CN214380081U - Outdoor DC power supply of lightning protection - Google Patents
Outdoor DC power supply of lightning protection Download PDFInfo
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- CN214380081U CN214380081U CN202022806657.0U CN202022806657U CN214380081U CN 214380081 U CN214380081 U CN 214380081U CN 202022806657 U CN202022806657 U CN 202022806657U CN 214380081 U CN214380081 U CN 214380081U
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Abstract
The utility model discloses an outdoor DC power supply of lightning protection, including one-level lightning protection module, second grade lightning protection module, tertiary lightning protection module, DC power supply module, one-level lightning protection module is located the commercial power input front end, second grade lightning protection module is located between commercial power input and the DC power supply module, tertiary lightning protection module is located between DC power supply module and the load module. The utility model discloses a tertiary lightning protection circuit realizes setting up alternating current input front end, alternating current input and the DC power supply junction at DC power supply respectively to outdoor DC power supply's protection to and DC power supply output, can play the lightning protection effect to power itself and load, and the reliability is better. In addition, the voltage, the current, the positioning information and the lightning stroke frequency data of the direct current power supply can be wirelessly sent to a remote end to be monitored, so that the outdoor direct current power supply under large-scale application occasions can be managed and maintained conveniently.
Description
The technical field is as follows:
the utility model relates to a power technical field especially relates to an outdoor DC power supply of lightning protection.
Background art:
the direct current power supply is widely applied, and is useful for supplying power to indoor electronic and electric equipment, such as televisions, computers and LED lamps, and also useful for supplying power to outdoor equipment, such as outdoor lighting lamps and communication base station equipment. In order to ensure the reliability and stability of the outdoor DC power supply, the outdoor DC power supply needs to be protected against lightning for some power supplies arranged at higher positions in addition to moisture, water and dust.
The existing direct current power supply lightning protection design is generally to design a lightning protection module based on a piezoresistor on an alternating current input end of a circuit board, but the reliability of the lightning protection module is still poor, and the lightning protection module still cannot play a reliable protection role in large-scale lightning and longer-duration lightning.
The utility model has the following contents:
an object of the utility model is to provide an outdoor DC power supply of lightning protection to solve prior art not enough.
The utility model discloses by following technical scheme implement: the utility model provides an outdoor DC power supply of lightning protection, includes one-level lightning protection module, second grade lightning protection module, tertiary lightning protection module, DC power supply module, one-level lightning protection module is located the commercial power input front end, second grade lightning protection module is located between commercial power input and the DC power supply module, tertiary lightning protection module is located between DC power supply module and the load module.
Preferably, still include current detection module, voltage detection module, single chip processor, orientation module, wireless communication module, power module and thunder and lightning counter, direct current power module is connected to current detection module, voltage detection module, current detection module, voltage detection module still connect single chip processor, single chip processor still is connected with orientation module, wireless communication module, power module and thunder and lightning counter electricity.
Preferably, the primary lightning protection module includes piezoresistors RV1, RV2, RV3, a temperature fuse TF1, TF2, TF3 and a ceramic gas discharge tube G1, the piezoresistors RV1, the temperature fuse TF1, the piezoresistor RV3 and the temperature fuse TF3 are sequentially connected in series between a live line L and one end of the ceramic gas discharge tube G1, the piezoresistors RV2 and the temperature fuse TF2 are connected between one ends of the live line L and the ceramic gas discharge tube G1, the other end of the ceramic gas discharge tube G1 is connected with a protection ground terminal PE, and the connection ends of the temperature fuse TF1 and the piezoresistor RV3 are connected with a neutral line N.
Preferably, the secondary lightning protection module includes PTC thermistor PTC1, piezo-resistor RV4 and ceramic gas discharge tube G2, PTC thermistor PTC1 connects in series on live wire L, PTC thermistor PTC1 is connected to piezo-resistor RV4 one end, zero line N is connected to the piezo-resistor RV4 other end, ceramic gas discharge tube G2 is connected between zero line N and protection earthing terminal PE, piezo-resistor RV4 connects in parallel at the dc power supply module input.
Preferably, the three-level lightning protection module comprises a voltage dependent resistor RV5, a temperature fuse TF4 and a ceramic gas discharge tube G3, the voltage dependent resistor RV5 and the temperature fuse TF4 are connected in series between output ends of the dc power supply module, the temperature fuse TF4 is further connected to one end of the ceramic gas discharge tube G3, and the other end of the ceramic gas discharge tube G3 is connected to a protection ground terminal PE.
