CN210246491U - Intelligent motor junction box with pre-installed sensor - Google Patents
Intelligent motor junction box with pre-installed sensor Download PDFInfo
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- CN210246491U CN210246491U CN201921490395.2U CN201921490395U CN210246491U CN 210246491 U CN210246491 U CN 210246491U CN 201921490395 U CN201921490395 U CN 201921490395U CN 210246491 U CN210246491 U CN 210246491U
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Abstract
The utility model provides an intelligent motor terminal box with prepackage type sensor belongs to intelligence and makes technical field. The device comprises a current transformer, a conductor sheet, a voltage transformer, a temperature sensor, an outlet interface, a wiring socket, a wiring harness plug, a wiring terminal, a motor wiring base and the like. The adaptability improvement is carried out on the motor junction box, the current transformer and the voltage transformer, and a plurality of online monitoring sensors are preassembled in the motor junction box by utilizing the wiring terminal, so that the structure of the motor is not changed, and any other influence on the motor is not caused. The terminal strip is adopted, an online monitoring Internet of things terminal can be directly installed in the motor junction box, and plug and play and portability of online monitoring of the intelligent motor are achieved by adopting a wiring socket or wiring harness plug design. Therefore, integration, miniaturization and modularization of the sensor required by intelligent online monitoring of the motor are realized, compatibility, convenience, flexibility, reliability, safety and the like are achieved, and the motor intelligent online monitoring system can be widely applied to various motors.
Description
Technical Field
The utility model relates to a motor terminal box, especially an intelligent motor terminal box of prepackage type thing networking sensor has integrateed. Belongs to the technical field of intelligent manufacturing.
Background
The motor is widely applied to various fields of industrial production, various faults can occur in the operation process, such as overvoltage, overcurrent, overload, phase loss, temperature abnormity and the like, the normal operation of the whole system and production is influenced, and even serious economic loss is caused. Along with the development of intelligent manufacturing and intelligent factories, intelligent acquisition and monitoring of motor operation parameters are particularly important for intelligent fault diagnosis, intelligent state early warning and intelligent operation control of motor operation.
The monitoring of the motor running state mostly adopts independent monitoring equipment, monitoring points are installed on the motor, then data are all sent to a control center to be processed, and the motor running state is displayed through a client. The biggest problem of doing so is exactly when gathering motor operation information, needs the motor to have a power failure installation monitoring facilities, influences normal production, and some parameter monitoring will disassemble the installation sensor even to the motor, cause certain destruction to the motor, when carrying out multinomial monitoring, various signal line of field installation are more, are difficult to discern, cause the influence to signal acquisition work.
At present, the online operation monitoring of the motor mainly aims at a large motor or a special motor, and adopts a mode of a plurality of split type devices and temporary installation. The Chinese patent 'neutral point junction box of high-voltage explosion-proof motor' (application number: 201120309600.8) proposes that 'the direct connection between a current transformer in a box body and a motor junction terminal does not need to be connected with the current transformer and the junction terminal, and the secondary signal of the current transformer is directly output'. Although with current transformer direct mount at the terminal box, the neutral point connection only is applicable to the star connection of motor, and current transformer's putting does not make full use of the terminal of motor, causes the terminal box occupation space big, and the device can only gather the phase current signal of motor moreover, and monitoring parameter is too single, and the sensor does not have the commonality. The Chinese patent ' junction box for monitoring motor operation data ' (application number: 201120133292.8) provides ' a junction box for monitoring motor operation data, which has high integration level, can detect the vibration, temperature and current of a motor, realizes monitoring and convenient inspection, and can output through alarming. "however, this patent only mentions that the terminal post is inserted through the current transformer, and does not disclose a specific structure and mounting method, whereas conventionally, the terminal post is relatively short, which is difficult to directly implement without creative and rational improvements to the terminal post, the terminal block, and the current transformer; meanwhile, an integrated motor monitoring sensor platform is not established, so that the motor operation data is utilized in a generalized and intelligent manner.
