CN218102669U

CN218102669U - Charge-discharge control circuit

Info

Publication number: CN218102669U
Application number: CN202222158525.0U
Authority: CN
Inventors: 张宇舟; 沈阳武; 刘伟华; 陈真; 李佳煌; 彭双
Original assignee: Hunan High Innovation Energy Co ltd
Current assignee: Hunan High Innovation Energy Co ltd
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2022-12-20
Anticipated expiration: 2032-08-16

Abstract

The utility model discloses a charge-discharge control circuit, including battery, charge-discharge control module, stop charge control module, charge indicator and discharge indicator, charge-discharge control module respectively with the battery, charge indicator and discharge indicator are connected, stop charge control module and hold the battery electricity and be connected, charge-discharge control module includes time base NULL, triode and relay, time base NULL is connected with the battery after triode and the relay that concatenates. The charging and discharging control circuit provided by the utility model can monitor the working state of the storage battery in real time through the charging indicator lamp and the discharging indicator lamp, and is convenient to use; the charging, discharging and charging stop states of the storage battery can be automatically controlled through the charging and discharging control module and the charging stop control module, so that the service life of the storage battery is greatly prolonged; and the integrated chip is adopted, so that the size of the storage battery charging device is small.

Description

Charge-discharge control circuit

Technical Field

The utility model relates to a charge-discharge control technical field especially discloses a charge-discharge control circuit.

Background

The quality of the battery charging device directly affects the performance of the battery. The storage battery charging device is required to meet the special requirements of high charging efficiency and stable work due to the special working occasions of the storage battery. The existing storage battery charging device usually adopts a simple constant-current or constant-voltage mode, does not have the capability of monitoring the charging state in real time, is very easy to cause overcharge and irreversible damage to the storage battery, and greatly shortens the service life of the storage battery.

Therefore, the existing storage battery charging device often adopts a simple constant-current or constant-voltage mode, does not have the capability of monitoring the charging state in real time, is very easy to cause overcharge and irreversible damage to the storage battery, greatly shortens the service life of the storage battery, and is a technical problem to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

The utility model provides a charge-discharge control circuit aims at solving current battery charging device and often adopts simple constant current or constant voltage mode, does not possess real-time supervision charged state's ability, very easily causes the overcharge and causes irreversible damage to the battery, shortens the technical problem in the life-span of battery greatly.

The utility model relates to a charge-discharge control circuit, including battery, charge-discharge control module, stop charge control module, charge indicator and discharge indicator, charge-discharge control module is connected with battery, charge indicator and discharge indicator electricity respectively, stops charge control module and holds the electrical connection, and charge-discharge control module includes time base NULL, triode and relay, and time base NULL is connected with holding the electrical connection behind triode and the relay through concatenating.

Furthermore, the 3 rd pin of the time base integrated chip is connected with the base electrode of the triode through a first resistor, the 8 th pin of the time base integrated chip is connected with the power supply end, the 1 st pin of the time base integrated chip is grounded, the collector electrode of the triode is connected with the coil of the relay, and the emitter electrode of the triode is grounded; and a normally open contact of the relay is connected with the first capacitor, the second capacitor and the storage battery.

Further, the model number of the time base integrated chip is 555.

Further, the model of the triode is 3DC130.

Further, the model of the relay is JQX-10F.

Furthermore, the charging stop control module comprises a first thyristor, a voltage regulator tube, a third capacitor, a second resistor, a third resistor and a first potentiometer, wherein the anode of the thyristor is connected with the second resistor, the cathode of the thyristor is grounded, the gate pole of the thyristor is divided into two paths, the first path is grounded through the third resistor, and the second path is connected with the first potentiometer through the voltage regulator tube.

Further, the model of the first thyristor is KP10A.

Further, the model of the stabilivolt is 2CW53.

Furthermore, the charge and discharge control circuit further comprises a main control circuit, the main control circuit comprises a rectifier transformer, a rectifier bridge and a second thyristor, and the rectifier transformer, the rectifier bridge and the second thyristor are connected in sequence and then are connected with the storage battery.

Further, the model of the second thyristor is KP10A.

