TW201943160A - Method of manufacturing electrical outlet and electrical outlet - Google Patents

Abstract

A method of manufacturing an electrical outlet in which at least one component is used commonly with respect to a plurality of anomalies. A substrate (120) on which a circuit for sensing some anomalies is mounted is selected. Then, an open/close unit (70) that is used commonly with respect to a plurality of anomalies is connected to the substrate (120). Then, blade-receiving spring blocks (42a, 42b) and a terminal portion (100) for connecting an external power supply line are electrically connected to the open/close unit (70). Then, the substrate (120), the open/close unit (70), the terminal portion (100), and the blade-receiving spring blocks (42a, 42b) are housed in a common case, and an opening portion of the case is covered with a cover member.

Description

Method for manufacturing socket and socket

The disclosure of the present invention relates to a method for manufacturing a socket and a socket.

Conventionally, Japanese Patent Application Laid-Open No. 2007-42407 describes a socket including at least one pair of plug-in plug connection portions and a blocking mechanism portion that blocks power supply to the plug-plug connection portion. This socket is provided with a detection section that detects the fouling and electrical conduction (tracking) generated between the blades inserted into the plug. When an abnormality is detected by this detection section, the blocking mechanism is operated to block the power supply to the plug connector. supply.

[Problems to be Solved by the Invention]

The socket is configured to block the power supply to the plug connector when an abnormality such as overheating of the socket or an earthquake is detected, except that the blocking mechanism is operated to detect the contamination and conduct electricity, and the power supply to the plug is interrupted. Happening. In this case, different special parts are used to form the socket for each abnormality such as conductive pollution, overheating, and earthquake. In this case, providing different casings, housings, electronic parts, terminal parts, etc., makes the manufacturing cost of the socket high and the productivity lower.

An object of the present invention is to provide a socket manufacturing method and socket, which can reduce manufacturing costs and improve productivity by sharing a plurality of abnormal parts.
[Technical means to solve the problem]

One aspect of the method for manufacturing a socket disclosed in the present invention is to manufacture a socket configured by sharing at least one part for a plurality of abnormalities. The manufacturing method includes: selecting a substrate on which a circuit for detecting any abnormality is installed; and connecting an opening and closing unit to the substrate through a signal line, and the opening and closing unit can turn ON (OFF) the power supply to the load (OFF) ), And shared for plural exceptions. The insert receiving member to which the insert insert of the plug is inserted (removed) and the terminal portion for connecting the external power cord are electrically connected to the opening and closing unit, respectively. Then, the substrate, the opening and closing unit, the terminal portion, and the insert receiving member are housed in a common case, and a cover member is provided to cover the opening portion of the case.

The socket of another aspect disclosed in the present invention is constituted by sharing at least one part for a plurality of abnormalities. This socket is provided with: a base plate, which is equipped with a circuit for detecting any abnormality; an opening and closing unit, which can turn on and off the power supply to the load, and is connected to the substrate through a signal line, and is shared for a plurality of abnormalities; The receiving member is electrically connected with the opening and closing unit, and the insert receiving member is inserted (extracted) by the inserting piece of the plug; the terminal part is electrically connected with the opening and closing unit and is used to connect the external power cord; the housing A housing substrate, an opening / closing unit, a terminal portion, and an insert receiving member; and a cover member provided to cover the opening portion of the housing.
[Effect of the present invention]

The socket manufacturing method and socket disclosed in the present invention can share an opening and closing unit, a housing, a cover member, and the like, so sockets corresponding to various abnormalities can be simply and inexpensively manufactured for detecting an abnormality by only changing a circuit.

Hereinafter, the embodiments disclosed in the present invention will be described in detail with reference to the drawings. In this description, specific shapes, materials, numerical values, directions, and the like are exemplified for easy understanding of the contents disclosed in the present invention, and may be appropriately changed in accordance with use, purpose, specifications, and the like. In addition, a plurality of embodiments, modifications, and the like are included in the following contents, and it is assumed from the beginning that the characteristic parts are appropriately combined and applied.

