JP2756055B2 - Connector for external interface of wireless terminal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for an external interface of a wireless terminal device for connecting a wireless terminal device such as a portable telephone to another device such as an external antenna.

[0002] In recent years, as mobile phones and cordless phones have become smaller and more sophisticated, higher density mounting is required. An external interface connector used for connecting this kind of wireless terminal device to another device such as an external antenna is also required to have excellent mountability.

[0003]

2. Description of the Related Art Conventionally, a coaxial connector has been used to connect a high frequency circuit realized on a printed wiring board to an external circuit. For example, this type of coaxial connector is used when using an external antenna to increase the sensitivity of a mobile phone.

In order to connect a low-frequency circuit or a power supply circuit realized on a printed wiring board to an external circuit, a multi-connector having a plurality of contacts is used.
For example, when a mobile phone is connected to a hands-free unit, a measuring instrument, or the like, this type of multi-connector is used.

[0005]

Conventionally, when it is necessary to use a coaxial connector and a multi-connector in a wireless terminal device, it has been necessary to fix these separately to a printed wiring board, so that the mountability is poor. There was a problem.

The present invention has been made in view of such circumstances, and has as its object to provide an external interface connector with excellent mountability for connecting a wireless terminal device to an external antenna or an external circuit. .

[0007]

According to the present invention, there is provided a connector for an external interface of a wireless terminal device, comprising: a connector housing having an insertion hole for a connector plug; and a coaxial connector for high frequency signals provided in the insertion hole of the connector housing. A multi-connector portion for low-frequency signals provided in the insertion hole alongside the coaxial connector portion; and a battery power contact portion for power supply provided below the connector housing, The respective lead terminals from the coaxial connector portion, the multi-connector portion and the battery power contact portion are located on the same plane on the side opposite to the insertion hole of the connector housing.

[0008]

According to the structure of the present invention, the respective lead terminals from the coaxial connector, the multi-connector and the battery power connector are located on the same plane on one side of the connector housing. The connector can be easily mounted on one surface of the printed wiring board.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of a mobile phone provided with an external interface connector of the present invention, and FIG. 2 is a plan view (A) and a bottom view (B) thereof.

A receiving unit 2 containing a speaker is provided at an upper end of a handset body of the portable telephone, and a display unit 4 using a liquid crystal display or the like, and a dial and a function are provided at an intermediate portion of the handset body. A switch unit 6 having a function is provided. On the left side of the lower end of the main body of the handset, there is provided a transmitting section 8 containing a microphone.

An external interface connector 10 is provided at the center of the bottom of the handset body. Sign 1
Reference numeral 2 denotes a cover that can be opened and closed with respect to the handset main body. The cover 12 covers the switch unit 6 when closed and functions as a reflection sound collecting plate for the transmission unit 8 when opened. The cover 12 can be kept open even when a connector plug is connected to the external interface connector 10. Code 14
Is an antenna provided to be extendable from the handset body.

FIG. 3 is an exploded perspective view of the portable telephone. The external interface connector 10 is mounted on a printed wiring board 16. Lower cover 18 and upper cover 20
Between them, the printed wiring board 16, the switch board 22, and the switch sheet 24 are assembled in this order. Reference numeral 26 denotes a battery power supply mounted on the lower cover 18, and an electrode 28 of the battery power supply contacts a later-described battery power contact of the external interface connector 10.

FIGS. 4A and 4B are a plan view and a front view of the external interface connector 10, respectively.
FIGS. 5A, 5B, and 5C are a sectional view taken along line AA, a sectional view taken along line BB, and a sectional view taken along line CC in FIG. 4B, respectively.

This external interface connector 10
Are a connector housing 30 having an insertion hole for a connector plug, a coaxial connector portion 32 for a high-frequency signal provided in the insertion hole of the connector housing 30, and a coaxial connector portion 32. A multi-connector section for low-frequency signals provided, and battery power contact sections for power supply provided below the connector housing 30 are provided. The coaxial connector 32 is for connecting the mobile phone to an external antenna, for example, and the multi-connector is for connecting the mobile phone to a vehicle-mounted adapter such as a hands-free unit.

The battery power contact section 36 is connected to the positive electrode of the battery power, and the battery power contact section 38 is connected to the negative electrode of the battery power. In this example, only the battery power contact 36 has a switching function. The coaxial connector 32 also has a switching function. This switching function will be described later.

