CN219436760U

CN219436760U - Explosion-proof DC brushless motor

Info

Publication number: CN219436760U
Application number: CN202320335040.6U
Authority: CN
Inventors: 朱东杰; 黄伟; 陈熙; 钱晓明; 许云飞
Original assignee: Jiangsu Wheatstone Electric Automation Co ltd
Current assignee: Jiangsu Wheatstone Electric Automation Co ltd
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-07-28
Anticipated expiration: 2033-02-28

Abstract

The utility model provides an explosion-proof direct current brushless motor, which is characterized in that positive direct current is input through a positive direct current wire of a motor, negative direct current is input through a negative direct current wire of the motor, the direct current brushless motor rotor drives a direct current brushless motor stator to continuously rotate through magnetic force by changing magnetism of the direct current brushless motor rotor, wherein a signal magnetic ring can obtain magnetic information which needs to be converted in the rotating process in the middle period, the magnetic information of the direct current brushless motor rotor is converted through a Hall element, an explosion-proof layer is arranged in a shell of an explosion-proof shell of the motor, the direct current brushless motor stator is arranged in the explosion-proof shell of the motor, and an explosion-proof fiber net is covered on the inner wall of the explosion-proof shell of the motor and the direct current brushless motor stator. The explosion-proof shell of the motor is a synthetic explosion-proof plate formed by strongly extruding a galvanized steel plate on a fiber plate, and the explosion-proof layer is made of polycarbonate glass fiber, so that the explosion of the motor in the operation process can be effectively prevented.

Description

Explosion-proof DC brushless motor

Technical Field

The utility model relates to the field of brushless motors, in particular to an explosion-proof direct current brushless motor.

Background

The direct current brushless motor provided by Chinese patent (application number: CN 201920887228.5) comprises a stator, a rotor, a power line and a driving plate, wherein the power line is connected with the driving plate, the rotor comprises a first output shaft and a second output shaft which are rotatably arranged, shaft sleeves are respectively arranged on the first output shaft and the second output shaft, magnetic shoes are arranged outside the shaft sleeves, and a separation plate is arranged between the first output shaft and the second output shaft; the stator comprises a first coil assembly and a second coil assembly, wherein the first coil assembly corresponds to a magnetic shoe of a first output shaft, the second coil assembly corresponds to a magnetic shoe of a second output shaft, phase lines of the first coil assembly and the second coil assembly are connected in parallel to a driving plate, and the first coil assembly and the second coil assembly are provided with phase line arrangement sequences which drive the first output shaft and the second output shaft to rotate in opposite directions.

But current application number: the direct current brushless motor proposed by CN201920887228.5 has some defects in the using process, firstly, the working environment of the motor often contains a plurality of explosive mixed gases, in this case, if the motor explodes, the result brought by the explosion is very serious, the explosion-proof cover is wrapped on the existing motor to prevent the motor from exploding, however, the thicker the outer wrapping is, the more the heat dissipation of the motor is affected, the working environment of the motor is usually more dust, and the motor is blocked and burnt out after long-term cleaning, so that the improvement is made, and the explosion-proof direct current brushless motor is provided.

Disclosure of Invention

The utility model aims at: aiming at the problems of the prior art, the utility model provides the following technical proposal for realizing the purpose of the utility model: the utility model provides an explosion-proof direct current brushless motor, includes motor explosion-proof shell, the embedding has annular front end housing on the outside of motor explosion-proof shell the place ahead annular, motor explosion-proof shell afterbody has inlayed square rear end cap, be equipped with the explosion-proof layer in the motor explosion-proof shell casing, the direct current brushless motor stator has been placed to motor explosion-proof shell's inside, motor explosion-proof shell inner wall with direct current brushless motor stator covers the one deck explosion-proof fiber net.

As the preferable technical scheme of the utility model, the annular front end cover and the square rear end cover are both made of explosion-proof materials.

As the preferable technical scheme of the utility model, the two direct current brushless motor stators are arranged on the inner sides of the explosion-proof housing of the motor, the two stators are longitudinally symmetrical, and each outer edge of each direct current brushless motor stator is covered with one layer of explosion-proof fiber net.

As a preferable technical scheme of the utility model, a direct current brushless motor rotor is rotatably arranged between the direct current brushless motor stators, magnetic steel is arranged in a gap between the direct current brushless motor stators and the direct current brushless motor rotor, and the number of the magnetic steel is two, and the two magnetic steel are sequentially arranged at the upper end and the lower end of the direct current brushless motor rotor.

As a preferable technical scheme of the utility model, a bearing is embedded in the annular front end cover, a gasket is fixedly arranged on the bearing inner ring, a signal magnetic ring is arranged on one side of the DC brushless motor rotor, and one side of the signal magnetic ring is connected with a Hall element.

