CN213937946U - Multi-power supply system for explosion-proof network camera - Google Patents
Multi-power supply system for explosion-proof network camera Download PDFInfo
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- CN213937946U CN213937946U CN202120193786.9U CN202120193786U CN213937946U CN 213937946 U CN213937946 U CN 213937946U CN 202120193786 U CN202120193786 U CN 202120193786U CN 213937946 U CN213937946 U CN 213937946U
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Abstract
The utility model relates to a network appearance technical field of making a video recording especially relates to a be used for many power supply systems of explosion-proof network appearance of making a video recording, including power module, circuit module, network isolation transformer and connector, wherein, power module includes AC80 ~ 265V power, AC/DC24V power and RJ45(PoE + +) power, circuit module includes AC-DC converting circuit, a protection circuit, PD interface circuit, DC24V-DC12V converting circuit, DC18 ~ 72V-DC12V converting circuit, DC12V-DC24V converting circuit and a plurality of diode, the system is by power module, circuit module, network isolation transformer and connector electric connection constitute. Multiple power supply backup power supply, dual power supply of the connector outputs DC12V and DC24V and network data connection are realized.
Description
Technical Field
The utility model relates to a network appearance technical field that makes a video recording especially relates to a be used for many power supply system of explosion-proof network appearance of making a video recording.
Background
With the rapid development of information technology and the deep advance of smart grid construction, the fields of modern industry, building, communication, finance, medical treatment, fire control and the like have higher and higher requirements on the continuity and diversity of power supply systems. In order to ensure the continuity of power supply and avoid shutdown caused by power system faults, a multi-power supply backup power supply mode is adopted in many fields. The input power mainly comprises the voltage of American and Japanese AC110V, the voltage of Chinese and Russian AC220V, AC/DC24V and (PoE + +) direct current 48V, in addition, more and more monitoring devices need to use different output voltage power supplies to ensure the operation of the devices, for example, multiple types of anti-explosion network cameras need to use DC12V and DC24V direct current power supplies and network data, and the existing power supply system cannot meet the application of multiple power supplies, so a multi-power supply system needs to be designed to meet the requirement of multiple power supplies of the monitoring devices.
Disclosure of Invention
Problem to prior art existence, the utility model discloses realize in the design of many power supply system of explosion-proof network appearance of making a video recording that AC80 ~ 265V power, AC/DC24V power and RJ45(PoE + +) three kinds of power supply backup power supplies, realize connector output DC12V and DC24V dual supply and network data connection.
The specific technical scheme is as follows:
a multi-power supply system for an explosion-proof network camera comprises a power module, a circuit module, a network isolation transformer and a connector; the power supply module comprises an AC 80-265V power supply, an AC/DC24V power supply and an RJ45(PoE + +) power supply; the circuit module comprises an AC-DC conversion circuit, a protection circuit, a PD interface circuit, a DC24V-DC12V conversion circuit, a DC 18-72V-DC 12V conversion circuit, a DC12V-DC24V conversion circuit and a plurality of diodes.
The AC 80-265V power supply L end, the N end and the PE end are electrically connected with the input end of an AC-DC conversion circuit, the positive electrode output end of the AC-DC conversion circuit is connected with the positive electrode of a diode D1 and the input end of a DC24V-DC12V conversion circuit, the negative electrode of the diode D1 is electrically connected with the DC24V output port of the connector, the positive electrode output end of the DC24V-DC12V conversion circuit is connected with the positive electrode of a diode D2, and the negative electrode of a diode D2 is connected with the DC12V output port of the connector.
The L end/positive pole and the N end/negative pole of the AC/DC24V power supply are electrically connected with the input end of the protection circuit, the positive pole output end of the protection circuit is connected with the positive pole of a diode D3, the negative pole of a diode D3 is connected with the input end of the PD interface circuit, the positive pole of the output end of the PD interface circuit is connected with the positive pole of a diode D4, the negative pole of the diode D4 is electrically connected with the input end of a DC 18-72V-DC 12V conversion circuit, the positive pole output end of the DC 18-72V-DC 12V conversion circuit is electrically connected with the positive pole of a diode D5 and the input end of a DC12V-DC24V conversion circuit, the negative pole of the diode D5 is connected with the output port of a DC12V of the connector, the positive pole output end of the DC12V-DC24V conversion circuit is connected with the positive pole of a diode D6, and the negative pole of the diode D6 is connected with the output port of the DC24V of the connector.
