CN219322125U - Storage battery charging power supply - Google Patents
Storage battery charging power supply Download PDFInfo
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- CN219322125U CN219322125U CN202223310918.5U CN202223310918U CN219322125U CN 219322125 U CN219322125 U CN 219322125U CN 202223310918 U CN202223310918 U CN 202223310918U CN 219322125 U CN219322125 U CN 219322125U
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Abstract
The utility model discloses a storage battery charging power supply, which relates to the technical field of power supply control and comprises a power supply module, a power supply module and a power supply control module, wherein the power supply module is used for supplying power; the voltage-stabilizing driving module is used for adjusting output voltage through a flyback power supply control method; the absorption module is used for absorbing voltage spikes; the voltage regulating module is used for regulating voltage stabilization; the storage battery module is used for storing energy; the sampling conversion module is used for current sampling and signal conversion; the electric quantity detection module is used for comparing with a voltage threshold value; and the isolation control module is used for isolating and controlling the operation of the voltage stabilizing driving module. The storage battery charging power supply adopts the flyback power supply circuit to finish the stable and adjustable input control of the electric energy, improves the conversion efficiency of the electric energy, prolongs the service life of the storage battery, directly stores the electric energy by the storage battery module, and directly controls the voltage stabilizing driving module to stop working through the electric quantity detection module and the isolation control module after the storage battery is full of the storage battery, so as to stop providing the electric energy for the storage battery module.
Description
Technical Field
The utility model relates to the technical field of power control, in particular to a storage battery charging power supply.
Background
With the development of power supply technology, the storage battery is generally formed by connecting a plurality of rechargeable lead-acid storage batteries in series, the service life of the storage battery is about ten years to fifteen years, the storage battery is widely applied to various fields in production and life, meanwhile, the service life and the use safety of the storage battery are directly influenced by the storage battery charging technology, the service life of the storage battery is prolonged by an excellent storage battery charging power supply, the existing storage battery charging power supply is low in power supply conversion efficiency, the charging voltage of the storage battery is unstable, the service life of the storage battery is reduced, the control means is comprehensive, and the storage battery charging power supply is good in performance and safety, but is large in size, complex in circuit and cannot be popularized and used, so that improvement is needed.
Disclosure of Invention
The embodiment of the utility model provides a storage battery charging power supply to solve the problems in the background art.
According to an embodiment of the present utility model, there is provided a battery charging power supply including: the device comprises a power module, an absorption module, a voltage stabilizing driving module, a voltage regulating module, a storage battery module, a sampling conversion module, an electric quantity detection module and an isolation control module;
the power supply module is used for inputting direct-current electric energy;
the voltage stabilizing driving module is connected with the power supply module and used for adjusting the conduction angle of the power tube circuit through a flyback power supply control method and controlling the operation of the voltage adjusting module;
the absorption module is connected with the power supply module and the voltage stabilizing driving module and is used for absorbing voltage peaks generated when the voltage stabilizing driving module works;
the voltage regulating module is connected with the absorption module and the voltage stabilizing tube driving module and is used for carrying out DC-DC voltage stabilizing regulation on the input electric energy and rectifying and filtering the regulated electric energy;
the storage battery module is connected with the voltage regulating module and is used for receiving the electric energy output by the voltage regulating module and storing energy;
the sampling conversion module is connected with the storage battery module and used for sampling a current signal of the storage battery module and converting the sampled current signal into a voltage signal;
the electric quantity detection module is connected with the sampling conversion module and is used for receiving the voltage signal, comparing the voltage signal with a set voltage threshold value and outputting a comparison result;
and the isolation control module is connected with the electric quantity detection module and the voltage stabilizing driving module and is used for isolating and transmitting the comparison result and controlling the operation of the voltage stabilizing driving module.
