the power input part through a DC/DC voltage reduction chip, and a switch circuit is arranged between the rechargeable battery and the plurality of equipment power supply circuits and used for supplying power to the plurality of equipment power supply circuits by the rechargeable battery when the power input part has no power output.
Specifically, the charging power supply management chip adopts an ETA4056 chip, the ETA4056 chip is a single-core fully-integrated constant-current constant-voltage lithium battery charging management chip, a built-in thermal feedback mechanism is used for adjusting charging current so as to control the temperature during high-power operation or when the ambient temperature rises, and meanwhile, the charging power supply management chip has a pre-charging function of trickle charging of a deep discharge battery and can realize quick charging through programming of an external resistor.
Specifically, the DC/DC voltage reduction chip adopts an ETA3499 chip, the input voltage signal of the chip is 7.3V/3A, and the output voltage is 4V.
Specifically, a satellite positioning and indicating circuit is connected to the DC/DC voltage reduction chip and is used for vehicle positioning and equipment working state indication.
Specifically, the serial interface storage device power supply circuit, the serial interface device power supply circuit, the GPS positioning module power supply circuit and the bluetooth connection device power supply circuit are independent of each other and are respectively connected to the DC/DC voltage reduction chip through an XC6228D332VR chip.
Specifically, the central processing unit power supply circuit, the gravity sensor power supply circuit and the GPS positioning module position sensor power supply circuit are connected to the DC/DC voltage reduction chip through an XC6223H331MR chip, and the output voltage of the XC6223H331MR chip is 3.3V.
Specifically, the buzzer power supply circuit and the automatic switch power supply circuit are connected to the DC/DC step-down chip through an SGM6607 chip, and the output voltage of the SGM6607 chip is 12V.
In the vehicle-mounted power supply equipment compatible with the wide voltage input of 0-90V, the power supply input part is connected to an external power supply, the wide voltage signal of 0-90V output by the external power supply is converted into a voltage signal required by the vehicle-mounted equipment, and the power supply input part adopts a method of a transient voltage suppression tube/TVS tube and DC/DC voltage conversion, so that when the input voltage generates transient change or surge, sensitive electronic equipment is protected from accidents caused by transient voltage events of other sensitive electronic equipment, and the reliability of a control circuit is improved. And the vehicle-mounted equipment power supply part converts the power supply signal output by the power supply input part into a voltage signal required by each vehicle-mounted equipment according to the requirements of different vehicle-mounted equipment. The vehicle-mounted power supply equipment improves the voltage input adaptive range of the whole vehicle-mounted equipment, increases the anti-surge capacity of the equipment, reduces the electromagnetic interference and improves the practicability and stability of the equipment. The product of the utility model is simple in structure, easy to produce, low in cost, convenient to popularize.
It should be noted that the present invention is not limited to the above embodiments, and other changes can be made by those skilled in the art according to the spirit of the present invention, and all the changes made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. The vehicle-mounted power supply equipment compatible with 0-90V wide voltage input is characterized by comprising a power supply input part and a vehicle-mounted equipment power supply part which are connected in series, wherein the input end of the power supply input part is connected to the external wide voltage power supply output end, and the output end of the power supply input part is connected to the input end of the vehicle-mounted equipment power supply equipment; the power supply input part is used for converting an external wide voltage signal into a voltage signal required by the vehicle-mounted equipment, and the vehicle-mounted equipment power supply part is used for providing the voltage signal required by the vehicle-mounted equipment for working.
2. The vehicle-mounted power supply equipment compatible with the wide voltage input of 0-90V according to claim 1, wherein the power supply input part comprises an input control circuit and a DC/DC voltage conversion circuit, the input control circuit is used for rectifying and filtering the input wide voltage signal, and the DC/DC voltage conversion circuit is used for converting the input wide voltage signal into a voltage signal required by the vehicle-mounted equipment to work.
