JP2018193001A - Heat control device - Google Patents

Abstract

To improve utilization efficiency of heat.SOLUTION: A heat control device 1 includes: an engine 10 for driving a movable body; a heat storage section 13 for storing heat generated in the movable body; and a control section 30 which switches a first mode in which heat stored by the heat storage section 13 is used for warming-up of the engine 10 by making a heat conveyance medium flow in a first direction and a second mode for storing heat generated by the engine 10 in the heat storage section 13 by making the heat conveyance medium flow in a direction opposite to the first direction. The heat control device further includes a pump 22 capable of switching the flowing direction of the heat conveyance medium so as to supply the heat conveyance medium warmed by the heat stored by the heat storage section 13 to the engine 10 in the first mode and to supply the heat conveyance medium warmed by the heat generated by the engine 10 to the heat storage section 13 in the second mode.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a heat control device for recovering heat generated in a vehicle and using it in the vehicle.

  The vehicle is provided with a heat control device that recovers heat generated in the vehicle and uses the heat in the vehicle. Patent Document 1 discloses a structure in which warm water stored in a heat storage tank flows into an engine after flowing into an intake heat exchanger and a heater.

JP-A-9-13964

  Conventionally, when flowing hot water from a heat accumulator to an engine, the heat accumulator is constituted by a one-way circulation loop such as heat accumulator → collector → engine → heater → heat accumulator. Therefore, since the heat of the heat accumulator is supplied to the engine after passing through a plurality of devices in the vehicle, the heat of the heat accumulator is dissipated before reaching the engine, and the heat utilization efficiency is reduced. There was a problem.

  Then, this invention is made | formed in view of these points, and it aims at providing the thermal control apparatus which the utilization efficiency of heat improves.

  In the first aspect of the present invention, the heat storage unit is configured to flow an engine for driving the mobile body, a heat storage unit that stores heat generated in the mobile body, and a heat transfer medium in a first direction. A first mode in which the heat stored in the engine is used to warm up the engine, and a heat storage medium that stores the heat generated by the engine in a direction opposite to the first direction. There is provided a thermal control device including a control unit that switches between two modes.

  In the first mode, the heat transfer medium heated by the heat stored in the heat storage unit is supplied to the engine, and in the second mode, the heat transfer medium heated by the heat generated by the engine. May be further provided with a pump capable of switching the flow direction of the heat transfer medium so as to be supplied to the heat storage unit.

  Further, in the first mode, the first heat supply medium heated by the heat stored in the heat storage section is supplied to the engine, and the second mode is heated by the heat generated by the engine in the second mode. And a second pipe for supplying the heat transfer medium to the heat storage unit.

  A heater that raises the temperature in the room of the moving body; and in the first mode, the heat transfer medium heated by the heat stored in the heat storage unit is supplied to the engine, and in the second mode, You may further have the 1st switching part which supplies the said heat carrier medium to the said thermal storage part, without passing through a heater part.

  In the first mode, the control unit is heated by the heat stored in the heat storage unit without passing through the heater unit from the heat storage unit in the first mode. The heat transfer medium is supplied to the engine, and in the second mode, the heat transfer medium heated by the heat generated by the engine is controlled to be supplied to the heat storage unit via the heater unit. May be.

  According to the present invention, there is an effect that heat utilization efficiency is improved.

The structure (1st mode) of the thermal control apparatus which concerns on 1st Embodiment is shown. The structure (2nd mode) of the thermal control apparatus which concerns on 1st Embodiment is shown. The structure (1st mode) of the thermal control apparatus which concerns on 2nd Embodiment is shown. The structure (2nd mode) of the thermal control apparatus which concerns on 2nd Embodiment is shown.

<First Embodiment>
[Basic configuration of thermal control device 1]
FIG.1 and FIG.2 is a figure which shows the structure of the thermal control apparatus 1 which concerns on 1st Embodiment. FIG. 1 shows the thermal control device 1 in the first mode state, and FIG. 2 shows the thermal control device 1 in the second mode state. The thermal control device 1 is mounted on a vehicle that is a kind of moving body. 1 and 2 indicate the direction in which the heat transfer medium in the vehicle flows through the pipe. The heat transfer medium is, for example, cooling water.

