CN211656434U

CN211656434U - Power supply structure for setting output power by detecting battery voltage

Info

Publication number: CN211656434U
Application number: CN202020354735.5U
Authority: CN
Inventors: 李学军; 雷云波; 李志科
Original assignee: Shenzhen Watt Zhihui Technology Co ltd
Current assignee: Shenzhen Watt Zhihui Technology Co ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-10-09
Anticipated expiration: 2030-03-19

Abstract

The utility model discloses a power structure through detecting battery voltage and setting for output, including charging circuit, the battery, discharge circuit, lamps and lanterns and MCU, charging circuit is connected with the battery through first data transmission line, the battery passes through second data transmission line and is connected with discharge circuit, discharge circuit is connected with lamps and lanterns through third data transmission line, lamps and lanterns pass through fourth data transmission line and are connected with MCU, MCU is connected with first data transmission line and second data transmission line through fifth data transmission line and sixth data transmission line respectively, pass through seventh data transmission line and eighth data transmission line respectively between MCU and the battery and be connected, still through ninth data transmission line connection between MCU and the discharge circuit. Has the advantages that: the output power of the power supply can be changed by replacing the battery, the output voltage and current can be automatically adjusted, the compatibility and the practicability are high, a large amount of stock is not needed, and the cost pressure is reduced.

Description

Power supply structure for setting output power by detecting battery voltage

Technical Field

The utility model relates to an emergency power supply technical field particularly, relates to a power structure through detecting battery voltage settlement output.

Background

Illumination that is enabled due to a power failure for normal illumination is referred to as emergency illumination. Emergency lighting differs from general lighting in that it includes: standby lighting, evacuation lighting and safety lighting. The conversion time is determined according to actual engineering and relevant specification. Emergency lighting is an important safety facility for modern public and industrial buildings, which is closely related to personal safety and building safety. When a fire or other disasters happen to a building and the power supply is interrupted, emergency lighting plays an important role in evacuation of personnel, fire rescue work, important production, continuous operation of work or necessary operation and disposal.

As shown in fig. 3, the existing emergency power supply includes a charging circuit, a battery, a discharging circuit, a lamp and an MCU, the charging circuit is connected with the battery through a first data transmission line, the battery is connected with the discharging circuit through a second data transmission line, the discharging circuit is connected with the lamp through a third data transmission line, the MCU is connected with the first data transmission line and the second data transmission line through a fourth data transmission line and a fifth data transmission line respectively, the MCU is connected with the battery through a sixth data transmission line, and the working principle is as follows: when the power supply is normal, the charging circuit charges the battery through the first data transmission line, and the discharging is disconnected; when the power supply fails, the charging is disconnected, and the battery supplies power to the discharging circuit through the second data transmission line; the MCU detects whether the power supply is normal or not through the fourth data transmission line to control the charging of the battery; the MCU detects whether the battery voltage is in a normal working range through the sixth data transmission line to protect the battery; the MCU detects a power supply fault through a fifth data transmission line to control the battery to discharge; and the discharge circuit transmits the second data to the lamp to supply power.

However, when the emergency power supply is designed, different battery capacities correspond to different output powers, in practical application, lamps with different powers need to be replaced by different power supplies, the lamps in the same power section have inconsistent parameters such as voltage and current of the power supplies due to inconsistent parallel numbers of lamp beads of different manufacturers, the voltage and current of the power supplies need to be adjusted, partial hardware is modified to match the lamps of various manufacturers, operation is unchanged, time consumption is long, the types of products are multiple, management is inconvenient, inventory is large, and cost is high.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

To the problem among the correlation technique, in order to solve the problem that the power can not match lamps and lanterns automatically, reduce product stock, reduce cost, the utility model provides a through detecting battery voltage sets for output's power structure, through the output voltage electric current automatic adjustment of the power of setting for to the power to overcome the above-mentioned technical problem that prior art exists.

