CN2189360Y - Electricity power conversion arrangement - Google Patents
Electricity power conversion arrangement Download PDFInfo
- Publication number
- CN2189360Y CN2189360Y CN 94227018 CN94227018U CN2189360Y CN 2189360 Y CN2189360 Y CN 2189360Y CN 94227018 CN94227018 CN 94227018 CN 94227018 U CN94227018 U CN 94227018U CN 2189360 Y CN2189360 Y CN 2189360Y
- Authority
- CN
- China
- Prior art keywords
- power supply
- utility
- model
- signal amplifier
- remote control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a novel anti-thunder electricity power conversion device, comprising an accumulator, and the both ends of the accumulator are connected with a charger. The utility model is characterized in that the anti-thunder electricity power conversion device is provided with an electronic signal amplifier, and the input end of the electronic signal amplifier is connected with a control signal input end A. The output end of the electronic signal amplifier is connected with a relay J<1>, the normal closed contact points J<1-1>, J<1-2> of the relay J<1> are in series connection in an AC power supply line. The utility model is suitable for the power supply anti-thunder of long distance remote control devices, and the utility model can send out remote control command from a central control room in thunderstorm seasons. The utility model can automatically cut off the AC power supply circuit, the accumulator can continue to supply power, and therefore, the utility model effectively prevent the problem of fuse burning out and hard changing caused by thunder over-voltage.
Description
The utility model relates to power technique fields, and the power supply that is specially adapted to the long-distance remote control device is anti-lightning strike.
The power supply of existing remote control adopts ac-dc dual power supply usually, at ordinary times with the civil power step-down and after rectification is direct current for the remote control use, when mains failure then by storage battery power supply.Because the mains fluctuation amplitude is bigger, too high voltage can damage the electronic component in the remote control, therefore with piezo-resistance and the fuse formation overvoltage protector that matches; so that when civil power surpasses setting; the piezo-resistance resistance reduces, and blows a fuse, and cuts off the Alternating Current Power Supply path.But thunderstorm season in every year, thunder and lightning makes mains supply over-voltage and the fault of burning this fuse frequently takes place, need the professional to safeguard and change this fuse, happen occasionally for changing the thing that a fuse runs tens of kilometers distance, thereby very difficult to the maintenance of remote control, had a strong impact on the use of remote control.For example, wireless power load control systems such as the WDK-100Z type that power supply department adopts now, WJ-100, it is made up of center control machine and hundreds of two-way, the unidirectional remote terminal machines in a distant place.Accurate, in good time for what control, all devices of remote control all is produced in the casing, and by closing and seal up after sole duty installation, the on-the-spot Installation and Debugging of maintainer, anyone can not arrogate to oneself for all the other.After the blown fuse of terminating machine, can only send someone to change by central control room, the maintenance personal who has dislikes trouble and just increases fuse, makes overvoltage protector ineffective, will damage remote control like this.
The purpose of this utility model provides novel lightning protection power supply change-over device and solves above-mentioned the deficiencies in the prior art, significantly reduces remote control burns fuse and remote terminal equipment because of thunderbolt failure rate.
The purpose of this utility model is achieved through the following technical solutions.
Lightning protection power supply change-over device described in the utility model has a storage battery, and storage battery is connected with charger, it is characterized in that having an electronic signal amplifier, and its input is connected with signal input end A, its output and relay J
1Connect relay J
1Normally-closed contact J
1-1, J
1-2Be serially connected in the ac power supply line.
Lightning protection power supply change-over device described in the utility model design preferably is that the electronic signal amplifier is by resistance R
2-4With triode BG
1Constitute the one stage signal amplifier.Through photoelectrical coupler and by resistance R
5With triode BG
2The second signal amplifier that constitutes is electrically connected.
The better design of lightning protection power supply change-over device described in the utility model is that the output of storage battery is serially connected with isolation diode D
5
Adopt the advantage of lightning protection power supply change-over device described in the utility model to be: (1) can send remote control command by central control room at thunderstorm season, automatically cut off ac power circuit by this lightning protection power supply change-over device, and continue to remote control power supply by storage battery, prevented effectively that thunder and lightning from entering remote control by city's electric transmission line and the problem that causes blown fuse to be difficult to change.(2) easy and simple to handle, degree of reliability height can be protected remote control effectively.(3) greatly reduce maintenance personal's labour intensity.
Below in conjunction with accompanying drawing lightning protection power supply change-over device described in the utility model is described in further detail.
Fig. 1 lightning protection power supply change-over device circuit diagram
Fig. 2 lightning protection power supply change-over device appearance assumption diagram
With reference to Fig. 1-2, lightning protection power supply change-over device described in the utility model has storage battery 1, and storage battery is connected with charger 2, and charger 2 can adopt rectifier (diode D
1-4) and current-limiting resistance R
1Constitute, electronic signal amplifier 3 is arranged, can adopt resistance R
2-4With triode BG
1Constitute the one stage signal amplifier, through photoelectrical coupler 4 and by resistance R
5With triode BG
2The second signal amplifier that constitutes is electrically connected and forms electronic signal amplifier 3, and the input of electronic signal amplifier 3 is connected with the control signal output ends A of remote control, its output and relay J
1Connect relay J
1Normally-closed contact J
1-1, J
1-2Be serially connected in the ac power supply line, be serially connected with isolating diode D at the output of storage battery 1
5The operation principle of this lightning protection power supply change-over device is as follows: at thunderstorm season, the remote control machine that central control room is controlled according to local condition by regional burst, specify one to two bidirectional remote control machine as attended computer in each zone, when attended computer will have thunderbolt of living inly, the person on duty is transmitted into central control room by signal immediately, send one or several zone by central control room according to this situation, even the power source conversion control signal of whole remote control machines.Or sending the power source conversion control signal according to local weather forecast by central control room, after remote control received, this signal was amplified by control signal output ends A input electrical signal amplifier 3 and makes relay J
1Action, the normally-closed contact J of relay
1-1, J
1-2Disconnect ac power supply circuit, the mains supply over-voltage that is caused by thunder and lightning can not enter the current supply circuit of remote control, has guaranteed that fuse 5 is not fused, and storage battery 1 provides DC power supply to remote control simultaneously, after control room, center cancellation power source conversion control signal, relay J
1Restore normally-closed contact J
1-1, J
1-2Closure recloses ac power supply circuit, and by 1 charging of 2 pairs of storage batterys of charger.
Claims (3)
1, lightning protection power supply change-over device has storage battery [1], and storage battery is connected with charger [2], it is characterized in that having an electronic signal amplifier [3], and its input is connected with control signal output ends [A], its output and relay [J
1] connect relay [J
1] normally-closed contact [J
1-1, J
1-2] be serially connected in the ac power supply line.
2, lightning protection power supply change-over device according to claim 1 is characterized in that, electronic signal amplifier ［ 3 ］ is by resistance ［ R
2-4And triode ［ BG
1Constitute the one stage signal amplifier, through photoelectrical coupler ［ 4 ］ and by resistance ［ R
5And triode ［ BG
2The second signal amplifier that constitutes is electrically connected.
3, lightning protection power supply change-over device according to claim 1 and 2 is characterized in that the output of storage battery is serially connected with isolating diode ［ D
5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94227018 CN2189360Y (en) | 1994-01-07 | 1994-01-07 | Electricity power conversion arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94227018 CN2189360Y (en) | 1994-01-07 | 1994-01-07 | Electricity power conversion arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2189360Y true CN2189360Y (en) | 1995-02-08 |
Family
ID=33839850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94227018 Expired - Fee Related CN2189360Y (en) | 1994-01-07 | 1994-01-07 | Electricity power conversion arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2189360Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009018715A1 (en) * | 2007-08-08 | 2009-02-12 | Shenzhen Diguang Electronics Co., Ltd. | Led street lamp |
-
1994
- 1994-01-07 CN CN 94227018 patent/CN2189360Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009018715A1 (en) * | 2007-08-08 | 2009-02-12 | Shenzhen Diguang Electronics Co., Ltd. | Led street lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |