CN211088659U - Mining photoelectric conversion communication connector - Google Patents
Mining photoelectric conversion communication connector Download PDFInfo
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- CN211088659U CN211088659U CN201922495829.4U CN201922495829U CN211088659U CN 211088659 U CN211088659 U CN 211088659U CN 201922495829 U CN201922495829 U CN 201922495829U CN 211088659 U CN211088659 U CN 211088659U
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- photoelectric conversion
- intrinsic safety
- communication
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 108
- 238000004891 communication Methods 0.000 title claims abstract description 90
- 238000005065 mining Methods 0.000 title claims abstract description 18
- 239000013307 optical fiber Substances 0.000 claims abstract description 42
- 230000003287 optical effect Effects 0.000 claims abstract description 36
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 238000004880 explosion Methods 0.000 claims 1
- 238000002955 isolation Methods 0.000 abstract description 3
- 239000003245 coal Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000002788 crimping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a mining photoelectric conversion communication connector, which comprises a shell, a photoelectric conversion communication connecting circuit and an intrinsically safe cable quick plug-in unit; the photoelectric conversion communication connecting circuit is connected with the frequency conversion controller through an optical fiber and is connected with external equipment of the frequency converter or the frequency conversion integrated machine through an intrinsic safety cable quick plug-in; the photoelectric conversion communication connecting circuit comprises a fiber connector, a fiber transceiver circuit, a photoelectric conversion circuit and an intrinsic safety power circuit; the optical fiber connector is connected with the optical fiber and the optical transceiver circuit; the optical transceiver circuit is connected with the photoelectric conversion circuit; the photoelectric conversion circuit is connected with the intrinsic safety cable quick plug-in, and is used for realizing the conversion of an electric signal and an optical signal; the intrinsic safety power supply circuit is used for providing a direct current power supply for the photoelectric conversion circuit and an external communication link of the intrinsic safety cable quick plug-in unit. The connector realizes the electrical isolation of the communication circuit in the frequency converter or the frequency conversion all-in-one machine, and improves the stability and reliability of the communication system.
Description
Technical Field
The utility model relates to the field of electronic technology, especially, relate to a mining photoelectric conversion communication connector.
Background
The electrical equipment used in the underground coal mine needs to be subjected to electrical performance inspection and explosion-proof performance inspection tests, and the intrinsic safety of the mine is an explosion-proof type of the electrical equipment for the mine, and is the electrical equipment with the highest explosion-proof grade and the safest explosion-proof grade. The mining intrinsic safety type circuit is an ib type intrinsic safety type circuit which meets the national standard, and ib-grade electrical equipment cannot ignite explosive gas mixtures in normal operation and a fault.
With the technical innovation of coal mine equipment, the conveyor gradually realizes the driving of a frequency converter or a frequency conversion all-in-one machine, when the frequency converter or the frequency conversion all-in-one machine is driven by a plurality of machines, a communication cable connection mode is mostly adopted between a master machine and a slave machine or between the master machine and the slave machine and a controller, and the data interaction between the plurality of machines is realized through the communication cable.
When data interaction among multiple machines is realized through the communication cable, the frequency conversion controller is connected to external equipment by adopting a shielded twisted pair in the frequency converter or the frequency conversion all-in-one machine, and the whole communication network is realized by adopting a communication line mode. Because the frequency conversion controller can generate EMI (Electromagnetic Interference) during rectification and inversion, when the frequency conversion controller is connected to an external device in an electrical connection manner such as a shielded twisted pair, the frequency conversion controller is prone to generate Interference on communication inside the frequency converter or the frequency conversion all-in-one machine, which causes unstable communication.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect of prior art, the utility model provides a mining photoelectric conversion communication connector.
The utility model provides a mining photoelectric conversion communication connector, which comprises a shell, a photoelectric conversion communication connecting circuit and an intrinsically safe cable quick plug-in unit; the shell is covered outside the photoelectric conversion communication connecting circuit; the photoelectric conversion communication connecting circuit is connected with a variable frequency controller through an optical fiber, and the variable frequency controller is used for carrying out variable frequency control on a frequency converter or a variable frequency all-in-one machine; the photoelectric conversion communication connecting circuit is connected with external equipment of the frequency converter or the frequency conversion all-in-one machine through the intrinsic safety cable quick plug-in; the photoelectric conversion communication connection circuit comprises: the device comprises an optical fiber connector, an optical transceiver circuit, a photoelectric conversion circuit and an intrinsic safety power circuit; the optical fiber connector is connected with the optical fiber and the optical transceiver circuit; the optical transceiver circuit is connected with the photoelectric conversion circuit; the photoelectric conversion circuit is connected with the intrinsic safety cable quick plug-in, and is used for realizing the conversion of an electric signal and an optical signal; the intrinsic safety power circuit is connected with the photoelectric conversion circuit and the intrinsic safety cable quick plug-in unit and is used for providing a direct-current power supply for an external communication link of the photoelectric conversion circuit and the intrinsic safety cable quick plug-in unit.
