JP2000114835A - Antenna holder fitting structure for portable telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate machining of a screw thread or the like and to make the structure light in weight. SOLUTION: A resin antenna holder 30 in which a rod antenna through hole 32 is formed is fitted so as to be engaged with a rod antenna fitting through hole 3-2 formed on a case 3 of a portable telephone set, and a conductive elastic member 40 for turning an antenna contact part 6i and a rod antenna 14 into electrically conductive state respectively by being in elastic contact with the antenna contact part 6i of a circuit board 6 for portable telephone set and the rod antenna 14 to be inserted to the rod antenna through hole 32 of the resin antenna holder 30 is fitted to the antenna holder 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

(Contents) Technical field to which the invention pertains Prior art (FIG. 11) Problems to be Solved by the Invention Means for Solving the Problems (1) Description of Overall Configuration (FIG. 1) (2) Mounting of Built-in Antenna Description of the structure (FIG. 1 to FIG. 1)
(2-1) Description of First Modification of Internal Antenna Mounting Structure (2-2) Description of Second Modification of Internal Antenna Mounting Structure (2-3) Third Modification of Internal Antenna Mounting Structure Description of Modification (3) Description of Rod Antenna Mounting Structure (FIG. 6)
9) (4) Supplementary explanation on how to attach the printed circuit board to the rear case (FIGS. 3, 4 and 10) (5) Other effects of the invention

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna holder mounting structure for holding a rod antenna provided in a portable telephone so as to be able to be pushed and pulled out.

[0003]

2. Description of the Related Art Conventionally, a portable telephone is equipped with a rod antenna which can be pushed into or pulled out of its housing (a box formed by a front case and a rear case) as a transmitting / receiving antenna. In addition, a built-in antenna is provided in the housing as a diversity antenna for reception.

The above-mentioned rod antenna and built-in antenna constitute a printed circuit board housed in the housing of the mobile phone (this printed circuit board constitutes a main part for transmission and reception processing of the mobile phone, such as a CPU and a memory). (Where components are mounted). The rod antenna is mounted on the rear case by screwing with a metal antenna holder mounted in the rear case, and the rod antenna is electrically connected to the printed circuit board via the metal antenna holder. It is to be connected.

[0005] The metal antenna holder is formed by casting, further processing the details, forming a screw thread or the like to be screwed with the rod antenna, and performing rust prevention treatment or the like. ing. For example, the rod antenna is inserted into a metal antenna holder 30 'fitted in the through hole 3'j of the rear case 3' shown in FIG. It can be mounted.

The upper surface of the antenna holder 30 'comes into contact with the printed circuit board, and the inside of the antenna holder 30' comes into contact with the rod antenna.
Has connected the printed circuit board and the rod antenna in a conductive state. As shown in FIG. 11, the antenna holder 30 'is formed in a substantially cylindrical shape, and has a through hole 30'c through which the rod antenna passes along the cylindrical axis. A threaded portion 30'f is formed on the insertion side portion of the rod antenna, and a portion of the through hole 30'c near the inside of the rear case 3 'restricts entry of the pipe 7' into the through hole 30'c. A pipe stopper rib 30'd is formed.

[0007] A flange 3 for abutting the antenna holder 30 'on the rear case 3' is provided on the inner end portion of the cylindrical shape.
0'b is formed. From the lower end of the flange 30'b, the antenna holder 30 'is connected to the rear case 3'.
Rib 3 for preventing rotation by engaging with rotation preventing portion 3'k
0'e is formed.

Further, a board contact portion 30'a for contacting the printed board is formed on the upper portion of the flange 30'b. Then, the rib 3 of the antenna holder 30 '
0′e is guided between the two rotation preventing portions 3′k of the rear case 3 ′, and the antenna holder 30 ′ is inserted into the through hole 3 ′.
j. At this time, the antenna holder 30 'is inserted into the through hole 3'j until the flange 30'b contacts the rear case 3'.

When the rod antenna hits another part or the like inside the portable terminal, the through hole 30'c of the antenna holder 30 'fitted in the through hole 3'j for attaching the holder of the rear case 3'. So that one end 7'a of the pipe 7 'guiding the passage is provided with a pipe stopper rib 30'.
It is inserted until it hits d. Also, for example, a pipe 7 '
When the other port 7'b hits a wall (not shown) in the portable terminal and the pipe 7 'is attached to the rear case 3',
The antenna holder 30 'is temporarily fixed to the rear case 3' and mounted.

The length of the pipe 7 'and the position of the pipe stopper rib 30'd formed on the surface of the through hole 30'c of the antenna holder 30' are determined by the antenna holder 30 '.
Is designed to be temporarily fixed to the rear case 3 '. Thereafter, the rod antenna is inserted into the through hole 3'j from the outside of the rear case 3 ', screwed into the threaded portion 30'f of the antenna holder 30', and mounted on the rear case 3 '.

The rod antenna is provided with a through hole 3'j for attaching a holder of the rear case 3 'and an antenna holder 3'.
0 'through the through hole 30'c and the pipe 7', the electrical contact of the rod antenna comes into contact with the surface of the through hole 30'c of the antenna holder 30 ', and the substrate contact 30'a By contacting the printed circuit board, the rod antenna, the antenna holder 30 'and the printed circuit board are brought into conduction.

[0012]

The conventional antenna holder 30 'described above is made of a metal, and after casting, a thread for screwing and mounting the rod antenna is processed, and a rust-proof treatment is performed. Therefore, there is a problem that a plating process is required to form an electrical contact, so that the cost is high, and since the product is a cast product, the product is heavy and cannot be finely worked.

The present invention has been created to solve such a problem, and eliminates processing such as thread processing.
It is an object of the present invention to provide a mobile phone antenna holder mounting structure that can be reduced in weight.

[0014]

Therefore, in the antenna holder mounting structure for a portable telephone according to the first aspect of the present invention, a resin antenna holder having a rod antenna through hole is formed in a case of the portable telephone. Attached so that it fits into the through hole for mounting the rod antenna,
The antenna contact portion of the circuit board portion for the mobile phone and the rod antenna inserted into the through hole of the rod antenna of the resin antenna holder are elastically contacted with each other to electrically connect the antenna contact portion and the rod antenna. A conductive elastic member is mounted on the resin antenna holder.

Further, the conductive elastic member includes a conductive gate-shaped main body, and a first conductive elastic part extending outwardly of the conductive gate-shaped main body and elastically contacting the antenna contact part. When,
A second conductive elastic portion extending inward from the conductive portal main body and capable of elastically contacting the rod antenna; and the resin antenna holder is provided with the rod antenna through hole. In addition to the above, the conductive elastic member may be provided with an elastic member mounting portion to which the conductive portal type main body portion can be mounted (claim 2).

Further, an engaging portion with the resin antenna holder is formed in the conductive portal-type main body of the conductive elastic member, and an engaged portion engageable with the engaging portion is provided. Preferably, the elastic member is formed on the elastic member mounting portion of the resin antenna holder. It is desirable that a locked portion that can be locked to a locking portion formed on the case of the mobile phone be formed on the resin antenna holder.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. (1) Description of Overall Configuration FIG. 1 is an exploded perspective view showing a mobile phone having an antenna holder mounting structure according to an embodiment of the present invention.
As shown in FIG. 1, the mobile phone 1 includes a front case 2 and a rear case 3, and a numeric keypad 5 and a printed circuit board are provided in a housing composed of the front case 2 and the rear case 3. 6 is mounted.

The numeric keypad 5 is provided with a number of buttons for inputting numbers, katakana, hiragana, alpha beds, etc., and a number of buttons for executing functions such as referring to call time and billing charges. A printed circuit board (a circuit board for a mobile phone) 6 has a printed circuit formed thereon, a component such as a CPU and a memory, which is a main part for transmission and reception processing of the mobile phone, a microphone 6g, a receiver 8, An LCD (liquid crystal display: liquid crystal display unit) 9 is provided on the printed circuit, and the numeric keypad 5 is mounted from above the printed circuit board 6 avoiding the receiver 8 or the LCD 9, so that the numeric keypad 5 is printed. The substrate 6 is electrically connected.

The receiver 8 and the microphone 6g are provided on the printed circuit board 6 and are electrically connected to the printed circuit board 6, and the LCD 9 displays characters, numerals, and the like on a display by a voltage effect. It is like
The packing 10 is tightly fixed on the LCD 9. Further, the LCD 9 with the packing 10 is provided so as to be aligned with the opening 2a formed in the front case 2 to the extent of the frame of the LCD 9, so that the LCD 9 can be seen from outside the housing.

The portion around the mouth 2a on the surface of the outer wall of the front case 2 is formed in a slightly recessed shape as compared with the other outer walls of the front case 2, and a recess covering the mouth 2a is formed. The LCD panel 11 made of a transparent resin is attached to the LCD 9 so that the LCD 9 can be seen through.
In addition, the front case 2 has an LED (light
emitting diode) 15 is also mounted.

Further, a rod antenna 14 functioning as a transmitting / receiving antenna is provided in the rear case 3.
It is attached so that it can be pushed in and out freely. That is, the rod antenna 14 provided with a contact portion whose both ends come into contact with a spring member 40 described later is inserted into the through hole 3-2 from the outer wall of the rear case 3 and attached to the through hole 3-2 of the rear case 3. The rod antenna 14 is attached to the rear case 3 by screwing the female screw portion of the antenna holder 30 and the male screw portion 14a-1 of the antenna attachment portion 14a.

The contact portion 14c of the rod antenna 14
Is guided in the antenna pipe 7 mounted on the rear case 3 and travels deeply or shallowly into the antenna pipe 7 so that the rod antenna 14
Can be pulled out or pushed in. In addition, a built-in antenna 20 that functions as a diversity antenna for reception is disposed on the bottom 3-1 of the inner wall of the rear case 3 shown in FIG.

Further, the rod antenna 14 and the built-in antenna 20 are electrically connected to the corresponding antenna contact portions formed on the printed circuit board 6, respectively. Further details will be described later. Note that reference numeral 6e shown in FIG.
e) A portion connected to a general-purpose personal computer or the like via a connector when performing communication or the like.
Usually, when not connected to a personal computer or the like, the connector cap 12 is fitted.

Reference numeral 6f denotes a connector terminal provided on the side wall of the printed circuit board 6 for connecting a connector of a headphone with a microphone.
Is provided at a position matching a mouth 3e formed as a hole through which a connector of a headphone with a microphone is inserted in a side wall of the rear case 3. The portion around the mouth 3e on the surface of the side wall of the rear case 3 is formed in a slightly recessed shape compared to the other outer walls of the rear case 3, and the mouth 3e is formed.
A cap 13 for preventing insertion of dust, foreign matter, and the like is mounted in a recessed portion so as to close the cover.

In the recessed portion of the side wall of the rear case 3, an opening 3f is formed as a hole into which the end 13a of the cap 13 is inserted, in addition to the opening 3e.
f, the end 13a of the cap 13 is inserted toward the inside of the housing, and the concave portion 13 formed on the end 13a of the cap 13 is formed on the convex portion (not shown) of the inner wall on the side surface of the rear case 3.
b is fitted so that the cap 13 is fixed so as not to be separated from the rear case 3.

Thus, the cap 13 can be bent outward with respect to the side of the rear case 3 around the mouth 3f as a fulcrum. At normal times, when the headphones with a microphone are not used, the mouth 3e is closed. Cover the cap to cover the headphone connector with microphone.
When the cap 13 is connected to the connector 6f, the cap 13 bends outward from the bent portion 13c, so that the upper side of the mouth 3e is opened, and the connector of the headphone with a microphone can be inserted.

As shown in FIG. 1, the portable terminal 1 has a rubber cushion 16, a receiver gasket 17, a speaker gasket 18, a soft shield 19, and submerged seals 19-1 and 19-2, in addition to the above-described components. Etc. are provided. Further, the screw 4 a is inserted into the fitting hole 3 formed in the rear case 3, the numeric keypad 5 and the printed circuit board 6.
a, 5a, and 6a, and screws 4a are screwed into screw holes (not shown) of the front case 2 so that the rear case 2 and the front case 3 are stored in a state where the numeric keypad 5 and the printed circuit board 6 are stored. Are assembled as one housing.

Hereinafter, the mounting structure of the built-in antenna 20 and the rod antenna 14 will be described separately. (2) Description of mounting structure of built-in antenna The built-in antenna 20 is, as described above, a rod antenna 1
4 is an antenna for performing diversity reception. FIG. 2 is a cross-sectional view of the built-in antenna 20 taken along the line II of FIG. 1, and FIG.

As shown in FIGS. 1, 2 and 5, the built-in antenna 20 has three spring portions (conductive elastic members) 21 electrically connected to the contact portions (built-in antenna contact portions) 6h of the printed circuit board 6. And an antenna section (built-in antenna main body) 22 for receiving a radio wave are formed as an integral member. First, the bottom surface of the antenna unit 22 (the surface opposite to the direction in which the spring unit 21 protrudes) is placed on a support base 3-1a that supports the built-in antenna 20 formed on the bottom 3-1 of the inner wall of the rear case 3. It is to be mounted.

Further, the three spring portions 21 are arranged in a state of being juxtaposed with each other.
As shown in FIG. 2, each spring portion 21 has two support portions 23 and 24, and a first spring portion (first elastic portion) formed with these support portions 23 and 24 as boundaries.
25 and a second spring portion (second elastic portion) 26, and is configured as a composite spring (composite elastic member) having a thickness of about 1/2 to 1/3 of the thickness of the conventional spring portion. I have.

Here, the first spring portion 25 is formed along the pressing direction on the contact portion 6h side from the first fulcrum portion 23 of the two fulcrum portions 23, 24 which is closer to the contact portion 6h of the printed circuit board 6. Have been. On the other hand, the second spring portion 26
Of the two fulcrum portions 23, 24, the second fulcrum portion 24 closer to the antenna portion 22 is formed so as to extend in a direction intersecting the pressing direction on the first fulcrum portion 23 side.

For example, the first spring portion 25 is formed by tilting the metal plate perpendicularly to the contact pressing direction or in the direction of rotation of the second spring portion 26 with the first fulcrum portion 23 as a reference. Further, the second spring portion 26 is configured to connect the metal plate to the second fulcrum portion 24.
Is formed so as to intersect the pressing direction with reference to. In the vicinity of the tip of the first spring portion 25, a contact 27 that can make electrical contact with the contact portion 6h of the printed circuit board 6 is formed, and the contact 27 smoothly and elastically contacts the contact portion 6h of the printed circuit board 6. The distal end of the spring portion 21 is formed by bending the distal end of the spring portion 21 into an inverted U-shape so as to be able to make contact with the spring portion 21. A sliding portion 28 having a tip bent to form a sliding contact is formed.

