JPH11185562A - Manufacture of dip switch and mold thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To drop dust on a rectangular frame of a base stay, and hold a superior contact effect between a contact and a contactor even if external dust enters by curving both ends of the contactor into contact with a bottom of the contact of a top cover. SOLUTION: A terminal array having a metal piece punched and pressed is formed integrally with a plastic, and a unfinished product of a top cover 21 is made. A contactor 221 is press-processed, both ends thereof is molded in an upward curved shape, a slider 22 is engaged with its engagement hole, and an unfinished product of the slider 22 is made. A base stay 23 is molded in a rectangular frame shape. Unfinished products of the top cover 21, slider 22, and base stay 23 are combined by machine, and a welding rim of the top cover 21 and a recessed groove of the base stay 23 are welded, and a bonding face 215 is formed. A connection pin 213 extended to the outside of the top cover 21 is curved. When a pinch part 222 is moved to the left, and contact between the right contact 221 and the right contact is released, a DIP switch 201 is interrupted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a program switch, and more particularly, to a method of manufacturing a DIP switch (Dual Inline Package Type Switch) which has good contact effect and is not deformed, and a product thereof.

[0002]

2. Description of the Related Art DIP switches are indispensable members in the information industry. They are directly mounted on a printed circuit board and used to set various functions. Because it is done in
DIP switches must be extremely reliable to prevent irreparable losses due to erroneous signal outputs, since opening and closing an electrical circuit can produce completely different results for operations. Must. However, the structure of the conventional DIP switch has not reached the ideal yet, and as shown in the examples of FIGS. 7 and 8, the DIP switch 10 includes a base 11, a slider 12, and an upper lid 13, and among them, The base 11 presents a rectangular frame 111,
A plurality of sets of connecting pins 112 of connectors 110 and 110a, which are fixed in a straight line on both sides thereof, extend in parallel outward, and an upward knob 121 is protruded from the upper end of the slider 12, A locking block 122 is provided at the bottom of the slider 12 to protrude, and the locking block 122 is formed by bending a leaf spring.
4 and fixed. The upper lid 13 has an opening 1 at an upper end portion thereof at a position aligned with the connecting pin 112.
31 is opened, and the knob 121 of the slider 12 is extended from the inside of each opening 131 to the outside. Next, as shown in FIG. 8, for example, the length of the connector 110 in the rectangular frame 111 on the right side in the figure is made longer than the length of the connector 110a in the rectangular frame 111 on the left side, and the slider 12 is gripped. When the contactor 123 is moved to the right by pushing the contactor 123 to the right in the figure, the contactor 1
The right side of the contact 23 comes into contact with the right connector 110, the left side of the contactor 123 stops contacting the left connector 110a, and the DIP switch 10 turns off (OFF). Then, when the contactor 123 is pushed to the left and the left and right sides of the contactor 123 come into contact with the left and right connectors 110a and 110, respectively, the DIP switch 10 exhibits a conductive (ON) state. Thus, the above D
When the IP switch 10 is used, the function of switching between 0 and 1 can be easily and easily exhibited, but there is a problem in practical use that the following improvement is still awaited.

[0003]

[Problems to be Solved by the Invention] As shown in FIGS. 7 and 8, an opening 131 is provided in the upper lid 13 so that the slider 12 can be moved and switched.
31, the connectors 110 and 110 a are positioned on the inner bottom surface of the base 11, and the contactor 123 is located above the connector 110, and the contactor 123 is connected to the connector pin 110. , 1
The opening and closing of the DIP switch 10 is controlled by sliding on the 10a. When dust enters the inside of the DIP switch 10 from the opening 131, the dust accumulates on the upper surfaces of the connectors 110 and 110a and the contactor 123, and thus the dust is accumulated. Connector 110, 110a and contactor 12
No. 3 is likely to be in poor contact.