In the connector as described above, preferably, the optical transceiver circuit is 2 paths, each path of optical transceiver circuit is connected with 2 optical fiber connectors, and each optical fiber connector is connected with 1 optical fiber; the intrinsic safety cable quick plug-in is a 6-core intrinsic safety plug-in, wherein 2 cores are used as a 12V power supply loop to be connected with an external communication link of the intrinsic safety cable quick plug-in, and the other 4 cores are used as a communication loop to be connected with the external communication link of the intrinsic safety cable quick plug-in; the number of the intrinsic safety cable quick plug-ins is 2, wherein 1 intrinsic safety cable quick plug-in is connected with the host equipment, and the other 1 intrinsic safety cable quick plug-in is connected with the slave equipment; the master machine equipment is used for driving the frequency converter or the frequency conversion all-in-one machine, and the slave machine equipment is used for driving the frequency converter or the frequency conversion all-in-one machine.
According to the connector, the shell is preferably an explosion-proof shell, the protection grade is IP55, the side face of the shell is in a cylindrical shape, the shell is provided with an explosion-proof face with the diameter of phi 94.96mm, one end of the shell of the connector, which is connected with the intrinsic safety cable quick plug-in connector, is provided with a sealing groove, the sealing groove is used for placing an O-shaped ring, the width of the sealing groove is 4mm, and the specification of the O-shaped ring is 90mm × 3.55.55 mm.
The connector as described above, wherein the output signal of the optical signal after passing through the photoelectric conversion circuit is a current signal of 4-20 mA.
The connector is preferably a single-mode fiber connector of F-SMA type, and the fiber connector is connected to the optical fiber by a thread locking mechanism.
The utility model provides a mining photoelectric conversion communication connector, which comprises a shell, a photoelectric conversion communication connecting circuit and an intrinsically safe cable quick plug-in unit; the shell is covered outside the photoelectric conversion communication connecting circuit; the photoelectric conversion communication connecting circuit is connected with a variable frequency controller through optical fibers, and the variable frequency controller is used for carrying out variable frequency control on a frequency converter or a variable frequency all-in-one machine; the photoelectric conversion communication connecting circuit is connected with external equipment of the frequency converter or the frequency conversion all-in-one machine through the intrinsic safety cable quick plug-in; photoelectric conversion communication connecting circuit includes: the device comprises an optical fiber connector, an optical transceiver circuit, a photoelectric conversion circuit and an intrinsic safety power circuit; the optical fiber connector is connected with the optical fiber and the optical transceiver circuit; the optical transceiver circuit is connected with the photoelectric conversion circuit; the photoelectric conversion circuit is connected with the intrinsic safety cable quick plug-in, and is used for realizing the conversion of an electric signal and an optical signal; the intrinsic safety power circuit is connected with the photoelectric conversion circuit and the intrinsic safety cable quick plug-in unit and is used for providing a direct-current power supply for an external communication link of the photoelectric conversion circuit and the intrinsic safety cable quick plug-in unit. Because the photoelectric conversion communication connecting circuit is connected with the variable frequency controller through the optical fiber, and the anti-interference capability of optical signal communication is strong, the connector realizes the electrical isolation of the internal communication circuit of the frequency converter or the frequency conversion all-in-one machine, and improves the stability and the reliability of a communication system. In addition, the connector is small in size and simple to mount and fix; the intrinsic safety plug connectors are adopted for connection, so that the wiring is convenient; the photoelectric conversion is stable and reliable, so the service life of the connector is long.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the mining photoelectric conversion communication connector provided by the present invention;
fig. 2A is a side view of an embodiment of the mining photoelectric conversion communication connector provided by the present invention;
fig. 2B is a back view of the embodiment of the mining photoelectric conversion communication connector provided by the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
To the EMI problem that the frequency conversion exists, this application provides a mining photoelectric conversion communication connector. This communication connector is connected with outside communication cable through this ampere of plug connector externally, then converts the signal of telecommunication into optical signal, passes through optic fibre and frequency conversion controller communication in inside, and optical signal has fine anti-interference characteristic, has solved the EMI of frequency conversion to the interference problem of communication, has improved the reliability of communication, has guaranteed entire system's operating stability. Fig. 1 is the utility model provides a mining photoelectric conversion communication connector's schematic structure. As shown in fig. 1, the mining photoelectric conversion communication connector of this embodiment includes a housing, a photoelectric conversion communication connection circuit, and an intrinsically safe cable quick connector. The shell is covered outside the photoelectric conversion communication connecting circuit; the photoelectric conversion communication connecting circuit is connected with a variable frequency controller through optical fibers, and the variable frequency controller is used for carrying out variable frequency control on a frequency converter or a variable frequency all-in-one machine; the photoelectric conversion communication connecting circuit is connected with external equipment of the frequency converter or the frequency conversion all-in-one machine through the intrinsically safe cable quick plug-in, and the intrinsically safe cable quick plug-in can be applied to electrical connection among underground equipment; photoelectric conversion communication connecting circuit includes: the device comprises an optical fiber connector, an optical transceiver circuit, a photoelectric conversion circuit and an intrinsic safety power circuit; the optical fiber connector is connected with the optical fiber and the optical transceiver circuit; the optical transceiver circuit is connected with the photoelectric conversion circuit; the photoelectric conversion circuit is connected with the intrinsic safety cable quick plug-in, and is used for realizing the conversion of an electric signal and an optical signal; the intrinsic safety power circuit is connected with the photoelectric conversion circuit and the intrinsic safety cable quick plug-in unit and is used for providing a direct-current power supply for an external communication link of the photoelectric conversion circuit and the intrinsic safety cable quick plug-in unit.
