JP2017071358A - Vehicle mounted with power generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate loading and unloading work of a power generation unit in a vehicle mounted with a power generator.SOLUTION: A vehicle 1 mounted with a power generator comprises: a housing box 73 including a box body 73 which is coupled to a vehicle body 2 and is opened toward a vehicle outside part in a horizontal direction, and a lid body 74 for opening and closing the opening 73A of the box body; a slider 80 which is supported slidably between a storage position received in the box body and a draw-out position protruded outward of the box body from the opening, is supported turnably in the draw-out position and can assume an inclined posture in which the leading end is situated below the base end; a portable power generation unit 8 which is placed on the slider and is received inside the box body; and a power generation unit coupling means 87 for detachably coupling the power generation unit to the slider.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a generator-equipped vehicle including a power generation unit that is removable from a vehicle body.

  An electric vehicle drives an electric motor with the electric power of the mounted secondary battery, and travels with the driving force of the electric motor. Therefore, increasing the capacity of the secondary battery is effective for extending the cruising distance of the electric vehicle. However, when the capacity of the secondary battery is simply increased, the weight of the vehicle body increases, and the energy efficiency (fuel consumption, power consumption) deteriorates. In order to solve this problem, an electric power generation unit including an internal combustion engine is mounted on a vehicle, and electric power is supplied from the power generation unit to the electric motor and the secondary battery according to the running state and the remaining amount of the secondary battery. An automobile (range extender car) is known (for example, Patent Document 1).

  Since a power generation unit including an internal combustion engine generates a relatively large noise, it is desired to take measures against noise. For example, as a noise countermeasure for a power generation unit for a camper, there is one in which a soundproof box is suspended at the lower part of a vehicle body and a power generation unit including an internal combustion engine is accommodated in the soundproof box (for example, Patent Document 2). However, the power generation unit according to Patent Document 2 does not have a structure that can be detached from the soundproof box, and cannot be used alone in a place away from the vehicle, and is low in versatility.

  In some vehicles equipped with a generator, the floor behind the portion on which the generator is mounted is inclined to facilitate the loading and unloading of the generator (for example, Patent Document 3).

JP 2004-208435 A Japanese Patent Laid-Open No. 10-325333 Registered Utility Model No. 3187376

  However, even in the vehicle according to Patent Document 3, there is a gap between the floor and the ground, and the work load for loading the generator on the floor from the outside is large.

  In view of the above background, an object of the present invention is to facilitate loading and unloading operations of a power generation unit in a generator-equipped vehicle.

  In order to solve the above-described problems, according to one aspect of the present invention, there is provided a box (73) coupled to the vehicle body (2) and opened toward the outer side of the vehicle body in the horizontal direction, and an opening (73A) of the box. Between a storage box (73) including a lid (74) that opens and closes, a storage position stored in the box within the box, and a drawer position protruding outward from the opening from the opening. A slider (80) supported so as to be slidable and supported in a rotatable manner with respect to the box body in the pull-out position, and having a tilted posture in which a distal end is positioned below a base end; and the slider A portable power generation unit (8) placed on the box and housed inside the box, and a power generation unit coupling means (87) for detachably coupling the power generation unit to the slider. Providing a generator-equipped vehicle (1) That.

  According to this aspect, the power generation unit can be easily unloaded by the slider. With the power generation unit coupling means, the power generation unit can be fixed on the slider in the inclined posture, and the loading and unloading work becomes easy.

  In the above aspect, the tip of the slider may be grounded in an inclined posture.

  According to this aspect, the work of unloading the power generation unit onto the slider is facilitated.

  In the above aspect, the power generation unit may have a wheel (16), and the slider may have a wheel groove (81) that extends in a sliding movement direction of the slider and receives the wheel.

  According to this aspect, loading and unloading of the power generation unit onto the slider is facilitated.

  In the above aspect, a recess (81A) into which the wheel is fitted may be formed in a part of the bottom of the wheel groove.

  According to this aspect, the power generation unit can be maintained at a predetermined position with respect to the slider by the engagement between the wheel and the recess.

  Further, in the above aspect, it is preferable to have a slider coupling means (86) for detachably coupling the slider in the storage position to the box.

  According to this aspect, the slider is fixed at the storage position.

  Further, in the above aspect, an oil filler (72) provided in an upper portion of the power generation unit and a temporary fixing position of the slider at a temporary fixing position between the storage position and the pulling position to the box body. The oil supply port is located outside the box in the temporary fixing position, and the temporary fixing means is used when the slider moves from the storage position toward the drawing position. The movement of the slider may be restricted at the temporary fixing position.

  According to this aspect, refueling becomes easy. Further, when the slider is pulled from the storage position to the pull-out position, the slider stops once at the temporary fixing position, so that unintentional excessive pulling of the slider is suppressed.

  In the above aspect, a connector (28) to which a wire harness (71) extending from the vehicle body is connected is provided at a portion of the power generation unit located outside the box in the temporary fixing position. Good.

  According to this aspect, connection and cancellation | release of a wire harness and a connector become easy.

