# US 2013/0152604 A1 · Fluid temperature adjusting device

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- Number: US 2013/0152604 A1
- Document ID: US20130152604A1
- Status: Published application
- Kind: A1
- Application number: 13/719,503
- Filed: 2012-12-19
- Published: 2013-06-20
- Earliest claimed: 2011-12-20
- Assignees: KELK Ltd.
- Inventors: Mitsuru Mimata; Koji Maeda
- Web page: https://patentgrep.com/patent/US20130152604A1

## CPC

- F25B 21/04: reversible
- H10P 72/0402: {Apparatus for fluid treatment (H10P72/0441, H10P72/0448 take precedence)}
- H10P 72/0434: {mainly by convection}
- F25B 2321/021: Control thereof
- F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- H10P: GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10

## Abstract

A fluid temperature adjusting device includes: a heater configured to heat a fluid passing through a fluid passageway; a peltier module including a plurality of peltier elements, the peltier module configured to heat or cool the fluid passing through the fluid passageway; and a controller configured to supply thermal energy from both the heater and the peltier module to the fluid and switch magnitudes of an operation amount of the heater and an operation amount of the peltier module when heating the fluid so that the fluid is kept at a target temperature.

## Claims

### Claim 1

A fluid temperature adjusting device comprising:
a heater configured to heat a fluid passing through a fluid passageway;
a peltier module including a plurality of peltier elements, the peltier module configured to heat or cool the fluid passing through the fluid passageway; and
a controller configured to supply thermal energy from both the heater and the peltier module to the fluid and switch magnitudes of an operation amount of the heater and an operation amount of the peltier module when heating the fluid so that the fluid is kept at a target temperature.

### Claim 2 (depends on 1)

The fluid temperature adjusting device according to claim 1,
wherein the controller is configured to change an upper limit value of the thermal energy to be supplied to the fluid based on at least one of a temperature of the fluid after heating and a temperature of a heat transfer member transferring the thermal energy from the heater and the peltier module to the fluid inside the fluid passageway.

### Claim 3 (depends on 2)

The fluid temperature adjusting device according to claim 2,
wherein the controller is configured to set a small one of the upper limit value of the thermal energy to be supplied to the fluid based on the temperature of the fluid after heating and the upper limit value of the thermal energy to be supplied to the fluid based on the temperature of the heat transfer member as the upper limit value of the thermal energy to be supplied to the fluid.

### Claim 4

A fluid temperature adjusting device comprising:
a heater configured to heat a fluid passing through a fluid passageway;
a peltier module including a plurality of peltier elements, the peltier module configured to heat or cool the fluid passing through the fluid passageway; and
a controller configured to supply thermal energy from both the heater and the peltier module to the fluid and causes an operation amount of the heater to be larger than an operation amount of the peltier module with an increase in total thermal energy to be supplied to the fluid when heating the fluid so that the fluid is kept at a target temperature.

### Claim 5 (depends on 4)

The fluid temperature adjusting device according to claim 4,
wherein the controller is configured to change an upper limit value of the thermal energy to be supplied to the fluid based on at least one of a temperature of the fluid after heating and a temperature of a heat transfer member transferring the thermal energy from the heater and the peltier module to the fluid inside the fluid passageway.

### Claim 6 (depends on 5)

The fluid temperature adjusting device according to claim 5,
wherein the controller is configured to set a small one of the upper limit value of the thermal energy to be supplied to the fluid based on the temperature of the fluid after heating and the upper limit value of the thermal energy to be supplied to the fluid based on the temperature of the heat transfer member as the upper limit value of the thermal energy to be supplied to the fluid.

### Claim 7

A fluid temperature adjusting device comprising:
a heater configured to heat a fluid passing through a fluid passageway;
a peltier module including a plurality of peltier elements, the peltier module configured to heat or cool the fluid passing through the fluid passageway; and
a controller configured to supply thermal energy from both the heater and the peltier module to the fluid and change an upper limit value of the thermal energy to be supplied to the fluid based on a temperature of the fluid after heating and a temperature of a heat transfer member transferring the thermal energy from the heater and the peltier module to the fluid inside the fluid passageway when heating the fluid.

### Claim 8 (depends on 7)

The fluid temperature adjusting device according to claim 7,
wherein the controller is configured to set the upper limit value of the thermal energy to be supplied to the fluid based on the temperature of the fluid after heating and set, with respect to the set upper limit value, an upper limit value based on the temperature of the heat transfer member.

### Claim 9 (depends on 7)

The fluid temperature adjusting device according to claim 7,
wherein the controller is configured to set a small one of the upper limit value of the thermal energy to be supplied to the fluid based on the temperature of the fluid after heating and the upper limit value of the thermal energy to be supplied to the fluid based on the temperature of the heat transfer member as the upper limit value of the thermal energy to be supplied to the fluid.