[0004] 2. As shown, the DIP switch 10
Since both are mounted on the top of the printed circuit board, they must be cleaned in liquid detergent after welding to the printed circuit board to remove weld spatter, slugs and other residues. However, in this cleaning process, the liquid detergent may enter the inside of the DIP switch 10 from the upper lid 13 or a joint portion between the upper lid 13 and the base 11. It accumulates at the bottom and penetrates between the contact surfaces between the connectors 110 and 110a and the contactor 123 to wet them, and sometimes stays with a small amount of residue attached thereto, and also causes the contactors 123 and the connectors 110 and 1 to stay together.
The liquid detergent that has penetrated between the contact surfaces with 10a volatilizes, and the remaining nonvolatile components tend to cause poor contact.

[0005] 3. As shown in the figure, the slider 12
When the sliding block 12 is slid, the sliding block 12 integrally interlocks the contactor 123 in a horizontal motion manner, and
The connection or disconnection is performed depending on the presence or absence of contact between the connector 3 and the connectors 110 and 110a. However, if the operation on the slider 123 is improper (when a large downward pressing force is applied), the contactor 123 is permanently deformed. , The DIP switch 10 loses its function and cannot be used.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the conventional DIP switch, and has as its object to provide a method of manufacturing a DIP switch which has an excellent contact effect and is not easily deformed, and a product thereof. .

[0007]

In order to solve the above-mentioned problems, a manufacturing method of the present invention is a method of punching and pressing a terminal arrangement of an upper lid in a state where the terminal arrangement is connected to a business trip and electroplating the terminal arrangement. And, the terminal arrangement is put into a mold, embedded and molded integrally with the upper lid by plastic, and further unnecessary portions of the terminal arrangement are removed to produce a semi-finished product of the upper lid, and an upper end surface of the semi-finished product of the upper lid Step 1 of protruding the connection pins of the connector outward on the close both sides, pressing the contactor of the slider, electroplating the contactor, and bending both ends of the contactor upward and then forming the contactor. Step 2 of embedding the contactor with plastic so as to integrally engage the slider and its locking hole to produce a slider semi-finished product; Step 3 is integrally molded goods,
The upper semi-finished product, the semi-finished slider, and the semi-finished base are automatically combined by a machine, the semi-finished upper lid and the base are welded, and the connecting pin extending out of the upper lid is bent to obtain a quality. And step 4 for automatically packaging the accepted product after the inspection.

The product of the present invention is formed by a base, an upper lid, and a slider, and has a plurality of sets of connecting pins that protrude outwardly from the connector and bend on both sides of the upper lid, and Opening a plurality of openings on the upper end surface of the upper lid,
While extending the knob of the slider from the opening,
In a DIP switch provided with a contactor having both ends extending to an appropriate length in the sliding direction at the bottom of the slider, the connector is embedded and molded integrally with the upper lid,
The contactor is configured so as to extend outward from both side surfaces of the upper cover, and both ends of the contactor bend upward to come into contact with the bottom surfaces of connectors provided on both sides on the back surface of the upper cover.

[0009] A pointed welding edge is formed at the bottom edge around the upper lid periphery, and a concave groove is formed around the periphery of the base that closely corresponds to the upper lid bottom edge, and the welding edge and the concave groove are formed. By welding to form a joint surface, so that the upper lid and the base are firmly connected to each other, or conversely, a concave groove is formed in the bottom edge of the upper lid orbit, and the upper lid bottom of the base is By forming a pointed welding edge around the circumference closely corresponding to the edge, and welding the welding edge and the concave groove to form a joining surface, so that the upper lid and the base are firmly connected, or It is more preferable that the connector is positioned at an appropriate position near the upper end surface on both sides of the upper lid, or that the slider is provided in a size that can always seal the opening of the upper lid in a watertight manner during the reciprocating sliding operation.

The product of the present invention manufactured through the above-described manufacturing steps is such that both ends of the contact are curved upward and come into contact with the bottom of the connector extending horizontally near the upper end in the upper lid. Therefore, the slider can be slid appropriately to release the contact between the contact on one side and the connector on the same side, so that a cut-off (OFF) state can be exhibited. Move in the opposite direction,
The contactors on both sides can be switched to the conductive (ON) state by simultaneously contacting the left and right connectors, respectively.
The role of the P switch can be fulfilled.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be specifically described based on embodiments, but the present invention is not limited to these examples.

FIG. 1 is a flow chart showing a process of manufacturing the DIP switch 20 according to the present invention. The manufacturing steps are as follows.

Step 1 As shown in FIGS. 1 and 2, first, a metal piece is used to
Of the terminal arrangement 211 by punching and pressing.
1 is electroplated, and then the terminal arrangement 211
Into a mold (not shown) and cover with plastic material
Then, the semi-finished product of the upper lid 21 is completed by removing the unnecessary connecting portion of the terminal arrangement 211 by molding. The semi-finished product of the upper lid 21 is provided with a plurality of openings 212 at the upper end thereof, and has connection pins 213 extending outward from the connector on both side surfaces near the upper end of the upper lid 21 so as to protrude.
In addition, a pointed welding edge 214 is also formed at the bottom edge around the circumference of the upper lid 21, and the length extending inside the left connector is longer than the length extending inside the right connector (FIG. 6).
reference).

Step 2 Subsequently, as shown in FIGS. 1 and 3, the contactor 221 of the slider 22 is pressed to
The contactor 221 is electroplated, and both ends of the contactor 221 are molded in an upwardly curved shape, and then embedded with plastic so that the contactor integrally engages with the slider and its locking hole. To complete. The semi-finished product of the slider 22 has a knob 222 projecting from the upper end surface thereof, and as shown in FIGS. 5 and 6, the knob 222 extends from the inside to the outside of the opening 212 of the upper lid 21. The slider 22 has a locking block 22 at the bottom.
3 and the locking block 223 is
21 and is fixed to the engaging hole 224 of the contactor 21.
The two upwardly curved ends contact a connector extending inside the connection pin 213.

Step 3 As shown in FIGS. 1 and 4, the base 23 is integrally molded from a plastic material to complete a semi-finished product of the base 23. The semi-finished product of the base 23 is substantially rectangular frame-shaped. A groove 231 is formed around the circumference of the disk, and a side wall 232 is extended upward inside the groove 231 to form a rectangular frame 233 inside the side wall 232.

Step 4 As shown in FIGS. 5 and 6, the semifinished product of the upper lid 21, the semifinished product of the slider 22 and the semifinished product of the base 23 are mechanically combined, and then the welding edge 214 of the upper lid 21 and the base 23 are combined. Groove 2
31 is welded to form a joint surface 215, and
The connection pin 213 extending to the outside is bent to obtain a quality product that has passed quality inspection, and then automatically packaged to complete a manufacturing step.

Next, the mode of use and the principle of the present invention will be described below.

As shown in FIGS. 5 and 6, the contact 221 of the present invention is curved upward at both ends and comes into contact with the inner bottom of the connection pin 213 extending along the vicinity of the upper end of the upper lid 21. Therefore, when the knob 222 is moved to the left in FIG. 6 to release the contact between the right contact 221 and the right connector, the DIP switch 20 is turned off (OF).
F) In the state, the knob 222 is moved to the right,
When the left and right contactors 221 are simultaneously brought into contact with the left and right connectors, respectively, the DIP switch 20 is turned on (O
N) Present state.

In practice, the welding edge 21 at the lower edge of the upper lid 21 is formed.
Reference numeral 4 denotes a concave groove, and the concave groove 231 of the base 23 may be a welded edge. Similarly, welding can be performed to form a joint surface.

The slider 22 is desirably provided in such a size that the opening 212 of the upper lid 21 can be sealed in a watertight manner during the reciprocating sliding operation.

[0021]

The present invention configured as described above has the following advantages and effects.

1. Since both ends of the contactor are curved upward and are in contact with the bottom of the connector extending near the upper end of the upper lid, even if external debris enters the inside of the DIP switch through the opening, the base seat is By dropping on the rectangular frame, the contact effect between the connector and the contactor is not affected by dirt and can always maintain an excellent contact effect.

2. Since the contactor and the connector are provided on the upper end side inside the switch, the DIP switch of the present invention is mounted on a printed circuit board, and the printed circuit board is assembled and put in a liquid detergent. When the spatter or other residue of the welding is washed and removed, even if the liquid detergent inadvertently enters the switch from the top cover or the joint surface between the top cover and the base, it flows into the rectangular frame of the base. The contact between the connector and the contactor is not affected, so that a comfortable contact effect can be maintained.

