CN204243718U - Be suitable for the outdoor use overcurrent protector protecting railway circuit safety - Google Patents
Be suitable for the outdoor use overcurrent protector protecting railway circuit safety Download PDFInfo
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- CN204243718U CN204243718U CN201420594624.6U CN201420594624U CN204243718U CN 204243718 U CN204243718 U CN 204243718U CN 201420594624 U CN201420594624 U CN 201420594624U CN 204243718 U CN204243718 U CN 204243718U
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- overcurrent
- overcurrent protector
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Abstract
The utility model relates to a kind of outdoor use overcurrent protector being suitable for protecting railway circuit safety, it is characterized in that, comprise: the electricity-fetching module be connected with main circuit, the charge and discharge control module be connected with this electricity-fetching module, this charge and discharge control module is connected with a storage battery; Described storage battery is powered by charge and discharge control module storage of electrical energy or to described outdoor use overcurrent protector; The utility model achieves storage of electrical energy by electricity-fetching module, charge and discharge control module and storage battery or powers to described outdoor use overcurrent protector, makes described outdoor use overcurrent protector depart from working power, can work alone out of doors.
Description
Technical field
The utility model relates to railway traffic safety field, particularly relates to a kind of outdoor use overcurrent protector being suitable for protecting railway circuit safety.
Background technology
All kinds of control power failure causes railway signals equipment can not one of the key factor of normal reliable work.At present, the outdoor use overcurrent of railway signals equipment or short-circuit protector mainly adopt fuse or circuit breaker, wherein, fuse with low cost, the discreteness that its blow-out current value ubiquity is larger, particularly also exist due to aging and cause in use fuse fracture of wire phenomenon occurs, normally run to equipment and bring serious hidden danger, even two fuse equipment exists above drawback equally, circuit breaker all can play a protective role to overcurrent and short circuit, along with technological progress, the current class of circuit breaker continues to increase, time and the sensitivity of cutting off electric current also improve constantly, but, circuit breaker does not possess runback function, particularly due to power-supply fluctuation, thunder and lightning hits, electrified impact, the temporary over-current that misoperation causes short circuit and causes or short circuit cause in circuit breaker tripping, circuit breaker can not recover conducting voluntarily, also need artificial going to check and recover, and traditional overcurrent protector can only be installed on indoor, when outdoor is owing to lacking supply line, the normal work of overcurrent protector cannot be maintained.
Utility model content
The purpose of this utility model is to provide a kind of outdoor use overcurrent protector being suitable for protecting railway circuit safety, relies on utility grid power to solve traditional overcurrent protector, cannot the technical problem of outside work.
In order to solve the problems of the technologies described above, the utility model provides a kind of outdoor use overcurrent protector being suitable for protecting railway circuit safety, comprise: the electricity-fetching module be connected with main circuit, the charge and discharge control module be connected with this electricity-fetching module, this charge and discharge control module is connected with a storage battery; Described storage battery is powered by charge and discharge control module storage of electrical energy or to described outdoor use overcurrent protector.
Preferably, cannot realize the time delay of institute's protective circuit or the technical problem turning off and automatically recover conducting immediately to solve conventional overcurrent protector; Described outdoor use overcurrent protector also comprises: for detecting overcurrent transducer and the short circuit current transducer of main circuit current, the processor module be connected with the signal output part of short circuit current transducer with described overcurrent transducer; Described processor module is suitable for the current detection signal according to overcurrent transducer, controls main electronic switch time delay disconnection or closed reduction; And according to the current detection signal of short circuit current transducer, control described main electronic switch and disconnect or closed reduction; Described processor module is also connected with clock chip, and sets delay time and the closed reduction time of described main electronic switch disconnection by this clock chip.Realizing overcurrent, short-circuit protection to main circuit by detecting current value in main circuit, namely time delayed turn-off, immediately shutoff being carried out to main circuit and automatically recovering the operation of conducting, greatly can alleviate the labour intensity of execute-in-place, improve the usefulness of signal management work.
