KR19980060914A - Power switch - Google Patents

Abstract

A case having a heart cam operating member and a case having a plurality of terminals for operating on / off by contacting / non-contacting by interlocking with the operating member for at least a switching operation, and a cover member assembled on the upper portion of the case; In the power switch constituted, the case is partitioned into a first space portion and a second space portion for receiving and assembling the operating parts are arranged symmetrically in the interior, the outside is assembled with the cover member And a pair of central terminals and fixed terminals which are formed symmetrically with respect to each of the first and second spaces at predetermined intervals, and the actuating member has an inner side thereof. A slider comprising a movable piece formed to be deviated to one side from the longitudinal center of the slider and a slide pin formed at the bottom end of the movable piece; And a pair of rotary plates arranged to be connected to the slider for rotational movement in association with the linear movement of the slider, and a pair of elastic members installed under the rotary plate, and a pair of movable members disposed below the elastic member. The cover member may include a rotation guide groove for supporting the center projection of the rotating plate at the bottom of the upper surface, an assembly piece for engaging with the assembly protrusion of the case on the left and right sides thereof, and an assembly groove of the case at the front end thereof. The assembly groove is formed.

Therefore, due to the adoption of the leaf spring and the movable member installed in the lower portion of the rotating plate, while the structure is simple, the movable member is rotated at a predetermined angle in accordance with the rotation of the rotating plate, the power is supplied and shut off, thereby making sure the operation, malfunction This is not only prevented, but also the number of parts is minimized, so that the assembly is very easy and the manufacturing cost can be significantly reduced.

Description

Power switch

The present invention relates to a power switch, and more particularly, the movable terminal is rotated at a predetermined angle in accordance with the rotation of the rotary plate to ensure that the supply and interruption of the power is made by a reliable operation to prevent malfunction and reduce the number of parts assembly The present invention relates to a power switch that can improve the performance and significantly reduce the manufacturing cost.

Conventionally, a power switch applied to a home appliance or the like has a structure as shown in FIG. 1 is an exploded perspective view showing a conventional power switch.

On the bottom surface of the substantially rectangular case 10, a pair of central terminals 22 and fixed terminals 24 are fixedly installed at predetermined intervals, and above the central terminal 22 and the fixed terminals 24, respectively. An actuator 50 is provided as a movable member which is moved in the lateral direction according to the operation of the slider 40 which is elastically installed by the spring 30 which is an elastic member.

The slider 40 adopts the operation principle of the normal heart cam 41, and the slider 40 is formed on the upper side of the operation cam pin 44 and the case 10 fixed to the long groove 42. It consists of the leaf | plate spring 46 provided in 14. As shown in FIG. Reference numeral 48 is a knob attachment rod formed in a predetermined shape to attach a conventional switch knob (not shown).

The actuator 50 includes a conductive plate 52 selectively contacting / non-contacting the central terminal 22, an anchor 54 elastically coupled to the conductive plate 52, and the fixed terminal 24. It consists of a contact plate 56 in elastic contact with.

In addition, one end of the operation cam pin 44 is fixed to the fixing hole 12 of the case 10 in order to maintain a coupling state between the slider 40 and the case 10 installed on the upper side of the actuator 50. .

Finally, a lid 60 formed of a cover piece 62 and a fixing piece 64 having a tab hole 66 at the same time as the cover piece 62 and the cover piece 62 are bent at a right angle to the slider 40. Fastened to the case 10 in the manner of.

The conventional power switch configured as described above is operated as shown in FIG. 2 is a cross-sectional view illustrating an operation state of a conventional power switch. That is, referring to this drawing, in the state where the conductive plate 52 and the center terminal 22 are not in contact with each other and the power is cut off, when the switch knob is first pressed by an operator, the knob attaching rod 48 is pressed. Force is received by the slider 40, which slider 40 compresses the spring 30 inward.

At this time, the operation cam pin 44 is rotated in one direction according to the normal operation principle of the heart cam 41, one end of the operation cam pin 44 is caught by the heart cam 41. That is, the slider 40 in FIG. 2 moves in the right direction so that the operation wall 43 pushes out the actuator 50, and the components of the actuator 50, for example, the conductive plate ( 52, the conductive plate 52 is lowered by the combination of the anchor 54 and the contact plate 56.

