JP2021030795A - Electric rotating machine of vehicle - Google Patents

Abstract

To provide an electric rotating machine of a vehicle, which can protect a terminal support member in the event of a vehicle collision.SOLUTION: An electric rotating machine of a vehicle is a generator 6, is supported by mount members 30, 31 with respect to front side members 11c extending in the front-rear direction of the vehicle 11, is disposed adjacent to the inside of the front side members 11c in the vehicle width direction. The generator 6 has a terminal support member 42 that is mounted to an upper surface on the front side of the vehicle from a portion supported by the mount members 30, 31 and supports terminals connected to the generator 6, and a receiving member 42h for receiving a load applied from the mount member 30 to the terminal support member 42 when the generator 6 moves to the rear of the vehicle. The receiving member 42h is provided at a position in the terminal support member 42, which is on the rear side of the vehicle and outside in the vehicle width direction and is close to the mounting member 30.SELECTED DRAWING: Figure 8

Description

The present invention relates to a technical field of a rotating electric machine such as a motor or a generator mounted on a vehicle.

In recent years, vehicles using rotating electric machines such as motors and generators, specifically electric vehicles and hybrid vehicles, have been developed. Since such vehicles use high-voltage electric power, special safety measures against vehicle collisions are being studied. For example, Patent Document 1 discloses a technique for preventing disconnection of a high voltage power cable and damage to a connector. Specifically, in Patent Document 1, regarding the connector protection structure of the motor that protects the connector arranged near the side member of the motor case, the side member and the connector come into contact with each other due to bending deformation of the side member at the time of collision. It is disclosed that a metal protector is attached between the side member and the connector so as to cover the corners of the motor case and the connector.

Japanese Unexamined Patent Publication No. 2013-66327

By the way, in a general hybrid vehicle or the like, a heavy engine tends to be arranged at an end portion of a vehicle drive system in the vehicle width direction. However, in that case, the side on which the engine of the vehicle is arranged becomes heavy, and there is a problem that the weight balance between the left and right sides of the vehicle becomes poor. Further, since the heavy engine is arranged near the side surface of the vehicle, there is a problem that the moment of inertia around the yaw axis and the roll axis of the vehicle becomes large and the kinetic performance of the vehicle deteriorates.

In order to solve such a problem, for example, a rotating electric machine such as a generator may be arranged at the vehicle width direction end portion of the vehicle drive system, and the engine may be arranged at a position away from the vehicle width direction end portion. In this case, it is conceivable that the rotating electric machine is arranged adjacent to the inside of the front side member in the vehicle width direction, and the rotating electric machine is supported by the mount member with respect to the front side member. Further, in order to electrically connect the rotating electric machine to an external component (power conversion device, etc.), it is conceivable to attach a terminal support member for supporting the terminal connected to the rotating electric machine to the upper surface of the rotating electric machine. Be done. However, in that case, when the front part of the vehicle collides (for example, in the case of a pole collision), the rotating electric machine moves to the rear of the vehicle, and the terminal support member of the rotating electric machine interferes with the mounting member of the front side member. In some cases.

The present invention has been made to solve the above-mentioned problems of the prior art, and is supported by a front side member via a mount member, and is a terminal in a rotating electric machine of a vehicle having a terminal support member at the time of a vehicle collision. The purpose is to protect the support member.

In order to achieve the above object, the present invention is a rotating electric machine of a vehicle which is supported by a mounting member with respect to a front side member extending in the front-rear direction of the vehicle and is arranged adjacent to the inside of the front side member in the vehicle width direction. When the terminal support member attached to the upper surface of the rotating electric machine on the front side of the vehicle and supporting the terminal connected to the rotating electric machine and the rotating electric machine move to the rear of the vehicle. It also has a receiving member for receiving a load applied from the mounting member to the terminal supporting member, and the receiving member is provided at a position close to the mounting member on the rear side of the terminal support member and on the outer side in the vehicle width direction. , Characterized by.

In the present invention configured as described above, the rotating electric machine of the vehicle is supported by the front side member by the mounting member, and is arranged adjacent to the inside of the front side member in the vehicle width direction. Further, the rotating electric machine of the vehicle applies a terminal support member attached to the upper surface on the front side of the vehicle with respect to the mount member and a load applied to the terminal support member from the mount member when the rotating electric machine moves to the rear of the vehicle. It has a receiving member for receiving. In particular, the receiving member is provided at a position close to the mounting member on the rear side of the vehicle and outside in the vehicle width direction of the terminal support member. As a result, when the front part of the vehicle collides (for example, a pole collision) and the rotating electric machine moves to the rear of the vehicle, the load applied from the mount member to the terminal support member can be appropriately received by the receiving member. it can. Therefore, it is possible to more reliably prevent damage to the terminal support member due to interference between the terminal support member and the mount member at the time of a vehicle front collision.
The rotating electric machine of the vehicle in the present invention functions to generate electric power by being rotationally driven by an externally supplied electric force or by being rotationally driven by an externally supplied driving force. It is an electrical device equipped with a rotating shaft. Specifically, the rotating electric machine of a vehicle is a motor (electric motor) and / or a generator (generator).

In the present invention, the receiving member is preferably composed of a positioning member for positioning the terminal support member with respect to the case of the rotating electric machine.
According to the present invention configured as described above, the receiving member is also used as the positioning member, in other words, the receiving member is provided with a positioning function. According to such a receiving member, both the function of receiving the load applied to the terminal supporting member and the function of positioning the terminal supporting member can be realized by a simple configuration.

In the present invention, the receiving member is preferably provided on the outer periphery of the fixing member for fixing the terminal support member to the case of the rotary electric machine.
According to the present invention configured as described above, the receiving member and the fixing member can be provided on the same axis, and both of them can be appropriately arranged at a position close to the mount member.

In the present invention, preferably, the terminal support member has a substantially rectangular shape in a plan view, and the receiving member is provided at each of the two diagonal corners in the substantially rectangular shape.
According to the present invention configured as described above, since the receiving member as the positioning member is provided at each of the two diagonal corners of the terminal support member having a substantially rectangular shape, the terminal support member for the case of the rotating electric machine is provided. Can be reliably positioned.

In the present invention, preferably, a power conversion device electrically connected to the rotating electric machine via a terminal support member is provided inside the rotating electric machine in the vehicle width direction.
According to the present invention configured in this way, the harness (wiring) between the rotating electric machine and the power conversion device can be appropriately shortened.

In the present invention, preferably, the rotating shaft of the rotating electric machine is arranged so as to extend along the vehicle width direction.
According to the present invention configured as described above, when the rotating electric machine is arranged horizontally along the vehicle width direction, the above-mentioned effect can be obtained.

According to the present invention, in a rotating electric machine of a vehicle supported by a front side member via a mount member and having a terminal support member, the terminal support member can be protected at the time of a vehicle collision.

It is a top view which shows the state which mounted the vehicle drive device by embodiment of this invention on a vehicle. It is a top view of the vehicle drive device according to the embodiment of this invention. It is a front view of the vehicle drive device according to the embodiment of this invention. It is a perspective view which looked at the generator and converter by the embodiment of this invention from the diagonally upper left front. It is sectional drawing along the vehicle width direction of the mount member and the like by embodiment of this invention. A perspective view of a terminal support member according to an embodiment of the present invention is shown. The generator in the state where the terminal support member is removed according to the embodiment of the present invention is shown. A plan view of a terminal support member, a mount member, and a front side member of a generator according to an embodiment of the present invention is shown. It is sectional drawing along the vehicle vertical direction of the receiving member and the like by embodiment of this invention.

Hereinafter, the rotating electric machine of the vehicle according to the embodiment of the present invention will be described with reference to the accompanying drawings.

First, with reference to FIG. 1, the overall structure of the vehicle drive device including the rotating electric machine of the vehicle according to the present embodiment will be described. FIG. 1 is a plan view showing a state in which a vehicle drive device according to an embodiment of the present invention is mounted on a vehicle.

As shown in FIG. 1, the vehicle drive device 1 according to the present embodiment is mounted on the vehicle 11, and includes an engine (internal engine) 2, a drive motor 4, a generator (generator) 6 as a rotary electric machine, and a drive motor 4. A trans-axle 10 including a reduction mechanism (reduction gear) for decelerating the rotational output of the engine and a differential mechanism is integrated. In the present embodiment, basically, the drive shaft 12 of the vehicle 11 is driven by the driving force of the drive motor 4, and is not directly driven by the power generated by the engine 2.

Further, the vehicle driving device 1 is housed in a motor room 11a in front of the vehicle 11, and the motor room 11a is covered with a bonnet 11b. In particular, the drive motor 4, the trans-axle 10, the engine 2, and the generator 6 constituting the vehicle drive device 1 are arranged in this order in the vehicle width direction of the vehicle 11. That is, the vehicle drive device 1 is arranged between the front side members (body side frames) 11c on both sides of the vehicle 11 and below the bonnet 11b. Further, the drive motor 4 and the generator 6 are arranged adjacent to each other on the inner side in the vehicle width direction of the left and right front side members 11c, respectively.