  According to the above configuration, the loading and unloading operation of the power generation unit can be facilitated in the generator-equipped vehicle.

Schematic side view of an electric vehicle according to an embodiment Schematic plan view of an electric vehicle according to an embodiment The perspective view which abbreviate | omits and shows the right side part of the soundproof box which concerns on embodiment Illustration of power generation unit Side view of the lid from the inside VI-VI sectional view of FIG. A perspective view showing a slider in an inclined posture A perspective view showing the lower surface of the slider The perspective view which shows the state by which the electric power generation unit was mounted on the inclined slider.

  Hereinafter, an embodiment of a generator-equipped vehicle of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 and 2, an electric vehicle (a generator-equipped vehicle) 1 is a four-wheeled vehicle configured as micromobility. The electric vehicle 1 includes a vehicle body 2, a pair of left and right front wheels 3 and a pair of left and right rear wheels 4 supported on the vehicle body 2, an electric motor 5 as a drive source provided on each of the front wheels 3, A battery 7 (secondary battery) that supplies power to the motor 5, a power generation unit 8 that supplies power to the battery 7, and a charger 9 provided between the battery 7 and the power generation unit 8 are included. . Each electric motor 5 is configured as an in-hole motor which is incorporated coaxially with each front wheel 3. The power generation unit 8 is detachably mounted on the vehicle body 2. A storage box 12 for storing the power generation unit 8 in a removable manner is provided below the rear portion of the vehicle body 2.

  As shown in FIG. 3, the power generation unit 8 has a substantially rectangular parallelepiped housing 15. The housing 15 is arranged so that the longitudinal direction extends forward and backward with reference to the state of being accommodated in the storage box 12. A pair of left and right wheels 16 are provided on the front side of the bottom of the housing 15, and a pair of left and right housing legs 17 are provided on the rear side of the bottom. The housing leg 17 is made of rubber, for example. A handle 18 is provided at the rear of the housing 15. The handle 18 includes a pair of left and right arms 18A coupled to the housing 15 so as to be rotatable about a common axis extending in the left-right direction, and a gripping portion 18B extending between the arms 18A and extending left and right. Have The handle 18 is located between a storage position where the gripping portion 18B is located below the rotation shaft and a use position (see FIG. 9) where the gripping portion 18B is lifted rearward and upward from the storage position and located behind the rotation shaft. Can be rotated. The user can lift the handle 18 in the use position further to move the housing leg 17 away from the floor and ground the housing 15 only through the wheel 16. In this state, the housing 15 can be easily pushed and pulled.

  As shown in FIGS. 3 and 4, the power generation unit 8 includes an internal combustion engine 20, a transmission 21, a generator 22 (ACG), a fuel tank 25, a first connector 27, and a housing 15. It has the 2nd connector 28 and a power generation control apparatus (not shown). The internal combustion engine 20 may be a known reciprocating internal combustion engine. The internal combustion engine 20 of the present embodiment is a water-cooled 4-stroke OHC single cylinder. A cylinder, a crank chamber, a combustion chamber, a water jacket 32, and the like are formed in the engine body 30 of the internal combustion engine 20 formed by a cylinder block, a cylinder head, and the like. The internal combustion engine 20 has an intake pipe 34 that forms an intake passage for supplying air to the combustion chamber, and a first exhaust pipe 35 that forms an exhaust passage for exhausting exhaust gas (burned gas) generated in the combustion chamber. ing.

  The intake pipe 34 has an intake inlet 41, an air filter 42, a throttle valve 43, and a carburetor 44 in order from the upstream side, and is connected to the engine body 30 at the downstream end. The carburetor 44 is supplied with fuel from a fuel tank 25 provided in the housing 15. The fuel may be gasoline or light oil.

  The first exhaust pipe 35 is connected to the engine body 30 at the upstream end, and has an exhaust purification device 47, a first silencer 48, and a first exhaust outlet 49 in order from the upstream side. The exhaust purification device 47 is a catalytic converter including a known three-way catalyst, and reduces harmful substances in the exhaust gas. The first silencer 48 may be a known muffler including an expansion chamber, a partition wall, and a sound absorbing material.

  The transmission 21 is connected to one end of the crankshaft 51 of the internal combustion engine 20, and the impeller 52 is connected to the other end. The impeller 52 is an axial flow type and rotates together with the crankshaft 51 with the crankshaft 51 as a rotation axis. In another embodiment, an electric fan may be provided in the housing 15 instead of the impeller 52. A radiator 53 is provided in front of the impeller 52. The radiator 53 is connected to the water jacket 32 via the water pipe 54 to form a part of the circulation path.

  A suction port 57 that penetrates the rear side wall 15 </ b> A is formed in the upper portion of the rear side wall 15 </ b> A of the housing 15. A discharge port 58 penetrating the rear side wall 15A is formed in an intermediate portion of the rear side wall 15A of the housing 15 in the vertical direction. The suction port 57 and the discharge port 58 are each formed from a plurality of through holes. A passage forming member 61 is provided inside the housing 15, and an air passage 62 extending from the suction port 57 to the impeller 52 is formed by the passage forming member 61. Inside the housing 15 and outside the air passage 62 is an inner chamber 63. The impeller 52 is provided at the downstream end of the air passage 62, and the radiator 53 is disposed in the air passage 62. The discharge port 58 is formed at a position connected to the inner chamber 63. As a result, when the impeller 52 rotates, air (fresh air) is sucked into the air passage 62 from the outside of the housing 15 through the suction port 57, and the air passes through the radiator 53 and the impeller 52 in this order. From the downstream end to the inner chamber 63. Thereafter, the air flows along the surface of the engine body 30 in the inner chamber 63 and is discharged from the discharge port 58 to the outside of the housing 15. As described above, the housing 15 constitutes a duct through which cooling air flows. The air exchanges heat with the radiator 53 and the engine body 30 to cool them. When an electric fan is used instead of the impeller 52 connected to the crankshaft 51, the electric fan may be provided in, for example, the air passage 62 so that air is sucked from the suction port 57 and discharged from the discharge port 58. The intake inlet 41 of the intake pipe 34 is disposed in the inner chamber 63. In other embodiments, the intake inlet 41 may be disposed in the air passage 62.

  The first exhaust pipe 35 extends in the inner chamber 63 toward the rear side wall 15A and penetrates the rear side wall 15A. The first exhaust outlet 49 is an outer surface of the rear side wall 15 </ b> A and is disposed in the vicinity of the discharge port 58. The discharge port 58 is disposed so as to surround the first exhaust outlet 49.

  The transmission 21 includes a first gear 21A that is coaxially connected to the crankshaft 51, a second gear 21B that meshes with the first gear 21A, and an output shaft 21C that is provided on the second gear 21B. The number of teeth of the second gear 21 </ b> B is set to be smaller than the number of teeth of the first gear 21 </ b> A, and the output shaft 21 </ b> C rotates at a faster rotational speed than the crankshaft 51.

  The generator 22 is a known three-phase AC generator and includes a voltage regulator. The rotating shaft of the generator 22 is connected to the output shaft 21 </ b> C of the transmission 21.

  The power generation control device is configured as an LSI device or an embedded electronic device in which a microprocessor, ROM, RAM, and the like are integrated. The power generation control device controls driving of the internal combustion engine 20 according to a signal from a control device (not shown) provided in the vehicle body 2 or a signal from the operation input device 65 provided on the rear side wall 15A of the housing 15. Device.

  As shown in FIG. 3, the 1st connector 27 is provided in the outer surface of 15 A of back side walls, and is connected with the generator 22 via the power line which is not shown in figure. The first connector 27 may be a connector corresponding to a standard such as a single-phase 100V or a single-phase 200V, and is formed to be connectable to a connection terminal of an external electric device. A power converter may be provided on the power line between the generator 22 and the first connector 27, and the power generated by the generator 22 may be converted into a predetermined voltage corresponding to the first connector 27 by the power converter.

  The second connector 28 is provided on the outer surface of the rear end of the upper wall 15B of the housing 15, is connected to the generator 22 via a power line, and is connected to a power generation control device via a signal line (not shown). The second connector 28 is formed so as to be connectable to a vehicle body side connector 69 provided in the vehicle body 2. The vehicle body side connector 69 is connected to the battery 7 and the vehicle control device via the wire harness 71.

  An oil supply port 72 is provided on the outer surface of the rear end of the upper wall 15B of the housing 15. The fuel filler port 72 may be provided directly in the fuel tank 25 or may be connected to the fuel tank 25 via a fuel filler pipe. The oil filler 72 is closed by a cap so as to be opened and closed.

  As illustrated in FIGS. 3 and 9, the storage box 12 includes a box body 73 that is formed in a substantially rectangular parallelepiped shape and that opens on one side, and a lid body 74 that closes the opening 73 </ b> A of the box body 73 so as to be openable and closable. The box body 73 includes an upper wall 73B and a lower wall 73C that are arranged substantially horizontally, a left wall 73D and a right wall (not shown) that extend in the vertical and front-rear directions, and a surface that extends in the vertical and horizontal directions. Has a front wall 73E facing front and rear, and an opening 73A is formed at the rear end portion facing rearward. Each wall of the box 73 is preferably formed from a metal plate. Further, a sound absorbing material (not shown) may be provided at appropriate positions on the inner surface of each wall of the box 73. The sound absorbing material may be a sponge such as urethane. The box body 73 is coupled to the vehicle body 2. In another embodiment, the box body 73 may be formed at least in part by a member constituting the vehicle body 2.

  A notch 75A that is notched forward is formed at the center in the left-right direction of the rear end of the lower wall 73C. Moreover, the groove part 75B extended in the front-back direction is formed in the left-right edge part of the lower wall 73C. A plate-like slider 80 is placed on the upper surface of the lower wall 73C. The left and right width of the slider 80 is smaller than the left and right width of the lower wall 73C.

  As shown in FIGS. 7 and 8, a notch 80 </ b> A that is notched toward the front is formed at the center of the rear end of the slider 80 in the left-right direction. The notch 80A of the slider 80 is formed in a shape corresponding to the notch 75A of the lower wall 73C. Further, on the left and right side portions of the slider 80, convex portions 80B that protrude downward and extend forward and backward are formed. The left and right convex portions 80B protrude into the groove portion 75B of the lower wall 73C. The upper part of each convex part 80B forms a pair of left and right wheel grooves 81 that are recessed downward and extend forward and backward. A first recess 81A is formed at the front end of the bottom of each wheel groove 81, and a second recess 81B is formed at the rear of the bottom.

  As shown in FIGS. 3 and 7, a pair of left and right restricting members 82 extending in the front-rear direction are coupled to the upper surfaces of the left and right groove portions 75B of the lower wall 73C. Each regulating member 82 has a wall portion 82A disposed so as to face the left and right side walls 80D of the slider 80, and a base portion 82B extending from the lower edge of the wall portion 82A in a direction orthogonal to the wall portion 82A. The cross section is formed in an L shape. The wall 82A of each regulating member 82 is formed with a guide hole 82C penetrating left and right and extending forward and backward.

  Pins 83 that protrude outward in the left-right direction and pass through the guide holes 82C are coupled to the front end portions of the left and right side walls 80D of the slider 80. The pins 83 are coaxial with each other and protrude in directions opposite to each other. When the slider 80 moves back and forth with respect to the box 73, each pin 83 moves back and forth in each guide hole 82C. When each pin 83 abuts on the front end of each guide hole 82C, the most immersed position, that is, the storage position of the slider 80 with respect to the box 73 is set, and each pin 83 abuts on the rear end of each guide hole 82C. The most projecting position of the slider 80 with respect to the box 73, that is, the drawing position is set. When the slider 80 is in the pulled-out position, the lower surface of the slider 80 is separated from the upper surface of the lower wall 73C, and the slider 80 can rotate about each pin 83 as a rotation axis. Thereby, the slider 80 can take an inclined posture in which the rear end is positioned below the front end, and functions as a slope. As described above, the slider 80 is slidable between the storage position and the extraction position and is rotatable at the extraction position.

  As shown in FIGS. 7 and 8, a pair of left and right rollers 80 </ b> C are provided at the front ends of the left and right convex portions 80 </ b> B of the slider 80. Each roller is supported by a slider 80 so as to be rotatable about a rotation axis extending in the left-right direction, and its lower edge protrudes below the lower surface of the convex portion 80B. Further, a slider leg portion 80E is projected from the rear portion of the lower surface of the convex portion 80B. The slider leg 80E is formed of a member having a larger coefficient of friction than the slider 80, such as rubber. When the slider 80 is lifted at the rear side, the slider leg 80E is separated from the bottom surface of the groove portion 75B, and is supported on the bottom surface of the groove portion 75B by the roller 80C. In this state, the slider 80 can be easily pushed and pulled.

  As shown in FIGS. 3 and 8, a slider coupling means 86 is provided between the slider 80 and the box body 73 for detachably coupling the slider 80 in the storage position to the box body 73. In the present embodiment, the slider coupling means 86 includes a first locking piece 86A provided at the edge of the notch 75A of the lower wall 73C, and a second locking provided at the center of the rear end of the lower surface of the slider 80. It consists of a piece 86B. The first locking piece 86A is rotatable between a release position and a lock position about a rotation axis extending in the front-rear direction. When the first locking piece 86A is in the locked position, the first locking piece 86A and the second locking piece 86B are engaged with each other, so that the slider 80 in the storage position is fixed to the box 73. . When the first locking piece 86 </ b> A is in the release position, the first locking piece 86 </ b> A and the second locking piece 86 </ b> B are disengaged from each other, and the slider 80 can move with respect to the box body 73.

  As shown in FIGS. 3 and 9, the power generation unit 8 is placed on the slider 80. The left and right wheels 16 are engaged with the wheel grooves 81 to determine the left and right positions with respect to the slider 80, and the power generation unit 8 moves back and forth with respect to the slider 80 when the wheels 16 roll back and forth in the wheel grooves 81. It is possible. Further, when the wheel 16 is fitted in the first recess 81 </ b> A, the power generation unit 8 is positioned at a predetermined placement position with respect to the slider 80. Further, the front and rear movement of the power generation unit 8 with respect to the slider 80 is restricted by fitting the housing leg 17 to the second recess 81B at a predetermined placement position (position where the wheel 16 is fitted to the first recess 81A). Temporary stop is made.

