KR19990014174U - Switch structure with overload breaking - Google Patents

Abstract

In the present invention, the power supply switch and the overload breaker are provided in one structure to be assembled at a time when applied to a multi-outlet, so that the assembly is easy and the production cost can be reduced. Disclosed is a switch structure having an overload cut-off function that can easily detect the power cut by the power cut by the appropriate action.

Description

Switch structure with overload breaking

The present invention relates to a switch structure having an overload blocking function, and more specifically, is applied to the multi-conductor or transformer is applied to them, or at the same time to cut off the power supply when the overload is connected to itself It relates to a switch structure for protecting various electrical appliances.

In general, multi-outlets are equipped with a switch for applying and disconnecting power. Recently, an automatic power breaker has been configured together to protect electrical appliances connected to the switch and an outlet from overload.

Recently, as disclosed in Korean Utility Model Registration No. 108084, a switch structure having a circuit breaker and a power supply indicator is also used. Specifically, the switch structure disclosed herein includes a housing having an inner space formed therein and having a locking means attached to the outside along both sides thereof, a cover having a shape coupled to the housing, and a pair of pivot pins at the lower sides of both sides. A seesaw button pivotally mounted to the cover and the housing, three electrically conductive blades each serving as a grounding wire, a heating wire, and a neutral terminal, each of which is accommodated in three locking slots formed at the bottom of the housing; A first flexible electroconductive plate having a first end and firmly received in an inner slot of the housing, and having a first end fixed at the top of the neutral blade and extending downwards of the first flexible electroconductive plate. A row having a second end with a second connecting terminal detachably connected to the second end And a connecting plate having a deformable electroconductive plate, a third plug strip received in a hole formed on the block from one side of the seesaw button, and a locking slot detachably connected to the second flexible electroconductive plate at the front part thereof. When the left side of the seesaw button is pressed, the connecting plate pushes the second flexible electroconductive plate downward to connect the first connection terminal and the second connection terminal of the heating wire blade to make a switched-on state, The second flexible electroconductive plate is deformed by the heat generated at the connection point, thereby automatically cutting off the connection terminals.

However, in the prior art exemplified above, when the switch and the circuit breaker are separately manufactured and assembled in the multi-conductor as in the former, their manufacture and assembly are made twice, which is cumbersome and economical. In the case of a switch structure having a circuit breaker and a power supply indicator, one switch operates as a power-on switch and at the same time operates as a cutoff switch. However, the structure is complicated and it is complicated by using two flexible electroconductive plates. It is difficult to check whether the power is cut off due to overload, for example, when the power is cut off because there is no cut off switch. Therefore, in the case of the power cut off due to overload, when the switch is turned on without any follow-up, there is a problem that the power is cut off by the overload again.

Therefore, the present invention is to solve the problems of the prior art, the purpose of which is to separate the application of the power switch and the breaker switch and the overload circuit breaker to form a housing to facilitate the user and at the same time to a single structure By constructing two unit objects together, an object of the present invention is to provide an overload cut-off switch structure that can be easily assembled into a power supply switch of a multi-conductor or a transformer.

1 is a perspective view of a switch structure having an overload blocking function according to the present invention.

2 is an exploded perspective view of a switch structure having an overload breaking function.

3 is a cross-sectional view of the switched on state along the line A-A of FIG.

4 is a cross-sectional view of the switched-off state along line A-A in FIG.