The inventor of the application proposes an intelligent motor system in a Chinese patent 'intelligent motor system' (application number: 201710259096.7), realizes long-term, continuous and real-time comprehensive operation big data monitoring in the motor operation process by adopting integrated intelligent online monitoring, but does not disclose the specific structure and assembly mode of an integrated pre-installed sensor.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides an intelligent motor junction box with pre-installation sensor. The sensor that will carry out motor operation parameter and gather concentrates and preassembles in the motor terminal box, through carrying out creative transformation to terminal and sensor in the motor terminal box, reasonable arrangement sensor overall arrangement concentrates on terminal block or external socket with the voltage, electric current and the temperature signal collection of motor on, thereby establish the integrated sensing hardware platform that motor operation parameter gathered, with the required voltage of realization intelligent motor system, the integration of electric current and temperature sensor, miniaturization, the modularization, and compatibility, convenience, flexibility, reliability, security etc. When the motor is monitored and detected, the intelligent online monitoring of the motor is realized by plug and play without even power failure; the motor has the advantages of simple structure, low cost, small volume, convenient use and the like, and can be widely applied to various types of motors.
The utility model provides a technical scheme that its technical problem adopted is:
the intelligent motor junction box with the pre-installed sensor comprises a current transformer (1), a conductor sheet (2), a first terminal (3), a second terminal (4), a motor junction box (5), a power supply incoming line (6), a connecting sheet (7), a winding incoming line (8), a nut (9), a winding outgoing line (10), a motor junction box (11), a current transformer output line (12), a conductor sheet outgoing line (13), a neutral line outgoing line (14), an outgoing line interface (15) and an incoming line hole (16).
The current transformer (1) and the conductor sheet (2) are integrated, an insulating layer is arranged in the middle of the current transformer (1), and the first binding post (3) penetrates through a through hole in the middle of the current transformer (1) and the conductor sheet (2); the inner diameter of the current transformer (1) is slightly larger than the diameters of the first binding post (3) and the second binding post (4). The first binding post (3) and the second binding post (4) are respectively fixed on two sides of the motor binding post base (5); the motor wire holder (5) can directly cast the first wiring terminal (3) and the second wiring terminal (4) at fixed positions during forming.
The first binding post (3) is sequentially provided with a power supply inlet wire (6), a current transformer (1), a conductor sheet (2), a connecting sheet (7) and a motor winding inlet wire (8) from top to bottom, and the middle of the first binding post is fixedly compressed by a nut (9); the second binding post (4) is sequentially provided with a connecting sheet (7) and a motor winding outlet wire (10) from top to bottom, and the middle part of the second binding post is fixedly compressed by a nut (9). When the motor is fixed by the nut (9), the positions of the power supply inlet wire (6), the motor winding inlet wire (8) and the motor winding outlet wire (10) are required to be pressed.
The first binding post (3), the second binding post (4) and the motor wire holder (5) are packaged in a motor junction box (11); the base of the motor wiring seat (5) is not too high and is designed to be matched with the heights of the first wiring terminal (3) and the second wiring terminal (4) and the height of the motor wiring box (11).
A current signal obtained by the current transformer (1) is led out through a current transformer output line (12), a voltage obtained by the conductor sheet (2) is led out through a conductor sheet outgoing line (13), and a neutral line outgoing line (14) is connected to a neutral line of a power supply incoming line (6); the current transformer output line (12), the conductor sheet outgoing line (13) and the middle line outgoing line (14) are all shielded wires, so that the anti-interference capability is improved, and the shielded wires are gathered on the outgoing line interface (15) and used by other equipment; the power supply inlet wire (6) is led into the motor from a wire inlet hole (16) on the motor junction box (11).
The conductor strip lead wire (13) and the middle wire lead wire (14) can provide voltage signals for external monitoring equipment, and can simultaneously provide power supply.