Preferably, in order to avoid signal disturbing, described overcurrent transducer, short circuit current transducer are connected with the signal input part of described processor module respectively by an auxiliary electron switch, and the control end of this auxiliary electron switch is also connected with the signal output part of overcurrent transducer with short circuit current transducer.
Preferably, in order to solve after main circuit disconnects power supply further, carry out the technical problem resetted, described processor module is also connected for the reset button controlled of carrying out processor module resetting with one, possesses reset function to make outdoor use overcurrent protector.
Preferably, described processor module is also connected the state information that is applicable to show main circuit with a display module.
Preferably, the main circuit of described main electronic switch rear end also connects a failure protector, to realize when Module Fail such as the processor module being positioned at front end, current sensors, playing a protective role to power consumption equipment.
Preferably, conveniently step-down power taking, described electricity-fetching module comprises: the transformer being suitable for step-down be connected with main circuit, and current rectifying and wave filtering circuit; The main coil of described transformer is connected with main circuit, and its secondary coil is connected with described current rectifying and wave filtering circuit, and this current rectifying and wave filtering circuit is connected with described charge and discharge control module.
Technique scheme of the present utility model has the following advantages compared to existing technology: the utility model achieves storage of electrical energy by electricity-fetching module, charge and discharge control module and storage battery or powers to described outdoor use overcurrent protector; make described outdoor use overcurrent protector depart from working power, can work alone out of doors.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 shows the theory diagram of described the first execution mode of outdoor use overcurrent protector;
Fig. 2 shows the theory diagram of described outdoor use overcurrent protector the second execution mode.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
Embodiment 1
Fig. 1 shows the theory diagram of described the first execution mode of outdoor use overcurrent protector.
As shown in Figure 1, a kind of outdoor use overcurrent protector being suitable for protection railway circuit safety, comprising: the electricity-fetching module be connected with main circuit, the charge and discharge control module be connected with this electricity-fetching module, this charge and discharge control module is connected with a storage battery; Described storage battery is powered by charge and discharge control module storage of electrical energy or to described outdoor use overcurrent protector.
Wherein, described electricity-fetching module comprises: the transformer being suitable for step-down be connected with main circuit, and current rectifying and wave filtering circuit.Concrete, the main coil of this transformer is connected with described main circuit, and its secondary coil is connected with current rectifying and wave filtering circuit, and described filter circuit is connected with described charge and discharge control module.Described charge and discharge control module all has relevant describing in the prior art, such as Authorization Notice No. CN 201674254U intelligent accummulator charge and discharge device.Described storage battery can store electric energy, and when processor module cuts off after main circuit, described storage battery can maintain the normal operation of outdoor use overcurrent protector, concrete function mode see embodiment with lower part.
Described outdoor use overcurrent protector also comprises: for detecting overcurrent transducer and the short circuit current transducer of main circuit current, the processor module be connected with the signal output part of short circuit current transducer with described overcurrent transducer; Described processor module is suitable for the current detection signal according to overcurrent transducer, controls main electronic switch time delay disconnection or closed reduction; And according to the current detection signal of short circuit current transducer, control described main electronic switch and disconnect or closed reduction; Described processor module is also connected with clock chip, and sets delay time and the closed reduction time of described main electronic switch disconnection by this clock chip.
Power consumption equipment in Fig. 1 is railway signals equipment.
Wherein, described overcurrent transducer and short circuit current transducer all adopt current sensor, and main circuit is each passed through the magnetic of described overcurrent transducer and short circuit current transducer.Processor in described processor module can be, but not limited to adopt the processor chips such as single-chip microcomputer, and described clock chip adopts but is not limited to DS12C887, DS1302Z.
Concrete, described overcurrent transducer, short circuit current transducer are suitable for gathering the current value on main circuit respectively.
