KR200411506Y1 - Mounting device for magnetic contactor - Google Patents

Abstract

The present invention relates to a fixing device for a magnetic contactor, by which the fixing state of the magnetic contactor fixedly installed on the rail by the latch part can be easily released through the auxiliary mechanism part, thereby easily detaching the magnetic contactor with a small force, thereby increasing the convenience of operation. The present invention relates to a fixing device for a magnetic contactor, which can be increased and also facilitates easy inspection and replacement.

Description

Magnetic contactor fixing device {MOUNTING DEVICE FOR MAGNETIC CONTACTOR}

1 is a view showing a fixing device of a conventional magnetic contactor.

Figure 2 is a view showing a state in which the rail coupled to the conventional magnetic contactor.

3 is an exploded view of a fixing device of a conventional magnetic contactor.

4 is a view showing a state in which a thermal overload relay is coupled to a conventional magnetic contactor

5 is a perspective view showing a fixing device of a magnetic contactor according to the present invention.

6 and 7 is a view showing the assembly state of the fixing device of the magnetic contactor according to the present invention.

8 is a view schematically showing the operation of the auxiliary frame and the latch unit according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: lower frame 11: jamming jaw

12: rail groove 20: latch portion

22: operator 30: spring

100: auxiliary frame 110: coupling portion

120: contact 130: opening

The present invention relates to a magnetic contactor, and more particularly, to a fixing apparatus of a magnetic contactor capable of detachable magnetic contactor without using a separate device.

In general, the magnetic contactor has a main function of controlling the opening and closing of an electric circuit, and is used for the purpose of protecting and controlling the load by operating / stopping a load such as a motor. Formed.

That is, the magnetic contactor detects when an overcurrent flows to a load by a thermal overload relay and turns off the operation power of the magnetic contactor to stop the load. The thermal relay hereinafter) is used in combination with an electronic switch (MS).

On the other hand, the magnetic contactor is used to fix the bottom surface to the rail when installed, it is usually used to install a plurality of contactors adjacent.

Such a magnetic contactor will be described with reference to the accompanying drawings.

1 is a view showing a fixing device of a conventional magnetic contactor, Figure 2 is a view showing a state in which the rail coupled to the conventional magnetic contactor. 3 is an exploded view of a fixing device of a conventional magnetic contactor.

As shown in the drawing, the conventional magnetic contactor fixing device includes a lower frame 10 having a rail groove 12 formed to insert a rail 15 into a rear surface thereof, and a locking step formed at an upper end of the rail groove 12. 11) and the latch portion 20, which is installed to be able to linearly move up and down on the bottom of the lower frame 10 and has an operation hole 22 formed at its lower end, and is installed between the latch portion and the lower frame 10. It consists of a spring 30 to provide a restoring force to the latch portion 20.

In order to fix the magnetic contactor to the rail 15 by the fixing device configured as described above, when the tool is inserted into the operation hole 22 formed at the lower end of the latch portion 20 or held by the hand, the force is applied downward. 20 is moved downward while compressing the spring (30).

Then, when the force applied to the latch portion 20 is removed, the latch portion 20 is returned upward by the tension force of the spring 30 and the fixing jaw 23 formed on the latch portion 20 is As it enters into the rail groove 12, the lower end of the rail 15 is constrained, thereby allowing the magnetic contactor to be fixed to the rail 15.

However, in the conventional magnetic contactor fixing device as described above, when the magnetic contactor is detached from the rail 15, a separate mechanism such as a driver should be used. In this case, the tip of the driver is operated by the latch unit 20. The latch portion 20 is moved downward by inserting into the ball 22 and applying downward force, but this detachable structure is a structure in which force is transmitted only through the tip of the driver. There was a problem that the entire latch portion 20 needs to be replaced due to wear or breakage of the operation hole 22 portion of the latch portion 20.

In particular, when the thermal overload relay 40 is attached to the lower end of the electromagnetic contactor as shown in FIG. 4, it is difficult to access the apparatus, and after disassembling the thermal overload relay 40 at the lower end, the apparatus is used. There was a problem that can not only disassemble the electronic contactor.

The present invention has been made to solve the above problems, by allowing the fixed state of the magnetic contactor fixed to the rail through the latch portion can be easily released through the auxiliary mechanism, simply by detaching the magnetic contactor with a small force It is an object of the present invention to provide a fixing device for a magnetic contactor to increase the convenience of work.

