JP5238326B2 - Non-contact power feeder - Google Patents

Description

  The present invention relates to a contactless power feeding device used in a trolley system.

  2. Description of the Related Art Conventionally, there is a trolley system that includes a moving body such as a traveling hoist or a carriage and a power supply device that supplies electric power to the moving body. The power supply device is configured to transfer power between a power supply line routed along a rail on which the mobile body travels and an electron receiver provided on the mobile body, and the power received by the power receiver is transferred to the mobile body. It comes to supply. As a power supply device, a brush is used for receiving electrons, and a contact-type power supply device in which this brush is always in contact with a power supply line is widely used (for example, see Patent Document 1).

  However, in the contact-type power supply device, since the brush moves while always in contact with the power supply line, the brush and the power supply line are worn out and must be periodically replaced, resulting in a high running cost.

For this reason, in recent years, a high-frequency current is caused to flow through a power supply line, and an induced current is generated in a received electron that is brought close to the power supply line in a non-contact state by electromagnetic induction caused by a magnetic field generated around the power supply line. There has been proposed a non-contact type power feeding device (see, for example, Patent Document 2).
JP-A-9-255279 (3rd page, FIG. 1) Japanese Patent Laid-Open No. 11-4502 (page 3, FIG. 2)

  Such a trolley system is installed, for example, in a factory or the like, and improvement in its assemblability is desired.

  However, Patent Documents 1 and 2 do not make a proposal for improving the assemblability of the trolley system using the non-contact power feeding device.

  Accordingly, an object of the present invention is to improve the assemblability of a non-contact power feeding device used in a trolley system.

According to a first aspect of the present invention, there is provided a non-contact type power supply device that is provided in a trolley system including a moving body and supplies electric power to the moving body, and includes a plurality of power supply lines through which a current flows in a conductor portion, and the power supply. A wiring member in which an electric wire is routed, an electric wire hanger that is attached to the wiring member and attached to the wiring member, and is connected to the moving body in a non-contact state with respect to the power supply line, A power receiving device that supplies power obtained by electromagnetic induction by current flowing through the power supply line to the moving body; and a connection tool that connects the power supply lines to each other, and the connection tool has ends facing each other. A connection main body part that is externally connected to the conductor parts from the side of the pair of conductor parts and connects the conductor parts; and a base part to which the connection main body parts are attached; and the connection main body part is the conductor part With the outer sheath Characterized in that it is rotatably connected to the part.

  According to a second aspect of the present invention, in the contactless power supply device according to the first aspect, the connection main body portion is externally coupled to the conductor portion by being covered with the pair of conductor portions. .

  According to a third aspect of the present invention, in the non-contact power feeding device according to the first or second aspect, the connection tool covers an outer side of the connection main body portion in a state where a pair of the conductor portions are connected to each other. It is characterized by having.

  According to the first aspect of the present invention, the connection main body portion of the connector for connecting the feeder lines is externally covered by these conductor portions from the side of the pair of conductor portions whose end portions face each other. By connecting the conductor portion, the connecting member can be attached to the power supply line after the power supply line is wired to the wiring member, so that the connection work between the power supply lines can be facilitated, and thus the non-contact power supply device Assembling property can be improved.

  According to the second aspect of the present invention, in addition to the effect of the first aspect, the connection main body portion is externally coupled to the conductor portion by being sheathed by the pair of conductor portions, so that the joiner 8 can be attached. It can be simplified, and therefore, the assemblability of the non-contact power feeding device can be improved.

  According to the 3rd aspect of this invention, in addition to the effect of the said 1st and 2nd aspect, a connection tool has a cover which covers the outer side of the connection main-body part of the state which connected a pair of conductor parts. As a result, it is possible to prevent the connection main body portion from being exposed, thereby improving safety.

  A first embodiment of the present invention will be described in detail with reference to the drawings. 1 to 8 show a trolley system using a non-contact power feeding device according to a first embodiment of the present invention, FIG. 1 is a schematic configuration diagram showing the trolley system, and FIG. 2 is II in FIG. FIG. 3 is an enlarged perspective view showing the connection end of the feeder line, FIG. 4 is an enlarged perspective view showing a state where the feeder line is connected by a connector, and FIG. FIG. 6 is an enlarged perspective view showing a state in which the connection body portion of the connection tool is to be attached to the connection end portion of the feeder line, and FIG. 7 is a connection end portion of the feed line. FIG. 8 is an enlarged perspective view showing a state in which the connection main body part of the connection tool attached to the connection end of the feeder line is arranged in a normal state. .

