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Welded protective sleeve and magnetic suspension axial bearing

A technology for axial bearings and protective sleeves, applied in the field of bearings, can solve problems such as excessive solder and electrical safety, and achieve the effect of avoiding short circuits and improving electrical safety

Active Publication Date: 2020-02-18
GREE ELECTRIC APPLIANCES INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to provide a welding protective cover and a magnetic levitation axial bearing, which can overcome the electrical safety problem caused by too much solder when the lead wire and the PCB board are welded and fixed.

Method used

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  • Welded protective sleeve and magnetic suspension axial bearing
  • Welded protective sleeve and magnetic suspension axial bearing
  • Welded protective sleeve and magnetic suspension axial bearing

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Embodiment Construction

[0030] see in conjunction Figure 1 to Figure 11 As shown, according to the embodiment of the present invention, the welding shield includes a body 1, on which a wire hole 2 for leading out wires 11 is provided, and a counterbore 3 is provided on the side of the wire outlet end of the wire hole 2.

[0031] The counterbore 3 can form a space for solder. When the lead-out wire 11 passes through the wire hole 2 and the PCB board 9 for soldering, the counterbore 3 can form enough solder space at the bottom of the PCB 9, and the solder will flow into the counterbore. 3, the welding time will not be long due to the lack of space at the bottom, and the solder will not diffuse and flow to the surrounding area due to excessive solder, avoiding the short circuit and insufficient creepage distance caused by poor welding of the magnetic levitation axial bearing, and improving the magnetic levitation axial bearing. Electrical safety of bearings. The solder is, for example, solder.

[003...

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Abstract

The invention provides a welding protective sleeve and a magnetic suspension axial bearing. The welding protective sleeve comprises a body (1), wherein a wire passing hole (2) for leading out an outgoing wire (11) is formed in the body (1), and a counterbore (3) is formed in the peripheral side of the outgoing end of the wire passing hole (2). According to the welding protective sleeve provided bythe invention, the problem of electrical safety caused by too much solder when the outgoing wire is welded and fixed with the PCB board can be overcome.

Description

technical field [0001] The invention belongs to the technical field of bearings, and in particular relates to a welding protective sleeve and a magnetic suspension axial bearing. Background technique [0002] At present, the magnetic levitation axial bearing structure adopts that the coil lead wire is drawn out from the iron core slot, the skeleton and the lead wire waist hole are filled with silica gel, and the lead wire and the PCB board are connected together by welding. [0003] When welding the lead wire of the coil and the PCB board, during the soldering process, the soldering time is long and the amount of tin is too much. The tin will fill the gap along the PCB board and the silica gel, and the tin will easily exceed the pad, resulting in insufficient creepage of the lead wire or directly Short circuit, the internal soldering situation cannot be seen from the outside, and the bearing is in the process of running, which leads to sparking and blackening. Similar probl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C32/04
CPCF16C32/047F16C32/0476
Inventor 龚敏王周叶龙用民伍尚权黄积光周成海
Owner GREE ELECTRIC APPLIANCES INC