KR101647381B1 - Portable keyboard - Google Patents

Abstract

The present invention relates to a portable keyboard, and more particularly, to a portable keyboard having a simple structure and improved portability.

Description

Portable Keyboard {PORTABLE KEYBOARD}

The present invention relates to a portable keyboard, and more particularly, to a portable keyboard having a simple structure and improved portability.

2. Description of the Related Art [0002] With the recent spread of mobile terminals such as smart phones and tablet PCs, portable keyboards have been actively developed as input devices for mobile terminals.

FIG. 1A is a plan view and a side view of a foldable keyboard 10 according to the prior art, and FIG. 1B is a schematic view of a folded state of the foldable keyboard 10 according to the prior art.

1A and 1B, a conventional foldable keyboard 10 includes five bodies (first to fifth bodies) 1a, 1b, and 1c connected to each other by a hinge 2 in a longitudinal direction, 1c, 1d, and 1e. Each body is provided with a plurality of keys (3). Particularly, the foldable keyboard 10 according to the related art has a first body 1a and a second body 1a connected to the left and right sides of the third body 1c toward the third body 1c by the hinge 2, 1b and the fourth body 1d and the fifth body 1e are folded so that the foldable keyboard 1 can be moved in a shape similar to that of the book.

However, the conventional foldable keyboard according to the related art has a separate body in the longitudinal direction, so that the hinge shaft connecting the separated bodies according to the key arrangement is required to be zigzag, as shown in FIG. 1A, There has been a problem that must be complicated. Also, since the hinge axis is zigzag, the appearance of the foldable keyboard in a folded state for carrying is not good. In addition, there is a problem that the size of the foldable keyboard in the folded state is similar to the volume of a general book, so that portability and storage stability are poor.

FIG. 2A is a plan view and a side view of the portable keyboard 20 according to the related art, and FIG. 2B is a schematic view of the folded state of the portable keyboard 20 according to the related art.

2A and 2B, the portable keyboard 20 according to the related art includes a main body 21 made of silicone, which is a flexible material, and a plurality of keys 22 integrally provided in the main body 21. [ Consists of. The portable keyboard 20 according to the related art is made of silicon and can be moved in a state of being wound up when carrying as shown in FIG. 2B, thereby improving portability.

However, in the portable keyboard 20 according to the related art, since each key is also made of silicon, there is a problem in that the key and key recognition rate is poor when the user presses the key. Accordingly, there has been a problem in that a user has a high incidence of typo when using a portable keyboard according to the related art.

It is therefore an object of the present invention to provide a portable keyboard that solves the problems of the prior art.

Specifically, an object of the present invention is to provide a portable keyboard having a simple structure.

It is also an object of the present invention to provide a portable keyboard with improved portability and storage.

It is also an object of the present invention to provide a portable keyboard with improved aesthetics.

According to an aspect of the present invention, there is provided a key assembly comprising: a plurality of key assemblies including a plurality of keys aligned in a transverse direction and having an elongated shape; A main body positioned parallel to the plurality of key assemblies, for controlling an input signal input from the key assembly and transmitting the input signal to a mobile terminal; And a plurality of key assemblies and a plurality of key assemblies, and a plurality of key assemblies and a plurality of key assemblies, the plurality of key assemblies being connected to the main body, Wherein the plurality of key assemblies are folded to be wound in a manner to surround the main body when the portable terminal is carried, and the main body is extended around the main body when used.

Preferably, the flexible connection member is an FPCB that transmits an input signal from the plurality of key assemblies to the main body unit.

Preferably, the outer skin layer of the FPCB is made of one of polyethylene terephthalate (PET), polypropylene (PP), and Kevlar.

Preferably, the flexible connection member is detachably installed on the bottom surface of the plurality of key assemblies and the main body.

Preferably, the main body includes a housing having a hollow square n-post, and the housing has a length corresponding to the length of the key assembly.

Preferably, the housing includes an opening portion in which the bottom surface of the housing is opened, and a housing cover detachably disposed in the housing and covering the opening portion.

Preferably, the housing further includes an opening for a battery having one side of the housing opened, and a battery cover detachably disposed on the housing to cover the battery opening.

