阅读说明：本技术 一种智能化电机数据记录器 (Intelligent motor data recorder ) 是由 牛根艺 赵跃东 刘宇航 张�浩 刘平顺 周良 于 2019-10-28 设计创作，主要内容包括：本发明属于电机运行监控技术领域,具体涉及一种智能化电机数据记录器,包括外壳主体、外壳固定板以及设置于外壳主体内的用于对电机进行数据记录的功能板卡；外壳固定板与外壳主体可拆卸连接；所述功能板卡包括由右至左依次排列的供电电源板卡、振动检测板卡、主控板卡以及温度与电流检测板卡,各功能板卡之间可拆卸连接。本发明能够优化记录器的板卡布局和结构布局,能够避免现有的发电机组运行数据记录器较为复杂庞大的问题,本发明可以提高记录器的可靠性,减小记录器的体积,节省空间和成本,方便安装与维护。(The invention belongs to the technical field of motor operation monitoring, and particularly relates to an intelligent motor data recorder which comprises a shell main body, a shell fixing plate and a function board card, wherein the function board card is arranged in the shell main body and is used for recording data of a motor; the shell fixing plate is detachably connected with the shell main body; the function board card comprises a power supply board card, a vibration detection board card, a master control board card and a temperature and current detection board card which are sequentially arranged from right to left, and the function board cards are detachably connected. The invention can optimize the board card layout and the structure layout of the recorder, can avoid the problem that the existing generator set operation data recorder is complicated and huge, can improve the reliability of the recorder, reduce the volume of the recorder, save the space and the cost, and is convenient to install and maintain.)

1. An intelligent motor data recorder is characterized by comprising a shell main body, a shell fixing plate and a functional board card which is arranged in the shell main body and used for recording data of a motor; the shell fixing plate is detachably connected with the shell main body;

the functional board cards comprise a power supply board card, a vibration detection board card, a master control board card and a temperature and current detection board card which are sequentially connected, and the functional board cards are detachably connected;

an external power supply interface terminal is arranged at one end of the power supply board card, an input filter circuit, a power supply conversion module and an isolation circuit module are arranged on the power supply board card, the external power supply interface terminal is connected with the input end of the power supply conversion module, the output end of the power supply conversion module is connected with the input end of the input filter circuit, and the output end of the input filter circuit is connected with the input end of the isolation circuit module;

the main control board card is provided with a peripheral circuit module, a computing chip, a Wi-Fi module and an NB module, wherein the peripheral circuit module comprises a clock circuit, a 5V power supply conversion 3.3V circuit and an RS485 module; the output end of the clock circuit and the output end of the 5V power supply conversion 3.3V circuit are respectively connected with the input end of the computing chip; the output end of the computing chip is respectively connected with the input ends of the Wi-Fi module, the NB module and the RS485 module;

a vibration detection circuit interface terminal is arranged at one end of the vibration detection board card, and a vibration detection circuit module, a first RC filter circuit, a first optical coupling isolation circuit and a first analog-to-digital conversion chip are arranged on the vibration detection board card; the vibration detection circuit interface terminal is connected with the input end of the vibration detection circuit module, the output end of the vibration detection circuit module is connected with the input end of a first RC filter circuit, the output end of the first RC filter circuit is connected with the input end of a first optical coupling isolation circuit, the output end of the first optical coupling isolation circuit is connected with the input end of a first analog-to-digital conversion chip, and the output end of the first analog-to-digital conversion chip is connected with the input end of a calculation chip;

one end of the temperature and current detection board card is provided with a temperature and current detection circuit interface terminal; the temperature and current detection board card is provided with a temperature detection circuit and a current detection circuit; the temperature detection circuit comprises a motor temperature detection component, a temperature detection circuit module, a second RC filter circuit, a second optical coupling isolation circuit and a second analog-to-digital conversion chip; the current detection circuit module comprises a motor current sensor, a current detection circuit module, a resistance sampling circuit, a voltage following circuit, a third RC filter circuit and a third analog-to-digital conversion chip;

