KR20140035055A - Mobile terminal and apparatus for molding a battery equipped therein - Google Patents

Abstract

A mobile terminal includes a front case, a plane frame which is combined to the rear of the front case, a printed circuit board which is supported by the rear of the frame, and a battery which includes a first curved surface on one side and a second curved surface on the other side and is located on the rear of the printed circuit board to form a convex gap between the first curved surface and the printed circuit board. At least part of an electronic component mounted in the printed circuit board is located in the gap. The mobile terminal can have a new design having a curved rear side and a thin thickness.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a mobile terminal and a press-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a mobile terminal which can be slimly realized with a curved rear surface, and a press-molding apparatus capable of molding the battery.

The terminal can move And can be divided into a mobile / portable terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. The mobile terminal can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

In order to support and enhance the functionality of such terminals, it may be considered to improve the structural and / or software parts of the terminal.

Meanwhile, a mobile terminal having a curved rear surface is required to overcome the uniform design of the front and back surfaces of the mobile terminal. In general, in order to form the rear surface of the mobile terminal as a curved surface, an LCD panel, a printed circuit board, and a rear case or a battery cover having an increased center thickness are coupled to the rear surface of the battery. The inner surface of the rear case or the battery cover is flat while the outer surface of the rear case or the battery cover forms a curved surface, so that the rear surface of the mobile terminal can be curved.

However, as the thickness of the rear case or the rear battery cover is partially increased to realize the curved outer surface, the thickness of the entire mobile terminal is increased. As a result, there is a limitation in realizing a mobile terminal having a slim design because the rear surface is formed of a curved surface.

The present invention has been proposed in order to satisfy the above-mentioned need, and it is an object of the present invention to provide a mobile terminal having a battery of a new shape and having a curved rear surface and being slimmer than a mobile terminal having a flat design, And an object thereof is to provide a device.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

According to an aspect of the present invention, there is provided a printed circuit board including a front case, a flat frame coupled to a rear surface of the front case, a printed circuit board supported by the rear surface of the frame, a first curved surface on one side, And a battery positioned on a rear surface of the printed circuit board such that a convex gap is formed between the first curved surface and the printed circuit board, wherein at least a part of the electronic component mounted on the printed circuit board The present invention provides a mobile terminal in which a mobile terminal is located.

According to another aspect of the present invention, there is provided a mold comprising: an upper mold including a core formed with a first curved surface on a lower surface; a lower mold including a groove formed on a position corresponding to the core, And a driving unit that relatively moves the upper mold relative to the lower mold so that the core is inserted into the groove, wherein one side of the core and the groove are coupled with each other while the other side includes the first curved surface, There is provided a press mold apparatus for molding a battery cell including two curved surfaces.

The effects of the mobile terminal according to the present invention and the press-molding apparatus for molding the battery included therein will be described as follows.

According to at least one of the embodiments of the present invention, By arranging the other parts in the empty space formed when the curved battery is installed, it is possible to prevent the thickness of the mobile terminal from increasing even though the rear surface is curved. In addition, when the battery mounted in the mobile terminal having a curved shape on the rear surface without increasing the thickness is curved, the planar size of the battery can be increased, and the capacity of the battery can also be improved. Accordingly, it is possible to provide a mobile terminal having a slim and new design and at the same time improving the battery use time.

Also, according to at least one embodiment of the present invention, a press mold apparatus capable of manufacturing a curve-shaped battery capable of forming a curved rear surface without increasing the thickness of the mobile terminal can be provided by a hot press method have.

The effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art from the following description will be.

1 is a front perspective view of a mobile terminal according to an embodiment of the present invention.
2 is a rear perspective view of a mobile terminal according to an embodiment of the present invention.
3 is an exploded perspective view illustrating a rear case and a battery of a mobile terminal according to an embodiment of the present invention.
4 is a cross-sectional view of a mobile terminal according to an embodiment of the present invention.
5 and 6 are cross-sectional views of a mobile terminal including battery support portions according to various embodiments of the present invention, and respective battery support portions.
7 is a perspective view illustrating a battery having a damper according to another embodiment of the present invention.
8 is an exploded perspective view showing a battery and a rear cover of a mobile terminal according to another embodiment of the present invention.
9 is a view showing a press mold apparatus according to an embodiment of the present invention.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

The mobile terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), navigation and the like.

However, it will be understood by those skilled in the art that the configuration according to the embodiments described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, unless the configuration is applicable only to a mobile terminal.