Explanation of symbols for main parts of the drawings

10 housing 11 switching unit

12: insertion groove 13: block

14: coupling pin 15: fastening member

20: switch button 22: pivot pin

24: pedestal 26: lamp

30: pressure member 32, 66: spring

40: connection plate 42, 72, 57, 86: contact

50, 54, 56: blade 52: connection piece

55: guide 58: connection tab

58a, 76: connector 59: connecting pin

74, 74a, 92: coupler 60: blocking button

62: blocking piece 64: stone tongue

70: first connection plate 80: second connection plate

82: connecting piece 84: bimetal

90: cover member

Switch structure for overload cut-off for achieving the object of the present invention, the interior space is divided into a switching unit and the blocking unit and both sides of the housing is provided with a fastening member for assembling the multi-conductor or transformer; A pair of pivot pins are provided at the lower sides of both sides, and the switch button is pivotally mounted to the housing, the lower part of the switch button is assembled, and the lower part of the center has a cylindrical body extended, and is assembled to receive elasticity in the cylindrical body of the pedestal. Pressurized member, a part of which is fixed to three fastening slots formed at the bottom of the housing, and electrically conductive blades respectively acting as ground, neutral and hot wire terminals, and a first end connected to the neutral terminal blade, and a second end. A switching unit comprising an electrically conductive connecting plate housed above the hot wire blade blades and seesawed according to the operation of the pressing member so that a second end thereof is connected / shorted to the hot wire blade blades; An electrically conductive first connection plate accommodated and fixed inside the blocking unit of the housing and connected to the heat terminal blade of the switching unit, and an electrically conductive second connection plate accommodated and fixed to the opposite side of the first connection plate, and the second connection plate. A bimetal is fixedly connected to the first end and the second end is connected to the first connecting plate, and a protrusion and a blocking piece are elastically provided at a lower portion thereof so that the protrusion is formed in the inner slot between the first and second connecting plates. It is supported so that the blocking piece is located below the connection point of the bimetal and the second connection plate and the blocking portion consisting of a blocking button for shorting the connection point when the overload by the elastic force of the protrusion; And, it is characterized in that it comprises a cover member fitted to the housing coupled.

In the present invention, the switching unit may be configured such that a lamp having a predetermined connection terminal is received in the switch button by a pedestal and the lamp is connected / shorted to the ground terminal blade according to the operation of the switch button.

Hereinafter, a switch structure having an overload breaking function according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing an example of a switch structure having an overload blocking function according to the present invention. Referring to the drawings, the switch structure is fixedly installed in the housing 10 having a predetermined shape is completed by assembling the cover member 90 after assembling and installing all the components. The switch structure can be largely divided into a switching unit and a blocking unit. Most of the components are installed inside the housing 10, and in the case of the switch button 20, the blocking button 60, and the three blades 50, 54, 56 are partially housed in the housing 10 and partly. Is protruded from the outside of the housing.

It will be described in more detail with reference to the exploded perspective view of FIG. First, the housing 10 will be described, and then the switching unit 11 and the blocking unit 13 installed in the housing will be described.

The housing 10 of the switch structure has a space formed therein and predetermined slots in which the components of the switch and the breaker are fitted and fixed. In addition, since the switching unit 11 and the blocking unit 13 are separated and the housing 10 wall of the blocking unit 13 is opened, the cover member 90 is coupled and closed after assembling each component. . In other words, the housing 10 has a predetermined diaphragm which is somewhat protruded perpendicularly to the wall between the switching portion 11 and the forming space of the blocking portion 13, and protrudes toward the blocking portion 13 at each corner of the diaphragm. Coupling pins 14 are provided. The upper surface of the housing 10 has a hole through which the buttons of the switching unit 11 and the blocking unit 13 can be assembled, and fastening members for assembling the switch structure on the outer wall of both sides of the housing wall. (15) is provided.

The switch 11, the switch button 20, the pedestal 24, the pressing member 30, the three conductive blades 50, 54, 56, and the conductive connecting plate 40 or Assembly is fixed.

The switch button 20 has a pair of pivot pins 22 formed on both sides of the lower portion, and an empty space is formed at the lower portion thereof. The switch button 20 is assembled to the pivot pin 22 is inserted into the insertion groove 12 of the top of the housing (10).

