electric work vehicle

Abstract

To provide an electric work vehicle in which the length of electric wiring electrically connecting a connection portion and an input portion can be made relatively short.SOLUTION: An electric work vehicle is equipped with a battery 4, a motor that is driven by power supplied from the battery 4, a traveling device 10 that is driven by the motor, an input portion 50 that is provided on a side part of the battery 4, and in which the power to the battery 4 is inputted, a connection portion 52 that can connect a charger, and electric wiring 51 that electrically connects the connection portion 52 and the input portion 50. The connection portion 52 is provided at a position adjacent to a side part on which the input portion 50 of the battery 4 is provided.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to an electric work vehicle equipped with a battery and a motor that is driven by power supplied from the battery. [Background technology]

[0002] An example of an electric work vehicle like the one described above is already known, for example, as described in Patent Document 1. This electric work vehicle (referred to as a "tractor" in Patent Document 1) is capable of traveling using traveling devices (referred to as "front wheels" and "rear wheels" in Patent Document 1) driven by a motor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-953 Summary of the Invention [Problem to be solved by the invention]

[0004] In the electric work vehicle described in Patent Document 1, it is conceivable to configure the battery so that it is provided with an input unit for inputting power to the battery, a connection unit to which a charger can be connected, and electrical wiring that electrically connects the connection unit and the input unit. With this configuration, the battery can be charged using the charger.

[0005] However, depending on the location of the connection part, the length of the electrical wiring may be relatively long. For example, if the input part is provided on one side of the battery and the connection part is provided near the other side of the battery, the length of the electrical wiring may tend to be relatively long.

[0006] An object of the present invention is to provide an electric work vehicle in which the length of the electrical wiring electrically connecting the connection part and the input part can be relatively easily shortened. [Means for solving the problem]

[0007] The present invention is characterized in that it comprises a battery, a motor driven by power supplied from the battery, a traveling device driven by the motor, an input unit to which power is input to the battery, a cover member that covers the battery, a driving unit on which an operator can ride, a connection unit to which a charger can be connected, and electrical wiring that electrically connects the connection unit and the input unit, a portion that connects the connection unit and the electrical wiring is located inside the cover member, and a link mechanism that can connect a work device that performs work on a field, the battery and the cover member are provided in the front part of the machine body, and the link mechanism is provided in the rear part of the machine body. The connection portion is provided outside the battery and in front of the battery. The reason is that... The present invention is characterized in that it comprises a battery, a motor driven by power supplied from the battery, a driving device driven by the motor, an input section provided on the side of the battery and through which power is input to the battery, a connection section to which a charger can be connected, and electrical wiring that electrically connects the connection section and the input section, and the connection section is provided in a position adjacent to the part of the battery on which the input section is provided.

[0008] With this configuration, the distance between the connection part and the input part is likely to be shorter than in a configuration in which the connection part is disposed near the side of the battery opposite to the side where the input part is provided, and therefore the length of the electrical wiring can be made relatively short.

[0009] Therefore, with this configuration, it is possible to realize an electric work vehicle in which the length of the electrical wiring electrically connecting the connection part and the input part can be relatively easily shortened.

[0010]

[0011]

[0012]

[0013]

[0014] Furthermore, in the present invention, it is preferable that the connection section has a connection terminal section to which a charger can be connected, and an openable and closable lid section that covers the connection terminal section.

[0015] With this configuration, when the battery is not being charged, the lid is closed to protect the connection terminals, thereby realizing an electric work vehicle that can protect the connection terminals when the battery is not being charged.

[0016]

[0017]

[0018] Furthermore, in the present invention, it is preferable that the cover member is configured to be able to be opened and closed by swinging around a horizontal axis, and the lid portion is configured to be opened by swinging toward the horizontal axis.

[0019] With this configuration, the area around the connection terminal is more easily exposed when the lid is in the open position than when the lid is configured to open by swinging away from the horizontal axis, making it easier to connect a charger to the connection terminal.

[0020] The battery further includes a support member extending from the battery, the support member having a canopy-like portion positioned above the electrical wiring. The support member supports the connection portion. This is preferable. Furthermore, in the present invention, it is preferable that the input portion is provided on the side of the battery on the first direction side, the connection portion is arranged facing opposite the second direction side in a planar view, and the electrical wiring is arranged so that it fits within an area on the first direction side of the battery and on the second direction side of the connection portion in a planar view.

