JP2020053239A - Wiring accessory and production method therefor - Google Patents

Abstract

To achieve high reliability by suppressing shorting of a pair of coated electric wires connected with a terminal part in a wiring accessory.SOLUTION: An output socket includes: a terminal part 100 connected with a pair of power lines for supplying electric power from a commercial power supply; and a switching unit 70 connected with a pair of coated electric wires 140, 142 led out from the terminal part 100 and having a switching part for switching a supply path of electric power. The terminal part 100 includes a pair of wire connection parts 86b, 88b connected with the pair of coated electric wires 140, 142 and further includes a wire isolation part 72f for isolating one coated electric wire 142 led out from the one wire connection part 88b from the other coated electric wire 140 led out from the other wire connection part 86b by covering the wire connection part 88b.SELECTED DRAWING: Figure 13

Description

  The present disclosure relates to a wiring device and a production method thereof.

  BACKGROUND ART Conventionally, Patent Literature 1 discloses an outlet including at least one pair of plug-in plug connection portions and a cutoff mechanism that cuts off power supply to the plug-in plug connection portion. This outlet has a detection unit that detects tracking that occurs between the plug blades of the insertion plug, and when an abnormality is detected by this detection unit, the shut-off mechanism is activated to operate the insertion plug connection unit. The power supply to the power supply is cut off.

JP 2007-42407 A

  An outlet described in Patent Literature 1 includes a terminal portion to which a power supply line for supplying commercial power is connected, and a pair of covered wires is connected to a wire connection portion of the terminal portion to connect the pair of wires. For example, power may be supplied to a circuit board or the like in an outlet via the power supply. In this case, when one of the wires connected to the one wire connection portion comes into contact with the edge of the other wire connection portion, the insulating film may be damaged and short-circuited.

  An object of the present disclosure is to suppress a short circuit between a pair of covered electric wires connected to a terminal in a wiring device, and to improve reliability.

  The wiring device according to an aspect of the present disclosure is configured such that a terminal portion to which a pair of power supply lines for supplying electric power from a commercial power supply is connected, and a pair of covered electric wires derived from the terminal portion are connected to form a power supply path. A functional unit having an opening / closing part for opening and closing, or a blade receiving part into which a plug blade of an insertion plug is inserted, wherein the terminal part has a pair of electric wire connections to which a pair of covered electric wires are respectively connected. A wire that covers the at least one wire connection and separates one covered wire derived from the one wire connection and the other covered wire derived from the other wire connection An isolation unit is further provided.

  ADVANTAGE OF THE INVENTION According to the wiring apparatus etc. which concern on this indication, it can suppress that a pair of covered electric wire connected to a terminal part short-circuits, and can improve reliability.

It is a perspective view which shows the outlet with a switch attached to the attachment frame (it is only hereafter called an outlet suitably). FIG. 2 is an exploded perspective view of the outlet shown in FIG. 1. It is a front view of the outlet which shows the state which removed the cover. FIG. 4 is an exploded perspective view showing the outlet shown in FIG. 3 with a case and a terminal box removed. FIG. 5 is a perspective view illustrating a state in which a case, a terminal box, and a body member are removed from the outlet illustrated in FIG. 4. It is a side view of an opening and closing unit in a closed state. It is a side view of the opening / closing unit in an open circuit state. FIG. 5 is a perspective view of the outlet shown in FIG. 4 as viewed from the direction of arrow A (terminal side). FIG. 3 is an exploded perspective view showing a temperature sensor mounting structure of the outlet. FIG. 10 is an assembled perspective view of the temperature sensor mounting structure of FIG. 9. It is a top view including a partial section showing a temperature sensor mounting structure. It is a perspective view which expands and shows a part of terminal part. It is a perspective view showing the state where a pair of covering electric wires were connected to a terminal part. FIG. 14 is a perspective view similar to FIG. 13, showing a state where an inner housing member of the opening / closing unit is removed.

  Hereinafter, embodiments according to the present disclosure will be described in detail with reference to the accompanying drawings. In this description, specific shapes, materials, numerical values, directions, and the like are merely examples for facilitating understanding of the present disclosure, and can be appropriately changed according to uses, purposes, specifications, and the like. When a plurality of embodiments and modified examples are included below, it is assumed from the beginning that the characteristic portions are appropriately combined and used.

  FIG. 1 is a perspective view showing an outlet 10 with a switch, which is a wiring device attached to the attachment frame 1. FIG. 2 is an exploded perspective view of the outlet 10 shown in FIG. 1 and 2 (the same applies to other drawings), an arrow X indicates a width direction (or a left-right direction), an arrow Y indicates a front-rear direction (or a depth direction), and an arrow Z indicates a vertical direction (or a height direction). Is shown. These three directions are orthogonal to each other. Note that these directions are merely examples, and do not substantially define the configuration of the outlet according to the present disclosure.

  As shown in FIGS. 1 and 2, the outlet 10 is attached to a mounting frame 1 and installed on a building such as a wall (not shown). The mounting frame 1 includes an upper plate portion 2, a lower plate portion 3, and a pair of beam portions 4 extending in the vertical direction Z on both sides in the width direction X and connected to the upper plate portion 2 and the lower plate portion 3. And 4. As a result, the mounting frame 1 is formed with an opening 5 having a vertically long rectangular shape in a front view in a region surrounded by the upper plate portion 2 and the lower plate portion 3 and the pair of crosspieces 4 and 4. I have.

  The mounting frame 1 is formed by punching and bending a metal plate. The pair of crosspieces 4 and 4 are bent into an L-shaped cross section, and a plurality of engagement holes 6 are formed on the side surface along the front-rear direction Y at intervals in the vertical direction Z. The outlet 10 is attached to the attachment frame 1 by these engagement holes 6.

  As shown in FIGS. 1 and 2, the outlet 10 is formed in a rectangular parallelepiped having a vertically long shape when viewed from the front when viewed from the front. The size of the outlet 10 is formed to the size specified in the JIS standard.

