CN210212025U - Working vehicle - Google Patents

Abstract

The utility model relates to an operation vehicle, it can improve engine control unit's cooling performance. A work vehicle (1) according to an embodiment includes: an engine (E); an engine cover (3) that covers the engine (E) and forms an engine room (10); a radiator (21) that is vertically provided so as to separate the interior of the engine room (10) from the front and rear; and an engine control unit (100) that controls the engine (E), the engine control unit being disposed in either the left or right side of the interior of the engine room (10), and being disposed in a space on the opposite side of the engine (E) from the radiator (21) within the engine room (10).

Description

Working vehicle

Technical Field

The utility model relates to an operation vehicle.

Background

Conventionally, the following structure is known for a work vehicle such as a tractor: a partition plate that partitions the interior of an engine room that houses an engine from front to rear is provided on the outer peripheral portion of a radiator that is provided upright in the engine room, and an engine control unit is provided in front of the partition plate and above the radiator (see, for example, patent document 1).

Patent document 1: japanese patent laid-open No. 2012 and 201159

However, in the above-described present structure, since the engine control unit is present above the radiator where no cooling air flows or even if there is a cooling air flow, there is only a small amount of cooling air, the cooling performance of the engine control unit is degraded. In addition, in the case where a cover is provided to the engine control unit in order to prevent water from entering from above, the cooling performance of the engine control unit is further degraded.

SUMMERY OF THE UTILITY MODEL

The present invention has been made in view of the above problems, and an object of the present invention is to provide a work vehicle capable of improving cooling performance of an engine control unit.

In order to solve the above problems and achieve the object, a work vehicle according to claim 1 is characterized by comprising: an engine; an engine cover that covers the engine to form an engine room; a radiator that is erected to partition the interior of the engine room from front to back; and an engine control unit that controls the engine, the engine control unit being disposed in either one of left and right sides inside the engine room, and being disposed in a space on an opposite side of the engine room from the radiator.

The work vehicle according to claim 2 is characterized in that, in the work vehicle according to claim 1, the work vehicle includes an engine ECU bracket that supports the engine control unit, and the engine ECU bracket is provided upright on either of right and left sides in the engine compartment.

A work vehicle as set forth in claim 3 is characterized in that, in the work vehicle set forth in claim 2, the work vehicle has a condenser bracket supporting an air conditioner condenser, the condenser bracket is provided upright in front of the radiator, and the engine ECU bracket is provided upright on either of right and left sides of the air conditioner condenser supported by the condenser bracket.

The work vehicle according to claim 4 is characterized in that, in the work vehicle according to claim 3, the engine ECU bracket includes: a leg portion extending upward from a bottom plate forming a bottom surface of the engine room; and a fixing portion provided continuously upward from the leg portion, the engine control unit being attached to the fixing portion, and the fixing portion being fixed to the condenser bracket above the air conditioner condenser.

The work vehicle recited in claim 5 is characterized in that, in the work vehicle recited in claim 4, the engine control unit is disposed on a side of an upper portion of the air conditioner condenser, and is supported by the engine ECU bracket such that a connector portion faces downward.

The work vehicle according to claim 6 is characterized in that, in the work vehicle according to any one of claims 1 to 5, the engine control unit has a vent hole on a surface facing an inner side of the engine room, and the engine control unit further has a cover covering the vent hole.

According to the aspect of claim 1, since a large amount of cooling air flows inside the engine room and the engine control unit is disposed at a position where the engine control unit is less susceptible to thermal influence from the engine, the cooling performance of the engine control unit can be improved.

According to the aspects of claim 2 and claim 3, in addition to the effect of the aspect of claim 1, a large amount of cooling air flows inside the engine room, and the engine control unit can be provided at a position where it is difficult to be affected by the heat of the engine.

According to the aspect of claim 4, in addition to the effect of the aspect of claim 3, the engine control unit can be provided by the engine ECU bracket so as to be spaced upward from the floor panel. This can suppress the influence of water or the like entering from below on the engine control unit. Further, by fixing the fixing portion to the condenser bracket, vibration applied to the engine control unit can be suppressed.

