Drive unit

Abstract

A drive unit (1) has a housing (2) and an output-side element (3). The housing (2) has at least two webs (8) that lie opposite one another and that project from the housing (2) in a manner so that the webs (8) are spaced apart from one another. The webs (8) are configured to fasten the housing (2) to a mounting unit (7).

Claims

1. A drive unit configured for mounting on first and second abutment surfaces of a mounting unit, the drive unit comprising: a housing and an output-side element, the housing having first and second webs that lie opposite one another, the webs projecting from the housing and being spaced apart from one another, the first and second webs being formed respectively with first and second mounting surfaces disposed for mounting respectively on the first and second abutment surfaces of the mounting unit and first and second outer surfaces converging obliquely toward one another at farther distances from the mounting surfaces, and first and second clamps formed respectively with first and second clamping surfaces engaged respectively against the first and second outer surfaces of the respective webs, the clamps being loaded against the mounting unit and against the outer surfaces of the webs so that the clamps clamp the webs against the abutment surfaces of the mounting unit.

2. The drive unit of claim 1, wherein the outer surfaces of the webs are arranged at an angle of more than 60 and less than 180 with respect to one another.

3. The drive unit of claim 1, wherein at least one of the webs is connected to the housing by transverse ribs that protrude from the respective web.

4. The drive unit of claim 3, further comprising transverse ribs on each of the webs, the respective transverse ribs of each of the webs being oriented in a direction toward the respective other web.

5. The drive unit of claim 4, wherein the transverse ribs are arranged substantially between the webs.

6. The drive unit of claim 1, wherein the webs define dovetail-shaped projections of a dovetail guide.

7. The drive unit of claim 1, wherein the drive unit is an electric motor.

8. A drive arrangement, comprising: a mounting unit comprising first and second abutments surfaces; a drive unit having housing with first and second webs projecting from the housing and being spaced apart from one another, the first and second webs being formed respectively with first and second mounting surfaces disposed for mounting respectively on the first and second abutment surfaces of the mounting unit and first and second outer surfaces converging obliquely toward one another at farther distances from the mounting surfaces; and first and second clamps formed respectively with first and second clamping surfaces engaged respectively against the first and second outer surfaces of the respective webs, the clamps being loaded against the mounting unit and against the outer surfaces of the webs so that the clamps clamp the webs against the abutment surfaces of the mounting unit.

9. The drive arrangement of claim 8, wherein the clamping surfaces converge obliquely toward one another at farther distances from the mounting unit.

10. The drive arrangement of claim 8, wherein the outer surfaces of the outer surfaces of the webs are arranged at an angle of more than 60 and less than 180 with respect to one another.

11. The drive arrangement of claim 8, wherein the drive unit is an electric motor.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a perspective view of a drive unit having a mounting unit.

(2) FIG. 2 is an end view of the drive unit having the mounting unit.

(3) FIG. 3 is a perspective view partly in section and showing a detail of the drive unit having the mounting unit.

(4) FIG. 4 is another perspective view partly in section and showing a detail of the drive unit having the mounting unit.

(5) FIG. 5 is an end view of a detail of the housing of the drive unit.

(6) FIG. 6 is a perspective view of a detail of the housing of the drive unit.

DETAILED DESCRIPTION

(7) FIG. 1 shows a drive unit 1 having an approximately drum-like housing 2 and an output-side element 3. A cover 4 is placed on the housing 2. The cover 4 has an opening 5, and the output-side element 3 is arranged or protrudes through the opening 5 output-side element 3 protrudes. An outer periphery of the cover 4 is connected to the housing 2 by bolts 6. FIG. 2 is an end view of the same drive unit 1.

(8) The drive unit 1 is connected to a mounting unit 7 so that the drive unit 1 is fastened durably by way of the mounting unit 7.

(9) The housing 2 has spaced apart webs 8 that extend in a longitudinal direction 9, as shown in FIG. 3, and the mounting unit 7 has clamps 10 that clamp the webs 8 against an abutment 11 of the mounting unit 7, as shown in FIG. 4.

(10) The housing 2 has at least two spaced apart webs 8 that lie opposite one another and project from the housing 2. The housing 2 can be fastened to a mounting unit 7 by the webs 8.

(11) The webs 8 of the housing 2 can be seen again more clearly in FIGS. 5 and 6. The webs 8 preferably are arranged at an angle of more than 60 and less than 180 with respect to one another, so that a sufficient force in the direction of the abutment 11 results during pressing of the webs by way of the clamps 10.

(12) FIGS. 5 and 6 also show that at least one of the two webs 8 or else advantageously (as shown) both webs 8 are connected to the housing 2 by transverse ribs 12 that protrude from the respective web 8. The transverse ribs 12 and the webs 8 advantageously are configured in one piece with the housing 2. The housing 2 can consist of cast material, such as cast metal. For example, the housing can consist of aluminum, magnesium or an alloy thereof.

(13) FIG. 6 shows an exemplary embodiment, in which transverse ribs 12 are formed on both webs 8, with the respective transverse ribs 12 on each web 8 being oriented toward the other web 8. Thus, the webs 8 with the respective transverse ribs 12 form a chamber-like structure. The transverse ribs 12 are spaced substantially equidistantly from one another. However, the transverse ribs 12 need not be equally spaced.

(14) The illustrated embodiment shows that transverse ribs 12 are on both webs 8 and are between the webs 8. Thus, the transverse ribs 12 can absorb forces that act laterally from the outside on the two webs 8, as shown by the arrows 14 of FIG. 2.

(15) Sides of the webs 8 that face away from the transverse ribs 12 are smooth and form a type of rail.

(16) It can also be seen that the two webs 8 configure dovetail-like projections of a dovetail guide.

(17) The drive unit 1 preferably is an electric motor. As an alternative, however, the drive unit 1 can be another power unit, for example an internal combustion engine or a hybrid engine with an electric motor and an internal combustion engine.

(18) Overall, FIGS. 1 to 6 also show an exemplary embodiment of an arrangement 13 of a drive unit 1 with a mounting unit 7. The mounting unit 7 has a receptacle 15 for receiving the webs 8 of the drive unit 1. As a result, the clamps 10 push the webs 8 into the receptacle 15 and thereby fasten the housing 2 to the mounting unit 7.

(19) The mounting unit 7 has the clamps 10 that act on the webs 8 of the drive unit 1 to fasten the webs 8 of the housing 2 in the receptacle 15 of the mounting unit 7. The clamps 10 can be clamping jaws that can be loaded, for example, by bolts so that the webs 8 can be clamped against the abutments 11. A clamp 10 thus preferably is provided for each of the webs 8 and clamps the respective web 8 against an abutment 11. As an alternative, only one of the webs can be loaded by a clamp 10, whereas the other web engages into a guide. Single-sided loading for clamping would be brought about as a result.