CN209200761U - The power transfer device of vehicle-mounted T-BOX, vehicle-mounted T-BOX - Google Patents
The power transfer device of vehicle-mounted T-BOX, vehicle-mounted T-BOX Download PDFInfo
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- CN209200761U CN209200761U CN201822150010.XU CN201822150010U CN209200761U CN 209200761 U CN209200761 U CN 209200761U CN 201822150010 U CN201822150010 U CN 201822150010U CN 209200761 U CN209200761 U CN 209200761U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
This disclosure relates to a kind of power transfer device of vehicle-mounted T-BOX, vehicle-mounted T-BOX.Power transfer device includes: monitoring unit, for monitoring the voltage of Vehicular accumulator cell output；Switch unit disconnects backup power source and boosting unit for when receiving the enabling signal of control unit transmission, backup power source to be connect with boosting unit, and when receiving the shutdown signal of control unit transmission；Boosting unit, it is out of service for when receiving the enabling signal of control unit transmission, being transmitted to power cell after the voltage of input is boosted, and when receiving the shutdown signal of control unit transmission；Control unit when the voltage for exporting in monitoring unit is less than scheduled first voltage threshold value, sends enabling signal to switch unit and boosting unit.In this way, the reliability to vehicle-mounted T-BOX power supply has been ensured, so as to preferably play the function of vehicle-mounted T-BOX.
Description
Technical field
This disclosure relates to vehicle-mounted T-BOX technical field, and in particular, to a kind of power transfer device, the vehicle of vehicle-mounted T-BOX
Carry T-BOX.
Background technique
Car networking system includes four parts: host, vehicle-mounted T-BOX (Telematics BOX), cell phone application and backstage are
System.The audio-visual amusement and information of vehicles that host is mainly used for are shown.Vehicle-mounted T-BOX is mainly used for and background system/mobile phone
APP communication realizes that the information of vehicles of cell phone application is shown and control.
Vehicle-mounted T-BOX can depth read vehicle CAN bus data and proprietary protocol, vehicle-mounted T-BOX has double-core processing
OBD module, the CPU architecture of double-core processing, data acquisition bus data and proprietary protocol Reverse Turning Control, will be counted by GPRS network respectively
Cloud Server is arrived according to outflow, vehicle condition report is provided, driving report, the prompting of oil consumption statistics, failure, inquiry violating the regulations, location track, is driven
Sail behavior, safe antitheft, subscription services, remotely look for vehicle, using mobile phone control car door, window, lamp, lock, loudspeaker, it is double dodge, it is reflective
Mirror folding, skylight, control warning and air bag state etc. in monitoring.
Vehicle-mounted T-BOX is usually powered by Vehicular accumulator cell.Increasingly with the requirement to vehicle-mounted T-BOX reliability
Height, the requirement to the stability and reliability of vehicle-mounted T-BOX power supply are also higher and higher.
Utility model content
Purpose of this disclosure is to provide the power transfer devices of safe and reliable vehicle-mounted T-BOX a kind of, and provide a kind of vehicle
Carry T-BOX.
To achieve the goals above, the disclosure provides the power transfer device of vehicle-mounted T-BOX a kind of.The power supply switching dress
Setting includes: monitoring unit, is connect with Vehicular accumulator cell, for monitoring the voltage of the Vehicular accumulator cell output；Switch unit, point
Do not connect with backup power source, control unit and boosting unit, for receive described control unit transmission enabling signal when,
The backup power source is connect with the boosting unit, and when receiving the shutdown signal of described control unit transmission, by institute
It states backup power source and the boosting unit disconnects；The boosting unit connect with the power cell of the vehicle-mounted T-BOX, is used for
When receiving the enabling signal of described control unit transmission, the power is transmitted to after the voltage of input is boosted
Unit, and when receiving the shutdown signal of described control unit transmission, it is out of service；Described control unit, respectively with
The monitoring unit, the switch unit are connected with the boosting unit, and the voltage for exporting in the monitoring unit is less than
When scheduled first voltage threshold value, Xiang Suoshu switch unit and the boosting unit send the enabling signal, and in the prison
When surveying the voltage of unit output greater than scheduled second voltage threshold value, described in Xiang Suoshu switch unit and boosting unit transmission
Shutdown signal.