  The outlet 10 includes a case 16, a main cover member 17, and an outlet body cover 12. The main cover member 17 and the outlet main body cover 12 are provided to cover a front opening of the case 16. In addition, the outlet 10 further includes an outlet outer cover 14. Each of the main cover member 17, the outlet main body cover 12, and the outlet outer cover 14 is suitably formed of a resin molded product.

  The main cover member 17 has a front wall 17a and a side wall 17b. The front wall 17a extends in the up-down direction Z on one side in the width direction X. The side wall 17b is formed so as to surround the four sides in the main cover member 17. An opening 19 is formed on the front surface of the main cover member 17 between the front wall 17a and the side wall 17b. The opening 19 is formed in a vertically long rectangular shape in a front view. The opening 19 is formed so that the upper cover 12a of the outlet main body cover 12 is fitted and attached. In the present embodiment, the upper cover 12 a of the outlet main body cover 12 corresponds to a sub cover member attached to the main cover member 17.

  The front wall 17a of the main cover member 17 is formed with an opening 17c having a vertically long rectangular shape in a front view. The opening 17c is formed to expose an operation lever 71 of the opening / closing unit 70 described later. An operation piece 17d is formed on the front wall 17a in a cantilever shape above the opening 17c. Through this operation piece 17d, a push switch mounted on a switch panel described later can be pressed down.

  A terminal cover 17e is provided below the opening 19 on the front surface of the main cover member 17. When the terminal cover 17e is assembled to the case 16, the terminal cover 17e is provided so as to cover the terminal portion 100 housed in the case 16, and the terminal cover 17e is provided through a through hole formed in the terminal cover 17e. It is configured such that the ground terminal 102, the screw 105, and the like are exposed.

  Further, on the side wall 17b of the main cover member 17, a total of four locking pieces 21 are formed, two on each side edge in the width direction. Each locking piece 21 is formed to protrude rearward from the edge of the side wall 17b. Each locking piece 21 is formed with a rectangular locking hole. When the main cover member 17 is assembled to the case 16, the engaging pieces 21 are engaged with the engaging portions 22 projecting from the side surface of the case 16 into the engaging holes, so that the main cover member 17 is engaged. Is assembled with the case 16 locked.

  Further, the main cover member 17 is formed with a locking portion 23 protruding rearward from an edge of the front wall 17a on the opening 19 side. When the upper cover 12a of the outlet main body cover 12 is fitted into the opening 19 and assembled, the engagement portion 23 has a function of engaging with the upper cover 12a to maintain the assembled state.

  The outlet main body cover 12 is arranged so as to cover the front surface of the outlet 10. The outlet main body cover 12 includes an upper cover 12a and a lower cover 12b. The upper cover 12 a is provided so as to cover the front of the outlet portion 40 housed in the case 16. Details of the case 16 and the outlet 40 will be described later.

  In the upper cover 12a, the blade insertion portions 18a and 18b are arranged in two upper and lower stages. In the upper blade insertion portion 18a, blade insertion holes 20a and 20b into which two plate-like blades of an insertion plug (not shown) are inserted are formed side by side in the left-right direction. In the lower blade insertion portion 18b, blade insertion openings 20a and 20b into which the two blades of the insertion plug are inserted are formed side by side in the left-right direction, and the blade insertion holes 20a and 20b are formed. A ground terminal insertion opening 20c into which a grounding rod-shaped terminal is inserted is formed at a lower position therebetween. In the present embodiment, the opening edge of one blade insertion port 20a is formed in a substantially D-shaped frame shape in a front view, and the opening edge of the other blade insertion port 20b is formed in a rectangular frame shape. An example is shown. However, the present invention is not limited to this, and the opening edges of the blade insertion openings 20a and 20b may be formed in the same shape.

  The lower cover 12 b, which forms a part of the outlet main body cover 12, is provided to cover the ground terminal 102 of the terminal unit 100 housed in the case 16. The surface of the lower cover 12b is provided with characters such as "earth" and "open", a mark indicating grounding, and the like. The lower cover 12b is detachably attached to the upper cover 12a. Specifically, the mounting is performed by inserting two mounting pins 13 integrally formed on the lower cover 12b into mounting holes 15 formed on the upper cover 12a. By removing the lower cover 12b from the outlet 10, the ground terminal 102 of the terminal unit 100 is exposed. As a result, the outlet 10 is in a state in which the external ground wire can be connected.

  The outlet outer cover 14 is formed in a U-shape when viewed from the front when viewed from the front, and is disposed adjacent to the upper, left, and lower sides of the outlet main body cover 12 on three sides. The outlet outer cover 14 is provided so as to cover the front surface of an opening / closing unit 70 described later. The outlet outer cover 14 has a vertically long rectangular opening 14a and a circular through hole 14b located above the opening 14a. The operation lever 71 of the opening / closing unit 70 is disposed in the opening 14a in an exposed state. Further, a push switch mounted on a circuit board, which will be described later, is arranged inside (ie, behind) the through hole 14b. Thus, the push switch can be pressed by inserting, for example, a thin rod-shaped tool or the tip of a pen into the through hole 14b, and an operation test of the opening / closing unit and a buzzer stopping operation can be performed. Further, the push switch has a light emitting portion, and the through hole 14b also functions as a light transmitting window for confirming the lighting state of the light emitting portion from the outside.

  Above the through hole 14b in the outlet outer cover 14, "power" and "abnormal" are indicated. The area above the display "power" is a power lamp hole 14c which lights up, for example, green when the power of the outlet 10 is supplied, and the area above the display "abnormal" lights up or flashes, for example, red when the outlet 10 abnormally generates heat. 14d. In addition, the power supply light hole 14c and the abnormal light hole 14d may be light-transmitting portions through which light is transmitted by forming the wall surface of the outlet outer cover 14 to be thin.

  FIG. 3 is a front view of the outlet 10 with the cover removed. FIG. 4 is an exploded perspective view showing the outlet 10 shown in FIG. 3 with the case 16 and the terminal box 101 removed.

  The outlet 10 includes a case 16. The case 16 is made of, for example, a resin molded product. As shown in FIGS. 3 and 4, the case 16 has a rectangular parallelepiped outer shape, has a bottom surface at a rear portion, and has a shape opened forward.

  As shown in FIGS. 3 and 4, an engaging portion 22 is formed to protrude from the outer surface along the long side direction of the case 16. Two engaging portions 22 are provided on each side surface at intervals. The main cover member 17 is attached to the case 16 by engaging the locking pieces 21 of the main cover member 17 with these engaging portions 22.

  As shown in FIG. 4, a plurality of pillars 26 are erected on the bottom surface 24 of the case 16. When the opening / closing unit 70 is housed in the case 16, each of the pillars 26 has a function of supporting the opening / closing unit 70 by contacting each end surface with a holding portion projecting from a side wall surface of the opening / closing unit 70. In addition, a plurality of support protrusions (only one is shown in FIG. 4) 29 protrude from the bottom surface 24 of the case 16. The circuit board 120 housed in the case 16 is supported by the tip surfaces of the support protrusions 29.

  FIG. 5 is a perspective view illustrating a state where the case, the terminal box, and the body member are removed from the outlet illustrated in FIG. 4. As shown in FIGS. 3 to 5, the outlet 10 includes an outlet unit 40, an opening / closing unit 70, and a circuit board 120. In addition, the outlet 10 may include a ground terminal 102. The outlet unit 40 corresponds to a functional unit having a blade receiving unit in the present disclosure, and the opening / closing unit 70 corresponds to a functional unit having an opening / closing unit in the present disclosure.

  The outlet portion 40 includes two blade receiving spring blocks 42a and 42b, and a body member 44 that supports these blade receiving spring blocks 42a and 42b. The body member 44 is preferably formed of an insulating resin molded product.

  The blade receiving spring block 42a is a terminal member that is electrically connected to an external power supply line of a voltage phase (hereinafter, referred to as an L phase) connected to the terminal portion 100 of the outlet 10. The other blade receiving spring block 42b is a terminal member that is electrically connected to a neutral-phase (hereinafter, referred to as N-phase) external power supply line connected to the terminal portion 100 of the outlet 10. The blade receiving spring blocks 42a and 42b are manufactured by, for example, punching and bending a metal plate such as a copper plate. Electric power from a commercial power supply is supplied to the blade receiving spring blocks 42a and 42b via the L-phase power line and the N-phase power line.

  The blade receiving spring blocks 42a and 42b may have the same shape. Therefore, hereinafter, the configuration of one blade receiving spring block 42a will be mainly described, and the description of the other blade receiving spring block 42b will be appropriately omitted with the help.

  The blade receiving spring block 42 a includes two pairs of blade receiving springs 48, a connecting portion 50 that mechanically connects and electrically connects the blade receiving springs 48, and an edge portion of the connecting portion 50 along the front-rear direction. It has a bent connection terminal part 52 integrally.

  In the blade receiving spring block 42a for the L phase, the pair of blade receiving springs 48 is disposed inside the blade insertion port 20a formed on the upper right side of the upper cover 12a. The other pair of blade receiving springs 48 is arranged inside the blade insertion slot 20a formed on the right side of the lower part of the upper cover 12a (see FIG. 1).

  In the N-phase blade receiving spring block 42b, the pair of blade receiving springs 48 is disposed inside the blade insertion port 20b formed on the upper left side of the upper cover 12a. The other pair of blade receiving springs 48 is disposed inside the blade insertion port 20b formed on the lower left side of the upper cover 12a (see FIG. 1).

  As shown in FIG. 5, one end of an L-phase conducting wire 54a is connected to the connection terminal 52 of the L-phase blade receiving spring block 42a by soldering or the like. Further, one end of an N-phase conducting wire 54b is connected to the connection terminal portion 52 of the N-phase blade receiving spring block 42b by soldering or the like. The L-phase conductive wire 54a and the N-phase conductive wire 54b are preferably formed of, for example, an insulated braided copper wire. The other ends of the L-phase conductor 54a and the N-phase conductor 54b are connected to the opening / closing unit 70, respectively. Note that the L-phase conductor 54a and the N-phase conductor 54b correspond to a pair of covered conductors in the present disclosure.

  A temperature sensor 54 is attached to each of the connection terminals 52 of the blade receiving spring blocks 42a and 42b by a clip 56. The mounting structure of the temperature sensor 54 will be described later in detail. The temperature sensor 54 measures the temperatures of the blade receiving spring blocks 42a and 42b, respectively, and transmits the measurement results to the circuit board 120 via the signal lines 60a and 60b.

  The circuit board 120 is a printed board on which pattern wiring (not shown) is formed. On the circuit board 120, a control unit 122 constituted by, for example, a microcomputer or the like is mounted. The control unit 122 determines whether the temperature of the blade receiving spring blocks 42a, 42b does not exceed a predetermined threshold based on the measurement result transmitted from the temperature sensor 54. When the temperature of at least one of the blade receiving spring blocks 42a and 42b exceeds a predetermined threshold temperature, the control unit 122 determines that the outlet 10 is in an overheated state, and activates the opening / closing unit 70 via the signal line 60c. Send a signal.

  Here, the predetermined threshold temperature can be set, for example, to 100 ° C. to 150 ° C. The predetermined threshold temperature can be set according to the heat-resistant temperature of the resin material forming the cover 12 and the body member 44 of the outlet 10. As a resin material for forming the cover member such as the outlet main body cover 12 and the body member 44, for example, melamine resin, urea resin, polybutylene terephthalate (PBT) and the like are suitably used. The above-mentioned predetermined threshold temperature may be changed according to the environmental temperature (or ambient temperature) in which the outlet 10 is used.

  Further, a buzzer device is preferably mounted on the circuit board 120. When it is determined that the temperature of at least one of the blade receiving spring blocks 42a and 42b exceeds the predetermined threshold temperature and is in an overheated state, the control unit 122 sets the light emitting unit of the push switch 132 to a blinking state and sounds the buzzer device. Then, the notification operation may be performed.

  In the present embodiment, an example will be described in which the circuit board 120 has a function of detecting an overheated state of the outlet 10 as abnormal, but the circuit board 120 is not limited to this. The outlet may be provided with a seismic detection function of shutting off power supply when an earthquake of a predetermined seismic intensity or higher is detected as abnormal. In this case, the seismic intensity may be constituted by, for example, a seismic sensor such as a gyro sensor capable of detecting acceleration, which is installed on the circuit board or another portion inside the outlet. The seismic sensor is connected to a control unit on the circuit board via a pattern wiring or a signal line on the circuit board. The control unit outputs an operation signal to the opening / closing unit 70 when it is determined based on the input from the seismic sensor that the earthquake is equal to or greater than the predetermined seismic intensity. In addition, the outlet according to the present disclosure may include such a seismic detection function and the above-described overheat detection function together, or may include the seismic detection function alone. Further, the outlet according to the present disclosure may be provided with a leakage detection function of interrupting a current when leakage is detected as abnormal, in combination with the above-described overheating or seismic effect, or alone. A current sensor may be provided in the outlet to detect leakage, and the opening / closing unit may be activated when the current (physical quantity) flowing through the blade receiving spring block exceeds a predetermined threshold current value.

  As shown in FIG. 5, the outlet 10 includes a switch panel 130. A push switch 132 is mounted on the switch panel 130. The push switch 132 is arranged inside the through hole 14b of the outlet outer cover 14 (see FIGS. 1 and 2). Thus, the push switch 132 can be pressed down from outside the outlet 10 through the through hole 14b. The switch board 130 is connected to the circuit board 120 via a signal line. When the push switch 132 is pressed for a short time, an operation signal is transmitted from the circuit board 120 to the opening / closing unit 70 described later. As a result, the open / close unit 70 switches from the closed state to the open state, and the push switch 132 enters a blinking state indicating an abnormal state. By pressing the push switch 132 in this manner, it is possible to test whether or not the outlet 10 operates normally. Further, by operating the push switch 132 for a long time, the buzzer device for notifying the overheat state can be stopped.

  On the switch panel 130, a power light emitting unit 134 and an abnormal light emitting unit 136 are mounted. The power light emitting unit 134 is arranged inside the power lamp hole 14c of the outlet outside cover 14, and the abnormal light emitting unit 136 is arranged inside the abnormal lamp hole 14d of the outlet outside cover 14. (See FIG. 1). The power light emitting unit 134 is preferably configured by, for example, a light emitting diode (LED) that emits green light. The abnormal light emitting unit 136 is preferably configured by, for example, a light emitting diode (LED) that emits red light. The power lamp emitting unit 134 is turned on when the outlet 10 is in a power supply state. The abnormal light emitting unit 136 is turned on or blinks when abnormal heat generation is detected in the outlet 10 as described later. The light emitting units 134 and 136 constitute a part of the notification unit because the lighting state of these light emitting units 134 and 136 is visible from outside the outlet 10.

  Next, the opening / closing unit 70 will be described with reference to FIGS. FIG. 6 is a side view of the opening / closing unit 70 in a closed state. FIG. 7 is a side view of the opening / closing unit 70 in an open state. 6 and 7, the opening / closing unit 70 is shown in a state where the wall surface of the housing that covers the outside in the width direction is removed.

  As shown in FIG. 6, the opening / closing unit 70 has a housing 72. An operation lever 71 is rotatably provided on a front surface of the housing 72 in a state where the operation lever 71 is exposed.

  The opening / closing unit 70 includes a coil 73, a movable iron piece 74, a trigger lever 75, a support lever 76, an operating plate 77, a pressing spring 78, an operating member 79, press-contact springs 80 and 85, an N-phase movable terminal plate 81, N-phase movable terminal 82, L-phase movable terminal 83 and L-phase movable terminal 84, N-phase fixed terminal 86 and N-phase fixed terminal 87, and L-phase fixed terminal 88 and L-phase fixed terminal 89 Is provided.

  The coil 73 is supplied with power upon receiving an operation signal from the circuit board 120. Thus, the coil 73 generates a magnetic force. The movable iron piece 74 is provided in the housing 72 so as to be movable in the front-rear direction Y at a position close to (below in FIG. 6) the coil 73. The movable iron piece 74 is fixed to one end of the L-phase movable terminal plate 83. The other end of the L-phase conductive wire 54a is electrically and mechanically connected to one end 83a of the L-phase movable terminal plate 83 by soldering or the like.

  The trigger lever 75 has a substantially L-shape, and is provided on the side wall surface of the housing 72 in the width direction so as to be rotatable around a shaft portion 75a. One end of the trigger lever 75 is arranged at a position where it can be engaged with the movable iron piece 74.

  The support lever 76 has a shape extending in the front-rear direction Y, and is provided on the side wall surface of the housing 72 in the width direction so as to be rotatable around a shaft portion 76a. One end of the support lever 76 is arranged at a position where it can be engaged with the other end of the trigger lever 75.

  The operating plate 77 has one end thereof abutted on the other end of the support lever 76 and is supported. The operating plate 77 is connected to the other end of a substantially U-shaped pressing spring 78 whose one end is connected to the operation lever 71, and the pressing force of the pressing spring 78 causes one end to be above the other end of the support lever 76. Is pressed against.

  A torsion spring 90 is arranged around the rotation center of the operation lever 71. When the opening / closing unit 70 is operated to be in a power cutoff state as described later, the operation lever 71 is rotated by the urging force of the torsion spring 90 to project to the front of the outlet 10 as shown in FIG. Become.

  As shown in FIG. 6, the operating member 79 is disposed adjacent to the support lever 76 and the operating plate 77, and is provided on the width direction side wall of the housing 72 so as to be rotatable around a shaft portion 79a. The rear end (the lower end in FIG. 6) of the operating member 79 is urged by a press-contact spring 80. As a result, the operating member 79 is urged by the press-contact spring 80 in a direction that rotates in the counterclockwise direction in FIG.