FIG. 1 is an overall perspective view of a socket 10 provided with a makeup cover. FIG. 2 is a front view of the socket 10. In FIGS. 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-back direction (or a depth direction), and an arrow Z indicates an up-down direction (or a height direction). These 3 directions are perpendicular to each other. In addition, these directions are merely examples and are not intended to substantially define the configuration of the socket disclosed in the present invention.

As shown in FIGS. 1 and 2, the socket 10 is formed as an elongated rectangular parallelepiped with a longitudinal length in a front view when viewed from the front. The size of the socket 10 is a size prescribed by the JIS standard. The socket 10 is provided, for example, in a state of being fitted into a wall surface.

Around the front surface of the socket 10, a makeup cover 2 having a rectangular frame shape is arranged. The makeup cover 2 is made of, for example, a resin molded product. The makeup cover 2 is a member for improving the appearance, and is provided around the front surface of the socket 10 so that the socket 10 is formed in a hole on the wall surface, and a mounting tool for mounting the socket 10 in this hole ( (Not shown) invisible from the outside.

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

The socket body cover 12 is arranged to cover the front surface of the socket 10. The socket 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 side of the tab receiving spring block accommodated in a case described later.

On the upper cover 12a, the insert insertion portions 18a and 18b are arranged in two levels. In the upper-layer insert insertion portion 18a, insert insertion openings 20a and 20b in which two plate-shaped inserts for inserting a plug (not shown) are inserted are formed side by side in the left-right direction. In addition, in the lower-layer insert insertion portion 18b, the insert insertion openings 20a and 20b in which the two inserts of the insert are inserted are formed side by side in the left-right direction, and are formed below the insert insertion openings 20a and 20b. The ground terminal insertion opening 20c into which the rod terminal for grounding is inserted. In this embodiment, it is shown that the opening edge portion of one of the blade insertion openings 20a is formed into a frame shape that is slightly D-shaped in front view, and the opening edge portion of the other blade insertion opening 20b is formed into a rectangle. Frame-shaped example. However, the present invention is not limited to this example, and the edge portions of the openings of the insert insertion openings 20a and 20b may be formed in the same shape.

A lower cover 12b constituting a part of the socket body cover 12 is provided so as to cover the terminal portion 100 stored in the housing. On the surface of the lower cover plate 12b, characters such as "ground" and "conducting", signs indicating grounding, and the like are given. The lower cover 12b is detachably attached to the upper cover 12a. Specifically, the two mounting pins 13 integrally formed with the lower cover plate 12b are inserted into the mounting holes 15 formed in the upper cover plate 12a for installation. By removing the lower cover 12b from the socket 10, the grounding terminal portion of the terminal portion 100 is exposed. Accordingly, the socket 10 is in a state capable of being connected to an external electric wire for grounding.

The socket outer cover 14 is formed in a U-shape in a front view when viewed from the front, and is disposed adjacent to the three outer sides above, to the left, and below the socket main cover 12. The socket outer cover 14 is provided so as to cover the front surface of the opening and closing unit 70 described later. A rectangular opening portion 14a having a longitudinally long length and a circular through hole 14b located above the opening portion 14a are formed in the socket outer cover plate 14. In the opening portion 14a, the operation lever 71 of the opening / closing unit 70 is arranged in an exposed state. In addition, a push switch mounted on a substrate to be described later is disposed inside (that is, rear) of the through hole 14b. Thereby, for example, by inserting a thin rod-shaped tool or a pen tip into the through-hole 14b, the push switch can be pressed.

In the outer cover 14 of the socket, above the through-holes 14b, displays of "power" and "abnormal" are attached. The area above the display of "power" becomes the power light portion 14c that lights up green, for example, when the power supply of the socket 10 is supplied; the area above the display of "abnormal", for example, lights up red or flashes red when the socket 10 is abnormally hot. The abnormal light portion 14d. In addition, the power source lamp portion 14c and the abnormal lamp portion 14d are light-transmitting portions through which light penetrates the wall surface of the outer cover 14 of the socket, but may be formed as light-transmitting windows each including a through hole.