Therefore, the utility model discloses a specific technical scheme as follows:

a power supply structure for setting output power by detecting battery voltage comprises a charging circuit, a battery, a discharging circuit, a lamp and an MCU, wherein the charging circuit is connected with the battery through a first data transmission line, the battery is connected with the discharging circuit through a second data transmission line, the discharging circuit is connected with the lamp through a third data transmission line, the lamp is connected with the MCU through a fourth data transmission line, the MCU is respectively connected with the first data transmission line and the second data transmission line through a fifth data transmission line and a sixth data transmission line, the MCU is respectively connected with the battery through a seventh data transmission line and an eighth data transmission line, and the MCU is also connected with the discharging circuit through a ninth data transmission line;

the circuit diagram among the battery, the discharge circuit, the lamp and the MCU comprises a battery BAT, a single chip microcomputer MCU, a chip IC2, a chip U1, a lamp LED, a triode Q, a switch S, transformers T0, T1, diodes D1, D2, D3, capacitors C1, C2, C3, resistors R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19 and R20;

wherein, the second pin of the MCU is connected with one side of a resistor R4, the other side of a resistor R4 is respectively connected with one side of a resistor R2 and one side of a resistor R3, the other side of a resistor R2 is connected with a resistor R1, the other side of a resistor R3 is grounded, the third pin of the MCU is connected with one side of a resistor R8, the other side of the resistor R8 is respectively connected with one side of a resistor R7, one side of the resistor R9 and one side of a capacitor C2, the other side of the resistor R7 is connected with the other side of a capacitor C2 and grounded, the other side of the resistor R9 is connected with a resistor R10, the fifth pin of the MCU is respectively connected with one side of a resistor R6 and one side of a capacitor C1 and grounded, the other side of a resistor R6 is respectively connected with one side of a resistor R5, the other side of a capacitor C1 and the second pin of the chip IC2, the other side of the resistor R5 is connected with the sixth pin of the MCU 11, the other side of the resistor R11 is connected with a switch S;

the battery BAT is respectively connected with the switch S and the cathode of the diode D2, the anode of the diode D2 is respectively connected with one side of the capacitor C3 and the cathode of the diode D1, the other side of the capacitor C3 and the cathode of the diode D1 are both connected with the transformer T0, and the other side of the capacitor C3 is grounded;

a first pin of the chip IC2 is connected with one side of a resistor R12, the other side of the resistor R12 is connected with a cathode of a diode D3, an anode of the diode D3 is respectively connected with one side of a switch S, one side of a resistor R13 and a first input end of a transformer T1, a third pin of the chip IC2 is respectively connected with one side of a resistor R15 and one side of a resistor R14, the other side of a resistor R15 is grounded, the other side of a resistor R14 is connected with the other side of a resistor R13, a fourth pin of the chip IC2 is connected with one side of a resistor R16, the other side of the resistor R16 is connected with a base of a triode Q, an emitter of the triode Q is respectively connected with one side of a resistor R17, one side of a resistor R18, a sixth pin of the chip IC2 and a third pin of a chip U1, a collector of the triode Q is connected with a first output end of a transformer T1, and a plurality of lamps are connected in series between, the fifth pin of the chip IC2 is connected to the other side of the resistor R17, the other side of the resistor R18, and the fourth pin of the chip U1, and is grounded, the first pin of the chip U1 is connected to one side of the resistor R19, the other side of the resistor R19 is connected to one side of the resistor R20, and the second pin of the chip U1 is connected to the other side of the resistor R20, and is grounded.

Further, a first pin of the battery BAT is a detection pin BATCHECK, a second pin of the battery BAT is a positive electrode Vbat, and a third pin of the battery BAT is a negative electrode GND.

The utility model has the advantages that:

1. through the design of the utility model, when the power supply is matched with lamps with different powers, the power of the lamps can be matched only by replacing batteries with different capacities, the output power of the power supply can be changed, the power supply does not need to be redesigned, and the practicability is strong;

2. to the lamps and lanterns of the different voltage electric current of same power, the utility model discloses can realize the required power of customer through singlechip automated inspection output voltage electric current and adjustment voltage electric current, need not change peripheral circuit and satisfy the requirement, the coverage is wide, and is compatible strong, and need not be equipped with a large amount of stocks, reduce cost pressure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and 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 creative efforts.

Fig. 1 is a block diagram of a power supply configuration for setting output power by detecting battery voltage according to an embodiment of the present invention;

fig. 2 is a circuit diagram between a battery, a discharge circuit, a lamp and an MCU in a power supply structure for setting an output power by detecting a battery voltage according to an embodiment of the present invention;

fig. 3 is a block diagram of an emergency power supply in the prior art.

In the figure:

1. a charging circuit; 2. a battery; 3. a discharge circuit; 4. a light fixture; 5. MCU; 6. a first data transmission line; 7. a second data transmission line; 8. a third data transmission line; 9. a fourth data transmission line; 10. A fifth data transmission line; 11. a sixth data transmission line; 12. a seventh data transmission line; 13. an eighth data transmission line; 14. and a ninth data transmission line.