1 is a perspective view of an example of a mobile terminal or a mobile terminal according to the present invention.

The disclosed mobile terminal 100 includes a bar-shaped terminal body. However, the present invention is not limited thereto, and can be applied to various structures such as a slide type, a folder type, a swing type, and a swivel type in which two or more bodies are relatively movably coupled.

The body of the mobile terminal 100 includes a casing 101, 102, In this embodiment, the case may be divided into a front case 101 and a rear case 102. [ A variety of electronic components are embedded in the space formed between the front case 101 and the rear case 102.

A part such as a USIM card and an auxiliary storage medium such as a memory card that requires detachment may include an opening in the case so that the part can be inserted into the case from the outside. A slot may be formed on a side surface of the case so that the auxiliary storage medium may be inserted from the side surface of the mobile terminal 100 and a card slot may be formed on the surface of the rear case 102.

The cases 101, 102, and 103 may be formed by injection molding synthetic resin or may be formed of a metal material such as stainless steel (STS) or titanium (Ti).

The display unit 151, the sound output unit 152, the camera 121, the user input units 131 and 132, the microphone 122, the interface 170, and the like may be disposed in the terminal cases 101 and 102.

The display unit 151 occupies most of the main surface of the front case 101. A sound output unit 152 and a camera 121 are disposed in an area adjacent to one end of both ends of the display unit 151 and a user input unit 131 and a microphone 122 are disposed in an area adjacent to the other end. The user input unit 132 and the interface 170 may be disposed on the side surfaces of the front case 101 and the rear case 102. [

The user input unit is operated to receive a command for controlling the operation of the mobile terminal 100 and may include a plurality of operation units 131 and 132. The operation units 131 and 132 may be collectively referred to as a manipulating portion.

The contents inputted by the first or second operation unit 131 or 132 may be variously set. For example, the first operation unit 131 receives a command such as start, end, scroll, and the like, and the second operation unit 132 inputs a command such as adjustment of the sound output from the sound output unit 152 Can receive.

In addition to the display unit 151, the operation units 131 and 132 may include a touch sensor 137 in addition to the operation units 131 and 132, The user's command can be inputted only by the user.

2 is a rear perspective view of the mobile terminal shown in FIG.

As shown in FIG. 2, the rear surface of the terminal body, that is, the rear surface of the rear case 102, may be a curved surface. As the rear surface of the rear case 102 forms a curved surface, a new design of the terminal body is provided, and the grip feeling can be improved when the user grips the hand.

A camera 121 'may be further mounted on the curved rear case 102. The camera 121 'may have a photographing direction substantially opposite to the camera 121 (see FIG. 2), and may be a camera having the same or different pixels as the camera 121.

For example, the camera 121 may have a low pixel so that the face of the user can be photographed and transmitted to the other party in case of a video call or the like, and the camera 121 ' It is preferable to have a large number of pixels. The cameras 121 and 121 'may be installed in the terminal body such that they can be rotated or pop-up.

A flash 123 and a mirror 124 may be additionally disposed adjacent to the camera 121 '. The flash 123 illuminates the subject when the subject is photographed by the camera 121 '. The mirror 124 allows the user to illuminate the user's own face or the like when the user intends to shoot himself / herself (self-photographing) using the camera 121 '.

An acoustic output 152 'may be additionally disposed on the rear surface of the terminal body. The sound output 152 'on the rear side of the body may implement the stereo function together with the sound output 152 (see FIG. 2) of the front side of the body, and may be used for the implementation of the speakerphone mode during a call.

In addition to the antenna for talking and the like, a broadcast signal reception antenna 116 may be additionally disposed on the side of the terminal body. The antenna 116, which forms part of the broadcast receiving module, may be installed to be able to be drawn out from the terminal body.

Hereinafter, a structure for mounting the curved surface battery 200 of a mobile terminal according to an embodiment of the present invention will be described in detail with reference to FIGS. 3 and 4. FIG.

FIG. 3 is an exploded perspective view showing a state in which a rear case 102 of a mobile terminal is separated according to an embodiment of the present invention, and FIG. 4 is a sectional view of the mobile terminal according to the embodiment of FIG. 3 and 4, the mobile terminal according to the present embodiment includes a front case 101, a flat frame 1010, a printed circuit board 1020, and a battery 200.