The utility model discloses the beneficial effect who gains does:

the utility model provides a charge-discharge control circuit adopts the battery, charge-discharge control module, stop charge control module, charge indicator and discharge indicator, charge-discharge control module respectively with the battery, charge indicator and discharge indicator are connected electrically, stop charge control module and hold the battery electricity and be connected, charge-discharge control module includes time base NULL, triode and relay, time base NULL is connected with the battery after triode and the relay that concatenates. The charging and discharging control circuit provided by the utility model can monitor the working state of the storage battery in real time through the charging indicator lamp and the discharging indicator lamp, and is convenient to use; the charging, discharging and charging stop states of the storage battery can be automatically controlled through the charging and discharging control module and the charging stop control module, so that the service life of the storage battery is greatly prolonged; and the integrated chip is adopted, so that the size of the storage battery charging device is small.

Drawings

Fig. 1 is a functional block diagram of a first embodiment of a charge and discharge control circuit according to the present invention;

fig. 2 is a functional block diagram of a second embodiment of the charge and discharge control circuit provided by the present invention;

fig. 3 is a schematic diagram of a circuit principle of an embodiment of the charging and discharging control circuit provided by the present invention.

The reference numbers indicate:

10. a battery; 20. a charge and discharge control module; 30. a stop charging control module; 40. a charge indicator light; 50. a discharge indicator light; 60. a main control circuit.

Detailed Description

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

As shown in fig. 1 to fig. 3, the utility model discloses a charge and discharge control circuit is proposed in the first embodiment, including battery 10, charge and discharge control module 20, stop charge control module 30, charge indicator 40 and discharge indicator 50, charge and discharge control module 20 respectively with battery 10, charge indicator 40 and discharge indicator 50 electricity are connected, stop charge control module 30 and be connected with battery 10 electricity, charge and discharge control module 20 includes time base integrated chip U, triode Q and relay KA, time base integrated chip U is connected with battery 10 electricity behind triode Q and the relay KA through concatenating.

In the above structure, please refer to fig. 1 to 3, in the charge and discharge control circuit provided in this embodiment, a pin 3 of a time-base integrated chip U is connected to a base of a transistor through a first resistor, a pin 8 of the time-base integrated chip is connected to a power supply terminal, a pin 1 of the time-base integrated chip is grounded, a collector of the transistor is connected to a coil of a relay, and an emitter of the transistor is grounded; the normally open contacts of the relay are connected to the first capacitor, the second capacitor and the battery 10. In this embodiment, the model number of the time-base integrated chip is 555. For example, the model number of the time base integrated chip can be NE555, μ A555 or SL555. The triode is adopted with the model number of 3DC130. The model adopted by the relay is JQX-10F.

Further, referring to fig. 1 to 3, in the charge and discharge control circuit provided in this embodiment, the charge stopping control module 30 is electrically connected to the battery 10, the charge stopping control module 30 includes a first thyristor V1, a voltage regulator tube VS, a third capacitor C3, a second resistor R2, a third resistor R3, and a first potentiometer RP1, an anode of the thyristor V1 is connected to the second resistor R2, a cathode of the thyristor V1 is grounded, a gate of the thyristor V1 is divided into two paths, the first path is grounded through the third resistor R3, the second path is connected to the first potentiometer RP1 through the voltage regulator tube VS, and a cathode of the voltage regulator tube VS is grounded through the third capacitor C3. In the present embodiment, the model of the first thyristor is KP10A. The model number of the voltage regulator tube is 2CW53. The charging and discharging control circuit provided by the embodiment controls the stopping of charging of the fully charged storage battery 10 through the stopping of charging control module 30, so that the degree of automation is high, and the service life of the storage battery is greatly prolonged.

Preferably, referring to fig. 1 to 3, the charge and discharge control circuit provided in this embodiment further includes a main control circuit 60, the main control circuit 60 includes a rectifier transformer T, a rectifier bridge VD and a second thyristor V2, and the rectifier transformer T, the rectifier bridge VD and the second thyristor V2 are connected in sequence and then connected to the battery 10. In the present embodiment, the second thyristor V2 has a model number KP10A. The rectifier transformer T and the rectifier bridge VD can adopt the existing products. The charge/discharge control circuit provided in this embodiment can control the charging of the storage battery 10 through the main control circuit 60, and has high degree of automation and charging stability.

