JP2020035560A - Power supply device - Google Patents

Abstract

To provide a power supply device that can properly connect a terminal on the other end and a power supply terminal.SOLUTION: A power supply device 1 includes a power supply terminal 22, an elevating unit 30, and a tilt adjusting unit 50. The power supply terminal 22 is a power supply terminal connected to a power receiving terminal 2a. The elevating unit 30 includes at least a first arm 32a that supports the power supply terminal 22, and a second arm 32b that is slidably connected to the first arm 32a in the elevating direction and accommodates the first arm 32a inside. The elevating unit 30 elevates the first arm 32a. The tilt adjusting unit 50 is provided between the power supply terminal 22 and the first arm 32a, and adjusts the tilt of the power supply terminal 22 with respect to the power receiving terminal 2a.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a power supply device.

  2. Description of the Related Art Conventionally, as a power supply device, for example, Patent Literature 1 discloses an electrode connection device of a slide telescopic type. The electrode connection device includes a telescopic part in which a plurality of tubular members are slidably connected, and first and second connectors provided at both ends of the telescopic part. The electrode connection device can adjust the distance between the first connector and the second connector by expanding and contracting the expansion and contraction portion.

JP-A-7-322462

  By the way, in the electrode connection device described in Patent Document 1, for example, there are cases where the first connector cannot be automatically connected to the mating connector, and there is room for further improvement in this regard.

  Therefore, the present invention has been made in view of the above, and an object of the present invention is to provide a power supply device that can appropriately connect a terminal on the other side and a power supply terminal.

  In order to solve the above-described problem and achieve the object, a power supply device according to the present invention includes a power supply terminal for power supply connected to a terminal on the other side, a first support member that supports the power supply terminal, and An elevating unit for slidably connecting the first support member in the elevating direction and having at least a second support member accommodating the first support member inside; an elevating unit for elevating the first support member; And a tilt adjustment unit provided between the terminal and the first support member to adjust the tilt of the power supply terminal with respect to the counterpart terminal.

  It is preferable that the power supply device further includes a protection unit that surrounds the elevating unit and the tilt adjusting unit, expands and contracts in accordance with the elevating operation of the elevating unit, and protects the elevating unit and the tilt adjusting unit.

  The power supply device may further include a power supply unit configured to supply power to the power supply terminal, wherein the first support member is electrically connected to the second support member and the power supply terminal, and supplies a current flowing from the second support member to the power supply unit. A first conductor is provided for flowing to a power supply terminal, and the second support member is electrically connected to the power supply unit and the first support member, and is configured to flow a current supplied from the power supply unit to the first support member. Preferably, two conductors are provided.

  Since the power supply device according to the present invention includes the inclination adjusting unit that adjusts the inclination of the power supply terminal, the terminal on the other end and the power supply terminal can be properly connected.

FIG. 1 is a front view illustrating a configuration example of a power supply device according to the embodiment. FIG. 2 is a front view illustrating an operation example of the power supply device according to the embodiment. FIG. 3 is a front view illustrating an example of use of the power supply device according to the embodiment. FIG. 4 is a front view illustrating a usage example of the power supply device according to the embodiment. FIG. 5 is a front view illustrating a configuration example of a power supply device according to a modification of the embodiment. FIG. 6 is a front view illustrating a configuration example of a power supply device according to a reference example. FIG. 7 is a perspective view illustrating a configuration example of a telescopic cable according to a reference example. FIG. 8 is a front view illustrating an operation example of the power supply device according to the reference example. FIG. 9 is a perspective view illustrating a configuration example of a telescopic cable according to a first modification of the reference example. FIG. 10 is a cross-sectional view illustrating a configuration example of a telescopic cable according to a first modification of the reference example. FIG. 11 is a perspective view illustrating a configuration example of a telescopic cable according to a second modification of the reference example. FIG. 12 is a cross-sectional view illustrating a configuration example of a telescopic cable according to a second modification of the reference example.

