CN210273661U

CN210273661U - Permanent magnet brushless direct current motor with excellent waterproof performance

Info

Publication number: CN210273661U
Application number: CN201921431460.4U
Authority: CN
Inventors: 谢志峰
Original assignee: Jiangxi Tongjin Electronic Technology Co Ltd
Current assignee: Jiangxi Tongjin Electronic Technology Co Ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-04-07
Anticipated expiration: 2029-08-30

Abstract

The utility model relates to the technical field of electric equipment, in particular to a permanent magnet brushless direct current motor with excellent waterproof performance; including motor body, including the cylindric casing that is used for nested installation motor body, install multiunit matched with screw and bolt between the casing of cylindric casing and motor body, the blind end integrated into one piece of cylindric casing has rather than coaxial waterproof section of thick bamboo, and waterproof section of thick bamboo is located cylindric casing outer end, the annular groove has been seted up to the terminal surface of the blind end of cylindric casing not, this end outward flange circumference is provided with a plurality of collars simultaneously, the cylindric casing has the apron through the fixed grafting of annular groove and collar cooperation, set up the T type through-hole that is used for the power cord to wear out on the apron, and T type through-hole department has plugged in rubber seal ring, install the heat radiation fins that a plurality of circumference set up on the outer wall of cylindric casing, the utility model discloses improve the waterproof performance of motor widely.

Description

Permanent magnet brushless direct current motor with excellent waterproof performance

Technical Field

The utility model relates to an electrical equipment technical field, concretely relates to permanent magnet brushless DC motor that waterproof performance is excellent.

Background

The permanent magnet direct current motor can be divided into a permanent magnet brushless direct current motor and a permanent magnet brush direct current motor according to the existence of a brushless direct current motor, the permanent magnet direct current motor is a direct current motor which uses a permanent magnet to establish a magnetic field, the permanent magnet direct current motor is widely applied to various portable electronic equipment or appliances, such as a recorder, a VCD (video recorder), a phonograph, an electric massager and various toys, also is widely applied to industries of automobiles, motorcycles, hand dryers, electric bicycles, storage battery cars, ships, aviation, machinery and the like, and also is widely applied to some high-precision products, such as a video recorder, a copier, a camera, a mobile phone, a precision machine tool, a bank note counter, a bank note binding machine and the like.

In the use process of the permanent magnet direct current motor, a severe use environment is often required to be faced, but the motor in the prior art has poor waterproof performance, so that the use range of the motor is further reduced, and the applicability is poor.

SUMMERY OF THE UTILITY MODEL

Solves the technical problem

To the above-mentioned shortcoming that prior art exists, the utility model provides a brushless DC motor of permanent magnetism that waterproof performance is excellent can solve prior art's motor waterproof performance relatively poor effectively, and then has reduced its application range, the relatively poor problem of suitability.

Technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the utility model provides a brushless DC motor of permanent magnetism that waterproof performance is excellent, includes motor body, including the cylindric casing that is used for nested installation motor body, and cylindric casing wherein one end is the closed form, install multiunit matched with screw and bolt between the casing of cylindric casing and motor body, the blind end integrated into one piece of cylindric casing has rather than coaxial waterproof section of thick bamboo, and waterproof section of thick bamboo is located cylindric casing outer end, the annular groove has been seted up to the terminal surface of the blind end of cylindric casing not, and this end outward flange circumference is provided with a plurality of collars simultaneously, the cylindric casing has the apron through fixed the grafting of annular groove and collar cooperation, set up the T type through-hole that is used for the power cord to wear out on the apron, and T type through-hole department has plugged in the rubber seal ring, install the heat radiation fins that a plurality of.

Furthermore, a sealing adhesive is bonded on the inner end face of the annular groove, so that the sealing performance of the annular groove is enhanced.

Furthermore, the output shaft of the motor body is partially sleeved with the rubber ring, the rubber ring is close to the end part of the waterproof barrel, and the part can be blocked from entering the cylindrical shell from the waterproof barrel to a certain extent.

Furthermore, a group of symmetrically arranged mounting seats are welded at the bottom of the cylindrical shell, so that the permanent magnet direct current motor can be conveniently mounted.

Furthermore, waterproof breathable films are bonded on the outer surfaces of the cylindrical shell and the cover plate, so that the waterproof performance is enhanced.

Advantageous effects

Adopt the utility model provides a technical scheme compares with known public technique, has following beneficial effect:

1. the utility model discloses an install the cylindric casing outside motor body to be connected with the apron that is used for sealing in the one end of cylindric casing, it has sealed gluing agent to bond simultaneously between apron and the cylindric casing, makes the motor can seal up, and heat radiation fins can compensate conventional heat dissipation simultaneously, has improved the waterproof performance of motor widely, has enlarged its applicable environment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic view of a first perspective of an explosive structure according to the present invention;

fig. 2 is a schematic view of a second perspective of the explosive structure of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure of the T-shaped through hole of the present invention;

fig. 4 is a schematic structural view of the motor body and the cylindrical housing of the present invention when combined;

the reference numerals in the drawings denote: 1-a motor body; 2-a cylindrical housing; 201-annular groove; 3-screw holes; 4-mounting a base; 5-a waterproof cylinder; 6-mounting a ring; 7-cover plate; 701-T-shaped through holes; 8-a rubber sealing ring; 9-radiating fins; 10-rubber ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention will be further described with reference to the following examples.

