阅读说明：本技术 一种小型高分断液压或气压断路器 (Small-size high-breaking hydraulic or pneumatic circuit breaker ) 是由 任登华 于 2021-09-16 设计创作，主要内容包括：本发明公开了一种小型高分断液压或气压断路器,解决了现在市场的小型液压和气压断路器的分断能力进一步提高的技术问题,一种小型高分断液压断路器,包括如下,在高分断液压或气压断路器壳体中设置有触头操作机构、液压或气压电磁脱扣线圈,衔铁,动触头拉件,所说的动触头拉件是在衔铁的一端设置的零件,该零件能帮助动触头分断,导磁片,导磁片可以用铆钉和垫圈链接而成,取消衔铁被吸拉端上的导磁片,导磁片弹簧和铆钉,加大液压或气压电磁线圈中的吸拉力和油杯气杯中的弹簧力,也可以达到同样的效果。与现有技术相比,在动触头上设置了动触头拉件,在衔铁上设置了导磁片,提高了液压或气压断路器的分断能力,经过这些改进,使本发明更加可靠,适用,分断能力大幅提高。(The invention discloses a small-sized high breaking hydraulic or pneumatic circuit breaker, which solves the technical problem that the breaking capacity of the small-sized hydraulic or pneumatic circuit breaker in the current market is further improved. Compared with the prior art, the movable contact pull piece is arranged on the movable contact, the magnetic conductive piece is arranged on the armature, the breaking capacity of the hydraulic or pneumatic circuit breaker is improved, and through the improvement, the invention is more reliable and applicable, and the breaking capacity is greatly improved.)

1. A small-sized high breaking hydraulic or pneumatic circuit breaker is characterized by comprising a shell, wherein a contact operating mechanism, a hydraulic or pneumatic electromagnetic coil, an armature and a moving contact pulling piece are arranged in the shell.

2. A small high breaking hydraulic or pneumatic circuit breaker according to claim 1, wherein the rated current of the housing of the small high breaking hydraulic or pneumatic circuit breaker is 130A or less.

3. A miniature high-breaking hydraulic or pneumatic circuit breaker as claimed in claim 1, wherein said moving contact pull is a member provided at one end of the armature, the member assisting the moving contact in breaking.

4. A small-sized high breaking hydraulic or pneumatic circuit breaker according to claim 1, wherein the hydraulic or pneumatic electromagnetic coil is provided with an oil cup or an air cup and a movable iron core.

Technical Field

The invention relates to the technical field of high breaking hydraulic circuit breakers, in particular to a small high breaking hydraulic or pneumatic circuit breaker.

Background

The small-sized hydraulic circuit breaker on the market has low breaking capacity and small application range.

Disclosure of Invention

The invention aims to provide a small-sized high-breaking hydraulic or pneumatic circuit breaker to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a miniature high-breaking hydraulic or pneumatic circuit breaker is composed of casing, contact operating mechanism, hydraulic or pneumatic electromagnetic coil, armature, pull-in end of armature, and pull-in part at one end of armature for helping the breaking of moving contact. The magnetic conductive sheet and the magnetic conductive sheet spring (the magnetic conductive sheet spring can be cancelled) firstly adjust the gap between the pushing end of the armature and the locking shaft to be about 0.5 mm, a moving contact pulling piece is arranged on the moving contact, the moving contact pulling piece can be pulled by the pulling end of the armature when in short circuit, the moving contact pulling piece pulls the moving contact to break, the magnetic conductive sheet is linked with the pulling end of the armature, the magnetic conductive sheet spring is linked with the magnetic conductive sheet by a conical rivet and a gasket, the magnetic conductive sheet can also be made into an integral structure, when in overload, the magnetic conductive sheet can drive the armature to be pulled by the pulling end, the pulling end of the armature can not pull the moving contact pulling piece, when in short circuit, the current is very large, the armature and the magnetic conductive sheet are simultaneously pulled, the moving contact pulling piece is pulled by the armature pulling end to break the moving contact, the breaking capacity of the hydraulic or pneumatic circuit breaker is improved, the breaking capacity is greatly improved, the magnetic conductive sheet on the pulling end of the armature is cancelled, the same effect can be achieved by the magnetic conductive sheet spring and the rivet.

