Power supply / reception socket and power supply / reception device

Abstract

To provide a power supply / reception socket capable of reliably connecting a connection line extending from a power supply / reception body to a bus cable, and preventing damage at a connection part without applying a load to the connection line even when the bus cable is bent.SOLUTION: A power supply / reception socket 2 includes a socket body 3 having a portion of a bus cable 5 embedded through the side surface, and a current-carrying member 4 having a first current-carrying portion 41 disposed within the socket body 3 and electrically connected to the bus cable 5, and a planar second current-carrying portion 42 electrically connected to the first current-carrying portion 41 and exposed toward the opening of the socket body 3 so as to come into contact with a power supply / reception member 11 provided at the end of a power supply / reception unit 6.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a power supply / reception socket and a power supply / reception device for electrically connecting a power supply / reception member provided in a power supply / reception unit to a bus cable. [Background technology]

[0002] Conventionally, as a power supply / reception unit, there is a solar cell unit that converts light energy into electrical energy and supplies it. For example, a solar cell unit has a configuration in which a solar cell is sandwiched between two plates, one of which is transparent, and a connection wire connected to the solar cell is led out from between the plates to the outside (see, for example, Patent Document 1).

[0003] In a photovoltaic power generation device equipped with such a solar cell unit, the connection wires of the solar cell are generally electrically connected to an external device such as a storage battery constituting the photovoltaic power generation device via a bus cable. Note that the bus cable is also used to connect a plurality of solar cell units together, and there are various connection forms between the connection wires and the bus cable. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 3371205 Summary of the Invention [Problem to be solved by the invention]

[0005] In recent years, photovoltaic power generation devices are used in various situations, and in addition to the conventional use of solar cell units fixed to a roof, there are also situations in which the photovoltaic power generation device is carried to the usage location and used, or multiple solar cell units connected by a bus cable are bent at the bus cable to fit the shape of the installation location. Therefore, there are cases in which the bus cable is bent during transportation or installed in a bent state at the installation location, which places a load on the connection wire connected to the bus cable.

[0006] Therefore, an object of the present invention is to provide a power supply / reception socket and a power supply / reception device that can reliably connect a connection line extending from a power supply / reception body such as a solar cell to a bus cable, and that can prevent damage at the connection point without placing a load on the connection line even if the bus cable is bent. [Means for solving the problem]

[0007] In order to solve the above problems, one aspect of the power supply / receiving socket of the present invention is a power supply / receiving socket attached to the end of a power supply / receiving unit, and includes a socket body having a portion of a bus cable embedded through a side surface, and a current-carrying member having a first current-carrying portion disposed inside the socket body and electrically connected to the bus cable, and a second current-carrying portion electrically connected to the first current-carrying portion and exposed toward an opening of the socket body so as to come into contact with a power supply / receiving member provided at the end of the power supply / receiving unit.

[0008] According to this configuration, the power supply / receiving member of the power supply / receiving unit and the bus cable embedded in the socket body can be electrically connected via the current-carrying member, and the power supply / receiving member on the power supply / receiving unit side can be electrically connected by contacting it with the second current-carrying part on the socket side. This ensures a reliable connection between the power supply / receiving member and the bus cable, and prevents a load caused by deformation of the bus cable from being directly transmitted to the power supply / receiving member.

[0009] Here, the power supply / receiving unit may be, for example, one composed of a power supplying body that converts the energy of received light, such as a solar cell, into electrical energy, or one composed of a power receiving body that performs some operation upon receiving power, such as an LED (Light Emitting Diode) that receives electrical energy and emits light.

[0010] The bus cable is a cable that is electrically connected to a connection line that is electrically connected to an electrode of a power supply or a power receiver via a current-carrying member and a power supply / receiving member, and has a role of transmitting electrical energy from the power supply to an external device to be powered, such as a storage battery, and transmitting electrical energy from a power source to the power receiver. The bus cable also has a role of connecting power supply / receiving units together and connecting power supply / receiving modules each having a configuration in which a plurality of power supply / receiving units are connected together. Furthermore, in the above-described power supply / reception socket, the socket body may have a cylindrical inner circumferential surface and may be provided with a helical groove formed in a spiral shape along the circumferential direction on at least the opening side of the inner circumferential surface.

[0011] According to this configuration, an adhesive resin material such as an adhesive is applied along the spiral groove inside the socket body, and the power supply / receiving socket in this state is attached to the cylindrical end of the power supply / receiving unit and the power supply / receiving unit is rotated in one direction, so that the resin material can be applied to most of the portion of the end that faces the spiral groove. This makes it possible to easily attach the power supply / receiving socket to the end of the power supply / receiving unit in a desired orientation. On the other hand, when it is desired to remove the power supply / receiving unit from the power supply / receiving socket, the power supply / receiving unit can be rotated in the opposite direction to that used for adhesion, so that the resin material that has solidified due to shear force can be easily crushed and removed. Furthermore, the above-mentioned power supply / reception socket may further include an air hole provided on a side surface of the socket body at a position that does not interfere with the spiral groove.

[0012] According to this configuration, when the power supply / receiving socket is attached to the end of the power supply / receiving unit without any gaps, the air inside can be discharged to the outside through the air hole, reducing air resistance that occurs during attachment. This makes it possible to easily attach the power supply / receiving socket to the power supply / receiving unit. In addition, because the air hole is located at a position that does not interfere with the spiral groove, it is possible to prevent the air hole from being clogged with the resin member when the power supply / receiving socket is once fixed to the power supply / receiving unit and then removed from the power supply / receiving unit. The above-mentioned power supply / reception socket may further include a rib provided on an inner side surface of the socket body for guiding the power supply / reception member to the second electric current conducting portion. According to this configuration, the guide rib can reliably guide the power supply / reception member of the power supply / reception unit to the second electric current portion of the power supply / reception socket. Furthermore, in the above-mentioned power supply / receiving socket, the ribs may be arranged at a predetermined interval along the inner circumferential direction and may be configured to gradually increase in width from the opening side toward the bottom surface portion so as to grip the second current-carrying portion at the bottom surface portion.

[0013] This configuration makes it easy to insert the power supply / receiving member into the socket, and allows the current-carrying member to be guided to a desired position when it is attached to the inside from the opening side. Also, since the second current-carrying part can be held by multiple ribs on the bottom surface, it is possible to reduce the occurrence of the second current-carrying part being displaced or falling off during assembly. In the above-mentioned power supply / reception socket, the socket body is made of a flexible material. According to this configuration, if the power supply / reception unit to which the power supply / reception socket is attached is dropped, the power supply / reception socket can absorb the impact caused by the drop.

[0014] In addition, the above-mentioned power supply / receiving socket may be provided with a tubular connecting member that communicates with a through hole of the bus cable and connects the power supply / receiving socket to another power supply / receiving socket, and the socket body may be provided with a buffer portion protruding in a direction perpendicular to the connecting member.