  As shown in FIG. 1, the trolley system 1 includes a moving body 3 that can move along a moving body rail (not shown), and a non-contact power supply device 4 that supplies electric power to the moving body 3. Yes.

  The moving body rail for guiding the moving body 3 is fixedly installed on a housing such as a factory or a warehouse not shown. Then, the moving body 3 drives the motor 31 with the electric power supplied from the non-contact type power feeding device 4 to drive a predetermined work, for example, travel along the rail for the moving body, the operation of the chain block (not shown), the conveying belt. And so on.

  The non-contact type power feeding device 4 includes an elongated plate-shaped wiring member 2, a plurality of mutually connected power feeding wires 6 that are routed on the wiring member 2 and are supplied with a high-frequency current from a power source 5, and a moving body 3 and a power receiving device 7 that supplies power obtained from the feeder 6 to the moving body 3.

  The power receiving device 7 is connected to the moving body 3 in a non-contact state with respect to the power supply line 6, and moves along the routing member 2 and the power supply line 6 by being pulled by the mobile body 3. The power receiving device 7 supplies the moving body 3 with electric power obtained by electromagnetic induction using a current flowing through the feeder 6.

  The power receiving device 7 includes a core 71, a resonance circuit 72, and a constant voltage circuit 73 as received electrons arranged in a non-contact state on the power supply line 6.

  As shown in FIG. 2, the core 71 has an outer shell 71 s having a substantially U-shaped cross section so as to straddle the feeder wire 6 from the side, and is located on both sides of the feeder wire 6 in the outer shell 71 s. Thus, a pair of coils 71p and 71m are arranged to face each other to constitute an electromagnetic pickup. Here, the coils 71p and 71m are preferably as close as possible to the feeder line 6. Then, when a high frequency current is supplied from the power source 5 to the power supply line 6, the generation / attenuation phenomenon of the magnetic field MF corresponding to the frequency of the supplied high frequency current occurs around the power supply line 6. As the magnetic flux density changes, an induced current is generated in the coils 71p and 71m (electromagnetic induction).

  In the power receiving device 7, the current generated in the coils 71 p and 71 m in this way is stabilized by the resonance circuit 72 shown in FIG. 1 and then sent from the constant voltage circuit 73 to the inverter 32 provided in the moving body 3. In the moving body 3, the current is converted into direct current by the inverter 32 and supplied to the motor 31.

  As shown in FIG. 3, the feeder 6 is formed as a long body having a fixed length by a conductor 61 and an insulating part 62 in which the conductor 61 is embedded in the center. The feeder line 6 is used by connecting a plurality of feeder lines according to the length of wiring. The insulating part 62 is formed in a circular cross section with a flexible synthetic resin or the like, and the conductor part 61 formed into a tubular shape is inserted into the insulating part 62 and extruded to continuously feed the power supply line 6 having a certain length. Can be molded.

  As shown in FIG. 1, when the feeders 6 are routed along the routing member 2, the feeder wires 6 are connected via a connecting tool such as a joiner 8, an L-type joiner 8 </ b> A, and an end joiner 8 </ b> B.

  Here, a straight portion, a bent portion, a curved portion, and the like are formed on the routing member 2 along a preset travel route of the moving body 3, and accordingly, the feeder 6 is also a straight line of the routing member 2. The portion becomes a straight routing portion 6A, the bent portion becomes a bent routing portion 6B, and the curved portion becomes a curved routing portion 6C. Therefore, the straight wiring portion 6A of the feeder 6 is connected by the joiner 8, and the curved wiring portion 6C is connected by the L-shaped joiner 8A. In addition, the feed line 6 is routed so that the forward line 6m and the return line 6n are substantially parallel to each other, but the end portions of both the lines 6m and 6n are connected by an end joiner 8B. The

  The feeder 6 is attached to the routing member 2 by an electric wire hanger 9. The electric wire hanger 9 prevents the feed line 6 from hanging down while routing the feed line 6 along the routing member 2.

  As shown in FIGS. 2 and 4, the wire hanger 9 is formed in a substantially U shape by a pair of holding arms 9a and 9b and a connecting portion 9c for connecting the base ends of the holding arms 9a and 9b. Then, the connecting portion 9c is coupled to the routing member 2 via coupling means (not shown). Holding portions 91 and 91 are provided at the distal ends of the holding arms 9a and 9b, respectively, and the feeders 6m and 6n are held between the holding portions 91 and 91, respectively.

  As shown in FIGS. 5 and 6, the joiner 8 that connects the power supply lines 6 to each other in a straight line has a connection main body portion 81 that connects a pair of conductor portions 61 and 61. The connection main body 81 is externally attached to the conductor portions 61 and 61 from the side of the pair of conductor portions 61 and 61 whose end portions face each other so as to connect the conductor portions 61 and 61.

  The connection main body 81 is formed of an electrically conductive member such as a copper plate, and is provided with a pair of sandwiching portions 82 and 83 that are respectively sandwiched by the conductor portions 61 and 61 to be connected. Each clamping part 82, 83 is provided with contact pieces 82a, 82b and 83a, 83b that confront each other with a resilient force in the closing direction, and these contact pieces 82a, 82b and 83a, 83b are formed in the outer shape of the feeder 6 ( It is formed in an arc shape substantially along a circular shape.

  The connection main body 81 is attached to a base portion 84 formed in a substantially rectangular parallelepiped shape with a predetermined width W by an insulating material such as a synthetic resin, and the above-described sandwiching is performed from one end portion in the height h direction of the base portion 84. The parts 82 and 83 are projected. These clamping parts 82 and 83 are electrically connected by a connecting part (not shown) embedded in the base part 84.

  At the time of connecting the power supply line 6, as shown in FIG. 6, the conductor part 61, at the end of the power supply lines 6 and 6 to be connected (in this embodiment, indicated by one of the power supply lines 6n and 6n) 61 is exposed for the required length, and the conductor portions 61 and 61 are arranged in a state of facing in a straight line. Then, as shown in FIG. 6, the sandwiching portions 82 and 83 of the connection main body 81 are arranged on the sides of the abutted conductor portions 61 and 61, and as shown in FIG. Is pushed into the conductor portions 61, 61. Then, when the sandwiching portions 82 and 83 are pushed into the conductor portions 61 and 61, the sandwiching portions 82 and 83 are temporarily opened along the outer sides of the conductor portions 61 and 61 and then closed with elasticity, thereby sandwiching the conductor portions 61 and 61. Worn. That is, the connection main body 81 is coupled to the conductor portions 61 and 61 by being covered with the pair of conductor portions 61 and 61.

  At this time, the base portion 84 is disposed on the side opposite to the wiring member 2 with respect to the feeder 6, and the base portion 84 is sandwiched between the conductor portions 61 and 61 as indicated by an arrow X in FIG. As shown in FIG. 8, the base portion 84 is arranged on the routing member 2 side by rotating around the sandwiched portions 82 and 83 that are worn.

  In addition, as illustrated in FIG. 4, the joiner 8 includes a cover 85 that covers the outside of the connection main body 81 in a state where the pair of conductors 61 and 61 are connected to each other.

  As shown in FIG. 5, the cover 85 has a length L (see FIG. 4) that can cover the base portion 84 and the sandwiching portions 82 and 83 of the connection main body portion 81 protruding from the base portion 84. After covering the open side from the connection main body 81 side in the state shown in FIG. 8, the base part 84 is entirely covered as shown in FIG.

  By the way, in the present embodiment, the feeders 6 and 6 are connected to each other by the joiner 8. At that time, as shown in FIGS. 4 and 6 to 8, the feeder 6 is near both sides of the attachment portion of the joiner 8. Is supported by the wiring member 2 via the wire hangers 9 and 9.

  Further, when the wire hanger 9 is arranged in the vicinity of the joiner 8 as described above, the cover 85 is engaged with the wire hanger 9 when the connection main body 81 is covered with the cover 85 as shown in FIGS. A mating protrusion 92 is provided.

  Specifically, the protruding portion 92 protrudes in a rectangular shape having substantially the same width as the base portion 84 on the side surface where the holding arm 9 a of the wire hanger 9 faces the joiner 8. When the sandwiching portions 82 and 83 and the base portion 84 are covered, both end portions of the cover 85 are engaged with the protruding portions 92.

  According to the trolley system 1 of the present embodiment described above, since the core 71 does not directly contact the power supply line 6 by using the non-contact power supply device 4, the core 71 and the power supply line 6 are not worn and the Maintenance can be reduced.

  In addition, since the core 71 and the power supply line 6 are not in contact with each other in this manner, there is no sliding resistance between them, and the traveling speed of the moving body 3 can be increased, and the power supply line 6 is curved. But you can receive power. Furthermore, there is no power spark generated when a contact brush is used as in the prior art, and the exposure of the power receiving portion is reduced to improve safety. Furthermore, even in a place with a lot of moisture, a short circuit can be efficiently suppressed, and an instantaneous power failure due to poor contact can be prevented.

  Further, in the trolley system 1 using the non-contact type power feeding device 4 as described above, in the present embodiment, when connecting the power feeding lines 6 to each other by the joiner 8, the connection main body 81 of the joiner 8 is connected to the end. The conductor portions 61 and 61 are covered from the side of the pair of conductor portions 61 and 61 facing each other so as to connect the conductor portions 61 and 61. Therefore, the joiner 8 can be attached after the feeding line 6 is routed, and the routing operation of the feeding line 6 can be facilitated. Therefore, the assemblability of the non-contact power feeding device 4 can be improved.

  Moreover, in this embodiment, since the connection main-body part 81 is couple | bonded with the conductor parts 61 and 61 by covering with a pair of conductor parts 61 and 61, attachment of the connection main-body part 51 to the conductor parts 61 and 61 is carried out. This can be done with a single touch, and the joiner 8 can be easily attached.

  Moreover, in this embodiment, the joiner 8 has the cover 85 which covers the outer side of the connection main-body part 81 of the state which connected a pair of conductor parts 61 comrades. Therefore, since it can prevent that the connection main-body part 81 will be in the exposed state, while improving safety | security, generation | occurrence | production of a spark can be reduced and also a short circuit can be suppressed even in a place with much moisture.

  Further, the feeder 6 is supported on the wiring member 2 through the wire hanger 9 at both sides of the attachment portion of the joiner 8. Therefore, when the joiner 8 is clamped from the side of the conductor portions 61, 61, it is possible to suppress the bending of the connecting end portion of the feeder 6 so that the joiner 8 can be easily and reliably attached. Efficiency of connection work of the feeder 6 can be improved.

  Furthermore, since the protruding portion 92 with which the cover 85 engages is provided on the wire hanger 9, when the connection main body portion 81 and the base portion 84 are covered with the cover 85, the cover 85 is the protruding portion 92 of the wire hanger 9. Therefore, it is possible to prevent the joiner 8 from rotating.

  Next, a second embodiment of the present invention will be described in detail with reference to the drawings. 9 is an enlarged perspective view showing a part of the non-contact power feeding apparatus according to the present embodiment, FIG. 10 is a perspective view showing a wiring member unit of the non-contact power feeding apparatus according to the present embodiment, and FIG. The perspective view which shows the state which connected the wiring member units concerning this embodiment, FIG. 12 shows the state which tries to attach the connection main-body part of a connector to the connection end part of the electric power feeding line concerning this embodiment. It is an expansion perspective view. Note that the same parts as those of the first embodiment are denoted by the same reference numerals, and description thereof is also omitted.

  As shown in FIGS. 9 and 10, the present embodiment is different from the first embodiment in the routing member 2 </ b> A of the non-contact power feeding device 4 </ b> A. The routing member 2A of the present embodiment is formed in a duct shape having a rectangular cross section in which an opening 2Aa is formed on a wall of one side, and feed lines 6 (6m, 6n) are respectively provided on a pair of walls of the routing member 2A. Is attached by the wire hanger 9. Thus, the wiring member unit 95 (FIG. 10) is configured by attaching the feeder 6 to the wiring member 2 </ b> A by the wire hanger 9.

  And in this embodiment, after assembling a plurality of routing member units 95 in the factory, at the installation site of the trolley system, the plurality of routing member units 95 are connected and installed as shown in FIG. Then, the conductor parts 61 of the feeder 6 are connected by a joiner-8. Specifically, in a pair of wiring member units 95 connected to each other, as shown in FIG. 12, the conductor portions 61 and 61 are connected to the conductor portions 61 and 61 from the side of the pair of conductor portions 61 and 61 whose ends face each other. The connection main body 81 of the joiner 8 is packaged to connect the conductors 61 and 61. Thereafter, the cover 85 is attached to the connection main body 81.

