CN202906431U - Power supply equipment - Google Patents
Power supply equipment Download PDFInfo
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- CN202906431U CN202906431U CN201220489914.5U CN201220489914U CN202906431U CN 202906431 U CN202906431 U CN 202906431U CN 201220489914 U CN201220489914 U CN 201220489914U CN 202906431 U CN202906431 U CN 202906431U
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Abstract
An embodiment of the utility model discloses power supply equipment, relates to electronic technology field, and a problem of circuit instant overlarge current caused by circuit abnormity is solved. The power supply equipment comprises: a main power supply module used for providing power supply to a load of a first line terminal; a first current detection module positioned on the first line between the load and the main power supply module, and the first current detection module is used for detecting current condition of the first line; a first switch module positioned on the first line between the first current detection module and the load, and the first switch module is used for connecting or disconnecting the first line; a control module connected with the first switch module and the first current detection module, and the control module is used for receiving current overload information emitted by the first current detection module and disconnecting the first line through the first switch module, thereby closing power supply provided by the main power supply module to the load of the first line terminal.
Description
Technical field
The utility model relates to electronic technology field, relates in particular to a kind of power supply unit.
Background technology
Arrive distribution point (Fiber To The Distribution Point at optical fiber, abbreviation FTTdp) in the network environment, all be need to be from power supply unit (the PowerSupply Equipment of user's family aspect power supply, be called for short PSE) power supply to optical fiber to distribution point (FTTdp), tend to occur the situation of line short circuit in the sort circuit environment, wherein take the transmission medium twisted-pair feeder as example, twisted-pair feeder mismatch line in distribution causes line short circuit, in case line short circuit will cause the power supply unit supply current overload of user's family, usually adopting aspect this line short circuit of processing: overcurrent is had the hiccups and the locked method of overcurrent.
Overcurrent is had the hiccups and is referred in the time of circuit abnormality, large electric current can appear in the circuit, power supply unit in the user family (PSE) detects large electric current and can export by the autoshutdown power supply, Deng again opening power output after a period of time, if circuit is fault still, again detecting overcurrent closes again, so repeatedly until after the fault recovery, electric current output is normal, will cause like this immediate current too large, and constantly start the shut-off circuit switch, cause a large amount of energy wastes and might cause circuit malfunction; Overcurrent is locked to be referred in the time of circuit abnormality, large electric current can appear on the circuit, power supply unit in the user family (PSE) detects large electric current and can the output of autoshutdown power supply no longer open, unless again plugging behind the PSE again, power supply just can recover, so need artificial the participation, will add thus the maintenance cost of large equipment and can't in time fix a breakdown; The solution that power supply unit of the prior art can not be good in a word excessive problem of circuit immediate current in the circuit abnormality situation.
The utility model content
Embodiment of the present utility model provides a kind of power supply unit, is conducive to the excessive problem of circuit immediate current that good solution circuit abnormality causes.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
First aspect provides a kind of power supply unit, comprising:
Main supply electricity module is used to the load of the first line terminal that supply of electric power is provided;
The first current detection module is on described the first circuit between described load and the described main supply electricity module, for detection of the current situation in described the first circuit;
The first switch module on described the first circuit between described the first current detection module and the described load, is used for conducting or turn-offs described the first circuit;
Control module, with described the first switch module be connected the first current detection module and be connected, be used for when receiving the current overload message of described the first current detection module transmission, turn-off described the first circuit by described the first switch module, thereby close the supply of electric power that described main supply electricity module provides for described load.
In the first mode in the cards, specifically comprise in conjunction with first aspect:
From low-voltage low current supply module, link to each other with described load by the second circuit, be used to described load that the supply of electric power of the voltage and current of minimum threshold is provided;
The second switch module on described described the second circuit between low-voltage low current supply module and described load, is used for conducting or turn-offs described the second circuit;
Described control module also is connected with described second switch module, also be used for when receiving the current overload message of described the first current detection module transmission, control described the second circuit of described second switch module conducting, describedly provide supply of electric power from low-voltage low current module for described load thereby switch to.
In the second mode in the cards, in conjunction with the first mode in the cards, described power supply unit also comprises:
The second current detection module is on described load and described described the second circuit between low-voltage low current supply module, for detection of the current situation in described the second circuit;
Described control module also is connected with described the second current detection module;
When described the second current detection module detects described the second line current and drops to default threshold value, send current overload disappearance message to described control module, so that described control module is controlled described the second circuit of described second switch module shuts down, control described the first circuit of described the first switch module conducting, provide supply of electric power thereby switch to described main supply electricity module for described load.
In the third mode in the cards, in conjunction with first aspect, described power supply unit also comprises:
The step-down supply module, is connected with described main supply electricity module and links to each other with described load by tertiary circuit, be depressurized to after the minimum threshold voltage and current standard of load the supply of electric power as described load for the electric power that the electric module of described main supply is offered described load;
The 3rd switch module on the described tertiary circuit between described step-down supply module and the described load, is used for conducting or turn-offs described tertiary circuit;
Described control module also is connected with described the 3rd switch module, also be used for when receiving the current overload message of described the first current detection module transmission, control the described tertiary circuit of described the 3rd switch module conducting, provide supply of electric power thereby switch to described step-down supply module for described load.
In the 4th kind of mode in the cards, in conjunction with the third mode in the cards, described power supply unit also comprises:
The 3rd current detection module is on the described tertiary circuit between described load and the described step-down supply module, for detection of the current situation in the described tertiary circuit;
Described control module also is connected with described the 3rd current detection module;
When described the 3rd current detection module detects described tertiary circuit electric current and drops to default threshold value, send the message of current overload disappearance to described control module, so that described control module is controlled described the 3rd switch module and is turn-offed described tertiary circuit, control described the first circuit of described the first switch module conducting, provide supply of electric power thereby switch to described main supply electricity module for described load.
The power supply unit that embodiment of the present utility model provides, can close main supply electricity module according to line conditions by control module powers to load to the power supply of load or the supply module that switches to other, and then solved the excessive problem of circuit immediate current under the circuit abnormal conditions, avoid energy waste and circuit over current fault to get rid of untimely problem, reduced the maintenance of equipment cost.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
A kind of power supply unit structural representation that Fig. 1 provides for embodiment of the present utility model;
The another kind of power supply unit structural representation that Fig. 2 provides for embodiment of the present utility model;
Another power supply unit structural representation that Fig. 3 provides for embodiment of the present utility model;
A kind of power supply unit structural representation that Fig. 4 provides for another embodiment of the present utility model;
The another kind of power supply unit structural representation that Fig. 5 provides for another embodiment of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Arrive distribution point (Fiber To The Distribution Point at optical fiber, abbreviation FTTdp) in the network environment, need to be by the power supply unit that is positioned at user's family (Power SupplyEquipment, be called for short PSE) power supply to optical fiber to distribution point (FTTdp), but the situation that has the circuit overcurrent in power supply process occurs, for fear of this situation, the utility model provides a kind of power supply unit to solve the technical problem that the circuit overcurrent brings.
With reference to shown in Figure 1, a kind of power supply unit that embodiment of the present utility model provides comprises: main supply electricity module 1, the first current detection module, 2, the first switch modules 3 and control module 4, wherein,
Main supply electricity module 1 is used to the load of the first line terminal that supply of electric power is provided;
The first current detection module 2 is on the first circuit between load and the main supply electricity module 1, for detection of the current situation in the first circuit;
The first switch module 3 on the first circuit between the first current detection module 2 and the load, is used for conducting or turn-offs the first circuit;
Here the utility model just limits the line current overload, a kind of to cause the reason of line circuit overload be line short circuit and only show among the figure, therefore be take line short circuit as example in the present embodiment, certainly other can cause the factor of line current overload also should take into account, following each embodiment of the present utility model is and adopts line short circuit is that example describes, and below relates to relevant place and repeats no more.
The electric supply installation power supply unit that embodiment of the present utility model provides, by the detection of the first current detection module to electric current in the first circuit, when the circuit current overload, cut off the supply of electric power that main supply electricity module provides the first circuit terminate load by control module, and then solved the excessive problem of circuit immediate current under the circuit abnormal conditions.
Further, optional, with reference to shown in Figure 2, the power supply unit that embodiment of the present utility model provides also comprises: from low-voltage low current supply module 5 and second switch module 6, wherein,
From low-voltage low current supply module 5, link to each other with load by the second circuit, be used to load that the supply of electric power of the voltage and current of minimum threshold is provided;
The electric current of the minimum threshold here can be different default according to the standard of actual FTTdp side power receiving equipment minimum threshold electric current, for example, when the electric current of FTTdp side power receiving equipment is ampere (unit: A) during rank, the minimum threshold electric current that provides from low-voltage low current supply module can be ampere (unit: A) level other, also can be a milliampere (unit: mA) other minimum threshold electric current of level; When the electric current of FTTdp side power receiving equipment is milliampere that (unit: mA) during rank, the minimum threshold electric current that provides from low-voltage low current supply module also can be a milliampere (unit: mA) other minimum threshold electric current of level.
The electric supply installation power supply unit that embodiment of the present utility model provides, can be in the unusual situation of the first circuit by control module the control of control second switch module be switched to from low-voltage low current supply module and provide corresponding supply of electric power to the load of line terminal, and then solved the excessive problem of circuit immediate current under the circuit abnormal conditions, avoided energy waste.
