JP2018149009A - Electric mobility and battery mounting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide electric mobility capable of facilitating battery mounting and a battery mounting method. SOLUTION: In this electric mobility, a case 210 having a built-in secondary battery, a handle part 230 arranged on the back side of the case 210 with respect to a center of gravity G of the battery 200, and a battery part by a handle part 230. The battery 200 has a guide surface 216 facing downward when the battery 200 is lifted, and the longitudinal axis AL of the case 210 is tilted at a second angle with respect to the vertical axis VL when the battery 200 is lifted by the handle 230. As a result, the guide surface 216 is inclined downward from the back surface to the front surface of the case 210, and in this state, the guide surface 216 is above the first engaging portion 39 provided in the housing space 38 for housing the case 210. Then, the guide surface 216 slides on the first engaging portion 39 due to the downward inclination, and the second engaging portion 216a of the case 210 engages with the first engaging portion 39. [Selection diagram] Fig. 5

Description

  The present invention relates to electric mobility and a battery mounting method.

This type of electric mobility includes a pair of front wheels that are omnidirectional wheels, a rear wheel driven by a motor, a battery that supplies power to the motor, and a control device that controls the motor. The thing fixed to the lower flame | frame etc. is known (for example, refer patent document 1).
In addition, a structure in which the battery is detachably mounted under the seat in order to facilitate the charging of the battery is also known (see, for example, Patent Document 2).

JP-A-2015-150324 Japanese Patent Laid-Open No. 11-137611

  In the latter battery mounting structure, a handle portion is provided at one end in the longitudinal direction of a long and narrow battery case in which a secondary battery is built, and a battery housing portion that opens to the front of the vehicle is provided below the seat. Then, the battery is tilted so that the longitudinal axis of the battery case is in the horizontal position, and the other end of the battery case is disposed at the entrance of the battery housing portion in that state, and then the battery case is directed toward the rear of the vehicle. By pushing and pushing, the battery is installed in the battery housing portion.

In the latter battery mounting structure, since the handle is disposed outside the battery housing portion with the battery mounted in the battery housing portion, the battery is directed toward the front of the vehicle with the handle portion. By pulling, the battery can be removed from the battery housing portion.
However, the battery has a weight of at least several kg in order to ensure the cruising distance and running performance of electric mobility. In order to put it in and out of the battery housing part in a state where the battery is in the sideways posture, it is necessary to apply a considerable force in the horizontal direction to the handle part of the battery.

  In addition, passengers of electric mobility often have difficulty in legs. For this reason, it is difficult to apply a horizontal force to the handle portion when the hand portion of the battery in a sideways posture is gripped by reaching under the seat. Therefore, when an electric mobility rider sits on the seat and attaches / detaches the battery, a considerable force is applied to the arm, waist, and the like, which may be a burden on the rider.

  The present invention has been made in view of such circumstances, and an object thereof is to provide an electric mobility and a battery mounting method capable of facilitating battery mounting.

In order to solve the above problems, the present invention employs the following means.
According to a first aspect of the present invention, there is provided an electric mobility including a battery having a case with a long upper and lower case in which a secondary battery is incorporated, and a vehicle body to which the battery is mounted. And a space provided below the seating surface of the seat for accommodating the case of the battery, the rear surface of the accommodated case facing the outside of the vehicle body, A storage space configured such that the longitudinal axis is inclined at a first angle with respect to the vertical axis; and a first engagement portion provided in the storage space, wherein the battery is provided on a front surface of the case. A battery-side connector, a handle portion attached to the case so as to be disposed above the center of gravity of the battery and on the back side of the case with respect to the center of gravity. A second engaging portion that is engageable with the first engaging portion, and a guide surface provided on the case so as to face downward when the battery is lifted by the handle portion The handle is disposed on the back side of the case with respect to the center of gravity, so that the longitudinal axis of the case becomes the vertical axis when the battery is lifted by the handle. The guide surface is inclined at a second angle smaller than the first angle, whereby the guide surface is inclined downward from the back surface toward the front surface, and the battery is lifted by the handle portion, and When the guide surface is placed on the first engaging portion, the guide surface slides on the first engaging portion due to the weight of the battery due to the downward slope, and thereby the first The case is configured such that the second engagement portion is engaged with the engagement portion, and the case is engaged with the first engagement portion in a state where the second engagement portion is engaged with the first engagement portion. When tilted around the joint, the case is accommodated in the accommodation space, and the battery-side connector is connected to a vehicle body-side connector provided in the accommodation space.

