JP2019036456A - Electronic equipment and connector connection structure - Google Patents

Abstract

To provide connector connection structure which is hardly detached against impact.SOLUTION: Th present description discloses an electric controller 10 (electronic equipment), and connection structure 2 of a connector 3. The connector 3 comprises: a resin connector shell 4; and a metal bracket 5. The connector shell 4 corresponds to a body of the connector. A flange 41 is provided in an end part 4a in contact with the electric controller 10, of the connector shell 4. A bolt hole 41a is provided in the flange 41. The connector shell 4 is fixed to the electric controller 10 with a bolt 6 inserted into the bolt hole 41a. The metal bracket 5 is fasted to the flange 41 together with the connector shell 4 by means of the bolt 6 fixing the connector shell 4 to the electric controller 10, and is fixed to a part other than the flange 41 of the connector shell 4.SELECTED DRAWING: Figure 2

Description

  The technology disclosed in this specification relates to a connection structure between an electronic device and a connector.

  A connector shell corresponding to an outer shell of a connector for connecting a cable to an electronic device is generally provided with a flange at an end portion in contact with the electronic device, and a bolt hole through which a bolt is passed is provided in the flange. The connector is fixed to the electronic device by a bolt inserted into the bolt hole. For example, Patent Document 1 discloses such a connector.

JP 2011-124061 A

  Connector shells are often made of resin. For example, in the case of an in-vehicle electronic device, if an impact is applied to the connector shell at the time of a collision, the resin flange may be broken and the connector may be detached from the electronic device. In the case of an electronic device that handles a high voltage, it is not preferable that a metal terminal to which a high voltage is applied is exposed. There is a demand for a connector connection structure that does not easily come off against an impact.

  The present specification discloses a connection structure between an electronic device and a connector. The connector includes a resin connector shell and a metal bracket. As described above, the connector shell corresponds to the main body of the connector. A flange is provided at the end of the connector shell that contacts the electronic device. The flange is provided with a bolt hole. The connector shell is fixed to the electronic device by a bolt inserted through the bolt hole. The metal bracket is fastened to the flange with a bolt for fixing the connector shell to the electronic device, and is fixed to a portion other than the flange of the connector shell.

  According to the above structure, even if the flange is cracked by an impact, the metal bracket prevents the connector shell from being detached from the electronic device. Therefore, the metal terminal inside the connector or the metal terminal on the electronic device side is prevented from being exposed.

  Details and further improvements of the technology disclosed in this specification will be described in the following “DETAILED DESCRIPTION”.

It is a perspective view of the connector fixed to the electric power controller. It is a perspective view of a connector which removed a bolt, a screw, and a metal bracket.

  A connection structure 2 according to an embodiment will be described with reference to the drawings. The connection structure 2 of the embodiment is applied to a power controller 10 and a connector 3 mounted on an electric vehicle. FIG. 1 is a perspective view of the connector 3 fixed to the power controller 10. The power controller 10 is a device that converts DC power of a battery mounted on an electric vehicle into three-phase AC suitable for driving a traveling motor. The connector 3 is attached to the tip of a power cable that transmits three-phase alternating current to the motor. In FIG. 1, only the connector 3 is shown, and the power cable is not shown. The three power cables that transmit the three-phase alternating current are connected to the three cable receptacles 12 arranged at the end of the connector 3. Hereinafter, for convenience of explanation, the positive Z-axis direction of the coordinate system in the figure is defined as “up”.

  The connector 3 is fixed to the power controller 10 with two bolts 6. FIG. 2 shows a perspective view of the connector 3 with the bolts 6 and screws 7 (described later) and the metal bracket 5 (described later) removed. Hereinafter, the connection structure 2 will be described with reference to FIG. 2 together with FIG.

  The connector shell 4 which is the main body of the connector 3 is made of resin. Two flanges 41 are provided at the end 4 a of the connector shell 4 that contacts the power controller 10. The flange 41 is provided with a bolt hole 41a (see FIG. 2). The connector shell 4 (connector 3) is fixed to the power controller 10 by the bolt 6 inserted through the bolt hole 41a.

  Two screws 7 are attached to the connector shell 4. The two screws 7 are fastening members that fix the connector housing 13 to the connector shell 4. The connector housing 13 passes through the connector shell 4, a cable receiving port 12 is provided at the upper end, and a live part (not shown) is provided at the lower end. Three electrode terminals are arranged in a live part (not shown), and each of the three power cables is connected inside the connector housing 13. The live part protrudes from the lower end of the connector shell 4, and when the connector 3 is connected to the power controller 10, it fits into the connection part on the power controller 10 side, and the electrode terminal on the connector side and the power control. The electrode terminal on the side of the vessel 10 is electrically connected. The connector housing 13 is also made of resin.

  The connector 3 includes a metal bracket 5. A hole 51 is provided at one end of the metal bracket 5, and a hole 52 is provided at the other end. As shown in FIG. 2, the metal bracket 5 is disposed along the side surface of the connector shell 4, the bolt 6 is inserted into the hole 51 at one end, and the screw 7 is inserted into the hole 52 at the other end. The One end of the metal bracket 5 is fastened to the flange 41 with a bolt 6, and the other end is fastened to the side surface of the connector shell 4 with a screw 7. In other words, one end of the metal bracket 5 is fastened to the flange 41 and the other end is fixed to a portion other than the flange 41 of the connector shell 4.

  The metal bracket 5 is provided to prevent the connector from being detached from the power controller 10 when the flange 3 is cracked due to the impact of the connector 3. For example, when a vehicle equipped with the power controller 10 collides, an impact may be applied to the connector 3 of the power controller 10. Since the connector shell 4 is made of resin, it may be damaged by impact. The bolt 6 that fixes the connector 3 (connector shell 4) to the power controller 10 is made of a strong steel material, and is less likely to come off from the power controller 10 due to the impact of a collision. However, since the flange 41 fixed by the bolt 6 is made of resin, if a collision load is applied to the connector shell 4, stress concentrates on the flange 41 at the fixed end and the flange 41 may be damaged. When the flange 41 is broken, the connector 3 may be disconnected from the power controller 10 while the bolt 6 is connected to the power controller 10. Since the connector 3 is a component for connecting a power cable that transmits a three-phase alternating current that drives a traveling motor, a high voltage is applied to the electrode terminal on the power controller 10 side. When the connector 3 is disconnected from the power controller 10, the electrode terminal to which a high voltage is applied is exposed. However, in the connection structure of the embodiment, one end of the metal bracket 5 is fixed to the bolt 6 and the other end is fixed to the connector shell 4 at a portion other than the flange 41. Therefore, even if the flange 41 is damaged, since the metal bracket 5 holds the connector shell 4 to the power controller 10, the possibility that the entire connector 3 is detached from the power controller 10 is extremely small.

  Points to be noted regarding the technology described in the embodiments will be described. The connector 3 of the embodiment has two flanges 41, the metal bracket 5 is fastened together with one flange 41, and the metal bracket is not disposed on the other flange 41. The connector 3 includes two metal brackets, and each of the two metal brackets 5 may be fastened to each of both flanges 41. Further, the connector shell may include three or more flanges, and in each flange, a bolt may be inserted into the bolt hole and fixed to the power controller. In that case, the metal bracket should just be fastened to at least one flange. The metal bracket is fastened together with the flange and fixed to the connector shell at a portion other than the flange.

  The metal bracket 5 also contributes to increasing the rigidity of the connector 3. That is, by providing the metal bracket 5, the vibration resistance characteristics of the connector 3 are improved.

  Although the connection structure disclosed in this specification is applied to a power controller and a connector for a power cable of an electric vehicle, the technology disclosed in this specification may be applied to other electronic devices and other connectors. Good.

  Specific examples of the present invention have been described in detail above, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above. The technical elements described in this specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology exemplified in this specification or the drawings can achieve a plurality of objects at the same time, and has technical usefulness by achieving one of the objects.

2: Connection structure 3: Connector 4: Connector shell 4a: End portion 5: Metal bracket 6: Bolt 7: Screw 10: Power controller (electronic device)
12: Cable receiving port 13: Connector housing 41: Flange 41a: Bolt hole 51, 52: Hole

Claims (1)

A connection structure between an electronic device and a connector,
The connector is
A resin connector shell provided with a flange having a bolt hole at an end in contact with the electronic device;
A metal bracket,
With
The connector shell is fixed to the electronic device by a bolt inserted into the bolt hole,
The metal bracket is fastened to the flange with the bolt, and is fixed to a portion other than the flange of the connector shell.

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