[0021] In a configuration in which electrical wiring transmits high-voltage electricity, workers may feel uneasy about touching the electrical wiring even if the outer periphery of the electrical wiring is covered with an insulator.

[0022] According to this configuration, when a worker is standing facing the connection part, the electrical wiring does not extend beyond the connection part as seen from the worker. Furthermore, the electrical wiring is contained on the first direction side of the battery. Therefore, the worker's arm or the like is unlikely to come into contact with the electrical wiring. This allows the worker to perform charging work with peace of mind.

[0023] Another feature of the work vehicle according to the present invention is that it comprises a battery, a motor driven by power supplied from the battery, a traveling device driven by the motor, an input section into which power is input to the battery, a cover member covering the battery, a driving section in which an operator can ride, a connection section to which a charger can be connected, and electrical wiring that electrically connects the connection section and the input section, a section that connects the connection section and the electrical wiring is located inside the cover member, and it also comprises a link mechanism that can connect work equipment that performs work on a field, the battery and the cover member are located in the front part of the machine body, and the link mechanism is located in the rear part of the machine body, and it comprises a support member that extends from the battery, the support member having a canopy-shaped section located above the electrical wiring, The cover member is covered with a support arm, and the support arm is capable of swinging up and down around a base end of the support arm, and is configured to support the cover member in an open state by bringing the free end of the support arm into contact with the cover member from below when the support arm is in an upright position, and the base end of the support arm is supported by the support member. Especially be. Furthermore, in the present invention, it is preferable that a radiator is provided, the battery is arranged on the third direction side of the radiator, which is opposite the first direction side, and the electrical wiring is arranged so that it fits within the part of the area that is on the third direction side of the radiator when viewed in a plane.

[0024] According to this configuration, the electrical wiring is located on the third direction side of the radiator, which makes it difficult for the worker's arms to come into contact with the electrical wiring, making it easier for the worker to charge the battery with peace of mind.

[0025]

[0026] [Brief explanation of the drawings]

[0027] [Figure 1] FIG. 2 is a left side view of the tractor. [Figure 2] FIG. 2 is a partially cutaway left side view showing the configuration of a connection portion and the like. [Figure 3] FIG. 2 is a partially cutaway plan view showing the configuration of a connection portion and the like. [Figure 4] FIG. 2 is a left side view showing the configuration of a connection portion and the like. [Figure 5]FIG. 2 is a left side view showing the configuration of a support member and the like. [Figure 6] FIG. 2 is a plan view showing the configuration of a support member and the like. [Figure 7] FIG. 2 is a front view showing the configuration of a support member and the like. [Figure 8] FIG. 2 is a front view showing the configuration of a support member and the like. DETAILED DESCRIPTION OF THE INVENTION

[0028] An embodiment of the present invention will be described with reference to the drawings. In the following description, unless otherwise specified, the direction of arrow F shown in Figures 1 to 6 will be referred to as "front," the direction of arrow B will be referred to as "rear," the direction of arrow L shown in Figures 3, 6 to 8 will be referred to as "left," and the direction of arrow R will be referred to as "right." Furthermore, the direction of arrow U shown in Figures 1, 2, 4, 5, 7, and 8 will be referred to as "up," and the direction of arrow D will be referred to as "down."

[0029] [Overall configuration of the tractor] As shown in Figure 1, tractor A (corresponding to the "electric work vehicle" according to the present invention) is equipped with left and right front wheels 10 (corresponding to the "traveling device" according to the present invention), left and right rear wheels 11 (corresponding to the "traveling device" according to the present invention), and a cover member 12.

[0030] The tractor A also includes a machine frame 2 and a driving section 3.

[0031] The vehicle frame 2 is supported by left and right front wheels 10 and left and right rear wheels 11.

[0032] The cover member 12 is disposed at the front of the vehicle body, and the driving section 3 is provided behind the cover member 12. In other words, the cover member 12 is disposed in front of the driving section 3.

[0033] The driver's section 3 has a protective frame 30, a driver's seat 31, and a steering wheel 32. An operator can sit in the driver's seat 31. This allows the operator to get into the driver's section 3. The left and right front wheels 10 are steered by operating the steering wheel 32. The operator can perform various driving operations in the driver's section 3.