Examples

The permanent magnet brushless dc motor with excellent waterproof performance of the present embodiment refers to fig. 1 to 4: including motor body 1, its characterized in that: including the cylindric casing 2 that is used for nested installation motor body 1, and cylindric casing 2 wherein one end is the closed form, install multiunit matched with screw 3 and bolt between cylindric casing 2 and motor body 1's the casing, the blind end integrated into one piece of cylindric casing 2 has rather than coaxial waterproof section of thick bamboo 5, and waterproof section of thick bamboo 5 is located cylindric casing 2 outer end, annular groove 201 has been seted up to the terminal surface of the blind end of cylindric casing 2, this end outward flange circumference is provided with a plurality of collars 6 simultaneously, cylindric casing 2 has apron 7 through fixed the grafting of annular groove 201 and collar 6 cooperation, offer the T type through-hole 701 that is used for the power cord to wear out on the apron 7, and T type through-hole 701 department has plugged in rubber seal ring 8, install the heat radiation fins 9 that a plurality of circumferences set up on the outer.

Wherein, sealed gluing agent has been bonded to the interior terminal surface of annular groove 201, and the output shaft of motor body 1 exposes the part and has cup jointed rubber ring 10, and rubber ring 10 is close to the tip of waterproof section of thick bamboo 5, and the bottom welding of cylindric casing 2 has the mount pad 4 of a set of symmetry setting, and the surface bonding of cylindric casing 2 and apron 7 has waterproof ventilated membrane.

When the waterproof motor is used, the motor body 1 is firstly embedded into an installation cavity which is formed in the cylindrical shell 2 in a matching mode, the screw hole 3 of the cylindrical shell 2 is aligned with the screw hole 3 on the shell of the motor body 1, and the gap of the output shaft of the motor body 1 penetrates out of the waterproof cylinder which is arranged on the other end face of the cylindrical shell 2, then the cylindrical shell 2 and the motor body 1 are fixed together by screwing the screw hole 3 into a bolt, and rubber sealing rings are arranged between the screw hole 3 and the bolt, so that a waterproof effect is achieved; then, a power line of the motor body 1 penetrates through a T-shaped through hole 701 formed in a cover plate 7, a rubber sealing ring 8 is tightly sleeved on the power line, the rubber sealing ring 8 is plugged into the T-shaped through hole 701, and the rubber sealing ring 8 plays a role in sealing and preventing water for the T-shaped through hole 701; then, the inner side surface of the cover plate 7 and the annular groove 201 of the cylindrical shell are inserted into the annular groove 201 corresponding to the integrally formed annular protrusion, meanwhile, a sealing adhesive is bonded on the inner end surface of the annular groove 201, the sealing adhesive is helpful for bonding the annular protrusion of the cover plate 7 and the annular groove 201 together, meanwhile, the sealing adhesive can also play a role in sealing and waterproofing, when the cover plate 7 is clamped into the cylindrical shell 2, the mounting ring 6 of the cylindrical shell 2 needs to be aligned with the mounting ring 6 of the cover plate 7, the cover plate 7 and the cylindrical shell 2 are further fixed through the matching of bolts and nuts, the whole motor body 1 and the cylindrical shell 2 can be mounted through the steps, the waterproof performance of the motor body 1 is greatly improved through the sealing effect of the cylindrical shell 2, and meanwhile, the plurality of radiating fins 9 positioned on the outer wall of the cylindrical shell 2 can compensate the conventional radiating performance required by the motor body 1 to a certain extent, the installation of motor body 1 can be made things convenient for at 2 fixed mount pads 4 in the bottom of cylindric casing, and the output shaft of motor body 1 has cup jointed rubber ring 10 in the outer end of waterproof section of thick bamboo 5, can prevent to a certain extent that the water splashes in waterproof section of thick bamboo 5.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a permanent magnetism brushless DC motor that waterproof performance is excellent, includes motor body (1), its characterized in that: the motor comprises a cylindrical shell (2) used for nesting and installing a motor body (1), wherein one end of the cylindrical shell (2) is closed, a plurality of groups of matched screw holes (3) and bolts are installed between the cylindrical shell (2) and the shell of the motor body (1), a waterproof barrel (5) coaxial with the cylindrical shell is integrally formed at the closed end of the cylindrical shell (2), the waterproof barrel (5) is positioned at the outer end of the cylindrical shell (2), an annular groove (201) is formed in the end face of the cylindrical shell (2) which is not closed, a plurality of mounting rings (6) are circumferentially arranged at the outer edge of the end of the cylindrical shell, a cover plate (7) is fixedly inserted and connected with the cylindrical shell (2) in a matched mode through the annular groove (201) and the mounting rings (6), a T-shaped through hole (701) used for a power line to penetrate out is formed in the cover plate (7), and a rubber sealing ring (8) is, and a plurality of radiating fins (9) arranged circumferentially are mounted on the outer wall of the cylindrical shell (2).

2. The permanent magnet brushless direct current motor with excellent waterproof performance according to claim 1, wherein a sealing adhesive is bonded to an inner end surface of the annular groove (201).

3. The permanent magnet brushless direct current motor with excellent waterproof performance according to claim 1, wherein a rubber ring (10) is sleeved on an exposed part of an output shaft of the motor body (1), and the rubber ring (10) is close to the end part of the waterproof cylinder (5).

4. The permanent magnet brushless direct current motor with excellent waterproof performance according to claim 1, characterized in that a set of symmetrically arranged mounting seats (4) is welded at the bottom of the cylindrical shell (2).

5. The permanent magnet brushless direct current motor with excellent waterproof performance according to claim 1, wherein waterproof breathable films are bonded to the outer surfaces of the cylindrical shell (2) and the cover plate (7).