Heat management system

1. A heat management system comprising:

a high-temperature heat medium circuit connecting a heat medium and refrigerant heat exchanger and a heater core to circulate a heat medium, the heat medium and refrigerant heat exchanger being configured to adjust a temperature of a heat medium by heat exchange with a refrigerant circulating in a refrigeration cycle, and the heater core being configured to radiate heat of the heat medium to ventilation air to be blown to a space to be air conditioned;

a low-temperature heat medium circuit connecting a radiator and a heat generation equipment to circulate the heat medium, the radiator being configured to radiate heat of the heat medium to outside air, and the heat generation equipment being configured to generate heat in accordance with operation and to have a temperature adjusted by the heat of the heat medium;

a circuit connection part connecting the high-temperature heat medium circuit and the low-temperature heat medium circuit, to flow in and out the heat medium in the high-temperature heat medium circuit and the low-temperature heat medium circuit; and

a circuit switching part configured to switch the flow of the heat medium flowing in the high-temperature heat medium circuit, the low-temperature heat medium circuit and the circuit connection part, wherein

the circuit switching part is configured to switch between

an operation mode in which the heat medium heated by the heat medium and refrigerant heat exchanger is circulated to pass through the heater core, and

an operation mode in which the heat medium heated by the heat generation equipment and the heat medium and refrigerant heat exchanger is circulated to pass through the heater core, and

in the operation mode in which the heat medium heated by the heat generation equipment and the heat medium and refrigerant heat exchanger is circulated to pass through the heater core, the circuit switching part is configured to switch an operation mode in which the heat medium is circulated in a circulation path via the heat medium and refrigerant heat exchanger and the heater core, and the heat medium is circulated in a heat medium circulation path via the heat generation equipment and the radiator independently of a heat medium circulation path via the heat medium and refrigerant heat exchanger and the heater core, when the temperature of the heat medium is higher than a predetermined reference temperature.

2. The heat management system according to claim 1 , wherein the circuit switching part is configured to switch an operation mode in which the space to be air conditioned is heated by circulating the heated heat medium to pass through the heater core, and the heat medium is circulated in a heat medium circulation path via the heat generation equipment independently of a heat medium circulation path via the heater core.

3. The heat management system according to claim 2 , wherein the radiator is included in the heat medium circulation path via the heat generation equipment.

4. The heat management system according to claim 1 , wherein

the refrigeration cycle includes an exterior heat exchanger that exchanges heat between the refrigerant and the outside air,

the circuit switching part is configured to switch an operation mode in which the heat medium is circulated via the heat medium and refrigerant heat exchanger and the heater core, and the heat medium flowing into and out of the heat generation equipment is restricted, and

the heat medium and refrigerant heat exchanger is configured to absorb heat of the heat medium and to supply the heat to the exterior heat exchanger.

5. The heat management system according to claim 1 , wherein the circuit switching part is configured to switch an operation mode in which the heat medium heated by the heat generation equipment is circulated to pass through the radiator, and the heat medium flowing into and out of the heat medium and refrigerant heat exchanger is restricted.

6. The heat management system according to claim 1 , wherein

in the operation mode in which the heat medium heated by the heat generation equipment and the heat medium and refrigerant heat exchanger is circulating to pass through the heater core, the circuit switching part is configured to switch an operation mode in which the heat medium is circulated to pass through the radiator in addition to the heat generation equipment, the heat medium and refrigerant heat exchanger and the heater core, when a high-temperature condition regarding the temperature of the heat medium is satisfied.

7. The heat management system according to claim 1 , wherein the high-temperature heat medium circuit includes a heater that is configured to heat the heat medium flowing into the heater core in accordance with operation and to arbitrarily adjust a heat amount for heating the heat medium.

8. A heat management system comprising:

a high-temperature heat medium circuit connecting a heat medium and refrigerant heat exchanger and a heater core to circulate a heat medium, the heat medium and refrigerant heat exchanger being configured to adjust a temperature of a heat medium by heat exchange with a refrigerant circulating in a refrigeration cycle, and the heater core being configured to radiate heat of the heat medium to ventilation air to be blown to a space to be air conditioned;

a low-temperature heat medium circuit connecting a radiator and a heat generation equipment to circulate the heat medium, the radiator being configured to radiate heat of the heat medium to outside air, and the heat generation equipment being configured to generate heat in accordance with operation and to have a temperature adjusted by the heat of the heat medium;

a circuit connection part connecting the high-temperature heat medium circuit and the low-temperature heat medium circuit, to flow in and out the heat medium in the high-temperature heat medium circuit and the low-temperature heat medium circuit;

an equipment heat exchange part connected to allow inflow and outflow of the heat medium and configured to exchange heat between the heat medium and a target equipment to be subjected to temperature adjustment; and

a circuit switching part configured to switch the flow of the heat medium flowing in the high-temperature heat medium circuit, the low-temperature heat medium circuit and the circuit connection part, wherein

the circuit switching part is configured to switch between

an operation mode in which the heat medium heated by the heat medium and refrigerant heat exchanger is circulated to pass through the heater core, and

an operation mode in which the heat medium heated by the heat generation equipment and the heat medium and refrigerant heat exchanger is circulated to pass through the heater core, and

the circuit switching part is configured to switch an operation mode in which the heat medium having passed through the heat medium and refrigerant heat exchanger is circulated to pass through the equipment heat exchange part, and a heat medium circulation pass via the heater core is made independent of a heat medium circulation path including the heat medium and refrigerant heat exchanger and the equipment heat exchange part.