Compared with the prior art, the utility model has the beneficial effects that: the storage battery charging power supply adopts the flyback power supply circuit to finish the stable and adjustable input control of the electric energy, improves the conversion efficiency of the electric energy, provides a stable-voltage and steady-flow charging environment for the storage battery, prevents overvoltage conditions, prolongs the service life of the storage battery, directly stores the electric energy by the storage battery module, directly controls the voltage-stabilizing driving module to stop working through the electric quantity detection module and the isolation control module after the storage battery is full, and stops providing the electric energy for the storage battery module.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments of the present utility model will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic block diagram of a battery charging power supply according to an embodiment of the present utility model.
Fig. 2 is a circuit diagram of a battery charging power supply according to an embodiment of the present utility model.
Fig. 3 is a circuit diagram of connection between an electric quantity detection module and an isolation control module according to an embodiment of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
specifically, the power module 1 is used for inputting direct current electric energy;
the voltage stabilizing driving module 3 is connected with the power supply module 1 and used for adjusting the conduction angle of the power tube circuit by a flyback power supply control method and controlling the operation of the voltage adjusting module 4;
the absorption module 2 is connected with the power supply module 1 and the voltage stabilizing driving module 3 and is used for absorbing voltage peaks generated when the voltage stabilizing driving module 3 works;
the voltage regulating module 4 is connected with the absorption module 2 and the voltage stabilizing tube driving module and is used for carrying out DC-DC voltage stabilizing regulation on the input electric energy and rectifying and filtering the regulated electric energy;
the storage battery module 5 is connected with the voltage regulation module 4 and is used for receiving the electric energy output by the voltage regulation module 4 and storing energy;
the sampling conversion module 6 is connected with the storage battery module 5 and is used for sampling the current signal of the storage battery module 5 and converting the sampled current signal into a voltage signal;
the electric quantity detection module 7 is connected with the sampling conversion module 6 and is used for receiving the voltage signal, comparing the voltage signal with a set voltage threshold value and outputting a comparison result;
and the isolation control module 8 is connected with the electric quantity detection module 7 and the voltage stabilizing driving module 3 and is used for isolating and transmitting the comparison result and controlling the operation of the voltage stabilizing driving module 3.
In a specific embodiment, the power module 1 may process the input electric energy by using a transformer W1, a rectifier T and a filter capacitor C1, which is not described herein; the above-mentioned battery module 5 can adopt the parallel charging mode of the battery to charge and control the multi-path battery, and will not be described herein.
In this embodiment, referring to fig. 2 and 3, the voltage stabilizing driving module 3 includes a first resistor R1, a first switching tube VT1, a fourth resistor R4, a first power tube Q1, a second diode D2, a fifth resistor R5, a second capacitor C2, a first voltage stabilizing tube VD1, a third diode D3, a sixth resistor R6, and a third capacitor C3;
specifically, one end of the first resistor R1 is connected to the power module 1, the other end of the first resistor R1 is connected to the gate of the first power tube Q1, the collector of the first switch tube VT1, the cathode of the first voltage regulator tube VD1, one end of the sixth resistor R6 and the isolation control module 8, the base of the first switch tube VT1 is connected to the cathode of the second diode D2 through the fourth resistor R4, the anode of the second diode D2 is connected to the source of the first power tube Q1 and is connected to the emitter of the first switch tube VT1, one end of the second capacitor C2 and the ground through the fifth resistor R5, the drain of the first power tube Q1 is connected to the absorber module 2, the other end of the second capacitor C2 is connected to the anode of the third diode D3 and the anode of the first voltage regulator tube VD1, the other end of the sixth resistor R6 is connected to the first end of the third capacitor C3, and the second end of the third capacitor C3 is connected to the cathode of the third diode D3.
