CN-122003334-A - Cooling device and thermal management system

Abstract

Provided is a cooling device or the like capable of coping with a complication of a flow path of a heat medium and achieving a compact structure. The cooling device is provided with a case (1) which forms flow paths (C1-C5) through which a heat medium flows, a four-way valve (70) and an eight-way valve (71) which are multi-way valves, the case (1) being provided with a flow path for the heat medium in the flow paths (C1-C5) being switched by rotation of a valve rotation shaft of the four-way valve, a first pump (3 a), a second pump (3 b) and a third pump (3C) being provided in the case (1), the heat medium being pumped in the flow paths (C1-C5), the first pump (3 a) being provided on a first case side (1 a) facing one side in a width direction (D1) intersecting the rotation axis of the multi-way valves (70, 71), the second pump (3 b) being provided on a second case side (1 b) facing the other side in the width direction (D1), and the third pump (3C) being provided in parallel to the first pump (3 a) in a height direction (D3) intersecting the width direction (D1).

Inventors

• YAMAGUCHI YUSUKE
• SHIMIZU NOBUHIRO
• Nei Menyan
• IINO YASUYUKI

Assignees

• 三电株式会社

Dates

Publication Date

20260508

Application Date

20240913

Priority Date

20231023

Claims (7)

1. 1. A cooling device provided in a vehicle for performing temperature adjustment of in-vehicle equipment and/or air conditioning in the vehicle, The cooling device is provided with: A case forming a flow path through which the first heat medium flows; a multi-way valve provided in the case and switching a flow path of the first heat medium in the flow path by rotation of a valve rotation shaft thereof, and A first pump, a second pump, and a third pump provided in the case, and configured to press-feed the first heat medium in the flow path, The first pump is provided on a first tank side surface facing one side in a width direction of the tank (hereinafter, tank width direction) intersecting with a rotation axis of the valve rotation shaft, The second pump is arranged on the side surface of the second box body facing the other side of the width direction of the box body, The third pump is provided in parallel with the first pump in a tank height direction intersecting the tank width direction in the first tank side surface.
2. 2. The cooling device according to claim 1, wherein, The multi-way valve is provided on a surface facing a direction intersecting the widthwise direction of the tank.
3. 3. The cooling device according to claim 1 or 2, wherein, The multi-way valve is a valve having five or more ports through which the first heat medium flows into or out of itself.
4. 4. The cooling device according to claim 2, wherein, As the multi-way valve, there are provided a valve having less than five valve ports into or out of the first heat medium with respect to itself (hereinafter, first multi-way valve) and a valve having five or more valve ports into or out of the first heat medium with respect to itself (hereinafter, second multi-way valve), The rotation axis of one of the first multi-way valve and the second multi-way valve extends in the tank height direction, and the rotation axis of the other of the first multi-way valve and the second multi-way valve extends in a tank depth direction intersecting the tank width direction and the tank height direction.
5. 5. The cooling device according to claim 4, wherein, One of the first multi-way valve and the second multi-way valve is provided on a surface facing the height direction of the tank, and the other of the first multi-way valve and the second multi-way valve is provided on a surface facing the depth direction of the tank.
6. 6. A thermal management system, wherein, The thermal management system is provided with: a heat medium circuit constituted by the cooling device according to claim 1 or 2, for performing temperature adjustment of the in-vehicle apparatus, and A refrigerant circuit connected to the heat medium circuit and composed of a compressor, a condenser, a pressure reducing device and an evaporator for circulating a second heat medium, The heat medium circuit has: A high-temperature side heat medium circuit unit through which the first heat medium, which exchanges heat with the second heat medium in the condenser, flows; a low-temperature side heat medium circuit part through which the first heat medium exchanging heat with the second heat medium flows in the evaporator, and A vehicle-mounted device temperature adjustment heat medium circuit unit through which the first heat medium after heat exchange with the vehicle-mounted device flows, The high temperature side heat medium circuit portion has the first pump, The low-temperature side heat medium circuit portion has the second pump, The in-vehicle apparatus temperature adjustment heat medium circuit portion has the third pump.
7. 7. The thermal management system of claim 6, wherein, The heat medium circuit further has: The motor passes through the loop part and the motor, and A radiator loop part for passing through the radiator of the vehicle, The multi-way valve is connected to a pair of pipes of the low-temperature side heat medium circuit portion, a pair of pipes of the in-vehicle device temperature adjustment heat medium circuit portion, a pair of pipes of the motor passage circuit portion, and a pair of pipes of the radiator circuit portion.

