JP2001103706A - Electric cable fixing structure for motor - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To increase the degree of freedom of routing of an electric cable connected to a motor and obtain excellent versatility. A mounting surface for positioning and fixing a mounting portion provided at a distal end of an electric cable is formed on a cover for covering a connection recess formed in a case main body containing a motor. By changing the directional direction and the inclination angle of the mounting surface 16a, the connection recess 5a of the electric cable 11 is changed.
Can be set freely.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor electric cable fixing structure in which a connection portion provided on a case body for housing a motor is covered with a cover, and an electric cable is fixed to the cover.

[0002]

2. Description of the Related Art In general, in a hybrid vehicle, an electric vehicle, and the like, an electric cable connected to a traveling motor is often directly fixed to a case body that houses the traveling motor, and the traveling motor has a high voltage of about 240 V. Therefore, the electric cable having a relatively large diameter is used.

Therefore, when the electric cable is connected to the traveling motor, the electric cable is fixed to a case body that houses the traveling motor in consideration of vibration resistance and the like. in this case,
Since the electric cable has a relatively large diameter, it cannot be bent at an acute angle, and must be attached to the case body at an angle having a certain margin.

Around the power unit in which the traveling motor and the transmission are integrated, relatively large peripheral devices such as an inhibitor switch connected to a shift lever to detect a shift position, and auxiliary devices are arranged. Therefore, the routing position when the electric cable is connected to the case body is naturally determined.

[0005] Therefore, conventionally, at the stage of designing the case main body, the direction in which the electric cable is approached is grasped, and a mounting hole is formed at a position along the direction.

[0006]

However, when the connection direction of the electric cable is grasped at the design stage and a mounting hole is formed in the case body in advance along the connection direction, then,
If the outfitting of peripheral devices such as inhibitor switches and auxiliary equipment in the engine chamber is changed, the wiring direction of the electric cable must be re-established, and the mounting direction of this electric cable to the case body is changed. As a result, ,
There is a disadvantage that the design of the case body must be changed.

[0007] Also, leaving the wiring of the electric cable as it is,
When replacing the case body with the built-in motor with another model, the layout of the case body should be considered according to the direction in which the electric cable is facing, since the direction in which the electric cable is facing is already fixed. And the degree of freedom in design is limited.

Further, when the mounting hole is directly formed in the case main body, there is a problem that the degree of freedom of the routing of the electric cable is restricted due to restrictions in manufacturing and the like.

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention increases the degree of freedom of electric cable routing without changing the design of the case body, and can easily respond to changes in peripheral devices, and is a motor with excellent versatility. An object of the present invention is to provide an electric cable fixing structure.

[0010]

In order to achieve the above object, a first electric cable fixing structure for a motor according to the present invention comprises:
A connection part for connecting a terminal provided at the end of the electric cable is provided on a case body containing the motor, and a mounting part provided at the end of the electric cable is positioned and fixed to a cover covering the connection part. The mounting surface is formed.

In such a configuration, since the mounting surface for positioning and fixing the mounting portion provided at the end of the electric cable is formed on the cover covering the connecting portion provided on the case body, the directional direction of the mounting surface is provided. By changing the inclination angle, it is possible to freely set the directivity direction with respect to the connection part of the electric cable by replacing only the cover.

The second electric cable fixing structure for the motor is as follows.
In the first electric cable fixing structure for a motor, a work window for exposing the connection portion is formed in the cover, and the work window is closed with a removable lid. .

In such a configuration, the connection work of the electric cable is performed through the work window formed in the cover, and when the connection work is completed in a predetermined manner, the work window is closed with the lid.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the overall configuration of a power unit provided in a hybrid vehicle.

Reference numeral 1 in FIG. 1 denotes an engine chamber of a hybrid vehicle, in which a power unit 2 is mounted. This hybrid vehicle is of a type that uses both an engine and a motor, and the power unit 2 has an engine 3
And a transmission unit 4, and a motor (power generation / combination motor) 6 which is directly connected to the engine 3 and serves also as a generator for performing start-up, power generation and power assist, and a front-rear motor (not shown) A traveling motor 7 which controls the function of the forward switching device and serves as a driving force source at the time of starting / reversing and recovers deceleration energy, and a transmission 8 which performs a shift and torque amplification to perform a power conversion function at the time of traveling. And are arranged.

Reference numeral 9 denotes an inverter having a function of converting generated AC into AC required for charging the battery and a function of converting DC from a battery (not shown) into AC for driving a motor. It is fixed in the engine chamber 1,
The inverter 9 and the motors 6 and 7 are connected to each other via three electric cables 10 and 11 for supplying a three-phase alternating current.

In addition, an inhibitor switch 12 is provided on the front upper portion of the case body 5. The inhibitor switch 12 is connected to a select lever (not shown) via a select cable 13, and is used to turn on / off a plurality of switches provided in the inhibitor switch 12.
By F, the select position of the select lever is detected.

In the engine chamber 1, various peripheral devices are provided around the power unit 2, and the inhibitor switch 12 is arranged so as to fit in the upper part of the case body 5 in order to avoid interference with each peripheral device. Has been established. Reference numeral 18 denotes a radiator.

One side of the upper part of the case body 5 has a connection recess 5a.
The terminal plate 14 is fixed to the connection recess 5 a, and the connection recess 5 a is covered with a cover 16. The cover 16 is fixed to the case main body 5 via bolts or the like, and has a mounting surface 16a for fixing a mounting portion 17 provided at a distal end portion of the electric cable 11 extending from the inverter 9 side. ing. Further, a work window 16b for exposing the terminal plate 14 is opened, and a lid 16c is mounted on the work window 16b and screwed.

