CN113826311B - Transmission unit and installation of a transmission unit with a junction box - Google Patents
Transmission unit and installation of a transmission unit with a junction box Download PDFInfo
- Publication number
- CN113826311B CN113826311B CN202080035261.0A CN202080035261A CN113826311B CN 113826311 B CN113826311 B CN 113826311B CN 202080035261 A CN202080035261 A CN 202080035261A CN 113826311 B CN113826311 B CN 113826311B
- Authority
- CN
- China
- Prior art keywords
- housing
- terminal
- seal
- electric motor
- converter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 42
- 238000009434 installation Methods 0.000 title description 3
- 238000007789 sealing Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 10
- 238000005266 casting Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/14—Casings; Enclosures; Supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Frames (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
A transmission unit with an electric motor and a converter, wherein the electric motor is arranged in the interior of a transmission housing (180) and is provided with a lead-through for an electric terminal (118) of the converter, through a housing (175) of the electric motor and the transmission housing (180), wherein the housing (175) of the electric motor has a sealed lead-through (6) for the electric terminal (118), and is provided with a terminal box (110), the flange (7) of which extends into the interior of the transmission, wherein an axial seal and a radial seal are provided on the terminal box (110).
Description
Technical Field
The invention relates to a transmission unit with a junction box for electrically connecting an electric motor to an inverter and to a method for mounting the transmission unit.
Background
In a hybrid vehicle or an electric vehicle, various electric components such as a motor, an inverter, a high-voltage battery, and the like are mounted. The components are connected via a waterproof, shielded plug connector, which serves as an electrical connection component of the device.
From the prior art, for example, DE 10 2016 113 424 A1, a screwed connection in one plane is known, which has three phases in the terminal box, but in which no seal is present.
A waterproof plug connection is known from DE 11 2013 006 946 T5.
A waterproof, shielded plug connector comprising: terminal members provided on end members of the high-voltage cables, respectively; an insulated plug connector housing; a terminal accommodating chamber for accommodating the terminal member; a conductive shielding shell disposed on an outer side of the plug connector housing; a shielding ring which presses and fixes the connection end of the electromagnetic shield at a predetermined position of the shield case; and a face seal provided for water sealing.
When the shield shell is secured to the device, the face seal is pressed against the shield shell. In this way, the device can be sealed. The face seal is formed in a ring shape, so that the face seal can be inserted into an annular groove of the connector housing terminal. The face seal and the annular groove are provided as sealing members for preventing intrusion of moisture or the like.
DE 10 2007 024 472 A1 shows a transmission housing, but does not show the housing of the electric machine. The terminal plug terminates flat on the transmission housing, has no flange and does not extend into the interior of the transmission housing. A radial seal is provided on the hub.
WO 2016/156 A1 shows an electric motor arranged in a housing, in which a lead-through is provided in the form of a seal through the housing. The terminal has a shoulder that extends in the interior of the housing of the electric machine. An O-ring is provided as a seal, which is a radial seal.
Disclosure of Invention
The object of the invention is to create an improved water-and oil-repellent seal for a transmission unit with a junction box, wherein the device is also easy to install.
The object is achieved by a transmission unit having an electric motor and a power converter in a transmission housing, wherein the electric motor is arranged in the interior of the transmission housing and is provided with a lead-through for an electrical terminal of the power converter, which passes through the housing of the electric motor and the transmission housing, wherein the housing of the electric motor has a sealed lead-through for the electrical terminal, and is provided with a terminal box which extends into the interior of the housing by means of a flange, wherein an axial seal and a radial seal are provided on the terminal box.
By being configured with an axial seal and a radial seal, a sealing system is applied modularly, which sealing system results in an optimal sealing of the transmission unit.
Preferably, the lead-through at the housing of the electric machine is sealed with at least one sealing lip each.
Alternatively or additionally, the lead-through on the housing of the electric machine is sealed with a casting compound.
Advantageously, the flange of the terminal box is sealed against the housing of the electric machine and the transmission housing by means of axial seals extending over the surfaces of the flange, respectively.
It is furthermore advantageous if the radial seal seals the terminal box against the converter housing.
The radial seal seals the sensor hub from the junction box.
Advantageously, the radial seal seals a mounting cover closing an opening of the converter housing.
The seal is formed by means of a sealing ring or by means of adhesive bonding or casting.
The object is also achieved by a method for mounting a transmission unit, having the steps of:
mounting the sealing lip on an electrical terminal in a through opening of a housing of the electrical machine,
placing the cable connector sleeve over the electrical terminal,
mounting the terminal box on the housing of the electric machine by means of an axial seal,
mounting an electric machine with a junction box on a transmission housing by means of an axial seal,
mounting the convector on the terminal box by means of radial seals,
-screwing down the electrical connection portion,
-sealing the mounting opening with a sealing cap by means of a radial seal.
Drawings
Embodiments of the invention are illustrated by way of example in the accompanying drawings and described in detail in the description of the drawings. The drawings show:
figure 1 shows an embodiment of the prior art,
figure 2 shows a perspective view of the junction box,
figure 3 shows a perspective view of one embodiment of a junction box,
figure 4 shows a cross-sectional view according to an embodiment of the invention,
fig. 5 shows an exploded view of the embodiment.
Detailed Description
One embodiment of a junction box 110 for electrically connecting a first element 112 to a second element 114 is shown in fig. 1-3, as is known from the prior art.
The terminal box 110 for electrically connecting a first element, i.e. an electric motor, to a second element, i.e. an inverter, has a plurality of first receiving means 116 for receiving electrical terminals of the first element 118 and a plurality of second receiving means 120 for receiving electrical terminals on the second element 122. At least one of the first receptacles 116 is disposed in a first plane 124 and at least two of the first receptacles 116 are disposed in a second plane 126. The first plane 124 is disposed parallel to the second plane 126. At least one of the first receptacles 116 disposed in the first plane 124 is disposed so as to partially overlap in projection onto the second plane 126 and is disposed offset from at least one of the second receptacles 120 disposed in the second plane 126.
The junction box 110 has here six first receptacles 116 for receiving electrical terminals of a first element 118 and six second receptacles 120 for receiving electrical terminals of a second element 122.
The junction box 110 here shows three first receptacles 116 in a first plane 124 for receiving electrical terminals of the first element 118 and three first receptacles 116 in a second plane 126 for receiving electrical terminals of the first element 118 and three second receptacles 120 in a third plane 128 for receiving electrical terminals of the second element 122 and three second receptacles 120 in a fourth plane 130 for receiving electrical terminals of the second element 122.
Junction box 110 has six fixtures 132. The fixing means 132 consist of a hole 136 in which a screw 138 is received. The fastening means 132 are designed such that the electrical terminals of the first element 118 are electrically connected with at least one electrical terminal of the second element 122.
Terminal block 110 is mounted in insulating housing 140. The electrical terminals of the first element 118 and the electrical terminals of the second element 122 are configured tongue-shaped. The embodiments shown in fig. 1 to 3 are exemplary, the elements 122 and 118 also being able to be pressed together and inserted into the cable sleeve 20.
The embodiment according to the invention according to fig. 4 relates to an electric machine mounted in a transmission and connected to its inverter via a wall of a transmission housing 180, wherein the inverter is mounted outside the transmission housing.
By mounting the motor in an environment having transmission oil and terminals passing through the lead-through of the transmission housing, the terminals must be oil-tight and sealed. The transmission and the inverter are subjected to splash water from the outside, so that the electrical terminals must also be sealed here in order to prevent intrusion of water.
Fig. 4 furthermore shows, at least in part, the connection of the motor (not shown) to the housing 175 and to the terminal block 110 for connection to the inverter. Only a portion of the inverter housing 170 is shown in the inverter. The inverter is secured with its inverter housing 170 to the transmission housing 180. The junction box 110 is partially located in the inverter housing 170. The inverter housing 170 partially surrounds the insulating housing 140.
The junction box 110 and the inverter housing 170 are closed by a mounting cover 172. Further, the sensor hub 10 is visible in this example.
The solution according to the invention is more clearly shown in fig. 5.
In the housing of the motor 175, the electrical terminals of the first element 118 are guided through the feedthrough 6, which is individually sealed in the feedthrough 6 for each electrical terminal 118, i.e. for each phase. For this purpose, a sealing lip 2 is used. The lead-through 6 with the sealing lip is then cast with plastic.
Here, too, solutions can be considered which are sealed by casting alone.
After this, the cable connector bushings 20 are each pressed onto the sealed phase terminals, i.e. the electrical terminals of the first element 118, and the sensor connector 10 is mounted. The third radial seal 3 is also mounted on the sensor hub 10.
In parallel with this, the junction box 110 is mounted in its entirety, wherein the electrical terminals can be screwed or clamped. The terminal box has a circumferential flange 7 which extends to the housing of the motor 175. The flange 7 forms a first surface 7a extending towards the housing 175 of the motor and a second surface 7b extending towards the transmission housing 180. Circumferential grooves can be provided on these surfaces, into which sealing rings as the first axial seal 4a and the second axial seal 4b are inserted.