Optionally, the monitoring unit includes monitoring master chip, first resistor, second resistance, 3rd resistor, the 4th electricity
The input of resistance, first capacitor, the second capacitor, third capacitor, first diode and the second diode, the monitoring unit terminates institute
Vehicular accumulator cell is stated, the output of the monitoring unit terminates described control unit.
The input terminal of the monitoring unit is one end of the first resistor, and the other end of the first resistor passes through described
First capacitor ground line, the voltage input pin of another termination of first resistor monitoring master chip, the monitoring master
The grounding pin of chip is grounded, and the releasing delay electricity container connection pin of the monitoring master chip passes through second capacitor
The voltage detecting output pin of ground line, the monitoring master chip connects the cathode of second diode, second diode
Anode be the monitoring unit output end, it is described monitoring master chip voltage input pin pass sequentially through the second resistance
The cathode of second diode is connect with the 3rd resistor, the cathode of the first diode connects in the second resistance and institute
It states between 3rd resistor, the anode of the first diode connects DC power supply terminal, and the anode of the first diode passes through described
4th resistance connects the anode of second diode, and the anode of second diode passes through the third capacity earth line.
Optionally, the switch unit includes metal-oxide-semiconductor, compound transistor, the 4th capacitor, the 5th capacitor, the 6th capacitor,
Seven capacitors, the 5th resistance, the 6th resistance and the 7th resistance, the input of the switch unit terminates the backup power source, described to cut
The output for changing unit terminates the boosting unit.
The compound transistor includes triode, the 8th resistance and the 9th resistance, and the current collection of the triode is extremely described
The collector of compound transistor, the emitter of the extremely described compound transistor of transmitting of the triode, the hair of the triode
Emitter-base bandgap grading connects the base stage of the triode by the 9th resistance, and the base stage of the triode connects one end of the 8th resistance,
The other end of 8th resistance is the base stage of the compound transistor.
The input terminal of the switch unit is one end of the 5th resistance, and one end of the 5th resistance passes through described the
Four capacity earth lines, the source electrode of a termination metal-oxide-semiconductor of the 5th resistance, described in another termination of the 5th resistance
The grid of metal-oxide-semiconductor, the drain electrode of the metal-oxide-semiconductor are the output end of the switch unit, and the grid of the metal-oxide-semiconductor passes through the described 6th
Resistance connects the collector of the compound transistor, and the grid of the metal-oxide-semiconductor is by the 5th capacity earth line, and described compound three
The base stage of the emitter ground line of pole pipe, the compound transistor passes through the 7th resistance eutral grounding line, the compound transistor
Base stage connect described control unit, the output end of the switch unit passes through the 6th capacitor respectively and the 7th capacitor connects
Ground wire.
Optionally, the boosting unit include boosting master chip, the first filter element, the second filter element, power inductance,
Third diode, the 4th diode, the 5th diode, the tenth resistance, eleventh resistor, twelfth resistor, thirteenth resistor,
14 resistance, the 8th capacitor, the 9th capacitor, the tenth capacitor, the 11st capacitor, the 12nd capacitor, the 13rd capacitor, the 14th electricity
Hold, the 15th capacitor, the 16th capacitor, the 17th capacitor, the input of the boosting unit terminates the output of the switch unit
The output at end, the boosting unit terminates the power cell.
