JP6332057B2 - Battery attachment / detachment device - Google Patents

Description

  The present invention relates to a battery attaching / detaching device for attaching / detaching a battery to / from a vehicle.

  A vehicle is equipped with a battery as a power source. For example, in Patent Document 1, a battery is mounted on a vehicle by fixing a fixing member provided on the battery to a striker provided on the vehicle.

  The battery described in Patent Document 1 includes a fixing member outside a case that houses battery cells. The fixing member includes a latch that fixes and releases the striker provided in the vehicle, and a holding mechanism that holds the state of the latch that fixes the striker.

  The battery is attached to the vehicle by a battery attaching / detaching device. The battery is mounted by bringing the mounting table on which the battery is mounted close to the vehicle, and the latch provided on the battery fixes the striker when the mounting table approaches, and the latch is held by the holding mechanism. The state where the striker is fixed is maintained.

JP2013-28324A

  By the way, although the battery attaching / detaching device is shown in Patent Document 1, it cannot be accurately determined whether or not the battery is normally attached by the battery attaching / detaching device. The shape of the latch and the structure of the holding mechanism that holds the latch are not limited to the shape and structure described in Patent Document 1.

  An object of the present invention is to provide a battery attachment / detachment device that can accurately determine normal attachment of a battery.

  A battery attaching and detaching device that solves the above problem includes a battery that includes a latch that is fixed to a striker of a vehicle at a fixed position and that is released at a released position, and a holding mechanism that holds the latch at the fixed position. A battery attaching / detaching device for attaching to and detaching from the vehicle, wherein the battery is mounted on the mounting table and the mounting table, and the latch is in the fixed position when the mounting table is close to the vehicle. A first detection unit that detects this, and a second detection unit that is provided on the mounting table and detects a holding state of the holding mechanism when the mounting table approaches the vehicle.

  According to this, when the latch is fixed to the striker of the vehicle when the mounting table comes close to the vehicle, the first detection unit detects that the latch is in the fixed position. Further, when the latch is held at the fixed position by the holding mechanism, the second detection unit detects that the holding mechanism has held the latch at the fixed position. For this reason, it can be judged correctly from the detection result of a 1st detection part, and the detection result of a 2nd detection part whether the battery is normally mounted | worn.

  With respect to the battery attaching / detaching device, the mounting table is configured such that the holding mechanism contacts the holding mechanism in a state where the latch is held at the fixed position, and presses the holding mechanism by extending toward the holding mechanism. It is preferable that a release unit that releases the holding of the latch by the holding mechanism is provided, and the second detection unit is provided in the release unit, and detects contact between the release unit and the holding mechanism. .

  According to this, in the state where the release unit is pressing the holding mechanism, when the contact between the release unit and the holding mechanism is detected by the second detection unit, the holding mechanism is pressed by the release unit. Thus, it can be determined that the holding of the latch by the holding mechanism has been released.

  In the battery attaching / detaching device, the first detection unit detects that the latch is in the fixed position, and the second detection unit detects that the holding mechanism holds the latch in the fixed position. It is preferable to provide a mounting determination unit that determines that the battery has been mounted on the vehicle. According to this, it can be determined that the battery is mounted by the mounting determination unit.

  In the battery attaching / detaching device, when contact between the holding mechanism and the releasing unit is detected by the second detecting unit in a state where the holding of the latch by the holding mechanism is released by the releasing unit, Is separated from the vehicle to a predetermined stop position, and it is determined that the battery has been removed from the vehicle when the first detection unit does not detect that the latch is in the fixed position at the stop position. It is preferable to include a departure determination unit.

  In the state in which the release unit releases the holding of the latch by the holding mechanism, the release unit and the holding mechanism are in contact with each other. Therefore, the second detection unit detects contact between the release unit and the holding mechanism. It can be determined whether or not the latch is released. In a state where the holding of the latch by the holding mechanism is released, the striker can be fixed by the latch by separating the mounting table. When the mounting table is moved to the stop position and the striker is not fixed by the latch, it is not detected that the latch is in the fixed position. Therefore, the first detection unit detects that the latch is in the fixed position. It can be determined that the battery has been removed from the vehicle when it is no longer being used.