  According to the non-contact type power feeding device 4A of the present embodiment described above, by providing the routing member unit 95, it is possible to reduce the installation effort for the non-contact type power feeding device 4A at the installation site. Further, it is possible to further improve the assemblability of the non-contact type power feeding device 4A.

  The present invention is not limited to this embodiment, and various other embodiments can be adopted without departing from the gist of the present invention. For example, as shown in FIG. 13, the wire hanger has, for example, a holding arm 9a that holds the forward path side wire 6m as one holding arm and a holding arm 9b that holds the return path side wire 6n as the other holding arm. Also, the wire hanger 9A formed long may be used.

  Further, for example, the feeder 6 is not limited to a circular cross section, but may have other cross sectional shapes. Of course, when the feeder 6 is formed in a cross-sectional shape other than a circular cross-section, the shape of the sandwiching portions 82 and 83 of the joiner 8 and the holding portion 91 of the electric wire hanger 9 conforms to the outer shape of the feeder 6. Will be formed.

1 is a schematic configuration diagram showing a trolley system according to a first embodiment of the present invention. The expanded sectional view along the II-II line in FIG. FIG. 3 is an enlarged perspective view showing a connection end portion of the power supply line according to the first embodiment of the present invention. The expansion perspective view which shows the state which connected the electric power feeding line concerning the 1st Embodiment of this invention with the connector. The expansion perspective view which shows the connection main-body part of the connection tool concerning the 1st Embodiment of this invention. The expansion perspective view which shows the state which tries to attach the connection main-body part of a connection tool to the connection end part of the electric power feeding line concerning the 1st Embodiment of this invention. The expansion perspective view which shows the state which attached the connection main-body part of the connection tool to the connection end part of the electric power feeding line concerning the 1st Embodiment of this invention. The expansion perspective view which shows the state which has arrange | positioned the connection main-body part of the connection tool attached to the connection end part of the electric power feeding line concerning the 1st Embodiment of this invention in the normal state. The expansion perspective view which shows a part of non-contact-type electric power feeder concerning the 2nd Embodiment of this invention. The perspective view which shows the wiring member unit of the non-contact-type electric power feeder concerning the 2nd Embodiment of this invention. The perspective view which shows the state which connected the wiring member units concerning the 2nd Embodiment of this invention. The expansion perspective view which shows the state which tries to attach the connection main-body part of a connection tool to the connection end part of the electric power feeding line concerning the 2nd Embodiment of this invention. Sectional drawing which shows the principal part of the non-contact-type electric power feeder concerning another embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Trolley system 2, 2A Arrangement member 3 Mobile body 4, 4A Non-contact-type electric power feeder 6, 6m, 6n Feed line 61 Conductor part 7 Power receiving device 8 Joiner (connector)
81 Connection body 85 Cover 9, 9A Electric wire hanger 92 Projection

Claims (3)

A non-contact type power supply device that is provided in a trolley system including a moving body and supplies electric power to the moving body,
A plurality of feeders through which current flows in the conductor,
A routing member in which the feeder is routed;
An electric wire hanger that is attached to the wiring member and attaches the feeder to the wiring member;
A power receiving device that is connected to the mobile body in a non-contact state with respect to the power supply line, and supplies the mobile body with electric power obtained by electromagnetic induction caused by a current flowing through the power supply line;
A connector for connecting the feeders;
With
The connection tool includes a connection main body portion that is externally attached to the conductor portions from the sides of the pair of conductor portions whose end portions face each other, and a base portion to which the connection main body portion is attached. A non-contact type power feeding device, wherein the connection main body portion is rotatably connected to the conductor portion in a state where the connection main body portion is sheathed on the conductor portion.   The contactless power feeding device according to claim 1, wherein the connection main body portion is externally coupled to the conductor portion by being covered with the pair of conductor portions.   The contactless power supply device according to claim 1, wherein the connection tool includes a cover that covers an outer side of the connection main body portion in a state in which a pair of the conductor portions are connected to each other.

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