the output end of an interface terminal of the temperature and current detection circuit is respectively connected with the input end of a motor temperature detection component and the input end of a motor current sensor, the output end of the motor temperature detection component is connected with the input end of the temperature detection circuit module, the output end of the temperature detection circuit module is connected with the input end of a second RC filter circuit, the output end of the second RC filter circuit is connected with the input end of a second optical coupling isolation circuit, the output end of the second optical coupling isolation circuit is connected with the input end of a second analog-to-digital conversion chip, and the output end of the second analog-to-digital conversion chip is connected with the;

the output end of the motor current sensor is connected with the input end of the current detection circuit module, the output end of the current detection circuit module is connected with the input end of the resistance sampling circuit, the output end of the resistance sampling circuit is connected with the input end of the voltage following circuit, the output end of the voltage following circuit is connected with the input end of a third RC filter circuit, the output end of the third RC filter circuit is connected with the input end of a third analog-to-digital conversion chip, and the output end of the third analog-to-digital conversion chip is connected with the input end of the calculation chip;

a power supply board card fixing slot, a vibration detection board card fixing slot, a main control board card fixing slot and a temperature and current detection board card fixing slot are sequentially arranged on the inner side of the shell main body;

three terminal interfaces are arranged at the front end of the shell main body corresponding to the positions of the functional boards, and the external power supply interface terminal, the vibration detection circuit interface terminal and the temperature and current detection circuit interface terminal respectively penetrate through the three terminal interfaces and extend out of the shell main body.

2. The intelligent motor data recorder according to claim 1, wherein the power supply board card has a first hard connection terminal at one end and is connected to the vibration detection board card through a pin, a second hard connection terminal at one end and is connected to the main control board card through a pin, and a third hard connection terminal at one end and is connected to the current detection board card through a pin and a temperature.

3. The intelligent motor data recorder according to claim 1, wherein the inner side of the housing fixing plate is provided with a locking claw corresponding to each fixing locking groove.

4. The intelligent data recorder according to claim 1, wherein the housing body has first bolt holes at four corners of the rear side, the housing fixing plate has second bolt holes corresponding to the first bolt holes of the housing body, and the housing fixing plate is mounted at the rear side of the housing body by inserting fixing bolts into the first bolt holes and the second bolt holes.

5. The intelligent motor data recorder according to claim 1, wherein one side of the housing body is provided with a heat dissipation hole for dissipating heat of the switching power supply on the power supply board card; the front end of the shell main body is also provided with an indicating port for inserting a vibration detection board card state indicating lamp; the top of the shell main body is provided with a data antenna interface, and the bottom end of the data antenna penetrates into the shell main body through the data antenna interface and is connected with the main control board card.

6. The intelligent motor data recorder according to claim 1, wherein the outer end surface of the housing fixing plate is horizontally provided with a locking groove penetrating through the housing fixing plate, and the intelligent motor data recorder can be installed in the motor junction box by the locking of the locking groove and a guide rail arranged in the motor junction box.

Technical Field

The invention belongs to the technical field of motor operation monitoring, and particularly relates to an intelligent motor data recorder.

Background

The motor is very widely used, most enterprises mainly measure and display the running state of the motor through the DCS in the running process of the motor, but the DCS is complex, the running cost is high, and digital quantity control and sequential control cannot be synchronously carried out, so that once the motor breaks down, the root cause of the problem is not easy to find, and meanwhile, the time and the period for processing the problem are prolonged.

In order to master the running state of the motor in real time, avoid and reduce accidents, bring the maximum benefit of the motor into play, achieve scientific management and predictive maintenance, the running state of the motor needs to be monitored in real time, and the healthy and efficient running of the motor is ensured. Chinese patent with patent number CN204989863U discloses a generating set operation data recorder, through set up cyclic data buffer module, initiative monitoring comparison module, record module in the shell body, can realize the problem of redundant data volume, can provide the protection for the operation data that record when the generating set takes place to break down immediately, but above-mentioned generating set operation data recorder structure is complicated, and equipment is whole comparatively huge, is not convenient for carry out the dismouting between the motor of difference. Therefore, an intelligent motor data recorder which is small in size and convenient to install and maintain needs to be designed.