[0034] That is, the tractor A is provided with a driving section 3 on which an operator can ride.

[0035] The tractor A also includes a driving battery 4 (corresponding to the "battery" according to the present invention), a motor M, a transmission device T, and a front transmission mechanism FT.

[0036] The cover member 12 is configured to be swingable about an opening / closing axis Q (see FIGS. 2 and 4) (corresponding to the "horizontal axis" according to the present invention) that extends in the left-right direction of the machine body, thereby enabling the cover member 12 to be opened and closed.

[0037] That is, the cover member 12 is configured to be openable and closable by swinging about the opening / closing axis Q. More specifically, the cover member 12 is configured to be openable and closable by swinging about the opening / closing axis Q along the left-right direction of the machine body.

[0038] As shown in FIG. 2, the opening / closing axis Q is located at the rear of the cover member 12.

[0039] When the cover member 12 is in the closed state, the driving battery 4 is covered by the cover member 12. That is, the tractor A is equipped with the cover member 12 that covers the driving battery 4. As shown in FIG. 3 , the driving battery 4 is provided across the left and right ends of the space enclosed by the cover member 12. The driving battery 4 supplies power to the motor M.

[0040] The motor M is disposed below the driving battery 4. The motor M is driven by electric power supplied from the driving battery 4. The driving force of the motor M is transmitted to the transmission device T.

[0041] The transmission device T is disposed rearward of the driving battery 4 and rearward of the motor M. The front transmission mechanism FT extends forward from the transmission device T. The transmission device T changes the speed of the driving force received from the motor M and transmits it to the left and right rear wheels 11. The driving force is also transmitted from the transmission device T to the left and right front wheels 10 via the front transmission mechanism FT. This drives the left and right front wheels 10 and the left and right rear wheels 11.

[0042] That is, the tractor A is equipped with a driving battery 4 and a motor M that is driven by power supplied from the driving battery 4. The tractor A also has left and right front wheels 10 and left and right rear wheels 11 that are driven by the motor M.

[0043] As shown in Fig. 1, a link mechanism LN is provided at the rear of the tractor A. A work implement (not shown), such as a tiller, can be connected to the link mechanism LN.

[0044] The transmission device T is configured to be able to transmit a portion of the driving force received from the motor M to the working device, thereby driving the working device.

[0045] With the above configuration, the tractor A can perform work using the work implement while traveling on the left and right front wheels 10 and the left and right rear wheels 11.

[0046] 1, a headlight 34 is provided on the cover member 12. The headlight 34 is provided on the upper front part of the cover member 12.

[0047] In addition, left and right side covers 35 are provided at the front of the body of the tractor A. The side covers 35 have a grill 35a that allows air to pass through. The lower part of the left rear part and the lower part of the right rear part of the cover member 12 are cut out along the outer shape of the side covers 35.

[0048] 3 and 4, the tractor A is provided with a support arm 46. When the cover member 12 is in the closed state, the support arm 46 is covered by the cover member 12.

[0049] That is, the tractor A is provided with a support arm 46 covered by a cover member 12.

[0050] As shown in FIG. 4, the cover member 12 has an arm connecting portion 12b.

[0051] The support arm 46 is configured to be able to swing up and down around the base end 46a. With the cover member 12 in the open position, the support arm 46 is raised and the free end 46b is connected to the arm connecting portion 12b, so that the free end 46b comes into contact with the cover member 12 from below. This allows the support arm 46 to support the cover member 12 in the open position.

[0052] In this way, the support arm 46 can swing up and down around the base end 46a of the support arm 46, and is configured to support the cover member 12 in an open state by abutting the free end 46b of the support arm 46 against the cover member 12 from below when the support arm 46 is upright.

[0053] [Configuration of the front of the aircraft] 2 and 3, the tractor A is equipped with a radiator 15. The tractor A also is equipped with a reserve tank 5, an inverter 14, a cooling fan 17, an auxiliary battery 18, a voltage converter 19, and an oil cooler CL. When the cover member 12 is in the closed state, the reserve tank 5, the radiator 15, the auxiliary battery 18, the voltage converter 19, and the oil cooler CL are covered by the cover member 12.

[0054] The inverter 14 is disposed below the driving battery 4. The inverter 14 converts DC power from the driving battery 4 into AC power and supplies it to the motor M.

[0055] The reserve tank 5 can store cooling water.

[0056] The radiator 15 and a water pump (not shown) are included in the cooling water path of the tractor A. The water pump pumps the cooling water, causing the cooling water to circulate through this cooling water path. The cooling water is cooled as it passes through the radiator 15.

[0057] Cooling fan 17 is disposed behind radiator 15. Cooling fan 17 sends cooling air to the rear side. As a result, outside air is introduced into the inside of cover member 12 through outside air inlet 12a provided in the front part of cover member 12 and passes through radiator 15. As a result, radiator 15 is cooled.

[0058] The auxiliary battery 18 supplies power to various auxiliary devices. Power is also sent from the driving battery 4 to a voltage converter 19. The voltage converter 19 then steps down the power from the driving battery 4 and supplies it to the auxiliary battery 18.

[0059] The hydraulic oil in the tractor A is cooled by passing through an oil cooler CL.

[0060] As shown in FIG. 2, the driving battery 4 and the inverter 14 are supported by the vehicle frame 2.

[0061] 2, an inverter support portion 42 is supported on the machine frame 2. The inverter support portion 42 is a plate-shaped member that is horizontally oriented. The inverter 14 is placed on the inverter support portion 42.

[0062] 2, the first support portion 43a and the second support portion 43b are supported by the inverter support portion 42. The third support portion 43c is supported by the vehicle frame 2. The battery support portion 44 is provided in a state where it is supported by the first support portion 43a, the second support portion 43b, and the third support portion 43c. The battery support portion 44 is a horizontally oriented plate-shaped member. The battery support portion 44 is provided in a state where it spans the left and right ends of the driving battery 4. The driving battery 4 is placed on the battery support portion 44.

[0063] The vehicle frame 2 also supports the reserve tank 5, the radiator 15, the cooling fan 17, the auxiliary battery 18, the voltage converter 19, and the oil cooler CL.

[0064] 2 and 3, the radiator 15 is disposed in front of the driving battery 4 (corresponding to the "first direction side" according to the present invention). In other words, the driving battery 4 is disposed behind the radiator 15, opposite the front side (corresponding to the "third direction side" according to the present invention).

[0065] 2 to 4, the radiator 15 is supported by a radiator frame 57. The radiator frame 57 is configured in a gate shape that covers the left and right side portions and the upper portion of the radiator 15.

[0066] Thus, the tractor A is provided with a radiator frame 57 that supports the radiator 15.

[0067] [Connections, inputs, and outputs] As shown in FIGS. 3 to 7, the tractor A includes an input harness 51 (corresponding to the “electrical wiring” according to the present invention) and a connection portion 52.

[0068] An input unit 50 is provided on the front side of the driving battery 4. The connection unit 52 is provided in a position adjacent to the front side of the driving battery 4. In other words, the connection unit 52 is provided in a position adjacent to the part of the driving battery 4 on which the input unit 50 is provided.

[0069] More specifically, the connection part 52 is provided in front of the driving battery 4, at a position adjacent to the left end of the front end part of the driving battery 4.

[0070] In this way, the connection part 52 is disposed in front of the driving battery 4. However, the present invention is not limited to this. The connection part 52 may also be disposed behind the driving battery 4. In other words, the connection part 52 is disposed in front of or behind the driving battery 4.

[0071] The input harness 51 electrically connects the connection portion 52 and the input portion 50. That is, the tractor A is provided with the input harness 51 that electrically connects the connection portion 52 and the input portion 50.

[0072] With this configuration, the connection unit 52 is electrically connected to the driving battery 4 via the input harness 51 and the input unit 50. That is, the tractor A is equipped with the input harness 51 that electrically connects the connection unit 52 and the driving battery 4.

[0073] The connection portion 52 is disposed on a lateral side of the fuselage, facing toward the lateral side of the fuselage. More specifically, the connection portion 52 is disposed on the left side of the fuselage, facing toward the left side of the fuselage. More precisely, the connection portion 52 faces toward the upper left of the fuselage.

[0074] 6, the connection portion 52 is disposed facing left in plan view. In other words, the connection portion 52 is disposed facing the side opposite to the right (corresponding to the "second direction side" according to the present invention) in plan view.

[0075] 2 shows the first upper end position P1. The first upper end position P1 is the position of the upper end of the headlight 34 when the cover member 12 is in the closed state. The connection portion 52 is located below the first upper end position P1. In other words, the connection portion 52 is located below the upper end of the headlight 34.