According to the aspect of claim 5, in addition to the effect of the aspect of claim 4, since a space is formed below the engine ECU supported by the engine ECU bracket, for example, it is possible to accurately fix the wiring in the space, and to perform normal communication. Further, since there is a space, it is possible to suppress overload of the connector portion, prevent the connector from coming off, and perform normal communication.

According to the aspect of claim 6, in addition to the effect of the aspect of any one of claims 1 to 5, by having the vent hole, heat in the engine control unit can be discharged from the vent hole. In this case, the ventilation hole is provided on the inner surface, so that water can be prevented from entering the engine control unit through the ventilation hole. Further, by having the cover covering the vent hole, it is possible to further suppress water from entering the inside of the engine control unit.

Drawings

Fig. 1 is an explanatory diagram of a work vehicle according to an embodiment.

Fig. 2 is a right side view showing a partition inside an engine room.

Fig. 3 is a perspective view showing the engine cover.

Fig. 4 is a schematic explanatory view of a state after the hood is closed.

Fig. 5 is (a) perspective view showing an air cleaner and an air cleaner bracket.

Fig. 6 is a perspective view (second view) showing the air cleaner and the air cleaner bracket.

Fig. 7 is a perspective view showing the engine control unit and the engine ECU bracket.

Fig. 8A is a perspective view showing a vent hole of the engine control unit.

Fig. 8B is a perspective view showing a vent hole cover of the engine control unit.

Description of the reference symbols

1: work vehicles (tractors); 2: a machine body frame; 3: an engine cover; 4: a front wheel; 5: a rear wheel; 6: a transmission case; 7: a cockpit; 8: a control mat; 9: a steering wheel; 10: an engine room; 11: a base plate; 11 a: a recess; 20: an isolation section; 21: a heat sink; 22: a radiator support; 22 a: an inclined surface; 23: a dust screen; 23 a: a screen surface; 23 b: a loading and unloading part; 24: a partition plate; 24 a: a notch; 25: an oil cooler; 26: a fuel cooler; 31: an engine hood space; 32: a support shaft; 33: an insulator; 34: an inner peripheral surface; 40: an air cleaner; 41: an air cleaner bracket; 42: an air conditioning condenser; 43: a condenser bracket; 43 a: a dust screen; 43 b: a loading and unloading part; 44: a breather pipe; 45: an intercooler; 46: an intercooler pipe; 47: an intercooler bracket; 47 a: a dust screen; 47 b: a loading and unloading part; 48: a hose connecting pipe; 49: a battery; 50: a PTO shaft; 100: an engine control unit (engine ECU); 101: an engine ECU bracket; 102: a leg portion; 103: a fixed part; 104: wiring; 105: a wiring stay; 106: a vent hole; 107: a vent hole mask; AX: a rotating shaft; e: an engine.

Detailed Description

Embodiments of a work vehicle according to the present invention will be described in detail below with reference to the accompanying drawings. The present invention is not limited to the embodiments described below.

Overall structure of work vehicle (tractor) 1

First, the overall configuration of work vehicle 1 will be described with reference to fig. 1. Fig. 1 is an explanatory view of a work vehicle 1 according to the embodiment, and is a schematic left side view of the work vehicle 1. In the following, the work vehicle 1 will be described by taking a tractor as an example. The tractor 1 as a working vehicle is an agricultural tractor that performs work in a planting field or the like while traveling freely.

In the following, the front-rear direction refers to a traveling direction when the tractor 1 travels straight, and the front side in the traveling direction is defined as "front" and the rear side is defined as "rear". The traveling direction of the tractor 1 is a direction from a driver's seat 8 (described later) to the steering wheel 9 when traveling straight (see fig. 1).

The left-right direction refers to a direction horizontally perpendicular to the front-rear direction. Hereinafter, the left-right direction is defined toward the "front" side. That is, in a state where an operator (also referred to as an operator) of the tractor 1 is seated on the operator's seat 8 and faces forward, the left-hand side is "left" and the right-hand side is "right".

The vertical direction is the vertical direction. The front-rear direction, the left-right direction, and the up-down direction are perpendicular to each other. In addition, each direction is defined for convenience of description, and the directions are not intended to limit the present invention. Hereinafter, the tractor 1 may be referred to as a "machine body".