As a still further scheme of the invention: the rated current of the small high-breaking air switch shell is below 130A.

As a still further scheme of the invention: the magnetic conductive sheet is a part connected with the attracted end of the armature, the part can be attracted by a hydraulic or pneumatic electromagnetic coil to drive the armature to move, and when the armature is in short circuit, the part and the attracted end of the armature are attracted at the same time.

Compared with the prior art, the invention has the beneficial effects that:

firstly, the gap between the pushing end of the armature and the locking shaft is adjusted to be about 0.5 mm, a moving contact pulling piece is arranged on the moving contact, the moving contact pulling piece can be pulled by the pulling end of the armature during short circuit, the moving contact is pulled by the moving contact pulling piece to be disconnected, a magnetic conductive piece is linked on the pulling end 7 of the armature, a magnetic conductive piece spring (the magnetic conductive piece spring can be cancelled), the magnetic conductive piece can be formed by linking a conical rivet and a gasket, and can also be made into an integral structure.

Drawings

Fig. 1 is a schematic structural view of embodiment 1.

Fig. 2 is a schematic structural view of embodiment 2.

Fig. 3 is a schematic view of an assembly structure of the armature and the pulling member of the present invention.

Fig. 4 is a schematic structural view of the magnetic conductive sheet of the present invention.

In the figure: the device comprises a wiring terminal 1, a shell 2, an arc extinguishing chamber 3, a moving contact pulling piece 4, a contact operating mechanism 5, a handle 6, an armature attracted end 7, a magnetic conductive sheet 8, a hydraulic or pneumatic electromagnetic coil 9, an armature attracted end 10, a latch shaft 11, an armature pushing end 12, an attraction pulling piece spring 13 and a cone 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1, a small-sized high breaking hydraulic or pneumatic circuit breaker includes a housing 2, a contact operating mechanism 5, a hydraulic or pneumatic solenoid 9 (including an oil cup or an air cup and a movable iron core), an armature attracted end 7, a movable contact pulling member 4, and a magnetic conductive sheet 8 are disposed in the housing 2 of the high breaking hydraulic or pneumatic circuit breaker. Compared with the prior art, firstly, the gap between the pushing end 12 of the armature and the lock shaft 11 is adjusted to be about 0.5 mm 1, a moving contact pulling piece 4 is arranged on the moving contact, and the moving contact pulling piece 4 is a part arranged at one end of the armature and can help the moving contact to break. The moving contact pulling part 4 can be pulled by an armature pulling end 10 when in short circuit, the moving contact pulling part 4 pulls the moving contact to break, 2, a magnetic conductive sheet 8 is linked on an armature pulled end 7, a magnetic conductive sheet spring 13 (the magnetic conductive sheet spring can be cancelled), the magnetic conductive sheet can be formed by connecting a conical rivet and a gasket, and can also be made into an integral structure, when in overload, the magnetic conductive sheet 8 can drive the armature 7 to suck, the armature pulling end 10 can not pull the moving contact pulling part, when in short circuit, the current is very large, the armature pulled end 7 and the magnetic conductive sheet 8 are sucked simultaneously, the armature pulling end 10 pulls the moving contact pulling part 4 to move the moving contact, the breaking capacity of the hydraulic circuit breaker is improved, through the improvement, the breaking capacity is greatly improved, the magnetic conductive sheet on the armature pulled end, the magnetic conductive sheet spring and the rivet are cancelled, and the same effect can be achieved

Example 2

Referring to fig. 2, the terminal of fig. 1 is partially removed, and the arc extinguishing chamber is reduced to make a smaller-sized high breaking hydraulic or pneumatic circuit breaker.

Example 3

The invention is combined with an electric leakage protection component to form a hydraulic or pneumatic electric leakage combined breaker.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.