An RJ45(PoE + +) power supply is electrically connected with an input end of a network isolation transformer, a network output end of the network isolation transformer is connected with an RJ45 output port of the connector, an anode and a cathode of a voltage output end of the network isolation transformer are electrically connected with an input end of a PD interface circuit, an anode of an output end of the PD interface circuit is connected with an anode of a diode D4, a cathode of the diode D4 is electrically connected with an input end of a DC 18-72V-DC 12V conversion circuit, an anode output end of the DC 18-72V-DC 12V conversion circuit is electrically connected with an anode of the diode D5 and an input end of the DC12V-DC24V conversion circuit, a cathode of the diode D5 is connected with an output port of the DC12V of the connector, an anode output end of the DC12V-DC24V conversion circuit is connected with an anode of the diode D6, and a cathode of the diode D6 is connected with an output port of the DC24V of the connector.
Further, the positive voltage of the output end of the AC-DC conversion circuit is DC24V, wherein the AC-DC conversion circuit is used for reducing the 80-265V alternating voltage to 24V direct current, and the 80-265V alternating voltage meets the input range of a global universal alternating current power grid.
Further, the positive voltage of the output end of the protection circuit is DC24V, wherein the protection circuit comprises: rectifier bridge circuit, surge circuit and electrostatic protection circuit, rectifier bridge circuit's effect is to change AC24V to DC 24V; the surge circuit has the function of preventing the sudden generation of peak voltage due to external interference in an electric loop or a communication line, and can be conducted and shunted in a very short time to avoid damage of surge to other circuits in the loop; the electrostatic protection circuit is used for protecting circuit components, and because most components in the protection circuit are electrostatic sensitive devices, the electrostatic protection circuit is needed.
Further, the positive voltage of the output end of the PD interface circuit is DC48V, wherein the PD interface circuit includes: signature detection circuit, consumption classification circuit and PD integrated chip, the signature detection circuit effect is for detecting PD input impedance value and input capacitance value, and the effect of consumption classification circuit is the required maximum power of matching PSE, and the PD integrated chip realizes DC/DC conversion function, steps up input end DC24V to DC 48V.
Further, the positive voltage of the output end of the DC24V-DC12V conversion circuit is DC12V, wherein the DC24V-DC12V conversion circuit is used for reducing the 24V direct current voltage to 12V direct current voltage.
Furthermore, the positive voltage of the output end of the DC 18-72V-DC 12V conversion circuit is DC12V, wherein the DC 18-72V-DC 12V conversion circuit is used for reducing the direct current voltage of 18-72V to the direct current voltage of 12V.
Further, the positive voltage of the output end of the DC12V-DC24V conversion circuit is DC24V, wherein the DC12V-DC24V conversion circuit is used for boosting the 12V direct current voltage to 24V direct current voltage.
Further, the connector includes a DC24V output port, a DC12V output port, an RJ45 output port, and a GND terminal.
Furthermore, the number of the output ports of the RJ45 of the connector can be multiple, and the number of the output ports ranges from 1 to 8.
Furthermore, the GND end of the AC-DC conversion circuit, the GND end of the protection circuit, the GND end of the PD interface circuit, the GND end of the DC24V-DC12V conversion circuit, the GND end of the DC 18-72V-DC 12V conversion circuit, and the GND end of the DC12V-DC24V conversion circuit are connected with the GND end of the connector.
Further, the cathode of the diode D1 and the cathode of the diode D6 are connected with the output port of the connector DC 24V; the cathode of the diode D2 and the cathode of the diode D5 are connected with the output port of the connector DC 12V.
Furthermore, any one, two or three of an AC 80-265V power supply, an AC/DC24V power supply or an RJ45(PoE + +) power supply supplies power.
Wherein, one power supply is an AC 80-265V power supply or an AC/DC24V power supply or an RJ45(PoE + +) power supply.
The two power supplies are an AC 80-265V power supply and an AC/DC24V power supply |; an AC 80-265V power supply and an RJ45(PoE + +) power supply; the AC/DC24V power supply RJ45(PoE + +) power supply supplies power respectively.
The three power supplies are an AC 80-265V power supply, an AC/DC24V power supply and an RJ45(PoE + +) power supply.
Therefore, three power supplies, namely an AC 80-265V power supply, an AC/DC24V power supply and an RJ45(PoE + +) power supply, are backed up for power supply.