  An embodiment (embodiment) for carrying out the present invention will be described in detail with reference to the drawings. The present invention is not limited by the contents described in the following embodiments. The components described below include those that can be easily assumed by those skilled in the art and those that are substantially the same. Further, the configurations described below can be appropriately combined. Further, various omissions, substitutions, or changes in the configuration can be made without departing from the spirit of the present invention.

[Embodiment]
The power supply device 1 according to the embodiment will be described with reference to the drawings. FIG. 1 is a front view illustrating a configuration example of a power supply device 1 according to the embodiment. FIG. 2 is a front view illustrating an operation example of the power supply device 1 according to the embodiment. FIG. 3 is a front view illustrating a usage example of the power supply device 1 according to the embodiment. FIG. 4 is a front view illustrating a usage example of the power supply device 1 according to the embodiment.

  The power supply device 1 according to the embodiment is, for example, a device that automatically connects to a power receiving terminal 2a (see FIG. 3 and the like) of the vehicle 2 and supplies power. The power supply device 1 is, for example, a charging device provided in a so-called charging stand, and is buried underground. The power supply device 1 automatically connects to the power receiving terminal 2a of the vehicle 2 and supplies power while the vehicle 2 is stopped at the charging station. Hereinafter, the power supply device 1 will be described in detail.

  The power supply device 1 includes a power supply unit 10, a power supply connection unit 20, a lifting unit 30, a protection cover 40 as a protection unit, and an inclination adjustment unit 50. The power supply unit 10 supplies power. The power supply unit 10 has a power cable 11. The power cable 11 is a conductive line that allows current to flow. The power cable 11 has one end connected to the power supply unit 10 and the other end connected to the elevating unit 30. The power supply unit 10 supplies power to the power supply connection unit 20 via the power cable 11 and the elevating unit 30.

  The power supply connection unit 20 is a connection unit for supplying power. The power supply connection unit 20 has a terminal block 21 and a power supply terminal 22. The terminal block 21 supports the power supply terminal 22. The terminal block 21 is formed in a flat plate shape, and a power supply terminal 22 is provided on one surface (mounting surface). The power supply terminal 22 is a terminal for supplying power. The power supply terminal 22 is formed of a metal member, and has a positive electrode (+) and a negative electrode (-). The power supply terminal 22 is provided on the mounting surface of the terminal block 21, and is electrically directly connected to the power receiving terminal 2a.

  The elevating unit 30 is an actuator that moves the power supply connection unit 20 up and down. The elevating unit 30 has a base 31, an extendable arm 32, and a drive control unit (not shown). The base 31 supports the telescopic arm 32. The telescopic arm 32 is provided on the base 31 and moves the power supply connection unit 20 up and down in the elevating direction. Here, the vertical direction is, for example, a direction along the vertical direction. The telescopic arm 32 has a first arm 32a as a first support member, a second arm 32b as a second support member, a third arm 32c as a second support member, and power supply pins 32g and 32h.

  The first arm 32a is a rod-shaped member extending along the longitudinal direction. In the longitudinal direction, one side of the first arm 32a is connected to the power supply connection portion 20 via power supply pins 32g and 32h, and the other side is slidably connected to the second arm 32b. The first arm 32a supports the power supply connection portion 20 at one end. The first arm 32a is provided with a conductor 320a as a first conductor. The conductor 320a extends along the longitudinal direction of the first arm 32a. The conductor 320a has a conductor 321a on the positive electrode side and a conductor 322a on the negative electrode side. The conductor 321a on the positive electrode side and the conductor 322a on the negative electrode side are insulated through the slit 32i. One end of the positive conductor 321a is connected to the positive power supply pin 32g, and the other end is connected to the positive conductor 320b of the second arm 32b. One end of the negative conductor 322a is connected to the negative power supply pin 32h, and the other end is connected to the negative conductor 320b of the second arm 32b. The conductor 320a allows the current supplied through the second arm 32b to flow to the power supply pins 32g and 32h.

