CN211508913U - 5G equipment power supply system - Google Patents
5G equipment power supply system Download PDFInfo
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- CN211508913U CN211508913U CN202020306919.4U CN202020306919U CN211508913U CN 211508913 U CN211508913 U CN 211508913U CN 202020306919 U CN202020306919 U CN 202020306919U CN 211508913 U CN211508913 U CN 211508913U
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- 238000002955 isolation Methods 0.000 claims description 10
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- 238000013461 design Methods 0.000 description 1
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Abstract
The utility model discloses a 5G equipment power supply system, including outdoor switch power supply unit (1) and direct current one-way switch-on unit (2), wherein, outdoor switch power supply unit (1) is located the basic station outdoor, and it has waterproof shell (11) the inside of waterproof shell (11) is provided with consecutive input filter subunit (12), APFC liter subunit (13) and DCDC and keeps apart power subunit (14), and direct current one-way switch-on unit (2) keeps apart outdoor switch power supply unit (1) and basic station original switching power supply system. The utility model provides a 5G equipment power supply system device has not additionally increased the base station air conditioner consumption, has reduced the cable loss, has reduced advantages such as cable line footpath, base station battery spare power ability sharing.
Description
Technical Field
The utility model relates to a communication field, concretely relates to power supply unit especially relates to a 5G equipment power supply system.
Background
With the development and progress of the technology, 5G communication starts to enter a construction application stage, operators start large-scale deployment of 5G communication equipment, a construction mode that 5G equipment is newly added in a stock base station is preferentially adopted according to national policy requirements and network deployment planning, the characteristic of high power consumption of the 5G equipment provides higher requirements for the supply and standby electric energy of a base station switch power supply system, the capacity of a part of stock base station switch power supplies is limited, the power supply requirements after the 5G equipment is newly added cannot be met, and the switch power supply system needs to be newly added, and the traditional newly added switch power supply system scheme has the following problems:
1. the scheme of newly adding an indoor embedded switch power supply system, improving and expanding the insertion frame and replacing a high-capacity switch power supply is high in investment cost; after the capacity of the switching power supply is increased, the heat generated by working is increased, the refrigeration resources of the base station air conditioner are occupied, and the power consumption of the base station air conditioner is increased;
2.5G equipment has large power consumption, the traditional switching power supply has floating charge voltage DC53.5V, the loss of a transmission cable is large, and the cable diameter needs to be thickened for long-distance transmission; if the voltage is adjusted to be high (DC56.4V), the existing lead-acid battery of the base station can not be used as a standby power supply;
3. under the condition that the capacity of the base station battery meets the power supply requirement of the newly-added 5G equipment, the newly-added switch power supply system cannot share the base station battery with the existing switch power supply system.
Therefore, in the prior art, research is urgently needed, and a device and an application method are designed, so that under the condition that the capacity of an original switching power supply is insufficient and a switching power supply needs to be newly added for 5G communication equipment, sharing of the switching power supplies with different float charging voltage levels is realized, the newly added switching power supply independently supplies power for the 5G equipment, the existing storage battery pack of a base station is shared, power supply for the 5G equipment is provided, meanwhile, the power consumption of an air conditioner of the base station is not increased, and the purposes of energy conservation and emission reduction are achieved.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above problems, the present inventors have conducted intensive studies to design a 5G device power supply system, which includes an outdoor switching power supply unit 1 and a dc unidirectional conducting unit 2, wherein,
the outdoor switch power supply unit 1 is located outside the base station and is provided with a waterproof shell 11, an input filter subunit 12, an APFC voltage boosting subunit 13 and a DCDC isolated power supply subunit 14 which are connected in sequence are arranged inside the waterproof shell 11,
the input filter subunit 12 has an input soft start circuit and a two-stage EMC filter circuit,
the APFC voltage boost sub-unit 13 is a unit having a function of reducing line loss and stabilizing voltage,
the DCDC isolated power supply subunit 14 employs a half-bridge scheme, a dual transformer mode for conversion,
the direct current one-way conduction unit 2 isolates the outdoor switch power supply unit 1 from the original switch power supply system of the base station.
The DCDC isolation power supply subunit 14 adopts two MOS transistors as an upper bridge arm and a lower bridge arm, and connects the resonant inductors in series, and the later stage performs synchronous rectification through the MOS transistors.
The input filtering subunit 12 also has a discharge resistor.
The output end of the DCDC isolation power supply subunit 14 is a high voltage, and the high voltage is DC 54V-DC 60V.
The direct current one-way conduction unit 2 is provided with a shell 21, a one-way input end 201 and a one-way output end 202 are arranged on the shell 21, the DCDC isolation power supply subunit 14 is connected with the one-way output end 202 of the direct current one-way conduction unit 2, the one-way output end 202 is connected with 5G communication equipment, and the one-way input end 201 of the direct current one-way conduction unit 2 is connected with the direct current output of an original switch power supply system of a base station.
A unidirectional conducting diode device 22 is also arranged in the housing 21 of the flow unidirectional conducting unit 2, so that current can only flow from the unidirectional input 201 to the unidirectional output 202 of the dc unidirectional conducting unit 2.
The unidirectional conducting diode device 22 is a low VF (forward voltage drop), high Io (on current) schottky type diode.
A heat sink meeting the peak current capability 300A is also mounted on the unidirectional conducting diode device 22 to dissipate heat therefrom.
A bypass switch 23 is also provided in the housing 21, said bypass switch 23 being connected in parallel with the unidirectional conducting diode device 22.
The bypass switch 23 is a high reliability dc contactor.
The utility model provides a 5G equipment power supply system has following beneficial effect:
(1) according to the utility model provides a 5G equipment power supply system has outdoor switching power supply unit, under the prerequisite of solving that the existing switching power supply capacity of base station does not satisfy 5G system communication equipment power supply, outdoor installation, the natural heat dissipation can not additionally increase the base station air conditioner consumption, reaches energy saving and emission reduction's purpose;
(2) according to the 5G equipment power supply system provided by the utility model, aiming at the characteristic of large power consumption of 5G equipment, the output of the outdoor switch power supply unit is high voltage, thereby reducing the cable loss, reducing the cable diameter and saving the construction cost;
(3) according to the 5G equipment power supply system provided by the utility model, the isolation of the outdoor switch power supply unit 1 from the original switch power supply system of the base station is realized through the direct current one-way conduction device, and the power supply for the load connected to the original switch power supply system of the base station due to high voltage level is avoided;
(4) according to the utility model provides a 5G equipment power supply system has realized the sharing of different float voltage level switch power, and basic station battery spare power ability sharing has reduced the construction investment cost under the prerequisite of guaranteeing 5G equipment power supply spare power.
Drawings
Fig. 1 is a schematic diagram illustrating an overall structure of a 5G device power supply system according to a preferred embodiment of the present invention;
fig. 2 is a schematic structural view of an outdoor switching power supply unit according to a preferred embodiment of the present invention;
fig. 3 shows a schematic diagram of an input filtering subunit according to a preferred embodiment of the present invention;
fig. 4 shows a schematic structural diagram of an APFC boost sub-unit according to a preferred embodiment of the present invention;
fig. 5 shows a schematic structural diagram of a DCDC isolated power supply subunit according to a preferred embodiment of the present invention;
fig. 6 is a schematic structural diagram of a dc unidirectional conducting unit according to a preferred embodiment of the present invention.
The reference numbers illustrate:
1-outdoor switching power supply unit;
11-a waterproof housing;
12-an input filtering subunit;
13-APFC boost subunit;
14-a DCDC isolated power supply subunit;
2-a direct current unidirectional conduction unit;
21-a housing;
201-unidirectional input;
202-one-way output;
22-a unidirectional conducting diode device;
23-bypass switch.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and embodiments. The features and advantages of the present invention will become more apparent from the description.
In which, although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The utility model provides a 5G equipment power supply system, this system include outdoor switch power supply unit 1 and direct current one-way switch on unit 2.
As shown in figure 1, the 5G equipment power supply system is arranged outdoors and connected with the original switch power supply system of the base station and the 5G communication equipment.
Specifically, outdoor switch power supply unit 1 has waterproof housing 11 in the utility model discloses in, it is right no specific requirement is in the shape of waterproof housing 11, as long as can satisfy waterproofly can.
