JP2013062077A - Connector mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector mounting structure causing no malfunction such as contact failure and connection failure even if external force such as vibration acts thereon and having excellent vibration resistance.SOLUTION: A peripheral device has a base for housing a receptacle in the inside thereof, a mounting recess which is bored in the base and in which the opening of the receptacle is exposed from the inner wall thereof and a plug can be housed, and a mounting lid 21 which can be fitted to the mounting recess with the mounting recess covered with it. The mounting lid 21 has: a lid body 41 brought into contact with the top face of the plug in the thickness direction thereof to hold the plug together with the bottom face of the mounting recess from the thickness direction thereof when it is fitted to the mounting recess; a coming-off prevention rib 44 extended in a direction perpendicular to the inserting direction of the plug with respect to the receptacle, and brought into contact with the rear end in the inserting direction of the plug inserted in the opening of the receptacle, when it is fitted to the mounting recess; and a connector holding rib 46 positioned in the vicinity of the opening of the receptacle and brought into contact with both end parts of the plug in the width direction thereof.

Description

  The present invention relates to a connector mounting structure provided in a device.

  For example, USB (Universal Serial Bus) is used as an interface for connecting devices and transmitting electrical signals. In this USB, a USB plug on the cable side is inserted into a USB receptacle on the device side to connect the device and the cable. (See Patent Documents 1 and 2).

  In such a structure that is connected with a USB connector, it is known that a connector removal prevention lid that can be inserted into a receptacle provided on a base and electrically connected to prevent the plug from being removed from the receptacle is removable. (For example, see Patent Document 3). In this connection structure, it is shown that the connector removal prevention lid has a groove portion corresponding to a location where the connector comes into contact with the plug, and the groove portion has a diameter that fits the contact portion of the plug. .

JP 2001-135413 A JP 2001-266993 A JP 2009-93958 A

  By the way, in a peripheral device mounted on a vehicle, a cable may be pulled or vibrated during traveling of the vehicle, and an external force such as this vibration may be transmitted to the plug. Then, there is a possibility that the plug may come off from the receptacle due to external force such as vibration, or contact failure with the receptacle may occur. In addition, when the plug vibrates, the receptacle that is soldered to the board in the device and supported by the positioning pins, etc., instead of screwing, vibrates, and stress is applied to the connection part with the board, resulting in poor connection. May occur.

  The present invention has been made in view of the above-described circumstances, and the object thereof is a connector mounting structure having excellent vibration resistance that does not cause defects such as poor contact and poor connection even when an external force such as vibration is applied. Is to provide.

In order to achieve the above-described object, the connector mounting structure according to the present invention is characterized by the following (1) or (2).
(1) A connector mounting structure in which a second connector is inserted into an opening of a first connector provided in a peripheral device,
The peripheral device includes a base for accommodating the first connector therein, and a recess formed in the base, the opening of the first connector being exposed from an inner wall and accommodating the second connector. And a lid that can be assembled to the recess while covering the recess,
When the lid is assembled to the recess, the lid contacts the upper surface in the thickness direction of the second connector and holds the second connector from the thickness direction with the bottom surface of the recess; When assembled, it extends in a direction crossing the insertion direction of the second connector with respect to the first connector, and is inserted into the rear end of the second connector inserted into the opening of the first connector. A pull-out prevention rib that contacts, and a connector holding rib that is located in the vicinity of the opening of the first connector and contacts both ends of the second connector in the width direction.
(2) In the connector mounting structure configured as described in (1) above, the peripheral device has a cable routing groove formed in the base and communicated with the recess.
At least a part of the cable routing groove extends in a direction intersecting the insertion direction of the second connector.