Wherein, the concrete steps of overcurrent protection comprise: the described criterion crossing current circuit is less than 3I0 more than 1.3I0 (I0 nominal current or set electric current) for its current value.If when described processor module judges that the electric current in main circuit is overcurrent, disconnected to control main electronic switch time delay by the delay time set by clock chip, namely cut off main circuit and power; And according to the described closed reduction time, processor module controls main electronic switch closes, recover main circuit and power, whether revert to normal value with the electric current detecting main circuit, if electric current continues overcurrent, then delay cutoff main circuit is powered again; Optionally, this process can repeat 3-4 time, if electric current is also in over-current state, then permanent shut-down main circuit is powered.
The concrete steps of short-circuit protection comprise: the criterion of short circuit current is more than or equal to 3I0 for its current value.If described processor module judges that the electric current in main circuit is short circuit current, then control main electronic switch and disconnect, namely cut off main circuit and power; And according to the described closed reduction time, processor module controls main electronic switch closes, recover main circuit and power, whether revert to normal value with the electric current detecting main circuit, if or short circuit current, then again cut off main circuit and power; Optionally, this process can repeat 3-4 time, if electric current is also in short-circuit condition, then permanent shut-down main circuit is powered.
Described processor module is also connected for the reset button controlled of carrying out processor module resetting with one.Described reset button is suitable for forever disconnecting at main circuit and recovering conducting main circuit after failture evacuation, that is, described processor module is after the reset signal of key entry receiving described reset button, controls main electronic switch closes, namely restores electricity.
Preferably, described processor module is also connected the state information that is applicable to show main circuit with a display module.
Preferably, the main circuit of described main electronic switch rear end also connects a failure protector, to realize when Module Fail such as the processor module being positioned at front end, current sensors, playing a protective role to power consumption equipment.Described failure protector is such as but not limited to protector such as employing fuse or air switch etc.
In the present embodiment about the method for the output signal of processor module process overcurrent transducer and short circuit current transducer at paper document: the third phase in 2006 is published in " Hall current sensor and the application in power protection thereof " of periodical " instrument and meter user " has carried out detailed discussion.Processor module is connected to carry out time setting method with clock chip belongs to prior art.Processor module is connected to carry out corresponding display method to display module belongs to prior art.
Embodiment 2
Fig. 2 shows the theory diagram of described outdoor use overcurrent protector the second execution mode.
As shown in Figure 2; as the second execution mode of described outdoor use overcurrent protector; namely on the basis of embodiment 1; with the addition of auxiliary electron switch; concrete; described overcurrent transducer, short circuit current transducer are connected with the signal input part of described processor module respectively by an auxiliary electron switch, and the control end of this auxiliary electron switch is also connected with the signal output part of overcurrent transducer, short circuit current transducer.
The interference of small-signal to processor module is effectively avoided by this auxiliary electron switch, concrete, the threshold voltage of the control end of auxiliary electron switch can be set, then when the voltage of main circuit is higher than I0 and lower than 1.3I0, auxiliary electron switch is in closed condition, and processor is also without the need to processing current detection signal.Only have when electric current is higher than 1.3I0, the signal strength signal intensity that described overcurrent transducer and short circuit current transducer produce just can reach described threshold voltage, and auxiliary electron switch is closed, and described processor module receives current detection signal, makes corresponding actions.
Overcurrent protection is identical with embodiment 1 with the detailed process of short-circuit protection, repeats no more here.
The main electronic switch adopted in embodiment 1 and embodiment 2 and auxiliary electron switch can adopt but be not limited to thyristor, transistor, field effect transistor, controllable silicon, relay.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to right.
Claims (7)
1. be suitable for the outdoor use overcurrent protector protecting railway circuit safety, it is characterized in that, comprising: the electricity-fetching module be connected with main circuit, the charge and discharge control module be connected with this electricity-fetching module, this charge and discharge control module is connected with a storage battery;
Described storage battery is powered by charge and discharge control module storage of electrical energy or to described outdoor use overcurrent protector.
