CN211151510U - Power supply protection circuit device - Google Patents
Power supply protection circuit device Download PDFInfo
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- CN211151510U CN211151510U CN201921818928.5U CN201921818928U CN211151510U CN 211151510 U CN211151510 U CN 211151510U CN 201921818928 U CN201921818928 U CN 201921818928U CN 211151510 U CN211151510 U CN 211151510U
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Abstract
The utility model aims at providing a power supply protection circuit device, which comprises a power supply and an independent power supply, wherein the power supply is provided with a protection circuit device for power supply protection, the protection circuit device comprises a protection circuit and a power signal acquisition device, the acquisition input end of the power signal acquisition device is connected with the signal output end of the power supply, the output end of the power signal acquisition device is connected with the input end of the power protection circuit, the feedback output end of the protection circuit is connected with a power supply control switch of the power supply through a power tripping device, the other signal output end of the power signal acquisition device is also connected with an alarm device, the power supply can be effectively disconnected in time when the power supply has overvoltage and short circuit and instantaneous heavy current, the damage of the instantaneous heavy current to components can be effectively avoided, and the circuit fault caused by the overvoltage and the short circuit can be avoided to the maximum, effectively reducing the maintenance cost.
Description
Technical Field
The utility model relates to the field of power supply protection, mainly relate to a power protection circuit device.
Background
Along with the rapid progress and development of our country's society, the current aspect of using electricity is particularly paid attention to, especially the use in the aspect of constant voltage power supply, in the palace of power supply to various loads, because the power is direct and load intercommunication, when the power load is electrified in the twinkling of an eye or the load is too big, even short circuit, can lead to the power overvoltage to appear, produce instantaneous heavy current, lead to components and parts such as diode, electric capacity in the load circuit to puncture, lead to a large amount of electrical components and parts to damage because of the overvoltage, cause circuit fault to a great extent, and increase the maintenance cost, increase the intensity of labour when testing the detection to a great extent.
Therefore, a power protection circuit device is provided, through set up protection circuit device between power supply and load, mutually support with protection circuit device through power signal collection system, the realization carries out automatic electrical control to power supply's power switch, can effectually appear overvoltage at power supply, in time break off power supply when instantaneous heavy current appears in the short circuit, the effectual instantaneous heavy current of avoiding is to the harm of components and parts, avoid because of the overvoltage at the at utmost, the circuit fault that the short circuit caused, effectual reduction maintenance cost, just become the problem that needs to solve for urgent need of technical staff in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a power supply protection circuit device, through setting up protection circuit device between power supply and load, mutually support with protection circuit device through power signal collection system, the realization is carried out automatic electrical control to power supply's power switch, can effectually appear overvoltage at power supply, in time break off power supply when instantaneous heavy current appears in the short circuit, the effectual instantaneous heavy current of avoiding is to the harm of components and parts, avoid because of excessive pressure, the circuit fault that the short circuit caused in the at utmost, effectual reduction maintenance cost.
For solving the background art in technical problem, the utility model discloses a following technical scheme:
the utility model provides a power supply protection circuit device, includes power supply and independent power supply, power supply on be equipped with the protection circuit device who is used for power protection, protection circuit device include protection circuit and power signal collection system, power signal collection system's collection input be connected with power supply's signal output part, power signal collection system's output be connected with power protection circuit's input, just protection circuit's feedback output pass through power trip unit and be connected with power supply's power supply control switch, another signal output part of power signal collection system still be connected with alarm device.
Preferably, the protection circuit comprises overvoltage circuit, undervoltage circuit and power protection circuit, overvoltage circuit, undervoltage circuit and power protection circuit between connect through mutually independent parallel structure, can be timely through overvoltage circuit, undervoltage circuit and power protection circuit carry out excessive pressure, power judgement to the voltage in the power supply circuit to carry out timely regulation and feedback to the data that power signal collection system gathered, timely realization is to power supply's protection control, adopt parallel connection mode to connect between the while, can effectually avoid the mutual interference between the different signals, effectual improvement signal processing and the accurate degree of judgement.
Preferably, a hot plug controller is arranged in the power signal acquisition device, the hot plug controller is formed by connecting a current detection resistor and a hot plug MOSFET after the hot detection resistor and the ideal diode are connected in parallel, and the current detection resistor and the hot plug MOSFET are added after the ideal diode MOSFET connected in parallel so as to save one MOSFET. By arranging the detection resistor between the ideal diode and the hot-plug MOSFET, the damage to electric components is effectively prevented.
Preferably, the power supply tripping device comprises an electronic release and a thermal-trip long-delay protector, two ends of a tripping end of the thermal-trip long-delay protector are respectively connected with the electronic release on a power supply switch of a power supply, an input end of the thermal-trip long-delay protector is directly connected with an output end of the power signal acquisition device, the thermal-trip long-delay protector can effectively disconnect the power supply when the power supply is subjected to overvoltage and short circuit and instantaneous large current, and the instantaneous large current is effectively prevented from damaging components.
Preferably, a tripping transmission mechanism for pushing tripping and a magnetic tripping instantaneous protection mechanism are arranged in the thermal tripping long-delay protector.
Preferably, the power signal acquisition device and the protection circuit are both connected with an independent power supply, and the real-time monitoring and feedback actions of the protection circuit device on the power supply can be effectively prevented from being influenced when the main circuit power supply fails.
The utility model has the advantages that:
1) the power supply switch of the power supply is automatically and electrically controlled by mutually matching the power supply signal acquisition device with the protection circuit device, the power supply can be effectively and timely disconnected when overvoltage and short-circuit occur to the power supply, the damage of the instantaneous large current to components and parts is effectively avoided, and circuit faults caused by overvoltage and short-circuit are avoided to the maximum extent, so that the maintenance cost is effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed 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 described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a schematic diagram of a system structure of a power protection circuit device according to the present invention;
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in further detail below.