  The second arm 32b is a tubular member or the like extending along the longitudinal direction. In the longitudinal direction, one side of the second arm 32b is slidably connected to the first arm 32a, and the other side is slidably connected to the third arm 32c. The length in the longitudinal direction of the second arm 32b is equal to the length in the longitudinal direction of the first arm 32a. The second arm 32b has a space portion having the same size as the outer shape of the first arm 31a inside the second arm 32b. The second arm 32b accommodates the first arm 32a inside in a lowered state in which the first arm 32a is lowered along the elevating direction. For example, as shown in FIG. 2, when the first arm 32 a is located at the lowest point in the lowered state of the first arm 32 a, the second arm 32 b completely accommodates the first arm 32 a inside as shown in FIG. 2. . The second arm 32b is provided with a conductor 320b as a second conductor. The conductor 320b extends along the longitudinal direction of the second arm 32b. One end of the positive conductor 320b is connected to the positive conductor 321a of the first arm 32a, and the other end is connected to the positive conductor 320c of the third arm 32c. One end of the negative conductor 320b is connected to the negative conductor 322a of the first arm 32a, and the other end is connected to the negative conductor 320c of the third arm 32c. The conductor 320b allows the current supplied through the third arm 32c to flow through the first arm 32a.

  The third arm 32c is a tubular member or the like extending along the longitudinal direction. One side of the third arm 32c is slidably connected to the second arm 32b in the longitudinal direction, and the other side is fixed to the base 31. The length in the longitudinal direction of the third arm 32c is slightly shorter than the length in the longitudinal direction of the second arm 32b. The third arm 32c has a space inside the third arm 32c that is slightly shorter in the vertical direction than the second arm 31b. The third arm 32c accommodates the second arm 32b inside in a lowered state in which the second arm 32b is lowered along the vertical direction. For example, as shown in FIG. 2, when the second arm 32b is located at the lowest point in a lowered state of the second arm 32b, a part of the second arm 32b is exposed as shown in FIG. To accommodate the second arm 32b inside. The third arm 32c is provided with a conductor 320c as a second conductor. The conductor 320c extends along the longitudinal direction of the third arm 32c. One end of the positive conductor 320c is connected to the positive conductor 320b of the second arm 32b, and the other end is connected to the positive electrode of the power supply unit 10 via the power cable 11. One end of the negative conductor 320c is connected to the negative conductor 320b of the second arm 32b, and the other end is connected to the negative electrode of the power supply unit 10 via the power cable 11. The conductor 320c allows the current supplied from the power supply unit 10 to flow through the second arm 32b.

  The power supply pins 32g and 32h are conductors for supplying power. One end of the power supply pin 32g is connected to the conductor 321a on the positive electrode side, and the other end is connected to the positive electrode of the power supply terminal 22 via the terminal block 21. One end of the power supply pin 32h is connected to the conductor 322a on the negative electrode side, and the other end is connected to the negative electrode of the power supply terminal 22 via the terminal block 21. A mechanism is provided for pressing the power supply pins 32g and 32h against the terminal block 21 with a constant pressure using a spring or the like. Thus, the power supply pins 32g and 32h are electrically connected to the power supply terminal 22 via the terminal block 21 even when the terminal block 21 is inclined with respect to the horizontal direction.

  As described above, the extendable arm 32 is provided with the conductors 320a to 320c that allow current to flow from the power supply unit 10 to the power supply terminal 22, and the power supply pins 32g and 32h. Thereby, the telescopic arm 32 allows a current to flow from the power supply unit 10 to the power supply terminal 22 via the conductors 320a to 320c and the power supply pins 32g and 32h in a range from the lowered state illustrated in FIG. 2 to the ascended state illustrated in FIG. be able to.

  The drive control unit extends and contracts the telescopic arm 32 along the longitudinal direction. The drive control unit, for example, electrically drives the first and second arms 32a and 32b to linearly move in the elevating direction. In addition, the drive control unit may cause the first and second arms 32a and 32b to linearly move in the elevating direction by, for example, pneumatic pressure.

