CN211127144U - Communication ring network power supply system with automatic switching device - Google Patents
Communication ring network power supply system with automatic switching device Download PDFInfo
- Publication number
- CN211127144U CN211127144U CN201922302921.4U CN201922302921U CN211127144U CN 211127144 U CN211127144 U CN 211127144U CN 201922302921 U CN201922302921 U CN 201922302921U CN 211127144 U CN211127144 U CN 211127144U
- Authority
- CN
- China
- Prior art keywords
- communication
- switching device
- frequency converter
- automatic switching
- power supply
- 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.)
- Active
Links
Images
Landscapes
- Maintenance And Management Of Digital Transmission (AREA)
- Control Of Multiple Motors (AREA)
Abstract
The utility model relates to a communication looped netowrk power supply system specifically is a communication looped netowrk power supply system with automatic switching device. The frequency converter of each driving motor is independently connected with an automatic switching device, the automatic switching device judges whether the master-slave communication of the frequency converter is allowed to be put into use, if the frequency converter is available, the frequency converter is connected with a communication ring network, and the corresponding driving motor normally operates; otherwise, the frequency converter is disconnected from the communication ring network, the corresponding driving motor stops running, and the communication node is automatically grafted to the next frequency converter. When a certain system of many motor drive, the utility model discloses can realize going up the electricity and drop into automatically, the automatic excision of outage has solved because of one of them breaks down the problem that leads to entire system can not move.
Description
Technical Field
The utility model relates to a communication looped netowrk power supply system specifically is a communication looped netowrk power supply system with automatic switching device.
Background
With the maturity of the frequency converter technology and the increasingly wide application range, the frequency converter is more and more widely applied to special occasions such as mines in coal mines and the like due to the accurate speed control and the good energy-saving effect, particularly on a transportation belt, as most of motors dragged by the transportation belt are more than two, even 3-4, in order to ensure the output power of the frequency converter to be basically consistent, looped network communication with balanced master and slave power can be adopted, but when one frequency converter breaks down, the communication looped network is powered off, so that the transportation belt can not run, and in order to ensure the system to have the problem, the system is put into operation again at the fastest speed, and meanwhile, the maintenance of fault equipment is not influenced, and the novel communication looped network power supply system is provided.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a communication looped netowrk power supply system with automatic switching device, when a certain system of many motor drive, the automatic input of electricity on the realization, the automatic excision of outage to solve because of one of them breaks down and lead to the problem that entire system can not move.
The utility model provides a technical scheme that its technical problem adopted is: a communication looped network power supply system with automatic switching device, include a main driving motor and at least one slave driving motor, every driving motor connects a frequency converter, the frequency converter has communication integrated circuit boards, the frequency converter of every driving motor connects an automatic switching device alone, the automatic switching device judges whether the master slave communication of the frequency converter allows to put into use, if available, the frequency converter inserts the communication looped network, the correspondent driving motor operates normally; otherwise, the frequency converter is disconnected from the communication ring network, the corresponding driving motor stops running, and the communication node is automatically grafted to the next frequency converter, so that the breakpoint in the communication ring network is eliminated.
Adopt above-mentioned technical scheme the utility model discloses, compare with prior art, beneficial effect is:
whether the master-slave communication of the current equipment is allowed to be put into use or not is judged according to the state of the load isolating switch, and the automatic switching of the communication ring network is completed through the switching-on and switching-off of the load isolating switch, so that the problem that the whole system cannot operate when a certain equipment fails is solved.
Preferably, the present invention further provides:
the automatic switching device comprises a load isolating switch, a switching relay and a direct-current switch power supply which are connected in series. And judging whether the master-slave communication of the current frequency converter is allowed to be put into use or not according to the state of the load isolating switch.
When the load isolating switch is in a closing state, the direct-current switch power supply supplies power, a communication sending port of the communication board card sends a switching-on signal to the switching relay, and a normally open contact of the switching relay is attracted to complete connection with the communication ring network.
When the load isolating switch is in an opening state, the direct-current switch power supply is powered off, a communication sending port of the communication board card sends a disconnection signal to the switching relay, and a normally closed contact of the switching relay is attracted and disconnected with the communication ring network.
When the normally closed contact of the switching relay is attracted, the communication node of the communication ring network is automatically grafted to the next frequency converter, and the normal operation of other frequency converters in a connection state is ensured.
The contacts of the load isolating switch are auxiliary contacts or contacts with interlocking relationship.
The automatic switching device also comprises a diode which is connected with the switching relay in parallel, and when the switching relay is disconnected, the diode plays a role in protecting components inside the switching relay.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of the automatic switching device of the present invention;
FIG. 3 is a schematic diagram of the operation of the present invention;
in the figure: communication transmission ports 1 and 3; communication receiving ports 2 and 4; a load isolating switch 5; a direct-current switching power supply 6; the relay 7 is switched.
Detailed Description
The invention will be further described with reference to the following examples, which are intended only for a better understanding of the invention. The illustrated embodiments do not limit the scope of the invention.
Referring to fig. 1, the communication ring network power supply system of the embodiment includes a master driving motor and two slave driving motors, each driving motor is power-regulated by a frequency converter, a communication board of the frequency converter is connected to the communication ring network, each frequency converter is connected to an automatic switching device, the automatic switching device detects whether master-slave communication of the frequency converter is allowed to be put into use, if available, the frequency converter is connected to the communication ring network, and the corresponding driving motor operates normally; otherwise, the frequency converter is disconnected from the communication ring network, the corresponding driving motor stops running, and the communication node is automatically grafted to the next frequency converter.