Preferably, the housing includes a power button for controlling ON / OFF of the portable keyboard on the other side of the housing, the power button is formed of a light-transmitting material or a semi-permeable material, (G).

Preferably, the LED is changed in color depending on the remaining power of the battery supplying power to the portable keyboard.

Preferably, the main body includes a main printed circuit board mounted on the main printed circuit board and having a control unit electrically connected to the connection unit and controlling the input signal, And a battery for supplying electric power to the main printed circuit board.

Preferably, the wireless communication module includes at least one of a BLUETOOTH communication module, a ZIGBEE communication module, and a WIFI communication module.

Preferably, the cross-section of the body portion is an n-angular shape, and the number of the plurality of key assemblies is n.

Preferably, the cross section of the key assembly is trapezoidal, and the angle between the side of the trapezoid and the base is 180 * (n-2) / 2n.

Preferably, the key assembly further includes a frame on which the flexible connecting member and the plurality of key tops are seated, a transverse side wall portion coupled to two transverse rims at an upper portion of the frame, And a longitudinal side wall portion provided at two longitudinal edges at an upper portion.

Preferably, the transverse side wall portion is spaced apart from the upper surface of the frame by a predetermined height so that the flexible connecting member can be inserted into or withdrawn from the key assembly.

Preferably, the transverse side wall portion is provided with an inclined portion which is inclined in the outward direction.

Further, preferably, the longitudinal side wall portion is provided with a magnet inside.

Preferably, the plurality of key assemblies are folded so as to be wound around the main body when the portable keyboard is carried, and are fixed in a folded state by the magnetic force of the magnets.

Preferably, the longitudinal side wall portion has a first surface facing the center of the frame of the outer circumferential surface of the magnet, and a magnetic force shielding member at a position spaced from the second surface facing the bottom surface of the frame by a predetermined distance .

Preferably, the frame includes a frame cover detachably attached to the frame at a bottom surface thereof.

Preferably, the longitudinal side wall portion includes a magnetic force shielding member at a position spaced from the first surface of the outer circumferential surface of the magnet toward the center of the frame, and the frame cover is disposed on the bottom surface of the magnet And a magnetic force shielding member positioned so that the magnet does not contact the frame at a corresponding position.

Preferably, the upper surface of the frame is provided with an elastic member elastically supporting each of the plurality of key tops.

Preferably, the elastic member is elastically lowered only to a range where the top surface of the key top is positioned in the same plane as the upper surface of the lateral side wall portion when the key top is pushed.

Preferably, the frame of the key assembly, which is farthest away from the main body when the key assembly is deployed, is provided with a protrusion protruding outwardly.

Preferably, the portable keyboard is a pentagonal keyboard.

Preferably, the portable keyboard is folded so that the portable keyboard is in the form of an elongated quadrangular prism.

According to another aspect of the present invention, there is provided a key assembly comprising: a plurality of key assemblies including a plurality of keys linearly arranged in a transverse direction, each of the key assemblies having an elongated shape and a magnet at a rim; A main body part including a control part positioned in parallel with the plurality of key assemblies and controlling an input signal inputted from the key assembly, and a wireless communication module transmitting the input signal to the mobile terminal; And an FPCB that electrically connects the plurality of key assemblies and the main body unit and mechanically connects the plurality of key assemblies to the main body unit so that the plurality of key assemblies can be connected to the main body unit and cover the outer circumferential surface of the main body unit; Wherein the plurality of key assemblies are folded so as to be wound in a manner to surround the main body portion when the portable terminal is carried, and the key assembly is deployed around the main body portion when used, and the plurality of key assemblies are folded And is fixed to each other in a state of being fixed.

Preferably, the key assembly includes a magnetic force shielding member arranged to surround a surface of the outer circumferential surface of the magnet facing the FPCB at a predetermined distance.

Preferably, the main body further includes a display unit, and the controller controls the display unit so that information on the state of the portable keyboard is displayed on the display unit.

Preferably, the information on the state of the portable keyboard includes at least one of information on a battery power remaining amount, information on a signal strength of the wireless communication module, and information on a type of a mobile terminal connected to the portable keyboard through wireless communication And includes one or more pieces of information.

According to the above-mentioned problem solving means, the present invention can simplify the structure of the portable keyboard. Thus, the present invention can improve the manufacturing speed of the portable keyboard and reduce manufacturing cost.