The positive battery power contact section 36
5A, a first switch contact 40 protruding into the insertion hole of the connector housing 30 and a second switch contact 40 protruding below the connector housing 30. As shown in FIG.
And a switch contact 42. One end 40A of the first switch contact 40 is connected to the connector housing 30.
And extends to the side opposite to the insertion hole, which serves as a lead terminal for battery power. As shown, when the connector plug is not inserted into the insertion hole of the connector housing 30, the first switch contact 40 and the second switch contact 42 are in contact at point A, and the positive electrode of the battery power supply is the second electrode. Switch contact 42
And a first switch contact 40 connected to an internal circuit of the mobile phone.

As shown in FIG. 5B, the multi-connector section 34 includes a flat insulator 44 fixed to the connector housing 30 and a plurality of contacts 46 provided on the upper and lower surfaces of the flat insulator, respectively. 48.
One end 46A of the contact 46 and one end 4 of the contact 48
8A is a connector housing 3 as a lead terminal.
The rows are alternately arranged one by one on the side opposite to the zero insertion hole. By alternately arranging the lead terminals one by one in this manner, the mounting density on the printed wiring board can be increased.

As shown in FIG. 5C, the coaxial connector portion 32 includes a substantially cylindrical insulator 50, an outer conductor 52 covering the outer periphery of the insulator 50, and an inner conductor located inside the insulator 50. 54, 56. One end 52A of the outer conductor 52 and one end 54A, 56A of the inner conductors 54, 56 extend to the opposite side of the connector housing 30 from the insertion hole, and serve as lead terminals.

The internal conductors 54 and 56 comprise a first switch contact 54 movable with respect to the insulator 50 and a second switch contact 56 fixed with respect to the insulator 50. Lead terminals 40A, 46A, 48A, 52A, 54
A and 56A are located on the same plane on the side opposite to the insertion hole of the connector housing 30, so that the external interface connector can be easily mounted on a printed wiring board. Reference numerals 58 denote bosses provided at both ends in the width direction of the connector housing 30. The bosses 58 are engaged with holes of the printed wiring board to determine the position of the external interface connector 10 on the printed wiring board. It can be done easily.

FIGS. 6A and 6B are a plan view (A) and a front view (B) of a connector plug which can be used by being attached to the external interface connector in this embodiment.
Is a sectional view of the connector plug. In FIG.
The position of each section of (A), (B) and (C) is shown in FIG.
(A), (B) and (C) correspond to respective cross-sectional positions of the external interface connector.

As shown in FIG. 6, the connector plug is provided with a plug insertion portion 62 provided at the tip of a plug housing 60. The plug insertion portion 62 is provided with a multi-connector plug 64 and a coaxial connector plug 66 corresponding to the multi-connector portion and the coaxial connector portion of the external interface connector.

In FIG. 7A, reference numeral 68 denotes a lock spring whose one end is fixed to the plug housing 60, and a key-shaped lock piece 68A is formed at the tip of the lock spring 68. The lock spring 68 is driven by its own urging force,
Is pushed upward in FIG. 7A. Further, a push piece 70 for unlocking is provided rotatably around the fulcrum 72 in the plug housing 60, and the push piece 70 is pushed into the plug housing 60 by the operation of pushing the push piece 70 into the plug housing 60. The projection 70A protruding downward pushes down the lock spring 68 downward to release the lock. Details of this operation will be described later.

The multi-connector plug 64 is shown in FIG.
As shown in FIG.
Are sandwiched between signal contacts 76 and 78. A plurality of signal contacts 76 and 78 are provided corresponding to the contacts 46 and 48 (see FIG. 5) of the multi-connector portion of the external interface connector.

The coaxial connector plug 66 has an inner conductor 80 and an outer conductor 82 as shown in FIG. 8A and 8B are explanatory diagrams of the operation at the cross-sectional position in FIG. 7A. First, as shown in FIG. 8A, when the plug insertion portion 62 of the connector plug is inserted into the insertion hole of the connector housing 30 on the external interface connector (receptacle) side, the lock spring 6
8, the lock piece 68A at the tip is pushed down along the inner wall of the insertion hole of the connector housing 30, and in this state, the plug insertion portion 62 of the connector plug further advances. A lock plate 84 having an opening 84A is provided at an upper portion of the connector housing 30.

When the lock piece 68A of the lock spring 68 reaches a position corresponding to the opening 84A of the lock plate 84, the lock piece 68A is moved by the urging force of the lock spring 68, as shown in FIG. In the opening 84A.

