CN212305028U

CN212305028U - Monitoring device for motor coil

Info

Publication number: CN212305028U
Application number: CN202021218016.7U
Authority: CN
Inventors: 胡安正; 王小东; 雷霖; 蔡永忠
Original assignee: Hubei Kelaiwei Electromechanical Technology Co Ltd; Hubei University of Arts and Science
Current assignee: Hubei Kelaiwei Electromechanical Technology Co Ltd; Hubei University of Arts and Science
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-01-05
Anticipated expiration: 2030-06-24

Abstract

The utility model discloses a monitoring devices of electric machine coil, including sensor, electric sliding ring, waterproof box and circuit board, waterproof box is fixed on the casing of motor, the circuit board is installed waterproof box's inside, the sensor is buried underground in the coil of the rotor of motor, electric sliding ring includes sliding ring stator and sliding ring rotor, the sliding ring stator with sliding ring rotor is electrically conducted and is connected, the sliding ring stator is fixed on the motor, sliding ring rotor cover is established in the pivot of the rotor of motor, the sliding ring rotor pass through the electromagnetic shield line with the sensor links to each other, the sliding ring stator pass through the electromagnetic shield line with the circuit board links to each other. A monitoring devices of electric machine coil can real-time supervision motor inner rotor coil temperature and report to the police when the temperature surpasss preset threshold value, avoided the inside high temperature of motor greatly and burnt out the motor, improved the life of motor.

Description

Monitoring device for motor coil

Technical Field

The utility model relates to the technical field of electric machines, in particular to electric machine coil's monitoring devices.

Background

Most motors have no protective measures, and the motors continuously work in abnormal states regardless of the working current and the working voltage, so that the motors are easily burnt. The current more-adopted use mode is that a voltage stabilizing device is arranged for the motor, but the problem of motor abnormality caused by external power supply abnormality can be solved to a certain extent, the temperature of a rotor coil in the motor cannot be monitored in real time, and the phenomenon that the motor is burnt due to overhigh temperature of the motor easily occurs.

Based on this, there is an urgent need for a device that can monitor the temperature of the rotor coil inside the motor in real time, can check the monitoring data in real time and can give an alarm when the temperature of the rotor coil inside the motor exceeds a preset threshold value.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a monitoring devices of electric machine coil that can carry out real-time supervision to the inside temperature of electric machine rotor coil is provided.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a monitoring devices of motor coil, includes sensor, electric slip ring, waterproof box and circuit board, waterproof box is fixed on the casing of motor, the circuit board is installed the inside of waterproof box, the sensor is buried underground in the coil of the rotor of motor, electric slip ring includes slip ring stator and slip ring rotor, the slip ring stator with the slip ring rotor is electrically conductive to be connected, the slip ring stator is fixed on the motor, slip ring rotor cover is established in the pivot of the rotor of motor, the slip ring rotor pass through the electromagnetic shield line with the sensor links to each other, the slip ring stator pass through the electromagnetic shield line with the circuit board links to each other.

Furthermore, the waterproof box also comprises a display and an audible and visual alarm which are fixed at the top of the waterproof box, and the display and the audible and visual alarm are connected with the circuit board.

Further, the sensor is a temperature sensor.

Furthermore, a transparent sliding cover is slidably mounted on the outer surface of the top of the waterproof box, the transparent sliding cover slides to cover the display in a closed state, and the transparent sliding cover slides to enable the display to be exposed in an open state.

Further, waterproof box includes upper end open-ended box body and fixes through the bolt the upper end of box body covers the upper end open-ended lid of box body, the box body with the casing of motor is the integrated into one piece structure.

Furthermore, it has the hole of stepping down to open on the lid, the display is followed expose in the hole of stepping down, the surface of lid is located the both sides in the hole of stepping down are equipped with the boss respectively, each the medial surface of boss has opened the spout respectively, and a transparent sliding closure slides and inserts and establish respectively in the spout on the boss, under the closed condition, transparent sliding closure slides to covering the display, under the open mode, transparent sliding closure slides to making the display shows out.

Furthermore, the upper end of the waterproof box is provided with a circle of edge platform protruding outwards, and the audible and visual alarm is fixed on the edge platform.

Further, the circuit board comprises a power module and a single-chip microprocessor.

Furthermore, the power module comprises a transformer and a rectifier, and the power supply of the power module is an alternating current power supply externally connected to the motor.

