Method for producing a sensor housing and corresponding sensor housing

• US 9,891,081 B2
• Filed: 12/19/2013
• Issued: 02/13/2018
• Est. Priority Date: 12/27/2012
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Henzler, Stephan, Herrmann, Alexander, Woernle, Wolfgang, Bertsch, Benjamin
• Primary Examiner(s): Macchiarolo, Peter
• Assistant Examiner(s): Shah, Samir M
• Application Number:
  US14/758,137
• Publication Number:
  US 20150330859A1
• Time in Patent Office: 1,517 Days
• CPC Class Codes: G01D 11/245 Housings for sensors
• CPC Class Codes: G01L 19/14 Housings G01L19/0007, G01L19/0084, G01L19/0092, G01L19/04, G01L19/06 take precedence
• CPC Class Codes: G01L 19/143 Two part housings
• CPC Class Codes: G01L 19/147 Details about the mounting of the sensor to support or covering means
• CPC Class Codes: Y10T 29/49828 Progressively advancing of work assembly station or assembled portion of work

Abstract

A method for producing a sensor housing comprises forming three seals including a first annular seal and a second annular seal connected to each other by a connecting web formed materially integral in a unipartite fashion with the first annular seal and the second annular seal, and positioning the first annular seal and the second annular seal on a housing shell of the sensor housing.

Claims

1. A method for producing a sensor housing, comprising:

forming three seals a first, a second and a third annular seal connected to each other by respective connecting webs formed materially integral in a unipartite fashion with the first, second and third annular seals; and

positioning the first, second and third annular seals on a housing shell of the sensor housing,

further comprising;

placing the housing shell into a casting mold having three seal-receiving channels of closed form in a circumferential direction, the three seal-receiving channels being fluidly connected to each other by respective overflow channels;

introducing a casting material via one of the three seal-receiving channels at an injection point, until the three seal-receiving channels are filled with the casting material, in order to form the three seals in the three seal-receiving channels, and

wherein one of the three seal-receiving channels, which is located furthest downstream as viewed in a flow direction of the casting material, is fluidly connected via a further overflow channel to an overflow chamber configured to receive the casting material.

2. The method as claimed in claim 1, wherein:

at least two of the three seal-receiving channels are formed on opposite sides of the housing shell; and

at least one overflow channel is formed at least partially by an aperture extending through the housing shell.

3. The method as claimed in claim 1, wherein two of the three seal-receiving channels are formed at different positions in a vertical direction.

4. The method as claimed in claim 1, wherein the three seal-receiving channels extend in the circumferential direction around a common axis such that the three seal-receiving channels completely encircle the common axis.

5. The method as claimed in claim 1, wherein the injection point is located opposite an overflow channel assigned to one of the three seal-receiving channels with the injection point.

6. The method as claimed in claim 1, wherein two of the three overflow channels open at opening points into the same one of the three seal-receiving channels, the opening points being located oppositely with respect to a third of the three seal-receiving channels.

7. The method as claimed in claim 1, further comprising:

placing a housing cover in sealing contact with at least one of the three annular seals such that the first annular seal is forced in the direction of an aperture in order to impart a sealing covering action.