In the connector mounting structure configured as described in (1) above, the movement of the second connector in the thickness direction is restricted by the lid body of the lid and the bottom surface of the recess, and is opposite to the insertion direction of the second connector into the first connector. The movement of the second connector in the pulling direction is restricted by the removal prevention rib, and the movement of the second connector in the width direction is restricted by the connector holding rib in the vicinity of the opening of the first connector.
As a result, in the peripheral device mounted on the vehicle, the external force such as the vibration of the second connector in all directions can be reliably suppressed against the external force such as vibration when the vehicle travels. As a result, it is possible to eliminate such a problem that the second connector is disconnected from the first connector or a contact failure occurs. Further, external force such as vibration of the first connector can also be suppressed, and therefore, stress at the connection portion with the substrate in the device to which the first connector is connected due to external force such as vibration of the first connector. Thus, the connection failure between the first connector and the board can be eliminated.
In the connector mounting structure having the configuration (2), the second connector is caused by the frictional force generated between the cable routing groove and the cable extending from the second connector routed in the cable routing groove. The external force that acts in the direction of extraction from the first connector can be reduced. Thereby, it is possible to prevent the second connector from coming off more reliably.
In particular, since a part of the cable routing groove extends in a direction crossing the insertion direction of the second connector, the direction of the tensile force when the cable is pulled is set to the first connector of the second connector. The direction is different from the direction of insertion into the connector. Thereby, the transmission of the tensile force acting on the cable to the second connector can be reliably suppressed, and the second connector can be prevented from coming off. In addition, the action of the cable pulling force on the lid can be suppressed as much as possible, thereby preventing the second connector from coming off without excessively increasing the strength of the lid. Therefore, the cost can be reduced by simplifying the structure and reducing the number of parts.

  ADVANTAGE OF THE INVENTION According to this invention, even if external force, such as a vibration, acts, the connector mounting structure excellent in vibration resistance which does not produce malfunctions, such as a contact failure and a connection failure, can be provided.

  The present invention has been briefly described above. Further, details of the present invention will be further clarified by reading through the modes for carrying out the invention described below with reference to the accompanying drawings.

FIG. 1 is a perspective view of a mounting portion for explaining a connector mounting structure according to an embodiment. FIG. 2 is an exploded perspective view of a mounting portion for explaining the connector mounting structure according to the embodiment. FIG. 3 is a perspective view of the mounting recess in which the plug is accommodated. 4A and 4B are diagrams for explaining the structure of the mounting lid. FIG. 4A is a plan view of the mounting lid as viewed from the side where the mounting lid is assembled, and FIG. 4B is a partially broken view of the mounting lid. FIG.

  Hereinafter, an example of an embodiment according to the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of a mounting portion for explaining the connector mounting structure according to the embodiment, FIG. 2 is an exploded perspective view of the mounting portion for explaining the connector mounting structure according to the embodiment, and FIG. 4 is a perspective view of the mounting recess, FIG. 4 is a diagram for explaining the structure of the mounting lid, FIG. 4 (a) is a plan view of the mounting lid as viewed from the mounting side to the mounting recess, and FIG. It is the perspective view which fractured | ruptured a part of lid | cover.

  As shown in FIG. 1, the peripheral device 10 includes a mounting portion 12. The peripheral device 10 is, for example, a digital tachograph, a storage device, or a control device (ECU) mounted on a vehicle. A digital tachograph may handle a large amount of data such as an image. In such a case, an external storage device is mounted, and the storage device is connected to the digital tachograph by a cable. In such a peripheral device 10, the cable 13 is pulled out from the mounting portion 12 and is connected to another peripheral device. Thereby, electrical signals can be transmitted between the peripheral devices 10 via the cable 13.

  As shown in FIG. 2 and FIG. 3, the attachment portion 12 includes an attachment recess (recess) 20 formed in the base 11 of the peripheral device 10, and the attachment recess 20 in a state of covering the attachment recess 20. An attachment lid (lid) 21 that can be assembled is provided.

  The mounting recess 20 has a bottom surface 22, side surfaces 23 a and 23 b on both sides of the bottom surface 22, and end surfaces 24 a and 24 b on both ends of the bottom surface 22.

  A window portion 25 is formed on one end surface 24 a of the mounting recess 20, and a receptacle (first connector) 26 is disposed in the window portion 25. An opening 26 a of the receptacle 26 is formed in the window portion 25. Is exposed.

  Further, notches 27 are formed at the corners between the bottom surface 22 and both side surfaces 23 a and 23 b of the mounting recess 20.

  Further, a recess 29 is formed at the opposite position at the edge of both side surfaces 23a, 23b in the mounting recess 20.

  A plug (second connector) 31 is accommodated in the mounting recess 20. The plug 31 is provided at the end of the cable 13 and is formed in a rectangular shape in cross section. The receptacle 26 and the plug 31 are a USB receptacle and a USB plug constituting a USB connector for a USB (Universal Serial Bus) interface.

  The plug 31 has a connecting portion 32 at the tip, and the connecting portion 32 is inserted into the opening 26 a of the receptacle 26 and connected. The plug 31 is accommodated in the mounting recess 20 while being connected to the receptacle 26. In this state, the plug 31 is in a state where the lower surface side in the thickness direction is in contact with the bottom surface 22 of the mounting recess 20.