In the engine 2, the intake air that has passed through the air cleaner 28 that removes dust in the air is supplied from the intake pipe 2a, and power is generated by burning the air-fuel mixture between the intake air and the fuel. Then, the input shaft of the generator 6 is driven by the power generated by the engine 2, and electric power is generated. The electric power generated by the generator 6 is stored as electric energy in the lithium ion battery 20 which is a storage battery. In this embodiment, a rotary piston engine is adopted as the engine 2. Further, the lithium ion battery 20 is provided, for example, in the lower part (bottom surface) of the vehicle 11.

The drive motor 4 is driven by the electric energy stored in the lithium ion battery 20 to drive the drive shaft 12 of the vehicle 11. The output shaft of the drive motor 4 is connected to the input shaft of the trans-axle 10 which is a reduction mechanism, and the rotational output of the drive motor 4 drives the drive shaft 12 via the trans-axle 10. Further, the drive motor 4 is configured to regenerate the kinetic energy of the vehicle 11 into electrical energy to generate AC power when the vehicle 11 is decelerated. In the present embodiment, an AC-driven permanent magnet motor is adopted as the drive motor 4. More specifically, the drive motor 4 has a rotor, a stator, an output shaft (rotary shaft), and the like (not shown), and rotationally drives the rotor when an alternating current is passed through the coils constituting the stator. In addition, the drive motor 4 generates AC power by rotationally driving the output shaft and rotor during deceleration of the vehicle 11 and causing an induced current to flow through the coils constituting the stator.

The generator 6 is configured to generate AC power by the power generated by the engine 2, and its input shaft is rotationally driven by the output shaft of the engine 2. The generator 6 is electrically connected to the converter 8c, and the AC power generated by the generator 6 is converted to direct current by the converter 8c and stored in the lithium ion battery 20. More specifically, the generator 6 has a rotor, a stator, an input shaft (rotating shaft), etc. (not shown), and when the rotor is rotationally driven by the driving force of the engine 2, an induced current is applied to the coils constituting the stator. Flows and generates AC power. The generator 6 corresponds to an example of the "rotating electric machine of a vehicle" in the present invention.

The trans-axle 10 includes a reduction mechanism (reduction gear) and a differential mechanism arranged between the drive motor 4 and the engine 2 in the width direction of the vehicle 11, and powers the drive motor 4 to the wheels of the vehicle 11 (not shown). ) Is provided in the middle of the transmission path. The rotation of the output shaft of the drive motor 4 is decelerated by the trans-axle 10 and transmitted to the wheels (not shown) via the drive shaft 12. In the present embodiment, the trans-axle 10 is used as the speed reduction mechanism, but a transmission having a speed change function may be used as the speed reduction mechanism.

The inverter 8b is arranged on the drive motor 4 (see also FIG. 3 below), and is configured to convert the DC power supplied from the lithium ion battery 20 into AC power. The electric power converted to alternating current by the inverter 8b is supplied to the drive motor 4 to drive the drive motor 4. Further, on the inverter 8b, a junction box 8e that houses terminals for connecting, branching, and relaying electric wires such as the inverter 8b, the converter 8c, and the lithium ion battery 20 is arranged (FIG. 3). .. As shown by the broken line in FIG. 1, the generator 6, the converter 8c, the junction box 8e, and the lithium ion battery 20 are electrically connected in this order.

The converter 8c is arranged on the engine 2 and is configured to convert the AC power generated by the generator 6 and the AC power regenerated by the drive motor 4 into DC power. In the present embodiment, the rotary piston engine is applied to the engine 2 as described above, but since the vertical size of such a rotary piston engine is relatively small, a sufficient space is formed above the engine 2. Therefore, the converter 8c can be arranged on the engine 2.

The inverter 8b and the converter 8c include power semiconductor elements such as switching IGBTs (insulated gate bipolar transistors), MOSFETs (MOS field effect transistors), and rectifying diodes (not shown above). It is composed of a circuit board. Further, the converter 8c corresponds to an example of the "power conversion device" in the present invention.