In the lower empty space of the switch button 20, a pedestal 24 having a cylindrical body extended in the center is inserted in a state in which a lamp 26 having a predetermined connection terminal 28 (see FIGS. 3 and 4) is inserted. Are assembled. That is, the lamp 26 is supported by the pedestal 24. In the cylindrical body of the pedestal 24, a rod-like pressing member 30 is inserted and assembled together with the spring 32.

The three electrically conductive metal blades 50, 54, 56 function as ground wires, neutral wires and hot wire terminals, respectively, and part of them are accommodated in three fastening slots formed at predetermined intervals on the bottom of the housing 10. . The grounding terminal blade 50 has a connecting piece 52 extending upward, and the connecting piece 52 is connected to the connecting terminal 28 of the lamp 26 when the switch button 20 is turned on or off. / Shorted. The neutral terminal blade 54 extends from both ends toward the upper portion to form a guide 55 for preventing the left and right movement of the connecting plate 40 described later. In addition, the hot-wire terminal blade 56 is provided with a connecting tab 58 having a connecting piece extending vertically on the upper part and having a connector 58a extending vertically to correspond to the blocking portion 13.

The connection plate 40 has one end connected between the guides 55 of the neutral terminal blade 54, and the other end contact 42 (see FIGS. 3 and 4) is connected to the hot wire blade 56. It is housed above the connecting piece. In addition, it receives the pressure of the pressing member 30 from the upper side and seesaws from side to side according to its operation so that the contact point 42 is connected / shorted to the contact point 57 on the connection piece of the hot-terminal blade 56.

In the blocking unit 13, an electrically conductive first connecting plate 70, a second connecting plate 80, a bimetal 84, and a blocking button 60 are assembled and accommodated.

The first connecting plate 70 is fitted with the coupling pins 74 and 74a of the coupling pin 14 of the housing 10 corresponding thereto, and is connected to the hot wire blade 56. Specifically, the hot wire terminal blade 56 and the first connection plate are connected by fixing the connection pins 59 through the coupling holes 58a and 76.

The second connecting plate 80 is assembled by being fitted to the opposite coupling pin 14 of the first connecting plate, and at the interruption thereof, a contact 86 formed at one end thereof is connected to the contact 72 of the first connecting plate 70. The other end of the bimetal 84 which is connected so that short circuit is possible is fixedly connected. It is also optional but extending from the top may be provided with a connecting piece 82 with a predetermined line.

The cutoff button 60 has a protrusion 64 at the bottom thereof, and the spring 66 is fitted therein. In addition, the blocking piece 62 extends in the direction perpendicular to the protrusion 64. The blocking button 60 of this configuration is the first and second connection plate 70 in a state that the protrusion 64 is supported in the inner slot in the housing 10 and is elastically upward by the spring 66. It is assembled to be accommodated between the (80). Accordingly, the blocking piece 62 is located directly below the contact 86 of the bimetal 84 and the contact 76 of the first connecting plate 70 which are connected to each other in a short circuitable state.

The cover member 90 is finally assembled after all the components are housed in the housing 10. In other words, the coupling holes 92 formed at the four corner portions are assembled to the coupling pins 14 of the housing 10 corresponding thereto.

The operation of the switch structure having an overload blocking function according to the present invention configured as described above will be described with reference to FIGS. 3 and 4 showing the on / off state of the switch structure.

When the switch is turned on by pressing the on direction of the switch button 20 in the switch-off state, the pressing member 30 is pushed to one side while the base 24 fixed to the button and the pressing member 30 fitted thereto are pushed to one side. Pressing stops at the right bending position of the lower connection plate 40. At this time, the pressing member 30 can be moved smoothly while being pushed into the pedestal 24 by the elasticity of the spring (32). Accordingly, the contact 42 of the right end (see FIG. 3) of the connecting plate 40 is connected to the contact 57 of the hot terminal plate 50, so that the hot terminal plate 50 and the neutral terminal plate 54 are connected. Therefore, power is applied to the multi-outlet.