  As shown in FIG. 7, the power generation unit 8 and the slider 80 are detachably coupled by the power generation unit coupling means 87. In the present embodiment, the power generation unit coupling means 87 includes a coupling pin 87A, a pin support portion 87B provided on the right side wall 80D of the slider 80, and a pin coupling hole 87C formed in the power generation unit 8. The coupling pin 87A is formed in an L shape, and one end forms a coupling portion 87D and the other end forms a gripping portion 87E. The pin support portion 87B includes a through hole 87F that extends from side to side and extends through the side wall 80D, a first groove portion 87G that extends the through hole 87F to a circumferential portion in a predetermined radial direction at the outer end portion, and a first groove portion. And a second groove portion 87H extending in the circumferential direction from the inner end of 87G. The pin coupling hole 87C is formed so as to extend to the left and right in the housing 15, and is coaxial with the through hole 87F of the pin support portion 87B when the power generation unit 8 is at a predetermined mounting position with respect to the slider 80. When the power generation unit 8 is in a predetermined mounting position with respect to the slider 80, the coupling pin 87A is inserted by inserting the coupling portion 87D of the coupling pin 87A into the through hole 87F and the pin coupling hole 87C of the pin support portion 87B. The slider 80 and the power generation unit 8 are coupled. By disposing the gripping portion 87E of the coupling pin 87A in the second groove portion 87H of the pin support portion 87B, the withdrawal of the coupling pin 87A from the pin support portion 87B and the pin coupling hole 87C is restricted. The coupling of the slider 80 and the power generation unit 8 is released by extracting the coupling pin 87A from the pin support portion 87B and the pin coupling hole 87C.

  Between the slider 80 and the box 73, a temporary fixing means 88 for temporarily fixing the slider 80 to the box 73 is provided. In the present embodiment, the temporary fixing means 88 includes a rotation member 88A coupled to the right side wall 80D of the slider 80 so as to be rotatable about a rotation axis extending in the left-right direction, and an upper surface of the wall portion 82A of the restriction member 82. And a plurality of locking holes 89 formed in the end face. The rotating member 88A has a coupling end 88B that can be slidably contacted with the upper end surface of the wall portion 82A, can be engaged with the locking hole 89, and a gripping piece 88C for gripping by the user. When the slider 80 moves with respect to the box 73, the coupling end 88B of the rotating member 88A slides on the upper end surface of the wall portion 82A and fits into the locking hole 89 when it corresponds to the locking hole 89, The movement of the slider 80 relative to the box 73 is restricted. The user can release the coupling between the coupling end 88B and the locking hole 89 by gripping the gripping piece 88C and rotating the rotating member 88A. One of the locking holes 89 (rear side locking hole 89) is between the storage position and the withdrawal position, and the second connector 28 and the oil supply port 72 are located temporarily outside the box 73. , The position is determined so as to be coupled to the coupling end 88B. The other one of the locking holes 89 (front locking hole 89) is positioned so as to be coupled to the coupling end 88B in the storage position.

  As shown in FIG. 3, the wire harness 71 is disposed through the upper wall 73B, the front wall 73E, the left wall 73D, and the right wall of the box 73, and is provided with a vehicle body side connector 69. The part is arranged in the box 73. The vehicle body side connector 69 can be connected to the second connector 28 when the power generation unit 8 is at the mounting position on the slider 80. The length of the wire harness 71 disposed in the box body 73 is set so that the slider 80 can move with respect to the box body 73 in a state where the vehicle body side connector 69 and the second connector 28 are connected.

  As shown in FIGS. 3, 5, and 6, the lid body 74 includes a lid body portion 74 </ b> A and a second exhaust pipe 90. The lid main body 74A is formed in a plate shape, is coupled to the rear edge of the left wall 73D via a hinge 91, and rotates between a closed position that closes the opening 73A of the box 73 and an open position that opens the opening 73A. It is possible. Although not shown, the lid body 74A has a latch device that engages with the right side wall when in the closed position. The outer surface of the lid main body 74 </ b> A forms part of the rear side surface of the vehicle body 2. A vent hole 92 penetrating in the thickness direction is formed in the upper part of the lid main body 74A. The lid main body 74A may be formed by combining an outer panel that forms the outer surface and an inner panel that forms the inner surface.

  A second exhaust pipe 90 is coupled to the inner surface of the lid main body 74 </ b> A via a sheet-like heat insulating material 93. A plurality of heat insulating materials 93 are arranged, and are arranged at a distance from each other so as to form an air passage between adjacent heat insulating materials 93.

  The second exhaust pipe 90 has an upstream part 95, an expansion chamber part 96, and a downstream part 97. The expansion chamber portion 96 is formed in a substantially rectangular parallelepiped shape, and is coupled to the lid main body portion 74 </ b> A via a heat insulating material 93. The expansion chamber portion 96 is formed so as to cover most of the inner surface of the lid main body portion 74A, and forms an expansion chamber 96A having a relatively large volume therein.

  The upstream portion 95 is formed in a tubular shape, and is coupled to the expansion chamber portion 96 so as to penetrate the side surface of the expansion chamber portion 96 on the side opposite to the lid main body portion 74 </ b> A side. The upstream side of the upstream portion 95 protrudes from the expansion chamber portion 96 and forms an upstream opening 90A. An outward flange 95 </ b> A is formed around the upstream opening 90 </ b> A of the upstream portion 95. A seal member 99 is coupled to the end surface of the flange 95A. The seal member 99 is formed from a material having flexibility and heat resistance. The downstream end of the upstream portion 95 is bent in the expansion chamber and extends upward to form an open end. The cross-sectional area (flow channel cross-sectional area) of the expansion chamber 96 </ b> A is formed larger than the cross-sectional area of the downstream end of the upstream portion 95.