  The operation member 79 is provided so that a substantially central portion in the front-rear direction Y can be engaged with the N-phase movable terminal plate 81. The other end of the N-phase conductive wire 54b is electrically and mechanically connected to one end of the N-phase movable terminal plate 81 by soldering or the like. Further, an N-phase movable terminal portion 82 is fixed to the other end of the N-phase movable terminal plate 81 by, for example, caulking.

  The N-phase movable terminal plate 81 is pressed by the operating member 79 to a position rotated clockwise against the urging force of the press-contact spring 85. Thus, when the operating member 79 is rotated in the counterclockwise direction by the urging force of the pressing spring 80 as described later, the pressing of the N-phase movable terminal plate 81 by the operating member 79 is released, so that the pressing spring 85 Is pushed up by the urging force.

  Further, the operating member 79 presses an intermediate portion of the L-phase movable terminal plate 83. An L-phase movable terminal 84 is fixed to the other end of the L-phase movable terminal 83 by, for example, caulking. As will be described later, when the operating member 79 rotates counterclockwise, the L-phase movable terminal plate 83 is pushed up by the rear end (lower end in FIG. 6) of the operating member 79 and the L-phase movable terminal 84 Move forward (upward in FIG. 6).

  The N-phase movable terminal 82 contacts and is electrically connected to an N-phase fixed terminal 87 arranged in the housing 72. The N-phase fixed terminal portion 87 is fixed to one end of the N-phase fixed terminal plate 86 by, for example, caulking. The N-phase fixed terminal plate 86 extends outside the housing 72.

  The L-phase movable terminal 84 abuts and is electrically connected to an L-phase fixed terminal 89 disposed in the housing 72. The L-phase fixed terminal portion 89 is fixed to one end of the L-phase fixed terminal plate 88 by, for example, caulking. The L-phase fixed terminal plate 88 extends outside the housing 72.

  In the opening / closing unit 70 configured as described above, when power is supplied to the coil 73 by an operation signal from the circuit board 120, the movable iron piece 74 is attracted and moved by the magnetic force of the coil 73 as shown in FIG. .

  Then, the trigger lever 75 rotates clockwise by one end being pushed by the movable iron piece 74, and the support lever 76 is pushed by the other end of the trigger lever 75 in the counterclockwise direction. Rotate.

  Then, one end of the operating plate 77 supported on the upper end of the support lever 76 comes off, and the operating plate 77 rotates counterclockwise by the pressing force of the pressing spring 78. At this time, the operation lever 71 is rotated by the reaction force of the pressing spring 78 and the urging force of the torsion spring 90 so that the end protrudes from the front surface of the outlet 10.

  Since the support of the operating plate 77 by the support lever 76 is released, the operating member 79 pushed and supported in the clockwise direction by the operating plate 77 rotates counterclockwise by the urging force of the press-contact spring 80. . As a result, the N-phase movable terminal plate 81 is moved by the urging force of the press-contact spring 85, and the N-phase movable terminal 82 is separated from the N-phase fixed terminal 87. Simultaneously, the L-phase movable terminal plate 83 moves so as to be lifted by being pushed by the operating member 79 that rotates in the counterclockwise direction. As a result, the L-phase movable terminal 84 is separated from the L-phase fixed terminal 89. As described above, when the N-phase movable terminal portion 82 and the L-phase movable terminal portion 84 are separated from the N-phase fixed terminal portion 87 and the L-phase fixed terminal portion 89, respectively, the switching unit 70 switches from the closed state to the open state. As a result, the power supply path to the blade receiving spring blocks 42a and 42b is cut off, and the power supplied from the outlet 10 to the load via the insertion plug is turned off. When the abnormal state is released and the operation lever 71 is manually returned from the state shown in FIG. 7 to the state shown in FIG. 6, the components inside the opening / closing unit 70 are also shown in FIG. 6 from the state shown in FIG. The state can be returned to the closed state from the open state.

  In addition, the opening / closing unit 70 is not limited to the above-described configuration, and may employ any known shutoff mechanism capable of opening and closing the power supply path.

  FIG. 8 is a perspective view of the outlet shown in FIG. 4 as viewed from the direction of arrow A (terminal side). The outlet 10 includes a terminal unit 100. The terminal unit 100 is a connection unit to which an external power supply line connected to a commercial power supply is electrically and mechanically connected.

  The terminal portion 100 includes an N-phase fixed terminal plate 86, an L-phase fixed terminal plate 88, locking springs 92 and 94, and an unlocking member 96. The N-phase fixed terminal plate 86 has a U-shaped bent N-phase power connection portion 86a at the other end extending from the housing 72 of the opening / closing unit 70. The L-phase fixed terminal plate 88 has a U-shaped bent L-phase power supply connection portion 88a at the other end extending from the housing 72 of the opening / closing unit 70. Lock springs 92 and 94 are arranged inside the power supply connection portions 86a and 88a, respectively. Thus, each of the power connection portions 86a and 88a is a so-called quick connection terminal that can be quickly connected by inserting the N-phase and L-phase external power lines from the rear.

  The unlocking member 96 can separate the locking springs 92 and 94 from the respective power supply connection portions 86a and 88a by performing a pushing operation, and as a result, the L-phase and N-phase external power supply lines are connected to the power supply connection portion 86a. , 88a.

  The terminal unit 100 includes a ground terminal 102. The ground terminal 102 includes, for example, a ground terminal plate 104 formed by punching and bending a metal plate such as a copper plate. A screw 105 is screwed into one end of the ground terminal plate 104, and an external ground wire can be connected to the ground terminal 102 using the screw 105. A grounding blade receiving spring 106 is formed on the other end of the grounding terminal plate 104. The grounding blade receiving spring 106 is disposed inside a grounding terminal insertion opening 20c formed at a lower stage of the upper cover 12a of the outlet main body cover 12. As a result, the ground terminal of the plug inserted from the ground terminal insertion opening 20c is connected to the ground terminal plate 104.