[0076] 5, the connection unit 52 has a connection terminal unit 52c. A charger (not shown) provided at a charging facility or the like can be connected to the connection terminal unit 52c. The standards of the charger and the connection unit 52 are not particularly limited, but may be, for example, CHAdeMO.

[0077] By connecting the charger to the connection terminal portion 52c, power is supplied to the driving battery 4 via the input harness 51 and the input portion 50. In this way, the driving battery 4 is charged.

[0078] Thus, the tractor A is provided with an input unit 50 that is provided on the side of the driving battery 4 and through which power is input to the driving battery 4. The tractor A also has a connection unit 52 to which a charger can be connected. More specifically, the tractor A has a connection unit 52 that can be connected to a charger and is electrically connected to the driving battery 4.

[0079] As shown in FIGS. 1 and 2, when the cover member 12 is in the closed state, the connection portion 52 is covered by the cover member 12.

[0080] 4, when the cover member 12 is in the open state, the connection portion 52 does not overlap with the cover member 12 in a side view. That is, when the cover member 12 is in the open state, the connection portion 52 is exposed.

[0081] 5 to 8, the connection portion 52 has a housing 52a and a lid portion 52b. The connection terminal portion 52c is accommodated by the housing 52a and the lid portion 52b.

[0082] The cover 52b covers the connection terminal 52c from the left side of the body. As shown in Figures 5, 6 and 8, the cover 52b can be opened and closed.

[0083] Thus, the connection portion 52 has a connection terminal portion 52c to which a charger can be connected, and an openable and closable lid portion 52b that covers the connection terminal portion 52c.

[0084] 5, 6 and 8, the lid portion 52b in the closed state is shown in solid lines, and the lid portion 52b in the open state is shown in imaginary lines.

[0085] The lid portion 52b is configured to open by swinging rearward around the rear end portion of the lid portion 52b as an axis. That is, the lid portion 52b is configured to open by swinging toward the driving battery 4. In other words, the lid portion 52b is configured to open by swinging toward the opening / closing axis Q.

[0086] 6 and 7, an output unit 53 is provided on the front side of the driving battery 4. The output unit 53 is disposed adjacent to the left side of the input unit 50. The output unit 53 is electrically connected to the inverter 14 via an output harness 54.

[0087] Electric power from the driving battery 4 is supplied to the inverter 14 via an output unit 53 and an output harness 54 .

[0088] [Input and output harness layout] 3 and 7, the input harness 51 and the output harness 54 are disposed in front of the driving battery 4 and to the right of the connection portion 52. As a result, as shown in FIGS. 3 and 6, the input harness 51 and the output harness 54 are disposed so as not to overlap with the driving battery 4 in a plan view.

[0089] In this way, the input harness 51 is arranged so as not to overlap with the driving battery 4 in a plan view.

[0090] 3, the input harness 51 and the output harness 54 are arranged to fit within an arrangement area AR (corresponding to the "area" according to the present invention) in a plan view. The arrangement area AR is an area forward of the driving battery 4 and to the right of the connection portion 52.

[0091] In this way, in a plan view, the input harness 51 is arranged so as to fit within the arrangement area AR forward of the driving battery 4 and to the right of the connection portion 52. In other words, the input harness 51 is arranged so as not to protrude from the arrangement area AR in a plan view.

[0092] 3 also shows a rear end position RE. The rear end position RE is the position of the rear end of the radiator 15. The input harness 51 and the output harness 54 are arranged to be located rearward of the rear end position RE in a plan view. The connection portion 52 is also arranged rearward of the rear end position RE in a plan view.

[0093] That is, in a plan view, the input harness 51 is arranged so as to fit within the portion of the arrangement area AR that is rearward of the radiator 15. In other words, the input harness 51 is arranged so as not to protrude from the portion of the arrangement area AR that is rearward of the radiator 15 in a plan view.

[0094] 7 also shows a second upper end position P2. The second upper end position P2 is the position of the upper end of the connection portion 52. The input harness 51 and the output harness 54 are arranged to be housed below the second upper end position P2.

[0095] That is, the input harness 51 is arranged so as to fit below the upper end of the connection portion 52. In other words, the input harness 51 is arranged so as not to protrude above the upper end of the connection portion 52.

[0096] [Support structure of connection part] 5 and 6, the tractor A is provided with a support member 70 that extends from the driving battery 4. The connection portion 52 is supported by the support member 70. The support member 70 will be described in detail below.

[0097] The support member 70 has a first stay 71 , a second stay 72 , a third stay 73 , a fourth stay 74 , and a fifth stay 75 .

[0098] The first stay 71 extends forward from the driving battery 4. The rear end of the first stay 71 is connected to the front end of the left side of the driving battery 4. The front end of the first stay 71 is connected to the left part of the radiator frame 57.

[0099] That is, the support member 70 is connected to the radiator frame 57 .

[0100] The second stay 72 extends upward from the middle portion of the first stay 71. The upper end portion of the second stay 72 is connected to the fifth stay 75.

[0101] The third stay 73 extends downward and forward from the driving battery 4. The rear end of the third stay 73 is connected to the upper part of the front left part of the driving battery 4. The front end of the third stay 73 is connected to the fifth stay 75.

[0102] One end of the fourth stay 74 is connected to the upper part of the radiator frame 57. The other end of the fourth stay 74 is connected to the fifth stay 75.

[0103] With the above-described configuration, the fifth stay 75 is supported by the second stay 72, the third stay 73, and the fourth stay 74. The fifth stay 75 supports the connection portion 52.

[0104] 6 and 8, the fifth stay 75 has a canopy portion 75a. The canopy portion 75a is a canopy-shaped portion of the fifth stay 75 and is located above the left end of the input harness 51.

[0105] In this manner, the support member 70 has a canopy-shaped portion located above the input harness 51 .

[0106] 6 and 8, the support member 70 has a sixth stay 76. The sixth stay 76 extends upward and leftward from the fifth stay 75. The base end 46a of the support arm 46 is connected to the extending end of the sixth stay 76 in a relatively rotatable state. As a result, the base end 46a of the support arm 46 is supported by the support member 70.

[0107] With this configuration, the connection portion 52 and the base end portion 46a of the support arm 46 are both located at the front left portion of the body of the tractor A. Therefore, the worker can easily perform the following tasks without moving significantly from the position where he or she is standing: opening the cover member 12, operating the support arm 46 so that the cover member 12 is supported by the support arm 46, opening the lid portion 52b, and connecting the charger to the connection terminal portion 52c.

[0108] Further, the holder 47 is supported by the canopy portion 75a. The holder 47 holds the support arm 46 in a horizontal position by clamping the support arm 46. The worker can remove the support arm 46 from the holder 47 and raise the support arm 46.

[0109] According to the configuration described above, the distance between the connection unit 52 and the input unit 50 is likely to be shorter than in a configuration in which the connection unit 52 is disposed near a portion of the driving battery 4 on the opposite side in the vehicle fore-and-aft direction from the side on which the input unit 50 is provided. Therefore, the length of the input harness 51 can be made relatively short.

[0110] Therefore, according to the configuration described above, it is possible to realize a tractor A in which the length of the input harness 51 that electrically connects the connection portion 52 and the input portion 50 can be made relatively short.

[0111] Other Embodiments (1) Tractor A may be equipped with an engine and configured as a hybrid.

[0112] (2) The input harness 51 and the output harness 54 may overlap the driving battery 4 in a plan view.

[0113] (3) The connection portion 52 may be disposed at a position other than the side of the aircraft. For example, the connection portion 52 may be disposed at the center of the aircraft in the left-right direction. Furthermore, the orientation of the connection portion 52 may be changed as appropriate.

[0114] (4) The arrangement of some or all of the components may be reversed left to right.

[0115] (5) The connecting portion 52 does not have to have the lid portion 52b.

[0116] (6) The mechanism for opening and closing the lid 52b may be any mechanism. For example, the lid 52b may be configured to open and close by sliding, or may be configured to be detachable.

[0117] (7) The lid portion 52b may be configured to open by swinging it away from the driving battery 4.

[0118] (8) The cover portion 52b may be configured to open by swinging away from the opening / closing axis Q.

[0119] (9) The input harness 51 and the output harness 54 may be arranged so as to extend beyond the arrangement area AR in a plan view.

[0120] (10) The driving battery 4 may be disposed in front of the radiator 15, or on the left or right side.

