Closing preventing device for breaker
A circuit breaker and anti-closing technology, which is applied in the direction of protection switch operation/release mechanism, etc., can solve the problems of limited application range and complicated installation, and achieve the effect of simple and convenient installation, simple and convenient installation, and flexible and convenient use
Active Publication Date: 2015-01-28
DELIXI ELECTRIC
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Problems solved by technology
[0004] For this reason, the technical problem to be solved by the present invention is that the mechanical anti-closing device in the prior art has a relatively limited range of use and complicated installation, so an electromagnetic circuit breaker anti-closing device with a wide range of use, modularization and easy installation is proposed. Gate device
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[0035] refer to figure 2 and image 3 , the anti-closing device of the circuit breaker of the present invention is suitable for being installed in the accessory chamber of the circuit breaker and electrically connected with the circuit breaker, including a bracket 2, a static iron core 3, a coil 4, a return spring 6, a push rod 7, and a moving iron Core 8, micro switch 10, plug wire stub 11 and sliding pressure bar 12.
[0036] One end of the support 2 is fixedly connected with a static iron core 3, the static iron core 3 is covered with a coil 4, the coil 4 is fixed on the support 2, and the support 2 is far away from the static iron core 3. The other end is provided with a push rod 7 hinged on the bracket 2, and one side of the push rod 7 is fixedly connected with a moving iron core 8 opposite to the static iron core 3 at the hinged position. 7 is on the other side of the hinged position and is linked with the tripping drawbar 15 of the circuit breaker to realize the open...
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The invention discloses a closing preventing device for a breaker. The closing preventing device for the breaker comprises a support, a microswitch fixed to the upper side of the support, and a patch cord head used for being electrically connected with the wiring end of the breaker, wherein a fixed iron core sleeved with a coil is fixed to one end of the support, a push rod is hinged to the other end of the support, a movable iron core opposite to the fixed iron core is fixed to one side of the hinged portion of the push rod, the other side of the hinged portion of the push rod is in linkage with a breaker tripping draw bar to achieve opening and closing of the breaker, a reset spring is arranged between the push rod and the support, the microswitch is connected with the coil in series and is triggered through a sliding pressing rod which stretches out of a face cover of the breaker, and two pins of the patch cord head are connected to the coil and the microswitch respectively; when the microswitch is triggered by the sliding pressing rod to be in a normally-closed state, after the breaker is closed mistakenly, the fixed iron core is electrified to be combined with the movable iron core through attraction force, and the breaker tripping draw bar is triggered by the push rod to achieve opening of the breaker. According to the closing preventing device for the breaker, the technical problem that an existing mechanical closing preventing device is narrow in application range and complicated in installation is solved. The closing preventing device for the breaker can be installed by a user and is wide in application range and easy and convenient to install.
Description
technical field [0001] The invention relates to an anti-closing device, in particular to a circuit breaker anti-closing device used on a molded case circuit breaker. Background technique [0002] When the circuit breaker breaks down, in order to prevent the possibility of false closing during maintenance, which may cause danger to the maintenance personnel, an anti-mis-closing device is usually installed in the circuit breaker. [0003] The main structure of an existing mechanical anti-misoperation closing device is as follows: figure 1 As shown, it is composed of a pressure rod 8, a pivot pin seat 9, a pivot pin 10, and a torsion spring 11. On the shaft pin seat 9, at the end of the pressure rod 8, a boss 7 is arranged, and the boss 7 withstands the pressure rod 8, so that the tripping push rod 2 can move up and down, so that the normal opening and closing of the circuit breaker can be ensured. brake. When the controller is disassembled, the boss 7 is also disassembled. ...
Claims
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IPC IPC(8): H01H71/62
CPCH01H71/62
Inventor 徐赛金欧志山何海良宋志文
Owner DELIXI ELECTRIC