KR200353103Y1 - Reset Button Assembly of Earth Leakage Circuit Breaker for Outlet - Google Patents

Abstract

The present invention relates to an outlet type Ground Fault Circuit Interrupter reset button assembly, which can provide contact force to compensate for contact wear as well as accurate contact operation of the ground fault interrupter with one push operation. And a ground fault circuit interrupter reset button assembly.

Ground fault circuit breaker reset button assembly according to the present invention, the reset button is installed on the inner cover of the outlet, the push button is coupled with the reset button and the engaging groove is formed at the bottom, the reset button is in the original state A return spring that adds an elastic force to return to the return bar, a crossbar formed at the bottom of the push bar, and a insertion bar formed therein, a movable contact coupled to the insertion hole, a fixed contact contacting the movable contact by pressing a reset button, and a push bar Plate-shaped amateur coupled to the lower portion of the push bar is formed to pass through the bottom of the push bar, the spring to allow the locking hole of the plate-shaped amateur to be locked to the locking groove of the push bar when the reset button is pressed, plate-shaped amateur and spring The core is located between and coupled to, and receives and guides the spring and the core, the coil is wound on the outside In the known one consisting of a bobbin for perturbing the core to the inside by the magnetization when the short circuit is shorted, the return spring is characterized in that it is coupled to the lower end of the push bar to transmit the compression force generated by the pressing of the reset button to the bottom.

In addition, the present invention is characterized in that it further comprises a test plate is installed on the upper bobbin, and the test button is installed on the upper portion of the test plate and pressed to contact the test plate to magnetize the bobbin.

Therefore, the outlet type Ground Fault Circuit Interrupter reset button assembly according to the present invention allows the contact operation of the breaker contact by the reset button to be performed by one push operation, so that the operation test using the operation test equipment is smooth. The contact force is provided to compensate for contact wear, which can extend the life of the circuit breaker, and ensure the reliability of operation.

Description

Reset Button Assembly of Earth Leakage Circuit Breaker for Outlet

The present invention relates to an outlet type ground fault circuit interrupter reset button assembly, and more particularly, an outlet type ground fault circuit interrupter reset button for shutting off power in a humid place such as a bathroom. It is about assembly.

In general, an outlet type ground fault circuit interrupter (Ground Fault Circuit Interrupter) is to prevent a safety accident by detecting and blocking it when a short circuit or an electric shock occurs. The earth leakage breaker is energized by pressing the reset button and the moving contact contacts the fixed contact, and when the earth leakage occurs, the moving point is separated from the fixed contact to cut off the current.

1 and 2 show a conventional ground fault circuit interrupter reset button assembly used for the operation of these contacts.

As shown, the reset button 210, the return spring 220 is coupled to the bottom of the reset button 210 to return the reset button 210 to the original position, and is coupled to the reset button 210 and the locking groove ( Push bar 230 formed in the lower portion, the cross bar 240 is formed in the lower portion of the push bar and the insertion hole 241, the mobile contact 250 is coupled to the insertion hole 241, the reset button By pressing the 210, the fixed contact 260 is in contact with the mobile contact 250, and the engaging hole 271 is coupled to the lower portion of the push bar 230 to allow the lower portion of the push bar 230 to pass through. And the plate-shaped amateur 270 is coupled to the coupling hole 242 formed on the upper portion of the crossbar 240, the locking hole 271 of the plate-shaped amateur 270 when pressing the reset button 210 is caught by the push bar 230 A spring 280 for applying an elastic force to be locked and locked to the groove 231, a core 290 positioned and coupled between the plate-shaped amateur 270 and the spring 280, The spring 280 and the core 290 of the core 290 is accommodated and the coil 301 is wound around the outside is composed of a bobbin 200 for sliding the core 290 to the inside by magnetization upon leakage. 1 and 2 illustrate a state in which a current is blocked in a state in which the mobile contact 251 of the mobile contact 250 and the fixed contact 261 of the fixed contact 260 are spaced apart from each other.

3 and 4 illustrate a state in which the reset button 210 is energized in such a state.

As shown, when the reset button 210 is pressed, the return spring 220 installed under the reset button is compressed and the push bar 230 coupled to the reset button 210 is lowered. At the same time, the locking hole 271 of the plate-shaped amateur 270 is locked by the locking groove 231 formed in the lower portion of the push bar 230 which is moved by the spring 280 elastic force of the core 290 to be locked. In addition, the plate-shaped amateur 270 moved by the spring 280 elastic force of the core 290 is coupled to the coupling hole 242 formed on the crossbar 240.

When the reset button 210 is released in this state, as shown in FIGS. 5 and 6, the reset button 210 is returned to its original position by the return spring 220, and the plate-shaped armature 270 is raised. do. In addition, the crossbar 240 coupled to the plate-shaped amateur 270 is raised, and thus, the movable contact 250 coupled to the insertion hole 241 of the crossbar 240 is raised to contact the fixed contact 260. To be. At the same time, the core 290 coupled to the plate-shaped armature 270 is raised, and the bobbin 300 containing the core 290 is also raised. As such, when the reset button 210 is pressed and released, the movable contact 250 is raised by the return spring 220 compression force to be in contact with the fixed contact 260 to be used in an energized state.

In the event of a short circuit or electric shock, the moving contact of the earth leakage breaker will be cut off from the fixed contact. Its operation is as follows.

When a short circuit occurs, a current flows in the coil 301 wound on the outside of the bobbin 300, and the coil 301 is magnetized by the current. The magnetized coil 301 moves the core 290 into the bobbin 300, and the plate-shaped amateur 270 coupled to the core 290 also moves toward the bobbin 300. At this time, when the plate-shaped amateur 270 is moved toward the bobbin 300, the locking hole 271 of the plate-shaped amateur 270 locked by the locking groove 231 of the push bar 230 is locked from the locking groove 231. Spaced apart and the push bar 230 is raised. In addition, the reset button 210 coupled to the upper portion of the push bar 230 is raised. At the same time, the plate-shaped armature 270 coupled to the coupling hole 242 of the crossbar 240 is spaced apart from the coupling hole, and the movable contact 250 is spaced apart from the fixed point point 260 by the elasticity of the movable contact 250. The crossbar 240 is lowered by the elasticity of the movable contact 250. This operation is to be the cutoff state of the earth leakage breaker shown in Figs.

In the conventional ground fault circuit interrupter having such a configuration, the mobile contact 251 of the mobile contact 250 is in contact with the fixed contact 261 of the fixed contact 260 by one push operation. The mobile contactor 251 and the fixed contactor 261 are brought into contact with each other by being pressed and released. Therefore, the operation test by the appearance of the push bar 230 of the automatic operation tester is impossible, the contact wear occurs inevitably generated in the repeated use process and the contact failure is inevitable only by the elasticity of the movable contact 250. Is there.

Therefore, the present invention has been devised to solve the problems of the prior art as described above, the object of the present invention is to make the contact operation of the contact of the earth leakage breaker exactly in one push operation and to compensate for the contact wear It provides a Ground Fault Circuit Interrupter reset button assembly to provide contact force for the system.

1 and 2 is a cross-sectional view showing a state of the conventional outlet type circuit breaker breaker.

Figure 3 and Figure 4 is a cross-sectional view showing a conventional outlet type earth leakage breaker reset button pressed state.

5 and 6 is a cross-sectional view showing a state of a conventional electrical outlet type earth leakage breaker.

7 is an external view of the outlet type earth leakage breaker according to the embodiment of the present invention;

8 and 9 are sectional views showing the outlet type earth leakage breaker reset button assembly according to an embodiment of the present invention.

10 and 11 are cross-sectional view showing the operation of the outlet type earth leakage breaker reset button according to an embodiment of the present invention.

12 is an enlarged view of FIG. 11;

Figure 13 is a cross-sectional view showing the operation state of the outlet type earth leakage breaker test button according to an embodiment of the present invention.

** Description of the symbols for the main parts of the drawings **

10: reset button 20: push bar

21: Hanging groove 30: Return spring

40: crossbar 41: coupling hole

50: movable contact 60: fixed contact

70: plate amateur 71: hook hole

80: spring 90: core

100: bobbin 110: test plate

120: test button

According to a feature of the present invention for achieving the object as described above, the reset button is installed on the inner cover of the outlet, the push bar interlocked with the reset button and the engaging groove is formed at the bottom, the reset button is returned to its original state A return spring for applying an elastic force to the elastic member, a cross bar having an insertion hole formed under the push bar, a movable contact coupled to the insertion hole, a fixed contact contacting the movable contact by pressing a reset button, and A plate-shaped amateur coupled to a lower portion of the push bar and formed with a locking hole through which the lower portion of the push bar passes, and a spring for adding an elastic force to lock the locking hole of the plate-shaped amateur into the locking groove of the push bar when the reset button is pressed; And a core coupled between the plate-shaped armature and the spring to receive the spring and the core. In the known, consisting of a bobbin for guiding and coiling the coil on the outside to perturb the core by magnetization when the short circuit occurs, the return spring is coupled to the lower end of the push bar to transmit the compression force generated by pressing the reset button to the bottom It is characterized by.

In addition, the present invention is characterized in that it further comprises a test plate installed on the bobbin and a test button installed on top of the test plate to contact the test plate by pressing to magnetize the bobbin.

Hereinafter, an embodiment of an outlet type ground fault circuit interrupter reset button assembly according to the present invention having the configuration as described above will be described in detail with reference to the accompanying drawings.

Figure 7 shows the external shape of the outlet type earth leakage breaker according to the embodiment of the present invention, Figure 8 and Figure 9 is a cross-sectional view showing the outlet type earth leakage breaker reset button assembly according to an embodiment of the present invention.

As shown, an outlet type ground fault circuit interrupter reset button assembly according to an embodiment of the present invention, a reset button 10, a push bar 20 coupled to the reset button 10, A return spring 30 coupled to the lower end of the push bar 20, a crossbar 40 positioned below the return spring, a movable contact 50 coupled to the crossbar, and a contact with the movable contact. The fixed contact 60, the plate-shaped amateur 70 is coupled to the lower portion of the push bar 20, the spring 80 for applying an elastic force to the plate-like amateur 70, and the core 90 is coupled to the plate-shaped amateur ), A bobbin 100 for receiving and guiding the spring 80 and the core 90, a test plate 110 installed on the bobbin 100, and an upper portion of the test plate 110. Is made of a test button 120 in contact with the test plate 110 .

The reset button 10 is installed on the outlet cover 1 so that the movable contact 50 moves by one push to allow the movable contact 51 to contact the fixed contact 61 of the fixed contact 60. It serves to energize. The push bar 20 is coupled to the lower portion of the reset button 10 and the push bar 20 is pushed down when the reset button 10 is pressed.

Therefore, unlike the conventional structure of the outlet type earth leakage breaker operating structure, there is an advantage that the contact operation of the earth leakage breaker is made to be turned on by one pressing operation of the reset button.

The push bar 20 is coupled to the lower portion of the reset button 10 and interlocked with the reset button 10. A locking groove 21 is formed below the push bar 20. The locking groove 21 is locked when the plate-shaped armature 70 is pressed when the reset button 10 is pressed to maintain the energized state by continuing the pressed state of the reset button 10.

The return spring 30 is coupled to the lower end of the push bar 20 serves to transfer the compression force generated when the reset button 10 is pressed down. In addition, the return spring 30 prevents abrasion due to the contact of the contacts 50 and 60 by elastic force when the movable contact 50 moves to the fixed contact 60 and contacts the movable contact 50. That is, it provides a compensating contact force that prevents contact wear. In addition, the return spring 30 of the push bar 20 and the push bar 20 when the locking hole 71 of the plate-shaped amateur 70 is spaced apart from the locking groove 21 at the time of a short circuit The reset button 10 coupled to the upper portion provides an elastic force to return to the upper portion.

