KR102445190B1 - wire disconnection detecting system for wireless power track by use of junction box - Google Patents

Abstract

When one or more core wires are disconnected in a cable consisting of a plurality of core wires in an automatic logistics system to be sensed through a junction box, the present invention relates to technology for blocking power supply from an inverter. Since a so-called junction box is provided at a position in which one cable end unit consisting of the plurality of core wires and the other cable end unit consisting of the plurality of core wires are mutually connected in the automatic logistics system, power supplied from the corresponding inverter is blocked by sensing disconnection through the junction box when disconnecting any of the core wires in each cable. According to the present invention, when disconnecting the any of core wires in each cable, a disconnection sensing member rapidly and accurately senses the disconnection.

Description

{wire disconnection detecting system for wireless power track by use of junction box}

The present invention is a technology for blocking power supply from an inverter by detecting a break in one or more core wires in a cable composed of a plurality of core wires in an automatic logistics system through a junction box.

More specifically, in the present invention, a so-called junction box is provided at a position where one cable end composed of a plurality of core wires and the other cable end composed of a plurality of core wires are interconnected in an automatic logistics system. When any one of the core wires is broken, it is a technology that cuts off the power being supplied from the inverter by detecting the break through the junction box.

In general, a long track cable that transmits power wirelessly in an automatic distribution system is installed. Since the number and length of track cables installed at each site of the automatic distribution system are different, each track cable is extended or an extension cable connected to an inverter to each track cable.

At this time, each track cable or extension cable is composed of a plurality of core wires on the inside, and if any one or more of the core wires is cut off, there is a risk of fire due to heat of the cable itself.

In addition, when heat is generated in each track cable of the automatic distribution system, the power supply of the inverter that supplies power to each track cable must be cut off. .

The present invention has been proposed in consideration of the above points, and an object of the present invention is to detect a break in the core wire in each cable through a junction box connecting each track cable or the track cable and the extension cable, and detect the corresponding inverter An object of the present invention is to provide a disconnection detection system of a wireless power track using a junction box that cuts off the power supply from the junction box.

In order to achieve the above object, the present invention provides an inverter 10, a track cable 20 in which a plurality of core wires form a closed circuit based on the inverter and receive power from the inverter, and an extension connecting the inverter and the track cable In an automatic distribution system including a cable 30, a thermal wire 40 disposed sequentially via an inverter, an extension cable, and a track cable, and a junction box 70 connecting the track cable and the extension cable to the track cable As a disconnection detection system of a wireless power track using a junction box capable of detecting disconnection of a first core wire junction member 110 connecting a plurality of core wires (hereinafter, referred to as 'first extended core wires') disposed on the extension cable corresponding to the core wires to conduct electricity with each other; A plurality of core wires positioned at the other end of the track cable adjacent to the extension cable (hereinafter referred to as 'second track core wire') and a plurality of core wires disposed on the extension cable corresponding to the second track core wire (hereinafter referred to as 'second track core wire') a second core wire junction member 120 that connects the extended core wires so that they are energized with each other; Among the one or more core wires selected from the first track core wires (hereinafter referred to as 'the first selection core wire') and the one or more core wires through which current in the opposite direction flows regardless of the extension line of the first selection core wire among the second track core wires, the first The induced current due to the generation of magnetic flux from the current flowing through the first and second selective core wires by tying the same number of selected core wires (hereinafter referred to as 'second selective core wire') together as the selective core wire one or more ring core members 130 to guide the creation; One or more ring core members are individually energized and the induced current induced in the one or more ring core members is individually sensed to determine whether one or more core wires among the core wires corresponding to any one or more of the one or more ring core members are disconnected Disconnection detection member 140 configured to; The disconnection detection member determines whether one or more of the core wires corresponding to any one or more of the one or more ring core members is disconnected from the disconnection detecting member based on the detection signal received from the disconnection detecting member and is electrically connected to the disconnection detecting member. and a junction box monitoring member 210 that cuts off the power supply.

Here, the disconnection detecting member 140 includes a circuit loop member 141 of a closed circuit pattern; a relay coil member 142 connected in series to the circuit loop member; a relay switch member 143 disposed close to the relay coil member and switched on/off depending on whether the relay coil member conducts current; a signal line member 144 that is energized at both ends of the relay switch member and transmits a disconnection detection signal to the outside in response to switching-on of the relay switch member; a first dual diode member 145 connected in series to the circuit loop member; a second dual diode member 146 connected in parallel between the first dual diode member and the relay coil member in the circuit loop member; a resistance member 147 connected in parallel between the second dual diode member and the relay coil member; It is wound around the ring core member, its one end is connected between the individual diodes of the first dual diode member, and its other end is connected between the individual diodes of the second dual diode member, and the induced current induced by the ring core member is the relay coil Conductive member 148 that interfaces to flow to the member; may be provided.

In addition, a dummy member 221 disposed side by side with the heat-sensitive wire in the inner central portion of the extension cable 30; It may be configured to further include a; disconnection detection signal cable member 222 disposed side by side with the dummy member inside the extension cable 30 to interconnect the disconnection detection member and the junction box monitoring member.

In addition, heat sensing for interconnecting the junction box monitoring member with the auxiliary heat-sensitive wire member disposed side by side with the dummy member inside the extension cable 30 to contact the outer surfaces of the first core wire junction member and the second core wire junction member Signal cable member 223; may be configured to further include.

