JPH10181459A - On-board electronic equipment assembly - Google Patents

Abstract

PROBLEM TO BE SOLVED: To electrically and disconnectably connect a metal chassis with the ground, and to enhance the ground effect. SOLUTION: An on-board electric equipment is composed of a mount frame 12 secured to a metal part of a vehicle body, a carriable unit 13 movably attached to the mount frame 12, and a metal urging means attached to the mount frame 12, for urging the carriable unit 13 forward. Further, the carriable 13 incorporates a carriar casing 15 formed in a hole 103 for receiving a ground contact metal piece, at a position corresponding to the urging means, a metal chassis 95 arranged inward of the carrier casing 15, and shielding electronic parts, and a ground contact metal piece 97 loosely fitted in the hole 103, for electrically connecting the metal chassis 95 with the urging means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle-mounted electronic device assembly.

[0002]

2. Description of the Related Art Conventionally, a mounting space such as a 1DIN space or a 2DIN space is formed in an instrument panel of a vehicle, and an electronic device such as an audio device, a communication device, and a navigation device is mounted in the mounting space. Has become. In this case, the housing of the electronic device is electrically connected to the ground of the vehicle, and the electronic components in the housing are shielded so that the electronic components are not affected by noise, static electricity, or the like. Therefore, when assembling the electronic device into the mounting space, a fixing portion of the housing and a metal portion of the vehicle body are brought into contact with each other, and the housing is fixed to the vehicle body with bolts or the like.

[0003]

However, the above-mentioned conventional electronic equipment cannot be used by removing it from the vehicle. Therefore, a mount frame fixed to the mounting space and an in-vehicle electronic device assembly in which the electronic device is detachably mounted on the mount frame can be considered.

By the way, in order to shield the electronic components in the housing of the electronic device so as to prevent the electronic components from being affected by noise, static electricity, etc., a metal chassis is provided in the housing, and the metal chassis is connected to the metal chassis. Although it is necessary to electrically connect the ground of the vehicle, the electronic device is detachably mounted on the mount frame. Therefore, the connection between the metal chassis and the ground of the vehicle must be detachable. Must.

[0005] Therefore, it is conceivable to use one of the terminals of the connector for connecting the mount frame and the electronic device as a ground, and to connect the metal chassis and the ground of the vehicle electrically detachably. However, when using a connector to electrically connect the metal chassis to the vehicle ground, noise, static electricity, etc., are lower than those in which the housing is fixed to the vehicle body with bolts or the like as in conventional electronic equipment. Low ground effect on impact.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the conventional on-vehicle electronic device assembly, and enables the metal chassis and the ground of the vehicle to be electrically detachably connected to each other, thereby enhancing the ground effect. It is an object of the present invention to provide an in-vehicle electronic device assembly that can perform the following.

[0007]

For this purpose, in the vehicle-mounted electronic device assembly according to the present invention, a mount frame fixed to a metal portion of a vehicle body and a detachable mountable mount are provided with respect to the mount frame. Carryable unit,
Metal urging means attached to the mount frame for urging the carryable unit forward.

The carrier unit has a carrier case provided with a ground metal piece insertion hole at a position corresponding to the urging means, and is disposed inside the carrier case.
A metal chassis for shielding the electronic component; and a ground metal piece loosely fitted (canned) in the ground metal piece insertion hole and electrically connecting the metal chassis to the urging means.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 2 is a perspective view of the vehicle-mounted electronic device assembly in the audio mode according to the embodiment of the present invention. FIG. 3 is a perspective view of the vehicle-mounted electronic device assembly in the visual mode in the embodiment of the present invention.
FIG. 4 is a side view of the carryable unit according to the embodiment of the present invention.

In the figure, 11 is a vehicle-mounted electronic device assembly, 12 is a metal mount frame which is mounted in a mounting space of a 1DIN space of an instrument panel (not shown) of the vehicle and is electrically connected to a ground of the vehicle. Reference numeral 13 denotes a carryable unit including electronic devices such as audio devices, communication devices, and navigation devices which are removably mounted on the mount frame 12. The carrier unit 13 includes a carrier case 15 formed by coating a resin, a metal, or the like, a slide table 16 movably disposed in the direction of arrow D with respect to the carrier case 15, and the carrier case. Fifteen
The display unit 17 is arranged so as to be movable in the direction of arrow D and swingable in the direction of arrow E around a hinge (not shown).

The mount frame 12 has a front wall 31, side walls 32, 33 provided with openings so that the carrier unit 13 can be attached and detached, and a back wall 34 to which composite cables 23, 24 are connected. , A top wall 35 and a bottom wall 36, which are fixed by bolts (not shown) in contact with metal parts of the vehicle. Reference numerals 21 and 22 denote connectors connected to the ends of the cables 23 and 24. The connectors 21 and 22 are connected to a sensor unit and the like in the instrument panel.

