CN211480970U

CN211480970U - Mobile power supply mainboard circuit for automobile emergency starting

Info

Publication number: CN211480970U
Application number: CN202020348151.7U
Authority: CN
Inventors: 谭春根
Original assignee: Dongguan Zhenghui New Energy Co ltd
Current assignee: Dongguan Zhenghui New Energy Co ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-09-11
Anticipated expiration: 2030-03-19

Abstract

A mobile power supply mainboard circuit for automobile emergency starting comprises a control module, a charging input detection module, a boosting module, a voltage reduction module, a charging and discharging module, an output module and an electric quantity indication module; the control module is respectively connected with the electric quantity indicating module and the charging and discharging module; the charge-discharge module is also connected with the voltage boosting module and the voltage reducing module; the boosting module is also respectively connected with the control module and the charging input detection module; the voltage reduction module is also connected with the output module, and an output state indication module is also connected between the voltage reduction module and the output module; through the change of the voltage input and output of the voltage boosting module and the voltage reducing module, and the output state indicating module and the electric quantity indicating module are utilized, the state of the charging and discharging process can be reflected, and the convenience and the safety in use are further improved.

Description

Mobile power supply mainboard circuit for automobile emergency starting

Technical Field

The utility model belongs to the technical field of the car emergency starting technique and specifically relates to a portable power source mainboard circuit for emergent start-up of car is related to.

Background

With the progress of social development, more and more people own their own automobiles. Nowadays, automobiles are very popular, and as a novel vehicle, the automobile brings great convenience to people. The automobile technology is mature enough to enable self-driving tour to be fashionable, but the automobile can be started in the field possibly, even dangerous, particularly, the automobile can not be started frequently in cold weather, at the moment, the automobile emergency starting power supply is produced, but the main board circuit of the existing automobile emergency starting power supply is simple in structure and cannot reasonably reflect the state of a charging and discharging process, and therefore the automobile emergency starting power supply has the defects.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.

A mobile power supply mainboard circuit for automobile emergency starting comprises a control module, a charging input detection module, a boosting module, a voltage reduction module, a charging and discharging module, an output module and an electric quantity indication module; the control module is respectively connected with the electric quantity indicating module and the charging and discharging module; the charge-discharge module is also connected with the voltage boosting module and the voltage reducing module; the boosting module is also respectively connected with the control module and the charging input detection module; the voltage reduction module is further connected with the output module, and an output state indication module is further connected between the voltage reduction module and the output module.

Preferably, the control module includes a chip U2 with a model number of "SC 91F 722M" and further includes a low dropout regulator T2, a 20 th pin of the chip U2 is connected to a 3 rd pin of the dropout regulator, and a 1 st pin of the low dropout regulator T2 is further connected to a battery.

Preferably, the power indication module includes an LED1, an LED2, an LED3, an LED4, an LED5, an LED6, an LED7, an LED8, a resistor R41, a resistor R43, a resistor R44 and a resistor R45, cathode pins of the LED1, the LED2, the LED3, the LED4, the LED5, the LED6, the LED7 and the LED8 are grounded, anode pins of the LED1 and the LED2 are connected to a pin 3 of the chip U2 through the resistor R41, anode pins of the LED3 and the LED4 are connected to a pin 4 of the chip U2 through the resistor R43, anode pins of the LED5 and the LED6 are connected to a pin 8 of the chip U2 through the resistor R44, and anode pins of the LED7 and the LED8 are connected to a pin 9 of the chip U2 through the resistor R45.

Preferably, the charging and discharging module includes a MOS transistor P1, a MOS transistor P2, a resistor R24, a resistor R33, a transistor Q2, a capacitor C19, a resistor R40, an induction coil L2, a capacitor C6, and a capacitor C5, a battery is connected to a D terminal of the MOS transistor P1, a G terminal of the MOS transistor P1 is connected to a G terminal of the MOS transistor P2, an S terminal of the MOS transistor P2 is connected to an S terminal of the MOS transistor P2, the S terminals and the G terminals of the MOS transistor P2 and the MOS transistor P2 are further connected to the resistor R2, the D terminal of the MOS transistor P2 is connected to the boost module and the buck module through the induction coil L2, the induction coil L2 is connected to the capacitor C2, the G terminals of the MOS transistor P2 and the MOS transistor P2 are further connected to the collector of the triode 2 through the resistor R2, a base of the triode P2 is connected to the chip U7 through the resistor R2, a base of the emitter of the triode P2 is connected to the emitter of the transistor P2, and the emitter.

