WO2022219890A1 - 回転電機 - Google Patents
回転電機 Download PDFInfo
- Publication number
- WO2022219890A1 WO2022219890A1 PCT/JP2022/004097 JP2022004097W WO2022219890A1 WO 2022219890 A1 WO2022219890 A1 WO 2022219890A1 JP 2022004097 W JP2022004097 W JP 2022004097W WO 2022219890 A1 WO2022219890 A1 WO 2022219890A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- temperature sensor
- electric machine
- coil
- housing
- stator core
- Prior art date
Links
- 238000004891 communication Methods 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 16
- 230000005540 biological transmission Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000011900 installation process Methods 0.000 description 4
- 238000009529 body temperature measurement Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Definitions
- the present invention relates to rotating electric machines.
- a rotating electrical machine includes a stator core forming a plurality of slots, coils accommodated in the slots, and temperature sensors for detecting the temperature of the coils. and a housing for fixing the support member.
- This support member for the temperature sensor suppresses variations in temperature measurement of the coil, and in order to increase the accuracy of suppression, improvements have been made to the method of fixing the temperature sensors.
- a support member includes a body portion of the support member having a fastening bolt hole and a knock pin insertion hole for fixing to a housing, and an elastic body portion extending from the body portion of the support member.
- a configuration including a spring portion that is a body and a temperature sensor holding portion that holds a temperature sensor that detects the temperature of a coil provided at the tip of the spring portion is disclosed.
- a technique is disclosed in which the knock pin hole and the knock pin of the housing are fitted, and the fastening bolt hole and the bolt hole of the housing are fastened with bolts, whereby the support member can be positioned with high accuracy with respect to the housing. .
- a rotating electric machine of the present invention includes a coil wound with angular wire distribution, a stator core forming a slot for housing the coil, a temperature sensor for detecting the temperature of the coil, and a housing housing the stator core.
- the temperature sensor has a support member that supports the temperature sensor by being connected and fixed to the housing, and the support member includes, of the coils housed in the slots, It has a communication portion that communicates with the coil space formed by the adjacent coils and the stator core.
- a rotating electrical machine with improved temperature sensor reliability can be provided.
- FIG. 1 is a block diagram of a hybrid electric vehicle;
- FIG. 1 is a cross-sectional view of a rotating electrical machine;
- FIG. 1 is a front view of a stator in a rotating electrical machine;
- FIG. 1 is an external view of a temperature sensor according to a first embodiment of the invention;
- FIG. 4 is an installation process diagram of the temperature sensor positioning jig according to the first embodiment of the present invention;
- FIG. 4 is an installation process diagram of the temperature sensor according to the first embodiment of the present invention;
- FIG. 4 is an external view of the temperature sensor after being attached according to the first embodiment of the present invention;
- FIG. 5 is an external view of a temperature sensor according to a second embodiment of the invention;
- FIG. 1 is a block diagram of a hybrid electric vehicle equipped with a rotating electric machine of the present invention.
- a vehicle 1 is equipped with an engine 2 and a rotating electrical machine 3 as power sources.
- the vehicle 1 may be configured so that two rotating electric machines having different roles are used in combination, one rotating electric machine performing both power generation and vehicle driving, and the other rotating electric machine driving the vehicle. .
- Rotational torque generated by the engine 2 and the rotating electric machine 3 is transmitted to the wheels (driving wheels) 6 via the transmission 4 such as a continuously variable transmission or a stepped automatic transmission, and the differential gear 5 .
- the rotating electric machine 3 is mounted between the engine 2 and the transmission 4 or inside the transmission 4 .
- the rotary electric machine 3 is arranged inside the vehicle 1 so as to minimize the impact of the space on the vehicle 1 in order to meet the demand for smaller size and higher output.
- FIG. 2 is a cross-sectional view schematically showing the rotating electric machine of the present invention. It should be noted that the upper side of the shaft 7 is shown as a cross-sectional view, and the lower side is shown as a side view. Arrow r indicates the direction of rotation, and arrow Z indicates the direction of axis. The left side of the drawing is the front side.
- the rotating electric machine 3 is housed and arranged inside a case 11 composed of a front bracket 8 , a rear bracket 9 and a housing 10 .
- the case 11 may be an integrated case 11 composed of the front bracket 8 and the housing 10 or an integrated case 11 composed of the rear bracket 9 and the housing 10 .
- the rotating electric machine 3 is arranged between the engine 2 and the transmission 4 as shown in FIG. be. Further, when the rotary electric machine 3 is mounted in the transmission 4 , the case 11 is configured using the case of the transmission 4 .