The carrier case 15 includes a front wall 41, side walls 42, 43, and a back wall 4 having openings for inserting the slide table 16 and the display unit 17.
4, a top wall 45 and a bottom wall 46. The front wall 41 and the back wall 44 are made of resin, and the side walls 42, 43, the top wall 45
The bottom wall 46 is formed of metal. Further, a CD tray 18 is provided on the slide table 16 so that a disc (not shown) can be used as a data source. Further, a display 131 is provided in the display unit 17,
The image displayed on the display 131 can be visually recognized.

In order to operate the carryable unit 13, an operation unit 26 including a switch, a key, a speaker, a remote control light receiving unit and the like is formed on a front panel 16a of the slide table 16. Therefore, in the visual mode, the display unit 17 is pulled out of the carryable unit 13 and raised, and an image is displayed on the display 131 by operating the operation unit 26 or a remote controller (not shown).
Pull out the slide table 16 from the CD tray 18
Or you can set a disc. Further, in the audio mode, a CD player (not shown) can be operated by operating the operation unit 26.
Then, when it is not necessary to operate the carryable unit 13, the display unit 17 can be tilted, the slide table 16 can be pushed in, and stored in the carryable unit 13. Reference numeral 132 denotes a front panel of the display unit 17.

Next, a description will be given of a connection mechanism for detachably mounting the carryable unit 13 with respect to the mount frame 12. FIG. 5 is a plan sectional view of the mount frame according to the embodiment of the present invention, FIG. 6 is a front sectional view of the mount frame according to the embodiment of the present invention, and FIG. 7 is a side sectional view of the mount frame according to the embodiment of the present invention. 8, FIG. 8 is a rear perspective view of the carryable unit according to the embodiment of the present invention, FIG. 9 is a rear view of the carryable unit according to the embodiment of the present invention, and FIG. It is sectional drawing.

In the drawing, reference numeral 34 denotes the mount frame 12.
A back wall 36 in FIG. 3 is a bottom wall of the mount frame 12. A mount frame substrate 57 is attached to the inner surface of the back wall 34, and connectors 58 and 59 are mounted on the back of the mount frame substrate 57. Via cables 23, 24
Is connected. Also, the mount frame side substrate 57
Connectors 61 and 62 are attached to the front of the device.

On the other hand, connectors 67 and 68 are attached to the outer surface of the back wall 44 of the carryable unit 13,
The connectors 67 and 68 are detachably connected to the connectors 61 and 62, respectively. Therefore, when the carrier unit 13 is pushed into the mount frame 12, the connectors 67 and 68 are connected to the connectors 61 and 62, respectively. As a result, the carrier unit 13 and the mount frame 12 are electrically connected. You.

The back wall 34 is formed at both ends with substantially U-shaped engaging pieces 73 projecting forward. The locking piece 73 has a locking hole 73a, and when the carryable unit 13 is pushed into the mount frame 12, a substantially "S" -shaped locking member between the locking piece 73 and the carryable unit 13 is formed. 92 are engaged with each other, so that the carryable unit 13 is held by the mount frame 12.

To this end, when the carrier unit 13 is pushed into the mount frame 12, the locking piece 73 is attached to the back wall 44.
An opening 53 for entering the inside 3 is formed. The locking member 92 is supported swingably around the pin 91 in the carryable unit 13 and urged forward (downward in FIG. 10) by a spring (not shown).

When the "L" -shaped lever 93 is pulled down from the horizontal state to the vertical state, the locking member 92
Bent portion formed at one end of the hook and locking hole 73a of locking piece 73
Is disengaged, and when the carryable unit 13 is inserted and mounted in the mount frame 12, the locking member 92 and the locking hole 73a are engaged, and the carryable unit 13 is mounted on the mount frame 12. Locked to frame 12.

Conversely, when the lever 93 is changed from the vertical state to the horizontal state, a link (not shown) rotates clockwise, and the locking member 92 rotates counterclockwise to rotate the locking member 92 and the locking hole. The engagement with 73a is released, and the locked state of the carryable unit 13 with respect to the mount frame 12 is released. Further, a metal leaf spring 74 as urging means is fixed to the back wall 34 in a cantilever manner by a caulking pin 74b, and the leaf spring 74 and the mount frame 12 are electrically connected. Then, a pressing portion 74 a formed on the free end side of the leaf spring 74 is opposed to the back wall 44 of the carryable unit 13. Therefore, when the carryable unit 13 is pushed into the mount frame 12, the back wall 44 hits the pushing portion 74a,
The leaf spring 74 is curved. As a result, the carryable unit 13 is urged forward (downward in FIG. 5) by the leaf spring 74. When the lever 93 is pulled toward the user, the engagement between the locking piece 73 and the locking member 92 is released, so that the pressing portion 74a pushes the back wall 44, and the urging force of the leaf spring 74 The carryable unit 13 is pushed forward.

