HEAT EXCHANGER

• US 20200132378A1
• Filed: 12/31/2019
• Published: 04/30/2020
• Est. Priority Date: 07/13/2017
• Status: Active Application

• Current Assignee: Hangzhou Sanhua Research Institute Co., Ltd.
• Original Assignee: Hangzhou Sanhua Research Institute Co., Ltd.
• Inventors: DONG, Junqi, GAO, Jianhua, FAN, Xuebin, DONG, Haifeng, GENG, Shijiang
• Application Number:
  US16/732,267
• Publication Number:
  US 20200132378A1
• Time in Patent Office: Days
• CPC Class Codes: F25B 39/00 Evaporators; Condensers
• CPC Class Codes: F28D 1/0316 Assemblies of conduits in parallel F28D1/0325, F28D1/035 take precedence
• CPC Class Codes: F28D 1/0391 a single plate being bent to form one or more conduits
• CPC Class Codes: F28D 1/0435 Combination of units extending one behind the other F28D1/0452 takes precedence
• CPC Class Codes: F28D 1/0476 the conduits having a non-circular cross-section
• CPC Class Codes: F28D 1/05391 with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
• CPC Class Codes: F28D 2001/0266 Particular core assemblies, e.g. having different orientations or having different geometric features
• CPC Class Codes: F28D 2001/0286 Radiating plates; Decorative panels
• CPC Class Codes: F28D 2021/0068 for refrigerant cycles
• CPC Class Codes: F28D 2021/0085 Evaporators
• CPC Class Codes: F28F 1/02 Tubular elements of cross-section which is non-circular F28F1/08, F28F1/10 take precedence
• CPC Class Codes: F28F 1/025 with variable shape, e.g. with modified tube ends, with different geometrical features F28F1/06, F28F1/08, F28F9/16, F28F9/18 take precedence
• CPC Class Codes: F28F 9/0212 the partitions being separate elements attached to header boxes
• CPC Class Codes: F28F 9/0243 Header boxes having a circular cross-section
• CPC Class Codes: F28F 9/0273 with multiple holes
• CPC Class Codes: F28F 9/182 the heat-exchange conduits having ends with a particular shape, e.g. deformed; the heat-exchange conduits or end plates having supplementary joining means, e.g. abutments
• CPC Class Codes: F28F 9/262 for radiators F28D1/0408 takes precedence

Abstract

A heat exchanger can include a plurality of flat tubes each having a heat exchange channel for a flow of a heat exchange medium, and a first collector pipe and a second collector pipe connected to distal sections of the plurality of flat tubes and disposed side by side. Chambers of the first collector pipe and the second collector pipe can be in communication with the heat exchange channels of the flat tubes. The flat tube includes a main body section, a distal section, and a torsion section connected therebetween. The main body section and the distal sections can be straight sections. The first collector pipe and the second collector pipe can be provided with mounting holes for the distal section being inserted into. A length direction of the mounting hole can be inclined to the axis of the first collector pipe or the axis of the second collector pipe.

Claims

1. A heat exchanger, comprising:

a collector pipe comprising a mounting hole; and

a flat tube comprising a main body section that is substantially flat, a first distal section, and a second distal section, the first distal section and the second distal section being twisted towards a same side with respect to the main body section, and at least a portion of the first distal section and at least a portion of the second distal section being inserted into and connected to the mounting hole;

wherein an angle located between a plane defined by a length direction and a width direction of the main body section and a plane defined by a length direction and a width direction of the first distal section or the second distal section is α

, where α

≠

90°

; and

wherein the length direction of the main body section is substantially perpendicular to an axis of the collector pipe, and an angle defined between a length direction of the mounting hole and the axis of the collector pipe is β

, where β

≠

90°

.

2. The heat exchanger according to claim 1, wherein the angle α

between the plane defined by the length direction and the width direction of the main body section and the plane defined by the length direction and the width direction of the distal section satisfies 15°

≤

α

<

40°

, and the angle β

between the length direction of the mounting hole and the axis of the collector pipe satisfies 50°

<

β

≤

75°

.

3. The heat exchanger according to claim 2, wherein the planes defined by the length directions and the widths direction of the two distal sections of the flat tube are substantially parallel with each other, respectively.

4. The heat exchanger according to claim 1, wherein the plane defined by the length direction and the width direction of the main body section is substantially perpendicular to the axis of the collector pipe.

5. The heat exchanger according to claim 1, further comprising a partition plate, wherein the collector pipe is provided with a partition plate groove, and the partition plate is inserted into and connected to the partition plate groove to divide the collector pipe into at least two chambers that are separated from each other.

6. The heat exchanger according to claim 5, wherein the collector pipe comprises a first collector pipe and a second collector pipe, the first collector pipe is provided with the partition plate groove, the partition plate is inserted into and connected to the partition plate groove to divide the first collector pipe into a first chamber and a second chamber that are separated from each other;

a plurality of flat tubes are stacked to form a core portion for heat exchange, the core portion comprises a first core portion formed by a part of the plurality of flat tubes, and a second core portion formed by another part of the plurality of flat tubes; and

each of flat tubes of the first core portion has one end inserted into and connected to the first collector pipe to communicate heat exchange channels of the flat tubes with the first chamber, and each of flat tubes of the second core portion have one end inserted into and connected to the first collector pipe to communicate heat exchange channels of the flat tubes with the second chamber.

7. The heat exchanger according to claim 6, wherein the core portion further comprises a third core portion formed by a third part of the plurality of flat tubes, and the partition plate divides the second collector pipe into a third chamber and a fourth chamber that are separated from each other;

and

each of the flat tubes of the first core portion has another end inserted into and connected to the second collector pipe to communicate heat exchange channels of the flat tubes with the third chamber, each of the flat tubes of the second core portion has another end inserted into and connected to the second collector pipe to communicate heat exchange channels of the flat tubes with the third chamber, and heat exchange channels of flat tubes of the third core portion communicate the second chamber with the fourth chamber.

