CN214707281U - Automatic switching control device for power paths - Google Patents
Automatic switching control device for power paths Download PDFInfo
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- CN214707281U CN214707281U CN202023129627.7U CN202023129627U CN214707281U CN 214707281 U CN214707281 U CN 214707281U CN 202023129627 U CN202023129627 U CN 202023129627U CN 214707281 U CN214707281 U CN 214707281U
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Abstract
The automatic power path switching control device is characterized by comprising an internal power circuit, an external power circuit and an internal power monitoring circuit, wherein the internal power circuit is connected with the external power circuit in parallel. The utility model has the advantages of it is following: (1) the integration degree is high, the control device integrates power monitoring and power path switching, and the automatic monitoring of the system power and the power path switching can be realized; (2) unmanned manual switching reduces the potential safety hazard of electric power during manual operation, and improves the efficiency of electric power switching.
Description
Technical Field
The utility model belongs to the technical field of the power switches, concretely relates to electric power route automatic switch-over control device
Background
At present, the common power battery working state and the common energy storage system working state have the condition of simultaneously accessing an internal power supply and an external power supply, in order to ensure the stability of a power supply system, the phenomenon that a plurality of groups of power supplies simultaneously access a circuit due to the circulation generated by a voltage difference value is avoided, the power supply needs to be subjected to power path switching action, and the common power path switching device has the following defects: (1) the power supply is switched by manual operation, so that potential safety hazards of electric power exist, and the efficiency is low; (2) the integration level and the automation degree are low, and the whole device occupies a large space.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects of the prior art and providing an automatic switching control device of an electric power path, which comprises an internal power circuit, an external power circuit and an internal power monitoring circuit, wherein the internal power circuit is connected with the external power circuit in parallel;
the internal power supply circuit comprises an internal power supply module V which is connected with the circuit in series in sequence0A diode D1 and a travel switch Ka, wherein the anode of the diode D1 is connected with an internal power supply module V0The cathode of the diode D1 is connected with the travel switch Ka;
the external power supply circuit comprises an external power supply module V which is connected with the circuit in series in sequence1The device comprises a singlechip integrated chip, a triode Q1 and a protection resistor Ra, wherein the singlechip integrated chip is connected with a travel switch Ka in a control mode, a base electrode of a triode Q1 is connected with an anode of a diode D1, one end of a triode Q1 is connected with the singlechip integrated chip, and the other end of the triode Q1 is connected with the protection resistor Ra;
the internal power supply monitoring circuit comprises a resistor R1 and a resistor R2, wherein the resistor R1 and the resistor R2 are connected in series and then are connected with an internal power supply module V0And a branch circuit is arranged between the resistor R1 and the resistor R2 and is connected with the singlechip integrated chip.
Furthermore, the internal power input circuit further comprises a resistor R0, wherein one end of the resistor R0 is connected with the anode of the diode D1, and the other end of the resistor R0 is connected with the internal power module V0Are connected with each other.
Further, the state of the travel switch Ka is a normally closed state.
Furthermore, the single chip microcomputer integrated chip is an MCU chip.
Furthermore, an A/D conversion module is arranged in the MCU chip.
Furthermore, the collector of the transistor Q1 is connected to the microchip, and the emitter of the transistor Q1 is connected to the protection resistor Ra.
Has the advantages that: the utility model discloses an electric power route automatic switch-over controlling means compares in current electric power route automatic switch-over controlling means, the utility model has the advantages of it is following: (1) the integration degree is high, the control device integrates power monitoring and power path switching, and the automatic monitoring of the system power and the power path switching can be realized; (2) unmanned manual switching reduces the potential safety hazard of electric power during manual operation, and improves the efficiency of electric power switching.
Drawings
Fig. 1 is a schematic diagram of the automatic switching control of the power path in the present invention;
FIG. 2 is a schematic diagram of the internal power monitoring circuit of the present invention;
Detailed Description
In order to deepen the understanding of the present invention, the present invention is described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.
As shown in fig. 1 and 2, an automatic switching control device for power paths includes an internal power circuit, an external power circuit, and an internal power monitoring circuit, where the internal power circuit is connected in parallel with the external power circuit;
the internal power supply circuit comprises an internal power supply module V which is connected with the circuit in series in sequence0A diode D1 and a travel switch Ka, wherein the anode of the diode D1 is connected with an internal power supply module V0The cathode of the diode D1 is connected with the travel switch Ka, the internal power input circuit further comprises a resistor R0, one end of the resistor R0 is connected with the anode of the diode D1, and the other end of the resistor R0 is connected with the internal power module V0The travel switch Ka is in a normally closed state.
