Search

CN-121989665-A - Cooling system and vehicle

CN121989665ACN 121989665 ACN121989665 ACN 121989665ACN-121989665-A

Abstract

A cooling system for cooling water includes a radiator having a core portion that virtually divides a region in a flow direction in which the cooling water flows, a fan portion, a damper portion, a temperature sensor capable of detecting a temperature of the cooling water, and a control portion capable of controlling a1 st fan and a2 nd fan of the fan portion and controlling a1 st damper and a2 nd damper of the damper portion, respectively, independently. The control unit is capable of switching between a1 st mode in which the 1 st damper is opened to rotate the 1 st fan when the detected temperature is within the 1 st temperature and a2 nd mode in which the 1 st and2 nd fans are rotated in a state in which the 1 st and2 nd dampers are opened when the detected temperature is within the 2 nd temperature.

Inventors

  • Xiang Yuanqi

Assignees

  • 五十铃自动车株式会社

Dates

Publication Date
20260508
Application Date
20251106
Priority Date
20241106

Claims (5)

  1. 1. A cooling system for cooling water, comprising: A radiator having a core portion in which a 1 st region is located on a side closer to an upstream side of an inlet for cooling water passing through a heat source, a 2 nd region is located on a side closer to a downstream side of an outlet for the cooling water than the upstream side, and the regions are virtually divided in a flow direction of the cooling water so that air passes from a front surface side to a rear surface side; A fan unit having a 1 st fan facing the 1 st area and a2 nd fan facing the 2 nd area on the back surface side of the core; A damper unit having a1 st damper facing the 1 st area and openable and closable with respect to the 1 st area and a 2 nd damper facing the 2 nd area and openable and closable with respect to the 2 nd area, on the front surface side, the back surface side, or the rear side of the fan unit of the core; a fan shroud that surrounds an outer periphery of the 1 st fan and an outer periphery of the 2 nd fan on the back surface side of the core, respectively, and that divides the 1 st area and the 2 nd area on the back surface side of the core; a 1 st temperature sensor capable of detecting a temperature of the cooling water as a 1 st detection temperature at a predetermined position on the outlet side of the cooling water, and A control unit configured to control the 1 st fan and the 2 nd fan of the fan unit independently based on the 1 st detected temperature detected by the 1 st temperature sensor, and to control the 1 st damper and the 2 nd damper of the damper unit independently, The control section is capable of switching to a1 st mode and a2 nd mode, In the 1 st mode, when the 1 st detected temperature is within the 1 st temperature, the 1 st fan is rotated in a state in which the 1 st damper is opened and the 2 nd damper is closed, the rotation of the 2 nd fan is stopped, In the 2 nd mode, when the 1 st detected temperature is within the 2 nd temperature exceeding the 1 st temperature, the 1 st fan and the 2 nd fan are rotated in a state where the 1 st damper and the 2 nd damper are opened.
  2. 2. The cooling system of claim 1, wherein, The fan shroud has: A cylindrical 1 st barrel portion surrounding an outer periphery of the 1 st fan and extending to or near an outer edge of the back surface of the 1 st region of the core, and A tubular 2 nd barrel portion that surrounds an outer periphery of the 2 nd fan and extends to an outer edge of the rear surface of the 2 nd region of the core or a vicinity thereof, and that prevents a flow of air between the rear surface of the core and the 1 st barrel portion.
  3. 3. The cooling system according to claim 1 or 2, wherein, In the 2 nd mode, the rotational speed of the 1 st fan is the same as the rotational speed of the 2 nd fan or greater than the rotational speed of the 2 nd fan.
  4. 4. The cooling system according to claim 1 or 2, wherein, A 2 nd temperature sensor capable of detecting a temperature of the cooling water as a 2 nd detection temperature at a predetermined position on the inlet side of the cooling water of the radiator, The control unit is capable of switching to the 1 st mode when the 1 st detected temperature is within the 1 st temperature and a difference between the 1 st detected temperature and the 2 nd detected temperature is within a predetermined temperature range, The mode may be switched to the 2 nd mode when the 1 st detected temperature is within the 1 st temperature and a difference between the 1 st detected temperature and the 2 nd detected temperature is greater than the predetermined temperature range.
  5. 5. A vehicle, having: The cooling system of claim 1 or 2; A grill as an air intake port provided in a front portion of the vehicle, for taking in the air toward the core of the radiator when the vehicle is running, and The heat source is disposed on the rear side of the cooling device.