  The heat control device 1 is a device that effectively uses heat generated from the engine 10 of the vehicle and heat of exhaust gas in the vehicle. The thermal control device 1 includes an engine 10, an exhaust pipe 11, a recovery unit 12, a heat storage unit 13, a heater unit 14, a valve 15, a radiator 20, a thermostat 21, a pump 22, and a control unit 30.

  The heat control device 1 switches the flow of the heat transfer medium between the first mode and the second mode. The first mode is a mode used when the engine 10 is warmed up, for example. The second mode is a mode used after the engine 10 is warmed up, for example. In the first mode shown in FIG. 1, the heat transfer medium flows in the order of the heat storage section 13 → the valve 15 → the heater section 14 → the pump 22 → the engine 10 → the recovery section 12 → the heat storage section 13. The heat transfer medium that has flowed out of the heat storage unit 13 may flow into the pump 22 without flowing through the heater unit 14 when the valve 15 is operated as described later.

  In the second mode shown in FIG. 2, the heat transfer medium flows in the order of the heat storage unit 13 → the recovery unit 12 → the engine 10 → the pump 22 → the heater unit 14 → the valve 15 → the heat storage unit 13. A part of the heat transfer medium flowing out from the engine 10 passes through the pump 22 and the thermostat 21, flows through the radiator 20, and then flows into the engine 10 again.

  The engine 10 generates power for driving the vehicle. The engine 10 is, for example, a diesel engine or a gasoline engine. The exhaust pipe 11 is a pipe through which exhaust gas discharged from the engine 10 flows. The recovery unit 12 has a function of recovering the exhaust heat of the exhaust gas discharged from the engine 10. The collection unit 12 is a heat exchanger, for example. The recovery unit 12 is provided in the exhaust pipe 11. Exhaust gas discharged from the engine 10 flows through the exhaust pipe 11 and passes through the recovery unit 12, and is then discharged to the outside of the vehicle. At that time, the exhaust gas heat-exchanges with the heat carrier medium in the recovery unit 12 to heat the heat carrier medium. On the other hand, the exhaust gas is cooled and discharged to the outside of the vehicle.

  The heat storage unit 13 has a function of storing heat generated in the vehicle. The heat storage unit 13 stores heat, for example, by temporarily storing a heat transfer medium warmed by heat generated by the engine 10. The heat storage unit 13 is connected to the heater unit 14 via a pipe 51. Further, the heat storage unit 13 is connected to the recovery unit 12 via a pipe 52. The heat storage unit 13 is provided between the recovery unit 12 and the valve 15, and stores heat by temporarily storing the heat transfer medium that has passed through the heater unit 14.

  The heater unit 14 has a function of performing heat exchange between air in the vehicle interior and the heat transfer medium. When the temperature of the heat transfer medium is higher than the temperature of the indoor air, the heater unit 14 raises the temperature of the room by discharging the air heated by the heat of the heat transfer medium into the room. The user can set the indoor temperature using an operation unit provided on the instrument panel of the vehicle. Based on the control of the control unit 30, the heater unit 14 operates so that the indoor temperature becomes a set temperature. The heater unit 14 is connected to the heat storage unit 13 via a pipe 51. The heater unit 14 is connected to the pipe 54 via the pipe 53. The pipe 54 is a pipe that connects the engine 10 and the radiator 20.

  The valve 15 has a function of switching the flow path of the heat transfer medium based on an instruction from the control unit 30. The valve 15 is provided between the heat storage unit 13 and the heater unit 14. The radiator 20 has a function of cooling the engine 10. The radiator 20 is connected to the engine 10 via a pipe 54 and a pipe 55. The pipe 54 is provided with the thermostat 21 and the pump 22. The pipe 56 is a pipe that connects the pipe 55 and the collection unit 12.

  The thermostat 21 has a function of sensing the temperature of the heat transfer medium and adjusting the flow rate. As shown in FIG. 2, in the second mode, a part of the heat transfer medium heated by the engine 10 and flowing out of the engine 10 passes through the pump 22 and the thermostat 21 and flows into the radiator 20. Then, the radiator 20 cools the heat transfer medium by exchanging heat between the heated heat transfer medium and the air blown by the traveling wind or the fan. The cooled heat transfer medium that has flowed out of the radiator 20 flows into the engine 10 to cool the engine 10.

  The pump 22 has a function of generating a force for flowing the heat transfer medium. The pump 22 can adjust the flow rate per unit time of the heat transfer medium under the control of the control unit 30. The pump 22 rotates forward or backward based on an instruction from the control unit 30. The pump 22 can switch the direction of the heat transfer medium passing through the pump 22 by rotating forward or backward under the control of the control unit 30.

[Mode switching operation by control unit 30]
FIG. 1 shows a first mode state in which the pump 22 supplies the heat transfer medium sent from the heat storage unit 13 to the engine 10. FIG. 2 shows a state of the second mode in which the pump 22 supplies the heat transfer medium sent from the engine 10 to the heater unit 14.

  The control unit 30 controls each unit of the thermal control device 1. The control unit 30 includes, for example, a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory). The control unit 30 executes control for switching the flow path of the heat transfer medium by executing a program stored in the ROM.

  The control unit 30 causes the heat transfer medium to flow in the first direction so that the heat stored in the heat storage unit 13 is used for warming up the engine 10, and the heat transfer medium is in a direction opposite to the first direction. Is switched to the second mode in which heat generated by the engine 10 is stored in the heat storage unit 13.

  Specifically, the control unit 30 rotates the pump 22 forward or backward. As shown in FIG. 1, in the first mode, the control unit 30 warms up the engine 10 by supplying the heat transfer medium from the heat storage unit 13 to the engine 10 by rotating the pump 22 in the reverse direction. . Further, as shown in FIG. 2, in the second mode, the control unit 30 stores heat by supplying the heat transfer medium from the engine 10 to the heat storage unit 13 by rotating the pump 22 forward.

  Further, in the first mode, the control unit 30 supplies the heat transfer medium heated by the heat stored in the heat storage unit 13 to the engine 10 without passing through the heater unit 14 from the heat storage unit 13, and in the second mode, Control is performed so that the heat transfer medium heated by the heat generated by the engine 10 is supplied to the heat storage unit 13 without passing through the heater unit 14.

  Specifically, as shown in FIGS. 1 and 2, the thermal control device 1 has a bypass passage 16. The bypass passage 16 is a pipe that connects the valve 15 and the pipe 53. The control unit 30 operates the valve 15 and reversely rotates the pump 22 so that the heat transfer medium warmed by the heat stored in the heat storage unit 13 passes through the bypass passage 16 and is supplied to the engine 10. To do. In addition, the control unit 30 operates the valve 15 and rotates the pump 22 in the forward direction so that the heat transfer medium warmed by the heat generated by the engine 10 passes through the bypass passage 16 and passes through the heat storage unit 13. To supply.

  Since the heat control device 1 can supply the heat transfer medium to the engine 10 without using the heater 14 when the engine 10 is warmed up by the heat transfer medium stored in the heat storage unit 13 in this way. The engine 10 can be warmed up with priority. As a result, the thermal control device 1 can further shorten the time for warming up the engine 10.

  Further, when the heat control device 1 stores the heat storage unit 13 with the heat transfer medium flowing from the engine 10, the heat control unit 1 can supply the heat transfer medium to the heat storage unit 13 without using the heater unit 14. Priority can be given.

[Effects of the thermal control device 1 according to the first embodiment]
The heat control apparatus 1 according to the first embodiment includes an engine 10 for driving a moving body, and a heat storage unit 13 that stores heat generated in the moving body. Further, the heat control device 1 causes the heat transfer medium to flow in the first direction so that the heat stored in the heat storage unit 13 is used for warming up the engine 10, and the heat transfer medium is set to the first direction. It has the control part 30 which switches to the 2nd mode which heat-stores the heat which the engine 10 generate | occur | produced in the heat storage part 13 by making it flow in the reverse direction.

  In the heat control device 1 according to the first embodiment, the heat transfer medium is caused to flow in the first direction as described above, so that the heat stored in the heat storage unit 13 is used for warming up the engine 10 and heat. The control unit 30 switches between a second mode in which the heat generated by the engine 10 is stored in the heat storage unit 13 by flowing the transport medium in a direction opposite to the first direction. Therefore, when the heat control device 1 warms up the engine 10, the heat stored in the heat storage unit 13 is supplied to the engine 10 at a short distance, and the heat generated from the engine 10 is stored in the heat storage unit 13. The heat storage unit 13 can be supplied at a short distance. As a result, the heat control device 1 improves heat utilization efficiency.

<Second Embodiment>
[Basic Configuration of Thermal Control Device 1a]
3 and 4 are diagrams showing the configuration of the thermal control device 1a according to the second embodiment. FIG. 3 shows the thermal control device 1a in the first mode state, and FIG. 4 shows the thermal control device 1a in the second mode state. 3 and 4 indicate the direction in which the heat transfer medium in the vehicle flows through the pipe.

  The heat control apparatus 1a according to the second embodiment does not include the pump 22 as compared with the heat control apparatus 1 according to the first embodiment, and includes the first switching unit 43 and the second switching unit 44. The control unit 30 is different in that it controls the flow of the heat transfer medium by controlling the first switching unit 43 and the second switching unit 44. The first switching unit 43 includes, for example, a valve 431 and a valve 432. The second switching unit 44 has a valve 441, for example.

  The heat control device 1a switches the flow of the heat transfer medium between the first mode and the second mode. The first mode is a mode used when the engine 10 is warmed up, for example. The second mode is a mode used after the engine 10 is warmed up, for example. In the first mode shown in FIG. 3, the heat transfer medium flows in the order of heat storage section 13 → heater section 14 → valve 432 → engine 10 → valve 431 → valve 441 → recovery section 12 → heat storage section 13.

  In the second mode shown in FIG. 4, the heat transfer medium flows in the order of the heat storage unit 13 → the recovery unit 12 → the valve 441 → the engine 10 → the valve 431 → the valve 432 → the heater unit 14 → the heat storage unit 13. A part of the heat transfer medium flowing out from the engine 10 passes through the thermostat 21, flows through the radiator 20, and flows into the engine 10 again.

  The first pipe 41 is a pipe that supplies, to the engine 10, the heat transfer medium warmed by the heat stored in the heat storage unit 13 in the first mode. The first pipe 41 is a pipe that connects the heat storage unit 13 and the engine 10. Specifically, the first pipe 41 includes a pipe 51 that connects the heat storage section 13 and the heater section 14, a pipe 57 that connects the heater section 14 and the valve 432, a pipe 58 that connects the valve 432 and the pipe 55, And a pipe 55.

  The second pipe 42 is a pipe that supplies the heat storage medium 13 with a heat transfer medium heated by the heat generated by the engine 10 in the second mode. The second pipe 42 is a pipe that connects the engine 10 and the heat storage unit 13. Specifically, the second pipe 42 includes a pipe 54, a pipe 59 that connects the pipe 54 and the valve 431, a pipe 60 that connects the valve 431 and the valve 432, and a pipe 57 that connects the valve 432 and the heater unit 14. And the piping 51 which connects the heater part 14 and the thermal storage part 13 is provided.

  The valve 431 and the valve 441 are connected by a pipe 61. The valve 441 and the recovery unit 12 are connected by a pipe 62. The valve 441 and the pipe 55 are connected by a pipe 63.

  The first switching unit 43 supplies the heat transfer medium heated by the heat stored in the heat storage unit 13 to the engine 10 in the first mode, and the heat transfer medium heated by the engine 10 in the second mode is a heater. It has a function of supplying the heat storage medium 13 with the heat transfer medium supplied to the unit 14 and subjected to heat exchange in the heater unit 14.

  The second switching unit 44 has a function of supplying the heat of the heat transfer medium heated by the heat generated by the engine 10 to the recovery unit 12 in the first mode. The second switching unit 44 has a function of supplying heat of the heat transfer medium heated by the exhaust heat recovered by the recovery unit 12 to the engine 10 in the second mode.

[Mode switching operation by control unit 30]
The control unit 30 causes the heat transfer medium to flow in the first direction so that the heat stored in the heat storage unit 13 is used for warming up the engine 10, and the heat transfer medium is in a direction opposite to the first direction. Is switched to the second mode in which heat generated by the engine 10 is stored in the heat storage unit 13.

  Specifically, the control unit 30 operates the first switching unit 43 and the second switching unit 44. As shown in FIG. 3, in the first mode, the control unit 30 operates the first switching unit 43 and the second switching unit 44 to supply the heat transfer medium from the heat storage unit 13 to the engine 10. Thus, the engine 10 is warmed up. Further, as shown in FIG. 4, in the second mode, the control unit 30 supplies the heat transfer medium from the engine 10 to the heat storage unit 13 by operating the first switching unit 43 and the second switching unit 44. By doing so, the heat storage unit 13 is stored.