Accordingly, the conductive plate 52 is brought into a conductive state while the center terminal 22 is elastically contacted to supply power. When the slider 40 is operated again, the heart cam 41 and the operation cam pin are operated again. As the slider 40 is returned to its original position by the operation of the 44, the actuator 50 is moved so that the conductive plate 52 and the central terminal 22 are in a non-contact state, and thus the supply of power is cut off. .

However, the conventional power switch having the above structure is difficult to assemble due to the large number of parts and the complicated structure, and also requires high precision for the machining of parts, which increases the manufacturing cost, and in particular, malfunction due to poor processing and assembly. There are various problems such as the occurrence of this problem.

Recognizing this problem, the technical field has long been trying to improve the operation of the power switch.

Accordingly, an object of the present invention is to have a structure in which the movable terminal is rotated at a predetermined angle in accordance with the rotation of the rotating plate to ensure that the supply and interruption of the power is made by a reliable operation to prevent malfunction and to reduce the number of parts to improve the assembly performance and manufacturing cost It is to provide a power switch that can significantly reduce the.

1 is an exploded perspective view showing a conventional power switch

2 is a cross-sectional view illustrating an operation state of a conventional power switch.

Figure 3 is an exploded perspective view showing a power switch of the present invention

Figure 4 is a bottom perspective view showing a rotating plate of the present invention

Figure 5 is for explaining the operating state when the power switch of the present invention, (a) is a cross-sectional view, (b) is a cross-sectional view.

Figure 6 is for explaining the operating state when the power switch of the present invention, (a) is a cross-sectional view, (b) is a cross-sectional view.

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

10 case 10A: first space part

10C: partition wall 10B: second space part

11, 61: rotation guide groove 12: fixing hole

13: Assembling protrusion 14: guide groove

15, 65: assembly groove 22: center terminal

24: fixed terminal 30: spring

40; Slider 41: Heart Cam

42: long groove 43: operating wall

44: working camp pin 46: leaf spring

47: movable piece 48: rod with knob

48: Knob mounting rod 49: Slide pin

50: actuator 52: conductive plate

54 anchor 56 contact plate

60: cover 62: cover piece

63: assembly piece 64: fixing piece

66: tab hole 70: rotating plate

72: center projection 73: projection body

74: slide hole 80: movable terminal

82: convex end 84: engaging projection

85a: contact hole 85: movable contact

86b: movable groove portion 86a: movable hole

86: leaf spring 90: center terminal

91, 93: fixed groove 92: fixed terminal

92a: Contact point 100: Fitting

The power switch of the present invention for achieving the above object comprises a case having a plurality of terminals to turn on / off power by contacting and non-contact by operating in conjunction with the heart cam operating member and the operating member for at least a switching operation; And a cover member assembled to an upper portion of the case, wherein the case is provided with a first space portion and a second space portion for receiving and assembling operation parts having symmetrical arrangements therein. A pair of central terminals, each of which is formed in a compartment, has an assembly protrusion and an assembly groove for assembling with the cover member, and is symmetrically installed at predetermined intervals in the first and second spaces. And a fixed terminal and the actuating member, the movable piece having an inner side thereof deviated to one side from the longitudinal center of the slider and the movable piece of the movable piece. A slider including a slide pin formed at the sub-end, a pair of rotary plates arranged to be connected to the slider for rotational movement in association with the linear movement of the slider, and a pair of elastic members installed under the rotary plate, A pair of movable members provided below the elastic member, the cover member is a rotary guide groove for supporting the center projection of the rotating plate on the bottom of the upper surface, the assembly piece for engaging with the assembly protrusion of the case on the left and right sides thereof; An assembly groove corresponding to the assembly groove of the case is formed at the front end thereof.

In the above configuration, the first space portion and the second space portion has partition walls for partitioning them, and a rotation guide groove for smoothly supporting and rotating the rotating plate is formed at the center of the partition wall, and the case And the cover member is preferably assembled by an assembly member of a separate configuration to fit the assembly groove formed in the front end of the case and the assembly groove of the cover member.

In addition, the assembly member is a U-shaped fitting piece of the upper opening, the center terminal and the fixed terminal is preferably installed through each of the fixing grooves in the case.

The rotating plate preferably has a central projection at the bottom center and a projection body and a slide hole at predetermined intervals on its left and right sides. The pair of elastic members are leaf springs, and the leaf springs have both ends. It is preferable that the movable hole and the movable groove portion are formed in the pair, and the pair of movable members are formed with a convex end portion of which the central portion is raised, and at one end, the engaging projection for engaging with the movable groove portion of the leaf spring is provided. It is preferable that the end is a movable terminal formed by forming contact holes provided with movable contacts, respectively, and the slider and the rotating plate may be assembled in such a manner that the slide pins of the slider are fluidly connected to the slide holes of the rotating plate.