FIG. 4 is a front view of the socket 10 shown in a state where the socket main body cover 12 and the socket outer cover 14 are removed. FIG. 5 is an exploded perspective view showing a state where the housing 16 is removed from the socket 10 shown in FIG. 4.

The socket 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 portion and an opening at the front.

As shown in FIGS. 3 and 4, an engaging portion 22 is formed on the outer surface along the longitudinal direction of the casing 16. The engaging portions 22 are provided one by one on each side surface at intervals. The socket body cover 12 is mounted on the housing 16 by engaging hook portions (not shown) of the socket body cover 12 with the engaging portions 22.

As shown in FIG. 5, on the bottom surface 24 of the casing 16, two pillar portions 26 are vertically arranged at intervals in the vertical direction Z. A space 28 for accommodating the opening / closing unit 70 is partitioned between these column portions 26 and the housing inner surface 25a on one side in the width direction X. In addition, a space 30 is formed between the post portion 26 and the housing inner surface 25b on the other side to receive the inserts and receive the spring unit 40, the substrate 120, and the like.

Further, a partition wall portion 27 having an L-shape in a front view when viewed from the front is formed below the bottom surface 24 of the casing 16 and formed. By this partition wall portion 27, a space 32 accommodating the terminal portion 100 is partitioned in the case 16.

In addition, a plurality of supporting protrusions 29 are formed on the bottom surface 24 of the casing 16 so as to protrude. With this, the front end surface of the support protrusion 29 supports the substrate 120 stored in the case 16.

6 is a perspective view showing a state where a main body member and an opening / closing unit casing are removed from the socket shown in FIG. 5. As shown in FIGS. 4 to 6, the socket 10 includes a blade receiving spring unit 40, an opening and closing unit 70, and a substrate 120. The socket 10 may include a grounding terminal portion 102.

The blade receiving spring unit 40 includes: 2 blade receiving spring block members 42a, 42b; a main body member 44 supporting these blade receiving spring block members 42a, 42b; and a fixing member 46 to abut against the body member 44 The state fixing insert receives the spring block members 42a, 42b. The main body member 44 and the fixing member 46 are preferably constituted by an insulating resin molded article. In addition, the blade receiving spring block members 42 a and 42 b may be held or fixed by a pair of claw portions (not shown) provided on the main body member 44.

One of the inserts receives the spring block 42 a and is a terminal member electrically connected to an external power line of a voltage phase (hereinafter also referred to as an L-phase) connected to the terminal portion 100 of the socket 10. The other insert receives the spring block 42 b, and is a terminal member electrically connected to a neutral phase (hereinafter also referred to as N-phase) external power line connected to the terminal portion 100 of the socket 10. The inserts receive the spring blocks 42a, 42b, and are manufactured by, for example, punching and bending metal plates such as copper plates.

Each of the inserts receives the spring block members 42a, 42b, and can use the same shape. Therefore, the configuration of one of the insert-receiving spring block members 42a is mainly described below, and the description of the other of the insert-receiving spring block members 42b is appropriately omitted by reference.

The insert-receiving spring block 42 a is integrally provided with two pairs of insert-receiving springs 48, a connecting portion 50 that mechanically and electrically connects each of the insert-receiving springs 48, and a connection terminal portion 52 from the connecting portion 50. The edge portion is formed by bending in the front-rear direction.

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

Among the N-phase insert-receiving spring block members 42b, a pair of insert-receiving springs 48 is disposed inside the insert insertion opening 20b formed on the left side of the upper layer of the upper cover 12a. The other pair of blade receiving springs 48 is disposed inside the blade insertion opening 20b formed on the left side of the lower layer of the upper cover 12a (see FIG. 2).

As shown in FIG. 6, one end of the L-phase wire 54 a is connected to the L-phase insert 54 a connection terminal portion 52 of the spring block 42 a by welding or the like. In addition, one end of the N-phase lead wire 54b is connected to the connection terminal portion 52 of the spring block member 42b by welding to one end of the N-phase lead wire 54b. The L-phase lead wire 54a and the N-phase lead wire 54b are, for example, preferably formed of a braided copper wire covered with insulation. The other ends of the L-phase lead 54a and the N-phase lead 54b are connected to the opening and closing unit 70, respectively.

In addition, the temperature sensors 54 are respectively attached to the connection terminal portions 52 (see FIG. 11) of the blade receiving spring block members 42 a and 56 by the clips 56. The mounting structure of the temperature sensor 54 will be described in detail later. The temperature sensors 54 respectively measure the temperatures of the inserts subjected to the spring blocks 42a and 42b, and send the measurement results to the substrate 120 through the signal lines 60a and 60b.

The substrate 120 is a circuit substrate on which pattern wiring (not shown) is formed. A control device made of, for example, a microcomputer is mounted on the substrate 120. The control device determines whether the temperature of the blade receiving spring block 42a, 42b does not exceed a predetermined threshold based on the measurement result sent from the temperature sensor 54. Then, the control device judges that the socket 10 is in an overheated state when the temperature of at least one of the spring block members 42a and 42b that the insert receives is greater than a predetermined threshold temperature, and sends an operation signal to an opening and closing unit to be described later via a signal line 60c.

Here, the predetermined threshold temperature can be set to, for example, 100 ° C to 150 ° C. The predetermined threshold temperature can be set in accordance with the heat-resistant temperature of the resin material constituting the socket body cover plate 12 and the main body member 44 of the socket 10. In addition, the predetermined threshold temperature may be changed according to the ambient temperature (or ambient temperature) of the socket 10 used. In addition, a buzzer device may be mounted on the substrate 120. The control device may cause the abnormal light emitting part 136 to light or blink and cause the buzzer device to sound when the temperature of at least one of the spring block members 42a and 42b exceeding the predetermined threshold temperature is judged to be an overheating state, and Perform a notification action. Further, as the resin material constituting the cover member and the body member 44 and the like constituting the socket body cover 12 and the like, for example, melamine resin, urea resin, polybutylene terephthalate (PBT), and the like are suitably used.

As shown in FIG. 6, two signal lines 62 a and 62 b extend from the back of the substrate 120. Via these signal lines 62a and 62b, a signal indicating the measurement result generated by the temperature sensor 54 and the operating state (ON state) of the opening and closing unit 70 can be displayed to the outside of the socket 10. Power control devices or switchboards.

In this embodiment, an example in which the substrate 120 has a function of detecting the overheating state of the socket 10 as an abnormality has been described, but it is not limited to this example. The socket can also have a seismic detection function that interrupts the power supply when an earthquake above a predetermined magnitude is detected as an anomaly. In this case, the seismic intensity can be detected by a seismic sensor that can detect acceleration, such as a gyro sensor, etc., which is provided on the substrate or inside the socket. The seismic sensor is connected to the control device on the substrate via pattern wiring or signal lines on the substrate. The control device outputs an operation signal to the opening / closing unit 70 when it is determined that an earthquake having a predetermined magnitude or higher is based on an input from the seismic sensor. In addition, the socket disclosed in the present invention may have these earthquake detection functions and the above-mentioned overheating detection function, or may separately have a seismic detection function. Further, the socket disclosed by the present invention can be combined with the above-mentioned overheating detection function and earthquake detection function, or a leakage detection function alone, in combination with the above-mentioned overheat detection function and earthquake detection function. It may be configured as follows: in order to detect a leakage current, a current sensor is installed in the socket, and the opening and closing unit is operated when the current flowing through the insert to bear the spring block exceeds a predetermined threshold current value.

