CN213027652U

CN213027652U - Miniature wheel type DC brushless motor

Info

Publication number: CN213027652U
Application number: CN202021701168.2U
Authority: CN
Inventors: 陈蓉
Original assignee: Foshan Shunde Chengtong Electronic Technology Co ltd
Current assignee: Foshan Shunde Chengtong Electronic Technology Co ltd
Priority date: 2020-08-16
Filing date: 2020-08-16
Publication date: 2021-04-20
Anticipated expiration: 2030-08-16

Abstract

The utility model discloses a miniature wheeled DC brushless motor, the novel nipple rectifier comprises a cylindrical shel, set up the radiating groove that the equidistance is the loop configuration and distributes on the outer wall of barrel side, install the top cap through the bolt on the outer wall of barrel top, and all seted up the mounting groove on the outer wall of top cap bottom with on the inner wall of barrel bottom, the inside grafting of mounting groove has the installation bearing, and pegs graft between two installation bearings and have the pivot that runs through the top cap, the pivot is located the outside one end integrated into one piece of barrel and has the transmission shaft, the key connection has the rotor that is located the barrel inside on the. The utility model discloses when using this DC brushless motor, the radiating groove can accelerate the inside heat of barrel and give off, is favorable to accelerating this DC brushless motor heat dissipation to improve brushless motor's life, and during the equipment motor, during the staff can insert the magnet steel into the cardboard, and when then covering the top cap, the magnet steel can insert in the limiting plate, thereby accomplishes the equipment to the magnet steel, improves the production efficiency who produces this motor.

Description

Miniature wheel type DC brushless motor

Technical Field

The utility model relates to a direct current brushless motor technical field especially relates to a miniature wheeled direct current brushless motor.

Background

The brushless dc motor is a synchronous motor composed of a motor body and a driver, and is also a typical mechatronic product.

At present, the through-hole on the end cover is mostly dispelled the heat through the current direct current brushless motor heat dissipation, and the thermal diffusivity is relatively poor, and current brushless motor is not convenient for assemble the magnet steel simultaneously, consequently, needs to design a miniature wheeled direct current brushless motor to solve above-mentioned problem urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the prior brushless motor in the prior art has poor heat dissipation and is not convenient for assembling with the magnetic steel when in use, and providing a miniature wheel type DC brushless motor.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a miniature wheeled DC brushless motor, includes the barrel, set up the radiating groove that the equidistance is the annular structure and distributes on the barrel side outer wall, install the top cap through the bolt on the barrel top outer wall, and all seted up the mounting groove on the outer wall of top cap bottom with on the inner wall of barrel bottom, the inside grafting of mounting groove has the installation bearing, and pegs graft between two installation bearings and have the pivot that runs through the top cap, the pivot is located the outside one end integrated into one piece of barrel and has the transmission shaft, key connection has the rotor that is located the barrel on the outer wall of transmission shaft side, the welding has the limiting plate that the equidistance is the annular structure and distributes on the inner wall of barrel side.

Furthermore, the outer wall of the bottom of the top cover is welded with clamping plates which are distributed in an annular structure at equal intervals, and the top end of the magnetic steel is clamped inside the clamping plates.

Furthermore, the center of the outer wall of the bottom of the rotor and the center of the outer wall of the top of the rotor are both provided with grooves, and one end of the mounting bearing is inserted into the grooves.

Furthermore, springs are sleeved at the positions, close to the bottom end, of the outer wall of the side face of the rotating shaft and the positions, close to the top end, of the outer wall of the side face, and the springs are located between the inner wall of the top of the groove and the outer wall of the side face opposite to the mounting bearing.

Further, the protective housing is installed through the bolt in barrel side outer wall department near the bottom, and protective housing top outer wall both sides have all been seted up and have been crossed the line hole, protective housing top outer wall is close to line hole department and bonds there is the protective sheath.

Further, the barrel side outer wall is close to bottom department and is installed the joint through the bolt, and the joint is located inside the protective housing.

Furthermore, a lead wire extending to the outside of the protective shell is inserted into the connector, and a threaded cap in threaded connection with the connector is sleeved at one end of the lead wire.

The utility model has the advantages that:

1. through the radiating groove that sets up, when using this brushless DC motor, the inside heat of barrel can be accelerated to the radiating groove and gives off, is favorable to accelerating the heat dissipation of this brushless DC motor to improve brushless DC motor's life.

2. Through cardboard and the limiting plate that sets up, when assembling this motor, during the staff can insert the cardboard with the magnet steel earlier, then when covering the top cap for the magnet steel inserts in the limiting plate, thereby accomplishes the equipment to the magnet steel, improves the production efficiency of producing this motor.

3. Through the protective housing and the screw cap that set up, when meetting water, the protective housing can prevent that water from getting into the motor through the lead wire inside, avoids influencing motor work, and the screw cap is convenient for the staff and installs the lead wire on the joint simultaneously to in time change the lead wire when the lead wire damages.

Drawings

Fig. 1 is a front view of a micro wheel type dc brushless motor according to the present invention;

fig. 2 is a front view structural cross-sectional view of a micro wheel type dc brushless motor according to the present invention;

fig. 3 is a schematic structural view of a top cover and a cylinder of a micro-wheel type dc brushless motor according to the present invention;

fig. 4 is a schematic structural diagram of a miniature wheel-type dc brushless motor according to the present invention.

In the figure: the device comprises a barrel body 1, a top cover 2, a transmission shaft 3, a heat dissipation groove 4, a protective shell 5, a limiting plate 6, a clamping plate 7, magnetic steel 8, a mounting groove 9, a mounting bearing 10, a groove 11, a spring 12, a rotor 13, a rotating shaft 14, a joint 15, a threaded cap 16, a lead 17, a wire passing hole 18 and a protective sleeve 19.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope 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, a micro wheel type dc brushless motor includes a barrel 1, a heat dissipation groove 4 disposed on the outer wall of the side of the barrel 1 and distributed in an annular structure at equal intervals for accelerating the heat dissipation of the barrel 1 and thus accelerating the heat dissipation of the motor, a top cover 2 mounted on the outer wall of the top of the barrel 1 through bolts for preventing a rotor 14 inside the barrel 1 from separating from the barrel 1, and mounting grooves 9 disposed on the outer wall of the bottom of the top cover 2 and the inner wall of the bottom of the barrel 1 for limiting and fixing the mounting bearings 10, the mounting bearings 10 inserted in the mounting grooves 9, a rotating shaft 14 inserted between the two mounting bearings 10 and penetrating through the top cover 2 for mounting the rotor 14, a transmission shaft 3 integrally formed at one end of the rotating shaft 14 outside the barrel 1 for mounting a moving element on the motor so that the motor drives the moving element to move, and a rotor 13 inside the barrel 1 is keyed on the outer wall of the side of, limiting plates 6 distributed in an annular structure at equal intervals are welded on the inner wall of the side face of the barrel body 1 and used for limiting magnetic steel 8 installed inside the barrel body 1, the magnetic steel 8 is inserted into the limiting plates 6, and the magnetic steel 8 is a stator.

Further, the welding has cardboard 7 that the equidistance is the annular structure and distributes on 2 bottom outer walls of top cap, during this motor of equipment, during the staff can insert magnet steel 8 earlier in cardboard 7, then when covering top cap 2 for magnet steel 8 inserts in limiting plate 6, thereby accomplish the equipment to magnet steel 8, improve the production efficiency of producing this motor, and magnet steel 8 top joint is inside cardboard 7.

Further, the center of the outer wall at the bottom of the rotor 13 and the center of the outer wall at the top of the rotor 13 are both provided with grooves 11, so that the rotor 14 is installed on the installation bearing 10, and one end of the installation bearing 10 is inserted into the grooves 11.

Further, the spring 12 is sleeved on the outer wall of the side surface of the rotating shaft 14 close to the bottom end and the outer wall of the side surface close to the top end, the spring 12 can ensure the balance of the installation bearing 10, the increase of the running stability of the rotor 14 is facilitated, and the spring 12 is located between the inner wall of the top of the groove 11 and the outer wall of the opposite side of the installation bearing 10.

Further, the protective housing 5 is installed through the bolt near bottom department to the outer wall of barrel 1 side, and inside the protective housing 5 can prevent that water from getting into the motor through lead wire 17, avoid influencing motor work, and 5 top outer wall both sides of protective housing have all been seted up and have been crossed

line hole

18, and 5 top outer wall of protective housing is close to and has been bonded protective sheath 19 through line hole 18 department.

Further, a joint 15 is installed on the outer wall of the side surface of the barrel 1 close to the bottom end through a bolt, so that a lead inside the barrel 1 is connected with a lead 17, and the joint 15 is located inside the protective shell 5.

Furthermore, a lead 17 extending to the outside of the protective shell 5 is inserted into the connector 15, so that the motor is connected with a power supply or other equipment, a threaded cap 16 in threaded connection with the connector 15 is sleeved at one end of the lead 17, and the threaded cap 16 is convenient for a worker to install the lead 17 on the connector, so that the lead 17 can be replaced in time when the lead 17 is damaged.

The working principle is as follows: during assembly, a worker can firstly install the assembled rotor 13 and the top cover 2 on the rotating shaft 14, then the worker can insert the magnetic steel 8 into the clamping plate 7, then place one mounting bearing 10 into the groove 11, at the moment, firstly place the spring 12 into the groove 11 and sleeve the spring on the rotating shaft 14, then install the other mounting bearing 10 in the mounting groove 9, then insert the bottom end of the rotating shaft 14 into the mounting bearing 10, then the worker installs the top cover 2 on the cartridge body 1 by using bolts, at the moment, the magnetic steel 8 in the clamping plate 7 can be inserted into the limiting plate 6, then when using the motor, the heat dissipation groove 4 can accelerate the heat dissipation in the cartridge body 1, which is beneficial to accelerating the heat dissipation of the DC brushless motor, thereby improving the service life of the brushless motor, and the protective shell 5 can prevent water from entering the cartridge body 1 through the lead 17 and avoiding influencing the work of the motor, and the screw cap 16 facilitates the worker to mount the lead 17 on the connector 15 so as to replace the lead 17 in time when the lead 17 is damaged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A miniature wheel type direct current brushless motor comprises a barrel body (1) and is characterized in that radiating grooves (4) distributed in an annular structure at equal intervals are formed in the outer wall of the side face of the barrel body (1), a top cover (2) is installed on the outer wall of the top of the barrel body (1) through bolts, mounting grooves (9) are formed in the outer wall of the bottom of the top cover (2) and the inner wall of the bottom of the barrel body (1), mounting bearings (10) are inserted into the mounting grooves (9), a rotating shaft (14) penetrating through the top cover (2) is inserted between the two mounting bearings (10), a transmission shaft (3) is integrally formed at one end, located outside the barrel body (1), of the rotating shaft (14), a rotor (13) located inside the barrel body (1) is in keyed connection with the outer wall of the side face of the transmission shaft (3), limiting plates (6) distributed in an annular structure at, and the limiting plate (6) is internally inserted with a magnetic steel (8).

2. The micro wheel type brushless DC motor according to claim 1, wherein clamping plates (7) are welded on the outer wall of the bottom of the top cover (2) and distributed in an annular structure at equal intervals, and the top ends of the magnetic steels (8) are clamped inside the clamping plates (7).

3. The miniature wheel type brushless DC motor according to claim 2, wherein the rotor (13) is provided with a groove (11) at the center of the outer wall at the bottom and the center of the outer wall at the top, and one end of the bearing (10) is inserted into the groove (11).

4. The miniature wheel type DC brushless motor according to claim 1, wherein the spring (12) is sleeved on the outer wall of the side surface of the rotating shaft (14) near the bottom end and the outer wall of the side surface near the top end, and the spring (12) is located between the inner wall of the top of the groove (11) and the outer wall of the side opposite to the mounting bearing (10).

5. The miniature wheel type brushless DC motor according to claim 4, wherein a protective shell (5) is installed on the outer wall of the side surface of the cylinder (1) near the bottom end through bolts, two sides of the outer wall of the top of the protective shell (5) are provided with wire through holes (18), and a protective sleeve (19) is bonded on the outer wall of the top of the protective shell (5) near the wire through holes (18).

6. The miniature wheel type brushless DC motor according to claim 1, wherein the outer wall of the side surface of the cylinder (1) near the bottom end is provided with a joint (15) through a bolt, and the joint (15) is positioned inside the protective shell (5).

7. The miniature wheel type brushless DC motor according to claim 6, wherein a lead (17) extending to the outside of the protective shell (5) is inserted into the joint (15), and a threaded cap (16) in threaded connection with the joint (15) is sleeved at one end of the lead (17).