JP2014011742A - Portable terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure the waterproof reliability and concurrently reduce the number of components without impairing the appearance.SOLUTION: An antenna housing part 12 having a partition wall 11 enclosing an antenna 9 is provided at a rear surface side cabinet 4 (a housing) having an antenna insertion hole 10 exposing the antenna 9, and a main substrate 7 is disposed at the lateral side of the partition wall 11. An insert contact 14 is insert-molded at the rear surface side cabinet 4 so that at least a part of the insert contact 14 is embedded in the rear surface side cabinet 4. The insert contact 14 allows the antenna 9 in the antenna housing part 12 to be electrically connected with a contact of the main substrate 7 across the partition wall 11.

Description

  The present invention relates to a portable terminal having an antenna.

  In this type of portable terminal having an antenna such as a cellular phone, as in Patent Document 1, for example, a casing in which an opening is formed and an interior of the casing in a state where the connection portion is exposed from the opening. Antenna member that is attached to the housing so as to be movable between a connection member disposed on the cover, a cover member that closes the opening, a storage state that is stored with respect to the outer surface of the housing, and an open state that is open And a holding member that is disposed in the housing and holds the antenna member in a stored state. The cover member is supported on the inside of the housing by the antenna member when the antenna member is held by the holding member in the housed state.

  When it is desired to avoid exposing most of the antenna member in this way, there is a structure in which the antenna 109 is accommodated inside the battery cover 108 as shown in FIG. Specifically, in the contact structure between the main board 107 and the antenna 109 (digital television or communication antenna), a feeding pin 113 that is electrically joined to the antenna 109 is inserted into the housing 104, and the tip of the pin is connected to the main body. Electrical characteristics are obtained by contacting an electrical contactable contact component 114 disposed on the substrate 107.

  Further, as shown in FIG. 10, there is a structure in which the antenna 209 is housed in the housing 204 and the contact 214 extending from the antenna 209 is connected to the main board 207.

JP 2009-10713 A

  However, in the structure as shown in FIG. 9, (1) the parts are overlapped in the thickness direction, so that certain restrictions occur in the product thickness, and (2) the contact 114 is taken inside the housing 104. For this reason, when the through-hole 115 for internally connecting the power supply pin 113 is provided, the through-hole 115 deteriorates reliability from the viewpoint of waterproofing. It is necessary to arrange screws 117 around the ring 116 to suppress the repulsion of the ring 116, and this leads to an increase in the number of parts. (3) When the battery cover 108 is removed, the antenna unit 109 is exposed, so that the design is improved. There is a problem in that it is damaged.

  On the other hand, in the built-in type as shown in FIG. 10, the antenna 209 is housed inside the housing 204, so that the above problems (1) and (3) can be avoided. In addition, a through hole for exposing the antenna 209 to the outside is necessary, and it is not possible to prevent water from entering the housing from the through hole. This problem also applies to an antenna that supports a communication band.

  The present invention has been made in view of such a point, and an object of the present invention is to ensure waterproof reliability while reducing the number of parts without impairing the appearance.

  In order to achieve the above object, in the present invention, the insert contact is insert-molded in the casing so as to straddle the partition wall of the antenna housing portion.

  Specifically, in the first invention, a portable terminal having an antenna is assumed.

And the mobile terminal
A housing having an antenna insertion hole for exposing the antenna;
An antenna housing provided in the housing and having a partition wall surrounding the antenna;
A main board disposed on the side of the partition;
An insert contact is formed in the housing so that at least a part of the housing is embedded in the housing, and the contact in the antenna housing portion is connected to the contact of the main board across the partition.

  According to said structure, since the main board | substrate and the antenna are separated by the partition, the waterproofing of the liquid which permeated into the antenna accommodating part from the antenna penetration hole becomes easy. Further, the antenna separated from the partition and the main board are electrically connected by the insert contact. Since the insert contact is insert-molded in the housing, the entire portable terminal can be made thinner by eliminating the overlap between parts such as the power supply base and power supply pin as before, and the number of parts can be reduced and waterproof performance can be achieved. Can be achieved. Moreover, since the antenna is built in the housing, it looks good.

In the second invention, in the first invention,
The antenna housing portion is covered with a waterproof tape.

  According to said structure, the liquid which permeated in the antenna accommodating part from the antenna penetration hole does not flow to the main board side with a waterproof tape.

In the third invention, in the first or second invention,
A boundary surface between the insert contact and the housing on the substrate side is covered with a waterproof tape.

  According to the above configuration, even when a gap is formed between the resin constituting the housing around the insert contact at the time of insert molding, the liquid that has entered the antenna housing portion does not enter the main substrate side, so that the waterproof property is further increased. improves.

  As described above, according to the present invention, the antenna housing portion having the partition wall surrounding the antenna is provided in the housing having the antenna insertion hole for exposing the antenna, the main board is disposed on the side of the partition wall, and at least partly The insert contacts are insert-molded so that they are embedded in the housing, and the antenna in the antenna housing and the contacts on the main board are connected across the partition wall, thus reducing the number of parts without sacrificing the appearance. Reliability can be ensured.