The utility model provides a technical scheme because photoelectric conversion communication connecting circuit passes through optic fibre and is connected with frequency conversion controller, adopts the optical signal communication interference killing feature strong, consequently this connector has realized the electrical isolation of converter or the inside communication circuit of frequency conversion all-in-one, and communication system stability and reliability are high, have improved communication quality. In addition, the connector is small in size and simple to mount and fix; the intrinsic safety plug connectors are adopted for connection, so that the wiring is convenient; the photoelectric conversion is stable and reliable, so the service life of the connector is long.
In the connector as described above, preferably, the optical transceiver circuit is 2 paths, each path of optical transceiver circuit is connected with 2 optical fiber connectors, and each optical fiber connector is connected with 1 optical fiber; the intrinsic safety cable quick plug-in is a 6-core intrinsic safety plug-in, wherein 2 cores are used as a 12V power supply loop to be connected with an external communication link of the intrinsic safety cable quick plug-in, and the other 4 cores are used as a communication loop to be connected with the external communication link of the intrinsic safety cable quick plug-in; the number of the intrinsic safety cable quick plug-ins is 2, wherein 1 intrinsic safety cable quick plug-in is connected with the host equipment, and the other 1 intrinsic safety cable quick plug-in is connected with the slave equipment; the master machine equipment is used for driving the frequency converter or the frequency conversion all-in-one machine, and the slave machine equipment is used for driving the frequency converter or the slave machine of the frequency conversion all-in-one machine; the optical fiber connector is an F-SMA single-mode optical fiber connector, and the optical fiber connector is connected with the optical fiber by adopting a thread locking mechanism so as to ensure the reliability of optical fiber connection.
Fig. 2A is the utility model provides a side view of mining photoelectric conversion communication connector embodiment, fig. 2B is the utility model provides a back view of mining photoelectric conversion communication connector embodiment, it is shown with reference to fig. 2A and fig. 2B, the casing of this embodiment is explosion-proof casing, the side of casing is the cask form, the casing is provided with the flame proof face that the diameter is phi 94.96mm, the casing of connector is provided with the seal groove with the one end that the fast plug-in components of this ampere of cable are connected, and the seal groove is used for placing O type circle to carry out water proof to the circuit board of the photoelectric conversion communication connecting circuit inside the casing, and the width of seal groove is 4mm, and the specification of O type circle is 90mm × 3.55.55 mm.
Continuing to refer to fig. 1, fig. 2A and fig. 2B, the external controller is connected to the communication connector through the intrinsic safety connector 1, so as to realize the communication between the local machine and the external centralized control; the intrinsic safety connector 2 of the machine is connected with the intrinsic safety connector 1 of the next machine, so that the interconnection between the master machine and the slave machine is realized; the optical fiber connectors 1,2,3 and 4 are connected with a variable frequency controller in the machine to realize optical signal connection of the variable frequency controller; the photoelectric conversion circuit of the circuit board realizes the conversion of an electric signal and an optical signal, the output signal of the optical signal after passing through the photoelectric conversion circuit is a current signal of 4-20mA, and the intrinsic safety power circuit provides an intrinsic safety 12V power supply for communication for a communication link; the protection grade of the explosion-proof shell is IP55, and the protection of the circuit board and the integral connection with the explosion-proof shell are realized.
The mining photoelectric conversion communication connector provided by the embodiment has the following characteristics:
1. the communication connector is directly connected with an external controller (a host) and a slave through a 6-core intrinsic safety connector, and a conventional frequency converter is generally connected by adopting communication line crimping or a 7-core communication connector. This adopts neotype 6 cores this ampere of connector to connect, and wherein 2 cores are as 12V power return circuits, and 4 cores are as communication return circuits.
