KR20040011865A - Radiator cleaner - Google Patents

Abstract

PURPOSE: A radiator cleaning apparatus is provided to achieve improved cooling efficiency of radiator and to easily control the apparatus. CONSTITUTION: A radiator cleaning apparatus comprises a mode selection unit(1) for selecting a travel mode or a cleaning mode; a coolant temperature sensor(2) for sensing the temperature of the coolant; a vehicle speed sensor(3) for sensing the travel speed of the vehicle; an ECU(4) for outputting a control signal for controlling operation of a cooling fan in accordance with the mode selected by the mode selection unit and information input from the coolant temperature sensor and the vehicle speed sensor; a cooling fan driving unit(20) for rotating, in a forward direction, the cooling fan in a travel mode and rotating, in a reverse direction, the cooling fan in a cleaning mode; a fan blade angle control unit(30) for controlling angle of a fan blade(9) such that the air blows at the optimum condition during the forward and reverse rotation of the cooling fan; a plurality of guides(41) interposed between the radiator and the cooling fan; and a flow control unit(40) for permitting the guides to be arranged into a nozzle shape during the cleaning mode so that the air supplied from the cooling fan is concentrated on a cooling fin(6) so as to perform a cleaning operation.

Description

Radiator cleaner {Radiator cleaner}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiator cleaning apparatus, and more particularly, to a radiator cleaning apparatus that effectively removes contaminants caught between cooling fins of a radiator, thereby improving cooling efficiency of a radiator and allowing an operator to easily control the driver's seat.

The vehicle is provided with a radiator for circulating the engine and cooling the discharged coolant at the front end of the engine room, and a cooling fan for improving the cooling efficiency of the radiator is installed at the rear end of the radiator.

In the radiator, fine cooling fins are formed to surround the conduit so that the contact area between the conduit through which the coolant passes and the air is enlarged to maximize the cooling efficiency of the coolant.

In other words, if enough air is supplied between the cooling fins, the cooling water can be effectively cooled even with a small radiator.

However, when the vehicle runs, various pollutants are introduced to the radiator side along with the running wind, and are accumulated between the cooling fins, thereby decreasing the cooling efficiency of the radiator.

Accordingly, as a conventional cleaning apparatus for cleaning the contaminants accumulated in the radiator, a technique for removing contaminants accumulated in the radiator by high pressure injection of a fluid such as water from the rear of the radiator has been provided.

However, the conventional cleaning device has a problem in that it is subject to spatial constraints in the engine room layout because a reservoir for storing a certain amount of fluid must be installed in the engine room for the high pressure injection of the fluid, and the fluid is injected at a high pressure in the vehicle. There is a limit to the problem that the effective removal of the contaminants trapped in the radiator was not occurring.

Accordingly, the present invention for solving the above problems is to form a plurality of guides for the wind direction control between the radiator and the cooling fan, and the fan blades to forward and reverse rotation at the same time depending on the driving mode or cleaning mode selection at the same time In the cleaning mode, the guides are transformed into nozzle shapes, so that the wind supplied by the reverse rotation of the cooling fan is concentrated by the guides to the cooling fins of the radiator, thereby removing foreign substances caught between the cooling fins. The purpose of the present invention is to provide a radiator cleaning device that improves the cooling efficiency of the radiator and allows the operator to easily control it from the driver's seat.

The present invention for achieving the above object,

Radiator having a cooling fin for heat dissipation of the cooling water, a cooling fan in which a plurality of fan blades are installed on the outer periphery of the fan shaft for cooling the radiator, and a shroud that seals between the radiator and the cooling fan In

A mode selection unit for selecting a driving mode or a washing mode;

A water temperature sensor for sensing the temperature of the cooling water;

A vehicle speed sensor for detecting a driving speed of the vehicle;

An ECU for outputting a control signal for controlling forward and reverse rotation of the cooling fan and control of the wind direction according to the operation mode selected by the mode selection unit operation and the sensing information input from each sensor;

Cooling fan driving means for rotating the cooling fan forward in the running mode and rotating the cooling fan in the cleaning mode;

Fan blade angle adjusting means for adjusting the angle of the fan blade so that the wind is generated in the optimal state during the forward and reverse rotation of the cooling fan;

A plurality of guides installed between the radiator and the cooling fan to enable left and right rotation to adjust a wind direction by driving a cooling fan;

Wind direction control means for directing the guides in the running mode and for guiding the nozzles in the cleaning mode so that the wind supplied from the cooling fan is concentrated on the cooling fins of the radiator; Characterized in that configured to include.