Furthermore, the intelligent motor junction box with the pre-installed sensor further comprises a voltage transformer (17), a first input end (18) of the voltage transformer, a second input end (19) of the voltage transformer, a voltage transformer output line (20), a current-limiting resistor box (21) and a current-limiting resistor (22).
A voltage transformer (17) is installed in a motor junction box (11), a first input end (18) of the voltage transformer (17) is connected with a conductor sheet (2) through a current-limiting resistor (22) clamped in a current-limiting resistor box (21) to convert strong voltage into weak current measurable signals, a second input end (19) of the voltage transformer is connected with a central line of a power supply inlet wire (6), voltage signals acquired by the voltage transformer (17) are led out through a voltage transformer output wire (20), and are collected to an outlet wire interface (15) by adopting a shielding wire to be used by other equipment. The current-limiting resistor box (21) is designed to be clamped or plugged, so that the current-limiting resistor (22) can be put in or taken out at any time, and replacement is facilitated.
Furthermore, the intelligent motor junction box with the pre-installed sensor comprises a temperature sensor (23) and a temperature sensor output line (24), the temperature sensor (23) is installed in the motor junction box (11) and is used for measuring the temperature of the first wiring terminal (3) and/or the second wiring terminal (4), a temperature signal obtained by the temperature sensor (23) is led out through the temperature sensor output line (24) and collected to the wire outlet interface (15) by adopting a shielding line for use by other equipment. Adopt nut (9) crimping power inlet wire (6), motor winding inlet wire (8) and motor winding to be qualified for the next round of competitions (10) on first terminal (3) and second terminal (4), in the motor is continuous, long-term operation in-process, often can appear that operating current is too big or nut (9) that motor vibration anomaly caused are not hard up, and wiring department contact failure scheduling problem, cause first terminal (3) or second terminal (4) department serious generate heat, melt even take place when the phenomenon of burning of starting a fire. Therefore, the temperature of the first binding post (3) and/or the second binding post (4) is monitored in real time, and effective early warning and alarming can be carried out on the heating faults.
Furthermore, the current transformer (1) and the conductor sheet (2) are cast into a single-phase or three-phase integral structure by adopting an insulating material (25). In order to ensure compact structure, space saving, good insulation, convenient installation and maintenance and the like, the current transformer (1), the conductor sheet (2), the voltage transformer (17) and even the temperature sensor (17) can be cast into a whole by adopting an insulating material (25). The structure can be made into a single-phase integrated structure or a three-phase integrated structure according to the requirement, and the integral integration level is further improved.
Furthermore, the outlet interface (15) is a terminal strip, is installed in the motor junction box (11), and leads out the outlet interface (15) to be a wiring socket (26), and is installed on the outer surface of the motor junction box (11), or is led out to be a wiring harness plug (27). When an intelligent motor online monitoring device, an internet of things terminal or other long-term or permanent motor monitoring, early warning or protecting equipment and the like need to be installed, the intelligent motor online monitoring device is generally installed in a motor junction box (11), and motor operation parameters can be directly obtained through a terminal strip of an outlet interface (15); when portable or temporary monitoring equipment needs to be installed, connection can be directly carried out through a wiring socket (26) or a wiring harness plug (27). The motor running parameters can be conveniently acquired at any time, plug and play is realized, and the motor can be installed or detached without stopping. The wiring socket (26) can adopt a wire pressing terminal and the like, and the wiring harness plug (27) can adopt an aviation plug and the like, and has the functions of water resistance, moisture resistance, dust resistance and the like.
Compared with the prior art, the utility model has the advantages of as follows:
1) the motor junction box and the internal structure, the current transformer and the voltage transformer are improved in adaptability, a plurality of online monitoring sensors of operating parameters are pre-installed in the motor junction box by utilizing the wiring terminal, the internal space of the motor junction box is fully utilized, and the integration, miniaturization and modularization of voltage, current and temperature sensors required by intelligent online monitoring of the motor, compatibility, convenience, flexibility, reliability, safety and the like are realized; the motor has the advantages of simple structure, low cost, small volume, convenient use and the like, and can be widely applied to various types of motors.
