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Electromagnetic-type release

A release, electromagnetic technology, applied in the direction of protection switch operation/release mechanism, etc., can solve the problems of leakage trip action value fluctuation, reduced product service life, reliability, and extended working hours, so as to improve reliability and stability The effect of enhancing the efficiency of magnetic field utilization and avoiding the loss of magnetic flux

Pending Publication Date: 2018-05-25
SHANGHAI LIANGXIN ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing electromagnetic tripper has the following defects: (1) The overall volume of the electromagnetic tripper is relatively large, so that the volume of the electromagnetic leakage switch is insufficient, and the difficulty of arranging the wires during the assembly process of the leakage switch increases; (2) ) During the assembly process of the electromagnetic release, it is necessary to fix the permanent magnet through the riveting process, resulting in prolonged working hours. At the same time, small chips will be produced during the riveting process, which will affect the electromagnetic performance: (3) When the electromagnetic release device is opened and closed , there is no buffering process, which increases the impact on the pole surface during the working process and reduces the service life and reliability of the product: (4) The existing electromagnetic tripping device adopts the upper and lower buckle type for sealing, the gap is large, and it is easy to Dust enters, causing the tripping device to lose its magnetism, directly affecting the action of the leakage protection switch, seriously endangering the safety of nearby equipment, and easily causing fire; (5) The magnetic system of the existing electromagnetic tripping device has no positioning in the shell, It is easy to shake left and right, making the action characteristics inconsistent, and there is a risk of unstable output stroke and force value: (6) Relative displacement easily occurs between the yoke and the armature pole surface after the second reset, and the joint surface changes due to the air gap, resulting in leakage tripping The value fluctuates greatly

Method used

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Examples

Experimental program
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Embodiment 1

[0041] as attached figure 1, shown in 2, 3a and 3b, an electromagnetic tripper, which includes a magnetic tripping mechanism 1, the magnetic tripping mechanism 1 is installed in the inner cavity of the electromagnetic box body 2, and the electromagnetic box body 2 is provided with There is a ejector rod hole 201, and a ejector rod 3 is housed in the ejector rod hole 201, and one end of the ejector rod 3 extending into the inner cavity of the electromagnetic box body 2 corresponds to the magnetic tripping mechanism 1, and the ejector rod 3 can Jacked up by the magnetic trip mechanism 1; in this embodiment, the electromagnetic box body 2 includes a base 202 and an upper cover 203, and a limit hook 204 is provided on the outer surface of the electromagnetic box body 2 corresponding to the push rod 3; The magnetic isolation limit block 107 is fixedly mounted on the upper side of the rear end of the magnetic circuit assembly 101;

[0042] As shown in Figure 3, the coil assembly 10...

Embodiment 2

[0049] as attached Figures 9 to 13 As shown in another embodiment of the present invention, the left auxiliary yoke 101d is arranged side by side on the left side of the rear end of the left yoke 101a, and the right side is installed side by side on the right side of the right yoke 101b rear end. Auxiliary yoke 101e, the rear side of the left auxiliary yoke 101d, left yoke 101a, magnetic isolation piece 101c, right yoke 101b and right auxiliary yoke 101e arranged side by side in sequence is penetrated by permanent magnet installation hole 101f' , the permanent magnet 102' is installed in the permanent magnet installation hole 101f'.

[0050] as attached Figure 12 As shown, the upper end surface of the permanent magnet 102' located on the left side of the magnetic isolation piece 101c is in contact with the left yoke 101a and the left auxiliary yoke 101d, and the lower end surface is in contact with the left yoke 101a and the left auxiliary yoke. The yoke 101d is separated,...

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Abstract

The invention discloses an electromagnetic-type release, and the release comprises a magnetic release mechanism (1). The release is characterized in that the magnetic release mechanism (1) is disposedin an inner cavity of an electromagnetic box body (2); the electromagnetic box body (2) is provided with a push rod hole (201); the interior of the push rod hole (201) is provided with a push rod (3); one end, stretching into the electromagnetic box body (2), of the push rod (3) is corresponding to the magnetic release mechanism (1); the push rod (3) can be jacked by the magnetic release mechanism (1); a magnetic isolating limiting block (107) is fixedly packaged on an upper side face of the rear end of a magnetic circuit assembly (101). According to the invention, the electromagnetic-type release is based on the improvement of the whole structure of a conventional electromagnetic-type release, and the assembly process of the electromagnetic-type release is simplified. The size of the electromagnetic-type release is reduced, and an armature which makes direct contact with a magnetic yoke is additionally provided with an elastic element, thereby reducing the impact on a pole surface ina working process, enabling the operation between all parts of the electromagnetic-type release to be more stable, improving the reliability and stability of the electromagnetic-type release, and improving the safety of the electromagnetic-type release.

Description

technical field [0001] The invention belongs to the technical field of circuit breakers, and in particular relates to an electromagnetic release. Background technique [0002] Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. Low-voltage circuit breaker, also known as automatic switch, commonly known as "air switch", also refers to low-voltage circuit breaker. It is an electrical appliance that not only has the function of manual switch, but also can automatically protect against voltage loss, undervoltage, overload, and short circuit. It can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, etc., and can automatically cut off the circuit when they have severe overload, short circuit and undervoltage faults. Its function is equivalent to a fuse switch and The combination of overheating and underheating relays, etc., and generally does ...

Claims

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Application Information

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IPC IPC(8): H01H71/32
CPCH01H71/32
Inventor 刘时胜柯恒周娟
Owner SHANGHAI LIANGXIN ELECTRICAL