In sockets with such seismic detection function and leakage detection function, socket components other than the substrate can also be shared, which can improve the productivity of the socket and suppress the manufacturing cost.

As shown in FIG. 6, the socket 10 includes a switch board 130. A switch 132 is mounted on the switch board 130. The switch 132 is pressed and disposed inside the through hole 14 b of the socket outer cover 14 (refer to FIGS. 1 to 3). Thereby, the push switch 132 can be pressed from the outside of the socket 10 through the through-hole 14b. The switch board 130 is connected to the substrate 120 via a signal line. When the pressing switch 132 is pressed, an operation signal is transmitted from the substrate 120 to an opening and closing unit 70 described later. Thereby, the opening / closing unit 70 is switched from the closed circuit state to the open circuit state, and the push switch 132 is brought into a blinking state indicating an abnormality. By pressing the pressing switch 132 in this manner, it is possible to test whether the socket 10 is operating normally. In addition, the buzzer device that reports overheating can also be stopped by pressing the pressing switch 132.

On the switch board 130, a power source light emitting section 134 and an abnormal light emitting section 136 are mounted. The power source light emitting portion 134 is arranged to face the inside of the power source lamp portion 14c of the socket outer cover 14; the abnormal light emitting portion 136 is arranged to face the inside of the abnormal lamp portion 14d of the socket outer cover 14 (refer to FIG. 2). The power source light emitting section 134 is preferably composed of a green light emitting diode (LED), for example. The abnormal light emitting section 136 is preferably composed of, for example, a red light emitting diode (LED). The power source light emitting section 134 is turned on when the socket 10 is in a power supply state. As described later, the abnormal light emitting section 136 lights up or blinks when abnormal heat is detected in the socket 10. By making the lighting states of these light emitting sections 134 and 136 visually confirmable from the outside of the socket 10, the light emitting sections 134 and 136 constitute a part of the notification section.

Next, the opening and closing unit 70 will be described with reference to FIGS. 7 and 8. FIG. 7 is a side view of the opening and closing unit 70 in a closed circuit state. FIG. 8 is a side view of the opening and closing unit 70 in an open state. In FIGS. 7 and 8, the opening and closing unit 70 is shown in a state where the wall surface of the casing covering the outer side in the width direction is removed.

As shown in FIG. 7, the opening and closing unit 70 includes a case 72. An operating lever 71 is provided on the front surface of the casing 72 so as to be rotatable in an exposed state.

The opening / closing unit 70 is provided in the housing 72 with 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, and a pressure contact spring 80, 85, and L phases. Terminal plate 81 and 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 部 89.

The coil 73 receives an operation signal from the substrate 120 and supplies power. Thereby, the coil 73 generates a magnetic force. The movable iron piece 74 is provided in the housing 72 so as to be able to move forward and backward in the position Y behind the coil 73 (below in FIG. 7). The movable iron piece 74 is fixed to one end portion 83 a of the N-phase movable terminal plate 83. In addition, one end portion 83a of the N-phase movable terminal plate 83 is electrically and mechanically connected to the other end of the N-phase lead 54b by welding 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 a wide direction so as to be rotatable about the shaft portion 75 a as a center. One end portion 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 a wide-direction side wall surface of the case 72 so as to be rotatable about the shaft portion 76 a as a center. One end portion of the support lever 76 is disposed at a position that can be engaged with the other end portion of the trigger lever 75.

One end of the operating plate 77 abuts and supports above the other end of the support lever 76. A slightly U-shaped pressing spring 78 is connected at one end to the operating lever 71 and at the other end to the operating plate 77. By this pressing force of the pressing spring 78, one end of the operating plate 77 is pressed against the other of the supporting rod 76 On one end.

A torsion spring 90 is disposed around the rotation center of the operation lever 71. As described later, when the opening / closing unit 70 is operated to be in a power-off state, the operating lever 71 is rotated by the biasing force of the torsion spring 90, as shown in FIG. 8, and is in a state of protruding toward the front surface of the socket 10.

