KR102102588B1 - Plug device and power distribution system - Google Patents

Abstract

Disclosed is a plug device that is easily connected to a grounding conductor of a wiring duct before being electrically connected to a conductor for feeding a wiring duct, and a distribution system provided with the plug device, which is connected to a wiring duct. to provide. The plug device 200 includes a main body portion 81, a connecting portion 82 protruding from the main body portion 81, a power supply terminal 70 inside the connecting portion 82, and a side surface of the connecting portion 82 ( 84) and a ground connection terminal 51 disposed along the main arrangement surface 845. The ground connection terminal 51 is a ground connection terminal before the power supply terminal 70 is electrically connected to the power supply conductor of the wiring duct 100 in the process in which the plug device 200 is connected to the wiring duct 100. 51) is disposed at a position electrically connected to the grounding conductor of the wiring duct 100.

Description

PLUG DEVICE AND POWER DISTRIBUTION SYSTEM

The present invention relates generally to a plug device and a distribution system, and more particularly to a plug device connected to a wiring duct having a conductor for feeding, and a distribution system having a wiring duct and a plug device.

Conventionally, there is a distribution system in which a plug device is attached to a wiring duct having a conductor for feeding, and power is supplied to electric equipment through the wiring duct and the plug device (for example, see Patent Document 1). The distribution system is installed in a facility in which a large number of electric devices are used, such as a factory or a data center.

In general, when connecting a wiring duct and a plug device, it is required not only to electrically connect the plug device to the conductor for feeding the wiring duct, but also to electrically connect the plug device to the grounding conductor of the wiring duct.

Japanese Patent Publication No. 2014-225353

The present disclosure provides a plug device that is easily connected to a grounding conductor of a wiring duct before being electrically connected to a conductor for feeding a wiring duct, and a distribution system comprising the plug device, when connected to a wiring duct. The task is to do it.

The plug device according to one embodiment of the present disclosure is connected to a wiring duct having a power supply conductor and a ground conductor. The plug device includes a main body portion, and a connecting portion that protrudes from the main body portion and is disposed in an internal space of the wiring duct in a state where the plug device is connected to the wiring duct. The plug device is provided inside the connecting portion, and also includes a feeding terminal that is electrically connected to the conductor for feeding in the connected state. The connecting portion has a main arrangement surface which is a side surface facing the direction perpendicular to the direction in which the connecting portion protrudes. The plug device is also provided with a ground connection terminal disposed along the main arrangement surface and electrically connected to the ground conductor in the connection state. In the connection process, the ground connection terminal is disposed at a position where the ground connection terminal is electrically connected to the ground conductor before the power supply terminal is electrically connected to the conductor for power supply. The connection process is a process from a state other than the connection state to the connection state.

The distribution system according to one embodiment of the present disclosure includes the plug device and a wiring duct to which the plug device is connected.

1 is a perspective view of a plug device and a distribution system according to an embodiment of the present invention.
Fig. 2 (a) is a perspective view of a wiring duct in the above-described power distribution system.
Fig. 2B is a cross-sectional view of the wiring duct in the above-described power distribution system.
3 (a) is a perspective view of the plug device according to the first embodiment in the above-described power distribution system.
Fig. 3 (b) is a perspective view of the plug device according to the first embodiment in the above-described power distribution system.
4A is a perspective view of a combination of a connecting member and a grounding member in the plug device according to the first embodiment.
Fig. 4 (b) is a perspective view of the grounding member described above.
5 is a cross-sectional view showing a step of connecting the plug device according to the first embodiment to the wiring duct in the above-described power distribution system.
6 is a cross-sectional view showing a step of connecting the plug device according to the first embodiment to the wiring duct in the above-described power distribution system.
7 is a cross-sectional view showing a step of connecting the plug device according to the first embodiment to the wiring duct in the above-described power distribution system.
8 is a perspective view of the plug device according to the second embodiment in the above-described power distribution system.
9 is a perspective view of a combination of a ground plate and a ground connection terminal in the plug device according to Embodiment 2 described above.
10 is a cross-sectional view showing a step of connecting the plug device according to the second embodiment to the wiring duct in the above-described power distribution system.
11 is a cross-sectional view showing a step of connecting the plug device according to the second embodiment to the wiring duct in the above-described power distribution system.
12 is a cross-sectional view showing a step of connecting the plug device according to the second embodiment to the wiring duct in the above-described power distribution system.

First, the outline of how the inventors came to complete the present disclosure will be described.

When connecting a wiring duct and a plug device, it is required not only to electrically connect the plug device to the power supply conductor of the wiring duct, but also to electrically connect the plug device to the grounding conductor of the wiring duct.

In connecting the plug device to the wiring duct, if the plug device is electrically connected to the conductor for grounding after being electrically connected to the conductor for feeding, the plug device is not electrically connected to the conductor for grounding, but electrically to the conductor for feeding. The connected state occurs. In view of the recent stricter safety standards, it is preferable that a state in which the plug device is not electrically connected to the grounding conductor does not occur even for a short time.

Therefore, the inventor of the present disclosure, in connecting the plug device to the wiring duct, facilitates the electrical connection to the grounding conductor of the wiring duct before the plug device is electrically connected to the conductor for feeding the wiring duct. It has been completed. Hereinafter, one embodiment of the present disclosure will be described.

The power distribution system 300 including the plug device 200 and the plug device 200 and the wiring duct 100 according to the present embodiment shown in FIG. 1 will be described.

The distribution system 300 provided with the wiring duct 100 and the plug device 200 is used, for example, to supply electric power to electric equipment in a facility. The wiring duct 100 is installed in a facility, for example, and constitutes a power supply path. By connecting the plug device 200 connected to an electric device or the like to the optimal position in the wiring duct 100, electric power can be supplied to the electric device or the like through the wiring duct 100 and the plug device 200. The power distribution system 300 is installed in a facility in which a large number of electric devices such as factories and data centers are used.

In the power distribution system 300 shown in FIG. 1, the wiring duct 100 is elongate, and is provided so that the longitudinal direction may follow a horizontal plane. The plug device 201 according to the first embodiment, which is the plug device 200, is connected to the upwardly facing surface of the wiring duct 100. The plug device 202 according to the second embodiment, which is the plug device 200, is connected to the downward facing surface of the wiring duct 100. In addition, the plug device 200 may be connected only to a surface facing upward or a surface facing downward of the wiring duct 100. In addition, with respect to the posture shown in FIG. 1, the wiring duct 100 is installed in a posture rotated by 90 ° around an axis along the longitudinal direction of the wiring duct 100, and the plug device 200 is also provided with the wiring duct 100 ). Moreover, the wiring duct 100 may be provided in various postures, such as a posture in which the longitudinal direction follows a vertical direction.

In the following description, in the state in which the power distribution system 300 is installed as shown in Fig. 1, the direction perpendicular to the horizontal plane (orthogonal) is set to "up and down", and the lower side in the up and down direction is "downward", Make the upper side "up". Moreover, the longitudinal direction of the wiring duct 100 is set to "left-right direction", and the direction orthogonal to both "up-down direction" and "left-right direction" is made into "front-back direction". Moreover, in the front-rear direction, the side with the ground connection terminal 51 with respect to the connection part 82 of Embodiment 1 mentioned later is called "front", and the side opposite to "front" is called "rear". In addition, in the left-right direction, when the power distribution system 300 is viewed from the front, the left side is referred to as "left" and the right side is referred to as "right". "Left" and "Right" respectively in the "front" and "bottom" in the "up and down direction" in the drawing, the "front" and "rear" in the "front and rear direction", and the "left and right direction", respectively. Arrows are merely for illustrative purposes and do not involve reality. These directions are not intended to limit the installation state of the power distribution system 300.

In addition, in the following description, the direction and the direction orthogonal to a specific direction (for example, the protruding direction of the connection part 82) do not mean only the direction and the side which make 90 degrees strictly with respect to a specific direction. In light of common sense, as long as the present embodiment exhibits the desired action, the direction and the side which can be identified with the direction and the side forming the 90 ° are also included.

Hereinafter, the ground connection in the wiring duct 100 and the ground connection terminal 51 in the plug device 200 may be referred to as a ground connection. In addition, hereinafter, electrically connecting the conductor 30 for power supply in the wiring duct 100 and the power supply terminal 70 in the plug device 200 may be called power supply connection.

3 (a) to 12, the plug device 200 according to the present embodiment includes a wiring duct 100 having a conductor 30 for feeding and a conductor for grounding (FIGS. 2 (a) and 2 ( b). The plug device 200 includes a main body portion 81, a connection portion 82, a power supply terminal 70, and a ground connection terminal 51 (especially FIGS. 3 (a), 3 (b), and See Figure 8). The connecting portion 82 protrudes from the main body portion 81. The connecting portion 82 is disposed in the inner space 13 of the wiring duct 100 in a state where the plug device 200 is connected to the wiring duct 100 (hereinafter referred to as a connecting state). The power supply terminal 70 is disposed inside the connection portion 82. The connecting portion 82 has a main arrangement surface 845 which is a side surface 84 facing a side perpendicular to the projecting direction of the connecting portion 82. Further, the protruding direction of the connecting portion 82 is a direction including the direction on which the connecting portion 82 protrudes and the opposite side. The main arrangement surface 845 may be directed in any direction as long as it is a direction perpendicular to the projecting direction of the connecting portion 82. The power supply terminal 70 is electrically connected to the power supply conductor 30 in the connected state. The ground connection terminal 51 is arrange | positioned along the side surface 84 facing the direction orthogonal to the protrusion direction of the connection part 82 in the connection part 82. As shown in FIG. The ground connection terminal 51 is electrically connected to a grounding conductor in a connected state. In the connection process, the ground connection terminal 51 is disposed at a position where the ground connection terminal 51 is electrically connected to the grounding conductor before the power supply terminal 70 is electrically connected to the power supply conductor 30. . The connection process is a process from a state in which the plug device 200 is not connected to the wiring duct 100 to a state in which it is not connected, that is, in a connection state.

The distribution system 300 according to the present embodiment includes the plug device 200 and the wiring duct 100 (see FIG. 1).

In this embodiment, in the case where the plug device 200 is connected to the wiring duct 100, before the plug device 200 is electrically connected to the power supply conductor 30 of the wiring duct 100, the wiring duct 100 ) It is easy to be electrically connected to the grounding conductor.

Hereinafter, the plug device 200 and the power distribution system 300 will be described in more detail. In addition, although the distribution method in the plug apparatus 200 and the distribution system 300 demonstrated below is a single-phase three-wire distribution system, for example, a three-phase three-wire distribution system may be sufficient, and a three-phase four-wire distribution system may be sufficient. . That is, there is no restriction on the distribution method in the plug device 200 and the distribution system 300. For the plug device 200 and the power distribution system 300, an optimal design change according to the power distribution method is possible.

First, the wiring duct 100 to which the plug device 200 is connected will be described (see FIGS. 2 (a) and 2 (b)). The wiring duct 100 includes a hollow frame 10 having conductivity, a support portion 20 supported by the frame 10 in the inner space 13 of the frame 10, and an interior of the frame 10 In the space 13, a power supply conductor 30 supported by the support portion 20 is provided. In addition, the inner space 13 of the frame 10 is the inner space 13 of the wiring duct 100. In the present embodiment, the frame 10 is a conductor for grounding in the plug device 200. The frame 10 has a ground terminal 11.

The frame 10 is made of metal, for example. The frame 10 has a length. That is, the frame 10 is long. The frame 10 is cylindrical. The central axis of the frame 10 follows the longitudinal direction of the frame 10, that is, the left and right directions. The frame 10 is formed by combining two plate-shaped members 14 and 14.

The frame 10 has an inner space 13 of the frame 10 and a connector 12 connecting the outer space of the frame 10. The opening direction of the connector 12 is orthogonal to the longitudinal direction of the frame 10. In addition, the opening direction of the connection port 12 is a direction orthogonal to the connection port 12. In this embodiment, the opening direction coincides with the vertical direction. In the present embodiment, the connection port 12 has a rectangular shape. The frame 10 may have a plurality of connection ports 12. For example, the frame 10 has a connection port 12 (connection port 121) that opens upward toward the external space, and another connection port 12 (connection port 122) that opens downward toward the external space. . The frame 10 has a plurality of connecting ports 121 that open upward toward the outer space, and they may be aligned in the longitudinal direction of the frame 10. The frame 10 further has a plurality of connecting ports 122 that open downward toward the outer space, and they may be aligned in the longitudinal direction of the frame 10. That is, the position and number of the connection ports 12 can be appropriately changed.

The outer surface of the frame 10 may be painted as necessary. However, in the present embodiment, the inner circumferential surface of the connecting port 12 in the frame 10 is not painted and is exposed to the outside. The inner circumferential surface of this connection port 12 is the ground terminal 11 in this embodiment.

The frame 10 has two sides 15 facing each other in the reverse direction (front and rear in this embodiment). The direction in which each side surface 15 faces is orthogonal to the opening direction of any connection port 12. Each side 15 has a concave groove 16 having a length along the longitudinal direction of the frame 10.

The support portion 20 has electrical insulation properties. The support part 20 is made of synthetic resin, for example. The support part 20 is supported on the inner surface of the frame 10 in the inner space 13 of the frame 10. In this embodiment, the wiring duct 100 includes a plurality of support portions 20, and the plurality of support portions 20 are aligned in the longitudinal direction of the frame 10. The plurality of support portions 20 are alternately arranged on the inner surface of the frame 10 on the downward facing surface and on the upward facing surface. The connection port 12 is formed at a position where the support portion 20 in the frame 10 is not arranged. The support portion 20 has a concave portion 21 for supporting the conductor 30 for feeding. The number of concave portions 21 is the same as the number of conductors 30 for power feeding, and three in this embodiment. The recessed portions 21 are aligned in the front-rear direction.

In this embodiment, the wiring duct 100 includes three conductors 30 for feeding. The three power supply conductors 30 are S poles, R poles, and T poles of single-phase three-wire wiring, respectively. The power supply conductor 30 has conductivity. The power supply conductor 30 is made of metal, for example. The power supply conductor 30 is a rod shape having a length along the longitudinal direction of the frame 10. The three feeding conductors 30 are supported by the supporting portions 20 by being fitted into three recessed portions 21 of the supporting portions 20, respectively. That is, the three feeding conductors 30 are aligned in the front-rear direction. The cross-sectional shape orthogonal to the longitudinal direction of the frame 10 of the power supply conductor 30 is a rectangular shape having a long side along the vertical direction.

Hereinafter, the plug device 200 (201) according to the first embodiment and the plug device 202 according to the second embodiment, which are specific examples of the plug device 200, will be described.

(Embodiment 1)

The plug device 201 according to the first embodiment will be described with reference to Figs. 3 (a) to 7. 3 (a) and 3 (b), the plug device 201 according to the first embodiment includes a main body portion 81 and a connecting portion 82 protruding from the main body portion 81. . The connecting portion 82 protrudes from one surface 53 (hereinafter referred to as the opposing surface 53) of the main body portion 81. In the first embodiment, the opposing surface 53 faces downward. For this reason, in Embodiment 1, the connecting part 82 protrudes downward, and the protruding direction of the connecting part 82 coincides with the up-down direction. The opposing surface 53 faces the wiring duct 100 in the connected state. A cable 400 is connected to the plug device 201. The cable 400 is a ground wire electrically connected to the ground connection terminal 51 (hereinafter referred to as the first ground connection terminal 51 in the description of the first embodiment) in the plug device 201, And an electric wire electrically connected to the power supply terminal 70 in the plug device 201. The cable 400 is connected to the left end of the body portion 81. In the first embodiment, the plug device 201 further includes a circuit breaker. The circuit breaker is electrically connected between the power supply terminal 70 and the electric wire. The circuit breaker is housed in the body portion 81.

The connection part 82 has a slightly smaller dimension than the connection port 12 when viewed from the bottom to the top, and has a shape fitted in the connection port 12. The connecting portion 82 has an exposure port 83 that opens downward. In addition, the connection portion 82 has four side surfaces 84 (first side surface 841, second side surface 842), and third side surface 843, which face four different directions orthogonal to the projecting direction of the connection portion 82, respectively. ) And the fourth side 844. The first side 841 and the second side 842 are facing the front and the rear, ie opposite sides of each other. The third side 843 and the fourth side ( 844) are directed to the right and left, respectively, that is, to the opposite sides of each other. In the interior of the connection portion 82, there are three terminal chambers 822 arranged in the front-rear direction. It also has an inner wall 823 that divides 822. Each terminal chamber 822 communicates from the exposed port 83 to the outside of the connection portion 82. The connection portion 82 is connected to the third side surface 843. , Has three concave portions 851 connecting the inside and the outside of the connection portion 82, and each concave portion 851 is opened downward.The three concave portions 851 are three terminal rooms 822 To The connecting portion 82 also has three concave portions 852 that connect the inside and the outside of the connecting portion 82 to the fourth side surface 844, and each concave portion 852 opens downward. These three recessed portions 852 also communicate with three terminal rooms 822, respectively.

In addition, the plug device 200 includes a base portion 86 housed inside the body portion 81, and constitutes a connection member 87 in which the connection portion 82 and the base portion 86 are integral members. (See Fig. 4 (a)). The connecting portion 82 protrudes downward from the lower surface of the base portion 86. The lower surface of the base portion 86 has a supporting surface 861 surrounding the connecting portion 82.

The plug device 201 is provided with three feeding terminals 70 (see FIGS. 5 to 7). The three feeding terminals 70 are respectively disposed in the three terminal chambers 822. The power supply terminal 70 has conductivity. The power supply terminal 70 is made of metal, for example. Each power supply terminal 70 has two receiving plates 71 facing each other, and the leading end portions of the lower side of the receiving plates 71 are in contact with each other. In addition, the power supply terminal 70 may have other suitable shapes in accordance with the shape of the conductor 30 for power feeding, etc., in addition to the present embodiment. The power supply terminal 70 is electrically connected to an electric wire in the cable 400.

The first ground connection terminal 51 is disposed along the main arrangement surface 845 which is the side surface 84 of the connection portion 82. The plug device 201 further includes a second ground connection terminal 52 separately from the first ground connection terminal 51. The second ground connection terminal 52 is disposed along the sub-arrangement surface 846, which is the side surface 84 facing the direction opposite to the direction in which the main placement surface 845 faces, of the first ground connection terminal 51. It is done. In the first embodiment, the main placement surface 845 is the first side 841 and the sub placement surface 846 is the second side 842. However, if the main placement surface 845 and the sub placement surface 846 face opposite directions, the main placement surface 845 and the sub placement surface 846 may be any side surface 84. For example, the main placement surface 845 may be the second side surface 842, and the sub placement surface 846 may be the first side surface 841. The main placement surface 845 is the third side surface 843, and the sub placement surface 846 may be the fourth side surface 844. The main placement surface 845 is the fourth side surface 844, and the sub placement surface 846 may be the third side surface 843.

The first ground connection terminal 51 and the second ground connection terminal 52 are electrically connected to a grounding conductor (that is, the frame 10) in a connected state.

Each of the first ground connection terminal 51 and the second ground connection terminal 52 has conductivity. Each of the first ground connection terminal 51 and the second ground connection terminal 52 is made of metal, such as copper, for example. The first ground connection terminal 51 protrudes downward from the opposing surface 53 and further contacts the first side 841 and a base portion 54 and a plate spring 55 protruding from the base portion 54 4 (a) and 4 (b).

The leaf spring 55 has a thickness, and the direction of the thickness follows the direction that the main placement surface 845 faces. The leaf spring 55 has a fixed end 551 and a free end 552. In a state in which no external force is applied to the leaf spring 55, the position of the free end 552 along the projecting direction of the connecting portion 82 is on the side of the body portion 81 with respect to the fixed end 551. In addition, in a state in which no external force is applied to the leaf spring 55, the position of the free end 552 along the direction in which the main placement surface 845 is directed is the main placement surface 845 with respect to the fixed end 551. It is on the opposite side. In the first embodiment, the fixed end 551 is connected to the lower end portion of the base portion 54. The free end 552 is above the fixed end 551 and is also ahead of the fixed end 551. In this way, the leaf spring 55 is, as a whole, the connecting portion 82 such that the fixed end 551 is positioned at a position away from the free end 552 in a direction perpendicular to the projecting direction of the connecting portion 82 relative to the connecting portion 82. ) Is inclined with respect to the projecting direction.

The leaf spring 55 further has a bent portion 553 between the fixed end 551 and the free end 552. The inclination with respect to the projecting direction of the connecting portion 82 of the portion from the fixed end 551 in the leaf spring 55 to the bent portion 553 is the free end 552 from the bent portion 553 in the leaf spring 55. ) Is greater than the slope with respect to the projecting direction of the connecting portion 82. In the first embodiment, the plate spring 55 has a flat plate shape, and has a curved portion at only one place between the fixed end 551 and the free end 552. The curved portion is a bent portion 553. The bent portion 553 is above the fixed end 551 and is also in front of the fixed end 551. The free end 552 is above the bent portion 553 and is also in front of the bent portion 553. In addition, the inclination with respect to the vertical direction of the portion from the fixed end 551 to the bent portion 553 in the leaf spring 55 extends from the bent portion 553 in the leaf spring 55 to the free end 552. It is greater than the slope of the part in the vertical direction. In the first embodiment, the dimension between the bent portion 553 and the fixed end 551 in the leaf spring 55 is smaller than the dimension between the bent portion 553 and the free end 552.

In addition, the leaf spring 55 is between the fixed end 551 and the bent portion 553, when the leaf spring 55 contacts the grounding conductor in the connection process, the first contact portion 554 that first contacts the grounding conductor ). The leaf spring 55 also has a second contact portion 555 that contacts the grounding conductor in a connected state between the bent portion 553 and the free end 552. The dimension between the bent portion 553 and the first contact portion 554 is smaller than the dimension between the bent portion 553 and the second contact portion 555. The method of contacting the first ground connection terminal 51 in the connection process with the ground terminal 11 in the grounding conductor will be described again later.

The second ground connection terminal 52 has conductivity. The second ground connection terminal 52 is made of metal, such as copper, for example. The second ground connection terminal 52 protrudes downwardly from the opposing surface 53 and further includes a base portion 56 that is in contact with the second side surface 842 and a plate spring 57 that protrudes from the base portion 56. Be equipped. The leaf spring 57 has a fixed end, a free end and a bent portion similar to the case of the first ground connection terminal 51.

The dimension of the first ground connection terminal 51 in the protruding direction of the connection portion 82 is larger than the dimension of the second ground connection terminal 52 in the protruding direction of the connection portion 82. In the first embodiment, the dimension of the connecting portion 82 in the projecting direction is the dimension in the vertical direction. In the first embodiment, the dimension of the entire first ground connection terminal 51 in the vertical direction is larger than the dimension of the entire second ground connection terminal 52 in the vertical direction. The dimension in the vertical direction of the leaf spring 55 of the first ground connection terminal 51 is also larger than the dimension in the vertical direction of the leaf spring 57 of the second ground connection terminal 52. In addition, the vertical position of the fixed end 551 of the leaf spring 55 in the first ground connection terminal 51 (that is, the position in the protruding direction of the connection portion 82) is connected to the second ground connection terminal 52. It is below the up-down position of the fixed end (ie, in the direction in which the connecting portion 82 protrudes).

The plug device 201 is provided with a grounding member 58 (see FIGS. 4 (a) and 4 (b)), and the first ground connection terminal 51 and the second ground connection terminal 52 are ground members ( 58). The grounding member 58 includes a frame body 581 surrounding the connecting portion 82, and a first grounding connection terminal 51 and a second grounding connection terminal 52 protruding from the frame body 581, respectively. . The frame body 581 has a rectangular frame shape, and has an opening at a position where the connecting portion 82 is disposed. The frame body 581 has a first frame body 583 disposed along the first side 841 and a second frame body 584 disposed along the second side 842, and the first frame body The 583 and the second frame body 584 are opposed with the openings therebetween. The first ground connection terminal 51 and the second ground connection terminal 52 protrude from the first frame body 583 and the second frame body 584, respectively. The frame body 581 also has an attachment hole 582.

The grounding member 58 is fixed to the connecting member 87. Accordingly, the frame body 581 of the grounding member 58 is disposed on the support surface 861 of the base portion 86, and the first grounding connection terminal 51 is the first side surface of the connection portion 82 ( 841), and a second ground connection terminal 52 is disposed along the second side 842 of the connection portion 82. The boss 863 protrudes from the support surface 861, and the boss 863 is thermally cocked through the attachment hole 582 of the frame body 581. Thereby, the grounding member 58 is fixed to the connecting member 87. Further, the grounding member 58 may be fixed to the connecting member 87 by another suitable method. For example, the connecting member 87 may be integrally molded with the grounding member 58 by the insert molding method, so that the grounding member 58 may be fixed to the connecting member 87. The grounding member 58 is not fixed to the connecting member 87, and may be provided in the plug device 201 by another method. The plug device 201 does not include the ground member 58, and the first ground connection terminal 51 and the second ground connection terminal 52 may be provided in the plug device 201 by other methods.

When the plug device 201 is provided with the first ground connection terminal 51 and the second ground connection terminal 52, as described later, the plug device 200 is connected to the wiring duct 100 with good stability. .

The grounding member 58 can be produced, for example, by cutting a single metal plate. In this case, for example, the frame main body 581 is formed from the outer edge portion of the metal plate, and the first ground connection terminal 51 and the second ground connection terminal 52 are cut by cutting out the portion inside the outer edge portion of the metal plate. Can be formed. For this reason, the first ground connection terminal 51 and the second ground connection terminal 52 can be easily produced and installed in the plug device 201. When manufacturing the grounding member 58 in this way, the dimensions of the metal plate are limited to the dimensions of the connecting member 87, and the protruding length of the first grounding connecting terminal 51 and the protruding of the second grounding connecting terminal 52 The length is limited by the dimensions of the metal plate. For this reason, for example, if the protruding length of the first ground connection terminal 51 and the protruding length of the second ground connection terminal 52 are the same, feeding is connected by the first ground connection terminal 51 in the connection process. In some cases, it may not be possible to prevent a ground connection from occurring before. However, if the dimension of the protruding direction of the first ground connection terminal 51 is longer than the dimension of the protruding direction of the second ground connection terminal 52, the dimension of the protruding direction of the first ground connection terminal 51 is used in the feeding process. Therefore, it can be set so that a ground connection occurs before the power supply connection. In addition, the plug device 200 can be connected to the wiring duct 100 stably with the first ground connection terminal 51 and the second ground connection terminal 52.

The plug device 201 is provided with a hook 91, and the hook 91 protrudes from the opposing surface 53 of the body portion 81. The hook 91 is formed of, for example, a leaf spring. The hook 91 has a shape according to the concave groove 16 so as to engage the concave groove 16 of the frame 10. In the first embodiment, the number of hooks 91 is four. Each hook 91 is in a position according to the position of the concave groove 16 of the frame 10, the two hooks 91 are facing each other, and the other two hooks 91 are also facing each other. The number of hooks 91 may be any other suitable number.

In the connection process, first, the opposing surface 53 of the main body portion 81 of the plug device 200 faces the wiring duct 100, the connection portion 82 faces the connection port 12, and the power supply terminal 70 Are respectively opposed to the conductor 30 for feeding. In this state, the connecting portion 82 is inserted into the inner space 13 of the frame 10 from the connecting port 12.

Then, first, as shown in FIG. 5, the 1st contact part 554 of the leaf spring 55 in the 1st ground connection terminal 51 contacts with the ground terminal 11, and is electrically connected. That is, when the first ground connection terminal 51 contacts the ground terminal 11, the first contact portion 554 first contacts the ground terminal 11. Thereby, a ground connection is made. As the connection portion 82 moves into the wiring duct 100, the contact position with the ground terminal 11 in the first ground connection terminal 51, as shown in Figs. 6 and 7, the leaf spring 55 ), The first contact portion 554 is moved beyond the bent portion 553 to the second contact portion 555. When the connection of the plug device 201 to the wiring duct 100 is completed, the ground terminal 11 contacts the second contact portion 555. According to the movement of the contact position, the leaf spring 55 is elastically deformed by being pressed against the ground terminal 11 and moves toward the connection portion 82 side. For this reason, the leaf spring 55 presses the ground terminal 11 with elastic force, whereby the electrical connection of the 1st ground connection terminal 51 and the ground terminal 11 is stabilized. Similarly, the second ground connection terminal 52 is electrically connected to the ground terminal 11. However, the second ground connection terminal 52 contacts the ground terminal 11 after the first ground connection terminal 51 contacts the ground terminal 11 in the connection process. The leaf spring 57 of the second ground connection terminal 52 also presses the ground terminal 11 with an elastic force, whereby the electrical connection between the second ground connection terminal 52 and the ground terminal 11 is stabilized. In addition, since two terminals, such as the first ground connection terminal 51 and the second ground connection terminal 52, contact the ground terminal 11, only the first ground connection terminal 51 is ground terminal 11 Compared to the case of contact with, contact resistance can be reduced. In addition, the first ground connection terminal 51 and the second ground connection terminal 52 press the ground terminal 11 in the opposite direction to each other with elastic force, and accordingly, the ground terminal 11 is the first ground connection terminal 51 And the second ground connection terminal 52 respectively have opposite resistance forces. This also stabilizes the electrical connection between the first ground connection terminal 51 and the ground terminal 11, and the electrical connection between the second ground connection terminal 52 and the ground terminal 11.

In the connection process, as shown in Fig. 5, at the time when the first contact portion 554 of the first ground connection terminal 51 contacts the ground terminal 11, the power supply terminal 70 is a conductor for feeding ( 30). That is, at this point, the power supply terminal 70 and the power supply conductor 30 are not electrically connected. As the contact position with the ground terminal 11 in the first ground connection terminal 51 moves from the first contact portion 554 toward the second contact portion 555, as shown in FIG. 6, the power supply terminal ( The lower end of 70) contacts the conductor 30 for feeding. Thereby, the power supply terminal 70 and the power supply conductor 30 are electrically connected. In addition, the conductor 30 for feeding is sandwiched between the two receiving plates 71 while elastically deforming the two receiving plates 71 in the feeding terminal 70. When the connection of the plug device 201 to the wiring duct 100 is completed, as shown in FIG. 7, the power supply conductor 30 is sandwiched between the two receiving plates 71. The two receiving plates 71 press the conductor 30 for power feeding by an elastic force, whereby the electrical connection between the power supply conductor 30 and the power supply terminal 70 is stabilized. In this connection process, since the conductor 30 for feeding is fitted into the concave portion 851 and the concave portion 852 of the connecting portion 82, the connecting portion 82 is connected to the wiring duct 100 of the plug device 201. It does not hinder the connection.

When the connection of the plug device 201 to the wiring duct 100 is completed, the hook 91 of the plug device 200 is caught in the groove 16 of the wiring duct 100 accordingly. Thereby, the plug device 201 is stably fixed to the wiring duct 100.

As described above, in the connection process, the first ground connection terminal 51 is electrically connected to the frame 10, which is a grounding conductor, as the ground terminal 11 before the power supply terminal 70 is electrically connected to the power supply conductor 30. Is connected, and in such a position, the first ground connection terminal 51 is disposed. Specifically, the positions of the fixed ends 551, the free ends 552 and the bent portions 553 in the leaf spring 55 of the first ground connection terminal 51, and the fixed ends 551 and the bent portions The element called slope of the portion between 553 is appropriately set. These elements define the respective positions of the first contact 554 and the second contact 555 in the first ground connection terminal 51. By setting the positions of the fixed end 551 and the free end 552, the positions of the first contact portion 554 and the second contact portion 555 are defined between the fixed end 551 and the free end 552. In addition, the position of the bent portion 553 is set, and the inclination of the portion between the fixed end 551 and the free end 552 is appropriately set, so that the position of the first contact portion 554 is the fixed end 551 and the bent portion. (553). In addition, by setting the position of the bent portion 553, the position of the second contact portion 555 is defined between the bent portion 553 and the fixed end 551. Moreover, in Embodiment 1, the inclination of the portion from the fixed end 551 to the bent portion 553 is greater than the inclination of the portion from the bent portion 553 to the free end 552 in the leaf spring. For this reason, by making the leaf spring 55 stand up largely from the base portion 54 in the vicinity of the fixed end 551, it is easy to define the position of the first contact portion 554 near the fixed end 551. This makes it easy for the first ground connection terminal 51 to be electrically connected to the frame 10, which is a grounding conductor, before the power supply terminal 70 is electrically connected to the power supply conductor 30. Further, by properly adjusting the inclination of the portion from the bent portion 553 of the leaf spring 55 to the free end 552, it is possible to prevent an excessive deformation amount of the entire leaf spring 55 in the connection process. Thereby, the magnitude | size of the elastic force when the leaf spring 55 presses the ground terminal 11 by elastic force can be adjusted suitably, and also the damage of the leaf spring 55 can be suppressed.

(Embodiment 2)

The plug device 202 according to the second embodiment will be described with reference to FIGS. 8 to 12. The plug device 202 according to the second embodiment includes a main body portion 81 and a connecting portion 82 protruding from the main body portion 81 (refer to FIG. 8 in particular). Hereinafter, about the structure similar to 1st Embodiment, common code | symbol is attached | subjected and description is abbreviate | omitted suitably. The connecting portion 82 protrudes from one surface 53 (opposite surface 53) of the main body portion 81. In Embodiment 2, the opposing surface 53 faces upward. The opposing surface 53 faces the wiring duct 100 in the connected state. A cable 400 is connected to the plug device 202. The cable 400 connects the ground wire electrically connected to the ground connection terminal 51 in the plug device 202 and the electric wire electrically connected to the power supply terminal 70 in the plug device 202. Have The cable 400 is connected to the lower end of the main body portion 81. In the second embodiment, the plug device 202 further includes a circuit breaker. The circuit breaker is electrically connected between the power supply terminal 70 and the electric wire. The circuit breaker is housed in the body portion 81.