Referring to fig. 2, the communication ring network automatic switching device of the embodiment includes a load isolation switch 5, a switching relay 7, a diode, a dc switching power supply 6, and an output terminal, wherein the load isolation switch 5, the switching relay 7, and the dc switching power supply 6 are connected in series, and whether the current master-slave communication of the frequency converter is allowed to be used is determined by the state of the load isolation switch 5. The diode is connected with the switching relay 7 in parallel, and when the switching relay 7 is switched off, the diode plays a role in protecting components inside the switching relay 7.
Referring to fig. 3, the working principle of this embodiment is that when the load isolation switch 5 is switched on, the communication switching relay 7 is attracted, the communication lines are correspondingly connected with the terminals according to the arrangement order, that is, the contacts ⑨, ⑩, ⑩ 0 and ⑩ 1 are respectively connected with the contacts ⑤, ⑥, ⑦ and ⑧, so as to automatically complete the connection of the communication ring network, when the load isolation switch 5 is switched off, the communication switching relay 7 is disconnected, and the contacts ⑨, ⑩, ⑪ and ⑫ are respectively connected with the contacts ⑩ 2, ⑩ 3, ⑩ 4 and ⑩ 5 through short circuit between the closed points, so as to complete the removal of the communication node of the frequency converter, and simultaneously, the communication node is automatically grafted to the next frequency converter, so as to eliminate the break point of the communication.
The utility model discloses an actual application effect inspection, the automatic switching action of the inside principal and subordinate driving motor of completion communication looped netowrk that can be accurate reliable is applicable to colliery, power supply scene in the pit.
Claims (3)
1. The utility model provides a communication looped netowrk power supply system with automatic switching device, includes a main driving motor and an at least follow driving motor, and a converter is connected to every driving motor, and the converter has communication integrated circuit board, its characterized in that: the frequency converter of each driving motor is independently connected with an automatic switching device; the automatic switching device comprises a load isolating switch, a switching relay and a direct-current switch power supply which are connected in series.
2. The power supply system of the communication ring network with the automatic switching device as claimed in claim 1, wherein the contacts of the load isolating switch are auxiliary contacts or contacts with interlocking relationship.
3. The communication ring network power supply system with automatic switching device as claimed in claim 1, wherein the automatic switching device further comprises a diode connected in parallel with the switching relay for protecting the components inside the switching relay when the switching relay is turned off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922302921.4U CN211127144U (en) | 2019-12-20 | 2019-12-20 | Communication ring network power supply system with automatic switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922302921.4U CN211127144U (en) | 2019-12-20 | 2019-12-20 | Communication ring network power supply system with automatic switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211127144U true CN211127144U (en) | 2020-07-28 |
Family
ID=71707216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922302921.4U Active CN211127144U (en) | 2019-12-20 | 2019-12-20 | Communication ring network power supply system with automatic switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211127144U (en) |
-
2019
- 2019-12-20 CN CN201922302921.4U patent/CN211127144U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107845519B (en) | Double power supply automatic transfer switch and its control method | |
| CN211127144U (en) | Communication ring network power supply system with automatic switching device | |
| EP2184816A1 (en) | An intelligent switch socket | |
| CN113282036A (en) | Communication control device and method of HBS (hybrid bus system) and multi-split system | |
| CN102820847B (en) | Control communication device and method suitable for variable-frequency motor | |
| CN112072741A (en) | One-key starting system and method for household energy storage system | |
| CN201877880U (en) | Motor controlled switching circuit for primary/standby equipment | |
| CN203070004U (en) | Remote double-control power supply management system with local forced control | |
| CN105024730A (en) | Twisted-pair-based time division multiplexing system | |
| CN211579987U (en) | Communication equipment based on POE interface | |
| CN201829416U (en) | Manual and network concurrently-controlled relay output device | |
| CN207844770U (en) | A kind of mine hoist signal control integration module | |
| CN109143838B (en) | Special dual-redundancy switching circuit for underwater | |
| CN101477922B (en) | Motherboard electric connection construction for controlling protection electric appliance | |
| CN220022406U (en) | Dual-power switching device applied to DTU and FTU | |
| CN219181241U (en) | Power conversion device and power conversion system | |
| CN201449544U (en) | Integrated protection, measurement and control and communication device based on component structure | |
| CN216390588U (en) | Double-direct-current system control circuit | |
| CN204836164U (en) | Time division multiplex system based on paired line | |
| CN218866919U (en) | Control system and equipment | |
| CN214355992U (en) | Explosion-proof and intrinsically safe locomotive combination device and locomotive | |
| CN215797760U (en) | Elevator power failure emergency device with automatic reclosing function | |
| CN214540457U (en) | Double-remote-control driving control system capable of being switched rapidly | |
| CN216285600U (en) | Breaker switch state monitoring system | |
| CN214670175U (en) | Communication control device of HBS (high speed bus) bus and multi-split system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210325 Address after: 063021 No. 168, Kai Yue Road, Kaiping District, Hebei, Tangshan City Patentee after: TANGSHAN ZHICHENG ELECTRICAL (Group) Co.,Ltd. Address before: 063021 No. 168, Kai Yue Road, Kaiping District, Hebei, Tangshan City Patentee before: TANGSHAN JINKEFA ELECTRIC Co.,Ltd. |
|
| TR01 | Transfer of patent right |