In a specific embodiment, the first power tube Q1 may be an N-channel enhancement MOS tube; the first switch tube VT1 can be an NPN triode for overcurrent protection; the first resistor R1 is a starting resistor and provides grid current for the first power tube Q1; the fifth resistor R5 is a current sampling resistor; the sixth resistor R6 and the third capacitor C3 form a positive feedback circuit to maintain the oscillation conduction of the first power tube Q1;
further, the absorption module 2 includes a second resistor R2, a sixth capacitor C6, a third resistor R3, and a first diode D1; the voltage regulating module 4 comprises a high-frequency transformer W2, a fourth diode D2 and a fourth capacitor C4;
specifically, one end of the second resistor R2, one end of the sixth capacitor C6 and the first end of the high-frequency transformer W2 are all connected to the power module 1, the other end of the second resistor R2 and the other end of the sixth capacitor C6 are all connected to the cathode of the first diode D1 through the third resistor R3, the anode of the first diode D1 is connected to the second end of the high-frequency transformer W2 and the drain of the first power tube Q1, the third end and the fourth end of the high-frequency transformer W2 are respectively connected to the emitter of the first switching tube VT1 and the cathode of the third diode D3, the fifth end of the high-frequency transformer W2 is connected to the anode of the fourth diode D2, and the cathode of the fourth diode D2 and the first end of the battery module 5 are connected to the sixth end and the ground end of the high-frequency transformer W2 through the fourth capacitor C4.
In a specific embodiment, the second resistor R2, the sixth capacitor C6, and the first diode D1 form an RCD snubber circuit.
Further, the sampling conversion module 6 includes a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, and a first operational amplifier OP1;
specifically, one end of the seventh resistor R7 and one end of the eighth resistor R8 are both connected to the second end of the battery module 5, the other end of the seventh resistor R7 and one end of the ninth resistor R9 are both grounded, the other end of the eighth resistor R8 is connected to the inverting end of the first operational amplifier OP1 and to the output end of the first operational amplifier OP1 and the electric quantity detection module 7 through the tenth resistor R10, and the other end of the ninth resistor R9 is connected to the non-inverting end of the first operational amplifier OP 1.
In a specific embodiment, the first OP1 may be an OP07 OP amp, which is configured to convert an input current signal into a voltage signal.
Further, the power detection module 7 includes an eleventh resistor R11, a twelfth resistor R12, a first comparator A1, a fifth capacitor C5, a fifth diode D5, a sixteenth resistor R16, a first power source VCC1, and a voltage threshold;
specifically, one end of the eleventh resistor R11 is connected to the output end of the first operational amplifier OP1, the other end of the eleventh resistor R11 is connected to the in-phase end of the first comparator A1 and the cathode of the fifth diode D5, the anode of the fifth diode D5 is connected to the output end of the first comparator A1, one end of the sixteenth resistor R16 and one end of the fifth capacitor C5, the other end of the fifth capacitor C5 is connected to the inverting end of the first comparator A1 and the voltage threshold through the twelfth resistor R12, and the other end of the sixteenth resistor R16 is connected to the first power source VCC1 and the output end of the first comparator A1.
In a specific embodiment, the first comparator A1 may be an LM393 comparator; the fifth diode D5, the sixth capacitor C6, and the twelfth resistor R12 form a high-level self-locking circuit.
Further, the isolation control module 8 includes a thirteenth resistor R13, a first optocoupler U1, a fourteenth resistor R14, a second power source VCC2, a fifteenth resistor R15, and a second switching transistor VT2;
specifically, one end of the thirteenth resistor R13 is connected to the output end of the first comparator A1, the other end of the thirteenth resistor R13 is connected to the first end of the first optocoupler U1, the second end of the first optocoupler U1 is grounded, the third end of the first optocoupler U1 is connected to the second power VCC2 through the fourteenth resistor R14, the fourth end of the first optocoupler U1 is connected to the base of the second switching tube VT2, the collector of the second switching tube VT2 is connected to the gate of the first power tube Q1 through the fifteenth resistor R15, and the emitter of the second switching tube VT2 is grounded.
In a specific embodiment, the first optical coupler U1 may be a PC817 optical coupler; the second switching transistor VT2 may be an NPN transistor.