In addition, the cover member is provided with a plurality of assembly pieces for engaging the assembly protrusion of the case on the left and right sides thereof, it is preferable that the other assembly groove corresponding to the assembly groove of the case is formed at the front end.

Therefore, the power switch of the present invention according to the above configuration, due to the adoption of the leaf spring and the movable member installed in the lower portion of the rotating plate, while the structure is simple, while the movable member is rotated at a predetermined angle in accordance with the rotation of the rotating plate is supplied with power And the blocking is made to perform a certain operation, not only malfunction is prevented, but also the number of parts is minimized, there is a variety of effects, such as easy to assemble and significantly reduce the manufacturing cost.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 3 to 5.

Parts similar to those of the conventional description will be described with the same reference numerals to avoid the complexity of the description.

3 is an exploded perspective view showing a power switch of the present invention. In this figure, the inside of the case 10 is partitioned into two parts, a first space portion 10A and a second space portion 10B for assembling operation parts arranged in a mutually symmetrical structure to be described later. In the center of the partition wall 10C partitioning the first space 10A and the second space 10B, a rotation guide groove 11 for smoothly supporting and rotating the rotating plate 70 to be described later is formed. . Reference numeral 100 is inserted into the assembly groove 15 formed at the front end of the case 10 and the assembly groove 65 of the cover 60 in order to tighten both of them in the state in which the case 10 and the cover 60 are assembled. It is a fitting piece as an assembly member to fit.

Since the center terminal and the fixed terminal of the present invention are completely different in shape and structure from the conventional ones, the description will be made with a separate reference numeral. That is, reference numeral 90 denotes a central terminal and 92 denotes a fixed terminal. The central terminal 90 and the fixed terminal 92 have a predetermined distance between the fixing grooves 91 and 93 of the first space portion 10A and the second space portion 10B in the case 10. In each case, a pair of central terminal 90 and fixed terminal 92 are provided symmetrically with each other.

4 is a bottom perspective view showing the rotating plate 70 of the present invention. The rotating plate 70 forms a central projection 72 at the bottom center and a projection 73 and a slide hole 74 at predetermined intervals on the left and right sides thereof. The central projection 72 is inserted into the rotation guide groove 11 of the case 10 to enable the rotation operation of the rotating plate 70.

A pair of leaf springs 86 as elastic members are installed below the rotating plate 70, and both ends of the leaf springs 86 are provided with movable holes 86a and movable grooves 86b. A pair of movable terminals 80 as a movable member is provided below the leaf spring 86. The central portion of the movable terminal 80 is a raised convex end 82, one end of the engaging projection 84 is engaged with the movable groove 86b, the other end is provided with a movable contact 85 Contact holes 85a are formed respectively. These rotating plate 70, the leaf spring 86 and the movable terminal 80 is installed so as to span the center terminal 90 and elastically contact the contact 92a of the fixed terminal 92, the fixed terminal 92 ) Is selectively contacted / non-contacted.

The slider 40 has a heart cam formed therein as in the related art, but is deviated to one side from the longitudinal center of the slider 40 on the opposite side of the front end of the knob attaching rod 48. A furnace movable piece 47 is formed, and a slide pin 49 fitted into the slide hole 74 of the rotating plate 70 is formed at the bottom end of the movable piece 47.

The cover 60, as in the prior art is located at the top and covers the entire power switch parts, the upper surface of the bottom is formed with a rotary guide groove 61 for supporting the central projection 72 of the rotating plate 70 And left and right sides are formed with an assembly piece 63 to mate with the assembly protrusion 13 of the case 10 to assemble the case 10 and the cover 60, and the assembly groove (at the front end of the cover 60). An assembling groove 65 corresponding to 15 is formed.

In addition, since the structure of the heart cam 41, the spring 30, etc. of the said slider 40 is the same as that of the prior art, it abbreviate | omits below.

The power switch of the present invention configured as described above operates as shown in FIGS. 5 and 6. Figure 5 is for explaining the operating state when the (on) of the present invention, (a) is a cross-sectional view, (b) is a cross-sectional view, Figure 6 illustrates the operating state at the time of (off) of the present invention. (A) is a cross-sectional view, (b) is a cross-sectional view.