As shown in fig. 1 to fig. 3, the charge and discharge control circuit provided in this embodiment has the following operating principle:

during charging, because the voltage of the storage battery GB is low, the 3 rd pin output of the time base integrated chip U is also low level, the triode Q is cut off, the relay KA is released, the voltage of the storage battery GB is divided by the fourth resistor R4 and the first potentiometer RP2 to form lower divided voltage, the voltage regulator tube VS is cut off, and the first thyristor V1 is in a turn-off state. At this time, the battery GB is in a charged state, and the first capacitor C1 and the second capacitor C2 are charged after being rectified by the rectifier bridge VD, and the charge indicator lamp H1 is turned on.

Along with the continuous of battery GB charging process, its voltage continuously rises, when reaching a certain setting value, because operating voltage rise, the 3 rd pin output of time base integrated chip U becomes high level, triode Q switches on, and relay KA gets electricity and the actuation, and its normally open contact is closed, and battery GB charges to first condenser C1, second condenser C2 fast. At this time, the discharge indicator lamp H2 is lit. When the storage battery GB is fully charged, the voltage of the storage battery GB is divided by the fourth resistor R4 and the first potentiometer RP2, the voltage regulator tube VS is broken down, the first thyristor V1 is conducted, the trigger current of the second thyristor V2 is bypassed, the second thyristor V2 is turned off, and the charging process is automatically stopped.

Compared with the prior art, the charge and discharge control circuit provided by the embodiment adopts the storage battery, the charge and discharge control module, the charge stop control module, the charge indicator lamp and the discharge indicator lamp, the charge and discharge control module is respectively and electrically connected with the storage battery, the charge stop control module is electrically connected with the storage battery, the charge and discharge control module comprises a time base integrated chip, a triode and a relay, and the time base integrated chip is electrically connected with the storage battery through the serially connected triode and the relay. The charge and discharge control circuit provided by the embodiment can monitor the working state of the storage battery in real time through the charge indicator lamp and the discharge indicator lamp, and is convenient to use; the charging, discharging and charging stop states of the storage battery can be automatically controlled through the charging and discharging control module and the charging stop control module, so that the service life of the storage battery is greatly prolonged; and the integrated chip is adopted, so that the size of the storage battery charging device is small.

While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The charging and discharging control circuit is characterized by comprising a storage battery (10), a charging and discharging control module (20), a charging stop control module (30), a charging indicator lamp (40) and a discharging indicator lamp (50), wherein the charging and discharging control module (20) is respectively electrically connected with the storage battery (10), the charging indicator lamp (40) and the discharging indicator lamp (50), the charging stop control module (30) is electrically connected with the storage battery (10), the charging and discharging control module (20) comprises a time base integrated chip, a triode and a relay, and the time base integrated chip is electrically connected with the storage battery (10) after the triode and the relay are connected in series.

2. The charge and discharge control circuit according to claim 1, wherein the 3 rd pin of the time base integrated chip is connected to the base of the transistor through a first resistor, the 8 th pin of the time base integrated chip is connected to the power supply terminal, the 1 st pin of the time base integrated chip is grounded, the collector of the transistor is connected to the coil of the relay, and the emitter of the transistor is grounded; the normally open contacts of the relay are connected to the first capacitor, the second capacitor and the battery (10).

3. The charge and discharge control circuit of claim 1 wherein the time base integrated chip is model 555.

4. The charge and discharge control circuit of claim 1 wherein said transistor is of the type 3DC130.

5. The charge and discharge control circuit of claim 1, wherein the relay is of the type JQX-10F.

6. The charge and discharge control circuit according to claim 1, wherein the charge stop control module (30) includes a first thyristor, a voltage regulator tube, a third capacitor, a second resistor, a third resistor, and a first potentiometer, an anode of the thyristor is connected to the second resistor, a cathode of the thyristor is grounded, a gate of the cathode of the thyristor is divided into two paths, a first path is grounded through the third resistor, a second path is connected to the first potentiometer through the voltage regulator tube, and a cathode of the voltage regulator tube is grounded through the third capacitor.

7. The charge and discharge control circuit of claim 6, wherein the first thyristor has a model number KP10A.

8. The charge and discharge control circuit of claim 6 wherein the type of the zener diode is 2CW53.

9. The charging and discharging control circuit according to claim 1, further comprising a main control circuit (60) electrically connected to the battery (10), wherein the main control circuit (60) comprises a rectifier transformer, a rectifier bridge and a second thyristor, and the rectifier transformer, the rectifier bridge and the second thyristor are connected in sequence and then connected to the battery (10).

10. The charge and discharge control circuit of claim 9, wherein the second thyristor is of type KP10A.