KR100530195B1 - Movable contact assembly and switch device using the assembly - Google Patents

Abstract

(Problem) Provided are a movable contact assembly having a low production cost of a movable contact assembly, good operability of an elastic body, and less unevenness in its mounting position, and a switch device using the same.

(Solution means) In the movable contact assembly of the present invention, the pedestal portion 5 of the elastic body 1 is supported by the outer wall 12 and the upper plate 13 of the frame body 11 so that the elastic body 1 and the frame body ( Since 11) is integrally combined, manufacturing facilities can be used in common, so that the manufacturing cost can be lowered compared to the conventional one, and it is provided for each movable contact assembly, so that the installation area can be made small and the size can be reduced. The base part 5 is supported by the outer wall 12 and the upper plate 13, which can hold | maintain the elastic body 1 reliably, a reliable inversion operation can be obtained, and a thing with good operability is obtained.

Description

Movable contact assembly and switch device using the same {MOVABLE CONTACT ASSEMBLY AND SWITCH DEVICE USING THE ASSEMBLY}

The present invention relates to a movable contact assembly suitable for use in various electrical appliances and a switch device using the same.

12 is an exploded perspective view of a conventional movable contact assembly and a switch device using the same, and FIG. 13 is a main part of a conventional movable contact assembly and a switch device using the same. It is an enlarged cross section.

Next, the structure of the conventional movable contact assembly and the switch device using the same will be explained based on FIGS. 12 and 13. The movable contact assembly K2 is formed of one elastic sheet 51 made of rubber.

And this elastic sheet 51 is a plate-shaped sheet part 52, the some dome part 53 which protruded from the upper surface of the sheet part 52 in the state connected to the sheet part 52, and the sheet part It consists of the outer peripheral part 54 which protruded downward from the outer peripheral part of 52.

Moreover, the dome part 53 has the cavity part 53a inside, the skirt part 53b which can perform reverse operation, the press part 53c formed in the front part of this skirt part 53b, and the cavity part 53a. ), And the dome portion 53 is in a state where the end portion of the skirt portion 53b is connected to the sheet portion 52.

The printed circuit board 55 has a some fixed contact 56 which consists of a pair of contact part by the conducting wire pattern, and this printed board 55 is provided in the lower surface of the elastic sheet 51 which is movable contact assembly K2. In the arrange | positioned state, the side end surface of the printed circuit board 55 is enclosed by the outer peripheral part 54, and the printed circuit board 55 and the movable contact assembly K2 are combined, and the switch apparatus is comprised.

And when the printed circuit board 55 and the movable contact assembly K2 are combined, the movable contact 53d and the fixed contact 56 will be in the state which opposes, and when pressurizing the press part 53c in this state, a skirt part 53b inverts, the movable contact 53d contacts the fixed contact 56, and the contact turns ON.

Moreover, when the pressurizing part 53c is canceled | pressurized, the skirt part 53b will reverse | vertise by itself elasticity, and will return to an original state, and the movable contact 53d will be separated from the fixed contact 56, and will be in an OFF state.

In this way, the switch device is operated.

However, the movable contact assembly K2 made of the elastic sheet 51 is required to be different in size, shape, number of dome portions 53, and arrangement of the sheet portions 52 in order to correspond to various electric devices. It is necessary to prepare various kinds of movable contact assemblies K2.

As a result, manufacturing equipment, such as a molding die according to the kind of movable contact assembly K2, is needed, and manufacturing cost rises and it becomes expensive.

Moreover, in a switch apparatus, a nonuniformity arises in the sheet | seat part 52 of the movable contact assembly K2.

That is, this sheet portion 52 has a large manufacturing nonuniformity and expansion and contraction due to temperature change under the environment, and thus nonuniformity occurred at the position of the dome portion 53 with respect to the set panel.

In the conventional movable contact assembly, since the size, shape, number of the dome parts 53, and arrangement | positioning of the sheet | seat part 52 need to prepare several things, there exists a problem that manufacturing cost rises and it becomes expensive.

In addition, in the switch device, in particular, the sheet portion 52 has a large manufacturing unevenness and expansion and contraction due to temperature change in the environment, and thus a nonuniformity occurs at the position of the dome portion 53 with respect to the panel of the set, resulting in a decrease in product value. There is a problem.

