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Gain compensation slide potentiometers dustproof structure

A technology of sliding potentiometer and dust-proof structure, which is applied to the structural parts, instruments, and electrical components of electrical equipment, etc., can solve the problems of easy wear and tear of dust-proof paper, easy to fall off, and difficult to close the slits of dust-proof paper, etc. To achieve the effect of good resilience, reducing the process of materials and assembly

Active Publication Date: 2010-09-29
SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this kind of dust-proof structure has the following disadvantages: 1) the slit of the dust-proof paper is not easy to close after the sliding potentiometer lever is turned, and the dust-proof paper is easy to wear and tear, and it is easy to fall off, so it cannot achieve long-term dust-proof effect; 2) Add a material and add an assembly process in production

Method used

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  • Gain compensation slide potentiometers dustproof structure
  • Gain compensation slide potentiometers dustproof structure
  • Gain compensation slide potentiometers dustproof structure

Examples

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Embodiment Construction

[0018] see Figure 1 to Figure 6 The dust-proof structure of the gain compensation sliding potentiometer of the present invention is arranged on the control panel of the B-ultrasound equipment, and the control panel includes a panel cover 1, a PCB board 4, and an integrally formed button base 2 and a dust cover 3.

[0019] The panel cover 1 is provided with a plurality of slots 11 for passing through the sliding potentiometer lever. The PCB board 4 is provided with a button circuit, a plurality of positioning holes 41 and a sliding potentiometer lever area 42 , and the sliding potentiometer lever area 42 is provided with a plurality of sliding potentiometer levers 43 .

[0020] The button base 2 is made of silica gel, which is roughly in the shape of a thin plate and roughly the same shape as the PCB board 4 . The key base 2 has upper and lower surfaces 21 , 22 oppositely disposed, the upper surface 21 faces the panel cover 1 , and the lower surface 22 faces the PCB board 4 ....

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Abstract

The disclosed dustproof structure for slide potentiometer with gain compensation comprises: a silica gel substrate with key-press, and an integrated silica gel dustproof cover, wherein there is an accommodation slot between the cover and substrate, and slot for potentiometer rod. This invention has well dustproof effect, and reduces cost.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a dust-proof structure of a gain compensation sliding potentiometer applied to medical equipment. Background technique [0002] The dust-proof structure of the TGC (gain compensation) sliding potentiometer of the existing B-ultrasound equipment is to paste dust-proof paper on the back of the control panel cover. The material of the dust-proof paper is non-woven fabric, and there are slits on it. , When installed, the lever of the TGC sliding potentiometer passes through the slit and extends out of the control panel cover. But this kind of dust-proof structure has the following disadvantages: 1) the slit of the dust-proof paper is not easy to close after the sliding potentiometer lever is turned, and the dust-proof paper is easy to wear and tear, and it is easy to fall off, so it cannot achieve long-term dust-proof effect; 2) Add a material and add an assembly process in producti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K7/00A61B8/00H05K5/02H05K1/02G12B9/10
Inventor 肖训华黄力锋李超玲
Owner SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD