JP2013091400A - Positioning structure of on-vehicle electronic equipment - Google Patents

Abstract

A positioning structure that reduces the load of positioning work of an electronic device when the electronic device is fixed to a vehicle.
A positioning structure disclosed in this specification includes a fastening portion 10 provided in a casing of an electronic device 2 and a guide plate 24 provided in a fixing place of the electronic device. The fastening part 10 protrudes from the side surface of the housing of the electronic device. The fastening portion 10 is provided with a through hole 13 through which a bolt is inserted. Furthermore, the fastening part 10 has the front end flat side surface 14a parallel to the bolt insertion direction. The guide plate 24 extends from a boundary corresponding to the lower end edge of the front end flat side surface 14a of the fastening portion, which is a boundary of a fixed fixed region where the fastening portion 10 is fixed. Then, the guide plate 24 is fastened with a bolt provided in the through hole 13 of the fastening portion 10 and the scheduled fixing area when the electronic device 2 is arranged so that the tip flat side surface 14a of the fastening portion comes into surface contact with the guide plate 24. The holes 22 are provided so as to overlap.
[Selection] Figure 2

Description

  The present invention relates to a positioning structure for fixing an electronic device to a vehicle. Typically, the present invention relates to an electronic device positioning structure in an engine compartment.

  Various devices are mounted in the engine compartment (front compartment) of the vehicle. In particular, in electric vehicles (including hybrid vehicles) that have been actively developed in recent years, an increasing number of electronic devices are mounted in the engine compartment, such as an inverter that supplies AC power to a wheel driving motor. Thus, for example, Patent Document 1 proposes an improvement related to mounting an electronic device on a vehicle. Patent Document 1 discloses a technique for preventing damage to the high-voltage output device and external exposure even if the case is deformed or damaged due to an impact at the time of a vehicle collision.

JP 2009-154757 A

  In addition to electronic devices, the engine compartment is equipped with various devices such as engines and batteries. Also, the mounting location is not a wide flat surface, but is often a part of variously curved members such as a vehicle frame. When various devices are mixed and an electronic device is mounted in a narrow engine compartment, it is difficult to position the electronic device. The present specification provides a positioning structure that reduces a load of positioning work of an electronic device when the electronic device is fixed to a vehicle.

  The positioning structure for an in-vehicle electronic device disclosed in this specification includes a fastening portion provided in a casing of the electronic device and a guide plate provided in a fixed place of the electronic device. The fastening portion protrudes from the side surface of the casing of the electronic device. The fastening portion is provided with a through hole through which the bolt is inserted. Furthermore, a fastening part has a flat side surface parallel to a volt | bolt insertion direction. The guide plate extends from a boundary corresponding to the lower end edge of the flat side surface of the fastening portion, which is a boundary of the fixed fixed region to which the fastening portion is fixed. The guide plate is provided so that the through hole of the fastening portion and the bolt fastening hole provided in the fixed fixing region overlap when the electronic device is arranged so that the flat side surface of the fastening portion is in surface contact with the guide plate. ing.

  By adopting the above positioning structure, simply place the electronic device in the planned fixing area by pressing the flat side of the fastening part against the guide plate. The device can be positioned. The electronic device can be easily positioned.

  In the positioning structure disclosed in the present specification, it is further preferable that the fastening portion of the electronic device is composed of an upper portion and a lower portion having the following characteristics. The upper portion extends in parallel to the center line of the through hole through which the bolt passes, and has a tip side surface that is curved in a cross section perpendicular to the center line. The lower portion is located on the lower side of the upper portion and has a flat side surface that continues below the tip side surface. Providing a lower portion with a large mass under the upper portion has an effect of lowering the position of the center of gravity of the fastening portion. If the position of the center of gravity is lowered, vibration transmitted from the vehicle to the electronic device via the fastening portion can be attenuated.

It is a perspective view of an electronic device. It is the perspective view which expanded the fixation plan area | region and the fastening part of an electronic device. It is a typical top view of a fixed plan area and electronic equipment. It is sectional drawing in the IV-IV line of FIG. FIG. 4 is a cross-sectional view corresponding to the line IV-IV in FIG. 3, and is a cross-sectional view in a state where an electronic device is installed in a fixed scheduled area.