Further, in the above-mentioned case,
a power supply, RJ45(PoE + +) power supply,
two power supplies are used for supplying power, namely an AC 80-265V power supply and an RJ45(PoE + +) power supply; AC/DC24V power RJ45(PoE + +) power,
three power supplies, namely an AC 80-265V power supply, an AC/DC24V power supply and RJ45(PoE + +),
the connector RJ45 output port provides a network data connection.
Furthermore, an RJ45(PoE + +) power supply is connected with the network isolation transformer through a network cable; the network output end of the isolation transformer is connected with the RJ45 output port of the connector through a network cable, and the single network cable can reduce the wiring and is convenient to maintain.
The network isolation transformer is used for separating a DC48V power supply from a data signal in an RJ45(PoE + +) power supply, and meanwhile, the network isolation transformer can also enhance a digital signal to enable the transmission distance of the digital signal to be longer.
The utility model has the advantages that:
1. the requirement of the input range of a global universal alternating current power grid is met, and multiple power supply backup use is realized by using the voltage of AC110V in the United states and Japan, the voltage of AC220V in China and Russia, the voltage of RJ45(PoE + +) DC48V and the voltage of AC/DC 24V.
2. And double power supplies of the DC24V and the DC12V are output, so that the requirements of the multi-model anti-explosion network camera on different voltages are met.
3. The RJ45(PoE + +) power supply is used, single network cable wiring of power supply data is achieved, wiring of the single network cable is reduced, and maintenance is facilitated.
Drawings
FIG. 1 is a block diagram of the design structure of the multi-power supply system for the anti-explosion network camera of the present invention;
in the figure, the position of the upper end of the main shaft,
1. a power supply module; 1-1, AC 80-265V power supply; 1-2, AC/DC24V power supply; 1-3, RJ45(PoE + +);
2. a circuit module; 2-1, an AC-DC conversion circuit; 2-2, a protection circuit; 2-3, a PD interface circuit; 2-4, DC24V-DC12V conversion circuit; 2-5, DC 18-72V-DC 12V conversion circuit; 2-6, DC12V-DC24V conversion circuit;
3. a network isolation transformer;
4. a connector is provided.
Detailed Description
The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings:
a multi-power supply system for an explosion-proof network camera, referring to fig. 1, comprises a power module 1, a circuit module 2, a network isolation transformer 3 and a connector 4; the power supply module comprises an AC 80-265V power supply 1-1, an AC/DC24V power supply 1-2 and an RJ45(PoE + +) power supply 1-3; the circuit module 2 comprises an AC-DC conversion circuit 2-1, a protection circuit 2-2, a PD interface circuit 2-3, a DC24V-DC12V conversion circuit 2-4, DC 18-72V-DC 12V conversion circuits 2-5, a DC12V-DC24V conversion circuit 2-6 and a plurality of diodes.
An L end, an N end and a PE end of an AC 80-265V power supply 1-1 are electrically connected with an input end of an AC-DC conversion circuit 2-1, an anode output end of the AC-DC conversion circuit 2-1 is connected with an anode of a diode D1 and an input end of a DC24V-DC12V conversion circuit 2-4, a cathode of the diode D1 is electrically connected with a DC24V output port of a connector 4, an anode output end of the DC24V-DC12V conversion circuit 2-4 is connected with an anode of the diode D2, and a cathode of the diode D2 is connected with a DC12V output port of the connector 4.
The L end/anode and the N end/cathode of the AC/DC24V power supply 1-2 are electrically connected with the input end of the protection circuit 2-2, the anode output end of the protection circuit 2-2 is connected with the anode of the diode D3, the cathode of the diode D3 is connected with the input end of the PD interface circuit 2-3, the anode of the PD interface circuit 2-3 is connected with the anode of the diode D4, the cathode of the diode D4 is electrically connected with the input ends of the DC 18-72V-DC 12V conversion circuits 2-5, the anode output ends of the DC 18-72V-DC 12V conversion circuits 2-5 are electrically connected with the anode of the diode D5 and the input ends of the DC12V-DC24V conversion circuits 2-6, the cathode of the diode D5 is connected with the DC12V output end of the connector 4, the anode output end of the DC12V-DC24V conversion circuits 2-6 is connected with the anode of the diode D6, and the cathode of the diode D6 is connected with the DC24 output port 24V of the connector 4.
