CN213151841U

CN213151841U - Motor position sensorless monitoring equipment

Info

Publication number: CN213151841U
Application number: CN202022567232.9U
Authority: CN
Inventors: 吕德刚; 李坤; 代楠
Original assignee: Harbin University of Science and Technology
Current assignee: Harbin University of Science and Technology
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-05-07
Anticipated expiration: 2030-11-09

Abstract

The utility model relates to a motor does not have position sensor supervisory equipment, including shell and motor, be equipped with the motor in the middle of the inside of shell, and the motor passes through the inside bottom of base fixed mounting at the shell, the one end of motor is connected and is installed no position sensor, and one side of no position sensor is equipped with the line hole of walking, and walks the line hole and set up inside one side of shell, the outside bottom both sides fixed mounting of shell has the fixed block, and the inside of fixed block is run through and has been seted up the screw, and the inside of screw has inserted the screw. The utility model discloses utilize the shell to provide mounted position and protection to the motor, prevent that it from receiving outside dust to invade or the collision damage, be equipped with fan and opposite side in one side of shell and be equipped with the air outlet, dispel the heat to the motor of installing in the shell through the cooperation, prevent high temperature damage to install the monitoring head in shell inside one side, be used for the no position sensor of control, the staff of being convenient for learns whether normal work of no position sensor.

Description

Motor position sensorless monitoring equipment

Technical Field

The utility model relates to the technical field of motors, concretely relates to motor does not have position sensor supervisory equipment.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to an electromagnetic induction law. The motor is represented by a letter M (old standard is represented by D) in a circuit, the motor is mainly used for generating driving torque and serving as a power source of electrical appliances or various machines, the generator is represented by a letter G in the circuit, and the generator is mainly used for converting mechanical energy into electric energy; the existing motors all need an additional position sensor when in use to provide necessary commutation signals for the inverter bridge. Its existence brings a lot of inconveniences to the application of the dc brushless motor: first, position sensors can increase the size and cost of the motor, and second, connecting numerous position sensors can reduce the reliability of the motor operation.

Through massive retrieval, the Chinese utility model patent: application No.: CN201620089207.5, publication No.: CN205545029U, the utility model provides a no position sensor detecting system of motor, the no position sensor detecting system of motor of the device simple structure, and through comparing terminal voltage and half value of mains voltage, in order to obtain accurate nonconducting opposite electromotive force zero crossing point moment; the voltage sampling module can feed back a voltage signal of the circuit to the microprocessor, and once the circuit is abnormal, the driving circuit is controlled to stop driving the power supply of the motor M through the isolation circuit, so that the safety is high.

However, the motor position sensorless detection system has many problems, which affect the use of the user, for example, the position sensorless detection system is installed beside the motor, and the motor is installed in the motor box, so the position sensorless detection system cannot be seen by the staff at ordinary times, and the operation state of the position sensorless detection system cannot be known.

SUMMERY OF THE UTILITY MODEL

The utility model provides a motor does not have position sensor supervisory equipment has solved above technical problem.

The utility model provides a scheme as follows of above-mentioned technical problem: the utility model provides a motor does not have position sensor supervisory equipment, includes shell and motor, be equipped with the motor in the middle of the inside of shell, and the motor passes through the inside bottom of base fixed mounting at the shell, the one end of motor is connected and is installed no position sensor, and one side of no position sensor is equipped with walks the line hole, and walks the line hole and set up inside one side of shell, the outside bottom both sides fixed mounting of shell has the fixed block, and the screw has been seted up in the inside of fixed block through, and the inside of screw has inserted the screw.

The utility model has the advantages that:

1. the utility model discloses a set up no position sensor, make the rotational speed of motor can be surveyed out, reached measuring speed's effect, walk the line hole through setting up, make motor, control head and no position sensor's cable all can walk from this inside, reached and provided the effect of walking the line position.

2. The utility model discloses a set up the monitoring head, make no position sensor's operating condition can be seen, reached the control and learnt the effect of information, through the cooperation of screw and screw, make the fixed block can fixed mounting in the position of treating the installation, reached the effect that the fixed mounting was screwed up to the screw thread.

3. The utility model discloses a cooperation of air intake and fan makes the temperature of the motor during operation external radiation can carry out the effluvium, has reached the effect of mobile wind heat dissipation.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, an air inlet is formed in the front surface of the outer portion of the shell, and a fan is fixedly mounted inside the air inlet.

The beneficial effect of adopting the further scheme is that: through the cooperation of air intake and fan, the temperature that makes the motor during operation radiate outward can be dispelled, has reached the effect that the wind dispels the heat that flows.

Further, an air outlet is formed in the rear surface of the outer shell, and a filter screen is fixedly mounted inside the air outlet.

The beneficial effect of adopting the further scheme is that: the opening of the air outlet enables the flowing air generated by the fan to carry heat generated by the motor to be discharged out of the shell, and the installation of the filter screen prevents external dust from entering the shell from the air outlet.

Furthermore, a support is fixedly mounted on one side of the top end of the inner portion of the shell, and a monitoring head is rotatably mounted in the support.

The beneficial effect of adopting the further scheme is that: the installation of support makes the monitoring head can movable mounting in the inside of shell, and its angle of adjustment of being convenient for through setting up the monitoring head, makes no position sensor's operating condition can be seen, has reached the control and has learnt the effect of information.

Further, the other end of the motor is rotatably provided with a rotating shaft, the rotating shaft is inserted into the jack, and the jack is arranged inside the other side of the shell.

