Miniature brush motor

Abstract

The utility model relates to the technical field of brush motors, and discloses a miniature brush motor which comprises a rotating shaft, the outer surface of the rotating shaft is fixedly sleeved with a rotor, the right side of the outer surface of the rotating shaft is provided with a first bearing, and the outer surface of the first bearing is provided with a baffle plate. According to the utility model, the rotating shaft, the square block, the fan blades and the ventilation opening are arranged, and the ventilation opening is designed, so that the circulation of air in the motor can be ensured, and the motor is endowed with a good heat dissipation effect, and when the rotating shaft rotates, the square block drives the rotating block to rotate by taking the sleeving part of the rotating block and the fixed ring as the axis; due to the design of the first bearing and the second bearing, a good supporting effect on the rotating shaft can be achieved, at the moment, the fan blades are driven by the rotating block to rotate, due to the design of the fan blades, when the fan blades rotate, the air circulation speed in the motor can be increased, and then the efficient heat dissipation function on the motor can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a brush motor technical field more specifically, the utility model relates to a kind of miniature brush motor. BACKGROUND

[0002] Brush motor is the brush device inside the rotary motor of the conversion of electrical energy into mechanical energy or the conversion of mechanical energy into electrical energy, brush motor is the basis of all motors, it has fast start, brake and timely, can be in wide range Smoothly speed-regulated, control circuit is relatively simple etc.

[0003] With the development of electric micro motor technology and new material technology, miniature brush motor technology has also made great progress, it is widely used in disk drive, copying machine, numerical control machine tool, robot and other fields, the existing miniature brush motor although it has basic driving function, because the internal structure of miniature brush motor is compact, therefore, a large amount of heat is generated inside when working, leading to the overall temperature of motor rises significantly, most of the current miniature brush motor often relies on itself and the cover outside and air heat exchange heat dissipation, the heat dissipation efficiency is too low, in turn lead to motor energy consumption increases, efficiency reduces, serious even burn motor, thus needs to be improved. SUMMARY

[0004] In order to overcome the deficiencies of prior art, the utility model provides a kind of miniature brush motor, with the advantage that the motor is conveniently and efficiently cooled.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of miniature brush motor, comprising:

[0006] The outer surface of the rotating shaft is fixedly sleeved with a rotor, a first bearing is installed on the right side of the outer surface of the rotating shaft, and a baffle is installed on the outer surface of the first bearing;

[0007] The heat dissipation mechanism is arranged at the right end of the rotating shaft;

[0008] The heat dissipation mechanism includes a square block, the left side of the square block is fixedly connected with the right end of the rotating shaft, the outer surface of the square block movably sleeved with a rotating block, the outer surface of the rotating block is fixedly installed with a fan blade, the right side of the outer surface of the rotating block movably sleeved with a fixed ring, the outer surface of the fixed ring is fixedly sleeved with an end cover, and the inside of the end cover is movably connected with the right side of the baffle.

[0009] As a preferred technical scheme of the utility model, the left side of the outer surface of the rotating shaft is installed with a second bearing, the outer surface of the second bearing is installed with a shell, the outer surface of the shell is movably sleeved with the inside of the end cover, and the inside of the shell is movably sleeved with the outer surface of the baffle.

[0010] As a preferred technical scheme of the utility model, the outer surface of the shell is fixedly installed with a protruding block, and the outer surface of the protruding block is movably connected with the outer surface of the end cover.

[0011] As a preferred technical scheme of the utility model, the inside of the shell is fixedly sleeved with a circular ring, the inside of the circular ring is movably connected with a fixed block, and the right side of the fixed block is fixedly connected with the left side of the baffle.

[0012] As a preferred technical scheme of the utility model, the outer surface of the baffle, the end cover and the shell are all provided with ventilation openings.

[0013] As a preferred technical scheme of the utility model, the outer surface of the end cover is fixedly installed with a circular block, and the inside of the circular block is threadedly sleeved with a screw rod.

[0014] As a preferred technical scheme of the utility model, one end of the screw rod is fixedly installed with a twisting block, and the outer surface of the twisting block is movably connected with the outer surface of the circular block.

[0015] As a preferred technical scheme of the utility model, the other end of the screw rod is fixedly installed with a clamping block, and the outer surface of the clamping block is movably sleeved with the inside of the end cover, the shell, the circular ring and the fixed block.

[0016] Compared with the prior art, the utility model has the advantages as follows:

[0017] 1. The utility model discloses a motor, which comprises a shell, a motor, a baffle, an end cover, a rotating shaft, a square block, a rotating block, a fixed ring, a first bearing, a second bearing, a fan blade and a ventilation opening.

[0018] 2. The utility model discloses a motor, which comprises a shell, a motor, a baffle, an end cover, a rotating shaft, a square block, a rotating block, a fixed ring, a first bearing, a second bearing, a fan blade and a ventilation opening. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of the utility model;

[0020] Figure 2 It is a structure schematic view of the utility model's back view;

[0021] Figure 3 It is a structure schematic view of the utility model's section view;

[0022] Figure 4 It is a structure schematic view of the utility model's explosion;

[0023] Figure 5 It is a structure schematic view of the utility model's screw rod's section view;

[0024] Figure 6 It is a structure schematic view of the utility model's ring's section view.