  The downstream portion 97 is formed in a rectangular tube shape, extends downward from the lower portion of the expansion chamber portion 96, has a lower end opened, and forms a second exhaust outlet 90B (downstream side opening).

  A drain hole 95B penetrating the upstream portion 95 in the thickness direction is formed in a portion of the upstream portion 95 located in the lowest position in the expansion chamber 96A. A plug 101 that opens and closes the drain hole 95B is screwed into the drain hole 95B. The user can discharge the water accumulated in the upstream portion 95 to the outside through the expansion chamber portion 96 and the downstream portion 97 by removing the plug 101 and opening the drain hole 95B.

  When the lid body 74 is in the closed position, the flange 95A of the upstream portion 95 of the second exhaust pipe 90 has both the discharge port 58 and the first exhaust outlet 49 in the rear side wall 15A of the housing 15 through the seal member 99. It touches the part surrounding As a result, the discharge port 58 and the first exhaust outlet 49 communicate with the upstream opening 90 </ b> A of the second exhaust pipe 90. When the lid 74 is in the closed position, the downstream portion 97 of the second exhaust pipe 90 is disposed in the cutout portion 75A of the lower wall 73C, and the second exhaust outlet 90B faces the outside of the box 73. Be placed.

  In the mounted state in which the slider 80 is disposed at the storage position with respect to the box body 73, the power generation unit 8 is disposed at the mounting position with respect to the slider 80, and the lid body 74 is disposed at the closed position, the discharge port of the power generation unit 8 58 and the first exhaust outlet 49 are connected to the upstream opening 90 </ b> A of the second exhaust pipe 90. When the internal combustion engine 20 of the power generation unit 8 is driven in the mounted state, the air is passed through the vent 92 of the lid 74, the suction port 57 of the power generation unit 8, and the air passage 62 by the rotation of the impeller 52. Sucked into. Part of the air sucked into the inner chamber 63 is sucked into the combustion chamber from the intake inlet 41 through the intake pipe 34 and used for combustion. Exhaust gas (burned gas) generated by combustion in the combustion chamber passes through the first exhaust pipe 35 and flows from the first exhaust outlet 49 to the upstream portion 95 of the second exhaust pipe 90. The remainder of the air sucked into the inner chamber 63 flows on the outer surface of the engine body 30, passes through the discharge port 58, and flows to the upstream portion 95 of the second exhaust pipe 90.

  In the upstream portion 95 of the second exhaust pipe 90, the exhaust that has passed through the first exhaust outlet 49 and the air that has passed through the discharge outlet 58 are mixed. As a result, the exhaust is diluted with air, and the temperature is lower than in the case of only exhaust. The diluted exhaust gas expands by entering the expansion chamber 96A from the downstream end of the upstream portion 95, and the pressure and temperature decrease. Thereafter, the diluted exhaust flows from the expansion chamber 96A to the downstream portion 97 and is discharged from the second discharge port. Thus, the second exhaust pipe 90 has a function of reducing the temperature and pressure of the exhaust, and functions as a silencer. The silencing capability of the second exhaust pipe 90 is preferably higher than the silencing capability of the first silencer 48.

  Next, a procedure for unloading the power generation unit 8 from the vehicle body 2 will be described. When the mounted power generation unit 8 is lowered (removed) from the vehicle body 2, the user first opens the lid 74 from the closed position to the open position (see FIG. 3). As a result, the second exhaust pipe 90 is separated from the rear side wall 15A of the housing 15, and the connection between the discharge port 58 and the first exhaust outlet 49 and the upstream opening 90A of the second exhaust pipe 90 is released. Next, the user releases the slider coupling means 86. Specifically, the user displaces the first locking piece 86A to the release position, and releases the engagement between the first locking piece 86A and the second locking piece 86B. Further, the temporary fixing means 88 is released. Specifically, the gripping piece 88C is gripped to rotate the rotating member 88A, and the coupling end 88B is detached from the front locking hole 89. By these operations, the slider 80 can be moved with respect to the box 73.

  Next, the user raises the handle 18 of the power generation unit 8 from the storage position to the use position, and lifts the rear portion of the power generation unit 8. At this time, since the power generation unit 8 and the slider 80 are coupled to each other by the power generation unit coupling means 87, the rear portion of the slider 80 is lifted together with the power generation unit 8. As a result, the slider leg 80E is separated from the lower wall 73C, and the slider 80 is supported on the lower wall C73 by the rollers 80C. In this state, the user can move the slider 80 back and forth with respect to the box 73 with a relatively small force.

  When the user pulls the handle 18 rearward to move the slider 80 rearward, the temporary fixing means 88 is actuated (that is, the coupling end 88B is locked in the rear locking hole 89), and the slider 80 is temporarily fixed. Movement is restricted by position. When in the temporary fixing position, the second connector 28 is positioned outside the box 73. The user removes the wire harness 71 from the second connector 28. In addition, since the oil supply port 72 is located outside the box 73 at the temporary fixing position, it is possible to supply oil while the power generation unit 8 is placed on the slider 80. By restricting the movement of the slider 80 at the temporary fixing position, unintentional withdrawal of the slider 80 is prevented.