2. The optical fiber connector of the communication connector adopts an F-SMA type single-mode optical fiber connector, and the optical fiber connector adopts a thread locking mechanism to ensure the reliability of optical fiber connection.
3. The optical fiber connectors 1,2,3 and 4 are connected with the photoelectric conversion circuit, optical signals are converted into current signals of 4-20mA and then are connected with the external intrinsic safety connectors 1 and 2, and meanwhile external electric signals are also converted into optical signals through the circuit and then are transmitted to the control unit, so that integral photoelectric signal conversion is realized.
4. The communication connector shell adopts a shell with a protection grade IP55 to protect an internal circuit board, and the protection grade meets the requirement of GB 3836.1.
5. The end part of the shell of the communication connector is provided with an explosion-proof surface with the diameter phi 94.96, so that the protection performance of the explosion-proof shell is ensured.
And 6, the communication connector end is provided with a sealing groove with the width of 4mm, and the sealing groove is used for placing an O-shaped ring with the specification of 90 × 3.55.55 and carrying out waterproof protection on the internal circuit board.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A mining photoelectric conversion communication connector is characterized by comprising a shell, a photoelectric conversion communication connecting circuit and an intrinsic safety cable quick plug-in unit;
the shell is covered outside the photoelectric conversion communication connecting circuit; the photoelectric conversion communication connecting circuit is connected with a variable frequency controller through an optical fiber, and the variable frequency controller is used for carrying out variable frequency control on a frequency converter or a variable frequency all-in-one machine; the photoelectric conversion communication connecting circuit is connected with external equipment of the frequency converter or the frequency conversion all-in-one machine through the intrinsic safety cable quick plug-in;
the photoelectric conversion communication connection circuit comprises: the device comprises an optical fiber connector, an optical transceiver circuit, a photoelectric conversion circuit and an intrinsic safety power circuit; the optical fiber connector is connected with the optical fiber and the optical transceiver circuit; the optical transceiver circuit is connected with the photoelectric conversion circuit; the photoelectric conversion circuit is connected with the intrinsic safety cable quick plug-in, and is used for realizing the conversion of an electric signal and an optical signal; the intrinsic safety power circuit is connected with the photoelectric conversion circuit and the intrinsic safety cable quick plug-in unit and is used for providing a direct-current power supply for an external communication link of the photoelectric conversion circuit and the intrinsic safety cable quick plug-in unit.
2. The connector of claim 1, wherein the optical transceiver circuit is 2-way, and each optical transceiver circuit is connected with 2 optical fiber connectors, and each optical fiber connector is connected with 1 optical fiber.
3. The connector of claim 1, wherein the intrinsically safe cable quick connector is a 6-core intrinsically safe connector, wherein 2 cores are connected as 12V power loops to the external communication links of the intrinsically safe cable quick connector, and the other 4 cores are connected as communication loops to the external communication links of the intrinsically safe cable quick connector.
4. The connector of claim 3, wherein the number of the intrinsically safe cable fast plug-ins is 2, wherein 1 intrinsically safe cable fast plug-in is connected with the host device, and the other 1 intrinsically safe cable fast plug-in is connected with the slave device; the master machine equipment is used for driving the frequency converter or the frequency conversion all-in-one machine, and the slave machine equipment is used for driving the frequency converter or the frequency conversion all-in-one machine.
5. The connector of claim 1, wherein the housing is an explosion proof housing having a protection rating of IP 55.
6. The connector according to claim 5, wherein the side surface of the shell is in a cylindrical shape, and the shell is provided with an explosion-proof surface with a diameter of phi 94.96 mm.
7. The connector of claim 6, wherein the end of the housing of the connector, which is connected to the quick connector of the intrinsically safe cable, is provided with a sealing groove for placing an O-ring.
8. The connector of claim 7, wherein the seal groove has a width of 4mm and the O-ring has a gauge of 90mm × 3.55.55 mm.
9. The connector of claim 1, wherein the output signal of the optical signal after passing through the photoelectric conversion circuit is a current signal of 4-20 mA.
10. The connector of any one of claims 1-9, wherein the fiber optic connector is a single mode fiber optic connector of the F-SMA type, the fiber optic connector being connected to the optical fiber using a threaded locking mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922495829.4U CN211088659U (en) | 2019-12-31 | 2019-12-31 | Mining photoelectric conversion communication connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922495829.4U CN211088659U (en) | 2019-12-31 | 2019-12-31 | Mining photoelectric conversion communication connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211088659U true CN211088659U (en) | 2020-07-24 |
Family
ID=71647879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922495829.4U Active CN211088659U (en) | 2019-12-31 | 2019-12-31 | Mining photoelectric conversion communication connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211088659U (en) |
-
2019
- 2019-12-31 CN CN201922495829.4U patent/CN211088659U/en active Active
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