  The protection cover 40 protects the elevating unit 30 and the inclination adjusting unit 50. The protective cover 40 is formed, for example, in a tubular shape, and its side wall is formed in a bellows shape. The protection cover 40 has one end connected to the upper surface of the base 31 and the other end connected to the lower surface of the terminal block 21 (the surface opposite to the power supply terminal 22) in a state in which the elevating unit 30 and the tilt adjusting unit 50 are arranged inside. )It is connected to the. The protective cover 40 is closed between the upper surface of the base 31 and the lower surface of the terminal block 21. The protective cover 40 surrounds the elevating unit 30 and the inclination adjusting unit 50 and expands and contracts according to the elevating operation of the elevating unit 30. Thus, the protection cover 40 can protect the elevating unit 30 and the tilt adjusting unit 50 from external dust and the like.

  The inclination adjusting unit 50 adjusts the inclination. The tilt adjustment unit 50 is provided between the power supply connection unit 20 and the first arm 32a. The tilt adjusting unit 50 is configured by, for example, a ball joint. The tilt adjusting unit 50 has, for example, a sphere 50a and a socket (not shown). The sphere 50a is provided at the tip of the first arm 32a (the end on the power supply connection unit 20 side). The socket is provided on the surface (lower surface) of the terminal block 21 opposite to the power supply terminal 22. The socket comes into spherical contact with the sphere 50a, and is fixed to the sphere 50a so as to be rotatable in an arbitrary direction. The inclination adjusting unit 50 adjusts the inclination of the power supply terminal 22 with respect to the power receiving terminal 2a. For example, when the inclination of the power supply terminal 22 is shifted with respect to the power reception terminal 2a, the inclination adjustment unit 50 rotates the socket by bringing the power supply terminal 22 into contact with the power reception terminal 2a, and adjusts the inclination of the power supply terminal 22. The adjustment is performed so as to follow the inclination of the power receiving terminal 2a.

  Here, since the power receiving terminal 2a is provided in the vehicle 2, the inclination of the power receiving terminal 2a with respect to the ascending / descending direction (vertical direction) may differ depending on the place where the vehicle 2 stops. For example, as shown in FIG. 3, when the vehicle 2 is stopped at the charging station and the power receiving terminal 2 a is positioned along the horizontal direction, the inclination adjusting unit 50 causes the power supply terminal 22 to contact the power receiving terminal 2 a. To rotate the socket so that the power supply terminal 22 extends along the horizontal direction. On the other hand, for example, as shown in FIG. 4, when the power receiving terminal 2 a is positioned to be inclined with respect to the horizontal direction in a state where the vehicle 2 is stopped at the charging stand, the inclination adjusting unit 50 sets the power supply terminal 22 to the power receiving terminal 2 a. The socket is rotated by the contact, so that the power supply terminal 22 is inclined in the same direction as the power receiving terminal 2a with respect to the horizontal direction.

  As described above, the power supply device 1 according to the embodiment includes the power supply terminal 22, the elevating unit 30, and the tilt adjusting unit 50. The power supply terminal 22 is a power supply terminal connected to the power receiving terminal 2a. The elevating unit 30 includes a first arm 32a that supports the power supply terminal 22, a second arm 32b that slidably connects the first arm 32a in the elevating direction, and accommodates the first arm 32a inside, and a second arm 32b. There is a third arm 32c that slidably connects the arm 32b in the elevating direction and accommodates the second arm 32b inside. The elevating unit 30 elevates the first arm 32a and the second arm 32b. The inclination adjusting unit 50 is provided between the power supply terminal 22 and the first arm 32a, and adjusts the inclination of the power supply terminal 22 with respect to the power receiving terminal 2a.

