IP Library Granted Patent US 12,442,570
Granted Patent B1
US 12,442,570 · App. 18/947,559 · Granted Oct 14, 2025

Closed-loop climate control system with thermoelectric cooler

Inventors: Guy Avidan (Tel Aviv, IL); Itai Shamir (Binyamina, IL)
Assignee: AVIDAN'S CANADA INC.
F25B21/02F25B41/20
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Quick Facts
Patent No.
US 12,442,570
App. No.
18/947,559
Granted
Oct 14, 2025
Kind
B1
Abstract

A closed-loop climate system including a water tank; cooling pads positioned above the water tank, a thermoelectric unit (TEU) connectable to a power supply, and configured to cool/heat water received from the water tank, a sprinkler tube positioned above the cooling pads and configured to sprinkle the water heated by the TEU onto the cooling pads.

Claims (23)

1. A closed-loop climate system comprising:

an evaporative air conditioning component comprising:

a water tank;

one or more cooling pads positioned above the water tank, each of the cooling pads being configured to absorb liquid and to allow air to pass transversely therethrough;

a sprinkler tube positioned along and above the one or more cooling pads, the sprinkler tube comprising a plurality of sprinkler holes through which water from the water tank can be sprinkled on the one or more cooling pads;

a hydraulic system configured to draw water from the water tank to the sprinkler tube; and

one or more fans configured to draw-in room air and to expel/distribute air cooled via the cooling pads;

a thermoelectric unit (TEU) connectable to a power supply, and configured to cool water flowing therethrough and to heat water flowing therethrough during a heating mode operation of the climate system, wherein the TEU is positioned between, and fluidly connected to the water tank and the sprinkler tube, such that water draw from the water tank is cooled by the TEU prior to reaching the sprinkler tube, wherein, the climate system is configured to be switched from a cooling mode to the heating mode by changing current flow through the TEU; and

a temperature microcontroller configured to control operation of the TEU, thereby controlling the temperature of the expelled/distributed air;

a radiator; and

a valve, wherein during a cooling mode of the system, the valve is configured to control water flow from the water tank, via the TEU to the sprinkler tube, and wherein during a heating mode of the system, the valve is configured to draw water from the radiator, via the TEU and back to the radiator.

2. The system of claim 1 , wherein the TEU is a thermoelectric generator (TEG) and wherein the power generated by the TEG is powering at least a portion of the energy required by the system.

3. The system of claim 1 , wherein the temperature microcontroller is controllable via an application running on a remote computing device.

4. The system of claim 1 , wherein the power supply is a DC power supply.

5. The system of claim 1 , further comprising one or more sensors configured to provide feedback to the temperature microcontroller.

6. The system of claim 5 , wherein the one or more sensors comprises a temperature sensor and wherein the temperature microcontroller is configured to maintain a set/selected temperature based on the feedback from the temperature sensor.

7. The system of claim 5 , wherein the one or more sensors comprises a water level indicator configured to determine a water level in the water tank.

8. The system of claim 5 , wherein the one or more sensors comprises a humidity sensor and wherein the temperature microcontroller is configured to maintain a set/selected humidity, based on the feedback from the humidity sensor.

9. The system of claim 1 , wherein the cooling pads and the water tank are mutually positioned such that excess water drips back into the water tank.

10. The system of claim 1 , wherein the cooling pads are honeycomb cooling pads.

11. The system of claim 1 , being configured to selectively operate in one of a cooling mode and a heating mode wherein the one or more fans comprise a one or more cooling mode fans positioned in proximity to the one or more cooling pads and one or more heating mode fans positioned in proximity to a radiator.

12. The system of claim 11 , wherein the one or more cooling mode fans and the one or more heating mode fans each comprise an air intake.

13. The system of claim 1 , being devoid of an external unit.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 18, 2024
From: AVIDAN, GUY; SHAMIR, ITAI
To: AVIDAN'S CANADA INC.
Reel/Frame 069294/0989 →
Continuity (1)
Provisional Application 63664776 · Jun 27, 2024
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