JPH0715105Y2 - Separable electronic device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Overview The present invention relates to a vehicle-mounted electronic device in which a first main body part such as a device main body and a second main body part such as an operating portion can be separated from each other. A separable electron that locks the first body portion and the second body portion and is electrically connected to each other in a state where the first body portion and the second body portion are mounted to each other and can share the ground potential between the first body portion and the second body portion. Equipment.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device such as a vehicle-mounted wireless device in which a first main body part such as a device main body and a second main body part such as an operation part are separable from each other.

PRIOR ART FIG. 6 is a plan view of part of a typical prior art. An electronic device 1 such as a vehicle-mounted wireless device has a device body 2 which is a first body part and an operation part 3 which is a second body part, and these device body 2 and operation part 3 can be separated from each other. It is configured. When the operation unit 3 is attached to the device body 2, the device body 2 and the operation unit 3 are connected to the connector 4a and the connector 4b.
Are electrically connected by.

In another prior art, as shown in FIG. 7, the connectors 4a, 4 provided on the device main body 2 and the operation unit 3 respectively.
b is electrically connected by connectors 5a and 5b connected to both ends of the cable 5.

In still another prior art, as shown in FIG. 8, an insertion hole 8 through which the bolt 7 is inserted is formed in the housing 6 of the operation portion 3, and the bolt 7 inserted through this insertion hole 8 is used as a device main body. Screwed into the screw hole 10 of the mounting piece 9 formed in 2,
It is configured to connect the device body 2 and the operation unit 3.

Problems to be Solved by the Invention In the prior art shown in FIGS. 6 and 7 as described above, a large vibration force acts on the electronic device 1 and the attaching / detaching operation of the device body 2 and the operation portion 3 is repeated. Since the main body 2 and the operation unit 3 are not fixed to each other, the fitting force between the connected connectors 4a and 4B is reduced,
Poor contact or dropout may occur. Moreover, in the prior art shown in FIG. 8, a fastening tool such as a screwdriver is required for attaching and detaching the device main body 2 and the operating portion 3, and there is a problem that the assembling work is troublesome. .

Therefore, an object of the present invention is to solve the above-mentioned technical problem and to easily attach and detach the device main body which is the first main body part and the operation part which is the second main body part,
A separable electron for surely making an electrical connection between the first body portion and the second body portion and capable of securely holding the second body portion without lowering the strength. It is to provide equipment.

The present invention provides a first body portion having a first connector and a first body portion.
A second main body portion having a second connector connected to the connector, wherein the first main body portion has a guide protrusion protruding in a direction opposite to a direction in which the second main body portion is inserted into the first main body portion. A first portion having a rising portion arranged upstream of the guide protrusion in the insertion direction and rising in a direction perpendicular to the insertion direction, and a bent portion connected to the rising portion and bent to the insertion direction upstream side.
An engaging member is provided, an end plate having a fitting hole into which the guide protrusion fits when the first main body part is attached to the second main body part, and a bent part of the first locking member. And a second locking member having an engaging portion that engages with each other.

Further, according to the present invention, the first main body portion is provided with a spring member made of a conductive material that is grounded.
With the second body portion attached to the first body portion, the second body portion
It is a separable electronic device characterized in that it electrically contacts with a shield member provided in a main body portion elastically.

According to the present invention, when the second main body portion is mounted on the first main body portion, the guide protrusion provided on the first main body portion is provided as the second main body portion is inserted in the insertion direction. The second main body part is guided by being inserted into the fitting hole of the end plate provided on the second main body part, and at the same time, the second engagement part provided on the second main body member at the bent portion of the first locking member provided on the first main body part. The engaging portion of the stop member engages. This is the second
With the main body part attached to the first main body part, the displacement of the second main body part is prevented, and there is no risk that the second main body part will easily come off the first main body part.

Further, according to the present invention, the spring member provided on the first body portion is configured to elastically contact the shield member when the second body portion is mounted on the first body portion, so that the grounding is performed. The grounded potential can be made equal by electrically connecting the spring member and the shield member thus formed, and thus static electricity or the like of the second main body portion can be removed.

Embodiment FIG. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the embodiment shown in FIG. In an electronic device 15 such as a vehicle-mounted wireless device, a synthetic resin casing 19 of a first main body portion 18 is fixed by a bolt 17 to a mounting member 16 made of aluminum called a die cast.
A second body portion 20 is attached to the first body portion 18.
A conductive member 21 made of, for example, stainless steel is bonded to the inner surface of the casing 19 using an adhesive or the like, and an edge portion of the conductive member 21 is attached to the mounting member 16 and the casing 19 near the mounting position of the bolt 17. It is pinched by all means. Therefore, the conductive member 21 is grounded via the mounting member 16.