Therefore, in this state, even if a force is applied in the direction in which the connector plug is pulled out, the connector plug does not come off from the external interface connector. When removing the connector plug from the external interface connector, the connector plug is pulled out while the push piece 70 is pushed. This causes the lock piece 68A of the lock spring 68 to move downward in FIG. 8B, releasing the locked state of the lock piece 68A and the opening 84A of the lock plate, so that the connector plug can be pulled out. .

FIGS. 9A and 9B are explanatory diagrams of the operation at the sectional position of FIG. 7B. FIG. 9A shows a state where the plug insertion portion 62 of the connector plug has begun to be inserted into the insertion hole of the housing 30 on the receptacle side, and FIG.
Represents a state where the plug insertion portion 62 is inserted to the innermost portion of the insertion portion of the housing 30. When the plug insertion portion 62 is inserted into the insertion hole of the housing 30, the multi-connector portion on the receptacle side is positioned between the signal contacts 76 and 78 on the connector plug side. At the same time as the contact 46 of the multi-connector section comes into contact with the signal contact 78 and the corresponding contact 48, the connector connection for low frequency signals and the like is achieved.

According to this embodiment, the signal contacts 76 and 78 on the connector plug side are each elastically deformed, and the elastic force causes the signal contacts 76 and 78 to contact the contacts 4.
Since it acts in the direction of crimping to 6 and 48 respectively,
With the operation of inserting and removing the connector plug, the contacts of the contacts are cleaned, and reliable electrical connection is made possible.

FIGS. 10A and 10B are explanatory diagrams of the operation at the sectional position of FIG. 7C. First, FIG.
As shown in the figure, in a state before the internal conductor 80 on the connector plug side reaches the second switch contact 56 on the receptacle side after the insertion of the plug insertion portion 62 of the connector plug into the insertion hole of the housing 30 on the receptacle side, The second switch contact 56 is also in contact with the first switch contact 54 on the receptacle side, and electrical continuity is maintained. FIG. 11A is a perspective view showing the positional relationship between the first switch contact 54 and the second switch contact 56 at this time.

The first switch contact 54 on the receptacle side is connected to, for example, a high-frequency circuit of a mobile phone, and the second switch contact 56 is connected to, for example, an internal antenna built in the mobile phone. The internal conductor 80 on the connector plug side is connected to an external antenna mounted on an automobile or the like.

Subsequently, as shown in FIG. 10B, when the internal conductor 80 on the connector plug side is further inserted to the back and the internal conductor 80 pushes down the first switch contact 54, the first switch contact 54 And the second switch contact 56 is disconnected, and the first switch contact 54 is connected to only the internal conductor 80 on the connector plug side. The state at this time is shown in FIG.

When each contact is connected to the above-mentioned connection destination, the connection between the high-frequency circuit of the portable telephone and the internal antenna is cut off and the external antenna is connected to the high-frequency circuit only by inserting the connector plug into the receptacle side. Can be connected. Since the switching function is provided in the coaxial plug in this manner, the switching between the external antenna and the internal antenna can be automatically performed without mounting a switch such as a relay on the mobile phone.

FIG. 12 is a diagram for explaining the operation of the battery power contact. First, as shown in FIG. 12A, when the plug insertion portion 62 of the connector plug is inserted shallowly or not into the insertion hole of the connector housing 30 on the receptacle side, the battery power supply contact portion 36 , The contact between the first switch contact 40 and the second switch contact 42 is maintained, so that the power from the battery power supply (not shown) connected to the second switch contact 42
It is supplied to the mobile phone via the second and first switch contacts 40.

Next, as shown in FIG. 12B, when the plug insertion portion 62 on the connector plug side is inserted to the deepest portion of the insertion hole of the housing 30 on the receptacle side, the first switch contact is made by the plug insertion portion 62. 40 is pushed down, and the contact state between the first switch contact 40 and the second switch contact 42 is released. Therefore, in this state, power can be supplied to the mobile phone from the external power source via the multi-contact portion.

In the present embodiment, the switching function as described above is employed only in the battery power supply contact portion corresponding to the positive electrode of the battery power supply. However, the switching function is also provided in the contact portion corresponding to the negative electrode of the battery power supply. Can also be adopted.

According to the present embodiment, since the battery power contact section 36 is provided integrally with the external interface connector, there is no need to provide an independent power connector for the portable telephone.

[0037]

As described above, according to the present invention,
There is an effect that it is possible to provide an external interface connector excellent in mountability for connecting a wireless terminal device such as a mobile phone to an external antenna or an external circuit.

