CN113826311A - Transmission unit and mounting of a transmission unit with a terminal box - Google Patents
Transmission unit and mounting of a transmission unit with a terminal box Download PDFInfo
- Publication number
- CN113826311A CN113826311A CN202080035261.0A CN202080035261A CN113826311A CN 113826311 A CN113826311 A CN 113826311A CN 202080035261 A CN202080035261 A CN 202080035261A CN 113826311 A CN113826311 A CN 113826311A
- Authority
- CN
- China
- Prior art keywords
- housing
- transmission unit
- electric machine
- transmission
- seal
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 49
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000005266 casting Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
Images
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
Abstract
A transmission unit having an electric machine and an inverter, wherein the electric machine is arranged in the interior of a transmission housing (180) and is provided with feedthroughs for electrical terminals (118) of the inverter, through a housing (175) of the electric machine and the transmission housing (180), wherein the housing (175) of the electric machine has feedthroughs (6) for sealing of the electrical terminals (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 terminal box for electrically connecting an electric machine to an inverter and a method for mounting the transmission unit.
Background
Various electrical components, such as an electric motor, an inverter, a high-voltage battery, and the like, are mounted in a hybrid vehicle or an electric vehicle. 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 102016113424 a1 discloses a screwed-on phase connection in one plane, which has three phases in a terminal block, but in which no seals are present.
A waterproof plug connection is known from DE 112013006946T 5.
The waterproof, shielded plug connector comprises: terminal members provided on end members of the high-voltage cable, respectively; an insulated plug connector housing; a terminal accommodating chamber for accommodating the terminal member; a conductive shielding shell, which is arranged on the outside of the plug connector housing; a shield ring pressing and fixing the connection end of the electromagnetic shield at a predetermined position of the shield case; and a face seal configured for water-tight sealing.
The face seal is pressed onto the shield shell when the shield shell is secured to the device. In this way, the device can be sealed. The face seal is designed in an annular manner, so that the face seal can be inserted into an annular groove of the terminal of the plug connector housing. The face seal and the annular groove are provided as a seal member that prevents intrusion of moisture or the like.
DE 102007024472 a1 shows a transmission housing, but the housing of the electric machine is not shown. The terminal plug terminates flat on the transmission housing, has no flange and does not extend into the interior of the transmission housing. The radial sealing element is arranged on the plug-in connector.
WO 2016/156730 a1 shows an electric machine which is arranged in a housing, wherein a feedthrough in the form of a seal is provided which penetrates the housing. The terminal has a shoulder which extends in the interior of the housing of the electric machine. As a seal, an O-ring is provided, which is a radial seal.
Disclosure of Invention
The object of the invention is to propose an improved water-and oil-proof seal for a transmission unit with a terminal box, wherein the device is also easy to install.
The object is achieved by a transmission unit having an electric machine and a converter in a transmission housing, wherein the electric machine is arranged in the interior of the transmission housing and is provided with leadthroughs for electrical terminals of the converter, which leadthroughs pass through the housing of the electric machine and the transmission housing, wherein the housing of the electric machine has sealed leadthroughs for the electrical terminals, and a terminal box is provided, which terminal box 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 axial and radial seals, a sealing system is applied modularly, which leads to an optimal sealing of the transmission unit.
Preferably, the leadthrough at the housing of the electric machine is sealed at least with one sealing lip each.
Alternatively or additionally, the leadthrough on the housing of the electric machine is sealed with a potting compound.
Advantageously, the flange of the terminal box is sealed with respect to the housing of the electric machine and the transmission housing by means of axial seals extending on the surface of the flange, respectively.
It is also advantageous that the radial seal seals the junction box dense phase against the convector housing.
The radial seal seals the sensor plug against the terminal block.
Advantageously, the radial seal seals a mounting cover closing the opening of the converter housing.
The seal is formed by a sealing ring or by gluing or casting.
The object is also achieved by a method for mounting a transmission unit, having the following steps:
mounting the sealing lip on an electrical terminal in a through-opening of a housing of an electrical machine,
-placing a cable connector bushing onto an electrical terminal,
mounting the terminal box on the housing of the electrical machine by means of an axial seal,
mounting the electric machine with the terminal box on the transmission housing by means of an axial seal,
-mounting the convector on the junction box by means of radial seals,
-tightening 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 drawings and set forth in detail in the description of the drawings. The figures show:
figure 1 shows one 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 of an embodiment according to the invention,
fig. 5 shows an exploded view of the embodiment.