On the other hand, when the switch is turned on, the connecting piece 52 of the grounding terminal blade 50 is connected to the connecting terminal 28 of the lamp 26 so that the lamp is lit to display the switched on state externally.

On the contrary, when the switch is turned off (see FIG. 4), the pressing member 30 is pushed to the left side and the left side of the connecting plate 40 is pressed to the left side of the contact plate 40. The contact 57 of the ()) and eventually the hot terminal plate 50 and the neutral terminal plate 54 is short-circuited, the power to the multi-conductor is cut off. At this time, the portions 44 and 46 which are bent and extended vertically in both directions to the left end of the connecting plate 40 suppress the movement of the pressing member 30, thereby preventing the pressing member from being separated from the upper surface of the plate. At the same time, the connection plate is prevented from being pushed downward.

On the other hand, when an overcurrent, i.e., an overload is applied in the switched-on state, the first metal plate 70 connected to the contact 86 and the hot wire blade 56 becomes flexible by the heat, and the bimetal 84 on the side of the breaker 13 is heated. ), The connection force between the contacts 72 is weakened, and at this time, the blocking piece 60 is pushed toward the upper side while the blocking button 60 receiving the elasticity of the spring 66 is pushed toward the two contacts 72 and 86. ) Is inserted into the circuit and short-circuits the connection with the hot wire blades 56 so that the current is cut off.

Therefore, when the cut-off button 60 due to overload is operated, the state of the multi-outlet, that is, which electronics are used to determine whether the overcurrent flows, and removes the cause-providing article and then presses the cut-off button 60 again to contact the two contacts. Since the blocking piece 62 between the 72 and 86 is pushed downward, power can be applied / blocked by the on / off of the switch button 20.

As described in detail above, the switch structure having an overload blocking function according to the present invention can be assembled at a time when applied to the multi-conductor by applying the power supply switch and the overload circuit breaker in a single structure to reduce the manufacturing cost as well as the assembly In addition to providing convenience, the switch button and the blocking button are separately configured, so that the user can easily detect this when the power is cut off due to overload and take appropriate measures.

Claims (3)

An inner space divided into a switching unit and a blocking unit, and a housing having fastening members for assembling with a multi-outlet or a transformer on both sides; A pair of pivot pins are provided at the lower sides of both sides, and the switch button is pivotally mounted to the housing, the lower part of the switch button is assembled, and the lower part of the center has a cylindrical body extended, and is assembled to receive elasticity in the cylindrical body of the pedestal. Pressurized member, a part of which is fixed to three fastening slots formed at the bottom of the housing, and electrically conductive blades respectively acting as ground, neutral and hot wire terminals, and a first end connected to the neutral terminal blade, and a second end. A switching unit comprising an electrically conductive connecting plate housed above the hot wire blade blades and seesawed according to the operation of the pressing member so that a second end thereof is connected / shorted to the hot wire blade blades; An electrically conductive first connection plate accommodated and fixed inside the blocking unit of the housing and connected to the heat terminal blade of the switching unit, and an electrically conductive second connection plate accommodated and fixed to the opposite side of the first connection plate, and the second connection plate. A bimetal is fixedly connected to the first end and the second end is connected to the first connecting plate, and a protrusion and a blocking piece are elastically provided at a lower portion thereof so that the protrusion is formed in the inner slot between the first and second connecting plates. It is supported so that the blocking piece is located below the connection point of the bimetal and the second connection plate and the blocking portion consisting of a blocking button for shorting the connection point when the overload by the elastic force of the protrusion; And a cover member inserted into and coupled to the housing. The overload cut-off according to claim 1, wherein the switching unit is configured such that a lamp having a predetermined connection terminal is received in the switch button by a pedestal, and the lamp is connected / shorted to the ground terminal blade according to the operation of the switch button. Switch structure with the function. The switch structure according to claim 1, wherein the first and second connection plates of the blocking unit are fitted into and fixed to the coupling hole of the housing for assembling the cover member.