1 is a view showing a radiator cleaning device of the present invention.

2 is a view showing an operating state of the present invention.

3 is a flow chart showing a control process of the present invention.

※ Explanation of code for main part of drawing

1: Mode selector 2: Water temperature sensor

3: vehicle speed sensor 4: ECU

5: radiator 8: cooling fan

11: drive motor 20: cooling fan drive means

30: fan blade angle adjusting means 32: position gear

33: ring gear 34,44,47: step motor

40: wind direction control means 41: guide

42,43: Operating rod 45,48: Drive gear

46,49: Actuated gear

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, FIGS. 1 to 3.

Reference numeral 5 denotes a radiator for cooling the cooling water, and the radiator 5 is provided with cooling fins 6 for improving the cooling efficiency, and the radiator 5 is rotated to the rear end of the radiator 5. A cooling fan 8 is installed to accelerate the flow of the air passing therethrough to promote the cooling efficiency, and a shroud 7 is formed between the radiator 5 and the cooling fan 8.

In the present invention, as a device for cleaning the radiator 5, the cooling fan driving means 20, the fan blade angle adjusting means 30, the wind direction control means 40, and for controlling the function of each component Control means are configured.

The control means includes a mode selection unit 1 installed around the driver's seat for selecting the driving mode or the cleaning mode, a water temperature sensor 2 for detecting the temperature of the coolant, and a vehicle speed sensor 3 for detecting the traveling speed of the vehicle. And a control signal for controlling the forward and reverse rotation of the cooling fan 8 and the control of the wind direction according to the operation mode selected by the operation of the mode selection unit 1 and the sensing information input from the respective sensors 2 and 3. It consists of the ECU 4 which outputs.

The cooling fan drive means 20 is installed in the fan shaft 10 of the cooling fan (8) vertically so that the fan shaft 10 is rotated forward and backward together with the rotation shaft of the drive motor 11, The drive motor 11 is configured to be controlled by the control voltage output from the fan driver 12 to drive in accordance with the control signal output from the ECU (4).

The fan blade angle adjusting means 30 adjusts the installation angle of the fan blade 9 to an optimal position such that a strong wind is generated according to the rotation direction when the cooling fan 8 rotates forward and backward. The shaft 30 of (9) is inserted into the side of the fan shaft 10, the circular position gear 32 for the angle setting of the fan blade (9) is formed at the end of the shaft (30).

The ring gear 33 is formed at the lower end of the fan shaft 10 by rotating the position gear 32 while being engaged with the respective position gears 32, and at the center of the ring gear 33. The first step motor 34 is supported, but the first step motor 34 is configured to be controlled to forward and reverse rotation by the control of the blade angle controller 35 that is driven according to the control signal of the ECU 4.

On the other hand, the wind direction control means 40 is installed between the radiator 5 and the cooling fan 8 to allow the left and right rotation of the plurality of guides 41, the first operating rod on the lower end of each guide 41 Hinge coupling between the 42 and the second operating rod 43 so that the installation angle of the guide 41 in accordance with the forward and backward movement of the operating rod (42, 43).

The second and third step motors 44, which are engaged to engage the operating gears 46 and 49 at the ends of the first and second operating rods 42 and 43, respectively, and which rotate forward and reverse under the control of the ECU 4; The mounting direction of the guide 41 is changed in accordance with the rotational direction of the first and third step motors 44 and 47 by allowing the driving gears 45 and 48 of the 47 to be engaged with the operating gears 46 and 49. It is configured to be.

Referring to the operation of the present invention configured as described above is as follows.

Since the operation of the present invention is divided into a driving mode and a cleaning mode according to the operation of the mode selector 1 of the driver, each operation mode will be described as follows.

◆ Driving Mode ◆

When the driver selects the driving mode by operating the mode selector 1 to drive the vehicle, the ECU 4 controls and guides the second step motor 44 and the third step motor 47 to the reference positions. As shown in FIG. 1, the fan blades 9 coupled to the fan shaft 10 are controlled by the fan shaft 10 so that the first step motor 34 is in the correct position. At the forward rotation, it should be set at an angle that can cause strong wind in the same direction as the driving wind.

That is, when the first step motor 34 is rotated forward, the ring gear 33 on which the first step motor 34 is axially rotates forward and rotates the respective position gears 32 in the forward direction, respectively. Fan blades 9 are set at forward rotation angles, and the drive gears 45 and 48 are rotated by returning the reference positions of the second and third step motors 44 and 47. As the operating gears 46 and 49 engaged with the 45 and 48 rotate by an angle, the guides 41 are aligned as the first and second operating rods 42 and 43 are pushed or pulled.

As described above, the fan drive unit 12 rotates the driving motor 11 forward according to the control signal of the ECU 4 in a state in which the fan blades 9 and the guides 41 are aligned. Since the fan shaft 10 rotates at a high speed in the forward direction, wind is generated in the same direction as the driving wind, thereby effectively cooling the radiator.

◆ Cleaning Mode ◆

If the driver operates the mode selector 1 to clean the radiator 5 and selects the cleaning mode while the vehicle is stopped, the ECU 4 sets the fan blade 9 to the reverse rotation angle. The first step motor 34 is rotated in reverse.

As the first step motor 34 rotates in reverse, the ring gear 33 also rotates the position gears 32 while rotating in reverse, so that each fan blade 9 is optimal when the cooling fan 8 rotates in reverse. It is set at an angle that can cause wind.

In addition, the ECU 4 rotates the second and third step motors 44 and 47 in the forward direction (formation direction on the drawing) in order for the guides 41 to be changed into nozzle shapes.

When the second step motor 44 is rotated forward, the first operation rod 42 is pulled (rightward in the drawing) while the operating gear 46 engaged with the drive gear 45 is reversely rotated. The lower side of the guides 41 hinged to the rod 42 is rotated to the right,

When the third step motor 47 is rotated forward, the second operation rod 43 moves forward (left direction in the drawing) while the operating gear 49 engaged with the drive gear 48 rotates in reverse. As the lower side of the guides 41 hinged to the operating rod 43 rotates to the left side, as shown in FIG. 2, the radiator 5 side of the pair of guides 41 is narrowed, that is, Nozzle shape is to be achieved.

In this state, when the driving motor 11 is reversely rotated by the control of the ECU 4, the fan shaft 10 is reversely rotated together with the driving motor 11, so that the fan coupled to the fan shaft 10 is rotated. As the blade 9 rotates in reverse, a strong wind is generated toward the radiator 5.

The strong wind generated from the fan blades 9 is supplied to the radiator 5 through the guide 41. At this time, the wind passing through the guide 41 is very fast because the guide 41 is shaped like a nozzle. As the strong wind is concentrated between the cooling fins 6 of the radiator 5, the contaminants accumulated between the cooling fins 6 are removed by the strong winds.

Meanwhile, in the cleaning mode, the ECU 4 causes the second and third step motors 44 and 47 to be rotated forward and backward at regular intervals while having opposite phases to each other so that the wind blown from the cooling fan 8 is reduced by the radiator 5. It can be supplied evenly over the whole area.

That is, as the second step motor 44 and the third step motor 47 are installed at positions opposite to each other on both sides of the first operating rod 42 and the second operating rod 43, the second and third steps are provided. When the rotational phase of the motors 44 and 47 is reversed with each other, the forward and reverse rotations are performed at regular intervals. As the first and second operating rods 42 and 43 move forward or pull in the same direction, the guides 41 are alternately directed to the left and right sides of the radiator 5 so that the strong wind supplied from the cooling fan 8 is evenly supplied to the entire area of the radiator 5 to remove contaminants.

If the coolant temperature detected by the water temperature sensor 2 is higher than the set temperature or the traveling speed of the vehicle detected by the vehicle speed sensor 3 is greater than '0' during the washing mode operation, the ECU 4 performs the washing mode. Stops and automatically switches to the driving mode so that the guides 41 are aligned in the forward direction and the fan blade 9 is set to the forward rotation angle. Then, the cooling fan 8 is rotated forward to cool the cooling water of the radiator 5. This is done normally.

As described above, the present invention forms a plurality of guides for controlling the wind direction between the radiator and the cooling fan, and allows the cooling fan to rotate forward and backward according to the selection of the driving mode or the cleaning mode, and at the same time the angle of the fan blade is variable. In the cleaning mode, the guides are transformed into nozzles so that the wind supplied by the reverse rotation of the cooling fan is concentrated on the cooling fins of the radiator by the guides so that foreign substances caught between the cooling fins are removed, thereby cooling the radiator. The efficiency can be improved and the effect of providing a radiator cleaning device that can be easily controlled by the driver can be expected.

Claims (8)

A radiator 5 having a cooling fin 6 for dissipating cooling water and a cooling fan 8 in which a plurality of fan blades 9 are installed at the outer circumference of the fan shaft 10 for cooling the radiator 5. ) And a shroud 7 for sealing between the radiator 5 and the cooling fan 8, A mode selector 1 for selecting a driving mode or a washing mode; A water temperature sensor 2 for sensing the temperature of the cooling water; A vehicle speed sensor 3 for detecting a traveling speed of the vehicle; ECU for outputting a control signal for controlling forward and reverse rotation of the cooling fan 8 and control of the wind direction according to the operation mode selected by the mode selection unit 1 and the sensing information input from the respective sensors 2 and 3. (4); Cooling fan driving means 20 for forward rotation of the cooling fan 8 in the running mode and reverse rotation of the cooling fan 8 in the cleaning mode; Fan blade angle adjusting means 30 for adjusting the angle of the fan blade 9 so that the wind is generated in the optimum state during the forward and reverse rotation of the cooling fan (8); A plurality of guides (41) installed between the radiator (5) and the cooling fan (8) to enable left and right rotation to adjust the wind direction by driving the cooling fan (8); In the running mode, the guide 41 is vertically aligned, and in the cleaning mode, the guide 41 is shaped like a nozzle so that the wind supplied from the cooling fan 8 is concentrated on the cooling fins 6 of the radiator 5. Wind direction control means 40 for cleaning; Radiator cleaning apparatus comprising a. The method of claim 1, The cooling fan drive means 20, Drive motor 11 is supported by the fan shaft 10 to rotate the fan shaft 10 forward and reverse, and the fan driver 12 for forward and reverse rotation of the drive motor 11 in accordance with the control signal of the ECU (4) Radiator cleaning apparatus, characterized in that configured. The method of claim 1, The fan blade angle adjusting means 30, The shaft 31 of the fan blade 9 is inserted into the fan shaft 10, and the position gear 32 is formed at the end of the shaft 31, and the respective position gears are located at the bottom of the fan shaft 10. Engaging with the (32) to install a ring gear 33 for forward and reverse rotation of the position gear 32, coupled to the center of the ring gear 33, the first step motor 34, The first step motor (34) is a radiator cleaning apparatus, characterized in that the forward and reverse rotation control by the control of the blade angle control unit 35 to drive in accordance with the control signal of the ECU (4). The method of claim 1, The wind direction control means 40, The first actuating rod 42 and the second actuating rod 43 are hinged to cross the lower end of each guide 41, and the actuating gear 46 at the ends of the first and second actuating rods 42, 43, respectively. And 49 are coupled to the operating gears, and drive gears 45 and 48 of the second and third step motors 44 and 47 which rotate forward and reverse under the control of the ECU 4 are connected to the operating gears 46 and 49. Radiator cleaning device, characterized in that the direction of the guide (41) is changed in accordance with the rotation direction of the second and third step motor (44,47) to be engaged. The method according to claim 1 or 4, The ECU 4 rotates the second and third step motors 44 and 47 forward in the cleaning mode so that the first actuating rod 42 is pulled out and the second actuating rod 43 is pushed out. Radiator side of the) radiator cleaning device, characterized in that the narrow nozzle shape. The method according to claim 1 or 4, In the cleaning mode, the ECU 4 causes the second and third step motors 44 and 47 to be reversely rotated at regular intervals while having the phases opposite to each other, such that the wind blowing from the cooling fins 8 is reduced. Radiator cleaning device, characterized in that evenly distributed over the entire area. The method of claim 1, The ECU 4 Radiator cleaning device, characterized in that when the coolant temperature detected by the water temperature sensor (2) during the cleaning mode is more than the set value stops the cleaning mode and automatically switch to the running mode. The method of claim 1, The ECU 4 Radiator cleaning device, characterized in that to stop the cleaning mode and switch to the driving mode when the running speed detected by the vehicle speed sensor (3) during the cleaning mode execution.