Further, the present invention is configured so that the external shape of the portable keyboard when the portable keyboard is portable is a square pillar shape (i.e., a bar shape), so that the portability and storage of the portable keyboard can be improved.

Further, the present invention does not have a portion that ruggedly protrudes from the outer shape at the time of carrying, and it is not necessary to use the hinge connection portion, thereby improving the beauty of the portable keyboard.

FIG. 1A is a plan view and a side view of a conventional foldable keyboard, and FIG. 1B is a schematic view of a folded state of a foldable keyboard according to the related art.
FIG. 2A is a plan view and a side view of a conventional portable keyboard, and FIG. 2B is a schematic view of a folded state of a portable keyboard according to the related art.
3 is a schematic perspective view of a folded state of a portable keyboard according to an embodiment of the present invention.
4 is a schematic perspective view of a developed state of a portable keyboard according to an embodiment of the present invention.
5 is a schematic perspective view of the body portion of the present invention.
FIG. 6 is a schematic exploded perspective view of the body portion of the present invention. FIG.
7 is a schematic cross-sectional view of the body portion of the present invention.
8A and 8B are schematic views partially showing the inside of the body portion of the present invention.
9A and 9B are a schematic perspective view and a cross-sectional view of the battery cover of the present invention.
10 is a schematic perspective view of a key assembly of the present invention.
11 is a schematic exploded perspective view of a key assembly of the present invention.
12A and 12B are schematic cross-sectional views of a key assembly of the present invention.
Figure 13 is a schematic bottom perspective view of a frame of a key assembly of the present invention.

Hereinafter, a stand according to an embodiment of the present invention and a display device including the stand will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

In addition, the same or corresponding components are denoted by the same reference numerals regardless of the reference numerals, and redundant description thereof will be omitted. For convenience of explanation, the size and shape of each constituent member shown may be exaggerated or reduced have.

On the other hand, it is to be understood that terms including ordinal numbers such as first, second, etc. may be used to describe various components, but the components are not limited by the terms, It is used only for the purpose of discrimination.

Also, when a component is referred to as being "connected "," mounted ", or "installed" to another component, it may be directly connected or attached to the other component, It should be understood that the element may also be present.

FIG. 3 is a schematic perspective view of a folded state of the portable keyboard 1000 according to an embodiment of the present invention. FIG. 4 is a schematic perspective view of the folded state of the portable keyboard 1000 according to an embodiment of the present invention. It is a perspective view.

3 and 4, a portable keyboard 1000 according to an embodiment of the present invention includes an input unit 200 including a plurality of keys, an input unit 200 for controlling an input signal input from the input unit 200, A main body for transmitting the controlled input signal to a mobile terminal (e.g., a smart phone, a tablet PC, etc.), a flexible connecting member 300 electrically and / or mechanically connecting the input unit 200 and the main body ).

Preferably, the portable keyboard 1000 according to the present invention may be a pantagraph keyboard in order to reduce the overall size.

The input unit 200 includes a plurality of key assemblies, and the plurality of key assemblies are connected to the flexible connecting member 300.

The plurality of key assemblies include a plurality of keys or keytops 211 aligned in the transverse direction, and the overall shape of the plurality of key assemblies is an elongated shape. That is, each key assembly is a separate part based on the horizontal direction key sequences in a typical keyboard.

The plurality of key assemblies include respective key assemblies. 4, the plurality of key assemblies may include a first key assembly 200a, a second key assembly 200b, a third key assembly 200c, and a fourth key assembly 200d. . Of course, this is an example, and the present invention is not limited thereto, and may further include an additional key assembly such as a fifth key assembly, a sixth key assembly, etc., depending on the use of the portable keyboard 1000. [

The plurality of key assemblies are folded to be wrapped around the main body of the portable keyboard 1000 in a wrapping manner (see FIG. 3), and are deployed around the main body when the portable keyboard 1000 is used ). Each of the plurality of key assemblies is configured such that when the key assembly is wound and folded, the upper surface of the plurality of key assemblies is in contact with the outer peripheral surface (i.e., each surface) of the main body.