Referring to Fig. 3, a front case 101, a curved battery 200, and a rear case 102 are shown. As shown in FIG. 4, a printed circuit board 1020 is supported inside the front case 101 by a flat frame 1010 and a rear surface of the flat frame 1010. The flat frame 1010 is coupled to the rear surface of the front case 101 and the printed circuit board 1020 is disposed on the rear surface of the flat frame 1010. The printed circuit board 1020 is supported by the rear surface of the flat frame 1010, and the printed circuit board 1020 may be a flexible PCB. A display module 1510 that implements the display unit 151 of the mobile terminal may be provided on the front surface of the flat frame 1010.

The curved battery 200 includes a first curved surface 11 on one side and a second curved surface 12 on the other side. Preferably, the first curved surface 11 and the second curved surface 12 may be parallel. 4, the curved battery 200 is mounted on the rear surface of the printed circuit board 1020 such that the first curved surface 11 faces the printed circuit board 1020. As shown in Fig. At this time, both ends of the curved battery 200 may be supported by the rear surface of the printed circuit board 1020 as shown in Fig. 4, or may be supported by other parts such as the flat frame 1010 have.

According to the present embodiment, as shown in FIGS. 3 and 4, the curved shape battery 200 may be an embedded battery 200 that can be charged. The rear case 102 can directly engage with the front case 101 at the rear surface of the curved battery 200 and the rear case 102 forms the rear surface appearance of the mobile terminal. In this case, the rear case 102 may include a curved surface 14 formed corresponding to the second curved surface 12 located on the outer side when the curved battery 200 is mounted on the mobile terminal.

When the curved battery 200 is mounted on the rear surface of the printed circuit board 1020 such that the first curved surface 11 of the curved shape battery 200 faces the printed circuit board 1020, A convex gap 20 is formed between the printed circuit board 1020 and the curved battery 200 by the shape of the first curved surface 11. As shown in the enlarged view of FIG. 4, various electronic components 210 are mounted on the printed circuit board 1020 using a space formed by the gaps 20.

When the printed circuit board 1020 and the battery 200 are overlapped with each other, the printed circuit board 1020 can be mounted on the printed circuit board 1020 as the convex spaces generated by the curved shape of the battery 200 are utilized as component mounting spaces, It is possible to prevent the thickness of the mobile terminal from increasing due to the size of the electronic component 210. As a result, each of the printed circuit board 1020 and the battery 200 can have a wide planar area, while maintaining a slim design of the mobile terminal. The arrangement of the electronic components 210 can be freed up by providing the printed circuit board 1020 having a large planar area and the capacity of the battery 200 is increased by the curved shape battery 200 having a large planar area The holding time of the battery 200 may be prolonged.

Hereinafter, a mobile terminal according to various embodiments of the present invention will be described with reference to FIGS. 5 to 8. FIG.

According to one embodiment, the mobile terminal may further include a battery support between the curved shape battery 200 and the printed circuit board 1020. The battery supporting part includes a third curved surface 13 having a shape corresponding to the first curved surface 11 facing the printed circuit board 1020 among the curved shape batteries 200. The third curved surface 13 includes a first curved surface 13 11 formed by the printed circuit board 1020 and the curved surface 200 of the curved battery 200 so as to contact the first curved surface 11 of the curved battery 200.

According to the present embodiment, the first curved surface 11 of the curved battery 200 can be supported by the third curved surface 13 of the battery supporting part. As a result, it is possible to prevent the shape of the curved battery 200 from being deformed by the external force on the side of the second curved surface 12 of the curved shape battery 200 by dropping the mobile terminal, Thereby preventing the position from being changed. The durability of the mobile terminal can be improved by further including the battery support portion.

5 is a partial cross-sectional view of a mobile terminal having a battery support unit according to an exemplary embodiment and a battery support unit according to the exemplary embodiment. FIG. 6 illustrates a portion of a mobile terminal having a battery support unit according to another example. Sectional view is shown.

For example, as shown in FIG. 5, the battery support may be formed of a metal plate 310. The metal plate 310 forming the battery supporting part may be bent to form the third curved surface 13 and the both ends 311 may be bent. The bent ends 311 may be in contact with the rear surface of the printed circuit board 1020 or may be in contact with other parts in the mobile terminal such as the flat frame 1010.

The metal plate 310 may be provided in the gap 20 between the printed circuit board 1020 and the curved battery 200 such that the third curved surface 13 is in close contact with the first curved surface 11 . Even if pressure is applied to the convex third curved surface 13 of the curved shape battery 200 by an external impact, the metal plate 310 can prevent the curved shape of the battery 200 from being deformed by the support of the curved shape battery 200 have.