As the preferable technical scheme of the utility model, a motor rotating output shaft is embedded in the rotor of the DC brushless motor, the other end of the motor rotating output shaft penetrates through the side wall of the motor explosion-proof housing and is embedded in the bearing, the top surface of the motor explosion-proof housing is electrically connected with a DC wire sleeve, and a fastening bolt is embedded outside the DC wire sleeve.

As the preferable technical scheme of the utility model, the two direct current wire sleeves and the fastening bolts are mutually symmetrical, a motor positive direct current wire is electrically arranged above the direct current wire sleeve, and a motor negative direct current wire is electrically connected above the other direct current wire sleeve.

Compared with the prior art, the utility model has the beneficial effects that: in the scheme of the utility model: the direct current input method comprises the steps of inputting positive direct current through a motor positive direct current wire, inputting negative direct current through a motor negative direct current wire, enabling a direct current brushless motor stator to adopt a magnetic ring with fixed magnetism, enabling the direct current brushless motor rotor to drive the direct current brushless motor stator to continuously rotate through magnetic force through changing the magnetism of the direct current brushless motor rotor, enabling a signal magnetic ring to obtain magnetic information which needs to be changed in the rotating process, converting the magnetic information of the direct current brushless motor rotor through a Hall element, arranging an explosion-proof layer in a motor explosion-proof shell, arranging the direct current brushless motor stator in the motor explosion-proof shell, and covering an explosion-proof fiber net on the inner wall of the motor explosion-proof shell and the direct current brushless motor stator. The explosion-proof shell of the motor is a synthetic explosion-proof plate formed by strongly extruding a galvanized steel plate on a fiber plate, and the explosion-proof layer is made of polycarbonate glass fiber, so that the explosion of the motor in the operation process can be effectively prevented.

Drawings

FIG. 1 is a schematic diagram of a front view structure provided by the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic view of an explosion-proof fiber web structure provided by the utility model;

fig. 4 is a schematic left-view structure of the present utility model.

The figures indicate:

1. an explosion-proof housing of the motor; 2. a ring-shaped front end cover; 3. a square rear end cover; 4. an explosion-proof layer; 5. a DC brushless motor stator; 6. an explosion-proof fiber web; 7. a DC brushless motor rotor; 8. magnetic steel; 9. a bearing; 10. a gasket; 11. a signal magnetic ring; 12. a Hall element; 13. the motor rotates the output shaft; 14. a DC wire sleeve; 15. a fastening bolt; 16. a motor positive DC wire; 17. and a motor negative DC wire.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model.

Thus, the following detailed description of the embodiments of the utility model is not intended to limit the scope of the utility model, as claimed, but is merely representative of some embodiments of the utility model. All other embodiments obtained by those skilled in the art without making any creative effort based on the embodiments of the present utility model are within the protection scope of the present utility model, and it should be noted that the embodiments of the present utility model and features and technical solutions of the embodiments of the present utility model may be combined with each other without collision: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Example 1: referring to fig. 1-4, an explosion-proof dc brushless motor includes a motor explosion-proof housing 1, a ring-shaped front end cover 2 is nested on the ring-shaped outside in front of the motor explosion-proof housing 1, a square rear end cover 3 is nested at the tail of the motor explosion-proof housing 1, an explosion-proof layer 4 is arranged in the housing of the motor explosion-proof housing 1, a dc brushless motor stator 5 is placed in the motor explosion-proof housing 1, and an explosion-proof fiber net 6 is covered on the inner wall of the motor explosion-proof housing 1 and the dc brushless motor stator 5. The annular front end cover 2 and the square rear end cover 3 are made of explosion-proof materials. The two direct current brushless motor stators 5 are arranged on the inner side of the motor explosion-proof housing 1, are longitudinally symmetrical, and each direct current brushless motor stator 5 is covered with an explosion-proof fiber net 6 on the outer side.

A direct current brushless motor rotor 7 is rotatably arranged between the direct current brushless motor stators 5, magnetic steel 8 is arranged in a gap between the direct current brushless motor stators 5 and the direct current brushless motor rotor 7, and the two magnetic steel 8 are arranged and sequentially arranged at the upper end and the lower end of the direct current brushless motor rotor 7. The bearing 9 is embedded in the annular front end cover 2, a gasket 10 is fixedly arranged on the inner ring of the bearing 9, a signal magnetic ring 11 is arranged on one side of the rotor 7 of the DC brushless motor, and one side of the signal magnetic ring 11 is connected with a Hall element 12.

The inside of DC brushless motor rotor 7 has embedded motor rotation output shaft 13, and the other end of motor rotation output shaft 13 runs through motor explosion-proof housing 1 lateral wall, and the while embedding is inside bearing 9, and the top surface electric connection of motor explosion-proof housing 1 has direct current wire cover 14, and the outside of direct current wire cover 14 nests has fastening bolt 15. The two direct current wire sleeves 14 and the fastening bolts 15 are symmetrical, a motor positive direct current wire 16 is electrically arranged above the direct current wire sleeve 14, and a motor negative direct current wire 17 is electrically connected above the other direct current wire sleeve 14.

In the using process of the utility model, the positive direct current is input through the motor positive direct current wire 16, the negative direct current is input through the motor negative direct current wire 17, the direct current brushless motor stator adopts a magnetic ring with fixed magnetism, the direct current brushless motor rotor 7 drives the direct current brushless motor stator 5 to rotate continuously through magnetic force by changing the magnetism of the direct current brushless motor rotor 7, wherein the signal magnetic ring 11 can obtain magnetic information which needs to be converted in the rotating process, and then the magnetic type of the direct current brushless motor rotor 7 is converted through the Hall element 12, so that the explosion-proof function of the direct current brushless motor is realized, the explosion-proof layer 4 is arranged in the shell of the motor explosion-proof shell 1, the direct current brushless motor stator 5 is arranged in the motor explosion-proof shell 1, and the inner wall of the motor explosion-proof shell 1 and the direct current brushless motor stator 5 are covered by a layer of explosion-proof fiber net 6. The motor explosion-proof housing 1 is a synthetic explosion-proof plate formed by strongly extruding galvanized steel plates on a fiberboard, and the explosion-proof layer 4 is made of polycarbonate glass fiber, so that the explosion of the motor in the operation process can be effectively prevented.

The above embodiments are only for illustrating the present utility model and not for limiting the technical solutions described in the present utility model, and although the present utility model has been described in detail in the present specification with reference to the above embodiments, the present utility model is not limited to the above specific embodiments, and thus any modifications or equivalent substitutions are made to the present utility model; all technical solutions and modifications thereof that do not depart from the spirit and scope of the utility model are intended to be included in the scope of the appended claims.

Claims

1. The utility model provides an explosion-proof direct current brushless motor, includes motor explosion-proof housing (1), its characterized in that, the embedding has annular front end housing (2) on motor explosion-proof housing (1) the place ahead annular outside, motor explosion-proof housing (1) afterbody has inlayed square rear end cap (3), be equipped with explosion-proof layer (4) in motor explosion-proof housing (1) casing, direct current brushless motor stator (5) have been placed to the inside of motor explosion-proof housing (1), motor explosion-proof housing (1) inner wall with direct current brushless motor stator (5) cover one deck explosion-proof fiber net (6).

2. An explosion-proof dc brushless motor according to claim 1, wherein the ring-shaped front end cover (2) and the square rear end cover (3) are made of explosion-proof materials.

3. An explosion-proof dc brushless motor according to claim 2, wherein two dc brushless motor stators (5) are provided, each of which is installed inside the explosion-proof housing (1) of the motor, and are longitudinally symmetrical, and each of the dc brushless motor stators (5) is covered with a layer of the explosion-proof fiber net (6) on the outer side thereof.

4. An explosion-proof brushless dc motor according to claim 3, wherein a brushless dc motor rotor (7) is rotatably mounted between the brushless dc motor stators (5), magnetic steel (8) is disposed in a gap between the brushless dc motor stators (5) and the brushless dc motor rotor (7), and the magnetic steel (8) is provided with two magnetic steels, which are sequentially mounted at the upper and lower ends of the brushless dc motor rotor (7).

5. The explosion-proof direct current brushless motor according to claim 4, wherein a bearing (9) is embedded in the annular front end cover (2), a gasket (10) is fixedly installed on the inner ring of the bearing (9), a signal magnetic ring (11) is arranged on one side of the rotor (7) of the direct current brushless motor, and a hall element (12) is connected to one side of the signal magnetic ring (11).

6. An explosion-proof dc brushless motor according to claim 5, wherein the inside of the dc brushless motor rotor (7) is embedded with a motor rotation output shaft (13), and the other end of the motor rotation output shaft (13) penetrates through the side wall of the motor explosion-proof housing (1) and is embedded in the bearing (9), the top surface of the motor explosion-proof housing (1) is electrically connected with a dc wire sleeve (14), and the outside of the dc wire sleeve (14) is embedded with a fastening bolt (15).

7. An explosion-proof dc brushless motor according to claim 6, wherein the dc wire sleeve (14) and the fastening bolt (15) are both provided with two parts which are symmetrical, the motor positive dc wire (16) is electrically installed above the dc wire sleeve (14), and the motor negative dc wire (17) is electrically connected above the other dc wire sleeve (14).