[0015] According to this configuration, the power supply / reception socket can be connected to other power supply / reception sockets via the connection member. In addition, when multiple power supply / reception units connected via the connection member are dropped on the ground, the protruding buffer part of each power supply / reception socket hits the ground first, so that the power supply / reception units can be prevented from hitting the ground or made less likely to hit the ground. In addition, the connection member can protect the bus cable. Furthermore, in the above-mentioned power supply / reception socket, the connection member may be made of a flexible member. According to this configuration, a plurality of power supply / reception units connected via the power supply / reception socket can be easily bent at the connection member.

[0016] On the other hand, one aspect of the power supply / receiving device according to the present invention is a power supply / receiving device comprising a power supply / receiving unit and a power supply / receiving socket attached to an end of the power supply / receiving unit, wherein the power supply / receiving socket may comprise a socket body having a portion of a bus cable embedded through a side surface, a first current-carrying portion disposed inside the socket body and electrically connected to the bus cable, and a second current-carrying portion electrically connected to the first current-carrying portion and exposed toward an opening of the socket body, the second current-carrying portion being in contact with a power supply / receiving member provided at the end of the power supply / receiving unit. The power supply / receiving unit may include a cylindrical body, a power supply / receiving body arranged inside the cylindrical body, leads electrically connected to current-carrying connection wires provided at one end and the other end of the power supply / receiving body and protruding outward from one end and the other end of the cylindrical body, and a power supply / receiving member made of a conductive material, one end of which contacts the protruding tip of the lead and the other end of which contacts the second current-carrying portion, and the power supply / receiving member may be configured so that the contact area of ​​the other end is larger than the contact area of ​​the one end.

[0017] According to this configuration, the power supply / receiving member of the power supply / receiving unit and the bus cable embedded in the socket body can be electrically connected via the current-carrying member, and the power supply / receiving member on the power supply / receiving unit side can be electrically connected by contacting the second current-carrying part on the socket side. In addition, since the power supply / receiving member of the power supply / receiving unit is configured so that the contact area of ​​one end is larger than the contact area of ​​the other end, the power supply / receiving member can be reliably contacted with the second current-carrying part. This ensures that the power supply / receiving member and the bus cable are reliably connected, and prevents the load caused by the deformation of the bus cable from being directly transmitted to the power supply / receiving member. Here, the power supply / receiving body includes, for example, a power supplying body that converts the energy of received light into electrical energy, such as a solar cell, and a power receiving body that receives electrical energy and emits light, such as an LED (Light Emitting Diode). Furthermore, in the above power supply / reception device, the power supply / reception member may be made of an elastic member.

[0018] According to this configuration, the contact portion of the power supply / receiving member can be biased in the direction of contact with the second current conducting portion, thereby making it possible to more reliably establish electrical continuity between the power supply / receiving member and the second current conducting portion and also making it easier to maintain the conductive state even when subjected to external impact, etc. Effect of the Invention

[0019] According to the present invention, the power supply / reception member and the bus cable can be securely connected, and a load caused by deformation of the bus cable can be prevented from being directly transmitted to the power supply / reception member. [Brief description of the drawings]

[0020] [Figure 1] FIG. 1 is a schematic diagram showing a configuration example of a power supply and receiving system including a power supply and receiving device 1 according to a first embodiment. [Diagram 2] 1 is a front view showing a portion of a power supply / reception socket 2 and a power supply / reception unit 6 according to a first embodiment. [Diagram 3] 1 is a front view showing a part of a power supply / reception device 1 in a state in which a power supply / reception socket 2 according to a first embodiment is attached to an end of a power supply / reception unit 6. FIG. [Figure 4A] FIG. 2 is a plan view of the power supply / reception socket 2. [Figure 4B] FIG. 2 is a front view of the power supply / reception socket 2. [Figure 4C] FIG. 2 is a side view of the power supply / reception socket 2. [Figure 4D] FIG. 2 is a bottom view of the power supply / reception socket 2. [Figure 4E] 4B is a cross-sectional view taken along line AA in Fig. 4A, in which the bus cable 5 and the current-carrying member 4 are omitted. [Figure 5A] 2 is a schematic diagram showing a first connection configuration between a current-carrying member 4 and a bus cable 5. FIG. [Figure 5B] 13 is a schematic diagram showing a second connection configuration between a current-carrying member 4 and a bus cable 5. FIG. [Figure 6] 10A to 10C are diagrams for explaining an example of an assembly process for the power supply / receiving unit 6. [Figure 7] 2A to 2C are diagrams for explaining an example of an assembly process for the power supply and reception device 1. FIG. [Figure 8] 2 is a schematic diagram showing a power supply and reception module group 101 according to a first application example of the power supply and reception device 1. FIG. [Figure 9A] 13 is a schematic diagram showing a foldable power supply / reception module group 102 according to a second application example of the power supply / reception device 1. FIG. [Figure 9B] 13 is a diagram showing a state in which the foldable power supply / reception module group 102 is folded. FIG. [Figure 9C] 1 is a diagram showing a configuration of a fixed power supply / reception module 103 that constitutes a foldable power supply / reception module group 102. FIG. [Figure 10A] 13 is a schematic diagram showing a portable power supply / reception module 105 according to a third application example of the power supply / reception device 1. FIG. [Figure 10B] 1 is a schematic diagram showing a portable power supply / reception module 105 in an unfolded state. FIG. [Figure 11] FIG. 11 is a diagram showing a part of a power supply / reception module 100A including a power supply / reception device 1A according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] First Embodiment 〔composition〕 A first embodiment of the present invention will be described below with reference to the drawings. Figures 1 to 7 are diagrams showing the first embodiment. [Configuration of power supply / receiving system] First, the configuration of a power supply and reception system according to a first embodiment will be described. FIG. 1 is a schematic diagram showing a configuration example of a power supply and receiving system including a power supply and receiving device 1 according to a first embodiment. As shown in FIG. 1, the power supply and reception system includes a power supply and reception module 100 and an external device 200. The power supply and reception module 100 has a configuration in which a plurality of power supply and reception devices 1 according to the first embodiment are connected in a ladder shape via power supply and reception sockets 2 and bus cables 5A and 5B. Hereinafter, the bus cables 5A and 5B will be simply referred to as "bus cables 5" when there is no need to distinguish between them. The power supply / reception device 1 includes a power supply / reception socket 2 and a power supply / reception body 8.

[0022] Depending on the characteristics of the power supply receiver 8 constituting the power supply / reception device 1, when the power supply receiver 8 has characteristics as a power supply unit such as a solar cell, the external device 200 is a device equipped with a target for supplying generated energy such as a storage battery. On the other hand, when the power supply receiver 8 has characteristics as a power receiver that operates by receiving electric energy such as an LED, the external device 200 is a device equipped with a power source such as a battery. In the first embodiment, the configuration of a power supply / reception system in which the power supply / reception unit 8 is a solar cell will be described below. In this case, the power supply / reception device 1 is a solar cell device, and the power supply / reception module 100 is a solar cell module made up of a plurality of solar cell devices. In addition, the external device 200 is a device that constitutes a solar power generation system together with the power supply / reception module 100.