Moreover, since the edge part of the dome part 53 is in the state connected to the sheet | seat part 52, its support is weak, and therefore, the inversion operation of the dome part 53 is large, and it becomes uneven and the operability of the dome part 53 deteriorates. have.

Therefore, an object of the present invention is to provide a movable contact assembly having a low manufacturing cost of a movable contact assembly, good operability of an elastic body, and a small nonuniformity of its mounting position, and a switch device using the same.

Means to solve the problem

A first solution for solving the above problems includes an elastic body made of a reversible insulating material having movable contacts formed therein, and a frame body made of a metal material attached to the elastic body, wherein the elastic body has a cavity inside. A skirt portion to have, a pressing portion formed at the top of the skirt portion, a pedestal portion formed at the end of the skirt portion, and the movable contact disposed in the cavity portion, and the frame body includes: an outer wall extending upward; And an upper plate bent from an end of the outer wall, a concave portion and a convex portion formed at a lower end portion of the outer wall, and the pedestal portion is disposed in the space portion formed by the outer wall and the upper plate, and an outer surface of the pedestal portion is The elastic body is supported by being in contact with an inner surface and being supported by an upper surface of the pedestal portion in contact with an inner surface of the upper plate. It was set to the movable contact assembly in combination with the frame body integrally.

Moreover, as said 2nd solution means, the said base part formed the annular shape, the said frame body was formed with the sheet metal plate, and the outer wall was made the movable contact assembly which formed the cylindrical shape.

Moreover, as a 3rd solution means, it was set as the movable contact assembly in which the said outer wall was formed in the cylindrical shape by drawing process.

Further, as a fourth solution means, the frame body has an inner wall bent from the upper plate in a state facing the outer wall, and the inner wall abuts the inner surface of the pedestal portion so that the pedestal portion is formed by the inner and outer walls. It was set as the movable contact assembly clamped.

Moreover, as a 5th solution means, it was set as the movable contact assembly which the said outer wall of the said frame body formed the polygonal cylindrical shape.

In addition, as a sixth solution means, a movable contact assembly having a clearance formed of a hole or a notch was formed in a state of being located at a corner portion of the outer wall forming a polygonal cylindrical shape.

Moreover, as a 7th solution means, it was set as the movable contact assembly in which the protrusion piece bent outwardly from the lower end part of the said outer wall was formed.

Further, as an eighth solution, the protruding piece is formed by bending outwardly from the concave portion, and the protruding piece is a movable contact assembly located on the upper side with a gap from the lower end of the convex portion.

Further, as a ninth solution, the movable contact assembly includes an insulating base having a movable contact assembly and a fixed contact and a mounting metal conductor, wherein the convex portion of the frame body is insulated from the fixed base with the movable contact facing the fixed contact. And the outer wall of the frame body was soldered to the metal conductor.

Further, as a tenth solution, a switch device was formed in which the insulating base was formed of a printed board and the fixed contact and the metal conductor were formed in a conductive pattern.

In addition, as an eleventh solution, the recessed portion of the frame body is disposed in a state facing the metal conductor, and the frame body is soldered to the metal conductor at the position of the recessed portion.

In addition, as a twelfth solution, the protruding piece was a switch device soldered onto the metal conductor.

Referring to the drawings of the movable contact assembly of the present invention and a switch device using the same, FIG. 1 is a plan view showing a first embodiment of the movable contact assembly of the present invention and a switch device using the same, and FIG. 2 is a line 2-2 of FIG. 3 is an enlarged cross-sectional view of the main portion in the first embodiment of the movable contact assembly and the switch device using the same according to the present invention.

4 is related to the first embodiment of the movable contact assembly of the present invention and the switch device using the same, and is a bottom view of the movable contact assembly, and FIG. 5 is the first of the movable contact assembly of the present invention and the switch device using the same. Embodiment relates to a plan view of an insulating gas, and FIG. 6 relates to a first embodiment of a movable contact assembly of the present invention and a switch device using the same, to a plan view of a frame body, and FIG. 7 illustrates a movable contact assembly of the present invention. And a first embodiment of a switch device using the same, which is a front view of a frame body.

