CN210806883U

CN210806883U - Motor structure

Info

Publication number: CN210806883U
Application number: CN201922076204.4U
Authority: CN
Inventors: 林家维; 洪宗宇
Original assignee: Tricore Corp
Current assignee: Tricore Corp
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-06-19
Anticipated expiration: 2029-11-27

Abstract

The application provides a motor structure, comprising a shell group with an accommodating space; the stator group is provided with a winding shaft shell and is arranged in the accommodating space; and a rotor set arranged in the bobbin case, the rotor set comprising an axis and a magnet, the axis passing through the magnet, and two ends of the axis protruding out of the case set, wherein two ends of the axis are respectively connected with an end cover bearing and a bottom cover bearing, the end cover bearing and the bobbin case are integrally formed, the bottom cover bearing is detachably arranged in the case set, and the arrangement can improve the concentricity of the motor.

Description

Motor structure

Technical Field

The present application relates to a motor structure, and more particularly, to a motor structure capable of improving concentricity.

Background

The motor structure of the prior art mainly comprises a housing group, a rotor group and a stator group, wherein the rotor group is positioned by an upper bearing and a lower bearing which are arranged at two sides of the housing group, the arrangement can form two positioning references, the problem of poor concentricity is easily generated during assembly, and the problems of unsmooth operation and noise of the motor are caused.

SUMMERY OF THE UTILITY MODEL

In view of the above, a primary object of the present invention is to provide a motor structure capable of surely improving concentricity of a rotor assembly after assembly.

In view of the above, the present application provides a motor structure including a housing set, a stator set and a rotor set. The shell group is provided with an upper shell and a lower shell which can be mutually assembled to form an accommodating space; the stator group is provided with a winding shaft shell arranged in the accommodating space; the rotor set comprises an axis and a magnet, the magnet is arranged in the winding shaft shell, the axis penetrates through the magnet, two ends of the axis protrude out of the shell set, two ends of the axis are respectively connected with an end cover bearing and a bottom cover bearing, the end cover bearing and the winding shaft shell are integrally formed, and the bottom cover bearing is detachably arranged in the shell set.

The bobbin case is convexly provided with two positioning parts for positioning the upper case and the lower case, the upper case and the lower case are both provided with a plurality of positioning claws which are arranged at intervals, and the inner wall of the bobbin case is provided with a plurality of positioning grooves, so that the positioning claws are embedded in the positioning grooves.

Preferably, the stator assembly further includes a stator core disposed in the bobbin case, and the stator core has a plurality of pole claws extending toward the outer sides of the stator core.

Preferably, an end cover and a bottom cover are respectively installed at the outer openings of the upper shell and the lower shell.

Further details regarding other functions and embodiments of the present application are described below with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be 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 described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of a motor structure;

FIG. 2 is an exploded view of the components of the motor structure;

FIG. 3 is a schematic view of a spool housing;

fig. 4 is a cross-sectional view of the motor structure.

Description of the symbols

10: motor 11: end cap 12: bottom cover

14: end cover bearing 15: bottom cover bearing 16: upper shell

161: positioning pawl 17: the lower case 171: positioning claw

21: bobbin case 211: positioning portion 212: positioning groove

22: stator core 222: the pole claw 31: magnet

32: axial center

Detailed Description

In order to specifically describe the embodiments and achieve the effects of the present application, an embodiment is provided and described below with reference to the drawings.

Referring to fig. 1 to 4, a motor 100 is shown, which includes a housing set, a stator set and a rotor set. The housing assembly has an upper housing 16 and a lower housing 17 which can be assembled into a hollow cylinder to form an accommodating space, and an end cap 11 and a bottom cap 12 are respectively mounted on the outer openings of the upper housing 16 and the lower housing 17.

Referring to fig. 2, the stator assembly is disposed in the accommodating space, and includes a bobbin case 21 having a tubular shape, and a stator core 22 disposed in the bobbin case 21, wherein the stator core 22 has a plurality of pole claws 222 extending toward the outer sides of the stator core 22.

The rotor set comprises a shaft 32 and a magnet 31, the magnet 31 is disposed in the bobbin case 21, the shaft 32 penetrates the magnet 31, and two ends of the shaft 32 protrude out of the case set; wherein, two ends of the rotor set shaft center 32 are respectively connected with an end cover bearing 14 and a bottom cover bearing 15.

In this embodiment, the end cap bearing 14 and the bobbin case 21 are formed by injection molding of plastic, and the bottom cap bearing 15 is installed at the center of the bottom cap 12. Therefore, in the assembly process of the motor 100, the end cover bearing 14 integrated with the bobbin case 21 can be used as a positioning reference, so as to reduce the sliding of the shaft 32 during positioning, thereby improving the concentricity of the motor.

In this embodiment, the number of the pole claws 222 is eight, and four pole claws 222 form a group and extend to two sides respectively, and the inner wall of the bobbin case 21 is further provided with a plurality of positioning grooves 212 respectively located between two adjacent pole claws 222.

In the present embodiment, the bobbin case 21 is protruded with two positioning portions 211, and the upper case 16 and the lower case 17 are engaged with the positioning portions 211 of the bobbin case 21 at the same time when they are assembled correspondingly. The upper housing 16 and the lower housing 17 each have a plurality of positioning claws 161,171 arranged at intervals for being engaged in the positioning grooves 212, so that the housing set and the stator set are assembled together.

The assembly process of the motor 100 is to install the rotor set in the bobbin case 21, and one end of the shaft center 32 is inserted into the end cap bearing 14, and then the end cap bearing 14 is used as a positioning reference, and the bottom cap bearing 15 is installed at the other end of the shaft center 32, and the case set is installed, so that the assembly process is simpler, and the effect of fast assembly is achieved.

In this embodiment, the bottom cover bearing 15 is detachably disposed, and in other embodiments, the bottom cover bearing 15 may be integrally formed with the bobbin case 21.

The above-described embodiments and/or implementations are only illustrative of the preferred embodiments and/or implementations for implementing the technology of the present application, and are not intended to limit the implementations of the technology of the present application in any way, and those skilled in the art can make many changes or modifications to the equivalent embodiments without departing from the scope of the technology disclosed in the present application, but should still be considered as the technology or implementations substantially the same as the present application.

Claims

1. A motor structure comprises a shell group with a containing space; the stator group is provided with a winding shaft shell and is arranged in the accommodating space; and a rotor group sets up in this spool shell, and an end cover bearing and a bottom bearing, its characterized in that are connected respectively to two ends of an axle center of this rotor group: the end cover bearing and the winding shaft shell are integrally formed.

2. The motor structure of claim 1, wherein the housing set has an upper housing and a lower housing that can be assembled with each other, and the upper housing and the lower housing have a plurality of positioning claws arranged at intervals.

3. The motor structure of claim 2, wherein the outer openings of the upper and lower housings are respectively provided with an end cap and a bottom cap.

4. The motor structure as claimed in claim 2, wherein the bobbin case has a plurality of positioning grooves on an inner wall thereof, and the positioning claws are fitted in the positioning grooves.

5. The motor structure as claimed in claim 2, wherein the bobbin case is protruded with two positioning portions for positioning the upper case and the lower case.

6. The motor structure of claim 1, wherein the stator assembly includes a stator core disposed in the bobbin case, and the stator core has a plurality of pole fingers extending toward opposite outer sides of the stator core, respectively.

7. The motor structure of claim 1, wherein the rotor assembly comprises a magnet, the shaft is disposed through the magnet, and two ends of the shaft protrude from the housing assembly.

8. The motor structure according to any one of claims 1 to 7, wherein the bottom cover bearing is detachably disposed on the housing set.