Terminal block 110 is pressed against housing 175 of the motor via first axial seal 4 a.
The motor is then mounted in the transmission with the second axial seal 4b pressed against the transmission housing 180. Here, flange 7 of terminal block 110 extends inside transmission 180 while the rest of terminal block 110 extends outside.
The inverter is then installed, wherein the inverter is externally mounted to the transmission housing 180. The converter housing 170 is pressed onto the terminal box via the first radial seal 5.
Since the terminal block 110 is still open at this point in time of installation, the screws of the fixing device 132 are now introduced and the electrical terminals are connected. The mounting cap 172 is then closed, which can be accomplished by screwing, clamping or bonding. The mounting cap likewise has a second radial seal 1.
List of reference numerals:
1. sealing element for mounting cover
2. Sealing lip
3. Sealing element of sensor connector
4a, 4b axial seal
5. Radial seal for junction box
6. Threading part
7. Flange
7a, 7b surfaces
110. Junction box
116. First accommodating device
118. Electrical terminal of first element
120. Second accommodating device
122. Electrical terminal of second element
124. First plane
126. Second plane
128. Third plane
130. Fourth plane
132. Fixing device
136. Hole(s)
138. Screw
140. Insulating shell
148. Inverter with a power supply
150. Motor with a motor housing
170. Connection shell
172. Mounting cover
175. Motor shell
180. Transmission case
Claims (7)
1. A method for mounting a transmission unit having an electric motor and a converter in a transmission housing, wherein the electric motor is arranged in the interior of a transmission housing (180) and is provided with a lead-through for an electric terminal (118) of the converter, through a housing (175) of the electric motor and the transmission housing (180), wherein the housing (175) of the electric motor has a lead-through (6) for sealing of the electric terminal (118), and a terminal box (110) is provided, which is arranged between the electric motor and the converter for electrically connecting the electric motor with the converter, and a flange (7) of the terminal box extends into the interior of the transmission housing, wherein an axial seal and a radial seal are provided on the terminal box (110) in relation to a rotor axis of the electric motor,
characterized in that the method has the following steps:
the sealing lip (2) is mounted on an electrical terminal (118) in a lead-through (6) of a housing (175) of the electrical machine,
a cable splice enclosure (20) is mounted to the terminal,
the terminal box (110) is mounted on the housing (175) of the electric machine by means of a first axial seal (4 a),
the electric machine with the terminal box (110) is mounted on the transmission housing (180) by means of a second axial seal (4 b),
the converter is mounted on the junction box (110) by means of a first radial seal (5),
the electrical connection is screwed down and the electrical connection is then tightened,
the opening of the converter housing (170) is closed by means of a second radial seal (1) with a mounting cover (172).
2. Method according to claim 1, characterized in that the lead-through (6) on the housing (175) of the electric machine is sealed at least with a sealing lip (2), respectively.
3. The method according to claim 1 or 2, characterized in that the lead-through (6) on the housing (175) of the electric machine is sealed with a casting material.
4. The method according to claim 1 or 2, characterized in that the flange (7) of the junction box (110) is sealed against the housing (175) of the electric machine and the transmission housing (180) by a first axial seal (4 a) and a second axial seal (4 b) extending on the surfaces (7 a, 7 b) of the flange (7), respectively.
5. A method according to claim 1 or 2, characterized in that a first radial seal (5) seals the junction box (110) against the converter housing (170).
6. The method according to claim 1 or 2, characterized in that a third radial seal (3) seals the sensor hub (10) against the junction box (110).