One end of first filter element is the input terminal of the boosting unit, the input terminal difference of the boosting unit
By the 9th capacitor and the tenth capacity earth line, another termination of first filter element third diode
Anode, the cathode of the third diode connects the cathode of the 5th diode, and the anode of the 5th diode is described
The anode of the output end of boosting unit, the third diode passes through the 11st capacity earth line, the third diode
Anode the switch pin of the boosting master chip is connect by the power inductance, the cathode of the third diode passes through described
The anode of 13rd capacity earth line, the 5th diode passes through the 17th capacity earth line, the 5th diode
Anode the cathode of the 4th diode is connect by second filter element, the cathode of the 4th diode passes through respectively
15th capacitor and the 16th capacity earth line, the cathode of the 4th diode pass sequentially through the 13rd electricity
Resistance and the 14th resistance eutral grounding line, the anode of the 4th diode connects the switch pin of the boosting master chip, described
The compensation pin of boosting master chip passes sequentially through the twelfth resistor and the 12nd capacity earth line, the boosting main core
The enabled pin of piece is grounded by the eleventh resistor, and the enabled pin of the boosting master chip connects described control unit,
The supply input pin of the boosting master chip connects the cathode of the third diode, and is connect by the 13rd capacitor
Ground wire, the ground wire pin ground line of the boosting master chip, the feedback pin of the boosting master chip connect in the 13rd electricity
Between resistance and the 14th resistance, the soft start control pin of the boosting master chip passes through the 8th capacity earth line,
For the switching frequency setting pin of the boosting master chip by the tenth resistance eutral grounding line, the voltage of the boosting master chip is defeated
Enter pin and passes through the 14th capacity earth line.
Optionally, the power transfer device further includes the 6th diode, and the anode of the 6th diode connects the vehicle
Battery is carried, the cathode of the 6th diode connects the power cell.
Optionally, the power transfer device further includes the 7th diode, and the anode of the 7th diode connects the liter
The output end of unit is pressed, the cathode of the 7th diode connects the power cell.
The disclosure also provides a kind of vehicle-mounted T-BOX, including the above-mentioned power transfer device provided according to the disclosure.
Through the above technical solutions, using the voltage status of hardware circuit real-time monitoring Vehicular accumulator cell power supply branch,
When Vehicular accumulator cell undertension, realize quick, seamless between Vehicular accumulator cell and the power supply branch of backup power source
Switching.In this way, the reliability to vehicle-mounted T-BOX power supply has been ensured, so as to preferably play the function of vehicle-mounted T-BOX.
Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:
Fig. 1 is the structural block diagram of the power transfer device for the vehicle-mounted T-BOX that an exemplary embodiment provides；
Fig. 2 is the structural block diagram of the power transfer device for the vehicle-mounted T-BOX that another exemplary embodiment provides；
Fig. 3 is timing diagram when detecting Vehicular accumulator cell electricity shortage that an exemplary embodiment provides；
Fig. 4 is the timing diagram released when backup power source is powered that an exemplary embodiment provides；
Fig. 5 is the circuit diagram for the monitoring unit that an exemplary embodiment provides；
Fig. 6 is the circuit diagram for the switch unit that an exemplary embodiment provides；
Fig. 7 is the circuit diagram for the boosting unit that an exemplary embodiment provides.
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
Fig. 1 is the structural block diagram of the power transfer device for the vehicle-mounted T-BOX that an exemplary embodiment provides.As shown in Figure 1,
Power transfer device may include monitoring unit, switch unit, boosting unit and control unit.
Monitoring unit is connect with Vehicular accumulator cell, for monitoring the voltage of Vehicular accumulator cell output.
Switch unit is connect with backup power source, control unit and boosting unit respectively, for receiving control unit hair
When the enabling signal sent, backup power source is connect with boosting unit, and when receiving the shutdown signal of control unit transmission, it will
Backup power source and boosting unit disconnect.
Boosting unit is connect with the power cell of vehicle-mounted T-BOX, in the enabling signal for receiving control unit transmission
When, power cell is transmitted to after the voltage of input is boosted, and when receiving the shutdown signal of control unit transmission, stop
Only run.
Control unit is connect with monitoring unit, switch unit and boosting unit respectively, the electricity for exporting in monitoring unit
When pressure is less than scheduled first voltage threshold value, enabling signal is sent to switch unit and boosting unit, and export in monitoring unit
Voltage when being greater than scheduled second voltage threshold value, send shutdown signal to switch unit and boosting unit.
According to the connection relationship of above-mentioned each unit, when the electricity for the monitoring unit output that the t1 port of control unit receives
When pressure is less than scheduled first voltage threshold value, enabling signal, control can be sent from the port T2 to switch unit and boosting unit
Switch unit and boosting unit operation, are transmitted to power cell (vehicle-mounted T-BOX after the voltage of backup power source branch is boosted
In DC load).Also, when the voltage for the monitoring unit output that the t1 port of control unit receives is greater than scheduled second
When voltage threshold, shutdown signal can be sent from the port T2 to switch unit and boosting unit, control switch unit and boosting are single
Member is out of service, and power cell is powered by Vehicular accumulator cell at this time.