  Next, the mounting structure of the temperature sensor will be described with reference to FIGS. FIG. 9 is an exploded perspective view showing the temperature sensor mounting structure of the outlet. FIG. 10 is an assembled perspective view of the temperature sensor mounting structure of FIG. FIG. 11 is a plan view including a partial cross section showing the temperature sensor mounting structure.

  As shown in FIGS. 9 to 11, the outlet portion 40 includes an L-phase blade receiving spring block 42a, an N-phase blade receiving spring block 42b, and a body for supporting these blade receiving spring blocks 42a and 42b. And a member 44. Each of the blade receiving spring blocks 42a and 42b has a shape symmetrical with respect to a line BB, which is a center line in the width direction of the outlet portion 40. Hereinafter, the blade receiving spring block 42a will be described, but the same applies to the blade receiving spring block 42b.

  The blade receiving spring block 42 a includes two pairs of blade receiving springs 48, a connecting portion 50 for mechanically connecting and electrically connecting the blade receiving springs 48, and a longitudinal direction Y from an edge of the connecting portion 50. And a connection terminal part 52 formed by bending. The connection terminal portion 52 has a bent portion 52a bent in an L-shaped cross section. A temperature sensor 54 is attached to the bent portion 52a of the connection terminal portion 52.

  In the present embodiment, the temperature sensor 54 is clamped and fixed by the clip 56. As a result, the temperature sensor 54 is arranged in close contact with the blade receiving spring block 42a whose temperature is to be measured. The clip 56 integrally has a pair of holding pieces 56a and a connecting portion 56b connecting the holding pieces 56a. As described above, the temperature sensor 54 is clamped by the clip 56 so that the temperature sensor 54 is attached in a state in which the temperature sensor 54 is in close contact with the bent portion 52a of the connection terminal portion 52 to be measured. Thereby, the accuracy of temperature measurement by the temperature sensor 54 is improved.

  The temperature sensor 54 is preferably formed of any of a thermistor, a resistance temperature detector, and a thermocouple. Further, a heat conducting member may be interposed between the temperature sensor 54 and the bent portion 52a of the connection terminal portion 52. It is preferable that the heat conducting member is formed of a soft and thin member such as a sheet or grease having heat conductivity. By providing such a heat conducting member, the temperature sensor 54 is likely to be in close contact with the temperature measurement target, which can contribute to an improvement in temperature measurement accuracy.

  The blade receiving spring blocks 42a and 42b, the temperature sensor 54, and the clip 56 are assembled to the body member 44 as follows.

  The body member 44 formed of an insulating resin molded product has a substantially rectangular parallelepiped shape. The body member 44 has four recesses 45 defined therein. The blade receiving spring blocks 42a and 42b are assembled to the body member 44 in a state where the four pairs of blade receiving springs 48 of the blade receiving spring blocks 42a and 42b are housed in these recesses 45, respectively.

  On both side surfaces of the outer peripheral surface of the body member 44 that face each other in the width direction X, sensor housing portions 46 that are concave in a rectangular shape when viewed from the front are formed. On the inner surface of the sensor accommodating portion 46, a support rib 47 having a substantially U shape as viewed from the front is formed so as to protrude. The support rib 47 opens outward in the width direction X.

  At the time of assembling the outlet unit 40, first, as shown in FIG. 9, the temperature sensor 54 is inserted and accommodated in the sensor accommodating portion 46 of the body member 44 from the arrow C direction along the width direction X. At this time, the temperature sensor 54 is placed and supported on the support rib 47, and the signal line 60 a extending from the temperature sensor 54 is inserted into the opening of the support rib 47.

  Next, the blade receiving spring block 42a is assembled to the body member 44 such that the connection terminal portion 52 of the blade receiving spring block 42a is inserted into the sensor housing portion 46 from the direction of arrow D along the front-rear direction Y. Thus, the bent portion 52 a of the connection terminal portion 52 is disposed between the temperature sensor 54 and the wall surface of the sensor housing 46.

  In this state, the clip 56 is inserted into the sensor housing 46 from the direction of arrow C. As a result, as shown in FIGS. 10 and 11, the temperature sensor 54 is assembled in a state where the temperature sensor 54 is pressed against the bent portion 52a of the connection terminal portion 52 by the clip 56. The attachment of the temperature sensor 54 to the other blade receiving spring block 42b can be similarly performed. Accordingly, in the outlet portion 40 of the outlet 10 of the present embodiment, the clip 56 is inserted in a state where the temperature sensor 54 and the blade receiving spring blocks 42a and 42b are assembled to the body member 44, so that the clip 56 is inserted into the blade receiving spring blocks 42a and 42b. The temperature sensor 54 can be easily mounted.

  FIG. 12 is an enlarged perspective view showing a part of the terminal unit 100. As shown in FIG. 12, the outlet 10 may include a temperature measurement board 110. Temperature sensors 112a and 112b are mounted on the temperature measurement board 110. Each of the temperature sensors 112a and 112b is suitably configured by, for example, any one of a thermistor, a resistance temperature detector, and a thermocouple. The temperature sensors 112a and 112b may be provided on the temperature measurement substrate 110 by being covered with a heat conducting member. In this case, the temperature sensors 112a and 112b are in contact with the N-phase fixed terminal plate 86 and the L-phase fixed terminal plate 88, which are the targets of temperature measurement, via the heat conducting member. The heat conductive member is preferably a flexible resin having heat conductivity. Thereby, the temperature sensors 112a and 112b contact the temperature measurement target more closely, and the temperature measurement accuracy can be improved. Further, in order to further ensure electrical insulation between the N-phase fixed terminal plate 86 and the L-phase fixed terminal plate 88 to be subjected to temperature measurement, the heat conducting member is preferably an insulating resin. As a specific example, a low-hardness acrylic resin can be used for the heat conductive member. For example, a hyper-soft heat dissipation sheet (registered trademark) 6500H, 6510H, 5578H manufactured by 3M can be used.