The built-in antenna 2 indicated by the symbol E in FIG.
The surface of No. 0 (part of the antenna section 22 and the spring section 21) is subjected to gold plating. On the other hand, as shown in FIG.
On the inner wall of the rear case 3, for example, three ribs 3g, 3
g, 3g are formed, and as shown in FIGS. 3 and 4, a guiding rib 3 h projecting upward from the bottom inside the rear case 3 toward the upper side where the printed circuit board 6 is mounted. , 3h, 3h, 3h are formed on the rear case 3, and between these four guide ribs 3h, 3
The two spring portions 21 are configured to be guided respectively. In FIG. 4, illustration of the rib 3g is omitted.

Also, the inner wall of the rear case 3
As shown in FIG. 7, a non-conductive sliding sheet 50 for assisting the sliding of each spring portion 21 and a cushion (cushion member) 60 are attached. Specifically, FIG.
As shown in FIG. 5, the side ends of the three ribs 3g shown in FIG.
A slide sheet 50 is attached so as to cover each,
When a force is applied to the contact 27 of each spring portion 21 in the pressing direction, each spring portion 21 is pushed down to the inner wall side with the rib 3g of the rear case 3 to slide the seat 50 and each spring portion 21.
And the slidable portion 28 can be in sliding contact. The slide sheet 50 is mounted on the rib 3g using, for example, a double-sided tape.

Further, a cushion 60 is mounted on the slide sheet 50, and when the printed circuit board 6 is mounted on the rear case 3, the contact 27 of each spring portion 21 is formed.
With the contact portion 6h of the rear case 3 and the contact portion 6h of the rear case 3, the U-shaped bottom portion 28a of the sliding portion 28 of each spring portion 21 does not lose the elastic properties of the cushion 60.
0 is contacted. Thus, the cushion 60 pushes up the bottom portion 28a of each spring portion 21 to assist the spring characteristics of each spring portion 21.

The cushion 60 is made of, for example, an elastic material containing air bubbles. The built-in antenna 20 configured as described above is attached to the rear case 3 by laminating the upper surface of the support 3-1a at the bottom inside the rear case 3 and the bottom surface of the antenna 20 using a double-sided tape or the like. However, assuming that there is no outer wall of the rear case 3, a virtual mounting example of each spring portion 21 is indicated by reference symbol A in FIG.

However, in actuality, when the sliding portion 28 of each built-in antenna 20 abuts on the sliding sheet 50, each spring portion 21 has the symbol A as shown by the symbol B in FIG.
The state is pushed up compared to the state shown by. Then, after that, the contact portion 6h of the printed circuit board 6 and each spring portion 2
When the printed circuit board 6 is pressed so that the first contact 27 is in contact with the first contact 27, the first spring portion 25 of the built-in antenna 20 becomes
It rotates counterclockwise in FIG. 5 about the fulcrum 24.

As described above, when the sliding portion 28 of each spring portion 21 comes into contact with the slide sheet 50, the first spring portion 25 generates an urging force for lifting the printed circuit board 6 upward. Meanwhile, the first spring portion 25 is returned in the illustrated clockwise direction around the first fulcrum portion 23. Further, at this time, the second spring portion 26 acts on the second fulcrum portion 24 as a reference to generate a force for pushing up the printed circuit board 6, and finally, each built-in antenna 20 is in a state indicated by reference symbol C in FIG. Leads to.

As described above, according to the mounting structure of the built-in antenna 20, the first spring 23, the second spring 24, the first spring 25, and the second spring 26 cooperate to form a composite spring. Demonstrate the characteristics. Conventionally, when installing the built-in antenna on the inner bottom surface of the rear case, a spring is formed on a part of the built-in antenna, and it is connected to the printed circuit board through this spring part, reducing the size and weight. Accordingly, if the thickness of the spring portion of the built-in antenna is also reduced, the spring portion will not be able to sufficiently exhibit the spring characteristics, and consequently a situation may occur in which the connection between the built-in antenna and the printed circuit board cannot be sufficiently performed. was there.

However, according to the built-in antenna 20, as described above, the combined spring characteristics are obtained in a small space with a thin spring portion 2.
1, because the printed circuit board 6 and the built-in antenna 20 can be reliably electrically connected. Further, since a sliding portion 28 slidable with respect to the rear case 3 of the mobile phone 1 is formed at the tip of the first spring portion 25 of each spring portion 21, the spring portion 21 is formed on the rear case 3. 3 can smoothly contact the inner wall of the rear case 3, thereby making it possible to reliably prevent a situation in which smooth movement between the distal end portion of the spring portion 21 and the inner wall surface of the rear case 3 hinders the spring characteristics from being exhibited.

Further, since the sliding sheet 50 is interposed between the rib 3g and the slid portion 28 of each spring portion 21, when the mobile phone 1 is dropped, etc. The sliding portion 28 is in sliding contact with the sliding sheet 50, so that spring displacement can be prevented. Further, a cushion 60 that elastically supports the distal end of each of the spring portions 21 that have been pressed and moved is attached to the inner wall of the rear case 3 of the mobile phone 1. The contact pressure between the slide board 27 and the slide substrate 6 can be backed up and compensated for, so that the thickness of the spring can be reliably reduced and the portable telephone 1 can be reduced in weight.