Wherein, first voltage threshold value and second voltage threshold value can according to the component parameter operation in physical circuit, and
Rule of thumb determine.When the voltage of monitoring unit output is less than first voltage threshold value, it is believed that vehicular electricity storage cell voltage
Deficiency needs to switch to backup power source power supply.When the voltage of monitoring unit output is greater than second voltage threshold value, it is believed that vehicle
It is sufficient to carry battery voltage, can switch back into and be powered by Vehicular accumulator cell.
Through the above technical solutions, using the voltage status of hardware circuit real-time monitoring Vehicular accumulator cell power supply branch,
When Vehicular accumulator cell undertension, realize quick, seamless between Vehicular accumulator cell and the power supply branch of backup power source
Switching.In this way, the reliability to vehicle-mounted T-BOX power supply has been ensured, so as to preferably play the function of vehicle-mounted T-BOX.
Fig. 2 is the structural block diagram of the power transfer device for the vehicle-mounted T-BOX that another exemplary embodiment provides.Such as Fig. 2 institute
Show, on the basis of Fig. 1, power transfer device can also include the 6th diode D6.The anode of 6th diode D6 picks up load
The cathode of battery, the 6th diode D6 connects power cell.6th diode D6 can play the role of counnter attack, that is, avoid vehicle-mounted
The adverse effect that accumulator anode and cathode reversal connection generates, also, when backup power source works and Vehicular accumulator cell does not work, the six or two
Pole pipe D6 can block backup power source supplying power for outside.
In Fig. 2, power transfer device can also include the 7th diode D7.It is single that the anode of 7th diode D7 connects boosting
The output end of member, the cathode of the 7th diode D7 connect power cell.
6th diode D6 and the 7th diode D7 can select Schottky diode, the forward voltage drop with very little
(for example, 0.3V).When Vehicular accumulator cell work, the 7th diode D7, which can be played, blocks Vehicular accumulator cell to supply boosting unit
The effect of electricity.
Fig. 3 is timing diagram when detecting Vehicular accumulator cell electricity shortage that an exemplary embodiment provides.Monitoring unit
It is constantly in working condition, the voltage status of real-time monitoring Vehicular accumulator cell power supply branch in the entire system.Work as vehicular electricity storage
When abnormal or power-off occurs in the voltage value of pond power supply branch, voltage value can drop.When voltage value is less than first voltage threshold value V1,
It can be exported low level (being high level when Vehicular accumulator cell normal power supply) by T1 pin immediately, it is logical with failing edge interrupt mode
Know that control unit, control unit protect work at present data in time, and be immediately performed reserve battery starting work, passes through
T2 pin exports high level, starts switch unit and boosting unit.The voltage of backup power source (being built in vehicle-mounted T-BOX) passes through
Output is supplied to power cell to the 7th diode D7 after boosting unit carries out voltage increase.In this way, (rear class is negative for power cell
Carry) it is unaffected, continue to work normally, entire handoff procedure is seamless.Wherein, M is the voltage that Vehicular accumulator cell works normally
Region.First voltage threshold value V1 can slightly above work normally the voltage minimum allowed.When on-vehicle battery electric voltage exception, meeting
There is the case where power-off VSS (0V).
Fig. 4 is the timing diagram released when backup power source is powered that an exemplary embodiment provides.When Vehicular accumulator cell is powered
The voltage of branch is from exception into normal repair processes, and voltage is from ground terminal VSS (0V) in state of slowly ging up.When voltage value is big
When second voltage threshold value V2, high level (being low level when detection undertension) can be exported, by T1 pin with rising edge
Interrupt mode notice control control unit, control unit, which executes, stops backup power source powered operation, exports low electricity by T2 pin
It is flat, starting switch unit and boosting unit are closed, the power supply of backup power source is cut off, by Vehicular accumulator cell power supply branch through the six or two
Pole pipe D6 is supplied to power cell.In this way, power cell (successive load) still works normally, entire handoff procedure is seamless.
