Direct current brushless motor assembly

Abstract

The utility model provides a direct current brushless motor assembly, which relates to the technical field of motors and comprises an upper mounting shell, a lower mounting shell and at least two groups of motor assemblies, rubber shells are sleeved on the outer side walls of the motor assemblies, and two sides of the upper mounting shell and two sides of the lower mounting shell are detachably connected through two fixing assemblies respectively. The bottom side of the upper mounting shell and the upper side of the lower mounting shell are each provided with at least two sets of positioning rings, through the design of the upper mounting shell and the lower mounting shell, the motor assembly is modularly wrapped, meanwhile, the upper mounting shell and the lower mounting shell are detachably connected through the fixing assemblies on the two sides, an operator can conveniently mount, dismount and maintain the motor assembly, and the working efficiency is improved. And the outer side of the motor assembly is sleeved with a rubber shell, the inner walls of the upper side and the lower side of the rubber shell are arranged on the outer sides of two positioning rings arranged on the upper mounting shell and the lower mounting shell in a sleeving mode correspondingly, the stability of the motor assembly can be improved through the structure, and workers can conveniently mount the motor assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a brushless DC motor assembly. Background Art

[0002] A brushless DC motor (BLDC motor for short) is a motor that uses an electronic commutator (electronic speed controller) to replace the traditional carbon brush and commutator. This kind of motor has the characteristics of high efficiency, low noise, long life and low maintenance cost, and is widely used in various fields, such as household appliances, power tools, automobiles, aerospace, robots and industrial automation, etc.

[0003] The working principle of a brushless DC motor is based on the law of electromagnetic induction. The stator (stationary part) of the motor consists of multiple electromagnets, while the rotor (rotating part) is composed of permanent magnets. By controlling the current direction of the stator coil through an electronic speed controller, a rotating magnetic field is generated to attract the permanent magnets on the rotor, causing it to rotate. The brushless DC motor avoids mechanical wear and spark generation, improving the reliability and efficiency of the motor.

[0004] On complex production lines, multiple brushless DC motor assemblies are often required to work together, such as conveyor belts, robots, automatic assembly lines, etc. However, the existing brushless DC motor assemblies are generally fixed to the equipment separately by bolts, resulting in poor integrity between the brushless DC motor assemblies, a more cumbersome installation process and a large installation space occupation.

[0005] Therefore, it is necessary to provide a new brushless DC motor assembly to solve the above technical problems. Summary of the Utility Model

[0006] To solve the above technical problems, the utility model provides a brushless DC motor assembly.

[0007] The brushless DC motor assembly provided by the utility model includes: an upper mounting shell, a lower mounting shell and a motor assembly. The upper mounting shell and the lower mounting shell are arranged opposite to each other. At least two groups of motor assemblies are provided. A rubber shell is sleeved on the outer side wall of the motor assembly. The motor assembly and the rubber shell are installed between the upper mounting shell and the lower mounting shell. The two sides of the upper mounting shell and the lower mounting shell are respectively detachably connected by two fixing components. At least two groups of positioning rings are provided on the bottom side of the upper mounting shell and the upper side of the lower mounting shell. The inner walls on the upper and lower sides of the rubber shell are respectively sleeved on the outer side walls of the upper and lower positioning rings.

[0008] Preferably, the fixing component includes a movable shaft, a rotating rod, a threaded rod and a nut. Both ends of the movable shaft are fixedly connected to the installation grooves formed on one side of the upper end of the lower installation shell. One end of the rotating rod is rotatably connected to the movable shaft. The upper end of the rotating rod is fixedly connected to one end of the threaded rod. The outer sidewall of the threaded rod is adapted to the inner wall of the through groove formed on the sidewall of the upper installation shell. The nut is threadedly connected to the threaded rod, and the bottom side of the nut is fitted to the upper side of the inner wall of the groove formed on the sidewall of the upper installation shell. The groove is communicated with the through groove.

[0009] Preferably, the motor component includes a housing, a stator winding and a rotor component. Both the stator winding and the rotor component are installed in the housing.

[0010] Preferably, the two ends of the rotating shaft of the rotor component are respectively rotatably connected with a first bearing and a second bearing. The first bearing and the second bearing are respectively clamped in the upper installation shell and the lower installation shell. The outer sidewalls of the first bearing and the second bearing are respectively adapted to the inner walls of the upper installation shell and the lower installation shell.

[0011] Preferably, two fixing plates are respectively fixedly connected to the opposite sides of the upper end of the upper installation shell.

[0012] Preferably, a plurality of installation holes are formed in the fixing plates.

[0013] Compared with the related art, the DC brushless motor component provided by the present invention has the following beneficial effects:

[0014] The present invention provides a DC brushless motor component. Through the design of the upper installation shell and the lower installation shell, the motor component is modularly wrapped. At the same time, the fixing components on both sides realize the detachable connection of the upper installation shell and the lower installation shell, which is convenient for the operator to install, disassemble and maintain the motor component. A rubber shell is sleeved outside the motor component, and the inner walls of the upper and lower sides of the rubber shell are respectively sleeved outside the two positioning rings arranged on the upper installation shell and the lower installation shell. This structure can improve the stability of the motor component, reduce vibration and displacement, and the rubber shell can play a role in dust and water protection, and is convenient for the staff to install the motor component. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the DC brushless motor component provided by the present invention;

[0016] Figure 2 is a schematic diagram of the disassembled structure of the DC brushless motor component provided by the present invention;

[0017] Figure 3 is a schematic diagram of the structure of the lower installation shell provided by the present invention;

[0018] Figure 4 Schematic diagram of the upper mounting shell structure provided by the present utility model.

[0019] Reference numerals in the figure: 1, upper mounting shell; 2, lower mounting shell; 3, rubber shell; 4, positioning ring; 5, movable shaft; 6, rotating rod; 7, threaded rod; 8, nut; 9, mounting groove; 10, through groove; 11, groove; 12, casing; 13, stator winding; 14, rotor assembly; 15, first bearing; 16, second bearing; 17, fixing plate; 18, mounting hole. Specific embodiments

[0020] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the following will further elaborate on the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0022] Please refer to Figures 1-4 , in which Figure 1 is the overall structure schematic diagram of the DC brushless motor assembly provided by the present utility model; Figure 2 is the structural split schematic diagram of the DC brushless motor assembly provided by the present utility model; Figure 3 is the schematic diagram of the lower mounting shell structure provided by the present utility model; Figure 4 is the schematic diagram of the upper mounting shell structure provided by the present utility model.

[0023] In the specific implementation process, as Figures 1-4 shown, a DC brushless motor assembly includes an upper mounting shell 1, a lower mounting shell 2 and a motor assembly. The upper mounting shell 1 and the lower mounting shell 2 are arranged opposite to each other. At least two groups of motor assemblies are provided. A rubber shell 3 is sleeved on the outer side wall of the motor assembly. The motor assembly and the rubber shell 3 are installed between the upper mounting shell 1 and the lower mounting shell 2. The two sides of the upper mounting shell 1 and the lower mounting shell 2 are respectively detachably connected through two fixing components. At least two groups of positioning rings 4 are provided on the bottom side of the upper mounting shell 1 and the upper side of the lower mounting shell 2. The inner walls on the upper and lower sides of the rubber shell 3 are respectively sleeved on the outer side walls of the upper and lower positioning rings 4. Through the design of the upper mounting shell 1 and the lower mounting shell 2, the motor assembly is modularly wrapped, and at the same time, the fixing components on both sides realize the detachable connection of the upper mounting shell 1 and the lower mounting shell 2, which is convenient for the operator to install, disassemble and maintain the motor assembly, and improves the overall stability of the motor assembly;

[0024] The fixing component includes a movable shaft 5, a rotating rod 6, a threaded rod 7 and a nut 8. Both ends of the movable shaft 5 are fixedly connected to the installation grooves 9 opened on one side of the upper end of the installation lower shell 2. One end of the rotating rod 6 is rotatably connected to the movable shaft 5. The upper end of the rotating rod 6 is fixedly connected to one end of the threaded rod 7. The outer side wall of the threaded rod 7 is adapted to the inner wall of the through groove 10 opened on the side wall of the installation upper shell 1. The nut 8 is threadedly connected to the threaded rod 7, and the bottom side of the nut 8 is in fit with the upper side of the inner wall of the groove 11 opened on the side wall of the installation upper shell 1. The groove 11 communicates with the through groove 10. It should be noted that when the nut 8 is unscrewed and the nut 8 does not limit the threaded rod 7, the rotating rod 6 can rotate on the movable shaft 5. At this time, the installation upper shell 1, the installation lower shell 2 and the rubber shell 3 can be disassembled, which is convenient for the operator to maintain the motor component.