2. outdoor use overcurrent protector according to claim 1, it is characterized in that, described outdoor use overcurrent protector also comprises: for detecting overcurrent transducer and the short circuit current transducer of main circuit current, the processor module be connected with the signal output part of short circuit current transducer with described overcurrent transducer;
Described processor module is suitable for the current detection signal according to overcurrent transducer, controls main electronic switch time delay disconnection or closed reduction; And
According to the current detection signal of short circuit current transducer, control described main electronic switch and disconnect or closed reduction;
Described processor module is also connected with clock chip, and sets delay time and the closed reduction time of described main electronic switch disconnection by this clock chip.
3. outdoor use overcurrent protector according to claim 2, is characterized in that,
Described overcurrent transducer, short circuit current transducer are connected with the signal input part of described processor module respectively by an auxiliary electron switch, and the control end of this auxiliary electron switch is also connected with the signal output part of overcurrent transducer with short circuit current transducer.
4. the outdoor use overcurrent protector according to Claims 2 or 3, is characterized in that, described processor module is also connected for the reset button controlled of carrying out processor module resetting with one.
5. outdoor use overcurrent protector according to claim 4, is characterized in that, described processor module is also connected the state information being applicable to show main circuit with a display module.
6. outdoor use overcurrent protector according to claim 5, is characterized in that, the main circuit of described main electronic switch rear end also connects a failure protector.
7. outdoor use overcurrent protector according to claim 1, is characterized in that, described electricity-fetching module comprises: the transformer being suitable for step-down be connected with main circuit, and current rectifying and wave filtering circuit;
The main coil of described transformer is connected with main circuit, and its secondary coil is connected with described current rectifying and wave filtering circuit, and this current rectifying and wave filtering circuit is connected with described charge and discharge control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420594624.6U CN204243718U (en) | 2014-10-14 | 2014-10-14 | Be suitable for the outdoor use overcurrent protector protecting railway circuit safety |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420594624.6U CN204243718U (en) | 2014-10-14 | 2014-10-14 | Be suitable for the outdoor use overcurrent protector protecting railway circuit safety |
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| Publication Number | Publication Date |
|---|---|
| CN204243718U true CN204243718U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420594624.6U Withdrawn - After Issue CN204243718U (en) | 2014-10-14 | 2014-10-14 | Be suitable for the outdoor use overcurrent protector protecting railway circuit safety |
Country Status (1)
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|---|---|
| CN (1) | CN204243718U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104253407A (en) * | 2014-10-14 | 2014-12-31 | 常州东方铁路器材有限公司 | Outdoor overcurrent protector suitable for protecting railway circuit safety |
| CN105158704A (en) * | 2015-08-28 | 2015-12-16 | 贵州天义电器有限责任公司 | DC power supply quality detection module |
| WO2021052116A1 (en) * | 2019-09-18 | 2021-03-25 | 展讯通信（深圳）有限公司 | Charging overcurrent protection circuit and method |
-
2014
- 2014-10-14 CN CN201420594624.6U patent/CN204243718U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104253407A (en) * | 2014-10-14 | 2014-12-31 | 常州东方铁路器材有限公司 | Outdoor overcurrent protector suitable for protecting railway circuit safety |
| CN104253407B (en) * | 2014-10-14 | 2017-04-05 | 常州东方铁路器材有限公司 | A kind of outdoor use overcurrent protector for being suitable to protect railway circuit safety |
| CN105158704A (en) * | 2015-08-28 | 2015-12-16 | 贵州天义电器有限责任公司 | DC power supply quality detection module |
| CN105158704B (en) * | 2015-08-28 | 2018-02-06 | 贵州天义电器有限责任公司 | Dc source Quality Detection module |
| WO2021052116A1 (en) * | 2019-09-18 | 2021-03-25 | 展讯通信（深圳）有限公司 | Charging overcurrent protection circuit and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150401 Effective date of abandoning: 20170405 |