As shown in fig. 1, a tractor 1 includes a body frame 2, an engine E, an engine cover 3, front wheels 4, rear wheels 5, and a transmission case 6. The body frame 2 is a frame that supports the body as a whole. The engine E is a driving source of the engine body, and is a heat engine such as a diesel engine and a gasoline engine. The engine E is housed in an engine room 10 (see fig. 2).

The engine cover 3 is provided at the front part of the body so as to be openable and closable. The engine cover 3 covers the engine E housed in the engine compartment 10. That is, the engine hood 3 forms the engine room 10 inside in a closed state. Further configuration of the engine hood 3 will be described later with reference to fig. 3.

The front wheels 4 are a pair of left and right wheels, and mainly serve as steered wheels as wheels for steering. The rear wheels 5 are a pair of right and left wheels, and mainly serve as driving wheels. The transmission case 6 is provided at a lower portion of the body frame 2. The transmission case 6 includes a transmission device, and appropriately reduces the speed of the rotational power output from the engine E housed in the engine room 10 by the transmission device and transmits the reduced rotational power to the rear wheels 5 serving as drive wheels.

In addition, the tractor 1 has a cab 7. The cabin 7 forms an operation space and has an operation seat 8 and a steering wheel 9 inside. The operator's seat 8 is a seat for an operator. When the front wheels 4 as steered wheels are steered, the steering wheel 9 is operated by the operator. A display unit (instrument panel) for displaying various information is provided in front of the steering wheel 9.

Further, a forward/reverse operation lever, an accelerator lever, and the like are provided in the cabin 7, for example, in front of the operator's seat 8. In the cab 7, a main shift lever, an auxiliary shift lever, and the like are provided on the right side of the operator's seat 8, for example. In the cabin 7, for example, an accelerator pedal, a brake pedal, a clutch pedal, and the like are provided below the steering wheel 9.

In addition, the tractor 1 has a PTO (Power Take-off) shaft 50. The PTO shaft 50 projects rearward from the transmission case 6. The PTO shaft 50 transmits the rotational power output from the engine E to a working device that performs work in the planting field. The working device is, for example, a rotary cultivator for cultivating, a fertilizer applicator for fertilizing, or the like. The tractor 1 includes a PTO shaft 50, and a lift arm and the like at the rear to which a working device is coupled.

The tractor 1 further includes an engine control unit (hereinafter referred to as an engine ECU (Electronic control unit)) 100. Engine ECU100 is housed inside engine compartment 10 and controls engine E. The engine ECU100 constitutes a drive control system of the tractor 1, for example, together with a travel system ECU that controls the rotation of the drive wheels (rear wheels 5) to control the travel speed, and a work device raising/lowering system ECU that controls the raising/lowering of the work device.

< isolation part 20 inside engine room 10 >

Next, the partition 20 inside the engine room 10 will be described with reference to fig. 2. Fig. 2 is a right side view showing the partition 20 inside the engine room 10. As shown in fig. 2, an engine room 10 that houses an engine E is formed when the hood 3 is closed. The partition 20 is provided upright inside the engine room 10, and partitions the inside of the engine room 10 into two spaces.

A radiator 21 for cooling the cooling water of the engine E is provided inside the engine room 10. The radiator 21 constitutes a partition 20 including a radiator support 22. The radiator 21 is formed in a rectangular plate shape as a whole, and is disposed so that the plane direction is perpendicular to the front-rear direction, thereby partitioning the inside of the engine room 10 front-rear. The radiator 21 is supported by a radiator bracket 22, and is erected on a floor panel 11 forming the bottom surface of the engine room 10 together with the radiator bracket 22.

The radiator support 22 is provided on the left and right side portions of the radiator 21, and supports the radiator on the floor panel 11 in the engine room 10 as described above. The radiator bracket 22 partitions the interior of the engine room 10 forward and backward together with the radiator 21 so that the interior of the engine room 10 becomes two spaces. As shown in fig. 2, the radiator support 22 has an inclined surface 22a, and the inclined surface 22a is inclined toward the left side in fig. 2 as the rear side (rear side of the machine body). The inclined surfaces 22a are formed on the front surfaces of the left and right side end portions of the radiator support 22.