Further, the display is provided with a button.

The beneficial effects of the utility model are embodied in:

the utility model discloses because in electric motor rotor coil around advancing temperature sensor, the sensor passes through the electromagnetic shield line and is connected with the electric slip ring of installing at the rotation epaxial, the outside wiring of electric slip ring is connected with the circuit board of arranging in waterproof box again, the circuit board is connected with external display and audible-visual annunciator, thereby realized can real-time supervision electric motor inner rotor coil temperature, and audible-visual annunciator reports to the police when the temperature surpasss preset threshold value, and then avoided the phenomenon that the inside high temperature of motor burns out the motor greatly, the service life of motor has been improved.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a top view of a monitoring device for an electric machine coil according to an embodiment of the present invention;

fig. 2 is a half sectional view of a monitoring device for a motor coil according to an embodiment of the present invention;

fig. 3 is an isometric view of a monitoring device for an electric machine coil according to an embodiment of the present invention;

fig. 4 is an enlarged view of a portion a in fig. 3.

Description of reference numerals:

1-motor shell, 2-motor rotor, 3-waterproof box, 31-box cover, 32-transparent sliding cover, 33-sliding groove, 34-edge table, 4-sensor, 5-electric sliding ring, 51-sliding ring stator, 52-sliding ring rotor, 6-circuit board, 7-display and 8-audible and visual alarm.

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. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. 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.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, "a plurality" means two or more. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

See fig. 1-4.

The utility model relates to a monitoring devices of electric machine coil, including sensor 4, electric sliding ring 5, waterproof box 3 and circuit board 6, waterproof box 3 is fixed on the casing of motor, circuit board 6 is installed waterproof box 3's inside, sensor 4 is buried underground in the coil of the rotor of motor, electric sliding ring 5 includes sliding ring stator 51 and sliding ring rotor 52, sliding ring stator 51 with sliding ring rotor 52 electrically conducts the connection, sliding ring stator 51 fixes on the motor, sliding ring rotor 52 cover is established in the pivot of the rotor of motor, sliding ring rotor 52 pass through the electromagnetic shield line with sensor 4 links to each other, sliding ring stator 51 pass through the electromagnetic shield line with circuit board 6 links to each other.

This embodiment winds into temperature sensor in electric motor rotor coil, the sensor passes through the electromagnetic shield line and is connected with the slip ring rotor of installing in the pivot, the slip ring stator is connected with the circuit board of arranging in waterproof box again, the circuit board is connected with external display and audible-visual annunciator, thereby realized can real-time supervision electric motor inner rotor coil temperature, and show on the display and when the temperature surpasss and predetermine threshold value audible-visual annunciator report to the police, and then avoided the phenomenon that the inside high temperature of motor burns out the motor greatly, the service life of motor has been improved.

In one embodiment, the waterproof box further comprises a display 7 and an audible and visual alarm 8 which are fixed on the top of the waterproof box 3, and the display 7 and the audible and visual alarm 8 are connected with the circuit board 6. The display and the audible and visual alarm can be controlled by the circuit board by connecting the display and the audible and visual alarm with the circuit board.

Preferably, the sensor 4 is a temperature sensor. Through the temperature sensor, the temperature of the current rotor coil can be rapidly and effectively acquired.

In an embodiment, a transparent sliding cover 32 is slidably installed on an outer surface of the top of the waterproof box 3, in a closed state, the transparent sliding cover 32 slides to cover the display 7, and in an open state, the transparent sliding cover 32 slides to expose the display 7. Through being equipped with transparent sliding closure can effectually shelter from dust and water stain and fall to the display, can keep the display not polluted for a long time.

In one embodiment, the waterproof box 3 includes a box body with an upper opening and a box cover 31 fixed on the upper end of the box body by bolts and covering the upper opening of the box body, and the box body and the casing of the motor are of an integrally formed structure. Can be better dustproof and waterproof through box body and motor integral type design.

In an embodiment, the box cover 31 is provided with a yielding hole, the display 7 is exposed from the yielding hole, the outer surface of the box cover 31 is located on two sides of the yielding hole and is provided with bosses respectively, the inner side surface of each boss is provided with a sliding groove 33 respectively, a transparent sliding cover 32 is inserted into each sliding groove 33 on each boss in a sliding manner, in a closed state, the transparent sliding cover 32 slides to cover the display 7, and in an open state, the transparent sliding cover 32 slides to enable the display 7 to be exposed. The displayer can be better watched through the abdicating hole formed in the box cover, the boss with the sliding groove is arranged on the box cover and is matched with the transparent sliding cover, and the transparent sliding cover can slide back and forth in the sliding groove to cover or expose the displayer. The design is convenient to manufacture and simple in structure.

