IP Library Granted Patent US 12674616
Granted Patent B2
US 12674616 · App. 18/394,559 · Granted Jul 7, 2026

Refrigerated trailers

Inventors: Young Jae Park (Chula Vista, CA); Alvaro Frausto (San Diego, CA); Martin Martinez-Contreras (San Diego, CA); Enrique Chavez (Chula Vista, CA); Joseph Enright (El Cajon, CA); Victor Vargas, Jr. (La Mesa, CA); Frederic Graham (Spring Valley, CA)
Assignee: HYUNDAI TRANSLEAD
F25D23/065F25D11/003F25D2201/126F25D2201/14
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Quick Facts
Patent No.
US 12674616
App. No.
18/394,559
Granted
Jul 7, 2026
Kind
B2
Abstract

A refrigerated trailer having thermal insulation, including: a plurality of side walls, wherein each side wall includes: a first plurality of vacuum insulated panels (VIPs), each VIP of the first plurality of VIPs made of thermal resistant and porous material; and a roof including: a second plurality of VIPs, each VIP of the second plurality of VIPs made of thermal resistant and porous material; a second plurality of structural posts, each structural post of the second plurality of structural posts made of composite material, the second plurality of structural posts arranged in a horizontal bow configuration to hold the second plurality of VIPs in place to form a roof.

Claims (45)

1 . A refrigerated trailer having thermal insulation, the refrigerated trailer comprising:

a plurality of side walls, wherein each side wall includes:

a first plurality of vacuum insulated panels (VIPs), each VIP of the first plurality of VIPs made of thermal resistant and porous material; and

a roof including:

a second plurality of VIPs, each VIP of the second plurality of VIPs made of thermal resistant and porous material;

a plurality of structural posts, each structural post of the plurality of structural posts made of composite material, and

the plurality of structural posts arranged in a horizontal bow configuration to hold the second plurality of VIPs in place to form a roof.

2 . The refrigerated trailer of claim 1 , further comprising a second plurality of structural posts, each structural post of the second plurality of structural posts made of composite material.

3 . The refrigerated trailer of claim 2 , wherein the second plurality of structural posts is arranged in a vertical configuration to hold the first plurality of VIPs in place to form a wall.

4 . The refrigerated trailer of claim 2 , wherein each structural post of the plurality of structural posts and the second plurality of structural posts is a square shape.

5 . The refrigerated trailer of claim 1 , further comprising a first plurality of polyurethane (PU) foams disposed within each side wall, each of the first plurality of PU foams configured to encapsulate each VIP of the first plurality of VIPs.

6 . The refrigerated trailer of claim 5 , further comprising a second plurality of PU foams disposed within the roof, each of the second plurality of PU foams configured to encapsulate each VIP of the second plurality of VIPs.

7 . The refrigerated trailer of claim 1 , further comprising:

an outside skin for each side wall, wherein the outside skin is made of an aluminum sheet; and

an inside skin for each side wall, wherein the inside skin is made of a thermoplastic liner.

8 . The refrigerated trailer of claim 7 , wherein the inside skin for each side wall includes multiple pieces bent and joined at a lap joint using fasteners.

9 . The refrigerated trailer of claim 7 , wherein the inside skin for each side wall includes multiple pieces joined at a joint using fasteners.

10 . The refrigerated trailer of claim 7 , wherein the inside skin for each side wall includes multiple pieces joined with adhesives.

11 . The refrigerated trailer of claim 7 , further comprising adhesives used to attach a first plurality of structural posts and the first plurality of VIPs to the inside skin and the outside skin of each side wall.

12 . The refrigerated trailer of claim 1 , further comprising:

an outside skin for the roof, wherein the outside skin is made of an aluminum sheet; and

an inside skin for the roof, wherein the inside skin is made of a thermoplastic liner.

13 . The refrigerated trailer of claim 12 , further comprising adhesives used to attach the plurality of structural posts and the second plurality of VIPs to the inside skin and the outside skin of the roof.

14 . The refrigerated trailer of claim 1 , further comprising:

an outside skin for the roof, wherein the outside skin is made of an aluminum sheet; and

an inside skin for the roof, wherein the inside skin is made of a composite liner.

15 . The refrigerated trailer of claim 1 , further comprising:

an outside skin for each side wall, wherein the outside skin is made of a first composite liner; and

an inside skin for each side wall, wherein the inside skin is made of a second composite liner.

16 . A refrigerated trailer comprising:

a pair of side walls, each side wall including:

first multiple VIPs, wherein each VIP is made of insulants made up of a rigid, highly-porous core material encased in a thin, gas-tight outer envelope; and

composite wall posts arranged in a vertical configuration to hold the first multiple VIPs in place to form the pair of side walls; and

a roof including:

second multiple VIPs, wherein each VIP is made of insulants made up of a rigid, highly-porous core material encased in a thin, gas-tight outer envelope; and

composite roof posts arranged in a horizontal bow configuration to hold the second multiple VIPs in place to form the roof.

17 . The refrigerated trailer of claim 16 , further comprising multiple polyurethane (PU) foams, wherein each PU foam is configured to encapsulate each VIP of the first multiple VIPs and the second multiple VIPs.

18 . The refrigerated trailer of claim 16 , further comprising:

an outside skin for each of the pair of side walls and the roof, wherein the outside skin is made of an aluminum sheet; and

an inside skin for each of the pair of side walls and the roof, wherein the inside skin is made of a thermoplastic liner.

19 . The refrigerated trailer of claim 16 , further comprising:

an outside skin for each of the pair of side walls and the roof, wherein the outside skin is made of an aluminum sheet; and

an inside skin for each of the pair of side walls and the roof, wherein the inside skin is made of a composite liner.

20 . The refrigerated trailer of claim 19 , further comprising adhesives used to attach the composite wall posts, the composite roof posts, the first multiple VIPs and the second multiple VIPs to the inside skin and the outside skin of each of the pair of side walls and the roof.

21 . The refrigerated trailer of claim 16 , wherein each post of the composite wall posts and the composite roof bow.