Description

Cooling system and vehicle Technical Field The present invention relates to a cooling system and a vehicle. Background For example, japanese patent application laid-open No. 2018-043554 discloses a cooling device for cooling water, in which a plurality of fans are disposed on the rear side of a radiator, and the plurality of fans are rotated simultaneously to forcibly cool a suitably wide area of the core portion (radiator core) of the radiator, thereby cooling the cooling water (coolant). In the case of using a cooling system in which a plurality of fans are rotated at the same rotational speed, there are cases where a rotational speed difference and a wind speed difference occur between the fans. Such fans are arranged in the direction of flow of the cooling water toward the core at the rear side of the core of the radiator, and if a difference in rotational speed and a difference in wind speed occurs when the fans are rotated, air tends to flow from the side where the pressure is high to the side where the pressure is low. In this case, the rotation of the plurality of fans may prevent the flow of the forced cooling air passing through the core, and the cooling efficiency of the cooling water of the cooling device may be lowered. Disclosure of Invention The present invention provides a cooling water cooling system capable of improving cooling efficiency of cooling water flowing through a core of a radiator, and a vehicle having the cooling system. A cooling system for cooling water according to one aspect of the present invention includes a radiator having a core portion having a 1 st region on an upstream side of an inlet for cooling water passing through a heat source, a2 nd region on a downstream side of an outlet for cooling water from the upstream side, the region being virtually divided in a flow direction of the cooling water, and air being passed from a front surface side to a rear surface side, a fan portion having a 1 st fan opposed to the 1 st region and a2 nd fan opposed to the 2 nd region on the rear surface side of the core portion, a damper portion having a 1 st damper opposed to the 1 st region and openable with respect to the 1 st region and a2 nd damper opposed to the 2 nd region and openable with respect to the 2 nd region, a temperature sensor capable of detecting a temperature of the 1 st fan and the 2 nd fan on a rear side of the core portion, and a temperature sensor capable of detecting a temperature of the 1 st fan and a temperature of the 1 st fan independently, and a temperature sensor capable of detecting a temperature of the 1 st fan and a2 nd sensor independently of the temperature sensor. The control unit is capable of switching between a 1 st mode and a2 nd mode, wherein in the 1 st mode, when the 1 st detected temperature is within the 1 st temperature, the 1 st fan is rotated in a state in which the 1 st damper is opened and the 2 nd damper is closed, and the 2 nd fan is stopped from rotating, and in the 2 nd mode, when the 1 st detected temperature is within the 2 nd temperature exceeding the 1 st temperature, the 1 st fan and the 2 nd fan are rotated in a state in which the 1 st damper and the 2 nd damper are opened. According to the present invention, it is possible to provide a cooling water cooling device capable of improving cooling efficiency of cooling water flowing through a core of a radiator, and a vehicle having the cooling device. Drawings Fig. 1 is a schematic view showing a part of a front portion of a vehicle according to embodiment 1. Fig. 2 is a schematic view showing the cooling device as viewed from the direction along line II-II in fig. 1. Fig. 3 is a schematic block diagram of cooling of a heat source of the vehicle according to embodiment 1. Fig. 4 is a flowchart of a cooling process of cooling water using the cooling device according to embodiment 1. Fig. 5 is a schematic block diagram of cooling of a heat source of a vehicle according to modification 1 of embodiment 1. Fig. 6 is a flowchart of a cooling process with respect to cooling water using the cooling device shown in fig. 5. Fig. 7 is a schematic view showing a part of the front portion of the vehicle according to modification 2 of embodiment 1. Fig. 8 is a schematic diagram showing a part of the front portion of the vehicle according to embodiment 2. Fig. 9 is a schematic diagram showing a part of the front portion of the vehicle according to embodiment 3. Fig. 10 is a schematic view showing a part of the front portion of the vehicle according to embodiment 4. Detailed Description The vehicle 10 is described with reference to the drawings, and the vehicle 10 includes a cooling system 22 that cools cooling water (coolant) passing through the heat source 12. (Embodiment 1) With reference to fig. 1 to 4, a vehicle 10 including a cooling system 22 including cooling water (coolant) according to embodiment 1 will be described. Fig. 1 is a schematic diagram showing a part of a front portion of a