JP6134639B2 - Rotating electrical machine unit - Google Patents

Description

  The present invention relates to a rotating electrical machine unit.

  Conventionally, a vehicle drive device that includes a case and a cover member that are directly attached to each other, and that electrically connects a rotating electrical machine housed in the case and a control unit housed in the cover member through a common terminal block Is known (see, for example, Patent Document 1).

JP 2012-065436 A

  By the way, in the vehicle drive device according to the above-described prior art, the cover member and the case have a shape by a dedicated design according to the layout of the mounted vehicle body, and are formed so as to be connected only by a specific connection form. ing. However, it is desired to improve versatility by being formed to be connectable by a plurality of connection forms.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a rotating electrical machine unit that has a shape that can accommodate a plurality of connection forms, and that can improve commonality and versatility.

In order to solve the above problems and achieve the object, the present invention employs the following aspects.
(1) A rotating electrical machine unit according to an aspect of the present invention includes a rotating electrical machine (for example, the rotating electrical machine 11 in the embodiment) and an energization control that is integrally connected to the rotating electrical machine and performs energization control of the rotating electrical machine. A device (for example, the energization control device 70 in the embodiment), a terminal portion (for example, the terminal portion 35 in the embodiment) of the coil of the rotating electrical machine (for example, the coil 33 in the embodiment), and the energization control device, A terminal block (for example, the terminal block 54 in the embodiment) that is electrically connected to the housing, a housing (for example, the housing 12 in the embodiment) that houses the rotating electrical machine, and the rotation unit A first through hole (for example, the first through hole 61 in the embodiment) and a second through hole (for example, the second through hole 62 in the embodiment) for inserting the terminal block toward the terminal part of the coil of the electric machine. ) Each A first through hole forming part to be formed (for example, the first through hole forming part 63 in the embodiment) and a second through hole forming part (for example, the second through hole forming part 64 in the embodiment), A first direction in which the first through hole faces the terminal portion of the coil (for example, the first direction S in the embodiment) and a second direction in which the second through hole faces the terminal portion of the coil (for example, the embodiment) The first through hole and the second through hole are different from each other when the terminal block is inserted toward the terminal portion of the coil. The terminal portion of the coil and the terminal block are formed so as to be operated.

(2) In the rotating electrical machine unit according to (1), the terminal portion of the coil has a connection space (inside the housing) formed by at least the first through-hole forming portion and the second through-hole forming portion ( For example, in the connection space 66 in the embodiment, a connection terminal (for example, the connection terminal 34 in the embodiment) attached to the end of the coil is provided, and the connection terminal has a first mounting direction (for example, in the embodiment). The first mounting direction P) and the second mounting direction (for example, the second mounting direction Q in the embodiment) are formed so as to be attachable to the end of the coil, and along the first mounting direction. When attached to the end of the coil such that the tip of the connection terminal extends toward the first through hole when attached to the end of the coil, and attached to the end of the coil along the second mounting direction. As the distal end portion of the serial connection terminal extending toward the second through-holes may be formed.

(3) In the rotating electrical machine unit described in (2) above, a temperature sensor (for example, the temperature sensor 36 in the embodiment) mounted on the coil, the first through-hole forming portion, and the second through-hole forming. A connection space forming portion (for example, the connection space forming portion 65 in the embodiment) that forms the connection space together with a portion, and the connection space forming portion includes a signal line (for the temperature sensor mounted on the coil) ( For example, you may provide the wiring output part which discharges | emits the signal wire | line 36a) in embodiment from the said connection space outside.

(4) In the rotating electrical machine unit described in (2) or (3) above, the outer surface of the housing forming the connection space (for example, the outer surface 67 in the embodiment) may have a chamfered shape.

According to the rotating electrical machine unit according to the aspect described in (1) above, the attachment position of the energization control device can be switched to a plurality of positions with respect to a single housing that houses the rotating electrical machine. A single housing is mounted on a plurality of different types of vehicles, and the attachment position of the energization control device can be appropriately set according to the layout of each vehicle. Thereby, mass productivity can be improved even for a plurality of different types of vehicles.
Further, when the terminal block is inserted into one of the first through hole and the second through hole and the terminal block and the terminal portion of the coil are connected, either one of the terminal block and the terminal block of the coil is connected. Since it is a tool hole for operating with a suitable tool, connection operation can be made easy.

  Furthermore, in the case of the above (2), even when the attachment position of the energization control device is switched with respect to a single housing, the connection terminals can be shared and versatility can be improved.

  Furthermore, in the case of (3), the signal line of the temperature sensor can be discharged to the outside by effectively using the connection space.

  Furthermore, in the case of the above (4), the housing can be reduced in weight and the occurrence of membrane vibration can be suppressed.

It is a perspective view which shows typically the structure of the rotary electric machine unit which concerns on embodiment of this invention. It is a perspective view which decomposes | disassembles the rotary electric machine of the rotary electric machine unit which concerns on embodiment of this invention, and shows a structure typically. It is a perspective view which decomposes | disassembles the rotary electric machine and electricity supply control apparatus of the rotary electric machine unit which concern on 1st Example of embodiment of this invention, and shows a structure typically. (A) is the sectional view on the AA line shown in FIG. 3, (B) is the sectional view on the BB line shown in FIG. 3, (C) is the sectional view on the CC line shown in FIG. . In the state where the terminal block is inserted from the first direction toward the terminal portion of the coil of the rotating electrical machine of the rotating electrical machine unit according to the first example of the embodiment of the present invention, it is attached to the end of the coil along the first mounting direction. It is the perspective view and enlarged plan view which show the obtained connection terminal. The terminal of the coil is connected to the terminal block inserted from the first direction toward the terminal portion of the coil of the rotating electrical machine of the rotating electrical machine unit according to the first example of the embodiment of the present invention and along the first mounting direction. It is the top view which looked at the connecting terminal attached to from the axial direction. The connection terminal inserted from the first direction toward the coil terminal of the rotating electrical machine of the rotating electrical machine unit according to the first example of the embodiment of the present invention and attached to the end of the coil along the first mounting direction is connected. It is sectional drawing of the made terminal block. It is a perspective view which decomposes | disassembles the rotary electric machine and electricity supply control apparatus of the rotary electric machine unit which concern on 2nd Example of embodiment of this invention, and shows a structure typically. In the state where the terminal block is inserted from the second direction toward the terminal of the coil of the rotating electrical machine of the rotating electrical machine unit according to the second example of the embodiment of the present invention, it is attached to the end of the coil along the second mounting direction. It is the perspective view and enlarged plan view which show the obtained connection terminal. The terminal of the coil is connected to the terminal block inserted from the second direction toward the terminal portion of the coil of the rotating electrical machine of the rotating electrical machine unit according to the second example of the embodiment of the present invention and along the second mounting direction. It is the top view which looked at the connecting terminal attached to from the axial direction. The connection terminal which is inserted from the second direction toward the terminal portion of the coil of the rotating electrical machine of the rotating electrical machine unit according to the second example of the embodiment of the present invention and attached to the end of the coil along the second mounting direction is connected. It is sectional drawing of the made terminal block.

  Hereinafter, a rotating electrical machine unit according to an embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the rotating electrical machine unit 10 according to the present embodiment includes a rotating electrical machine 11 and a housing 12 that houses the rotating electrical machine 11 therein.
The rotating electrical machine 11 is, for example, a three-phase brushless DC motor, and includes a stator 21 and a rotor 22.
The stator 21 includes a cylindrical back yoke 31, a plurality of teeth 32 protruding radially inward from the inner peripheral surface of the back yoke 31, and each tooth via an insulating member (for example, insulating paper). And a three-phase coil 33 attached to 32. Each of the U-phase, V-phase, and W-phase three-phase coils 33 includes a terminal portion 35 constituted by a connection terminal 34 attached to the end portion 33a. A temperature sensor 36 such as a thermistor is wound around the three-phase coil 33. A signal line 36 a of the temperature sensor 36 is exposed to the outside from the coil 33.
The rotor 22 includes a cylindrical rotor core 42 that is coaxially fixed to the rotating shaft 41, and is disposed radially inward of the stator 21 to which the coil 33 is attached.

  The housing 12 includes a housing body 51 that fixes the stator 21 and a rotor body that sandwiches the housing body 51 from both sides in the axial direction of the rotor 22 that is disposed radially inward of the stator 21 (that is, the axial direction of the rotating shaft 41). A first cover 52 and a second cover 53 that rotatably support the 22 rotation shafts 41.