Preferably, the boost module includes a chip U1 with a model number "PL 8323", a 12 th pin of the chip U1 is connected with a resistor R5, the resistor R5 is connected with a MOS transistor N5, a G end of the MOS transistor N5 is connected with the resistor R5, a resistor R5 and a capacitor C5 are further connected across between a D end and an S end of the MOS transistor N5, an S end of the MOS transistor N5 is further connected with the resistor R5, the resistor R5 is connected with an 8 th pin of the chip U5, a resistor R5 and a resistor R5 are further connected across between the D end and the S end of the MOS transistor N5, the resistor R5 and the resistor R5 are grounded, the D end of the MOS transistor N5 is further connected with the capacitor C5 and the capacitor C5, the capacitor C5 and the capacitor C5 are connected with a diode D5 and a charge-discharge module 5; the 5 th pin of the chip U1 is connected with a diode D3 and a capacitor C17, the diode D3 is connected with a resistor R35 and a resistor R36, the resistor R36 is connected with a capacitor C17, the resistor R36 and the capacitor C17 are grounded, and the resistor R35 is connected with the 14 th pin of the chip U2.

Preferably, the charging input detection module comprises a capacitor C11, a resistor R12, a resistor R13, a resistor R9, a capacitor C8, a capacitor C7 and an induction coil L1; the capacitor C11, the resistor R9 and the resistor R12 are connected with a 13 th pin of a chip U2, the capacitor C11 and the resistor R12 are further connected with an input interface, a 4 th pin and a 5 th pin of the input interface are connected with the capacitor C11 and the resistor R12, the capacitor C11 and the resistor R12 are connected with a 2 nd pin of the chip U1 through the resistor R13, the resistor R9 is connected with a D end of an MOS (metal oxide semiconductor) transistor through an induction coil L1, the resistor R9 is connected with the chip U1 through the capacitor C7 and the capacitor C8, and the space between the capacitor C7 and the capacitor C8 is also grounded.

Preferably, the voltage reduction module includes a chip U3 with a model number of "8535" and a chip U4 with a model number of "1100A", a pin 2 of the chip U3 is connected to the charge and discharge module, a pin 3 of the chip U3 is connected to an induction coil L4, the induction coil L4 is connected to an induction coil L5, the induction coil L5 is connected to the output module and the output state indication module, the induction coil L5 is further connected to a capacitor C3 and a resistor R52, the capacitor C3 is grounded, the resistor R52 is connected to a pin 5 of the chip U4, a pin 5 of the chip U4 is further connected to a capacitor C29, the capacitor C29 is grounded, and the pin 5 of the chip U3 is further connected to a pin 3 of the chip U4.

Preferably, the output module comprises an output interface USB2 and an output interface USB3, the 1 st pin of the output interface USB2 and the output interface USB3 is connected with the voltage reduction module, and the 4 th pin of the output interface USB2 and the output interface USB3 is connected with the 12 th pin of the chip U2.

Preferably, the output state indicating module includes a resistor R47, a resistor R49, an LED9, and a MOS transistor N2, the resistor R47 is connected to the step-down circuit, the resistor R49 is connected to the 2 nd pin of the chip U2, the anode of the LED9 is connected to the resistor R47, the cathode of the LED9 is connected to the D terminal of the MOS transistor N2, the S terminal of the MOS transistor N2 is grounded, and the G terminal of the MOS transistor N2 is connected to the resistor R49.

Compared with the prior art, the beneficial effects of the utility model are that:

through the change of the voltage input and output of the voltage boosting module and the voltage reducing module, and the output state indicating module and the electric quantity indicating module are utilized, the state of the charging and discharging process can be reflected, and the convenience and the safety in use are further improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a block diagram of the present invention.

Fig. 2 is a schematic diagram of the circuit structure of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, in an embodiment of the present invention, a mobile power supply motherboard circuit for emergency starting of an automobile includes a control module 1, and further includes a charging input detection module 6, a voltage boosting module 5, a voltage reducing module 9, a charging and discharging module 4, an output module 10, and an electric quantity indication module 2; the control module 1 is respectively connected with the electric quantity indication module 2 and the charging and discharging module 4; the charge and discharge module 4 is also connected with the voltage boosting module 5 and the voltage reducing module 9; the boosting module 5 is also respectively connected with the control module 1 and the charging input detection module 6; the voltage reduction module 9 is further connected with the output module 10, and an output state indication module 8 is further connected between the voltage reduction module 9 and the output module 10.

