CN203553917U - Two-stage power supply protection and distribution device - Google Patents
Two-stage power supply protection and distribution device Download PDFInfo
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- CN203553917U CN203553917U CN201320503220.7U CN201320503220U CN203553917U CN 203553917 U CN203553917 U CN 203553917U CN 201320503220 U CN201320503220 U CN 201320503220U CN 203553917 U CN203553917 U CN 203553917U
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- power supply
- decouplers
- stage power
- power
- distributor
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Abstract
The utility model is applicable to the technical field of lightning protection, and provides a two-stage power supply protection and distribution device. The two-stage power supply protection and distribution device comprises a front-stage power supply surge protector, a plurality of decouplers and a plurality of rear-stage power supply surge protectors, wherein the front-stage power supply surge protector is connected with the input ends of the plurality of decouplers simultaneously; the output ends of the plurality of decouplers are connected with the plurality of rear-stage power supply surge protectors in one-to-one correspondence, for providing power for electric equipment; each decoupler comprises a common-mode inductor, the common-mode inductor is composed of a plurality of coils with opposite winding directions and the same number of turns, the plurality of coils are wound on the same magnetic ring, for counteracting inductance in an industrial frequency current loop and reducing impedance in the industrial frequency loop. The two-stage power supply protection and distribution device has the functions of allowing the passage of a high industrial frequency current and distributing power; and moreover, a current flowing through the decouplers is low and free from causing energy waste.
Description
Technical field
The utility model belongs to shocking preventing technology field, relates in particular to a kind of power supply and distributor of secondary.
Background technology
The application of power supply class Surge Protector is very extensive, the general scheme that adopts multistage earial drainage pressure limiting of existing technology.This scheme generally adopts wire as decoupling or adopts inductance coil as decoupling; because the impedance of decoupling under surge current impacts is lower; and require rear class Surge Protector will there is larger discharge capability, thereby can not effectively control residual voltage.Occurred in the market a kind of compared with the reactor decoupling of big inductance quantity, and a kind of decoupling that adopts band pass filter.For these two kinds of decoupler schemes, owing to there being larger power frequency impedance, on decoupler, can produce larger pressure drop, greatly affected the operating efficiency of power-supply system.Due to the larger inductance value of having connected, the power factor of power-supply system is reduced in addition, therefore the electric current of power-supply system is larger while normally working, the loss on power transmission line increases, and seriously wastes energy, and is not also inconsistent with the theory of energy-conserving and environment-protective simultaneously.
To sum up four kinds of decouplings are connected in major loop, in the situation that needs are by larger power current, cannot realize.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of power supply and distributor of secondary, and being intended to solve existing power supply class Surge Protector cannot be by the problem of larger power current.
The utility model is achieved in that a kind of power supply and distributor of secondary, comprises prime power source surge protector, some decouplers and some rear class power source surge protectors; Described prime power source surge protector is connected with the input of some decouplers simultaneously; The output of described some decouplers is corresponding connected one by one with described some rear class power source surge protectors, for power consumption equipment provides power supply; Described decoupler comprises common mode inductance, and by several coiling opposite directions, the identical coil of the number of turns forms described common mode inductance, and described several coil windings are on same magnet ring, for offsetting the inductance in power current loop and reducing the impedance in power frequency loop.
Further, described decoupler also comprises differential mode inductance; Described differential mode inductance is for the cooperation between the Surge Protector of prime, rear class and differential mode protection.
Further, described differential mode inductance by several coiling directions the identical and number of turns also identical coil form, described several coil windings are on same magnet ring.
Further, described power supply and distributor also comprise bus-bar, prime power source surge protector described in the input termination of described bus-bar, and output connects described some decouplers simultaneously.
Compared with prior art, beneficial effect is the utility model: described power supply and distributor can protect device power supply (DPS) port to avoid the situation that Lightning Over-voltage, switching overvoltage and device interior overvoltage are damaged; Not only have and can also there is the function of power distribution by the function of larger power current, and it is less to flow through the electric current of decoupler, can not cause energy waste.
Accompanying drawing explanation
Fig. 1 is the power supply that provides of the utility model and the connection diagram of distributor.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The power supply of secondary described in the utility model and distributor can protect device power supply (DPS) port to avoid Lightning Over-voltage, switching overvoltage and device interior overvoltage; Not only having can be by the function of larger power current, and it also has the function of power distribution.