Preferably, the wireless communication module is a bluetooth module, a WIFI module or a 4G/5G module.
The utility model has the advantages that:
the utility model discloses a tertiary lightning protection circuit realizes setting up alternating current input front end, alternating current input and the DC power supply junction at DC power supply respectively to outdoor DC power supply's protection to and DC power supply output, can play the lightning protection effect to power itself and load, and the reliability is better. In addition, the voltage, the current, the positioning information and the lightning stroke frequency data of the direct current power supply can be wirelessly sent to a remote end to be monitored, so that the outdoor direct current power supply under large-scale application occasions can be managed and maintained conveniently.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic block diagram of an outdoor dc power supply for lightning protection according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a primary lightning protection module of a lightning protection outdoor dc power supply according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a two-stage lightning protection module of an outdoor dc power supply of the lightning protection system according to an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a three-level lightning protection module of an outdoor dc power supply of lightning protection in an embodiment of the present invention.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, an outdoor dc power supply for lightning protection comprises a primary lightning protection module 1, a secondary lightning protection module 2, a tertiary lightning protection module 3 and a dc power supply module 4, wherein the primary lightning protection module 1 is located at the front end of a mains supply input end, the secondary lightning protection module 2 is located between the mains supply input end and the dc power supply module 4, and the tertiary lightning protection module 3 is located between the dc power supply module 4 and a load module. Simultaneously, still include current detection module 5, voltage detection module 6, single chip processor 7, orientation module 8, wireless communication module 9, power module 10 and thunder and lightning counter 11, current detection module 5, voltage detection module 6 connect direct current power module 4, current detection module 5, voltage detection module 6 still connect single chip processor 7, single chip processor 7 still is connected with orientation module 8, wireless communication module 9, power module 10 and thunder and lightning counter 11 electricity.
Wherein, current detection module 5, voltage detection module 6 are electric current, voltage collector, and orientation module 8 is GPS module or big dipper module, and wireless communication module 9 is bluetooth module, WIFI module or 4G 5G module, and power module 10 is the lithium cell. The lightning counter 11 is an existing device, such as a GED-JSQ lightning counter, and has a lightning stroke counting function, and when lightning stroke surge current passes through an induction coil of the counter, the counter induces current to accumulate the number of lightning strokes.
As shown in fig. 2, the primary lightning protection module 1 includes a voltage dependent resistor RV1, RV2, RV3, a temperature fuse TF1, TF2, TF3 and a ceramic gas discharge tube G1, the voltage dependent resistor RV1, the temperature fuse TF1, a voltage dependent resistor RV3 and the temperature fuse TF3 are sequentially connected in series between a live line L and one end of the ceramic gas discharge tube G1, the voltage dependent resistor RV2 and the temperature fuse TF2 are connected between the live line L and one end of the ceramic gas discharge tube G1, the other end of the ceramic gas discharge tube G1 is connected to a protection ground terminal PE, and the connection end of the temperature dependent resistor TF1 and the voltage dependent resistor RV3 is connected to a neutral line N. The connecting structure realizes that the piezoresistor and the temperature protective tube are connected in series between the three ends of the live wire L, the zero wire N and the protective grounding end PE, a composite symmetrical circuit is adopted, common mode and differential mode full protection is adopted, L, N can be connected conveniently and safely, the piezoresistor can be separated from the circuit after short circuit failure, and fire disasters can not be caused generally.
As shown in fig. 3, the secondary lightning protection module 2 includes a PTC thermistor PTC1, a voltage dependent resistor RV4 and a ceramic gas discharge tube G2, the PTC thermistor PTC1 is connected in series to the live line L, one end of the voltage dependent resistor RV4 is connected to the PTC thermistor PTC1, the other end of the voltage dependent resistor RV4 is connected to the neutral line N, the ceramic gas discharge tube G2 is connected between the neutral line N and the protection ground terminal PE, and the voltage dependent resistor RV4 is connected in parallel to the input end of the dc power supply module 4. The PTC1 is selected according to the input current and the highest working environment temperature, the through-current capacity of the piezoresistor RV4 is selected according to the input surge current, and the secondary protection effect on the surge current brought by lightning can be achieved.