  With this configuration, the power supply device 1 can house the first arm 32a and the second arm 32b inside the third arm 32c, so that the height in the vertical direction can be relatively reduced, and the space can be saved. Can be realized. Further, the power supply device 1 can adjust the deviation of the inclination of the power supply terminal 22 with respect to the power receiving terminal 2a even if the inclination of the power supply terminal 22 with respect to the power reception terminal 2a is deviated before the power supply. That is, the power supply device 1 can secure a contact area between the power receiving terminal 2a and the power supply terminal 22 even when the inclination of the power supply terminal 22 with respect to the power reception terminal 2a is shifted. As a result, the power supply device 1 can properly connect the power receiving terminal 2a and the power supply terminal 22.

  In addition, the power supply device 1 includes a protection cover 40 that surrounds the elevating unit 30 and the inclination adjusting unit 50, expands and contracts in accordance with the elevating operation of the elevating unit 30, and protects the elevating unit 30 and the inclination adjusting unit 50. With this configuration, the power supply device 1 can protect the elevating unit 30 and the tilt adjusting unit 50 from external dust and the like. In the power supply device 1, since the protection cover 40 expands and contracts in accordance with the elevating operation, the elevating unit 30 and the tilt adjusting unit 50 can be protected from external dust and the like in both the descending state and the ascending state of the extensible arm 32. it can.

  The power supply device 1 includes a power supply unit 10 that supplies power to the power supply terminal 22. The first arm 32a is electrically connected to the second arm 32b and the power supply terminal 22, and is provided with a conductor 320a that allows a current flowing from the second arm 32b to flow to the power supply terminal 22. The second arm 32b is electrically connected to the third arm 32c and the first arm 32a, and is provided with a conductor 320b that allows a current flowing from the third arm 32c to flow to the first arm 32a. The third arm 32c is electrically connected to the power supply unit 10 and the second arm 32b, and is provided with a conductor 320c that allows the current supplied from the power supply unit 10 to flow through the second arm 32b. With this configuration, the power supply device 1 can flow a current from the power supply unit 10 to the power supply terminal 22 via the conductors 320a to 320c. With this configuration, the power supply device 1 can simplify the wiring and can improve the installability.

  In the above description, the example in which the tilt adjustment unit 50 is configured by a ball joint has been described. However, the present invention is not limited to this, and may be configured by a universal joint such as a cardan joint.

  Further, the example in which the elevating unit 30 has three arms (first to third arms 32a to 32c) has been described, but the invention is not limited to this. The elevating unit 30 may be configured by two arms, or may be configured by four or more arms.

  Also, an example in which the power supply unit 10 and the power supply terminal 22 are electrically connected via the conductors 320a to 320c has been described. However, the present invention is not limited thereto, and the power supply unit 10 and the power supply terminal 22 are electrically connected using a power supply line or the like. May be connected.

  In addition, the power supply apparatus 1 has been described with respect to an example in which the power supply terminal 22 and the power reception terminal 2a are electrically directly connected (contact power supply). However, the present invention is not limited thereto. The present invention may be applied to non-contact power supply that is connected by using.

  In addition, as shown in FIG. 5, the power supply device 1 may supply power using power supply cords 32j and 32k instead of the power supply pins 32g and 32h. FIG. 5 is a front view illustrating a configuration example of a power supply device 1 according to a modification of the embodiment. One end of the power supply cord 32j is connected to the conductor 321a on the positive electrode side, and the other end is connected to the positive electrode of the power supply terminal 22 via the terminal block 21. One end of the power supply cord 32k is connected to the conductor 322a on the negative electrode side, and the other end is connected to the negative electrode of the power supply terminal 22 via the terminal block 21. The power supply cords 32j and 32k are electrically connected to the power supply terminal 22 via the terminal block 21 even when the terminal block 21 is inclined with respect to the horizontal direction.

(Reference example)
Next, a power supply device 1A according to a reference example will be described. In the reference example, the same components as those in the embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted. FIG. 6 is a front view illustrating a configuration example of a power supply device 1A according to a reference example. FIG. 7 is a perspective view illustrating a configuration example of a telescopic cable 60 according to a reference example. FIG. 8 is a front view illustrating an operation example of the power supply device 1A according to the reference example.