First, referring to FIG. 5, this shows an on state, when an operator presses a knob (not shown) of the switch, the knob attaching rod 48 is pressed, and thus the movable piece 47 of the slider 40. The rotary plate 70 is pushed to one side. That is, the rotary plate 70 is rotated to one side by the switch on operation of the operator in the off state that the leaf spring 86 does not press the movable terminal 80. Specifically, the slide hole 74 of the rotating plate 70 is coupled to the slide pin 49 of the slider 40, the central projection 72 is the rotation guide groove 11 and the case 10 Since they are fitted in the rotation guide groove 61 of the cover 60, the spring 30 and the rotating plate 70 rotates around the central projection (72).

When the protrusion 73 resists the elastic force of the leaf spring 86 by the rotation of the rotating plate 70, the leaf spring 86 is pressed on one side of the movable terminal 80, that is, on the movable contact 85 side. The other side of the leaf spring 86, that is, the engaging projection 84 side, is lifted and the movable contact 85 side is downward, and the contact point between the movable contact 85 and the fixed terminal 92 is centered about the central terminal 90. 92a is brought into a contact state and becomes an energized state (switched on state) (see FIGS. 5A and 5B).

As described above, the on / off control of the power switch is enabled by the repeated pressing operation of the switch.

According to the power switch of the present invention as described above, due to the adoption of the leaf spring and the movable member installed on the lower portion of the rotating plate, while the structure is simple, the power supply is supplied while the movable terminal is rotated at a predetermined angle in accordance with the rotation of the rotating plate Blocking is performed to ensure a reliable operation, not only malfunction is prevented, but also the number of parts is minimized, there is a variety of effects such as easy to assemble and significantly reduce the manufacturing cost.

Claims (11)

A case having a heart cam operating member and a case having a plurality of terminals for operating on / off by contacting / non-contacting by interlocking with the operating member for at least a switching operation, and a cover member assembled on the upper portion of the case; In the power switch configured, The case is partitioned into a first space portion and a second space portion for receiving and assembling the operation parts, the inside of which are arranged symmetrically to each other, the outside of the assembly protrusion and assembly groove for assembling with the cover member Is formed, A pair of central terminals and fixed terminals provided symmetrically with each other at predetermined intervals in the first and second spaces; The actuating member includes a slider including a movable piece formed at an inner side thereof outwardly from a longitudinal center of the slider and a slide pin formed at a bottom end of the movable piece, and the slider for rotating in association with a linear movement of the slider. A pair of rotating plates arranged to be connected to the pair, and a pair of elastic members installed below the rotating plate, A pair of movable members provided below the elastic member, The cover member has a rotation guide groove for supporting the center projection of the rotating plate at the bottom of the upper surface, an assembly piece for engaging with the assembly protrusion of the case on the left and right sides thereof, and an assembly corresponding to the assembly groove of the case at the front end thereof. A power switch, characterized in that the groove is formed. The said 1st space part and the 2nd space part have a partition wall for partitioning these, The rotation guide groove for smoothly supporting and rotating a rotating plate is formed in the center of this partition wall, It is characterized by the above-mentioned. Power switch. The power switch of claim 1, wherein the case and the cover member are assembled by an assembly member of a separate configuration fitting the assembly groove formed at the front end of the case and the assembly groove of the cover member. 4. The power switch according to claim 3, wherein the assembly member is a U-shaped fitting piece with an open upper side. The power switch of claim 1, wherein the center terminal and the fixed terminal are installed through respective fixing grooves in the case. 2. The power switch according to claim 1, wherein the rotating plate forms a projection at the center of the bottom and a slide hole at predetermined intervals on the left and right sides thereof. The power switch of claim 1, wherein the pair of elastic members is a leaf spring. 8. The power switch according to claim 7, wherein the leaf spring has movable holes and movable grooves formed at both ends thereof. The movable member of claim 1, wherein the pair of movable members is formed of a convex end portion of which the central portion is raised, and at one end of the pair of movable projections is engaged with the movable groove of the leaf spring, and the other end thereof is provided with a movable contact point. A power switch, characterized in that the movable terminal formed by the contact hole respectively. The power switch according to claim 1, wherein the slider and the rotating plate are assembled in a configuration in which the slide pin of the slider is movably connected to the slide hole of the rotating plate. 2. The cover member according to claim 1, wherein the cover member has a plurality of assembling pieces for engaging the assembling protrusions of the case on left and right sides thereof, and other assembling grooves corresponding to the assembling grooves of the case are formed at the front end thereof. Power switch, characterized in that.