JP4461881B2 - Communication terminal device and assembly method thereof - Google Patents

Description

  The present invention relates to a communication terminal device and an assembling method thereof, and more particularly to a sub-antenna mounting structure for a mobile phone.

  FIG. 7 is an exploded view for explaining a sub-antenna mounting structure of a cellular phone according to a conventional example.

  Referring to FIG. 7, the first casing 71a and the second casing 72a are overlapped to form one casing. One surface of the sub-antenna 74 is bonded to the first housing 71a side using a double-sided adhesive tape. A circuit board 72 is attached to the second housing 71b side. On the circuit board 72, a contact component 74a having a spring property is soldered. During assembly, the first housing 71a to which the sub-antenna 74 is bonded is superposed on the second housing 71b, so that the sub-antenna 74 comes into contact with the contact component 74a and the sub-antenna 74 and the circuit board 72 are electrically connected. Is planned.

  In Patent Document 1, the convex portion of the housing is press-fitted into a mounting hole formed in the longitudinal direction of the plate-like built-in antenna, and the plate-like built-in antenna is fixed to the housing by another lock claw. A cordless telephone is disclosed in which an elastic portion provided at a base portion of a built-in antenna is coupled to an electrical contact of a printed circuit board built in a housing.

JP2000-114832 (paragraph 0023, FIG. 2)

  The cellular phone sub-antenna mounting structure according to the conventional example shown in FIG. 7 has a demerit that the number of parts such as the contact parts 74a is large and affects the cost.

  Further, the mounting structure of the plate-like built-in antenna in the cordless telephone of Patent Document 1 has a problem that the contact between the elastic portion and the electrical contact of the printed circuit board is unstable.

  It is an object of the present invention to provide a communication terminal apparatus having an antenna mounting structure that can mount an antenna with a small number of parts and a high holding force, and that can stabilize electrical contact between the antenna and a circuit board, and an assembling method thereof. Objective.

In a first aspect, the present invention provides a housing, an antenna built in the housing and having elasticity, a circuit board built in the housing, a circuit pattern formed on the circuit board, A hole formed in the antenna; an boss for mounting the antenna that fits into the hole while elastically deforming the hole; and at least a part of the antenna is bent and bent. A contact portion that makes electrical contact with the circuit pattern at a predetermined pressure, and the boss protrudes from the hole and has a predetermined clearance from the inside of the curved portion of the antenna. There is provided a communication terminal device which is set to face each other and the boss serves as a stopper portion which defines a deformation limit of the curved portion .

According to a second aspect of the present invention, the first casing and the second casing are overlapped to form the casing of the communication terminal device, and the casing is provided with a hole and a curved contact portion to provide elasticity. A method of assembling a communication terminal apparatus incorporating an antenna having an antenna, wherein the antenna is attached to the first casing by fitting the hole of the antenna with a boss provided in the first casing with pressure. Accordingly, the boss protrudes from the hole and is set to face the inside of the curved contact portion of the antenna with a predetermined clearance, and on the circuit board built in the second casing. By superimposing the first housing and the second housing such that the curved contact portion of the antenna comes into contact with the circuit pattern with pressure , the boss becomes the curved contact portion. Specifies the deformation limit of And a step of the stopper portion, to provide an assembly method of a communication terminal apparatus, characterized in that.

According to the present invention, a hole is formed in an antenna built in the housing, and a boss is formed on the housing side so as to push the hole, thereby preventing the antenna from being restrained by double-sided tape or other parts. It becomes possible to attach to. Furthermore, according to the present invention, by utilizing the spring property of the antenna material and bringing the portion that is structurally highly springy into contact with the circuit board, the antenna and the antenna can be provided without providing a special member on the circuit board side. Contact with the circuit board is ensured. Ultimately, according to the present invention, the mounting of the antenna to the housing and the electrical connection of the antenna to the circuit board utilize the elasticity and structure of the antenna material, so that only the antenna and the electrical connection are related. Is also achieved without the use of separate components. Further, the height of the boss on the housing side is considered so that the antenna stops within elastic deformation when the antenna contacts the circuit pattern.

  According to a preferred embodiment of the present invention, the hole is formed in an intermediate portion of the antenna that is deformed in a wave shape, and the contact portion is formed at a tip of the antenna.

  According to a preferred embodiment of the present invention, the boss protrudes from the hole and is set to face the inside of the curved portion of the antenna with a predetermined clearance, and the boss is the curved portion. This is the stopper that defines the deformation limit. That is, the height of the boss on the housing side is considered so that the antenna stops within elastic deformation when the antenna contacts the circuit pattern.

  According to a preferred embodiment of the present invention, the antenna has a notch that is formed around the hole or close to the hole and increases the degree of deformation of the hole. As a result, a sufficient holding force is required for mounting the antenna.

  According to a preferred embodiment of the present invention, the notches are a pair of notches formed to face each other with the hole interposed therebetween.

  A preferred embodiment of the present invention is characterized in that a plurality of the holes and the bosses are provided.

  According to a preferred embodiment of the present invention, the plurality of holes are composed of a plurality of elongated holes extending in directions orthogonal to each other.

  According to a preferred embodiment of the present invention, one of the plurality of elongated holes is a fitting hole for positioning the antenna in the width direction of the antenna, and the other elongated hole is the antenna. This is a stopper hole for positioning in the longitudinal direction of the antenna.

According to a preferred embodiment of the present invention, the plurality of holes are a pair of holes facing in the width direction of the antenna, and a notch for increasing the degree of deformation of the holes is formed between the pair of holes. . Preferably, than clear width of the pair of holes, clear width of a pair of bosses which fit into the pair of holes being narrower.

  To describe the present invention in more detail, an embodiment of the present invention will be described below with reference to the accompanying drawings.

  1A to 1C are division views of a communication terminal device according to an embodiment of the present invention. FIG. 1A is a first housing, and FIG. FIG. 1C shows a sub antenna.

  Referring to FIGS. 1A to 1C, the first housing 1a is provided with a boss 3 for attaching a sub antenna 4 having elasticity. A circuit board 2 is attached to the second casing 1b. The casing of the communication terminal device is assembled by superimposing the first casing 1a and the second casing 1b, and the circuit board 2 on which the sub-antenna 4 and the transmission / reception circuit and the like are mounted is incorporated.

  An intermediate portion of the sub-antenna 4 is deformed into a wave shape, and a hole 4a is formed in the intermediate portion. The tip of the sub-antenna is curved, and the outside of the curved portion becomes a contact portion 4c that makes electrical contact with the circuit pattern 2a on the circuit board 2 with a predetermined pressure.

  Furthermore, the attachment state of the sub-antenna 4 and the contact state between the sub-antenna and the circuit board will be described.

  2A is a diagram illustrating a state in which the sub antenna illustrated in FIG. 1C is attached to the first housing illustrated in FIG. 1A, and FIG. It is an arrow A enlarged view of A).

  Referring to FIGS. 2A and 2B, when attaching the sub antenna 4 to the first housing 1a, the hole 4a of the sub antenna 4 is formed in the boss 3 provided in the first housing 1a. Mates with pressure. The hole diameter of the hole 4a is formed smaller than the outer diameter of the boss 3, and the sub antenna 4 has elasticity. Thereby, the sub-antenna 4 is attached to the first housing 1a with a predetermined holding force. Preferably, as shown in FIG. 2B, a pair of notches 6a and 6b extending in the longitudinal direction of the sub-antenna 4 is formed around the hole 4a, so that the hole 4 is deformed when the boss 3 is inserted. The amount can be increased to further increase the holding force.

  Next, the contact state between the sub-antenna 4 and the circuit pattern 2a on the circuit board 2 shown in FIG. 1B will be described.

  A circuit board 2 is attached to the second housing 1b shown in FIG. 1B, and a circuit pattern 2a is formed on the circuit board 2 at a position where the contact portion 4c of the sub antenna contacts during assembly. ing. When the first casing 1a and the second casing 1b are overlapped, the curved contact portion 4c of the elastic sub-antenna 4 contacts the circuit pattern 2a on the second casing 1b side with a predetermined pressure. To do. Sufficient contact pressure can be obtained because the sub-antenna 4 is a material having elasticity and the contact portion 4c is formed at the curved tip.

  FIG. 3 is a partial view of a communication terminal device according to a preferred embodiment of the present invention based on the first embodiment, and shows a state in which the boss serves as a stopper portion that defines the deformation limit of the curved portion of the sub-antenna. It is.

  Referring to FIG. 3, the boss 3 provided on the first housing 1 a side protrudes from the hole 4 a of the sub-antenna 4 in the assembled state, and the inside of the curved portion of the sub-antenna 4 or the contact portion 4 c. It is set to face the back side with a predetermined clearance L.

  According to this embodiment, the boss 3 serves as a stopper portion that defines the deformation limit of the curved portion of the sub antenna 4 or the contact portion 4c. That is, the height of the boss 3 on the housing side is considered so that the sub antenna 4 stops within elastic deformation when the sub antenna 4 contacts the circuit pattern 2a.

  According to a preferred embodiment of the present invention, the antenna has a notch that is formed around the hole or close to the hole and increases the degree of deformation of the hole. As a result, a sufficient holding force is required for mounting the antenna.

  FIG. 4 is a diagram for explaining preferred shapes of holes and notches of the sub-antenna according to the second embodiment of the present invention.

  Referring to FIG. 4, the notches are a pair of notches 6a and 6b formed to face each other with the hole 4a of the sub-antenna 4 as shown in FIG. The pair of notches 6a and 6b are formed so as to face each other along the longitudinal direction of the sub-antenna 4 in the first embodiment, but are formed so as to face each other along the width direction of the sub-antenna 4 in this embodiment. ing. Moreover, the hole diameter of the hole 4a is formed smaller than the boss diameter inserted in the hole 4a.

  In this way, by forming the notches 6a and 6b around the hole 4a or close to the hole 4a, the deformation of the hole 4a when the boss 3 as shown in FIG. 1A is inserted into the hole 4a. The degree of holding is increased, and the holding force required for mounting the sub-antenna 4 is further sufficiently secured.

  FIG. 5 is a diagram for explaining a configuration according to the third embodiment of the present invention in which a plurality of holes and bosses for attaching a sub antenna are provided.

  Referring to FIG. 5, a plurality of bosses, that is, a fitting boss 13a and a stopper boss 13b are formed on the first housing 1a side as shown in FIG. On the other hand, the sub-antenna 14 has a plurality of holes, that is, a fitting hole 14a and a stopper hole 14b.

  The fitting hole 14a is a long hole extending along the longitudinal direction of the sub-antenna 14, and the stopper hole 14b is a long hole extending along the width direction of the sub-antenna 14, both holes being orthogonal to each other. It extends in the direction you want.

  At the time of assembly, the sub-antenna 14 is positioned in the width direction by fitting the cylindrical fitting boss 13a into the fitting hole 14a. On the other hand, the sub-antenna 14 is positioned in the longitudinal direction by fitting the rectangular boss 13b for stopper into the stopper hole 14b.

  FIG. 6 is a diagram for explaining a configuration according to the fourth embodiment of the present invention in which the outside of the sub antenna is used as an attachment portion.

  Referring to FIG. 6, a pair of holes facing each other in the width direction, that is, a first hole 24 a and a second hole 24 b are formed on the outer side or edge of the sub antenna 24. A notch 26 is formed between the first hole 24a and the second hole 24b to increase the degree of deformation of both holes. The notch 26 extends in the longitudinal direction of the sub-antenna 24.

A pair of first holes 24a and a second hole 24b which are provided closer to the first housing 1a as shown in FIG. 1A than the inner width (b) of the second hole 24b and fit into both holes. The internal width (a) of the boss, that is, the first boss 23a and the second boss 23b is narrowed (a <b) . As a result, the sub antenna 24 is stably held while being sandwiched between the first boss 23a and the second boss 23b.

  The present invention is suitably applied to mobile phones, other mobile communication terminal devices, and methods for manufacturing them.