Disclosure of Invention

The invention aims to provide an intelligent motor data recorder which can optimize the board card layout and the structural layout of the recorder and can avoid the problem that the existing generator set operation data recorder is complex and huge.

In order to achieve the purpose, the invention designs an intelligent motor data recorder which comprises a shell main body, a shell fixing plate and a functional board card, wherein the functional board card is arranged in the shell main body and is used for recording data of a motor; the shell fixing plate is detachably connected with the shell main body;

the functional board cards comprise a power supply board card, a vibration detection board card, a master control board card and a temperature and current detection board card which are sequentially connected, and the functional board cards are detachably connected;

an external power supply interface terminal is arranged at one end of the power supply board card, an input filter circuit, a power supply conversion module and an isolation circuit module are arranged on the power supply board card, the external power supply interface terminal is connected with the input end of the power supply conversion module, the output end of the power supply conversion module is connected with the input end of the input filter circuit, and the output end of the input filter circuit is connected with the input end of the isolation circuit module;

the main control board card is provided with a peripheral circuit module, a computing chip, a Wi-Fi module and an NB module, wherein the peripheral circuit module comprises a clock circuit, a 5V power supply conversion 3.3V circuit and an RS485 module; the output end of the clock circuit and the output end of the 5V power supply conversion 3.3V circuit are respectively connected with the input end of the computing chip; the output end of the computing chip is respectively connected with the input ends of the Wi-Fi module, the NB module and the RS485 module;

a vibration detection circuit interface terminal is arranged at one end of the vibration detection board card, and a vibration detection circuit module, a first RC filter circuit, a first optical coupling isolation circuit and a first analog-to-digital conversion chip are arranged on the vibration detection board card; the vibration detection circuit interface terminal is connected with the input end of the vibration detection circuit module, the output end of the vibration detection circuit module is connected with the input end of a first RC filter circuit, the output end of the first RC filter circuit is connected with the input end of a first optical coupling isolation circuit, the output end of the first optical coupling isolation circuit is connected with the input end of a first analog-to-digital conversion chip, and the output end of the first analog-to-digital conversion chip is connected with the input end of a calculation chip;

one end of the temperature and current detection board card is provided with a temperature and current detection circuit interface terminal; the temperature and current detection board card is provided with a temperature detection circuit and a current detection circuit; the temperature detection circuit comprises a motor temperature detection component, a temperature detection circuit module, a second RC filter circuit, a second optical coupling isolation circuit and a second analog-to-digital conversion chip; the current detection circuit module comprises a motor current sensor, a current detection circuit module, a resistance sampling circuit, a voltage following circuit, a third RC filter circuit and a third analog-to-digital conversion chip;

the output end of an interface terminal of the temperature and current detection circuit is respectively connected with the input end of a motor temperature detection component and the input end of a motor current sensor, the output end of the motor temperature detection component is connected with the input end of the temperature detection circuit module, the output end of the temperature detection circuit module is connected with the input end of a second RC filter circuit, the output end of the second RC filter circuit is connected with the input end of a second optical coupling isolation circuit, the output end of the second optical coupling isolation circuit is connected with the input end of a second analog-to-digital conversion chip, and the output end of the second analog-to-digital conversion chip is connected with the;

the output end of the motor current sensor is connected with the input end of the current detection circuit module, the output end of the current detection circuit module is connected with the input end of the resistance sampling circuit, the output end of the resistance sampling circuit is connected with the input end of the voltage following circuit, the output end of the voltage following circuit is connected with the input end of a third RC filter circuit, the output end of the third RC filter circuit is connected with the input end of a third analog-to-digital conversion chip, and the output end of the third analog-to-digital conversion chip is connected with the input end of the calculation chip;

a power supply board card fixing slot, a vibration detection board card fixing slot, a main control board card fixing slot and a temperature and current detection board card fixing slot are sequentially arranged on the inner side of the shell main body;

three terminal interfaces are arranged at the front end of the shell main body corresponding to the positions of the functional boards, and the external power supply interface terminal, the vibration detection circuit interface terminal and the temperature and current detection circuit interface terminal respectively penetrate through the three terminal interfaces and extend out of the shell main body.