According to a first embodiment of the present invention, one end of a first track heating wire disposed in a track cable corresponding to the first track core wire among the heat-sensitive wires and a first extension cable disposed in an extension cable corresponding to the first extension core wire among the heat-sensitive wires a first heat-sensitive wire junction member 310 connecting one end of the extended heat-sensitive wire to conduct electricity with each other; an auxiliary thermal wire member 410 disposed so as to be in contact with the outer surfaces of the first core wire junction member and the second core wire junction member and reacts to heat generated by the first core wire junction member or the second core wire junction member; a second heat-sensitive wire junction member 320 connecting one end of the second track heat-sensitive wire disposed in the track cable corresponding to the second track core wire among the heat-sensitive wires and one end of the auxiliary heat-sensitive wire member so as to conduct electricity with each other; and a third heat-sensitive wire junction member 330 connecting the other end of the auxiliary heat-sensitive wire member and one end of the second extended heat-sensitive wire disposed in the extension cable corresponding to the second extended core wire among the heat-sensitive wire to conduct electricity with each other; can

According to the second embodiment of the present invention, one end of the first track heating wire disposed in the track cable corresponding to the first track core wire among the heat-sensitive wires and the first part disposed in the extension cable corresponding to the first extension core wire among the heat-sensitive wires A first heat-sensitive wire junction member (310', 310") connecting one end of the extended heat-sensitive wire to conduct electricity with each other; one end of the second track heat-sensitive wire and a second one of the heat-sensitive wire disposed in the track cable corresponding to the second track core wire among the heat-sensitive wire and a fourth thermal wire junction member (340', 340") connecting one end of the second extended thermal wire disposed in the extension cable corresponding to the second extended core wire to conduct electricity with each other; Either one end of the adjacent first track heat-sensitive wire or one end of the second track heat-sensitive wire adjacent to the fourth heat-sensitive wire junction member may be disposed to abut against the outer surfaces of the first core wire junction member and the second core wire junction member have.

The present invention has the advantage of being able to cut off the power supply from the inverter by quickly detecting a disconnection through the junction box when a disconnection occurs in the core wire in each cable by providing the disconnection detecting member and the junction box monitoring member in the inverter. .

In addition, according to the present invention, as the disconnection detecting member includes a circuit loop member, a relay coil member, a relay switch member, a signal line member, a first dual diode member, a second dual diode member, a resistance member, and a conducting wire member, the core wire in each cable When any one of the core wires is broken, the disconnection detecting member shows the advantage that the disconnection can be detected quickly and accurately.

In addition, the present invention has the advantage of being able to quickly detect heat in the junction box by providing the auxiliary heat-sensitive wire member.

In addition, the present invention also has an advantage in that the installation of the junction box for detecting heat can be quickly and accurately performed by including the first and second heat-sensitive wire junction members and the auxiliary heat-sensitive wire member.

In addition, the present invention provides an auxiliary heat-sensitive wire member for detecting heat in a junction box regardless of the work skill of an installer by providing one or more auxiliary heat-sensitive wire members between the second heat-sensitive wire junction member and the third heat-sensitive wire junction member. It also shows the advantage of increasing reliability.

1 is an exemplary diagram schematically illustrating an environment in which a disconnection detection system of a wireless power track using a junction box according to the present invention will be installed;
[FIG. 2] is an exemplary diagram schematically showing a disconnection detection system of a wireless power track using a junction box according to embodiment a of the present invention;
[FIG. 3] is a circuit diagram that is a configuration of a disconnection detection member, which is a configuration of the present invention, and is an exemplary diagram showing a case in which an induced current is not generated in the conducting wire member when there is no disconnection;
[FIG. 4] is a circuit diagram that is a configuration of a disconnection detection member, which is a configuration of the present invention, and is an exemplary diagram showing a case in which an induced current is generated in a conductor member when disconnected;
[FIG. 5] is an exemplary view showing a cross-section of the extension cable on [FIG. 2],
[Fig. 6] is an excerpt of a part of [Fig. 2], and is an exemplary view showing a case where the track core in the track cable operates normally and a case where some of the track core wires are disconnected;
[Fig. 7] is a view showing a plurality of embodiments in which a ring core member, which is a configuration of the present invention, is installed on a track core wire in a track cable;
[Fig. 8] is a view showing another embodiment in which a plurality of ring core members constituting the present invention are installed on a track core in a track cable;
[FIG. 9] is an exemplary diagram schematically showing a disconnection detection system of a wireless power track using a junction box according to embodiment b of the present invention;
[Fig. 10] is an exemplary diagram schematically showing a disconnection detection system of a wireless power track using a junction box according to an embodiment c of the present invention;
[FIG. 11] is an exemplary diagram schematically showing a disconnection detection system of a wireless power track using a junction box according to an embodiment d of the present invention;
[Fig. 12] is an exemplary view showing a cross-section of the extension cable on [Fig. 11],
[Fig. 13] is an exemplary diagram schematically illustrating a system for detecting a disconnection of a wireless power track using a junction box according to an embodiment e of the present invention.

Hereinafter, the present invention will be described in detail with reference to the drawings.

