Compact heat exchanger unit for electric vehicle particularly and air conditioning module

Patent metadata

Field	Value
Publication number	US-12304272-B2
Application number	US-202218063873-A
Country	US
Kind code	B2
Filing date	Dec 9, 2022
Priority date	Jul 9, 2018
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

A compact heat exchanger unit within an air conditioning apparatus for a vehicle, and a condenser region for the condensation of refrigerant is formed as a heat exchanging surface, and a high-pressure-refrigerant collector region as a refrigerant collector is formed in the integrated form as a plate packet of a heat exchanger within a plate heat exchanger.

First claim

What is claimed is:

1. An air conditioning module for an electric vehicle particularly having a refrigerant circulation system, the refrigerant circulation system comprising:
a compressor;
an expansion engine;
two or more heat exchangers as an evaporator and a condenser;
a first connection part for a first coolant circulation system for supplying coolant to an air conditioning unit; and
a second connection part for a second coolant circulation system for cooling the refrigerant to the air conditioning module, wherein the two or more heat exchangers are integrated within a compact heat exchanger unit as heat exchanger regions, and the compact heat exchanger unit is formed as an integrated plate heat exchanger, wherein the air conditioning unit receives the coolant for conditioning an air of an interior of the vehicle through the first coolant circulation system from an evaporator region of the heat exchanger regions of the compact heat exchanger unit.

2. The air conditioning module of claim 1 , wherein the second coolant circulation system is connected to supply heat to the air conditioning unit.

3. The air conditioning module of claim 1 , wherein the compressor is an electric compressor, and the air conditioning module has an electric connection part.

4. The air conditioning module of claim 1 , wherein R134a, R152a, R1234yf, R1234ze, R744, propane, propylene, or ammonia is used within the refrigerant circulation system as the refrigerant.

5. The air conditioning module of claim 1 , wherein the second coolant circulation system has a low-temperature heat exchanger.

6. The air conditioning module of claim 5 , wherein the second coolant circulation system connects a condenser region of the heat exchanger regions to the low-temperature heat exchanger.

7. The air conditioning module of claim 1 , wherein the first coolant circulation system is connected to a battery cooling circulation system in series or in parallel next to the air conditioning unit.

8. The air conditioning module of claim 7 , wherein the battery cooling circulation system is connected in parallel with the evaporator region of the compact heat exchanger unit inside the refrigerant circulation system.

9. The air conditioning module of claim 1 , wherein a dryer is implemented as an element to be separately completed and assembled, on a refrigerant outlet of the compact heat exchanger unit.

10. The air conditioning module of claim 1 , wherein a condenser region of the heat exchanger regions for the condensation of the refrigerant is formed as a heat exchanging surface, and a high-pressure-refrigerant collector region as a refrigerant collector is formed in integrated form as plate packets within the plate heat exchanger.

11. The air conditioning module of claim 10 , wherein a separate excess cooling region for excess cooling of the refrigerant is connected after the condenser region, and integrated within the compact heat exchanger unit as the plate packet.

12. The air conditioning module of claim 11 , wherein the condenser region, the excess cooling region, and the high-pressure-refrigerant collector region are arranged in parallel with each other as the plate packets of the plate heat exchanger, the refrigerant flows through the condenser region and then is guided and collected into the high-pressure-refrigerant collector region, and then guided to the excess cooling region to be excessively cooled.

13. The air conditioning module of claim 10 , wherein the evaporator region of the heat exchanger regions, an internal heat exchanger region, and the condenser region are formed as the plate packets, and integrated within the integrated plate heat exchanger.

14. The air conditioning module of claim 13 , wherein the expansion engine is arranged as an expansion valve between the internal heat exchanger region and the evaporator region.

15. The air conditioning module of claim 13 , wherein the evaporator region, the internal heat exchanger region, the condenser region and the high-pressure-refrigerant collector region of the compact heat exchanger unit are thermally insulated from each other, and insulation plates are arranged between the evaporator region, the internal heat exchanger region, the condenser region, and the high-pressure-refrigerant collector region.

16. The air conditioning module of claim 13 , wherein delivery channels are arranged between the evaporator region, the internal heat exchanger region, the condenser region, and the high-pressure-refrigerant collector region of the compact heat exchanger unit as the plate packets of the plate heat exchanger for guiding the refrigerant from a lower surface of the compact heat exchanger unit to an upper surface thereof.

17. The air conditioning module of claim 10 , wherein a plate of the plate heat exchanger has a rib, the rib is formed by an offset-design, a dimple-design, or a chevron-design, and the rib formed by the offset-design is implemented between two plates as an insertion plate.

18. The air conditioning module of claim 17 , wherein the plate of the plate heat exchanger within the high-pressure-refrigerant collector region has the rib as the insertion plate formed by the offset-design, the insertion plate has a recess for enlarging a volume of the high-pressure-refrigerant collector region, the recess has a grain structure, a fir structure, or a long hole structure, and the insertion plate is connected to the plate through a plurality of contact points.

19. The air conditioning module of claim 17 , wherein the plate of the plate heat exchanger within the internal heat exchanger region has the rib formed by the dimple-design on a low pressure side, and has the rib as an insertion part formed by the offset-design on the high pressure side.

20. The air conditioning module of claim 10 , wherein plates within the condenser region and an excess cooling region have a rib as an insertion part formed by an offset-design and/or the rib formed by a chevron-design.

21. An air conditioning module for an electric vehicle particularly having a refrigerant circulation system, the refrigerant circulation system comprising:
a compressor;
an expansion engine;
two or more heat exchangers as an evaporator and a condenser;
a first connection part for a first coolant circulation system for supplying coolant to an air conditioning unit; and
a second connection part for a second coolant circulation system for cooling the refrigerant to the air conditioning module, wherein the two or more heat exchangers are integrated within a compact heat exchanger unit as heat exchanger regions, and the compact heat exchanger unit is formed as an integrated plate heat exchanger, wherein a condenser region of the heat exchanger regions for the condensation of the refrigerant is formed as a heat exchanging surface, and a high-pressure-refrigerant collector region as a refrigerant collector is formed in integrated form as plate packets within the plate heat exchanger.

Assignees

• Hanon Systems

Inventors

• Heyl Peter
• Cech Radim
• Slavik Radek

Classifications

• F28F2275/04

  by brazing · CPC title

• F28F3/048

  in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels · CPC title

• F28F3/046

  the deformations being linear, e.g. corrugations · CPC title

• F28F3/044

  the deformations being pontual, e.g. dimples · CPC title

• F28D2021/008

  for vehicles · CPC title