  The temperature sensor 112b mounted on the temperature measurement substrate 110 is provided in contact with the N-phase fixed terminal plate 86, and the temperature sensor 112a mounted on the temperature measurement substrate 110 is provided in contact with the L-phase fixed terminal plate 88. Can be Then, the temperature of the N-phase fixed terminal plate 86 measured by the temperature sensor 112b is transmitted to the circuit board 120 via the signal line 114a. Further, the temperature of L-phase fixed terminal plate 88 measured by temperature sensor 112a is transmitted to circuit board 120 via signal line 114b. The power supply line 114c is connected to the temperature measurement substrate 110 adjacent to the signal lines 114a and 114b.

  The control unit 122 provided on the circuit board 120 determines whether the fixed terminal temperature measured by the temperature sensors 112a and 112b does not exceed a predetermined threshold temperature. When the temperature of at least one of the fixed terminal plates 86 and 88 exceeds a predetermined threshold temperature, the control unit 122 determines that the outlet 10 is in an overheated state, and sends an activation signal to the switching unit 70 via the signal line 60c. Send As a result, the opening / closing unit 70 operates to open the circuit, and the power supply to the blade receiving spring blocks 42a and 42b is cut off. Here, the predetermined threshold temperature may be the same value as that which is compared with the temperature measured by the temperature sensor 54 of the above-described blade receiving spring blocks 42a and 42b.

  In the outlet 10 of the present embodiment, the temperature sensors are arranged on both the blade receiving spring blocks 42a and 42b and the fixed terminal plates 86 and 88, but the temperature sensors are disposed on the blade receiving spring blocks 42a and 42b or the fixed terminal plates 86 and 88. The temperature sensor may be arranged on only one of them.

  FIG. 13 is a perspective view showing a state in which a pair of covered electric wires 140 and 142 are connected to the terminal portion 100. FIG. 14 is a perspective view similar to FIG. 13, showing a state where the inner housing member 72d of the opening / closing unit 70 is removed.

  As shown in FIGS. 13 and 14, the N-phase fixed terminal plate 86 has an N-phase power supply connection portion 86 a formed by being bent in a substantially U shape outside the opening / closing unit 70, and the L-phase fixed terminal plate 86. Reference numeral 88 denotes an L-phase power supply connection portion 88a formed by being bent in a substantially U shape outside the opening / closing unit 70. The N-phase power connection portion 86a and the L-phase power connection portion 88a are arranged at predetermined intervals in the width direction X.

  The N-phase fixed terminal plate 86 and the L-phase fixed terminal plate 88 are each integrally formed by punching and bending a metal plate such as a copper plate. The N-phase fixed terminal plate 86 integrally has an N-phase electric wire connection portion 86b. The N-phase electric wire connection portion 86b is formed by bending at the base end side of the N-phase power supply connection portion 86a. The N-phase electric wire connection portion 86b has a flat plate shape along the front-rear direction Y and the vertical direction Z, and has a through hole serving as an electric wire connection hole.

  The L-phase fixed terminal plate 88 integrally has an L-phase electric wire connection portion 88b. The L-phase electric wire connection portion 88b is bent at the base end side of the L-phase power supply connection portion 88a. The L-phase electric wire connection portion 88b has a flat plate shape along the width direction X and the vertical direction Z, and has a through hole serving as an electric wire connection hole. Thereby, the L-phase electric wire connection portion 88b is formed in a direction orthogonal to the N-phase electric wire connection portion 86b.

  One ends of a pair of electric wires are connected to the N-phase electric wire connection portion 86b and the L-phase electric wire connection portion 88b. The pair of electric wires is an N-phase covered electric wire 140 and an L-phase covered electric wire 142. Each of the electric wires 140 and 142 is covered with an insulating coating except for both ends. One end of the N-phase covered electric wire 140 is connected to the N-phase electric wire connection portion 86b by soldering or the like. The other end of the N-phase covered electric wire 140 is connected to the circuit board 120 by soldering or the like. One end of the L-phase covered electric wire 142 is connected to the L-phase electric wire connection portion 88b by soldering or the like. The other end of the L-phase covered electric wire 142 is connected to the circuit board 120 by soldering or the like. Thus, the circuit board 120 can receive the driving power via the pair of covered electric wires 140 and 142.

  As shown in FIG. 14, the L-phase electric wire connection portion 88b is covered by the electric wire isolation portion 72f. As a result, the N-phase coated electric wire 142 derived from the N-phase electric wire connection portion 86b and the L-phase coated electric wire 140 derived from the L-phase electric wire connection portion 88b are isolated by the electric wire isolation portion 72f.

  In the present embodiment, the housing 72 of the opening / closing unit 70 is formed in a housing shape by combining an inner housing member 72d on the side where the outlet portion 40 is arranged and an outer housing member 72e on the opposite side. The electric wire isolation part 72f is formed on the side of the housing 72 of the opening / closing unit 70 facing the terminal part 100. More specifically, the wire isolating portion 72f is formed integrally with the inner housing member 72d, and has a substantially L-shape when viewed from the vertical direction Z. Thus, the wire isolating portion 72f is provided so as to cover the front and side surfaces of the L-phase wire connecting portion 88b. One end of the L-phase covered electric wire 140 is drawn out rearward from the L-phase electric wire connection portion 88b. Therefore, the wire isolating portion 72f can be placed so as to cover the L-phase wire connecting portion 88b in a state of being close to the front surface.

  In the present embodiment, an example is described in which the electric wire isolation portion 72f is formed integrally with the inner housing member 72d of the opening / closing unit 70, but the invention is not limited to this. The electric wire isolation portion may be formed integrally with the outer housing member 72e of the opening / closing unit 70, or may be formed integrally with the body member 44.