An insertion hole 23 is formed in the mounting portion 22 of the mounting member 16 on which the second main body portion 20 is mounted. On the conductive member 21 near the insertion hole 23, a spring member 26 having a contact piece 25 formed in a semicircular arc shape by press working or the like is formed. The top of the contact piece 25 of this spring member 26
As shown in FIG. 3, the vicinity of 27 is the mounting surface of the riding section 22.
It projects upward from 28 and elastically abuts on a connecting member 30 provided on the bottom portion 29 of the second main body portion 20 via an insertion hole 31. This connecting member 30 has an abutting portion 51 and has a second main body portion.
It is electrically connected to a shield member 34 adhered to the inner peripheral surface of the casing 33 of 20 with an adhesive or the like. The shield member 34 is, for example, an aluminum foil, and is provided so as to face the circuit board 35 arranged in the casing 33. A plurality of electronic components 36 are connected to the circuit wiring on the circuit board 35, and the shield member 34 tries to flow into the circuit wiring of the circuit board 35 via the surface of the casing 33 or the like. Static electricity can be removed.

In addition, the circuit board 35 is provided with the second main body portion 18 through the second protrusion 37.
Connector protruding in the direction opposite to the insertion direction A of the body portion 20
A connector C2 connected to C1 is provided. This connector
The front plate 38, which is the end plate of the casing 33 near C2, is formed with a fitting hole 40 into which a guide projection 39 projecting from the projection 37 in the same direction as the connector C1 is fitted. In the state where the guide protrusion 39 is fitted in the fitting hole 40, the second main body portion 20 has the guide protrusion 39.
When the second main body portion 20 is inserted in the insertion direction A while the displacement in the direction substantially perpendicular to the axis of 39, that is, in the direction vertical to the paper surface of FIG. 1 and in the vertical direction is prevented,
First, the vicinity of the tip of the guide protrusion 39 is fitted into the fitting hole 40 to position the second main body portion 20, whereby the connector C1 provided in the first main body portion 18 is provided in the second main body portion 20. The connector C2 can be securely inserted to make an electrical connection.

The casing 19 of the first main body portion 18 is provided with a first locking member 41 projecting from the mounting surface 28 at a position upstream of the guide protrusion 39 in the insertion direction A. The first locking member 41 is
It has a rising portion 42 that rises perpendicularly to the placement surface 28, and a bent portion 43 that is continuous with the rising portion 42 and that is bent in a direction opposite to the insertion direction A. Such a first locking member 41 is fitted into a recess 44 formed in the bottom plate 29 of the second body portion 20, and the bottom plate 9 is engaged with the bottom plate 9 so as to project in the insertion direction A in the recess 44. A second locking member 46 having a portion 45 is provided. The bent portion 43 of the first locking member 41 is engaged with the engaging portion 45 of the second locking member 46, and the projection 37 of the first main body portion 18 is brought into contact with the front plate 38 of the second main body portion 20. In the contacted state, the surface 47 on the downstream side in the insertion direction A of the rising portion 42 of the first locking member 41 and the recess 44 of the bottom plate 29.
The distance l1 from the surface 48 facing the is set to be approximately equal to or slightly longer than the length l2 of the guide protrusion 39.

When inserting the second main body portion 20 into the first main body portion 18, first, the second main body portion 20 is placed on the placement surface 28 of the first main body portion 18, and the first locking member 41 is recessed. It is fitted inside 44, and the second main body part 20 is moved in the insertion direction A, and is guided into the fitting hole 40.
By fitting the 39 to the first portion of the second main body portion 20,
The positioning to the main body portion 18 can be performed, so that the connector C2 of the second main body portion 20 can be easily and reliably connected to the connector C1 of the first main body portion 18.

In this way, when the connectors C1 and C2 are connected to each other,
The bent portion 43 of the first locking member 41 is the engaging portion of the second locking member 46.
Bottom plate 29 of the second body portion 20 which is engaged with 45
Does not separate from the mounting surface 28 of the first body portion 18, and there is no risk that the second body portion 20 will come off the first body portion 18.

