KR20100130338A

KR20100130338A - Information input unit

Info

Publication number: KR20100130338A
Application number: KR1020090048968A
Authority: KR
Inventors: 한진석
Original assignee: 엘지이노텍 주식회사
Priority date: 2009-06-03
Filing date: 2009-06-03
Publication date: 2010-12-13

Abstract

PURPOSE: An information input apparatus is provided to reduce the size of the area of the information input apparatus by reducing the moving space between a sliding member and a securing magnet. CONSTITUTION: A first magnet(120) is inserted into an acceptation hole(112) of a base(110). A printed circuit board(130) is located on the upper side of the base. The bottom of a hosing(200) is secured on the printed circuit board. A sliding member(160) is installed inside the housing. A button(190) moves with the sliding member as one body.

Description

Information input unit

The present invention relates to an information input device for an electronic device.

Today, electronic devices such as mobile communication devices have a button type information input device that generates a signal by a push operation, a wheel type information input device that generates a signal by a rotation operation, or a sliding type information that generates a signal by a sliding operation. An input device or the like is installed.

A conventional sliding type information input device will be described with reference to FIG. 1. 1 is a cross-sectional view of a conventional information input device.

As shown, a base 11 is provided, and a printed circuit board (PCB) 13 is provided on an upper surface of the base 11. A cylindrical housing 15 having an open lower surface is fixed to the base 11 so as to cover the printed circuit board 13.

A ring-shaped sliding member 21 sliding radially about its center is installed inside the housing 15, and a button 23 is coupled to an inner circumferential surface of the sliding member 21 so that the sliding member 21 and Slid together. The upper side of the button 23 is exposed to the outside through the through-hole 15a formed in the upper surface of the housing 15.

The magnets 17 and 25 are fixed to the housing 15 and the sliding member 21 so as to face each other, and the magnet 17 and the magnet 25 are sliding members 21 and buttons (sliding movement). Return 23) to its original state.

A metal plate 31 is coupled to a lower surface of the sliding member 21, and a dome sheet 33 is coupled to an inner circumferential surface of the sliding member 21, interposed between the button 23 and the plate 31. do.

Thus, as the user slides the button 23, the dome sheet 33 in contact with the button 23 is deformed, and the plate 31 is also deformed by the dome sheet 33. Then, the capacitance of the charging plate 13a is changed according to the deformation of the plate 31, and the scroll bar of the display unit of the electronic device is moved by detecting the change amount of the capacitance of the charging plate 13a.

When the scroll bar moves to the desired menu, the button 23 is pressed. Then, the dome sheet 33 and the plate 31 are sharply deformed, and the capacitance of the charging plate 13a is also rapidly changed by the sharp deformation of the plate 31. Then, by pressing the button 23 is sensed by sensing the size and the amount of change of the capacitance of the charging plate 13a, the menu on which the scroll bar is located is selected.

As shown in Fig. 1, conventionally, a, b and c regions are required as a moving space for the sliding member. For this reason, the outer diameter of the board | substrate 11 and the printed circuit board 13 also becomes long. Due to the constraint of the planar size of the information input device, there is a disadvantage that a large amount of space is required to install the information input device in the product.

The present invention provides an information input device that can reduce the size of the plane.

According to one aspect of the invention, the base is fixed to the receiving hole formed in the upper surface central portion side, the printed circuit board is installed on the upper surface of the base, the charging plate is formed, the lower surface is fixed to the printed circuit board and the upper surface A housing having a through hole formed therein, a sliding member slidably installed inside the housing, one side of which is exposed to the outside of the housing through the through hole, and the other side of which is combined with the sliding member to move integrally with the sliding member; A plate coupled to the sliding member to elastically support the button to be in close contact with the other surface of the housing and to be deformed by the movement of the button to change the capacitance and the size of the charging plate, the plate being opposed to the first magnet; 2nd magnet accommodated in the lower surface center part side of a sliding member The information input device is provided comprising a.

According to an exemplary embodiment of the present invention, by moving the portion detecting the user's touch recognition to the outside of the plate and arranging a fixing magnet having restoring force in a position where it does not interfere with the sliding member, the movement play between the sliding member and the fixing magnet can be reduced. By reducing the movement play between the sliding member and the fixed magnet, there is an effect that can reduce the size of the plane of the information input device.

In addition, the button is elastically supported toward the housing side by the elastic force of the plate to seal the through-hole side of the housing. Therefore, foreign matter that has passed through the through hole does not flow into the substrate side, thereby preventing damage to the parts caused by the foreign matter. Therefore, the durability of the product is improved.

As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Terms including ordinal numbers such as first and second may be used to describe various components, but the components are not limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

For example, without departing from the scope of the present invention, the second component may be referred to as the first component, and similarly, the first component may also be referred to as the second component.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Now, an information input device according to an embodiment of the present invention will be described in detail with reference to the drawings. The same or corresponding elements are denoted by the same reference numerals regardless of the reference numerals, and redundant description thereof will be omitted.

2 is a cross-sectional view of an information input apparatus according to an embodiment of the present invention, FIG. 3 is an exploded perspective view of the information input apparatus according to an embodiment of the present invention, and FIG. 4 is a part of the information input apparatus according to an embodiment of the present invention. Sectional perspective view.

2 and 3, an information input device according to an embodiment of the present invention may include a base 110, a first magnet 120, a printed circuit board (PCB) 130, and a second. A magnet 140, a plate 150, an outer sliding member 160, an inner sliding member 170, a dome sheet 180, a button 190, and a housing 200 are included.

Hereinafter, in referring to the plane and direction of the base 110 and other components, the plane and direction toward the vertical direction of the base are referred to as "upper and upper side", and the plane and direction toward the lower surface are referred to as "lower and lower side". .

On the central portion of the upper surface of the base 110 is formed a receiving hole 112 of a cylindrical shape that can accommodate the first magnet 120, the first magnet 120 is the N pole toward the upper side and the S side to the lower side It is inserted into the receiving hole 112 of the base 110 to face.

A printed circuit board 130 is mounted on an upper surface of the base 110 and an N pole upper surface of the first magnet 120, and a plurality of divided charging plates 132 are formed on the upper surface of the printed circuit board 130. . In addition, the second magnet 140 is in contact with the central portion of the upper surface of the printed circuit board 130.

On the central portion of the upper surface of the housing 200, a circular hole formed with a through hole 202 is provided, and a button 190, a dome seat 180, an outer sliding member 170, and an inner sliding member 170 are provided inside the housing 200. ), The plate 150 and the second magnet 140 are built-in, and the lower surface of the housing 200 is coupled to the upper surface of the printed circuit board 130 in such a manner as to cover the charging plate 132 of the printed circuit board 130. do.

The button 190 is coupled to the inner button 191 and the lower side is disposed on the inner circumferential surface of the housing 200 and the inner side button 191 and the upper side passes through the through hole 202 to be exposed to the outside of the upper surface of the housing 200 It has an outer button 192 to be.

The inner button 191 is formed in a circular shape is coupled to the outer sliding member 160 to the inner peripheral surface. In order for the outer sliding member 160 to be stably inserted into the inner circumferential surface of the inner button 191, the first support frame 161 protruding upward is formed on the outer circumferential surface of the outer sliding member 160.

In addition, a ring-shaped contact frame 193 protrudes upward from the upper edge portion of the inner button 191, and the upper surface of the contact frame 193 contacts the upper surface of the housing 200 outside the through hole 202. do. Therefore, since the lower side of the through hole 202 is sealed by the inner button 191, it is possible to prevent foreign matter introduced into the through hole 202 to be introduced into the lower side of the sliding members (160, 170).

Sliding members 160 and 170 are installed in the button 190 so as to be radially slidable based on their centers. The sliding members 160 and 170 and the button 190 are coupled to each other with the dome sheet 180 interposed therebetween so that the sliding members 160 and 170 and the button 190 move together.

The sliding members 160 and 170 are formed in a ring shape and include an outer sliding member 160 disposed on an inner circumferential surface of the button 190 and an inner sliding member 170 disposed on an inner circumferential surface of the outer sliding member 160.

The outer sliding member 160 includes a first support frame 161 protruding upward to be inserted into the inner circumferential surface of the inner button 191, a second support frame 162 to which the metal plate 150 is coupled, and a second support frame. A plurality of support grooves 163 for integrally connecting the outer peripheral surface side of the (162) and the plate 150.

The inner sliding member 170 is formed in a disk shape and the outer peripheral surface of the disk portion 171 which is in contact with the inner circumferential surface of the outer sliding member 160 and protrudingly formed on the upper surface of the disk portion 171 to be in contact with the dome sheet 180. It includes a support tube 173 protruding downward on the lower surface of the disc portion 171 to accommodate the contact portion 172, the second magnet 140. The support tube 173 may receive the second magnet 140 through the coupling frame 154 of the plate 150.

A dome sheet 180 is installed between the inner upper surface of the button 190 and the sliding members 160 and 170. The dome sheet 180 is interposed between the inner sliding member 170 and the inner button 191 to contact the contact portion 172 of the inner sliding member 170, and is deformed by the operating force of the button 190 and the plate 150. )

The plate 150 is elastically supported so that the contact frame 193 of the button 190 is in close contact with the lower surface of the housing 200, and is deformed by the movement of the button 200, and the capacitance of the charging plate 132 is reduced. Change the size.

The plate 150 is formed in a ring shape and is coupled to the lower surface of the outer sliding member 160 facing the printed circuit board 130, and is formed in a disc shape and disposed inside the outer frame 151. And an inner plate 152 coupled to a lower surface of the disc portion 171 of the inner sliding member 170, and a plurality of connecting arms 153 connecting the outer frame 161 and the inner plate 152.

In order for the inner side plate 152 to be firmly coupled with the disc part 171 of the inner side sliding member 170, the center part side protrudes toward the inner side sliding member 170 side.

The coupling frame 154 is formed between the inner plate 152 and the connecting arm 153, and the support tube 173 of the inner sliding member 170 passes through the coupling frame 154 to form the plate 150 and the inner side. The sliding member 170 is coupled. In addition, a plurality of insertion protrusions 155 are formed on the outer circumferential surface of the outer frame 151 of the plate, and the plurality of insertion protrusions 155 are respectively inserted into the plurality of support grooves 163 of the outer sliding member 160. By being coupled, the plate 150 and the sliding members 160 and 170 are firmly coupled.

In the information input device according to an embodiment of the present invention, the plate 150 is formed in a spring shape having an outer frame 151, an inner plate 152, and a connecting arm 153. Therefore, when all the parts are assembled, the connecting arm 153 of the plate 150 is deformed downward by the weight of the button 190 of the inner sliding member 170 coupled to the inner plate 152. Then, the connection arm 153 is to be restored to the upper side in its normal state by its elastic force, so the button 190 is also forced upward. Therefore, since the inner button 191 is elastically supported upward by the elastic force of the connecting arm 153, the contact frame 193 of the inner button 191 is in close contact with the upper surface of the housing 200. Therefore, since the portion of the housing 200 below the through hole 132 is sealed by the inner button 191, foreign substances may be prevented from flowing into the sliding members 160 and 170 and the portion below the button 190. .

The first magnet 120 and the second magnet 140 are disposed to face each other, and return the sliding members 160 and 170 and the button 190 which are in a sliding motion to the first state.

Specifically, the first magnet 120 is fixedly received in the receiving hole 112 of the base 110, the second magnet 140 is accommodated in the support tube 173 of the inner sliding member 170. Accordingly, the position of the first magnet 120 does not change regardless of the manipulation of the button 190 of the user, but the position of the second magnet 140 changes according to the manipulation of the button 190 of the user.

As such, in the present invention, a portion for detecting user contact recognition is disposed outside the plate 150 and the first magnet 120 is disposed on the opposite side of the printed circuit board 130 that does not interfere with the sliding members 160 and 170. By arranging, the movement play between the sliding members 160 and 170 and the first magnet 120 can be reduced (b in FIG. 1). By reducing the movement play between the sliding members 160 and 170 and the first magnet 120, the planar size of the information input device may be reduced.

Hereinafter, an operation of the information input device according to the above configuration will be described.

When the user slides the button 190 after all the parts are assembled, the sliding members 160 and 170 and the plate 150 also slide. Then, the opposing portions of the plate 150 and the charging plate 132 are changed by the sliding of the plate 150, thereby changing the capacitance of any portion of the charging plate 132. Then, the scroll bar of the display unit of the electronic device is moved correspondingly and placed in a menu such as a desired picture or symbol.

Thereafter, when the user presses the button 190, the inner plate 152 of the plate 150 is brought close to the printed circuit board 130, thereby rapidly changing the capacitance and size of the charging plate 132. . Then, the ON signal is output to the control circuit of the electronic device to select a menu.

Information is input to the electronic device by repeating the above operation.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1 is a cross-sectional view of a conventional information input device.

2 is a cross-sectional view of an information input device according to an embodiment of the present invention.

3 is an exploded perspective view of an information input device according to an embodiment of the present invention.

4 is a partial cross-sectional perspective view of an information input device according to an embodiment of the present invention.

Claims

A base on which the first magnet is fixedly accommodated in the accommodation hole formed in the central portion of the upper surface,

The printed circuit board is installed on the upper surface of the base and the charge plate is formed

A housing having a bottom surface fixed to the printed circuit board and having a through hole formed thereon;

A sliding member slidably installed in the housing,

One side is exposed to the outside of the housing through the through hole, the other side is coupled to the sliding member to move integrally with the sliding member,

A plate coupled to the sliding member to elastically support the button to be in close contact with the upper inside of the housing and to be deformed by the movement of the button to change the capacitance and the size of the charging plate; and

And a second magnet accommodated at a central portion of a lower surface of the sliding member facing each other with the first magnet.

The method of claim 1,

The button,

An inner button disposed on an inner circumferential surface of the housing, and

A lower side is coupled to the inner button and the upper side comprises an outer button that is exposed to the outside of the housing through the through hole.

The method of claim 2,

A contact frame protruding in a ring shape is formed on the upper edge portion of the inner button, the upper surface of the contact frame is in contact with the upper surface of the housing outside the through hole.

The method of claim 1,

The sliding member,

An outer sliding member formed in a ring shape and disposed on an inner circumferential surface of the button, and

And an inner sliding member disposed on an inner circumferential surface of the outer sliding member.

The method of claim 4, wherein

The outer sliding member,

A first support frame protruding upward to be inserted into an inner circumferential surface of the button,

A second support frame to which the plate is coupled;

And a plurality of support grooves integrally connecting the outer circumferential surface side of the second support frame and the plate.

The method of claim 4, wherein

And a dome sheet positioned above the outer sliding member on an inner circumferential surface of the button, wherein the dome sheet is deformed by a button to deform the plate.

The method of claim 6,

The inner sliding member,

A disc portion formed in a disc shape and having an outer circumferential surface contacting the inner circumferential surface of the outer sliding member,

A contact portion protruding from an upper surface of the disc portion to be in contact with the dome sheet, and

And a support tube protruding downwardly from a lower surface of the disc portion to accommodate the second magnet.

The method of claim 7, wherein

And the support tube receives the second magnet through the plate.

The method of claim 4, wherein

The plate,

An outer frame formed in a ring shape and coupled to a lower surface of the outer sliding member facing the PCB;

An inner plate formed in a disc shape and disposed inside the outer frame and coupled to a lower surface of the inner sliding member, and

And a plurality of connecting arms connecting the outer frame and the inner plate.

10. The method of claim 9,

A coupling frame is formed between the inner plate and the plurality of connection arms, and the inner sliding member is coupled to the plate through the coupling frame.

10. The method of claim 9,

An information input device having a plurality of insertion protrusions and a plurality of support grooves respectively formed to be inserted into and coupled to an outer circumferential surface of the outer frame and one surface of the outer sliding member.

The method of claim 1,

And the first magnet is fixed regardless of the operation of the button, and the second magnet is changed in position according to the operation of the button.