In this embodiment, the output state indicating module 8 and the electric quantity indicating module 2 can reflect the state of the charge and discharge process through the change of the voltage input and output of the voltage boosting module 5 and the voltage reducing module 9, and the convenience and the safety of use are further improved.

As further shown in fig. 2, the control module 1 includes a chip U2 with a model "SC 91F 722M", and further includes a low dropout regulator T2, a 20 th pin of the chip U2 is connected to a 3 rd pin of the differential voltage regulator, and a 1 st pin of the low dropout regulator T2 is further connected to a battery 3.

As further shown in fig. 2, the power indication module 2 includes an LED1, an LED2, an LED3, an LED4, an LED5, an LED6, an LED7, an LED8, a resistor R41, a resistor R43, a resistor R44, and a resistor R45, cathode pins of the LED1, the LED2, the LED3, the LED4, the LED5, the LED6, the LED7, and the LED8 are grounded, anode pins of the LED1 and the LED2 are connected to a 3 rd pin of the chip U2 through the resistor R41, anode pins of the LED3 and the LED4 are connected to a 4 th pin of the chip U2 through the resistor R43, anode pins of the LED5 and the LED6 are connected to an 8 th pin of the chip U2 through the resistor R44, and anode pins of the LED7 and the LED8 are connected to a 9 th pin of the chip U2 through the resistor R45.

Further as shown in fig. 2, the charging and discharging module 4 includes a MOS transistor P1, a MOS transistor P2, a resistor R24, a resistor R33, a transistor Q2, a capacitor C19, a resistor R40, an inductor L2, a capacitor C6, and a capacitor C5, the D end of the MOS tube P1 is connected with the battery 3, the G end of the MOS tube P1 is connected with the G end of the MOS tube P2, the S end of the MOS tube P1 is connected with the S end of the MOS tube P2, and the S terminal and the G terminal of the MOS transistor P1 and the MOS transistor P2 are also connected with a resistor R24, the D end of the MOS tube P2 is connected with the boosting module 5 and the step-down module 9 through an induction coil L2, the induction coil L2 is grounded through a capacitor C6 and a capacitor C5, the G ends of the MOS tube P1 and the MOS tube P2 are connected with a collector of the triode through a resistor R33, a base of the triode is connected with a 7 th pin of a chip U2 through a resistor R40, the base and an emitter of the triode are also connected with the capacitor C19, and an emitter of the triode is grounded.

As further shown in fig. 2, the boost module 5 includes a chip U1 with a model number "PL 8323", a 12 th pin of the chip U1 is connected with a resistor R5, the resistor R5 is connected with a MOS transistor N5, a G end of the MOS transistor N5 is connected with the resistor R5, a resistor R5 and a capacitor C5 are further connected across between a D end and an S end of the MOS transistor N5, an S end of the MOS transistor N5 is further connected with the resistor R5, the resistor R5 is connected with an 8 th pin of the chip U5, a resistor R5 and a resistor R5 are further connected across between the D end and the S end of the MOS transistor N5, the resistor R5 and the resistor R5 are grounded, the D end of the MOS transistor N5 is further connected with a capacitor C5 and a capacitor C5, the capacitor C5 and the capacitor C5 are connected with a diode D5 and a diode D5, the diode D5 is connected with a charging and discharging module 364; the 5 th pin of the chip U1 is connected with a diode D3 and a capacitor C17, the diode D3 is connected with a resistor R35 and a resistor R36, the resistor R36 is connected with a capacitor C17, the resistor R36 and the capacitor C17 are grounded, and the resistor R35 is connected with the 14 th pin of the chip U2.

As further shown in fig. 2, the charging input detection module 6 includes a capacitor C11, a resistor R12, a resistor R13, a resistor R9, a capacitor C8, a capacitor C7, and an induction coil L1; the capacitor C11, the resistor R9 and the resistor R12 are connected with a 13 th pin of a chip U2, the capacitor C11 and the resistor R12 are further connected with an input interface 7, a 4 th pin and a 5 th pin of the input interface 7 are connected with a capacitor C11 and a resistor R12, the capacitor C11 and the resistor R12 are connected with a 2 nd pin of the chip U1 through the resistor R13, the resistor R9 is connected with a D end of an MOS (metal oxide semiconductor) tube through an induction coil L1, the resistor R9 is connected with the chip U1 through the capacitor C7 and the capacitor C8, and the space between the capacitor C7 and the capacitor C8 is also grounded.

As further shown in fig. 2, the voltage dropping module 9 includes a chip U3 with a model number of "8535" and a chip U4 with a model number of "1100A", a 2 nd pin of the chip U3 is connected to the charging and discharging module 4, a 3 rd pin of the chip U3 is connected to the induction coil L4, the induction coil L4 is connected to the induction coil L5, the induction coil L5 is connected to the output module 10 and the output state indicating module 8, the induction coil L5 is further connected to the capacitor C3 and the resistor R52, the capacitor C3 is grounded, the resistor R52 is connected to a 5 th pin of the chip U4, a 5 th pin of the chip U4 is further connected to the capacitor C29, the capacitor C29 is grounded, and a 5 th pin of the chip U3 is further connected to a 3 rd pin of the chip U4.

As further shown in fig. 2, the output module 10 includes an output interface USB2 and an output interface USB3, the 1 st pins of the output interface USB2 and the output interface USB3 are connected to the voltage-decreasing module 9, and the 4 th pins of the output interface USB2 and the output interface USB3 are connected to the 12 th pin of the chip U2.

As further shown in fig. 2, the output state indicating module 8 includes a resistor R47, a resistor R49, an LED9, and a MOS transistor N2, wherein the resistor R47 is connected to the step-down circuit, the resistor R49 is connected to the 2 nd pin of the chip U2, the anode of the LED9 is connected to the resistor R47, the cathode of the LED9 is connected to the D terminal of the MOS transistor N2, the S terminal of the MOS transistor N2 is grounded, and the G terminal of the MOS transistor N2 is connected to the resistor R49.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A mobile power supply mainboard circuit for automobile emergency starting comprises a control module, and is characterized by further comprising a charging input detection module, a boosting module, a voltage reducing module, a charging and discharging module, an output module and an electric quantity indicating module; the control module is respectively connected with the electric quantity indicating module and the charging and discharging module; the charge-discharge module is also connected with the voltage boosting module and the voltage reducing module; the boosting module is also respectively connected with the control module and the charging input detection module; the voltage reduction module is further connected with the output module, and an output state indication module is further connected between the voltage reduction module and the output module.

2. The main board circuit of a mobile power supply for emergency starting of an automobile according to claim 1, wherein the control module comprises a chip U2 with a model number of "SC 91F 722M", and further comprises a low dropout regulator T2, a 20 th pin of the chip U2 is connected with a 3 rd pin of the offset regulator, and a 1 st pin of the low dropout regulator T2 is further connected with a battery.

3. The main board circuit of a mobile power supply for emergency starting of an automobile according to claim 2, wherein the power indication module comprises an LED1, an LED2, an LED3, an LED4, an LED5, an LED6, an LED7, an LED8, a resistor R41, a resistor R43, a resistor R44 and a resistor R45, cathode pins of the LED1, the LED2, the LED3, the LED4, the LED5, the LED6, the LED7 and the LED8 are grounded, anode pins of the LED1 and the LED2 are connected to the 3 rd pin of the chip U2 through a resistor R41, anode pins of the LED3 and the LED4 are connected to the 4 th pin of the chip U2 through a resistor R43, anode pins of the LED5 and the LED6 are connected to the 8 th pin of the chip U2 through a resistor R44, and anode pins of the LED7 and the LED8 are connected to the U9 th pin of the chip U2 through a resistor R45.

4. The main board circuit of a mobile power supply for emergency starting of an automobile according to claim 2, wherein the charge-discharge module includes a transistor P1, a transistor P2, a resistor R24, a resistor R33, a transistor Q2, a capacitor C19, a resistor R40, an inductor L2, a capacitor C6, and a capacitor C5, the D terminal of the transistor P1 is connected with a battery, the G terminal of the transistor P1 is connected with the G terminal of the transistor P2, the S terminal of the transistor P2 is connected with the S terminal of the transistor P2, the terminals S and G of the transistor P2 and the transistor P2 are further connected with the resistor R2, the D terminal of the transistor P2 is connected with the boost module and the buck module through the inductor L2, the inductor L2 is connected with the ground through the capacitor C2 and the capacitor C2, the G terminals of the transistor P2 and the transistor P2 are connected with the base of the transistor R2, the emitter of the transistor P2 and the transistor P2 are further connected with the base of the transistor P2 and the transistor U2, and the emitter of the triode is grounded.