The external power supply circuit comprises an external power supply module V which is connected with the circuit in series in sequence1Singlechip integrated chip, triode Q1 and protectorAnd the single chip microcomputer integrated chip is connected with the travel switch Ka in a controlled manner, the single chip microcomputer integrated chip is an MCU chip, an A/D conversion module is arranged inside the MCU chip, the base of the triode Q1 is connected with the anode of the diode D1, the collector of the triode Q1 is connected with the single chip microcomputer integrated chip, and the emitter of the triode Q1 is connected with the protection resistor Ra.
The internal power supply monitoring circuit comprises a resistor R1 and a resistor R2, wherein the resistor R1 and the resistor R2 are connected in series and then are connected with an internal power supply module V0And a branch circuit is arranged between the resistor R1 and the resistor R2 and is connected with the singlechip integrated chip.
The working condition is as follows: will internal power supply module V0And an external power supply module V1Simultaneously, when the circuit is accessed, the A/D conversion module on the MCU monitors the internal power supply module V through the voltage division effect of the resistor R1 and the resistor R20When the internal power supply module V is used0When the electric quantity is sufficient, the MCU of the singlechip integrated chip controls the disconnection of an external power supply circuit, and the whole power supply system is composed of an internal power supply module V0Is responsible for power supply; when the internal power supply module V0When the electric quantity is low, the MCU of the singlechip integrated chip controls the travel switch Ka to be disconnected (the internal power supply circuit is disconnected), the external power supply circuit is closed, and the whole power supply system is powered by the external power supply module V1Is responsible for power supply; when the output end V isoutWhen the power supply demand power supply is too large, the MCU of the singlechip integrated chip controls the internal power supply module V0And an external power supply module V1And simultaneously supplying power.
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 (6)
1. The automatic switching control device of the power path is characterized by comprising an internal power supply circuit, an external power supply circuit and an internal power supply monitoring circuit, wherein the internal power supply circuit is connected with the external power supply circuit in parallel;
the internal power supply circuit comprises an internal power supply module V which is connected with the circuit in series in sequence0A diode D1 and a travel switch Ka, wherein the anode of the diode D1 is connected with an internal power supply module V0The cathode of the diode D1 is connected with the travel switch Ka;
the external power supply circuit comprises an external power supply module V which is connected with the circuit in series in sequence1The device comprises a singlechip integrated chip, a triode Q1 and a protection resistor Ra, wherein the singlechip integrated chip is connected with a travel switch Ka in a control mode, a base electrode of the triode Q1 is connected with an anode of a diode D1, one end of the triode Q1 is connected with the singlechip integrated chip, and the other end of the triode Q1 is connected with the protection resistor Ra;
the internal power supply monitoring circuit comprises a resistor R1 and a resistor R2, wherein the resistor R1 and the resistor R2 are connected in series and then are connected with an internal power supply module V0And a branch circuit is arranged between the resistor R1 and the resistor R2 and is connected with the singlechip integrated chip.
2. The automatic switching control device of power path as claimed in claim 1, wherein the internal power input circuit further comprises a resistor R0, one end of the resistor R0 is connected to the anode of the diode D1, and the other end of the resistor R0 is connected to the internal power module V0Are connected with each other.
3. The automatic switching control device of electric power path as claimed in claim 1, wherein the state of the travel switch Ka is a normally closed state.
4. The automatic switching control device of power paths of claim 1, wherein the monolithic integrated circuit chip is an MCU chip.
5. The automatic switching control device of power paths of claim 4, wherein an A/D conversion module is arranged inside the MCU chip.
6. The automatic switching control device of claim 1, wherein the collector of the transistor Q1 is connected to the microchip, and the emitter of the transistor Q1 is connected to the protection resistor Ra.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023129627.7U CN214707281U (en) | 2020-12-23 | 2020-12-23 | Automatic switching control device for power paths |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023129627.7U CN214707281U (en) | 2020-12-23 | 2020-12-23 | Automatic switching control device for power paths |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214707281U true CN214707281U (en) | 2021-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023129627.7U Active CN214707281U (en) | 2020-12-23 | 2020-12-23 | Automatic switching control device for power paths |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214707281U (en) |
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2020
- 2020-12-23 CN CN202023129627.7U patent/CN214707281U/en active Active
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