As described above, in the vehicle drive device 1 according to the present embodiment, the drive motor 4, the engine 2, and the generator 6 are arranged in this order in the vehicle width direction of the vehicle 11. As a result, since the relatively heavy engine 2 is located between the drive motor 4 and the generator 6, the left and right weight balance of the vehicle 11 is less likely to be lost, and it is possible to prevent the weight balance from becoming poor. Further, since the engine 2 is located between the drive motor 4 and the generator 6, the engine 2 is located relatively inside in the vehicle width direction, and the moment of inertia around the yaw axis and the roll axis of the vehicle 11 is reduced. It is possible to suppress the deterioration of exercise performance.

Further, in the vehicle drive device 1 according to the present embodiment, since the rotary piston engine is adopted as the engine 2, even if it is arranged between the drive motor 4 and the generator 6, it does not easily get in the way in the motor room 11a. Therefore, even when the engine 2 is arranged between the drive motor 4 and the generator 6, the space in the motor room 11a can be effectively utilized.

Next, with reference to FIGS. 2 and 3 (see also FIG. 1 as appropriate), the arrangement structure of each configuration of the vehicle drive device 1 according to the embodiment of the present invention will be described. FIG. 2 is a plan view (top view) of the vehicle drive device 1 according to the embodiment of the present invention. In FIG. 2, only the main parts of the components shown in FIG. 1 are shown (for example, the inverter 8b, the air cleaner 28, and the like are not shown). FIG. 3 is a front view of the vehicle drive device 1 according to the embodiment of the present invention. Also in FIG. 3, only the main parts of the components shown in FIG. 1 are shown (in FIG. 3, unlike FIG. 2, the inverter 8b, the air cleaner 28, and the like are shown).

In the vehicle drive device 1 according to the present embodiment, as shown in FIG. 3, an oil pan 2d is provided at the lower part of the engine body 2c in the front view, and the output shaft 2x (see the broken line in FIG. 3) of the engine 2 is provided. The drive motor 4 is offset from the output shaft 4d (see the broken line in FIG. 3) on the upper side of the vehicle. By arranging the output shaft 2x of the engine 2 offset above the output shaft 4d of the drive motor 4 in this way, the capacity of the oil pan 2d at the lower part of the engine body 2c can be appropriately secured. Normally, the output shaft 2x of the engine 2 is arranged at a substantially center position (center position between the upper end and the lower end of the engine 2) of the engine 2 in the vertical direction of the vehicle, and the output shaft 4d of the drive motor 4 is driven. The motor 4 is arranged at a substantially center position in the vertical direction of the vehicle (center position between the upper end and the lower end of the drive motor 4). Therefore, when the output shaft 2x of the engine 2 is offset upward with respect to the output shaft 4d of the drive motor 4, the center position of the engine 2 in the vehicle vertical direction is higher than the center position of the drive motor 4 in the vehicle vertical direction. Will be located in.

On the other hand, since the output shaft 2x of the engine 2 and the input shaft 6d of the generator 6 are connected, these output shafts 2x and the input shaft 6d are located on substantially the same axis (broken lines in FIGS. 2 and 3). reference).

Further, in the vehicle drive device 1 according to the present embodiment, as shown in FIG. 2, the front end portion of the engine 2 is located on the vehicle front side of the front end portion of the drive motor 4 in a plan view. As a result, in the event of a collision at the front of the vehicle, an object coming from the front toward the vehicle drive device 1 can be applied to the engine 2 before the drive motor 4, and the engine 2 appropriately protects the drive motor 4. be able to.

Further, in the vehicle drive device 1 according to the present embodiment, as shown in FIG. 2, the output shaft 2x of the engine 2 (see the broken line in FIG. 2) is the output shaft 4d of the drive motor 4 (in FIG. 2) in a plan view. The heat exchanger 2e as an auxiliary device (engine auxiliary device) of the engine 2 is arranged offset to the front side of the vehicle with respect to the dashed line of (See also Figure 3). Normally, the output shaft 2x of the engine 2 is arranged substantially at the center position of the engine 2 in the vehicle front-rear direction (the center position between the right end and the left end of the engine 2), and the output shaft 4d of the drive motor 4 is the drive motor 4. It is arranged at a substantially center position (center position between the right end and the left end of the drive motor 4) in the vehicle front-rear direction. Therefore, when the output shaft 2x of the engine 2 is offset forward with respect to the output shaft 4d of the drive motor 4, the center position of the engine 2 in the vehicle front-rear direction is ahead of the center position of the drive motor 4 in the vehicle front-rear direction. Will be located in.