  In this aspect, when the battery is lifted by the handle portion, the longitudinal axis of the case is inclined at a second angle with respect to the vertical axis, and thereby the guide surface of the case is inclined downward from the back of the case toward the front, When the guide surface is placed on the first engagement portion in this state, the guide surface slides on the first engagement portion due to the downward inclination of the guide surface, and the second engagement portion is moved to the first engagement portion. Engage. Therefore, the second engaging portion can be engaged with the first engaging portion simply by lifting the handle and placing the guide surface on the first engaging portion. Engagement work between the engaging portion and the second engaging portion is easy.

Further, when the case is tilted to the first angle larger than the second angle with the second engagement portion engaged with the first engagement portion, the battery side connector is connected to the vehicle body side connector. The
As described above, the battery can be mounted by the operation of lifting the battery by the handle portion, the operation of placing the guide surface on the first engagement portion, and the operation of tilting the battery.

  In the above aspect, the battery-side connector includes a battery-side connector body to which at least one power terminal is fixed, and a flexible support member that movably supports the battery-side connector body with respect to the case. The vehicle body side connector has a vehicle body side connector main body to which a power terminal connected to the power terminal of the battery side connector is fixed, and a magnet is provided on at least one of the battery side connector main body and the vehicle body side connector main body. It is preferable that the battery-side connector body and the vehicle-body-side connector body are configured to be connected by the magnetic force of the magnet.

  In this configuration, when the case is tilted to the first angle, the battery side connector main body and the vehicle body side connector main body are attracted to each other by the magnetic force of the magnet, whereby the battery side connector main body and the vehicle body side connector main body are attracted to each other. And the battery-side connector body and the vehicle body-side connector body can be securely connected.

  In the above aspect, the vehicle body includes a base portion supported by front and rear wheels, and a seat support portion that extends upward from the base portion so as to incline forward of the vehicle body and supports the seat on an upper end side. Preferably, the housing space is open to the back surface of the seat support portion, and the back surface of the case attached to the housing space faces the rear of the vehicle body.

  When the seat support portion is inclined forward of the vehicle body in this way, the back surface on the upper end side of the seat support portion is disposed directly below the seat. For this reason, the space between the back surface of the seat support portion and the lower surface of the seat is narrowed, but the battery is tilted at a second angle smaller than that when the battery is lifted by the handle portion, and the guide surface in that state. Since the first engagement portion and the second engagement portion can be engaged by placing the first engagement portion on the first engagement portion, the rear surface of the seat support portion and the lower surface of the seat Work in a narrow space can be reduced or eliminated.

The said aspect WHEREIN: It is preferable that the said handle part is being fixed to the said back surface of the said case.
Thus, if the handle portion is fixed to the back surface of the case that is long in the vertical direction, it seems that the longitudinal axis of the case is inclined when the battery is lifted by the handle portion. However, in this aspect, by separating the distance between the handle portion and the center of gravity of the case in the front-rear direction of the case, the guide surface reliably tilts downward when the battery is lifted, and the battery is attached smoothly. This is extremely advantageous.

The said aspect WHEREIN: It is preferable that the brake lamp is provided in the said back surface of the said case.
For example, when the battery is mounted on the back side of the seat support portion, the longitudinal axis of the battery case is tilted forward of the vehicle body at a first angle with respect to the vertical axis when the battery is mounted. You will face up. By providing a brake lamp on the back of the battery case, the visibility of the brake lamp from pedestrians, automobile drivers, etc. can be expected.

In the above aspect, when the battery protrudes from the front surface of the case and is placed on a flat surface with the front surface facing down, contact prevention prevents contact between the flat surface and the battery-side connector. It is preferable to have a member.
With this configuration, it is possible to reduce dirt, damage, breakage, and the like of the battery-side connector when the battery is placed so that the front surface of the case faces downward.

  A second aspect of the present invention is a battery mounting method for mounting a battery having a long upper and lower case with a built-in secondary battery so that the case is accommodated in an accommodation space provided in electric mobility. The battery is disposed above the battery-side connector provided on the front surface of the case and the center of gravity of the battery, and on the back side of the case with respect to the center of gravity. It has a handle portion attached to the case, and a guide surface provided on the lower surface of the case, so that the guide surface is inclined downward from the back surface of the case toward the front surface, The step of lifting the battery by the handle portion and the guide surface having the downward inclination are placed on a first engagement portion provided in the accommodation space. Due to the downward slope, the guide surface slides on the first engagement portion, and the first engagement portion engages with the second engagement portion provided on the case; and In a state where the second engaging portion is engaged with the first engaging portion, the case is tilted around the first engaging portion, whereby the case is accommodated in the accommodating space, and Connecting the battery side connector to a vehicle body side connector provided in the housing space.

  According to the present invention, it is possible to facilitate the mounting of the battery.