In a preferred embodiment, the waterproof housing 11 is integrally formed by die casting, and a waterproof terminal is disposed on the waterproof housing 11 to achieve a waterproof function, and more preferably, the waterproof terminal meets IP65 and above standard to meet the requirement of outdoor waterproof use.
In a preferred embodiment, the waterproof housing 11 is made of aluminum and has heat dissipating teeth thereon to facilitate rapid heat dissipation.
According to the utility model discloses, waterproof housing 11 arranges in outdoors, can give off the heat that produces in the operation process of outdoor switch power supply unit 1 naturally to outdoor air, need not to occupy basic station air conditioner refrigeration resource, can not increase basic station air conditioner consumption, has solved traditional embedded switching power supply and has caused the problem of basic station air conditioner load and consumption increase because of the work heat dissipation.
Inside the waterproof housing 11, an input filter subunit 12, an APFC voltage boost subunit 13, and a DCDC isolated power supply subunit 14 are provided, as shown in fig. 2.
The input filter subunit 12 can be connected to AC220V/380V or DC 250V-DC 400V, preferably to a municipal power supply, more preferably supplied by a separate utility.
The input filter subunit 12 has an input slow start circuit and two stages of EMC filter circuits, which satisfy ac and dc dual input, as shown in fig. 3, and further, the input filter subunit 12 also has a discharge resistor, so as to improve the safety of the device.
The APFC voltage boost subunit 13 is a unit having the functions of reducing line loss and stabilizing voltage, and is connected to the input filter subunit 12, and as shown in fig. 4, the circuit of the APFC voltage boost subunit 13 preferably uses an MOSFET as a main power transistor, a SiC diode as a boost diode, and a low conduction voltage drop rectifier diode for follow current, so as to implement power factor correction and preceding-stage voltage stabilization.
Because of reasons such as transform and safety based on voltage class, need to have electrical isolation between the input of power and the output the utility model discloses in, have DCDC and keep apart power subunit 14 and APFC and step up subunit 13 and link to each other to realize above-mentioned function.
Further, the DCDC isolated power supply subunit 14 adopts a half-bridge scheme, performs conversion in a double-transformer mode, adopts two MOS transistors as an upper bridge arm and a lower bridge arm, and is connected in series with a resonant inductor, and performs synchronous rectification through the MOS transistors at the rear stage, so as to realize efficient isolated conversion of the power supply, and the circuit thereof is shown in fig. 5.
Because 5G equipment consumption is big, traditional switching power supply float voltage DC53.5V, the transmission cable loss is big, and remote transmission needs to add thick cable line footpath, causes equipment cost to increase the utility model discloses in, DCDC keeps apart power subunit 14's output is high voltage, high voltage is DC54V ~ DC60V, preferably DC56.4V voltage to solve the transmission loss problem.
The dc unidirectional conducting unit 2 has a housing 21, and the housing 21 has a waterproof structure, preferably integrally die-cast, on which a waterproof terminal is mounted.
The shell 21 is provided with a one-way input end 201 and a one-way output end 202, the one-way input end 201 and the one-way output end 202 are connected through two cables to communicate the positive and negative poles of the one-way input end 201 and the one-way output end 202, the DCDC isolation power supply subunit 14 is connected with the one-way output end 202 of the direct current one-way conduction unit 2, and further, the one-way output end 202 is connected with 5G communication equipment to supply power to the 5G communication equipment.
The one-way input end 201 of the direct current one-way conduction unit 2 is connected with the direct current output of the original switch power supply system of the base station, so that after municipal power supply is abnormal, 5G communication equipment is powered through a storage battery pack in the original switch power supply system of the base station.
Because the original storage battery pack voltage of the base station is DC53.5V and is lower than the output voltage of the DCDC isolation power supply subunit 14, the DCDC isolation power supply subunit 14 may supply power to the load of the original switching power supply system of the base station, and to solve this problem, a unidirectional conducting diode device 22 is further disposed in the casing 21 of the unidirectional conducting unit 2, as shown in fig. 6, the unidirectional conducting diode device 22 is located on the cable connecting the negative poles of the unidirectional input terminal 201 and the unidirectional output terminal 202, so that current can only flow from the unidirectional input terminal 201 of the dc unidirectional conducting unit 2 to the unidirectional output terminal 202.
Preferably, the unidirectional conducting diode device 22 is a low VF (forward voltage drop), high Io (on current) schottky type diode, and more preferably, a heat sink meeting the peak current capability 300A is further mounted on the unidirectional conducting diode device 22 to dissipate heat.
In a preferred embodiment, a bypass switch 22 is further disposed in the housing 21, the bypass switch 23 is connected in parallel with the unidirectional conducting diode device 22, when the mains supply has a power failure, the original switching power supply system of the base station outputs to the 5G communication device through a switch bypass, so as to reduce the voltage drop and the loss of the diode, and in actual use, the bypass switch 23 can be turned on or turned off by judging the current flowing direction.
The utility model discloses in, bypass switch 23 can be MOS pipe switch, silicon controlled switch, hand switch, relay switch or contactor switch, and the direct current contactor who is preferred high reliability is as bypass switch.
The present invention has been described above in connection with preferred embodiments, which are merely exemplary and illustrative. On this basis, can be right the utility model discloses carry out multiple replacement and improvement, these all fall into the utility model discloses a protection scope.
Claims (10)
1. A5G equipment power supply system comprises an outdoor switch power supply unit (1) and a direct current one-way conduction unit (2),
the outdoor switch power supply unit (1) is positioned outside the base station and is provided with a waterproof shell (11), an input filter subunit (12), an APFC boosting subunit (13) and a DCDC isolation power supply subunit (14) which are sequentially connected are arranged inside the waterproof shell (11),
the input filtering subunit (12) is provided with an input slow starting circuit and two stages of EMC filtering circuits,
the APFC voltage booster subunit (13) is a unit with the functions of reducing line loss and stabilizing voltage,
the DCDC isolated power supply subunit (14) adopts a half-bridge scheme and a double-transformer mode for conversion,
the direct-current unidirectional conduction unit (2) isolates the outdoor switch power supply unit (1) from the original switch power supply system of the base station.
2. The 5G equipment power supply system according to claim 1, wherein the DCDC isolated power supply subunit (14) adopts two MOS tubes as an upper bridge arm and a lower bridge arm, is connected with a resonant inductor in series, and is synchronously rectified through the MOS tubes at the later stage.
3. The 5G device power supply system according to claim 1,
the input filter subunit (12) also has a discharge resistor.
4. The 5G device power supply system according to claim 1,
the output end of the DCDC isolation power supply subunit (14) is high voltage, and the high voltage is DC 54V-DC 60V.
5. The 5G equipment power supply system according to claim 1, wherein the DC unidirectional conduction unit (2) has a housing (21), a unidirectional input end (201) and a unidirectional output end (202) are arranged on the housing (21), the DCDC isolated power supply subunit (14) is connected with the unidirectional output end (202) of the DC unidirectional conduction unit (2), the unidirectional output end (202) is connected with 5G communication equipment, and the unidirectional input end (201) of the DC unidirectional conduction unit (2) is connected with the DC output of the original switch power supply system of the base station.
6. The 5G device power supply system according to claim 1, wherein a unidirectional diode device (22) is further arranged in the housing (21) of the unidirectional current conducting unit (2) so that current can only flow from the unidirectional input end (201) to the unidirectional output end (202) of the unidirectional direct current conducting unit (2).
7. The 5G device power supply system according to claim 6, wherein the unidirectional conducting diode device (22) is a low VF, high Io Schottky type diode.
8. The 5G device power supply system according to claim 6, wherein a heat sink meeting a peak current capability of 300A is further mounted on the unidirectional conducting diode device (22) to dissipate heat therefrom.
9. 5G device supply system according to claim 5, characterized in that a bypass switch (23) is further arranged in the housing (21), the bypass switch (23) being connected in parallel with the unidirectional conducting diode device (22).
10. The 5G device power supply system according to claim 9, wherein the bypass switch (23) is a high reliability dc contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020306919.4U CN211508913U (en) | 2020-03-12 | 2020-03-12 | 5G equipment power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020306919.4U CN211508913U (en) | 2020-03-12 | 2020-03-12 | 5G equipment power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211508913U true CN211508913U (en) | 2020-09-15 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020306919.4U Active CN211508913U (en) | 2020-03-12 | 2020-03-12 | 5G equipment power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211508913U (en) |
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2020
- 2020-03-12 CN CN202020306919.4U patent/CN211508913U/en active Active
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