8 shows a second embodiment of the movable contact assembly of the present invention and a switch device using the same, which is a plan view of the frame body, and FIG. 9 is a second embodiment of the movable contact assembly of the present invention and a switch device using the same. It relates to a front view of the frame body, Figure 10 relates to a movable contact assembly of the present invention and a switch device using the same, is a plan view showing an embodiment of the arrangement of the movable contact assembly, Figure 11 is a movable contact of the present invention An assembly and a switch device using the same, which is a plan view showing another embodiment of the arrangement of the movable contact assembly.

Next, the structure of the 1st Example of the movable contact assembly of this invention and the switch apparatus using the same is demonstrated based on FIGS. 1-7, The movable contact assembly K1 is comprised of the elastic body 1 and the frame body 11. As shown in FIG. Consists of.

The elastic body 1 is formed of an insulating material such as rubber or elastomer, has a dome shape, has a cavity part 2 therein, and has a skirt part 3 capable of inverting operation, and the skirt part 3. It consists of the press part 4 formed in the government part, the ring-shaped base part 5 formed in the edge part of the skirt part 3, and the movable contact 6 formed in the government part in the cavity part 2. As shown in FIG.

Moreover, the lower surface of the pedestal part 5 is connected with the cavity part 2, and the channel | path 5a which consists of recessed parts is formed so that the air in the cavity part 2 may go in and out.

In addition, the frame body 11 is formed by drawing and processing a solderable metal plate, and has an annular outer wall 12 that has a polygonal cylindrical shape, and an upper plate bent inward from an upper end of the outer wall 12 ( 13) and the cylindrical inner wall 14 bent downward from the top plate 13 in a state facing the outer wall 12, the convex portion 15 formed at the lower end of the outer wall 12, and the outer wall 12 A concave portion 16 formed at a lower end portion of the concave portion 15 and adjacent to the convex portion 15, a protruding piece 17 bent to protrude outward from the position of the concave portion 16, and a polygonal cylindrical outer wall. It has the clearance part 18 which consists of the hole formed in the state located in the edge part of 12.

The convex part 15 is formed in multiple numbers so that the protrusion amount from the lower end part of the outer wall 12 may become the same, and in the Example shown in FIG. 4, three point support is enabled by the three convex part 15, have.

And the ceiling part of the recessed part 16 and the lower surface of the protrusion piece 17 are located in the upper side with the clearance gap from the lower end part of the convex part 15, and the clearance part 18 is located in each corner part. It is formed in the state, and the clearance part 18 raises the precision of drawing process by leaving a clearance in the thickness part at the time of drawing process.

In this embodiment, although the frame body 11 which consists of one metal plate was used, you may use several frame body 11. As shown in FIG.

In the frame body 11 having such a configuration, the movable contact assembly K1 is formed by combining the pressing section 4 side of the elastic body 1 from the lower side of the frame body 11.

And when the elastic body 1 and the frame body 11 are combined and the movable contact assembly K1 was formed, the outer surface of the base part 5 abuts on the inner surface of the outer wall 12, and also the upper board 13 The upper surface of the pedestal portion 5 abuts on the inner surface of the pedestal, and the inner surface of the pedestal portion 5 abuts on the inner wall 14, and the pedestal portion is formed by the outer wall 12, the upper plate 13, and the inner wall 14. The elastic body 1 and the frame body 11 are integrated as the state where 5 is inserted and supported.

That is, the elastic body 1 and the frame body 11 are integrated using the elasticity of the pedestal part 5 of the elastic body 1.

In this embodiment, the outer wall 14 has been described as being formed by drawing, but may be formed by bending.

In particular, as shown in FIG. 5, the insulating substrate 21 made of a printed board includes a plurality of fixed contacts 22 each formed of a pair of conductive patterns connected to the leader line, and a conductive pattern connected to the grand pattern. A plurality of metal conductors 23 are formed on the same surface.

In this embodiment, the insulating base 21 is described as being formed of a printed board, but the fixed base and the metal conductor may be attached to the insulating base made of a molded article by embedding or caulking.