Detailed Description

For further explanation of the embodiments, the drawings are provided as part of the disclosure and serve primarily to illustrate the embodiments and, together with the description, to explain the principles of operation of the embodiments, and to provide further explanation of the invention and advantages thereof, it will be understood by those skilled in the art that various other embodiments and advantages of the invention are possible, and that elements in the drawings are not to scale and that like reference numerals are generally used to designate like elements.

According to the utility model discloses an embodiment provides a power structure through detecting battery voltage and setting for output.

The invention will now be further described with reference to the accompanying drawings and specific embodiments, as shown in figures 1-2, according to the utility model discloses power supply structure through detecting battery voltage and setting for output, including charging circuit 1, battery 2, discharge circuit 3, lamps and lanterns 4 and MCU5, charging circuit 1 is connected with battery 2 through first data transmission line 6, battery 2 is connected with discharge circuit 3 through second data transmission line 7, discharge circuit 3 is connected with lamps and lanterns 4 through third data transmission line 8, lamps and lanterns 4 are connected with MCU5 through fourth data transmission line 9, MCU5 is connected with first data transmission line 6 and second data transmission line 7 through fifth data transmission line 10 and sixth data transmission line 11 respectively, be connected through seventh data transmission line 12 and eighth data transmission line 13 between MCU5 and the battery 2 respectively, still be connected through ninth data transmission line 14 between MCU5 and the discharge circuit 3;

the circuit diagram between the battery 2, the discharge circuit 3, the lamp 4 and the MCU5 comprises a battery BAT, a single chip microcomputer MCU, a chip IC2, a chip U1, a lamp LED, a triode Q, a switch S, transformers T0, T1, diodes D1, D2, capacitors C2, a resistor R2, and R2;

a first pin of the battery BAT is a detection pin BATCHECK, a second pin of the battery BAT is a positive electrode Vbat, a third pin of the battery BAT is a negative electrode GND, the second pin of the battery BAT is respectively connected with the switch S and the negative electrode of the diode D2, the positive electrode of the diode D2 is respectively connected with one side of the capacitor C3 and the negative electrode of the diode D1, the other side of the capacitor C3 and the negative electrode of the diode D1 are both connected with the transformer T0, and the other side of the capacitor C3 is grounded;

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

Compare in current scheme, the utility model discloses an increased fourth data transmission line 9, eighth data transmission line 13 and ninth data transmission line 14 and realized three new functions, the principle as follows:

in this embodiment, the chip detects the voltage and current output by the power supply through the fourth data transmission line 9:

1) the output voltage Vo is divided by resistors R10, R9 and R7, and the pin 3 of the MCU detects the output voltage by a resistor R8;

2) the output current Io samples two ends of R17 and R18 through U1, the output end divides voltage through R19 and R20, and 4 pins of the MCU detect signals after voltage division;

3) the power supply output range is characterized in that the power supply output range is that the output voltage range Vo is Vmin-Vmax, the output current range Io is that the output current range Imin-Imax, the output power is P, and P is Vmin Imax Imin;

the singlechip detects the capacity of battery through eighth data transmission line 13 and judges the power of whole power in this implementation, and the detection foot of battery is BATCHECK, and the battery positive pole is Vbat, and the negative pole of battery is GND, and BATCHECK sets up different powers through different connection:

1) when the BATCHECK pin is short-circuited with the positive electrode Vbat of the battery, the voltage of the Vbat is divided by R2 and R3 to obtain V1, the pin 2 of the MCU detects the divided voltage V1 through R4, and the power P1 corresponds to V1;

2) when the BATCHECK pin is short-circuited with the battery cathode GND, the MCU detects that the voltage is V2 (0V), and V2 corresponds to power P2;

3) when the BATCHECK pin is suspended, the Vbat voltage is divided into V3 through R1, R2 and R3, and the 2 pin of the MCU detects the divided voltage V3 and V3 corresponding to power P3 through R4;

4) the power is set through the MCU and software, and for different powers, only the battery needs to be replaced, and the battery is installed in a plugging mode and is convenient to replace.