[0121] (11) The input harness 51 and the output harness 54 may be arranged to extend above the upper end of the connecting portion 52 .

[0122] (12) The connection portion 52 may be located on the left or right side of the driving battery 4.

[0123] (13) The cover member 12 may be openable and closable by sliding back and forth or up and down.

[0124] (14) The connection portion 52 may be located above the upper end of the headlight 34.

[0125] (15) The support member 70 does not have to be provided.

[0126] (16) The support member 70 does not have to be connected to the radiator frame 57.

[0127] (17) The support member 70 does not have to have the overhanging portion 75a.

[0128] (18) The base end 46 a of the support arm 46 does not have to be supported by the support member 70 .

[0129] (19) When the cover member 12 is in the closed state, the connection portion 52 does not have to be covered by the cover member 12 .

[0130] (20) In the above embodiment, the "first direction side" according to the present invention is the front side. However, the present invention is not limited to this, and the "first direction side" may be the rear side, the left side, or the right side. Similarly, the "third direction side" may be the front side, the right side, or the left side.

[0131] (21) In the above embodiment, the "second direction side" according to the present invention is the right side. However, the present invention is not limited to this, and the "second direction side" may be the left side, the front side, or the rear side.

[0132] (22) The opening / closing axis Q does not have to be aligned with the left-right direction of the aircraft body. For example, the opening / closing axis Q may be aligned with the front-rear direction of the aircraft body.

[0133] The configurations disclosed in the above-described embodiments (including other embodiments, the same applies hereinafter) can be applied in combination with the configurations disclosed in other embodiments, unless a contradiction arises. Furthermore, the embodiments disclosed in this specification are merely examples, and the present invention is not limited to these, and can be modified as appropriate within the scope of the purpose of the present invention. [Industrial Applicability]

[0134] The present invention can be used not only in tractors but also in various electric work vehicles such as combine harvesters, rice transplanters, and construction machines. [Explanation of symbols]

[0135] 3. Driving section 4. Driving battery (battery) 10 Front wheels (running gear) 11 Rear wheels (running gear) 12 Cover member 15 Radiator 46 Support arm 46a Proximal end 46b Free end 50 Input section 51 Input harness (electrical wiring) 52 Connection 52b Lid 52c Connection terminal 70 Support member 75a Eaves A Tractor (electric work vehicle) AR placement area (area) LN link mechanism Medium motor Q Opening / closing axis (horizontal axis)

Claims

1. A battery, a motor driven by power supplied from the battery; a traveling device driven by the motor; an input unit through which power is input to the battery; a cover member that covers the battery; A driving section in which an operator can ride; a connection portion to which a charger can be connected; an electrical wiring that electrically connects the connection unit and the input unit, a portion connecting the connection portion and the electrical wiring is located inside the cover member, a link mechanism that can connect a work implement that performs work on a field; the battery and the cover member are provided at a front portion of the aircraft body, the link mechanism is provided at the rear of the aircraft, The connection portion is provided outside the battery and in front of the battery.

2. The electric work vehicle according to claim 1, wherein the connection section has a connection terminal section to which a charger can be connected, and an openable and closable lid section that covers the connection terminal section.

3. The cover member is configured to be openable and closable by swinging about a horizontal axis, The electric work vehicle according to claim 2, wherein the cover is configured to open by swinging toward the horizontal axis.

4. a support member extending from the battery; the support member has an eave-shaped portion located above the electrical wiring, The electric work vehicle according to claim 1 , wherein the support member supports the connection portion.

5. A battery; a motor driven by power supplied from the battery; a traveling device driven by the motor; an input unit through which power is input to the battery; a cover member that covers the battery; A driving section in which an operator can ride; a connection portion to which a charger can be connected; an electrical wiring that electrically connects the connection unit and the input unit, a portion connecting the connection portion and the electrical wiring is located inside the cover member, a link mechanism that can connect a work implement that performs work on a field; the battery and the cover member are provided at a front portion of the aircraft body, the link mechanism is provided at the rear of the aircraft, a support member extending from the battery; the support member has an eave-shaped portion located above the electrical wiring, a support arm covered by the cover member, the support arm is configured to be able to swing up and down around a base end of the support arm, and to support the cover member in an open state by bringing a free end of the support arm into contact with the cover member from below when the support arm is in an upright position, The base end of the support arm is supported by the support member.

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