[0025] In the drawing: 1, rotating shaft;2, rotor;3, first bearing;4, baffle;5, square block;6, rotating block;7, fan blade;8, fixed ring;9, end cover;10, second bearing;11, casing;12, lug;13, ring;14, fixed block;15, ventilation opening;16, round block;17, screw rod;18, twisting block;19, clamping block. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0027] As Figures 1 to 6 shown, the utility model provides a kind of miniature brush motor, comprising:

[0028] Rotating shaft 1, the outer surface of rotating shaft 1 is fixedly sleeved with rotor 2, the right side of the outer surface of rotating shaft 1 is equipped with first bearing 3, and the outer surface of first bearing 3 is equipped with baffle 4;

[0029] Heat dissipation mechanism, heat dissipation mechanism is arranged at the right end of rotating shaft 1;

[0030] Wherein, heat dissipation mechanism includes square block 5, the left side of square block 5 is fixedly connected with the right end of rotating shaft 1, the outer surface of square block 5 is movably sleeved with rotating block 6, the outer surface of rotating block 6 is fixedly installed with fan blade 7, the right side of the outer surface of rotating block 6 is movably sleeved with fixed ring 8, the outer surface of fixed ring 8 is fixedly sleeved with end cover 9, and the inside of end cover 9 is movably connected with the right side of baffle 4.

[0031] When the inner part of the end cover 9 is in contact with the outer surface of the baffle 4, the inner part of the rotating block 6 will be sleeved with the outer surface of the square block 5 at this time, when the rotating shaft 1 rotates, the rotating block 6 will be driven to rotate by the square block 5, at this time the fan blade 7 will be driven to rotate by the rotating block 6, due to the design of the fan blade 7, when the fan blade 7 rotates, it will blow, due to the design of the first bearing 3, it will support the rotating shaft 1 well.

[0032] The outer surface of the rotating shaft 1 is provided with the second bearing 10 on the left side, the outer surface of the second bearing 10 is provided with the shell 11, the outer surface of the shell 11 is movably sleeved with the inner part of the end cover 9, and the inner part of the shell 11 is movably sleeved with the outer surface of the baffle 4.

[0033] Due to the design of the second bearing 10, the rotating shaft 1 is well supported, and due to the design of the shell 11, the rotating shaft 1 as a whole is well protected.

[0034] The outer surface of the shell 11 is fixedly provided with the protrusion 12, and the outer surface of the protrusion 12 is movably connected with the outer surface of the end cover 9.

[0035] Due to the design of the protrusion 12, the connection between the end cover 9 and the shell 11 is well positioned.

[0036] The inner part of the shell 11 is fixedly sleeved with the annular ring 13, the inner part of the annular ring 13 is movably connected with the fixed block 14, and the right side of the fixed block 14 is fixedly connected with the left side of the baffle 4.

[0037] Due to the design of the annular ring 13 and the fixed block 14, the connection between the baffle 4 and the shell 11 is well positioned.

[0038] Ventilation holes 15 are formed in the outer surfaces of the baffle 4, the end cover 9 and the shell 11.

[0039] Due to the design of the ventilation holes 15, the air circulation in the motor can be ensured, and the heat dissipation of the motor can be enhanced, and when the fan blade 7 rotates, the air flow rate in the motor can be enhanced, and the effect of high-efficiency heat dissipation can be achieved.

[0040] The outer surface of the end cover 9 is fixedly provided with the circular block 16, and the inner part of the circular block 16 is threadedly sleeved with the screw rod 17.

[0041] Due to the threadedly sleeved connection between the inner part of the circular block 16 and the screw rod 17, when the screw rod 17 rotates along the inner part of the circular block 16, it will move along the inner part of the circular block 16.

[0042] One end of the screw rod 17 is fixedly provided with the twisting block 18, and the outer surface of the twisting block 18 is movably connected with the outer surface of the circular block 16.

[0043] Due to the design of the twisting block 18, the operator can drive the screw rod 17 to rotate by twisting the twisting block 18.

[0044] The other end of the screw rod 17 is fixedly installed with a clamping block 19, and the outer surface of the clamping block 19 is movably sleeved with the inner part of the end cover 9, the shell 11, the circular ring 13 and the fixed block 14.

[0045] When the screw rod 17 rotates along the inner part of the circular block 16, the clamping block 19 is driven to move, and when the outer surface of the clamping block 19 is sleeved with the inner part of the end cover 9, the shell 11, the circular ring 13 and the fixed block 14, the clamping block 19 will fix the connection of the end cover 9, the shell 11, the circular ring 13 and the fixed block 14 at this time.

