CN203415941U - Battery charging management module for microcomputer protection device - Google Patents
Battery charging management module for microcomputer protection device Download PDFInfo
- Publication number
- CN203415941U CN203415941U CN201320518213.4U CN201320518213U CN203415941U CN 203415941 U CN203415941 U CN 203415941U CN 201320518213 U CN201320518213 U CN 201320518213U CN 203415941 U CN203415941 U CN 203415941U
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- charging management
- unit
- battery charging
- battery
- control unit
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Abstract
The utility model discloses a battery charging management module for a microcomputer protection device, and the module comprises a CPU control unit, a button detection unit, an external power supply detection unit, a battery charging management unit, a switch control unit, a voltage conversion unit, and a battery. The output end of the button detection unit and the output end of the external power supply detection unit are respectively connected to the input end of the CPU control unit. The output end of the CPU control unit is connected to the input end of the battery charging management unit and the input end of the switch control unit. The input/output end of the battery charging management unit is connected to the input/output end of the voltage conversion unit. The output end of the battery charging management unit is connected to the input end of the battery. The output end of the switch control unit and the output end of the battery are respectively connected with the input end of the voltage conversion unit. The module provided by the utility model achieves the charging management of the battery and charges the battery when an external power supply has electricity. When the external power supply does not have electricity and a button is pressed, the external power supply supplies power to the battery charging management unit after the conversion through a battery conversion unit.
Description
Technical field
The utility model belongs to electric equipment field, relates to a kind of microcomputer protecting device for electric power system, relates in particular to the battery charging management module of microcomputer protecting device.
Background technology
In electric power system, due to factors such as external force, overvoltage, ageing of insulation, operate miss, design defect, can there is the faults such as ground connection, short circuit, overload, operations staff's safety and equipment are worked the mischief.For the harm that reduces or avoid bringing thus, adopt protective relaying device to distinguish normal, the undesired and malfunction of electric power, and make corresponding processing, as safeguard measures such as signalling and tripping operations.At present, be generally by microcomputer protecting device, the above-mentioned equipment of safeguard protection that needs to be protected.
Existing microcomputer protecting device is widely used in the protective device of the primary equipments such as transformer that the inlet wire, feeder line, plant stand of the systems such as power plant, transformer station, power distribution station, switchyard use, mother, capacitor, motor, standby throwing, PT, also can be used for protection and the observing and controlling of electric current and voltage.It is generally comprised of parts such as central controller, voltage (or electric current) instrument transformer, relay, switch power modules; central controller is sampled voltage (or electric current) signal in voltage (or electric current) instrument transformer; and this voltage (or electric current) is analyzed; when judgement is broken down; the passive closing of contact of control relay; in the loop of the equipment that the passive contact access of this relay needs protection, control this loop action, thus achieve a butt joint into the protection of equipment.
Existing microcomputer protecting device generally adopts external power supply power supply, but when external power supply does not have electricity, this microcomputer protecting device cannot be system power supply in time, thereby has affected the use of whole microcomputer protecting device, to user, brings some inconvenience.
Utility model content
Therefore, for above-mentioned problem, the utility model proposes a kind of battery charging management module of microcomputer protecting device, adopt external power supply and internal cell cooperated power supply, and realize the Charge Management to battery by circuit, thereby solved the deficiency of prior art.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is, a kind of battery charging management module of microcomputer protecting device, comprise CPU control unit, button detecting unit, external power supply detecting unit, battery charging management unit, switch control unit, voltage conversion unit and battery, the output of the output of button detecting unit and external power supply detecting unit is connected to the input of CPU control unit, the output of CPU control unit is connected to the input of battery charging management unit and the input of switch control unit, the input and output of battery charging management unit are terminated at the input/output terminal of voltage conversion unit, the output of battery charging management unit is connected to the input of battery, the output of switch control unit and the output of battery are connected to the input of voltage conversion unit.
The course of work of said units is as follows: CPU control unit detects button that button detecting unit sends and presses the external working power signal that signal and external power supply detecting unit are sent, when external working power has electricity, CPU control unit is controlled battery charging management unit battery is carried out to Charge Management; When external working power there is not electricity, and while having button to press signal, CPU control unit is controlled voltage conversion unit via switch control unit and is provided VCC power supply for battery charging management unit.
Further, described battery charging management unit is realized by battery charging management chip, and this battery charging management chip can be by having bought on market, and for example selecting model is the battery charging management chip of HB6299.
