KR200274032Y1 - metal dome switch module of mobile phone - Google Patents

Abstract

The present invention relates to a volume switch module used in a mobile phone, and to adjust the volume of the mobile phone used in the side of the mobile phone, or the like of the mobile phone installed on the side of the mobile phone to change the setting state of the mobile phone It relates to a dome switch module.

The metal dome switch module of the mobile phone according to the present invention for this purpose, in the metal dome switch module installed on one side of the PCB which is built in the mobile phone, is formed of a conductive metal plate material of a predetermined thickness, one side of the pattern of the PCB The first connection part is bent in one direction to be connected to form a first connection part, and the other connection part is formed of a first connection terminal protruding in the opposite direction with respect to the first connection part to form a first connection part, and a conductive metal plate material having a predetermined thickness. A second connection terminal which is bent in the same direction as the first connection portion so as to be connected to the pattern of the PCB, and a second connection portion is formed, the other side of which extends to form a second connection portion adjacent to the first connection portion, a first connection terminal and The second connection terminal is coupled, the housing is formed with a coupling portion formed by protruding the first connection portion and the second connection portion on one side, coupled to the coupling portion of the housing The outer circumferential surface is contacted with the second connection part and is recessed according to the external pressure, and the metal part is provided with the central part contacting the first connection part to connect the first connection part and the second connection part. After molding separately in one state and inserting and fixing the metal dome on the upper surface, there is no need to manufacture and assemble the individual cover on the upper surface of the switch frame, thus simplifying the manufacturing process and further increasing the productivity. In addition, there is an effect that can be installed irrespective of the structure of the PCB installed inside the mobile phone to be installed on one side of the mobile phone.

Description

Metal dome switch module of mobile phone

The present invention relates to a volume switch module used in a mobile phone, and more particularly, to a metal dome switch module of a mobile phone installed on the side of the mobile phone to adjust the volume of the mobile phone or change the setting state of the mobile phone. It is about.

In general, a portable telephone is provided with a keypad provided with various functions for changing a phone number and a setting state of the portable telephone, and on one side of the portable telephone, volume control for easier use of a specific function of the above-described keyboard. A separate key switch is provided to which a function such as the above is provided.

Such a key switch is provided as a metal dome switch, and a general metal dome switch manufactures a terminal pattern first, and then individually insert molds the switch frame including the terminal pattern, and then the terminal pattern of the switch frame. The metal dome and PET sheet are deposited on the sheet, press-formed separately, and the metal cover having the wings for opening the metal dome and bending to the frame is bent on the switch frame. It is formed by a metal dome switch module assembled by fastening.

However, the metal dome switch module according to the prior art is separately molded in the state of inserting the terminal pattern for each switch of the unit, after laminating the metal dome and the PITTY sheet on the upper surface, and then separately cover the upper surface on the switch frame By fabricating and assembling the process, the process is complicated, and thus there is a problem that the productivity is significantly lowered. In addition, the metal dome switch module is installed on one side of the portable telephone, but is installed inside the portable telephone (Printed circuit) Due to the structure of the board, the installation was difficult, and there was a problem in that a separate support part was to be installed.

The present invention was devised to solve the above problems, and after molding separately in the state of inserting the terminal for each switch of the unit, after inserting the metal dome on the upper surface, to produce a separate cover on the upper surface of the switch frame PCB (Printed circuit board) is installed inside the mobile phone so that the productivity can be significantly increased by fixing the metal dome to simplify the manufacturing process without the need to assemble, and also to be installed on one side of the mobile phone The purpose is to provide a metal dome switch module of a portable telephone that can be installed regardless of the structure of the.

1 is a perspective view showing a metal dome switch module of a portable telephone according to the present invention.

Figure 2 is an exploded perspective view showing the internal structure of the metal dome switch module of the portable telephone according to the present invention.

Figure 3 is a cross-sectional view showing the internal structure of the metal dome switch module of the portable telephone according to the present invention.

Figure 4 is a use state showing the installation state of the metal dome switch module of the portable telephone according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: metal dome switch module 20: housing

22: metal dome coupling groove 32, 34: first and second connection terminal

32a, 34a: first and second connectors 32b, 34b: first and second connectors

40: metal dome

Metal dome switch module of the portable telephone according to the present invention for achieving the above object, in the metal dome switch module is installed on one side of the PCB is built in the portable telephone, is formed of a conductive metal plate material of a predetermined thickness, A first connection terminal is bent in one direction so that one side is connected to the pattern of the PCB, the first connection portion is formed, the other side is protruded in the opposite direction with respect to the first connection unit and the first connection terminal is formed, the predetermined thickness It is formed of a conductive metal plate, the one side is bent in the same direction as the first connection portion to be connected to the pattern of the PCB to form a second connection portion, the other side is extended to form a second connection portion adjacent to the first connection portion A second connection terminal; A housing in which the first connection terminal and the second connection terminal are coupled, and a coupling part formed to protrude from the first connection part and the second connection part on one side thereof; Is coupled to the coupling portion of the housing, the outer circumference is in contact with the second connection portion and the metal dome is provided with a central portion in contact with the first connection portion to connect the first connection portion and the second connection portion It features.

Hereinafter, with reference to the accompanying drawings will be described in detail a metal dome switch module of a portable telephone according to the present invention.

In describing the present invention, the terms defined are defined in consideration of functions in the present invention, which may vary according to the intention or custom of a person skilled in the art, and thus means to limit the technical components of the present invention. It should not be understood as.

1 is a perspective view showing a metal dome switch module of the portable telephone according to the present invention, Figure 2 is an exploded perspective view showing the internal structure of the metal dome switch module of the portable telephone according to the present invention, Figure 3 4 is a cross-sectional view showing the internal structure of the metal dome switch module of the portable telephone according to the present invention, and FIG. 4 is a state diagram showing an installation state of the metal dome switch module of the portable telephone according to the present invention.

As shown in the figure, the metal dome switch module 10 of the portable telephone according to the present invention is configured under the key switch 3 provided on one side of the portable telephone 1. It is installed on one side of the PCB2 () to be installed in, the housing 20 to form an outer shape, the connection terminal 30 is inserted into the housing 20 and integrally molded, and the connection terminal 30 is integrated A metal dome 40 coupled to the housing 20, which is formed with a wire, is provided.

The connection terminal 20 is provided with a first connection terminal 32 and a second connection terminal 34 connected by the metal dome 40 to the first connection terminal 32.

Here, the first connection terminal 32 is formed of a conductive metal plate of a predetermined thickness, the first side is bent in one direction with respect to the housing 20 is formed to be connected to the pattern formed on the PCB (2) The first connection portion 32a is formed, and the other side is inserted when the housing 20 is molded so that one surface thereof protrudes to form a first connection portion 32b positioned at the center of the metal dome 40. The connection terminal 32 is provided in a symmetrical shape on both sides with respect to the second connection terminal 34.

The second connection terminal 34 is formed of a conductive metal plate having a predetermined thickness, and is formed such that one side thereof is bent in one direction with respect to the housing 20 and connected to a pattern formed on the PCB 2. The second connection part 34a is formed, and the second connection terminal 34 is positioned between the first connection terminals 32 arranged in a symmetrical shape, and the other side of the metal dome is disposed in both directions with respect to the one side. The second connecting portion 34b connected to the first connecting portion 32b of the first connecting terminal 32 is formed by 40.

The metal dome 40 is. A conductive metal plate of a thin plate-like material having a predetermined elastic force, and a convex surface 44 protruding from one side of a central portion thereof is formed, and the second connection is formed below the outer circumferential surface with the convex surface of the metal dome 40 facing outward. The first connecting portion 32b of the first connecting terminal 32 is positioned to be in contact with the second connecting portion 34b of the terminal 34 and is spaced a predetermined distance below the central portion of the metal dome 40. To be prepared.

When a force is applied to the convex surface 44 of the metal dome 40 provided in such a state, a central portion of the metal dome 40 formed by a predetermined elastic force is embedded, and thus the first connection portion of the first connection terminal 32 ( 32b) and the second connecting portion 34b of the second connecting terminal 34 come into contact with each other, and when the force applied to the metal dome 40 is removed, it is restored to its original state by its own elastic force, so that the first connecting terminal 32 The connection of the 1st connection part 32b and the 2nd connection part 34b of the said 2nd connection terminal 34 is short-circuited.

The housing 20 may be injection molded by insert molding the first connection terminal 32 and the second connection terminal 34, and the first connection terminal 32 may be formed on one surface of the housing 20. The first connecting portion 32b and the second connecting portion 34b of the second connecting terminal 34 protrude to form a circular metal dome coupling groove 22 to which the metal dome 40 is fixed. In addition, when the metal dome 40 is coupled to the metal dome coupling groove 22, a part of the outer circumferential surface of the metal dome coupling groove 22 protrudes and is coupled.

Accordingly, the metal dome switch module 10 of the portable telephone according to the present invention is formed by injection molding each of the connection terminals 32 and 34 in the lower part of the switch 3 of each unit, and then on the upper surface thereof. By inserting the metal dome 40 and installing the fixed metal dome switch module 10, the manufacturing process can be simplified, and the productivity can be increased remarkably, and the portable dome can be installed on one side of the portable telephone 1. Regardless of the structure of the PCB 2 installed inside the phone 1, it can be installed.

Although described in detail with respect to a preferred embodiment of the present invention as described above, those of ordinary skill in the art, without departing from the spirit and scope of the present invention defined in the appended claims The present invention may be implemented in various ways. Therefore, changes in the future embodiments of the present invention will not be able to escape the technology of the present invention.

As described above, the metal dome switch module of the portable telephone according to the present invention, the present invention was devised to solve the above problems, after molding separately in the state of inserting the terminal for each switch of the unit, By inserting and fixing the metal dome on the upper surface, it is not necessary to manufacture and assemble the individual cover on the upper surface of the switch frame, so that the productivity can be increased significantly by simplifying the manufacturing process, and also to be installed on one side of the portable telephone. It can be installed regardless of the structure of the PCB that is installed inside the mobile phone so that.

Claims (1)

In the metal dome switch module is installed on one side of the PCB installed in the portable telephone, Is formed of a conductive metal plate material of a predetermined thickness, one side is bent in one direction to be connected to the pattern of the PCB, the first connection portion is formed, the other side is extended to protrude in the opposite direction to the first connection unit to form a first connection portion The first connection terminal, Is formed of a conductive metal plate material of a predetermined thickness, bent in the same direction as the first connection portion so that one side is connected to the pattern of the PCB, the second connection portion is formed, the other side is extended to the second connection adjacent to the first connection portion A second connection terminal which is formed; A housing in which the first connection terminal and the second connection terminal are coupled, and a coupling part formed to protrude from the first connection part and the second connection part on one side thereof; Is coupled to the coupling portion of the housing, the outer circumference is in contact with the second connection portion and the metal dome is provided with a central portion in contact with the first connection portion to connect the first connection portion and the second connection portion A metal dome switch module for a portable telephone.