  The power supply device 1A according to the reference example is, for example, a device that automatically connects to the above-described power receiving terminal 2a of the vehicle 2 and supplies power. The power supply device 1A is, for example, a charging device provided in a so-called charging stand, and is buried underground. The power supply device 1A automatically connects to the power receiving terminal 2a of the vehicle 2 and supplies power when the vehicle 2 is stopped at the charging station.

  As shown in FIG. 6, the power supply device 1A includes a power supply unit 10, a power supply connection unit 20, an elevating unit 30A, and a telescopic cable 60. The lifting unit 30A is an actuator that raises and lowers the power supply connection unit 20. The elevating unit 30A includes a base 31, a bending arm 32A, and a drive control unit (not shown). The bending arm 32 </ b> A is provided on the base 31 and moves the power supply connection unit 20 up and down in the elevating direction. The bending arm 32A has a first arm 32d, a second arm 32e, and a connecting portion 32f.

  The first arm 32d is a rod-shaped member extending along the longitudinal direction. In the longitudinal direction, the first arm 32d has one side connected to the power supply connection portion 20 to support the power supply connection portion 20, and the other side flexibly connected to the second arm 32e via the connection portion 32f. The second arm 32e is a rod-shaped member extending along the longitudinal direction. In the longitudinal direction, one side of the second arm 32e is flexibly connected to the first arm 32d via the connecting portion 32f, and the other side is fixed to the base 31. The bending arm 32A moves the power supply connection unit 20 in the elevating direction by bending the first and second arms 32d and 32e around the connecting portion 32f.

  The telescopic cable 60 is a telescopic conductor that allows current to flow. The telescopic cable 60 has a first cable 61 and a second cable 62 as shown in FIG. The first cable 61 has a plurality of flat conductive members 61f and a bent portion 61e that connects the conductive members 61f in a bendable and conductive manner. The conductive member 61f is formed in a rectangular shape, and the width of the conductive member 61f is set in accordance with the output current of the power supply device 1A. The long sides of the first cable 61 are bendable and conductively connected at the bent portion 61e. One end of the first cable 61 is connected to the power supply unit 10 via the power cable 11, and the other end is connected to the positive electrode of the power supply terminal 22. The first cable 61 bends or expands at the bending portion 61e in accordance with the elevating operation of the elevating portion 30A, and expands and contracts. That is, the first cable 61 expands and contracts by changing the bending angle of the bending portion 61e according to the lifting operation of the lifting portion 30A.

  The second cable 62 includes a plurality of flat conductive members 62f and a bent portion 62e that connects the conductive members 62f in a bendable and conductive manner. The conductive member 62f is formed in a rectangular shape, and the width of the conductive member 62f is set in accordance with the output current of the power supply device 1A. The long sides of the second cable 62 are bendable and conductively connected at the bent portion 62e. The second cable 62 has one end connected to the power supply unit 10 via the power cable 11 and the other end connected to the negative electrode of the power supply terminal 22. The second cable 62 bends or expands at the bent portion 62e in accordance with the elevating operation of the elevating portion 30A, and expands and contracts. That is, the second cable 62 expands and contracts by changing the bending angle of the bending portion 62e in accordance with the raising and lowering operation of the raising and lowering portion 30A.

  In the telescopic cable 60, the conductive member 61f of the first cable 61 and the conductive member 62f of the second cable 62 are arranged in parallel with each other. Thereby, the telescopic cable 60 can add the function of a capacitor to the conductive member 61f and the conductive member 62f, and can reduce noise generated in the power supply unit 10. The distance between the conductive member 61f and the conductive member 62f is set in accordance with the output voltage of the power supply device 1A. In the telescopic cable 60, an insulating member is provided between the conductive member 61f and the conductive member 62f, and the conductive member 61f and the conductive member 62f are insulated from each other. Thereby, the telescopic cable 60 can prevent the first cable 61 and the second cable 62 from being short-circuited. The insulating material of the insulating member is appropriately selected in accordance with the output voltage of the power supply device 1A.