[0023] The power supply / reception module 100 supplies electric energy generated by receiving light such as sunlight to the external device 200 via the bus cable 5. A male connector 110 and a female connector 120 are attached to one ends of the bus cables 5A and 5B, respectively, and a female connector 120 and a male connector 110 are attached to the other ends, respectively. In the example shown in Fig. 1, one ends of extension bus cables 5C and 5D are connected via the male connector 110 of the bus cable 5A and the female connector 120 of the bus cable 5B, respectively.

[0024] The external device 200 includes a storage battery 210, for example, a lithium ion battery, a lead storage battery, a nickel metal hydride battery, etc., a charging control unit 220 that controls the charging operation of the storage battery 210, and a power receiving connector 230 for receiving electrical energy from the power supply and receiving module 100. The extension bus cables 5A and 5B are connected to the power receiving connector 230 via connectors (not shown) attached to the other ends of the respective cables. The external device 200 charges the storage battery 210 with the generated energy received from the solar cell module 100 via the power receiving connector 230. At that time, the charging operation of the storage battery 210 is controlled by a charging control unit 220.

[0025] 1, the power supply / receiving system is configured with a power supply / receiving module 100 including a plurality of power supply / receiving devices 1, but is not limited to this configuration. For example, the system may be configured with one power supply / receiving device 1, or the number of power supply / receiving devices 1 constituting the power supply / receiving module 100 may be different. [Configuration of power supply / reception device 1] Next, a detailed configuration of the power supply / reception device 1 according to the first embodiment will be described.

[0026] Fig. 2 is a front view showing a part of the power supply / reception socket 2 and the power supply / reception unit 6 according to the first embodiment, and Fig. 3 is a front view showing a part of the power supply / reception device 1 in a state in which the power supply / reception socket 2 according to the first embodiment is attached to an end of the power supply / reception unit 6. Figs. 4A, 4B, 4C, and 4D are a plan view, a front view (common to the rear view), a side view (common to the left and right), and a bottom view of the power supply / reception socket 2 according to the first embodiment. Fig. 4E is a cross-sectional view taken along line AA in Fig. 4A. In this figure, the bus cable 5 and the current-carrying member 4 are omitted. As shown in FIGS. 1, 2 and 3, the power supply / reception device 1 includes two power supply / reception sockets 2 and a power supply / reception unit 6. The power supply / reception device 1 includes two power supply / reception sockets 2 and a power supply / reception unit 6. Each power supply / reception socket 2 includes a socket body 3 , a current-carrying member 4 , and a bus cable 5 . The power supply / reception unit 6 includes a cylindrical body 7 , a power supply / reception body 8 , two stems 9 , two leads 10 , and two power supply / reception members 11 .

[0027] The socket body 3 is made of a flexible material such as rubber and has a generally cylindrical shape with one end closed and the other end open. The socket body 3 includes a cable chamber 30, two arms 31, a buffer section 32, a spiral groove 33, a bulkhead 34, eight ribs 35, and two air holes 36.

[0028] The current-carrying member 4 is made of a metal member and includes a needle-shaped first current-carrying part 41 having one end electrically connected to the bus cable 5, and a disk-shaped second current-carrying part 42 electrically connected to the other end of the first current-carrying part 41. Specifically, the first current-carrying part 41 is provided protruding from the center of one face of the second current-carrying part 42 in a direction perpendicular to the face. The other face of the second current-carrying part 42 is configured to be flat. That is, the current-carrying member 4 is configured in a push-pin shape. The cable chamber 30 is a room that forms a space for burying a portion of the bus cable 5 inside the socket body 3, and is composed of an approximately cylindrical inner wall that penetrates the left and right side surfaces of the closed end of the socket body 3.

[0029] The two arms 31 are generally cylindrical and are provided around the opening of the cable chamber 30 on the left and right outer faces of the socket body 3, protruding outward from the side faces to the left and right, respectively. The inner periphery 31h of each arm 31 is configured to have the same or approximately the same diameter as the opening diameter of the cable chamber 30, and communicates with the cable chamber 30.

[0030] The buffer section 32 is made of, for example, the same material as the socket body 3, and is formed to protrude in a direction perpendicular to the arm section 31 and the portion where the bus cable 5 is embedded on the outer circumferential surface of the socket body 3 as shown in Figures 4A and 4D. That is, the buffer section 32 is formed to protrude on the front and rear sides of the outer circumferential surface of the socket body 3, and has an outline that is a substantially elliptical arc shape in plan and bottom views. Also, the buffer section 32 is hollowed out in a lattice pattern as shown in Figures 4B and 4C.

[0031] 4B and 4C, the buffer section 32 is configured to have an elliptical outer shape and to have a lattice-shaped hollowed-out shape, but this is to suppress an increase in the weight of the device. Therefore, the present invention is not limited to this configuration, and may be configured in other shapes, such as a configuration without hollowing out if there is no weight problem, or a buffer section with a circular outer shape in plan view and bottom view. As shown in Figs. 2, 3 and 4E, the spiral groove 33 is a groove formed spirally along the circumferential direction on the side surface (inner peripheral surface) of the socket body 3 closer to the opening than the buffer section 32. The bulkhead 34 is made of, for example, the same material as the socket body 3, and forms a wall that separates the closed end portion including the cable chamber 30 from other portions inside the socket body 3. The bulkhead 34 also forms the bottom of the other portions on the opening side.

[0032] 4D and 4E, the eight ribs 35 are provided at equal intervals along the circumferential direction and extending in a direction intersecting the radial direction on the inner circumferential surface portion between the spiral groove 33 and the partition wall 34 inside the socket body 3. Each rib 35 is configured so that its width gradually increases radially inward from the opening side toward the partition wall 34.

[0033] Specifically, when the opening side of the socket body 3 is the upper side, the lower ends of the eight ribs 35 are configured to increase in width to an extent that their inner surfaces can grip the second current-carrying portion 42 of the current-carrying member 4. In the first embodiment, each rib 35 is configured to gradually increase in width until it is able to grip, and then extend straight toward the partition wall 34 while maintaining this width. The second current-carrying portion 42 is gripped by the inner surface of the straight extending portion. In the example shown in Figures 4D and 4E, the number of ribs is eight, but it may be seven or less or nine or more. If there is no weight problem, the ribs may be replaced by a configuration in which a truncated conical cylindrical inner wall portion whose diameter gradually decreases toward the partition 34 is formed. As shown in Figures 2, 4B and 4E, the two air holes 36 are formed coaxially on the front and rear sides of the socket body 3, and consist of a through hole drilled in the center of the middle section at the center of the left and right of the upper, middle and lower three-section cutout portion of the buffer section 32.

[0034] The bus cable 5 is composed of a movable cable such as a robot cable having excellent bending resistance and durability, and includes a core wire 51 having a large number of cores (e.g., 20) and a covering portion 52 covering the core wire 51, as shown in Fig. 2 and Fig. 3. The bus cable 5 is arranged in a state in which it penetrates the socket body 3 from one of the left and right arm portions 31 to the other by passing through the cable chamber 30 and the inner peripheral portion 31h of the arm portion 31. In other words, a portion of the bus cable 5 is buried inside the socket body 3.

[0035] In the first embodiment, the socket body 3 is made of a material harder than the bus cable 5. This prevents the bending load from being transmitted to the portion buried in the cable room 30 even if the portion exposed to the outside of the bus cable 5 is bent by the left and right arms 31.

[0036] The gap between the outer circumferential surface of the bus cable 5 and the inner circumferential portion 31h of the arm portion 31 is configured so that water cannot flow from the outside into the cable room 30 through the inner circumferential portion 31h. Specifically, the inner diameter of the inner circumferential portion 31h and the outer diameter of the cable 5 are configured to be substantially the same diameter, or the diameter of the inner circumferential portion 31h is configured to be slightly smaller than the outer diameter of the cable 5, and the flexibility of the arm portion 31 prevents a gap from being formed between the bus cable 5 and the inner circumferential portion 31h. On the other hand, the cylinder 7 of the power supply / reception unit 6 has a cylindrical shape and is made of a transparent material such as transparent glass or a transparent resin material. In the first embodiment, the cylinder 7 is made of glass with sufficient transparency for the solar cell inside to receive light.

[0037] In the first embodiment, the power supply / receiver 8 is, for example, a perovskite solar cell using perovskite crystals. A perovskite solar cell is manufactured by sequentially applying a solution (a mixture of a solvent and a solute) onto a substrate using a printing technique to stack multiple layers, forming a sheet-like body.

[0038] That is, the power supply / receiver 8 is configured by rolling a sheet-like perovskite solar cell into a cylindrical shape and is disposed inside the cylindrical body 7. This allows the range of 0 to 360° to be covered in the circumferential direction, and allows light to be received and power to be generated at any angular position. In other words, the configuration has a high degree of freedom in installation. In addition, a connection wire 81 is provided at each of one end and the other end of the power supply / receiver 8, one end of which is connected to the positive electrode of the power supply / receiver 8 and the other end of which is connected to the negative electrode. The connection wire 81 is configured, for example, from a single-core thin-wire electric cable. The power supply / reception unit 6 is not limited to a perovskite solar cell, and may be formed from other solar cells, such as an amorphous solar cell, a semiconductor polymer solar cell, or the like, as long as it can be deformed or configured into a cylindrical shape.

[0039] The two stems 9 are made of, for example, glass, and are provided at one end and the other end of the cylindrical body 7. Each stem 9 is disk-shaped and provided so as to cover an opening of the cylindrical body 7. A through-hole for attaching the lead 10 is provided in the center of each stem 9, penetrating the center of the disk surface, and a boss for supporting the lead 10 is provided on the outer disk surface so as to protrude and communicate with the through-hole.

[0040] The two leads 10 are cylindrical and made of metal. The two leads 10 are inserted into the through holes of the stem 9 and fixed to the stem 9, and are provided at one end and the other end of the cylindrical body 7 such that one end protrudes outward and the other end protrudes inward along the longitudinal direction. The other end of the lead 10 is connected to the other end of the connection wire 81 by soldering or the like. The lead 10 is cylindrical during manufacturing in order to fill the inside of the cylindrical body 7 with nitrogen gas, but the end of the cylindrical body 7 is closed by crimping or the like after filling with nitrogen gas, and the end of the cylindrical body 7 is sealed.

[0041] In the first embodiment, the two power supply / reception members 11 are each composed of a metallic conical coil spring, and the small diameter end thereof is attached to the other end of the lead 10 on the outside at one end or the other end of the cylindrical body 7. Specifically, the inside diameter of the small diameter end of the power supply / reception member 11 is configured to be the same diameter as or slightly larger than the outside diameter of the lead 10, and the other end of the lead 10 is inserted inside and attached. [Manufacturing process of power supply / reception socket 2] Next, a manufacturing process for the connection structure between the current-carrying member 4 and the bus cable 5 and the power supply / reception socket 2 will be described. FIG. 5A is a schematic diagram showing a first connection configuration between current-carrying member 4 and bus cable 5, and FIG. 5B is a schematic diagram showing a second connection configuration between current-carrying member 4 and bus cable 5. As shown in FIG. As shown in FIG. 5A, the first connection configuration is a configuration in which a portion of the covering portion 52 of the bus cable 5 is peeled off to expose the core wire 51, and the exposed core wire 51 and the first conductive portion 41 of the conductive member 4 are electrically connected by soldering, welding, or the like.

[0042] In the manufacturing process for this configuration, first, the core wire 51 of the bus cable 5 is connected to the first current-carrying portion 41. Then, for example, by injection molding, the socket body 3 having the above configuration is formed so that the connection portion between the core wire 51 and the first current-carrying portion 41 fits inside (the cable chamber 30, the inner peripheral portion 31h of the arm portion 31).

[0043] 1, when connecting multiple power supply / reception devices 1, a part of the covering 52 is peeled off at a predetermined pitch from a common bus cable 5 to expose a core wire 51, and a first current-carrying part 41 of a current-carrying member 4 is connected to each exposed core wire 51. Then, the socket body 3 having the above configuration is formed by, for example, injection molding so that each connection part fits inside. On the other hand, the second connection configuration, as shown in Figure 5B, is a configuration in which the core wire 51 and the first conductive portion 41 are electrically connected by inserting the first conductive portion 41 of the conductive member 4 into the bus cable 5 arranged in the cable room 30 through the partition wall 34.

[0044] In the manufacturing process for this configuration, the socket body 3 having the above configuration is first formed by, for example, injection molding. After that, a part of the bus cable 5 is disposed inside the formed socket body 3, and then the first current-carrying portion 41 of the current-carrying member 4 is thrust into the bus cable 51 through the partition wall 34 to establish an electrical connection. At this time, the ends of the eight ribs 35 on the partition wall 34 side are configured to grip the current-carrying member 4. The socket body 3 is configured in a positional relationship such that the first current-carrying portion 41 is thrust into the bus cable 5 at this gripping position, thereby reliably piercing the position of the core wire 51. That is, the eight ribs 35 also play a role in guiding the current-carrying member 4 to an appropriate position (gripping position).

