KR101073108B1

KR101073108B1 - Electromagnetic switching device

Info

Publication number: KR101073108B1
Application number: KR1020100100785A
Authority: KR
Inventors: 이상진
Original assignee: 엘에스산전 주식회사
Priority date: 2010-10-15
Filing date: 2010-10-15
Publication date: 2011-10-13

Abstract

Disclosed is an electronic switch device that minimizes a coupling error generated at a part of a part to be joined. The electronic opening and closing device for this purpose includes a fixed contact, a movable contact disposed to be in contact with and detachable from the fixed contact, the upper assembly having at least one fixing groove formed on the outer surface thereof, and the movable contact to be separated from the fixed contact. A lower assembly including an actuator for driving a movable contact, and the upper assembly and the lower assembly is formed to surround the outer surface of the upper assembly and the lower assembly in a state in which the upper assembly and the lower assembly are coupled to each other, the portion corresponding to the fixing groove of the upper assembly in a fixed groove It includes a housing formed with at least one fixing projection formed to be received. Accordingly, in the process of coupling the upper assembly, the lower assembly, and the housing, the fixing protrusion of the housing is accommodated in the fixing groove formed in the upper assembly, thereby minimizing an error generated during the coupling.

Description

Electronic switchgear {ELECTROMAGNETIC SWITCHING DEVICE}

The present invention relates to an electronic switchgear, and more particularly to an electronic switchgear that can control the supply of current.

Electronic switchgear is a kind of electrical contact switch for supplying or stopping a current, it can be used in various industrial equipment, machinery and vehicles.

The conventional electronic switchgear includes a fixed contact, a movable contact and an actuator. The actuator raises the movable contact to the maximum to bring the movable contact into contact with the stationary contact. Then, the actuator lowers the movable contact so that the movable contact is separated from the fixed contact. In the electronic switchgear, vibration occurs in a process in which the movable contact is operated up and down.

On the other hand, the above-described electronic switchgear device is composed of a plurality of parts, when these parts are combined, an error (gap) may occur. Due to such a coupling error, noise may be generated during operation of the electronic switchgear.

An object of the present invention is to provide an electronic switchgear that minimizes the coupling error generated in the parts to be coupled between the parts.

Electronic opening and closing device according to the present invention for achieving the above object comprises a fixed contact, and a movable contact disposed to be in contact with and detachable from the fixed contact, the outer surface is formed with at least one fixing groove And a lower assembly including an actuator for driving the movable contact so that the movable contact is in contact with and separated from the fixed contact, and to surround the outer surface of the upper assembly and the lower assembly in a state where the upper assembly and the lower assembly are coupled to each other. It is formed, the portion corresponding to the fixing groove of the upper assembly includes a housing formed with at least one fixing protrusion formed to be received in the fixing groove.

Electronic opening and closing device according to the present invention is a state in which the fixing protrusion of the housing is applied to the upper assembly in a fixed groove formed in the upper assembly in the state in which the upper assembly and the lower assembly and the housing is applied to a pressure of the upper assembly do. Accordingly, by maintaining the upper assembly and the lower assembly stably coupled to each other, it is possible to minimize the coupling error to reduce the noise generated during operation.

In addition, the electronic switchgear according to the present invention can be accurately coupled to the upper assembly and the lower assembly and the housing even if the skilled worker performs the assembly work. Accordingly, productivity can be improved by reducing the defective rate in manufacturing the electronic switchgear.

1 is a perspective view showing that the housing is coupled to the upper assembly and the lower assembly in the electronic switchgear according to an embodiment of the present invention.
2 is a front view of the electronic switchgear shown in FIG.
3 is a side view of the electronic switching device shown in FIG.

The present invention will now be described in detail with reference to the accompanying drawings. The same reference numerals are used for the same components, and repeated descriptions and detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted. Embodiments of the present invention are provided to more completely describe the present invention to those skilled in the art. Accordingly, the shape and size of elements in the drawings may be exaggerated for clarity.

1 and 2, the electronic switching device 100 according to a preferred embodiment of the present invention includes an upper assembly 110, a lower assembly 120, and a housing 140.

The upper assembly 110 includes a stationary contact and a movable contact. The movable contact is arranged to be in contact with and detachable from the stationary contact. At least one fixing groove 116 is formed on the outer surface of the upper assembly 110.

The lower assembly 120 includes an actuator for driving the movable contact such that the movable contact is in contact with and separated from the fixed contact. The interior of the upper assembly 110 and the lower assembly 120 may be applied to the structure of the general electronic switch 100, a detailed description thereof will be omitted.

The housing 140 not only enables the upper assembly 110 and the lower assembly 120 to be stably coupled with each other, but also protects the upper assembly 110 and the lower assembly 120 from external contact. The housing 140 for this purpose is formed to surround the outer surfaces of the upper assembly 110 and the lower assembly 120 in a state where the upper assembly 110 and the lower assembly 120 are coupled to each other. At least one fixing protrusion 141 is formed in the housing 140. The fixing protrusion 141 is formed in a portion corresponding to the fixing groove 116 of the upper assembly 110 and is accommodated in the fixing groove 116. That is, the fixing protrusion 141 is formed to protrude from the inner surface of the housing 140. Here, the protruding height of the fixing protrusion 141 may be made larger than the drawn depth of the fixing groove 116. This is such that the fixing protrusion 141 of the housing 140 is in a state in which a predetermined amount of pressure is applied to the upper assembly 110 while the upper assembly 110, the lower assembly 120, and the housing 140 are coupled to each other. For sake.