- the rotating electric machine 3 has a rotor 12 and a stator 13 .
- the outer peripheral side of the stator 13 is fixed to the inner peripheral side of the housing 10 .
- the rotor 12 is arranged inside the stator 13 with a gap therebetween.
- the rotor 12 is fixed to the shaft 7 and rotates together with the shaft 7 .
- Both ends of the shaft 7 are rotatably supported by bearings 14a and 14b provided in the front bracket 8 and the rear bracket 9, respectively.
- FIG. 3 is a front view of the stator in the rotating electric machine shown in FIG.
- the stator 13 includes a stator core 16 in which a plurality of axially penetrating slots are arranged at predetermined intervals in the circumferential direction, and coils 17 housed in the slots.
- a temperature sensor 15 (described later) for detecting the temperature of the coil 17 is arranged between the coil 17 extending axially (frontward) from the coil 17 and protruding from the stator core 16 and the inner wall of the housing 10 .
- FIG. 4 is an external view of the temperature sensor according to the first embodiment of the present invention.
- the temperature sensor 15 includes a temperature sensor body 19, a fastening portion 18a having a hole 18e for bolting to the housing 10 (see FIG. 3), and a temperature sensor for detecting the temperature of the coil from the fastening portion 18a.
- a support member 18 is provided which has an elastic spring portion 18b extending with respect to the sensor body portion 19, and a temperature sensor holding portion 18c for holding the temperature sensor body portion 19 provided at the tip of the spring portion 18b. .
- the temperature sensor main body 19 has a communicating portion 19b formed from two protrusions 19a.
- the communicating portion 19b is formed in a concave shape by protrusions 19a provided at both ends of the communicating portion 19b, and the temperature sensor 15 is positioned by this shape.
- the hole portion 18e has a shape of a hole whose length in the circumferential direction is longer than the length in the radial direction so as to match the shape of the fixing portion of the housing 10 when the temperature sensor 15 is fastened and fixed to the housing 10. This provides an elongated hole with an adjustment margin for fixing.
- the fastening portion 18 a has an end portion 18 d whose surface that contacts the inner peripheral surface of the housing 10 is formed linearly as a detent when fastening and fixing to the housing 10 .
- the temperature sensor body 19 can be pressed against the coil 17 (see FIG. 3) via the spring portion 18b, which is an elastic body. Thereby, the temperature sensor 15 can detect the temperature of the coil 17 .
- FIG. 5 is an installation process diagram of a temperature sensor positioning jig (hereinafter referred to as a positioning jig) according to the first embodiment of the present invention.
- the lower diagram of FIG. 5(a) is a cross-sectional diagram of the broken line AA shown in the upper diagram of FIG. 5(a), and the lower diagram of FIG. 5(b) is the upper diagram of FIG. 5(b).
- the first step is to insert the temperature sensor 15 into the coil space 20 formed between the coils 17 housed in slots adjacent to each other in the circumferential direction.
- a positioning jig 21 for positioning is inserted.
- FIG. 6 is an installation process diagram of the temperature sensor according to the first embodiment of the present invention.
- the lower diagram of FIG. 6(c) is a cross-sectional diagram along line CC shown in the upper diagram of FIG. 6(a), and the lower diagram of FIG. 6(b) is the upper diagram of FIG. 6(b).
- the temperature sensor main body 19 (Fig. 4) is fitted to the positioned positioning jig 21 via the communication part 19b (Fig. 4).
- the protrusions 19a on both ends of the communicating portion 19b are kept from coming into contact with the stator core 16.
- the communicating portion 19 b communicates with the coil space 20 via the positioning jig 21 .
- the temperature sensor 15 and the housing 10 are fastened and fixed by inserting the fastening bolt 22 into the hole 18e formed in the fastening portion 18a.
- the positioning jig 21 is removed. As a result, the temperature sensor 15 is fixed without contacting the stator core 16 .
- the positioning jig 21 is used to position the temperature sensor 19 in accordance with the coil 17, so positioning can be performed with high accuracy.
- FIG. 7 is an external view of the temperature sensor 15 attached according to the first embodiment of the present invention, showing the state shown in FIG. 6(d).
- the coil 17 preferably has a rectangular wire shape. This is because the position of the positioning jig 21 is determined by the surfaces of the coil 17 that come into contact with both sides (side surfaces of the positioning jig 21) when the positioning jig 21 is inserted. For example, when the cross section of the coil 17 is circular, the position of the positioning jig 21 becomes unstable because the surface of the coil 17 is not flat. However, if the coil 17 has a rectangular wire shape, the surface of the coil 17 is flat, so the position of the positioning jig 21 is stable, and the temperature sensor main body 19 (temperature sensor 15) is positioned relative to the position of the coil 17. , can be positioned with high accuracy.
- the protrusion 19a (FIG. 4) provided on the temperature sensor main body 19 does not contact the stator core 16 so that the positioning accuracy of the temperature sensor 15 is not affected. Thereby, the positioning accuracy of the temperature sensor 15 is ensured.
- the support member 18 was attached in consideration of fixing the temperature sensor 15 to the housing 10.
- the temperature sensor 15 is positioned by inserting the temperature sensor positioning jig 21 through the temperature sensor 20, and the support member 18 of the temperature sensor 15 supports the housing 10 by the circumferential fixing margin of the hole 18e. It was adopted. As a result, the rotary electric machine in which the accuracy of the temperature sensor 15 is improved without changing the fixedness of the temperature sensor 15 is obtained.
- FIG. 8 is an external view of a temperature sensor 15A according to the second embodiment of the invention.
- the communicating portion 19b has a recessed shape (groove) for the positioning jig 21 (see FIG. 7). It may be provided in the sensor main body 19A. In this way, by inserting the protrusion (protrusion) 19c into the coil space 20 (see FIG. 5) formed between the adjacent coils 17 and the stator core 16, the temperature sensor can be accurately positioned. 15A reliability is improved.
- the rotating electrical machine 3 houses a coil 17 wound with angular wire distribution, a stator core 16 forming a slot for housing the coil 17, a temperature sensor 15 for detecting the temperature of the coil 17, and the stator core 16.
- a housing 10 having a housing 10;
- the temperature sensor 15 has a support member 18 that supports the temperature sensor 15 by being connected and fixed to the housing 10, and the support member 18 supports adjacent coils 17 among the coils 17 respectively housed in the slots. It has a communicating portion 19 b that communicates with the coil space 20 formed by the stator core 16 and the stator core 16 .
- the communicating portion 19b has a concave shape. By doing so, the temperature sensor 15 can be positioned using the temperature sensor positioning jig 21 .
- the concave shape of the communication portion 19b is formed by the protrusions 19a provided at both ends of the communication portion 19b. By doing so, the temperature sensor 15 can be positioned by fitting the positioning jig 21 to the projections 19a on both ends.
- the support member 18 has a fastening portion 18a for fixing the support member 18 to the housing 10 with a bolt 22.
- the fastening portion 18a has a hole portion 18e through which the bolt 22 is inserted.
- the length in the circumferential direction of the rotating electric machine 3 is formed to be larger than the length in the radial direction. By doing so, it is possible to provide a fixing allowance for the housing 10 .
- the fastening portion 18a has a linear end portion 18d that contacts the inner peripheral surface of the housing 10 . By doing so, it is possible to prevent rotation of the temperature sensor 15 while ensuring fixability.
- Temperature sensor 15 does not contact stator core 16 . By doing so, the fixedness of the positioned temperature sensor 15 can be ensured.
- the temperature sensor 15 has a support member 18 that supports the temperature sensor 15 by being connected and fixed to the housing 10, and the support member 18 supports adjacent coils 17 among the coils 17 housed in the respective slots. , and the stator core 16 . By doing so, it is possible to provide the rotary electric machine 3 in which the reliability of the temperature sensor 15 is improved without using the temperature sensor positioning jig 21 .