[0045] 1, when connecting a plurality of power supply / reception devices 1, a common bus cable 5 is passed sequentially from one arm 31 to the other arm 31 of a plurality of socket bodies 3 having the above-mentioned configuration formed, for example, by injection molding. In this way, a part of the bus cable 5 is disposed in the cable chamber 30 of each socket body 3. Thereafter, the pitch between the plurality of socket bodies 3 is adjusted, and the first current-carrying portion 41 of the current-carrying member 4 is inserted through the partition wall 34 into the bus cable 5 disposed in the cable chamber 30 of each socket body 3, thereby electrically connecting the core wire 51 and the first current-carrying portion 41. [Assembly process of power supply / reception unit 6] Next, the assembly process of the power supply / receive unit 6 will be described. FIG. 6 is a diagram for explaining an example of an assembly process for the power supply / receiving unit 6. As shown in FIG. First, a cylindrical body 7, a power supply / reception body 8 (made of a solar cell sheet), a stem 9 with two leads 10, and two power supply / reception members 11 made of conical coil springs are prepared. Although not shown, the stem 9 with the lead 10 has a cylindrical lead 10 attached to the center of the disk-shaped main body of the stem 9 before it is attached to the cylindrical body 7, penetrating the disk surface.

[0046] Next, as shown in Fig. 6(1), the power supply / receiver 8 rolled into a cylindrical shape is placed inside the tube 7. Then, as shown in Fig. 6(2), connection wires 81 extending from one end and the other end of the power supply / receiver 8 are electrically connected to one end of a lead 10 previously attached to a stem 9 by soldering, welding, or the like.

[0047] Subsequently, for example, using a dedicated heat treatment device (not shown), the disk-shaped stem 9 is attached to one end and the other end of the cylindrical body 7 by heat treatment. For example, this heat treatment device is configured to attach the stem 9 by melting the end of the cylindrical body 7 with heat, and is configured to apply heat to the end of the cylindrical body 7 while cooling the other parts. Next, a nitrogen purge machine (not shown) is used to first evacuate air (oxygen, etc.) from inside the cylindrical body 7 through cylindrical leads 10 provided on one end side and the other end side of the cylindrical body 7 to create a vacuum. After that, nitrogen gas is filled into the cylindrical body 7 through the cylindrical leads 10.

[0048] Next, as shown in Fig. 6(3), the small diameter side portion of the power supply / reception member 11 is attached to the other end of each lead 10. In Fig. 6(3), only a part of the lead 10 protruding outside the cylindrical body 7 is shown on the right side to explain deformation due to crimping. Specifically, the other end of the lead 10 is inserted inside the small diameter end of the power supply / receiving member 11. Next, the tip of the lead 10 on one end side and the other end side of the cylindrical body 7 is crimped to form the crimped portion 10k. As shown in the right diagram of FIG. 6(3), the crimped portion 10k becomes wider as it approaches the tip. This seals nitrogen gas inside the cylindrical body 7. In other words, the inside of the cylindrical body 7 is oxygen-free, making it possible to suppress oxidation of the power supply / receiving member 8. With the above, the assembly of the power supply / receiving unit 6 is completed. The width of the tip of the crimping portion 10k is configured to be longer than the diameter of at least the small diameter end of the power supply / receiving member 11. That is, by crimping the tip of the lead 10 after attaching the power supply / receiving member 11, the crimping portion 10k acts as a stopper to prevent the power supply / receiving member 11 from falling off the lead 10. [Assembly process of power supply / reception device 1] Next, the assembly process of the power supply / reception device 1 will be described. FIG. 7 is a diagram for explaining an example of an assembly process for the power supply and reception device 1. As shown in FIG. The assembly process for the power supply / reception device 1 will be described below. First, as shown in FIG. 7(1), the power supply / reception unit 6 and the two power supply / reception sockets 2 are prepared. Next, as shown in the cross-sectional view of the power supply / reception socket 2 in Figure 7 (2), an application device (not shown) such as a dispenser is used to apply, for example, a slow-drying adhesive 500 along the spiral groove 33 on the inner side of the power supply / reception socket 2.

[0049] 7(3), one end of the power supply / receiving unit 6 is inserted into the power supply / receiving socket 2 coated with the adhesive 500, and the power supply / receiving socket 2 is attached to one end of the power supply / receiving unit 6. At this time, the eight ribs 35 on the inside of the power supply / receiving socket 2 serve to guide the power supply / receiving member 11, and the large diameter end of the power supply / receiving member 11 is guided to the flat surface of the second current-carrying portion 42 of the current-carrying member 4. As a result, the large diameter end of the power supply / receiving member 11 is pressed against the flat surface of the second current-carrying portion 42 of the current-carrying member 4, and the power supply / receiving member 11 is in a contracted state. In addition, when attached, the air inside is allowed to escape to the outside through the air hole 36 of the socket body 3.

[0050] Next, with the power supply / receiving socket 2 fixed, the power supply / receiving unit 6 is rotated in one direction (for example, the direction of the arrow in FIG. 7(3)). As a result, the power supply / receiving unit 6 rotates while the large diameter side end of the power supply / receiving member 11 slides on the flat surface of the second current-carrying portion 42. As a result, the adhesive 500 applied to the spiral groove 33 of the power supply / receiving socket 2 is applied to almost the entire portion of one end of the power supply / receiving unit 6 that faces the spiral groove 33.

[0051] Next, although not shown, before the adhesive 500 on one end side of the power supply / receiving unit 6 dries, slow-drying adhesive 500 is similarly applied along the spiral groove 33 on the inside of the other power supply / receiving socket 2, and the other end of the power supply / receiving unit 6 is inserted into this power supply / receiving socket 2. Thereafter, with both power supply / receiving sockets 2 fixed, the power supply / receiving unit 6 is rotated in the same direction, and the adhesive 500 applied to the spiral groove 33 is applied to substantially the entire portion of the other end of the power supply / receiving unit 6 that faces the spiral groove 33. Thereafter, the adhesive 500 at both ends of the power supply / receiving unit 6 is dried using a drying device (not shown) or by natural drying, whereby the power supply / receiving sockets 2 are fixed to both ends of the power supply / receiving unit 6, respectively, and the power supply / receiving device 1 is completed as shown in FIG. 7 (4). [Advantages of the first embodiment]

[0052] In the first embodiment, the power supply / reception socket 2 is configured to include a socket body 3 having a portion of a bus cable 5 embedded through the side surface, and a current-carrying member 4 having a first current-carrying portion 41 disposed within the socket body 3 and electrically connected to the bus cable 5, and a planar second current-carrying portion 42 electrically connected to the first current-carrying portion 41 and exposed toward the opening of the socket body 3 so as to come into contact with a power supply / reception member 11 provided at the end of the power supply / reception unit 6.