3. The vehicle-mounted power supply equipment compatible with 0-90V wide voltage input according to claim 2, wherein the input control circuit comprises a transient voltage suppression tube D100 and a Schottky diode D101, and the transient voltage suppression tube D100 and the Schottky diode D101 are connected to an external power supply output end in parallel; one end of the transient voltage suppressor tube D100 is connected to the output end of the external power supply, and the other end is grounded.
4. The vehicle-mounted power supply equipment compatible with 0-90V wide voltage input according to claim 3, wherein the input control circuit further comprises a pi-type LC filter circuit, an anode of the Schottky diode D101 is connected to an external power supply output end, and a cathode of the Schottky diode D101 is connected to the pi-type LC filter circuit.
5. The vehicle-mounted power supply equipment compatible with the 0-90V wide voltage input according to claim 4, wherein the pi-type LC filter circuit comprises a first winding inductor L102, a first filter capacitor C105 and a second filter capacitor C106, and the first filter capacitor C105 and the second filter capacitor C106 are respectively and electrically connected to two ends of the first winding inductor L102.
6. The vehicle-mounted power supply equipment compatible with 0-90V wide voltage input according to claim 5, wherein three filter capacitors are connected in parallel to the output end of the pi-type LC filter circuit, the three filter capacitors are respectively a third filter capacitor C100, a fourth filter capacitor C107 and a fifth filter capacitor C109, and the three filter capacitors are used for isolating the input control circuit and the DC/DC voltage conversion circuit.
7. The vehicle-mounted power supply equipment compatible with the wide voltage input of 0-90V as claimed in claim 2, wherein the DC/DC power conversion circuit comprises a DC/DC power conversion chip and an output end filter circuit, and the DC/DC power conversion chip is used for converting a wide voltage signal output by an external power supply into a voltage signal required by the vehicle-mounted equipment; the output end filter circuit comprises a second winding inductor L101 and a sixth filter capacitor C102, and is used for isolating the DC/DC power conversion chip and the load circuit.
8. The vehicle-mounted power supply device compatible with the wide voltage input of 0-90V as claimed in claim 1, wherein the vehicle-mounted device power supply part comprises a battery charging circuit, a power output circuit and a plurality of device power supply circuits which are connected in parallel, and the plurality of device power supply circuits comprise a satellite positioning and indicating circuit, a serial interface storage device power supply circuit, a serial interface device power supply circuit, a GPS positioning module power supply circuit, a Bluetooth connection device power supply circuit, a central processing unit power supply circuit, a gravity sensor power supply circuit, a GPS positioning module position sensor power supply circuit, a buzzer power supply circuit and an automatic switch power supply circuit which are connected in parallel.
9. The vehicle-mounted power supply device compatible with 0-90V wide voltage input according to claim 8, wherein the battery charging circuit comprises a charging power supply management chip, an input end of the charging power supply management chip is connected to the power supply input part, and an output end of the charging power supply management chip is connected to a charging battery.
10. The vehicle-mounted power supply device compatible with 0-90V wide voltage input according to claim 9, wherein a plurality of device power supply circuits are connected to the power input portion through a DC/DC step-down chip, and a switch circuit is provided between the rechargeable battery and the plurality of device power supply circuits, and the switch circuit is used for supplying power to the plurality of device power supply circuits by the rechargeable battery when the power input portion has no power output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122397184.8U CN217159545U (en) | 2021-09-30 | 2021-09-30 | Vehicle-mounted power supply equipment compatible with 0-90V wide voltage input |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122397184.8U CN217159545U (en) | 2021-09-30 | 2021-09-30 | Vehicle-mounted power supply equipment compatible with 0-90V wide voltage input |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217159545U true CN217159545U (en) | 2022-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122397184.8U Active CN217159545U (en) | 2021-09-30 | 2021-09-30 | Vehicle-mounted power supply equipment compatible with 0-90V wide voltage input |
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| Country | Link |
|---|---|
| CN (1) | CN217159545U (en) |
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2021
- 2021-09-30 CN CN202122397184.8U patent/CN217159545U/en active Active
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