An RJ45(PoE + +) power supply 1-3 is electrically connected with an input end of a network isolation transformer 3, a network output end of the network isolation transformer 3 is connected with a plurality of RJ45 output ports of a connector 4, an anode and a cathode of a voltage output end of the network isolation transformer 3 are electrically connected with an input end of a PD interface circuit 2-3, an anode of an output end of the PD interface circuit 2-3 is connected with an anode of a diode D4, a cathode of the diode D4 is electrically connected with input ends of DC 18-72V-DC 12V conversion circuits 2-5, anodes of the DC 18-72V-DC 12V conversion circuits 2-5 are electrically connected with an anode of a diode D5 and input ends of DC12V-DC24V conversion circuits 2-6, a cathode of the diode D5 is connected with an output end of DC12V of the connector 4, an anode of the DC12V-DC24V conversion circuits 2-6 is connected with an anode of a diode D6, and a cathode of the diode D6 is connected with an output port of DC24V of the connector 4.
Further, the network isolation transformer 3 is used for separating network data and power data of the RJ45(PoE + +) power supplies 1-3, and the power output port of the network isolation transformer 3 is positive and negative 48V direct-current voltage.
The positive voltage of the output end of the AC-DC conversion circuit 2-1 is DC24V, wherein the AC-DC conversion circuit 2-1 is used for reducing 80-265V alternating current voltage to 24V direct current.
The positive voltage of the output end of the protection circuit 2-2 is DC24V, wherein the protection circuit 2-2 comprises: rectifier bridge circuit, surge circuit and electrostatic protection circuit, rectifier bridge circuit's effect is to change AC24V to DC 24V; the surge circuit has the function of preventing the sudden generation of peak voltage due to external interference in an electric loop or a communication line, and can be conducted and shunted in a very short time to avoid damage of surge to other circuits in the loop; the electrostatic protection circuit is used for protecting circuit components, and because most components in the protection circuit are electrostatic sensitive devices, the electrostatic protection circuit is needed.
The positive voltage of the output end of the PD interface circuit 2-3 is DC48V, wherein the PD interface circuit 2-3 includes: signature detection circuit, power consumption classification circuit and PD integrated chip, the signature detection circuit effect is for detecting PD input impedance value and input capacitance value, and the power consumption classification circuit effect is the required maximum power of matching PSE, and the PD integrated chip realizes DC/DC conversion function, is that DC24V is boosted to DC 48V.
The positive voltage of the output end of the DC24V-DC12V conversion circuit 2-4 is DC12V, wherein the DC24V-DC12V conversion circuit 2-4 is used for reducing the 24V direct current voltage to 12V direct current voltage.
The positive voltage of the output end of the DC 18-72V-DC 12V conversion circuit 2-5 is DC12V, wherein the DC 18-72V-DC 12V conversion circuit 2-5 is used for reducing the direct current voltage of 18-72V to the direct current voltage of 12V.
The positive voltage of the output end of the DC12V-DC24V conversion circuit 2-6 is DC24V, wherein the DC12V-DC24V conversion circuit 2-4 is used for boosting the 12V direct current voltage to 24V direct current voltage.
The connector 4 includes a DC24V output port, a DC12V output port, an RJ45 output port, and a GND terminal.
The GND terminal of the AC-DC conversion circuit 2-1 is connected with the GND terminal of the DC24V-DC12V conversion circuit 2-4; the GND end of the protection circuit 2-2 and the GND end of the PD interface circuit 2-3 are connected with the GND ends of the DC 18-72V-DC 12V conversion circuits 2-5; GND ends of the DC 18-72V-DC 12V conversion circuits 2-5 are connected with GND ends of the DC12V-DC24V conversion circuits 2-6; the GND terminals of the DC24V-DC12V conversion circuits 2-4, the DC 18-72V-DC 12V conversion circuits 2-5, and the DC12V-DC24V conversion circuits 2-6 are connected to the GND terminal of the connector.
The cathodes of the diode D1 and the diode D6 are connected with the DC24V output port of the connector 4; the cathode of the diode D2 and the cathode of the diode D5 are connected to the DC12V output port of the connector 4.
There may be multiple RJ45 output ports of connector 4, with the number of output ports ranging from 1-8.
The RJ45(PoE + +) power supply 1-3 is connected with the network isolation transformer 3 through a network cable; the network output end of the isolation transformer 3 is connected with the RJ45 output port of the connector 4 through a network cable, and the single network cable wiring can reduce wiring and is convenient to maintain.
