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US 12,753,640 B2Granted
Actuator for motor vehicle applications
AssigneeKiekert AG
InventorsMichael Berres, Stefan Adamik
Life of this patent
Estimating the term…
Abstract
An actuator having a housing with a housing shell and at least one housing cover, wherein the housing parts can be connected together over a contact region by means of laser welding; a first sealed chamber in which a drive unit is arranged; and at least one second sealed chamber. A separation of the sealed chambers can be achieved by means of weldable connecting webs in the interior of the housing, and a passage between the chambers can be sealed by a seal in the connecting webs. Different levels of tightness can be formed in the sealed chambers.
Claims12
An actuator comprising:
- a housing with a housing shell and at least one housing cover, the housing shell and the at least one housing cover being configured to be connected together over a contact region by laser welding,
- the housing shell defining a first chamber in which a drive unit is arranged, and a second chamber in which an actuating means is arranged,
- weldable connecting webs positioned in an interior of the housing shell, the first chamber and the second chamber being configured for a separation of the first and second chambers to be achieved by the weldable connecting webs, and
- a passage between the first and second chambers sealed by a seal in the connecting webs such that the first chamber is sealed with respect to the second chamber, wherein different levels of tightness are formed in the first chamber versus the second,
- wherein the drive unit arranged in the first chamber comprises a motor, a worm, a worm gear wheel, and a resetting means,
- wherein the actuating means is moved out of the second chamber, and further comprising at least one actuator seal, wherein the actuating means is guided in a sealing manner in the housing via the at least one actuator seal.
3 more elements
An actuator comprising:
- a housing with a housing shell and at least one housing cover, the housing shell and the at least one housing cover being configured to be connected together over a contact region by laser welding,
- the housing shell defining a first chamber in which a drive unit is arranged, and a second chamber in which an actuating means is arranged,
- weldable connecting webs positioned in an interior of the housing shell, the first chamber and the second chamber being configured for a separation of the first and second chambers to be achieved by the weldable connecting webs, and
- a passage between the first and second chambers sealed by a seal in the connecting webs such that the first chamber is sealed with respect to the second chamber, wherein different levels of tightness are formed in the first chamber versus the second,
- wherein the drive unit arranged in the first chamber comprises a motor, a worm, a worm gear wheel, and a resetting means, and
- wherein the tightness level is established by an interruption of a weld seam.
3 more elements
An actuator comprising:
- a housing with a housing shell and at least one housing cover, the housing shell and the at least one housing cover being configured to be connected together over a contact region by laser welding,
- the housing shell defining a first chamber in which a drive unit is arranged, and a second chamber in which an actuating means is arranged,
- weldable connecting webs positioned in an interior of the housing shell, the first chamber and the second chamber being configured for a separation of the first and second chambers to be achieved by the weldable connecting webs, and
- a passage between the first and second chambers sealed by a seal in the connecting webs such that the first chamber is sealed with respect to the second chamber, wherein different levels of tightness are formed in the first chamber versus the second,
- wherein the drive unit arranged in the first chamber comprises a motor, a worm, a worm gear wheel, and a resetting means,
- wherein the actuating means is moved out of the second chamber,
- wherein the second chamber has a lower tightness level than the first chamber, and
- wherein the second chamber that includes the actuating means has a spindle drive.
5 more elements
Dependencies are inferred from the claim text.