The utility model relates to a storage battery charging power supply, which provides required electric energy through a power supply module 1, controls the on-off condition of a first end and a second end of a high-frequency transformer W2 by a first power tube Q1, controls the electric energy to be stably output by the high-frequency transformer W2, simultaneously carries out overcurrent protection by the first power tube VT1, carries out current sampling on the conductive electric energy of the first power tube Q1 by a fifth resistor R5, adds a second diode D2 to the base electrode of the first power tube VT1, when the first power tube VT1 is conducted, the grid voltage of the first power tube Q1 is pulled down, then limits the current of the first power tube Q1, carries out rectification sampling on the induction voltage of a third end and a fourth end of the high-frequency transformer W2 by a third diode D3 and a second capacitor C2, then adjusts the conduction angle of the first power tube Q1, controls the output voltage of the high-frequency transformer W2, the battery module 5 is supplied with electric energy, meanwhile, the seventh resistor R7 is used for sampling the current of the battery, the first operational amplifier OP1 is used for converting the sampled current signal into a voltage signal, the voltage signal is conveniently compared with a voltage threshold value, so that when the electric quantity is full, the first comparator A1 outputs high level, the first optical coupler U1 is used for isolating and controlling the second switching tube VT2 to be conducted, the grid voltage of the first power tube Q1 is thoroughly pulled down, the first power tube Q1 is disconnected, the battery is stopped being charged, the battery charging power supply adopts a flyback power supply circuit to complete stable and adjustable input control of the electric energy, the conversion efficiency of the electric energy is improved, a stable and stable charging environment is provided for the battery, the overvoltage condition is prevented, the service life of the battery is prolonged, the battery module 5 is directly used for storing the electric energy after the battery is full, the voltage stabilizing driving module 3 is directly controlled to stop working through the electric quantity detection module 7 and the isolation control module 8, the power supply for the storage battery module 5 is stopped, and the storage battery charging power supply is stable in power supply, simple in circuit structure, small in size and high in practicability.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. A storage battery charging power supply is characterized in that,
the battery charging power supply includes: the device comprises a power module, an absorption module, a voltage stabilizing driving module, a voltage regulating module, a storage battery module, a sampling conversion module, an electric quantity detection module and an isolation control module;
the power supply module is used for inputting direct-current electric energy;
the voltage stabilizing driving module is connected with the power supply module and used for adjusting the conduction angle of the power tube circuit through a flyback power supply control method and controlling the operation of the voltage adjusting module;
the absorption module is connected with the power supply module and the voltage stabilizing driving module and is used for absorbing voltage peaks generated when the voltage stabilizing driving module works;
the voltage regulating module is connected with the absorption module and the voltage stabilizing tube driving module and is used for carrying out DC-DC voltage stabilizing regulation on the input electric energy and rectifying and filtering the regulated electric energy;
the storage battery module is connected with the voltage regulating module and is used for receiving the electric energy output by the voltage regulating module and storing energy;
the sampling conversion module is connected with the storage battery module and used for sampling a current signal of the storage battery module and converting the sampled current signal into a voltage signal;
the electric quantity detection module is connected with the sampling conversion module and is used for receiving the voltage signal, comparing the voltage signal with a set voltage threshold value and outputting a comparison result;
and the isolation control module is connected with the electric quantity detection module and the voltage stabilizing driving module and is used for isolating and transmitting the comparison result and controlling the operation of the voltage stabilizing driving module.