The network isolation transformer 3 is used for separating a DC48V power supply and a data signal in an RJ45(PoE + +) power supply 1-3, and meanwhile, can enhance a digital signal to enable the transmission distance of the digital signal to be longer.
Any one, two or three of an AC 80-265V power supply 1-1, an AC/DC24V power supply 1-2 or an RJ45(PoE + +) power supply 1-3.
Wherein, one power supply is an AC 80-265V power supply 1-1, an AC/DC24V power supply 1-2 or an RJ45(PoE + +) power supply 1-3 which supplies power independently.
The two power supplies are an AC 80-265V power supply 1-1 and an AC/DC24V power supply 1-2 |; AC 80-265V power supply 1-1 and RJ45(PoE + +) power supply 1-3; the AC/DC24V power supply 1-1 and the RJ45(PoE + +) power supply 1-3 supply power, respectively.
The three power supplies are an AC 80-265V power supply 1-1, an AC/DC24V power supply 1-2 and an RJ45(PoE + +) power supply 1-3.
The implementation process of backup power supply of an input power supply is described by taking the combined power supply of an AC 80-265V power supply 1-1 and an RJ45(PoE + +) power supply 1-3 as an example:
when an input power supply is an AC 80-265V power supply 1-1, the input power supply passes through an AC-DC conversion circuit 2-1, a DC24V-12V conversion circuit 2-4, a diode D1 and a diode D2, the negative pole voltage of the diode D1 is DC24V, and the negative pole voltage of the diode D2 is DC 12V; when an input power supply is an RJ45(PoE + +) power supply 1-3, and passes through a PD interface circuit 2-3, a diode D4, a DC 18-72V-DC 12V conversion circuit 2-5, a diode D5, a diode D6 and a DC12V-DC24V conversion circuit 2-6, the voltage of the cathode of the diode D5 is DC12V, and the voltage of the cathode of the diode D6 is DC 24V; diode D1 and diode D6 together provide DC24V for connector 4, and diode D2 and diode D5 together provide DC12V for connector 4.
When the input power supply is AC 80-265V power supply 1-1 is disconnected, the cathode voltage of the diode D1 is 0, the cathode voltage of the diode D2 is 0, the cathode voltage of the diode D5 is DC12V, the cathode voltage of the diode D6 is DC24V, and the DC12V and the DC24V are continuously output to the connector 4, so that backup use of the input power supply of the AC 80-265V power supply 1-1 and the input power supply of the RJ45(PoE + +) power supply 1-3 is realized.
When the input power supply contains RJ45(PoE + +) power supply, the network output end of the network isolation transformer is connected with the RJ45 output port of the connector to provide network data, and when the input power supply does not contain RJ45(PoE + +) power supply, the RJ45 output port of the connector cannot provide network data.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. A multi-power supply system for an explosion-proof network camera is characterized by comprising a power supply module (1), a circuit module (2), a network isolation transformer (3) and a connector (4), wherein the power supply module comprises an AC 80-265V power supply (1-1), an AC/DC24V power supply (1-2) and an RJ45(PoE + +) power supply (1-3), and the circuit module comprises an AC-DC conversion circuit (2-1), a protection circuit (2-2), a PD interface circuit (2-3), a DC24V-DC12V conversion circuit (2-4), a DC 18-72V-DC 12V conversion circuit (2-5), a DC12V-DC24V conversion circuit (2-6) and a plurality of diodes;
the L end, the N end and the PE end of the AC 80-265V power supply (1-1) are electrically connected with the input end of the AC-DC conversion circuit (2-1), the positive electrode output end of the AC-DC conversion circuit (2-1) is connected with the positive electrode of a diode D1 and the input end of the DC24V-DC12V conversion circuit (2-4), the negative electrode of the diode D1 is electrically connected with the DC24V output port of the connector (4), the positive electrode output end of the DC24V-DC12V conversion circuit (2-4) is connected with the positive electrode of the diode D2, and the negative electrode of the diode D2 is connected with the DC12V output port of the connector (4);
the AC/DC24V power source (1-2) has L terminal/positive terminal and N terminal/negative terminal electrically connected to the input terminal of the protection circuit (2-2), the positive terminal of the protection circuit (2-2) is connected to the positive terminal of a diode D3, the negative terminal of a diode D3 is connected to the input terminal of the PD interface circuit (2-3), the positive terminal of the output terminal of the PD interface circuit (2-3) is connected to the positive terminal of a diode D4, the negative terminal of the diode D4 is connected to the input terminals of the DC 18-72V-DC 12V conversion circuit (2-5), the positive terminal of the DC 18-72V-DC 12V conversion circuit (2-5) is connected to the positive terminal of a diode D5 and the input terminal of the DC12V-DC24V conversion circuit (2-6), the negative terminal of the diode D5 is connected to the DC12V output terminal of the connector (4), the positive output end of the DC12V-DC24V conversion circuit (2-6) is connected with the positive electrode of a diode D6, and the negative electrode of the diode D6 is connected with the DC24V output port of the connector (4);
