Thin sulfur hexafluoride gas density relay

Abstract

The invention discloses a thin sulfur hexafluoride gas density relay which has the advantages that anti-vibration performance is higher, contact and electric performances of contacts of a signal generator are better, the service life is long and the accuracy is high. The thin sulfur hexafluoride gas density relay comprises a shell, a base, an end base, a burdon tube, a temperature compensation sheet, a connecting arm, a clock mechanism, a signal adjuster and a plurality of micro-switches, wherein the base, the end base, the burdon tube, the temperature compensation sheet, the connecting arm, the clock mechanism, the signal adjuster and the plurality of micro-switches are arranged inside the shell. The thin sulfur hexafluoride gas density relay is characterized in that the micro-switches are arranged in the manner than the width direction of operation handles of the micro-switches is vertical to the width direction of the burdon tube. Due to adoption of the innovative design, the relative length of the connecting arm is reduced; therefore, the impact or vibration torque on the connecting arm is reduced when the gas density relay is shocked or vibrated, so that the impact or vibration force on the burdon tube is further reduced, the signal adjuster is prevented from triggering the micro-switches by mistake when the gas density is normal, and the anti-vibration performance of the density relay is greatly improved. Meanwhile, by adoption of the innovative design, the thickness of the density relay is reduced, the application range is expanded, and application to various places can be realized.

Description

technical field [0001] The invention relates to a thin sulfur hexafluoride gas density relay. Background technique [0002] At present, oil-free gas density relays with microswitch contacts are generally used to monitor the gas density of sulfur hexafluoride in electrical equipment. The gas density relays (such as figure 1 and figure 2 shown) generally includes dial 1, pointer 2, Baden tube 3, temperature compensation sheet 4, base 5, movement with display magnification mechanism 6, connecting rod 7, shell 8, joint 9, micro switch 101, 102, 103, adjusting parts 111, 112, 113, contact operating arm 12, connecting arm 13, end seat 14, wiring seat 15, watch glass 16, cover 17, printed circuit board 18, positioning plate 19, fixing The plate 20 , the electric wire 21 and the sulfur hexafluoride gas delivery pipe 22 , wherein the joint 9 , the terminal block 15 , the watch glass 16 , the cover 17 and the base 5 are respectively fixed on the casing 8 . The movement 6 and the ...

AI Technical Summary

Problems solved by technology

Similarly, the microswitches 91-93 of this gas density relay are arranged in such a way that the width direction of the operating handle is parallel to the width direction of the Baden tube 6, and an anti-misoperation mechanism is added, so that the thickness of the density relay is thick. , especially when 3 to 4 contacts are required, the thickness is very thick, and it is difficult to meet various application occasions

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