KR20120072641A - Push Switch Device - Google Patents

Abstract

In the push switch device arranged so that the pushing direction of the pushbutton and the switching direction of the dome-shaped movable terminal are orthogonal to each other, the pushing force of the pushbutton acts perpendicularly downward to the center of the apex of the movable terminal to improve the click feeling of the movable terminal. It can minimize the wear between the movable member and the pressing member that presses it, improve the straightness of the pushbutton, and at the same time eliminate the repulsive force generated in addition to the repulsive force caused by the elastic deformation of the movable terminal to improve the operation feeling of the switch. Disclosed is a push switch device that can operate.
A push switch device comprising a housing and a dome-shaped movable terminal for electrically connecting or opening a connecting piece of a first terminal and a connecting piece of a second terminal inside the housing, wherein the vertex portion of the movable terminal is provided. A first pressing member installed in the housing so as to rotate about a switching direction for elastically deforming by pressing downward, and a second pressing member installed in the housing so as to rotate about the same rotation center axis as the first pressing member; A push button which moves linearly in a pushing direction perpendicular to a switching direction of the movable terminal and rotates the first and second pressing members in opposite directions to each other, and is formed on the first and second pressing members. Switching in which the pressing projection of the first pressing member presses the apex of the movable terminal downward in the relative rotational movement of the first and second pressing members. And a switching means for switching the pressing direction by the pressing motion of the face.

Description

Push Switch Device

The present invention relates to a push switch device, and more particularly, the pressing direction of the push button for the switch operation is arranged so as to be orthogonal to the switching direction of pressing the apex of the dome-shaped movable terminal to the elastic deformation downward. A push switch device capable of reducing the thickness of a direction.

In general, a push switch device commonly used in mobile phones, game machines, and various audio devices includes a housing formed of an insulating resin, a dome-shaped movable terminal and a plurality of fixed terminals provided in the housing, and a movable terminal protruding from the housing. It is provided with a push button to operate. Accordingly, when the apex of the movable terminal is pressed by pushing the push button, the apex is elastically deformed downward to electrically switch or open the plurality of fixed terminals to perform a switching function.

However, since the push switch device is configured to press the apex of the movable terminal downward to elastically deform downward, that is, the push direction of the push button with respect to the switching direction, the longitudinal size of the push switch device is increased. Due to this, there is a problem that the size of the electronic product to which the push switch device is assembled is also thickened.

Recently, in accordance with the trend of miniaturization of various electronic products, the demand for reducing the assembly space for the push switch device is increasing, and various methods have been devised for this purpose. For example, the Republic of Korea Patent No. 10-755223, as shown in Figure 8, the switching direction for pressing the apex of the dome-shaped movable terminal 130 elastically downward and the pressing direction of the push button 110 is orthogonal The structure arrange | positioned so that it may disclose is disclosed. By such a configuration, the size of the push switch device in the longitudinal direction can be greatly reduced to achieve a thinner shape.

However, in the push switch device, when the push button 110 is pressed, the pressing part 111 formed at the end of the push button 110 moves downward in a diagonal direction by the inclined plate 140, and the dome-shaped movable terminal 130 is provided. Since the vertex of the pressure is pressed, compared to the conventional method of configuring the switching direction of the movable terminal and the pushing direction of the push button, the click feeling felt when the movable terminal elastically deforms is reduced. In addition, since the connecting portion 112 is bent downward by the lowering of the pressing portion 111, the straightness of the push button 110 is bad, and the repulsive force due to the bending deformation increases the pressing force, thereby significantly reducing the feeling of switch operation. There is a drawback to this.

In addition, since the contact position between the push portion 111 and the movable terminal 130 of the push button 110 is moved between the position of the center of the vertex of the movable terminal 130 and the position outside the center of the vertex, sliding friction as much as the moving distance Abrasion occurs by. The occurrence of wear in such a switch operation process not only reduces the function and the operation feeling of the push switch device, but also shortens the life of the parts.

In order to solve the above conventional problems of the present invention, the object of the push switch device is arranged so that the push direction of the push button and the switching direction of the dome-shaped movable terminal, the pressing force of the push button is the movable terminal By precisely acting vertically downward in the center of the apex, it is possible to improve the click feeling of the movable terminal, minimize the wear between the movable member and the pressing member that presses it, improve the straightness of the pushbutton, and at the same time, the elasticity of the movable terminal It is to provide a push switch device that can improve the switch operation feeling by removing the repulsive force in addition to the repulsive force caused by deformation.

In order to achieve the above object, the present invention provides a housing, a connecting piece of a first terminal and a connecting piece of a second terminal, which are installed inside the housing and whose vertices are elastically deformed and restored by pressing. A push switch device having a dome-shaped movable terminal that is electrically connected or opened, the push switch device being provided above the movable terminal and having a pressing protrusion contacting the center of the apex, and pressing the apex of the movable terminal downward to elastically deform. A first pressing member installed in the housing so as to rotate about the switching direction, a second pressing member installed in the housing so as to rotate about the same rotational center axis as the first pressing member and overlapping the first pressing member; A part is exposed to the outside through one side wall of the housing and is perpendicular to the switching direction of the movable terminal. A push button for linearly moving in the pressing direction to relatively rotate the first and second pressing members in opposite directions, and a relative rotation of the first and second pressing members formed on the first and second pressing members. The push switch device is provided with a pressing direction switching means for converting the movement into a pressing movement in a switching direction in which the pressing projection of the first pressing member presses the apex of the movable terminal downward.

The present invention also provides an electrical connection or opening between the housing, the connecting piece of the first terminal and the connecting piece of the second terminal provided on the bottom surface of the housing by elastically deforming and restoring the apex portion, which is installed inside the housing. A push switch device having a dome-shaped movable terminal, comprising: a pressurizing protrusion located on an upper portion of the movable terminal and in contact with a center of a peak portion, and pressing a peak portion of the movable terminal downward to elastically deform a switching direction. And a first pressing member installed in the housing to rotate in such a manner that the first pressing member is superposed on the first pressing member, the second pressing member installed in the housing, and a portion of the housing being exposed to the outside through a wall of one side of the housing and the switching direction of the movable terminal. A push button for rotating the first pressing member by linearly moving in a pressing direction orthogonal to A push switch formed on a second pressing member and having a pressing direction switching means for converting a rotational movement of the first pressing member into a pressing movement in a switching direction in which the pressing projection of the first pressing member presses the apex of the movable terminal downward; The device is characterized.

In addition, the pressing direction switching means of the present invention is formed on the upper surface of the first pressing member and a plurality of inclined protrusions arranged on the circumference around the center of rotation of the first pressing member, and the bottom surface of the second pressing member And a push switch device formed of a plurality of inclined grooves formed in a corresponding shape so as to be inserted into the plurality of inclined protrusions, respectively.

In addition, the present invention is characterized in that the push switch device protruding the support shaft in the center of rotation of the upper surface of the first pressing member, and the support hole into which the support shaft is inserted in the center of rotation of the bottom of the second pressing member.

In addition, the present invention is the reverse relative rotational configuration of the first and second pressing member by the push button, as long as the protrusions formed on the outer peripheral surface of each side of the first and second pressing member are disposed at intervals of 180 degrees to each other. A pair of rotary protrusions are formed in two branches from the pushbutton, and ends thereof are positioned near the pair of rotary protrusions, respectively, to push the first and second rotary protrusions when the pushbutton moves in the pushing direction. Push switch device, characterized in that consisting of a push bar for rotating the pressing member in the opposite direction to each other.

According to the above characteristic feature of the present invention, by pressing the push button, the first and second pressing members rotate in opposite directions to each other, and the pressing direction switching means includes the first and second pressing members. Since the relative rotational motion of the switching direction of the pressing motion, the pressing projection of the first pressing member can be pressed vertically to the center of the peak of the movable terminal accurately.

Therefore, similarly to the method of configuring the switching direction of the movable terminal and the pushing direction of the push button, it is possible to maintain a good feeling of clicking and feeling when the movable terminal elastically deforms, and between the movable terminal and the pressing projection of the pressing member. Sliding friction is minimized to prevent deterioration of operation feeling due to abrasion and shortening of the life of parts, and it has good straightness during operation of push button, and other repulsive force is not generated in addition to repulsive force due to elastic deformation of movable terminal. The operation feeling of the push button is improved.

In addition, the present invention can reduce the relative rotation angle by 1/2 compared to the configuration of rotating any one of the first and second pressing members by rotating the first and second pressing members in the opposite direction to each other, thereby. The push direction movement distance of the push button is also reduced to 1/2, thereby improving the switch operation feeling.

1 is a perspective view of a push switch device according to the present invention.
Figure 2 is an exploded perspective view of the push switch device according to the present invention.
Figure 3a and Figure 3b is a longitudinal sectional view showing an operating state of the push switch device according to the present invention.
Figure 4 is a cross-sectional view of the housing showing the installation state of the first and second fixed terminal in the push switch device according to the present invention.
5a and 5b is an operating state of the push switch device according to the invention.
6a and 6b is an operating state diagram showing another embodiment of the push switch device according to the present invention.
7A is a cross-sectional view taken along the line AA of FIGS. 5A and 6A.
7B is a cross-sectional view taken along line BB of FIGS. 5B and 6B.
8 is a cross-sectional view showing a conventional push switch device.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 and 2 are a perspective view and an exploded perspective view showing a push switch device of the present invention, the housing 10 of the hexahedron having an internal space. The housing 10 is formed by injection molding an insulating resin, and the upper part is opened to install a part therein, and the upper part is opened by the cover 11 after installation of the part.

The coupling structure of the housing 10 and the lid 11 forms a coupling protrusion 10a on both side walls of the housing 10, and the coupling hole 11a in which the coupling protrusion 10a is fitted and locked to the lid 11. ) To form.

The housing 10 has a first and second fixed terminals 12 and 13 for a switching function and a movable terminal 14 for connecting or opening the first and second fixed terminals 12 and 13 to perform a switching function. ) Is installed.

The materials of the first and second fixed terminals 12 and 13 are made of a conductive metal, and are molded together in the injection molding of the housing 10 as shown in FIGS. 2 and 4 to be embedded in the housing 10. External terminals 12a and 13a for electrical connection with the lower surface of the side wall of the housing 10 are exposed, and a connecting piece 12b for connection with the movable terminal 14 is provided on the inner bottom surface of the housing 10. 13b) are respectively exposed. At this time, the connecting piece 12b of the first fixed terminal 12 is positioned at the center of the bottom surface of the housing 10, and the connecting piece 13b of the second fixed terminal 13 has both sides of the bottom edge of the housing 10. Place them in two places.

The movable terminal 14 is made of stainless steel having excellent conductivity and elasticity, is formed in a dome shape, and is installed on the bottom surface of the housing 10. The vertex in the upward direction is connected to the first fixed terminal 12. It is located on (12b) and the edge portion is provided in contact with the connecting piece (13b) of the second fixed terminal (13). Accordingly, when the apex of the movable terminal 14 is pressed and elastically deformed downward, the apex of the movable terminal 14 is in contact with the connecting piece 12b of the first fixed terminal 12 as shown in FIG. 3B. When the first and second fixed terminals 12 and 13 are electrically connected to each other and the pressing force is removed, the first and second fixed terminals 12 and 13 are moved back to their original positions as shown in FIG. 3A. Is switched off electrically.

The configuration for pressing the apex of the movable terminal 14 is the first and second pressing members (20, 30) installed on the upper and lower movable terminals 14 in the housing 10, the housing 10, It consists of a push button 40 penetrated by one side wall of, and these components are made of insulating resin to prevent short.

The first pressing member 20 provided directly on the movable terminal 14 has a pressing protrusion 21 formed in a disk shape and contacting the center of the apex of the movable terminal 14 on the bottom thereof, and the pressing protrusion 21 ) Is installed in the housing 10 to rotate about the center of the switching direction for pressing the apex portion of the movable terminal 14 vertically downward to elastically deform.

The second pressing member 30 superimposed on the first pressing member 20 is also formed in a disc shape and installed in the housing 10 to rotate about the same central axis as the first pressing member 20.

In order to support the rotation of the first and second pressing members 20 and 30, the housing 10 may include the first and second pressing members on the side where the push button 40 is installed, as shown in FIGS. 2 and 5A. It is preferable to form the arc-shaped wall 10b corresponding to the outer circumferential surfaces of the 20 and 30, and to form the arc-shaped surface 10c on one side wall opposite the arc-shaped wall 10b.

In addition, a support hole through which the support shaft 22 protrudes from the upper rotation center of the first pressing member 20 and the support shaft 22 is inserted into the lower rotation center of the second pressing member 30 ( 31 to support the first and second pressing members 20 and 30 to rotate with each other, and the first pressing member 20 supports the support hole 31 and the support shaft with respect to the second pressing member 30. The configuration is supported so as to linearly move in the axial direction, that is, the switching direction of (22).

Meanwhile, the push button 40 is disposed to penetrate one side wall of the housing 10 to be exposed to the outside and the pressing direction is orthogonal to the switching direction, and the first and second pressing members 20, 30) relative to each other in the reverse direction.

The relative rotational configuration of the first and second pressing members 20 and 30 by the push button 40 is, as shown in Figs. 2 and 5a, the outer circumference of one side of the first and second pressing members 20 A pair of rotating protrusions 23 and 32 are formed to protrude on the surface and disposed at intervals of 180 degrees, respectively, and are formed by being separated in two from the push button 40, and the ends of the pair of rotating protrusions 23, 32) and push bars 41 and 42 located near each other. Accordingly, when the push button 40 is pressed as shown in FIG. 5B, both push bars 41 and 42 push the rotation protrusions 23 and 32 of the first and second pressing members 20 and 30 simultaneously. The first and second pressing members 20 and 30 rotate relative to each other at a predetermined angle in opposite directions.

The relative rotational configuration of the first and second pressing members 20, 30 by the push button 40 of the present invention, the relative rotation of the first and second pressing members 20, 30 in the opposite direction to each other The present invention is not limited to this configuration, and may be configured to rotate only one of the first and second pressing members 20 and 30.

For example, FIGS. 6A and 6B illustrate a configuration in which only the first pressing member 20 is rotated by the push button 40, and the second pressing member (eg, the push bars 41 and 42 of the push button 40) is rotated. The length of the 30-side push bar 42 is made short so that the push bar 42 does not reach the rotation protrusion 32 of the second pressing member 30 even when the push button 40 is pressed. 2 can be achieved by inserting the rotating projection 32 of the pressing member 30 into the fixing groove 10d formed on the inner wall of the housing 10 so that the second pressing member 30 does not rotate.

In addition, although not shown, the configuration as described above may be reversed to achieve a configuration in which the first pressing member 20 does not rotate but only the second pressing member 30.

At this time, the configuration of rotating only one of the first and second pressing members (20, 30), the push button 40 as compared to the configuration of rotating the first and second pressing members (20, 30) in the opposite direction to each other The same relative rotation angle can be obtained by setting the moving distance of the direction of push twice.

Referring to FIGS. 2, 5A, and 5A, relative rotational movements of the first and second pressing members 20 and 30 may be applied to the first and second pressing members 20 and 30. It is provided with a pressing direction switching means for switching to a pressing movement in the switching direction of the).

The pressing direction switching means may include a plurality of inclined protrusions 24 protruding from the upper surface of the first pressing member 20 and disposed on a circumference having a center of rotation of the first pressing member 20 as the center. 2 is formed of a plurality of inclined grooves 33 formed on the bottom surface of the pressing member 30 in a corresponding shape so as to be inserted into the plurality of inclined protrusions 24, respectively, the inclined protrusions 24 and the inclined grooves 33 It is preferable to form in four places at equal intervals of 90 degrees.

Therefore, as shown in FIG. 7A, in the state where the inclined protrusion 24 of the first pressing member 20 is inserted into the inclined groove 33 of the second pressing member 30, the first and second pressing members When the inclined protrusion 24 and the inclined groove 33 are shifted as shown in FIG. 7B by the reverse relative rotation of the 20 and 30, the first pressing member 20 is switched with respect to the second pressing member 30. Direction, ie, in a direction orthogonal to the pushing direction of the push button 40, whereby the pressing protrusion 21 of the first pressing member 20 moves to the center of the apex of the movable terminal 14 as shown in FIG. 3B. Is pressed vertically and precisely and elastically deformed downward to perform a switching function.

At this time, the inclined protrusion 24 of the first pressing member 20 is formed in a truncated cone shape by forming a shape in which both side surfaces are cut in the circumferential direction of the first pressing member 20, even when inserted into the inclined groove 33. Preferably, the first and second pressurizing members 20 and 30 may be rotated in a reverse direction more smoothly, and the inclined grooves 33 of the second pressurizing member 30 may be partially recessed in a frustoconical shape. It is preferable to design the diameter of the second pressing member 30 to be smaller by configuring the shape cut in the circumferential direction of the second pressing member 30 to minimize the overall planar size of the push switch device.

In addition, as shown in FIG. 3A, the movable terminal 14 installed in the housing 10 is covered with a thin protective sheet 15 to be blocked so that moisture does not adversely affect the movable terminal 14.

Referring to the operation of the present invention made of such a configuration as follows.

When the push button 40 is pressed in the state shown in FIGS. 3A and 5A, the push bars 41 and 42 of the push button 40 are linearly moved in the pushing direction so that the first and second pressing members 20 and 30 are moved. Since the rotary protrusions 23 and 32 of the first and second pressing members 20 and 30 are respectively pushed, the first and second pressing members 20 and 30 have a predetermined angle in the opposite direction to each other with the switching direction orthogonal to the pushing direction of the push button 40 as the center axis. Relative rotation.

Due to the reverse rotation of the first and second pressing members 20 and 30, the inclined protrusion 24 of the first pressing member 20 and the second pressing member 30 are inclined as shown in FIGS. 5B and 7B. As the groove 33 is shifted, the first pressing member 20 is linearly moved in the switching direction with respect to the second pressing member 30. As a result, as shown in FIG. 3B, the pressing protrusion 21 of the first pressing member 20 vertically presses the center of the apex portion of the dome-shaped movable terminal 14 to elastically deform downward. The apex part comes into contact with the connecting piece 12b of the first fixed terminal 12, and the first fixed terminal 12 and the second fixed terminal 13 are in an electrically connected state.

Subsequently, when the pressing force of the push button 40 is removed, the apex is returned to its original position as shown in FIG. 3A by the elastic restoring force of the movable terminal 14, and thus spaced apart from the connecting piece 12b of the first fixed terminal 12. The first fixed terminal 12 and the second fixed terminal 13 is in an electrically open state again, the first pressing member 20 is raised again by the elastic restoring force of the movable terminal 14 and FIGS. 5A and FIG. As in 7a, the inclined protrusion 24 is inserted into the inclined groove 33 of the second pressing member 30, so that the first and second pressing members 20 and 30 and the push button 40 are in a state before being pressed. Will return.

As described above, when the pushbutton 40 is pushed once, the vertex of the movable terminal 14 is elastically deformed and restored to electrically connect and open the first and second fixed terminals 12 and 13. The switching function is performed, and as the pressing direction of the push button 40 and the switching direction for elastically deforming the apex of the movable terminal 14 are arranged to be orthogonal to each other, the vertical size of the push switch device is greatly reduced to achieve a thinner thickness. can do.

In particular, according to the present invention, as the pressing projection 21 of the first pressing member 20 presses the center of the vertex portion of the movable terminal 14 vertically and accurately by the pressing operation of the push button 40, the elastic deformation of the vertex portion. The feeling of clicking and feeling at the time of "clicking" is good, and also between the pressurizing projection 21 of the movable terminal 14 and the 1st press member 20 compared with the conventional structure which presses the vertex part of the movable terminal 14 diagonally. By minimizing the sliding friction of the product, it is possible to prevent the deterioration of operation feeling due to wear and shorten the life of the parts.

In addition, the present invention, the rotational movement of the first and second pressing members (20, 30) by the push operation of the push button 40 is converted into a linear movement in the switching direction to the elasticity of the apex of the movable terminal (14) In order to deform, in addition to the repulsive force due to the elastic deformation of the movable terminal 14, no repulsive force is additionally generated. As a result, the straightness of the push button 40 is improved, and the pressing force of the push button 40 is reduced, thereby improving the switch operation feeling.

In addition, according to the present invention, the first and second pressurizations required for lowering the first pressurizing member 20 in the switching direction by the configuration of simultaneously rotating the first and second pressurizing members 20 and 30 in opposite directions to each other. The relative rotation angles of the members 20 and 30 can be reduced to 1/2, and thus the pushing direction of the push button 40 as compared to the configuration of rotating one of the first and second pressing members 20 and 30. The travel distance can be reduced to 1/2 to improve the switch operation feeling.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to be illustrative of the present invention and not to be construed as limiting the scope of the present invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10 housing 11 cover
12,13: 1st and 2nd fixed terminal 14: movable terminal
20: first pressing member 21: pressing projection
22: support shaft 24: inclined protrusion
30: second pressing member 31: support hole
33: inclined groove 40: push button
41,42: Pushbar

Claims (5)

A dome-shaped movable terminal which is installed inside the housing and has a vertex portion elastically deformed and restored by pressure to electrically connect or open the connecting piece of the first terminal and the connecting piece of the second terminal provided on the bottom surface of the housing. In the provided push switch device,
A first pressurizing member disposed in the housing having a pressurizing protrusion located on an upper portion of the movable terminal and in contact with the center of the vertex, and rotating around a switching direction for elastically deforming by pressing the vertex of the movable terminal downward;
A second pressing member superimposed on the first pressing member and installed in the housing to rotate about the same rotation center axis as the first pressing member;
A push button through which a portion of the housing is exposed to the outside and linearly moved in a pushing direction perpendicular to a switching direction of the movable terminal to relatively rotate the first and second pressing members in opposite directions;
Pressurizations formed on the first and second pressing members and converting the relative rotational movement of the first and second pressing members into a pressing movement in a switching direction in which the pressing protrusion of the first pressing member presses the apex of the movable terminal downward. Push switch device comprising a direction switching means. A dome-shaped movable terminal which is installed inside the housing and has a vertex portion elastically deformed and restored by pressing to electrically connect or open the connecting piece of the first terminal and the connecting piece of the second terminal provided on the bottom surface of the housing. In the push switch device comprising:
A first pressurizing member disposed in the housing having a pressurizing protrusion located on an upper portion of the movable terminal and in contact with the center of the vertex, and rotating around a switching direction for elastically deforming by pressing the vertex of the movable terminal downward;
A second pressing member superimposed on the first pressing member and installed in the housing;
A push button for rotating the first pressing member by linearly moving in a pressing direction perpendicular to a switching direction of the movable terminal and partially exposed to the outside through one side wall of the housing;
A pressing direction switching means which is formed on the first and second pressing members and converts a rotational movement of the first pressing member into a pressing movement in a switching direction in which the pressing projection of the first pressing member presses the apex of the movable terminal downward; Push switch device characterized in that provided. According to claim 1 or claim 2, wherein the pressing direction switching means, a plurality of inclined protrusions formed on the upper surface of the first pressing member and disposed on the circumference around the central axis of rotation of the first pressing member, 2. A push switch device, comprising: a plurality of inclined grooves formed in a bottom surface of a pressing member and formed in a corresponding shape to be inserted into the plurality of inclined protrusions, respectively. The push switch device according to claim 3, wherein the support shaft is formed to protrude from the upper rotation center of the first pressing member, and a support hole into which the supporting shaft is inserted into the lower rotation center of the second pressing member. . According to claim 1, wherein the reverse relative rotational configuration of the first and second pressing member by the push button, are formed on the outer peripheral surface of one side of the first and second pressing member, respectively, disposed at intervals of 180 degrees to each other A pair of rotary protrusions are formed in two branches from the pushbutton, and ends thereof are positioned near the pair of rotary protrusions, respectively, to push the first and second rotary protrusions when the pushbutton moves in the pushing direction. Push switch device, characterized in that consisting of a push bar for rotating the pressing member in the opposite direction to each other.

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