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 of the housing 72 in a manner capable of rotating about the shaft portion 79 a as a center. The rear end (lower end in FIG. 7) of the actuating member 79 is biased by the crimping spring 80. Thereby, the pressing member 80 is biased in the direction of counterclockwise rotation in FIG. 7 by the crimping spring 80.

The operating member 79 is provided so 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 lead 54a by welding or the like. In addition, for example, the 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.

The L-phase movable terminal plate 81 is pushed by the actuating member 79 in a clockwise position against the biasing force of the compression contact spring 85. Thereby, as described later, when the actuating member 79 is rotated counterclockwise by the biasing force of the crimping spring 80, the pressing force of the actuating member 79 is released, and the L-phase movable terminal plate is thereby biased by the biasing force of the crimping spring 85. 81 pushed up.

In addition, the actuating member 79 abuts the middle portion of the N-phase movable terminal plate 83. For example, the N-phase movable terminal portion 84 is fixed to the other end portion of the N-phase movable terminal plate 83 by caulking or the like. As described later, when the actuating member 79 rotates counterclockwise, the N-phase movable terminal plate 83 is pushed upward by the rear end portion (lower end portion in FIG. 7) of the actuating member 79 to move the N-phase movable terminal portion 84 forward. The square (upper in Figure 7) moves.

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

The N-phase movable terminal portion 84 is in electrical contact with the N-phase fixed terminal portion 89 disposed in the housing 72. For example, 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. The N-phase fixed terminal plate 88 extends to the outside of the case 72.

The opening and closing unit 70 configured as described above, when the coil 73 is supplied with electric power by an operating signal from the substrate 120, as shown in FIG. 8, the movable iron piece 74 is attracted by the magnetic force of the coil 73 and moved in the direction of arrow A. .

In this way, one end of the trigger lever 75 is pushed by the movable iron piece 74, thereby turning clockwise, and along with this, the support lever 76 is pushed by the other end of the trigger lever 75, thereby counterclockwise. Direction.

As a result, one end of the operating plate 77 supporting the upper end of the support lever 76 is disengaged, and the operating plate 77 is pushed backward (downward in FIG. 8) by the pressing force of the pressing spring 78 to be inclined. status. At this time, the operating lever 71 is rotated in a state where the end portion protrudes toward the front surface of the socket 10 by the reaction force of the pressing spring 78 and the biasing force of the torsion spring 90.

Since the support of the actuating plate 77 by the support lever 76 is released, the supporting actuating member 79 is pushed in the clockwise direction by the actuating plate 77 and is rotated in the counterclockwise direction by the biasing force of the compression spring 80. Thereby, the L-phase movable terminal plate 81 is moved by the biasing force of the crimping 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 is pushed upward to be moved by being pushed by the operating member 79 which is rotated counterclockwise. Thereby, the N-phase movable terminal portion 84 is separated from the N-phase fixed terminal portion 89. In this way, 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, and the switching unit 70 is switched from the closed circuit state to the open circuit state. As a result, the power supply to the insert receiving spring block 42a and 42b is blocked, and the power supplied from the socket 10 to the load via the plug is turned off. When the abnormal state is released and the operating lever 71 is returned from the state shown in FIG. 8 to the state shown in FIG. 7 by manual operation, the constituent components inside the opening and closing unit 70 are also restored from the state shown in FIG. 8 to The state shown in FIG. 7 can return from the open state to the closed state.

The opening / closing unit 70 is not limited to the above-mentioned configuration, and a conventional circuit blocking mechanism may be used.

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

The terminal portion 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 includes an L-phase connection portion 86 a bent in a U-shape at the other end portion extending from the housing 72 of the opening and closing unit 70. The N-phase fixed terminal plate 88 includes an N-phase connection portion 88 a bent in a U shape at the other end portion extending from the case 72 of the opening and closing unit 70. Locking springs 92 and 94 are arranged inside the respective connecting portions 86a and 88a. Thereby, each connection part 86a, 88a becomes what is called a quick-connect terminal: It can be connected quickly by inserting L-phase and N-phase external power supply line connection terminals from the rear, respectively.