As shown in fig. 4, the three-stage lightning protection module 3 includes a voltage dependent resistor RV5, a temperature fuse TF4 and a ceramic gas discharge tube G3, the voltage dependent resistor RV5 and the temperature fuse TF4 are connected in series between the output terminals of the dc power supply module 4, the temperature fuse TF4 is further connected to one end of the ceramic gas discharge tube G3, and the other end of the ceramic gas discharge tube G3 is connected to a protection ground terminal PE. The ceramic gas discharge tube comprises a piezoresistor RV5, a temperature fuse TF4 and a ceramic gas discharge tube G3, wherein the temperature fuse TF4 is generally 130-135 ℃ and 10A/250V and should be well thermally coupled with the piezoresistor RV5, the through-current capacity of the ceramic gas discharge tube G3 is selected according to the required through-current capacity, and the direct-current breakdown voltage is generally 90V. The circuit can play a role in protecting surge current caused by lightning for three times.
To sum up, the utility model discloses a tertiary lightning protection circuit realizes setting up alternating current input front end, alternating current input and the DC power supply junction at DC power supply respectively to outdoor DC power supply's protection to and DC power supply output, can play the lightning protection effect to power itself and load, and the reliability is better. In addition, the voltage, the current, the positioning information and the lightning stroke frequency data of the direct current power supply can be wirelessly sent to a remote end to be monitored, so that the outdoor direct current power supply under large-scale application occasions can be managed and maintained conveniently.
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 utility model provides an outdoor DC power supply of lightning protection, its characterized in that, includes one-level lightning protection module (1), second grade lightning protection module (2), tertiary lightning protection module (3), DC power supply module (4), one-level lightning protection module (1) is located the mains input front end, second grade lightning protection module (2) is located between mains input and DC power supply module (4), tertiary lightning protection module (3) is located between DC power supply module (4) and the load module.
2. The lightning protection outdoor direct current power supply according to claim 1, further comprising a current detection module (5), a voltage detection module (6), a single chip processor (7), a positioning module (8), a wireless communication module (9), a power supply module (10) and a lightning counter (11), wherein the current detection module (5) and the voltage detection module (6) are connected with the direct current power supply module (4), the current detection module (5) and the voltage detection module (6) are further connected with the single chip processor (7), and the single chip processor (7) is further electrically connected with the positioning module (8), the wireless communication module (9), the power supply module (10) and the lightning counter (11).
3. The lightning protection outdoor direct-current power supply of claim 1, wherein the primary lightning protection module (1) comprises piezoresistors RV1, RV2, RV3, a temperature fuse TF1, TF2, TF3 and a ceramic gas discharge tube G1, the piezoresistor RV1, the temperature fuse TF1, the piezoresistor RV3 and the temperature fuse TF3 are sequentially connected in series between a live line L and one end of the ceramic gas discharge tube G1, the piezoresistor RV2 and the temperature fuse TF2 are connected between the live line L and one end of the ceramic gas discharge tube G1, the other end of the ceramic gas discharge tube G1 is connected with a protection ground terminal PE, and the connection ends of the temperature fuse TF1 and the piezoresistor RV3 are connected with a neutral line N.
4. The outdoor direct-current power supply for lightning protection of claim 1 is characterized in that the secondary lightning protection module (2) comprises a PTC thermistor PTC1, a varistor RV4 and a ceramic gas discharge tube G2, wherein the PTC thermistor PTC1 is connected in series with the live line L, one end of the varistor RV4 is connected with the PTC thermistor PTC1, the other end of the varistor RV4 is connected with the neutral line N, the ceramic gas discharge tube G2 is connected between the neutral line N and the protection ground terminal PE, and the varistor RV4 is connected in parallel with the input end of the direct-current power supply module (4).
5. The outdoor DC power supply for lightning protection of claim 1 characterized in that the three-stage lightning protection module (3) comprises a voltage dependent resistor RV5, a temperature fuse TF4 and a ceramic gas discharge tube G3, wherein the voltage dependent resistor RV5 and the temperature fuse TF4 are connected in series between the output terminals of the DC power supply module (4), the temperature fuse TF4 is further connected with one end of a ceramic gas discharge tube G3, and the other end of the ceramic gas discharge tube G3 is connected with a protection ground terminal PE.
6. The lightning protection outdoor direct current power supply according to claim 2, wherein the wireless communication module (9) is a bluetooth module, a WIFI module or a 4G/5G module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022806657.0U CN214380081U (en) | 2020-11-26 | 2020-11-26 | Outdoor DC power supply of lightning protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022806657.0U CN214380081U (en) | 2020-11-26 | 2020-11-26 | Outdoor DC power supply of lightning protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214380081U true CN214380081U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022806657.0U Active CN214380081U (en) | 2020-11-26 | 2020-11-26 | Outdoor DC power supply of lightning protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214380081U (en) |
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2020
- 2020-11-26 CN CN202022806657.0U patent/CN214380081U/en active Active
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