4 is an enlarged sectional view taken along the section line IV-IV in FIG. 2, and FIG. 5 is an enlarged perspective view showing the connecting member 30 and the shield member 34. The connecting member 30 is made of a material such as stainless steel, and has a fitting portion 50 that fits into a fitting recess 49 formed in the bottom plate 29, and a contact portion 51 that is continuous with the fitting portion 50 and is curved. . A convex portion 52 is formed on the fitting portion 50, and the convex portion 52 is fitted into the insertion hole 31 of the bottom plate 29. When the second body portion 20 is attached to the first body portion 18, the contact piece 25 of the spring member 26 elastically abuts the convex portion 52. The contact piece 52 elastically contacts a hanging portion 54 provided along the side portion 53 of the casing 33, and the hanging portion 54 is connected to a flat portion 56 attached to the upper portion of the casing 33. Immediately below the flat portion 56 is the circuit board.
35 are arranged. The shield member 34 is configured by including the hanging parts 54 and the flat parts 56. The static electricity sucked by such a shield member 34 is
It flows into the conductive member 21 via 30 and the spring member 26, and the charge is removed via the casing 16 with which the conductive member 21 is in contact.
Thereby, the ground potentials of the first main body portion 18 and the second main body portion 20 can be made the same. Therefore, due to the difference in charging potential between the first and second body portions 18 and 20,
When mounted, static electricity on one side does not flow into the other.

In the above-described embodiment, the connection member 30 is interposed between the shield member 34 and the spring member 26, but as another embodiment of the present invention, the shield member is guided to the contact position of the spring member for electrical connection. May be performed.

According to the present invention, the first main body portion is provided with the guide protrusion,
Since the fitting hole into which the guide protrusion fits is provided in the main body portion, the second main body portion can be positioned with respect to the first main body portion at the time of mounting, and the connection between the connectors can be easily and reliably performed. It can be carried out. Further, since the first locking member is provided on the first main body portion and the second locking member is provided on the second main body portion, when the second main body portion is attached to the first main body portion, It is prevented that the bent portion of the locking member engages with the engaging portion of the second locking member and the second main body portion is separated from the first main body portion. Moreover, the second
When the main body portion is inserted into the first main body portion, the guide protrusion fits into the fitting hole to position the second main body portion in the insertion direction, so that no load acts on each connector. Further, since the second body portion is locked to the first body portion, a screw or the like is not required as in the above-mentioned prior art, so that the attaching or detaching work is easy and the operability can be improved.

Further, according to the present invention, a grounded spring member is provided on the first main body portion, and the spring member is attached to the shield member provided on the second main body portion with the second main body portion attached to the first main body portion. Since the second body portion is elastically contacted and electrically connected, the second body portion is attached to the first body portion, and at the same time, static electricity is removed and the ground potential of the first body portion and the second body portion is made common. can do.

[Brief description of drawings]

FIG. 1 is another sectional view of an embodiment of the present invention, and FIG.
First body portion 18 and second body portion of electronic device 15 shown in FIG.
Fig. 3 is a perspective view showing a state in which 20 is removed, Fig. 3 is an enlarged sectional view in the vicinity of the spring member 26, Fig. 4 is an enlarged sectional view taken along the section line IV-IV in Fig. 2, and Fig. 5 is a contact. FIG. 6 is a plan view showing a typical prior art, FIG. 7 is a plan view showing another prior art connection structure, and FIG. 8 is a further perspective view showing the member 30 and the shield member 34 in an enlarged manner. It is a disassembled perspective view which shows the connection structure of a prior art. 15 ... Electronic equipment, 18 ... First body part, 20 ... Second body part, 26 ... Spring member, 30 ... Connecting member, 34 ... Shield member, 39 ... Guide protrusion, 40 ... Fit Aperture, 41 ... First locking member, 42 ... Rising portion, 43 ... Bending portion, 45 ... Engaging portion, 46 ... Second locking member, A ... Insertion direction, C1, C2 ... …
connector

Claims (2)

[Scope of utility model registration request] 1. A first body portion including a first connector and a second body portion including a second connector connected to the first connector, wherein the first body portion includes a first body portion of the second body portion. 1 Guide protrusions projecting in a direction opposite to the insertion direction into the main body portion, rising portions arranged upstream of the guide protrusions in the insertion direction and rising in a direction perpendicular to the insertion direction, and the rising portions thereof. A first having a bent portion that is bent to the upstream side in the continuous insertion direction
An engaging member is provided, an end plate having a fitting hole into which the guide protrusion fits when the first main body part is attached to the second main body part, and a bent part of the first locking member. And a second locking member having an engaging portion that engages with each other. 2. The first body portion is provided with a spring member made of a grounded conductive material, the spring member having a second body portion attached to the first body portion and a second body portion. The separable electronic device according to claim 1, characterized in that it electrically contacts with a shield member provided on the main body portion to electrically conduct.