The unlocking member 96 can separate the lock springs 92 and 94 from each of the phase connection portions 86a and 88a by a press-in operation. As a result, the connection terminals of the L-phase and N-phase external power cables can be removed from the connection portion 86a. , 88a removed.

The terminal portion 100 includes a grounding terminal portion 102. The grounding terminal portion 102 includes, for example, a grounding terminal plate 104 formed by pressing and bending a metal plate such as a copper plate. A screw 105 is screwed onto one end portion of the ground terminal plate 104, and the ground wire can be connected to the ground terminal portion 102 by using the screw 105. At the other end of the grounding terminal plate 104, a grounding tab is formed to receive the spring 106. This grounding insert receives the spring 106 and is disposed inside the ground terminal insertion opening 20c formed on the lower layer of the upper cover 12a of the socket body cover 12. Thereby, the ground terminal of the plug inserted through the ground terminal insertion opening 20c is connected to the ground terminal plate 104.

FIG. 10 is a perspective view showing a mounting structure of a temperature sensor of the socket. FIG. 11 is a partially cut-away plan view showing the temperature sensor mounting structure of FIG. 10. FIG. 12 is an exploded perspective view showing the blade receiving spring block members 42 a and 42 b and the main body member 44. In FIGS. 10 to 12, 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 includes an L-phase blade receiving spring block 42 a, an N-phase blade receiving spring block 42 b, and a support for these blade receiving spring blocks. Pieces 42a and 42b of the body member 44. Each of the insert-receiving spring block members 42 a and 42 b has a symmetrical shape with respect to the core line, ie, the BB line, in the width direction of the insert-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 insert-receiving spring block 42 a is integrally provided with two pairs of insert-receiving springs 48, a connecting portion 50 that mechanically and electrically connects each of the insert-receiving springs 48, and a connection terminal portion 52 from the connecting portion 50. The edge portion is formed by bending along the front-rear direction Y. A temperature sensor 54 is attached to the connection terminal portion 52.

In this embodiment, the temperature sensor 54 is clamped and fixed by a clip 56 which is an example of a pressing member. As a result, the temperature sensor 54 is tightly arranged with the spring block 42 a that is the object of the temperature measurement. The clip 56 is integrally provided with 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 mounted in a state in which the temperature sensor 54 is held in close contact with the connection terminal portion 52 that is a temperature measurement target by holding the temperature sensor 54 by the clip 56. This improves the temperature measurement accuracy of the temperature sensor 54. In addition, in a state where the temperature sensor 54 is attached to the connection terminal portion 52 with the clip 56, the tab receiving spring block members 42 a and 42 b can be simply assembled to the main body member 44.

The temperature sensor 54 is suitable to be constituted by any one of a thermistor, a resistance temperature detector, and a thermocouple. In this case, the clip 56 is used to connect the thermistor, the resistance temperature detector, and the thermoelectric Either of these is closely attached to the connection terminal portion 52 which is a temperature measurement target. In addition, a heat conductive member may be interposed between the temperature sensor 54 and the connection terminal portion 52. The heat-conducting member is preferably constituted by a thin and soft member such as a sheet or grease having thermal conductivity. By providing such heat-conducting members, the temperature sensor 54 is likely to be in a more intimate state with the temperature measurement object, which can help improve the accuracy of temperature measurement.

In the present embodiment, as the pressing member for pressing the temperature sensor 54 so as to be in close contact with the connection terminal portion 52 which is a temperature measurement object, an example using the clip 56 is provided, but it is not limited to this. example. Instead of the clasp 56, a biasing member such as a coil spring or a plate spring may be used to push the temperature sensor toward the temperature measurement object.