9. The heat management system according to claim 8 , wherein

when the heat medium having passed through the heat medium and refrigerant heat exchanger is circulated to pass through the equipment heat exchange part, the circuit switching part is configured to switch an operation mode in which the heat medium is circulated in a heat medium circulation path via the heater core and the heat generation equipment independently of the heat medium circulation path including the heat medium and refrigerant heat exchanger and the equipment heat exchange part.

10. The heat management system according to claim 8 , wherein

when the heat medium having passed through the heat medium and refrigerant heat exchanger is circulated to pass through the equipment heat exchange part, the circuit switching part is configured to switch an operation mode in which the heat medium is circulated to pass through the heater core, the heat generation equipment, and the radiator independently of the heat medium circulation path including the heat medium and refrigerant heat exchanger and the equipment heat exchange part.

11. A heat management system comprising:

a high-temperature heat medium circuit connecting a heat medium and refrigerant heat exchanger and a heater core to circulate a heat medium, the heat medium and refrigerant heat exchanger being configured to adjust a temperature of a heat medium by heat exchange with a refrigerant circulating in a refrigeration cycle, and the heater core being configured to radiate heat of the heat medium to ventilation air to be blown to a space to be air conditioned;

a low-temperature heat medium circuit connecting a radiator and a heat generation equipment to circulate the heat medium, the radiator being configured to radiate heat of the heat medium to outside air, and the heat generation equipment being configured to generate heat in accordance with operation and to have a temperature adjusted by the heat of the heat medium;

a circuit connection part connecting the high-temperature heat medium circuit and the low-temperature heat medium circuit, to flow in and out the heat medium in the high-temperature heat medium circuit and the low-temperature heat medium circuit;

an equipment heat exchange part that is connected to allow inflow and outflow of the heat medium and exchanges heat between the heat medium and a target equipment to be subjected to temperature adjustment; and

a circuit switching part configured to switch the flow of the heat medium flowing in the high-temperature heat medium circuit, the low-temperature heat medium circuit and the circuit connection part, wherein

the circuit switching part is configured to switch between

an operation mode in which the heat medium heated by the heat medium and refrigerant heat exchanger is circulated to pass through the heater core, and

an operation mode in which the heat medium heated by the heat generation equipment and the heat medium and refrigerant heat exchanger is circulated to pass through the heater core, and

the circuit switching part is configured to switch an operation mode in which the heat medium having passed through the heat medium and refrigerant heat exchanger is circulated to pass through the heater core, and the flow of the heat medium flowing in the equipment heat exchange part is made independent of a heat medium circulation path including the heat medium and refrigerant heat exchanger and the heater core.

12. The heat management system according to claim 11 , wherein

when the heat medium having passed through the heat medium and refrigerant heat exchanger is circulated to pass through the heater core, the circuit switching part is switched to an operation mode in which the heat medium is circulated via the equipment heat exchange part and radiator independently of the heat medium circulation path including the heat medium and refrigerant heat exchanger and the heater core.

13. The heat management system according to claim 11 , wherein

when the heat medium having passed through the heat medium and refrigerant heat exchanger is circulated through the heater core, the circuit switching part is switched to an operation mode in which the heat medium is circulated to pass through the equipment heat exchange part, the radiator and the heat generation equipment, independently of the heat medium circulation path including the heat medium and refrigerant heat exchanger and the heater core.

14. The heat management system according to claim 11 , wherein

when the heat medium having passed through the heat medium and refrigerant heat exchanger is circulated through the heater core, the circuit switching part is switched to an operation mode in which the heat medium is circulated to pass through the equipment heat exchange part and the heat generation equipment, independently of the heat medium circulation path including the heat medium and refrigerant heat exchanger and the heater core.

15. The heat management system according to claim 11 , wherein

when the heat medium having passed through the heat medium and refrigerant heat exchanger is circulated through the heater core, the circuit switching part is switched to an operation mode in which the heat medium flowing into and out of the equipment heat exchange part is restricted independently of the circulation of the heat medium via the heat medium and refrigerant heat exchanger and the heater core.

16. The heat management system according to claim 8 , wherein

the high-temperature heat medium circuit includes a heater configured to heat the heat medium flowing into the heater core in accordance with operation and to arbitrarily adjusting an amount of heat for heating the heat medium.

17. The heat management system according to claim 16 , wherein

the circuit switching part is configured to switch an operation mode in which the heat medium having passed through the heat medium and refrigerant heat exchanger is branched into a flow via the heater and the heater core and a flow via the equipment heat exchange part, and to cause simultaneously

(i) a circulation of the heat medium via the heat medium and refrigerant heat exchanger, the heater and the heater core and

(ii) a circulation of the heat medium via the heat medium and refrigerant heat exchanger and the equipment heat exchange part.