  The positioning structure of the embodiment will be described with reference to the drawings. FIG. 1 is a perspective view of an inverter 2 fixed to a vehicle. It is an example of the electronic device which the inverter 2 mounts in a vehicle. The inverter 2 is a device that is mounted on an electric vehicle and supplies AC power to a wheel driving motor. The fastening portion 10 protrudes from one side surface of the inverter 2. In addition, although there exists the same fastening part on the opposite side of the fastening part 10, below, it pays attention only to the fastening part 10, and abbreviate | omits description about another fastening part.

  The inverter 2 is mounted on the front compartment of the vehicle. FIG. 2 shows a partially enlarged view of the fastening part 10 and a partial perspective view of the vicinity of the fixing base 20 (fixed place) of the fastening part 10 (inverter 2). FIG. 2 shows that the fastening portion 10 of the inverter 2 approaches the fixing base 20 before fixing. The fixed base 20 is attached in advance to the frame 4 of the electric vehicle. The positioning structure 100 of the present embodiment includes a fastening portion 10, a fixing base 20, and a guide plate 24 (described later).

  The coordinate system shown in the drawing will be described. The Z axis faces the vertical direction, the X axis faces the front of the vehicle, and the Y axis faces the vehicle lateral direction. The direction indicated by each axis of the coordinate system is common to all the drawings.

  FIG. 3 is a plan view of the vicinity of the fastening portion 10 and the fixing base 20. FIG. 3 is a rewritten plan view of the perspective view of FIG. 2 viewed from the Z-axis direction. However, in FIG. 3, the components of FIG. 2 are simplified. FIG. 4 shows a cross section taken along line IV-IV in FIG. 4 corresponds to a cross section taken along line IV-IV in FIG. FIG. 5 is a cross-sectional view seen from the same viewpoint as the cross-sectional view of FIG. 4, but shows a state where the fastening portion 10 is positioned on the fixing base 20 and the inverter 2 is fixed to the frame 4 with bolts 32.

  The fastening part 10 protruding from the side surface of the inverter 2 will be described. The fastening portion 10 is provided with a through hole 13 through which a bolt for fixing the inverter 2 is passed. The through-hole 13 extends in the vertical direction (Z-axis direction in the figure) when the inverter 2 is mounted on the vehicle. The fastening part 10 is divided into an upper part 12 and a lower part 14 in the vertical direction. The upper portion 12 extends in parallel with the center line CL1 of the through hole 13 in the Z direction, and has a tip curved side surface 12a that is curved in the XY cross section. The lower part 14 has a tip flat side surface 14a. The tip flat side surface 14 a is connected to the tip curved side surface 12 a of the upper portion 12. As is apparent from the plan view of FIG. 3, when viewed in the XY plane, the boundary line of the distal curved side surface 12 a and the boundary line of the distal flat surface 14 a are in contact with each other at the distal end of the fastening portion 10.

  The fixed base 20 fixed to the frame 4 of the vehicle will be described. The upper surface of the fixing base 20 corresponds to a planned area where the fastening portion 10 of the inverter 2 is fixed. The fixing base 20 is provided with a bolt fastening hole 22 for fixing the fastening portion 10 (inverter 2), and a nut 31 is fixed to the back side of the upper surface of the fixing base 20.

  The guide plate 24 will be described. The guide plate 24 is fixed to the frame 4 of the vehicle, and extends along the edge 20 a of the fixed base 20. The edge 20a of the fixing base 20 corresponds to the boundary of the fixed fixing region of the fastening part 10, and when the fastening part 10 is positioned on the fixing base 20, the lower edge of the tip flat side surface 14a of the fastening part 10 Corresponding site. One surface of the guide plate 24 (surface facing the fastening portion 10) is composed of a lower side surface 24a and an upper side surface 24b. The lower side surface 24a extends in parallel to the center line CL2 of the bolt fastening hole 22 from the fixed region boundary 20a corresponding to the lower end edge of the tip flat side surface 14a of the fastening portion 10. The upper side surface 24b is a surface continuous with the lower side surface 24a, and is inclined in a direction away from the center line CL2 of the bolt fastening hole 22, as shown in FIG.

  When the inverter 2 is arranged such that the front end flat side surface 14a of the fastening portion 10 is in surface contact with the lower side surface 24a of the guide plate 24, the guide plate 24 is inserted into the through hole 13 and the fixing base 20 provided in the fastening portion 10. It is provided so that the provided bolt fastening holes 22 overlap.

  The function of the guide plate 24 will be described. When the inverter 2 is mounted on the vehicle, the operator lowers the inverter 2 while bringing the tip flat side surface 14 a of the fastening portion 10 into surface contact with the lower side surface 24 a of the guide plate 24. The inverter 2 is lowered until the lower surface of the fastening portion 10 is in contact with the upper surface of the fixed base 20 as it is. If the lower surface 24a of the fastening part 10 is placed on the upper surface of the fixed base 20 while the front end flat side surface 14a of the fastening part 10 is in surface contact with the lower side surface 24a of the guide plate 24, the through hole 13 and the bolt fastening hole 22 of the fastening part 10 will be obtained. (See FIG. 5). A straight line CL3 in FIG. 5 is obtained by overlapping the center line CL1 (see FIG. 4) of the through hole 13 of the fastening portion 10 with the center line CL2 (see FIG. 4) of the bolt fastening hole 22 provided in the fixing base 20. . Therefore, as shown in FIG. 5, the bolt 32 can be smoothly passed through the through hole 13 and the bolt fastening hole 22. Thus, the inverter 2 can be easily positioned at a predetermined fixed position even in a narrow space by the fastening portion 10 and the guide plate 24 having the tip flat side surface 14a. The positioning structure 100 of the present embodiment reduces the load of positioning work when the inverter 2 (on-vehicle electronic device) is mounted on the vehicle.

  Further, even if the inverter 2 rotates in the XY plane and the fastening portion 10 is displaced in the Y direction, the distal end flat side surface 14a is wider in the Y direction than the distal end curved side surface 12a. Compared to the case where the front end of the fastening portion 10 (the front end flat side surface 14a) is easily brought into contact with the lower side surface 24a of the guide plate 24, the rotation of the fastening portion 10 can be restricted. The XY plane is a plane parallel to the bottom surface of the fastening portion 10, in other words, a plane parallel to the top surface of the fixed base 20.

  The positioning structure 100 has the following advantages. The upper side surface 24b of the guide plate 24 is inclined outward (in a direction away from the fastening portion 10). When the inverter 2 is attached to a vehicle, when the tip flat side surface 14a is first brought into contact with the guide plate 24, the tip flat side surface 14a is first brought into contact with the upper side surface 24b opened outward, and the upper side surface 24b to the lower side surface 24a are left as they are. The inverter 2 may be taken down. The curved side surface of the guide plate 24 also contributes to improving the positioning workability of the inverter 2.

  The structure of the fastening part 10 also has the following effects. The fastening portion 10 includes an upper portion 12 having a curved tip side surface and a lower portion 14 having a flat tip side surface. By providing the lower part 14, the position of the center of gravity of the fastening part 10 is shifted downward as compared with the case where the lower part 14 is not provided. The inverter 2 is fixed to the vehicle (frame 4) via the fastening portion 10, but the vibration from the vehicle (frame 4) is not easily transmitted to the inverter 2 because the position of the center of gravity of the fastening portion 10 is low. Fastening part 10 which has the above-mentioned structure has the advantage that it is difficult to convey the vibration of vehicles to inverter 2 (electronic equipment).

  Points to be noted regarding the positioning structure 100 of the embodiment will be described. The object of positioning is not limited to the inverter 2. The positioning structure disclosed in the present specification is also preferably applied to, for example, a battery. The positioning structure disclosed in the present specification can be applied not only to an electric vehicle but also to a conventional engine vehicle.

  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: Inverter 4: Vehicle frame 10: Fastening portion 12: Upper portion 12: Tip curved side surface 13: Through hole 14: Lower portion 14a: Tip flat side surface 20: Fixing base 20
22: bolt fastening hole 24: guide plate 24a: lower side surface 24b: upper side surface 100: positioning structure

Claims (2)

In-vehicle electronic device positioning structure
A fastening portion that protrudes from the housing of the electronic device, has a through hole through which a bolt is inserted, and has a flat side surface parallel to the bolt insertion direction,
A guide plate that is provided at a fixed place of the electronic device and extends from a boundary corresponding to a lower end edge of the flat side surface, which is a boundary of a fixed fixed region to which the fastening portion is fixed;
With
A positioning structure characterized in that when an electronic device is arranged so that the flat side surface comes into surface contact with a guide plate, a through hole of a fastening portion and a bolt fastening hole provided in a fixed fixing region overlap.   The fastening portion is composed of an upper portion having a curved tip side surface extending parallel to the center line of the through hole, and a lower portion having the flat side surface continuing below the tip side surface. The positioning structure according to claim 1.

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