# US 12,191,624 B2 · Cooling system for laser

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- Number: US 12,191,624 B2
- Document ID: US12191624B2
- Status: Granted
- Kind: B2
- Application number: 17/829,834
- Filed: 2022-06-01
- Published: 2023-10-12
- Granted: 2025-01-07
- Earliest claimed: 2022-04-06
- Assignees: Asteroid Trading Limited
- Applicants: Asteroid Trading Limited
- Inventors: Alexander Yebo Chen
- Web page: https://patentgrep.com/patent/US12191624B2

## CPC

- H01S 3/0407: {Liquid cooling, e.g. by water}
- H01S 3/0404: {Air- or gas cooling, e.g. by dry nitrogen}
- H01S: DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL

## Abstract

A cooling system for a laser includes: a laser, a housing of the laser having a water inlet and a water outlet; an air cooling mechanism including a first pipeline, an air cooling module, a cooling liquid tank, and a water pump; wherein the air cooling module, the cooling liquid tank, and the water pump are sequentially connected through the first pipeline, both ends of the first pipeline is connected to the water inlet and the water outlet, respectively; the water pump is closer to the water inlet; a water cooling mechanism including a second pipeline and a water chiller in communication with the second pipeline, both ends of the second pipeline being connected to the water inlet and the water outlet, respectively; and a solenoid valve with one inlet and two outlets arranged at a junction of the water outlet, the first pipeline, and the second pipeline.

## Claims

### Claim 1

A cooling system for a laser, comprising:
a laser, provided with a housing having a water inlet and a water outlet;
an air cooling mechanism comprising a first pipeline, an air cooling module, a cooling liquid tank, and a water pump; the air cooling module, the cooling liquid tank, and the water pump being sequentially connected through the first pipeline; both ends of the first pipeline being connected to the water inlet and the water outlet, respectively; the water pump being closer to the water inlet;
a water cooling mechanism comprising a second pipeline and a water chiller in communication with the second pipeline; both ends of the second pipeline being connected to the water inlet and the water outlet, respectively; and
a solenoid valve with one inlet and two outlets arranged at a junction of the water outlet, the first pipeline, and the second pipeline.

### Claim 2 (depends on 1)

The cooling system for the laser according to claim 1, further comprising a three-way connector; wherein the three-way connector is arranged at a junction of the water inlet, the first pipeline, and the second pipeline.

### Claim 3 (depends on 2)

The cooling system for the laser according to claim 2, wherein the air cooling mechanism further comprises a first one-way valve arranged between the first pipeline and the three-way connector; and
the water cooling mechanism further comprises a second one-way valve arranged between the second pipeline and the three-way connector.

### Claim 4 (depends on 2)

The cooling system for the laser according to claim 2, wherein a water shortage protector is provided between the three-way connector and the water inlet.

### Claim 5 (depends on 1)

The cooling system for the laser according to claim 1, further comprising a solenoid valve with two inlets and one outlet arranged at a junction of the water inlet, the first pipeline, and the second pipeline.

### Claim 6 (depends on 1)

The cooling system for the laser according to claim 1, wherein the air cooling module comprises a fixing base and a plurality of fans arranged on the fixing base; the first pipeline is connected to the fixing base; a flow channel is provided in the fixing base; and an air outlet of each of the fans is arranged toward the flow channel.

### Claim 7 (depends on 6)

The cooling system for the laser according to claim 6, wherein a plurality of flow channels are provided.

### Claim 8 (depends on 1)

The cooling system for the laser according to claim 1, wherein the water chiller is detachably arranged on the second pipeline.

### Claim 9 (depends on 8)

The cooling system for the laser according to claim 8, wherein an inlet and an outlet of the water chiller are each provided with a joint; and the joint is capable of being connected to the second pipeline.

### Claim 10 (depends on 1)

The cooling system for the laser according to claim 1, further comprising a power module; wherein the power module is electrically connected to the air cooling module, the water pump, the water chiller, and the solenoid valve with one inlet and two outlets.