CN213125689U

CN213125689U - Brushless motor's casing fixed knot constructs

Info

Publication number: CN213125689U
Application number: CN202021853873.4U
Authority: CN
Inventors: 宓福建
Original assignee: Suzhou Ancient Times Intelligent Technology Co ltd
Current assignee: Suzhou Ancient Times Intelligent Technology Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-05-04
Anticipated expiration: 2030-08-31

Abstract

The utility model relates to a brushless motor's casing fixed knot constructs, including back lid, casing and support, the draw-in groove has been seted up on the outer border of the bottom of back lid, the top outer wall of casing evenly is equipped with three spliced pole, the top of spliced pole is equipped with the fixture block, fixture block and draw-in groove joint, adjacent two be equipped with the support fixed block before the spliced pole, the support mounting is in the inside of casing, the outside of support is equipped with three terminal fixed arm, the outer end bottom of terminal fixed arm is equipped with the fixing base, fixing base and support fixed block fixed connection. The utility model discloses in, back lid, casing, support three assembly back are fixed firm, and two liang of unable controls, prevent because of the skew appears in the vibration, make brushless motor internally mounted's stator rotor keep coaxial rotation, maintain brushless motor's normal operating condition, resist the vibration that stator rotor operation in-process produced, improve brushless motor's life.

Description

Brushless motor's casing fixed knot constructs

Technical Field

The utility model relates to a brushless motor technical field especially relates to a brushless motor's casing fixed knot constructs.

Background

When the brushless motor is installed, the PCB is fixed inside the machine shell by the rear cover, generally, the PCB needs to be fixed on the upper bracket through screws, and the upper bracket and the lower bracket are also fixed inside the machine shell. The shell of the existing brushless motor only provides a protection cover in the whole brushless motor, and the generated vibration can affect the structure inside the shell in the operation process of the stator and the rotor inside the shell, and can affect the service life of the motor when the mechanism inside the motor is not fixed firmly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a brushless motor's casing fixed knot constructs to solve the problem that meets among the above-mentioned background art.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a brushless motor's casing fixed knot constructs, includes back lid, casing and support, be fixed with the PCB board in the bottom inner chamber of back lid, the draw-in groove has been seted up on the bottom outer border of back lid, the top outer wall of casing evenly is equipped with three spliced pole, the top of spliced pole is equipped with the fixture block, fixture block and draw-in groove joint, adjacent two be equipped with the support fixed block before the spliced pole, be equipped with the space between support fixed block and the spliced pole, the support mounting is in the inside of casing, the outside of support is equipped with three terminal fixed arm, and is three fixed arm terminal is chevron shape structure, the outer end bottom of terminal fixed arm is equipped with the fixing base, fixing base and support fixed block fixed.

In the scheme, the height of the connecting column is higher than that of the bracket fixing block.

In the above scheme, the spliced pole is isosceles trapezoid shape structure, be equipped with the screw post on the inner wall of spliced pole.

In the above scheme, the support fixed block is of a rectangular structure, the outer wall of the support fixed block is flush with the outer wall of the casing, and the support fixed block and the casing are of an integrated structure.

In the scheme, one side of the fixing seat is provided with an auxiliary hole, one side of the top of the support fixing block is fixedly provided with an auxiliary positioning lug, the diameter of the auxiliary positioning lug is matched with the inner diameter of the auxiliary hole, and the auxiliary positioning lug is sleeved in the auxiliary hole after being installed.

In the above scheme, the fixture block is of an L-shaped structure, the outer wall of the fixture block is flush with the outer wall of the casing, and the fixture block and the casing are of an integrated structure.

Compared with the prior art, the beneficial effects of the utility model are that: the casing can not only provide the effect of protecting the dustcoat for brushless motor, the top outer wall of casing evenly is equipped with three spliced pole, the back lid joint fixed connection of three spliced pole and motor, both fix a position accurately, constitute triangle fixed knot structure, reinforcing brushless motor's stability, be equipped with the support fixed block before two adjacent spliced poles, three support fixed block altogether, the terminal fixed arm fixed connection of support fixed block and support, also constitute triangle fixed knot structure, further reinforcing brushless motor's stability. Rear cover, casing, support three assembly back are fixed firm, and two liang can't remove about, prevent because of the skew appears in the vibration, make brushless motor internally mounted's stator rotor keep coaxial rotation after the three is fixed firm, maintain brushless motor's normal operating condition, resist the vibration that stator rotor operation in-process produced, improve brushless motor's life.

Drawings

The disclosure of the present invention is explained with reference to the drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the invention. In the drawings, like reference numerals are used to refer to like parts. Wherein:

FIG. 1 is a schematic structural view of the present invention in practice;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic view of the structure of the middle and rear covers of the present invention;

FIG. 4 is a schematic view of the structure of the middle housing of the present invention;

fig. 5 is a schematic view of the structure of the middle support of the present invention.

Reference numbers in the figures: 1-rear cover; 11-a card slot; 12-a PCB board; 2-a housing; 21-connecting column; 22-support fixing block; 23-voids; 24-screw posts; 25-a fixture block; 26-auxiliary positioning bumps; 3-a scaffold; 31-a terminal retention arm; 32-a fixed seat; 33-auxiliary wells.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the invention only in a schematic way, and therefore they show only the relevant components of the invention.

According to the technical scheme of the utility model, under the essential spirit of the utility model, general technical personnel in this field can propose the multiple structural style and the realization that can replace each other. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present invention, and should not be considered as limiting or restricting the technical solutions of the present invention in their entirety or in any other way.

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and embodiments.

As shown in fig. 1, a casing fixing structure of a brushless motor comprises a rear cover 1, a casing 2 and a bracket 3, wherein a PCB board 12 is fixed in an inner cavity of the bottom of the rear cover 1 through screws, a clamping groove 11 is formed in the outer edge of the bottom of the rear cover 1, and the clamping groove 11 is rectangular and provided with a notch for connecting with the casing 2.

The top outer wall of casing 2 evenly is equipped with three spliced pole 21, and spliced pole 21 is isosceles trapezoid shape structure, is equipped with screw post 24 on spliced pole 21's the inner wall, and back lid 1 can be fixed in screw post 24 through the long screw. The top of spliced pole 21 is equipped with fixture block 25, and fixture block 25 and draw-in groove 11 joint make both can't remove about both after the joint, prevent because of the skew appears in the vibration, and fixed firm location is accurate, cooperates original long screw fixed knot structure again, makes both firm fixed together.

Fixture block 25 is L type structure, and a side can play the effect of increase joint area, and the outer wall of fixture block 25 flushes with the outer wall of casing 2, fixture block 25 and casing 2 formula structure as an organic whole. The support fixing blocks 22 are arranged in front of the two adjacent connecting columns 21, the support fixing blocks 22 are of rectangular structures, the outer walls of the support fixing blocks 22 are flush with the outer wall of the machine shell 2, and the support fixing blocks 22 and the machine shell 2 are of an integrated structure. No matter the connecting column 21 or the bracket fixing block 22 is a part of the integrated machine shell 2, the overall stability of the brushless motor body can be kept through the integrated design.

A gap 23 is arranged between the bracket fixing block 22 and the connecting column 21, and heat generated by the rotor and the stator in the brushless motor during working can be dissipated through the gap 23. Compared with the existing brushless motor, the heat dissipation of the brushless motor is realized by rotating the driving impeller to form vortex to dissipate heat, and the structure for dissipating heat from the gap 23 further increases a heat dissipation mode of the brushless motor and improves the operation state of the brushless motor during work. The height dimension of the connecting column 21 is higher than that of the bracket fixing block 22, the connecting column 21 is higher than the bracket fixing block 22, mainly the connecting column 21 is used for being connected with the rear cover 1, and the bracket fixing block 22 is used for being connected with the bracket 3.

The support 3 is installed in the inside of the casing 2, three terminal fixing arms 31 are arranged on the outer side of the support 3, the three terminal fixing arms 31 are in a herringbone structure, the three terminal fixing arms 31 are uniformly distributed, and an included angle between every two adjacent terminal fixing arms 31 is 120. The outer end bottom of terminal fixed arm 31 is equipped with fixing base 32, and fixing base 32 and support fixed block 22 fixed connection, when implementing, generally run through the top and the bottom of fixing base 32 through the screw, connect support fixed block 22 again fixedly together to strengthen the fastness of both connections.