FIG. 3 is an enlarged cross-sectional view taken along line II in FIG. 2. 1 is a perspective view showing a mobile phone according to an embodiment of the present invention. It is a perspective view which expands and shows an antenna accommodating part and its periphery. It is a disassembled perspective view which expands and shows an antenna accommodating part and its periphery. It is a perspective view which shows the antenna accommodating part which removed the waterproof tape, and its periphery. It is an expansion perspective view which shows an antenna accommodating part, an insert contact, a water stop tape, and its periphery. It is a perspective view which shows the insert contact which abbreviate | omitted the back side cabinet, and its periphery. It is the perspective view which looked at the insert contact which abbreviate | omitted the back side cabinet, and its periphery from another direction. It is a figure equivalent to FIG. 1 which shows a prior art. It is a figure equivalent to FIG. 1 which shows another prior art.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 and 2 show a mobile phone 1 (smart phone) as a mobile terminal according to an embodiment of the present invention. The mobile phone 1 includes a front cabinet 3 in which a display unit 2 is accommodated in the front, and the front side. A back side cabinet 4 as a housing coupled to the back side of the cabinet 3 is provided. As shown in FIG. 1, a battery 6 is built in the front side of the rigid frame 5 that is insert-molded in the front side cabinet 3. A main board 7 is built in the back side cabinet 4 on the back side of the rigid frame 5.

  As shown in FIGS. 2 and 3, an antenna insertion hole 10 that exposes a telescopic antenna 9 for reception of a digital television or the like is opened at the upper end of the rear cabinet 4.

  As shown in FIGS. 4 and 5, the back side cabinet 4 is a resin molded product, and an antenna housing portion 12 having a partition wall 11 surrounding the antenna 9 is integrally formed. In the portion of the antenna 9 in which the feeding base 13 is accommodated, the partition wall 11 bulges to the left side to form a bulging portion 11a. The main board 7 is arranged on the left side with the partition wall 11 therebetween.

  A conductive insert contact 14 is insert-molded on the back side of the partition wall 11. Specifically, the insert contact 14 is made of a conductive metal, and an embedded portion 14a embedded in the back side cabinet 4 so as to straddle the partition wall 11 as shown in FIGS. And an antenna side contact 14b electrically connected to the antenna 9 in the antenna housing portion 12 and a board side contact 14c electrically connected to the contact of the main board 7. The embedded portion 14a has a narrower vertical width than the antenna side contact 14b and the substrate side contact 14c, and is bent to the back side. As shown in FIG. 6, the antenna side contact 14 b and the substrate side contact 14 c are exposed from the resin portion of the back side cabinet 4. The boundary surface between the substrate-side contact 14c and the resin portion of the back-side cabinet 4 is covered with a waterproof water-proof tape 15.

  As shown in FIGS. 1 and 7, the antenna 9 and the antenna side contact 14 b are electrically connected by an antenna side contact spring 16. Similarly, as shown in FIGS. 1 and 8, the board-side contact 14 c and the main board 7 are electrically connected by a board-side contact spring 17.

  As shown in FIGS. 1 and 3, the front side of the antenna housing portion 12 is sealed with a waterproof waterproof tape 18.

  With this configuration, the liquid that has entered the antenna housing portion 12 from the antenna insertion hole 10 is effectively prevented from flowing toward the main substrate 7 by the waterproof tape 18. Moreover, since the antenna 9 is built in the back side cabinet 4 like the structure of the conventional antenna 209 as shown in FIG. 10, it looks good.

  In addition, since the insert contact 14 is insert-molded in the back side cabinet 4, it is possible to eliminate the overlap between parts such as a power supply base and a power supply pin as in the prior art, and to reduce the thickness of the mobile phone 1 as a whole. Reduction of points and securing of waterproof performance can be achieved.

  And since the water stop tape 15 is provided, even if a gap is formed between the resin constituting the back side cabinet 4 around the insert contact 14, the liquid that has entered the antenna housing portion 12 enters the main substrate 7 side. Do not enter.

  Therefore, according to the mobile terminal according to the present embodiment, waterproof reliability can be ensured while reducing the number of components without impairing the appearance.

(Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.

  That is, in the above embodiment, the antenna 9 is a digital television antenna, but is not particularly limited, and may be another communication antenna.

  In the above embodiment, the mobile terminal is a mobile phone, but it may be a PHS (Personal Handy-phone System), a PDA (Personal Digital Assistant), a smartphone, a personal computer, a mobile tool, an electronic dictionary, a calculator, a game machine, or the like. Good.

  In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use.

  As described above, the present invention is useful for a mobile terminal such as a mobile phone having an antenna such as a digital TV.

1 Mobile phone (mobile terminal)
2 display section
3 Front side cabinet
4 Rear cabinet
5 Rigid frame
6 battery
7 Main board
9 Antenna
10 Antenna insertion hole
11 Bulkhead
11a bulge
12 Antenna housing
13 Power supply stand
14 Insert contact
14a Embedded part
14b Antenna side contact
14c Board side contact
15 Water stop tape
16 Antenna side contact spring
17 Board side contact spring
18 Waterproof tape

Claims (3)

In a mobile terminal having an antenna,
A housing having an antenna insertion hole for exposing the antenna;
An antenna housing provided in the housing and having a partition wall surrounding the antenna;
A main board disposed on the side of the partition;
Insert molding is performed on the housing so that at least a part of the housing is embedded in the housing, and an insert contact that connects the antenna in the antenna accommodating portion and the contact of the main board is provided across the partition wall. A featured mobile terminal. The mobile terminal according to claim 1,
The portable terminal characterized in that the antenna housing portion is covered with a waterproof tape. The mobile terminal according to claim 1 or 2,
A mobile terminal characterized in that a boundary surface of the insert contact with the housing on the substrate side is covered with a waterproof tape.