As shown in figure 4, high level can also be exported by T1 pin, with rising edge interruption side after delay time Δ t
Formula notice control control unit.Delay time Δ t can be calculated by the following formula:
Δ t=2.86*C0+0.35
Wherein, 2.86 be scheduled retardation coefficient, and 0.35 is scheduled releasing delay time, and unit ms, C0 are delay
Select the capability value of capacitor, unit nF.Delay time Δ t can be adjusted by changing the capability value.
During releasing use delayed execution mode, can prevent Vehicular accumulator cell power supply branch voltage by noise,
The mistake that the factors such as interference are influenced and generated switches.
Fig. 5 is the circuit diagram for the monitoring unit that an exemplary embodiment provides.As shown in figure 5, monitoring unit can be with
Including monitoring master chip U1, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, first capacitor C1, second
Capacitor C2, third capacitor C3, first diode D1 and the second diode D2.The input terminal of monitoring unit connects Vehicular accumulator cell, prison
The output for surveying unit terminates control unit.The chip of S-19110AAEA-M6T1U4 model can be used by monitoring master chip U1.
The input terminal of monitoring unit is one end of first resistor R1, and the other end of first resistor R1 is connect by first capacitor C1
Ground wire.The voltage input pin (VDD pin) of another termination monitoring master chip U1 of first resistor R1, monitoring master chip U1's connects
Ground pin (VSS pin) ground line.Releasing delay electricity container connection pin (CP pin) for monitoring master chip U1 passes through second
Capacitor C2 is grounded (GND).The voltage detecting output pin (OUT pin) of monitoring master chip U1 connects the yin of the second diode D2
Pole, the anode of the second diode D2 are the output end of monitoring unit.The voltage input pin of monitoring master chip U1 passes sequentially through the
Two resistance R2 and 3rd resistor R3 connect the cathode of the second diode D2.The cathode of first diode D1 connects in second resistance R2 and
Between three resistance R3.The anode of first diode D1 connects DC power supply terminal (for example,+3V), and the anode of first diode D1 passes through
4th resistance R4 connects the anode of the second diode D2.The anode of second diode D2 is grounded by third capacitor C3.Monitoring master
Detection delay electricity container connection pin (CN pin) of chip U1 can be grounded by a spare capacitor (not shown).
Control unit can use the chip of RH850 series, wherein monitoring unit can connect the GPIO of control unit
End.
Fig. 6 is the circuit diagram for the switch unit that an exemplary embodiment provides.As shown in fig. 6, switch unit can be with
Including metal-oxide-semiconductor U2, compound transistor U3, the 4th capacitor C4, the 5th capacitor C5, the 6th capacitor C6, the 7th capacitor C7, the 5th resistance
R5, the 6th resistance R6 and the 7th resistance R7.The input of switch unit terminates backup power source, and the output termination boosting of switch unit is single
Member.Metal-oxide-semiconductor U2 can use the chip of KMB3D0P30SA-RTK/P model.Compound transistor U3 can use KRC403-RTK/
The chip of p-type number.
Compound transistor U3 includes triode Q1, the 8th resistance R8 and the 9th resistance R9.The current collection of triode Q1 is extremely multiple
Close the collector C of triode U3.The transmitting extremely emitter E of compound transistor U3 of triode Q1.The emitter of triode Q1
The base stage of triode Q1 is connect by the 9th resistance R9.The base stage of triode Q1 connects one end of the 8th resistance R8, the 8th resistance R8's
The other end is the base stage B of compound transistor U3.
The input terminal of switch unit is one end of the 5th resistance R5.One end of 5th resistance R5 is grounded by the 4th capacitor C4
Line.The source S of a termination metal-oxide-semiconductor U2 of 5th resistance R5, the grid G of another termination metal-oxide-semiconductor U2 of the 5th resistance R5.Metal-oxide-semiconductor
The drain D of U2 is the output end of switch unit.The grid G of metal-oxide-semiconductor U2 connects the current collection of compound transistor U3 by the 6th resistance R6
Pole C.The grid G of metal-oxide-semiconductor U2 is grounded by the 5th capacitor C5.The emitter E of compound transistor U3 is grounded.Compound transistor
The base stage B of U3 is grounded by the 7th resistance R7.The base stage B of compound transistor U3 connects control unit.The output end of switch unit
It is grounded respectively by the 6th capacitor C6 and the 7th capacitor C7.