the RJ45(PoE + +) power supply (1-3) is electrically connected with the input end of the network isolation transformer (3), the network output end of the network isolation transformer (3) is connected with the RJ45 output port of the connector (4), the positive pole and the negative pole of the voltage output end of the network isolation transformer (3) are electrically connected with the input end of the PD interface circuit (2-3), the positive pole of the output end of the PD interface circuit (2-3) is connected with the positive pole of the diode D4, the negative pole of the diode D4 is electrically connected with the input ends of the DC 18-72V-DC 12V conversion circuit (2-5), the positive pole output end of the DC 18-72V-DC 12V conversion circuit (2-5) is electrically connected with the positive pole of the diode D5 and the input end of the DC12V-DC24V conversion circuit (2-6), the negative pole of the diode D5 is connected with the DC12 output port 12V of the connector (4), the positive output end of the DC12V-DC24V conversion circuit (2-6) is connected with the positive electrode of the diode D6, and the negative electrode of the diode D6 is connected with the DC24V output port of the connector (4).
2. The multi-power supply system for the explosion-proof network camera according to claim 1, characterized in that: the positive voltage of the output end of the AC-DC conversion circuit (2-1) is DC24V, the positive voltage of the output end of the protection circuit (2-2) is DC24V, the positive voltage of the output end of the PD interface circuit (2-3) is DC48V, the positive voltage of the output end of the DC24V-DC12V conversion circuit (2-4) is DC12V, the positive voltage of the output end of the DC 18-72V-DC 12V conversion circuit (2-5) is DC12V, and the positive voltage of the output end of the DC12V-DC24V conversion circuit (2-6) is DC 24V.
3. The multi-power supply system for the explosion-proof network camera according to claim 1, characterized in that: the connector (4) has a plurality of RJ45 output ports, and the number of the RJ45 output ports of the connector (4) ranges from 1 to 8.
4. The multi-power supply system for the explosion-proof network camera according to claim 1, characterized in that: the AC-DC conversion circuit (2-1) GND terminal, the protection circuit (2-2) GND terminal, the PD interface circuit (2-3) GND terminal, the DC24V-DC12V conversion circuit (2-4) GND terminal, the DC 18-72V-DC 12V conversion circuit (2-5) GND terminal, and the DC12V-DC24V conversion circuit (2-6) GND terminal are connected with the connector (4) GND terminal.
5. The multi-power supply system for the explosion-proof network camera according to claim 1, characterized in that: the cathode of the diode D1 and the cathode of the diode D6 are connected with the DC24V output port of the connector (4);
the cathode of the diode D2 and the cathode of the diode D5 are connected with the output port of the DC12V of the connector (4).
6. The multi-power supply system for the explosion-proof network camera according to claim 1, characterized in that: any one, two or three of the AC 80-265V power supply (1-1), the AC/DC24V power supply (1-2) or the RJ45(PoE + +) power supply (1-3) supplies power.
7. The multi-power supply system for the explosion-proof network camera according to claim 1, characterized in that: the RJ45(PoE + +) power supply (1-3) is connected with the network isolation transformer (3) through a network cable;
and the network output end of the network isolation transformer (3) is connected with the RJ45 output port of the connector (4) through a network cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120193786.9U CN213937946U (en) | 2021-01-22 | 2021-01-22 | Multi-power supply system for explosion-proof network camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120193786.9U CN213937946U (en) | 2021-01-22 | 2021-01-22 | Multi-power supply system for explosion-proof network camera |
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| Publication Number | Publication Date |
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| CN213937946U true CN213937946U (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120193786.9U Active CN213937946U (en) | 2021-01-22 | 2021-01-22 | Multi-power supply system for explosion-proof network camera |
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2021
- 2021-01-22 CN CN202120193786.9U patent/CN213937946U/en active Active
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