  As for this plug 31, the cable 13 is pulled out from the center part of the width direction in the rear-end part. Further, the rear end side of the plug 31 is gradually inclined toward the central cable 13 side in the width direction.

  The base 11 is provided with a cable routing groove 28 formed in an L shape in plan view. The cable routing groove 28 accommodates and holds the cable 13 drawn from the plug 31 connected to the receptacle 26.

  The cable routing groove 28 is opened to the mounting recess 20 at the other end surface 24 b of the mounting recess 20. In addition, a part of the cable routing concave groove 28 is bent sideways and opened at the side surface 11 a of the base 11. Accordingly, a part of the cable routing groove 28 bent to the side extends in a direction intersecting the insertion direction of the plug 31 into the receptacle 26 and is held in the cable routing groove 28. The cable 13 thus drawn is pulled out from the side surface 11 a of the base 11.

  As shown in FIG. 4A and FIG. 4B, the mounting lid 21 has a lid body 41 that is formed in a flat plate shape and has a rectangular shape in plan view. Engagement pieces 42 extending in the mounting direction to the mounting recess 20 are formed on both sides of the lid body 41. These engaging pieces 42 are formed with claw portions 43 on the outer surface side at the tips thereof. These engagement pieces 42 enter the attachment recess 20 when the attachment lid 21 is attached to the attachment recess 20, and the claw portion 43 engages with the notch 27. Thereby, the attachment lid 21 is fixed to the attachment portion 12 of the base 11 in a state in which the attachment lid 21 covers the attachment recess 20.

  As described above, when the mounting lid 21 is assembled to the mounting portion 12, the lid body 41 contacts the upper surface in the thickness direction of the plug 31 accommodated in the mounting recess 20, and the plug 31 is moved in the thickness direction with the bottom surface 22 of the mounting recess 20. Hold from.

  Further, the attachment lid 21 extends obliquely so as to intersect the insertion direction of the plug 31 with respect to the receptacle 26 when assembled in the attachment recess 20, and after the insertion direction of the plug 31 inserted into the opening 26 a of the receptacle 26. It has a pair of removal prevention ribs 44 that contact the ends. In addition, cable holding ribs 45 arranged in parallel to each other are formed at the rear end of the disconnection preventing rib 44, and a cable extending from the plug 31 connected to the receptacle 26 between the cable holding ribs 45. 13 is accommodated.

  The mounting lid 21 has a pair of connector holding ribs 46 that are located in the vicinity of the opening 26 a of the receptacle 26 and that are in contact with both ends of the plug 31 in the width direction.

  Next, a case where the plug 31 is attached to the peripheral device 10 having the mounting portion 12 will be described.

  First, the plug 31 is inserted into the mounting recess 20 with the connecting portion 32 facing the opening 26a of the receptacle 26, and the plug 31 is slid toward the receptacle 26 side. As a result, the connecting portion 32 of the plug 31 is inserted into the opening 26 a of the receptacle 26.

  Next, the cable 13 drawn from the rear end of the plug 31 is fitted into the cable routing groove 28.

  Thereafter, the attachment lid 21 is fitted so as to close the attachment recess 20, the claw portion 43 of the engagement piece 42 is engaged with the notch portion 27, and the attachment lid 21 is fixed to the attachment portion 12.

  Thus, when the attachment lid 21 is assembled to the attachment portion 12 so as to close the attachment recess 20, the lid body 41 of the attachment lid 21 and the bottom surface 22 of the attachment recess 20 come into contact with the upper and lower surfaces in the thickness direction of the plug 31. That is, the movement of the plug 31 in the thickness direction is restricted.

  Further, a removal prevention rib 44 is disposed on the rear end side in the insertion direction of the plug 31 into the receptacle 26 and is in contact with the plug 31, so that the movement of the plug 31 in the removal direction from the receptacle 26 is restricted.

  Further, the connector holding ribs 46 are arranged and contacted along both ends in the width direction of the plug 31 in the vicinity of the opening 26a of the receptacle 26, and the movement of the plug 31 in the width direction is restricted in the vicinity of the opening 26a of the receptacle 26. Is done.

  The cable 13 in the mounting recess 20 is housed and held between the cable holding ribs 45.