2) The sensor of the internet of things is integrated and preassembled in the motor junction box, so that the structure of the motor is not changed, and any other influence on the motor is not caused; the intelligent motor online monitoring Internet of things terminal can be directly installed in the motor junction box by adopting the terminal block, the installation and wiring are simple and convenient, the integration level is high, the wiring error is effectively avoided, the operation reliability of the monitoring terminal is improved, and the motor intellectualization is favorably realized; meanwhile, the dustproof and waterproof protection levels of the sensor and the intelligent motor online monitoring internet of things terminal are greatly improved.
3) Adopt socket or pencil interface design in the motor terminal box outside, provide power and sensor signal, for realizing plug-and-play and the portability of the online monitoring of intelligent motor operation data provide important hardware support, work load and cost when also having simplified other equipment simultaneously and testing the motor or utilizing motor data greatly, plug-and-play, need not to have a power failure and install the sensor alone, make motor monitoring and experiment have more intellectuality, flexibility and security.
4) Set up temperature sensor on the motor terminal, can real-time supervision terminal's temperature variation to carry out early warning or warning when unusual, prevent effectively that the terminal bolt is not hard up or contact failure that generates heat even trouble such as burning that leads to.
5) The current-limiting resistor box adopts a buckle type design, so that an operator can adjust the resistance value of the current-limiting resistor according to the voltage grade, the current-limiting resistor can be put in or taken out at any time, and the installation and the disassembly are convenient; and the protective cover is of a transparent structure, so that an operator can conveniently check the current-limiting resistance value.
Drawings
FIG. 1: motor junction box structure and sensor installation sketch map.
In the figure: 1-current transformer, 2-conductor sheet, 3-first terminal, 4-second terminal, 5-motor terminal base, 6-power inlet wire, 7-connecting sheet, 8-winding inlet wire, 9-nut, 10-winding outlet wire, 11-motor terminal box, 12-current transformer output wire, 13-conductor sheet outlet wire, 14-neutral wire, 15-outlet wire interface, 16-inlet wire hole, 17-voltage transformer, 18-voltage transformer first input end, 19-voltage transformer second input end, 20-voltage transformer output wire, 21-current limiting resistor box, 22-current limiting resistor, 23-temperature sensor, 24-temperature sensor output wire, 25-insulating material, 26-connecting socket, 26-current limiting socket, 27-harness plug.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings:
fig. 1 is a schematic view of a motor junction box structure and sensor installation. In fig. 1, the intelligent motor junction box with the pre-installed sensor comprises a current transformer (1), a conductor sheet (2), a first terminal (3), a second terminal (4), a motor junction box (5), a power supply incoming line (6), a connecting sheet (7), a winding incoming line (8), a nut (9), a winding outgoing line (10), a motor junction box (11), a current transformer output line (12), a conductor sheet outgoing line (13), a neutral outgoing line (14), an outgoing line interface (15), an incoming line hole (16), a voltage transformer (17), a voltage transformer first input end (18), a voltage transformer second input end (19), a voltage transformer output line (20), a current limiting resistor box (21), a current limiting resistor (22), a temperature sensor (23), a temperature sensor output line (24), an insulating material (25), a junction socket (26), A wire harness plug (27).
In fig. 1, a current transformer (1) and a conductor sheet (2) are integrated into a whole, an insulating layer is arranged in the middle of the current transformer, the whole is of a flat cake-shaped hollow structure, and a first wiring terminal (3) penetrates through a through hole in the middle of the current transformer (1) and the conductor sheet (2); the inner diameter of the current transformer (1) is slightly larger than the diameters of the first binding post (3) and the second binding post (4). The first binding post (3) and the second binding post (4) are respectively fixed on two sides of the motor binding post base (5); the motor wire holder (5) can directly cast the first wiring terminal (3) and the second wiring terminal (4) in fixed positions during manufacturing and forming.