On the side of a key assembly (e.g., the first key assembly 200a in FIG. 4) located at one end of the plurality of key assemblies, a body portion is positioned parallel to the plurality of key assemblies.

A key assembly (e.g., a fourth key assembly 200d in FIG. 4) located at the other end of the plurality of key assemblies (i.e., a key that is located farthest away from the main body during deployment of the plurality of key assemblies, The assembly includes a deploying projection 217 projecting outwardly. By providing the development protrusion 217, a plurality of key assemblies can be easily spread by using the development protrusion 217 in the folded portable keyboard 1000 for carrying.

The key assembly has a magnet on the rim. Therefore, the plurality of key assemblies can be fixed to each other in a folded state by the magnetic force of the magnet when carrying, so that the portable keyboard 1000 can be maintained in the form of an elongated positive n-square without being deployed.

Therefore, it is possible to prevent the expansion of the plurality of key assemblies by the magnetic force without any fixing means, and at the same time, the structure of the portable keyboard 1000 can be simplified.

The main body includes a control unit for controlling an input signal input from the key assembly, and a wireless communication module for transmitting the input signal controlled by the control unit to the mobile terminal.

The body portion is mechanically and / or electrically connected to the plurality of key assemblies by the flexible connection member (300).

The cross section of the body portion is of an n-square shape, wherein the number of the plurality of key assemblies is n. The number of the plurality of key assemblies is determined according to the purpose of the keyboard (i.e., depending on whether a function key or a special key is required), and the number of key assemblies is determined. For example, as shown in Figs. 3 and 4, when only four rows of transverse key columns are required, four key assemblies are provided, and the cross-sectional shape of the main body portion is a square.

The body portion may preferably have a transverse length corresponding to the transverse length of the plurality of key assemblies.

The flexible connecting member 300 has a dome switch at a position corresponding to each key top 211 on its upper surface. The flexible connection member 300 mechanically and / or electrically connects each of the plurality of key assemblies, and electrically and / or mechanically connects the plurality of key assemblies to the main body. In detail, the flexible connecting member 300 electrically connects the plurality of key assemblies and the main body portion, and the plurality of key assemblies are connected to the main body portion so as to cover the outer peripheral surface of the main body portion. And the main body is mechanically connected.

For this purpose, the flexible connection member 300 is flexible, and preferably the flexible connection member 300 may be a flexible printed circuit board (FPCB). The FPCB may be mounted on a bottom surface of the main body and a bottom surface of the plurality of key assemblies so that a plurality of key assemblies may surround the outer circumferential surface of the portable main body when the portable keyboard 1000 is carried. That is, the FPCB serves as an articulating link between the body portion and the key assembly and between the respective key assemblies.

The FPCB includes an outer layer, and the outer layer may preferably be composed of one of polyethylene terephthalate (PET), polypropylene (PP), and Kevlar.

By using the FPCB in this way, the structure of the portable keyboard 1000 can be simplified, and the manufacturing time of the portable keyboard 1000 can be shortened But also the manufacturing cost can be reduced.

The flexible connecting member 300 transmits input signals from the plurality of key assemblies to the main body. That is, the flexible connecting member 300 senses the depression of the key of each key assembly and transmits an input signal corresponding to the depressed key to the main body.

6 is a schematic exploded perspective view of the main body portion of the present invention, FIG. 7 is a schematic cross-sectional view of the main body portion of the present invention, and FIGS. 8A and 8B are schematic cross- 8a and 8b are schematic views partially showing the inside of the body portion of the present invention, and Figs. 9a and 9b are a schematic perspective view and a sectional view of the battery cover 104 of the present invention.

5 and 6, the main body includes a housing 101 having a hollow n-prismatic columnar shape, a main printed circuit board 105 (PCB) mounted inside the housing 101, And a battery accommodating portion 106 formed inside the housing 101 for accommodating a battery B for supplying power to the main printed circuit board 105.

The battery B may be an internal battery B fixed inside the housing 101 and the internal battery B may be charged through a cable such as a USB. The battery B may be an external battery B that can be inserted into the housing 101.

The main printed circuit board 105 is equipped with a control unit for controlling or processing an input signal input through the input unit 200 and a wireless communication module for transmitting an input signal controlled or processed by the control unit to the mobile terminal.