In the vehicle-mounted electronic device assembly 11 having the above-described structure, the electronic components (not shown) in the carrier unit 13 are shielded, and the carrier case is protected so that the electronic components are not affected by noise, static electricity or the like. Fifteen
A metal chassis 95 is disposed inside the metal chassis 9.
5, the slide table 16 and the display unit 1
7 and the metal chassis 95 and the leaf spring 7
4 are electrically connected to each other by a ground metal piece 97 disposed on the back wall 44.

FIG. 1 is an enlarged view of a grounding portion of an on-vehicle electronic device assembly according to an embodiment of the present invention, and FIG. 11 is an arrangement state diagram of a control board of the on-vehicle electronic device assembly according to an embodiment of the present invention. FIG. 12 is a perspective view of a ground metal piece according to the embodiment of the present invention. In the figure, 32 is the side wall of the mount frame 12, 34 is the back wall of the mount frame 12, 42 and 43 are the side walls of the carrier case 15, 44 is the back wall of the carrier case 15, 95 is the metal chassis, 9
5a is a back wall of the metal chassis 95, 101 is a control board fixed to the metal chassis 95 by screws 102, and electronic components (not shown) are attached to the upper and lower surfaces of the control board 101.

In the back wall 44, ground metal piece insertion holes 103 are formed at both ends of the back wall 44, and ground metal pieces 97 are loosely fitted in the respective ground metal piece insertion holes 103. The ground metal piece 97 is composed of a body 105 and a pair of legs 106 formed so as to protrude from the body 105, and the ground metal piece 97 is inserted into the ground metal piece insertion hole 103. The front surface 110 of the body 105 faces the back wall 34 side from the ground metal piece insertion hole 103, and the leg 106 and the back wall 95a are brought into contact with each other.

The ground metal piece insertion hole 103 has a shape corresponding to the body 105, so that the carrier case 1
5 are assembled, the legs 106 are attached to the back wall 4.
It is disposed in a gap 145 formed between the back wall 4 and the back wall 95a, and is sandwiched between the back wall 44 and the back wall 95a. Therefore, the ground metal piece 97 is inserted through the ground metal piece insertion hole 103.
Will not fall.

Then, in a state where the carrier unit 13 is pushed into the mount frame 12, the pressing portion 74 a of the leaf spring 74 and the front surface 1 of the ground metal piece 97.
10 hits the ground metal piece 97 against the back wall 95a. Therefore, since the leaf spring 74 and the ground metal piece 97 and the ground metal piece 97 and the metal chassis 95 are all electrically connected, the metal chassis 95 is electrically connected to the ground of the vehicle. can do.

Further, since the ground metal piece 97 is loosely fitted in the ground metal piece insertion hole 103, the gap between the trunk 105 and the ground metal piece insertion hole 103, and between the leg 106 and the gap 145 are formed. A clearance is formed between them. Therefore, even if there is a manufacturing error in the mount frame 12, the carryable unit 13, or the like, the manufacturing error can be absorbed by the clearance, so that the metal chassis 95 and the ground of the vehicle can be electrically detachably mounted. Can be connected.

When the carryable unit 13 is pulled out of the mount frame 12, the pressing portion 74a
And the front surface 110 are separated, so that the metal chassis 95
And the ground of the vehicle are electrically disconnected. By the way, since the carryable unit 13 is detachably mounted on the mount frame 12, it can be taken out from the mount frame 12 and used.

FIG. 13 is a perspective view of a mount frame according to the embodiment of the present invention, FIG. 14 is a state diagram when the on-vehicle electronic device assembly according to the embodiment of the present invention is used outside a vehicle, and FIG. FIG. 16 is a front view of the household power unit according to the embodiment of the present invention, and FIG. 16 is a plan view of the household power unit according to the embodiment of the present invention. In the figure, reference numeral 12 denotes a mount frame. When the carryable unit 13 is taken out from the mount frame 12, a blind flap 12a covers an opening formed in the front wall 31. Reference numeral 96 denotes the carryable unit 1 taken out of the mount frame 12.
3 is a household power unit that is attached to and detached from the back wall 44 of the third carrier case 15. Therefore, the carrier unit 13 is taken out from the mount frame 12 and the carrier case 1 of the carrier unit 13 is removed.
The home power unit 96 can be attached to the back wall 44 of the fifth unit 5 so that the carryable unit 13 can be used outside the vehicle.

