KR20100001042A - Folder type portable terminal and ground structure thereof - Google Patents

Folder type portable terminal and ground structure thereof Download PDF

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Publication number
KR20100001042A
KR20100001042A KR1020080060783A KR20080060783A KR20100001042A KR 20100001042 A KR20100001042 A KR 20100001042A KR 1020080060783 A KR1020080060783 A KR 1020080060783A KR 20080060783 A KR20080060783 A KR 20080060783A KR 20100001042 A KR20100001042 A KR 20100001042A
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KR
South Korea
Prior art keywords
ground
hinge module
portable terminal
present
rotating body
Prior art date
Application number
KR1020080060783A
Other languages
Korean (ko)
Inventor
이종철
Original Assignee
삼성전자주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성전자주식회사 filed Critical 삼성전자주식회사
Priority to KR1020080060783A priority Critical patent/KR20100001042A/en
Publication of KR20100001042A publication Critical patent/KR20100001042A/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0277—Details of the structure or mounting of specific components for a printed circuit board assembly

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Set Structure (AREA)

Abstract

PURPOSE: A folder type portable terminal and a ground structure thereof are provided to obtain a large ground area including the entire area of a hinge module, thereby obtaining stabler antenna receiving performance. CONSTITUTION: A fixing body(110) includes a circuit board(112) with a ground layer. One side of a rotational body(210) is rotatably coupled with the fixing body. The rotational body comprises a ground expanding plate electrically connected to the ground layer. A hinge module(310) rotates the rotational body.

Description

Folder type portable terminal and ground structure

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable terminal technology, and more particularly, to a folding type portable terminal and a grounding structure thereof capable of improving a transmission / reception performance of an antenna by extending a ground area.

In general, a mobile terminal is a personal mobile communication services terminal, a personal digital assistant (PDA), a smart phone, a next-generation mobile terminal (International Mobile Telecommunication 2000: IMT-2000), and It refers to a terminal that can be used by a person, such as a wireless LAN terminal, while using various functions using wireless communication and various application programs.

Such portable terminals have not only been miniaturized and lightened by steady development, but also have various functions such as mp3, digital camera, navigation, and internet access. Accordingly, portable terminals have been reborn as complex communication terminals, and are already becoming necessities of modern people.

As the portable terminal develops, consumers demand various types of portable terminals, and correspondingly, various types of portable terminals such as a folder type, a slide type, a swing type, and a bar type are manufactured.

Among these, the folding portable terminal is generally formed with a short body. As a result, it is difficult to expand an internally formed ground region. In addition, when the ground area is formed small as described above, a problem occurs that the reception performance of the low frequency band is degraded.

In order to solve such a problem, a conventional method of applying an EMI layer to a case or the like to extend the ground area is used. However, this raises another problem of high manufacturing costs.

Accordingly, an object of the present invention is to provide a portable terminal and its grounding structure which can improve reception performance by expanding a ground area formed internally in a folding portable terminal.

In order to achieve the above object, a folding structure of a folding portable terminal according to the present invention includes a fixed body having a circuit board having a ground layer embedded therein, and one side of which is rotatably fastened to the fixed body. A rotating body including a ground extension plate electrically connected to the ground layer, and a hinge module having an outer surface formed of a metal material and interposed between the fixed body and the rotating body to rotate the rotating body. Is in electrical contact with the outer surface of the hinge module.

In addition, the foldable portable terminal according to the present invention is characterized by having the above-described grounding structure.

The folding portable terminal and its grounding structure according to the present invention use the grounding area up to the hinge module through the outer surface of the hinge module. Therefore, a larger area than the conventional one can be ensured as the ground area. In addition, in the ground structure according to the present invention, the contact portion formed to protrude from the ground extension plate contacts the outer surface of the body of the hinge module by elastic force. Therefore, even if the operation of opening or closing the rotating body is repeatedly performed, it is possible to minimize the case where the contact point is degraded or disconnected. In addition, since a large ground area including the entire area of the hinge module can be ensured, more stable antenna reception performance can be obtained.

Prior to the description of the present invention, the terms or words used in the specification and claims described below should not be construed as being limited to the ordinary or dictionary meanings, and the inventors should consider their own invention in the best way. For the purpose of explanation, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention on the basis of the principle that it can be appropriately defined as the concept of term. Therefore, the embodiments described in the present specification and the configuration shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all of the technical idea of the present invention, and various equivalents may be substituted for them at the time of the present application. It should be understood that there may be water and variations.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this case, it should be noted that like elements are denoted by like reference numerals as much as possible. In addition, detailed descriptions of well-known functions and configurations that may blur the gist of the present invention will be omitted. For the same reason, some components in the accompanying drawings are exaggerated, omitted, or schematically illustrated, and the size of each component does not entirely reflect the actual size.