The wireless communication module may preferably include at least one of a BLUETOOTH communication module, a ZIGBEE communication module, and a WIFI communication module.

5 to 9B, the housing 101 of the main body includes an opening 101a formed on the bottom surface thereof, a housing cover detachably mounted on the housing 101 and covering the opening 101a, A battery cover 104 detachably mounted on the housing 101 to cover the opening for the battery 101 and a battery cover 102 for covering the opening for the battery 101; And a power button 102 provided on a side surface thereof for controlling ON / OFF of the portable keyboard 1000.

The housing 101 of the main body portion includes an opening portion in which the bottom surface of the housing 101 is opened and a housing cover 103 detachably positioned in the housing 101 to cover the opening portion.

A plurality of locking protrusions 107 are provided in the vicinity of the opening of the housing 101. The housing cover 103 includes a locking protrusion 103b which is detachably engaged with the locking protrusion 107, (103b) is provided at an end of a support portion (103a) extending vertically from the housing lid (103). At this time, the support portion 103a is configured to perform a predetermined elastic deformation. Preferably, the engaging jaws and / or the engaging protrusions may be rounded so that the housing lid 103 can be easily mounted on the housing 101.

Although not shown in the drawings, the housing lid 103 can be slidably mounted and / or disengaged from the opening of the housing 101. At this time, a guide groove may be formed on the inner side surface of the housing 101 so that both side surfaces of the housing cover 103 can slide.

When the housing lid 103 is fastened to the housing 101, the housing lid 103 is formed with a lead-out groove on one side thereof so that the flexible connecting member 300 can be drawn out.

When the main printed circuit board 105, the control unit, and the wireless communication module are damaged or malfunctioned, the main printed circuit board 105, the control unit, And the maintenance and replacement of the wireless communication module can be facilitated.

5 to 10A, the housing 101 includes an opening for a battery having one side of the housing 101 opened, and an opening for the battery 101, which is detachably positioned in the housing 101, And a battery cover 104 covering the battery.

The opening for the battery allows the battery B to be inserted into and detached from the battery accommodating portion 106 of the housing 101 when the battery B is the external battery B. [

As shown in FIGS. 10A and 10B, the battery cover 104 is detachably positioned on one side of the housing 101. The battery cover 104 includes a support portion 104b extending vertically from the cover body and a fixing projection 104c provided at an end portion of the support portion 104b.

In order to facilitate detachment of the battery cover 104, the fixing projection preferably has an inclined surface in a direction of insertion, and the engaging surface which is extended to the inclined surface and is engaged with one side surface of the housing 101, .

In addition, grooves 104a may be formed on both sides of the battery lid 104 to prevent sliding of the battery lid 104 when the battery lid 104 is removed and to facilitate the detachment process.

The power button 102 is provided on the other side of the housing 101 (i.e., on the side opposite to the side where the battery cover 104 is mounted). The power button 102 is formed of a light-transmitting material or a semipermeable material, and an LED is provided on an inner surface of the power button 102.

Here, the LED is configured such that the color changes according to the amount of power remaining in the battery B by the control unit. For example, when the remaining power of the battery B is 70% to 100% of the charged amount, the power button 102 emits green light, and the remaining power of the battery B is 70% to 30% , And emits red light when the remaining power of the battery B is 30% to 1% of the charged amount.

A flexible connecting member 300 is detachably installed on a bottom surface of the main body. Specifically, the flexible connection member 300 is drawn out through a groove formed between the housing 101 and the housing cover 103, the flexible connection member 300 is fixed in the housing 101, The flexible connection member 300 is electrically connected to the main printed circuit board 105 through a 24-pin to 30-pin connector.

P1, P2, P3, and P4 shown in FIG. 5 indicate positions where a plurality of key assemblies are connected to the flexible connecting member 300.

Although not shown in the drawings, a display unit may be provided on one side of the main body. The display unit may display information on the state of the portable yaw keyboard. Specifically, the control unit of the main body can control the display unit such that information on the state of the portable keyboard 1000 is displayed on the display unit.

Herein, the information on the state of the portable keyboard 1000 may include information on the remaining power of the battery B, information on the signal strength of the wireless communication module, and information on the strength of the mobile communication terminal connected to the portable keyboard 1000 And may include one or more pieces of information on the kind. Such information is illustrative, and the present invention is not limited thereto.

Figure 10 is a schematic perspective view of the key assembly of the present invention, Figure 11 is a schematic exploded perspective view of the key assembly of the present invention, Figures 12a and 12b are schematic cross-sectional views of the key assembly of the present invention, 13 is a schematic bottom perspective view of the frame 210 of the key assembly of the present invention.

10 to 13, the plurality of key assemblies includes a frame 210 on which a flexible connecting member 300 and a plurality of key tops 211 are seated, A transverse side wall portion 213 coupled to two transverse rims and a longitudinal side wall portion 215 provided at two longitudinal rims at the top of the frame 210.

The frame 210 is a support of the key assembly, and the flexible connection member 300 is seated on the upper surface of the frame 210. A plurality of key tops 211 are arranged on the upper portion of the flexible connection member 300. The frame 210 is an elongate member.

The key assembly of the portable keyboard 1000 that is wound up for portable purposes can be easily deployed by the user in the frame 210 of the key assembly which is located farthest from the main body in the deployed state of the portable keyboard 1000 among the plurality of key assemblies And a developing projection 217 is formed on the outside.

Further, on the upper surface of the frame 210, a plurality of elastic members 219 for elastically supporting the plurality of key tops 211 are provided.

The elastic member 219 includes two links intersecting with each other. At both ends of the two links, a sliding member capable of sliding on the bottom surface of the key top 211 and a sliding member capable of sliding on the top surface of the frame 210 are provided. A spring may be provided at an end of the sliding member.

The elastic member 219 may be a compression spring connected to the bottom surface of the key top 211 and the upper surface of the frame 210, although not shown in the drawing.

12A and 12B, when the key top 211 is pressed, the upper surface of the key top 211 is flush with the upper surface of the lateral side wall portion 213 It is configured to be elastically lowered only to the position where it is positioned. That is, the elastic member 219 is equal to the height h1 of the upper surface of the key top 211 and the height h2 of the upper surface of the lateral side wall 213 when the key top 211 is pressed Lt; RTI ID = 0.0 > elastically < / RTI > This can be realized by limiting the moving distance of the sliding member when the elastic member 219 is composed of the two links described above, and by adjusting the elastic modulus and compression ratio of the compression spring when the elastic member 219 is the compression spring described above . ≪ / RTI >

When the key top 211 is pushed, the elastic member 219 is configured to be elastically lowered only to a range where the upper surface of the key top 211 is positioned in the same plane as the upper surface of the lateral side wall portion 213 It is possible to prevent the nail from hitting the lateral side wall portion 213 when the key top 211 is pressed, thereby making it possible to prevent user's convenience and damage to the nail.

As described above, the main body includes a housing 101 having a hollow square n-type post, and the key assembly surrounds the housing 101 of a square n-type column, So that it can have a square n-type columnar shape. To this end, the cross section of the key assembly has a trapezoidal shape. As shown in FIG. 14A, an angle beta between the trapezoidal side wall and the base is 180 * (n-2) / 2n.

Here, the cross section of the key assembly may be a cross section at a portion where the frame 210, the transverse side wall portion 213, and the key top 211 are coupled as shown in FIGS. 12A and 12B, Section at the longitudinal side wall portion 215 provided. The cross section at the portion where the frame 210, the transverse side wall portion 213 and the key top 211 are joined becomes the same as the cross section of the longitudinal side wall portion 215 when the key top 211 is pushed.

For example, as shown in Figs. 3, 4, 12A and 12B, when the body portion has a square column shape (i.e., when n = 4), the number of the plurality of key assemblies is four, The cross-sectional shape of the key assembly is determined so that the angle [beta] between the side and the bottom of the cross section of the key assembly (i.e., the cross-section of the trapezoid) is 45 [deg.].

Two transverse sidewall portions 213 facing each other are fixed to the frame 210 in the left-right direction frame (i.e., the lateral frame) of the frame 210 at the upper portion of the frame 210.

At this time, the transverse side wall portion 213 is separated from the upper surface of the frame 210 by a predetermined height so that the flexible connecting member 300 can be drawn into and / or taken out of the key assembly No. 214). For example, only the opposite ends of the transverse side wall portion 213 may be fixed to the upper surface of the frame 210, and the remaining portions of the transverse side wall portions 213 may be spaced apart from each other by a predetermined height.

The transverse side wall portion 213 has an inclined portion 213a inclined outwardly and the inclined portion 213a is formed by winding a plurality of key assemblies around the main body portion for carrying the portable keyboard 1000 When folded, a plurality of key assemblies form a portion where they contact each other. As described above, the inclination angle of the inclined portion 213a is an angle? Between the trapezoidal sidewall of the key assembly and the base, and is 180 * (n-2) / 2n.

Two longitudinal side wall portions 215 facing each other are integrally formed on the frame 210 in the vertical direction frame (i.e., the longitudinal direction frame) of the frame 210 at the upper portion of the frame 210. The longitudinal side wall portion 215 has a magnet accommodating portion 216 therein and a magnet is accommodated in the magnet accommodating portion 216. That is, the plurality of key assemblies may be folded to be wound in a manner to surround the main body when the portable keyboard 1000 is carried, and may be fixed in a folded state by the magnetic force of the magnets.

The longitudinal side wall portion 215 has a first surface facing the center of the frame 210 of the outer circumferential surface of the magnet and a second surface facing the bottom surface of the frame 210, Respectively. Preferably, the magnetic force shielding member is a plate-shaped member made of a metallic material. By providing the magnetic force shielding member, the magnetic force of the magnet that fixes the plurality of key assemblies in a wound state has an adverse effect on the electric signal transmitted by the flexible connecting member 300 that is FPCB (for example, Error, disturbance, or the like).

The magnet may be provided in the transverse side wall portion 213 other than the longitudinally moving side wall portion.

13, a frame cover 212 may be detachably attached to the frame 210 on the bottom surface of the frame 210. As shown in FIG. The frame cover 212 can be inserted and fixed in a sliding manner in the direction of one longitudinal side wall portion 215 from one longitudinal side wall portion 215. To this end, a sliding groove for guiding the frame cover 212 may be provided on a bottom edge of the frame cover 212.

By providing the frame cover 212, it is easy to insert and replace the magnet into the magnet accommodating portion 216, so that the manufacturing process of the portable keyboard 1000 can be simplified, and when the magnetic force of the magnet is weakened, So that the maintenance of the portable keyboard 1000 can be facilitated.

In this case, the magnetic force shielding member is constituted by a first magnetic force shielding member and a second magnetic force shielding member, and the first magnetic force shielding member is disposed inside the longitudinal side wall portion 215 in the center of the frame 210 And the second magnetic force shielding member is disposed at a position corresponding to the bottom surface of the magnet inside the frame cover 212 so that the magnet does not contact the frame 210 Respectively.

 As described above, the present invention can simplify the structure of the portable keyboard. Specifically, the present invention does not require a hinge-type connection part (the flexible flexible connection member replaces this) in order to connect the constituent parts of the portable keyboard, and, for example, And a fixing device such as a fixing groove are not required (a magnet is substituted for this), so that the structure of the portable keyboard can be simplified. Thus, the present invention can improve the manufacturing speed of the portable keyboard and reduce manufacturing cost.

Further, the present invention is configured so that the external shape of the portable keyboard when the portable keyboard is portable is a square pillar shape (i.e., a bar shape), so that the portability and storage of the portable keyboard can be improved.

Further, the present invention does not have a portion that ruggedly protrudes from the outer shape at the time of carrying, and it is not necessary to use the hinge connection portion, thereby improving the beauty of the portable keyboard.

The foregoing description of the preferred embodiments of the present invention has been presented for purposes of illustration and various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention, And additions should be considered as falling within the scope of the following claims.