Accordingly, the outlet type ground fault circuit interrupter reset button assembly according to the present invention is different from the contact method caused by the elasticity of the movable contact of the ground fault interrupter used in the related art, the return generated by pressing the reset button. When the movable contact 50 is moved by the compressive elastic force of the spring 30 to ensure a reliable contact operation, when the movable contact 51 comes into contact with the fixed contact 61 of the fixed contact 60. The return spring 30 has the advantage of providing a contact force to compensate for the wear of these contacts to extend the life of the breaker.

The crossbar 40 is positioned below the return spring 30 to move downward by the elastic force of the return spring. The crossbar 40 has two coupling holes 41 formed therein, and the movable contact 50 is coupled thereto. Therefore, when the crossbar 40 is lowered, the movable contact 50 is lowered so that the movable contact 51 of the movable contact 50 contacts the fixed contact 61 of the fixed contact 60. .

The movable contact 50 is coupled to the coupling hole 41 formed in the crossbar 40. The movable contact 50 is rotated by the lowering of the crossbar 40 such that the movable contact 51 comes into contact with the fixed contact 61 of the fixed contact 60, thereby becoming an energized state. In addition, the movable contact 50 itself is added to the elasticity to play a role of raising the crossbar 40 by this elasticity when a short circuit.

The fixed contact 60 is in contact with the moving contact 51 of the mobile contact 50 which is moved downward when the reset button 10 is pressed to be energized.

The plate amateur 70 is coupled to the lower portion of the push bar (20). The plate-shaped amateur 70 is formed with a locking hole 71 in the form of a long hole. The locking hole 71 is inserted into the lower portion of the push bar 20, when the reset button 10 is pressed to lock the push bar 20 is caught in the locking groove 21 of the push bar 20. The pressed state of the reset button 10 is continued. Since the plate-shaped armature 70 is coupled to the core 90 and the core 90 is supported by the spring 80, the locking hole when the reset button 10 is pressed by the elastic force of the spring 80. 71 is locked to the locking groove 21 to lock the push bar (20).

The spring 80 is installed inside the bobbin 100 to provide elastic force to the core 90 to provide elastic force to the plate-shaped armature 70 that is coupled to the core 90. Accordingly, the plate-shaped amateur 70 is always maintained in contact with the push bar 20. When the reset button 10 is pressed, the locking hole 71 of the plate-shaped armature 70 is caught by the locking groove 21 of the push bar 20 to lock the push bar 20.

The core 90 is guided in the bobbin 100 and is coupled to the spring 80 and the plate-shaped armature 70. The core 90 serves as an intermediate medium that transmits the compressive force of the spring 80 to the plate-shaped amateur 70. In addition, the core 90 is moved to the inside of the bobbin 100 by magnetizing the bobbin 100 by a coil wound on the bobbin 100 when a short circuit occurs, and further, the core 90 The plate-shaped armature 70 coupled is pulled toward the bobbin 100. Accordingly, the locking hole 71 formed in the plate-like armature 70 is moved toward the bobbin 100, so that the locking hole 21 of the plate-shaped armature 70 is caught in the locking groove 21 formed in the push bar 20. Locked by the (71) is released, by the elasticity of the return spring 30 is coupled to the bottom of the push bar 20 and the elasticity of the mobile contact 50 is coupled to the crossbar (40) The push bar 20 is raised and returned, and the reset button 10 is also returned by the return of the push bar 20.

The bobbin 100 receives and guides the spring 80 and the core 90. The coil 101 is wound on the outside of the bobbin 100, and magnetized by the coil 101 at the time of short circuit, thereby moving the core 90 into the bobbin 100.

The test plate 110 is contacted by pressing the test button 120 to magnetize the coil 101 to perturb the core 90 into the bobbin 100.

The test button 120 is installed on the test plate 110 to be in contact with the test plate 110 by pressing, and to magnetize the bobbin 100 to move the core 90. That is, when the test button 120 is pressed, the test plate 110 comes into contact with the test plate 110 and the bobbin 100 is magnetized to move the core 90 into the bobbin 100. Accordingly, the armature 70 coupled with the core 90 is moved toward the bobbin 100, and the push bar 20 is unlocked while the push bar 20 locked by the armature 70 is unlocked. Move to, the moving contact 50 is spaced apart from the fixed contact 60 to block the current.