  With respect to the battery attaching / detaching device, the mounting table includes a plurality of first latches corresponding to a latch for individually fixing a plurality of strikers provided in the vehicle and a holding mechanism for individually holding the latches. 1 mounting unit and a plurality of second detection units are provided, the detection results of all the first detection units are the same, and the detection results of all the second detection units are the same. It is preferable to allow the separation from the vehicle.

  According to this, the separation of the mounting table from the vehicle in a state where some of the latches and the striker are fixed can be restricted. The normal mounting of the battery is a state where all the latches and all the strikers are fixed, and the normal detachment of the battery is a state where all the latches and all the strikers are fixed. For this reason, although a battery is not normally attached or detached, it is suppressed that a mounting base leaves | separates from a vehicle.

  According to the present invention, it is possible to accurately determine the normal installation of the battery.

(A) is the schematic which shows the vehicle with which a battery is mounted | worn, (b) is an enlarged view which shows the striker provided in the vehicle. The perspective view which shows the battery with which a vehicle is mounted | worn. Sectional drawing which shows the fixing member of the state which is not being fixed with the striker. Sectional drawing which shows the fixing member of the state currently fixed with the striker. The schematic block diagram which shows a battery attaching / detaching apparatus. The perspective view which shows the relationship between the press pin provided in the mounting base, the 1st detection switch, and the battery. Sectional drawing which shows the relationship between the press pin provided in the mounting base, the 1st detection switch, and the battery. Sectional drawing which shows the relationship between a striker and a fixing member when mounting a battery in a vehicle. Sectional drawing which shows the relationship between a striker and a fixing member when mounting a battery in a vehicle. Sectional drawing which shows the relationship between a striker and a fixing member when mounting a battery in a vehicle. The time chart which shows the ON / OFF state of a 1st detection switch and a 2nd detection switch when mounting a battery in a vehicle. Sectional drawing which shows the relationship between a striker and a fixing member when removing a battery from a vehicle. Sectional drawing which shows the relationship between a striker and a fixing member when removing a battery from a vehicle. The time chart which shows the ON / OFF state of a 1st detection switch and a 2nd detection switch when removing a battery from a vehicle.

Hereinafter, an embodiment of the battery mounting device will be described.
As shown in FIGS. 1A and 1B, an accommodation space 11 for accommodating the battery 20 is provided at the bottom of the vehicle 10. The vehicle 10 of the present embodiment is an electric vehicle or a hybrid vehicle that is mounted with a traveling motor that is driven by using the battery 20 mounted in the accommodation space 11 as a power source and that is driven by the driving of the traveling motor.

  In the vehicle 10, a plurality of strikers 12 are provided in a portion surrounding the accommodation space 11. In this embodiment, four strikers 12 (only two are shown in the figure) are provided. The striker 12 has a U-shape in which both ends of the bar are bent at a right angle, and a first fixing portion 14 and a second fixing portion 14 extending at a right angle from the connecting portion 13 in the same direction at both ends of the linear connecting portion 13. A fixing portion 15 is provided. In the striker 12, the first fixing portion 14 is fixed to the vehicle 10 by a fixing plate 16. The fixing plate 16 has an insertion portion 17 into which the first fixing portion 14 is inserted and a bolt hole 19 into which the bolt 18 is inserted. The fixing plate 16 is fixed to the vehicle 10 with bolts 18 inserted into the bolt holes 19 in a state where the first fixing portion 14 of the striker 12 is inserted into the insertion portion 17. As a result, the connecting portion 13 of the striker 12 extends downward of the vehicle 10, and the second fixing portion 15 is located below the vehicle 10 than the first fixing portion 14.

  As shown in FIG. 2, the battery 20 accommodated in the accommodation space 11 has a plurality of fixing members 30. More specifically, the battery 20 has a battery unit 21 in which a plurality of battery cells are connected in series or in parallel in a case 22, and a fixing member 30 is provided outside the case 22 that houses the battery unit 21. It has been. The case 22 of this embodiment has a rectangular box shape, and fixing members 30 are provided at the four corners. The interval between the fixing members 30 is the same as the interval between the strikers 12 provided in the vehicle 10.

  The battery 20 described above is attached to the vehicle 10 by fixing the striker 12 and the fixing member 30 provided in the vehicle 10, and is detached from the vehicle 10 by releasing the fixing of the striker 12 and the fixing member 30. Hereinafter, the fixing member 30 that is not fixed to the striker 12 will be described.

  As shown in FIG. 3, the fixing member 30 has a square box-shaped housing 31. The top plate 32 of the housing 31 is provided with a communication portion 33 that communicates inside and outside. The bottom plate 34 of the housing 31 facing the top plate 32 is provided with a detection hole 35 that communicates the inside and outside of the housing 31 and a release hole 36 that communicates the inside and outside of the housing 31.

  A latch 41 is accommodated in the housing 31. The latch 41 is U-shaped, and includes a base portion 42, a first extending portion 43 and a second extending portion 44 extending from the base portion 42. A region defined between the first extending portion 43 and the second extending portion 44 becomes an entry portion 45 into which the second fixing portion 15 of the striker 12 is entered. A locking piece 46 is provided at the tip of the first extending portion 43. The latch 41 is supported by the first rotation shaft 47 so as to be rotatable in the housing 31. The first rotation shaft 47 supports the base portion 42 of the latch 41. The latch 41 is biased toward the first extending portion 43 side (counterclockwise in the drawing) in the rotation direction of the latch 41 by a biasing member (for example, a coil spring) (not shown). A first restricting pin 48 that restricts the rotation of the latch 41 by the biasing member is provided in the housing 31. The first restricting pin 48 abuts on a locking piece 46 provided on the first extending portion 43, thereby restricting the rotation of the latch 41. The first restriction pin 48 is provided so that the entry portion 45 of the latch 41 stops in a state in which it faces the communication portion 33. In a state where the first restriction pin 48 and the latch 41 are in contact, the second fixing portion 15 of the striker 12 can enter and exit from the entry portion 45, and the striker 12 is fixed by the latch 41. Absent. Therefore, the release position of the latch 41 is a position where the entry portion 45 is stopped with the communication portion 33 facing the communication portion 33, and in this embodiment, the latch 41 is in contact with the first restriction pin 48.

  Inside the housing 31, a pole 51 as a holding mechanism is accommodated adjacent to the second extending portion 44 of the latch 41. The pole 51 is L-shaped and has a pressing part 52 and an operation part 53. The pole 51 is provided so that a region between the pressing portion 52 and the operation portion 53 faces the bottom plate 34. The pressing portion 52 is provided in contact with the second extending portion 44 of the latch 41. The pole 51 is supported by the second rotation shaft 54 so as to be rotatable in the housing 31. The second rotation shaft 54 supports a portion corresponding to the L-shaped corner of the pole 51. The pole 51 is biased toward the pressing portion 52 (clockwise in the figure) in the rotation direction of the pole 51 by a biasing member (for example, a coil spring) (not shown). A second restricting pin 55 that restricts the rotation of the pole 51 by the biasing member is provided in the housing 31. The second restriction pin 55 is provided so that the operation portion 53 stops at a position facing the release hole 36.

  A lever 61 is provided inside the housing 31 adjacent to the pressing portion 52 of the pole 51. The lever 61 is provided in a state in which an end 62 adjacent to the pressing portion 52 of the pole 51 is in contact with the pressing portion 52. The lever 61 is supported by the third rotation shaft 63 so as to be rotatable in the housing 31. The lever 61 is urged in a direction (clockwise in the drawing) in which the end portion 62 comes into contact with the pressing portion 52 by an urging member (for example, a coil spring) (not shown). A third restriction pin 64 that restricts the rotation of the lever 61 by the biasing member is provided in the housing 31. The third restriction pin 64 is provided such that an end portion 65 different from the end portion 62 in contact with the pressing portion 52 is stopped at a position facing the release hole 36.

  A flange 38 is provided on the side wall 37 of the housing 31 of the fixing member 30. A bolt hole 39 is provided in the flange 38, and the fixing member 30 is fixed to the case 22 by a bolt 40 inserted through the bolt hole 39. Each fixing member 30 is fixed to the case 22 of the battery 20 so that the communication portion 33 faces the same direction.

  The second fixing portion 15 of the striker 12 enters the communication portion 33 of the fixing member 30 described above. The striker 12 and the fixing member 30 are fixed by the cooperation of the latch 41, the pole 51, and the lever 61 when the second fixing portion 15 of the striker 12 enters. Hereinafter, the fixing member 30 fixed to the striker 12 will be described.

  As shown in FIG. 4, the second fixing portion 15 of the striker 12 inserted into the housing 31 from the communication portion 33 is inserted into the entry portion 45. The latch 41 is rotated about 90 degrees from the release position to the second extending portion 44 side (clockwise in the figure) in the rotation direction of the latch 41 with the entry operation of the striker 12 to the entry portion 45. The entry portion 45 of the latch 41 faces the side wall 37. In the present embodiment, this state is the fixed position of the latch 41. In the fixed position, the striker 12 is prevented from coming out of the communication portion 33 by the first extending portion 43 of the latch 41, and the striker 12 is fixed by the latch 41. Accordingly, the position where the removal of the striker 12 from the communication portion 33 with the rotation of the latch 41 is restricted is the fixed position. In the fixed position, the second extending portion 44 is positioned so as to face the detection hole 35. Therefore, it can be said that the detection hole 35 is provided at a position facing the second extending portion 44 when the latch 41 is rotated to the fixed position. Further, the portion of the latch 41 that is closest to the detection hole 35 on the axis of the detection hole 35 is closer to the detection hole 35 when the latch 41 is at the fixed position than when the latch 41 is at the release position.

  The latch piece 46 of the latch 41 is engaged with the pressing portion 52. The weight of the battery 20 is applied from the first extending portion 43 to the second fixing portion 15 of the striker 12, and the latch 41 tends to rotate toward the first extending portion 43 in the rotating direction by this weight. The rotation of the latch 41 toward the first extending portion 43 side is restricted by the pole 51. The force that the latch 41 tries to rotate toward the first extending portion 43 side acts on the pole 51, but this force acts to rotate the pole 51 toward the pressing portion 52 in the rotational direction. For this reason, the pole 51 is maintained in a state in which the rotation is restricted by the second restriction pin 55, and restricts the rotation of the latch 41. Therefore, the latch 41 is held at a fixed position by the pole 51.

  The lever 61 restricts the pole 51 from rotating toward the operation unit 53 by contacting the pressing unit 52. The battery 20 is attached to the vehicle 10 by fixing the four fixing members 30 to each of the four strikers 12 provided in the vehicle 10.

Next, the battery attaching / detaching device 70 used when attaching / detaching the battery 20 to / from the vehicle 10 will be described.
As shown in FIG. 5, the battery attaching / detaching device 70 is provided on a lower floor 72 located below the upper floor 71 that is a stop place of the vehicle 10. A region between the upper floor 71 and the lower floor 72 serves as an arrangement space 73 for the battery attaching / detaching device 70. The upper floor 71 is provided with a mounting hole 74 that communicates with the arrangement space 73. The vehicle 10 is stopped in a state where the mounting hole 74 and the storage space 11 for the battery 20 face each other.

  The battery attaching / detaching device 70 has a pedestal 81 placed on the lower floor 72. The pedestal 81 supports the lifting device 82. The lifting device 82 includes a fixed base 83 fixed to the base 81 and a movable base 86 connected to the fixed base 83 by a first frame 84 and a second frame 85. A mounting table 87 on which the battery 20 is mounted is fixed to the movable table 86. The fixed base 83 is provided with a first guide hole 88 extending in the horizontal direction. Similarly, the movable table 86 is provided with a second guide hole 89 extending in the horizontal direction. The first guide hole 88 is provided with a first connecting shaft 90 that can move in the first guide hole 88. The second guide hole 89 is provided with a second connecting shaft 91 that can move in the second guide hole 89.

  The first frame 84 and the second frame 85 are provided so as to intersect. The intersecting portions of the first frame 84 and the second frame 85 are connected by a shaft member 92. One end of the first frame 84 is fixed to the first connecting shaft 90, and the other end is fixed to the movable table 86. The second frame 85 has one end fixed to the fixing base 83 and the other end fixed to the second connecting shaft 91. The first connecting shaft 90 moves in the first guide hole 88 by a power source (not shown) (for example, a motor or an actuator). The first frame 84 and the second frame 85 move the movable table 86 up and down by moving the first connecting shaft 90 in the first guide hole 88. As the movable table 86 moves up and down, the mounting table 87 moves closer to and away from the vehicle 10.

  The lower floor 72 is provided with a control device 100 that controls the battery attaching / detaching device 70. The control device 100 controls the movement of the first connecting shaft 90 in the first guide hole 88.

  As shown in FIG. 6, a plurality of pressing pins 101 are provided on the mounting surface 87 a of the battery 20 in the mounting table 87. The plurality of pressing pins 101 are provided at the same interval as the interval between the release holes 36 of each fixing member 30 provided in the battery 20. A plurality of first detection switches 102 are provided on the mounting surface 87a. The first detection switch 102 is provided at the same interval as the interval between the detection holes 35 of each fixing member 30 provided in the battery 20. The first detection switch 102 is a contact type switch that is turned on when pressed toward the placement surface 87a and turned off when the pressure is released. The first detection switch 102 is connected to the control device 100.

  As shown in FIG. 7, the pressing pin 101 includes a columnar protrusion 103 that protrudes from the placement surface 87 a and a columnar release portion 104 that is accommodated in the protrusion 103 and partially protrudes from the protrusion 103. And have. A second detection switch 105 is provided at the tip of the release unit 104. The second detection switch 105 is a contact type switch that is turned on when pressed toward the mounting table 87 and turned off when the pressure is released. In the present embodiment, the second detection switch 105 is turned on by contact between the release unit 104 and the pole 51 via itself. The second detection switch 105 is connected to the control device 100. The release unit 104 can change the amount of protrusion from the protrusion 103 by a solenoid 106 provided in the mounting table 87.

Next, attachment of the battery 20 to the vehicle 10 using the battery attaching / detaching device 70 described above will be described.
As shown in FIGS. 8 and 11, when the battery 20 is mounted on the vehicle 10, first, the battery 20 is mounted on the mounting table 87 (time T ₁ ). At this time, the first detection switch 102 is inserted into the detection hole 35. The first detection switch 102 protrudes into the housing 31 of the fixing member 30 through the detection hole 35. Further, the pressing pin 101 is inserted into the release hole 36. The pressing pin 101 protrudes into the housing 31 of the fixing member 30 through the release hole 36. The protruding portion 103 rotates the lever 61 by pressing the lever 61. Thereby, the contact between the lever 61 and the pressing portion 52 is released, and the pole 51 can be rotated. The first detection switch 102 and the latch 41 are not in contact with each other, and the first detection switch 102 is kept off. On the other hand, since the release unit 104 comes into contact with the operation unit 53 of the pole 51 via the second detection switch 105, the second detection switch 105 is turned on. In this state, the mounting table 87 is brought closer to the accommodation space 11 of the vehicle 10.

As shown in FIGS. 9 and 11, when the second fixing portion 15 of the striker 12 enters the entry portion 45 from the communication portion 33 with the proximity of the mounting table 87, the latch 41 is moved along with this entry operation. It rotates toward the fixed position (time T ₂ ). At this time, the outer shape of the pressing portion 52 of the pole 51 is pressed by the first extending portion 43 and the second extending portion 44 of the latch 41, so that the pole 51 rotates toward the operation portion 53. Therefore, the rotation of the latch 41 is not restricted by the pole 51. When the pole 51 rotates toward the operation unit 53, the contact between the pole 51 and the second detection switch 105 is released, and the second detection switch 105 is turned off.

As shown in FIGS. 10 and 11, when the latch 41 rotates to the fixed position as the second fixing portion 15 of the striker 12 enters the entry portion 45, the latch piece 46 of the latch 41 and the pole 51 are pressed. The latch 41 is held in a state in which the striker 12 is fixed by the engagement with the portion 52 (time T ₃ ). At this time, the first detection switch 102 is pressed by the outer shape of the latch 41, and the first detection switch 102 is turned on. Therefore, it can be said that the latch 41 has a contact portion that contacts the first detection switch 102 at the fixed position and turns on the first detection switch 102. Further, the second detection switch 105 is turned on by the contact of the pole 51 with the operation unit 53. That is, the first detection switch 102 is turned on when the latch 41 is in the fixed position, and the second detection switch 105 is turned on when the pole 51 holds the latch 41 in the fixed position. Therefore, the first detection switch 102 as the first detection unit detects that the latch 41 is in the fixed position by being turned on. Further, the second detection switch 105 as the second detection unit is turned on to detect that the pole 51 holds the latch 41, and when turned off, the pole 51 does not hold the latch 41. Is detected. That is, the second detection switch 105 detects the holding state of the pole 51.

