# US 2016/0365301 A1 · Cooler

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- Number: US 2016/0365301 A1
- Document ID: US20160365301A1
- Status: Published application
- Kind: A1
- Application number: 15/102,732
- Filed: 2014-11-26
- Published: 2016-12-15
- Earliest claimed: 2013-12-11
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Yuya TAKANO
- Web page: https://patentgrep.com/patent/US20160365301A1

## CPC

- H10W 40/475: {using jet impingement (H10W40/776 takes precedence)}
- F28F 25/06: Spray nozzles or spray pipes
- H10W 40/43: by flowing gases, e.g. forced air cooling
- H10W 40/47: by flowing liquids, e.g. forced water cooling
- H10W 40/776: {Arrangements for jet impingement, e.g. for spraying}
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- F28F: DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water and air traps, air venting F16)

## Abstract

A cooler (1) includes: a fin (20) having a coolant inflow port (110a); and a nozzle (10) configured to eject the supplied coolant toward the coolant inflow port (110a). The nozzle (10) includes a flow passage wall (13), a tip end (14), a pressure receiving portion (16) and a deformation portion (15). The tip end (14) provides a coolant supply hole (12) that ejects the coolant flowing through the flow passage. The pressure receiving portion (16) is configured to be provided between the flow passage wall (13) and the coolant supply hole (12), and to receive force in an ejection direction of the coolant. The deformation portion (15) is configured to be provided either of between the flow passage wall (13) and the pressure receiving portion (16) and in the pressure receiving portion (16), and to displace the coolant supply hole (12) in the ejection direction of the coolant in response to the force in the ejection direction of the coolant, the force being received by the pressure receiving portion (16).

## Claims

### Claim 1

A cooler, comprising:
a heat transfer member having a coolant inflow port into which coolant flows; and
a nozzle configured to eject a supplied coolant toward the coolant inflow port, the nozzle including a flow passage wall, a tip end, a pressure receiving portion and a deformation portion, the flow passage wall including a flow passage for the supplied coolant, the tip end including an ejection port that ejects the coolant flowing through the flow passage, the pressure receiving portion being configured to receive force in an ejection direction of the coolant, the pressure receiving portion being provided between the flow passage wall and the ejection port, the deformation portion being configured to displace the ejection port in the ejection direction of the coolant in response to the force in the ejection direction of the coolant, the force being received by the pressure receiving portion, and the deformation portion being provided either between the flow passage wall and the pressure receiving portion or in the pressure receiving portion.

### Claim 2 (depends on 1)

The cooler according to claim 1, wherein
rigidity of the deformation portion is lower than rigidity of the flow passage wall.

### Claim 3 (depends on 2)

The cooler according to claim 2, wherein
a thickness of the deformation portion is thinner than a thickness of the flow passage wall.

### Claim 4 (depends on 2)

The cooler according to claim 2, wherein
the deformation portion is made of a material lower in rigidity than the flow passage wall.

### Claim 5 (depends on 1)

The cooler according to claim 1, wherein
a thin portion that is locally thin is provided in the tip end.

### Claim 6 (depends on 5)

The cooler according to claim 5, wherein
a plurality of the thin portions are provided.

### Claim 7 (depends on 1)

The cooler according to claim 1, wherein
the pressure receiving portion has an inclined surface inclined such that a width of a vicinity of the ejection port is narrow from the flow passage wall toward the ejection port.

### Claim 8 (depends on 1)

The cooler according to claim 1, wherein the pressure receiving portion has a concave curved surface that receives the ejected coolant.

### Claim 9 (depends on 8)

The cooler according to claim 8, wherein
the nozzle includes a tip end member on a peripheral portion of the ejection port, the tip end member serving as a second tip end having the concave curved surface.

### Claim 10 (depends on 1)

The cooler according to claim 1, wherein
a peripheral portion of the ejection port extends along a surface of the heat transfer member, the surface being opposite to the ejection port.

### Claim 11 (depends on 1)

The cooler according to claim 1, wherein
the heat transfer member having the coolant inflow port is a radiating fin that cools a cooling target.