In the figure 1, a voltage transformer (17) is positioned on the left side of a current transformer (1), and the current transformer (1), a conductor sheet (2), the voltage transformer (17) and a current-limiting resistance box (21) are cast into a whole by adopting an insulating material (25) to be made into a single-phase integrated structure. A first input end (18) of a voltage transformer of the voltage transformer (17) is connected with the conductor sheet (2) through a current-limiting resistor (22) clamped in a current-limiting resistor box (21), and a second input end (19) of the voltage transformer is connected with the central line of the power inlet wire (6). The current-limiting resistor box (21) is designed to be clamped, so that the current-limiting resistor (22) can be put in or taken out at any time, and replacement is convenient.
In fig. 1, a current signal obtained by a current transformer (1) is led out through a current transformer output line (12), a voltage signal obtained by a voltage transformer (17) is led out through a voltage transformer output line (20), a voltage obtained by a conductor sheet (2) is led out through a conductor sheet outgoing line (13), a neutral line outgoing line (14) is connected to a neutral line of a power supply incoming line (6), and the neutral line outgoing line are gathered to an outgoing line interface (15) by adopting a shielding line for use by other equipment. The conductor strip lead wire (13) and the middle wire lead wire (14) can provide voltage signals for external monitoring equipment, and can simultaneously provide power supply.
In fig. 1, a temperature sensor (23) is mounted on a first binding post (3), a temperature signal obtained by the temperature sensor (23) is led out through a temperature sensor output line (24), and is collected to an outlet interface (15) by adopting a shielding line for use by other equipment.
In fig. 1, a first terminal (3), a second terminal (4) and a motor terminal block (5) are packaged in a motor terminal box (11); the base of the motor wiring seat (5) is not too high and is designed to be matched with the heights of the first wiring terminal (3) and the second wiring terminal (4) and the height of the motor wiring box (11). The power supply inlet wire (6) is led into the motor from a wire inlet hole (16) on the motor junction box (11). The first binding post (3) is sequentially provided with a power supply inlet wire (6), a current transformer (1), a conductor sheet (2), a connecting sheet (7) and a motor winding inlet wire (8) from top to bottom, and the middle of the first binding post is fixedly compressed by a nut (9); the second binding post (4) is sequentially provided with a connecting sheet (7) and a motor winding outlet wire (10) from top to bottom, and the middle part of the second binding post is fixedly compressed by a nut (9).
In fig. 1, the outlet port (15) is a terminal strip, is mounted on the motor wire holder (5), and leads out the outlet port (15) to a wire socket (26) fixed on the outer surface of the motor junction box (11), and simultaneously leads out a wiring harness plug (27) to the outside of the motor junction box (11) through the wire inlet hole (16). When an intelligent motor online monitoring device, an internet of things terminal, or other long-term or permanent motor monitoring, early warning or protecting equipment and the like need to be installed in the motor junction box (11), the motor operation parameters can be directly obtained through the terminal strip of the wire outlet interface (15); when portable or temporary monitoring equipment needs to be installed, connection can be directly carried out through a wiring socket (26) or a wiring harness plug (27). The motor running parameters can be conveniently acquired at any time, plug and play is realized, and the motor can be installed or detached without stopping. The wiring socket (26) can adopt a wire pressing terminal and the like, and the wiring harness plug (27) can adopt an aviation plug and the like, and has the functions of water resistance, moisture resistance, dust resistance and the like.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. Intelligent motor terminal box with prepackage type sensor, its characterized in that: the device comprises a current transformer (1), a conductor sheet (2), a first binding post (3), a second binding post (4), a motor binding post base (5), a power supply inlet wire (6), a connecting sheet (7), a winding inlet wire (8), a nut (9), a winding outlet wire (10), a motor junction box (11), a current transformer output wire (12), a conductor sheet outgoing wire (13), a neutral line outgoing wire (14), an outlet interface (15) and a wire inlet hole (16);