Switch unit can connect to the end GPIO of control unit.
Fig. 7 is the circuit diagram for the boosting unit that an exemplary embodiment provides.As shown in fig. 7, boosting unit can be with
Including the master chip U4, the first filter element U5, the second filter element U6, power inductance U7, third diode D3, the four or two of boosting
Pole pipe D4, the 5th diode D5, the tenth resistance R10, eleventh resistor R11, twelfth resistor R12, thirteenth resistor R13,
14 resistance R14, the 8th capacitor C8, the 9th capacitor C9, the tenth capacitor C10, the 11st capacitor C11, the 12nd capacitor C12,
13 capacitor C13, the 14th capacitor C14, the 15th capacitor C15, the 16th capacitor C16, the 17th capacitor C17.Boosting unit
Input termination switch unit output end, boosting unit output termination power cell (alternatively, as shown in Fig. 2, boosting unit
Power cell is connect by the 7th diode D7).The master chip U4 that boosts can use the chip of MP3426DL-LF-Z model.First
Filter element U5 can use the element of BLM21PG600SH1D model, and the second filter element U6 can be used
The element of BLM21PG600SH1D model.
One end of first filter element U5 is the input terminal of boosting unit.The input terminal of boosting unit passes through the 9th electricity respectively
Hold C9 and the tenth capacitor C10 ground line.The anode of another termination third diode D3 of first filter element U5.Third diode
The cathode of D3 connects the cathode of the 5th diode D5, and the anode of the 5th diode D5 is the output end of boosting unit.Third diode
The anode of D3 is grounded by the 11st capacitor C11, and the anode of third diode D3 connects boosting master chip by power inductance U7
The switch pin (SW pin) of U4.The cathode of third diode D3 is grounded by the 13rd capacitor C13.5th diode D5's
Anode is grounded by the 17th capacitor C17.The anode of 5th diode D5 connects the 4th diode by the second filter element U6
The cathode of D4.The cathode of 4th diode D4 passes through the 15th capacitor C15 and the 16th capacitor C16 ground line respectively.Four or two
The cathode of pole pipe D4 passes sequentially through thirteenth resistor R13 and the 14th resistance R14 ground line.The anode of 4th diode D4 connects liter
Press the switch pin of master chip U4.Boosting master chip U4 compensation pin (COMP pin) pass sequentially through twelfth resistor R12 and
12nd capacitor C12 ground line.The enabled pin (EN pin) of boosting master chip U4 is grounded by eleventh resistor R11.It rises
The enabled pin of pressure master chip U4 connects control unit, and the supply input pin (VIN pin) of boosting master chip U4 connects the three or two pole
The cathode of pipe D3.And be grounded by the 13rd capacitor C13, (AGND, PGND, EPAD draw the ground wire pin for the master chip U4 that boosts
Foot) ground line.The feedback pin (FB pin) of boosting master chip U4 connects between thirteenth resistor R13 and the 14th resistance R14.
Soft start control pin (SS pin) of boosting master chip U4 passes through the 8th capacitor C8 and is grounded.The switch frequency of boosting master chip U4
Rate is arranged pin (FSET pin) and is grounded by the tenth resistance R10.The voltage input pin (VDD pin) of boosting master chip U4
It is grounded by the 14th capacitor C14.
Boosting unit can connect to the end GPIO of control unit.
The disclosure also provides a kind of vehicle-mounted T-BOX, including above-mentioned power transfer device.
The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection scope of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the disclosure to it is various can
No further explanation will be given for the combination of energy.
In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (7)
1. a kind of power transfer device of vehicle-mounted T-BOX, which is characterized in that the power transfer device includes:
Monitoring unit is connect with Vehicular accumulator cell, for monitoring the voltage of the Vehicular accumulator cell output；
Switch unit is connect with backup power source, control unit and boosting unit respectively, for receiving described control unit hair
When the enabling signal sent, the backup power source is connect with the boosting unit, and is receiving described control unit transmission
When shutdown signal, the backup power source and the boosting unit are disconnected；
The boosting unit is connect with the power cell of the vehicle-mounted T-BOX, for receiving described control unit transmission
When the enabling signal, the power cell is transmitted to after the voltage of input is boosted, and single receiving the control
It is out of service when the shutdown signal that member is sent；
Described control unit is connect with the monitoring unit, the switch unit and the boosting unit respectively, for described
When the voltage of monitoring unit output is less than scheduled first voltage threshold value, Xiang Suoshu switch unit and the boosting unit send institute
Enabling signal is stated, and when the voltage of monitoring unit output is greater than scheduled second voltage threshold value, Xiang Suoshu switch unit
The shutdown signal is sent with the boosting unit.
2. power transfer device according to claim 1, which is characterized in that the monitoring unit include monitoring master chip,
First resistor, second resistance, 3rd resistor, the 4th resistance, first capacitor, the second capacitor, third capacitor, first diode and
Two diodes, the input of the monitoring unit terminate the Vehicular accumulator cell, and the output of the monitoring unit terminates the control
Unit,
The input terminal of the monitoring unit is one end of the first resistor, and the other end of the first resistor passes through described first
Capacity earth line, the voltage input pin of another termination of first resistor monitoring master chip, the monitoring master chip
Grounding pin ground line, it is described monitoring master chip releasing delay electricity container connection pin pass through second capacity earth
The voltage detecting output pin of line, the monitoring master chip connects the cathode of second diode, the sun of second diode
The voltage input pin of the output end of the extremely described monitoring unit, the monitoring master chip passes sequentially through the second resistance and institute
The cathode that 3rd resistor connects second diode is stated, the cathode of the first diode connects in the second resistance and described
Between three resistance, the anode of the first diode connects DC power supply terminal, and the anode of the first diode passes through the described 4th
Resistance connects the anode of second diode, and the anode of second diode passes through the third capacity earth line.
3. power transfer device according to claim 1, which is characterized in that the switch unit includes metal-oxide-semiconductor, compound three
Pole pipe, the 4th capacitor, the 5th capacitor, the 6th capacitor, the 7th capacitor, the 5th resistance, the 6th resistance and the 7th resistance, the switching
The input of unit terminates the backup power source, and the output of the switch unit terminates the boosting unit,
The compound transistor includes triode, the 8th resistance and the 9th resistance, and the current collection of the triode is extremely described compound
The collector of triode, the emitter of the extremely described compound transistor of transmitting of the triode, the emitter of the triode
The base stage of the triode is connect by the 9th resistance, the base stage of the triode connects one end of the 8th resistance, described
The other end of 8th resistance is the base stage of the compound transistor,
The input terminal of the switch unit is one end of the 5th resistance, and one end of the 5th resistance passes through the 4th electricity
Hold ground line, the source electrode of a termination metal-oxide-semiconductor of the 5th resistance, another termination metal-oxide-semiconductor of the 5th resistance
Grid, the drain electrode of the metal-oxide-semiconductor is the output end of the switch unit, and the grid of the metal-oxide-semiconductor passes through the 6th resistance
The collector of the compound transistor is connect, the grid of the metal-oxide-semiconductor passes through the 5th capacity earth line, the compound transistor
Emitter ground line, the base stage of the compound transistor passes through the 7th resistance eutral grounding line, the base of the compound transistor
Pole connects described control unit, and the output end of the switch unit passes through the 6th capacitor and the 7th capacity earth respectively
Line.
4. power transfer device according to claim 1, which is characterized in that the boosting unit include boosting master chip,
First filter element, the second filter element, power inductance, third diode, the 4th diode, the 5th diode, the tenth resistance,
Eleventh resistor, twelfth resistor, thirteenth resistor, the 14th resistance, the 8th capacitor, the 9th capacitor, the tenth capacitor, the 11st
Capacitor, the 12nd capacitor, the 13rd capacitor, the 14th capacitor, the 15th capacitor, the 16th capacitor, the 17th capacitor, the liter
The input of unit is pressed to terminate the output end of the switch unit, the output of the boosting unit terminates the power cell,
One end of first filter element is the input terminal of the boosting unit, and the input terminal of the boosting unit passes through respectively
9th capacitor and the tenth capacity earth line, the sun of another termination of first filter element third diode
Pole, the cathode of the third diode connect the cathode of the 5th diode, and the anode of the 5th diode is the boosting
The anode of the output end of unit, the third diode passes through the 11st capacity earth line, the sun of the third diode
Pole connects the switch pin of the boosting master chip by the power inductance, and the cathode of the third diode passes through the described tenth
The anode of three capacity earth lines, the 5th diode passes through the 17th capacity earth line, the sun of the 5th diode
Pole connects the cathode of the 4th diode by second filter element, and the cathode of the 4th diode passes through described respectively
15th capacitor and the 16th capacity earth line, the cathode of the 4th diode pass sequentially through the thirteenth resistor and
The 14th resistance eutral grounding line, the anode of the 4th diode connect the switch pin of the boosting master chip, the boosting
The compensation pin of master chip passes sequentially through the twelfth resistor and the 12nd capacity earth line, the boosting master chip
Enabled pin is grounded by the eleventh resistor, and the enabled pin of the boosting master chip connects described control unit, described
The supply input pin of boosting master chip connects the cathode of the third diode, and passes through the 13rd capacity earth line, institute
The ground wire pin ground line of boosting master chip is stated, the feedback pin of the boosting master chip connects in the thirteenth resistor and described
Between 14th resistance, the soft start control pin of the boosting master chip passes through the 8th capacity earth line, the boosting
For the switching frequency setting pin of master chip by the tenth resistance eutral grounding line, the voltage input pin of the boosting master chip is logical
Cross the 14th capacity earth line.
5. power transfer device described in any claim in -4 according to claim 1, which is characterized in that the power supply switching
Device further includes the 6th diode, and the anode of the 6th diode connects the Vehicular accumulator cell, the yin of the 6th diode
Pole connects the power cell.
6. power transfer device according to claim 5, which is characterized in that the power transfer device further includes the seven or two
Pole pipe, the anode of the 7th diode connect the output end of the boosting unit, and the cathode of the 7th diode connects the function
Rate unit.
7. a kind of vehicle-mounted T-BOX, which is characterized in that cut including power supply described in any claim according to claim 1-6
Changing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822150010.XU CN209200761U (en) | 2018-12-20 | 2018-12-20 | The power transfer device of vehicle-mounted T-BOX, vehicle-mounted T-BOX |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822150010.XU CN209200761U (en) | 2018-12-20 | 2018-12-20 | The power transfer device of vehicle-mounted T-BOX, vehicle-mounted T-BOX |
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|---|---|
| CN209200761U true CN209200761U (en) | 2019-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822150010.XU Active CN209200761U (en) | 2018-12-20 | 2018-12-20 | The power transfer device of vehicle-mounted T-BOX, vehicle-mounted T-BOX |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111293780A (en) * | 2020-03-20 | 2020-06-16 | 东软睿驰汽车技术（沈阳）有限公司 | Power supply device and vehicle-mounted information system comprising same |
| CN111614521A (en) * | 2020-05-29 | 2020-09-01 | 北京小马智行科技有限公司 | Monitoring method and device for mobile carrier, storage medium and processor |
-
2018
- 2018-12-20 CN CN201822150010.XU patent/CN209200761U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111293780A (en) * | 2020-03-20 | 2020-06-16 | 东软睿驰汽车技术（沈阳）有限公司 | Power supply device and vehicle-mounted information system comprising same |
| CN111293780B (en) * | 2020-03-20 | 2022-05-10 | 东软睿驰汽车技术（沈阳）有限公司 | Power supply device and vehicle-mounted information system comprising same |
| CN111614521A (en) * | 2020-05-29 | 2020-09-01 | 北京小马智行科技有限公司 | Monitoring method and device for mobile carrier, storage medium and processor |
| CN111614521B (en) * | 2020-05-29 | 2022-12-02 | 北京小马智行科技有限公司 | Monitoring method and device for mobile carrier, storage medium and processor |
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