3. Since the bottom of the slider abuts on the rectangular frame, even if the mosquito that moves the knob of the user works improperly, both ends of the contactor are already upwardly curved, so that the conventional DIP switch is used. The contactor can be used normally without any permanent deformation, and the calligraphy is not affected.

4. By combination of welding edge and groove,
After the upper lid and the base are welded and joined together, the concave groove stores the welding liquid at the weld edge after melting, effectively preventing the welding liquid from overflowing, and improving the welding effect. .

[5] Since the connectors are located on both sides of the upper end of the switch, switch stacking can be effectively reduced.

[Brief description of the drawings]

FIG. 1 is a flow chart of a relatively preferred embodiment of the present invention.

FIG. 2 is a view showing a manufacturing order of an upper lid according to the embodiment.

FIG. 3 is a diagram showing a manufacturing order of sliders in the embodiment.

FIG. 4 is a three-dimensional view of a base in the above embodiment.

FIG. 5 is a three-dimensional exploded view of the above embodiment.

FIG. 6 is a side sectional view of the above-described embodiment after completion of assembly.

FIG. 7 is a three-dimensional exploded view of a conventional DIP switch.

FIG. 8 is a side sectional view of a conventional DIP switch.

[Explanation of symbols]

 Reference Signs List 20 DIP switch 21 Top cover 211 Terminal arrangement 212 Opening 213 Connection pin 214 Welding line 215 Joining surface 22 Slider 221 Contactor 222 Knob 223 Locking block 224 Locking hole 23 Base 231 Recessed groove 232 Side wall 233 Rectangular frame

Claims (6)

[Claims] 1. A terminal arrangement of an upper lid is punched and pressed in a state where the terminal arrangement is connected to a board material, and electroplating is performed on the terminal arrangement, and the terminal arrangement is put into a mold, and embedded and molded integrally with the upper lid by plastic. And removing further unnecessary portions of the terminal arrangement, thereby producing a semi-finished product of the upper lid, and projecting the connecting pins of the connector outwardly on both sides near the upper end surface of the semi-finished product of the upper lid, The contactor of the slider is pressed, the contactor is electroplated, and both ends of the contactor are upwardly curved, and then the contactor is molded of plastic so as to integrally engage the slider and its locking hole. Step 2 of making a slider semi-finished product, Step 3 of integrally molding a frame-shaped base semi-finished product with plastic, The semi-finished product and the base semi-finished product are automatically combined by a machine, the upper semi-finished product and the base are welded, and the connection pin extending out of the upper lid is bent, and the quality is inspected. A step 4 of automatically packaging a successful product; and 2. A plurality of sets of connecting pins, which are formed by a base, an upper lid and a slider, extend outwardly from the connector and bend from both sides of the upper lid, and a plurality of connecting pins are provided on an upper end surface of the upper lid. In a DIP switch having a contactor having a contactor extending both ends of the slider to an excessive length in the sliding direction at the bottom of the slider while extending the knob of the slider through the opening, It is embedded and molded integrally with the upper lid, extends and protrudes outward from both side surfaces of the upper lid, and both ends of the contactor are curved upward to come into contact with the bottom surfaces of connectors provided on both sides on the back surface of the upper lid. DIP switch product. 3. A pointed re-welding edge is formed at a bottom edge around the periphery of the upper lid, and a concave groove is formed around the periphery of the base, which closely corresponds to the bottom edge of the upper lid. The DIP switch product according to claim 2, wherein the upper lid and the base are firmly connected by welding a groove to form a joint surface. 4. A concave groove is provided at a bottom edge around the upper lid circumference to form a pointed welding edge around the circumference of the base which closely corresponds to the bottom edge of the upper lid. The DIP switch product according to claim 2, wherein the upper lid and the base are firmly connected by welding the groove to form a joint surface. 5. The DIP switch product according to claim 2, wherein said connector is located at an appropriate position near an upper end surface on both side surfaces of said upper lid. 6. The DIP switch product according to claim 2, wherein said slider is provided in such a size that the opening of said upper lid can be always sealed watertight during the reciprocating sliding operation.