  As described above, the power supply device 1A according to the reference example includes a power supply terminal 22 for power supply connected to the power receiving terminal 2a, the power supply unit 10 for supplying power, and the elevating unit 30A that moves up and down the power supply terminal 22; The telescopic cable 60 is provided. The telescopic cable 60 has one end connected to the power supply unit 10 and the other end connected to the power supply terminal 22, and expands and contracts in accordance with the elevating operation of the elevating unit 30A. The telescopic cable 60 has a first cable 61 and a second cable 62. The first cable 61 includes a plurality of flat conductive members 61f and a bent portion 61e that connects the conductive members 61f in a bendable and conductive manner, and is connected to the positive electrode of the power supply terminal 22. The second cable 62 includes a plurality of flat conductive members 62f and a bent portion 62e that connects the conductive members 62f in a bendable and conductive manner, and is connected to the negative electrode of the power supply terminal 22. The first cable 61 bends or expands at the bending portion 61e in accordance with the elevating operation of the elevating unit 30A, and expands and contracts, and the second cable 62 bends or elongates at the bending unit 62e in accordance with the elevating operation of the elevating unit 30A. To expand and contract.

  With this configuration, the power supply device 1A can extend the telescopic cable 60 with the bent arm 32A extended. In addition, the power supply device 1A can fold the telescopic cable 60 in a state where the bending arm 32A is bent. Thus, the power supply device 1A can connect the power supply terminal 22 to the power receiving terminal 2a without lifting the power cable 11 such as a cabtire cable. In addition, the power supply device 1A can be reduced in height when the power supply device 1A is stored by folding the telescopic cable 60.

[First Modification of Reference Example]
Next, a telescopic cable 60A according to a first modification of the reference example will be described. FIG. 9 is a perspective view illustrating a configuration example of a telescopic cable 60A according to a first modification of the reference example. FIG. 10 is a cross-sectional view illustrating a configuration example of a telescopic cable 60A according to a first modification of the reference example. A telescopic cable 60A according to a first modification of the reference example is applied to the power supply device 1A instead of the telescopic cable 60 of the reference example. The telescopic cable 60A is formed by stacking two so-called edgewise coils. The telescopic cable 60 </ b> A has one end connected to the power supply terminal 22 and the other end connected to the power supply unit 10 via the power cable 11. The telescopic cable 60A has a first cable 61A and a second cable 62A.

  The first cable 61A has a conductive member 61a and an insulating member 61b. The conductive member 61a is formed by spirally winding a flat and long conductor around the axis X1. The insulating member 61b covers the conductive member 61a. The second cable 62A has a conductive member 62a and an insulating member 62b. The conductive member 62a is formed by spirally winding a flat and long conductor around the axis X1. The insulating member 62b covers the conductive member 62a. The first cable 61A and the second cable 62A are spirally wound around the axis X1 in a state of being insulated and laminated from each other. The first and second cables 61A and 62A extend and contract according to the elevating operation of the elevating unit 30A.

  As described above, the telescopic cable 60A according to the first modified example of the reference example includes a first cable 61A formed by spirally winding a flat and long conductive member 61a around the axis X1 and a flat cable 61A. And a second cable 62A formed by spirally winding a long conductive member 62a around the axis X1. The first cable 61A and the second cable 62A are spirally wound around the axis X1 in a state of being insulated and laminated from each other. The first and second cables 61A and 62A extend and contract according to the elevating operation of the elevating unit 30A. With this configuration, the power supply device 1A can extend the telescopic cable 60A with the bending arm 32A extended. In addition, the power supply device 1A can fold the telescopic cable 60A with the bending arm 32A bent. Thus, the power supply device 1A can connect the power supply terminal 22 to the power receiving terminal 2a without lifting the power cable 11 such as a cabtire cable. In addition, the power supply device 1A can be reduced in height when the power supply device 1A is stored by folding the telescopic cable 60A.

