System for cooling a vehicle compartment

Patent metadata

Field	Value
Publication number	US-2016257181-A1
Application number	US-201514636493-A
Country	US
Kind code	A1
Filing date	Mar 3, 2015
Priority date	Mar 3, 2015
Publication date	Sep 8, 2016
Grant date	—

Abstract

A system for cooling a vehicle compartment using a twin cell thermal battery and waste heat. Cool air from the evaporators of a twin cell thermal battery system is used to chill a compartment, such as an icebox in a trunk or a cabin of a vehicle. The energy needed to create the cooling effect for the cool compartment comes directly from the waste heat of vehicle exhaust gas. The system provides for the air conditioning and charging mode to work simultaneously because of a twin cell battery configuration. A thermoelectric generator (TEG) is also provided in addition to the twin cell battery thereby making the system self-powered. The system uses energy that would otherwise be lost to the environment to provide a cooling source within the vehicle.

First claim

What is claimed is:

1 . A system for cooling a vehicle compartment utilizing waste heat from a supply of exhaust gas of a vehicle, the system comprising:
a first battery portion having a first condenser and a first evaporator, the first battery portion including a first adsorbent, the first battery portion in communication with the supply of exhaust gas through a first heat exchanger, the first adsorbent adapted to collect waste heat from the supply of exhaust gas in a charging mode, the first evaporator in communication with a supply of air, the first evaporator adapted to cool the supply of air in a cooling mode, the first battery portion switchable between the charging mode and the cooling mode; a second battery portion having a second condenser and a second evaporator, the second battery portion including a second adsorbent, the second battery portion in communication with the supply of exhaust gas through a second heat exchanger, the second adsorbent adapted to collect waste heat from the supply of exhaust gas in a charging mode, the second evaporator in communication with a supply of air, the second evaporator adapted to cool the supply of air in a cooling mode, the second battery portion switchable between the charging mode and the cooling mode; the supply of air transported to a compartment by means of a conduit after the supply of air has been cooled; the first battery portion and the second battery portion in communication with each other; the second battery portion in the other of the charging mode or the cooling mode as compared to the first battery portion at any given time thereby providing for a continuous air cooling supply.

2 . The system for cooling a vehicle compartment of claim 1 wherein a thermoelectric generator is provided in communication with both the first battery portion and the second battery portion thereby enabling the system to be self-powered.

3 . The system for cooling a vehicle compartment of claim 2 wherein the thermoelectric generator is adapted to supply electric power to a pump, the pump adapted to move engine coolant in fluid communication with the first adsorbent and the second adsorbent.

4 . The system for cooling a vehicle compartment of claim 2 wherein the thermoelectric generator adapted to supply electric power to a fan, the fan in fluid communication with both the first evaporator and the second evaporator and adapted to move cool air to the vehicle compartment.

5 . The system for cooling a vehicle compartment of claim 3 wherein the thermoelectric generator adapted to supply electric power to an expansion valve, the expansion valve positioned between the evaporator and the pump.

6 . The system for cooling a vehicle compartment of claim 1 wherein the vehicle compartment is a vehicle cabin.

7 . The system for cooling a vehicle compartment of claim 1 wherein the vehicle compartment is an ice box.

8 . The system for cooling a vehicle compartment of claim 1 wherein the vehicle compartment is a compartment adapted for transporting at least one of blood, organs or other living tissue.

9 . The system for cooling a vehicle compartment of claim 1 wherein if two heat exchanges are used, the first adsorbent is positioned between the first condenser and the first evaporator.

10 . The system for cooling a vehicle compartment of claim 1 wherein if two heat exchanges are used, the second adsorbent is positioned between the second condenser and the second evaporator.

11 . The system for cooling a vehicle compartment of claim 1 wherein both the first battery portion and the second battery portions are in fluid communication with a shared reservoir.

12 . The system for cooling a vehicle compartment of claim 1 wherein the condenser and the evaporator are the same component which works as a condenser in the charging mode and functions as an evaporator in the cooling mode.

13 . The system for cooling a vehicle compartment of claim 1 wherein the system includes 3 or more battery portions.

14 . A system for cooling a vehicle compartment utilizing waste heat from a supply of exhaust gas of a vehicle, the system comprising:
a first battery portion having a first adsorbent, the first adsorbent directly connected to a heat exchanger, the adsorbent in fluid communication with the supply of exhaust gas, the first adsorbent adapted to collect waste heat from the supply of exhaust gas in a charging mode, the first battery portion adapted to cool a supply of air in a cooling mode, the first battery portion switchable between the charging mode and the cooling mode; a second battery portion including a second adsorbent, the second adsorbent directly connected to a heat exchanger, the second battery portion in communication with the supply of exhaust gas, the second adsorbent adapted to collect waste heat from the supply of exhaust gas in a charging mode and further adapted to cool a supply of air in a cooling mode, the second battery portion switchable between the charging mode and the cooling mode; the first battery portion and the second battery portion are connected to each other; the second battery portion in the other of the charging mode or the cooling mode as compared to the first battery portion at any given time thereby providing for a continuous air cooling supply.

15 . The system for cooling a vehicle compartment of claim 14 wherein a thermoelectric generator is provided in communication with both the first battery portion and the second battery portion thereby enabling the system to be self-powered.

16 . The system for cooling a vehicle compartment of claim 15 wherein the thermoelectric generator adapted to supply electric power to a fan, the fan in communication with both a first evaporator and a second evaporator and adapted to move cool air to the vehicle compartment.

17 . The system for cooling a vehicle compartment of claim 15 wherein the thermoelectric generator adapted to supply electric power an expansion valve, the expansion valve positioned between the evaporator and a pump.

18 . The system for cooling a vehicle compartment of claim 12 wherein the vehicle compartment is a compartment adapted for transporting at least one of blood, organs or other living tissue.

19 . The system for cooling a vehicle compartment of claim 13 wherein the heat exchangers having at least a condenser and/or an evaporator.

20 . The system for cooling a vehicle compartment of claim 1 wherein the system includes 3 or more battery portions.

Assignees

• Toyota Motor Eng & Mfg North America Inc

Inventors

• Zhou Feng
• Dede Ercan Mehmet

Classifications

• B60H1/3201 Primary

  using absorption or adsorption · CPC title

• B60H1/32014

  using adsorption, e.g. using Zeolite and water · CPC title

• B60H1/18

  the air being heated from the plant exhaust gases {(B60H1/025 takes precedence)} · CPC title

• B60H1/00392

  for electric vehicles having only electric drive means · CPC title