CN201515254U - Direct-current power supply branch cabinet and DC supply system - Google Patents
Direct-current power supply branch cabinet and DC supply system Download PDFInfo
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- CN201515254U CN201515254U CN2009202181097U CN200920218109U CN201515254U CN 201515254 U CN201515254 U CN 201515254U CN 2009202181097 U CN2009202181097 U CN 2009202181097U CN 200920218109 U CN200920218109 U CN 200920218109U CN 201515254 U CN201515254 U CN 201515254U
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- power supply
- branch
- emergency service
- main electricity
- fuse
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Abstract
The utility model discloses a direct-current power supply branch cabinet, which comprises a main power supply source branch circuit and a branching row, wherein the one end of the main power supply source branch circuit is connected with the branching row, the other end thereof is connected with the main power supply source, a branch fuse wire is connected to every branch of the branching row, the branch fuse wires are connected to a communication equipment access contact; the utility model comprises an emergency power supply source branch circuit as well, wherein one end of the emergency power supply source branch circuit is connected with the branching row, and the other end is connected with the emergency power supply source. The utility model discloses a direct-current power supply system accordingly. The utility model utilizes the emergency power source to realize stable switching of the power supply source when the main power supply source is in the need of repairing due to fault, or requires to be maintained periodically, thereby solving successfully the problem of the current power supply technology that incessant power supply for communication equipment can't be ensured, which finally enables the communication system to operate continuously and normally.
Description
Technical field
The utility model relates to the DC power supply technical field, relates in particular to a kind of DC power supply branch's cabinet and DC power-supply system.
Background technology
Along with developing rapidly of social economy's construction, people also increase day by day to the degree of dependence of communication system, and in communication system, communications equipment room is one of its core part, and the ruuning situation of communications equipment room directly influences the operating state of communication system.In order to guarantee the steady operation of communications equipment room, DC power supply branch cabinet has become indispensable electric power distribution device, and it mainly acts on is the distribution of each communication equipment being carried out DC power supply.The internal circuit of existing DC power supply branch cabinet comprises as shown in Figure 1: DC power supply inserts contact 101, shunt 102, main fuse 103, communication equipment and inserts contact 104, divides fuse 105, divides and run in 106.Generally by standard-the 48V DC power supply provides one tunnel or two tunnel total external dc powers inputs, DC power supply shown in Figure 1 branch cabinet provides the input of two-way power supply by DC power supply.The power supply circuits connected mode of existing DC power supply branch cabinet inside is: DC power supply inserts contact 101 and is arranged on the outer surface of DC power supply branch cabinet, be used to connect outside dc power supply, and in DC power supply branch cabinet inside, DC power supply inserts contact 101 and connects shunt 102, shunt 102 is connected to main fuse 103, main fuse 103 is connected to branch and runs in 106, divide the 106 branch fuses 105 that are connected to each branch road that run in, each minute fuse 105 the other end be connected to each communication equipment and insert contact 104.
For the outside-requirement of 48V DC power supply is to guarantee continual power supply input, and guarantees that the voltage of input can be stabilized in the scope of standard.Communication equipment has higher requirement to the stability of DC power supply input, the moment wide fluctuations that voltage can not be arranged, otherwise, the operate as normal of communication equipment will be influenced, thereby communication equipment to the requirement of DC input voitage is: relatively stable, continuous, not sudden change.
In the middle of practical application, the power supply of all communication equipments can not interrupt in the communications equipment room, so dc power supply access in a single day, just can not disconnect again.In a single day yet because still there is the possibility that breaks down in electric power system, and the fault of electric power system occurs, will cause full process and full network communication to hinder, cause probably to produce serious influence large tracts of land, communication paralysis for a long time.Since existing DC power system by existing DC power supply branch cabinet connecting system after, maintenance or maintenance more just can not have a power failure, so the maintenance or the maintenance that can only not have a power failure to DC power supply, such maintenance or maintenance are difficult to reach ideal effect.
The utility model content
The utility model embodiment provides a kind of DC power supply branch cabinet, in order to solve the uninterrupted power supply problem that can't ensure communication equipment when existing electric supply system breaks down.