8. The heat exchanger according to claim 5, wherein α

length direction of the partition plate groove is not perpendicular to an axis of the first collector pipe or an axis of the second collector pipe.

9. The heat exchanger according to claim 6, wherein α

length direction of the mounting hole in the first collector pipe is substantially parallel with the partition plate groove;

or

a length direction of a mounting hole in the second collector pipe is substantially parallel with a length direction of the partition plate groove.

10. The heat exchanger according to claim 5, wherein the partition plate comprises a first surface and a second surface opposite to each other and with relatively large areas, and a first side surface and a second side surface connected between the first surface and the second surface;

and

the first surface and the second surface are parallel with each other, a perpendicular line of the first side surface of the partition plate is not perpendicular to a perpendicular line of the first surface and the second surface, and a perpendicular line of the second side surface of the partition plate is not perpendicular to the perpendicular line of the first surface and the second surface.

11. The heat exchanger according to claim 6, further comprising an inlet member and an outlet member;

wherein

the inlet member comprises a tube portion and a distribution portion connected thereto, the tube portion extends from a first end of the first collector pipe to the second chamber, the distribution portion is adjacent to the second chamber, the distribution portion is internally provided with a flow path extending along a length direction of the first collector pipe and a plurality of distribution holes arranged along a length direction of the flow path, the plurality of distribution holes communicate the flow path with the second chamber, and the tube portion is in communication with the flow path; and

the outlet member is disposed at the first end of the first collector pipe and in communication with the first chamber of the first collector pipe.

12. The heat exchanger according to claim 7, wherein the heat exchanger further comprises a distribution tube, each of the first collector pipe and the second collector pipe has a first end and a second end that are opposite to each other along a length direction, the third chamber is closer to the first end of the second collector pipe than the fourth chamber, and the distribution tube extends from the first end of the second collector pipe through the third chamber to communicate with the fourth chamber;

and

the partition plate inserted into the partition plate groove of the second collector pipe is a perforated partition plate.

13. The heat exchanger according to claim 1, wherein the heat exchanger further comprises a connecting member, and a third collector pipe and a fourth collector pipe arranged side by side, an axis of the third collector pipe is substantially parallel with an axis of the fourth collector pipe, and the third collector pipe and the fourth collector pipe are spaced apart from the first collector pipe and the second collector pipe by a predetermined distance;

and

the connecting member is disposed in a gap between the first collector pipe and the second collector pipe arranged side by side or between the third collector pipe and the fourth collector pipe arranged side by side, and the two collector pipes arranged side by side are in communication with each other through the connecting member.

14. The heat exchanger according to claim 6, wherein each of the third collector pipe and the fourth collector pipe has a plurality of mounting holes to be inserted by the distal sections, respectively;

the core portion further comprises a fourth core portion formed by a part of the plurality of flat tubes, and a fifth core portion formed by another part of the plurality of flat tubes;

the partition plate divides the first collector pipe into a first chamber and a second chamber separated from each other, the partition plate divides the second collector pipe into a third chamber and a fourth chamber separated from each other;

a part of flat tubes of the fourth core portion communicates the first chamber with an inner chamber of the third collector pipe, and another part of the flat tubes of the fourth core portion communicates the second chamber with the inner chamber of the third collector pipe;

a part of flat tubes of the fifth core portion communicates the third chamber with an inner chamber of the fourth collector pipe, and another part of the flat tubes of the fifth core portion communicates the fourth chamber with the inner chamber of the fourth collector pipe; and

the connecting member communicates the second chamber with the fourth chamber.

15. The heat exchanger according to claim 6, wherein the connecting member is adjacent to the second chamber and the fourth chamber, the connecting member is provided with a plurality of through-holes arranged along a length direction of the connecting member, and the plurality of through-holes communicates the second chamber with the fourth chamber.

16. The heat exchanger according to claim 6, wherein the connecting member is disposed between the first collector pipe and the second collector pipe, both of the first collector pipe and the second collector pipe are cylindrical shapes, and surfaces of the connecting member to be attached to the first collector pipe and the second collector pipe are arcuate concave surfaces.

17. The heat exchanger according to claim 13, further comprising a connecting member disposed between the third collector pipe and the fourth collector pipe.

18. The heat exchanger according to claim 17, wherein both of the third collector pipe and the fourth collector pipe are cylindrical shapes, and surfaces of the connecting member to be attached to the third collector pipe and the fourth collector pipe are arcuate concave surfaces.

19. A heat exchanger, comprising:

a collector pipe defining a mounting hole and a partition plate groove;

a flat tube comprising a main body section, a first distal section, and a second distal section, at least one of the first distal section and the second distal section being twisted with respect to the main body section, and at least one of the first distal section and the second distal section being inserted into and connected to the mounting hole; and

a partition plate inserted into and connected to the partition plate groove to divide the collector pipe into at least two chambers that are separated from each other;

wherein the partition plate groove is not perpendicular to an axis of the collector pipe, the mounting hole is not perpendicular to an axis of the collector pipe, and the partition plate is parallel with at least one of the first distal section and the second distal section.

20. The heat exchanger according to claim 19 wherein an angle α

between a plane defined by a length direction and a width direction of the main body section and a plane defined by a length direction and a width direction of the distal section satisfies 15°

≤

α

<

40°

, and an angle β

between a length direction of the mounting hole and an axis of the collector pipe satisfies 50°

<

β

≤

75°

.