Therefore, the ground fault circuit breaker reset button assembly according to the present invention is different from the conventional ground fault circuit breaker in which the breaker operates only in a state of short circuit, but by a reset button 10 and a test button 110. In this state, the current can be cut off, and the current breaking operation can be tested in advance.

10 and 11 are cross-sectional views showing the operation state of the reset button of the earth leakage breaker for an outlet according to an embodiment of the present invention, Figure 12 is an enlarged view of FIG.

As shown, when the reset button 10 is pressed, the push bar 20 is lowered, and the locking groove 71 of the plate-shaped amateur 70 in the locking groove 21 formed in the push bar 20. Will be locked. At this time, the locking hole 71 of the plate-shaped amateur 70 is moved by the length L1 by the elastic force of the spring 80 is locked to the locking groove 21 is locked. At the same time, as the push bar 20 descends, the return spring 30 is compressed, and the compressed return spring 30 lowers the crossbar 40 installed below the return spring 30 by the compressive elastic force. do. Accordingly, the movable contact 50 coupled to the crossbar 40 moves to the fixed contact 60 and comes into contact with the energized state.

Figure 13 is a cross-sectional view showing the operation state of the test button of the earth leakage breaker for an outlet according to an embodiment of the present invention.

As shown in the drawing, when the test button 120 is pressed, the test button 120 comes into contact with the test plate 110, and the bobbin 100 is magnetized to move the core 90 to the bobbin 100. ) Will be moved in length by L1. Accordingly, the amateur 70 coupled with the core 90 is also moved toward the bobbin 100 by the length L1. In this case, the push bar 20 which is locked by the locking groove 21 of the push bar 20 by the locking hole 71 of the amateur 70 is spaced apart from the locking groove 21 of the locking hole 71. As shown in FIGS. 8 and 9 to move the length L2 to the top, and at the same time the movable contact 50 is added elastically is separated from the fixed contact 60 to block the current. Therefore, the present invention can test the operating state of the reset button 10 in a state in which the test button 120 and the test plate 110 are energized in advance. In addition, the reset button 10 operates in the same manner as the operation state in which the test button 120 is pressed even when a short circuit occurs.

As described above, according to the present invention, the contact operation of the contact point of the circuit breaker by the reset button can be performed by one push operation, so that the operation test using the operation test facility can be performed smoothly, and to compensate for contact wear. The contact force is provided to extend the life of the circuit breaker, it is possible to ensure the reliability of the operation.

Claims (2)

The reset button 10 installed on the inner cover 1 of the outlet, the push bar 20 coupled with the reset button 10 and the engaging groove 21 is formed at the bottom, and the reset button 10 A return spring 30 for applying an elastic force to return to its original state, a cross bar 40 positioned below the push bar 20 and having an insertion hole 41 formed therein, and a movable contact coupled to the insertion hole 41. 50, a fixed contact 60 contacting the movable contact 50 by pressing the reset button 10, and a lower portion of the push bar 20 coupled to a lower portion of the push bar 20. The plate-shaped amateur 70 having a locking hole 71 to pass therethrough, and the locking hole 71 of the plate-shaped amateur 70 when the reset button 10 is pressed into the locking groove 21 of the push bar 20. A spring (80) for applying an elastic force to be locked and locked, a core (90) coupled between the plate-shaped amateur (70) and the spring (80), and the spring (8) In the well-known thing which consists of the bobbin 100 which accommodates and guides the core 90, and the coil 101 is wound outside and perturbs the core 90 inside by magnetization at the time of a short circuit, The return spring 30 is an outlet type earth leakage breaker reset button assembly, characterized in that coupled to the lower end of the push bar 20 to transmit the compression force generated by pressing the reset button 10 to the bottom. The method of claim 1, Is installed on the bobbin 100 and the test plate 110, The outlet type earth leakage breaker reset button further comprises a test button 120 installed on the test plate 110 to contact the test plate 110 by pressing to magnetize the bobbin 100. assembly.