Incidentally, the home power unit 96
, Locking pieces 124 are formed at both ends so as to protrude forward. The locking piece 124 has a locking hole (not shown), and is provided on the back wall 44 of the carrier case 15.
6, the locking member 92 (FIG. 10) and the locking piece 124 are engaged, so that the carryable unit 13 and the household power unit 96 are connected.

When the carryable unit 13 and the household power unit 96 are connected to each other, a leaf spring 125 as a biasing means formed on the household power unit 96 and a body of the ground metal piece 97 (FIG. 12) are formed. The front surface 110 of the 105 contacts the ground metal piece 97 and presses it against the household power unit 96. Therefore, the leaf spring 125 and the ground metal piece 97 and the ground metal piece 97 and the metal chassis 95 are all electrically connected.

The present invention is not limited to the above embodiment, but can be variously modified based on the gist of the present invention, and they are not excluded from the scope of the present invention.

[0032]

As described above in detail, according to the present invention, in a vehicle-mounted electronic device assembly, a mount frame fixed to a metal portion of a vehicle body and a mount frame detachably attached to the mount frame. It has a carryable unit provided and a metal urging means attached to the mount frame and urging the carryable unit forward.

The carrier unit has a carrier case provided with a ground metal piece insertion hole at a location corresponding to the urging means, and is disposed inside the carrier case;
A metal chassis for shielding the electronic component; and a ground metal piece loosely fitted in the ground metal piece insertion hole and electrically connecting the metal chassis to the urging means. In this case, when the carrier unit is pushed into the mount frame against the urging force of the urging means, the ground metal piece electrically connects the metal chassis and the urging means. As a result, the metal chassis is electrically connected to the ground of the vehicle, so that the electronic components in the carryable unit can be shielded, so that the electronic components are not affected by noise, static electricity, and the like.

When the carrier unit is pulled out from the mount frame, the metal chassis is electrically disconnected from the ground of the vehicle. Thus, the ground effect can be enhanced. Further, when the carrier unit is detached from the vehicle and the home power unit is attached and used outside the vehicle, the resin portion of the carrier case is not damaged and the design can be maintained.

Since the clearance is formed by loosely fitting the ground metal piece into the ground metal piece insertion hole, even if there is a manufacturing error in the mount frame, the carryable unit, or the like, the manufacturing error is absorbed by the clearance. can do. Therefore, it is possible to electrically detachably connect the metal chassis and the ground of the vehicle.

[Brief description of the drawings]

FIG. 1 is an enlarged view of a ground portion of an on-vehicle electronic device assembly according to an embodiment of the present invention.

FIG. 2 is a perspective view of the on-vehicle electronic device assembly in the audio mode according to the embodiment of the present invention.

FIG. 3 is a perspective view of the on-vehicle electronic device assembly in the visual mode according to the embodiment of the present invention.

FIG. 4 is a side view of the carryable unit according to the embodiment of the present invention.

FIG. 5 is a plan sectional view of the mount frame according to the embodiment of the present invention.

FIG. 6 is a front sectional view of the mount frame according to the embodiment of the present invention.

FIG. 7 is a side sectional view of the mount frame according to the embodiment of the present invention.

FIG. 8 is a rear perspective view of the carryable unit according to the embodiment of the present invention.

FIG. 9 is a rear view of the carryable unit according to the embodiment of the present invention.

FIG. 10 is a sectional view of the carryable unit according to the embodiment of the present invention.

FIG. 11 is a view showing an arrangement state of a control board of the on-vehicle electronic device assembly according to the embodiment of the present invention.

FIG. 12 is a perspective view of a ground metal piece according to the embodiment of the present invention.

FIG. 13 is a perspective view of a mount frame according to the embodiment of the present invention.

FIG. 14 is a state diagram when the on-vehicle electronic device assembly according to the embodiment of the present invention is used outside a vehicle.

FIG. 15 is a front view of the household power unit according to the embodiment of the present invention.

FIG. 16 is a plan view of the household power unit according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 On-vehicle electronic device assembly 12 Mount frame 13 Carryable unit 15 Carrier case 74, 125 Leaf spring 95 Metal chassis 97 Ground metal piece 103 Ground metal piece insertion hole

Claims (1)

[Claims] 1. A mount frame fixed to a metal part of a vehicle body, a carryable unit detachably mounted on the mount frame, and a mountable unit attached to the mount frame, the carrierable unit being moved forward. A metal urging means for urging the carrier unit, the carrier unit having a ground metal piece insertion hole at a location corresponding to the urging means,
A metal chassis disposed inside the carrier case for shielding electronic components; and a ground metal piece loosely fitted in the ground metal piece insertion hole and electrically connecting the metal chassis and the urging means. A vehicle-mounted electronic device assembly characterized by the above-mentioned.