On the other hand, the fixing groove 116 may be formed in a linear shape along the direction in which the upper assembly 110 is received into the housing 140. In addition, the fixing protrusion 141 may also be formed in a linear shape along the direction in which the upper assembly 110 is received into the housing 140. For example, when the upper assembly 110 is accommodated in the housing 140 from the front to the rear, the fixing groove 116 and the fixing protrusion 141 is formed in a straight shape from the front to the rear.

Electronic switching device 100 according to a preferred embodiment of the present invention made of the above structure is manufactured by manufacturing the upper assembly 110 and the lower assembly 120, respectively, due to a relatively complex internal structure in which a plurality of members are coupled to each other Combine.

On the other hand, unlike the electronic opening and closing device of the present invention, in the structure in which the housing simply wraps around the upper assembly and the lower assembly, the processing precision of the surfaces where the housing and the upper assembly, the housing and the lower assembly, the upper assembly and the lower assembly contact each other is not high. After the members are coupled to each other, an error may occur between the contact surfaces, and thus it may be difficult to smoothly operate the electronic switching device.

However, the electronic switch 100 of the present invention is the housing 140 in the fixing groove 116 formed in the upper assembly 110 in a state in which the upper assembly 110, lower assembly 120 and the housing 140 is coupled. The fixing protrusion 141 of the housing 140 is a fixed protrusion 141 of the housing 140 is in a state of applying a predetermined amount of pressure to the upper assembly 110. Accordingly, by maintaining the state in which the upper assembly 110 and the lower assembly 120 are stably coupled to each other, it is possible to minimize the coupling error to reduce the noise generated during operation. In addition, even if the skilled worker performs the assembly work, it is possible to accurately combine the upper assembly 110, the lower assembly 120 and the housing 140. Accordingly, the productivity of the electronic switch device 100 may be reduced by reducing the defective rate.

On the other hand, the housing 140 may be made of an elastically deformable material, the depth into which the fixing groove 116 is drawn may be formed smaller than the height from which the fixing protrusion 141 protrudes. When the upper assembly 110, the lower assembly 120, and the housing 140 are coupled to each other by this structure, the fixing protrusion 141 is constantly applied to the fixing groove 116 at a specific size, thereby providing an upper assembly. The combination of the 110 and the lower assembly 120 and the housing 140 may be made more stable.

On the other hand, the fixing protrusion 141 of the housing 140 is made of a material having a higher strength than the upper assembly 110, the housing 140 and the upper assembly 110 is coupled to the interference fit by the fixing protrusion ( Cracks may be generated on the bottom surface of the fixing groove 116 by 141. The fixing protrusion 141 may be introduced between the cracks, thereby reducing the tolerance between the upper assembly 110 and the housing 140 to minimize the occurrence of noise during the operation of the electronic switching device 100. Can be. One example of the material of the fixing protrusion 141 of the housing 140 may be made of metal, and one example of the material of the upper assembly 110 may be made of plastic.

Meanwhile, the fixing groove 116 may be formed in plural, and at least one of the fixing grooves 116 may be formed of an epoxy. Epoxy is injected in a state where the fixing protrusion 141 is accommodated in the fixing groove 116 to allow the upper assembly 110, the lower assembly 120, and the housing 140 to be more strongly coupled.

On the other hand, as shown in Figure 3, the electronic opening and closing device 100 having the structure as described above is fixed to the housing 140 in a state in which the upper assembly 110, lower assembly 120 and the housing 140 is coupled Since the protrusion 141 (see FIG. 2) is in a state of applying a predetermined size pressure to the upper assembly 110, the upper assembly 110 and the lower assembly 120 may be stably coupled to each other. Therefore, the electronic switching device 100 can be assembled accurately according to the design. Therefore, in a state in which the actuator 121 is not driven, a state in which the movable contact and the non-illustrated fixed contact included in the upper assembly 110 are kept at a predetermined distance may be maintained, and the movable contact is upward by the actuator 121. When moving to, the fixed contact point and the movable contact point are in contact. That is, since the blocking and supply of the current in the electronic switching device 100 can be accurately controlled, the operation reliability can be improved.

The above description is merely illustrative of the technical idea of the present invention, and various modifications, changes, and substitutions may be made by those skilled in the art without departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by the embodiments and the accompanying drawings. . The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

100: electronic switchgear 110: upper assembly
116: fixing groove 120: lower assembly
140: housing 141: fixing protrusion

Claims

An upper assembly including a fixed contact and a movable contact disposed to be in contact with and detachable from the fixed contact and having at least one fixing groove formed on an outer surface thereof;
A lower assembly including an actuator for driving the movable contact such that the movable contact is in contact with and separated from the fixed contact; And
At least one fixing protrusion formed to surround the outer surface of the upper assembly and the lower assembly in a state in which the upper assembly and the lower assembly are coupled to each other, and corresponding to the fixing groove of the upper assembly is accommodated in the fixing groove. Formed housing;
Electronic switching device comprising a.

The method of claim 1,
The housing is made of an elastically deformable material, and the electronic groove opening and closing device, characterized in that the depth into which the fixing groove is drawn is formed smaller than the height of the fixing protrusion protruding.

The method of claim 1,
The fixing groove is a plurality,
At least one of the fixing grooves the electronic switching device, characterized in that the epoxy is formed.

The method of claim 1,
The protruding height of the fixing protrusion is formed greater than the drawn depth of the fixing groove.

The method of claim 4, wherein
The fixing protrusion of the housing is made of a material having a higher strength than the upper assembly,
The housing and the upper assembly is coupled to the interference fit, the electronic opening and closing device characterized in that the crack is generated on the bottom surface of the fixing groove by the fixing projections.