[Fig. 1] is an exemplary diagram schematically illustrating an environment in which a disconnection detection system of a wireless power track using a junction box according to the present invention will be installed, and [Fig. 2] is a junction box using a junction box according to embodiment a of the present invention. It is an exemplary diagram schematically showing a disconnection detection system of a wireless power track, and [Fig. 3] is a circuit diagram of the disconnection detection member, which is a configuration of the present invention. It is an exemplary view, and [Fig. 4] is a circuit diagram which is a configuration of the disconnection detection member, which is a configuration of the present invention, and is an exemplary diagram showing a case in which an induced current is generated in the conductor member when disconnected, and [Fig. 5] is an extension on [Fig. 2] It is an exemplary diagram showing a cross-section of a cable, and [Fig. 6] is an excerpt of a part of [Fig. 2], and it is shown together when the track core in the track cable operates normally and when some of the track core wires are disconnected. It is an exemplary view, and [Fig. 7] is a view showing a plurality of embodiments in which the ring core member of the present invention is installed on the track core wire in the track cable, and [Fig. It is a view showing another embodiment in which the member is installed on the track core in the track cable.

The present invention is a system for detecting disconnection of a wireless power track using a junction box. As shown in FIG. 1, an inverter 10 and a plurality of core wires form a closed circuit based on the inverter 10, and power is supplied from the inverter 10. The supplied track cable 20, the inverter 10 and the extension cable 30 interconnecting the track cable 20, and the inverter 10 and the extension cable 30 and the track cable 20 are sequentially connected It is configured to enable detection of disconnection of the track cable 20 in an automatic distribution system including a thermal wire 40 disposed via and a junction box 70 connecting the track cable 20 and the extension cable 30 to each other. do.

To this end, the disconnection detection system of a wireless power track using a junction box according to the present invention includes a first core wire junction member 110, a second core wire junction member 120, ring core members 130 and 130', and a disconnection detection member. 140 and the junction box monitoring member 210 may be included.

The first core wire junction member 110 is a first track core wire ( 21) and the first extended core wire 31 composed of a plurality of core wires disposed on the extension cable 30 corresponding to the first track core wire 21 are connected to each other to conduct electricity.

Here, since the first core wire junction member 110 is connected to the first track core wire 21 and the first extended core wire 31 through the lug members 111 and 112 as shown in FIG. 2 , resistance increases and fastening There is a burden of overheating due to a defect.

The second core wire junction member 120 is a second track core wire ( 22) and the second extended core wire 32 composed of a plurality of core wires disposed on the extension cable 30 corresponding to the second track core wire 22 are connected to each other so as to conduct electricity.

Here too, since the second core wire junction member 120 is connected to the second track core wire 22 and the second extended core wire 32 through the lug members 121 and 122 as in [FIG. 2], resistance increase and fastening There is a burden of overheating due to a defect.

On the other hand, referring to [Fig. 2] and [Fig. 7], the track cable 20 is the first track core wire 21 and the second core wire junction member 110 and the second core wire junction member 120 based on the first core wire junction member (120). It is necessary to look at the arrangement structure of the track core wire 22 .

For example, among the two lug members 111 provided in the first core wire junction member 110 of FIG. 2 , the first track core wire 21 connected to the lug member 111 positioned above the second core wire junction The second track core wire 22 connected to the lower lug member 121 among the two lug members 121 provided in the member 120 is paired to conduct electricity.

And, among the two lug members 111 provided in the first core wire junction member 110 of FIG. 2 , the first track core wire 21 connected to the lug member 111 positioned below the second core wire junction The second track core wire 22 connected to the upper lug member 121 among the two lug members 121 provided in the member 120 is paired to conduct electricity.

As a result, as in [Fig. 2] and [Fig. 8], one or more ring core members 130 and 130' are provided, so that the first track core wire 21 and the It may be arranged over the two track core wires 22 at the same time.

That is, the ring core members 130 and 130' include a first selected core wire and a second track core wire 22 composed of one or more core wires selected from among the first track core wires 21 as in [FIG. 2] and [FIG. 8]. ), which is arranged in the form of bundling the second selective core wire composed of one or more core wires selected from among them, and generates magnetic flux from the current of the first selective core wire and the second selective core wire through which current flows in opposite directions.

Here, the magnetic flux generated from the ring core members 130 and 130' generates an induced current in the conducting wire (eg, the secondary side) wound around the ring core members 130 and 130'.

At this time, the core wires having the direction of the current flowing through the first track core wire 21 and the direction of the current flowing through the second track core wire 22 opposite to each other are selected and bundled with the corresponding ring core members 130 and 130 ′.

And, referring to [Fig. 1] and [Fig. 2], each of the core wires extending from the first track core wire 21 and the second track core wire 22 is the first core wire junction member 110 and the second core wire junction member. When viewed with reference to (120), it forms a seamless line shape.

For example, one core wire extending from the first track core wire 21 on [FIG. 2] is in the form of a line to the second track core wire 22 on [FIG. 2] along the track cable 20 closed circuit in [FIG. 1] is extended to

As a result, when looking at the core wires surrounded by the ring core member 130 , the core wire on the first track core wire 21 side and the core wire on the second track core wire 22 side are core wires of different lines, and currents in opposite directions are generated from each other. will flow

On the other hand, in [Fig. 2], the first track core wire 21 of the track cable 20 fitted into the ring core member 130 and the second track core wire 22 of the track cable 20 fitted into the ring core member 130 in [Fig. are the same number and because current flows in opposite directions, the magnetic flux generated in the member in the ring core member 130 is formed in the opposite direction as in [FIG. An induced current does not flow in the wire connected to the disconnection detecting member 140 in a state wound around the ring core member 130 as shown in FIG.

The disconnection detection member 140 is electrically connected to one or more ring core members 130 and 130 ′ as shown in FIGS. 2 and 8 , and is induced in one or more ring core members 130 and 130 ′. It is configured to determine whether one or more of the core wires corresponding to any one or more of the one or more ring core members 130 and 130' are disconnected by individually sensing the induced current.

That is, the disconnection detecting member 140 is an induced current generated by magnetic flux induced from the first track core wire 21 fitted inside the ring core member 130 and the ring core member 130 as shown in FIG. 2 . ) to individually sense the induced current generated by the magnetic flux induced from the second track core wire 22 fitted inside the.

By the way, as in [Fig. 2], the number of the first track core wires 21 and the number of the second track core wires 22 respectively fitted inside the ring core member 130 are the same, and the ring core member 130 ), since the current direction of the first track core wire 21 and the current direction of the second track core wire 22 are opposite to each other, the magnetic flux generated in the ring core member 130 will all be canceled.

On the other hand, the disconnection detecting member 140 is configured to detect the disconnection of the core wire in the track cable 20 through the induced current generated from the magnetic flux generated in the ring core members 130 and 130' or the amount of change in the induced current. can

To this end, the disconnection detecting member 140 is a circuit loop member 141, a relay coil member 142, a relay switch member 143, a signal line member 144, and a second circuit loop member 141, as shown in Figs. A first dual diode member 145 , a second dual diode member 146 , a resistance member 147 , and a conductive wire member 148 may be included.

The circuit loop member 141 may have a closed circuit pattern as shown in FIGS. 3 and 4 .

The relay coil member 142 is preferably connected in series to the circuit loop member 141 as in [Fig. 3] and [Fig. 4], and the relay switch member 143 is disposed close to the relay coil member 142, It may be switched off as shown in [FIG. 3] or switched on as shown in [FIG. 4] depending on whether the current of the relay coil member 142 is energized.

And, the signal line member 144 is energized at both ends of the relay switch member 143 as in [FIG. 3] and [FIG. 4] and reacts to the switching-on of the relay switch member 143 as in [FIG. Thus, it may be configured to transmit a disconnection detection signal to the outside.

The first dual diode member 145 is connected in series to the circuit loop member 141 as in [Figs. 3 and 4], and the second dual diode member 146 is [Fig. 3] and [Fig. 4]. It may be connected in parallel between the first dual diode member 145 and the relay coil member 142 in the circuit loop member 141 as shown in FIG.

In addition, the resistance member 147 may be connected in parallel between the second dual diode member 146 and the relay coil member 142 as shown in FIGS. 3 and 4 .

On the other hand, the conducting wire member 148 is wound around the ring core members 130 and 130 ′ as shown in FIGS. 3 and 4 , and one end thereof is connected between individual diodes of the first dual diode member 145 . and the other end thereof is connected between the individual diodes of the second dual diode member 146 so that the induced current induced to the ring core members 130 and 130 ′ flows to the relay coil member 142 .

On the other hand, the same number of the first track core wire 21 and the second track core wire 22 provided in the track cable 20 as in [FIG. 2] and [FIG. 8] are the ring core members 130 and 130' ), when currents in opposite directions flow in the state sandwiched within, all magnetic fluxes formed in the ring core members 130 and 130' are canceled and are connected to the disconnection detecting member 140 on [Fig. 2] and [Fig. 8]. In order to prevent an induced current from being formed in the conducting wire, the ring core members 130 and 130' are preferably configured in a circular or elliptical closed loop shape as shown in FIGS. 2 and 8 .

Here, that no induced current is generated in the wire connecting the ring core members 130 and 130' and the disconnection detecting member 140 in the states of [Figs. 2] and [Fig. 8] is shown in Fig. 6 (a) This means that disconnection does not occur in the first track core wires 21 and the second track core wires 22 fitted in the same number to the ring core members 130 and 130' in the same state.

However, the generation of induced current in the wire connecting the ring core members 130 and 130 ′ and the disconnection detecting member 140 in the states of [Figs. 2] and [Fig. It means that the disconnection occurred in any one of the first track core wires 21 and the second track core wires 22 fitted in the same number of the ring core members 130 and 130' as shown in FIG.

6(b) shows a case in which one of the first track core wires 21 of the track cable 20 inserted into the ring core member 130 is disconnected.

Here, the ring core member 130' may be provided in plurality as shown in [Fig. 8], and the first track core wire 21 and the second track core wire 22 fitted to the ring core member 130' are It is preferable to keep the same number of each.

As described above, referring to [Fig. 1] and [Fig. 2], each of the core wires extending from the first track core wire 21 and the second track core wire 22 is the first core wire junction member 110 and the second core wire When viewed with reference to the core wire junction member 120, it forms a seamless line shape.

For example, one core wire extending from the first track core wire 21 on [FIG. 2] is in the form of a line to the second track core wire 22 on [FIG. 2] along the track cable 20 closed circuit in [FIG. 1] is extended to

As a result, when looking at the core wires surrounded by the ring core member 130 , the core wire on the first track core wire 21 side and the core wire on the second track core wire 22 side are core wires of different lines, and currents in opposite directions are generated from each other. will flow

On the other hand, preferably, the same number of the first track core wires 21 and the second track core wires 22 passing currents in opposite directions to each other as in (a) and [Figure 2] of [Fig. It may be configured to fit into the member 130, but in some cases, the ring core member 130 is the first track core wire 21 or the second track core wire as shown in (b) and (c) of FIG. 7 . (22) may be fitted only.

For example, as in (b) of [Fig. 7], any one of the first track core wire 21 and the second track core wire 22 (eg, the second track core wire) the core wire inserted into the ring core member 130 In the case of selecting only the ring core member 130, there will be an advantage that it is not necessary to distinguish between the core wires inserted into the ring core member 130.

Here, in the case of (b) of [Fig. 7], magnetic flux is generated in the ring core member 130 only when the track cable 20 is not disconnected and in a normal state, so that the disconnection detecting member 140 and the ring core member 130. An induced current is generated in the wire connecting 140 may be configured to sense.

In the case of (c) of [Fig. 7], as in (b) of [Fig. 7], any one of the first track core wire 21 or the second track core wire 22 is the core wire inserted into the ring core member 130. If only one side (eg, the second track core wire) is selected, there will be an advantage in that it is not necessary to distinguish the core wire inserted into the ring core member 130 .

However, in the case of (c) of [Fig. 7], as in the case of (a) of [Fig. 7], since the current passing through the ring core member 130 is in the opposite direction, the core wires of the track cable 20 are not disconnected. In a normal state, no current is induced in the conductor (eg, the secondary side) connecting the ring core member 130 and the disconnection detecting member 140, and if any one of the core cables of the track cable 20 is disconnected, the secondary conductor The current will be induced and the disconnection detecting member 140 may be configured to detect such a change in the induced current.

In addition, the junction box monitoring member 210 may be electrically connected to the disconnection detecting member 140 as shown in FIGS. 1 and 2 .

The junction box monitoring member 210 is the ring core member 130 on the basis of the detection signal received from the disconnection detection member 140 in a state in which the disconnection detection member 140 is electrically connected, for example, the generation of induced current as in [Fig. 4]. , 130'), it is determined that at least one of the core wires passing through the inside is disconnected.

And, the junction box monitoring member 210 determines that at least one of the core wires passing inside the ring core members 130 and 130' is disconnected from the inverter 10 that supplies power to the corresponding track cable 20. Control to stop the power supply operation.

On the other hand, the present invention may further include a dummy member 221 , a disconnection detection signal cable member 222 , and a heat detection signal cable member 223 .

The dummy member 221 is arranged side by side with the thermal wire 40 in the inner central portion of the extension cable 30 as in [Fig. 5] and [Fig. 12], and the disconnection detection signal cable member 222 is [Fig. 5] and [Fig. 12], it is arranged side by side with the dummy member 221 on the inside of the extension cable 30 to conduct the disconnection detection member 140 and the junction box monitoring member 210 mutually.

The heat detection signal cable member 223 may be disposed side by side with the dummy member 221 on the inside of the extension cable 30 as shown in FIG. 12 .

The heat-sensing signal cable member 223 is disposed inside the extension cable 30 and is a heat-sensitive wire auxiliary member disposed to abut against the outer surfaces of the first core wire junction member 110 and the second core wire junction member 120 . (410'") and the junction box monitoring member 210 are energized with each other.

On the other hand, in order to detect heat in the automatic distribution system, the schematic configuration of the automatic distribution system is as follows through [Fig. 1] and [Fig. 2].

First, as the track cable 20 is arranged in the form of a track on the balance movement path of the automatic distribution system, power is wirelessly supplied to the cart moving along the track cable 20.

To this end, the track cable 20 is connected to the inverter 10 as shown in [Fig. 1] to receive power from the inverter 10.

And, the track cable 20 is not directly connected to the inverter 10, but is electrically connected to the inverter 10 through the extension cable 30 as in [Fig. 1], and the track cable 20 and the extension cable 30 ), the track cable 20 and the extension cable 30 are interconnected as shown in [FIG. 1] with the junction box according to the present invention disposed between them.

Such a junction box is a so-called terminal block in the process of interconnecting the core wires 21 and 22 of the track cable 20 and the core wires 31 and 32 of the extension cable 30, as in [Fig. 2], the core wire junction member ( 110 and 120) are provided.

And, the core wire junction members 110 and 120 may be provided with a screw fastening method for fixing the respective core wires 21, 22, 31, 32 to the core wire junction members 110 and 120, as shown in [Fig. 2]. A plurality of lug members 111 , 112 , 121 and 122 may be provided.

At this time, as in [Fig. 2], the screw fastening of each core wire 21, 22, 31, 32 is fixed to the core wire junction member 110, 120, or the lug member 111, 112, 121, 122 is compressed. As a result, the resistance value may increase, and there is a risk of fire due to the generation of heat.

The thermal wire 40 may be sequentially disposed via the inverter 10 , the extension cable 30 , and the track cable 20 with reference to FIGS. 1 and 2 .

Preferably, the heat-sensitive wire 40 constitutes a closed circuit in which two core wires are independently coated and arranged side by side. That is, each of the core wires arranged side by side on the heat-sensitive wire has a configuration in which current flows independently of each other normally.

In this way, when current flows independently of each other in each of the core wires provided in the heat-sensitive wire 40 and heat is generated in a portion adjacent to the heat-sensitive wire 40, the coated portion of each core wire melts and as a result, each of the core wires arranged side by side A short circuit occurs in which the core wires stick together.

If the short-circuit characteristic of the heat-sensitive wire 40 is utilized as described above, it can be detected whether heat is generated in the area where the heat-sensitive wire 40 is disposed through the current flowing through the heat-sensitive wire 40 and the amount of change in the resistance value corresponding to the current. have.

Here, since the heat-sensitive wire 40 is arranged for a very long time sequentially via the inverter 10, the extension cable 30, and the track cable 20, when a short occurs in the heat-sensitive wire 40, the heat-sensitive wire ( 40) and it is very important to be able to check where the short circuit occurred in any configuration adjacent to it.

To this end, the first embodiment of the present invention provides a first heat-sensitive wire junction member 310, an auxiliary heat-sensitive wire member 410, and a second heat-sensitive wire junction member 320 as shown in FIGS. 2 and 8. , a third heat-sensitive wire junction member 330 may be further included.

The first heat-sensitive wire junction member 310 has a first track feeling disposed in the track cable 20 corresponding to the first track core wire 21 among the heat-sensitive wires 40 as shown in FIGS. 2 and 8 . A structure in which one end of the heating wire 41 and one end of the first extended thermal wire 51 disposed in the extension cable 30 corresponding to the first extended core wire 31 of the thermal wire 40 are connected to each other so as to conduct electricity with each other. accomplish

The auxiliary heat-sensitive wire member 410 is disposed so as to be in contact with the outer surfaces of the first core wire junction member 110 and the second core wire junction member 120 as in [Fig. 2] and [Fig. 8], and the first core wire junction member (110) or the second core wire junction member (120) responds to heat generation.

To this end, the auxiliary heat-sensitive wire member 410 may constitute a closed circuit in which two core wires are independently coated and arranged side by side. That is, each of the core wires arranged side by side on the auxiliary heat-sensitive wire member 410 normally flows independently of each other.

In this way, when current flows independently of each of the core wires provided in the auxiliary heat-sensitive wire member 410 and heat is generated in a portion adjacent to the auxiliary heat-sensitive wire member 410, the coated portion of each core wire melts as a result. A short-circuit phenomenon occurs in which each core wire arranged side by side sticks to each other.

When the short characteristic of the auxiliary heat-sensitive wire member 410 is utilized as described above, the area in which the auxiliary heat-sensitive wire member 410 is disposed is measured through the current flowing through the auxiliary heat-sensitive wire member 410 and the amount of change in the resistance value corresponding to the current. The presence of fever may be detected.

As such, as the auxiliary heat-sensitive wire member 410 is disposed to contact the outer surfaces of the first core wire junction member 110 and the second core wire junction member 120 as shown in FIGS. 2 and 8 , the first When heat is generated in the core wire junction member 110 and the second core wire junction member 120, as the auxiliary thermal wire member 410 is shorted, the external heat sensing control member (not shown) is connected to the first core wire junction member 110 ) or the second core wire junction member 120 can be seen that heat is generated.

The second heat-sensitive wire junction member 320 has a second track feeling disposed in the track cable 20 corresponding to the second track core wire 22 of the heat-sensitive wire 40 as shown in [Fig. 2] and [Fig. 8]. One end of the heating wire 42 and one end of the auxiliary heat-sensitive wire member 410 are connected to each other to conduct electricity.

The third heat-sensitive wire junction member 330 extends to correspond to the other end of the auxiliary heat-sensitive wire member 410 and the second extended core wire 32 of the heat-sensitive wire 40 as shown in FIGS. 2 and 8 . One end of the second extended heat-sensitive wire 52 disposed in the cable 30 is connected to conduct electricity with each other.

[Fig. 9] is an exemplary diagram schematically illustrating a system for detecting disconnection of a wireless power track using a junction box according to embodiment b of the present invention, and [Fig. 10] is an exemplary diagram using a junction box according to embodiment c of the present invention. It is an exemplary diagram schematically showing a disconnection detection system of a wireless power track.

The second embodiment of the present invention further includes first heat-sensitive wire junction members 310' and 310" and fourth heat-sensitive wire junction members 340' and 340" as shown in [Fig. 9] and [Fig. 10]. can be configured.

The first heat-sensitive wire junction members 310' and 310" are disposed in the track cable 20 corresponding to the first track core wire 21 of the heat-sensitive wire 40 as shown in FIGS. 9 and 10. So that one end of the first track thermal wire 41 and one end of the first extended thermal wire 51 disposed in the extension cable 30 corresponding to the first extended core wire 31 of the thermal wire 40 conduct electricity with each other form a connected structure.

The fourth heat-sensitive wire junction members 340' and 340" are disposed in the track cable 20 corresponding to the second track core wire 22 of the heat-sensitive wire 40 as shown in FIGS. 9 and 10. so that one end of the second track thermal wire 42 and one end of the second extended thermal wire 52 disposed in the extension cable 30 corresponding to the second extended core wire 32 of the thermal wire 40 are electrically connected to each other form a connected structure.

Here, as in [Fig. 9], the second track thermal wire 42 corresponding to the side of the first and second track core wires 21 and 22 with respect to the fourth thermal wire junction member 340' is the first core wire junction. As the member 110 and the second core wire junction member 120 are disposed to contact the outer surfaces, the auxiliary heat-sensitive wire member 410 ′ may be formed.