1000: portable keyboard 100: main body part
101: housing 101a: bottom opening
102: power button 103: housing cover
103a: Support portion 103b:
104: battery cover 104a: groove
104b: Support portion 104c: Fixed protrusion
105: main printed circuit board 106: battery receiving part
107: Locking unit 200: Input unit
200a: first key assembly 200b: second key assembly
200c: Third key assembly 200d: Fourth key assembly
210: frame 211: key top
212: frame cover 213: lateral side wall portion
213a: inclined portion 215: longitudinal side wall portion
216: magnet accommodating portion 217: developing protrusion
219: elastic member 300: flexible connecting member

Claims (20)

A plurality of key assemblies including a frame and a plurality of keys seated in the frame;
A main body disposed in parallel with the plurality of key assemblies at the end of the plurality of key assemblies and processing input signals input from the key assemblies;
A connecting member connecting the plurality of key assemblies and the main body and coupling the frame to the frame; And
And a first magnet provided on each of the plurality of key assemblies,
Wherein the number of the plurality of key assemblies is n, and the main body portion is in the form of an n-
Wherein an upper surface of each of the key assemblies is wound while being in contact with respective surfaces of the main body portion. The method according to claim 1,
Further comprising a second magnet provided on the main body portion at a position corresponding to the first magnet when the plurality of key assemblies cover at least a part of the surface of the main body portion. delete The method according to claim 1,
Wherein the connecting member includes a flexible printed circuit board (FPCB). The method according to claim 1,
The key assembly includes:
A first side wall portion coupled to two transverse rims at an upper portion of the frame and a second side wall portion provided at two longitudinal rims at an upper portion of the frame. 6. The method of claim 5,
Wherein the first magnet is located inside the first sidewall portion,
Wherein the plurality of key assemblies are folded to be wound in a manner to surround the main body when the portable keyboard is carried, and are fixed in a folded state by the magnetic force of the magnets. The method according to claim 6,
Wherein the first side wall part further comprises a magnetic force shielding member located in the center of the frame in the first magnet. The method according to claim 6,
Wherein the first side wall portion includes a magnet accommodating portion having a bottom surface opened and the first magnet disposed therein, and the frame includes a frame cover detachably mounted on a bottom surface thereof. 6. The method of claim 5,
Wherein the first side wall portion is spaced apart from the upper surface of the frame by a predetermined height so that the connecting member can be drawn into or drawn out from the key assembly. 6. The method of claim 5,
Wherein the first side wall portion includes an inclined portion that is inclined outwardly. 6. The method of claim 5,
And an elastic member for elastically supporting each of the plurality of key tops is provided on an upper surface of the frame. 12. The method of claim 11,
Wherein the elastic member is elastically lowered only to the extent that the top surface of the key top is positioned in the same plane as the top surface of the first side wall portion when the key top is pushed. The method according to claim 1,
Wherein a protrusion protruding outwardly is provided in a frame of a key assembly which is farthest from the main body when the key assembly is deployed. The method according to claim 1,
Wherein the connecting member is detachably installed on the bottom surface of the plurality of key assemblies and the main body. The method according to claim 1,
The main body
A housing having an interior hollow polygonal columnar shape and a length corresponding to the length of the key assembly;
And a main printed circuit board provided inside the housing and electrically connected to the connection member and having a control unit for controlling the input signal,
Wherein the housing includes an insertion hole into which the connection member is inserted to connect the connection member to the main printed circuit board. 16. The method of claim 15,
And a wireless communication module mounted on the main printed circuit board for transmitting the input signal to a mobile terminal. 16. The method of claim 15,
Wherein the housing includes an opening portion in which the bottom surface of the housing is opened, and a housing cover detachably disposed in the housing and covering the opening portion. The method according to claim 1,
The main body
A display unit;
A control unit for controlling the display unit so that information on the state of the portable keyboard is displayed on the display unit; And
And a wireless communication module for transmitting the input signal to an external terminal,
The information on the state of the portable keyboard includes at least one of information on the remaining battery power, information on the signal strength of the wireless communication module, and information on the type of the mobile terminal connected to the portable keyboard by wireless communication Wherein the portable keyboard is a portable keyboard. The method according to claim 1,
Wherein the key assembly has a trapezoidal cross section and an angle between the side of the trapezoid and the base is 180 * (n-2) / 2n. A plurality of key assemblies including a plurality of key tops;
A body portion disposed adjacent to a first key assembly disposed at one end of the plurality of key assemblies; And
And a connecting member for electrically connecting the plurality of key assemblies to the main body,
Wherein when the connecting member is in the first state, the upper surface of the plurality of key tops is exposed to the outside in the first state,
And the upper surface of the plurality of key tops faces an outer peripheral surface of the main body when the connecting member is in the second state.

Images