Small-size and wide-range pressure sensor

A pressure sensor, large-range technology, applied in the field of large-range pressure sensor and small size, can solve the problem of easy tearing and damage of the right-angle part, and achieve the effect of improving the range and service life, improving the sensitivity, and improving the range.

Pending Publication Date: 2021-05-14
山东重心电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the right-angle part of the existing pressure sensor is easily torn and damaged due to stress accumulation, the technical solution adopted in the present invention is: a small-sized, large-range pressure sensor, including: a housing, which has a A cavity, the cavity is filled with liquid, and one side of the housing is provided with an opening that communicates with the cavity, the opening is provided with a bottom cover, and one side of the housing is provided with an opening that communicates with the cavity. The first

Method used

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Examples

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Example Embodiment

[0020]Example one

[0021]Such asfigure 1 withfigure 2As shown, the present invention provides a small size, a large-scale pressure sensor, including: housing 1 having a cavity 11 in which a liquid is provided in the cavity 11, which can use silicone oil. And the housing 1 is provided with an opening of the cavity 11, and the opening size is matched to the size of the cavity, and a bottom cover 2 is provided on the opening, which is used to seal the cavity. A connector 13 is provided on a first through hole 12 in which the casing 1 is provided, and the first through hole 12 is provided, which not only seals the first through hole, but also A diffusion silicon sensor is provided on the cavity end of the connector 13, the casing 1 having a cavity wall on the side of the bottom cover 2, has an exterior first projection 14 and the second The protrusion 16 is a first inclined surface 15 between the highest point and the lowest point of the first projection 14, and the highest point of the s...

Example Embodiment

[0028]Example 2

[0029]Such asfigure 1 withfigure 2As shown, the present invention provides a small size, a large-scale pressure sensor, including: housing 1 having a cavity 11 in which a liquid is provided in the cavity 11, which can use silicone oil. And the housing 1 is provided with an opening of the cavity 11, and the opening size is matched to the size of the cavity, and a bottom cover 2 is provided on the opening, which is used to seal the cavity. The bottom cover 2 is provided with a step structure 21, and accordingly, the opening edge is also provided with a step structure on the housing that matches the step structure 21, and the bottom cover 2 is interpreted with the housing 1. The casing 1 is provided with a first through hole 12 in which the cavity 11 is provided, and a connector 13 is provided in the first through hole 12, which not only seals the first through hole. At the same time, a diffusion silicon sensor is provided on the cavity end of the connector 13, the casin...

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Abstract

The invention relates to a small-size and wide-range pressure sensor which comprises a shell, a cavity is formed in the shell, liquid is injected into the cavity, an opening is formed in one side of the shell, a bottom cover is arranged on the opening, a first through hole is formed in one side of the shell, a connector is arranged in the first through hole, a diffused silicon sensor is arranged on the connector, a cavity wall, opposite to the other side of the bottom cover, of the shell is provided with a first outward protrusion and a second inward protrusion, a first inclined plane is formed between the highest point and the lowest point of the first protrusion, a second inclined plane is formed between the highest point and the lowest point of the second protrusion, and an inner chamfer is arranged at the joint of the second inclined plane and the side wall of the cavity. The pressure sensor is provided with the first inclined plane and the second inclined plane, so that the measuring range and the sensitivity are greatly improved. Moreover, the joint of the cavity and the second inclined plane adopts the inner chamfer design, so that the measuring range of the pressure sensor is further extended,and the service life of the pressure sensor is prolonged.

Description

technical field [0001] The invention relates to the field of pressure sensor equipment, in particular to a pressure sensor with small size and large range. Background technique [0002] As our road transportation network becomes more and more developed, correspondingly, the truck transportation business also develops rapidly. At the same time, with the refined management of transportation and the requirements of transportation safety, it is necessary to monitor the vehicle pressure and collect the micro-deformation data of the frame during transportation, and these need to be collected by pressure sensors. [0003] However, when the conventional pressure sensor is subjected to high pressure, the stress in the compressed part is relatively concentrated, mainly due to the stress accumulation at the right angle outside the pressure part and the right angle part or acute angle stress accumulation of the inner cavity wall, and tear damage often occurs in these parts , making the...

Claims

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Application Information

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IPC IPC(8): G01L1/26
CPCG01L1/26
Inventor 王星星
Owner 山东重心电子科技有限公司
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