As another example, as shown in FIG. 6, the battery support may be made of silicon 320. At least one side of the silicon 320 constituting the battery supporting part forms the third curved surface 13 and the other side is connected to the printed circuit board 1020 or the flat frame 1030 so that the third curved surface 13 is in close contact with the first curved surface 11. [ 1010). ≪ / RTI > Preferably, two or more silicon battery supports 320 may be provided at regular intervals within the gap 20 between the printed circuit board 1020 and the curved battery 200. The silicon battery support may be formed by direct application of the silicone into the gap 20 between the printed circuit board 1020 and the curved battery 200 or by forming the silicon battery support (320) may be disposed within the gap (20) during assembly.

According to another embodiment, the mobile terminal may further include a damper 220 formed on the first curved surface 11 of the curved shape battery 200. FIG. 6 shows a curved battery 200 having a damper 220 according to the present embodiment.

6, the damper 220 may be mounted on the first curved surface 11 of the curved battery 200 such that the curved battery 200 is mounted on the mobile terminal 1010, such as the printed circuit board 1020 or the flat frame 1010, And may be formed at both ends that are in contact with other parts of the body. That is, the damper 220 may be formed by connecting the curved shape of the curved shape of the curved shape to the shape of the curved shape of the curved shape, May be formed at the contacting portion. For example, as shown in FIG. 6, the damper 220 may be formed along both edges of the first curved surface 11 of the curved battery 200.

4, the damper 220 may be squeezed by the battery 200, the printed circuit board 1020, or the like when the curved battery 200 is mounted in the mobile terminal. Preferably, the damper 220 may be made of a resilient material such as silicon or pad.

The damper 220 may be formed in the curved shape battery 200 through various methods. In one example, the damper 220 may be dual injection molded with the curved battery 200. In this case, the damper 220 is formed integrally with the curved shape battery 200. As another example, the damper 220 may be formed separately from the curved battery 200 and attached to the finished curved battery 200.

According to the present embodiment, when the curved shape battery 200 is mounted in the mobile terminal, the damper 220 is provided at a portion supported by other parts, so that when an external force is applied to the curved shape battery 200 by dropping or the like It is possible to prevent the battery 200 or other parts from being damaged. Since the curved battery 200 is supported by other parts through a relatively small area, when an external force is applied to the battery 200, A greater force is exerted on the portion where it contacts. The damper 220 absorbs the force, thereby improving the durability of the mobile terminal.

According to another embodiment, the curved shape battery 200 may be provided in the mobile terminal in an interchangeable fashion. In this case, since the performance of the mobile terminal 100 is diversified, a large power consumption can be compensated.

8 is a rear perspective view showing the surface of the rear case 102 by separating the rear cover 103 of the mobile terminal including the detachable curved battery 200.

8, the front case 101, the rear case 102, the rear cover (or cover of the battery 200) 103, the camera 121 ', the interface 170, the microphone 122, A battery 200, a battery mounting portion 104, a USIM card mounting portion 105, and a memory card mounting portion 106 are shown.

In this embodiment, the rear case 102 can engage with the front case 101 between the printed circuit board 1020 and the curved battery 200. At this time, the rear case 102 may include at least a third curved surface 13 formed corresponding to the first curved surface 11 of the curved battery 200, and preferably the third curved surface 13 May be recessed on the surface of the rear case 102 so as to form the battery mounting portion 104. The battery mounting part 104 is provided with a connection terminal to be electrically connected to a component mounted inside the case.

The third curved surface 13 of the rear case 102 can be in contact with the first curved surface 11 of the curved shape battery 200 when the curved shape battery 200 is mounted on the battery mounting portion 104. [ The third curved surface 13 of the rear case 102 supports the first curved surface 11 of the curved battery 200 so that the shape of the curved battery 200 And can be prevented from being changed. In addition, a gap 20 may be formed between the third curved surface 13 of the rear case 102 and the printed circuit board 1020. The electronic components 210 mounted on the printed circuit board 1020 may be located in the gap 20,

In addition to the battery mounting portion 104, a space for mounting external components such as the USIM card mounting portion 105 and the memory card mounting portion 106 may be provided on the surface of the rear case 102. In general, an external component mounted on the surface of the rear case 102 is used to extend the functions of the mobile terminal 100 in order to satisfy diversified functions of the mobile terminal 100 to be.