And on the insulating base 21, the convex part 15 of the frame body 11 is made to contact on the insulating base 21, and the lead line of the fixed contact 22 is arrange | positioned at the recessed part 16, The movable contact assembly K1 is placed out of the frame 11 in a state where interference with the frame 11 is avoided.

In this state, the frame body 11 is soldered to the metal conductor 23, and one or more movable contact assemblies K1 are mounted at predetermined positions of the insulating base 21 to constitute a switch device. .

In addition, when the movable contact assembly K1 is mounted, the movable contact 6 is in a state facing the fixed contact 22, and the projection piece 17 provides a gap between the metal conductor 23. In this way, the frame 11 is grounded by soldering to the metal conductor 23.

This soldering is carried out by stacking the cream solder on the metal conductor 23 and transporting the cream solder to the reflow furnace while bringing the cream solder into contact with the bottom surface of the protruding piece 17 to melt and solidify the cream solder. In addition to the side surface of the piece 17, the fillet can be formed on the lower surface of the protruding piece 17 by the gap with the metal conductor 23 described above, and the frame body 11 can be firmly mounted.

In addition, this protruding piece 17 plays a role of positioning the movable contact assembly K1 with respect to the insulating base 21.

That is, the optical positioning device monitors the position of the protruding piece 17 at the time of assembly, thereby performing accurate positioning of the movable contact assembly K1.

In this embodiment, the protruding pieces 17 having a gap between the metal conductors 23 are soldered to the metal conductors 23, but the recesses 16 of the frame 11 are placed on the metal conductors 23. In this case, a gap may be provided between the ceiling of the concave portion 16 and the metal conductor 23, and the frame 11 may be soldered to the metal conductor 23 at the position of the concave portion 16.

Instead of fixing the frame 11 and the metal conductor 23 by soldering, an opening is formed in the protruding piece 17 and the metal conductor 23 is pin-shaped so that both of them are fixed together. You may also

8 and 9 show a second embodiment of the movable contact assembly and the switch device using the same, and the second embodiment will be described. In the frame 11, the edge of the polygonal cylindrical outer wall 12 is illustrated. Since the marginal part 18 which consists of a notch part was formed in the position of a part, and the other structure is the same as that of the said 1st Example, the same number is attached | subjected to the same component, and the description is abbreviate | omitted.

And when the switch device comprised in this way presses the press part 4, the skirt part 3 will reverse operation, the movable contact 6 will contact a pair of fixed contact 22, and a contact will be in an ON state. .

Moreover, when the pressurization of the press part 4 is canceled, the skirt part 3 will reverse | revert to the elasticity of self, and will return to an original state, and the movable contact 6 will be separated from the fixed contact 22, and will be in an OFF state. In this way, the switch device is operated.

And the movable contact assembly K1 comprised in this way arrange | positions the movable contact assembly K1 for every predetermined | prescribed position on the insulating base 21, even if the number of switches and its arrangement | positioning are mutually different in various electric machines. You can respond by doing so.

As a result, the movable contact assembly K1 can manufacture a common manufacturing facility, and manufacturing cost becomes low.

In addition, in the switch device, since the movable contact assembly K1 is separately mounted, the mounting position is less uneven, and the position of the movable contact assembly K1 with respect to the panel of the set can be corrected.

10 shows an embodiment of the arrangement of the movable contact assembly K1 of the present invention, and the embodiment shown in this FIG. 10 shows the nine octagonal movable contact assembly K1 formed on the insulating substrate 21. ) Are arranged in an aligned state, and the protruding pieces 17 of the frame body 11 between the movable contact assemblies K1 positioned next to each other are arranged so as to face each other.

11 shows another embodiment of the arrangement of the movable contact assembly K1 of the present invention, and another embodiment shown in this FIG. 11 shows nine octagonal movable contact assemblies K1 formed on the insulating substrate 21. ) Are arranged in an aligned state, and at the same time, the protruding pieces 17 of the frame body 11 between the movable contact assemblies K1 positioned obliquely face each other.

In this way, when the protruding pieces 17 of the frame bodies 11 between the movable contact assemblies K1 positioned at an angle to each other are arranged to face each other, the distance between the adjacent movable contact assemblies K1 can be reduced. Can obtain a small switch device.