1 is a perspective view schematically illustrating a portable terminal according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a case of a portable terminal according to an embodiment of the present invention. 3 is an exploded perspective view of FIG. 2.

1 to 3, the portable terminal 100 according to the embodiment of the present invention includes a fixing body 110, a rotating body 210, and a hinge module 310 in a folder type. .

The fixed body 110 is a portion which is fixed by the user's hand and is not moved. The fixing body 110 may include a key input unit and a battery for inputting numbers or letters to the portable terminal 100. The key input unit may include a character key for inputting a number or a character and a function key for inputting and controlling various commands.

The fixed body 110 includes a case 120 that protects the inside from an external force and a circuit board 112 mounted inside the case 120. The circuit board 112 generally refers to all substrates that can be mounted in the portable terminal 100, such as a printed circuit board (PCB) or a printed board assembly (PBA). The circuit board 112 is an insulating plate having a predetermined thickness, and various elements for operating the mobile terminal 100 are mounted on both surfaces thereof, and wirings for electrically connecting them are formed. As the material of the circuit board 112, prepreg, glass-epoxy resin, glass resin, or BT resin may be used.

The circuit board 112 according to this embodiment includes a ground layer (not shown). The ground layer is formed inside the circuit board 112 and is formed over the entire area of the circuit board 112. It is also electrically connected to the ground lines of the circuits formed on the circuit board 112. On the other hand, the position of the ground layer is not limited to the inside of the circuit body 120 may be formed on any one surface of the circuit board 112, it may be formed in the form of wiring rather than a layer.

Meanwhile, various wirings are formed on the circuit board 112 in addition to the above-described ground layer, and various elements are mounted. However, since it is not necessary to explain the grounding structure according to the present invention, description thereof will be omitted.

The case 120 of the fixing body 110 is an insertion groove 124 into which the rotating part 317 of the hinge module 310 to be described below is inserted and fixed to one side of a portion connected to the rotating body 210 to be described later. ) Is formed. In addition, a connection hole 122 used as a passage through which the flexible substrate 320 to be described later passes is formed at the other side.

The hinge module 310 is interposed between the fixed body 110 and the rotating body 210 which will be described later, and rotates the rotating body 210 from the fixed body 110 and moves the rotating body 210 to the fixed body 110. Open or close). The hinge module 310 according to the present embodiment has a body portion 315 forming an outer shape, and a rotating portion 317 formed inside the body portion 315 and rotating along a central axis.

Body portion 315 is formed in a cylindrical shape, the outer surface is formed of a metallic material. The body portion 315 is inserted into and fixed to one side of the insertion hole 226 formed in the case 220 of the rotating body to be described later.

The rotating part 317 is formed to protrude from one end of the body part 315, and the protruding part is fixedly coupled to the insertion groove 124 formed in the fixed body case 120. Therefore, when the rotating body 210 is rotated, the rotating portion 317 is fixed to the fixed body 110, the body portion 315 rotates with the rotating body 210 to rotate the rotating body 210 do.

On the other hand, the hinge module 310 according to the present invention is not limited to the above configuration. That is, the rotating body 210 is interposed between the fixed body 110 and the rotary body 210 can be rotated from the fixed body 110, the outer surface is formed of a metallic material as a whole if the hinge of various forms Modules can be used.

The rotating body 210 is a part that rotates based on one side of the fixing body 110, that is, the hinge module 310 according to a user's operation, and a case 220 for protecting the inside from an external force, and a case ( And a display 212 mounted inside the 220 and a ground extension plate 215.

The display 212 may be a liquid crystal display (LCD). In this case, the display 212 may include a display controller and a memory for storing data, an LCD display device, and the like.

The ground extension plate 215 is a metal plate and is used to extend the ground area. The ground extension plate 215 is installed in a space in which the display 212 is not installed in the rotating body 210, and the ground terminal 216 may be a ground portion (not shown) of the display 212 or a flexible substrate (described later). Electrically connected to the ground layer of the circuit board 112 through 320.