The configuration of the connection portion 82 and the power supply terminal 70 is in accordance with the first embodiment, except that the relationship between the upper side and the lower side is opposite to the first embodiment, and the relationship between the left and the right side is opposite to the first embodiment. This is the same as that of the plug device 201.

8, the ground connection terminal 51 is arrange | positioned along the 1st side surface 841 outside the connection part 82. As shown in FIG. The ground connection terminal 51 is electrically connected to a grounding conductor in a connected state. Further, the plug device 202 does not include the second ground connection terminal 52 in the first embodiment, but the plug device 200 may also include the second ground connection terminal 52 in the first embodiment. good.

The ground connection terminal 51 has conductivity. The ground connection terminal 51 is made of metal, such as copper, for example. As in the case of the first embodiment, the ground connection terminal 51 protrudes in the protruding direction of the connection portion 82 and further includes a base portion 54 and a base portion 54 that are in contact with the first side surface 841. It is provided with a leaf spring 55 protruding from. The configuration of the base portion 54 and the leaf spring 55 is that of the first embodiment, except that the relationship between the upper side and the lower side is opposite to the first embodiment, and the relationship between the left and the right side is opposite to the first embodiment. Same as the case. Moreover, the ground connection terminal 51 is provided with the fixing part 59 which protrudes rearward from the lower end of the base part 54.

In the second embodiment, the main body portion 81 is provided with a metal ground plate 813, and the ground connection terminal 51 is fixed to the ground plate 813 (see Fig. 9). The ground plate 813 includes a ceiling plate 812 constituting the opposing surface 53 in the body portion 81 and a base plate 815 housed inside the body portion 81. The base plate 815 has a terminal 814 to which a ground wire is connected. The ceiling plate 812 has a frame shape having two long sides and two short sides, and has an opening at a position where the connecting portion 82 is disposed. The base plate 815 has two long frame portions 816 constituting the long side and two short frame portions 817 constituting the short side. The fixed portion 59 of the ground connection terminal 51 is fixed to the inner surface of one end frame portion 817 by caulking connection or the like, so that the ground connection terminal 51 is fixed to the ground plate 813.

In addition, the structure of the ground connection terminal 51 is not limited to this. For example, the ground connection terminal 51 may be fixed to the connection portion 82 or a member including the connection portion 82, and in this case, the ground connection terminal 51 may have the same structure as in the first embodiment. good.

The plug device 202 has a hook 92, and the hook 92 protrudes from the opposing surface 53 of the body portion 81. The position and shape of the hook 92 is defined such that when the plug device 202 is connected to the wiring duct 100, the hook 92 is caught at the edge of the connector 12 in the frame 10. In the second embodiment, the number of hooks 92 is four, and these hooks 92 are in positions corresponding to the shape of the connector 12. The hook 92 is capable of swinging relative to the main body portion 81, and by swinging, the hook 92 is switched from the connected state to the state of being caught by the edge of the connector 12 and not being caught by the edge of the connector 12 do. In the state in which no external force is applied to the hook 92, the hook 92 is in a state of being caught at the edge of the connector 12. The body portion 81 has a pressing button 93 that swings the hook. When the pressing button 93 is pressed, the hook 92 swings in connection with it, and the hook 92 is brought into a state not to be caught by the edge of the connecting port 12.

In the connection process, first, the plug device 202 with respect to the wiring duct 100, the opposing surface 53 of the main body portion 81 faces the wiring duct 100, and the connecting portion 82 is connected to the connecting port 12 They are positioned so as to face each other, and the power supply terminals 70 face the power supply conductors 30, respectively. In the second embodiment, one side 84 (third side 843) of the connecting portion 82 has a convex portion 61 protruding in the direction in which the side 84 is facing, as shown in FIG. As shown in FIG. 2, the connector 12 has a concave portion 62 having a shape corresponding to the convex portion 61. In the position-aligned state, the convex portion 61 and the concave portion 62 can be engaged with each other, and for this reason, the convex portion 61 and the concave portion 62, the connecting portion 82 enters the connecting port 12 Permits. In the non-positioned state, the convex portion 61 is caught at the edge of the connection port 12, and the connection section 82 does not enter the connection port 12. Therefore, by having the convex portion 61 and the concave portion 62, the plug device 202 can be properly positioned relative to the wiring duct 100. In addition, the plug device 202 according to the first embodiment may have a convex portion 61 as in the second embodiment. Not limited to the convex portion 61 and the concave portion 62, the connection portion 82 and the connection portion 12 are shaped to allow the connection portion 82 to enter the connection portion 12 by engaging each other in a position-aligned state. You may have

In the position-aligned state, the connecting portion 82 is inserted into the inner space 13 of the frame 10 from the connecting port 12. Then, as in the case of the plug device 201 according to the first embodiment, as shown in Fig. 10, first, the first contact portion 554 of the leaf spring 55 in the ground connection terminal 51 is the ground terminal ( 11) and electrically connected. Subsequently, as shown in Figs. 11 and 12, when the connection portion 82 is further inserted into the inner space 13 of the frame 10, the ground terminal 11 contacts the second contact portion 555. The leaf spring 55 presses the ground terminal 11 with an elastic force, whereby the electrical connection between the ground connection terminal 51 and the ground terminal 11 is stabilized. In addition, as in the case of the plug device 201 according to the first embodiment, as shown in Fig. 10, when the first contact portion 554 of the ground connection terminal 51 is in contact with the ground terminal 11, power is supplied. The terminal 70 and the power supply conductor 30 are not electrically connected. 11 and 12, as the contact position with the ground terminal 11 in the ground connection terminal 51 moves from the first contact portion 554 toward the second contact portion 555, the power supply terminal 70 ) And the conductor 30 for feeding are electrically connected.

Thus, in the second embodiment, as in the first embodiment, the ground connection terminal 51 is electrically connected to the grounding conductor before the power supply terminal 70 is electrically connected to the power supply conductor 30, and in such a position. , Ground connection terminal 51 is disposed.

In the connection process, when the hook 92 touches the edge of the connection port 12, the hook 92 enters the inner space 13 of the frame 10 while swinging. When the connection of the plug device 202 to the wiring duct 100 is completed, the hook 92 is put on the edge of the connector 12, that is, the hook 92 of the plug device 202 is connected to the wiring duct 100 ) Is caught at the edge of the connector 12. Thereby, the plug device 202 is stably fixed to the wiring duct 100. When the plug device 202 is separated from the wiring duct 100, the hook 92 is shaken by pressing the pressure button 93, so that the hook 92 is not caught in the edge of the connector 12 , The plug device 202 can be easily removed.

In the power distribution system 300 according to the present embodiment, as described above, in connecting the plug device 200 to the wiring duct 100, a ground connection can be made before a power supply connection occurs.

The plug device 200 and the power distribution system 300 are not limited to the above description, and design changes such as addition, deletion, or replacement of various configurations are possible as necessary.