  The control device 100 determines that the battery 20 is attached to the vehicle 10 when both the first detection switch 102 and the second detection switch 105 are turned on. Therefore, the control device 100 serves as a mounting determination unit. When all of the plurality of first detection switches 102 and the plurality of second detection switches 105 are turned on, the control device 100 allows the mounting table 87 to be separated from the vehicle 10. On the other hand, as indicated by a two-dot chain line in FIG. 11, when some of the first detection switches 102 and some of the second detection switches 105 are off, The separation of the mounting table 87 from the vehicle 10 is prohibited. That is, the control device 100 allows the mounting table 87 to be separated from the vehicle 10 when the detection results of all the first detection switches 102 are the same and the detection results of all the second detection switches 105 are the same. To do.

As shown in FIG. 11, when the control unit 100 at time _{T 4} is to separate the mounting table 87 from the vehicle 10, the contact of the first detection switch 102 and the latch 41 is released, the first detection switch 102 is turned off. Further, the contact between the pole 51 and the second detection switch 105 is released, and the second detection switch 105 is turned off. Thereby, the mounting of the battery 20 to the vehicle 10 is completed.

Next, removal of the battery 20 from the vehicle 10 using the battery attaching / detaching device 70 will be described.
As shown in FIG. 14, when the battery 20 is detached from the vehicle 10, first, the mounting table 87 is brought close to the battery 20 attached to the vehicle 10 (time T ₁₁ ). As the mounting table 87 approaches, the first detection switch 102 is inserted into the detection hole 35 and the pressing pin 101 is inserted into the release hole 36. When the mounting table 87 comes close to the battery 20 mounted on the vehicle 10, the latch 41 is in a fixed position, so the first detection switch 102 is turned on. Further, the pole 51 and the second detection switch 105 come into contact with each other, and the second detection switch 105 is turned on.

As shown in FIGS. 12 and 14, the control device 100 controls the solenoid 106 to increase the protrusion amount of the release portion 104 from the protrusion portion 103 (T ₁₂ ). That is, the release unit 104 is extended toward the pole 51. The release unit 104 presses the operation unit 53 of the pole 51, and thereby the pole 51 rotates toward the operation unit 53. As a result, the locking between the pressing portion 52 of the pole 51 and the locking piece 46 of the latch 41 is released, and the holding of the latch 41 is released. In this state, both the first detection switch 102 and the second detection switch 105 are on. In the control device 100, when both the first detection switch 102 and the second detection switch 105 are on and the release unit 104 presses the pole 51 (the amount of protrusion of the release unit 104 from the projection 103 is increased). ), It is determined that the holding of the latch 41 at the fixed position by the pole 51 is released.

As shown in FIG. 13 and FIG. 14, the control device 100 separates the mounting table 87 and stops the mounting table 87 when it is separated to a preset stop position (time T ₁₃ ). The preset stop position is a position where the latch 41 is rotated to the release position when the second fixing portion 15 of the striker 12 is pulled out from the entry portion 45. When the latch 41 rotates to the release position, the contact between the latch 41 and the first detection switch 102 is released, and the first detection switch 102 is turned off. On the other hand, since the pole 51 and the second detection switch 105 are in contact with each other, the second detection switch 105 is kept on. The control device 100 determines that the battery 20 has detached from the vehicle 10 when the first detection switch 102 is turned off and the second detection switch 105 is turned on. Therefore, the control device 100 serves as a departure determination unit. When all of the plurality of first detection switches 102 are turned off and all of the plurality of second detection switches 105 are turned on, the control device 100 allows the mounting table 87 to be separated from the vehicle 10. On the other hand, as shown by a two-dot chain line in FIG. 14, when some of the first detection switches 102 are on or some of the second detection switches 105 are off, the mounting table 87 is separated from the vehicle 10. Ban.

As shown in FIG. 14, at time T ₁₄ , the control device 100 further separates the mounting table 87 from the stop position, and completes the removal of the battery 20. At this time, the first detection switch 102 is kept off and the second detection switch 105 is kept on.