And, as in [Fig. 10], the second extended thermal wire 52 corresponding to the side of the first and second extended core wires 31 and 32 with respect to the fourth thermal wire junction member 340" is the first core wire junction. As the member 110 and the second core wire junction member 120 are disposed to contact the outer surfaces, the auxiliary heat-sensitive wire member 410 ″ may be formed.

[FIG. 11] is an exemplary diagram schematically showing a disconnection detection system of a wireless power track using a junction box according to an embodiment d of the present invention, and [FIG. 12] shows a cross-section of the extension cable on [FIG. 11] It is one example.

Referring to FIG. 11 , the auxiliary heat-sensitive wire member 410 ′″ is a separate component insulated from the heat-sensitive wire 40 , and the outer surfaces of the first core wire junction member 110 and the second core wire junction member 120 . It may be arranged so as to be in contact with.

In this case, as shown in [Fig. 11], the auxiliary thermal wire member 410'" is a junction box monitoring member 210 provided in the inverter 10 through the heat detection signal cable member 223 via the extension cable 30. ) and can be energized.

On the other hand, referring to [Fig. 12], the extension cable 30 has first and second extension core wires as conducting wires through which current flows along the periphery of the dummy member 221 with the dummy member 221 disposed in the central portion thereof. A plurality of (31, 32) may be arranged in a twisted structure, respectively.

In addition, the extension cable 30 may include a heat-sensitive wire 40 insulated from the first and second extension core wires 31 and 32 as shown in FIG. 12 .

In addition, the extension cable 30 includes the disconnection detection signal cable member 222 and the heat detection signal cable insulated from the first and second extension core wires 31 and 32 and the thermal wire 40 as in [Fig. 12]. A member 223 is provided, and preferably, the outermost portion may be coated for insulation from the outside as shown in FIG. 12 .

Here, the disconnection detection signal cable member 222 and the heat detection signal cable member 223 are also covered to maintain an insulated state from the surrounding configuration.

[Fig. 13] is an exemplary diagram schematically illustrating a system for detecting a disconnection of a wireless power track using a junction box according to an embodiment e of the present invention.

The ring core member 130 ″ according to the present invention includes a first core wire junction member 110 ′ of any one of a plurality of first core wire junction members 110 ′ disposed as shown in FIG. 13 and [FIG. 13] The first core wire junction member 110' is disposed to surround the second core wire junction member 120' of the plurality of second core wire junction members 120' arranged as shown in Fig. ) and the second core wire junction member 120' are preferably paired to pass through them.

Here too, as described above, referring to [Fig. 1] and [Fig. 2], each of the core wires extending from the first track core wire 21 and the second track core wire 22 is the first core wire junction member 110' and When viewed with reference to the second core wire junction member 120', it forms a seamless line shape.

For example, one core wire extending from the first track core wire 21 on [FIG. 2] is in the form of a line to the second track core wire 22 on [FIG. 2] along the track cable 20 closed circuit in [FIG. 1] is extended to

As a result, when looking at the core wire junction members 110' and 120' surrounded by the ring core member 130" as a reference, the first core wire junction member 110' and the second track on the side of the first track core wire 21 The second core wire junction member 120 ′ on the core wire 22 side is a core wire junction member connected to different lines, and currents in opposite directions flow.

Meanwhile, a plurality of auxiliary heat-sensitive wire members 410 in FIGS. 2 and 8 may be formed as in FIG. 13 .

10: inverter
20: track cable
21: first track core wire
22: second track core wire
30: extension cable
31: first extended core wire
32: second extended core wire
40: thermal wire
70: junction box
110: first core wire junction member
111, 112: lead member
120: second core wire junction member
121, 122: lead member
130, 130', 130": ring core member
140: disconnection detection member
141: circuit loop member
142: relay coil member
143: relay switch member
144: no signal line
145: first dual diode member
146: second dual diode member
147: absence of resistance
148: no conductor
210: junction box monitoring absence
221: dummy member
222: disconnection detection signal cable absence
223: Heat detection signal cable absence
310: first heat-sensitive wire junction member
320: second heat-sensitive wire junction member
330: third heat-sensitive wire junction member
310', 310": first heat-sensitive wire junction member
340', 340": 4th thermal wire junction member
410, 410', 410": Auxiliary heating wire member
410'" : Auxiliary member for heat-sensitive wire

Claims (6)

