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A technology of sulfur hexafluoride gas and density relay, which is applied in the direction of circuits, electric switches, electrical components, etc., can solve the problems of thick thickness, difficult to meet the application site, and thick density relay, so as to expand the scope of use and avoid false triggering Signal generator, satisfying the effect of contact hysteresis
Active Publication Date: 2014-04-02
SHANGHAI ROYE ELECTRICAL CO LTD
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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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[0040] In order to better understand the technical solutions of the present invention, detailed descriptions are given below through specific embodiments and in conjunction with the accompanying drawings.
[0041] see Figure 9 to Figure 11 , the first thin sulfur hexafluoride gas density relay of the present invention is mainly composed of a joint, a core 2, a casing, a dial 4, a pointer 5, a Baden tube 6, a temperature compensation sheet 7, a wiring seat, three Micro switches 91, 92, 93, printed circuit board 10, positioning plate 11, fixing plate 12, electric wire 13, signal conditioning member 14, connecting rod 15, connecting arm 16, watch glass, cover ring, base 19, Pipe, strengthening mechanism 23, end seat 24 and other components. Among them, the joint is fixed on the shell, the core 2 is fixed on the base 19; one end of the Baden tube 6 is welded on the base 19 and communicated with it, and the other end is connected with one end of the temperature compensation sheet...
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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 ...
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