2. The battery charging source according to claim 1, wherein the voltage stabilizing driving module comprises a first resistor, a first switch tube, a fourth resistor, a first power tube, a second diode, a fifth resistor, a second capacitor, a first voltage stabilizing tube, a third diode, a sixth resistor, and a third capacitor;
the power supply module is connected to one end of the first resistor, the grid electrode of the first power tube, the collector electrode of the first switch tube, the cathode of the first voltage stabilizing tube, one end of the sixth resistor and the isolation control module are connected to the other end of the first resistor, the base electrode of the first switch tube is connected with the cathode of the second diode through the fourth resistor, the anode of the second diode is connected with the source electrode of the first power tube and is connected with the emitter electrode of the first switch tube, one end of the second capacitor and the ground end through the fifth resistor, the drain electrode of the first power tube is connected with the absorption module, the other end of the second capacitor is connected with the anode of the third diode and the anode of the first voltage stabilizing tube, the other end of the sixth resistor is connected with the first end of the third capacitor, and the second end of the third capacitor is connected with the cathode of the third diode.
3. The battery charging source of claim 2, wherein the absorption module comprises a second resistor, a sixth capacitor, a third resistor, and a first diode; the voltage regulating module comprises a high-frequency transformer, a fourth diode and a fourth capacitor;
the power supply module is connected to one end of the second resistor, one end of the sixth capacitor and the first end of the high-frequency transformer, the other end of the second resistor and the other end of the sixth capacitor are connected with the cathode of the first diode through the third resistor, the anode of the first diode is connected with the second end of the high-frequency transformer and the drain electrode of the first power tube, the third end and the fourth end of the high-frequency transformer are respectively connected with the emitter of the first switch tube and the cathode of the third diode, the fifth end of the high-frequency transformer is connected with the anode of the fourth diode, and the cathode of the fourth diode and the first end of the storage battery module are connected with the sixth end and the ground end of the high-frequency transformer through the fourth capacitor.
4. A battery charging source according to claim 3, wherein the sampling conversion module comprises a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, and a first op-amp;
one end of the seventh resistor and one end of the eighth resistor are both connected with the second end of the storage battery module, the other end of the seventh resistor and one end of the ninth resistor are both grounded, the other end of the eighth resistor is connected with the inverting end of the first operational amplifier and the output end of the first operational amplifier and the electric quantity detection module through the tenth resistor, and the other end of the ninth resistor is connected with the in-phase end of the first operational amplifier.
5. The battery charging source of claim 4, wherein the charge detection module comprises an eleventh resistor, a twelfth resistor, a first comparator, a fifth capacitor, a fifth diode, a sixteenth resistor, a first power source, and a voltage threshold;
one end of the eleventh resistor is connected with the output end of the first operational amplifier, the other end of the eleventh resistor is connected with the same-phase end of the first comparator and the cathode of the fifth diode, the anode of the fifth diode is connected with the output end of the first comparator, one end of the sixteenth resistor and one end of the fifth capacitor, the other end of the fifth capacitor is connected with the inverting end of the first comparator and the voltage threshold value through the twelfth resistor, and the other end of the sixteenth resistor is connected with the first power supply and the output end of the first comparator.
6. The battery charging source according to claim 5, wherein the isolation control module comprises a thirteenth resistor, a first optocoupler, a fourteenth resistor, a second power source, a fifteenth resistor, and a second switching tube;
one end of the thirteenth resistor is connected with the output end of the first comparator, the other end of the thirteenth resistor is connected with the first end of the first optical coupler, the second end of the first optical coupler is grounded, the third end of the first optical coupler is connected with the second power supply through the fourteenth resistor, the fourth end of the first optical coupler is connected with the base electrode of the second switching tube, the collector electrode of the second switching tube is connected with the grid electrode of the first power tube through the fifteenth resistor, and the emitter electrode of the second switching tube is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223310918.5U CN219322125U (en) | 2022-12-09 | 2022-12-09 | Storage battery charging power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223310918.5U CN219322125U (en) | 2022-12-09 | 2022-12-09 | Storage battery charging power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219322125U true CN219322125U (en) | 2023-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223310918.5U Active CN219322125U (en) | 2022-12-09 | 2022-12-09 | Storage battery charging power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219322125U (en) |
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2022
- 2022-12-09 CN CN202223310918.5U patent/CN219322125U/en active Active
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