  When the slider 80 is moved from the temporarily fixed position to the pulled-out position, the user grips the gripping piece 88C, rotates the rotating member 88A, and releases the engagement between the coupling end 88B and the locking hole 89. Thereby, the slider 80 can be moved. Subsequently, the user pulls the slider 80 backward with respect to the box 73 until the pin 83 contacts the rear end of the guide hole 82C. When the slider 80 is in the pulled-out position, a space for rotation is formed below the slider 80, and the slider 80 is allowed to tilt. Then, the slider 80 on which the power generation unit 8 is placed by gravity rotates downward with the pin 83 as a rotation axis (see FIG. 9).

  Next, the user releases the power generation unit coupling means 87 and makes the power generation unit 8 movable relative to the slider 80. Specifically, the coupling state of the power generation unit 8 and the slider 80 is released by extracting the coupling pin 87A from the pin support portion 87B and the pin coupling hole 97C. In this state, since the housing leg 17 is engaged with the second recess 81B, the position of the power generation unit 8 with respect to the slider 80 is maintained. When the user lifts the handle 18 and separates the housing leg 17 from the second recess 81B, the wheel 16 travels in the wheel groove 81, and the power generation unit 8 moves from the slider 80 to the ground. Thereby, the power generation unit 8 is removed from the vehicle body 2.

  When the removed power generation unit 8 is mounted on the vehicle body 2, the user first opens the lid 74 and pulls out the slider 80 to ground the rear end. In this state, the user lifts the handle 18 to move the housing leg 17 away from the ground, pushes the power generation unit 8 to be grounded on the wheel 16, and moves it onto the slider 80 (see FIG. 9). At this time, the wheel 16 is engaged with the wheel groove 81 of the slider 80, and the power generation unit 8 is restricted from moving in the left-right direction with respect to the slider 80. The power generation unit 8 is pushed up on the slider 80 until the wheel 16 passes over the second recess 81B and fits into the first recess 81A. Since the wheel 16 is fitted into the first recess 81 </ b> A, the user can know the proper placement position of the power generation unit 8 with respect to the slider 80. When the rear side of the power generation unit 8 is lowered onto the slider 80 in a state where the wheel 16 is fitted in the first recess 81 </ b> A, the housing leg 17 is fitted into the second recess 81 </ b> B, and the position of the power generation unit 8 with respect to the slider 80. Is determined.

  Next, the user couples the slider 80 and the power generation unit 8 to each other by the power generation unit coupling means 87. Specifically, the user inserts the coupling pin 87A into the through hole 87F and the pin coupling hole 87C of the pin support portion 87B, and then rotates the coupling pin 87A to place the grip portion 87E in the second groove portion 87H.

  Next, the user lifts the handle 18 and displaces the rear end portion of the slider 80 together with the power generation unit 8 to make the posture of the slider 80 horizontal. Since the slider 80 is horizontal, it can be moved to the storage position. Next, the user pushes the handle 18, pushes the slider 80 together with the power generation unit 8, and moves the slider 80 to the storage position (see FIG. 3). At this time, the rear side of the slider 80 is kept slightly lifted so that the slider leg 80E does not contact the bottom surface of the groove 75B.

  When the slider 80 moves toward the storage position, the movement of the slider 80 is once restricted by the temporary fixing means 88 at the temporary fixing position. At this temporarily fixed position, the user connects the second connector 28 and the vehicle body side connector 69. Then, the temporary fixing means 88 is released, and the slider 80 is moved to the storage position.

  Next, the user fixes the slider 80 to the lower wall 73 </ b> C at the storage position by the slider coupling means 86. Then, the user displaces the lid body 74 to the closed position and closes the storage box 12. As a result, the flange 95A of the second exhaust pipe 90 contacts the periphery of the discharge port 58 and the first exhaust outlet 49 on the outer surface of the rear side wall 15A of the power generation unit 8 via the seal member 99, and the upstream side of the second exhaust pipe 90. The side opening 90A, the discharge port 58, and the first exhaust outlet 49 are connected. In this way, the power generation unit 8 is mounted.

  In the electric vehicle 1 configured as described above, the power generation unit 8 in the mounted state functions as a part of the vehicle. Further, the power generation unit 8 can be detached from the vehicle body 2 and used as a general-purpose generator independent of the vehicle body 2.

  In the electric vehicle 1 equipped with the power generation unit 8, the vehicle body 2 side control device outputs a signal to the power generation control device based on, for example, a request output based on the accelerator operation of the occupant or the potential of the battery 7, and the power generation control device Controls the internal combustion engine 20. The power generation unit 8 supplies power to the battery 7 when the required output is large or when the potential of the battery 7 is low. On the other hand, when power supply to the battery 7 is unnecessary, the internal combustion engine 20 may be driven in an idle state or stopped.

  The electric vehicle 1 can supply electric power from the first connector 27 to the outside by opening the lid 74 in the stopped state and driving the power generation unit 8 in the mounted state. Further, the power generation unit 8 can supply power to the outside from the first connector 27 alone while being removed from the vehicle body 2.