[0053] With this configuration, the power supply / receiving member 11 of the power supply / receiving unit 6 and the bus cable 5 embedded in the socket body 3 can be electrically connected via the current-carrying member 4, and the power supply / receiving member 11 on the power supply / receiving unit 6 side can be electrically connected by contacting it with the second current-carrying part 42 on the socket side. This ensures that the power supply / receiving member 11 and the bus cable 5 are connected together, and prevents a load caused by deformation of the bus cable 5 from being directly transmitted to the power supply / receiving member 11. In other words, the load caused by deformation of the bus cable 5 can also be prevented from being directly transmitted to the leads 10 and the connection wires 81. In the first embodiment, the power supply / reception socket 2 is configured to include the helical groove 33 formed helically along the circumferential direction on at least the opening side of the cylindrical inner circumferential surface of the socket body 3.

[0054] With this configuration, adhesive 500 can be applied along the spiral groove 33, and by mounting the power supply / receiving socket 2 in this state to an end of the power supply / receiving unit 6 and rotating the power supply / receiving unit 6 in one direction, adhesive 500 can be applied to most of the portion of the end that faces the spiral groove 33. This makes it possible to easily fix the two power supply / receiving sockets 2 to the end of the power supply / receiving unit 6 in a desired orientation. Furthermore, when it is desired to remove the power supply / receiving unit 6 from the power supply / receiving socket 2, the adhesive 500 that has solidified due to shear force can be easily crushed and removed by rotating the power supply / receiving unit 6 in the opposite direction to that used for bonding (for example, the direction of the arrow in (4) of FIG. 7). In the first embodiment, power supply / reception socket 2 is configured to include air hole 36 provided at a position that does not interfere with spiral groove 33 on the side surface of socket body 3.

[0055] With this configuration, when the power supply / receiving socket 2 is attached to the end of the power supply / receiving unit 6, the air inside can escape to the outside through the air hole 36, reducing air resistance during attachment. In addition, because the air hole 36 is provided at a position that does not interfere with the spiral groove 33, it is possible to prevent the air hole 36 from being clogged with solidified adhesive 500 when the power supply / receiving unit 6 is removed from the power supply / receiving socket 2. In the first embodiment, the power supply / reception socket 2 is configured to include eight ribs 35 provided on the inner side surface of the socket body 3 for guiding the power supply / reception member 11 to the second electric current conducting portion 42.

[0056] With this configuration, the guide rib 35 can reliably guide the power supply / receiving member 11 of the power supply / receiving unit 6 to the second current-carrying part 42 of the power supply / receiving socket 2. As a result, it is possible to prevent the power supply / receiving member 11 from colliding with a part other than the second current-carrying part 42 of the power supply / receiving socket 2 and being damaged, or from failing to contact the desired position and ensuring a good current-carrying state.

[0057] In addition, in the first embodiment, the eight ribs 35 of the power supply / reception socket 2 are arranged at predetermined intervals along the inner circumferential direction of the socket body 2 and gradually increase in width from the opening side toward the bottom portion (partition wall 34) so ​​as to grip the second current-carrying portion 42 at the bottom portion.

[0058] With this configuration, the power supply / receiving member 11 can be easily inserted into the socket body 3, and the second current-carrying part 42 can be gripped at the bottom surface, reducing the possibility of the second current-carrying part 42 being displaced or falling off during assembly. Furthermore, in the case of a configuration in which the current-carrying member 4 is inserted through the partition wall 34 to be electrically connected to the bus cable 5, the rib 35 can guide the current-carrying member 4 to a desired position (gripped position). In the first embodiment, the socket body 3 of the power supply / reception socket 2 is made of a flexible material.

[0059] With this configuration, if the power supply / reception device 1 is dropped to the ground or the like, the power supply / reception socket 2 can absorb the impact caused by the drop, reducing damage to the device. In particular, since the socket body 3 is configured to have an elliptical buffer section 32 that protrudes in a direction perpendicular to the arm section 31, if the power supply / reception device 1 is dropped to the ground or the like, the buffer section 32 is more likely to reach the ground before the power supply / reception unit 6, further reducing damage to the device.

[0060] In addition, in the first embodiment, the power supply / reception device 1 includes the power supply / reception socket 2 configured as described above, a cylindrical body 7, a power supply / reception body 8 arranged inside the cylindrical body 7, leads 10 electrically connected to current-carrying connection wires 81 provided at one end and the other end of the power supply / reception body 8 and protruding outward from one end and the other end of the cylindrical body 7, and a power supply / reception member 11 made of a conductive member, one end of which contacts the protruding tip of the lead 10 and the other end of which contacts the second current-carrying portion 42, and the power supply / reception member 11 is configured to include a power supply / reception unit 6 configured so that the contact area of ​​the other end is larger than the contact area of ​​the one end.

[0061] With this configuration, the power supply / receiving member 11 of the power supply / receiving unit 6 and the bus cable 5 embedded in the socket body 3 can be electrically connected via the current-carrying member 4, and the power supply / receiving member 11 on the power supply / receiving unit 6 side can be brought into contact with the second current-carrying portion 42 on the power supply / receiving socket 2 side for electrical connection. In addition, the power supply / receiving member 11 of the power supply / receiving unit 6 is configured so that the contact area of ​​one end of the power supply / receiving member 11 is larger than the contact area of ​​the other end, so that the power supply / receiving member 11 can be reliably brought into contact with the second current-carrying portion 42. This makes it possible to reliably connect the power supply / receiving member 11 and the bus cable 5, and to prevent a load due to deformation of the bus cable 5 from being directly transmitted to the power supply / receiving member 11. In the first embodiment, the power supply / reception member 11 of the power supply / reception device 1 is made of an elastic member (conical coil spring).

[0062] With this configuration, the contact portion of the power supply / receiving member 11 can be biased in the direction of contact with the planar second current-carrying portion 42, so that the power supply / receiving member 11 and the second current-carrying portion 42 can be more reliably conducted. In addition, even if the power supply / receiving unit 6 is subjected to an external shock, the biasing force of the elastic member makes it easy to maintain the conductive state. Furthermore, when the power supply / receiving unit 6 is dropped while being carried, the exposed power supply / receiving member 11 acts as a shock absorber, reducing damage to the cylindrical body 7. In the first embodiment, the tip of the lead 10 is crimped to form the crimped portion 10k, and the width of the tip of the crimped portion 10k is configured to be longer than the diameter of the power supply / receiving member 11 on the small diameter side. With this configuration, it is possible to prevent the power supply / reception member 11 from falling off the lead 10. [Application example of the first embodiment] Next, application examples using the power supply / reception device 1 according to the first embodiment will be described with reference to the drawings. [First application example] FIG. 8 is a schematic diagram showing a power supply and reception module group 101 according to a first application example of the power supply and reception device 1 according to the first embodiment.

