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Motor

A motor and shaft tube technology is applied in the field of motors that can prevent the shaft tube from being deformed, and can solve the problem that the stator is prone to excessive pressure on the shaft tube and the like

Active Publication Date: 2013-09-04
SUNONWEALTH ELECTRIC MACHINE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a motor to solve the problem that the stator of the existing motor tends to excessively compress the shaft tube during assembly

Method used

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Embodiment approach

[0051] Please refer to Figure 4 , 5 And 6 show the first embodiment of the tight fitting portion 4 and the adjustment gap 5. The tight-fitting portion 4 may be at least one convex portion (such as a rib, a protrusion, or other structural design with the same function) formed on the inner hole wall of the assembly hole 21, and the shaft tube 11 has an outer portion in the radial direction. Tube diameter D, with the help of the design of the at least one convex portion, the minimum diameter of the assembly hole 21 is smaller than the outer tube diameter D of the shaft tube 11, so that the stator assembly 2 can be more closely combined with the outer peripheral wall of the shaft tube 11 111; In addition, in this embodiment, the protrusion is a rib 211 design, there are two ribs 211 (only one can be selected as required), and the two ribs 211 can extend axially in the assembly hole 21 The protruding rib 211 abuts against the outer peripheral wall 111 of the shaft tube 11, the cont...

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Abstract

The invention provides a motor which at least comprises a base, a stator assembly and a rotor, wherein the base is provided with a shaft tube, and the shaft tube is provided with a peripheral wall; the stator assembly is combined with the shaft tube of the base and is provided with an assembling hole, a plurality of close fit parts are formed between the inner side hole wall of the assembling hole and the peripheral wall of the shaft tube, and an adjusting gap is respectively arranged between the close fit parts; and the rotor is provided with a central shaft which is rotatably combined with the shaft tube of the base. By means of the simple structural design of the adjusting gap, the problem that the shaft tube has high possibility of being excessively oppressed by the stator assembly is solved.

Description

Technical field [0001] The invention relates to a motor, in particular to a motor that can prevent deformation of a shaft tube. Background technique [0002] The existing motors commonly available on the market can be roughly divided into motors with metal shaft tubes and motors with plastic shaft tubes. [0003] Please refer to figure 1 As shown, for example, the patent case of "Metal Tube and Bearing Structure of Radiator Fan Motor" from Taiwan Announcement No. 384947, discloses a motor with a metal shaft tube. The conventional motor 7 combines a metal shaft tube 71 with a housing 72 and has a stator seat 73 tightly fitted to the outer peripheral wall of the metal shaft tube 71; in addition, the metal shaft tube 71 is provided with several bearings 74. The bearings 74 can be pivotally connected to a rotor 75. [0004] However, in the actual assembly process, the stator base 73 is generally coupled to the outer peripheral wall of the metal shaft tube 71 in a tight-fitting manner. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/18H02K7/08H02K15/14
Inventor 洪银树
Owner SUNONWEALTH ELECTRIC MACHINE IND
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