JP3438623B2 - Connection structure of electrical equipment housing - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure of an electric equipment casing which is electrically and mechanically connected, and more particularly to a joint structure suitable for portable electric equipment.

[0002]

BACKGROUND ART As is well known, in an electric device housing such as a personal computer, for example, another electric device such as an adapter is electrically coupled to an electric device main body with an electric connector through a connection cable. May be used.

By the way, when the electric equipment is portable,
Simply connecting the electrical device connected to the electrical device body with the electrical connector via the connection cable not only makes it inconvenient to carry, but also causes an unreasonable external force to act during the banding, causing the electrical connector to come off or be damaged. Sometimes. In particular, in the case of a radio telephone base station in which electrical equipment may be moved to a work site, auxiliary electrical equipment such as a power adapter used together with this radio telephone casing is connected to the radio telephone casing by a connection cable. It is not enough to make an electrical connection with the electrical connector via the connector, and it is necessary to mechanically connect the two in a stable state.

[0004]

In view of the above-mentioned problems on the belt, conventionally, a fixing means such as a fixing screw is prepared in addition to the connection by the electric connector by the connection cable.
The electrical equipment casings are mechanically and firmly connected. However, in such a forced fixing with only the fixing screw,
Since it is necessary to connect the electrical connector and tighten the fixing screw separately, it becomes difficult to attach and detach, and the electrical connector that requires precise positioning is overloaded due to rough handling,
In some cases, the connector part was destroyed.

In view of the conventional joint structure of electric equipment casings as described above, an object of the present invention is to simply mount another electric equipment casing on one electric equipment casing and When the connectors meet, the relationship between the two electrical device housings is automatically determined, and while maintaining the same relationship, the electrical device housings can be completely fixed with the mounting screws. To obtain the joint structure.

[0006]

In order to achieve this object, the present invention provides a first housing and a second housing of the electric device with the second housing placed on top of the first housing. In a joint portion structure of an electric equipment casing that mechanically couples a body and electrically couples the first casing and the second casing with an electric connector, a plurality of members are provided on a bottom surface of the second casing. A plurality of coupling members that form recesses and can be inserted into these recesses are projected onto the upper surface of the first housing, and are screwed into the corresponding coupling members from the side surface of the bottom of the second housing. The two housings are mechanically fixed to the first housing, and the electrical connector that is in a protruding state at the substantially center of the upper surface is brought into contact with the electrical connector on the bottom surface of the second housing. , A resin member having a base portion dropped into a rectangular hole formed in the upper surface of the first housing, and these resins A metal piece that is inserted into the material from above and is fixed to the first housing by twisting the lower end locking claw, and these metal pieces are provided with screw holes through which the mounting screws can act. The present invention proposes a joint structure of an electric device housing.

In the description of the preferred embodiments of the present invention described below, 1) the second housing is a radio telephone housing which is a base station of a radio telephone, and the first housing is connected to an auxiliary power source. An interface housing for supplying a power supply voltage to the wireless telephone housing and connecting between a telephone line connected to the wireless telephone housing and a wireless slave station will be described.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the drawings. In the illustrated embodiment, the wireless telephone housing 1 (second housing) that can be used as a base station of the wireless telephone, and the auxiliary power supply to be connected to the wireless telephone housing 1 is used.
This is an example in which the present invention is applied to an interface housing 2 (first housing) having a function of supplying a power supply voltage to and connected to another wireless telephone and a wireless slave station.

That is, the power button 4 and the key switch 5 are arranged on the surface of the wireless telephone housing 1 containing the 6-volt power supply battery 3 (shown in FIG. 5), and the wireless communication to be made by the input from the key switch 5 is made. Selection of slave station and telephones of other systems,
For example, it is possible to control communication with a mobile phone. That is, as understood from FIG. 5, the control device 6 for controlling the entire radio telephone system is built in the radio telephone casing 1, and the transmission / reception unit 6 a of the control device 6 is attached to the radio telephone casing 1. The communication with the target wireless slave station can be controlled via the antenna 7, and the operating state of the control device 6 and the input state by the key switch 5 are displayed on the liquid crystal display 8.

Further, a PH is provided on the back surface of the radio telephone casing 1.
PHS port 9 to which the external output code of the S telephone can be combined
Also, a mobile port 10 capable of connecting an external output code of the mobile phone is arranged, and communication between the mobile phone system or other telephone and the wireless telephone slave station can be performed via the PHS port 9 and the mobile port 10. it can.