  In order to remove the plug 31 from the connected state as described above, first, a finger is put into the recess 29 formed in the edge of the both side surfaces 23a, 23b in the mounting recess 20, and the engagement piece 42 is pushed inward. The attachment lid 21 is pulled away from the attachment recess 20 while removing the claw portion 43 from the notch 27. Then, the attachment lid 21 is removed from the attachment recess 20. In this state, the plug 31 is gripped and pulled away from the receptacle 26 and pulled out, and the cable 13 is pulled out from the cable routing groove 28. As a result, the plug 31 is removed from the peripheral device 10.

  Thus, in the above connector mounting structure, the plug 31 can be easily attached to and detached from the peripheral device 10.

  As described above, according to the connector mounting structure according to the above embodiment, the movement of the plug 31 in the thickness direction is restricted by the lid body 41 of the mounting lid 21 and the bottom surface 22 of the mounting recess 20, and the receptacle of the plug 31. The movement of the plug 31 in the direction opposite to the insertion direction is restricted by the removal prevention rib 44, and the movement of the plug 31 in the width direction is restricted by the connector holding rib 46 near the opening 26 a of the receptacle 26.

  As a result, in the peripheral device 10 mounted on the vehicle, it is possible to reliably suppress external force such as vibration in all directions of the plug 31 against external force such as vibration when the vehicle travels. As a result, it is possible to eliminate such a problem that the plug 31 is detached from the receptacle 26 or a contact failure occurs. Further, external force such as vibration of the receptacle 26 can also be suppressed. Therefore, the external force such as vibration of the receptacle 26 suppresses the action of stress at the connection portion with the substrate in the device to which the receptacle 26 is connected, and the receptacle. Connection failure between the circuit board 26 and the substrate can be eliminated.

  Further, the external force acting in the direction of extracting the plug 31 from the receptacle 26 by the frictional force generated between the cable routing groove 28 and the cable 13 extending from the plug 31 routed in the cable routing groove 28. Can be reduced. As a result, the plug 31 can be more reliably prevented from coming off.

  In particular, since a part of the cable routing groove 28 extends in a direction crossing the insertion direction of the plug 31, the direction of the tensile force when the cable 13 is pulled is inserted into the receptacle 26 of the plug 31. The direction is different from the direction. Thereby, the transmission of the tensile force acting on the cable 13 to the plug 31 can be reliably suppressed, and the plug 31 can be prevented from coming off. In addition, the action of the tensile force of the cable 13 on the attachment lid 21 can be suppressed as much as possible, thereby preventing the plug 31 from coming off without excessively increasing the strength of the attachment lid 21. Therefore, the cost can be reduced by simplifying the structure and reducing the number of parts.

  Even if the tensile force of the cable 13 acts on the mounting lid 21, the tensile force is generated in the thickness direction of the engagement piece 42 formed on both sides of the lid body 41 and engaged with the notch 27. It acts in the width direction with high rigidity. Therefore, the tensile force from the cable 13 is reliably received by the engagement piece 42.

  Further, a sheet made of an elastic material such as rubber may be affixed to a contact portion (a broken line portion in FIG. 4A) of the attachment lid 21 with the plug 31. The transmission of external force such as vibrations of the motor can be held firmly while further reducing.

  In the above embodiment, the USB connector constituting the USB interface has been described as an example of the connector constituted by the receptacle 26 and the plug 31. However, the present invention can also be applied to the case where a connector having another configuration is used. Of course there is.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

10 Peripheral device 11 Base 20 Mounting recess (recess)
21 Mounting lid (lid)
26 Receptacle (first connector)
26a Opening 28 Cable routing groove 31 Plug (second connector)
41 Lid main body 44 Removal prevention rib 46 Connector holding rib

Claims (2)

A connector mounting structure in which a second connector is inserted into an opening of a first connector provided in a peripheral device,
The peripheral device includes a base for accommodating the first connector therein, and a recess formed in the base, the opening of the first connector being exposed from an inner wall and accommodating the second connector. And a lid that can be assembled to the recess while covering the recess,
When the lid is assembled to the recess, the lid contacts the upper surface in the thickness direction of the second connector and holds the second connector from the thickness direction with the bottom surface of the recess; When assembled, it extends in a direction crossing the insertion direction of the second connector with respect to the first connector, and is inserted into the rear end of the second connector inserted into the opening of the first connector. A connector mounting structure comprising: a coming-off prevention rib that contacts, and a connector holding rib that is located in the vicinity of the opening of the first connector and contacts both ends in the width direction of the second connector. The peripheral device has a cable routing groove formed in the base and communicating with the recess.
2. The connector mounting structure according to claim 1, wherein at least a part of the cable routing groove extends in a direction intersecting with the insertion direction of the second connector.

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