It is a back perspective view of electric mobility concerning one embodiment of the present invention. It is a front perspective view of the electric mobility of this embodiment. It is a bottom view of the electric mobility of this embodiment. It is a principal part back perspective view of the state where the battery of the electric mobility of this embodiment was removed. It is principal part sectional drawing of the electric mobility of this embodiment. It is a back side perspective view of the battery of this embodiment. It is a front side perspective view of the battery of this embodiment. It is a side view of the battery of this embodiment. It is operation | movement explanatory drawing of the battery of this embodiment. It is a block diagram which shows schematic structure of the control unit of the electric mobility of this embodiment. It is principal part sectional drawing of the electric mobility of this embodiment.

An electric mobility according to an embodiment of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 to 3, the electric mobility includes a vehicle body 100 and a battery 200 attached to the vehicle body 100.
The vehicle body 100 includes a pair of front wheels 10, a pair of rear wheels 20, a body 30 supported by the front wheels 10 and the rear wheels 20, a seat unit 40 supported by the body 30, a pair of front wheels 10 and a pair of rear wheels. A motor 50 for driving at least one of the wheels 20.

In the present embodiment, a motor 50 is connected to each of the pair of rear wheels 20, and the two rear wheels 20 can be driven by each motor 50. You may comprise so that the driving force of the motor 50 may be transmitted also to a pair of front wheels 10 via power transmission means, such as a belt and a gear.
Each front wheel 10 is supported by a base frame 32a described later via an axle 11 and a suspension 12. Each front wheel 10 has a ground contact surface formed by a plurality of rollers 13 and 14 arranged in the circumferential direction. The outer shape of the roller 13 is smaller than the outer shape of the roller 14, and the roller 13 and the roller 14 are alternately arranged in the circumferential direction.

  More specifically, each front wheel 10 includes a hub 15 attached to the axle 11, and a plurality of roller support shafts arranged in the circumferential direction of the hub 15 and supported by the hub 15, and a plurality of rollers 13, 14. Are respectively rotatably supported on roller support shafts. The hub 15 may be directly attached to the axle 11 via a bearing or the like, or may be attached to the axle 11 via a buffer member or other intermediate member.

With this configuration, each of the rollers 13 and 14 can rotate about an axis extending in a direction intersecting the radial direction of the axle 11, and each front wheel 10 can move in all directions relative to the ground plane. It is a direction moving wheel.
In the present embodiment, each rear wheel 20 is provided on an axle (may be common with the main shaft of the motor 50), a hub 22 attached to the axle, and an outer peripheral side of the hub 22, and the outer peripheral surface has rubber-like elasticity. Although the outer peripheral member 23 is made of a material, an omnidirectional moving wheel may be used similarly to the front wheel 10. Further, each front wheel 10 may be the same wheel as the rear wheel 20, and means for changing the steering angle of the front wheel 10 and / or the rear wheel 20 may be provided.

The body 30 includes a base portion 32 that extends along the ground, and a seat support portion 33 that extends upward from the rear end side of the base portion 32 so as to incline forward of the vehicle body 100 and to which the seat unit 40 is attached. Have
The base portion 32 is a metal base frame 32 a that supports the suspension 12 of the front wheel 10 and the motor 50 of the rear wheel 20, and a portion that covers at least partially the base frame 32 a and places a rider's feet sitting on the seat unit 40. And a plastic base cover 32b used for a luggage placement section or the like.

  The seat support portion 33 is supported or fixed on the rear end side of the base frame 32a, and has a support portion frame 34 that extends obliquely upward, and a plastic support portion cover 35 that covers the support portion frame 34 (FIG. 4). reference). As shown in FIG. 5, a seat attachment member 36 is attached to the upper end side of the support portion frame 34.

  The seat mounting member 36 is a member having a longitudinal length in the vertical direction, and a plurality of positioning holes 36a are provided at intervals in the vertical direction. Each positioning hole 36a penetrates the seat mounting member 36 in a direction perpendicular to the longitudinal direction thereof. A cylindrical portion 34a through which the seat mounting member 36 is inserted in the vertical direction is provided on the upper end side of the support portion frame 34, and a support portion side hole 34b penetrating in the front-rear direction of the electric mobility is provided in the cylindrical portion 34a. Yes. The inner shape of the cylindrical portion 34 a is slightly larger than the outer shape of the seat mounting member 36.

  The seat mounting member 36 is inserted into the cylindrical portion 34a, and any positioning hole 36a and the support portion side hole 34b are aligned, and the positioning member 37 is inserted into the support portion side hole 34b and the positioning hole 36a. A seat attachment member is attached to the body 30 by attaching to the cylindrical part 34a. In addition, the height position of the seat mounting member 36 relative to the body 30 can be adjusted by changing the positioning hole 36 a through which the positioning member 37 is inserted.

  As shown in FIGS. 1 and 2, the seat support portion 33 includes a front surface 33a, a back surface 33b, and a pair of side surfaces 33c disposed between the front surface 33a and the back surface 33b. As shown in FIGS. 4 and 5, the seat support portion 33 is formed with an accommodation space 38 for accommodating the case 210 of the battery 200, and the accommodation space 38 opens toward the rear of the vehicle body 100. The front surface 33a and the back surface 33b are inclined forward from the bottom toward the front of the vehicle body 100, and the back surface 33b is provided with an opening for the accommodation space 38. As shown in FIG. 5, a control unit 60 described later is disposed in the seat support portion 33.

  The seat unit 40 is fixed below the seat surface portion 41, the backrest portion 42, the pair of control arms 43 in the vehicle body width direction, and the seat surface portion 41, and is attached to and detached from the seat mounting member 36 of the seat support portion 33. And a seat frame that can be freely attached.

  An operation portion 43a having an operation lever 43b is provided at the upper end of the right control arm 43. When no force is applied, the operation lever 43b is moved by a biasing member (not shown) disposed in the operation portion 43a. It is arranged at the neutral position, and the rider can displace the operation lever 43b in the right direction, the left direction, the front direction, and the rear direction with respect to the neutral position with the right hand.

  A signal corresponding to the displacement direction and the displacement amount of the operation lever 43b is transmitted from the operation unit 43a to the control unit 60 described later, and each motor 50 is driven according to the signal. For example, when the operation lever 43b is displaced in the forward direction with respect to the neutral position, a signal for rotating each motor 50 toward the front of the vehicle is transmitted, and the electric mobility advances at a speed corresponding to the displacement amount of the operation lever 43b. . Further, when the operation lever 43b is displaced diagonally left forward with respect to the neutral position, a signal for rotating the left motor 50 toward the front of the vehicle at a slower speed than the right motor 50 is transmitted, and the electric mobility is operated by the operation lever. The vehicle advances while turning left at a speed corresponding to the amount of displacement 43b.

  The upper end of the left control arm 43 is provided with a setting unit 43c capable of performing various settings related to electric mobility such as maximum speed setting, operation mode setting, electric mobility lock setting, and the like. Operating buttons, a display device and the like are provided. For example, as an example of the driving mode, an energy saving driving mode that suppresses power consumption, a sports driving mode that emphasizes driving performance without reducing power consumption, a normal driving mode between the energy saving driving mode and the sports driving mode, etc. Is mentioned. Examples of the setting of electric mobility lock include setting of a personal identification number for locking, setting of unlock timing, and the like. The setting signal of the setting unit 43c is transmitted to the control unit 60 described later, and the setting of the electric mobility is registered or changed in the control unit 60.

  As shown in FIGS. 6 to 8, the battery 200 includes a vertically long plastic case 210 in which a secondary battery such as a lithium ion secondary battery is incorporated, and a battery-side connector provided on the front surface 211 of the case 210. 220, and a handle portion 230 attached to the upper end side of the case 210 on the back surface 212 of the case 210. The case 210 as a whole has a shape close to a rectangular parallelepiped, and has a longitudinal axis AL along the longitudinal direction of the case 210.

  The longitudinal axis AL is obtained, for example, by obtaining a centroid of the outer shape of each cut surface when the case 210 is cut in a direction perpendicular to the longitudinal direction at a plurality of locations in the longitudinal direction, and passes through or along each centroid. It can be a straight line or a curved line. When case 210 has a rectangular parallelepiped shape, a cylindrical shape, or a prismatic shape, a straight line passing through the center of the upper surface and the center of the lower surface of case 210 can be used as longitudinal axis AL.

  The secondary battery is often the heaviest part in the battery 200, and in this case, the center of gravity G of the battery 200 depends on the position of the secondary battery in the case 210.

  Two side surfaces 213 and 214, an upper surface 215, and a lower surface (guide surface) 216 are provided between the front surface 211 and the back surface 212 of the case 210. The side surfaces 213 and 214 are arranged at positions facing each other, and are respectively surfaces that extend in a direction substantially along the longitudinal axis AL. The upper surface 215 and the lower surface 216 are arranged at positions facing each other, and are surfaces extending in a direction substantially perpendicular to the longitudinal axis AL.

Overhang portions 217 are provided between the side surfaces 213 and 214, the upper surface 215, and the lower surface 216 and the rear surface 212, and the overhang portions 217 project outward in the width direction of the vehicle body 100 from the side surfaces 213 and 214. It protrudes outward in the vertical direction from H.216.
The handle portion 230 is attached to the back surface 212 through the pair of connection portions 231 so as to protrude rearward of the vehicle body 100. For this reason, the distance between the longitudinal axis AL and the handle portion 230 is larger than the distance between the longitudinal axis AL and the back surface.

  The accommodation space 38 is a space in which the case 210 of the battery 200 can be accommodated. As shown in FIGS. 4 and 5, a part or all of the opening of the accommodation space 38 in the circumferential direction has a back side of the accommodation space 38. An opening area changing portion 38a for reducing the opening area is provided (from the back surface 33b provided with an opening in the seat support portion 33 toward the front surface 33a). Specifically, as the opening area changing portion 38 a, the width direction (short direction) and the vertical direction (longitudinal direction) of the accommodation space 38 as a part of the circumferential direction of the opening portion of the accommodation space 38 increases from the depth of the accommodation space 38. ) Is formed.

The opening area changing portion 38a has a shape corresponding to the overhanging portion 217 of the case 210. When the case 210 is disposed at a predetermined receiving position with respect to the receiving space 38, the overhanging portion 217 and the opening area changing portion 38a are arranged. It arrange | positions so that it may oppose. This prevents intrusion of dust, dirt, rainwater, etc. into the accommodation space 38. Preferably, the overhang portion 217 and the opening area changing portion 38a are close to or in contact with each other.
When the case 210 is arranged at the predetermined accommodation position, as shown in FIG. 5, the battery side connector 220 is connected to the vehicle body side connector 90 provided in the accommodation space 38, and the longitudinal axis AL is set to the vertical axis VL. In contrast, the vehicle is tilted forward at the first angle α.

  The battery-side connector 220 includes a cylindrical connector body 221 having a plurality of power terminals 221a and a plurality of signal terminals 221b provided on the front surface, one end side connected to the outer peripheral surface of the connector body 221 and the other end side a case 210. And a support member 222 that supports the connector main body 221 with respect to the case 210. The support member 222 is made of a material having rubber-like elasticity and has flexibility. The support member 222 may be composed of a flexible material and a metal spring. Since the connector body 221 is supported by the support member 222, the connector body 221 can move with respect to the case 210 within the range of elastic deformation of the support member 222.

  On the other hand, the vehicle body side connector 90 also has a connector body 91 provided with a plurality of power terminals 91a, a plurality of signal terminals 91b and the like on the front surface. In the present embodiment, each power terminal 91a protrudes from the connector body 91, and each power terminal 221a is a hole into which each power terminal 91a is inserted. In addition, the hole of each power terminal 91a has a flare-shaped portion in the vicinity of the opening, and the cross-sectional area of the flare-shaped portion gradually increases toward the opening.

  At least one of the connector main body 221 and the connector main body 91 has a magnet. Since the connector main body 221 is movable within the range of elastic deformation of the support member 222 with respect to the case 210, when the case 210 is moved toward the predetermined storage position in the storage space 38, the connector main body 221 and the connector main body are moved. 91 are mutually positioned by magnetic force. Further, since the connector main body 221 can move within the range of elastic deformation of the support member 222 with respect to the case 210, the support member can be used even if a positional deviation occurs between each power terminal 221a and each power terminal 91a. The positional deviation is eliminated by the elastic deformation of 222.

A pair of first engaging portions 39 arranged in the width direction of the vehicle body 100 is provided in the vicinity of the opening on the lower end side of the accommodation space 38. One first engagement portion 39 projects into the accommodation space 38 from one end in the width direction, and the other first engagement portion 39 projects into the accommodation space 38 from the other end in the width direction. . In the present embodiment, each first engagement portion 39 is made of metal and has a cylindrical shape, but may be made of other materials and have other shapes.
On the other hand, a pair of second engaging portions 216 a having a concave shape that can be engaged with the pair of first engaging portions 39 are provided at positions near the back surface 212 on the lower surface 216 of the case 210 of the battery 200. ing.

  A pair of contact prevention members 211 a that protrude from the front surface 211 are provided on the upper surface 215 side of the case 210. The pair of contact prevention members 211a are made of a material having rubber-like elasticity, and are fixed to the front surface 211 so as to be separated from each other in the width direction of the vehicle body 100. The pair of contact prevention members 211a are configured such that when the battery 200 is placed on a flat surface with the front surface 211 facing down, the battery-side connector 220 and the flat surface are separated. It is preferable that the battery-side connector 220 and the plane be configured to be separated from each other by 1 cm or more.

  A brake lamp 218 is provided on the back surface 212 of the case 210. The brake lamp 218 includes a substrate on which a light emitting element such as an LED is mounted, and the substrate is configured such that electric power is supplied from the secondary battery in the case 210. In addition, a brake lamp control device that controls lighting / non-lighting of the light emitting element of the board is also provided in the case 210, and the brake lamp control device accepts and accepts a control signal instructing lighting from the control unit 60 described below. The lighting / non-lighting of the light emitting element of the substrate is controlled in accordance with the control signal.

As shown in FIG. 10, the control unit 60 includes a motor driver 70 that drives each motor 50 and a control device 80.
The motor driver 70 is connected to the power terminal 91a through a power line and is connected to each motor 50 through a power line, and drives each motor 50 by supplying power.

  The control device 80 includes, for example, a control unit 81 having a CPU, a RAM, a storage device 82 having a nonvolatile memory, a ROM, and the like, and a transmission / reception unit 83. The storage device 82 stores a program for controlling the electric mobility. The control unit 81 operates based on the program, and drives each motor 50 based on signals from the operation unit 43a and the setting unit 43c. A drive signal is transmitted to the motor driver 70. Moreover, based on the drive signal for driving each motor 50, a control signal instructing lighting and non-lighting of the brake lamp 218 is transmitted to the brake lamp control device.

  In the electric mobility configured as described above, the handle portion 230 of the battery 200 is attached to the upper end side of the case 210 on the back surface 212 of the case 210. That is, as shown in FIG. 8, the handle portion 230 is disposed above the gravity center position G of the battery 200 and is disposed on the back surface 212 side of the case 210 with respect to the gravity center position G. When the battery 200 is lifted by 230, the longitudinal axis AL is inclined at the second angle β with respect to the vertical axis VL as shown in FIG.

  The second angle β is such that the upper surface of a metal plate having a thickness of 5 to 10 cm and a width of 30 to 50 cm is horizontal, the handle portion 230 is supported on the upper surface, the battery 200 is lifted, and the longitudinal axis AL at this time is vertical. The angle formed with respect to the axis VL can be the second angle β. This method is an example. Since the position of the handle portion 230 is shifted to the back side of the case 210 with respect to the center of gravity position G, when the battery 200 is lifted by the handle portion 230, the longitudinal axis AL is tilted with respect to the vertical axis VL, but the tilt angle is In some cases, the above-described identification method is effective.

  At this time, the lower surface 216 of the case 210 is inclined downward from the rear surface 212 toward the front surface 211. For example, it is preferable that the lower surface 216 is inclined downward so that the front side of the second engaging portion 216a forms an angle of 15 ° or more with respect to the horizontal plane. Further, the second angle β is smaller than the first angle α.

  After the battery 200 is lifted by the handle portion 230 in this way, when the lower surface 216 is placed on the pair of first engaging portions 39 of the accommodation space 38, the lower surface 216 is removed from the battery 200 due to the downward inclination. The first engagement portion 39 slides toward the front of the vehicle body due to its own weight, and the second engagement portion 216a engages with the first engagement portion 39, respectively.

  In this state, when the battery 200 is tilted around the first engagement portion 39 toward the front of the vehicle body, the case 210 is disposed at the predetermined storage position in the storage space 38 and the battery side connector 220 is connected to the vehicle body side connector. 90.

  Here, as shown in FIG. 11, the upper surface 215 of the case 210 is provided with an engaging portion 215a which is a recess, and the receiving space 38 has an engaging portion 215a of the case 210 disposed at the predetermined receiving position. The engagement member 38b is supported so as to be movable between a position where the protrusion amount in the accommodation space 38 is large and a position where the protrusion amount is small. Further, a biasing member 38c such as a torsion spring that biases the engaging member 38b toward a position where the protruding amount is large is provided.

  That is, the case 210 tilts toward the predetermined accommodation position while pushing the engagement member 38b toward the position where the protrusion amount is small by the upper surface 215, and the engagement member 38b enters the engagement portion 215a. 210 is fixed to the predetermined accommodation position. When removing the battery 200, the case 210 moves toward the rear of the vehicle body while pushing the engaging member 38b toward the position where the protruding amount is small by the side surface of the engaging portion 215a.

  In order to make the battery 200 unremovable, it is possible to provide a lock mechanism having a regulating member 38d and a key cylinder 38e that can regulate the movement of the engaging member 38b. In this case, the movement of the engaging member 38b can be regulated by inserting a key into the key cylinder 38e and turning it around the cylinder axis SL and disposing the regulating member 38d above the engaging member 38b. Further, if the key is inserted into the key cylinder 38e and turned around the cylinder axis SL so that the restricting member 38d is not disposed above the engaging member 38b, the movement restriction of the engaging member 38b can be released.

  According to the present embodiment, when the battery 200 is lifted by the handle portion 230, the longitudinal axis AL of the case 210 is inclined at the second angle β with respect to the vertical axis VL, whereby the lower surface (guide surface) 216 of the case 210. Is inclined downward from the back surface 212 of the case 210 toward the front surface 211. When the lower surface 216 is placed on the first engaging portion 39 in this state, the lower surface 216 is first engaged by the downward inclination of the lower surface 216. The second engagement portion 216a is engaged with the first engagement portion 39 by sliding on the portion 39. Therefore, the second engagement portion 216a can be engaged with the first engagement portion 39 simply by lifting the handle portion 230 and placing the lower surface 216 on the first engagement portion 39. The engaging operation between the first engaging portion 39 and the second engaging portion 216a is easy.

Further, when the case 210 is tilted to the first angle α larger than the second angle β with the second engaging portion 216a engaged with the first engaging portion 39, the vehicle body side connector 90 is Battery side connector 220 is connected.
As described above, the battery 200 can be mounted by the operation of lifting the battery 200 by the handle portion 230, the operation of placing the lower surface 216 on the first engaging portion 39, and the operation of tilting the battery 200. it can.

  When the case 210 is tilted to the first angle α, the connector main body 221 on the battery 200 side and the connector main body 91 on the vehicle body 100 side are attracted to each other by the magnetic force of the magnet, whereby the connector main body 221 and the connector main body are attracted. 91 is connected, the connector main body 221 and the connector main body 91 can be reliably connected.

  Further, since the seat support portion 33 is inclined forward of the vehicle body 100, the back surface 33 b on the upper end side of the seat support portion 33 is disposed directly below the seat surface portion 41 and the backrest portion 42. For this reason, the space between the back surface 33b of the seat support portion 33 and the lower surface of the seat surface portion 41 or the backrest portion 42 is narrowed, but the second angle is smaller than when the battery 200 is lifted by the handle portion 230 and mounted. The battery 200 is tilted by β, and the lower surface 216 is placed on the first engagement portion 39 in this state, whereby the first engagement portion 39 and the second engagement portion 216a are engaged. It is possible. Thus, the work in the narrow space between the back surface 33b of the seat support part 33 and the lower surface of the seat surface part 41 or the backrest part 42 can be reduced or eliminated.

  In the present embodiment, the handle portion 230 is fixed to the back surface 212 of the case 210 that is long in the vertical direction. Since the longitudinal axis AL of the case 210 is inclined when the battery 200 is lifted by the handle portion 230, it usually seems unfavorable. However, in this embodiment, by separating the distance between the handle portion 230 and the center of gravity G of the battery 200 in the front-rear direction of the case 210, the lower surface 216 reliably tilts downward when the battery 200 is lifted. It is extremely advantageous for smoothly performing the mounting operation.

  In the present embodiment, a brake lamp 218 is provided on the back surface 212 of the case 210. When the battery 200 is mounted on the back surface 33b side of the seat support portion 33, the longitudinal axis AL of the case 210 of the battery 200 is tilted forward of the vehicle body 100 at the first angle α with respect to the vertical axis VL when mounted. The rear surface 212 of the vehicle faces rearward and obliquely upward of the vehicle body 100. By providing the brake lamp 218 on the back surface of the case 210, it can be expected that the visibility of the brake lamp 218 from a pedestrian, a car driver, or the like is improved.

  Further, since the contact preventing member 211a protruding from the front surface 211 of the case 210 is provided, the battery-side connector 220 is soiled or damaged when the battery 200 is placed with the front surface 211 of the case 210 facing down. It becomes possible to reduce damage and the like.

In the present embodiment, the pair of first engaging portions 39 are disposed in the housing space 38 at intervals in the width direction of the vehicle body 100, but the pair of first engaging portions 39 are connected. The first engaging portion may be formed by a single shaft having a shape.
In the present embodiment, as shown in FIG. 4, the pair of first engaging portions 39 is provided at a position away from the opening side of the lower surface 38 f of the accommodation space 38. A protrusion that protrudes upward from a part of the opening side of 38 f may be provided, and the protrusion may be used as the first engaging portion 39.

In the present embodiment, the second engaging portion 216a is provided on the lower surface 216 of the case 210. However, the second engaging portion 216a may be provided on the side surfaces 213 and 214 of the case 210.
In the present embodiment, the first engaging portion 39 is accommodated in the second engaging portion 216a which is a concave portion. However, the first engaging portion 39 is a concave portion and the second engaging portion 39 is a second concave portion. The engaging portion 216a may be a convex portion, and the second engaging portion 216a may be accommodated in the first engaging portion 39. The first engaging portion 39 and the second engaging portion 216a may be anything that can engage with each other and realize tilting of the case 210 around the first engaging portion 39.