The radiator support 22 has a dust screen 23. The dust screen 23 is provided on the front surface of the radiator 21 in the left-right direction. The dust screen 23 has a screen surface 23a (see fig. 5). That is, the dust screen 23 is disposed so that the direction of the screen surface 23a is perpendicular to the front-rear direction. The dust screen 23 has attachment/detachment portions 23b to the radiator support at the left and right side end portions. The detachable portion 23b is configured to detachably attach the dust screen 23 to the radiator support 22 by a magnetic force of a magnet, for example.

In addition, a housing space is formed between the heat sink 21 and the dust screen 23 in the front-rear direction. At least one of an oil cooler 25 and a fuel cooler 26 (both refer to fig. 7) is provided in the housing space. The oil cooler 25 is a device that cools oil (hydraulic oil) of the drive system, and the fuel cooler 26 is a device that cools fuel of the engine body.

When both the oil cooler 25 and the fuel cooler 26 are provided, the oil cooler 25 and the fuel cooler 26 are preferably arranged side by side in the left-right direction. In this case, the right and left sides and the upper side of each of the oil cooler 25 and the fuel cooler are covered with the radiator support 22.

The partition unit 20 includes a partition plate (also referred to as a heat shield plate) 24 in addition to the radiator 21 and the radiator support 22. Partition plate 24 is provided on the upper portion of radiator support 22. The partition plate 24 extends in the left-right direction and is disposed so that the plane direction is perpendicular to the front-rear direction, thereby partitioning the upper portion in the engine room 10 from the front-rear direction. As shown in fig. 2, partition plate 24 is inclined rearward at the same inclination angle as inclined surface 22a of radiator support 22 so as to be continuous with inclined surface 22a in the side view (right side view).

< engine hood 3 >

Next, the engine cover will be described with reference to fig. 3 and 4. Fig. 3 is a perspective view showing the engine cover 3. Fig. 4 is a schematic explanatory view of a state where the hood 3 is closed. Fig. 3 is a view (perspective view) of the engine hood 3 as viewed obliquely from the left lower side. As shown in fig. 3, the engine cover 3 covers the engine E (see fig. 2), and has a space (engine cover space) 31 inside so as to form the engine room 10.

The engine cover 3 has a support shaft 32 and an insulator 33 inside. The support shafts 32 are provided in a pair of left and right, and the respective axes AX are provided along the left-right direction. The axis AX of the support shaft 32 is a rotation shaft when the engine hood 3 is opened and closed. That is, the engine cover 3 is provided so as to be openable and closable by being rotated about an axis (rotation axis) AX of the support shaft 32. The support shaft 32 is preferably provided at the rear portion of the engine cover 3, and more preferably at the rear end portion of the engine cover 3.

The insulator 33 is provided on the inner peripheral surface 34 of the engine cover 3. The insulator 33 is provided along the inner peripheral surface 34 of the engine cover 3 so as to divide the inner peripheral surface 34 into front and rear portions. The insulator 33 is, for example, a sponge-like cushioning member. As shown in fig. 4, when the hood 3 is turned around the rotation axis AX in the R direction to be closed, the insulator 33 abuts against the inclined surface 22a (including the front surface of the partition plate 24) of the partition portion 20 (radiator support 22), and thereby the insulator 33 seals the gap between the inner peripheral surface 34 of the hood 3 and the partition portion 20.

As described above, according to the work vehicle (tractor) 1 of the embodiment, the spacer 20 has the inclined surface 22a inclined toward the rotation axis AX of the engine hood 3, and thus the insulator 33 is in surface contact with the inclined surface 22a of the spacer 20. This can alleviate the concentration of load such as the contact of the insulator 33 with the edge portion of the spacer 20, and can suppress the deterioration of the internal components of the hood 3 such as the insulator 33 and the spacer 20 (the radiator 21, the radiator bracket 22, and the partition plate 24).

In this case, by inclining the inclined surface 22a of the spacer 20 toward the rotation axis AX, even if the hood 3 rotates along a trajectory that draws an arc centered on the rotation axis AX, the insulator 33 is less likely to contact the edge portion of the spacer 20 because the inclined surface 22a is oriented toward the insulator 33 at an angle of elevation.