Referring to fig. 1, a power protection circuit device includes a power supply and an independent power supply, the power supply is provided with a protection circuit device for power protection, the protection circuit device includes a protection circuit and a power signal acquisition device, an acquisition input end of the power signal acquisition device is connected with a signal output end of the power supply, an output end of the power signal acquisition device is connected with an input end of the power protection circuit, a feedback output end of the protection circuit is connected with a power supply control switch of the power supply through a power tripping device, and another signal output end of the power signal acquisition device is further connected with an alarm device.
In this embodiment, protection circuit constitute by overvoltage crowbar, undervoltage circuit and power protection circuit, overvoltage crowbar, undervoltage circuit and power protection circuit between connect through mutually independent parallel structure, can be timely carry out excessive pressure, power judgement to the voltage in the power supply circuit through overvoltage crowbar, undervoltage circuit and power protection circuit to carry out timely regulation and feedback to the data that power signal collection system gathered, timely realization is to power supply's protection control, adopt parallel connection mode to connect between the while, can effectually avoid the mutual interference between the different signals, effectual improvement signal processing and the accurate degree of judgement.
In this embodiment, the power signal collecting device is provided with a hot plug controller, and the hot plug controller is formed by connecting a current detection resistor and a hot plug MOSFET after the hot detection resistor and an ideal diode are connected in parallel, and the current detection resistor and the hot plug MOSFET are added after the ideal diode MOSFET connected in parallel to save one MOSFET. By arranging the detection resistor between the ideal diode and the hot-plug MOSFET, the damage to electric components is effectively prevented.
In this embodiment, the power supply tripping device includes an electronic release and a thermal trip long-delay protector, both ends of a tripping end of the thermal trip long-delay protector are respectively connected with the electronic release on a power supply switch of a power supply, and an input end of the thermal trip long-delay protector is directly connected with an output end of the power signal acquisition device, so that the thermal trip long-delay protector can effectively disconnect the power supply in time when the power supply has overvoltage and short circuit and has instantaneous large current, and effectively avoid damage of the instantaneous large current to components.
In this embodiment, the thermal trip long-delay protector is internally provided with a trip transmission mechanism for pushing tripping and a magnetic trip instantaneous protection mechanism.
In this embodiment, the power signal acquisition device and the protection circuit are both connected with the independent power supply, and the independent power supply can effectively prevent the real-time monitoring and feedback action of the protection circuit device on the power supply from being affected when the main circuit power supply fails.
In this embodiment, the collection frequency of the power signal collection device is 30 times/second, and by adopting the high-frequency real-time signal collection, the real-time performance during signal collection can be effectively improved, and the power supply fault can be correspondingly protected and processed in the shortest time.
In concrete real time, gather power supply source's signal through the signal acquisition device of power supply in real time, and judge whether the power operation power supply is normal, if normal, continue to carry out signal detection and collection, if abnormal, then one end output signal is to the protection circuit in, and through the overvoltage crowbar among the protection circuit, undervoltage circuit and power protection circuit carry out each item index in the power supply circuit of supplying power and adjust and handle, if adjust and accomplish then an output wants the signal acquisition device feedback normal, do not act, if handle abnormal then say signal transmission to the power supply trip gear of another output and carry out the processing of cutting off the power supply, and send the warning, in order to realize the guard action to power supply.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the foregoing description is illustrative in nature and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (6)
1. A power supply protection circuit device comprises a power supply and an independent power supply, and is characterized in that: the power supply on be equipped with the protection circuit device who is used for power protection, protection circuit device include protection circuit and power signal collection system, power signal collection system's collection input be connected with power supply's signal output part, power signal collection system's output be connected with power protection circuit's input, just protection circuit's feedback output pass through power trip unit and be connected with power supply's power supply control switch, another signal output part of power signal collection system still be connected with alarm device.
2. The power protection circuit arrangement of claim 1, wherein said protection circuit comprises an over-voltage circuit, a under-voltage circuit and a power protection circuit, and said over-voltage circuit, said under-voltage circuit and said power protection circuit are connected through independent parallel structures.
3. The power protection circuit device of claim 1, wherein a hot plug controller is disposed in the power signal acquisition device, and the hot plug controller is formed by connecting a current detection resistor and a hot plug MOSFET after the hot detection resistor and an ideal diode are connected in parallel.
4. The power protection circuit arrangement of claim 1, wherein the power release device comprises an electronic release and a thermal release long-delay protector, two ends of a release end of the thermal release long-delay protector are respectively connected to the electronic release on a power switch of the power supply, and an input end of the thermal release long-delay protector is directly connected to an output end of the power signal acquisition device.
5. The power protection circuit arrangement of claim 4, wherein said thermal trip long delay protector is provided with a trip actuator for driving the trip and a magnetic trip transient protection mechanism.
6. The power protection circuit arrangement of claim 1, wherein said power signal collection means and said protection circuit are connected to an independent power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921818928.5U CN211151510U (en) | 2019-10-25 | 2019-10-25 | Power supply protection circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921818928.5U CN211151510U (en) | 2019-10-25 | 2019-10-25 | Power supply protection circuit device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211151510U true CN211151510U (en) | 2020-07-31 |
Family
ID=71770128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921818928.5U Active CN211151510U (en) | 2019-10-25 | 2019-10-25 | Power supply protection circuit device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211151510U (en) |
-
2019
- 2019-10-25 CN CN201921818928.5U patent/CN211151510U/en active Active
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