4 is a perspective view illustrating a ground extension plate according to an exemplary embodiment of the present invention, and FIG. 5 is a view schematically showing a state in which the ground extension plate according to FIG. 4 is coupled. Referring to this together, the ground extension plate 215 according to the present exemplary embodiment includes a contact portion 217 protruding from one side adjacent to the hinge module 310 and having an end portion contacting an outer surface of the hinge module 310. . The contact part 217 according to the present embodiment is bent and formed in a step shape as shown in the drawing. However, the present invention is not limited thereto, and may be bent into various shapes as long as it can easily contact the outer surface of the hinge module 310. In addition, the contact portion 217 may be formed through various methods, such as having a separate contact portion and fixing and fastening it to one side of the ground extension plate 215.

In addition, the contact portion 217 according to the present exemplary embodiment is formed to protrude longer than the distance between the ground extension plate 215 and the hinge module 310. Therefore, as shown in FIG. 5, when the ground extension plate 215 is fixedly fastened to the rotating body 210, the end portion of the contact portion 217 is pushed in a predetermined distance B direction by the hinge module 310 to be in contact. As a result, the contact portion 217 is provided with an elastic force in the A direction, whereby the contact portion 217 is in close contact with the hinge module 310.

In addition, in the ground structure according to the present embodiment, the contact portion 217 contacts the outer surface of the body portion 315 of the hinge module 310 through the opening 222 of the rotating body 210.

The case 220 of the rotating body 210 has a cylindrical insertion hole 226 is formed in a portion connected to the case 120 of the fixed body 110 as shown in FIG. The insertion hole 226 is fixed to the body portion 315 of the hinge module 310 is inserted into one side. The other side is used as a passage through which the flexible substrate 320 to be described later passes.

In addition, the case 220 of the rotating body 210 has two openings 222 and 224 connected to the insertion hole 226 at the portion where the insertion hole 226 is formed. The opening 222 formed at one side is positioned at the contact portion 217 of the above-described ground extension plate 215. As a result, the contact portion 217 may directly contact the outer surface of the hinge module 310. In addition, the opening 224 formed at the other side is used as a passage through which the flexible substrate 320 passes.

The flexible substrate 320 electrically connects the circuit board 112 of the fixed body 110 and the display 212 of the rotating body 210 and transmits signals to each other. In the present embodiment, the flexible substrate 320 is installed along the opening 224 of the rotating body case 220, the insertion hole 226, and the connection hole 122 of the fixed body case 120. Since the flexible substrate 320 is already known and used, a detailed description thereof will be omitted.

The portable terminal according to the present embodiment configured as described above extends the ground area through the outer surface of the hinge module 310. Thus, a larger area than the conventional one can be ensured as the ground area.

As such a wide ground area is secured, the ground structure and the portable terminal according to the present invention can obtain more stable antenna reception performance. This is as follows.

FIG. 6A is a diagram showing the radiation output power of the portable terminal antenna according to the prior art, and FIG. 6B is a diagram showing the Rx level of the portable terminal according to the prior art. FIG. 7A is a diagram showing the radiant output power of the portable terminal antenna according to the embodiment of the present invention, and FIG. 7B is a diagram showing the Rx level of the portable terminal according to the embodiment of the present invention. 6A to 7B show active TRP (Total Radiated Power) measurement results for 975ch, 41ch, and 124ch in the GSM band, and are measured at a distance of about 1.5m from the mobile terminal.

First, referring to FIG. 6, in the case of a mobile terminal according to the related art, TRPs corresponding to respective frequencies were measured as 18.728 dBm, 22.998 dBm, and 23.363 dBm. Rx levels were measured at -9.132 dBm, -12.680 dBm, and -13.875 dBm, respectively.

However, referring to FIG. 7, in the mobile terminal having the ground structure according to the embodiment of the present invention, TRPs corresponding to respective frequencies were measured as 23.893 dBm, 27.475 dBm, and 27.984 dBm. In addition, Rx levels were measured as -5.353dBm, -8.509dBm, and -9.823dBm, respectively.

Looking at this, it can be seen that the portable terminal according to the present invention shows better transmission and reception performance than the conventional portable terminal in all frequency bands. That is, the transmission and reception performance of the antenna as compared to the prior art can be confirmed that the overall improvement of about 4 ~ 5dB.

The folding type portable terminal and its grounding structure according to the present invention described above are used as a grounding area through the outer surface of the hinge module to the hinge module. Therefore, a larger area than the conventional one can be ensured as the ground area. In addition, in the ground structure according to the present invention, the contact portion formed to protrude from the ground extension plate contacts the body portion of the hinge module by elastic force. Therefore, even if the operation of repeatedly opening or closing the rotating body is performed, it is possible to minimize the case where the contact point is degraded or disconnected.

In addition, since a large ground area including the entire area of the hinge module can be ensured, more stable antenna reception performance can be obtained.