For example, in the above description, the plug device 200 includes a circuit breaker between the power supply terminal 70 and the electric wire, but it is not necessary to provide a circuit breaker. In addition, the plug device 200 may be provided with a device such as an earth leakage breaker, a terminal block, and a current transformer CT, for example.

In addition, in the connection process, the ground connection terminal 51 is in a position where the ground connection terminal 51 is electrically connected to the grounding conductor before the power supply terminal 70 is electrically connected to the power supply conductor 30 in the connection process. It should be arranged. Then, the specific position and shape of the ground connection terminal 51 is not limited.

For example, in the above description, in the first embodiment, the plug device 200 includes two grounding terminals, such as a ground connection terminal 51 and a second ground connection terminal 52, and in the second embodiment, The plug device 200 includes one grounding terminal called a ground connection terminal 51. However, the number of terminals for ground connection is not limited to these. For example, in the first embodiment, the plug device 200 includes a terminal for ground connection and a fourth side 844 of the connection portion 82 disposed along the third side 843 of the connection portion 82. Therefore, at least one of the terminals for ground connection which is arrange | positioned may be provided further.

In the above description, in the first and second embodiments, the ground connection terminals 51 are arranged along the first side 841 of the connection portion 82, but the ground connection terminals 51 are arranged at different positions. It may be. For example, the ground connection terminal 51 may be disposed along the second side surface 842, the third side surface 843, or the fourth side surface 844 of the connection portion 82.

In the above description, in the first embodiment, the second ground connection terminal 52 is disposed along the second side 842 of the connection portion 82, but the second ground connection terminal 52 is disposed at a different position. It may be. For example, when the ground connection terminal 51 is disposed along the first side 841, the second ground connection terminal 52 is disposed along the third side 843 or the fourth side 844. It may be.

In the above description, in the first embodiment, the dimension of the ground connection terminal 51 in the protruding direction of the connection portion 82 is larger than the dimension of the second ground connection terminal 52 in the protruding direction of the connection portion 82. But it doesn't have to be. For example, the dimensions of the ground connection terminal 51 and the dimensions of the second ground connection terminal 52 may be the same. In this case, in the process of connecting the plug device 200 to the wiring duct 100, before the power supply terminal 70 contacts the conductor 30 for power supply, not only the ground connection terminal 51 but also the second ground connection terminal The 52 may also be connected to the ground terminal 11 and electrically connected. The dimension of the second ground connection terminal 52 may be larger than that of the ground connection terminal 51.

Further, the ground connection terminal 51 does not need to have a leaf spring 55 as long as it is in contact with the grounding conductor in the connection process and is electrically connected to the grounding conductor. The ground connection terminal 51 may have a plate spring having a structure different from the plate spring 55 in this embodiment.

Further, the grounding conductor provided in the wiring duct 100 may not be the frame 10 as described above. For example, the wiring duct 100 may be provided as a grounding conductor, and a conductor having the same structure as the power supply conductor 30 may be provided at a position in contact with the ground connection terminal 51 in the connection process. The plug device 200 may be provided with a ground connection terminal 51 having an optimum structure according to the structure of the grounding conductor.

In addition, if a ground connection can occur before the power supply connection in the connection process, the structure of the power supply conductor 30 and the power supply terminal 70 and the method of connecting both may be any structure and method.

The configuration of the connection port 12 in the wiring duct 100 is also not limited to the above description. For example, the connection port 12 is a slit shape having a length along the longitudinal direction of the frame 10, and the plug device 200 may be connected to an appropriate position in the longitudinal direction of the connection port 12.

(summary)

The plug device 200 according to the first aspect is connected to a wiring duct 100 having a conductor 30 for feeding and a conductor (frame 10) for grounding. The plug device 200 includes a body portion 81. The plug device 200 also includes a connecting portion 82 that protrudes from the main body portion 81 and is disposed in the inner space 13 of the wiring duct 100 in a connected state. The plug device 200 is provided inside the connecting portion 82 and also includes a feeding terminal 70 that is electrically connected to the feeding conductor 30 in the connected state. The connecting portion 82 has a main placement surface 845 which is a side surface 84 facing in a direction orthogonal to the projecting direction of the connecting portion 82. The plug device 200 also includes a ground connection terminal 51 disposed along the main arrangement surface 845. The ground connection terminal 51 is electrically connected to a grounding conductor in a connected state in which the plug device 200 is connected to the wiring duct 100. In the connection process, the ground connection terminal 51 is disposed at a position where the ground connection terminal 51 is electrically connected to the grounding conductor before the power supply terminal 70 is electrically connected to the power supply conductor 30. . The connection process is a process from the state in which the plug device 200 is not connected to the connected state.

According to this configuration, when the plug device 200 is connected to the wiring duct 100, the grounding conductor before the plug device 200 is electrically connected to the power supply conductor 30 of the wiring duct 100 It is easy to be electrically connected to.

In the plug device 200 according to the second aspect, in the first aspect, the connection portion 82 is a sub-placement surface 846 which is a side surface 84 facing a direction opposite to the direction in which the main placement surface 845 faces ). The plug device 200 is disposed along the sub-arrangement surface 846 separately from the first ground connection terminal 51 that is the ground connection terminal 51, and is electrically connected to a grounding conductor in a connected state. A ground connection terminal 52 is further provided.

According to this configuration, not only the first ground connection terminal 51 but also the second ground connection terminal 52 can be used to electrically connect the plug apparatus 200 and the grounding conductor, thereby improving the stability of the connection. You can.

The plug device 200 according to the third aspect is, in the second aspect, the dimension of the first ground connection terminal 51 in the projecting direction of the connection portion 82 is that of the second ground connection terminal 52. It is larger than the dimension of the connecting portion 82 in the projecting direction.

According to this configuration, in particular, by using the first ground connection terminal 51, the plug device 200 can be electrically connected to the grounding conductor before being electrically connected to the power supply conductor 30.

In the plug device 200 according to the fourth aspect, in the second or third aspect, the dimension of the protruding direction of the connection portion 82 from the main body portion 81 to the tip end of the first ground connection terminal 51 is , It is larger than the dimension in the projecting direction of the connecting portion 81 from the main body portion 81 to the tip of the second ground connection terminal 52.

According to this configuration, in particular, by using the ground connection terminal 51, the plug device 200 can be electrically connected to the ground conductor before being electrically connected to the power supply conductor 30.

In the plug device 200 according to the fifth aspect, in any one of the first to fourth embodiments, the ground connection terminal 51 has a leaf spring 55 having a fixed end 551 and a free end 552 ). When the external force is not applied to the leaf spring 55, the position of the free end 552 in the protruding direction of the connecting portion 82 is on the side of the body portion 81 with respect to the fixed end 551. In addition, in the state in which no external force is applied to the leaf spring 55, the position of the free end 552 in the direction along the direction in which the main placement surface 845 faces is relative to the fixed end 551 ( 845). The leaf spring 55 further has a bent portion 553 between the fixed end 551 and the free end 552. The inclination of the portion from the fixed end 551 in the leaf spring 55 to the bent portion 553 relative to the projecting direction of the connecting portion 82 is a free end from the bent portion 553 in the leaf spring 55. The portion up to 552 is greater than the inclination of the connecting portion 82 with respect to the projecting direction.

