JP2588919Y2 - Connector device - 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 device for electrically connecting an apparatus main body and a grill main body detachably provided thereto.

[0002]

2. Description of the Related Art As a means of preventing theft associated with the upgrading of audio equipment such as a car stereo, a grille having a detachable grill body has been commercialized. This is intended to make it impossible to recognize the presence of the audio equipment by removing the grill main body from the equipment main body when leaving the vehicle.

[0003] FIG. 11 shows an example of such a detachable acoustic device, in which a grill main body 20 is detachably attached to the main body 10 of the device. A power supply terminal 1 for supplying a drive power of 5 V
1. Data input / output terminal 12 for inputting / outputting data
Power supply terminal 13 for supplying a driving power of 8 V
And the like.

[0006] A 5V power supply circuit 16 is connected to the power supply terminal 11 via a protection circuit 15. An 8V power supply circuit 17 is connected to the power supply terminal 13 via a protection circuit 15. Detection switch 18 for detecting the attachment / detachment state of grill main body 20 and data input / output terminal 1
2 is connected to a microcomputer (hereinafter simply referred to as a microcomputer).

On the other hand, the grill main body 20 is provided with a connector 24 having power input terminals 21 and 23, a data input terminal 22, and the like. The microcomputer 25 is connected to the power input terminal 21 and the data input terminal 22. A lamp 26 or the like is connected to the power input terminal 23 as a display.

In the acoustic device having such a configuration, when the grill main body 20 is mounted on the equipment main body 10, the connector 14 on the grill main body 20 is connected to the connector 14 on the equipment main body 10 side. As a result, driving power is supplied to the microcomputer 25 via the power supply terminal 11 and the power supply input terminal 21. Further, power is supplied to the lamp 26 via the power supply terminal 13 and the power input terminal 23.

On the other hand, when the grill main body 20 is removed from the equipment main body 10, the detection switch 18 is turned off, so that the microcomputer 19 detects this and drives the protection circuit 15 to drive the 5v power supply circuits 16 and 8v power supply circuits. Supply circuit 17
Cut off the power supply from. This is the grill body 20
When the device is removed from the device main body 10, each terminal on the device main body 10 is exposed, so that if any terminal is short-circuited or static electricity is generated by mistake, the internal circuit of the device main body may be damaged. This is because there is a risk of being lost.

[0008]

As described above, in the above-described conventional detachable audio equipment, the grill main body 20 is not provided.
Is removed from the device body 10, the device body 1
Each terminal of the connector 14 on the 0 side is exposed. For this reason, there is a possibility that the internal circuit of the device main body may be damaged due to the generation of a short-circuit current or static electricity, and the protection circuit 15 is required.

The present invention has been made in view of such circumstances, and has as its object to provide a connector device that can reduce the cost of audio equipment.

[0010]

SUMMARY OF THE INVENTION To achieve the above object, a first aspect of the present invention is a connector device for electrically connecting an apparatus body and a detachable mounting portion to the apparatus body by respective connectors. The connector on the device body side is provided with a fixed terminal connected to the conductive pattern of the board on the device body side, and a movable terminal that is not connected to the conductive pattern when the mounting portion is removed, The connector on the mounting portion side is provided with a fixed terminal connected to the conductive pattern on the mounting portion side, and when mounting the mounting portion, the movable terminal on the device body side is connected to the mounting portion. The movable terminal on the device main body side is connected to the ground when the movable terminal is moved by the pressure accompanying the attachment and abuts on the fixed terminal on the device main body side and the mounting portion is removed. And said that you are. According to a second aspect of the present invention, there is provided a connector device for electrically connecting a device main body and a detachable mounting portion to the device main body by respective connectors. A fixed terminal connected to the conductive pattern of the substrate and a movable terminal that is not connected to the conductive pattern when the mounting portion is removed are provided, and the connector on the mounting portion side has a conductive terminal on the mounting portion side. A fixed terminal connected to a pattern is provided, and when attaching the mounting portion, the movable terminal on the device main body is moved by pressing accompanying the mounting of the mounting portion, and the fixed terminal on the device main body side is fixed. While the terminal abuts, the terminal on the device body side is connected to the ground when the mounting part is removed, and is connected to the ground when the mounting part is mounted. Wherein the non-.