The first cover 52 is a first through hole for inserting a terminal block 54 electrically connected to each terminal portion 35 of the three-phase coil 33 from the outside of the housing 12 toward each terminal portion 35 inside. A first through-hole forming portion 63 and a second through-hole forming portion 64 that form 61 and the second through-hole 62 are provided.
The terminal block 54 electrically connects a terminal portion (not shown) of the energization control device 70 that controls energization of the rotating electrical machine 11 and each terminal portion 35 of the three-phase coil 33. The terminal block 54 is inserted into the first through hole 61 in the energization control device 70 of the first embodiment shown in FIGS. 3 to 7, and the second in the energization control device 70 of the second embodiment shown in FIGS. 8 to 11. It is inserted into the through hole 62.
As shown in FIGS. 1 and 3, the energization control device 70 of the first embodiment is integrated with the rotating electrical machine 11 by bolting the plurality of first fastening holes 71 provided in the first cover 52. Connected. As shown in FIGS. 1 and 8, the energization control device 70 of the second embodiment is integrally connected to the rotating electrical machine 11 by bolting or the like with respect to a plurality of second fastening holes 72 provided in the first cover 52. The In the first and second embodiments, the energization control device 70 and the housing 12 are liquid-tightly sealed with a seal material (not shown).

The first through-hole forming portion 63 and the second through-hole forming portion 64 of the first cover 52, together with the connection space forming portion 65 of the housing main body 51, each terminal portion 35 of the three-phase coil 33 inside the housing 12. A connection space 66 for connection with the terminal block 54 is formed. The connection space forming unit 65 includes a wiring output unit 65 a that discharges the signal line 36 a of the temperature sensor 36 attached to the coil 33 from the connection space 66 to the outside.
The first direction S in which the first through hole 61 faces each terminal portion 35 in the connection space 66 and the second direction T in which the second through hole 62 faces each terminal portion 35 are different (for example, orthogonal to each other). ) Is set. The first through-hole 61 and the second through-hole 62 are connected to either one of the inside of the connection space 66 from the outside when the terminal block 54 is inserted from the outside to the terminal portion 35 in the connection space 66. The connection between each terminal part 35 and the terminal block 54 is operated by an appropriate tool or the like inserted toward
3 and 4, the outer surface 67 of the first cover 52 that forms the connection space 66 has a chamfered shape.

As shown in FIGS. 1, 3, 5, and 6, in the rotating electrical machine unit 10 according to the first embodiment, the first direction S in which the first through hole 61 faces each terminal portion 35 in the connection space 66. The terminal block 54 is inserted from the outside toward each terminal portion 35 in the connection space 66. In each terminal portion 35, a connection terminal 34 formed of a crimp terminal having a twisted shape is attached to the end portion 33 a of each coil 33 along the first mounting direction P set with respect to the connection terminal 34. The tip 34 a of the terminal 34 is formed to extend toward the first through hole 61.
On the other hand, as shown in FIGS. 1, 8, 9, and 10, in the rotating electrical machine unit 10 according to the second embodiment, the second through holes 62 face the respective terminal portions 35 in the connection space 66. A terminal block 54 is inserted from the outside toward each terminal portion 35 in the connection space 66 along the direction T. In each terminal portion 35, a connection terminal 34 formed of a crimp terminal having a twisted shape is attached to an end portion 33 a of each coil 33 along a second mounting direction Q that is opposite to the first mounting direction P. The tip 34 a of the terminal 34 is formed to extend toward the second through hole 62.
In addition, the connection terminal 34 which consists of a crimp terminal etc. is attached to the edge part 33a of each coil 33 by heat caulking (fusing) etc., for example.

As shown in FIG. 7, in the rotating electrical machine unit 10 of the first embodiment, the terminal block 54 connected to the energization control device 70 and projecting outward from the energization control device 70 is connected to each of the connection spaces 66 from the outside. When inserted into the first through hole 61 facing the terminal portion 35, the terminal portions 35 and the terminal block 54 are fastened by an appropriate tool or the like inserted into the second through hole 62 from the outside into the connection space 66. The screws 73 are fastened together.
On the other hand, as shown in FIG. 11, in the rotating electrical machine unit 10 of the second embodiment, the terminal block 54 connected to the energization control device 70 and projecting outward from the energization control device 70 is provided in the connection space 66 from the outside. When the terminal portion 35 is inserted into the second through hole 62 toward the terminal portion 35, each terminal portion 35 and the terminal block 54 are inserted into the second through hole 62 from the outside into the connection space 66 with an appropriate tool or the like. Are fastened together by fastening screws 73.