The beneficial effect of adopting the further scheme is that: the jack is arranged so that a rotating shaft connected and installed at the output end of the motor can extend to the outside of the shell from the outside, and power transmission is facilitated.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic front view of an internal structure according to an embodiment of the present invention;

fig. 2 is a schematic view of a front view of an external appearance structure according to an embodiment of the present invention;

fig. 3 is a schematic view of a rear view structure according to an embodiment of the present invention;

fig. 4 is a schematic view of a top-view appearance structure according to an embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a rotating shaft; 2. a jack; 3. a housing; 4. a base; 5. a motor; 6. no position sensor; 7. a monitoring head; 8. a support; 9. a wiring hole; 10. an air inlet; 11. a fan; 12. a screw; 13. a screw hole; 14. a fixed block; 15. an air outlet; 16. and (5) filtering by using a filter screen.

Detailed Description

The principles and features of the present invention are described below in conjunction with the accompanying fig. 1-4, the examples given are intended to illustrate the present invention and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, the present invention provides an embodiment: a motor monitoring device without a position sensor comprises a shell 3 and a motor 5, wherein the motor 5 is arranged in the middle of the inside of the shell 3, the motor 5 is fixedly arranged at the bottom end of the inside of the shell 3 through a base 4, one end of the motor 5 is connected with and provided with the position sensor 6, the rotating speed of the motor 5 can be measured through the position sensor 6, the effect of measuring the speed is achieved, one side of the position sensor 6 is provided with a wire routing hole 9, the wire routing hole 9 is arranged inside one side of the shell 3, cables of the motor 5, a monitoring head 7 and the position sensor 6 can all pass through the inside through the wire routing hole 9, the effect of providing a wire routing position is achieved, the other end of the motor 5 is rotatably provided with a rotating shaft 1, the rotating shaft 1 is inserted into the jack 2, the jack 2 is arranged inside the other side of the shell 3, the jack 2 is arranged so that the rotating shaft 1 connected and arranged at the output end of the motor 5 can extend to the outside of the, the power transmission is convenient.

A bracket 8 is fixedly arranged on one side of the top end inside the shell 3, a monitoring head 7 is rotatably arranged inside the bracket 8, the monitoring head 7 can be movably arranged inside the shell 3 by arranging the monitoring head 7, the working state of the position-free sensor 6 can be seen by arranging the monitoring head 7, the effect of monitoring and knowing information is achieved, fixed blocks 14 are fixedly arranged on two sides of the bottom end outside the shell 3, screw holes 13 are formed in the fixed blocks 14 in a penetrating manner, screws 12 are inserted into the screw holes 13, the fixed blocks 14 can be fixedly arranged at the positions to be installed through the matching of the screw holes 13 and the screws 12, the effect of screwing and fixedly installing threads is achieved, an air inlet 10 is formed in the front surface outside the shell 3, a fan 11 is fixedly arranged inside the air inlet 10, and the temperature radiated outwards when the motor 5 works can be dissipated through the matching of the air inlet 10 and the fan 11, the effect of heat dissipation of the flowing air is achieved, the air outlet 15 is formed in the rear surface of the outer portion of the shell 3, the filter screen 16 is fixedly mounted inside the air outlet 15, the air outlet 15 enables the flowing air generated by the fan 11 to bring heat generated by the motor 5 to be discharged out of the shell 3, and the filter screen 16 is mounted to prevent external dust from entering the shell 3 from the air outlet 15.

The working principle is as follows: when the utility model is used, workers need to install the utility model firstly, the motor 5 is fixedly arranged at the place to be installed, the housing 3 is then covered on the surface of the motor 5, the cables for monitoring the head 7, the motor 5 and the position sensor 6 are taken out of the wiring hole 9, then the rotating shaft 1 is inserted into the jack 2 and connected with the output end of the motor 5, after the connection and installation are completed, a worker aligns the screw hole 13 on a hole which is already drilled on the ground, the overlapping portion is screwed with the screw 12, so that the housing 3 is fixedly installed, and when the motor 5 is normally used, the fan 11 in the air inlet 10 starts to operate and blows air into the housing 3, the heat generated by the motor 5 is discharged through the air outlet 15, therefore, the heat dissipation effect is achieved, and the working condition of the position-free sensor 6 inside the shell 3 can be seen on the monitoring display screen through the monitoring head 7 and the terminal.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the present invention can be smoothly implemented by those skilled in the art according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.

Claims

1. An electric machine position sensorless monitoring apparatus comprising a housing (3) and a motor (5), characterized in that: be equipped with motor (5) in the middle of the inside of shell (3), and motor (5) pass through base (4) fixed mounting in the inside bottom of shell (3), the one end of motor (5) is connected and is installed no position sensor (6), and one side of no position sensor (6) is equipped with wire hole (9), and wire hole (9) are seted up inside one side of shell (3), the outside bottom both sides fixed mounting of shell (3) has fixed block (14), and screw (13) have been seted up in the inside of fixed block (14) through, and screw (12) have been inserted to the inside of screw (13).

2. The motor position sensorless monitoring apparatus of claim 1 wherein: an air inlet (10) is formed in the front surface of the outer portion of the shell (3), and a fan (11) is fixedly mounted inside the air inlet (10).

3. The motor position sensorless monitoring apparatus of claim 1 wherein: an air outlet (15) is formed in the outer rear surface of the shell (3), and a filter screen (16) is fixedly mounted inside the air outlet (15).

4. The motor position sensorless monitoring apparatus of claim 3 wherein: a support (8) is fixedly mounted on one side of the top end of the interior of the shell (3), and a monitoring head (7) is rotatably mounted in the support (8).

5. The motor position sensorless monitoring apparatus of claim 4 wherein: the other end of the motor (5) is rotatably provided with a rotating shaft (1), the rotating shaft (1) is inserted into the jack (2), and the jack (2) is arranged inside the other side of the shell (3).