  In addition, you may make it the thermal control apparatus 1a have the valve | bulb 15 and the bypass passage 16a similarly to the thermal control apparatus 1 which concerns on 1st Embodiment. Specifically, the valve 15 is provided in the pipe 51, and the bypass passage 16 a is a pipe that connects the valve 15 and the pipe 57. Then, the control unit 30 operates the valve 15 so that the heat transfer medium flows through the bypass passage 16 a and does not flow through the heater unit 14. As a result, similarly to the heat control device 1, the heat control device 1a, for example, in the first mode, uses the heat transfer medium flowing from the heat storage portion 13 to increase the temperature in the passenger compartment by the heater portion 14, or The engine 10 can be preferentially warmed up without passing through the heater section 14.

  Similarly to the heat control device 1, the heat control device 1 a uses the heat transfer medium flowing from the engine 10 in the second mode, for example, to increase the temperature in the vehicle compartment by the heater portion 14, or the heater portion It is possible to switch whether or not the heat storage unit 13 is preferentially stored without using 14.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment, A various deformation | transformation and change are possible within the range of the summary. is there. For example, the specific embodiments of device distribution / integration are not limited to the above-described embodiments, and all or a part of them may be configured to be functionally or physically distributed / integrated in arbitrary units. Can do. In addition, new embodiments generated by any combination of a plurality of embodiments are also included in the embodiments of the present invention. The effect of the new embodiment produced by the combination has the effect of the original embodiment. For example, in the above description, the case where the moving body is a vehicle has been described. However, the moving body is not limited to a vehicle, and the present invention can also be applied to other moving bodies such as aircraft, ships, and trains. . Moreover, the moving body according to the present invention does not necessarily have a function of moving, and may be any device having an internal combustion engine.

DESCRIPTION OF SYMBOLS 1, 1a ... Thermal control apparatus 10 ... Engine 11 ... Exhaust pipe 12 ... Recovery part 13 ... Heat storage part 14 ... Heater part 15 ... Valve 16, 16a ... Bypass Passage 20 ... Radiator 21 ... Thermostat 22 ... Pump 30 ... Control part 41 ... First pipe 42 ... Second pipe 43 ... First switching part 431 ... Valve 432 ... Valve 44 ... Second switching part 441 ... Valves 51-63 ... Piping

Claims (5)

An engine for driving the moving body;
A heat storage section for storing heat generated in the moving body;
A first mode in which the heat stored in the heat storage unit is used to warm up the engine by flowing a heat transfer medium in a first direction;
A control unit that switches between a second mode in which heat generated by the engine is stored in the heat storage unit by flowing the heat transfer medium in a direction opposite to the first direction;
A thermal control device comprising: In the first mode, the heat transfer medium heated by the heat stored in the heat storage unit is supplied to the engine, and in the second mode, the heat transfer medium heated by the heat generated by the engine is It further has a pump capable of switching the direction in which the heat transfer medium flows so as to be supplied to the heat storage unit,
The thermal control device according to claim 1. In the first mode, a first pipe for supplying the heat transfer medium heated by the heat stored in the heat storage unit to the engine;
In the second mode, a second pipe for supplying the heat transfer medium heated by the heat generated by the engine to the heat storage unit;
Further comprising:
The thermal control device according to claim 1. A heater unit for raising the temperature in the room of the moving body;
In the first mode, the heat transfer medium warmed by the heat stored in the heat storage section is supplied to the engine, and in the second mode, the heat transfer medium is transferred to the heat storage section without passing through the heater section. A first switching unit for supplying to
Further comprising:
The thermal control apparatus according to claim 3. Having a heater part for raising the temperature in the room of the moving body;
In the first mode, the control unit supplies the heat transfer medium heated by the heat stored in the heat storage unit to the engine without passing through the heater unit from the heat storage unit, and in the second mode. The heat transfer medium heated by the heat generated by the engine is controlled to be supplied to the heat storage unit through the heater unit.
The thermal control apparatus as described in any one of Claim 1 to 4.

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