Further, with reference to shown in Figure 3, the electric supply installation power supply unit that embodiment of the present utility model provides also comprises: the second current detection module 7, wherein,
The second current detection module 7 is in load and from the second circuit between the low-voltage low current supply module 5, for detection of the current situation in the second circuit;
When the second current detection module 7 detects the second line current and drops to default threshold value, send current overload disappearance message to control module 4, so that control module 4 control second switch modules 6 are turn-offed the second circuit, control the first switch module 3 conductings the first circuit, provide supply of electric power thereby switch to main supply electricity module 1 for load.
The power supply unit that embodiment of the present utility model provides, by the detection of the second current detection module to electric current in the circuit, after current overload disappears, switch to main supply electricity module by control module and provide corresponding supply of electric power to the line terminal load, and then solved the excessive problem of circuit immediate current under the circuit abnormal conditions, avoid energy waste and circuit over current fault to get rid of untimely problem, reduced the maintenance of equipment cost.
Optionally, with reference to shown in Figure 4, the power supply unit that embodiment of the present utility model provides also comprises: step-down supply module 8 and the 3rd switch module 9, wherein,
Step-down supply module 8 is connected with main supply electricity module 1 and links to each other with load by tertiary circuit, for after the minimum threshold voltage and current standard that will state electric power that the electric module 1 of main supply offers load and be depressurized to load as the supply of electric power of load;
Certainly step-down supply module 8 and main supply electricity module 1 is connected and refers to step-down supply module 8 and obtain supply of electric power from the electric module 1 of main supply here; as long as therefore be connected to any position on the circuit between the first switch module 3 and the main supply electricity module 1; annexation from figure sees that step-down supply module 8 is connected to after the first current detection module 2 and on the circuit between the first switch module 3; certainly be connected on the circuit between main supply electricity module 1 and the first current detection module 2 and also be fine; not shown, but should be in embodiment protection range of the present utility model.
The electric current of the minimum threshold here can be different default according to the standard of actual FTTdp side power receiving equipment minimum threshold electric current, for example, when the electric current of FTTdp side power receiving equipment is ampere (unit: A) during rank, the minimum threshold electric current that provides from low-voltage low current supply module can be ampere (unit: A) level other, also can be a milliampere (unit: mA) other minimum threshold electric current of level; When the electric current of FTTdp side power receiving equipment is milliampere that (unit: mA) during rank, the minimum threshold electric current that provides from low-voltage low current supply module also can be a milliampere (unit: mA) other minimum threshold electric current of level.
The 3rd switch module 9 on the tertiary circuit between step-down supply module 8 and the load, is used for conducting or turn-offs described tertiary circuit;
The power supply unit that embodiment of the present utility model provides, can be in the unusual situation of the first circuit by control module the control of controlling the 3rd switch module be switched to the step-down supply module and provide corresponding supply of electric power to the load of line terminal, and then solved the excessive problem of circuit immediate current under the circuit abnormal conditions, avoided energy waste.
Further, optional, with reference to shown in Figure 5, the power supply unit that embodiment of the present utility model provides also comprises: the 3rd current detection module 10, wherein,
The 3rd current detection module 10 is on the tertiary circuit between load and the step-down supply module 8, for detection of the current situation in the tertiary circuit;
When the 3rd current detection module 10 detects the tertiary circuit electric current and drops to default threshold value, send the message of current overload disappearance to control module 4, so that control module 4 controls the 3rd switch module 9 turn-offs tertiary circuit, control the first switch module 3 conductings the first circuit, provide supply of electric power thereby switch to main supply electricity module 1 for load.
The power supply unit that embodiment of the present utility model provides, by the detection of the 3rd current detection module to electric current in the circuit, after current overload disappears, switch to main supply electricity module by control module and provide corresponding supply of electric power to the line terminal load, and then solved the excessive problem of circuit immediate current under the circuit abnormal conditions, avoid energy waste and circuit over current fault to get rid of untimely problem, reduced the maintenance of equipment cost.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
The above; it only is embodiment of the present utility model; but protection range of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of described claim.
Claims (5)
1. a power supply unit is characterized in that, comprising:
Main supply electricity module is used to the load of the first line terminal that supply of electric power is provided;
The first current detection module is on described the first circuit between described load and the described main supply electricity module, for detection of the current situation in described the first circuit;
The first switch module on described the first circuit between described the first current detection module and the described load, is used for conducting or turn-offs described the first circuit;
Control module, with described the first switch module be connected the first current detection module and be connected, be used for when receiving the current overload message of described the first current detection module transmission, turn-off described the first circuit by described the first switch module, thereby close the supply of electric power that described main supply electricity module provides for described load.