Detailed Description
One embodiment of a terminal block 110 for electrically connecting a first element 112 with a second element 114 is shown in fig. 1 to 3, as is known from the prior art.
The junction box 110 for electrically connecting a first element, i.e. an electrical machine, 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 receiving devices 116 arranged in the first plane 124 is arranged to partially overlap in projection onto the second plane 126 and is arranged offset from at least one of the second receiving devices 120 arranged in the second plane 126.
The terminal box 110 has six first receptacles 116 for receiving electrical connections of a first element 118 and six second receptacles 120 for receiving electrical connections of a second element 122.
The terminal box 110 here shows three first receptacles 116 in a first plane 124 for receiving the electrical connections of the first element 118 and three first receptacles 116 in a second plane 126 for receiving the electrical connections of the first element 118 and three second receptacles 120 in a third plane 128 for receiving the electrical connections of the second element 122 and three second receptacles 120 in a fourth plane 130 for receiving the electrical connections of the second element 122.
The junction box 110 has six fixtures 132. The fastening device 132 is formed by a bore 136, in which a screw 138 is received. The fixing device 132 is 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.
The terminal block 110 is mounted in the insulating case 140. The electrical connections of the first element 118 and the electrical connections of the second element 122 are formed in the form of tongues. The embodiment shown in fig. 1 to 3 is exemplary, the elements 122 and 118 can also be pressed together and inserted into the cable joint sleeve 20.
The embodiment according to the invention according to fig. 4 relates to an electric machine mounted in a transmission and connected via a wall of a transmission housing 180 with its inverter mounted outside the transmission housing.
By mounting the electric machine in the environment of a feedthrough through the transmission housing with transmission oil and terminals, these terminals must be oil-tight and sealed. The transmission and the converter are subjected to splashed water from the outside, so that the electrical terminals must also be sealed here in order to prevent water ingress.
Fig. 4 furthermore shows at least in part the connection of an electric motor (not shown) to the housing 175 and to the terminal box 110 for connection to an inverter. Only a portion of the converter shell 170 is shown in the converter. The inverter is fixed to the transmission housing 180 by its inverter housing 170. The junction box 110 is partially located in the inverter case 170. The inverter case 170 partially surrounds the insulation case 140.
The junction box 110 and the inverter case 170 are closed by a mounting cover 172. Furthermore, a sensor plug 10 can be seen in this example.
The solution according to the invention is shown more clearly in fig. 5.
In the housing of the electric machine 175, the electrical terminals of the first element 118 are guided through the leadthroughs 6, which are individually sealed in the leadthroughs 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 in plastic.
Here, solutions which are sealed by casting alone are also conceivable.
After this, the cable connector sleeves 20 are respectively pressed onto the sealed phase terminals, i.e. the electrical terminals of the first element 118, and the sensor plug 10 is mounted. The radial seal 3 is also mounted on the sensor hub 10.
In parallel with this, the terminal block 110 is completely installed, wherein the electrical terminals can be screwed or clamped. The terminal box has a circumferential flange 7 which extends onto the housing of the motor 175. The flange 7 forms a first surface 7a that extends toward the housing 175 of the motor and a second surface 7b that extends toward the transmission housing 180. Circumferential grooves can be provided on these surfaces, into which sealing rings are inserted as axial seals 4a and 4 b.
The terminal box 110 is pressed against the housing 175 of the motor via the first axial seal 4 a.
The electric machine is then installed into the transmission with the second axial seal 4b pressed against the transmission housing 180. Here, the flange 7 of the terminal block 110 extends inside the transmission 180 and the rest of the terminal block 110 extends outside.
The inverter is then installed, wherein it is externally mounted to the transmission case 180. The converter housing 170 is pressed onto the junction box via the 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 cover 172 is then closed, which can be done by screwing, clamping or gluing. The mounting cap likewise has a radial seal 1.
List of reference numerals:
1 sealing element of mounting cover
2 sealing lip
3 sealing element of sensor connector
4a, 4b axial seal
5 radial seal of junction box
6 threading part
7 Flange
7a, 7b surface
110 terminal box
116 first receiving means
118 electrical terminal of first element
120 second accommodating device
122 electrical terminal of a second element
124 first plane
126 second plane
128 third plane
130 fourth plane
132 fixing device
136 hole
138 screw
140 insulating casing
148 inverter
150 electric machine
170 connecting shell
172 mounting cover
175 motor casing
180 Derailleur housing
Claims (9)
1. A transmission unit having an electric machine and an inverter in a transmission housing, wherein the electric machine is arranged in the interior of the transmission housing (180) and is provided with feedthroughs for electrical terminals (118) of the inverter through a housing (175) of the electric machine and the transmission housing (180), wherein the housing (175) of the electric machine has feedthroughs (6) for sealing of the electrical terminals (118) and is provided with a terminal box (110) whose flange (7) extends into the interior of the transmission housing, wherein an axial seal and a radial seal are provided on the terminal box (110).
2. Transmission unit according to claim 1, characterised in that the feedthroughs (6) on the housing (175) of the electric machine are each sealed at least with a sealing lip (2).
3. Transmission unit 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. Transmission unit according to any of the preceding claims, characterized in that the flange (7) of the terminal box (110) is sealed with respect to the housing (175) of the electric machine and the transmission housing (180) by means of axial seals (4a, 4b) respectively extending on the surfaces (7a, 7b) of the flange (7).
5. A transmission unit according to any one of the preceding claims, characterised in that a radial seal (5) seals the junction box (110) with respect to the converter housing (170).
6. Transmission unit according to any of the preceding claims, characterized in that a radial seal (3) seals the sensor plug (10) with respect to the junction box (110).
7. A transmission unit according to any one of the preceding claims, characterised in that a radial seal (1) seals a mounting cover (172) closing an opening of the converter housing (170).
8. A transmission unit as claimed in any one of the preceding claims, characterised in that the seal is constructed via a sealing ring or via gluing or casting.
9. A method for installing a transmission unit according to claims 1 to 8, the method having the steps of:
the sealing lip (2) is mounted on an electrical terminal (118) in a through-opening (6) of a housing (175) of an electrical machine,
-placing a cable joint sleeve (20) onto the terminal,
mounting a terminal box (110) on a housing (175) of the electric machine by means of an axial seal (4a),
mounting the electric machine with the terminal box (110) on a transmission housing (180) by means of an axial seal (4b),
the convector is mounted on a junction box (110) by means of radial seals (5),
the electric connection part is screwed down, and the electric connection part is screwed down,
the mounting opening is closed by a mounting cover (172) by means of a radial seal (1).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019207042.6 | 2019-05-15 | ||
| DE102019207042.6A DE102019207042A1 (en) | 2019-05-15 | 2019-05-15 | Gear unit and assembly of a gear unit with terminal block |
| 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 true CN113826311A (en) | 2021-12-21 |
| CN113826311B 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 (8)
| 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 |
| US20180102686A1 (en) * | 2015-04-02 | 2018-04-12 | Valeo Equipements Electriques Moteur | Assembly comprising a rotary electrical machine positioned inside an enclosure |
| DE102018109407A1 (en) * | 2017-04-21 | 2018-10-25 | Ford Global Technologies, Llc | CONNECTOR BLOCK ASSEMBLY FOR ELECTRIFIED VEHICLES |
| US20190032657A1 (en) * | 2017-07-31 | 2019-01-31 | Nidec Tosok Corporation | Electric oil pump |
Family Cites Families (8)
| 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 |
| DE102016113424A1 (en) * | 2016-07-20 | 2018-01-25 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Terminal block for an electrical connection |
| WO2018069011A1 (en) * | 2016-10-14 | 2018-04-19 | Robert Bosch Gmbh | Method for electrically contact-connecting a winding of an electrical machine to a printed circuit board |
-
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 CN CN202080035261.0A patent/CN113826311B/en active Active
- 2020-05-05 EP EP20724790.9A patent/EP3970263A1/en active Pending
Patent Citations (8)
| 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 |
| US20180102686A1 (en) * | 2015-04-02 | 2018-04-12 | Valeo Equipements Electriques Moteur | Assembly comprising a rotary electrical machine positioned inside an enclosure |
| 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 |
| US20190032657A1 (en) * | 2017-07-31 | 2019-01-31 | Nidec Tosok Corporation | Electric oil pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113826311B (en) | 2023-12-01 |
| WO2020229228A1 (en) | 2020-11-19 |
| DE102019207042A1 (en) | 2020-11-19 |
| EP3970263A1 (en) | 2022-03-23 |
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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 |