Corresponding, the utility model embodiment also provides a kind of DC power-supply system.
The DC power supply branch cabinet that the utility model embodiment provides, comprise that main electricity branch road and branch run in, wherein main electricity branch road one end runs in described branch and is connected, the other end is connected with main electricity, this branch runs in and connects one fen fuse in each branch of tap, divides fuse to connect a communication equipment and inserts the contact, and DC power supply branch cabinet also comprises the emergency service power branch, one end of emergency service power branch runs in branch and is connected, and the other end is used for being connected with the emergency service power supply.
The DC power-supply system that the utility model embodiment provides comprises the emergency service power supply of DC power supply branch cabinet and main electricity and startup work when the main electricity cisco unity malfunction; This DC power supply branch cabinet comprises that main electricity branch road, emergency service power branch and branch run in, divide in each branch of the tap of running in and connect one fen fuse, divide fuse to connect a communication equipment and insert the contact, an end of emergency service power branch is connected described branch respectively with an end of main electricity branch road and runs in; Wherein main electricity connects the main electricity branch road, and the emergency service power supply connects the emergency service power branch.
DC power supply branch cabinet and DC power-supply system that the utility model embodiment provides, make and need repairing or main electricity when needing regular the maintenance in the main electricity fault, utilize emergency power supply to realize the steady switching of power supply, improved the weak point of existing equipment, successfully having solved existing power supply technique can't ensure and problem to the uninterrupted power supply of communication equipment make communication system can keep normal operation.
Description of drawings
Fig. 1 is the circuit structure diagram of existing DC power supply branch cabinet;
Fig. 2 is the circuit structure diagram of the DC power supply branch cabinet that provides of the utility model embodiment;
Fig. 3 is the structural representation of the emergency service power supply that provides of the utility model embodiment;
Fig. 4 is the structural representation of the DC power-supply system that provides of the utility model embodiment.
Embodiment
The utility model embodiment provides a kind of DC power supply branch cabinet, so that existing DC power supply branch cabinet is improved, solves the uninterrupted power supply problem that can't ensure communication equipment when existing electric supply system breaks down.And the utility model also provides a kind of DC power-supply system, this electric power system utilizes improved DC power supply branch's cabinet and improved emergency service power supply to realize uninterrupted direct current (DC) power supply to communication equipment, this DC power-supply system has guaranteed in the main electricity fault or the direct current supply when needing regular power-off service is steadily switched, and then has guaranteed the operate as normal of communication system.
The utility model embodiment 1 provides a kind of DC power supply branch cabinet, the its internal circuit structure as shown in Figure 2, comprise: main electricity inserts contact 201, the emergency service power supply inserts contact 202, shunt 203, main fuse 204, emergent branch road fuse 205, divide fuse 206, communication equipment inserts contact 207 and divides and runs in 208.Wherein main electricity access contact 201 and emergency service power supply access contact 202 are separately positioned on the outer surface of DC power supply branch cabinet, main electricity inserts contact 201 and is used to connect outside main electricity, the emergency service power supply inserts contact 201 and is used to connect outside emergency service power supply, and in DC power supply branch cabinet inside, after main electricity inserts contact 201 series connection shunts 203, the main fuse 204 of connecting again constitutes the main electricity branch road.The emergency service power supply inserts the emergent branch road fuse 205 of contact 202 series connection, and the two constitutes the emergency service power branch.Emergent branch road fuse 205 is connected respectively to branch with main fuse 204 and runs in 208.Divide the 208 branch fuses 206 that are connected to each branch road that run in, the branch fuse 206 of each branch road is connected to each communication equipment and inserts contact 207, each communication equipment is connected respectively to different communication equipment and inserts on the contact 207 like this, just can realize that DC power supply branch cabinet powers for each communication equipment.With respect to existing DC power supply branch cabinet, the improvements of the DC power supply branch cabinet that the utility model embodiment provides are, on the main electricity branch road, connected an emergency service power branch, and existing DC power supply branch cabinet outside transformed, on the outer surface of DC power supply branch cabinet, increase an emergency service power supply and inserted contact 202.Wherein emergent branch road fuse 205 is a dismountable fuse, in the practical application, by dismounting and the emergent branch road fuse 205 of installation, can realize the access and the dismounting of emergency service power supply.