According to this configuration, when the plug device 200 is connected to the wiring duct 100, it is easy to define the initial contact position with the grounding conductor in the ground connection terminal 51. Further, the stability of the electrical connection between the ground connection terminal 51 and the grounding conductor can be improved.

In the plug device 200 according to the sixth aspect, in the fifth aspect, in a state in which no external force is applied to the plate spring 55, the plate spring 55 is inclined with respect to the protruding direction of the connecting portion 82. . The leaf spring 55 is inclined so that the position of the free end 552 in the direction along the direction in which the main placement surface 845 faces is opposite to the main placement surface 845 relative to the fixed end 551. have.

In the plug device 200 according to the seventh aspect, in the fifth or sixth aspect, in a state in which no external force is applied to the leaf spring 55, the portion from the fixed end 551 to the bent portion 553 is It is inclined with respect to the projecting direction of the connecting portion 82. This portion is inclined such that the position of the bent portion 553 in the direction along the direction in which the main placement surface 845 is directed is opposite to the main placement surface 845 with respect to the fixed end 551.

In the plug device 200 according to the eighth aspect, in the form of any one of the fifth to seventh, in a state in which no external force is applied to the leaf spring 55, from the bent portion 553 to the free end 552 The part of is inclined with respect to the projecting direction of the connecting portion 82. This part is inclined such that the position of the free end 552 in the direction along the direction in which the main placement surface 845 faces is opposite to the main placement surface 845 with respect to the bent portion 553.

In the plug device 200 according to the ninth aspect, in the form of any one of the fifth to eighth, the leaf spring 55 is a grounding conductor when the leaf spring 55 is connected to a grounding conductor in the connection process. And a first contact portion 554 that first contacts. The leaf spring 55 further has a second contact portion 555 that contacts the grounding conductor in a connected state between the bent portion 553 and the free end 552. The dimension between the bent portion 553 and the first contact portion 554 is smaller than the dimension between the bent portion 553 and the second contact portion 555.

According to this configuration, when the plug device 200 is connected to the wiring duct 100, it is easy to define the initial contact position with the grounding conductor in the ground connection terminal 51. Further, the stability of the electrical connection between the ground connection terminal 51 and the grounding conductor can be improved.

In the plug device 200 according to the tenth aspect, in any one of the first to ninth embodiments, the wiring duct 100 includes a hollow frame 10, and the inner space 13 of the frame 10 ) Is the inner space 13 of the wiring duct 100.

In the plug device 200 according to the seventh aspect, in the sixth aspect, the frame 10 is a grounding conductor.

In the plug device 200 according to the eleventh aspect, in any one of the first to tenth forms, the wiring duct 100 is a connection port connecting the inner space 13 and the outer space of the wiring duct 100 ( 12), and in the connected state, the connecting portion 82 is disposed in the inner space 13 through the connecting port 12.

In the plug device 200 according to the twelfth aspect, in the eleventh aspect, the frame 10 has a connection port 12.

In the plug device 200 according to the thirteenth aspect, in any one of the first to twelfth aspects, the grounding conductor has a ground terminal 11, and in the connected state, the ground connection terminal 51 is a ground terminal By contacting (11), it is electrically connected to the grounding conductor.

In the plug device 200 according to the fourteenth aspect, in the thirteenth aspect, the inner circumferential surface of the connection port 12 is the ground terminal 11.

The distribution system 300 according to the fifteenth aspect includes a plug device 200 according to any one of the first to fourteenth forms, and a wiring duct 100 to which the plug device 200 is connected.

According to this configuration, when the plug device 200 is connected to the wiring duct 100, before the plug device 200 is electrically connected to the power supply conductor 30 of the wiring duct 100, it is connected to the grounding conductor. It is easy to be electrically connected.

100: wiring duct 201: plug device
202: plug device 300: power distribution system
10: frame (grounding conductor) 11: grounding terminal
12: connection port 13: interior space
30: conductor for power supply 51: ground connection terminal (first ground connection terminal)
52: second ground connection terminal 55: leaf spring
551: fixed end 552: free end
553: bent portion 554: first contact portion
555: second contact portion 70: power supply terminal
81: body portion 82: connecting portion
84: side 845: main arrangement surface
846: secondary layout

Claims (6)

A plug device connected to a wiring duct having a power supply conductor and a grounding conductor,
Body part,
A connecting portion protruding from the main body portion and disposed in an interior space of the wiring duct in a state where the plug device is connected to the wiring duct;
A power supply terminal located inside the connection part and electrically connected to the power supply conductor in the connection state
Equipped with,
The connecting portion has a main arrangement surface which is a side surface facing a direction perpendicular to the projecting direction of the connecting portion.
The plug device further includes a ground connection terminal disposed along the main arrangement surface and electrically connected to the ground conductor in the connected state,
In the connection process from the state in which the plug device is not in the connected state to the connected state, the ground connection terminal is electrically connected to the grounding conductor before the power supply terminal is electrically connected to the conductor for power supply. Where the ground connection terminal is disposed
Plug device.
According to claim 1,
The connecting portion further has a sub-arrangement surface which is a side surface facing the direction opposite to the direction in which the main arrangement surface is directed,
The plug device further includes a second ground connection terminal which is disposed along the sub-arrangement surface and is electrically connected to the ground conductor in the connection state, separately from the first ground connection terminal which is the ground connection terminal. doing
Plug device.
According to claim 2,
The dimension of the protruding direction of the connection portion of the first ground connection terminal is larger than the dimension of the protruding direction of the connection portion of the second ground connection terminal.
Plug device.
The method according to any one of claims 1 to 3,
The ground connection terminal has a leaf spring having a fixed end and a free end,
In the state in which no external force is applied to the leaf spring, the position of the free end in the direction of the connecting portion protruding is on the body portion side with respect to the fixed end, and furthermore, the direction of the main arrangement surface of the free end is The position along the direction is on the opposite side to the main arrangement surface with respect to the fixed end,
The leaf spring further has a bent portion between the fixed end and the free end,
The inclination of the portion from the fixed end to the bent portion in the leaf spring relative to the projecting direction of the connecting portion is in the projecting direction of the connecting portion of the portion from the bent portion to the free end in the leaf spring. Greater than the slope
Plug device.
The method of claim 4,
The plate spring further has a first contact portion between the fixed end and the bent portion, which first contacts the grounding conductor when the plate spring contacts the grounding conductor in the connection process,
The leaf spring further has a second contact between the bend and the free end, in contact with the grounding conductor in the connected state,
The dimension between the bent portion and the first contact portion is smaller than the dimension between the bent portion and the second contact portion.
Plug device.
The plug device according to claim 1,
Wiring duct to which the plug device is connected
Distribution system comprising a.

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