- the present invention is not limited to the above embodiments, and various modifications and other configurations can be combined without departing from the scope of the invention. Moreover, the present invention is not limited to those having all the configurations described in the above embodiments, and includes those having some of the configurations omitted.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
Description
図1は、本発明の回転電機を搭載したハイブリッド電気自動車のブロック図である。
図8は、本発明の第2の実施形態に係る、温度センサ15Aの外観図を示す図である。
2 エンジン
3 回転電機
4 変速機
5 ディファレンシャルギア
6 車輪(駆動輪)
7 シャフト
8 フロントブラケット
9 リアブラケット
10 ハウジング
10a 締結穴
11 ケース
12 回転子
13 固定子
14a、14b 軸受
15、15A 温度センサ
16 ステータコア
17 コイル
18、18A 支持部材
18a 締結部
18b バネ部
18c 温度センサ保持部
18d 端部
18e 穴部
19、19A 温度センサ本体部
19a 突起部
19b 連通部
19c 凸部(突起)
20 コイル空間
21 温度センサ位置決め治具
22 締結ボルト
Claims (8)
- 角線分布巻きされたコイルと、
前記コイルを収納するスロットを形成しているステータコアと、
前記コイルの温度を検出する温度センサと、前記ステータコアを収納しているハウジングと、を備え、
前記温度センサは、前記ハウジングに接続固定されることで前記温度センサを支持している支持部材を有し、
前記支持部材は、前記スロットにそれぞれ収納されている前記コイルのうち、隣り合うコイル同士と、前記ステータコアと、で形成されているコイル空間に連通する連通部を有する
回転電機。 - 請求項1に記載の回転電機において、
前記連通部は、凹部形状である
回転電機。 - 請求項2に記載の回転電機において、
前記連通部の凹部形状は、前記連通部の両端にそれぞれ設けられる突起部により形成されている
回転電機。 - 請求項3に記載の回転電機において、
前記突起部は、前記ステータコアに接触しない
回転電機。 - 請求項1ないし4のいずれか一項に記載の回転電機において、
前記支持部材は、前記支持部材を前記ハウジングにボルトで固定させるための締結部を備え、
前記締結部は、前記ボルトを挿通する穴部を有し、
前記穴部は、前記回転電機の周方向の長さが径方向の長さよりも大きく形成される
回転電機。 - 請求項5に記載の回転電機において、
前記締結部は、前記ハウジングの内周面に接触する端部が直線状に形成される
回転電機。 - 請求項1ないし4のいずれか一項に記載の回転電機において、
前記温度センサは、前記ステータコアに接触しない
回転電機。 - 角線分布巻きのコイルと、
前記コイルを収納するスロットを形成しているステータコアと、
前記コイルの温度を検出する温度センサと、前記ステータコアを収納しているハウジングと、を備え、
前記温度センサは、前記ハウジングに接続固定されることで前記温度センサを支持している支持部材を有し、
前記支持部材は、前記スロットにそれぞれ収納される前記コイルのうち、隣り合うコイル同士と、前記ステータコアと、で形成されているコイル空間に挿入される凸部を含む
回転電機。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/554,821 US20240204623A1 (en) | 2021-04-13 | 2022-02-02 | Rotating electrical machine |
DE112022001002.9T DE112022001002T5 (de) | 2021-04-13 | 2022-02-02 | Rotierende elektrische maschine |
JP2023514348A JP7494387B2 (ja) | 2021-04-13 | 2022-02-02 | 回転電機 |
CN202280027075.1A CN117321894A (zh) | 2021-04-13 | 2022-02-02 | 旋转电机 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021-067429 | 2021-04-13 | ||
JP2021067429 | 2021-04-13 |
Publications (1)
Publication Number | Publication Date |
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WO2022219890A1 true WO2022219890A1 (ja) | 2022-10-20 |
Family
ID=83639558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2022/004097 WO2022219890A1 (ja) | 2021-04-13 | 2022-02-02 | 回転電機 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20240204623A1 (ja) |
JP (1) | JP7494387B2 (ja) |
CN (1) | CN117321894A (ja) |
DE (1) | DE112022001002T5 (ja) |
WO (1) | WO2022219890A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012178923A (ja) * | 2011-02-25 | 2012-09-13 | Toyota Motor Corp | ブラケット |
JP2013051806A (ja) * | 2011-08-31 | 2013-03-14 | Toyota Motor Corp | 回転電機 |
JP2014178258A (ja) * | 2013-03-15 | 2014-09-25 | Honda Motor Co Ltd | センサブラケット及びセンサブラケットの取付方法 |
-
2022
- 2022-02-02 WO PCT/JP2022/004097 patent/WO2022219890A1/ja active Application Filing
- 2022-02-02 JP JP2023514348A patent/JP7494387B2/ja active Active
- 2022-02-02 CN CN202280027075.1A patent/CN117321894A/zh active Pending
- 2022-02-02 US US18/554,821 patent/US20240204623A1/en active Pending
- 2022-02-02 DE DE112022001002.9T patent/DE112022001002T5/de active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012178923A (ja) * | 2011-02-25 | 2012-09-13 | Toyota Motor Corp | ブラケット |
JP2013051806A (ja) * | 2011-08-31 | 2013-03-14 | Toyota Motor Corp | 回転電機 |
JP2014178258A (ja) * | 2013-03-15 | 2014-09-25 | Honda Motor Co Ltd | センサブラケット及びセンサブラケットの取付方法 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2022219890A1 (ja) | 2022-10-20 |
CN117321894A (zh) | 2023-12-29 |
US20240204623A1 (en) | 2024-06-20 |
JP7494387B2 (ja) | 2024-06-03 |
DE112022001002T5 (de) | 2023-12-07 |
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