Further, by providing the rotation axis AX at the rear portion (rear end portion) of the hood 3 and inclining the inclined surface 22a of the spacer 20 rearward, even if the hood 3 rotates along an orbit that draws an arc centered on the rotation axis AX, the insulator 33 is less likely to contact the edge portion of the spacer 20 because the inclined surface 22a is oriented toward the insulator 33 at an angle of elevation.

Further, by forming the inclined surface 22a on the front surface of the radiator bracket 22 constituting the spacer 20, even if the engine hood 3 rotates along a trajectory that draws an arc centered on the rotation axis AX, the insulator 33 is less likely to contact the edge portion of the radiator bracket 22 because the inclined surface 22a on the front surface of the radiator bracket 22 is oriented toward the insulator 33 at an angle of elevation.

Further, the radiator 21, the oil cooler 25, and the fuel cooler 26 can be protected from dust and the like by providing the dust screen 23. Further, since the oil cooler 25 and the fuel cooler 26 are disposed near the radiator 21, maintenance can be performed at one location. This can improve the maintainability.

Further, by providing partition plate 24 at the upper portion of radiator support 22, the sealing of each space partitioned inside engine room 10 can be improved. Further, by inclining the partition plate 24 to the rear side, even if the hood 3 rotates along a track that draws an arc centered on the rotation axis AX, the insulator 33 is less likely to contact the edge portion of the partition plate 24 because the front surface of the partition plate 24 is in a posture facing the insulator 33 at an elevation angle.

< air cleaner 40 and air cleaner bracket 41 >

Next, the air cleaner 40 and the air cleaner bracket 41 will be described with reference to fig. 5 and 6. Fig. 5 and 6 are perspective views showing the air cleaner 40 and the air cleaner bracket 41, respectively. Fig. 5 is a view (perspective view) of the air cleaner 40 and the air cleaner bracket 41 viewed from obliquely upper right, and fig. 6 is a view (perspective view) of the air cleaner 40 and the air cleaner bracket 41 viewed from obliquely upper right in front.

As shown in fig. 5 and 6, an air cleaner 40 is provided inside the engine room 10. The air cleaner 40 is provided in front of the partition plate 24. The air cleaner 40 is a device for removing impurities from air supplied to the engine E (see fig. 2). Further, the air cleaner 40 is supported by the air cleaner bracket 41 in front of the partition plate 24. The air cleaner bracket 41 extends forward from the partition plate 24.

Further, an air-conditioning condenser (air-conditioning condenser) 42 is provided on the floor panel 11 inside the engine room 10. The air conditioner condenser 42 is supported by a condenser bracket 43. The condenser bracket 43 is provided upright in front of the radiator 21. The air cleaner bracket 41 and the condenser bracket 43 are fixed to each other. In this case, the fixing is preferably performed by welding.

As described above, the rigidity can be improved by fixing the three of the partition plate 24, the air cleaner bracket 41, and the condenser bracket 43 together.

The condenser bracket 43 has a tubular frame portion. A breather pipe 44 (for blowby gas discharge) of the front axle is inserted into the interior of the condenser bracket 43. This facilitates wiring of the breather pipe 44, and improves the space efficiency in the engine room 10.

Further, a hole portion for the vent pipe 44 is formed in an upper portion of the frame portion of the condenser bracket 43. This allows the pressure of the axle bracket to be released to the atmosphere. An air conditioning condenser 42 is provided in front of the frame portion of the condenser bracket 43.

Further, similarly to the radiator support 22 described above, a dust screen 43a is detachably attached to the condenser support 43 by a magnet type detachable portion 43b, for example.

An intercooler 45 (and an intercooler bracket 47) are fixed to the condenser bracket 43. That is, the intercooler 45 is supported on the base plate 11 by the condenser bracket 43.

Further, partition plates 24 may be divided into upper and lower portions, and intercooler pipe 46 and wiring may be inserted between partition plates 24. In this case, a U-shaped notch 24a through which the intercooler pipe 46 passes is formed in the upper end edge of the lower partition plate 24. U-shaped notches 24a may be formed in the lower end edge of the upper partition plate 24. A buffer member for alleviating concentration of load in the case of supporting the intercooler pipe 46 may be provided at the notch 24 a.