The utility model embodiment 2 provides a kind of emergency service power supply, its structural representation as shown in Figure 3, this emergency service power supply comprises: civil power access unit 301, rectification circuit unit 302, secondary battery unit 303, voltage-regulating circuit unit 304 and direct current output unit 305, wherein voltage-regulating circuit unit 304 specifically can comprise inverter circuit subelement 3041 and rectification circuit subelement 3042.Wherein civil power access unit 301 is obtained after the alternating current input of civil power, utilizes rectification circuit unit 302 to carry out rectification, the alternating current of civil power 220V is converted to-direct current of 48V, as the routine input of emergency service power supply.And secondary battery unit 303 is as the standby input of this emergency power supply, be used for being in the direct current that can adopt secondary battery unit 303 to store in advance under the situation of power down mode and carry out emergency service at civil power, in the real work, in case civil power is in power down mode, then the input of emergency service power supply can automatically switch to secondary battery unit 303, provide-direct current of 48V by secondary battery unit 303, thereby guarantee to occur in no instance the situation that the outside input of emergency service power supply is interrupted.Voltage-regulating circuit unit 304 comprises inverter circuit subelement 3041 and rectification circuit subelement 3042, the effect of voltage-regulating circuit unit 304 to secondary battery unit 303 or rectification circuit unit 302 provide-the 48V direct current adjusts on a large scale, adjusting range can reach-and 35V is to-75V, mainly is being to adjust near-the 48V in the middle of the practical application.The effect of inverter circuit subelement 3041 is direct currents that 302 pairs of commercial power rectification, rectification circuit unit are obtained or carries out inversion by the direct current that secondary battery unit 303 provides and handle, obtains corresponding alternating current.The effect of rectification circuit subelement 3042 is the alternating current that inverter circuit subelement 3041 obtains to be carried out rectification once more handle, and obtains a direct current output that is applicable to the communication equipment power supply.The reason of why utilizing inverter circuit subelement 3041 and rectification circuit unit 3042 to constitute voltage-regulating circuit unit 304 is, under the prerequisite that secondary battery unit 303 exists, utilize conventional voltage-regulating circuit, can't realize the processing of turning down dc voltage value.Utilize voltage-regulating circuit unit 304 then can realize the on a large scale adjustment two-way to dc voltage value.What voltage-regulating circuit unit 304 obtained is applicable to the direct current of communication equipment power supply, exports by direct current output unit 305 again.In the operation, the output voltage of emergency service power supply need be adjusted to the magnitude of voltage of the current real work of each communication equipment in practice,, guarantee the operate as normal of communication system not produce big voltage fluctuation in the handoff procedure between assurance and the main electricity.The characteristics of the emergency service power supply that the utility model embodiment provides are that voltage output is alternating current-direct current continual (promptly when civil power was in power down mode, the output of emergency power supply can not interrupted), and output voltage values can be regulated on a large scale.
The utility model embodiment 3 provides a kind of DC power-supply system, and the structured flowchart of this system comprises as shown in Figure 4: DC power supply branch cabinet 401, main electricity 402, emergency service power supply 403.Wherein DC power supply branch cabinet 401 is the modified model DC power supply branch cabinets described in the utility model embodiment 1, main electricity 402 is conventional-48V power supply, and emergency service power supply 403 is the emergency service power supplys described in the utility model embodiment 2.In the middle of practical application, when main electricity 402 breaks down, perhaps the voltage of main electricity 402 output changes and when departing from standard value, when perhaps main electricity 402 needs power-off service, can adjust the output voltage values of the output voltage values of emergency service power supply 403 to current main electricity 402, the direct current output unit 307 of emergency service power supply 403 is connected to the emergency service power supply access contact 202 of DC power supply branch cabinet 401, so just power simultaneously by emergency service power supply 403 and main electricity 402, can unload main electricity this moment, and be that the long time is won in maintenance or maintenance.When main electricity 402 through maintenance or safeguard reach perfect condition after, in the time of can the access communications network, adjust the output voltage values of emergency service power supply 403, its output voltage values with main electricity 402 is equated, the voltage difference at main fuse 203 two ends approaches zero, and the main electricity that again main electricity 402 is inserted DC power supply branch cabinet 401 inserts contact 201.Then, remove the emergent branch road fuse 205 of emergency service power supply 403, make emergency service power supply 403 break away from network, system returns to normal power supply state stably.Like this, this DC power-supply system has just guaranteed preferably that the situation of power failure just can not take place DC power supply branch cabinet 401, improves the power supply safety of communication network widely when main electricity 402 breaks down or needs repairing or need safeguard.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (6)
1. DC power supply branch cabinet, comprise that main electricity branch road and branch run in, described main electricity branch road one end runs in described branch and is connected, the other end is connected with main electricity, and described branch runs in and connects one fen fuse in each branch of tap, and described minute fuse connects a communication equipment and insert the contact, it is characterized in that, also comprise the emergency service power branch, an end of described emergency service power branch runs in described branch and is connected, and the other end is used for being connected with the emergency service power supply.
2. DC power supply as claimed in claim 1 branch cabinet, it is characterized in that, described main electricity branch road comprises that the main electricity of series connection inserts contact, shunt and main fuse, and described main electricity inserts on the outer surface that the contact is arranged on described DC power supply branch cabinet.
3. DC power supply as claimed in claim 1 branch cabinet, it is characterized in that, described emergency service power branch comprises the emergent branch road fuse that the emergency service power supply of series connection inserts the contact and can dismantle, and described emergency service power supply inserts on the outer surface that the contact is arranged on described DC power supply branch cabinet.
4. a DC power-supply system comprises DC power supply branch cabinet and main electricity, it is characterized in that, starts the emergency service power supply of work when also being included in described main electricity cisco unity malfunction;
Described DC power supply branch cabinet comprises that main electricity branch road, emergency service power branch and branch run in, described branch runs in and connects one fen fuse in each branch of tap, described minute fuse connects a communication equipment and inserts the contact, and an end of described emergency service power branch is connected described branch respectively with an end of described main electricity branch road and runs in;
Described main electricity connects described main electricity branch road, and described emergency service power supply connects described emergency service power branch.
5. DC power-supply system as claimed in claim 4 is characterized in that, described main electricity branch road comprises that the main electricity of series connection inserts contact, shunt and main fuse;
Described main electricity is connected to described main electricity and inserts the contact.
6. DC power-supply system as claimed in claim 4 is characterized in that, described emergency service power branch comprises the emergent branch road fuse that the emergency service power supply of series connection inserts the contact and can dismantle;
Described emergency service power supply is connected to described emergency service power supply and inserts the contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202181097U CN201515254U (en) | 2009-10-15 | 2009-10-15 | Direct-current power supply branch cabinet and DC supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202181097U CN201515254U (en) | 2009-10-15 | 2009-10-15 | Direct-current power supply branch cabinet and DC supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201515254U true CN201515254U (en) | 2010-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202181097U Expired - Lifetime CN201515254U (en) | 2009-10-15 | 2009-10-15 | Direct-current power supply branch cabinet and DC supply system |
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| Country | Link |
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| CN (1) | CN201515254U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500935A (en) * | 2013-10-13 | 2014-01-08 | 昆山顺康达工业产品设计有限公司 | Direct-current power distribution cabinet |
| CN109975643A (en) * | 2017-12-28 | 2019-07-05 | 沃尔缇夫能源***公司 | Load fuse detection method and equipment |
-
2009
- 2009-10-15 CN CN2009202181097U patent/CN201515254U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500935A (en) * | 2013-10-13 | 2014-01-08 | 昆山顺康达工业产品设计有限公司 | Direct-current power distribution cabinet |
| CN109975643A (en) * | 2017-12-28 | 2019-07-05 | 沃尔缇夫能源***公司 | Load fuse detection method and equipment |
| CN109975643B (en) * | 2017-12-28 | 2021-07-13 | 维谛公司 | Load fuse detection method and device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100623 |