The heat exchanger 2e has an oil cooler for cooling the oil, a water pump for supplying water for cooling the oil to the oil cooler, an oil filter for removing impurities in the oil, and the like (these illustrations are shown). Omitted). The water pump is driven by the output shaft 2x of the engine 2, but if the shaft of the water pump is arranged on the same axis as the output shaft 2x, the dimension in the vehicle width direction becomes large, so the axis of the water pump is shifted from the output shaft 2x. (In this case, power is transmitted from the output shaft 2x to the shaft of the water pump via a chain). Therefore, the heat exchanger 2e including the water pump is provided inside the engine body 2c in the vehicle width direction, whereby the heat exchanger 2e is located in front of the drive motor 4 and the trans-askul 10.

After all, by arranging the output shaft 2x of the engine 2 offset in front of the output shaft 4d of the drive motor 4, a space can be formed in front of the drive motor 4 and the trans-axle 10. Then, using such a space, the heat exchanger 2e as described above is arranged (specifically, the heat exchanger 2e is arranged so as to overlap the transaxle 10 in the front view. ing). As a result, it is possible to appropriately suppress the increase in size of the vehicle drive device 1 in the vehicle width direction. Further, by arranging the heat exchanger 2e in front of the drive motor 4 and the trans-askul 10, in the event of a collision at the front of the vehicle, an object that comes toward the vehicle drive device 1 from the front is moved toward the drive motor 4 and the trans-askul 10. The heat exchanger 2e can be hit before the heat exchanger 2e, and the drive motor 4 and the trans-askul 10 can be appropriately protected by the heat exchanger 2e.

The heat exchanger 2e as described above is not limited to being used as an auxiliary device of the engine 2. The auxiliary device of the engine 2 is, for example, a device necessary for operating the engine 2, and in another example, a generator (alternator) or an injection pump driven by the power generated by the engine 2 can be applied. it can.

Further, in the vehicle drive device 1 according to the present embodiment, as shown in FIGS. 1 and 2, the converter 8c is arranged above the engine 2 and so as to overlap the upper surface of the engine 2 in a plan view. In particular, the outer end of the converter 8c in the vehicle width direction is located inside the outer end of the engine 2 in the vehicle width direction, and the front end of the converter 8c is located on the rear side of the vehicle than the front end of the engine 2. As a result, in plan view, the entire converter 8c overlaps the engine 2 (FIG. 2). By arranging the converter 8c in this way, it is possible to prevent the front side member 11c and the like from being deformed and interfering with the converter 8c at the time of a collision at the front of the vehicle. Specifically, in the event of a collision at the front of the vehicle, the deformed front side member 11c or the like can be applied to the engine 2 before the converter 8c, and the converter 8c can be appropriately protected by the engine 2.

Further, as shown in FIGS. 1 and 3, the inverter 8b and the junction box 8e are arranged above the drive motor 4 and so as to overlap the upper surface of the drive motor 4 in a plan view. Specifically, these are arranged on the drive motor 4 so that the outer ends of the inverter 8b and the junction box 8e in the vehicle width direction are located inside the outer ends of the drive motor 4 in the vehicle width direction. .. As a result, the inverter 8b and the junction box 8e can be appropriately protected by the drive motor 4 in the event of a collision at the front of the vehicle.

On the other hand, in the vehicle drive device 1 according to the present embodiment, as shown in FIGS. 1 and 3, the air cleaner 28 above the generator 6 is offset to the outside of the converter 8c in the vehicle width direction. .. As a result, it is possible to appropriately prevent the damaged air cleaner 28 from interfering with the converter 8c in the event of a collision at the front of the vehicle. Further, the intake pipe 2a connecting the air cleaner 28 and the engine 2 is arranged apart from the converter 8c so as to pass outside the converter 8c in the vehicle width direction and above the vehicle in the vertical direction. That is, the intake pipe 2a is connected to the converter 8c so that the intake pipe 2a does not overlap with the converter 8c in the plan view (FIG. 1) and the intake pipe 2a does not overlap with the converter 8c in the front view (FIG. 3). On the other hand, they are arranged apart from each other. As a result, it is possible to appropriately prevent the damaged intake pipe 2a from interfering with the converter 8c in the event of a collision at the front of the vehicle.

Next, with reference to FIG. 4, the electrical connection between the generator 6 and the converter 8c according to the embodiment of the present invention will be described. FIG. 4 is a perspective view of the generator 6 and the converter 8c according to the embodiment of the present invention as viewed from the diagonally upper left front.

