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Exhaust and leak hunting structure of T-MAP sensor gland and sealing method

A sensor and gland technology, applied in the direction of detecting the appearance of fluid at the leak point, using liquid/vacuum for liquid tightness measurement, etc., can solve the problems of unfavorable product use safety, rust, high risk of leakage, etc.

Pending Publication Date: 2021-05-07
无锡华阳科技有限公司
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Problems solved by technology

[0003] However, because the steel ball and the air outlet on the gland are tightly squeezed to form a seal, the size of the interference will change when subjected to cold and heat shocks, and the risk of leakage is higher, and the steel ball is made of metal, which has long-term contact with the external environment Changes such as corrosion or rust will occur when exposed to the environment, which is not conducive to the safety of the product

Method used

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  • Exhaust and leak hunting structure of T-MAP sensor gland and sealing method
  • Exhaust and leak hunting structure of T-MAP sensor gland and sealing method
  • Exhaust and leak hunting structure of T-MAP sensor gland and sealing method

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Embodiment Construction

[0029] The present invention will be described in further detail below according to the drawings and embodiments.

[0030] Such as figure 1 As shown, as the exhaust and leak detection structure of the traditional T-MAP sensor gland, an air outlet 8 is punched on the gland body 1. After the exhaust and leak detection are completed, a diameter ratio The steel ball 9 with a slightly larger diameter of the air outlet hole 8 is directly riveted into the air outlet hole 8 , thereby achieving the purpose of sealing the air outlet hole 8 .

[0031] As an improvement on traditional structures such as Figure 2-4 As shown, a T-MAP sensor gland exhaust and leak detection structure, including a gland body 1, along the surface of the gland body 1 is provided with a circular groove 2, along the circular groove 2 The center of the circle is provided with a cylinder 3 perpendicular to it, along the central axis of the cylinder 3 there is a cylindrical air hole 4 that can pass through the gl...

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Abstract

The invention relates to the technical field of pressure sensors, in particular to an exhaust and leak detection structure of a T-MAP sensor gland, which comprises a gland body, a circular groove formed along the surface of the gland body, and a cylinder arranged along the circle center of the circular groove and perpendicular to the circular groove, a cylindrical air hole capable of penetrating through the gland body is formed along the central axis of the cylinder; and the height of the cylinder is greater than the depth of the circular groove. According to the scheme, the structure is simple, the reliability is high, the sealing effect can be achieved without the help of external sealing parts while the cost is not increased, the production and testing efficiency of products can be improved, and the service life of the products can be effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of pressure sensors, in particular to an exhaust and leak detection structure and a sealing method for a T-MAP sensor gland. Background technique [0002] During the T-MAP sensor assembly process, the final process is to glue the gland and the housing together and cure them, so that a closed cavity is formed inside the housing and the gland after dispensing. The current process is to make an air outlet on the gland that communicates with the outside world. During the curing process of the glue, the gas that is heated and expanded passes through the air outlet to discharge the cavity. Otherwise, the expansion of the heated gas will cause the gland to warp and affect the shell. Dispensing sealability and product appearance. After dispensing and curing, it is necessary to apply a certain pressure of compressed air to the cavity through the air outlet to detect whether there is leakage in the sealed cavity. For...

Claims

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Application Information

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IPC IPC(8): G01M3/04
CPCG01M3/04
Inventor 朱泽瑞顾常飞
Owner 无锡华阳科技有限公司
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