Preferably, the upper end of the waterproof box 3 is provided with a circle of edge platform 34 protruding outwards, and the audible and visual alarm 8 is fixed on the edge platform 34. The audible and visual alarm is more easily noticed when in work by fixing the audible and visual alarm on the edge table.

In one embodiment, the circuit board 6 includes a power module and a single-chip microprocessor.

In the circuit board of the embodiment, the power supply module not only supplies power for the single chip microcomputer microprocessor, but also serves as a power supply for the display, the audible and visual alarm, the electric slip ring and the temperature sensor, the single chip microcomputer microprocessor receives data transmitted by the temperature sensor and compares the data with a preset abnormal threshold value, whether the motor is abnormal or not is confirmed according to a comparison result, and if the motor is abnormal, an alarm signal is sent to the audible and visual alarm and displayed on the display.

Preferably, the power module comprises a transformer and a rectifier, and the power supply of the power module is an alternating current power supply externally connected to the motor. The external power supply voltage is rectified and reduced through the power supply module to be used as a power supply of the circuit board, the display, the audible and visual alarm, the electric slip ring and the temperature sensor, and power is supplied to the circuit board, the display, the audible and visual alarm, the electric slip ring and the temperature sensor.

Preferably, the display 7 is provided with buttons. Through the buttons on the display, the user can switch the screen menu and adjust the preset abnormal threshold through the buttons.

It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the present invention, and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application.

Claims

1. The utility model provides a monitoring devices of motor coil, its characterized in that includes sensor, electric slip ring, waterproof box and circuit board, waterproof box fixes on the casing of motor, the circuit board is installed the inside of waterproof box, the sensor is buried underground in the coil of the rotor of motor, electric slip ring includes slip ring stator and slip ring rotor, the slip ring stator with slip ring rotor is electrically conductive to be connected, the slip ring stator is fixed on the motor, slip ring rotor cover is established in the pivot of the rotor of motor, slip ring rotor pass through the electromagnetic shield line with the sensor links to each other, slip ring stator pass through the electromagnetic shield line with the circuit board links to each other.

2. The motor coil monitoring device as claimed in claim 1, further comprising a display and an audible and visual alarm fixed on the top of the waterproof box, wherein the display and the audible and visual alarm are connected to the circuit board.

3. A coil monitoring device according to claim 1 or 2, wherein the sensor is a temperature sensor.

4. The device for monitoring the motor coil as claimed in claim 2, wherein a transparent sliding cover is slidably mounted on an outer surface of the top of the waterproof box, the transparent sliding cover slides to cover the display in the closed state, and the transparent sliding cover slides to expose the display in the open state.

5. The device for monitoring the motor coil according to claim 2, wherein the waterproof box comprises a box body with an open upper end and a box cover fixed on the upper end of the box body by bolts and covering the open upper end of the box body, and the box body and the motor casing are of an integrally formed structure.

6. The device for monitoring the motor coil according to claim 5, wherein the box cover is provided with a hole for the purpose of avoiding displacement, the display is exposed from the hole for the purpose of avoiding displacement, the outer surface of the box cover is positioned on two sides of the hole for the purpose of avoiding displacement and is provided with bosses, the inner side surface of each boss is provided with a sliding groove, a transparent sliding cover is slidably inserted into the sliding grooves on the bosses, the transparent sliding cover slides to cover the display in a closed state, and the transparent sliding cover slides to expose the display in an open state.

7. The monitoring device for the motor coil as claimed in claim 2, wherein the waterproof box is provided at an upper end thereof with a ring of edge stand protruding outward, and the audible and visual alarm is fixed on the edge stand.

8. The motor coil monitoring device as claimed in claim 1 or 2, wherein the circuit board comprises a power module and a single-chip microprocessor.

9. The apparatus of claim 8, wherein the power module comprises a transformer and a rectifier, and the power of the power module is an ac power externally connected to the motor.

10. The apparatus of claim 2, wherein the display comprises a button.