The fixing device of the magnetic contactor according to the present invention for achieving the above object, the lower frame having a locking step for supporting one side of the rail so that the rail is inserted into the rear; A latch unit coupled to the rear surface of the lower frame so as to linearly move upward and downward to support the other side of the rail; A spring installed between the latch portion and the lower frame to provide a restoring force to the latch portion; It is coupled to the lower frame so as to be slidable, characterized in that it comprises an auxiliary frame for releasing the fixing of the rail by pushing the latch portion while sliding movement under the force from the outside.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

5 is a perspective view showing a fixing device of the magnetic contactor according to the present invention, Figures 6 and 7 as a fixing device of the magnetic contactor according to the present invention, a view showing a detached state thereof. 8 is a view schematically showing the direction of the force acting between the auxiliary frame and the latch portion according to the present invention.

As shown, the fixing device of the magnetic contactor according to the present invention is the lower frame 10 provided with a locking step 11 for supporting one side of the rail 15 so that the rail 15 is inserted into the rear surface and; A latch unit 20 coupled to a rear surface of the lower frame 10 to enable a linear movement up and down to support the other side of the rail 15; A spring 30 installed between the latch portion 20 and the lower frame 10 to provide a restoring force to the latch portion 20; It is coupled to the lower frame 10 so as to be slidable, and comprises an auxiliary frame 100 for releasing the fixing of the rail 15 by pushing the latch portion 20 while sliding movement under the force from the outside do.

The auxiliary frame is slidably coupled in a direction perpendicular to the direction of movement of the latch portion at a position adjacent to the latch portion. That is, the latch unit is installed to linearly move left and right with respect to the latch unit linearly moving up and down.

The auxiliary frame may include a body part having a coupling part coupled to the lower frame to be slidably movable, and a contact part protruding from one side of the body part to be in contact with the latch part. The contact portion is installed to push the latch portion by transmitting a force acting on the auxiliary mechanism portion from the outside to the latch portion.

Here, the lower frame is provided with a protruding jaw protruding in a predetermined shape to form the motion trajectory of the auxiliary frame, the coupling portion of the auxiliary frame has a structure recessed so that openings are formed at both ends in a shape corresponding to the protruding jaw. Have Accordingly, the auxiliary frame is fitted to the protruding jaw through the opening, and the direction of the arrow shown in FIG. 6 indicates the direction in which the auxiliary frame is fitted to the lower frame. In this case, in order to prevent the auxiliary mechanism from being separated, it is preferable that the protruding jaw has a structure in which its cross-sectional area becomes wider as it moves away from the point where the protruding portion starts.

In addition, the contact portion of the auxiliary frame is formed to be inclined toward the latch portion in contact with the edge of the latch portion, the upper end of the contact portion is formed higher than the upper end of the latch portion, in a direction perpendicular to the direction of movement of the auxiliary frame The latch can be pushed out. That is, when a force acts on the auxiliary frame from the outside and moves in the direction shown in FIG. 8, the contact portion changes the direction of the force and transmits the latch portion to the latch portion so that the latch portion rides down the inclined surface of the contact portion. To get pushed down.

According to this structure, even if a separate mechanism such as a driver is not used, the latch portion can be pushed out by a simple operation such as pressing the auxiliary frame by hand, and the magnetic contactor can be easily detached from the rail.

As seen from the above, the fixing device of the magnetic contactor according to the present invention is to install the auxiliary frame separately, it is possible to simply release the latching state of the latch portion with a small force even without using a mechanism such as a driver, etc. It is easy to remove and to increase the convenience of work, and also to make it easy to check and replace.

Claims (5)

A lower frame having a latching jaw supporting one side of the rail to allow the rail to be inserted and fixed to a rear surface thereof; A latch portion coupled to the rear surface of the lower frame to enable a linear movement up and down to support the other side of the rail; A spring installed between the latch unit and the lower frame to provide a restoring force to the latch unit; A sliding device coupled to the lower frame, the fixing device of the magnetic contactor, characterized in that it comprises an auxiliary frame for releasing the fixing of the rail by pushing the latch portion while sliding movement under the force from the outside. The method of claim 1, The auxiliary frame is fixed to the magnetic contactor, characterized in that coupled to the sliding movement in the vertical direction and the direction of movement of the latch portion in a position adjacent to the latch portion. The method of claim 2, The auxiliary frame is fixed to the magnetic contactor comprising a body portion having a coupling portion coupled to the lower frame, and a contact portion protruding from one side of the body portion in contact with the latch portion. The method of claim 3, wherein The lower frame is provided with a protruding jaw protruding in a predetermined shape to form a motion trajectory of the sub-frame, and the coupling portion of the sub-frame is recessed so that openings are formed at both ends in a shape corresponding to the protruding jaw. Fixing device for a magnetic contactor, characterized in that fitted through the opening to the protruding jaw. The method of claim 3, wherein The contact portion of the auxiliary frame is inclined toward the latch portion so as to contact the edge of the latch portion, the upper end of the contact portion is formed higher than the height of the latch portion, the rat in a direction perpendicular to the direction of movement of the auxiliary frame Fixing device for a magnetic contactor, characterized in that to push the tooth.

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