As a preferable scheme, one side of the fixing seat 32 is provided with an auxiliary hole 33, one side of the top of the bracket fixing block 22 is fixed with an auxiliary positioning lug 26, the diameter of the auxiliary positioning lug 26 is matched with the inner diameter of the auxiliary hole 33, and the auxiliary positioning lug 26 is sleeved in the auxiliary hole 33 after being installed. In order to facilitate the sheathing penetration, the top of the auxiliary positioning lug 26 is of a semi-circular structure.

The utility model discloses in, casing 2 can not only provide the effect of protecting the dustcoat for brushless motor, casing 2's top outer wall evenly is equipped with three spliced

pole

21, 1 joint fixed connection of back lid of three spliced pole 21 and motor, both fix a position accurately, constitute triangle fixed knot and construct, strengthen brushless motor's stability, be equipped with support fixed block 22 before two adjacent spliced poles 21, totally three support fixed block 22, support fixed block 22 and support 3's terminal fixed arm 31 fixed connection, also constitute triangle fixed knot and construct, further strengthen brushless motor's stability. Rear cover 1,

casing

2, 3 three of support assembly back are fixed firm, and two liang can't remove about, prevent because of the skew appears in the vibration, make brushless motor internally mounted's stator rotor keep coaxial rotation after the three is fixed firm, maintain brushless motor's normal operating condition, resist the vibration that stator rotor operation in-process produced, improve brushless motor's life.

The above-mentioned embodiments further explain in detail the objects, technical solutions and advantages of the present invention, and it should be understood that the above-mentioned embodiments are only the embodiments of the present invention, and are not intended to limit the scope of the present invention, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the scope of the present invention.

Claims

1. The utility model provides a brushless motor's casing fixed knot constructs, includes back lid (1), casing (2) and support (3), be fixed with PCB board (12), its characterized in that in the bottom inner chamber of back lid (1): draw-in groove (11) have been seted up on the bottom outer fringe of back lid (1), the top outer wall of casing (2) evenly is equipped with three spliced pole (21), the top of spliced pole (21) is equipped with fixture block (25), fixture block (25) and draw-in groove (11) joint, adjacent two be equipped with support fixed block (22) before spliced pole (21), be equipped with space (23) between support fixed block (22) and spliced pole (21), the inside at casing (2) is installed in support (3), the outside of support (3) is equipped with three terminal fixed arm (31), and is three terminal fixed arm (31) are chevron shape structure, the outer end bottom of terminal fixed arm (31) is equipped with fixing base (32), fixing base (32) and support fixed block (22) fixed connection.

2. The cabinet fixing structure of the brushless motor as claimed in claim 1, wherein: the height dimension of the connecting column (21) is higher than that of the bracket fixing block (22).

3. The structure of claim 2, wherein: the spliced pole (21) are isosceles trapezoid shape structure, be equipped with screw post (24) on the inner wall of spliced pole (21).

4. The structure of claim 2, wherein: the support fixing block (22) is of a rectangular structure, the outer wall of the support fixing block (22) is flush with the outer wall of the machine shell (2), and the support fixing block (22) and the machine shell (2) are of an integrated structure.

5. A casing fixing structure of a brushless motor according to claim 3, wherein: an auxiliary hole (33) is formed in one side of the fixed seat (32), an auxiliary positioning lug (26) is fixed on one side of the top of the support fixed block (22), the diameter of the auxiliary positioning lug (26) is matched with the inner diameter of the auxiliary hole (33), and the auxiliary positioning lug (26) is sleeved in the auxiliary hole (33) after being installed.

6. The cabinet fixing structure of the brushless motor as claimed in claim 1, wherein: the clamping block (25) is of an L-shaped structure, the outer wall of the clamping block (25) is flush with the outer wall of the machine shell (2), and the clamping block (25) and the machine shell (2) are of an integrated structure.