# US 2022/0063369 A1 · Combination of a Roof Top Air Conditioning Unit

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- Number: US 2022/0063369 A1
- Document ID: US20220063369A1
- Status: Published application
- Kind: A1
- Application number: 17/423,251
- Filed: 2020-01-15
- Published: 2022-03-03
- Earliest claimed: 2019-01-23
- Assignees: Dometic Sweden AB
- Applicants: Dometic Sweden AB; Dometic (Zhuhai) Technology Co., Ltd.
- Inventors: Jianmin Chen; Sihu Liu
- Web page: https://patentgrep.com/patent/US20220063369A1

## CPC

- B60H 1/00207: {characterised by the position of the HVAC devices with respect to the passenger compartment (B60H1/00021 takes precedence)}
- B60H 1/00371: {for vehicles carrying large numbers of passengers, e.g. buses}
- B60H 1/00535: {Mounting or fastening of the housing to the vehicle}
- B60H 1/00564: {of air ducts}
- B60H 1/262: {Openings in or on the vehicle roof}
- B60H 2001/00235: {Devices in the roof area of the passenger compartment}
- B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES

## Abstract

A combination of a roof top air conditioning unit, the combination comprising a roof top unit, a roof, connection air ducts and an air distribution box, wherein the roof top unit is disposed on an outer wall surface of the roof, the roof top unit having a base pan provided with an air outlet; the air distribution box disposed on an inner wall surface of the roof, the air distribution box provided with an air inlet upper duct; the plurality of connection air ducts communicating the air outlet of the roof top unit with the air inlet upper duct of the air distribution box via the opening of the roof, characterized in that an adjustment portion for adjusting a roof thickness gap is provided around the air outlet of the base pan. This combination simplifies the complexity of assembly, such that the mounting process is simpler, and thus the cost is also reduced.

## Claims

### Claim 1

A combination of a roof top air conditioning unit, the combination comprising a roof top unit, a roof, connection air ducts and an air distribution box, wherein the roof top unit is disposed on an outer wall surface of the roof, the roof top unit having a base pan provided with an air outlet; the air distribution box disposed on an inner wall surface of the roof, the air distribution box provided with an air inlet upper duct; the connection air ducts communicating the air outlet of the base pan with the air inlet upper duct of the air distribution box via the opening of the roof, characterized in that an adjustment portion for adjusting a roof thickness gap is provided around the air outlet of the base pan.

### Claim 2 (depends on 1)

The combination of a roof top air conditioning unit of claim 1, wherein the adjustment portion is a groove for connecting with the connection air ducts, with the depth of the groove being greater than or equal to the thickness of the connection air ducts.

### Claim 3 (depends on 2)

The combination of a roof top air conditioning unit of claim 2, wherein the depth of the groove is 8-20 mm.

### Claim 4 (depends on 3)

The combination of a roof top air conditioning unit of claim 3, wherein the depth of the groove is 14 mm.

### Claim 5 (depends on 2)

The combination of a roof top air conditioning unit of claim 2, wherein a substantially airtight gap is provided between the connection air ducts and the groove in a direction substantially perpendicular to the base pan of the roof top unit.

### Claim 6 (depends on 1)

The combination of a roof top air conditioning unit of claim 1, wherein the connection between the connection air ducts and the groove is substantially sealed.

### Claim 7 (depends on 1)

The combination of a roof top air conditioning unit of claim 1, wherein the connection air ducts are EPP connection air ducts.

### Claim 8 (depends on 1)

The combination of a roof top air conditioning unit of claim 1, wherein the thickness of the connection air ducts is 8-15 mm.

### Claim 9 (depends on 8)

The combination of a roof top air conditioning unit of claim 8, wherein the thickness of the connection air ducts is 10 mm.

### Claim 10 (depends on 1)

The combination of a roof top air conditioning unit of claim 1, wherein the connection air ducts connected to the air inlet upper duct of the air distribution box has a structure, at a lower portion thereof, fitting the shape of an upper portion of the air inlet upper duct.

### Claim 11 (depends on 1)

The combination of a roof top air conditioning unit of claim 1, wherein the roof is a vehicle roof.