  As described above, in the outlet of the present embodiment, the terminal unit 100 to which the pair of power supply lines for supplying electric power from the commercial power supply are connected, and the pair of insulated wires 140 and 142 derived from the terminal unit 100 are connected. An opening / closing unit 70 having an opening / closing section for opening / closing a power supply path. The terminal portion 100 has a pair of wire connection portions 86b and 88b to which the pair of covered wires 140 and 142 are connected, respectively, and is drawn out from the one wire connection portion 88b by covering the one wire connection portion 88b. It further includes a wire isolating portion 72f for isolating one of the covered wires 142 from the other covered wire 140 derived from the other wire connecting portion 86b.

  According to this configuration, the pair of covered electric wires 140 and 142 are isolated in a state where the electric wire connection portion 88b is covered by the electric wire isolation portion 72f. Accordingly, it is possible to prevent the one coated electric wire 140 derived from the electric wire connection portion 86b from coming into contact with the edge of the other electric wire connection portion 88b and damage the insulating coating. As a result, a short circuit between the pair of covered electric wires 140 and 142 can be suppressed, and reliability is improved.

  In the method for producing the outlet 10 according to the present embodiment, the terminal portion 100 to which the pair of power supply lines for supplying electric power from the commercial power supply is connected, and the pair of covered electric wires 140 and 142 derived from the terminal portion 100 are connected. And an opening / closing unit 70 having an opening / closing section for opening / closing a power supply path. In this production method, a pair of covered electric wires 140 and 142 are connected to a pair of electric wire connection portions 86b and 88b provided in the terminal portion 100, respectively, and one of the electric wire connection portions 72f is provided in the opening / closing unit. Covering 88b, one coated electric wire 140 derived from one electric wire connection portion 88b is isolated from the other coated electric wire 142 derived from the other electric wire connection portion 86b. According to this production method, it is possible to suppress that one of the covered electric wires 140 led out from the electric wire connection portion 86b comes into contact with the edge of the other electric wire connection portion 88b to damage the insulating coating. As a result, a short circuit between the pair of covered electric wires 140 and 142 can be suppressed, and reliability is improved.

  It should be noted that the wiring device and the method for producing the same according to the present disclosure are not limited to the above-described embodiment and its modifications, and various modifications and improvements may be made within the scope of the matters described in the claims of the present application. Is of course possible.

  DESCRIPTION OF SYMBOLS 1 Mounting frame, 2 upper board parts, 3 lower board parts, 4 crosspieces, 5 openings, 6 engaging holes, 10 socket outlets (wiring equipment), 12 socket body cover, 12a upper cover, 12b lower cover, 13 Mounting pin, 14 outlet outer cover, 14a opening (of outlet outer cover), 14b through hole, 14c power light hole, 14d abnormal light hole, 15 mounting hole, 16 case, 17 main cover member, 17a front wall, 17b side wall , 17c Opening (of the main cover member), 17d Operation piece, 17e Terminal cover, 18a, 18b Blade insertion section, 19 Opening (of the main cover), 20a, 20b Blade insertion opening, 20c Ground terminal insertion Mouth, 21 locking piece, 22 engaging portion, 23 locking portion (of main cover member), 24 bottom surface, 26 pillar portion, 29 support protrusion portion, 40 Indent portion, 42a, 42b Blade receiving spring block, 44 body member, 44a rear surface, 45 concave portion, 46 sensor accommodating portion, 47 supporting rib, 50 connecting portion, 51 hook portion, 52 connecting terminal portion, 52a bent portion, 53 supporting surface , 54 temperature sensor, 54a L-phase conductor, 54b N-phase conductor, 55 second engaging portion, 56 clip, 56a holding piece, 56b connecting portion, 57 engaging surface, 60a, 60b, 60c signal line, 70 opening / closing unit, 71 operating lever, 72 housing, 72d inner housing member, 72e outer housing member, 72f electric wire isolation part, 73 coil, 74 movable iron piece, 75 trigger lever, 75a, 76a, 79a shaft part, 76 support lever, 77 operating plate, 79 Operating member, 81 N-phase movable terminal plate, 82 N-phase movable terminal section, 83 L-phase movable terminal Board, 83a one end, 84 L-phase movable terminal, 86 N-phase fixed terminal, 86a N-phase power supply connection, 86b N-phase wire connection, 87 N-phase fixed terminal, 88 L-phase fixed terminal, 88a L-phase Power connection unit, 88b L-phase electric wire connection unit, 89 L-phase fixed terminal unit, 96 unlocking member, 100 terminal unit, 101 terminal box, 102 grounding terminal, 104 grounding terminal plate, 110 temperature measurement board, 112a, 112b temperature sensor, 114a, 114b signal line, 114c power line, 120 circuit board, 122 control unit, 130 switch panel, 132 push switch, 134 power light emitting unit, 136 abnormal light emitting unit, 140 L phase covered electric wire (pair of Covered wire), 142 N-phase covered wire (pair of covered wires).

Claims (3)

A terminal portion to which a pair of power supply lines for supplying power from a commercial power supply are connected,
A pair of insulated wires derived from the terminal portion are connected, and an opening / closing portion for opening and closing the power supply path, or a functional unit having a blade receiving portion into which a plug blade of an insertion plug is inserted. An appliance,
The terminal portion has a pair of wire connection portions to which the pair of covered wires are respectively connected, and one covered wire derived from the one wire connection portion by covering at least one wire connection portion. A wiring device, further comprising a wire isolating portion for isolating the other insulated wire derived from the other wire connecting portion from the other wire.   The wiring device according to claim 1, wherein the wire isolating portion is provided on a side of the functional unit facing the terminal portion. A terminal portion to which a pair of power supply lines for supplying power from a commercial power supply are connected,
A pair of insulated wires derived from the terminal portion are connected, and an opening / closing portion for opening and closing the power supply path, or a functional unit having a blade receiving portion into which a plug blade of an insertion plug is inserted. A method of producing an appliance,
The pair of covered electric wires are respectively connected to a pair of electric wire connection portions provided in the terminal portion,
Covering at least one wire connection portion with a wire isolation portion provided in the functional unit, one covered wire derived from the one wire connection portion and the other covered wire derived from the other wire connection portion. Isolation, the method of producing wiring equipment.

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