Therefore, according to the above embodiment, the following effects can be obtained.
(1) The battery attaching / detaching device 70 is provided with a first detection switch 102 for detecting that the latch 41 is in the fixed position, and a second detection switch 105 for detecting the holding of the latch 41 in the fixed position by the pole 51. ing. When the latch 41 fixes the striker 12 at the fixed position, the first detection switch 102 detects that the latch 41 has fixed the striker 12. When the latch 41 is held at the fixed position by the pole 51, the second detection switch 105 detects that the pole 51 has held the latch 41. For this reason, by detecting the fixing of the striker 12 by the latch 41 by the first detection switch 102 and the second detection switch 105, it can be accurately determined that the battery 20 is normally attached to the vehicle 10.

  (2) Since the second detection switch 105 is provided in the release unit 104, when both the first detection switch 102 and the second detection switch 105 are on and the release unit 104 presses the pole 51, the pole 51 It can be determined that the holding of the latch 41 is released.

  (3) The first detection switch 102 and the second detection switch 105 are connected to the control device 100. For this reason, the control device 100 can determine that the battery 20 is attached when both the first detection switch 102 and the second detection switch 105 are turned on.

  (4) After the holding unit 87 is moved away from the vehicle 10 after the release unit 104 releases the holding of the latch 41 by the release unit 104, the control device 100 turns off the battery 20 when the first detection switch 102 is turned off. It is determined that the vehicle 10 is detached. For this reason, the control device 100 can accurately determine that the battery 20 has been detached from the vehicle 10 by the first detection switch 102 and the second detection switch 105.

  (5) The control device 100 separates the mounting table 87 from the vehicle 10 when the detection results of all the first detection switches 102 are the same and the detection results of all the second detection switches 105 are the same. Is allowed. Therefore, only a part of the plurality of fixing members 30 is fixed to the striker 12, that is, the battery 20 is not normally attached to the vehicle 10, or the battery 20 is the vehicle. The mounting table 87 is prevented from being separated from the vehicle 10 in a state where it is not normally detached from the vehicle 10.

In addition, you may change embodiment as follows.
○ The first detection unit measures the distance from the latch 41 to detect that the latch 41 is in a fixed position, and the latch 41 is fixed by detecting the magnetic force generated by the magnet embedded in the latch 41. A non-contact sensor such as a magnetic sensor for detecting the position may be used. Similarly, the second detection unit detects a magnetic force generated by a distance sensor that detects whether the pole 51 holds the latch 41 at a fixed position by measuring a distance from the pole 51 or a magnet embedded in the pole 51. Thus, a non-contact type sensor such as a magnetic sensor that detects whether the pole 51 holds the latch 41 in a fixed position may be used. When a non-contact sensor is used as the second detection unit, the second detection unit may be provided on the mounting surface 87 a of the mounting table 87.

  In the embodiment, both attachment and detachment of the battery 20 are detected from the on / off states of the first detection switch 102 and the second detection switch 105, but the battery attaching / detaching device 70 is only attached to the battery 20. May be detected.

  -The 2nd detection part may be provided in the protrusion part 103. FIG. In this case, when the contact-type second detection switch 105 is used as in the embodiment, the pole 51 and the second detection switch 105 are in contact with each other when the pole 51 holds the latch 41 in the fixed position.

  The control device 100 determines whether the battery 20 is attached or detached from the on / off state of the first detection switch 102 and the second detection switch 105, but is not limited thereto. For example, a lamp that is turned on when the first detection switch 102 is turned on and a lamp that is turned on when the second detection switch 105 is turned on are provided on the fixing member 30, and the battery 20 is attached / detached visually by the operator. May be judged.

  The striker 12 and the fixing member 30 may be fixed by locking only the latch 41 and the pole 51. That is, the lever 61 may not be provided. When the lever 61 is not provided, it is not necessary to rotate the lever 61, and the protrusion 103 of the pressing pin 101 may not be provided.

-The number of fixing members 30 may be increased or decreased.
The shape of the housing 31 may be any shape such as a polygon other than a square.

  The fixing member 30 may be directly fixed to the case 22 of the battery 20 without providing the housing 31. That is, members accommodated in the housing 31 such as the latch 41 and the pole 51 may be exposed while being fixed to the case 22.

  O Although the latch 41 which enters the striker 12 by rotating with the approach of the striker 12 and the pole 51 which rotates together with the latch 41 are used, it is not limited to this. For example, a latch that moves linearly while holding the second fixing portion 15 as the striker 12 enters, and a latch that engages with the latch as the latch moves linearly and holds (fixes) the second fixing portion 15 by the latch. You may use the holding mechanism which hold | maintains. That is, the latch 41 and the pole 51 are not limited to members that fix the striker 12 by rotating.

  As the first detection switch 102 and the second detection switch 105, a switch that is turned off while being pressed and turned on when the pressure is released may be used. In this case, the control device 100 reverses the attachment / detachment determination of the battery 20 with respect to the vehicle 10 based on the on / off state of the first detection switch 102 and the second detection switch 105 from the case of the embodiment. Specifically, the control device 100 determines that the battery 20 is attached to the vehicle 10 when both the first detection switch 102 and the second detection switch 105 are off, and the first detection switch 102 is on, It is determined that battery 20 has been removed from vehicle 10 when detection switch 105 is off.

  The storage space 11 for the battery 20 is not limited to the bottom of the vehicle 10, and may be provided behind the vehicle 10. In this case, the battery attaching / detaching device 70 has a mounting table that approaches and separates from the vehicle 10 from the rear of the vehicle 10, and the battery 20 is mounted on the mounting table.

The battery may be mounted as a power source for a member (for example, an auxiliary machine) different from the traveling motor.
The release part 104 may not be accommodated in the protruding part 103. For example, the protruding portion 103 may be provided adjacent to the release portion 104.

  As long as the fixing member 30 is provided corresponding to the striker 12 provided in the vehicle 10, the shape of the case 22 may be any shape such as a polygon other than a square or a circle.

  DESCRIPTION OF SYMBOLS 10 ... Vehicle, 12 ... Striker, 20 ... Battery, 41 ... Latch, 51 ... Pole, 70 ... Battery attaching / detaching device, 87 ... Mounting table, 100 ... Control device, 102 ... First detection switch, 104 ... Release part, 105 ... Second detection switch.

Claims (5)

A battery attachment / detachment for attaching / detaching a battery, which is fixed to the striker of the vehicle at a fixed position and is released from the fixed position at a release position, and a holding mechanism for holding the latch at the fixed position to / from the vehicle. A device,
A mounting table on which the battery is mounted;
A first detector that is provided on the mounting table and detects that the latch is in the fixed position when the mounting table is close to the vehicle;
A battery attachment / detachment device comprising: a second detection unit that is provided on the mounting table and detects a holding state of the holding mechanism when the mounting table approaches the vehicle. In the mounting table, the holding mechanism is in contact with the holding mechanism in a state in which the latch is held at the fixed position, and extends toward the holding mechanism to press the holding mechanism to A release portion for releasing the holding of the latch is provided,
The battery attaching / detaching device according to claim 1, wherein the second detection unit is provided in the release unit and detects contact between the release unit and the holding mechanism. When contact between the holding mechanism and the releasing unit is detected by the second detecting unit in a state in which the holding of the latch by the holding mechanism is released by the releasing unit, a predetermined stop is set in advance. A disengagement determination unit configured to determine that the battery has been disengaged from the vehicle when the first detection unit does not detect that the latch is in the fixed position at the stop position. Item 3. The battery attaching / detaching device according to Item 2 . When the first detection unit detects that the latch is in the fixed position, and the second detection unit detects that the holding mechanism holds the latch in the fixed position, the battery is battery attachment apparatus according to any one of claims 1 to 3 comprising a mounting determination unit that determines that mounted on the vehicle. The mounting table includes a plurality of first detection units and a plurality of latches corresponding to a latch for individually fixing a plurality of strikers provided in the vehicle, and a holding mechanism for individually holding the latches. A second detector is provided;
Claim 1-Claim which permits the separation | separation from the said vehicle of the said mounting stand when the detection results of all the said 1st detection parts are the same, and the detection results of all the said 2nd detection parts are the same. Item 5. The battery attaching / detaching device according to any one of Items 4 to 4.