As described above, according to the rotating electrical machine unit 10 according to the present embodiment, the attachment position of the energization control device 70 can be switched to a plurality of positions with respect to the single housing 12 that houses the rotating electrical machine 11. For example, the single housing 12 is mounted on a plurality of different types of vehicles, and the attachment position of the energization control device 70 can be appropriately set according to the layout of each vehicle. Thereby, mass productivity can be improved even for a plurality of different types of vehicles.
Furthermore, when the terminal block 54 is inserted into one of the first through hole 61 and the second through hole 62 and the terminal block 54 and the terminal portion 35 of the coil 33 are connected, the other is coiled. A tool hole for operating the connection between the terminal portion 35 and the terminal block 54 can be provided, and the connection operation can be facilitated.

Further, when the mounting position of the energization control device 70 is switched with respect to the single housing 12, the connection terminal 34 is shared only by switching the first mounting direction P and the second mounting direction Q of the connection terminal 34. And versatility can be improved.
Further, in addition to the terminal portion 35 and the terminal block 54 of each coil 33, the signal output 36 a of the temperature sensor 36 is arranged in the connection space 66, and the wiring output portion 65 a of the connection space forming portion 65 that forms the connection space 66. Since the signal line 36a is discharged to the outside, the connection space 66 can be used effectively.
Further, since the outer surface 67 of the first cover 52 forming the connection space 66 is chamfered, the housing 12 can be reduced in weight and the occurrence of membrane vibration can be suppressed.

  The above-described embodiments are presented as examples, and are not intended to limit the scope of the invention. The above-described novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. The above-described embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  For example, in the above-described embodiment, the first cover 52 includes the first through-hole forming portion 63 and the second through-hole forming portion 64. However, the present invention is not limited to this, and further, the terminal block 54 is inserted. You may provide the through-hole formation part which forms the other through-hole different from the 1st through-hole 61 and the 2nd through-hole 62 of this.

DESCRIPTION OF SYMBOLS 10 Rotating electrical machine unit 11 Rotating electrical machine 12 Housing 33 Coil 34 Connection terminal 35 Terminal part 36 Temperature sensor 36a Signal line 54 Terminal block 61 1st through-hole 62 2nd through-hole 63 1st through-hole formation part 64 2nd through-hole formation part 65 connection space forming part 66 connection space 67 outer surface 70 energization control device

Claims (4)

A rotating electrical machine, and an energization control device integrally connected to the rotating electrical machine and performing energization control of the rotating electrical machine;
A terminal block for electrically connecting the terminal portion of the coil of the rotating electrical machine and the energization control device;
A housing that houses the rotating electrical machine;
A first through-hole forming portion and a second through-hole, which are integrally provided in the housing and form a first through-hole and a second through-hole for inserting the terminal block toward the terminal portion of the coil of the rotating electrical machine. A hole forming part;
With
The first direction in which the first through hole faces the terminal portion of the coil and the second direction in which the second through hole faces the terminal portion of the coil are different from each other.
When the terminal block is inserted into one of the first through hole and the second through hole toward the terminal portion of the coil, the terminal portion of the coil and the terminal block are connected from either one of them. Is shaped to be manipulated,
A rotating electrical machine unit characterized by that.
The terminal portion of the coil includes a connection terminal attached to an end portion of the coil in a connection space inside the housing formed by at least the first through-hole forming portion and the second through-hole forming portion,
The connection terminal is formed so as to be attachable to the end of the coil along each of the first attachment direction and the second attachment direction, and is attached to the end of the coil along the first attachment direction. When the front end of the connection terminal extends toward the first through hole and is attached to the end of the coil along the second mounting direction, the front end of the connection terminal passes through the second through hole. It is formed to extend toward the hole,
The rotating electrical machine unit according to claim 1. A temperature sensor mounted on the coil;
A connection space forming portion that forms the connection space together with the first through hole forming portion and the second through hole forming portion;
With
The connection space forming unit includes a wiring output unit that discharges a signal line of the temperature sensor attached to the coil from the connection space to the outside.
The rotating electrical machine unit according to claim 2. The outer surface of the housing forming the connection space has a chamfered shape,
The rotating electrical machine unit according to claim 2 or claim 3, wherein

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