[0063] As shown in Fig. 8, the power supply / receiving module group 101 according to the first application example is configured by connecting a plurality of power supply / receiving modules 100 (see Fig. 1), each of which is configured by connecting a plurality of power supply / receiving devices 1 in parallel via bus cables 5A and 5B. Specifically, as shown in an enlarged view of the connection portion in Fig. 8, the plurality of power supply / receiving modules 100 are connected via male connectors 110 and female connectors 120 of the bus cables 5A and 5B constituting each power supply / receiving module 100, respectively. In this way, by providing male and female connectors at both ends of the bus cables 5A and 5B, respectively, the number of power supply / receiving modules 100 constituting the power supply / receiving module group 101 can be easily increased or decreased depending on conditions such as the amount of power generation and the installation location. [Second application example]

[0064] Fig. 9A is a schematic diagram showing a foldable power supply / receive module group 102 according to a second application example of the power supply / receive device 1 according to the first embodiment, and Fig. 9B is a diagram showing a folded state of the foldable power supply / receive module group 102. Fig. 9C is a diagram showing the configuration of a fixed power supply / receive module 103 constituting the foldable power supply / receive module group 102.

[0065] 9A and 9B, the foldable power supply / receiving module group 102 according to the second application example is the same as the first application example in that it uses a plurality of power supply / receiving modules 100, but differs in that, as shown in Fig. 9C, both longitudinal ends of a plurality of power supply / receiving devices 1 constituting each power supply / receiving module 100 are fixed by a frame 104 to form a fixed power supply / receiving module 103. That is, in the fixed power supply / receiving module 103, the frame 104 prevents the bus cable 5 from being bent between the power supply / receiving devices 1.

[0066] In addition, the foldable power supply / receive module group 102 differs from the first application example in that the fixed power supply / receive modules 103 of the multiple fixed power supply / receive modules 103 are connected to each other by the bus cable 5 without using connectors. This connection configuration allows the foldable power supply / receive module group 102 to be stretched or folded at each connection portion. That is, as shown in FIG. 9A, it is possible to fold it to an appropriate state according to the installation location, and as shown in FIG. 9B, it is possible to easily transport it by folding it completely. Note that the connection between the fixed power supply / receive modules 103 may be made not only by the bus cable 5, but also by providing a member for protecting the bus cable 5, or may be configured to reduce the load on the bus cable 5 when it is stretched or folded via a rotation mechanism such as a hinge. [Third application example] FIG. 10A is a schematic diagram showing a portable power supply / reception module 105 relating to a third application example of the power supply / reception device 1 relating to the first embodiment, and FIG. 10B is a schematic diagram showing the unfolded state of the portable power supply / reception module 105.

[0067] 10A and 10B, a portable power supply / receiving module 105 according to the third application example includes a tote bag 106 and a power supply / receiving module 100. The tote bag 106 includes a gripping portion 106g and a line fastener 106t. As shown in FIG. 10A, the power supply / receiving module 100 is folded at the bus cables 5A and 5B that connect the power supply / receiving devices 1 to each other, so that the module can be stored in the tote bag 106 in a rolled-up state. In this state, the tote bag 106 can be carried by gripping the gripping portion 106g.

[0068] In addition, in the portable power supply / receiving module 105, one end side of the bus cables 5A and 5B of the power supply / receiving module 100 is fixed inside the tote bag 106, and as shown in Fig. 10B, the rolled up power supply / receiving module 100 can be unfolded from inside to outside the tote bag 106 by opening the line fastener 106t. In this unfolded state, the other end side of the bus cables 5A and 5B can be connected to an external device, so that the power supply / receiving module 100 can be used at the destination. Second Embodiment Next, a second embodiment of the present invention will be described with reference to the drawings. Figure 11 shows the second embodiment. The second embodiment differs from the first embodiment in that a tubular connecting member that connects the power supply / reception socket 2 to another power supply / reception socket 2 is provided. Hereinafter, differences from the first embodiment will be described in detail, and descriptions of overlapping parts will be omitted where appropriate. FIG. 11 is a diagram showing a part of a power supply and reception module 100A including a power supply and reception device 1A according to the second embodiment. As shown in FIG. 11, the power supply / reception module 100A has a configuration in which a plurality of power supply / reception devices 1A are connected in a ladder shape via bus cables 5A and 5B. The power supply / reception device 1A includes a power supply / reception socket 2A according to the second embodiment and a power supply / reception unit 6. A socket body 3A of the power supply / reception socket 2A has a configuration including a connection member 12 instead of the arm portion 31 of the socket body 3 of the power supply / reception socket 2 of the first embodiment. The connection member 12 is composed of a flexible tubular member such as rubber, and is provided so as to communicate with the through holes (openings of the cable room 30) of the opposing bus cables 5 of each of two adjacent power supply / reception sockets 2A.

[0069] The connection member 12 is configured to enclose a portion of the common bus cable 5 between each two adjacent power supply / reception devices 1 that protrudes to the outside of the power supply / reception socket 2. That is, the power supply / reception socket 2A is configured so that the bus cable 5 is not exposed but is covered by the connection member 12. In the power supply / reception socket 2A, the buffer section 32 is configured to protrude in a direction perpendicular to the connection member 12 in place of the arm section 31, and has the same configuration as the buffer section 32 in the first embodiment.

[0070] Moreover, a plurality of grooves are formed linearly along the circumferential direction on the outer peripheral surface of the connection member 12 at equal intervals along the longitudinal direction. Similarly to the first embodiment, a male connector 110 or a female connector 120 is attached to the tip of the bus cable 5 extending outward from the power supply / reception device 1A, which is the end of the power supply / reception module 100A. In the example of Fig. 11, the male connector 110 is attached. Also, a connection member 12 having a length slightly shorter than the other parts is provided on a portion of the bus cable 5 extending toward the male connector 110. Hereinafter, the plurality of power supply / reception sockets 2A connected via the connection members 12 will be referred to as a "group of power supply / reception sockets 2A." [Manufacturing process for power supply / reception socket 2A group] First, a first manufacturing process for the power supply / reception socket 2A group will be described.

[0071] In the first manufacturing process, first, like the first connection configuration of the first embodiment, a part of the covering 52 is stripped off at a predetermined pitch from the common bus cable 5 to expose the core wires 51. Then, the first current-carrying portion 41 of the current-carrying member 4 is connected to each exposed core wire 51 by soldering or the like (see FIG. 5A). After that, the socket bodies 3A and the connection members 12 are integrally and collectively formed by, for example, injection molding so that each connection portion fits inside the cable chamber 30 and the portion of the bus cable 5 protruding from each socket body 3A is contained within the connection member 12. This forms a group of power supply / reception sockets 2A capable of forming the power supply / reception module 100A. Next, a second manufacturing process for the power supply / reception socket 2A group will be described.