As shown in FIG. 1, the electric cable 11 is routed from the inverter 9 in a state of avoiding interference with peripheral equipment, is exposed above the cover 16, and is attached to the tip of the electric cable 11. Cover the end face of the part 17 with the cover 1
6, a bracket 17a projecting from one side of the mounting surface 16a is screwed to the mounting surface 16a.

The mounting surface 16a is set in accordance with the mounting direction of the mounting portion 17 determined by the routing of the electric cable 11, and in the present embodiment, is formed so as to be inclined obliquely upward on the engine 3 side. ing.

A connection recess 5 formed in the case body 5
a indicates a terminal 1 attached to the end of the electric cable 11;
1a and a stator coil of the traveling motor 7 (not shown)
And a terminal 21a attached to the end of a power cable 21 extending from the terminal 21a.
They are fastened together on the terminal plate 14.

The case body 5 is provided with an electric cable 10 extending from the inverter 9 and connected to the power generating and motor 6. The connection structure of the electric cable 11 to the motor 7 is the same as that described above, and a description thereof will be omitted.

Next, the operation of the present embodiment having the above configuration will be described. First, the cover 16 is put on the connection recess 5a formed in the upper part of the case main body 5, and is fixed with bolts or the like. Then, a distal end surface of a mounting portion 17 provided at a distal end portion of the electric cable 11 is attached to a mounting surface 16a formed at an upper portion of the cover 16, and the terminal 11a protruding from the distal end surface is connected to a connection recess. 5a, the bracket 17a protruding to one side from the mounting portion 17 is fixed to the mounting surface 16a via a bolt or the like.

The terminal 21a of the electric cable 21 extending from a stator (not shown) of the traveling motor 7 and one end of the terminal plate 14 are fixed to the connection recess 5a in advance, and one end is connected to the inverter 9. The terminal 11a provided at the other end of the electric cable 11 is fastened together.

This connection operation is performed through a work window 16b formed in the cover 16, and the electric cables 11 and
After the connection operation of the connection 21 has been completed, the work window 16b is closed by the lid 16c, and the lid 16c is
With bolts or the like.

The inverter 9 and the traveling motor 7
Since the electric cable 11 for connecting to the stator has a relatively large cross-sectional area, it cannot be bent at an acute angle.
In addition, since various peripheral devices are arranged around the power unit 2, when the electric cable 11 is wired, the peripheral devices are bypassed, and the electric cable 11 faces the connection recess 5a at a reasonable angle. Therefore, when the design of the layout of the peripheral device is changed, or when the power unit 2 is replaced with another model, the routing of the electric cable 11 is also changed, and the angle of the electric cable 11 facing the connection recess 5a is changed. Is also changed.

The change of the wiring of the electric cable 11 can be changed by replacing the cover 16. That is, the inclination angle of the mounting surface 16a formed on the cover 16 or the directivity direction is formed in accordance with the connection direction of the changed electric cable 11, and the newly formed cover 16 is mounted on the connection recess 5a.

As a result, the layout of the peripheral device is changed,
Alternatively, when replacing the power unit 2 of a different model, the cover 16 can be replaced without changing the design of the case body 2.
It is possible to easily cope with the exchange of only the electric cable 11, and the degree of freedom of the routing of the electric cable 11 and the degree of design are increased,
Excellent versatility can be obtained.

[0030]

According to the first aspect of the present invention, the mounting surface for positioning and fixing the mounting portion provided at the distal end of the electric cable is provided on the cover for covering the connecting portion for connecting the electric cable formed on the case body. Since it is formed, the connection direction to the connection part of the electric cable can be freely set without changing the design of the case main body only by changing the directing direction or the inclination angle of this mounting surface, and the electric cable can be routed. The degree of freedom is enhanced, and it is possible to easily respond to changes in the layout of peripheral devices and the like, and to obtain excellent versatility.

According to the second aspect of the present invention, since the working window for exposing the connecting portion to the cover is formed, the connecting work of the electric cable can be performed through the working window, so that the workability is improved. Good.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing the overall configuration of a power unit provided in a hybrid vehicle.

FIG. 2 is a partial perspective view of a case main body.

FIG. 3 is a plan view of FIG. 2;

FIG. 4 is a sectional view taken along line IV-IV of FIG. 3;

[Explanation of symbols]

 5 Case body 5a Connection recess 7 Running motor 11 Electric cable 11a Terminal 16 Cover 16a Mounting surface 16b Working window 16c Lid 17 Mounting portion

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Tetsuo Kobayashi F-term in Fuji Heavy Industries, Ltd. 1-7-2 Nishishinjuku, Shinjuku-ku, Tokyo 5G361 AA06 AC03 AC13 AD01 5G363 AA16 BA01 DC02 5H605 AA02 AA03 BB05 CC02 CC09 DD17 EC01 GG06

Claims (2)

[Claims] A case body containing a motor is provided with a connection portion for connecting a terminal provided at a distal end of the electric cable, and a cover covering the connection portion is provided at a distal end portion of the electric cable. An electric cable fixing structure for a motor, wherein a mounting surface for positioning and fixing a mounting portion is formed. 2. The motor according to claim 1, wherein a work window for exposing the connection portion is formed in the cover, and the work window is closed by a removable lid. Power cable fixing structure.