2. power supply unit according to claim 1 is characterized in that, described power supply unit also comprises:
From low-voltage low current supply module, link to each other with described load by the second circuit, be used to described load that the supply of electric power of the voltage and current of minimum threshold is provided;
The second switch module on described described the second circuit between low-voltage low current supply module and described load, is used for conducting or turn-offs described the second circuit;
Described control module also is connected with described second switch module, also be used for when receiving the current overload message of described the first current detection module transmission, control described the second circuit of described second switch module conducting, describedly provide supply of electric power from low-voltage low current module for described load thereby switch to.
3. power supply unit according to claim 2 is characterized in that, also comprises:
The second current detection module is on described load and described described the second circuit between low-voltage low current supply module, for detection of the current situation in described the second circuit;
Described control module also is connected with described the second current detection module;
When described the second current detection module detects described the second line current and drops to default threshold value, send current overload disappearance message to described control module, so that described control module is controlled described the second circuit of described second switch module shuts down, control described the first circuit of described the first switch module conducting, provide supply of electric power thereby switch to described main supply electricity module for described load.
4. power supply unit according to claim 1 is characterized in that, described power supply unit also comprises:
The step-down supply module, is connected with described main supply electricity module and links to each other with described load by tertiary circuit, be depressurized to after the minimum threshold voltage and current standard of load the supply of electric power as described load for the electric power that the electric module of described main supply is offered described load;
The 3rd switch module on the described tertiary circuit between described step-down supply module and the described load, is used for conducting or turn-offs described tertiary circuit;
Described control module also is connected with described the 3rd switch module, also be used for when receiving the current overload message of described the first current detection module transmission, control the described tertiary circuit of described the 3rd switch module conducting, provide supply of electric power thereby switch to described step-down supply module for described load.
5. power supply unit according to claim 4 is characterized in that, also comprises:
The 3rd current detection module is on the described tertiary circuit between described load and the described step-down supply module, for detection of the current situation in the described tertiary circuit;
Described control module also is connected with described the 3rd current detection module;
When described the 3rd current detection module detects described tertiary circuit electric current and drops to default threshold value, send the message of current overload disappearance to described control module, so that described control module is controlled described the 3rd switch module and is turn-offed described tertiary circuit, control described the first circuit of described the first switch module conducting, provide supply of electric power thereby switch to described main supply electricity module for described load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220489914.5U CN202906431U (en) | 2012-09-24 | 2012-09-24 | Power supply equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220489914.5U CN202906431U (en) | 2012-09-24 | 2012-09-24 | Power supply equipment |
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| CN202906431U true CN202906431U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220489914.5U Expired - Lifetime CN202906431U (en) | 2012-09-24 | 2012-09-24 | Power supply equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104041001A (en) * | 2014-04-11 | 2014-09-10 | 华为技术有限公司 | Digital user line local end device, terminal device and reverse power supply system |
| CN104617653A (en) * | 2015-02-15 | 2015-05-13 | 华为技术有限公司 | Selective protection circuit and method as well as power supplying system |
| CN105991295A (en) * | 2015-02-12 | 2016-10-05 | 中兴通讯股份有限公司 | Remote feeding supply circuit of U interface |
| CN110474402A (en) * | 2019-09-18 | 2019-11-19 | 展讯通信（深圳）有限公司 | Charge current foldback circuit and method |
| CN111290306A (en) * | 2018-12-07 | 2020-06-16 | 弥芥科技发展(上海)有限公司 | Electromechanical device monitoring system based on Internet of things |
-
2012
- 2012-09-24 CN CN201220489914.5U patent/CN202906431U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104041001A (en) * | 2014-04-11 | 2014-09-10 | 华为技术有限公司 | Digital user line local end device, terminal device and reverse power supply system |
| CN104041001B (en) * | 2014-04-11 | 2016-03-09 | 华为技术有限公司 | A kind of numeral subscriber line local side device, terminal installation and reverse electric power system |
| CN105991295A (en) * | 2015-02-12 | 2016-10-05 | 中兴通讯股份有限公司 | Remote feeding supply circuit of U interface |
| CN105991295B (en) * | 2015-02-12 | 2020-03-13 | 中兴通讯股份有限公司 | U interface remote supply feed circuit |
| CN104617653A (en) * | 2015-02-15 | 2015-05-13 | 华为技术有限公司 | Selective protection circuit and method as well as power supplying system |
| US10177561B2 (en) | 2015-02-15 | 2019-01-08 | Huawei Technologies Co., Ltd. | Selective protection circuit and method, and power supply system |
| CN111290306A (en) * | 2018-12-07 | 2020-06-16 | 弥芥科技发展(上海)有限公司 | Electromechanical device monitoring system based on Internet of things |
| CN110474402A (en) * | 2019-09-18 | 2019-11-19 | 展讯通信（深圳）有限公司 | Charge current foldback circuit and method |
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