Further, described voltage conversion unit is realized by voltage transitions chip, and voltage transitions chip is that prior art is all, and the voltage management chip that for example model is LM2596, no longer describes in detail here.
Further, described switch control unit comprises triode QK3 and follow circuit thereof.
Further, described switch control unit also comprises self-locking element QK1.
The utility model passes through foregoing circuit, the Charge Management of realization to battery, when external working power has electricity, battery is charged, and external working power is not while there be electricity, and while having button to press, the power supply of battery is powered into battery charging management unit after battery converting unit is changed, realized good battery charging management.Meanwhile, by triode QK3 and follow circuit thereof, self-locking element QK1, realize switch control unit, there is good stability.In addition, circuit structure of the present utility model is simple, has good practicality.
Accompanying drawing explanation
Fig. 1 is the theory diagram of battery charging management module of the present utility model;
Fig. 2 is the circuit theory diagrams of embodiment of the present utility model.
Embodiment
Now with embodiment, the utility model is further illustrated by reference to the accompanying drawings.
As shown in Figure 1, the battery charging management module of a kind of microcomputer protecting device of the present utility model, comprise CPU control unit, button detecting unit, external power supply detecting unit, battery charging management unit, switch control unit, voltage conversion unit and battery, the output of the output of button detecting unit and external power supply detecting unit is connected to the input of CPU control unit, the output of CPU control unit is connected to the input of battery charging management unit and the input of switch control unit, the input and output of battery charging management unit are terminated at the input/output terminal of voltage conversion unit, the output of battery charging management unit is connected to the input of battery, the output of switch control unit and the output of battery are connected to the input of voltage conversion unit.
Wherein, described battery charging management unit is realized by battery charging management chip, and this battery charging management chip can be by having bought on market, and for example selecting model is the battery charging management chip of HB6299.Described voltage conversion unit is realized by voltage transitions chip, and voltage transitions chip is that prior art is all, and the voltage management chip that for example model is LM2596, no longer describes in detail here.
As a specific embodiment, as shown in Figure 2, described switch control unit comprises triode QK3 and follow circuit thereof.In addition, described switch control unit also comprises self-locking element QK1.In the present embodiment, battery is 3.7V, and VCC is 5V.CPU control unit is controlled battery charging management unit and is carried out battery charging management, and controls powered battery signal.
The course of work of said units is as follows: CPU control unit detects button that button detecting unit sends and presses the external working power signal that signal and external power supply detecting unit are sent, when external working power has electricity, CPU control unit is controlled battery charging management unit battery is carried out to Charge Management; When external working power there is not electricity, and while having button to press signal, CPU control unit is controlled voltage conversion unit via switch control unit and is provided VCC power supply for battery charging management unit.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but those skilled in the art should be understood that; within not departing from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection range of the present utility model.
Claims (5)
1. the battery charging management module of microcomputer protecting device, it is characterized in that: comprise CPU control unit, button detecting unit, external power supply detecting unit, battery charging management unit, switch control unit, voltage conversion unit and battery, the output of the output of button detecting unit and external power supply detecting unit is connected to the input of CPU control unit, the output of CPU control unit is connected to the input of battery charging management unit and the input of switch control unit, the input and output of battery charging management unit are terminated at the input/output terminal of voltage conversion unit, the output of battery charging management unit is connected to the input of battery, the output of switch control unit and the output of battery are connected to the input of voltage conversion unit.
2. battery charging management module according to claim 1, is characterized in that: described battery charging management unit is realized by battery charging management chip.
3. battery charging management module according to claim 1, is characterized in that: described voltage conversion unit is realized by voltage transitions chip.
4. battery charging management module according to claim 1, is characterized in that: described switch control unit comprises triode QK3 and follow circuit thereof.
5. battery charging management module according to claim 4, is characterized in that: described switch control unit also comprises self-locking element QK1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320518213.4U CN203415941U (en) | 2013-08-23 | 2013-08-23 | Battery charging management module for microcomputer protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320518213.4U CN203415941U (en) | 2013-08-23 | 2013-08-23 | Battery charging management module for microcomputer protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203415941U true CN203415941U (en) | 2014-01-29 |
Family
ID=49978800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320518213.4U Expired - Fee Related CN203415941U (en) | 2013-08-23 | 2013-08-23 | Battery charging management module for microcomputer protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203415941U (en) |
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2013
- 2013-08-23 CN CN201320518213.4U patent/CN203415941U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20200823 |