# US 10,500,922 B2 · Evaporator

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- Number: US 10,500,922 B2
- Document ID: US10500922B2
- Status: Granted
- Kind: B2
- Application number: 15/564,203
- Filed: 2016-04-15
- Published: 2018-05-10
- Granted: 2019-12-10
- Earliest claimed: 2015-04-17
- Assignees: Denso Corporation
- Applicants: Denso Corporation
- Inventors: Tatsuhiko Nishino; Gouki Akiyoshi; Akinori Kuwayama
- Web page: https://patentgrep.com/patent/US10500922B2

## CPC

- B60H 1/32: Cooling devices {(B60H1/00478, B60H1/005 take precedence)}
- F25B 39/02: Evaporators
- F28D 1/05383: {with multiple rows of conduits or with multi-channel conduits (F28D1/05391 takes precedence)}
- F28D 1/05391: {with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators}
- F28F 9/002: {with fastening means for other structures}
- F28F 9/02: Header boxes; End plates
- F25B 2500/12: Sound
- F28D 2021/0085: {Evaporators}
- F28F 2265/28: for preventing noise
- F28F 2265/30: for preventing vibrations
- F28F 2275/02: by using bonding materials; by embedding elements in particular materials
- F28F 2275/14: by using form fitting connection, e.g. with tongue and groove
- F28F 2275/143: with pin and hole connections
- B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F28D: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general)
- F28F: DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water and air traps, air venting F16)

## Abstract

An evaporator has an outer peripheral side held by a holding portion. The evaporator includes a body portion and a packing located on a part of the body portion that faces to the holding portion. The packing includes an inner elastic layer and an outer elastic layer. The inner elastic layer has a water absorbability smaller than that of the outer elastic layer and is made of a closed cell foam member. The outer elastic layer is made of an open cell foam member. The holding portion includes a first rib preventing an air from flowing along the outer peripheral side of the body portion, and a second rib preventing a displacement of the body portion. A thickness of the outer elastic layer in a condition where the outer elastic layer is not held by the holding portion is larger than a protrusion length of the first rib.

## Claims

### Claim 1

A holding structure of an evaporator with a body portion, the holding structure comprising:
a packing adhered to a surface of the evaporator; and
an air-conditioning case that defines an air passage in which the evaporator is provided, the air-conditioning case including a holding portion that protrudes from an inner surface of the air-conditioning case to hold the evaporator by compressing the packing, wherein
the packing includes
an inner elastic layer closest to the body portion in the packing, and
an outer elastic layer closest to the holding portion in the packing,
a bulk modulus of the outer elastic layer is smaller than a bulk modulus of the inner elastic layer,
a water absorbability of the inner elastic layer is smaller than a water absorbability of the outer elastic layer,
the inner elastic layer is made of a closed cell foam member,
the outer elastic layer is made of an open cell foam member,
the holding portion includes
a first rib that compresses the packing to prevent an air from flowing along the outer peripheral side of the body portion, and
a second rib that compresses the packing to prevent a displacement of the body portion, and
a thickness of a part of the outer elastic layer that is not compressed by the holding portion is larger than a protrusion length of the first rib.

### Claim 2 (depends on 1)

The holding structure of the evaporator according to claim 1, wherein
the thickness of the part of the outer elastic layer that is not compressed by the holding portion is smaller than a protrusion length of the second rib.

### Claim 3 (depends on 1)

The holding structure of the evaporator according to claim 1, wherein
the protrusion length of the first rib is smaller than a protrusion length of the second rib.

### Claim 4 (depends on 2)

The holding structure of the evaporator according to claim 2, wherein
the protrusion length of the first rib is smaller than the protrusion length of the second rib.