Vehicle climate control system with filtered condensate misting

Patent metadata

Field	Value
Publication number	US-11370272-B2
Application number	US-202016734140-A
Country	US
Kind code	B2
Filing date	Jan 3, 2020
Priority date	Jan 3, 2020
Publication date	Jun 28, 2022
Grant date	Jun 28, 2022

Abstract

A vehicle climate control system includes a heating, ventilation, and air conditioning (HVAC) system where condensate from the system is conveyed to a misting device disposed at an air-conditioned outlet in the cabin of the vehicle. The misting device can be arranged at the exit of the air-conditioned outlet such that conditioned air is conveyed by the HVAC ducting and mixes with the mist generated by the misting device at the air-conditioned outlet. The mist may be scented using an injection device that pumps a fragrant fluid into the misting device along with the condensate. Prior to conveying the condensate to the misting device, the condensate may be pumped through bacteria and sediment filter media providing a clean supply of condensate to the misting device. Positioning the misting device at the air-conditioned outlet helps prevent mold or debris from being trapped in the HVAC system or ducting.

First claim

What is claimed is:

1. A climate control system, comprising:
a heating, ventilation, and air conditioning (HVAC) system, comprising:
an evaporator;
a condensate reservoir that holds condensed water collected from the evaporator; and
an HVAC outlet that outputs conditioned air of the HVAC system;

an air duct comprising an air outlet disposed therein at a climate-controlled space, the air duct running from the HVAC outlet to the climate-controlled space, wherein the air duct conveys the conditioned air to the climate-controlled space via the air outlet disposed at the climate-controlled space;
an ultrasonic vibratory device comprising a vibratory element arranged adjacent to the air outlet;
a condensate line running from the HVAC system to the ultrasonic vibratory device, wherein the condensate line conveys the condensed water received from the HVAC system to the vibratory element of the ultrasonic vibratory device and, when actuated, the vibratory element converts the condensed water into a mist that is expelled adjacent to the air outlet and into the climate-controlled space;
a fluid control valve disposed along a length of the condensate line adjacent to the ultrasonic vibratory device, the fluid control valve interconnected to an input of the ultrasonic vibratory device, wherein the fluid control valve selectively controls a flow of the condensed water into the input of the ultrasonic vibratory device; and
a fragrance injection device interconnected to the fluid control valve, and wherein the fluid control valve selectively controls a flow of a fragrant fluid received from the fragrance injection device into the input of the ultrasonic vibratory device.

2. The climate control system of claim 1 , wherein the condensate line is a separate line from the air duct and at least a portion of the condensate line is disposed in the air duct adjacent to the air outlet.

3. The climate control system of claim 1 , further comprising:
a pump interconnected to the condensate line between the condensate reservoir and the ultrasonic vibratory device, wherein the pump pressurizes the condensed water conveyed via the condensate line.

4. The climate control system of claim 3 , further comprising:
a filter interconnected to the condensate line between the pump and the ultrasonic vibratory device.

5. The climate control system of claim 4 , wherein the filter comprises a bacteria and a particulate filtration medium, and wherein the condensed water is conveyed through the filter prior to reaching the ultrasonic vibratory device.

6. The climate control system of claim 1 , wherein the mist comprising condensed water and the fragrant fluid received from the fragrance injection device mixes with the conditioned air as the mist is expelled adjacent to the air outlet into the climate-controlled space.

7. The climate control system of claim 6 , wherein the vibratory element is disposed inside a portion of the air duct and the mist is expelled through the air outlet into the climate-controlled space.

8. The climate control system of claim 6 , wherein the vibratory element is disposed outside a portion of the air duct and the mist is expelled through a misting outlet into the climate-controlled space.