Further, a dust screen 47a, which can be easily attached to and detached from the intercooler bracket 47 by a magnet type attaching and detaching portion 47b, for example, is attached to the intercooler bracket 47 in the same manner as the radiator bracket 22 and the condenser bracket 43 described above.

Further, the partition plate 24 may be provided with a hose connecting pipe 48 penetrating the partition plate 24 in the front-rear direction.

As shown in fig. 5, a recess 11a is formed in the bottom plate 11. A battery 49 is housed in the recess 11 a. Thus, the battery 49 can be disposed at a low position, and the battery 49 can be disposed so as not to block the front of the radiator 21, the intercooler 45, and the air conditioning condenser 42, thereby improving the cooling efficiency thereof.

Further, the rear end portion of the air cleaner bracket 41 is fixed to the front surface of the radiator bracket 22. Further, the front portion of the engine hood 3 (see fig. 3) is formed so as to cover a portion of the engine room 10 located forward of the radiator support 22: the front surface, the upper surface, and the left and right side surfaces can suck air. This allows a large amount of air to be drawn into the engine compartment 10, thereby improving cooling efficiency.

The engine ECU100 is supported by an engine ECU bracket 101 (see fig. 7) described later, whereby the engine ECU100 is disposed on the side (left side) of the condenser bracket. This can suppress the following: the engine ECU100, which is a precision device, is affected by water that enters from the upper surface of the engine hood 3.

< configuration of Engine ECU100 >

Next, the arrangement of engine ECU100 will be described with reference to fig. 7. Fig. 7 is a perspective view showing an engine control unit (engine ECU)100 and an engine ECU bracket 101. Fig. 7 is a front, left and upper oblique view (perspective view) of the engine ECU100 and the engine ECU bracket 101. Engine ECU100 is a precision device that controls engine E as described above.

As shown in fig. 7, the interior of the engine room 10 is divided into two spaces, front and rear, by erecting a radiator 21 constituting the partition portion 20. The engine E is disposed in any one of two spaces (rear space) in the engine room 10. Engine ECU100 is disposed in a space (front space) on the opposite side of engine E with radiator 21 interposed therebetween, of the front and rear two spaces. Engine ECU100 is disposed to be offset to either the left or right side in engine room 10.

The engine ECU100 is supported by an engine ECU bracket 101 in the engine room 10. The engine ECU bracket 101 is disposed in a space (front space) on the opposite side of the radiator 21 from the engine E, out of the front and rear two spaces, and is disposed on either the left or right side in the engine room 10. The engine ECU bracket 101 is provided upright on either the left or right of the air-conditioning condenser 42 (see fig. 8A and 8B) supported by the condenser bracket 43.

As shown in fig. 7, the engine ECU bracket 101 has a leg portion 102 and a fixing portion 103. The leg portion 102 is erected so as to protrude upward from a bottom plate 11 forming a bottom surface of the engine room 10. The fixing portion 103 is provided continuously from the leg portion 102 to above the leg portion 102. By fixing engine ECU100, engine ECU100 is disposed above floor panel 11. The fixing portion 103 is fixed to the condenser bracket 43 (see fig. 8A and 8B) at the upper portion of the air-conditioning condenser 42.

Further, the engine ECU100 is supported by the engine ECU bracket 101 such that the connector portion 100a faces downward. Engine ECU100 is supported by engine ECU bracket 101 so as to be disposed laterally above air conditioner condenser 42. Engine ECU100 is disposed so as to rotate about an axis in the vertical direction and have an angle with respect to the front-rear direction. As a result, engine ECU100 can be arranged along the shape of hood 3 (see fig. 3), and interference with or collision with hood 3 can be prevented.

Further, a space is formed below the engine ECU100 supported by the engine ECU bracket 101, and for example, the wiring 104 can be accurately fixed in the space, and normal communication can be performed. Further, by fixing wire 104 near connector portion 100a of engine ECU100, overload of connector portion 100a can be suppressed, and normal communication can be performed by preventing connector from coming off or the like.