[0025] The motor component includes a casing 12, a stator winding 13 and a rotor component 14. The stator winding 13 and the rotor component 14 are both installed in the casing 12. Both ends of the rotating shaft of the rotor component 14 are respectively rotatably connected with a first bearing 15 and a second bearing 16. The first bearing 15 and the second bearing 16 are respectively clamped in the installation upper shell 1 and the installation lower shell 2. The outer side walls of the first bearing 15 and the second bearing 16 are respectively adapted to the inner walls of the installation upper shell 1 and the installation lower shell 2.

[0026] Two fixing plates 17 are respectively fixedly connected to the opposite sides of the upper end of the installation upper shell 1. A plurality of installation holes 18 are opened on the fixing plates 17. The fixing plates 17 can be fixed on the equipment through the installation holes 18. This structure improves the integrity between the DC brushless motor components, effectively reduces the occupied space of the whole motor, and improves the applicability of the motor component to a certain extent.

[0027] The circuits and controls involved in the present utility model are all prior arts and will not be elaborated here too much.

[0028] The above are only the embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A brushless DC motor assembly, characterized in that: include: An upper mounting shell (1), a lower mounting shell (2) and a motor assembly are arranged relative to each other, and at least two groups of motor assemblies are arranged. A rubber shell (3) is sleeved on the outer wall of the motor assembly. The motor assembly and the rubber shell (3) are installed between the upper mounting shell (1) and the lower mounting shell (2). The two sides of the upper mounting shell (1) and the lower mounting shell (2) are detachably connected by two fixing components respectively. The bottom side of the upper mounting shell (1) and the upper side of the lower mounting shell (2) are both provided with at least two groups of positioning rings (4). The inner walls of the upper and lower sides of the rubber shell (3) are sleeved on the outer walls of the upper and lower positioning rings (4) respectively.

2. The brushless DC motor assembly according to claim 1, characterized in that: The fixing assembly comprises a movable shaft (5), a rotating rod (6), a threaded rod (7) and a nut (8); both ends of the movable shaft (5) are fixedly connected to a mounting groove (9) provided on one side of the upper end of the mounting lower shell (2); one end of the rotating rod (6) is rotatably connected to the movable shaft (5); the upper end of the rotating rod (6) is fixedly connected to one end of the threaded rod (7); the outer wall of the threaded rod (7) is matched with the inner wall of a through groove (10) provided on the side wall of the mounting upper shell (1); the nut (8) is threadedly connected to the threaded rod (7); and the bottom side of the nut (8) is fitted with the upper side of the inner wall of a groove (11) provided on the side wall of the mounting upper shell (1); and the groove (11) is connected to the through groove (10).

3. The brushless DC motor assembly according to claim 2, characterized in that: The motor assembly comprises a housing (12), a stator winding (13) and a rotor assembly (14); the stator winding (13) and the rotor assembly (14) are both installed in the housing (12).

4. The brushless DC motor assembly according to claim 3, characterized in that: The two ends of the rotating shaft of the rotor assembly (14) are rotatably connected to a first bearing (15) and a second bearing (16), respectively; the first bearing (15) and the second bearing (16) are respectively clamped in the mounting upper shell (1) and the mounting lower shell (2); and the outer side walls of the first bearing (15) and the second bearing (16) are respectively matched with the inner walls of the mounting upper shell (1) and the mounting lower shell (2).

5. The brushless DC motor assembly according to claim 4, characterized in that: Two fixing plates (17) are respectively fixedly connected to opposite sides of the upper end of the mounting upper shell (1).

6. The brushless DC motor assembly according to claim 5, characterized in that: The fixing plate (17) is provided with a plurality of mounting holes (18).

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