[0072] In the second manufacturing process, first, a plurality of socket bodies 3A and a plurality of connection members 12 having the above-mentioned configuration are manufactured by injection molding or the like. Then, the common bus cable 5 is inserted in the order of the connection member 12 → socket body 3A → connection member 12 → socket body 3A, etc. As a result, a part of the bus cable 5 is arranged in the cable chamber 30 of each socket body 3A, and the connection member 12 containing the part of the bus cable 5 protruding from each socket body 3A is arranged between each socket body 3A. Then, the first current-carrying portion 41 of the current-carrying member 4 is pierced into a part of the bus cable 5 arranged in the cable chamber 30 of each socket body 3A, thereby electrically connecting the core wire 51 and the first current-carrying portion 41. Then, the end of each connection member 12 is fixed to the socket body 3A by adhesive or the like. As a result, a group of power supply / reception sockets 2A capable of forming the power supply / reception module 100A is formed. [Advantages of the second embodiment]

[0073] In the second embodiment, the power supply / receiving socket 2A is provided with a tubular connecting member 12 that communicates with a through hole of the bus cable 5 and connects the power supply / receiving socket 2A to another power supply / receiving socket 2A, and the socket body 3A is configured to have a buffer section 32 that protrudes in a direction perpendicular to the connecting member 12.

[0074] With this configuration, the power supply / reception socket 2A can be connected to another power supply / reception socket 2A via the connection member 12. In addition, the connection member 12 can cover the portion of the bus cable 5 that protrudes outward from the socket body 3A. This allows the connection member 12 to protect the bus cable 5. Furthermore, if the power supply / receiving module 100A is dropped to the ground or the like, the buffer section 32 can reach the ground before the power supply / receiving unit 6 and absorb the impact, thereby preventing or making it more difficult for the power supply / receiving unit 6 to collide with the ground or the like. In the second embodiment, the connection member 12 of the power supply / reception socket 2A is made of a flexible member. With this configuration, the multiple power supply and reception devices 1A constituting the power supply and reception module 100A can be easily folded at the connection member 12. This allows the power supply and reception module 100A to be easily deformed depending on the installation location, etc. [Modifications] In the above embodiment, the power supply / reception sockets 2, 2A are configured to be substantially cylindrical, but are not limited to this configuration, and the outer shape may be other shapes as long as only the inside is cylindrical.

[0075] In the above embodiment and its modified example, the flexibility of the arm 31 is utilized to prevent a gap from being generated between the outer circumferential surface of the bus cable 5 and the inner circumferential portion 31h of the arm 31, but the present invention is not limited to this configuration. For example, a resin material or the like may be applied or filled between the inner circumferential portion 31h of the arm 31 and the outer circumferential surface of the bus cable 5, or a waterproof tape may be wrapped around the tip of the arm 31 to close the gap with the bus cable 5, thereby preventing a gap from being generated. In the above embodiment and its modified example, the power supply / reception member 11 is configured from a conical coil spring, but the configuration is not limited to this. As long as the electrical connection between the lead 10 and the current-carrying member 4 can be ensured, the power supply / reception member 11 may be configured from other spring members, non-elastic members, etc.

[0076] In addition, although specific embodiments and their modifications have been described above, the embodiments and their modifications are merely illustrative and are not intended to limit the scope of the present invention. The apparatus and method described herein can be embodied in forms other than those described above. Furthermore, the above-described embodiments and their modifications can be omitted, substituted, and modified as appropriate without departing from the scope of the present invention. Such omitted, substituted, and modified forms are included in the scope of the claims and their equivalents, and belong to the technical scope of the present invention. [Explanation of symbols]

[0077] 1, 1A...power supply / reception device, 2, 2A...power supply / reception socket, 3, 3A...socket body, 4...current-carrying member, 5, 5A, 5B...bus cable, 5C, 5D...extension bus cable, 6...power supply / reception unit, 7...tubular body, 8...power supply / reception body, 9...stem, 10...lead, 10k...crimping portion, 11...power supply / reception member, 30...cable chamber, 31...arm portion, 31h...inner circumference portion, 32...buffer portion, 33...spiral groove, 34...partition wall, 35...rib, 36...air hole, 41...first current-carrying portion, 42...second current-carrying portion, 51...core wire, 52...covering portion, 81...connecting line, 100, 101...power supply / receiving module, 102...foldable power supply / receiving module group, 103...fixed power supply / receiving module, 104...frame, 105...portable power supply / receiving module, 106...carrying bag, 106g...handling portion, 106t...line fastener

Claims

1. A power supply / reception socket attached to an end of a power supply / reception unit, A socket body having a bus cable embedded in the socket body through a side surface thereof; a first current-carrying portion disposed inside the socket body and electrically connected to the bus cable, and a current-carrying member having a second current-carrying portion electrically connected to the first current-carrying portion and exposed toward an opening of the socket body so as to come into contact with a power supply / reception member provided at an end of the power supply / reception unit.

2. 2. The power supply / reception socket according to claim 1, wherein the socket body has a cylindrical inner peripheral surface and is provided with a helical groove formed in a circumferential direction at least on an opening side of the inner peripheral surface.

3. 3. The power supply / reception socket according to claim 2, further comprising an air hole provided at a position on the side surface of the socket body that does not interfere with the spiral groove.

4. 2. The power supply / reception socket according to claim 1, further comprising a rib provided on an inner side surface of the socket body for guiding the power supply / reception member to the second current-carrying portion.

5. The power supply / receiving socket according to claim 4, characterized in that the ribs are provided at a predetermined interval along the inner circumferential direction, and the width of the ribs gradually increases from the opening side toward the bottom surface portion so as to grip the second conductive portion at the bottom surface portion.

6. 2. The power supply / reception socket according to claim 1, wherein the socket body is made of a flexible material.

7. a tubular connecting member that communicates with the through hole of the bus cable and connects the power supply / reception socket to another power supply / reception socket; 2. The power supply / reception socket according to claim 1, wherein the socket body includes a buffer portion protruding in a direction perpendicular to the connecting member.

8. 8. The power supply / reception socket according to claim 7, wherein the connection portion is made of a flexible material.

9. A power supply / reception device including a power supply / reception unit and a power supply / reception socket attached to an end of the power supply / reception unit, The power supply / reception socket is A socket body having a bus cable embedded in the socket body through a side surface thereof; a first current-carrying portion disposed inside the socket body and electrically connected to the bus cable, and a second current-carrying portion electrically connected to the first current-carrying portion and exposed toward an opening of the socket body, the second current-carrying portion being in contact with a power supply / reception member provided at an end of the power supply / reception unit, The power supply / reception unit includes: A cylindrical body, A power supply / reception body disposed inside the cylindrical body; a lead electrically connected to a current-carrying connection line provided at one end and the other end of the power supply / reception body, the lead protruding outward from one end and the other end of the cylindrical body, a power supply / reception member made of a conductive material, one end of which contacts the protruding tip of the lead and the other end of which contacts the second current-carrying portion, The power supply / reception device, wherein the power supply / reception member is configured such that a contact area at the one end is larger than a contact area at the other end.

10. 10. The power supply / reception device according to claim 9, wherein the power supply / reception member is made of an elastic member.

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