Collector tube for a heat exchanger

Patent metadata

Field	Value
Publication number	US-11143464-B2
Application number	US-201916691572-A
Country	US
Kind code	B2
Filing date	Nov 21, 2019
Priority date	Nov 23, 2018
Publication date	Oct 12, 2021
Grant date	Oct 12, 2021

Abstract

A collector tube for a heat exchanger, which may have at least one flat tube, may include a base and a cover arranged opposite one another and embodying a longitudinal duct. The base may have at least one passage having an opening for accommodating the at least one flat tube of the heat exchanger. The at least one passage may have a collar, which may extend away from the longitudinal duct. The cover may have at least one notch, which may be located opposite the at least one passage and which may be embodied for accommodating a subarea of the at least one flat tube.

First claim

The invention claimed is:

1. A collector tube for a heat exchanger, which has at least one flat tube, comprising:
a base and a cover;
wherein the cover is arranged so as to be located opposite the base;
wherein the base and the cover embody a longitudinal duct;
wherein the base has at least one passage comprising an opening for accommodating the at least one flat tube of the heat exchanger;
wherein the at least one passage has a collar, which extends away from the longitudinal duct;
wherein the cover has at least one notch, which is located opposite the at least one passage and which is embodied for accommodating a subarea of the at least one flat tube;
wherein the base has a recess, through which a separator is introduced into the collector tube in an insertion position;
wherein the separator has a separating wall comprising a separating wall thickness, wherein a clearance fit is present between the separating wall and the recess in response to the insertion of the separator;
wherein the separating wall provides at least one elevation for attaining an increase of the separating wall thickness in a subarea of the separator;
wherein in the insertion position, the at least one elevation is arranged in an area of the recess; and
wherein in the insertion position, a press fit is present between the at least one elevation and the recess.

2. The collector tube according to claim 1 , wherein the cover has an outer diameter, which is smaller than or equal to a width of the at least one flat tube, wherein the notch is embodied inside the outer diameter.

3. The collector tube according to claim 1 , wherein the at least one notch includes at least two notches, which are located opposite one another and which are each embodied for accommodating a subarea of the at least one flat tube.

4. The collector tube according to claim 1 , wherein the at least one notch has a trapezoidal embodiment.

5. The collector tube according to claim 1 , wherein the opening of the at least one passage tapers at least partially towards the longitudinal duct.

6. The collector tube according to claim 1 , wherein the base has at least one reinforcing bead.

7. The collector tube according to claim 1 , wherein the base has an outer base surface, which is at least partially provided with a protective layer.

8. The collector tube according to claim 7 , wherein the separator has a ledge, which, in the insertion position, is arranged outside of the longitudinal duct.

9. A heat exchanger, comprising
a plurality of flat tubes, which are spaced apart from one another;
at least one collector tube fluidically connecting the flat tubes to one another, the at least one collector tube having a base and a cover arranged opposite one another and employing a longitudinal duct;
wherein the base has a passage for each flat tube, each passage comprising an opening for accommodating a respective one of the flat tubes;
wherein each passage has a collar extending away from the longitudinal duct;
wherein the cover has at least one notch for each flat tube, each notch being located opposite a corresponding passage and being embodied for accommodating a subarea of a respective one of the flat tubes;
wherein the flat tubes are each introduced into the opening of a corresponding passage;
wherein front edges of the flat tubes are substantially flush with the base;
wherein the cover has an outer diameter, which is smaller than or equal to a width of the at least one flat tube, wherein the notch is embodied inside the outer diameter, wherein the notch is embodied in an intermediate area between the outer diameter and an inner diameter of the cover, and a wall thickness of the cover substantially corresponds to half of a difference between the outer diameter and the inner diameter.

10. The collector tube according to claim 1 , wherein a base area of the base and an arch area of the cover delimits the longitudinal duct such that the longitudinal duct has a substantially semi-circular cross section with a semi-circular contour formed by the arch area.

11. The collector tube according to claim 1 , wherein at least one of an inner base surface of the base and surface areas of the collar are provided with a solder plating.

12. The collector tube according to claim 2 , wherein the notch is embodied in an intermediate area between the outer diameter and an inner diameter of the cover, and a wall thickness of the cover substantially corresponds to half of a difference between the outer diameter and the inner diameter.

13. The collector tube according to claim 2 , wherein the at least one notch includes at least two notches, which are located opposite one another and which are each embodied for accommodating a subarea of the at least one flat tube.

14. The collector tube according to claim 2 , wherein the at least one notch has a trapezoidal embodiment.

15. The collector tube according to claim 2 , wherein the opening of the at least one passage tapers at least partially towards the longitudinal duct.

16. The collector tube according to claim 2 , wherein the base has at least one reinforcing bead.

17. The collector tube according to claim 2 , wherein the base has an outer base surface, which is at least partially provided with a protective layer.

18. A collector tube for a heat exchanger, which has at least one flat tube, comprising:
a base and a cover arranged opposite one another and embodying a longitudinal duct;
wherein the base has at least one passage comprising an opening for accommodating the at least one flat tube, and a collar extending away from the longitudinal duct;
wherein the cover has at least one notch, which is located opposite the at least one passage and which is embodied for accommodating a subarea of the at least one flat tube; and
wherein a base area of the base and an arch area of the cover delimits the longitudinal duct such that the longitudinal duct has a substantially semi-circular cross section with a semi-circular contour formed by the arch area.

19. The collector tube according to claim 18 , wherein the at least one notch has a trapezoidal embodiment.

Assignees

• Mahle Int Gmbh

Inventors

• Dolderer Axel
• Foerster Uwe
• Kaspar Martin

Classifications

• F28D1/0476

  the conduits having a non-circular cross-section · CPC title

• F28F9/04

  Arrangements for sealing elements into header boxes or end plates {(arrangements for sealing flow lines connectors to header boxes F28F9/0248)} · CPC title

• F28F9/0224 Primary

  Header boxes formed by sealing end plates into covers (F28F9/0221 takes precedence) · CPC title

• F28F9/0212

  the partitions being separate elements attached to header boxes · CPC title

• F28F9/0202

  Header boxes having their inner space divided by partitions · CPC title