An inverter 10, a track cable 20 in which a plurality of core wires form a closed circuit based on the inverter and receive power from the inverter, and an extension cable 30 interconnecting the inverter and the track cable; In an automatic distribution system including a heat-sensitive wire (40) disposed sequentially via the inverter, the extension cable, and the track cable, and a junction box (70) connecting the track cable and the extension cable to the track cable As a disconnection detection system of a wireless power track using a junction box capable of detecting a disconnection of
A plurality of core wires disposed inside the junction box 70 and positioned at one end 20-1 of the track cable 20 adjacent to the extension cable 30 (hereinafter, 'first track core wire 21') a first core wire junction member connecting the plurality of core wires (hereinafter, referred to as 'first extended core wire 31') of the extension cable 30 corresponding to the first track core wire 21 so as to conduct electricity with each other (110);
A plurality of core wires disposed inside the junction box 70 and positioned at the other end 20-2 of the track cable 20 adjacent to the extension cable 30 (hereinafter, 'second track core wire 22') a second core wire junction member connecting the plurality of core wires of the extension cable 30 corresponding to the second track core wire 22 (hereinafter referred to as 'second extended core wire 32') to conduct electricity with each other (120);
As a ring core member 130 having a single closed loop shape disposed inside the junction box 70, the first track core wire 21 and the first track core wire 21 and the first track core wire 21 and the first N core wires each having the same number of currents flowing in opposite directions Selecting each of the two track core wires 22 (hereinafter referred to as 'first selective core wire' and 'second selective core wire', respectively), the 2N core wire in which the first selective core wire and the second selective core wire are gathered a ring core member 130 configured to pass in common to the inside of a single closed loop shape to guide generation of an induced current by generating magnetic flux by the current flowing in the first and second selective core wires;
It is disposed inside the junction box 70 and is electrically connected to the conductive wire 148 wound around the ring core member 130 to sense the induced current generated in the conductive wire 148 by the ring core member 130 . a disconnection detecting member 140 for determining whether a disconnection occurs with respect to the first selected core wire and the second selected core wire passing in common to the ring core member 130;
Disconnection of a core wire disposed outside the junction box 70 , electrically connected to the disconnection detecting member 140 , and passing through the ring core member 130 based on a detection signal received from the disconnection detecting member 140 . a junction box monitoring member 210 for determining whether or not to cut off the power supply of the inverter 10;
Disconnection detection system of a wireless power track using a junction box comprising a.
The method according to claim 1,
The disconnection detecting member 140,
a circuit loop member 141 of a closed circuit pattern;
a relay coil member 142 connected in series to the circuit loop member;
a relay switch member 143 disposed close to the relay coil member and switched on/off depending on whether the relay coil member conducts current;
a signal line member 144 that is energized at both ends of the relay switch member and transmits a disconnection detection signal to the outside in response to switching-on of the relay switch member;
a first dual diode member 145 connected in series to the circuit loop member;
a second dual diode member 146 connected in parallel between the first dual diode member and the relay coil member in the circuit loop member;
a resistance member 147 connected in parallel between the second dual diode member and the relay coil member;
Induction wound around the ring core member, one end of which is connected between the individual diodes of the first dual diode member, and the other end thereof is connected between the individual diodes of the second dual diode member, and leads to the ring core member a conducting wire member (148) for interfacing an electric current to flow through the relay coil member;
Disconnection detection system of a wireless power track using a junction box, characterized in that it comprises a.
3. The method according to claim 2,
a dummy member 221 disposed in parallel with the heat-sensitive wire at an inner central portion of the extension cable 30;
a disconnection detection signal cable member 222 disposed side by side with the dummy member inside the extension cable 30 to interconnect the disconnection detecting member and the junction box monitoring member;
Disconnection detection system of the wireless power track, characterized in that it further comprises a.
4. The method of claim 3,
The junction box monitoring member is interconnected with a heat-sensitive wire auxiliary member disposed inside the extension cable (30) side by side with the dummy member and in contact with outer surfaces of the first core wire junction member and the second core wire junction member a heat detection signal cable member 223;
Disconnection detection system of a wireless power track using a junction box, characterized in that it further comprises a.
5. The method according to claim 4,
One end of a first track heating wire disposed in the track cable corresponding to the first track core among the heat-sensitive wires and one end of the first extended heat-sensitive wire disposed in the extension cable corresponding to the first extended core among the heat-sensitive wires a first heat-sensitive wire junction member 310 connecting the parts to conduct electricity with each other;
an auxiliary thermal wire member (410) disposed so as to be in contact with outer surfaces of the first core wire junction member and the second core wire junction member and reacting to heat generated by the first core wire junction member or the second core wire junction member;
a second heat-sensitive wire junction member (320) connecting one end of a second track heat-sensitive wire disposed in the track cable corresponding to the second track core wire among the heat-sensitive wires and one end of the auxiliary heat-sensitive wire member to conduct electricity with each other;
a third heat-sensitive wire junction member (330) connecting the other end of the auxiliary heat-sensitive wire member to one end of the second extended heat-sensitive wire disposed in the extension cable corresponding to the second extended core wire among the heat-sensitive wires so that they are energized;
Disconnection detection system of a wireless power track using a junction box, characterized in that it further comprises a.
5. The method according to claim 4,
One end of a first track heating wire disposed in the track cable corresponding to the first track core among the heat-sensitive wires and one end of the first extended heat-sensitive wire disposed in the extension cable corresponding to the first extended core among the heat-sensitive wires first heat-sensitive wire junction members 310' and 310" that connect the parts to conduct electricity with each other;
One end of a second track heating wire disposed in the track cable corresponding to the second track core among the heat-sensitive wires and one end of a second extended heat-sensitive wire disposed in the extension cable corresponding to the second extended core among the heat-sensitive wires a fourth heat-sensitive wire junction member (340', 340") connecting the parts to conduct electricity with each other;
Consists of further comprising,
Either one of the one end of the first track thermal wire adjacent to the first thermal wire junction member or the one end of the second track thermal wire adjacent to the fourth thermal wire junction member is connected to the first core wire junction member and the first thermal wire junction member. Disconnection detection system of a wireless power track using a junction box, characterized in that it is disposed so as to abut against the outer surface of the two-core junction member.

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