The three springs 21 and the antenna 22
Are formed as an integral member as a built-in antenna, the number of parts can be reduced, and the labor of assembling the device can be simplified. (2-1) Description of First Modification of Mounting Structure of Built-in Antenna In the above description, the sliding portion 28 of each spring portion 21 has been described.
Are in sliding contact with the slide sheet 50, but without the slide sheet 50,
8 may be configured such that the inner wall of the rear case 3 can be in direct sliding contact with the protruding rib 3g.

As described above, the sliding portion 28 of the spring portion 21
In the case where the rear case slides directly on the rib 3g, similar to the above, sufficient spring characteristics can be exhibited in a small space by reducing the weight and size of the rear case itself. (2-2) Description of Second Modification Example of Attachment Structure of Built-in Antenna Note that the built-in antenna 20 may be formed without forming the slidable portion 28 on each spring portion 21. Sliding part 2
Also in the built-in antenna 20 in which the 8 is not formed, the first fulcrum 23, the second fulcrum 24, the first spring 25, and the second spring 26 cooperate to exhibit a combined spring characteristic.
Due to the reduction in size and weight of the mobile phone 1, sufficient spring characteristics can be exhibited even in a small space and the thin spring portion 21, thereby securely connecting the printed circuit board 6 and the antenna portion 22 electrically. it can.

(2-3) Third mounting structure of built-in antenna
Description of Modification Examples Further, each of the spring portions 21 and the antenna portion 22 may be formed separately from each other.
An end point (29 shown in FIG. 2) on the side of the fulcrum portions 23 and 24 from the contact point 27 is fixed to the antenna section 22. Even in this case, the first fulcrum portion 23, the second fulcrum portion 24, the first spring portion 25, and the second spring portion 26 of each spring portion 21 cooperate in a small space, and a combined spring characteristic is obtained. The contact 27 of the spring portion 21 can be reliably and electrically connected to the printed circuit board 6 or the built-in antenna 6. As a result, it is possible to avoid inconvenience that conventionally sufficient spring characteristics could not be obtained due to downsizing and weight reduction.

(3) Description of Rod Antenna Mounting Structure As described above, the rod antenna 14 is fitted into the through hole (rod antenna mounting through hole) 3-2 of the rear case 3 as shown in FIG. Is inserted into the resin antenna holder (resin antenna holder) 30 so that the antenna holder 30 can be pushed into or pulled out of the rear case 3. Further, the antenna holder 30 is provided with a metal spring member (conductive member). The rod antenna 14 is electrically connected to the contact portion (antenna contact portion) 6i of the printed circuit board 6 via the spring member 40.

Hereinafter, the mounting structure of the rod antenna 14 via the antenna holder 30 with the spring member 40 will be described in detail. First, the antenna holder 30 shown in FIG.
As shown in FIG.
And a spring mounting portion (elastic member mounting portion) 31 integrated with the holder main body 30A. The antenna holder 30 is formed by resin molding.

The holder main body 30A has a through hole (rod antenna through hole) through which the rod antenna 14 passes.
A female screw portion 37 is formed in a portion of the through hole 32 on the insertion side of the rod antenna 14, and a through hole of the antenna pipe 7 is formed in a portion of the through hole 32 closer to the inside of the rear case 3. A stopper rib 33 for restricting entry into the stopper 32 is formed.

A stopper 36 extending in the longitudinal direction is provided on the outer side of the insertion portion of the holder body 30A into the through hole 3-2.
Are formed at intervals along the circumferential direction of the holder main body 30A. Further, the antenna holder 30 is attached to the rear case 3 at the inner end portion of the insertion part of the holder main body 30A into the through hole 3-2. A flange 39 to be abutted is formed.

From the lower end of the flange 39, a temporary fixing portion (locking portion) 38 for temporarily fixing the antenna holder 30 by engaging with a convex portion 3i (described later) of the rear case 3 is provided. 3 are provided so as to extend inward. Further, a groove 31b and a hollow portion 31a are formed in the joint between the holder main body 30A and the spring mounting portion 31 along the longitudinal direction.

That is, the spring mounting portion 31 has a pair of erected portions 34, 34 erected on both sides of the hollow portion 31a formed above the groove 31b. Also, the spring mounting part 31
Spring plate engaging portions (engaged portions) 34a for engaging the spring members 40 are respectively provided on the upright wall portions of the upright portions 34, 34.
Are formed, and guide grooves (engaged portions) 35, 35 for guiding the fitting direction when the spring member 40 is mounted are formed in the lower edges of the upright portions 34, 34. I have.

Further, the spring member 40 mounted on the spring mounting portion 31 is configured such that the contact portion 6i of the printed circuit board 6 and the rear case 3
The contact portion 6i and the rod antenna 14 are made of a conductive and thin pressure metal plate so as to make elastic contact with the rod antenna 14 inserted through the through hole 32 so as to electrically connect the contact portion 6i and the rod antenna 14. . Specifically, as shown in FIG. 7, the spring member 40 covers the side and top surfaces of the upright portions 34, 34 in the spring mounting portion 31 when the antenna holder 30 is mounted on the spring mounting portion 31. And a gate-shaped portion (conductive gate-shaped main body) 41 bent into a gate-shaped shape. The width of the gate-shaped portion 41 is formed to be substantially the same as the width of the spring mounting portion 31 of the antenna holder 30. ing.

The standing portion 3 of the spring mounting portion 31
Bent portions (engaging portions) 46, 46, which are engaged with the guide grooves 35, 35 of the antenna holder 30 and are guided in mounting, are provided on both side surfaces of the gate-shaped portion 41 which can be in contact with the outer walls of the antenna 4 and 34. It is formed so that it can be bent from the middle of the side. In addition, square holes (engaging portions) 44, 44 that engage with spring plate engaging portions 34 a formed on the side surfaces of the standing portions 34, 34 are formed on each side surface of the gate-shaped portion 41. .

Further, a substrate contact spring (first conductive elastic portion) 42 that elastically contacts the contact portion 6i of the printed circuit board 6.
As shown in FIG. 7, it is formed to extend outward from the portal 41 and is bent in a U-shape to have spring characteristics. In addition, the tip of the board contact spring 42 that contacts the contact portion 6i of the printed board 6,
A convex portion 42a is formed on the surface in contact with i by being slightly raised from the surface of the tip portion.

The prevention part 45 for preventing the spring from being bent deeply by the force of the substrate contact spring 42 coming into contact with the printed circuit board 6 and being pressed from above is provided by the portal part 41.
Is formed by cutting a notch in the upper surface of the sheet and bending it outward. On the other hand, as shown in FIG. 7, the antenna contact spring portion (second conductive elastic portion) 43 that contacts the rod antenna 14 is formed so as to extend inward from the portal portion 41, and two It is bent with reference to a fulcrum to have spring characteristics.

The shaded portion (from the tip of the substrate contact spring 42 to the tip of the antenna contact spring 43) indicated by the symbol D in FIG. 7 is subjected to gold plating.

In order to attach the spring member 40 to the antenna holder 30 by the above-described configuration, the bent portions 46, 46 of the spring member 40 are first fitted to the guide grooves 3 of the antenna holder 30.
The spring member 40 is fitted into the antenna holder 30 from the back of the spring member 40 so that the guides 5 and 35 guide.
At this time, the spring plate engaging portions 34a formed on the side surface of the spring mounting portion 31 engage with the square holes 44 formed on the side surface of the spring member 40, respectively. It is mounted and fixed to the antenna holder 30.

The antenna holder 30 on which the spring member 40 is mounted is connected to the through hole 3-2 formed in the rear case 3.
Inserted into At the time of this insertion, a stopper 36 formed on the insertion side of the holder main body 30A into the through hole 3-2,
Stopper guide groove 3- formed in the surface of through hole 3-2
2a (see FIG. 9) so that the antenna holder 3
0 is inserted into the through hole 3-2 of the rear case 3.

As shown in FIG. 8, in the antenna holder 30, the flange 39 formed on the side surface of the antenna holder 30 has an inner wall of the rear case 3 and an end 3-2b of the through hole 3-2 (see FIG. 8). 9) Insert until it hits the surface.
Then, when the antenna holder 30 is pulled out from the through hole 3-2, the tip of the temporary fixing portion 38 comes into contact with the convex portion 3i (locking portion) formed on the inner wall of the rear case 3, and the antenna holder 30 Temporarily fixed to the rear case 3.

After that, one port 7a of the antenna pipe 7 is inserted into the through hole 32 of the antenna holder 30 mounted on the rear case 3 until it hits a stopper rib 33 formed on the surface of the through hole 32 of the antenna holder 30. You.
The other end 7b of the antenna pipe 7 is fixed in contact with the inner wall of the rear case 3 (not shown).

The antenna mounting portion 14a of the rod antenna 14 is inserted into the through hole 3-2 from outside the rear case 3, and the male screw portion 14a-1 of the antenna mounting portion 14a is inserted into the through hole 32 of the antenna holder 30. The rod antenna 14 is attached to the rear case 3 by being screwed with the female screw portion 37 formed on the surface. And the antenna holder 3
0, rear case 3 with rod antenna 14, etc.
Then, the printed circuit board 6 is mounted.

When the rod antenna 14 is pulled out of the mobile phone 1, as shown in FIG. 8, a metal contact portion 14c provided at an end of the rod antenna 14 is formed.
Contact the antenna mounting portion 14a. As shown in FIG. 8, the antenna mounting portion 14a is
The antenna contact spring 43 of the spring member 40 is attached to the outer wall of the antenna mounting portion 14a in a state where the spring 43 is attached to the through hole 32 of the antenna.
Are pushed upward and make elastic contact with the spring pressure.

Further, the contact spring 4 for the substrate of the spring member 40 is provided.
2 is pushed down to the antenna holder 30 side and makes elastic contact with the contact portion 6i of the printed circuit board 6 by spring pressure. Thus, the contact portion 14 between the printed board 6 and the rod antenna 14
c is in a state of being electrically conducted through the spring member 40 and the antenna mounting portion 14a. Also, the contact portion 14
When c enters deep into the antenna pipe 7, another contact portion (not shown) provided at the end opposite to the contact portion 14c of the rod antenna 14 comes into contact with the antenna mounting portion 14a, and the printing is performed in the same manner as described above. The substrate 6 and the other contact portion of the rod antenna 14 are connected to the spring member 40 and the antenna mounting portion 14a.
, The state becomes electrically conductive.

According to the mounting structure of the antenna holder 30 of the mobile phone 1 according to the present embodiment configured as described above,
The spring member 40 is inserted into the antenna holder 30 and temporarily fixed, and the antenna holder 30 is inserted into the rear case 3 and temporarily fixed, and the male screw portion 14a-1 of the antenna mounting portion 14a is formed.
The rod antenna 14 and the printed circuit board 6 are electrically connected by a simple mounting operation of screwing the female screw portion 37 of the antenna holder 30 (see FIG. 1) with the female screw portion 37.

The conventional metal antenna holder is
After casting, it requires thread processing for screwing and mounting the rod antenna, rust prevention treatment, and plating treatment for forming electrical contacts, and is a high cost cast product. However, the present antenna holder 30
Unlike a conventional antenna holder, the antenna holder is formed of a resin mold so that it can be easily manufactured at low cost, integrally formed with fine work, and the weight can be reduced.

In addition, the use of a mold makes the cost lower than that of a metal casting, and the addition of a temporary fixing structure makes it easy to divide the work, which can contribute to an improvement in mass productivity. (4) Supplementary explanation on how to attach the printed board to the rear case As described above, the built-in antenna 20 and the rod antenna 14
Is provided on the rear case 3 side, and the printed circuit board 6 is mounted on the rear case 3, thereby electrically connecting the built-in antenna 20 and the printed circuit board 6 and connecting the rod antenna 14 to the antenna holder 30 with the spring member 40. Although it is electrically connected to the printed circuit board 6 through the interposition, the spring members 40 for connecting the rod antenna 14 and the printed circuit board 6 are attached by the urging force on the printed circuit board 6 by the three spring portions 21 with the built-in antenna 20. Since the power is set stronger, the rear case 3 side is devised to mount the printed circuit board 6 to the rear case 3 in a well-balanced manner.

That is, as shown in FIGS. 3, 4, and 10, a pair of claws 71 and 72 are formed on the upper edge of the inner wall surface of the rear case 3 so as to face each other. In this case, the distance L1 between the claw 71 and the spring member 40 is equal to the distance L between the claw 72 and the spring portion 21.
2 (this L2 is exactly the distance between the claw 72 and the equivalent spring when it is assumed that there is an equivalent spring having the same strength as the three spring portions 21).

When the printed circuit board 6 is attached to the rear case 3, the spring portion 21 and the spring member 40 are pressed from above, and the printed circuit board 6 is engaged with the claws 71 and 72. At this time, the urging force by which the spring portion 21 and the spring member 40 push up the printed circuit board 6 is transmitted to the rear case 3 via the claws 71 and 72, but the claws 71 and 72 are Therefore, the claw 71 supports a stronger force than the claw 72.

However, the urging force of the spring member 40 is less than three.
Since it is stronger than the urging force of the two spring portions 21, the printed circuit board 6 can be mounted on the rear case 3 in a well-balanced manner. (5) Others In addition to the above description, the present invention can be implemented in various forms without departing from the spirit of the invention.

[0069]

As described in detail above, according to the antenna holder mounting structure for a portable telephone according to the first aspect of the present invention,
A resin antenna holder having a rod antenna through hole is attached so as to fit into a rod antenna mounting through hole formed in a mobile phone case, and a conductive elastic member is attached to the resin antenna holder. Then, the antenna contact portion of the mobile phone circuit board portion and the rod antenna inserted into the rod antenna through hole of the resin antenna holder are elastically contacted with each other to electrically connect the antenna contact portion and the rod antenna. Since it is configured to be able to be in a conductive state, the processing required for the antenna holder made of conventional aluminum or the like can be omitted, and the resin antenna holder itself is molded with the resin, so that the mobile phone can be reliably used. The weight can be reduced.

Further, according to the antenna holder mounting structure for a portable telephone according to the second aspect, the conductive gate-shaped main body of the conductive elastic member is connected to the conductive elastic member of the elastic member mounting portion of the resin antenna holder. At the same time, the first conductive elastic portion extends outwardly of the conductive portal type main body portion to elastically contact the antenna contact portion, and the second conductive elastic portion is connected to the conductive portal type body. By extending inward from the main body and making elastic contact with the rod antenna, the rod antenna and the circuit board for mobile phone can be reliably brought into conduction.

Further, according to the antenna holder mounting structure for a portable telephone according to the third aspect, the engaging portion of the conductive elastic member is engaged with the engaged portion of the resin antenna holder, so that the resin is formed. By preventing the conductive elastic member from separating from the antenna holder, a conductive state between the rod antenna and the mobile phone circuit board can be reliably ensured. According to the antenna holder mounting structure for a mobile phone according to the fourth aspect, the locked portion of the resin antenna holder can be locked by the locking portion formed on the case of the mobile phone. As in the case of the antenna holder described above, the trouble of temporarily fixing the antenna holder in advance by using an antenna pipe can be omitted, so that the resin antenna holder can be easily attached to the mobile phone case. As a result, the work of assembling the mobile phone can be speeded up.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a mobile phone having an antenna holder mounting structure according to an embodiment of the present invention.

FIG. 2 is a sectional view of a built-in antenna.

FIG. 3 is a partial plan view showing a state of an inner wall of a rear case.

FIG. 4 is a partial perspective view showing a rear case.

FIG. 5 is a view showing a partial cross section of a rear case.

FIG. 6 is a perspective view showing an antenna holder according to one embodiment of the present invention.

FIG. 7 is a perspective view showing a spring member according to one embodiment of the present invention.

FIG. 8 is a cross-sectional view showing a structural example in which an antenna holder with a spring member according to an embodiment of the present invention is mounted on a rear case together with an antenna mounting portion and a printed circuit board.

FIG. 9 is an exploded perspective view showing a part of the inside of the rear case.

FIG. 10 is a sectional view of a rear case.

FIG. 11 is an exploded perspective view showing a part of the inside of a conventional mobile phone.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 mobile phone 2 front case 2a mouth 3 rear case (telephone case) 3a, 5a, 6a joint hole 3e, 3f mouth 3g rib (rib) 3h guide rib 3i convex portion (locking portion) 3-1a support Stand 3-2 Through-hole (through-hole for mounting rod antenna) 4a Screw 5 Numeric keypad 6 Printed circuit board (circuit board part for mobile phone) 6g Microphone 6h, 6i Contact part (antenna contact part) 7 Antenna pipe 8 Receiver 9 LCD 10 LCD packing 11 LCD panel 12 Connector cap 13 Cap 13a End 13b Recess 13c Bend 14 Rod antenna 14a Antenna mounting 14a-1 Male thread 14c Contact 15 LED panel 16 Rubber cushion 17 Receiver gasket 18 Speaker gasket 19 Soft shield 1 9-1, 19-2 Submerged seal 20 Built-in antenna 21 Spring part (conductive elastic member: composite elastic member) 22 Antenna part (Built-in antenna main body) 23 First fulcrum part 24 Second fulcrum part 25 First spring part (No. 1 elastic part) 26 second spring part (second elastic part) 27 contact 28 sliding part 28a bottom part 29 end point 30 antenna holder (resin antenna holder) 30A holder body 31 spring mounting part (elastic part mounting part) 31a hollow Part 32 Through-hole (rod antenna through-hole) 33 Stopper rib 34 Standing part 34a Spring plate engaging part (engaged part) 35 Guide groove (engaged part) 36 Stopper 37 Female screw part 38 Temporary fixing part ( Locked portion) 39 Flange 40 Spring member (conductive elastic member) 41 Gate type (conductive gate type main body) 42 Spring for substrate contact (first conductive elastic portion) 43 Antenna Contact spring (second conductive elastic portion) 44 square hole (engaging portion) 45 preventing portion 46 bent portion (engaging portion) 50 sliding seat (slide assist member) 60 cushion (cushion member) 71, 72 claw

Continued on the front page (72) Inventor Hisamitsu Takagi 4-1-1, Kamidadanaka, Nakahara-ku, Kawasaki-shi, Kanagawa Prefecture Inside Fujitsu Limited (72) Inventor Kazunori Kato 4-1-1, Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa F term in Fujitsu Limited (reference) 5J047 AA07 AA19 AB06 FA02 FA09 FD01 5K011 AA06 JA01 LA07

Claims (4)

[Claims] 1. A resin antenna holder having a rod antenna through hole formed therein is mounted so as to fit into a rod antenna mounting through hole formed in a case of a mobile phone. A conductive elastic member capable of elastically contacting the antenna contact portion and the rod antenna inserted into the rod antenna through hole of the resin antenna holder to electrically connect the antenna contact portion and the rod antenna to each other is provided. An antenna holder mounting structure for a mobile phone, wherein the antenna holder mounting structure is mounted on the resin antenna holder. 2. The conductive elastic body includes a conductive portal body and a first conductive elastic section extending outwardly of the conductive portal body and elastically contacting the antenna contact. And a second conductive elastic portion extending inward from the conductive portal-shaped main body portion and capable of elastically contacting the rod antenna. 2. The antenna holder mounting for a mobile phone according to claim 1, further comprising an elastic member mounting portion capable of mounting the conductive gate-shaped main body portion of the conductive elastic member in addition to the through hole. Construction. 3. An electrically conductive gate-shaped main body portion of the conductive elastic member has an engagement portion with the resin antenna holder, and the engagement portion is engaged with the elastic member mounting portion of the resin antenna holder. 3. The antenna holder mounting structure for a mobile phone according to claim 2, wherein an engaged portion capable of engaging with said portion is formed. 4. The mobile phone according to claim 1, wherein said resin antenna holder is provided with a locked portion which can be locked to a locking portion formed on a case of said mobile phone. An antenna holder mounting structure for a mobile phone according to any one of the preceding claims.