[0046] The working principle and use process of the utility model are as follows:

[0047] Firstly, the operator places the rotating shaft 1 in the inner part of the shell 11, and when the left side of the baffle 4 is in contact with the right side of the circular ring 13 driven by the rotating shaft 1, the circular ring 13 will block the movement of the rotating shaft 1 at this time, and at the same time, the baffle 4 will be sleeved in the inner part of the shell 11, and at this time, the baffle 4 will drive the four fixed blocks 14 to move to the inner part of the circular ring 13, and due to the design of the inner part of the circular ring 13 and the four fixed blocks 14, the rotating shaft 1 will be well positioned, and then the operator will sleeve the end cover 9 on the outer surface of the shell 11, and due to the design of the four protrusions 12, the end cover 9 will be well positioned, and when the inner part of the end cover 9 is in contact with the right side of the baffle 4, the end cover 9 will be locked with the shell 11 at this time, and at the same time, the end cover 9 will make the rotating block 6 sleeved on the outer surface of the square block 5 through the fixed ring 8, and when the rotating shaft 1 rotates as a whole, the square block 5 will rotate, and at this time, the square block 5 will drive the fan blade 7 to rotate through the rotating block 6, and due to the design of the ventilation opening 15, the air in the inner part of the shell 11 and the end cover 9 can flow smoothly, and due to the design of the fan blade 7, the air flow in the inner part of the shell 11 and the end cover 9 can be accelerated when the fan blade 7 rotates, thereby efficiently cooling the inner part of the shell 11 and the end cover 9, and due to the design of the first bearing 3 and the second bearing 10, the rotating shaft 1 as a whole can be well supported.

[0048] Then the operator successively twists the four twisting blocks 18, at this time the screw rod 17 will rotate under the drive of the twisting blocks 18, since the outer surface of the screw rod 17 is sleeved with the internal thread of the circular block 16, when the screw rod 17 rotates along the inside of the circular block 16, it will drive the clamping block 19 to move towards the inside of the circular ring 13, in this process, the outer surface of the clamping block 19 will successively be sleeved in the inside of the end cover 9, the casing 11, the circular ring 13 and the fixed block 14, at this time the clamping block 19 will lock the movement of the end cover 9, the casing 11, the circular ring 13 and the fixed block 14, so as to achieve the effect of fixing the whole of the end cover 9, the casing 11 and the rotating shaft 1, and further realize the function of conveniently disassembling and assembling the motor.

[0049] It is to be understood that the terminology used herein such as first and second, and the like, is merely intended to differentiate one entity or action from another without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the use of the term "including", "containing" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements is not required to comprise only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0050] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the changes in form and details of the embodiments can be made by those skilled in the art without departing from the spirit and scope of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A micro brushed motor, characterized by, Include: The rotating shaft (1), the outer surface of the rotating shaft (1) is fixedly sleeved with the rotor (2), the right side of the outer surface of the rotating shaft (1) is provided with the first bearing (3), the outer surface of the first bearing (3) is provided with the baffle (4); The heat dissipation mechanism is arranged at the right end of the rotating shaft (1); Wherein, the heat dissipation mechanism includes a square block (5), the left side of the square block (5) is fixedly connected with the right end of the rotating shaft (1), the outer surface of the square block (5) is movably sleeved with a rotating block (6), the outer surface of the rotating block (6) is fixedly provided with a fan blade (7), the right side of the outer surface of the rotating block (6) is movably sleeved with a fixed ring (8), the outer surface of the fixed ring (8) is fixedly sleeved with an end cover (9), the inside of the end cover (9) is movably connected with the right side of the baffle (4).

2. A micro brushed motor according to claim 1, characterized in that: The left side of the outer surface of the rotating shaft (1) is provided with the second bearing (10), the outer surface of the second bearing (10) is provided with the casing (11), the outer surface of the casing (11) is movably sleeved with the inside of the end cover (9), the inside of the casing (11) is movably sleeved with the outer surface of the baffle (4).

3. A micro brushed motor according to claim 2, characterized in that: The outer surface of the casing (11) is fixedly provided with a protruding block (12), the outer surface of the protruding block (12) is movably connected with the outer surface of the end cover (9).

4. A micro brushed motor according to claim 2, characterized in that: The inside of the casing (11) is fixedly sleeved with a circular ring (13), the inside of the circular ring (13) is movably connected with a fixed block (14), the right side of the fixed block (14) is fixedly connected with the left side of the baffle (4).

5. A micro brushed motor according to claim 1, characterized in that: The outer surfaces of the baffle (4), the end cover (9) and the casing (11) are all provided with air vents (15).

6. A micro brushed motor according to claim 1, characterized in that: The outer surface of the end cover (9) is fixedly provided with a circular block (16), the inside of the circular block (16) is threadedly sleeved with a screw rod (17).

7. A micro brushed motor according to claim 6, characterized in that: One end of the screw rod (17) is fixedly provided with a twisting block (18), the outer surface of the twisting block (18) is movably connected with the outer surface of the circular block (16).

8. A micro brushed motor according to claim 6, characterized in that: The other end of the screw rod (17) is fixedly provided with a clamping block (19), the outer surface of the clamping block (19) is movably sleeved with the inside of the end cover (9), the casing (11), the circular ring (13) and the fixed block (14) respectively.

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