Description

Cooling device and thermal management system Technical Field The present invention relates to a cooling device mounted on a vehicle and a thermal management system including the cooling device. Background Conventionally, a thermal management system is known that comprehensively adjusts the temperature of a vehicle-mounted device such as a battery and a motor and adjusts the air in a vehicle. Such a thermal management system includes a heat medium circuit through which a heat medium flows, and a multi-way valve, a pump, and the like constituting the heat medium circuit are modularized cooling devices provided in one tank (for example, patent document 1). Prior art literature Patent literature Patent document 1 U.S. patent application publication No. 2023/0065082 specification Disclosure of Invention Problems to be solved by the invention However, in the prior art, not only cannot air-condition by exhaust heat from an engine but also the number of in-vehicle devices to be temperature-conditioned increases due to the popularization of hybrid vehicles and electric vehicles, and as a result, the flow path of the heat medium becomes complicated, the size of the multi-way valve becomes large, the number of pumps becomes large, and the entire cooling device becomes large. Accordingly, the present invention provides a cooling device and a thermal management system that can cope with the complexity of the flow path of a heat medium and can be made compact. Means for solving the problems A cooling device according to an aspect of the present invention is provided in a vehicle and performs temperature control of an in-vehicle device and/or air conditioning in the vehicle, and includes a case that forms a flow path through which a first heat medium flows, a multi-way valve provided in the case and switching a flow path of the first heat medium in the flow path by rotation of a valve rotation shaft of the multi-way valve, and first, second, and third pumps provided in the case, the first heat medium being pumped in the flow path, the first pump being provided on a first case side surface facing one side in a width direction (case width direction) of the case intersecting a rotation axis of the valve rotation shaft, the second pump being provided on a second case side surface facing the other side in the case width direction, and the third pump being provided in parallel with the first pump in the case height direction intersecting the case width direction in the first case side surface. In the above cooling device, the multi-way valve may be provided on a surface facing a direction intersecting the widthwise direction of the tank. In the above-described cooling device, the multi-way valve may have five or more ports through which the first heat medium flows into or out of the valve. In the cooling device, as the multi-way valve, a valve having less than five ports for flowing in or out the first heat medium to itself (hereinafter, a first multi-way valve) and a valve having five or more ports for flowing in or out the first heat medium to itself (hereinafter, a second multi-way valve) may be provided, wherein the rotation axis of one of the first multi-way valve and the second multi-way valve extends in the tank height direction, and the rotation axis of the other of the first multi-way valve and the second multi-way valve extends in the tank depth direction intersecting the tank width direction and the tank height direction. In the above cooling device, one of the first multi-way valve and the second multi-way valve may be provided on a surface facing the height direction of the tank, and the other of the first multi-way valve and the second multi-way valve may be provided on a surface facing the depth direction of the tank. A heat management system according to an aspect of the present invention includes a heat medium circuit configured by the cooling device to regulate a temperature of the in-vehicle apparatus, and a refrigerant circuit connected to the heat medium circuit and configured by a compressor, a condenser, a pressure reducing device, and an evaporator, wherein the heat medium circuit includes a high-temperature side heat medium circuit portion configured to circulate the first heat medium that exchanges heat with the second heat medium in the condenser, a low-temperature side heat medium circuit portion configured to circulate the first heat medium that exchanges heat with the second heat medium in the evaporator, and an in-vehicle apparatus temperature regulation heat medium circuit portion configured to circulate the first heat medium that exchanges heat with the in-vehicle apparatus, the high-temperature side heat medium circuit portion includes the first pump, the low-temperature side heat medium circuit portion includes the second pump, and the in-vehicle apparatus temperature regulation heat medium circuit portion includes the third pump. In the above-described thermal management system, the heat medi