[Brief description of the drawings]

FIG. 1 is a perspective view of a mobile phone according to an embodiment of the present invention.

FIG. 2 is a plan view (A) and a bottom view (B) of a mobile phone according to an embodiment of the present invention.

FIG. 3 is an exploded perspective view of the mobile phone according to the embodiment of the present invention.

FIG. 4 is a plan view (A) and a front view (B) of the external interface connector according to the embodiment of the present invention.

FIG. 5 is a sectional view of an external interface connector according to the embodiment of the present invention.

FIG. 6 is a plan view (A) and a front view (B) of the connector plug according to the embodiment of the present invention.

FIG. 7 is a sectional view of the connector plug according to the embodiment of the present invention.

FIG. 8 is an operation explanatory view at a cross-sectional position of FIG.

FIG. 9 is an operation explanatory view at a cross-sectional position in FIG. 7 (B).

FIG. 10 is an operation explanatory view at a cross-sectional position in FIG. 7 (C).

FIG. 11 is a diagram for explaining connection of internal conductors in the example of the present invention.

FIG. 12 is a diagram for explaining an operation of a battery power contact according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 External interface connector 30 Connector housing 32 Coaxial connector part 34 Multi-connector part 36, 38 Battery power contact part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01R 23/02

Claims (8)

(57) [Claims] A connector housing (30) having an insertion hole for a connector plug, a coaxial connector (32) for a high-frequency signal provided in the insertion hole of the connector housing (30); 32), a low-frequency signal multi-connector section (34) provided in the insertion hole, and a power supply battery power contact section (36, 38) provided below the connector housing (30). ), And respective lead terminals from the coaxial connector section (32), the multi-connector section (34), and the battery power contact section (36, 38) are opposite to the insertion holes of the connector housing (30). A connector for an external interface of a wireless terminal device, which is located on the same plane on the side. 2. The coaxial connector section (32) includes a substantially cylindrical insulator (50) and an external conductor (5) covering the outer periphery of the insulator (50).
2. The connector for an external interface of a wireless terminal device according to claim 1, wherein the connector comprises 2) and an internal conductor located inside the insulator (50). 3. The insulator according to claim 1, wherein the inner conductor includes a first switch contact (54) movable with respect to the insulator (50) and the insulator (5).
0), and when the connector plug is inserted into the insertion hole of the connector housing (30), the inner conductor (80) of the connector plug is connected to the second switch contact (56). When the first and second switch contacts (54, 56) are not in contact with the first switch contact (54) and the connector plug is not inserted into the insertion hole of the connector housing (30), the first and second switch contacts (54) are not inserted. 3. The connector for an external interface of a wireless terminal device according to claim 2, wherein the second switch contacts (54, 56) are in contact with each other. 4. The connector for an external interface of a wireless terminal device according to claim 3, applied to a mobile phone, wherein an internal conductor (80) of said connector plug is connected to an external antenna, and said first switch contact. (54) is connected to a high frequency circuit of the mobile phone, and the second switch contact (56) is connected to an internal antenna of the mobile phone. 5. The multi-connector section (34) includes a flat insulator (44) fixed to the connector housing (30),
A plurality of contacts (46, 48) provided on the upper and lower surfaces of the plate-shaped insulator, and lead terminals from the plurality of contacts (46, 48) are opposite to the insertion holes of the connector housing (30). The connector for an external interface of a wireless terminal device according to claim 1, wherein the connectors are alternately arranged in a line on the side of the terminal. 6. The battery power contact section (36),
A first switch contact protruding into the insertion hole of the connector housing, and a second switch contact protruding below the connector housing; When inserted into the insertion hole of the connector housing (30), the first and second switch contacts (40, 42) become non-contact. When the connector plug is not inserted into the insertion hole of the connector housing (30), 2. The connector for an external interface of a wireless terminal device according to claim 1, wherein said first and second switch contacts are in contact with each other. 7. The second switch contact (42) contacts an electrode of a battery power supply, and when the connector plug is not inserted into the insertion hole of the connector housing (30), the first and second switch contacts (40). 7. The connector for an external interface of a wireless terminal device according to claim 6, wherein the power from the battery power supply is supplied via the battery power supply. 8. A lock plate (84) having an opening is provided on an upper portion of the connector housing (30), and the connector plug is inserted when the connector plug is inserted into an insertion hole of the connector housing (30). The external interface connector for a wireless terminal device according to claim 1, wherein the lock spring (68) is adapted to be locked in an opening of the lock plate (84).