On the other hand, the embodiments of the present invention disclosed in the specification and drawings are merely presented specific examples to easily explain the technical contents of the present invention and help the understanding of the present invention, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.

For example, in the present embodiment, the case in which the body portion of the hinge module is fixedly coupled to the rotating body case of the mobile terminal and the rotating portion is fixedly coupled to the case of the fixed body is illustrated and described as an example. However, the present invention is not limited thereto, and on the contrary, the body of the hinge module is fixedly coupled to the case of the fixed body, and the rotating unit is fixedly coupled to the case of the rotating body.

In addition, in the present embodiment, the case where the contact portion is formed by bending a part of the ground extension is described as an example. However, the present invention is not limited thereto, and various applications are possible as long as the terminal is electrically connected to the ground determining unit and the end thereof is continuously in electrical contact with the hinge module.

In addition, in this embodiment, the contact portion and the hinge module have been described as an example of maintaining contact with each other by elastic force, but it is also possible to fix and fasten the end of the contact portion and the outer surface of the hinge module by bonding or the like.

In addition, in the present embodiment, a grounding structure of the folding portable terminal has been described as an example, but a portable terminal (eg, a swing portable terminal, etc.) in which a fixed body and a rotating body (or a moving body) are coupled through a hinge module. Ramen can be easily applied.

In addition, in the present embodiment, the case where the ground area is expanded in the portable terminal is an example, but is a foldable device having a fixed body and a rotating body, and an electronic device having an antenna for wireless communication and a ground area corresponding thereto. Ramen can be widely applied.

1 is a perspective view schematically showing a portable terminal according to an embodiment of the present invention.

2 is a perspective view showing a case of removing the case of the portable terminal according to an embodiment of the present invention.

3 is an exploded perspective view of FIG. 2;

4 is a perspective view showing a ground extension plate according to an embodiment of the present invention.

5 is a view schematically showing a state in which the ground extension plate according to FIG. 4 is coupled.

Figure 6a is a diagram showing the radiation output power of the portable terminal antenna according to the prior art.

6B is a diagram illustrating an Rx level of a portable terminal according to the prior art.

Figure 7a is a diagram showing the radiation output power of the portable terminal antenna according to an embodiment of the present invention.

7B is a diagram illustrating an Rx level of a mobile terminal according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100: mobile terminal

110: fixed body 112: circuit board

120: case 124: insertion groove

210: rotating body 212: display

215: ground extension 216: ground terminal

217: contact portion

220: case 222, 224: opening

226: insertion hole

310: hinge module 315: body portion

317: rotating part

320: flexible substrate

Claims (7)

In the folding structure of the folding portable terminal, A fixed body having a circuit board having a ground layer embedded therein, One side is rotatably fastened to the fixed body, the rotating body including a ground extending plate electrically connected to the ground layer of the circuit board therein An outer surface formed of a metal material, the hinge module being interposed between the fixed body and the rotating body to rotate the rotating body, And wherein the ground extension plate is in electrical contact with the outer surface of the hinge module. The method of claim 1, wherein the ground extension plate, And a contact portion protruding from one side adjacent to the hinge module and having an end portion contacting an outer surface of the hinge module. The method of claim 2, wherein the contact portion, The grounding structure of the mobile terminal, characterized in that in contact with the hinge module by the elastic force provided by the ground expansion plate. The method of claim 3, wherein the contact portion, A grounding structure of a mobile terminal, characterized in that formed by bending a portion of the grounding extension plate. The method of claim 4, wherein the contact portion, A grounding structure of a mobile terminal, characterized in that it is formed to protrude in a step shape. The method according to any one of claims 1 to 5, And the circuit board and the ground extension plate are electrically connected to each other via a flexible board. The portable terminal provided with the grounding structure in any one of Claims 1-6.
KR1020080060783A 2008-06-26 2008-06-26 Folder type portable terminal and ground structure thereof KR20100001042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080060783A KR20100001042A (en) 2008-06-26 2008-06-26 Folder type portable terminal and ground structure thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080060783A KR20100001042A (en) 2008-06-26 2008-06-26 Folder type portable terminal and ground structure thereof

Publications (1)

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KR20100001042A true KR20100001042A (en) 2010-01-06

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KR1020080060783A KR20100001042A (en) 2008-06-26 2008-06-26 Folder type portable terminal and ground structure thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170058748A (en) * 2015-11-19 2017-05-29 삼성전자주식회사 Folder type electronic device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170058748A (en) * 2015-11-19 2017-05-29 삼성전자주식회사 Folder type electronic device

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