In addition, a wiring stay 105 for fixing the wiring 104 is provided at a lower portion (leg portion 102) of the engine ECU bracket. This prevents the connector from coming off, and enables normal communication. Further, the fixing portion 103 of the engine ECU bracket 101 covers the outer side surface (left side surface) of the engine ECU. This can suppress the influence of water entering from the side surface of the engine cover 3.

As described above, according to work vehicle (tractor) 1 of the embodiment, a large amount of cooling air flows inside engine room 10, and engine ECU100 is disposed at a position where it is difficult to receive the thermal influence of engine E, so that the cooling performance of engine ECU100 can be improved. In engine room 10, a large amount of cooling air flows, and engine ECU100 can be provided at a position where it is difficult to be affected by the heat of engine E.

Further, the engine ECU100 may be provided by the engine ECU bracket 101 so as to be spaced upward from the floor panel 11. This can suppress influence of water or the like entering from below on engine ECU 100. Further, by fixing portion 103 to condenser bracket 43, vibration applied to engine ECU100 can be suppressed.

< Vent hole 106 and Vent hole cover 107 of Engine ECU100 >

Next, referring to fig. 8A and 8B, the breather hole 106 and the breather hole cover 107 of the engine ECU100 will be described. Fig. 8A is a perspective view showing the vent hole 106 of the engine control unit (engine ECU) 100. Fig. 8B is a perspective view showing a vent hole cover 107 of the engine control unit (engine ECU) 100.

As shown in fig. 8A, the engine ECU100 has a hole (air vent) 106 into which the breather pipe 44 is inserted. In a state where engine ECU100 is installed in engine compartment 10, vent hole 106 is formed in a surface facing the inside (right side). As shown in fig. 8B, the vent hole 106 is covered with a plate-like vent hole cover 107.

By having the vent hole 106 in this manner, heat in the engine ECU100 can be discharged from the vent hole 106. Further, by providing the air vent hole 106 on the inner surface of the engine ECU100, it is possible to suppress water from entering the engine ECU100 through the air vent hole 106 during washing, for example. Further, by providing the vent hole cover 107, water intrusion into the engine ECU100 can be further suppressed.

Further, a buffer member may be provided between engine ECU100 and the engine ECU bracket. This allows the shock absorbing member to absorb the vibration, thereby enabling engine ECU100 to operate stably. Further, the reservoir dryer may be provided between the engine ECU100 and the radiator 21 on the side of the intercooler bracket 47.

Further effects and modifications can be easily derived by those skilled in the art. Therefore, the broader aspects of the present invention are not limited to the specific detailed and representative embodiments shown and described above. Therefore, various modifications can be made without departing from the spirit or scope of the general utility model defined by the scope of the added technical means and equivalents thereof.

Claims (6)

1. A working vehicle is characterized in that,

the work vehicle includes:

an engine;

an engine cover that covers the engine to form an engine room;

a radiator that is erected to partition the interior of the engine room from front to back; and

and an engine control unit that controls the engine, the engine control unit being disposed in either one of left and right sides inside the engine room, and being disposed in a space on an opposite side of the engine room from the radiator.

2. The work vehicle according to claim 1,

the work vehicle has an engine ECU bracket that supports the engine control unit,

the engine ECU bracket is vertically provided on either of left and right sides of an inside of the engine room.

3. The work vehicle according to claim 2,

the work vehicle has a condenser bracket supporting an air conditioning condenser, the condenser bracket being vertically disposed in front of the radiator,

the engine ECU bracket is vertically provided on either of the left and right sides of the air conditioning condenser supported by the condenser bracket.

4. The work vehicle according to claim 3,

the engine ECU bracket has:

a leg portion extending upward from a bottom plate forming a bottom surface of the engine room; and

and a fixing portion provided continuously upward from the leg portion, the engine control unit being attached to the fixing portion, and the fixing portion being fixed to the condenser bracket above the air conditioner condenser.

5. The work vehicle according to claim 4,

the engine control unit is disposed on a side of an upper portion of the air conditioner condenser, and is supported by the engine ECU bracket such that a connector portion faces downward.

6. The work vehicle according to any one of claims 1 to 5,

the engine control unit has a vent hole on a surface facing an inside of the engine room, and further has a cover covering the vent hole.

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