Storage evaporator with corrugated plate design facilitating the freezing of the PCM

Patent metadata

Field	Value
Publication number	US-10131198-B2
Application number	US-201515512384-A
Country	US
Kind code	B2
Filing date	Sep 16, 2015
Priority date	Sep 17, 2014
Publication date	Nov 20, 2018
Grant date	Nov 20, 2018

Abstract

The evaporator ( 12 ) for a motor vehicle air conditioning device comprises at least one refrigerant tube ( 22, 22 A) intended to allow the circulation of a refrigerant fluid and at least one storage member ( 10 ) comprising at least one housing ( 16, 20 ) comprising a material referred to as a thermal storage material ( 21 ) intended to store frigories and release them to a ventilation fluid intended to circulate towards an interior of the vehicle. The housing ( 16 ) has a substantially hemispherical shape.

First claim

What is claimed:

1. An evaporator for a motor vehicle air conditioning device comprising:
at least one refrigerant tube configured to allow circulation of a refrigerant fluid; and
at least one storage member comprising at least one housing comprising a thermal storage material for storing and releasing frigories to a ventilation fluid configured to circulate towards an interior of the vehicle,
wherein the housing has a substantially hemispherical shape, and
wherein the at least one storage member has at least two housings, the at least two housings being connected to one another in fluid communication, wherein the at least two housings are connected to one another by a connecting duct, and wherein the ratio between the radius of a housing and a dimension of the connecting duct connecting this housing to the other housing is comprised between 0.5 and 1.

2. The evaporator as claimed in claim 1 , in which the ventilation fluid is air.

3. The evaporator as claimed in claim 1 , wherein the thermal storage material comprises a phase change material.

4. The evaporator as claimed in claim 1 , wherein at least one wall of the refrigerant tube forms a wall of the housing.

5. The evaporator as claimed in claim 1 , wherein each housing has a substantially hemispherical shape.

6. The evaporator as claimed in claim 1 , wherein a radius of one of the at least two housings is different from that of another of the at least two housings.

7. The evaporator as claimed in claim 1 , wherein the storage member comprises a plurality of housings distributed at the nodes of a regular lattice.

8. An air-conditioning device for a motor vehicle, comprising an evaporator as claimed in claim 1 .

Assignees

• Valeo Systemes Thermiques

Inventors

• Robillon Lionel
• Bellenfant Aurélie
• Tissot Julien
• Moreau Sylvain

Classifications

• F28F3/044 Primary

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

• F28D2021/0085

  Evaporators · CPC title

• F28D1/0341

  with U-flow or serpentine-flow inside the conduits · CPC title

• F28D2020/0008

  the heat storage material being enclosed in plate-like or laminated elements, e.g. in plates having internal compartments · CPC title

• F28D20/02

  using latent heat · CPC title