5. The main board circuit of the mobile power supply for the emergency starting of the automobile according to claim 2, the boost module is characterized by comprising a chip U1 with the model number of PL8323, the 12 th pin of the chip U1 is connected with a resistor R5, a resistor R5 is connected with a MOS tube N1, the G end of the MOS tube N1 is connected with a resistor R5, a resistor R4 and a capacitor C9 are further connected between the D end and the S end of the MOS tube N1 in a bridging mode, the S end of the MOS tube N1 is further connected with a resistor R23, the resistor R23 is connected with the 8 th pin of the chip U1, a resistor R1 and a resistor R11 are further connected between the D end and the S end of the MOS tube N1 in a bridging mode, the resistor R1 and the resistor R11 are grounded, the D end of the MOS tube N1 is further connected with a capacitor C2 and a capacitor C3, the capacitor C2 and the capacitor C3 are connected with a diode D2 and a resistor R3, the resistor R3 is connected with a capacitor C1, the capacitor C1 is connected with a diode D2, and the capacitor C1 is connected with a diode D2; the 5 th pin of the chip U1 is connected with a diode D3 and a capacitor C17, the diode D3 is connected with a resistor R35 and a resistor R36, the resistor R36 is connected with a capacitor C17, the resistor R36 and the capacitor C17 are grounded, and the resistor R35 is connected with the 14 th pin of the chip U2.

6. The main board circuit of the mobile power supply for the emergency starting of the automobile according to claim 5, wherein the charging input detection module comprises a capacitor C11, a resistor R12, a resistor R13, a resistor R9, a capacitor C8, a capacitor C7 and an induction coil L1; the capacitor C11, the resistor R9 and the resistor R12 are connected with a 13 th pin of a chip U2, the capacitor C11 and the resistor R12 are further connected with an input interface, a 4 th pin and a 5 th pin of the input interface are connected with the capacitor C11 and the resistor R12, the capacitor C11 and the resistor R12 are connected with a 2 nd pin of the chip U1 through the resistor R13, the resistor R9 is connected with a D end of an MOS (metal oxide semiconductor) transistor through an induction coil L1, the resistor R9 is connected with the chip U1 through the capacitor C7 and the capacitor C8, and the space between the capacitor C7 and the capacitor C8 is also grounded.

7. The main board circuit of the mobile power supply for the emergency starting of the automobile as claimed in claim 5, wherein the voltage reduction module includes a chip U3 with a model number of "8535" and a chip U4 with a model number of "1100A", a 2 nd pin of the chip U3 is connected with the charging and discharging module, a 3 rd pin of the chip U3 is connected with an induction coil L4, an induction coil L5 is connected with the induction coil L4, the induction coil L5 is connected with the output module and the output state indicating module, the induction coil L5 is further connected with a capacitor C3 and a resistor R52, the capacitor C3 is grounded, the resistor R52 is connected with a 5 th pin of the chip U4, a 5 th pin of the chip U4 is further connected with a capacitor C29, the capacitor C29 is grounded, and the 5 th pin of the chip U3 is further connected with a 3 rd pin of the chip U4.

8. The main board circuit of the mobile power supply for the emergency starting of the automobile as claimed in claim 7, wherein the output module comprises an output interface USB2 and an output interface USB3, the 1 st pin of the output interface USB2 and the output interface USB3 is connected with the voltage reduction module, and the 4 th pin of the output interface USB2 and the output interface USB3 is connected with the 12 th pin of the chip U2.

9. The main board circuit of the mobile power supply for the emergency starting of the automobile of claim 7, wherein the output state indicating module comprises a resistor R47, a resistor R49, an LED9 and a MOS transistor N2, the resistor R47 is connected with the voltage reduction circuit, the resistor R49 is connected with the No. 2 pin of the chip U2, the anode of the LED9 is connected with the resistor R47, the cathode of the LED9 is connected with the D end of the MOS transistor N2, the S end of the MOS transistor N2 is grounded, and the G end of the MOS transistor N2 is connected with the resistor R49.