Connection element for connecting lines for conducting a fluid

Patent metadata

Field	Value
Publication number	US-12480607-B2
Application number	US-202218718297-A
Country	US
Kind code	B2
Filing date	Dec 5, 2022
Priority date	Dec 9, 2021
Publication date	Nov 25, 2025
Grant date	Nov 25, 2025

Abstract

A connection element for connecting lines for conducting a fluid, in particular of a fluid circuit of an air-conditioning system of a motor vehicle, is based on the object of specifying a connection element which has high rigidity and low weight and which allows a fluid-tight connection with low production costs. This object is achieved in that the connection element has an attachment means and a connection means, wherein the connection means is arranged in a recess in the attachment means.

First claim

The invention claimed is:

1 . A connection element for connecting lines for conducting a fluid, the connection element arranged between a first line and an attachment opening of a connector of a component of a fluid circuit, or between the first line and a second line of the fluid circuit, wherein the connection element has an attachment means and a connection means, wherein the connection means is arranged in a recess in the attachment means, wherein the connection means has, on a first side, an attachment flange and a first tubular element.

2 . The connection element according to claim 1 , wherein the attachment means is formed from aluminum, steel, a composite material, a high-performance plastic or a glass fiber material.

3 . The connection element according to claim 1 , wherein the connection means is formed from a polymer, a polyethylene (PE), a polypropylene (PP), a polyvinyl chloride (PVC), a polyamide (PA), or a polyamide with glass fibers.

4 . The connection element according to claim 1 , wherein the first tubular element receives the first line.

5 . The connection element according to claim 1 , wherein the connection means has, on a second side opposite the first side, a connection flange and a second tubular element.

6 . The connection element according to claim 5 , wherein a first longitudinal axis of the first tubular element and a second longitudinal axis of the second tubular element are arranged parallel to one another or coaxially with one another, or at an angle within a range of 90° to 180° to one another in the connection means.

7 . The connection element according to claim 5 , wherein the connection flange and the second tubular element are arranged at an attachment opening of a component of a refrigerant circuit.

8 . The connection element according to claim 7 , wherein an annular sealing means is arranged between the connection flange and the attachment opening.

9 . The connection element according to claim 1 , wherein two first faces are formed in the recess in the attachment means, and two second faces are formed on the connection means, wherein, when the connection means is installed in the recess in the attachment means, the first faces are arranged bearing against the second faces.

10 . A connection element for connecting lines for conducting a fluid, the connection element arranged between a first line and an attachment opening of a connector of a component of a fluid circuit, or between the first line and a second line of the fluid circuit, wherein the connection element has an attachment means and a connection means, wherein the connection means is arranged in a recess in the attachment means, wherein the attachment means has, in a region of the recess, a cut-out region surrounding the recess, and wherein the cut-out region is provided on an outer surface of the attachment means.

11 . The connection element according to claim 10 , wherein the cut-out region has at least one locking element.

12 . The connection element according to claim 11 , wherein the at least one locking element is designed with a height within a range of 0.1 mm to 3.0 mm.

13 . The connection element according to claim 11 , wherein the at least one locking element has a length within a range of 1.0 mm to 5.0 mm.

14 . The connection element according to claims 11 , wherein the at least one locking element has a radius within a range of 0.1 mm to 3.0 mm.

15 . The connection element according to claim 10 , wherein two straight outer contours of an attachment flange of the connection means are oriented at a first angle to one another, and that two straight regions of an inner contour of the cut-out region of the attachment means are oriented at a second angle to one another, wherein a difference between the first angle and the second angle is within a range of −5° to +5°.

16 . The connection element according to claims 15 , wherein the at least one locking element has a third angle within a range of 90° to 180°.

Assignees

• Hanon Systems

Inventors

• Cech Radim
• Kubricky Jakub
• Kesler Eric

Classifications

• F16L47/14

  Flanged joints · CPC title

• F16L47/02

  Welded joints; Adhesive joints · CPC title

• F25B41/40

  Fluid line arrangements · CPC title

• F16L23/0286 Primary

  the shoulder not being formed from the pipe · CPC title

• B60H1/00571 Primary

  of liquid ducts, e.g. for coolant liquids or refrigerants · CPC title