Fluid line system for guiding fluid, in particular for a motor vehicle, and air conditioning device for a motor vehicle, in particular a HVAC device

Patent metadata

Field	Value
Publication number	US-11299008-B2
Application number	US-202016858579-A
Country	US
Kind code	B2
Filing date	Apr 24, 2020
Priority date	Apr 25, 2019
Publication date	Apr 12, 2022
Grant date	Apr 12, 2022

Abstract

The present invention relates to a fluid line system (10) for guiding fluid, in particular for a motor vehicle. The fluid line system (10) comprises a sensor device (20) for capturing sensor parameters and a housing (30), which has two or more housing parts (40, 60). Each housing part (40, 60) has a mounting surface area (50, 70) for arranging a further housing part (40, 60). The housing (30) further has a groove arrangement (80), which comprises at least one groove recess (90), which is arranged on a mounting surface area (50, 70), wherein a groove recess (90) has a groove opening (95), which opens out to the respective mounting surface area (50, 70). In any case, the groove opening (95) is closed by in a fluid-tight manner means of the mounting surface area (50, 70) of at least one further housing part (40, 60). It is attained thereby that a fluid duct (99), through which fluid can flow and through which fluid can be applied to the sensor device (20), is limited between the respective groove recess (90) and the respective mounting surface area (50, 70).

First claim

The invention claimed is:

1. A fluid line system for guiding fluid in a HVAC device, comprising:
a sensor device for capturing sensor parameters,
a housing including at least two housing parts,
wherein each of the at least two housing parts has a mounting surface area for arranging a further housing part,
wherein the housing has a groove arrangement including at least one groove recess that is arranged on the mounting surface area of at least one of the two housing parts,
wherein the at least one groove recess has a groove opening that opens out to the mounting surface area, and
wherein the groove opening is closed via the mounting surface area of at least one further housing part to limit a fluid duct, through which fluid can flow and be applied to the sensor device, between the at least one groove recess and the mounting surface area.

2. The fluid line system according to claim 1 , wherein the at least one groove recess includes two or more groove recesses arranged on a single housing part of the at least two housing parts, and wherein the respective groove openings of the two or more groove recesses each open out at the mounting surface area of the single housing part and are closed by a mounting surface area of at least one further housing part of the at least two housing parts to provide two or more fluid ducts, through which fluid can flow.

3. The fluid line system according to claim 1 , wherein the at least two housing parts each have a single or two or more groove recesses arranged thereon, the respective groove openings of which open out at the mounting surface area of the respective one of the at least two housing parts and are closed by the mounting surface area of at least one further housing part to provide a single or two or more fluid ducts, through which fluid can flow.

4. The fluid line system according to claim 1 , wherein:
two housing parts are provided that each have a single or several groove recesses arranged thereon, the respective groove openings of which open out at the mounting surface area of the respective one of the two housing parts, and
the single or several groove recesses of the two housing parts are arranged on the respective mounting surface areas located opposite to one another in pairs such that a respective groove recess of one of the two housing parts and a further respective groove recess of a further one of the two housing parts together define the fluid duct, through which fluid can flow.

5. The fluid line system according to claim 1 , wherein two or more fluid ducts are provided, in each case combined in pairs, that open out into a measuring section arranged on the housing for sucking in and blowing out fluid, and a sensor supply section for providing fluid on the sensor device.

6. The fluid line system according to claim 5 , further comprising at least one of:
at least two fluid connections for connecting a fluid supply device or fluid supply points for sucking in and blowing out fluid arranged on the measuring section, wherein each of the at least two fluid connections are fluidically connected to a single fluid duct, and
a fluidic connection provided between a fluid duct and a fluid connection via a fluid connecting duct, that extends through a respective one of the at least two housing parts.

7. The fluid line system according to claim 6 , wherein at least one of:
at least one of the fluid supply points has a nozzle-shaped measuring tapping body, structured and arranged to tap supply air or exhaust air or a combination of supply air and exhaust air from a surrounding atmosphere, and
a measuring tapping body comprising a cylindrical hollow body is arranged on the housing such that fluid can flow through an open flow cross section thereof via a fluid connecting duct to the fluid duct.

8. The fluid line system according to claim 1 , wherein:
the at least one groove recess includes a duct separating body arranged therein that separates the at least one groove recess into two or more chambers, which are separated from one another, and
the groove opening of the at least one groove recess is closed by the mounting surface area of at least one further housing part of the at least two housing parts such that two or more fluid ducts, through which fluid can flow and which can be operated separately from one another, are limited between the at least one groove recess and the respective mounting surface area and the duct separating body, so that two or more fluid flows, which are independent of one another, can each be guided through the at least one groove recess.

9. The fluid line system according to claim 1 , wherein at least one of:
a duct separating body is provided that is an elastic tubular soft body of plastic material and has a circular cross section and during operation abuts against groove flanks and a groove base of the at least one groove recess and the mounting surface area all around in a fluid-tight manner like a seal, and
a duct separating body is provided that defines a longitudinal duct body axis, with respect to which the duct separating body has a completely continuous H-shaped or E-shaped cross section.

10. The fluid line system according to claim 1 , further comprising a support body for at least one of supporting a sealing function of a sealing body inserted into the fluid duct and supporting a duct separating body, is inserted or can be inserted into the at least one groove recess, wherein the support body is a flat body that extends longitudinally through the at least one groove recess.

11. The fluid line system according to claim 10 , wherein the support body is inserted into the at least one groove recess and tensioned against a duct separating body, so that the duct separating body is pressed and fixed against groove flanks and a groove base of the at least one groove recess, and separates the at least one groove recess into two separate fluid ducts, through which fluid can flow.

12. The fluid line system according to claim 1 , further comprising at least one of:
a sealing body that abuts against the respective mounting surface areas and the groove opening to form a seal, arranged between at least two mounting surface areas that abut against one another with contact, to seal the fluid duct,
a sealing body inserted as an insert into the at least one groove recess, and
a sealing body molded onto at least one of the respective mounting surface areas as an injection molded part and provides a surface coating.

13. The fluid line system according to claim 1 , further comprising a filter body arranged in the fluid duct and oriented transversely to the fluid flow for filtering the fluid that flows through the fluid duct, wherein the fluid duct opens out at a first measuring section arranged on the housing and arranged downstream with respect to a filtration point, and a second measuring section arranged upstream with respect to the filtration point, wherein the sensor device is arranged on the first measuring section and the second measuring section to measure a pressure gradient between the first measuring section and the second measuring section for detecting a filtration performance.

14. The fluid line system according to claim 1 , further comprising at least one of:
one or several positioning protrusions, extending along the mounting surface area for mutually aligning the at least two housing parts relative to one another, are arranged on at least one of the housing parts, wherein, starting at the mounting surface area, at least one positioning protrusion protrudes into the groove opening of a groove recess of an opposite housing part to define the fluid duct, an

Assignees

• Mahle Int Gmbh

Inventors

• Eberle Daniel
• Klein Florian
• Reiter Anja
• Schultze Oliver
• Wolf Walter

Classifications

• F25B2700/00

  Sensing or detecting of parameters; Sensors therefor · CPC title

• B60H1/00007

  Combined heating, ventilating, or cooling devices (control systems or mechanisms B60H1/00642) · CPC title

• B60H1/00564

  of air ducts · CPC title

• B60H1/00735

  Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models · CPC title

• B60H1/00557 Primary

  Details of ducts or cables · CPC title