7. The method according to claim 1 or 2, characterized in that the seal is constituted via a sealing ring or via bonding or pouring.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019207042.6A DE102019207042A1 (en) | 2019-05-15 | 2019-05-15 | Gear unit and assembly of a gear unit with terminal block |
| DE102019207042.6 | 2019-05-15 | ||
| PCT/EP2020/062444 WO2020229228A1 (en) | 2019-05-15 | 2020-05-05 | Transmission unit and assembly of a transmission unit having a terminal block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113826311A CN113826311A (en) | 2021-12-21 |
| CN113826311B true CN113826311B (en) | 2023-12-01 |
Family
ID=70617101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080035261.0A Active CN113826311B (en) | 2019-05-15 | 2020-05-05 | Transmission unit and installation of a transmission unit with a junction box |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3970263A1 (en) |
| CN (1) | CN113826311B (en) |
| DE (1) | DE102019207042A1 (en) |
| WO (1) | WO2020229228A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022201260A1 (en) | 2022-02-08 | 2023-08-10 | Zf Friedrichshafen Ag | Housing part with service access |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063454A (en) * | 2006-04-28 | 2007-10-31 | 上海凯泉泵业（集团）有限公司 | Non leakage fully power closed type vertical self priming pump |
| CN101660607A (en) * | 2008-08-25 | 2010-03-03 | 通用汽车环球科技运作公司 | Seals for transmission drive motors |
| CN201541167U (en) * | 2008-06-18 | 2010-08-04 | 索尤若驱动有限及两合公司 | Motor |
| CN102379068A (en) * | 2009-03-31 | 2012-03-14 | 罗伯特·博世有限公司 | Seal for perpendicular feed-through of a gearbox plug |
| DE102016204968A1 (en) * | 2016-03-24 | 2017-09-28 | Robert Bosch Gmbh | Electric machine and method for manufacturing an electrical machine |
| DE102018109407A1 (en) * | 2017-04-21 | 2018-10-25 | Ford Global Technologies, Llc | CONNECTOR BLOCK ASSEMBLY FOR ELECTRIFIED VEHICLES |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7607220B2 (en) * | 2004-03-22 | 2009-10-27 | Gm Global Technology Operations, Inc. | Method for establishing electrical connections in a hybrid electro-mechanical transmission |
| DE102007024472A1 (en) * | 2007-05-25 | 2008-11-27 | Volkswagen Ag | Gear casing for electrical drive unit of windscreen wiper, has ventilation opening formed in plug housing, and diaphragm staying in connection with ventilation opening over free space between plug connector and plug housing |
| JP5194609B2 (en) * | 2007-07-26 | 2013-05-08 | 住友電装株式会社 | Connector for equipment |
| DE102011081896A1 (en) * | 2011-08-31 | 2013-02-28 | Zf Friedrichshafen Ag | Electromotor i.e. inner rotor-type permanent-excited electrical synchronous machine, for e.g. electrical vehicle, has terminal conductors airtightly connected with insulating body, and sealing element arranged between housing and body |
| DE102012223431A1 (en) * | 2012-12-17 | 2014-06-18 | Robert Bosch Gmbh | Housing for an electric machine with a seal |
| WO2014171019A1 (en) * | 2013-04-15 | 2014-10-23 | Yazaki Corporation | Resin molded product and waterproof shielded connector |
| FR3034584B1 (en) * | 2015-04-02 | 2019-06-07 | Valeo Equipements Electriques Moteur | ASSEMBLY COMPRISING A ROTATING ELECTRICAL MACHINE POSITIONED INSIDE AN ENCLOSURE |
| DE102016113424A1 (en) * | 2016-07-20 | 2018-01-25 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Terminal block for an electrical connection |
| KR102466583B1 (en) * | 2016-10-14 | 2022-11-15 | 로베르트 보쉬 게엠베하 | Methods for electrical contact of windings of electrical machines with printed circuit boards |
| US20190032657A1 (en) * | 2017-07-31 | 2019-01-31 | Nidec Tosok Corporation | Electric oil pump |
-
2019
- 2019-05-15 DE DE102019207042.6A patent/DE102019207042A1/en active Pending
-
2020
- 2020-05-05 WO PCT/EP2020/062444 patent/WO2020229228A1/en unknown
- 2020-05-05 EP EP20724790.9A patent/EP3970263A1/en active Pending
- 2020-05-05 CN CN202080035261.0A patent/CN113826311B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063454A (en) * | 2006-04-28 | 2007-10-31 | 上海凯泉泵业（集团）有限公司 | Non leakage fully power closed type vertical self priming pump |
| CN201541167U (en) * | 2008-06-18 | 2010-08-04 | 索尤若驱动有限及两合公司 | Motor |
| CN101660607A (en) * | 2008-08-25 | 2010-03-03 | 通用汽车环球科技运作公司 | Seals for transmission drive motors |
| CN102379068A (en) * | 2009-03-31 | 2012-03-14 | 罗伯特·博世有限公司 | Seal for perpendicular feed-through of a gearbox plug |
| DE102016204968A1 (en) * | 2016-03-24 | 2017-09-28 | Robert Bosch Gmbh | Electric machine and method for manufacturing an electrical machine |
| DE102018109407A1 (en) * | 2017-04-21 | 2018-10-25 | Ford Global Technologies, Llc | CONNECTOR BLOCK ASSEMBLY FOR ELECTRIFIED VEHICLES |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3970263A1 (en) | 2022-03-23 |
| CN113826311A (en) | 2021-12-21 |
| DE102019207042A1 (en) | 2020-11-19 |
| WO2020229228A1 (en) | 2020-11-19 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |