TWI394671B - Locomotive cooling device - Google Patents

Description

Locomotive heat sink

The invention relates to a heat dissipation device for a locomotive, in particular to a heat dissipation device suitable for an electronic control unit of a skating engine.

Please refer to FIG. 6 , which is a top view of the mounting position of the conventional electronic control unit of the skating engine of the skating engine. There is mainly an air intake system that provides a cooling fan system and a mixed fuel intake amount required to control the engine 92 . The fan system is composed of a cooling fan 91 and an air guiding cover 93. The two ends of the air guiding cover 93 respectively communicate with the engine 92 and the cooling fan 91. The cooling fan 91 can provide the engine 92 during operation through the air guiding cover 93. The amount of heat to be dissipated is required to control the temperature of the engine 92 within an appropriate operating temperature range.

The air intake system of the engine 92 is mainly composed of an air cleaner 97, an intake duct 95, and a throttle body 96. The throttle body 96 is integrated with an electronic control unit 94 (ECU: Electrical Control Unit) into a combination. Electronic control unit 94 calculates the amount of fuel required to operate with control engine 92. However, the engine 92 of the Scooter locomotive is placed in the area under the storage compartment (not shown), and there is no heat dissipation mechanism around it, and it is surrounded by the car body cover, which cannot convect heat dissipation, thus making the temperature higher in this area. The electronic control unit 94 is directly exposed to the high temperature environment, and is affected by the high temperature heat radiation and heat convection of the engine 92, so that the electronic control unit 94 operates in a more severe environment, and the electronic control unit 94 Mainly composed of electronic components, electronic components will be temperature The relatively high degree affects its performance, stability, and service life, which is not ideal.

In addition, the engine 92 is disposed in the lower area of the glove compartment of the seat cushion, and the high temperature heat radiation and heat convection generated by the engine 92 not only affect the electronic control unit 94, but also affect the temperature inside the glove compartment, resulting in the compartment. It is also not allowed to place consumer electronic products such as mobile phones that are not resistant to high temperatures, which is inconvenient for the rider and is not ideal. There is still room for improvement.

Because of this, in the spirit of active invention, this paper considers a heat sink for a locomotive that can solve the above problems, and finally completes the present invention after several research experiments.

The main object of the present invention is to provide a heat dissipating device for a locomotive, in particular to a heat dissipating device of an electronic control unit of a skating engine, which can guide a part of the airflow of the original cooling engine to the engine and the outside of the air hood. The area between the boxes is used to force airflow to dissipate heat from the electronic control unit, ensuring that the electronic control unit is functioning properly and increasing its useful life.

Another object of the present invention is to provide a heat dissipating device for a locomotive, and more particularly to a heat dissipating device for an electronic control unit of a skating engine, which can guide a part of the airflow of the original cooling engine to an engine outside the air hood. The area between the compartments is used to force the airflow to dissipate heat from the storage compartment, so that the items stored in the compartment can be free from temperature restrictions, thereby increasing the convenience of the rider.

In order to achieve the above object, the heat dissipating device of the present invention mainly comprises: an engine, a cooling fan, an air guiding hood, an electronic control unit, and an air guiding duct.

Wherein, the engine is disposed below a storage box, and the engine includes a cylinder head and a cylinder block. The cooling fan is used to provide a forced air flow, and the two ends of the air guiding hood are respectively connected to the cylinder head of the engine and the cooling fan. That is, the air hood forms an air guiding passage around the cylinder head of the engine and the cooling fan, and the air guiding passage includes an inlet corresponding to the cooling fan and an outlet corresponding to the cylinder head, and the air guiding hood has an opening hole.

In addition, the electronic control unit is used to control the fuel required for the engine to operate; and the air duct includes an air inlet and an air outlet, and the air inlet is connected to the opening of the air duct, and the air outlet is directed to the electronic control unit.

Thereby, the invention utilizes the design of the air duct, and can guide a part of the forced airflow to dissipate heat to the electronic control unit, ensure the normal operation of the electronic control unit, and increase the service life thereof.

In addition, the air inlet of the air duct can be forced to flow into the air duct through a blocking wall, and the air volume flowing into the air duct can be increased to increase the heat dissipation energy of the electronic control unit.

Furthermore, the retaining wall can extend from the wall of the air duct through the opening of the air guiding hood into the arc hood, and the arc angle can be between 90 and 180 degrees, and the other wall is blocked. The depth of the windshield can be between 0.1 and 1.0 cm, and the inner surface of the circular arc surface faces the windward surface of the wind passage, and the elastic guide can be changed by changing the distance between the angle of the arc angle and the depth. The amount of air intake.

Moreover, the above-mentioned retaining wall and the air guiding duct may be an integral structure, or may be a non-integrated structure, that is, the retaining wall and the air guiding duct may be fixedly combined with the two separate members.

In addition, the air outlet of the air guiding hood may be disposed adjacent to the electronic control unit or at a distance from the electronic control unit. The electronic control unit can be disposed between the engine and the storage compartment so that the forced airflow can simultaneously dissipate heat to the electronic control unit and the storage compartment.

In addition, the opening of the air guiding hood may be disposed adjacent to the cooling fan or may be disposed adjacent to the cylinder block of the engine, that is, the air inlet of the air guiding tube can elastically design the engaging position with the air guiding hood. As for the cooling fan, it may be a centrifugal cooling fan or another equivalent type of cooling fan.

Please refer to FIG. 1 and FIG. 2 , which are respectively a side view of a heat sink of a locomotive according to a preferred embodiment of the present invention, and a partial enlarged view of FIG. 1 . The embodiment relates to a heat dissipation device for a locomotive, comprising: an engine 20, a cooling fan 30, an air guiding cover 40, an electronic control unit 50, and an air guiding tube 60.

As shown in FIG. 1, the engine 20 is disposed below the seat cushion 15, the storage compartment 10, and the frame 77, and is located in front of the rear wheel 74 and the shock absorber 75. As shown in FIG. 2, the engine 20 includes a cylinder head 201 and a cylinder block 202. The outside atmosphere is first filtered through the air filter 70 and then communicated with the engine 20 via the intake duct 72. The power generated by the 20 drives the rear wheel 74 via the power transmission device in the crankcase 79.

The cooling fan 30 is provided on the side of the engine 20 and is connected by the air hood 40. That is, the two ends of the air hood 40 respectively communicate with the cylinder head 201 of the engine 20 and the cooling fan 30, and the air hood 40 An air guiding passage may be formed around the air guiding passage including an inlet corresponding to the cooling fan 30 and an outlet corresponding to the cylinder head 201, so that forced airflow can be used to forcibly dissipate the cylinder head 201 of the engine 20 and the cylinder block 202. And the air hood 40 has an opening 401 (shown in FIG. 5). In the embodiment, the cooling fan 30 is a centrifugal cooling fan 30, and the opening 401 of the air guiding cover 40 is adjacent to the cooling fan 30.

Please refer to FIG. 3 , FIG. 4 , and FIG. 5 , which are respectively a partially enlarged view of the air hood and the fan cover removed from FIG. 2 , a partially enlarged view of another view, and a locomotive according to a preferred embodiment of the present invention. A view from another perspective of the heat sink. The electronic control unit 50 for controlling the fuel required for the operation of the engine 20 is integrated with the throttle body 73 into a combination, and the intake air amount of the intake duct 72 is controlled via the electronic control unit 50. In the present embodiment, the electronic control unit 50 is disposed between the engine 20 and the storage compartment 10.

The air duct 60 includes an air inlet 61 and an air outlet 62. The air inlet 61 communicates with the opening 401 of the air guiding cover 40, and the air outlet 62 faces the electronic control unit 50. Therefore, in this embodiment, the forced airflow amount of the original heat dissipation engine 20 can be guided to a portion between the engine 20 and the storage box 10 outside the air hood 40 to force the airflow to dissipate heat to the electronic control unit 50, and ensure the electrons. Control unit 50 operates normally and increases its useful life. At the same time, the storage box 10 is also dissipated, so that the items stored in the storage box 10 can be free from temperature restrictions, thereby increasing the convenience of the rider.

In the present embodiment, the air inlet 61 of the air duct 60 guides a portion of the air duct 40 into the air duct 60 by a retaining wall 65, and the retaining wall 65 is integrated with the air duct 60. The structure. The retaining wall 65 extends from the wall of the air duct 60 through the opening 401 into the air guiding cover 40 to form a circular arc surface, and the arc angle is about 180 degrees, and the inner surface of the circular arc surface faces the guide. The windward side of the wind passage, the other retaining wall 65 and extending from the wall of the air duct 60 into the air hood 40 via the opening 401 is about 0.5 cm, thereby guiding the appropriate air volume to the electronic control unit 50, and The compartment 10 dissipates heat. Moreover, the air outlet 62 of the air duct 60 is adjacent to the electronic control unit 50, which can increase the heat dissipation function.

The above-mentioned embodiments are merely examples for convenience of description, and the scope of the claims is intended to be limited to the above embodiments.

10‧‧‧Storage box

15‧‧‧ Seat cushion

20‧‧‧ engine

201‧‧‧ cylinder head

202‧‧‧Cylinder block

30‧‧‧Cooling fan

40‧‧‧wind hood

401‧‧‧ openings

50‧‧‧Electronic Control Unit

60‧‧‧air duct

61‧‧‧air inlet

62‧‧‧air outlet

65‧‧ ‧ retaining wall

70‧‧‧Air filter

72‧‧‧Intake conduit

73‧‧‧ throttle body

74‧‧‧ Rear wheel

75‧‧‧ Shock absorbers

77‧‧‧ frame

79‧‧‧ crankcase

91‧‧‧Cooling fan

92‧‧‧ engine

93‧‧‧wind hood

94‧‧‧Electronic Control Unit

95‧‧‧ intake duct

96‧‧‧ throttle body

97‧‧‧Air filter

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a side elevational view of a heat sink for a locomotive in accordance with a preferred embodiment of the present invention.

Figure 2 is a partial enlarged view of Figure 1.

Figure 3 is a partial enlarged view of the air hood and the fan cover removed from Figure 2.

4 is a partial enlarged view of another view of the air hood and the fan cover removed from FIG.

Figure 5 is a top perspective view of a heat sink of a locomotive in accordance with a preferred embodiment of the present invention.

Figure 6 is a top view of the mounting position of a conventional locomotive engine electronic control unit.

20‧‧‧ engine

201‧‧‧ cylinder head

202‧‧‧Cylinder block

30‧‧‧Cooling fan

50‧‧‧Electronic Control Unit

60‧‧‧air duct

61‧‧‧air inlet

62‧‧‧air outlet

65‧‧ ‧ retaining wall

Claims (8)

A heat dissipation device for a locomotive includes: an engine disposed below a storage box, including a cylinder head and a cylinder block; a cooling fan for providing a forced air flow; and an air hood having two ends respectively Connecting the cylinder head and the cooling fan, and the air hood has an opening; an electronic control unit for controlling fuel required for the engine to operate; and an air guiding duct including an air inlet and an air outlet The air inlet is connected to the opening of the air hood, and the air outlet is directed toward the electronic control unit; wherein the air inlet of the air duct is guided by a blocking wall, and the forced airflow flows into the air inlet An air duct, the air outlet of the air duct is adjacent to the electronic control unit. The heat dissipation device for a locomotive according to the first aspect of the invention, wherein the barrier wall extends from the wall of the air duct through the opening into the arc hood, and the arc angle thereof Between 90 and 180 degrees. The heat dissipation device for a locomotive according to claim 1, wherein the barrier wall extends from the wall of the air duct into the air hood through the opening to a predetermined distance, which is between 0.1 and 1.0. Between the cents. The heat sink of the locomotive according to claim 1, wherein the retaining wall and the air duct are integrally formed. The heat sink of the locomotive of claim 1, wherein the opening of the air hood is adjacent to the cooling fan. The heat sink of the locomotive of claim 1, wherein the opening of the air hood is adjacent to the cylinder block. The heat sink of the locomotive of claim 1, wherein the electronic control unit is disposed between the engine and the storage compartment. The heat sink for a locomotive according to claim 1, wherein the cooling fan is a centrifugal cooling fan.