9. A climate control method, comprising:
receiving, via a level sensor, a condensate level of a heating, ventilation, and air conditioning (HVAC) condensate reservoir;
receiving, via a temperature sensor disposed in a climate-controlled space, a temperature inside an area of the climate-controlled space;
determining, via a processor, that condensate is available for generating mist inside the climate-controlled space; and
activating, via the processor and in response to determining that the condensate is available and based on the temperature, an ultrasonic vibratory device comprising a vibratory element arranged adjacent to an air conditioning outlet at the climate-controlled space, wherein the vibratory element converts condensed water received from the HVAC condensate reservoir via a condensate line into a mist that is expelled adjacent to the air conditioning outlet and into the climate-controlled space.

10. The method of claim 9 , wherein prior to activating the ultrasonic vibratory device, the method further comprises:
receiving, via a humidity sensor disposed in the climate-controlled space, a humidity level measurement inside the area of the climate-controlled space, and wherein activating the ultrasonic vibratory device is based on the humidity level measurement.

11. The method of claim 9 , further comprising:
pressurizing, via a pump interconnected to the condensate line between the HVAC condensate reservoir and the ultrasonic vibratory device, the condensed water along the condensate line in a direction toward the ultrasonic vibratory device.

12. The method of claim 11 , further comprising:
forcing, via the pump, the condensed water through a filter interconnected to the condensate line between the pump and the ultrasonic vibratory device, the filter comprising a bacteria and a particulate filtration medium.

13. The method of claim 12 , further comprising:
controlling, via the processor and a fluid control valve interconnected to the condensate line and the ultrasonic vibratory device, a flow of the condensed water conveyed to the vibratory element; and
controlling, via the processor and the fluid control valve interconnected to a fragrance injection device, a flow of a fragrant fluid received from the fragrance injection device conveyed to the vibratory element.

14. A vehicle, comprising:
a climate-controlled cabin space;
a climate control system, comprising:
a heating, ventilation, and air conditioning (HVAC) system, comprising:
an evaporator;
a condensate reservoir that holds condensed water collected from the evaporator; and
an HVAC outlet that outputs conditioned air of the HVAC system;

an air duct comprising an air outlet disposed therein at the climate-controlled cabin space, the air duct running from the HVAC outlet to the climate-controlled cabin space, wherein the air duct conveys the conditioned air to the climate-controlled cabin space via the air outlet disposed at the climate-controlled cabin space;
an ultrasonic vibratory device comprising a vibratory element arranged adjacent to the air outlet;
a condensate line running from the HVAC system to the ultrasonic vibratory device, wherein the condensate line conveys the condensed water received from the HVAC system to the vibratory element of the ultrasonic vibratory device and, when actuated, the vibratory element converts the condensed water into a mist that is expelled adjacent to the air outlet and into the climate-controlled cabin space;
a fluid control valve disposed along a length of the condensate line adjacent to the ultrasonic vibratory device, the fluid control valve interconnected to an input of the ultrasonic vibratory device; and
a fragrance injection device interconnected to the fluid control valve, and wherein the fluid control valve selectively controls a flow of a fragrant fluid received from the fragrance injection device into the input of the ultrasonic vibratory device.

15. The vehicle of claim 14 , wherein the condensate line is a separate line from the air duct and at least a portion of the condensate line is disposed in the air duct adjacent to the air outlet.

16. The vehicle of claim 14 , wherein the mist comprising condensed water and the fragrant fluid received from the fragrance injection device mixes with the conditioned air as the mist is expelled adjacent to the air outlet into the clim

Assignees

• Nio Usa Inc
• Nio Technology Anhui Co Ltd

Inventors

• Abrego Armando Mendez
• Prashad Dewashish Kanta
• Gupta Omnaath Guptha Harihara
• Smith Joshua

Classifications

• B60H1/32331 Primary

  comprising means for the use of condensed liquid, e.g. for humidification or for improving condenser performance · CPC title

• B60H3/0035

  characterised by the control methods for adding the substance · CPC title

• B05B7/0075

  Nozzle arrangements in gas streams · CPC title

• B60H2003/026

  the devices being located in the passenger compartment · CPC title

• B60H3/022

  for only humidifying the air · CPC title