JP2019175812A - Manufacturing method of electric outlet and the electric outlet - Google Patents

Abstract

To provide a manufacturing method of an electric outlet, capable of reducing a manufacturing cost and improving productivity by sharing a plurality of components against a plurality of abnormalities.SOLUTION: In a manufacturing method of an electric outlet which is commonly formed with at least one component to a plurality of abnormalities, a substrate 120 in which a circuit for detecting any abnormality is mounted is selected. Sequentially, a switching unit 70 shred to the plurality of abnormalities is connected to the substrate 120. Next, knife bearing blocks 42a and 42b and a terminal part 100 for connecting an external power source line are electrically connected to the switching unit 70, respectively. The substrate 120, the switching unit 70, the terminal part 100, and the knife bearing blocks 42a and 42b are housed in a common case, and a cover member is provided by covering an opening part of the case.SELECTED DRAWING: Figure 6

Description

  The present disclosure relates to an outlet manufacturing method and an outlet.

  Conventionally, Patent Document 1 describes an outlet including at least one pair of plug connection portions and a shut-off mechanism portion that blocks power supply to the plug connection portion. This outlet has a detection unit that detects tracking generated between the plug blades of the plug, and when an abnormality is detected by this detection unit, the blocking mechanism is activated to connect the plug connection unit. The power supply to is cut off.

JP 2007-42407 A

  In addition to the power outlet being cut off when the tracking is detected, the power supply to the plug is cut off, and the power supply to the plug connection is detected when an abnormality such as overheating of the outlet or an earthquake is detected. May be configured to block. In that case, the outlet is configured using different dedicated parts for each abnormality such as tracking, overheating, and vibration. This is because different housings, covers, electronic components, terminal portions, and the like are provided, which increases the manufacturing cost of the outlet and decreases the productivity.

  An object of the present disclosure is to provide an outlet manufacturing method and an outlet that can reduce manufacturing costs and improve productivity by sharing a plurality of parts for a plurality of abnormalities.

  The method for manufacturing an outlet according to one aspect of the present disclosure is a method for manufacturing an outlet in which at least one component is shared for a plurality of abnormalities. In this manufacturing method, a substrate on which a circuit for detecting any abnormality is mounted is selected, and power supply to a load can be turned on / off. Connect via signal line. A blade receiving member into which the plug blade of the plug is inserted and removed and a terminal portion for connecting an external power supply line are electrically connected to the open / close unit, respectively. And a board | substrate, an opening / closing unit, a terminal part, and a blade receiving member are accommodated in a common case, and a cover member is provided to cover the opening of the case.

  The outlet according to another aspect of the present disclosure is an outlet in which at least one component is shared for a plurality of abnormalities. This outlet can turn on / off the power supply to the board on which a circuit for detecting any abnormality is mounted, and is connected to the board via a signal line, and is shared for a plurality of abnormalities. An opening / closing unit, a blade receiving member that is electrically connected to the opening / closing unit and into which the plug blade of the plug is inserted, a terminal portion that is electrically connected to the opening / closing unit and connects an external power supply line, and a substrate A case that houses the opening / closing unit, the terminal portion, and the blade receiving member, and a cover member that covers the opening of the case.

  According to the outlet manufacturing method and the outlet according to the present disclosure, since the opening / closing unit, the case, the cover member, and the like can be shared, it is possible to cope with various abnormalities only by changing the circuit in order to detect the abnormalities. The outlet can be easily manufactured at low cost.

It is a whole perspective view of the outlet socket installed with the decorative cover. It is a front view of an outlet socket. It is a disassembled perspective view of the outlet shown with the outlet main body cover and the outlet outer cover removed. It is a front view of the outlet shown with the outlet body cover and the outlet outer cover removed. FIG. 5 is an exploded perspective view showing the outlet shown in FIG. 4 with a case removed. FIG. 6 is a perspective view showing a state where the body member and the opening / closing unit housing are removed from the outlet shown in FIG. 5. It is a side view of the opening-closing unit in an open circuit state. It is a side view of the opening / closing unit in a closed state. It is a perspective view which shows the terminal part of an outlet socket in a partially exploded state. It is a perspective view which shows the temperature sensor attachment structure of an outlet socket. It is a partially notched top view which shows the temperature sensor attachment structure of FIG. It is a disassembled perspective view which shows a blade receiving spring block and a body member. It is a perspective view which shows the state in which one blade receiving spring block was assembled | attached to the body member. It is a disassembled perspective view which shows one blade receiving spring block and a body member. It is a perspective view which expands and shows a part of terminal part.

  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 examples for facilitating understanding of the present disclosure, and can be appropriately changed according to the application, purpose, specification, and the like. In addition, when a plurality of embodiments and modifications are included in the following, it is assumed from the beginning that these characteristic portions are used in appropriate combinations.

  FIG. 1 is an overall perspective view of an outlet 10 installed with a decorative cover. FIG. 2 is a front view of the outlet 10. 1 and 2 (the same applies to other drawings), the arrow X indicates the width direction (or left-right direction), the arrow Y indicates the front-rear direction (or depth direction), and the arrow Z indicates the up-down direction (or height direction). Is shown. These three directions are orthogonal to each other. 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 formed in a rectangular parallelepiped having a vertically long shape when viewed from the front. The size of the outlet 10 is formed to a size specified in the JIS standard. The outlet 10 is installed in a state of being embedded in a wall or the like, for example.

  A decorative cover 2 having a rectangular frame shape is disposed around the front surface of the outlet 10. The decorative cover 2 is made of, for example, a resin molded product. The decorative cover 2 is provided around the front surface of the outlet 10 so that a hole formed in the wall of the outlet 10 and a fitting (not shown) for attaching the outlet 10 to the hole cannot be seen from the outside. It is a member for improving.

  FIG. 3 is an exploded perspective view of the outlet 10 with the outlet main body cover and the outlet outer cover removed. As shown in FIGS. 1 to 3, the outlet 10 includes an outlet body cover (cover member) 12 and an outlet outer cover (cover member) 14. Both the outlet main body cover 12 and the outlet outer cover 14 are formed of a resin molded product.

  The outlet body cover 12 is disposed so as to cover the front surface of the outlet 10. The outlet body cover 12 includes an upper cover 12a and a lower cover 12b. The upper cover 12a is provided so as to cover the front of a blade receiving spring block housed in a case described later.

  In the upper cover 12a, plug blade insertion portions 18a and 18b are arranged in two upper and lower stages. In the upper blade insertion portion 18a, plug blade insertion ports 20a and 20b into which two plate-shaped blades of insertion plugs (not shown) are inserted are formed side by side in the left-right direction. The lower blade insertion portion 18b has plug blade insertion ports 20a and 20b into which two plug blades of the insertion plug are inserted side by side, and the plug blade insertion ports 20a and 20b. A ground terminal insertion port 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 plug blade insertion opening 20a is formed in a substantially D-shaped frame shape in front view, and the opening edge of the other plug blade insertion opening 20b is formed in a rectangular frame shape. An example is shown. However, it is not limited to this, The opening edge part of each plug blade insertion opening 20a, 20b may be formed in the same shape.

  A lower cover 12b constituting a part of the outlet body cover 12 is provided so as to cover the terminal portion 100 housed in the case. On the surface of the lower cover 12b, characters “earth” and “open”, a mark indicating grounding, and the like are attached. The lower cover 12b is detachably attached to the upper cover 12a. Specifically, the attachment is made by inserting the two attachment pins 13 formed integrally with the lower cover 12b into the attachment holes 15 formed in the upper cover 12a. By removing the lower cover 12b from the outlet 10, the grounding terminal portion of the terminal portion 100 is exposed. Thereby, the outlet 10 is in a state in which a grounding external electric wire can be connected.

  The outlet outer cover 14 is formed in a U-shape when viewed from the front, and is disposed adjacent to the upper, left, and lower three sides of the outlet body cover 12. 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 is formed with an opening 14a having a vertically long rectangular shape and a circular through hole 14b positioned above the opening 14a. The operation lever 71 of the opening / closing unit 70 is exposed in the opening 14a. In addition, a push switch mounted on a substrate to be described later is disposed inside (that is, behind) the through hole 14b. Accordingly, for example, a push switch can be pressed by inserting a thin rod-shaped tool, the tip of a pen, or the like into the through hole 14b.

  In the outlet outer cover 14, “power supply” and “abnormal” are displayed above the through holes 14 b. The area above the display “power” is a power lamp portion 14c that is lit green, for example, when power is supplied to the outlet 10, and the area above the display “abnormal” is lit or blinks red, for example, when the outlet 10 is abnormally heated. This is an abnormal light portion 14d. The power lamp portion 14c and the abnormal lamp portion 14d are light-transmitting portions that transmit light through the wall surface of the outlet outer cover 14, but may be formed as light-transmitting windows each including a through hole.

  FIG. 4 is a front view of the outlet 10 with the outlet body cover 12 and the outlet outer cover 14 removed. FIG. 5 is an exploded perspective view showing the outlet 10 shown in FIG. 4 with the case 16 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, and has a shape having a bottom surface at the rear and opening 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. When the hook portion (not shown) of the outlet body cover 12 is engaged with these engaging portions 22, the outlet body cover 12 is attached to the case 16.

  As shown in FIG. 5, two column portions 26 are erected on the bottom surface 24 of the case 16 with an interval in the vertical direction Z. A space 28 for accommodating the opening / closing unit 70 is defined between the column portions 26 and the case inner surface 25a on one side in the width direction X. A space 30 for accommodating the blade receiving spring unit 40, the substrate 120, and the like is defined between the column portion 26 and the case inner surface 25b on the other side.

  In addition, a partition wall portion 27 that is L-shaped in a front view as viewed from the front is formed on the lower portion of the bottom surface 24 of the case 16 so as to protrude. The partition wall 27 defines a space 32 in the case 16 in which the terminal portion 100 is accommodated.

  A plurality of support protrusions 29 protrude from the bottom surface 24 of the case 16. The substrate 120 accommodated in the case 16 is supported by the front end surfaces of the support protrusions 29.

  6 is a perspective view showing a state where the body member and the opening / closing unit housing are removed from the outlet shown in FIG. As shown in FIGS. 4 to 6, the outlet 10 includes a blade receiving spring unit 40, an opening / closing unit 70, and a substrate 120. Further, the outlet 10 may include a grounding terminal portion 102.

  The blade receiving spring unit 40 includes two blade receiving spring blocks 42a and 42b, a body member 44 that supports these blade receiving spring blocks 42a and 42b, and the blade receiving spring blocks 42a and 42b pressed against the body member 44. And a fixing member 46 that is fixed in a state. The body member 44 and the fixing member 46 are preferably configured by an insulating resin molded product. The blade receiving spring blocks 42 a and 42 b may be held and fixed by being sandwiched by a pair of claw portions (not shown) provided on the body member 44.

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

  Each blade receiving spring block 42a, 42b can have the same shape. Therefore, in the following, 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 omitted as appropriate with the aid of assistance.

  The blade receiving spring block 42a includes two pairs of blade receiving springs 48, a connecting portion 50 that mechanically connects and electrically connects each blade receiving spring 48, and an edge of the connecting portion 50 along the front-rear direction. The connecting terminal part 52 formed by bending is integrally formed.

  In the L-phase blade receiving spring block 42a, the pair of blade receiving springs 48 are arranged inside the plug blade insertion opening 20a formed on the upper right side of the upper cover 12a. The other pair of blade receiving springs 48 are disposed inside the plug blade insertion opening 20a formed on the lower right side of the upper cover 12a (see FIG. 2).

  In the blade receiving spring block 42b for the N phase, the pair of blade receiving springs 48 are disposed inside the plug blade insertion opening 20b formed on the left side of the upper stage of the upper cover 12a. The other pair of blade receiving springs 48 is disposed inside the plug blade insertion opening 20b formed on the lower left side of the upper cover 12a (see FIG. 2).

  As shown in FIG. 6, one end of an L-phase conducting wire 54a is connected to the connection terminal portion 52 of the blade receiving spring block 42a for L-phase by soldering or the like. Further, one end of an N-phase conductor 54b is connected to the connection terminal portion 52 of the blade receiving spring block 42b for N-phase by soldering or the like. The L-phase conducting wire 54a and the N-phase conducting wire 54b are preferably configured by, for example, a braided copper wire with an insulation coating. The other ends of the L-phase conducting wire 54a and the N-phase conducting wire 54b are connected to the opening / closing unit 70, respectively.

  Further, temperature sensors 54 are respectively attached to the connection terminal portions 52 of the blade receiving spring blocks 42a and 42b by clips 56 (see FIG. 11). The mounting structure of the temperature sensor 54 will be described in detail later. The temperature sensor 54 measures the temperatures of the blade receiving spring blocks 42a and 42b, and transmits the measurement results to the substrate 120 via the signal lines 60a and 60b.

  The substrate 120 is a circuit board on which a pattern wiring (not shown) is formed. On the substrate 120, for example, a control device including a microcomputer is mounted. Based on the measurement result transmitted from the temperature sensor 54, the control device determines whether or not the temperature of the blade receiving spring blocks 42 a and 42 b exceeds a predetermined threshold value. Then, when the temperature of at least one of the blade receiving spring blocks 42a and 42b exceeds a predetermined threshold temperature, the control device determines that the outlet 10 is in an overheated state, and operates the opening / closing unit described later via the signal line 60c. Send a signal.

  Here, the predetermined threshold temperature can be set to 100 ° C. to 150 ° C., for example. The predetermined threshold temperature can be set according to the heat resistant temperature of the resin material constituting the outlet body cover 12 and the body member 44 of the outlet 10. Further, the predetermined threshold temperature may be changed according to the environmental temperature (or ambient temperature) where the outlet 10 is used. Further, a buzzer device may be mounted on the substrate 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 device turns on or blinks the abnormal lamp light emitting unit 136 and sounds the buzzer device. A notification operation may be performed. Furthermore, for example, melamine resin, urea resin, polybutylene terephthalate (PBT), or the like is suitably used as a resin material constituting the cover member such as the outlet body cover 12 and the body member 44.

  As shown in FIG. 6, two signal lines 62 a and 62 b extend from the back surface of the substrate 120. Even if a signal indicating a measurement result by the temperature sensor 54 or an operating state (on / off state) of the opening / closing unit 70 is transmitted to the power control device or the distribution board outside the outlet 10 via these signal lines 62a and 62b. Good.

  In the present embodiment, the substrate 120 is described as an example having a function of detecting an overheated state of the outlet 10 as an abnormality, but is not limited thereto. The outlet may have a seismic function that shuts off the power supply when an earthquake having a predetermined seismic intensity or more is detected as abnormal. In this case, the seismic intensity may be constituted by a seismic sensor capable of detecting acceleration, such as a gyro sensor, which is installed on the substrate or other part inside the outlet. The seismic sensor is connected to a control device on the board via a pattern wiring or a signal line on the board. The control device outputs an operation signal to the opening / closing unit 70 when it is determined that the earthquake is greater than a predetermined seismic intensity based on the input from the seismic sensor. Moreover, the outlet according to the present disclosure may be provided with such a seismic detection function and the above-described overheat detection function, or may be provided with a seismic function alone. Furthermore, the outlet according to the present disclosure may include a leakage detection function for cutting off a current when an leakage is detected as an abnormality in combination with the above-described overheating or seismic sense or alone. What is necessary is just to set it as the structure which provides an electric current sensor in an outlet socket in order to detect an electric leakage, and operates an opening-and-closing unit when the electric current which flows through a blade receiving spring block exceeds a predetermined threshold current value.

  Even in an outlet having such a seismic detection function and a leakage detection function, outlet components other than the substrate can be shared, so that the productivity of the outlet can be improved and the manufacturing cost can be suppressed.

  As shown in FIG. 6, the outlet 10 includes a switch panel 130. A push switch 132 is mounted on the switch panel 130. The push switch 132 is disposed inside the through hole 14b of the outlet outer cover 14 (see FIGS. 1 to 3). Accordingly, the push switch 132 can be pressed from the outside of the outlet 10 through the through hole 14b. The switch panel 130 is connected to the substrate 120 via a signal line. When the push switch 132 is pressed, an operation signal is transmitted from the substrate 120 to the opening / closing unit 70 described later. As a result, the open / close unit 70 is switched from the closed state to the open state, and the push switch 132 enters a blinking state indicating an abnormality. By pressing the push switch 132 in this way, it is possible to test whether or not the outlet 10 operates normally. Further, by pressing the push switch 132, it is possible to stop the buzzer device that notifies overheating.

  On the switch panel 130, a power lamp light emitting unit 134 and an abnormal lamp light emitting unit 136 are mounted. The power lamp light emitting part 134 is disposed to face the inside of the power lamp part 14c of the outlet outer cover 14, and the abnormal lamp light emitting part 136 is disposed to face the inside of the abnormal lamp part 14d of the outlet outer cover 14. (See FIG. 2). The power lamp light emitting unit 134 is preferably configured by, for example, a light emitting diode (LED) that emits green light. The abnormal lamp light emitting unit 136 is preferably configured by, for example, a light emitting diode (LED) that emits red light. The power lamp light-emitting unit 134 is turned on when the outlet 10 is in a power supply state. The abnormal lamp light emitting unit 136 is turned on or blinks when abnormal heat generation is detected in the outlet 10, as will be described later. Since the lighting states of these light emitting units 134 and 136 are visible from the outside of the outlet 10, the light emitting units 134 and 136 constitute a part of the notification unit.

  Next, the opening / closing unit 70 will be described with reference to FIGS. FIG. 7 is a side view of the opening / closing unit 70 in a closed state. FIG. 8 is a side view of the opening / closing unit 70 in the open circuit state. 7 and 8, the opening / closing unit 70 is shown in a state in which the wall surface of the housing that covers the outside in the width direction is removed.

  As shown in FIG. 7, the opening / closing unit 70 has a housing 72. A front surface of the housing 72 is rotatably provided with the operation lever 71 exposed.

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

  The coil 73 is supplied with power in response to an operation signal from the substrate 120. Thereby, the coil 73 generates 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 the rear of the coil 73 (downward in FIG. 7). The movable iron piece 74 is fixed to one end 83 a of the N-phase movable terminal plate 83. Note that the other end of the N-phase conducting wire 54b is electrically and mechanically connected to one end 83a of the N-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 about a shaft portion 75a. One end of the trigger lever 75 is disposed at a position where it can engage 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 about a shaft portion 76 a. One end of the support lever 76 is disposed at a position where it can engage with the other end of the trigger lever 75.

  The actuating plate 77 is supported with one end abutting on the other end of the support lever 76. 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 operating lever 71, and one end of the operating plate 77 is above the other end of the support lever 76 by the pressing force of the pressing spring 78. Is in pressure contact.

  A torsion spring 90 is disposed around the rotation center of the operation lever 71. As will be described later, when the opening / closing unit 70 is operated to be in a power cut-off state, the operation lever 71 is rotated by the biasing force of the torsion spring 90 and protrudes to the front surface of the outlet 10 as shown in FIG. Become.

  As shown in FIG. 7, the actuating member 79 is disposed adjacent to the support lever 76 and the actuating plate 77, and is provided on the side wall in the width direction of the housing 72 so as to be rotatable about the shaft portion 79 a. A rear end portion (lower end portion in FIG. 7) of the actuating member 79 is biased by a press contact spring 80. As a result, the actuating member 79 is urged by the pressure contact spring 80 in a direction to rotate counterclockwise in FIG.

  The actuating member 79 is provided such that a substantially central portion in the front-rear direction Y can be engaged with the L-phase movable terminal plate 81. One end of the L-phase movable terminal plate 81 is electrically and mechanically connected to the other end of the L-phase conducting wire 54a by soldering or the like. In addition, an L-phase movable terminal portion 82 is fixed to the other end of the L-phase movable terminal plate 81 by caulking or the like, for example.

  The L-phase movable terminal plate 81 is held by the operating member 79 at a position rotated in the clockwise direction against the urging force of the pressure contact spring 85. As a result, when the actuating member 79 is rotated counterclockwise by the urging force of the press contact spring 80 as will be described later, the L-phase movable terminal plate 81 is released from being pressed by the actuating member 79, so that the press contact spring 85. It can be pushed up by the urging force.

  Further, the actuating member 79 presses an intermediate portion of the N-phase movable terminal plate 83. An N-phase movable terminal portion 84 is fixed to the other end of the N-phase movable terminal plate 83 by caulking, for example. As will be described later, when the actuating member 79 rotates counterclockwise, the N-phase movable terminal plate 83 is pushed up by the rear end portion (lower end portion in FIG. 7) of the actuating member 79 and the N-phase movable terminal portion 84. Is moved forward (upward in FIG. 7).

  As shown in FIG. 7, the L-phase movable terminal portion 82 is in contact with and electrically connected to the L-phase fixed terminal portion 87 disposed in the housing 72. The L-phase fixed terminal portion 87 is fixed to one end portion of the L-phase fixed terminal plate 86 by caulking, for example. The L-phase fixed terminal plate 86 extends to the outside of the housing 72.

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

  In the open / close unit 70 configured as described above, when electric power is supplied to the coil 73 by the operation signal from the substrate 120, the movable iron piece 74 is attracted by the magnetic force of the coil 73 as shown in FIG. Move to.

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

  Then, one end portion of the operating plate 77 supported by the upper end of the support lever 76 is removed, so that the operating plate 77 is pushed into a state inclined backward (downward in FIG. 8) 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 biasing force of the torsion spring 90 so that the end protrudes from the front surface of the outlet 10.

  When the support lever 76 of the operating plate 77 is disengaged from the support lever 76, the operating member 79 pushed and supported clockwise by the operating plate 77 is rotated counterclockwise by the biasing force of the pressure contact spring 80. . As a result, the L-phase movable terminal plate 81 is moved by the biasing force of the pressure spring 85, and the L-phase movable terminal portion 82 is separated from the L-phase fixed terminal portion 87. At the same time, the N-phase movable terminal plate 83 moves so as to be lifted by being pushed by the actuating member 79 that rotates counterclockwise. As a result, the N-phase movable terminal portion 84 is separated from the N-phase fixed terminal portion 89. Thus, the L-phase movable terminal portion 82 and the N-phase movable terminal portion 84 are separated from the L-phase fixed terminal portion 87 and the N-phase fixed terminal portion 89, respectively, so that the switching unit 70 is switched from the closed state to the open state. As a result, the power supply 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 plug is turned off. When the abnormal state is released and the operation lever 71 is manually returned from the state shown in FIG. 8 to the state shown in FIG. 7, the components in the opening / closing unit 70 are also shown in FIG. 7 from the state shown in FIG. It returns to a state and can return from an open circuit state to a closed circuit state.

  The opening / closing unit 70 is not limited to the one having the above-described configuration, and any known circuit breaker mechanism may be used.

  FIG. 9 is a perspective view showing the terminal portion 100 of the outlet 10 in a partially exploded state. The outlet 10 includes a terminal unit 100. The terminal part 100 is a connection part to which an external power supply line is electrically and mechanically connected.

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

  The unlocking member 96 can push the lock springs 92 and 94 away from the respective phase connection portions 86a and 88a by pushing in. As a result, the connection terminals of the L-phase and N-phase external power supply lines are connected to the connection portions. It can be removed from 86a, 88a.

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

  FIG. 10 is a perspective view showing the temperature sensor mounting structure of the outlet. 11 is a partially cutaway plan view showing the temperature sensor mounting structure of FIG. FIG. 12 is an exploded perspective view showing the blade receiving spring blocks 42 a and 42 b and the body member 44. 10 to 12, the illustration of the fixing member 46 constituting the blade receiving spring unit 40 is omitted.

  As shown in FIGS. 10 to 12, the blade receiving spring unit 40 supports an L-phase blade receiving spring block 42a, an N-phase blade receiving spring block 42b, and these blade receiving spring blocks 42a and 42b. And a body member 44. Each blade receiving spring block 42 a, 42 b has a symmetrical shape with respect to the BB line that is the center line in the width direction of the blade receiving spring unit 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 that mechanically connects and electrically connects each blade receiving spring 48, and an edge of the connecting portion 50 along the front-rear direction Y. And a connecting terminal portion 52 formed by bending. A temperature sensor 54 is attached to the connection terminal portion 52.

  In the present embodiment, the temperature sensor 54 is sandwiched and fixed by a clip 56 that is an example of a pressing member. Thus, the temperature sensor 54 is disposed in close contact with the blade receiving spring block 42a that is a temperature measurement target. The clip 56 integrally includes a pair of holding pieces 56a and a connecting portion 56b that connects the holding pieces 56a.

  In this manner, the temperature sensor 54 is sandwiched between the clips 56, so that the temperature sensor 54 is attached in close contact with the connection terminal portion 52 that is a temperature measurement target. Thereby, the temperature measurement accuracy by the temperature sensor 54 is improved. Further, the blade receiving spring blocks 42 a and 42 b can be easily assembled to the body member 44 with the temperature sensor 54 attached to the connection terminal portion 52 with the clip 56.

  The temperature sensor 54 is preferably composed of any one of a thermistor, a resistance temperature detector, and a thermocouple. In this case, the clip 56 is configured to temperature any one of the thermistor, the resistance temperature detector, and the thermocouple. It is attached in close contact with the connection terminal portion 52 to be measured. Further, a heat conducting member may be interposed between the temperature sensor 54 and the connection terminal portion 52. The heat conducting member is preferably composed 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 closer contact with the temperature measurement object, which can contribute to improvement of temperature measurement accuracy.

  In the present embodiment, the example in which the clip 56 is used as the pressing member for pressing the temperature sensor 54 and bringing the temperature sensor 54 into close contact with the connection terminal portion 52 that is a temperature measurement target is described, but the present invention is not limited thereto. . Instead of the clip 56, the temperature sensor may be pressed against the temperature measurement object using an urging member such as a coil spring or a leaf spring.

  FIG. 13 is a perspective view showing a state in which one blade receiving spring block 42 a is assembled to the body member 44. FIG. 14 is an exploded perspective view showing one blade receiving spring block 42 a and the body member 44. 13 and 14, the temperature sensor 54 and the clip 56 are not shown.

  As shown in FIG. 13 and FIG. 14, the blade receiving spring block (blade receiving member) 42 a includes two pairs of blade receiving springs 48 and a connecting portion that mechanically connects and electrically connects each blade receiving spring 48. 50 and a connection terminal portion 52 that is bent along the front-rear direction Y from the edge portion of the coupling portion 50. The blade receiving spring 48 includes a pair of blade receiving pieces facing each other. The tip of each blade receiving piece is bent outward so as to open in a substantially V shape. As a result, the plug blade of the plug is reliably received between the pair of blade receiving pieces.

  In addition, the blade receiving spring block 42a integrally includes U-shaped bent spring portions 49 provided on both sides of the blade receiving spring 48 including a pair of blade receiving pieces. The bending spring portion 49 has a bending portion 49a on the same side as the distal end portion of the pair of blade receiving pieces, and has a pair of extending portions 49b extending from the bending portion 49a toward the base end portions of the pair of blade receiving pieces. is doing.

  The blade receiving spring block 42 a is housed and disposed in the body member 44. The body member 44 is formed so as to partition the four recesses 45. Two ribs 47a are formed on the wall surface located on the center side in the width direction X among the inner wall surfaces defining the recess 45 so as to extend in the front-rear direction Y with a space therebetween. The strength of the body member 44 can be increased by these ribs 47a.

  Further, among the inner wall surfaces that define the recess 45, ribs 47b are formed to face each other on the inner wall surface facing the vertical direction Z. As shown in FIG. 13, these ribs 47 b are formed of a pair of extending portions of a bending spring portion 49 positioned on both sides in the vertical direction Z of the blade receiving spring 48 when the blade receiving spring block 42 a is assembled to the body member 44. 49b is sandwiched between them. Further, the bent portion 49a of the bent spring portion 49 is in contact with the end portion of the rib 47b.

  As described above, the blade receiving spring block 42a is accurately positioned with respect to the body member 44 by the bending portion 49a of the bending spring portion 49 being assembled in contact with the end of the rib 47b formed on the body member 44. Can be assembled. Further, since the pair of extending portions 49 b of the bending spring portion 49 sandwich the rib 47 b, the blade receiving spring block 42 a can be firmly assembled to the body member 44.

  In addition, when a force in the width direction X acts on the insertion plug inserted into and removed from the outlet 10, the pair of blade receiving pieces are plastically deformed so as to open abnormally, and the contact pressure between the plug blade and the blade receiving piece is reduced. May become weaker. Then, spark discharge or the like due to poor contact may occur, which may cause abnormal overheating. On the other hand, in the outlet 10 of the present embodiment, the rib 47b is sandwiched between the bending spring portion 49 formed integrally with the blade receiving spring 48, so that even if the above opening force acts, It is possible to prevent or suppress the blade receiving spring 48 made of the blade receiving piece from abnormally opening and deforming.

  In the present embodiment, the example in which the ribs 47b are respectively formed on the two inner wall surfaces facing the vertical direction Z of the concave portion 45 and sandwiched by the bending spring portions 49 has been described. However, the present invention is not limited to this. A rib formed on the inner wall surface in the front-rear direction Y of the concave portion 45 (that is, the bottom surface of the concave portion 45) may be sandwiched between a pair of extending portions of the bending spring portion 49, or a rib formed on the bottom surface may be formed. It is good also as a structure clamped by the base end part (namely, edge part on the opposite side to a front-end | tip part) of a pair of blade receiving piece.

  FIG. 15 is an enlarged perspective view showing a part of the terminal portion. As shown in FIG. 15, a printed circuit board 110 for temperature measurement may be provided. Temperature sensors 112 a and 112 b are mounted on the printed circuit board 110. The temperature sensors 112a and 112b are preferably configured by any of a thermistor, a resistance temperature detector, and a thermocouple, for example. The temperature sensors 112a and 112b may be provided on the printed circuit board 110 while being covered with a heat conductive member. In this case, the temperature sensors 112a and 112b are joined to the L-phase fixed terminal plate 86 and the N-phase fixed terminal plate 88, which are the objects of temperature measurement, through a heat conducting member. The thermally conductive member is preferably a flexible resin having thermal conductivity. Thereby, temperature sensor 112a, 112b can contact temperature measurement object more closely, and can improve temperature measurement accuracy. Further, in order to ensure more reliable electrical insulation between the L-phase fixed terminal plate 86 and the N-phase fixed terminal plate 88 that are the objects of 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 conducting member, for example, Hypersoft heat dissipation sheet (registered trademark) 6500H, 6510H, 5578H manufactured by 3M Company can be used.

  The temperature sensor 112a mounted on the printed circuit board 110 is provided bonded to the L-phase fixed terminal board 86, and the temperature sensor 112b mounted on the printed circuit board 110 is provided bonded to the N-phase fixed terminal board 88. The temperature of the L-phase fixed terminal plate 86 measured by the temperature sensor 112a is transmitted to the substrate 120 via the signal line 114a. Further, the temperature of the N-phase fixed terminal board 88 measured by the temperature sensor 112b is transmitted to the substrate 120 via the signal line 114b.

  The control device provided on the substrate 120 determines whether or not the fixed terminal temperature measured by the temperature sensors 112a and 112b exceeds a predetermined threshold temperature. Then, when the temperature of at least one of the fixed terminal plates 86 and 88 exceeds a predetermined threshold temperature, the control device determines that the outlet 10 is in an overheated state, and sends an operation signal to the open / close unit 70 via the signal line 60c. Send. As a result, the opening / closing unit 70 is operated to be in an open circuit state, and power supply to the blade receiving spring blocks 42a and 42b is interrupted. As the predetermined threshold temperature, the same value as that compared with the temperature measured by the temperature sensor 54 of the blade receiving spring blocks 42a and 42b described above can be used.

  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. However, the blade receiving spring blocks 42a and 42b or the fixed terminal plates 86 and 88 You may arrange | position a temperature sensor only in either one.

  As described above, the outlet 10 of the present embodiment is manufactured as follows. That is, first, the substrate 120 on which a circuit for detecting overheating as an abnormality is mounted is selected. Alternatively, when an outlet with a seismic function is used, a board on which a seismic sensor is mounted is selected. Alternatively, in the case of an outlet having a leakage detection function, a substrate on which a circuit including a leakage detection sensor or a current sensor is mounted is selected.

  Subsequently, the open / close unit 70 capable of turning on / off the power supply to the load is connected to the substrate 120 via the signal line 60c.

  Next, the blade receiving spring blocks 42a and 42b into which the plug blades of the plug are inserted and removed and the terminal portion 100 for connecting the external power supply line are electrically connected to the open / close unit 70, respectively. Here, the blade receiving spring blocks 42 a and 42 b are stored in the body member 44 after the temperature sensor 54 is attached. Then, the substrate 120, the opening / closing unit 70, the terminal unit 100, and the blade receiving spring blocks 42 a and 42 b are accommodated in the common case 16, and the cover member 12 is provided to cover the opening of the case 16.

  As described above, according to the outlet 10 and the manufacturing method thereof according to the present embodiment, the opening / closing unit 70, the case 16, the outlet body cover 12, and the like can be shared. Can be easily manufactured at low cost.

  Note that the outlet and the manufacturing method thereof according to the present disclosure are not limited to those described above, and various changes and improvements can be made within the scope of the matters described in the claims of the present application. Of course.

  2 decorative cover, 10 outlet, 12 outlet body cover (cover member), 12a upper cover, 12b lower cover, 13 mounting pin, 14 outlet outer cover (cover member), 14a opening, 14b through-hole, 14c power light portion, 14d Abnormal light part, 15 mounting hole, 16 case, 18a, 18b plug blade insertion portion, 20a, 20b plug blade insertion port, 20c grounding terminal insertion port, 22 engagement portion, 24 bottom surface, 25a, 25b case inner surface, 26 columns Part, 27 partition wall part, 28, 30, 32 space, 29 support projection part, 40 blade receiving spring unit, 42a, 42b blade receiving spring block (blade receiving member), 44 body member, 45 recess, 46 fixing member, 47a , 47b Rib, 48 Blade receiving spring, 49 Bending spring part, 49a Bending part, 49b Extending part, 50 Connection part, 52 Connection terminal part, 54, 112a, 112b Temperature sensor, 54a L phase conductor, 54b N phase conductor, 56 clip, 56a Holding piece, 56b Connection part, 60a, 60b, 60c, 62a, 62b Signal line, 70 Opening / closing unit, 71 Operation lever, 72 Housing, 73 Coil, 74 Movable iron piece, 75 Trigger lever, 75a, 76a, 79a Shaft, 76 Support lever, 77 Acting plate, 78 Pressing spring, 79 Acting member, 81 L-phase movable terminal Plate, 82 L-phase movable terminal, 83 N-phase movable terminal, 84 N-phase movable terminal, 86 L-phase fixed terminal, 86a L-phase connection, 87 L-phase fixed terminal, 88 N-phase fixed terminal, 88a N phase connection part, 89 N phase fixed terminal part, 96 unlocking member, 100 terminal part, 102 grounding terminal part, 104 grounding terminal board , 110 Printed circuit board, 114a, 114b Signal line, 120 board, 130 Switch panel, 132 Push switch, 134 Power light emitting part, 136 Abnormal light emitting part.

Claims (6)

A method of manufacturing an outlet in which at least one component is shared for a plurality of abnormalities,
Select a board on which a circuit for detecting any of the above abnormalities is mounted,
An open / close unit that can turn on / off power supply to a load and is shared for the plurality of abnormalities is connected to the substrate via a signal line,
A blade receiving member into which the plug blade of the plug is inserted and removed, and a terminal portion for connecting an external power line are electrically connected to the open / close unit, respectively.
The substrate, the opening / closing unit, the terminal portion, and the blade receiving member are housed in a common case,
A cover member is provided to cover the opening of the case;
Manufacturing method of outlet.   The method of manufacturing an outlet according to claim 1, wherein a temperature sensor is attached to at least one of the blade holder and the terminal portion, and a signal line of the temperature sensor is connected to the substrate.   The method of manufacturing an outlet according to claim 1 or 2, wherein a substrate on which a seismic sensor for detecting an earthquake is mounted is selected. An outlet in which at least one part is shared for a plurality of abnormalities,
A substrate on which a circuit for detecting any one of the abnormalities is mounted;
An open / close unit that can turn on and off power supply to a load, is connected to the substrate via a signal line, and is shared for the plurality of abnormalities,
A blade receiving member that is electrically connected to the open / close unit and into which a plug blade of an insertion plug is inserted and removed;
Electrically connected to the open / close unit, and a terminal portion for connecting an external power line;
A case for housing the substrate, the opening / closing unit, the terminal portion, and the blade receiving member;
And a cover member provided to cover the opening of the case.   The outlet according to claim 4, wherein a temperature sensor is attached to at least one of the blade holder and the terminal portion, and a signal line of the temperature sensor is connected to the substrate.   The outlet according to claim 4 or 5, wherein a seismic sensor for detecting an earthquake is mounted on the substrate.

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