  When the power generation unit 8 is in the mounted state, the power generation unit 8 is disposed inside the storage box 12, so that noise of the power generation unit 8 is reduced. Since the first exhaust pipe 35 is connected to the second exhaust pipe 90 in the mounted state, the power generation unit 8 can exhaust the exhaust to the outside of the storage box 12. Further, since the second exhaust pipe 90 functions as a silencer, the exhaust sound of the internal combustion engine 20 is further suppressed, and the noise of the power generation unit 8 is reduced. In the state where the power generation unit 8 is detached from the vehicle body 2, the second exhaust pipe 90 is separated from the power generation unit 8, so that the portability of the power generation unit 8 is not impaired.

  In addition, since the second exhaust pipe 90 is provided on the lid body 74 disposed at the rear end portion of the vehicle body 2, the inflow of exhaust into the cabin is suppressed. Since the upstream opening 90A of the second exhaust pipe 90 is connected to the first exhaust outlet 49 and the discharge port 58, the exhaust gas that has passed through the first exhaust outlet 49 has passed through the discharge port 58 in the second exhaust pipe 90. Diluted by air, the temperature drops. Thereby, expansion | swelling of exhaust_gas | exhaustion at the time of exhausting from the 2nd exhaust outlet 90B is suppressed, and noise is reduced. Moreover, the heat damage of the 2nd exhaust pipe 90 and its surrounding member is suppressed. Further, since the second exhaust pipe 90 has the expansion chamber 96A, the exhaust gas expands in the expansion chamber 96A and the pressure is reduced, and noise when being discharged from the second exhaust outlet 90B is reduced.

  In the present embodiment, since the discharge port 58 is disposed so as to surround the first exhaust outlet 49, the connection between the discharge port 58 and the first exhaust outlet 49 and the upstream opening 90 </ b> A of the second exhaust pipe 90 is established. Easy. Further, since the heat insulating material 93 is interposed between the second exhaust pipe 90 and the lid main body portion 74A, the heat of the second exhaust pipe 90 is hardly transmitted to the lid main body portion 74A, and the lid main body portion 74A Temperature rise is suppressed.

  Since the power generation unit 8 according to the present embodiment can be detached from the vehicle body 2, when the electric vehicle 1 is used for low-distance travel, the weight of the vehicle body 2 is reduced by lowering the power generation unit 8 from the vehicle body 2. The power consumption required for traveling can be reduced. Moreover, since the electric power generation unit 8 can be removed and carried in the place where the electric vehicle 1 cannot enter, versatility is high.

  Although the description of the specific embodiment is finished as described above, the present invention is not limited to the above embodiment and can be widely modified. For example, the configurations of the slider coupling means 86, the power generation unit coupling means 87, and the temporary fixing means 88 described in the above embodiment are examples, and various known means can be applied.

1: Electric vehicle (vehicle with generator)
2: Car body 8: Power generation unit 12: Housing box 15: Housing 16: Wheel 17: Housing leg 18: Handle 20: Internal combustion engine 22: Generator 28: Second connector 71: Wire harness 72: Oil filler port 73: Box 73A: Opening 80: Slider 81: Wheel groove 81A: First recess 86: Slider coupling means 87: Power generation unit coupling means 88: Temporary fixing means

Claims (7)

A box that is coupled to the vehicle body and that opens toward the outer side of the vehicle body in the horizontal direction, and a storage box that includes a lid that opens and closes the opening of the box;
The box body is slidably supported between a storage position accommodated in the box body and a drawer position protruding outward from the opening from the opening, and in the drawer position, the box body A slider that can be rotated with respect to the front end, and can take an inclined posture in which the tip is positioned below the base end; and
A portable power generation unit placed on the slider and housed inside the box;
A generator-equipped vehicle comprising: power generation unit coupling means for detachably coupling the power generation unit to the slider.   The generator-equipped vehicle according to claim 1, wherein a tip of the slider is grounded in an inclined posture. The power generation unit has wheels,
The generator-equipped vehicle according to claim 2, wherein the slider has a wheel groove that extends in a sliding movement direction of the slider and receives the wheel.   The generator-equipped vehicle according to claim 3, wherein a concave portion into which the wheel is fitted is formed in a part of a bottom portion of the wheel groove.   The generator-equipped vehicle according to any one of claims 1 to 4, further comprising slider coupling means for detachably coupling the slider in the storage position to the box. A fuel filler provided in an upper portion of the power generation unit;
A temporary fixing means for temporarily fixing the slider at the temporary fixing position between the storage position and the drawer position to the box;
In the temporary fixing position, the oil filler port is located outside the box,
The temporary fixing means restricts the movement of the slider at the temporary fixing position when the slider moves from the storage position toward the pulling position. The generator-equipped vehicle according to any one item.   The generator according to claim 6, wherein a connector to which a wire harness extending from the vehicle body is connected is provided at a portion of the power generation unit located outside the box in the temporary fixing position. Installed vehicle.

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