the current transformer (1) and the conductor sheet (2) are integrated, an insulating layer is arranged in the middle of the current transformer (1), and the first binding post (3) penetrates through a through hole in the middle of the current transformer (1) and the conductor sheet (2);
the first binding post (3) and the second binding post (4) are respectively fixed on two sides of the motor binding post base (5);
the first binding post (3) is sequentially provided with a power supply inlet wire (6), a current transformer (1), a conductor sheet (2), a connecting sheet (7) and a motor winding inlet wire (8) from top to bottom, and the middle of the first binding post is fixedly compressed by a nut (9);
the second binding post (4) is sequentially provided with a connecting sheet (7) and a motor winding outgoing line (10) from top to bottom, and the middle of the connecting sheet and the motor winding outgoing line are fixedly compressed by a nut (9);
the first binding post (3), the second binding post (4) and the motor wire holder (5) are packaged in a motor junction box (11);
a current signal obtained by the current transformer (1) is led out through a current transformer output line (12), a voltage obtained by the conductor sheet (2) is led out through a conductor sheet outgoing line (13), and a neutral line outgoing line (14) is connected to a neutral line of a power supply incoming line (6);
the current transformer output line (12), the conductor sheet outgoing line (13) and the middle line outgoing line (14) are all shielded wires and are gathered to an outgoing line interface (15) for other equipment to use;
the power supply inlet wire (6) is led into the motor from a wire inlet hole (16) on the motor junction box (11).
2. The smart motor junction box with pre-assembled sensors of claim 1, wherein: the device comprises a voltage transformer (17), a first input end (18) of the voltage transformer, a second input end (19) of the voltage transformer, a voltage transformer output line (20), a current-limiting resistor box (21) and a current-limiting resistor (22);
a voltage transformer (17) is installed in a motor junction box (11), a first input end (18) of the voltage transformer (17) is connected with a conductor sheet (2) through a current-limiting resistor (22) clamped in a current-limiting resistor box (21), a second input end (19) of the voltage transformer is connected with a central line of a power inlet wire (6), a voltage signal acquired by the voltage transformer (17) is led out through a voltage transformer output line (20), and is collected to an outlet wire interface (15) by adopting a shielding line for other equipment to use.
3. The smart motor junction box with pre-assembled sensors of claim 1, wherein: the temperature measurement device comprises a temperature sensor (23) and a temperature sensor output line (24), wherein the temperature sensor (23) is installed in a motor junction box (11) and is used for measuring the temperature of a first wiring terminal (3) and/or a second wiring terminal (4), a temperature signal acquired by the temperature sensor (23) is led out through the temperature sensor output line (24), and a shielding line is collected to an outlet interface (15) for other equipment.
4. The smart motor junction box with pre-assembled sensors of claim 1, wherein: the current transformer (1) and the conductor sheet (2) are cast into a single-phase or three-phase integral structure by adopting an insulating material (25).
5. The smart motor junction box with pre-assembled sensors of claim 1, wherein: the outlet interface (15) is a terminal strip, is arranged in the motor junction box (11), and leads out the outlet interface (15) to be a junction socket (26) which is arranged on the outer surface of the motor junction box (11) or a wiring harness plug (27).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921490395.2U CN210246491U (en) | 2019-09-09 | 2019-09-09 | Intelligent motor junction box with pre-installed sensor |
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| CN201921490395.2U CN210246491U (en) | 2019-09-09 | 2019-09-09 | Intelligent motor junction box with pre-installed sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429750A (en) * | 2019-09-09 | 2019-11-08 | 周封 | The intelligent electric machine terminal box of integrated prepackage type internet of things sensors |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429750A (en) * | 2019-09-09 | 2019-11-08 | 周封 | The intelligent electric machine terminal box of integrated prepackage type internet of things sensors |
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