The interface housing 2 on which the radio telephone housing 1 is mounted is supplied with power from the auxiliary power supply requested by the user to the interface housing 2, and
It is prepared for extended input other than the above-mentioned PHS system and mobile phone system, and inside it is the connector plug 1 on the bottom surface of the above-mentioned wireless telephone housing 1.
The control unit 13 connected to the connector socket 12 that can be connected to the 1 is built in.

The control unit 13, which is supplied with the power supply voltage from the power supply unit 14, has a plurality of expansion ports, that is, a telephone line 1 port 15 and a telephone line 2 port 16, a BS port 17, and a spare port which can be connected to a wired telephone line. Expansion ports 18 are connected, and telephone calls and data exchange between other telephone lines and the like connected to these expansion ports 18 and the wireless telephone slave station are enabled via the electric connectors 11 and 12. . Further, a DC 12V port 19 for a 12-volt DC power supply, a commercial port 20 for a 100-volt AC power supply, and a cigarette port 21 for a vehicle cigarette lighter provided on the front surface of the interface housing 2 are connected to the power supply unit 14 described above. Then, the power supply unit 14 transforms and rectifies these auxiliary power supplies to obtain the 6-volt DC power supply voltage required for the radio telephone casing 1.

Referring back to FIGS. 1 and 2, a pair of positioning pins 21 are projected on both sides of the connector plug 12 at the center of the upper surface of the interface housing 2, and a radiotelephone housing corresponding to these positioning pins 21. As shown in FIG. 2, a pair of positioning holes 22 into which the corresponding positioning pins 21 are inserted are formed on the bottom surface of the body 1. Therefore, the connector plug 11 supported by the printed wiring board 23 inside the radio telephone housing 1 and the connector socket 12 supported by the printed wiring board 24 inside the interface housing 2
Since the position in the horizontal plane is completely matched by aligning the corresponding positioning hole 22 with the positioning pin 21, the tip of the positioning pin 21 is inserted into the corresponding positioning hole 22 so that the connector socket 12 and the connector socket 12 The plug 11 is electrically coupled.

Two pairs of coupling members 25 are placed in a protruding state at positions near both sides of the upper surface of the interface housing 2, and corresponding coupling members 25 are provided on both sides of the bottom surface of the radio telephone housing 1. Two pairs of recesses 26 are formed to receive the protruding ends. That is, FIGS. 3 and 4 show a specific structure of the joining member 25. These joining members 25 are a hollow resin member 27 injection-molded with an insulating resin and the same resin member 27.
The metal piece 29 is dropped into the accommodation chamber 28 from above. That is, each accommodation chamber 28 is communicated with the outlet holes 30 opened on the lower surface of the resin member 27, and the fixed claws 2 integrally formed under the metal pieces 29 from these outlet holes 30.
9a is placed in a protruding state.

In order to mount the resin member 27 and the metal piece 29, a rectangular hole 32 corresponding to the horizontal sectional shape of the resin member 27 is formed in the top plate 31 of the interface housing 2, and these rectangular holes 32 are formed. A flat "U" -shaped mounting bracket 33 is spot-welded to the lower surface of the top plate 31 facing the front side. Since the locking holes 34 are formed in the central portions of these mounting brackets 33 while the fixing claws 29a of the metal pieces 29 are penetrated, the base portion of the resin member 27 is positioned in the rectangular hole 32. After the fixed claw 29
A is placed in the corresponding locking hole 34 in a penetrating state, and the head of the fixed claw 29a protruding from the corresponding locking hole 34 is simply "twisted" with a tool such as a spanner, so that the connecting member 25 for the interface housing 2 Fixing is completed.

Horizontally oriented screw holes 35 are formed in the upper portions of the metal pieces 29, and these screw holes 35 extend from the notches 36 formed in the upper portion of the resin member 27 to the lower side of the radio telephone casing 1. It is exposed to the mounting hole 37 of. That is, the mounting screws 38 are inserted into the mounting holes 37 from the outside of the radiotelephone housing 1, and the threaded portions of the mounting screws 38 can be screwed into the screw holes 35 of the metal piece 29. By tightening 38, the radio telephone casing 1 can be mechanically and firmly coupled to the upper portion of the interface casing 2.

Since the structure of the coupling portion of the electric equipment casing according to the illustrated embodiment has the above-described structure, the radio telephone casing 1 alone can be used as a base station for a radio telephone which can be carried. Further, the radio telephone casing 1 can be used by being electrically and mechanically coupled to the interface casing 2 when used with another power source such as an on-vehicle battery or for transmission / reception with a telephone line.

That is, when the interface housing 2 and the radio telephone housing 1 are used together, if the positioning pin 21 of the interface housing 2 is aligned with the positioning hole 22 of the radio telephone housing 1, the interface housing 2 Since the connecting member 25 of the above corresponds to the corresponding recess 26 of the wireless telephone housing 1, when the wireless telephone housing 1 is pressed against the interface housing 2, the connecting member 25 is guided by the recess 26,
The connector plug 11 of the wireless telephone housing 1 is electrically coupled to the connector socket 12 of the interface housing 2. Of course, since the connection state of the connector socket 12 and the connector plug 11 is maintained by the engagement of the coupling member 25 and the recess 26 having mechanical rigidity, a strong horizontal external force is applied to the interface housing 2 and the wireless communication. Even if it works with the telephone casing 1, this unreasonable external force is prevented from working between the connector socket 12 and the connector plug 11.

When the mounting screw 38 is tightened after the connector plug 11 is assembled with the connector socket 12, the radio telephone casing 1 is integrally mounted while being placed on the interface casing 2. Since the wireless telephone housing 1 and the interface housing 2 are completely integrated and can be carried in a state in which they are integrated, there is a risk that the electric connector may come off during a call or the other housing may be removed during handling. Can be avoided.

[0020]

As is apparent from the above description, according to the present invention, an unreasonable force does not act on the electrical connector that connects the first housing and the second housing, and the first housing and the second housing are connected. The two housings can be mechanically and firmly connected. Further, according to the coupling portion structure of the electric equipment casing of the present invention, the electric coupling between the first casing and the second casing can be completed in the step of mounting the second casing, and the mounting screw is tightened. Since both housings can be completely integrated with each other, the structure is suitable for a band-type electric device.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a wireless telephone device according to the present invention.

FIG. 2 is a front view of the wireless telephone device with a part cut away.

FIG. 3 is an enlarged cross-sectional view of a main part of a coupling part of the wireless telephone device.

FIG. 4 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 5 is a block diagram of the wireless telephone device.

[Explanation of symbols]

1 Radio telephone housing (second housing) 2 Interface housing (first housing) 3 power battery 4 power button 5 key switch 6 control device 7 antenna 11 connector plug 12 connector socket 13 Control unit 14 power supply unit 15 telephone lines 1 port 16 telephone lines 2 ports 19 DC12V port 20 commercial ports 21 Positioning pin 22 Positioning hole 25 Connecting member 26 recess 27 Resin material 29 metal pieces 32 rectangular hole 33 mounting bracket 35 screw holes 37 Mounting hole 38 Mounting screw

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Claims (2)

(57) [Claims] 1. The first housing and the second housing are mechanically coupled to each other while the second housing is placed on the first housing of the electric device, and the first housing and the second housing are connected together. In a joint portion structure of an electric equipment casing for electrically coupling the second casing with an electric connector, a plurality of concave portions are formed on the bottom surface of the second casing and can be inserted into these concave portions. Mechanically fixing the second housing to the first housing with a mounting screw that projects the connecting member from above into the upper surface of the first housing and can be screwed into the corresponding connecting member from the bottom side surface of the second housing, An electrical connector which is in a protruding state at a substantially central portion of the upper surface is brought into contact with an electrical connector on a bottom surface of the second housing, and each of the coupling members is formed in a rectangular hole formed on the upper surface of the first housing. The resin member to be dropped into and the resin member inserted from above and the lower end locking claw is twisted. A coupling portion structure for an electric equipment casing, comprising metal pieces fixed to a first casing by processing, and forming screw holes capable of acting the mounting screws in these metal pieces. 2. The second casing is a radio telephone casing that is a base station of a radio telephone, and the first casing supplies and connects a power supply voltage to the radio telephone casing from an auxiliary power supply to be coupled. 2. The coupling structure of an electric equipment casing according to claim 1, wherein the joint portion structure is an interface casing that connects the telephone line and the wireless slave station.