The movable contact assembly of the present invention includes an elastic body made of a reversible insulating material having a movable contact formed therein, a frame body made of a metal material attached to the elastic body, and the elastic body includes a skirt portion having a cavity therein; The pressurization portion formed in the skirt portion, the pedestal portion formed at the end of the skirt portion, and the movable contact disposed in the cavity portion, the frame body is bent from an end of the outer wall and an outer wall extending upward. The upper plate and the concave portion and the convex portion formed at the lower end of the outer wall, the base portion is disposed in the space portion formed by the outer wall and the upper plate, the outer surface of the pedestal is supported by contacting the inner surface of the outer wall, and the upper surface of the pedestal portion is the inner surface of the upper plate By being abutted against, the elastic body and the frame body were set together integrally.

By such a structure, manufacturing facilities can be common and it can be made cheaper compared with the former.

Moreover, since it is provided for every movable contact assembly, the installation area can be made small and it can be miniaturized.

In addition, since the pedestal portion is supported by the outer wall and the upper plate, the elastic body can be reliably maintained, a reliable inversion operation can be obtained, and the operability is good, and the elasticity can be suppressed even if the elastic body is stretched.

In addition, by forming the concave portion and the convex portion at the lower end portion of the outer wall, it is possible to form a conductive pattern such as a lead line at the lower portion of the concave portion when installed, thereby increasing the wiring density.

In addition, since the pedestal forms an annular shape and the frame body is formed of a single metal plate and the outer wall forms a tubular shape, the assembling is simple and the productivity is good.

In addition, since the outer wall is formed into a tubular shape by drawing, the productivity is good, and the outer surface of the pedestal portion can be supported more reliably, and a reliable reverse operation can be obtained.

In addition, the frame body has an inner wall bent from the top plate in a state facing the outer wall, and since the inner wall abuts on the inner surface of the pedestal part and supports the pedestal part by the outer wall, the support of the pedestal part by the frame body is supported. Is further assured, and a reliable inversion operation can be obtained.

In addition, since the outer wall of the frame forms a polygonal cylindrical shape, the shape is simple, the productivity is good, and a low cost one can be obtained.

Moreover, since the clearance part which consists of a hole or a notch part is formed in the state located in the edge part of the polygonal cylindrical outer wall, the precision of drawing process can be improved and a highly accurate frame body is obtained.

Further, since the protruding piece bent outward from the lower end of the outer wall is formed, the protruding piece can play a role of positioning the movable contact assembly with respect to the insulating gas, so that the accurate movable contact assembly can be mounted.

Further, since the protruding pieces are bent outwardly from the concave portion, the protruding pieces are positioned upward from the lower end of the convex portion with the gap therebetween, so that when installed, the protruding pieces oppose the metal conductor with the gap, Since the lower surface of the protruding piece can be soldered, the soldering of the frame body is possible.

Further, the switch device of the present invention includes an insulating base having a movable contact assembly and a fixed contact and a mounting metal conductor, and the convex portion of the frame body is placed on the insulating base with the movable contact facing the fixed contact. Since the outer wall of the frame body is soldered to the metal conductor, it is possible to provide a switch device that is inexpensive and can be miniaturized and that the inversion operation of the elastic body is sure.

Moreover, when provided, conductive patterns, such as a lead wire, can be formed in the lower part of a recessed part, and wiring density can be improved.

In addition, since the insulating substrate is formed of a printed board and the fixed contact and the metal conductor are formed of a conductive pattern, it is possible to obtain a low cost and good productivity.

In addition, since the recessed portion of the frame body is disposed in a state facing the metal conductor, and the frame body is soldered to the metal conductor at the position of the recessed portion, the recessed portion can be positioned on the metal conductor with a gap so that the frame body is a metal conductor. Can be soldered on surely.

In addition, since the protruding pieces are soldered onto the metal conductor, the solder can be soldered to the metal conductor in a wide range, and the soldering of the frame body is possible.

1 is a plan view showing a first embodiment of a movable contact assembly and a switch device using the same according to the present invention.

FIG. 2 is a sectional view of the main parts taken along the line 2-2 of FIG. 1. FIG.

3 is an enlarged cross-sectional view of the main portion of the first embodiment of the movable contact assembly and the switch device using the same according to the present invention.