As shown in Figure 1, a kind of power supply of secondary and distributor, mainly consist of three parts, is respectively prime power source surge protector 100, some decouplers 300 and some rear class power source surge protectors 400; Described prime power source surge protector 100 is connected with the input of some decouplers 300 simultaneously; The output of described some decouplers 300 is corresponding connected one by one with described some rear class power source surge protectors 400, for power consumption equipment provides power supply.Described some decouplers 300 are connected on the branch road of power distribution, can make by the electric current of decoupler 300 so less.Described decoupler 300 comprises common mode inductance 302, by several coiling opposite directions, the identical coil of the number of turns forms described common mode inductance 302, described several coil windings are on same magnet ring, for offsetting the inductance in power current loop and reducing the impedance in power frequency loop.For electric power loop, in described decoupler 300, adopted described common mode inductance 302, inductance is just in time cancelled out each other, and can make power frequency impedance reduce.
Described decoupler 300 also comprises differential mode inductance 301.Described decoupler 300 also can not comprise differential mode inductance 301 and only comprise some common mode inductances 302.Described differential mode inductance 301 is for the cooperation between the Surge Protector of prime, rear class and differential mode protection.
Described differential mode inductance 301 by some groups of coiling directions the identical and number of turns also identical coil form, described coil winding is on same magnet ring.
Combine with the various embodiments described above; described power supply also comprises for being connected the bus-bar 200 of major loop and branch road with distributor; prime power source surge protector 100 described in the input termination of described bus-bar 200, the output described some decouplers 300 that are connected in parallel.
The in the situation that of power frequency: electric current distributes by bus-bar 200 from major loop, the decoupler 300 that flows through branch road provides power supply for power consumption equipment.The inductance value of common mode inductance 302 is cancelled out each other in power current loop, and the inductance value of differential mode inductance 301 is less, several without impact on current supply circuit.
In the situation that having surge current: when surge current in major loop side by prime power source surge protector 100 by most of energy the earth of releasing; because the reactance of common mode inductance 302 in the situation that surge current impacts is very big; and the reactance of device power supply (DPS) port is less; most of residual voltage is carried on decoupler 300, thereby has effectively limited the overvoltage of protected device power supply (DPS) port.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (4)
1. the power supply of secondary and a distributor, is characterized in that, comprises prime power source surge protector, some decouplers and some rear class power source surge protectors; Described prime power source surge protector is connected with the input of some decouplers simultaneously; The output of described some decouplers is corresponding connected one by one with described some rear class power source surge protectors, for power consumption equipment provides power supply; Described decoupler comprises common mode inductance, and by several coiling opposite directions, the identical coil of the number of turns forms described common mode inductance, and described several coil windings are on same magnet ring, for offsetting the inductance in power current loop and reducing the impedance in power frequency loop.
2. power supply according to claim 1 and distributor, is characterized in that, described decoupler also comprises differential mode inductance; Described differential mode inductance is for the cooperation between the Surge Protector of prime, rear class and differential mode protection.
3. power supply according to claim 2 and distributor, is characterized in that, described differential mode inductance by several coiling directions the identical and number of turns also identical coil form, described several coil windings are on same magnet ring.
4. power supply according to claim 1 and distributor, is characterized in that, described power supply and distributor also comprise bus-bar, prime power source surge protector described in the input termination of described bus-bar, and output connects described some decouplers simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320503220.7U CN203553917U (en) | 2013-08-16 | 2013-08-16 | Two-stage power supply protection and distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320503220.7U CN203553917U (en) | 2013-08-16 | 2013-08-16 | Two-stage power supply protection and distribution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203553917U true CN203553917U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320503220.7U Expired - Fee Related CN203553917U (en) | 2013-08-16 | 2013-08-16 | Two-stage power supply protection and distribution device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203553917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107624217A (en) * | 2015-04-07 | 2018-01-23 | 三菱电机株式会社 | Power inverter |
-
2013
- 2013-08-16 CN CN201320503220.7U patent/CN203553917U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107624217A (en) * | 2015-04-07 | 2018-01-23 | 三菱电机株式会社 | Power inverter |
| CN107624217B (en) * | 2015-04-07 | 2019-12-24 | 三菱电机株式会社 | Power conversion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20200816 |
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| CF01 | Termination of patent right due to non-payment of annual fee |