Locking device of electromagnetic switch
An electromagnetic switch and locking device technology, applied in the direction of electromagnetic relays, electromagnetic relay details, circuits, etc., can solve problems such as easy-to-burn contacts, easy-to-burn coils, and switch failures, so as to improve the safety of use and avoid waste Energy and life-enhancing effects
Active Publication Date: 2014-02-12
TANGSHAN JINDING AUTOMATIC CONTROL TECH
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Problems solved by technology
[0003] During the use of the electromagnetic switch, because the coil is always in the energized state when it is working, if the voltage of the grid is high, the coil is easy to burn out, and if the voltage is low, the contact is easy to burn out due to the decrease of the suction and maintenance force, resulting in switch failure.
Method used
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Embodiment Construction
[0015] Embodiments of the present invention are further described below in conjunction with accompanying drawings:
[0016] Such as figure 1 As shown, the housing 1 is equipped with a moving bridge 2 and a pull-in electromagnet 7, the pull-in electromagnet 7 is arranged correspondingly to the moving bridge 2, a locking device is arranged on the housing 1, and one end of the armature 4 at the bottom of the moving bridge 2 is bent The locking hook 5 is formed by folding, and the locking hook 5 corresponds to the locking device. The locking device includes a mounting frame 3, a tripping electromagnet 8, a blocking plate 9, a manual lever 10 and an insertion rod 6. The mounting frame 3 is fixed in the housing 1, and the tripping electromagnet 8 is arranged at one end of the mounting frame 3. The moving iron core 13 of the buckle electromagnet 8 is connected with the stopper 9, and the stopper 9 is connected with the insertion rod 6, and the insertion rod 6 corresponds to the lock...
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The invention relates to a locking device, more particularly to a locking device of an electromagnetic switch. The device comprises a movable bridge stand and an adhesive electromagnet, wherein the movable bridge stand and the adhesive electromagnet are installed in a housing as well as the movable bridge stand and the adhesive electromagnet are arranged correspondingly. The device is characterized in that: a locking device is arranged on the housing; one end of an armature at the bottom of the movable bridge stand is bent to form a locking hook; and the locking hook is corresponding to the locking device. According to the invention, defects in the prior art are overcome; power not only can be cut off automatically and but also can be cut off manually; therefore, service life of equipment is improved and reliability for usage is also enhanced.
Description
technical field [0001] The invention relates to a locking device, in particular to a locking device of an electromagnetic switch. Background technique [0002] Electromagnetic switch is a kind of on-off function device for power supply equipment and power supply line. Because of its simple structure and automatic power transmission, it can be used not only as a circuit breaker but also as a leakage circuit breaker or automatic phase switching switch. [0003] During the use of the electromagnetic switch, because the coil is always energized when it is working, if the voltage of the power grid is high, the coil is easy to burn out, and if the voltage is low, the contact is easy to burn out due to the decrease of the holding force, resulting in switch failure. Contents of the invention [0004] According to the deficiencies in the prior art above, the technical problem to be solved by the present invention is: to provide an electromagnetic switch that can overcome the above-...
Claims
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IPC IPC(8): H01H50/32
Inventor 高电光段健鹏刘博王清张树锋耿建伟
Owner TANGSHAN JINDING AUTOMATIC CONTROL TECH