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Movable device having drop resistive protection

A technology of moving range and mass block, applied in measuring devices, microstructure devices, microstructure devices composed of deformable elements, etc. problem, to achieve good protection function, good impact resistance and drop resistance, and improve the effect of drop resistance protection function

Inactive Publication Date: 2015-03-18
吴名清 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, as the size of the micro-electromechanical accelerometer continues to shrink, the dimensional error generated when the first base body 56b and the second base body 56c are glued to the connecting portion 56a through the adhesive material 58a and the adhesive material 58b will make the distance G1 and gap G2 are difficult to be formed accurately, and cannot reliably achieve the anti-drop protection function, especially in the lateral direction without anti-drop mechanism, which is the main failure mode of the product

Method used

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  • Movable device having drop resistive protection
  • Movable device having drop resistive protection
  • Movable device having drop resistive protection

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Embodiment Construction

[0047] image 3 is a schematic cross-sectional view of a movable device according to an embodiment of the present invention. Figure 4 yes image 3 A top view of some components of the movable device. Please refer to image 3 and Figure 4 , the movable device 100 of this embodiment is, for example, a microelectromechanical accelerometer and includes a base 110 , a mass 120 and a plurality of elastic parts 130 . The base 110 includes a first base body 112 , a second base body 114 and a connecting portion 116 , and the connecting portion 116 is fixed between the first base body 112 and the second base body 114 . The mass block 120 is located between the first seat body 112 and the second seat body 114 and has a plurality of side faces 120a and opposite end faces, and the two end faces are the top face 120b and the bottom face 120c of the mass block 120 and are perpendicular to each side face 120a .

[0048] The elastic portions 130 are respectively connected to the side s...

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Abstract

A movable device including a base, a mass, a plurality of elastic portions and at least one block structure is provided. The mass has a plurality of side surfaces. The elastic portions are connected to the side surfaces respectively and connected to the base, where the mass is adapted to move such that the elastic portions are elastically deformed. The block structure is disposed at the base and aligned to at least one of the side surfaces, wherein the block structure is adapted to block the corresponding side surface to limit a moving range of the mass.

Description

technical field [0001] The present invention relates to a movable device, and in particular relates to a movable device with the function of anti-drop protection. Background technique [0002] In recent years, benefited from smart phones (smart phone), tablet PC (tablet PC) and somatosensory game consoles and other related electronic products, micro-electromechanical (MEMS) inertial sensors, such as accelerometer (accelerometer) and gyroscope (gyroscope) ), etc., are widely used in these electronic products, making their market demand grow substantially year by year. Under the multi-party competition in the market, the quality requirements of micro-electromechanical inertial sensor-related application products have also increased. For piezo-resistive accelerometers, the acceleration of the device is measured through the resistance change of its internal elements. [0003] figure 1 It is a schematic cross-sectional view of an existing MEMS accelerometer. figure 2 yes fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P1/00G01C19/56
CPCB81B2201/0235B81B7/0058B81B3/0051
Inventor 吴名清
Owner 吴名清