(A)-(C) are the division | segmentation diagrams of the communication terminal device which concerns on one Example of this invention. (A) is a figure which shows the state which attached the subantenna shown in FIG.1 (C) to the 1st housing | casing shown to FIG. 1 (A), (B) is an arrow A view of (A). It is an enlarged view. It is a fragmentary figure of the communication terminal device concerning the preferred example of the present invention, and is a figure showing signs that a boss serves as a stopper part which prescribes a deformation limit of a curved part of a subantenna. It is a figure for demonstrating the preferable shape of the hole and notch of a subantenna concerning Example 2 of this invention. It is a figure for demonstrating the structure which concerns on Example 3 of this invention and provided the hole and boss | hub for attaching a subantenna. It is a figure for demonstrating the structure which concerns on Example 4 of this invention, and made the outer side of the subantenna the attachment part. It is a figure for demonstrating the attachment structure of the subantenna which concerns on a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a 1st housing | casing 1b 2nd housing | casing 2 Circuit board 2a Circuit pattern 3 Boss 4 Subantenna 4a Hole (fitting part)
4c Contact part (curved part)
6a, 6b Notch 13a Fitting boss 13b Stopper boss 14 Subantenna 14a Fitting hole 14b Stopper hole 23a First boss 23b Second boss 24 Subantenna 24a First hole (fitting portion)
24b Second hole (fitting part)
26 Notch L Clearance a Internal width b of the first and second bosses 23a, 23b Small diameter (width) of the notch 26

Claims (11)

A housing,
An antenna built in the housing and having elasticity;
A circuit board built in the housing;
A circuit pattern formed on the circuit board;
A hole formed in the antenna;
The antenna mounting boss that is provided inside the housing and fits into the hole while elastically deforming the hole;
A contact portion in which at least a part of the antenna is curved and an outside of the curved portion is in electrical contact with the circuit pattern with a predetermined pressure;
Have
The boss protrudes from the hole and is set to face the inside of the curved portion of the antenna with a predetermined clearance,
The communication terminal apparatus, wherein the boss serves as a stopper portion that defines a deformation limit of the curved portion.   2. The communication terminal device according to claim 1, wherein the hole is formed in an intermediate portion of the antenna that is deformed in a wave shape, and the contact portion is formed at a tip of the antenna. The communication terminal apparatus according to claim 1 or 2 , wherein the antenna has a notch that is formed around the hole or in the vicinity of the hole and increases a degree of deformation of the hole. 4. The communication terminal apparatus according to claim 3 , wherein the notches are a pair of notches formed to face each other with the hole interposed therebetween. Communication terminal device according to any one of claims 1-4, characterized in that the hole and the boss is provided with a plurality. The communication terminal apparatus according to claim 5 , wherein the plurality of holes are configured by a plurality of long holes extending in directions orthogonal to each other. Of the plurality of elongated holes, one elongated hole is a fitting hole for positioning the antenna in the width direction of the antenna, and the other elongated hole is a stopper hole for positioning the antenna in the longitudinal direction of the antenna. The communication terminal device according to claim 6, wherein: 6. The communication according to claim 5 , wherein the plurality of holes are a pair of holes facing in the width direction of the antenna, and a notch is formed between the pair of holes to increase the degree of deformation of the holes. Terminal device. Than said clear width of the pair of holes, the communication terminal apparatus according to claim 8, wherein the clear width of the pair of bosses to be fitted into the pair of holes being narrower. The communication terminal device is a mobile telephone, the communication terminal apparatus according to any one of claims 1-9, characterized in that said antenna is a sub antenna. An assembly of a communication terminal device comprising a housing of a communication terminal device by overlapping a first housing and a second housing, and having a resilient contact antenna with a hole and a curved contact portion in the housing. A method,
By fitting the hole of the antenna to a boss provided in the first housing with pressure and attaching the antenna to the first housing , the boss protrudes from the hole, and the antenna A step that is set to face the inside of the curved contact portion with a predetermined clearance ;
The first casing and the second casing are overlapped so that the curved contact portion of the antenna comes into contact with a circuit pattern on a circuit board built in the second casing with pressure. The boss becomes a stopper portion that defines a deformation limit of the curved contact portion ;
A method of assembling a communication terminal device, comprising:

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