As shown in FIG. 4, the generator 6 and the converter 8c are provided in the terminal support member 42 provided in the generator 6 (a member supporting the terminal connected to the generator 6 although details will be described later) and the converter 8c. The power connector 44 is electrically connected to the harness (wire harness) 40 that connects the terminal support member 42 and the power connector 44. As described above, since the generator 6 is arranged adjacent to the engine 2 in the vehicle width direction and the converter 8c is arranged immediately above the engine 2, the converter 8c is arranged diagonally above the generator 6, so that the harness 40 Extends diagonally upward from the generator 6 to the converter 8c. Further, as shown in FIG. 4, the generator 6 is supported by the front side member 11c via the two mounting members 30 and 31. Specifically, the mount members 30 and 31 support the generator 6 at a position on the rear side of the vehicle with respect to the terminal support member 42.

Here, the configurations of the mount members 30 and 31 according to the embodiment of the present invention will be described with reference to FIG. FIG. 5 is a cross-sectional view of the mount members 30, 31 and the like according to the embodiment of the present invention along the vehicle width direction (more specifically, a perspective cross-sectional view seen from diagonally upper right and rearward). In addition to the mount members 30 and 31, FIG. 5 also shows a cross-sectional view of the front side member 11c and the case 6e of the generator 6.

As shown in FIG. 5, the mount member 30 is fixed to the front side member 11c with bolts (not shown) and has a U-shaped cross-sectional shape. Further, in the mount member 30, the rubber 30b is attached in the space 30a formed by the U-shaped cross-sectional shape. On the other hand, one end of the mount member 31 is fixed in the space 30a of the mount member 30, and the other end is fixed to the upper surface of the generator 6 on the rear side of the terminal support member 42 with a bolt 31a. In particular, one end of the mount member 31 is supported via the rubber 30b in the space 30a of the mount member 30. As a result, the vibration and noise of the vehicle drive device 1 including the generator 6 supported by the mount member 31 are absorbed. In FIG. 5, reference numeral 42a indicates a cover attached to the upper surface of the terminal support member 42, and the cover 42a allows the terminal in the terminal support member 42 (connected to the bus bar in the generator 6) to be external. It is designed not to be exposed to.

Next, the terminal support member 42 of the generator 6 according to the embodiment of the present invention will be specifically described with reference to FIGS. 6 and 7. FIG. 6 shows a perspective view of the terminal support member 42 according to the embodiment of the present invention. FIG. 6 shows the terminal support member 42 with the cover 42a (FIGS. 4 and 5) removed for convenience of explanation. Further, FIG. 7 shows a generator 6 in a state where the terminal support member 42 according to the embodiment of the present invention is removed.

As shown in FIG. 6, the terminal support member 42 has a substantially rectangular shape in a plan view, and is mainly connected to each wiring of the harness 40 and a plurality of bus bars 6f extending from the inside of the generator 6. It has a plurality of terminals 42b for connecting to each of (FIG. 7), and a housing-shaped main body portion 42c for supporting and accommodating these terminals 42b and the like. The bus bar 6f is a conductor for conducting a large-capacity electric current generated by the generator 6, and its tip portion is bent in an L shape. Further, in the terminal support member 42, each of the four bolts 42d (fixing members) provided at the four corners of the substantially rectangular shape is screwed into the four bolt holes 6g (FIG. 7) provided in the case 6e of the generator 6. By doing so, it is fixed to the generator 6. Further, in the terminal support member 42, a cover 42a (not shown) is attached to the upper surface of the main body portion 42c by using four bolts 42e.

Next, with reference to FIG. 8, the problems that occur when the vehicle 11 collides and the like described in the above-mentioned "Problems to be solved by the invention" will be specifically described. FIG. 8 shows a plan view (top view) of the terminal support member 42, the mount members 30, 31 and the front side member 11c of the generator 6 according to the embodiment of the present invention. In FIG. 8, for convenience of explanation, the approximate outline of the upper surface of the case 6e of the generator 6 is shown by a broken line.

As described above, the terminal support member 42 is attached to the upper surface of the case 6e of the generator 6 at a position on the front side of the vehicle with respect to the portion supported by the mount members 30 and 31. In such a positional relationship between the terminal support member 42 and the mount members 30 and 31, as shown in FIG. 8, when the front part of the vehicle collides (for example, at the time of a pole collision), the vehicle drive device including the generator 6 is included. When 1 moves to the rear of the vehicle, the terminal support member 42 may interfere with the mount member 30. Specifically, when the generator 6 moves to the rear of the vehicle due to a collision, as shown by arrow A1, the terminal support member 42 attached to the generator 6 moves to the rear of the vehicle (mount member attached to the generator 6). Since 31 also moves to the rear of the vehicle), the mount member 30 attached to the front side member 11c does not move, so that the terminal support member 42 may interfere with the mount member 30. In this case, for example, when the terminal support member 42 collides with the mount member 30, the terminal support member 42 may be damaged or the terminal support member 42 may come off from the case 6e of the generator 6.

Strictly speaking, the terminal support member 42 hardly overlaps with the mount member 30 when viewed in the front-rear direction of the vehicle. Therefore, in a collision at the front of the vehicle, when the vehicle 11 receives an impact from a direction along the front-rear direction, the generator 6 moves backward substantially horizontally with the front-rear direction. Therefore, basically, the terminal support member 42 does not interfere with the mount member 30. On the other hand, in a collision at the front of the vehicle, when the vehicle 11 receives an impact from an oblique direction with respect to the front-rear direction (for example, an impact from the inside in the vehicle width direction), the generator 6 moves backward in the vehicle width direction. As a result, the terminal support member 42 may interfere with the mount member 30.

In the present embodiment, in order to solve the above-mentioned problems, the load applied from the mount member 30 to the terminal support member 42 when the generator 6 moves to the rear of the vehicle can be appropriately received. Use a receiving member. Specifically, in the present embodiment, the position of the terminal support member 42 on the rear side of the vehicle and on the outer side in the vehicle width direction near the mount member 30, more specifically, the position P1 shown in FIG. 8 (the terminal support member 42 in a plan view). A receiving member is provided at (corresponding to one corner). This position P1 is a position to which a bolt 42d for fixing the terminal support member 42 to the case 6e of the generator 6 is applied. That is, in the present embodiment, the receiving member is applied to the position P1 where the bolt 42d for fixing the terminal support member 42 to the case 6e of the generator 6 is provided.

Further, in the present embodiment, the receiving member is composed of a positioning member (specifically, a positioning pin) for positioning the terminal support member 42 with respect to the case 6e of the generator 6. That is, in the present embodiment, the receiving member is also used as the positioning member, in other words, the receiving member is provided with a positioning function. Since the receiving member is provided with the positioning function in this way, the position P2 on the side opposite to the position P1 in the diagonal direction of the terminal support member 42 (at the other corner of the terminal support member 42 in a plan view). A receiving member is also provided in (corresponding to). That is, the receiving member is provided at each of the two diagonal corners of the terminal support member 42 in a substantially rectangular shape. The position P2 is also a position to which the bolt 42d for fixing the terminal support member 42 to the case 6e of the generator 6 is applied. On the other hand, at positions P3 and P4 corresponding to other corners in the substantially rectangular shape of the terminal support member 42 (the bolts 42d for fixing the terminal support member 42 to the case 6e are also applied), the receiving member Does not apply.

Next, with reference to FIG. 9, the receiving member according to the embodiment of the present invention will be specifically described. FIG. 9 is a cross-sectional view taken along the vertical direction of the vehicle such as a receiving member according to the embodiment of the present invention. As shown in FIG. 9, in the present embodiment, the receiving member 42h applied to the positions P1 and P2 (see FIG. 8) of the terminal supporting member 42 has a relatively elongated hollow cylindrical shape, and is made of iron, for example. It is made of a high-strength material. In one example, tubular pins are applied to the receiving member 42h. Further, the receiving member 42h is fitted into a hole for the receiving member 42h provided in both the main body portion 42c and the case 6e. The receiving member 42h firmly fixes the main body 42c of the terminal support member 42 to the case 6e of the generator 6.

As a result, when the generator 6 moves to the rear of the vehicle during a vehicle front collision, the load applied from the mount member 30 to the terminal support member 42 can be appropriately received by the receiving member 42h. Therefore, it is possible to more reliably prevent damage to the terminal support member 42 due to interference between the terminal support member 42 and the mount member 30 at the time of a vehicle front collision. Further, the terminal support member 42 can be appropriately positioned with respect to the case 6e of the generator 6 by using the receiving member 42h. According to such a receiving member 42h, both the function of receiving the load applied to the terminal supporting member 42 and the function of positioning the terminal supporting member 42 can be realized by a simple configuration.

Further, as shown in FIG. 9, a bolt 42d for fixing the terminal support member 42 to the case 6e of the generator 6 is inserted into the receiving member 42h inside (hollow portion). In other words, the receiving member 42h is arranged on the outer circumference of the bolt 42d, and the receiving member 42h and the bolt 42d are provided on the same axis. By providing the receiving member 42h and the bolt 42d on the same shaft in this way, both the receiving member 42h and the bolt 42d can be appropriately arranged at a position close to the mount member 30.

Here, when only the bolt 42d is used without using the receiving member 42h, the load applied from the mount member 30 to the terminal support member 42 when the generator 6 moves to the rear of the vehicle during a vehicle front collision. Is concentrated on the threaded portion of the bolt 42d, that is, on the case 6e of the generator 6. This is because there are almost no voids around the threaded portion, but there are voids around the portion other than the threaded portion, so that the entire bolt 42d operates like a "lever". That is, when a force is applied to the bolt 42d in a direction substantially orthogonal to the longitudinal direction thereof, the entire bolt 42d operates like a "lever" having a screw portion as a fulcrum. Therefore, when only the bolt 42d is used, the load applied from the mount member 30 to the terminal support member 42 cannot be appropriately received as in the case where the receiving member 42h according to the present embodiment is used. On the other hand, when the receiving member 42h is used as in the present embodiment, the receiving member 42h straddles both the main body portion 42c of the terminal support member 42 and the case 6e of the generator 6, so that the mounting member 30 Since the load applied to the terminal support member 42 is distributed between the main body portion 42c and the case 6e, this load can be appropriately received.

Although the embodiments of the present invention have been described above, various modifications can be made to the above-described embodiments. That is, in the above-described embodiment, the engine 2 drives the generator 6, and the drive shaft 12 is not directly driven by the engine 2, but the drive shaft 12 is driven by the power of the engine 2. The present invention can also be applied. The present invention can also be applied to a vehicle drive device in which the battery is charged exclusively by an external power source. Further, in the above-described embodiment, the rotary piston engine is adopted as the engine 2, but various types of engines can be adopted as the engine. For example, a horizontally opposed engine can be adopted as the engine 2. Like the rotary piston engine, this horizontally opposed engine has a low overall height, and even when a case such as a power converter is arranged above the engine, the space factor in the motor room is not impaired, which is suitable.

Further, in the above-described embodiment, the receiving member 42h and the bolt 42d are provided on the same shaft, but in another example, the receiving member 42h and the bolt 42d may not be provided on the same shaft. That is, the receiving member 42h and the bolt 42d may be provided apart from each other. Further, in the above-described embodiment, an example in which a hollow member (for example, a tubular pin) is used as the receiving member 42h is shown, but in another example, a solid member (for example, a dowel pin) is used as the receiving member 42h. May be good. Further, the present invention is not limited to the application to the generator 6, and is also applicable to the motor and the motor generator.

1 Vehicle drive 2 Engine 4 Drive motor 6 Generator (rotary electromechanical)
8b inverter 8c converter (power converter)
10 Trans-Askle 11 Vehicle 11c Front side member 12 Drive shaft 20 Lithium-ion battery 30 Mount member 31 Mount member 40 Harness 42 Terminal support member 42a Cover 42b Terminal 42c Main body 42d Bolt (fixing member)
42h receiving member

Claims (6)

A rotating electric machine of a vehicle that is supported by a mount member with respect to a front side member extending in the front-rear direction of the vehicle and is adjacent to the inside of the front side member in the vehicle width direction.
A terminal support member attached to the upper surface of the rotary electric machine on the front side of the vehicle with respect to the portion supported by the mount member and supporting a terminal connected to the rotary electric machine.
A receiving member for receiving a load applied from the mounting member to the terminal support member when the rotating electric machine moves to the rear of the vehicle.
Have,
The rotating electric machine of a vehicle, wherein the receiving member is provided at a position close to the mount member on the rear side of the vehicle and outside in the vehicle width direction of the terminal support member. The rotating electric machine for a vehicle according to claim 1, wherein the receiving member is composed of a positioning member for positioning the terminal support member with respect to the case of the rotating electric machine. The rotary electric machine for a vehicle according to claim 1 or 2, wherein the receiving member is provided on the outer periphery of a fixing member for fixing the terminal support member to the case of the rotary electric machine. The terminal support member has a substantially rectangular shape in a plan view and has a substantially rectangular shape.
The receiving member is provided at each of two diagonal corners in the substantially rectangular shape.
The rotating electric machine for a vehicle according to claim 2. The method according to any one of claims 1 to 4, wherein a power conversion device electrically connected to the rotating electric machine via the terminal support member is provided inside the rotating electric machine in the vehicle width direction. Vehicle rotating electromechanical. The rotating electric machine for a vehicle according to any one of claims 1 to 5, wherein the rotating shaft of the rotating electric machine is arranged so as to extend along the vehicle width direction.

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