DESCRIPTION OF SYMBOLS 10 Front wheel 20 Rear wheel 30 Body 32 Base part 32a Base frame 33 Seat support part 33b Back surface 34 Support part frame 36 Seat attachment member 37 Positioning member 38 Storage space 39 First engagement part 40 Seat unit 41 Seat surface part 42 Backrest part 43 control arm 50 motor 60 control unit 100 vehicle body 200 battery 210 case 211 front surface 211a contact prevention member 212 back surface 213, 214 side surface 215 upper surface 215a engaging portion 216 lower surface (guide surface)
216a Second engaging portion 217 Overhang portion 218 Brake lamp 220 Battery side connector 221 Connector main body 222 Support member 230 Handle portion α First angle β Second angle G Center of gravity AL Longitudinal axis VL Vertical axis

Claims (7)

An electric mobility having a battery having a long case with a built-in secondary battery and a vehicle body to which the battery is mounted,
The vehicle body is
A seat for the passenger to sit on;
The space is provided below the seat surface of the seat and accommodates the case of the battery, the rear surface of the accommodated case faces the outside of the vehicle body, and the longitudinal axis of the case is the vertical axis A storage space configured to be inclined at a first angle with respect to
A first engagement portion provided in the accommodation space,
The battery is
A battery-side connector provided on the front surface of the case;
A handle portion attached to the case so as to be disposed above the center of gravity of the battery and disposed on the back side of the case with respect to the center of gravity;
A second engagement portion provided on the case and engageable with the first engagement portion;
A guide surface provided on the case so as to face downward when the battery is lifted by the handle portion;
Since the handle portion is disposed on the back side of the case with respect to the center of gravity position, the longitudinal axis of the case is the first axis with respect to the vertical axis when the battery is lifted by the handle portion. The guide surface is inclined at a second angle smaller than the angle, so that the guide surface is inclined downward from the back surface toward the front surface,
When the battery is lifted by the handle and the guide surface is placed on the first engaging portion, the guide surface is moved by the weight of the battery due to the downward inclination. It is configured such that the second engagement portion is engaged with the first engagement portion by sliding on the joint portion,
When the case is tilted around the first engagement portion in a state where the second engagement portion is engaged with the first engagement portion, the case is accommodated in the accommodation space. The electric mobility comprised so that the said battery side connector may be connected to the vehicle body side connector provided in the said accommodation space. The battery-side connector has a battery-side connector body to which at least one power terminal is fixed, and a flexible support member that movably supports the battery-side connector body with respect to the case,
The vehicle body side connector has a vehicle body side connector body to which a power terminal connected to the power terminal of the battery side connector is fixed,
The magnet is provided in at least one of the battery side connector main body and the vehicle body side connector main body, and the battery side connector main body and the vehicle body side connector main body are configured to be connected by the magnetic force of the magnet. Electric mobility described in 1. The vehicle body includes a base portion supported by front and rear wheels, and a seat support portion that extends upward from the base portion so as to incline forward of the vehicle body and supports the seat on an upper end side;
3. The electric mobility according to claim 1, wherein the housing space is open to a back surface of the seat support portion, and a back surface of the case attached to the housing space faces a rear side of the vehicle body. .   The electric mobility according to claim 1, wherein the handle portion is fixed to the back surface of the case.   The electric mobility according to claim 3, wherein a brake lamp is provided on the back surface of the case.   The battery has a contact prevention member that protrudes from the front surface of the case and prevents contact between the battery and the battery-side connector when the battery is placed on a flat surface with the front surface facing down. The electric mobility in any one of claim | item 1 -5. A battery mounting method for mounting a battery having a long case with a built-in secondary battery on top and bottom so that the case is accommodated in a housing space provided in electric mobility,
The battery is provided on the front surface of the case, and the battery is disposed above the center of gravity of the battery, and the battery is disposed on the back side of the case with respect to the center of gravity. And a guide portion provided on the lower surface of the case,
Lifting the battery by the handle so that the guide surface is inclined downward from the back surface of the case toward the front surface;
By placing the guide surface having the downward inclination on the first engagement portion provided in the accommodation space, the guide surface slides on the first engagement portion by the downward inclination, A step of engaging the first engaging portion with a second engaging portion provided in the case;
While the second engagement portion is engaged with the first engagement portion, the case is tilted around the first engagement portion, whereby the case is accommodated in the accommodation space. And a step of connecting the battery side connector to a vehicle body side connector provided in the housing space.

Images