4 is a bottom view of the movable contact assembly as related to the first embodiment of the movable contact assembly and the switch device using the same according to the present invention.

Fig. 5 relates to a first embodiment of a movable contact assembly of the present invention and a switch device using the same, which is a plan view of an insulating substrate.

Fig. 6 relates to a first embodiment of a movable contact assembly of the present invention and a switch device using the same, which is a plan view of a frame body.

Fig. 7 relates to a first embodiment of a movable contact assembly of the present invention and a switch device using the same, and is a front view of the frame body.

Fig. 8 relates to a second embodiment of a movable contact assembly of the present invention and a switch device using the same, which is a plan view of a frame body.

Fig. 9 relates to a second embodiment of a movable contact assembly of the present invention and a switch device using the same, and is a front view of the frame body.

10 is a plan view showing an embodiment of the arrangement of the movable contact assembly, which relates to the movable contact assembly and the switch device using the same.

Fig. 11 is a plan view showing another embodiment of the arrangement of the movable contact assembly, which relates to the movable contact assembly and the switch device using the same according to the present invention.

12 is an exploded perspective view of a conventional movable contact assembly and a switch device using the same.

13 is an enlarged sectional view of a main part of a conventional movable contact assembly and a switch device using the same.

(Explanation of the sign)

K1: Movable Contact Assembly

1: elastic body

2: common part

3: skirt

4 pressurization

5: base part (base part)

5a: passage

6: movable contact

11: frame

12: outer wall

13: top plate

14: inner wall

15: convex

16: concave

17: protrusion

21: insulating gas

22: fixed contact

23: metal conductor

Claims (12)

An elastic body made of a reversible insulating material having a movable contact formed therein, and a frame body made of a metal material attached to the elastic body, wherein the elastic body includes a skirt portion having a cavity portion therein and a pressing portion formed at the top of the skirt portion. A frame portion, a pedestal portion formed at the end of the skirt portion, the movable contact disposed in the cavity portion, the frame body includes: an outer wall extending upward, an upper plate bent from an end of the outer wall; The base portion has a concave portion and a convex portion formed at the lower end of the outer wall, and the pedestal portion is disposed in the space portion formed by the outer wall and the upper plate, and the outer surface of the pedestal portion is supported against the inner surface of the outer wall, and the upper surface of the pedestal portion The elastic body and the frame body are integrally combined by being brought into contact with the inner surface of the upper plate. The movable contact assembly to. The movable contact assembly according to claim 1, wherein the pedestal forms an annular shape, and at the same time, the frame is formed of a single metal plate, and the outer wall has a tubular shape. The movable contact assembly according to claim 2, wherein the outer wall is formed into a tubular shape by drawing. 3. The frame body according to claim 2, wherein the frame body has an inner wall that is bent from the top plate in a state facing the outer wall, and the inner wall abuts against an inner surface of the pedestal portion to hold the pedestal portion by the inner and outer walls. Movable contact assembly, characterized in that. The movable contact assembly according to claim 3, wherein the outer wall of the frame has a polygonal tubular shape. 6. The movable contact assembly as set forth in claim 5, wherein a clearance formed of a hole or a notch is formed in a state of being located at a corner portion of the outer wall forming a polygonal tubular shape. The movable contact assembly according to claim 1, wherein a protruding piece bent outward from the lower end of the outer wall is formed. The movable contact assembly according to claim 7, wherein the protruding piece is formed by bending outwardly from the concave portion, and the protruding piece is positioned upwardly with a gap from a lower end of the convex portion. An insulating base having a movable contact assembly according to claim 1 and a fixed contact and a mounting metal conductor, wherein said convex portion of said frame body is insulated from said movable contact with said fixed contact. It is placed on a base, and said outer wall of the said frame body is soldered to the said metal conductor. 10. The switch device according to claim 9, wherein the insulating base is formed of a printed board and the fixed contact and the metal conductor are formed of a conductive pattern. 10. The switch device according to claim 9, wherein the recessed portion of the frame body is disposed facing the metal conductor, and the frame body is soldered to the metal conductor at the position of the recessed portion. The switch device according to claim 9, wherein the protruding pieces are soldered onto the metal conductor.