Further, the connection mode among the functional board cards is specifically as follows: power supply integrated circuit board one end is equipped with first hard binding post and is connected through contact pin and vibration detection board card, and vibration detection integrated circuit board one end is equipped with the hard binding post of second and is connected through contact pin and main control integrated circuit board, and main control integrated circuit board one end is equipped with the hard binding post of third and is connected through contact pin and temperature and current detection board card.

Furthermore, the positions, corresponding to the fixing clamping grooves, of the inner side of the shell fixing plate are provided with clamping jaws, the clamping jaws can be clamped with the functional board cards, and the clamping jaws can be provided with a plurality of clamping jaws in the vertical direction according to requirements.

Furthermore, shell body rear side four corners department all is equipped with first bolt hole, and the position that the shell fixed plate corresponds the first bolt hole of shell body is equipped with the second bolt hole, through wearing to establish fixing bolt in first bolt hole and second bolt hole, installs the shell fixed plate in shell body rear side.

Furthermore, one side of the shell main body is provided with a heat dissipation hole for heat dissipation of the switching power supply on the power supply board card; the front end of the shell main body is also provided with an indicating port for inserting a vibration detection board card state indicating lamp; the top of the shell main body is provided with a data antenna interface, and the bottom end of the data antenna penetrates into the shell main body through the data antenna interface and is connected with the main control board card.

Further, the outer terminal surface of shell fixed plate sets up the joint groove that runs through the shell fixed plate along the horizontal direction, through the cooperation between the guide rail that joint groove and motor terminal box set up, can install intelligent motor data recorder in motor terminal box.

The invention has the beneficial effects that:

1. in order to avoid the problem that the overall volume of the recorder is overlarge due to the fact that one circuit board is overlarge in volume, a reasonable design method for designing circuit board cards in a partitioning mode is adopted, the circuit board cards are divided into a power supply board card, a temperature and current detection board card, a vibration detection board card and a main control board card, and each board card is a board card with a relatively independent function; the design method greatly reduces the overall volume of the circuit board card.

2. The power supply board card, the temperature and current detection board card, the vibration detection board card and the main control board card are arranged in the vertical direction and are all fixed in the clamping groove of the shell main body; the integrated circuit board is as close as possible to the integrated circuit board on the premise of meeting the safety distance and the creepage distance, and the design space is effectively saved.

3. The external wiring terminal of the board card is positioned at the front end of the recorder, the terminal is a plug-in terminal, a special tool is not needed for wiring, wiring and maintenance are convenient, and the board card is fixed through the clamping groove of the shell and does not need to be fixed by screws; the data transmission antenna interface is positioned at the top of the recorder and can be led out of the motor junction box through an antenna.

4. The detachable structure of the invention can improve the reliability of the recorder, reduce the volume of the recorder, save space and cost and facilitate installation and maintenance.

Drawings

FIG. 1 is a perspective view of an intelligent motor data recorder according to embodiment 1;

FIG. 2 is an exploded view of the housing body and housing retainer plate with the internal board removed;

FIG. 3 is a diagram showing the connection relationship between the board cards inside the housing main body;

FIG. 4 is a rear view of FIG. 3;

FIG. 5 is a schematic block circuit diagram of the power supply board card;

fig. 6 is a schematic block diagram of the circuits of the main control board, the vibration detection board, and the temperature and current detection board.

Detailed Description

The invention will be described in further detail below with reference to the drawings, but the scope of the invention is not limited thereto.