In this embodiment, under the effect of the ninth data transmission line 14, when the MCU detects the detection voltage Vsen of the battery capacity, the output power is set to P, and the output power Vo Io of the power supply is detected, the PWM signal of the MCU is divided and filtered by the resistors R5, R6 and the capacitor C1 and then provided to the Iset pin of the IC2, and the output current is adjusted by controlling the voltage of the Iset pin:

1) when P is Vo Io, the current does not need to be adjusted, and the Iset pin voltage is unchanged;

2) when P is less than Vo Io, the MCU reduces the Iset pin voltage to reduce the output current Io, and finally the output current Io is regulated to be P is less than Vo Io;

3) when P is larger than Vo Io, the MCU increases the Iset pin voltage to increase the output current Io, and finally the output current Io is regulated to be P;

in summary, with the aid of the technical solution of the present invention, by the design of the present invention, when the power supply is matched with lamps with different powers, the power of the lamps can be matched only by replacing batteries with different capacities, the output power of the power supply can be changed, the power supply does not need to be redesigned, and the practicability is strong; in addition, to the lamps and lanterns with the different voltage electric current of power, the utility model discloses can realize the required power of customer through singlechip automated inspection output voltage electric current and adjustment voltage electric current, need not change peripheral circuit and satisfy the requirement, coverage is wide, and is compatible strong, and need not be equipped with a large amount of stocks, reduce cost pressure.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a set up output's power structure through detection battery voltage, characterized in that, including charging circuit (1), battery (2), discharge circuit (3), lamps and lanterns (4) and MCU (5), charging circuit (1) through first data transmission line (6) with battery (2) are connected, battery (2) through second data transmission line (7) with discharge circuit (3) are connected, discharge circuit (3) through third data transmission line (8) with lamps and lanterns (4) are connected, lamps and lanterns (4) through fourth data transmission line (9) with MCU (5) are connected, MCU (5) respectively through fifth data transmission line (10) and sixth data transmission line (11) with first data transmission line (6) and second data transmission line (7) are connected, MCU (5) with battery (2) between respectively through seventh data transmission line (12) and eighth data transmission line (12), (data transmission line (7), (4), (5) 13) And the MCU (5) is connected with the discharge circuit (3) through a ninth data transmission line (14).

2. A power supply structure for setting output power by detecting battery voltage according to claim 1, characterized in that the circuit diagram between the battery (2), the discharge circuit (3), the lamp (4) and the MCU (5) includes a battery BAT, a single-chip MCU, a chip IC2, a chip U1, a lamp LED, a transistor Q, a switch S, a transformer T0, T1, a diode D1, D2, D3, a capacitor C1, C2, C3, a resistor R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20;

wherein, the second pin of the MCU is connected to one side of the resistor R4, the other side of the resistor R4 is connected to one side of the resistor R2 and one side of the resistor R3, the other side of the resistor R2 is connected to the resistor R1, the other side of the resistor R3 is grounded, the third pin of the MCU is connected to one side of the resistor R8, the other side of the resistor R8 is connected to one side of the resistor R7, one side of the resistor R9 and one side of the capacitor C2, the other side of the resistor R7 is connected to the other side of the capacitor C2 and grounded, the other side of the resistor R9 is connected to the resistor R10, the fifth pin of the MCU is connected to one side of the resistor R6 and one side of the capacitor C1 and grounded, the other side of the resistor R6 is connected to one side of the resistor R5, the other side of the capacitor C1 and the second pin of the IC chip 2, the other side of the resistor R5 is connected with a sixth pin of the single-chip microcomputer MCU, a seventh pin of the single-chip microcomputer MCU is connected with one side of the resistor R11, and the other side of the resistor R11 is connected with the switch S;

a first pin of the chip IC2 is connected to one side of the resistor R12, the other side of the resistor R12 is connected to a negative electrode of the diode D3, an anode of the diode D3 is connected to the switch S, one side of the resistor R13 and a first input terminal of the transformer T1, a third pin of the chip IC2 is connected to one side of the resistor R15 and one side of the resistor R14, the other side of the resistor R15 is grounded, the other side of the resistor R14 is connected to the other side of the resistor R13, a fourth pin of the chip IC2 is connected to one side of the resistor R16, the other side of the resistor R16 is connected to a base of the transistor Q, an emitter of the transistor Q is connected to one side of the resistor R17, one side of the resistor R18, a sixth pin of the chip IC2 and a third pin of the chip U1, a collector of the transistor Q is connected to a first output terminal of the transformer T1, and a plurality of lamps and lanterns LED have established ties between transformer T1's second input and the second output, chip IC 2's fifth pin respectively with resistance R17's opposite side, resistance R18's opposite side with chip U1's fourth pin is connected and ground connection, chip U1's first pin with one side of resistance R19 is connected, resistance R19's opposite side with one side of resistance R20 is connected, chip U1's second pin with resistance R20's opposite side is connected and ground connection.

3. The power supply structure for setting the output power by detecting the battery voltage as claimed in claim 2, wherein the first pin of the battery BAT is a detection pin BATCHECK, the second pin of the battery BAT is a positive electrode Vbat, and the third pin of the battery BAT is a negative electrode GND.