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DC fan for vibration impact environment

A DC fan, shock environment technology, applied in the direction of connection with the control/drive circuit, etc., can solve problems such as failure, coil wire breakage, etc., to achieve the effect of reducing the failure rate of the fan

Inactive Publication Date: 2018-02-02
BEIJING INST OF COMP TECH & APPL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention discloses a DC fan used in a vibration and impact environment, which is used to solve the failure problem of the existing DC fan caused by the breakage of the coil wire in the vibration environment process

Method used

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  • DC fan for vibration impact environment
  • DC fan for vibration impact environment

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Embodiment Construction

[0017] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] figure 1 Shown is the schematic diagram of the DC blower used in the vibration shock environment of the present invention, figure 2 shown as figure 1 bottom view, such as figure 1 as well as figure 2 As shown, the DC fan of the present invention suitable for vibration and shock environment includes: stator part 4 , stator bracket 3 , printed board 1 , stator coil wire 5 and insulating sealant 2 .

[0019] like figure 1 as well as figure 2 As shown, the printed board 1 and the stator bracket 3 are fixed. The circuit of the DC fan is arranged on the printed board 1 , the edge of the printed board 1 is provided with a notch 7 connecting the stator coil wire 5 , and one end of the stator coil wire 5 is conn...

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PUM

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Abstract

The invention discloses a DC fan for a vibration impact environment. The DC fan comprises a stator part, a stator support, a printed board, a stator coil wire and an insulation sealant, wherein the printed board is fixed with one end of the stator support, the stator part is fixed with the other end of the stator support, one segment of the stator coil wire is connected with the stator part, the other end of the stator coil wire is fixed with an edge of the printed board, a circuit of the DC fan is arranged on the printed board, and the insulation sealant covers a connection position of the edge of the printed board and the stator coil wire. The fan is applicable to the vibration impact environment, and the fan failure rate caused by breakage of the coil wire under a vibration environmentcan be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of DC fans, in particular to a DC fan suitable for vibration and impact environments. Background technique [0002] The existing DC fan is fixed in the fan casing by bayonet through the internal printed board. There is a certain gap between the bayonet and the printed board, and the wire end of the fan coil is directly welded on the printed board. This type of fan is generally only suitable for road transportation with a small vibration level. When it is applied to a more severe vibration environment, the vibration amplitude of the printed board will increase, which will easily cause the coil wire to break at the solder joint and cannot work reliably. . In the process of vibration environment, the number of failures caused by broken coil wires accounts for 90% of the failures of the entire fan. Contents of the invention [0003] The invention discloses a DC blower used in a vibration and impact environme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/30
Inventor 罗剑锋
Owner BEIJING INST OF COMP TECH & APPL