[Second Modification of Reference Example]
Next, a telescopic cable 60B according to a second modification of the reference example will be described. FIG. 11 is a perspective view showing a configuration example of a telescopic cable 60B according to a second modification of the reference example. FIG. 12 is a cross-sectional view illustrating a configuration example of a telescopic cable 60B according to a second modification of the reference example. A telescopic cable 60B according to a second modification of the reference example is applied to the power supply device 1A instead of the telescopic cable 60 of the reference example. The telescopic cable 60B is formed by stacking two so-called flat spiral coils. The telescopic cable 60 </ b> B has one end connected to the power supply terminal 22 and the other end connected to the power supply unit 10 via the power cable 11. The telescopic cable 60B has a first cable 61B and a second cable 62B.

  The first cable 61B has a conductive member 61c and an insulating member 61d. The conductive member 61c is formed by spirally winding a flat and long conductor around the axis X2. The insulating member 61d covers the conductive member 61c. The second cable 62B has a conductive member 62c and an insulating member 62d. The conductive member 62c is formed by spirally winding a flat and long conductor around the axis X2. The insulating member 62d covers the conductive member 62c. The first cable 61B and the second cable 62B are spirally wound around the axis X2 in a state of being insulated and laminated from each other. The first and second cables 61B and 62B extend and contract according to the elevating operation of the elevating unit 30A.

  As described above, the telescopic cable 60B according to the second modification of the reference example includes a first cable 61B formed by spirally winding a flat and long conductive member 61c around the axis X2, and a flat cable 60B. And a second cable 62B formed by spirally winding a long conductive member 62c around the axis X2. The first cable 61B and the second cable 62B are spirally wound around the axis X2 in a state of being insulated and laminated from each other. The first and second cables 61B and 62B extend and contract according to the elevating operation of the elevating unit 30A.

  With this configuration, the power supply device 1A can extend the telescopic cable 60B with the bent arm 32A extended. In addition, the power supply device 1A can fold the telescopic cable 60B in a state where the bending arm 32A is bent. Thus, the power supply device 1A can connect the power supply terminal 22 to the power receiving terminal 2a without lifting the power cable 11 such as a cabtire cable. In addition, the power supply device 1A can be reduced in height when the power supply device 1A is stored by folding the telescopic cable 60B.

1 power supply device 2a power receiving terminal (terminal on the other side)
10 power supply unit 22 power supply terminal 30 lifting unit 32a first arm (first support member)
32b second arm (second support member)
32c third arm (second support member)
40 Protective cover (protective part)
50 inclination adjusting unit 320a conductor (first conductor)
320b conductor (second conductor)
320c conductor (second conductor)

Claims (3)

A power supply terminal for power supply connected to the terminal on the other end;
A first support member that supports the power supply terminal; and a second support member that slidably connects the first support member in a vertical direction and accommodates the first support member inside, (1) an elevating unit for elevating and lowering the support member;
A tilt adjustment unit provided between the power supply terminal and the first support member to adjust a tilt of the power supply terminal with respect to the counterpart terminal;
A power supply device comprising:   The power supply device according to claim 1, further comprising a protection unit that surrounds the elevating unit and the tilt adjusting unit, expands and contracts in accordance with the elevating operation of the elevating unit, and protects the elevating unit and the tilt adjusting unit. A power supply unit for supplying power to the power supply terminal,
The first support member is provided with a first conductor that is electrically connected to the second support member and the power supply terminal and allows a current flowing from the second support member to flow to the power supply terminal.
The said 2nd support member is a 2nd conductor electrically connected to the said power supply part and the said 1st support member, and the electric current supplied from the said power supply part is made to flow to the said 1st support member, The 2nd conductor is provided. The power supply device according to claim 1.

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