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Intelligent circuit breaker pressure sensing device

A technology of intelligent circuit breakers and sensing devices, applied in high-voltage air circuit breakers, circuits, high-voltage/high-current switches, etc., can solve problems such as difficulties and limited internal space

Inactive Publication Date: 2020-06-12
JIANGSU SENYUAN ELECTRICAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] It is relatively difficult to directly measure the contact pressure in the vacuum tube, and it can only be measured indirectly through the insulating rod; figure 1 As shown, the existing measurement method is to connect the pressure sensor with the insulating pull rod through threaded rods, etc., and measure it through the simultaneous force of the insulating pull rod and the sensor; but due to the limitation of the external dimensions of the circuit breaker pole and the limited internal space, this If this connection method is too long, it will be too close to the conductive part of the circuit breaker, so that the withstand voltage of the circuit breaker cannot meet the product requirements.

Method used

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  • Intelligent circuit breaker pressure sensing device
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  • Intelligent circuit breaker pressure sensing device

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Embodiment Construction

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] like figure 2 As shown, a pressure sensing device for an intelligent circuit breaker according to the present invention includes an insulating rod 1 and a pressure sensor 2. The main part of the insulating rod 1 is made of PA66+GF33% reinforced nylon material, and the upper end of the insulating rod 1 has a vacuum tube The connection assembly 3 has a receiving groove at the lower end of the insulating pull rod 1 , and the upper part of the casing of the pressure sensor 2 is solidly sealed in the receiving groove at the lower end of the insulating pull rod 1 by casting.

[0015] like image 3 As shown, the vacuum tube connection assembly 3 is used to connect the lower end of the vacuum tube 4, the upper end of the vacuum tube 4 is provided with an upper outlet seat 5, and the movable contact at the lower end of the vacuum tube...

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Abstract

The invention discloses an intelligent circuit breaker pressure sensing device, and the device comprises an insulating pull rod and a pressure sensor; the upper end of the insulating pull rod is provided with a vacuum tube connecting assembly, the lower end of the insulating pull rod is provided with an accommodating groove, and the pressure sensor is fixedly arranged in the accommodating groove.According to the scheme, the pressure sensor is fixedly sealed in the insulating pull rod to measure the contact pressure in the vacuum tube so as to ensure that the installation of the pressure sensor does not influence the size of the circuit breaker; on the one hand, the height of the pressure sensor meets the installation requirement; on the other hand, the pressure resistance of the circuit breaker can be met, the installation and connection processes are reduced, and the measurement performance of the pressure sensor is ensured.

Description

technical field [0001] The invention relates to a pressure sensing device for an intelligent circuit breaker. Background technique [0002] It is relatively difficult to directly measure the contact pressure in the vacuum tube, and it can only be measured indirectly through the insulating rod; figure 1 As shown, the existing measurement method is to connect the pressure sensor with the insulating pull rod through threaded rods, etc., and measure it through the simultaneous force of the insulating pull rod and the sensor; but due to the limitation of the external dimensions of the pole of the circuit breaker and the limited internal space, this If this connection method is too long, it will be too close to the conductive part of the circuit breaker, so that the withstand voltage of the circuit breaker cannot meet the product requirements. Contents of the invention [0003] The object of the present invention is to provide a pressure sensing device for an intelligent circui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/668
CPCH01H33/668
Inventor 李波姜万东陈斌李振华王剑剑
Owner JIANGSU SENYUAN ELECTRICAL
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