[0011]

According to the connector device of the present invention ,
When the attachment portion is attached to the device main body, the respective connectors are connected. At this time, the press
Therefore, the movable terminal on the device main body side moves and comes into contact with the fixed terminal on the device main body side. As a result, the fixed terminal on the device body side, the movable terminal, and the fixed terminal on the mounting portion side are brought into a conductive state.

Therefore, even when a short-circuit current or static electricity is generated between any of the movable terminals that are erroneously exposed to the outside when the mounting portion is removed from the main body of the device, these movable terminals can be removed. Since it is electrically insulated from the conductive pattern of the substrate on the device body side, no short-circuit current or static electricity flows. Also remove the mounting part
When unplugged, the terminals on the main unit side are connected to earth.
Therefore, when the mounting part is removed,
If a short-circuit current or static electricity is generated at the terminals on the
Also prevents short-circuit current and static electricity from entering the device body.
And do not charge the short-circuit current or static electricity. Therefore,
Immediately after the generation of static electricity,
Or exposed when the mounting part is moved closer to the device body.
Even if static electricity is generated at the terminals on the device body,
Short circuit current and static electricity can be prevented.
You. Therefore, there is no need for a protection circuit for preventing damage to the internal circuit of the device main body, which has been required conventionally.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 4 show an embodiment of the connector device of the present invention. As shown in these figures,
A grill body 40 serving as an attachment portion is detachably attached to the device body 30. Connector 3 on the device body 30 side
Reference numeral 2 denotes a conductive pattern of the printed circuit board 31 (not shown).
Are provided with a plurality of terminals 33 as fixed terminals.

The connector 32 has a plurality of resilient movable terminals 34, one end of which is supported by an insulator 32A.
Is provided. An insulator 35 is attached to the other end of each movable terminal 34. Further, the connector 32 has a plurality of connection terminals 36 connected to terminals on the grill main body 40 side and a projection insertion hole 3 into which a projection 44 described later is inserted.
7 are provided. Note that one end of the connection terminal 36 and one end of the movable terminal 34 are connected , and the movable terminal 34 is
Connected to the source.

On the other hand, the connector 42 on the grill main body 40 side is provided with a plurality of connection terminals 43 and projections 44 as fixed terminals connected to conductive patterns (not shown) of the printed circuit board 41.

The connector device having such a structure performs the following operation. When the grill main body 40 is mounted on the equipment main body 30, each projection 44 of the connector 42 on the grill main body 40 side is provided.
Is inserted into the projection insertion hole 37 of the connector 32 on the device body 30 side . At this time, the respective protrusions 44 on the connector 42 abut against the insulator 35 on the connector 32 and press it. As a result, the movable terminals 34 are elastically deformed and come into contact with the terminals 33, so that the terminals 33, the movable terminals 34, the connection terminals 36, and the connection terminals 43 are turned on.

On the other hand, when the grill main body 40 is removed from the equipment main body 30, the pressing force of the projection 44 against the insulator 35 is released, and each movable terminal 34 returns to a predetermined position.
The electrical connection to the terminal 33 is broken. Therefore,
When the grill main body 40 is detached from the equipment main body 30, since the electrical connection between the connection terminals 36 and the terminals 33 exposed to the outside is disconnected, one of the connection terminals 36 may be erroneously short-circuited. Even when the connection terminal 36 and the conductive pattern of the printed circuit board 31 are in a non-conductive state, even if the static electricity flows from any of the connection terminals 36, the internal circuit of the device body 30 may be damaged. It is surely prevented.

As described above, in this embodiment, the device body 3
A plurality of terminals 33 connected to the conductive pattern of the printed circuit board 31 on the side of the connector 32; a movable terminal 34 having an insulator 35 and connected to these terminals 33;
A connection terminal 36 connected to the connection terminal 43 of the connector 42 on the 0 side is provided. On the other hand, connector 4 of grill body 40
On the second side, a connection terminal 43 and a projection 44 connected to the conductive pattern of the printed board 41 were provided.

Accordingly, when the grill main body 40 is mounted on the equipment main body 30, the terminals 33, the movable terminals 34, the connection terminals 36, and the connection terminals 43 are brought into a conductive state, and the grill main body 40 is removed from the equipment main body 30. In this case, the conduction state of the terminal 33 to the movable terminal 34 to the connection terminal 36 to the connection terminal 43 is cut off.

Therefore, the grill main body 40 is connected to the equipment main body 3.
Even if the connection terminal 36 is removed from the connection terminal 36 and the connection terminal 36 is exposed to the outside, the conduction state between the connection terminal 36 and the conductive pattern on the printed circuit board 31 can be cut off by the return force of the movable terminal 34, so that any one of Even if the connection terminal 36 is short-circuited or static electricity is generated, damage to the internal circuit of the device main body 30 is reliably prevented.

As a result, the need for a protection circuit for preventing damage to the internal circuit of the device main body, which has been required conventionally, is eliminated, and the cost of the device can be reduced. In addition, since the protection circuit is not required, the space occupied by the protection circuit on the substrate becomes free, so that the substrate can be effectively used.

In this embodiment, the movable terminal 3
4 is pressed by the projection 44 on the grill body 40 side to make contact with the terminal 33. However, the present invention is not limited to this example, and the terminal 33 is omitted, and the movable terminal 34 is directly in contact with the conductive pattern of the printed circuit board 31. In this case, the number of parts can be reduced, so that the cost can be further reduced.

FIGS. 5 to 8 show another embodiment in which the configuration of the connector device shown in FIGS. 1 to 4 is changed. In the drawings described below, portions common to those in FIGS. 1 to 4 are denoted by the same reference numerals, and redundant description will be omitted.

As shown in these figures, the connector 32 of the device main body 30 is provided with a plurality of terminals 33 attached to a printed circuit board 31. Further, the connector 32 is provided with a plurality of movable terminals 34 to which the insulator 35 is attached and connection terminals 36 whose ends are connected to the movable terminals 34. Further, the printed circuit board 31 is connected to the connector 32.
35A connected to a ground line (not shown)
And a projection insertion hole 37. When the grill main body 40 is detached from the equipment main body 30, the head of the movable terminal 34 comes into contact with the conductor 35A.

On the other hand, the connector 42 of the grill main body 40 is provided with a plurality of connection terminals 43 and projections 44. In the connector device having such a configuration, the device body 30
When the grill main body 40 is attached to the device main body 30 , each protrusion 44 of the connector 42 on the grill main body 40 side is
It is inserted into the second protrusion insertion hole 37. At this time, the respective protrusions 44 on the connector 42 abut against the insulator 35 on the connector 32 and press it. As a result, the movable terminals 34 are elastically deformed and come into contact with the respective terminals 33, so that the terminals 33, the movable terminals 34, the connection terminals 36, and the connection terminals 43 are turned on.

On the other hand, when the grill main body 40 is detached from the equipment main body 30, the pressing force of the projection 44 against the insulator 35 is released, so that each movable terminal 34 returns to a predetermined position.
The connection with the terminal 33 is disconnected. At this time, since the head of each movable terminal 34 contacts the conductor 35A, the connection terminal 36 exposed to the outside is connected to the movable terminal 34 and the conductor 3A.
5A is connected to the ground line of the printed circuit board 31.

As described above, in this embodiment, the conductor 32A connected to the ground line of the printed circuit board 31 is provided on the connector 32 on the device main body 30 side.
When the grill main body 40 is detached, the connection terminal 36 exposed to the outside is grounded by bringing the head of each movable terminal 34 into contact with the conductor 35A.

Therefore, even if static electricity flows from any of the connection terminals 36, such static electricity can be released to the ground line side of the printed circuit board 31, so that the internal circuit of the device body 30 can be more reliably damaged. Can be prevented. FIG. 9 shows another embodiment in which the configuration of the connector device shown in FIG. 1 to FIG. 4 is changed. A plurality of terminals 33 and a plurality of movable A terminal 34A is provided.
The intermediate portion 34a of each movable terminal 34A is bent in a letter shape toward the outside. Chassis 30A of device body 30
Is provided with a conductor 35B.

When the grill main body 40 is detached from the equipment main body 30, the head of the movable terminal 34A comes into contact with the conductor 35B, so that the movable terminal 34A
Are set to the same potential (ground level) as the chassis 30A. On the other hand, the grill main body 40 is provided with a connector 42 attached to a printed circuit board (not shown). The movable terminal 34 is connected to the connector 42.
A plurality of connection terminals 43 connected to A are provided.
The intermediate portion 43a of each connection terminal 43 is bent in a convex shape toward the outside.

In the connector device having such a configuration, when the grill main body 40 is mounted on the equipment main body 30, the grill main body 4 is mounted.
The connection terminal 43 on the 0 side is a movable terminal 34A on the device body 30 side.
Abut. At this time, the intermediate portion 43a of the connection terminal 43 presses the intermediate portion 34a of the movable terminal 34A, so that the head of the movable terminal 34A contacts the terminal 33. Thereby, the terminal 33 to the movable terminal 34A to the connection terminal 43 are brought into a conductive state.

On the other hand, when the grill main body 40 is removed from the equipment main body 30, the pressing force of the intermediate portion 43a of the connection terminal 43 against the intermediate portion 34a of the movable terminal 34A is released, and each movable terminal 34A returns to a predetermined position. At this time, the head of the movable terminal 34A contacts the conductor 35B, and the movable terminal 34A
A is at the same potential (ground level) as the chassis 30A.

As described above, in this embodiment, the device body 3
0, the grill body 40 is attached.
The device body 3 is connected to the intermediate portion 43a of the connection terminal 43 on the 0 side.
The intermediate portion 34a of the 0-side movable terminal 34A was pressed, and the head was brought into contact with the terminal 33. On the other hand, when the grill main body 40 is detached from the device main body 30, the intermediate portion 4 of the connection terminal 43 is connected to the intermediate portion 34a of the movable terminal 34A.
3A, the movable terminals 34A are returned to predetermined positions, and the heads of the movable terminals 34A are brought into contact with the electric conductors 35B, whereby the movable terminals 34A are moved to the chassis 3A.
The potential (ground level) was the same as 0 A.

Therefore, in this embodiment, the projections 44 on the connector 42 side are not required as compared with the above embodiments, and the function of the movable terminal 34 and the connection terminal 36 on the equipment body 30 side is provided in the movable terminal 34A. As a result, the configuration can be made very simple, and the cost can be further reduced.

FIG. 10 shows another embodiment in which the configuration of the connector device shown in FIG. 9 is changed. A plurality of terminals 33 and a plurality of movable parts exposed to the outside are provided on a printed circuit board 31 on the device body 30 side. A terminal 34B is provided. At a position near one end of each movable terminal 34B, there is provided a projection 34b which is bent in a V-shape toward the outside. A conductor 35B is attached to the chassis 30A of the device main body 30.

On the other hand, the connector 42 on the side of the grill main body 40 is provided with a terminal 43 B attached to the printed circuit board 41. The connector 42 is provided with a plurality of movable terminals 43A connected to the connection terminals 34B. One end of each movable terminal 43A is attached to an insulator 42A provided inside the connector 42. At a position near the other end of each movable terminal 43A, there is provided a projection 43b which is bent in a V-shape toward the outside. A conductor 40a is attached to the chassis 40A of the grill main body 40.

In the connector device having such a configuration, when the grill main body 40 is mounted on the equipment main body 30, the grill main body 4 is mounted.
The movable terminal 43A on the 0 side is the movable terminal 34 on the device body 30 side.
Contact B. At this time, the protrusion 43b of the movable terminal 43A
Abuts against the other end of the movable terminal 34B, and the head of the movable terminal 34B contacts the terminal 33. At the same time,
The protrusion 34b of the movable terminal 34B comes into contact with one end of the movable terminal 43A, and the head of the movable terminal 43A is connected to the terminal 43B.
Contact.

As a result, the terminal 33 to the movable terminal 34B
The movable terminals 43A and 43B are turned on. On the other hand, when the grill main body 40 is detached from the device main body 30, the pressing force of each of the projection 43b of the movable terminal 43A and the projection 34b of the movable terminal 34B is released.
Each movable terminal 43A and movable terminal 34B return to the home position, and their heads abut against the conductor 40a and the conductor 35B.

As a result, the movable terminals 34B and 43A of the apparatus main body 30 and the grill main body 40 are at the ground level. Thus, in this embodiment,
When the grill main body 40 is detached from the equipment main body 30, the movable terminal 43A on the grill main body 40 side is brought into contact with the conductor 40a attached to the chassis 40A, and the movable terminal 43
Since A is at the ground level, even if static electricity flows into the movable terminal 43A for some reason,
The microcomputer inside the grill body can be prevented from being damaged. Similarly, in the device body, the connection between the terminal 33 and the movable terminal 34B is released, and the movable terminal 34B comes into contact with the conductor 35B and is at the ground level. Therefore, damage to the internal circuit due to static electricity can be prevented.

[0039]

As described above, according to the connector device of the present invention, when the mounting portion is removed from the device body,
Even if a short-circuit current or static electricity occurs between any of the movable terminals that are accidentally exposed to the outside, these movable terminals are electrically insulated from the conductive pattern on the board on the equipment body side. No short-circuit current or static electricity flows. Also, when the mounting part is removed,
The terminal on the main unit side is connected to ground,
Terminal is exposed when the
Even if short-circuit current or static electricity is generated in the
Short-circuit current and static electricity
Do not charge current or static electricity. Therefore, immediately after the generation of static electricity
When the mounting part is attached to the main body of the device or when the mounting part is
Terminals on the main unit that are exposed when approaching the main unit
Even if static electricity is generated in the
Static electricity can be prevented from flowing. This eliminates the need for a protection circuit for preventing breakage of the internal circuit of the device main body, which has been required conventionally, so that the cost of the device can be reduced and the space on the board can be used effectively.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the connector device of the present invention.

FIG. 2 is a plan view showing a state where a connector on a grill main body side is mounted on a connector on a device main body side in FIG. 1;

FIG. 3 is a sectional view showing the connector device of FIG. 1;

FIG. 4 is a cross-sectional view showing a state in which the connector on the grill main body side is mounted on the connector on the appliance main body side in FIG. 1;

FIG. 5 is a sectional view showing another embodiment in which the configuration of the connector device of FIG. 1 is changed.

6 is a cross-sectional view showing a state in which the connector on the grill main body side is attached to the connector on the appliance main body side in FIG. 5;

FIG. 7 is a plan view showing the connector on the device main body side of FIG. 5;

8 is a side view showing the connector on the device main body side of FIG. 5;

FIG. 9 is a sectional view showing another embodiment in which the configuration of the connector device of FIG. 1 is changed.

FIG. 10 is a sectional view showing another embodiment in which the configuration of the connector device of FIG. 9 is changed.

FIG. 11 is a diagram showing an example of a conventional connector device.

[Explanation of symbols]

 Reference Signs List 30 device main body 40 grill main body 31, 41 printed circuit board 33, 43B terminal 32, 42 connector 32A insulator 34, 34B, 43A movable terminal 36 connection terminal 44 protrusion

Claims (2)

(57) [Scope of request for utility model registration] 1. A connector device for electrically connecting a device main body and a detachable mounting portion to each other by respective connectors, wherein the connector on the device main body side has a conductive pattern on a substrate on the device main body side. And a movable terminal that is not connected to the conductive pattern when the mounting portion is removed. The connector on the mounting portion side is connected to the conductive pattern on the mounting portion side. fixed terminals are provided with, when mounting the mounting portion, the said apparatus main body
The movable terminal is movable by the pressure accompanying the mounting of the mounting portion,
Abuts against the fixed terminals of the device body, when removed the mounting portion, the said apparatus main body
A connector device, wherein the movable terminal is connected to the ground. 2. A connector device for electrically connecting a device body and a detachable mounting portion to each other by respective connectors, wherein the connector on the device body side has a conductive pattern on a substrate on the device body side. a fixed terminal connected to the mounting portion
Connected to the conductive pattern when removed
There is no movable terminal provided, and the connector on the mounting portion side is provided with a fixed terminal connected to the conductive pattern on the mounting portion side, and when mounting the mounting portion, the connector on the device body side
The movable terminal is movable by the pressure accompanying the mounting of the mounting portion,
When the terminal on the device main body side comes into contact with the fixed terminal on the device main body side and the mounting portion is removed,
Is connected to ground and the mounting part is
A connector device characterized in that it is not connected to the ground when the connector is turned.