8, the USIM card mounting portion 105 and the memory card mounting portion 106 may be formed on the side of the battery mounting portion 104 or on the bottom surface of the battery mounting portion 104, May be formed to be exposed to the outside. In this case, the size of the battery mounting part 104 can be larger, and the size of the battery 200 can be increased.

8 shows a configuration in which the USIM card mounting portion 105 and the memory card mounting portion 106 are mounted on the rear surface of the rear case 102. In addition, Do.

The rear cover 103 covering the surface of the rear case 102 may include a fourth curved surface 14 formed to correspond to the second curved surface 12 which is the outer surface of the curved battery 200. The rear cover 103 can be engaged with the rear case 102 from the rear surface of the curved battery 200 mounted on the outside of the rear case 102. [

The rear cover 103 fixes the battery 200, the USIM card, the memory card, and the like mounted on the rear case 102 so as not to be detached, and protects the external components from external shocks or foreign matter. A waterproof structure (not shown) for sealing the rear case 102 and the rear cover 103 when the rear case 102 and the rear cover 103 are coupled to each other to prevent water from being injected into the external components.

Hereinafter, the structure and operation of the press-mold apparatus according to an embodiment of the present invention will be described with reference to FIG. As shown in FIG. 9, the press mold apparatus according to the present embodiment includes an upper mold 910, a lower mold 920, and a driving unit 930.

As shown in Fig. 9, the upper mold 910 includes a core 9101 having a lower surface formed with the first curved surface 11. A groove 9201 having a bottom curved surface 12 is formed at a position corresponding to the core 9101 of the lower mold 920. The driving unit 930 relatively moves the upper mold 910 relative to the lower mold 920 so that the core 9101 of the upper mold 910 is inserted into the groove 9201 of the lower mold 920. When the core 9101 of the upper mold 910 is inserted into the groove 9201 of the lower mold 920 while the material of the cell of the battery 200 is injected into the groove 9201 of the lower mold 920, A battery 200 cell including a first curved surface 11 and a second curved surface 12 on the other side may be formed.

By using the press apparatus according to the present embodiment, the curved shape battery 200 can be conveniently manufactured through the high-temperature pressing step. The curved shape battery 200 can be used to manufacture a mobile terminal having a curved rear surface and a thin thickness.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

101: front case 102: rear case
1010: flat frame 1020: printed circuit board
200: curved shape battery 220: damper
310, 320: battery supporting part 11: first curved surface
12: second curved surface 13: third curved surface
14: fourth curved surface

Claims (10)

Front case;
A flat frame coupled to a rear surface of the front case;
A printed circuit board supported by a rear surface of the planar frame; And
And a battery positioned on a rear surface of the printed circuit board such that a convex gap is formed between the first curved surface and the printed circuit board, wherein the first curved surface includes a first curved surface,
And at least a part of the electronic component mounted on the printed circuit board is located inside the gap. The method according to claim 1,
Further comprising a battery supporting portion provided in the gap and including a third curved surface in contact with the first curved surface and having a shape corresponding to the first curved surface. 3. The method of claim 2,
Wherein the battery supporting portion is formed of a metal plate that forms the third curved surface and is bent at both ends thereof and contacts the rear surface of the printed circuit board. 3. The method of claim 2,
Wherein the battery supporting portion is made of silicon formed on a rear surface of the printed circuit board so that at least a part thereof forms the third curved surface. The method according to claim 1,
And a fourth curved surface formed to correspond to the second curved surface, and a rear case coupled to the front case at a rear surface of the battery. The method according to claim 1,
Further comprising: a damper formed on both ends of the battery in contact with the printed circuit board on the first curved surface and being compressed when the battery is mounted. The method according to claim 6,
Wherein the damper is integrally formed with the battery by dual injection molding together with the battery. The method according to claim 1,
And a rear case coupled to the front case between the printed circuit board and the battery, the rear case including a third curved surface formed to correspond to the first curved surface and in contact with the first curved surface. 9. The method of claim 8,
And a fourth curved surface formed to correspond to the second curved surface, wherein the rear cover is coupled to the rear case at a rear surface of the battery. An upper mold including a core formed of the first curved surface;
A lower mold including a groove formed at a position corresponding to the core and having a bottom curved surface; And
And a driving unit for driving the upper mold relatively up and down with respect to the lower mold so that the core is inserted into the groove,
Wherein the battery cell is formed by combining the core and the groove with one side including the first curved surface and the other side including the second curved surface.

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