FIG. 13 is a perspective view showing a state in which one blade receiving spring block 42 a is assembled to the main body member 44. FIG. 14 is an exploded perspective view showing one insert receiving spring block 42 a and the main body member 44. 13 and FIG. 14, illustration of the temperature sensor 54 and the clip 56 is omitted.

As shown in FIGS. 13 and 14, the blade receiving spring block (insert blade receiving member) 42 a is integrally provided with two pairs of blade receiving springs 48 and a connecting portion 50 mechanically connecting the blade receiving springs 48. And is electrically connected; and the connection terminal portion 52 is formed by bending the edge portion of the connecting portion 50 along the front-rear direction Y. The blade receiving spring 48 includes a pair of blade receiving pieces facing each other. The front end of each insert receiving piece is bent to the outside in a manner of being slightly V-shaped opened. Thereby, the insert piece inserted into the plug is surely incorporated between a pair of insert receiving pieces.

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

The blade receives the spring block 42 a and is housed and arranged in the main body member 44. The main body member 44 is formed so as to partition four recessed portions 45. Among the inner wall surfaces of the partition recess 45, the wall surface on the center side in the width direction X is formed by extending two rib portions 47a in the front-rear direction Y at intervals. With these ribs 47a, the strength of the main body member 44 can be increased.

Further, among the inner wall surfaces of the partition recess 45, the inner wall surfaces facing the vertical direction Z are formed by facing the ribs 47b, respectively. As shown in FIG. 13, these ribs 47 b become one of the bending spring portions 49 on both sides of the vertical direction Z by the blade receiving spring 48 when the blade receiving spring block 42 a is assembled to the main body 44. The extended portion 49b is sandwiched. The bent portion 49a of the bent spring portion 49 abuts on the end portion of the rib portion 47b.

In this way, the bent portion 49a of the bent spring portion 49 is brought into abutment with the end portion of the rib portion 47b formed on the main body member 44 to assemble the blade receiving spring block 42a to the main body member 44 correctly. Positioning status. In addition, the state in which the rib portion 47b is sandwiched by the pair of extension portions 49b of one of the bending spring portions 49 enables the blade receiving spring block 42a to be firmly assembled to the body member 44.

In addition, if a force in the wide direction X acts on an inserting plug for inserting (removing) the socket 10, a pair of insert receiving pieces are abnormally opened and plastically deformed. There are inserts and insert receiving pieces. When contact pressure becomes weak. As a result, spark discharges and the like due to poor contact may cause abnormal overheating. In contrast, the socket 10 of this embodiment can prevent or suppress the opening 47b by clamping the rib portion 47b to the bent spring portion 49 formed integrally with the blade receiving spring 48, even if the opening force acts as described above. An insert receiving spring 48 composed of a pair of insert receiving pieces is abnormally opened and deformed.

In the present embodiment, an example in which rib portions 47b are formed on two inner wall surfaces of the recessed portion 45 facing each other in the up-down direction Z and sandwiched by a bending spring portion 49 will be described, but it is not limited to this example. It can also be configured as follows: a pair of extension portions of the bending spring portion 49 sandwiches ribs formed by protruding the inner wall surface of the recessed portion 45 in the front-rear direction Y (ie, the bottom surface of the recessed portion 45); The base end portion of the sheet receiving sheet (ie, the end portion opposite to the front end portion) is sandwiched by a rib formed protruding from the bottom surface.

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 112a and 112b are mounted on the printed circuit board 110. The temperature sensors 112a and 112b are preferably constituted by, for example, any one of a thermistor, a resistance temperature detector, and a thermocouple. The temperature sensors 112 a and 112 b may be covered with a heat conductive member and provided on the printed substrate 110. In this case, the temperature sensors 112a and 112b are connected to the L-phase fixed terminal plate 86 and the N-phase fixed terminal plate 88 which are temperature measurement targets via the heat conductive member. The thermally conductive member is preferably a flexible resin having thermal conductivity. Thereby, the temperature sensors 112a and 112b are more closely contacted with the temperature measurement object, and the temperature measurement accuracy can be improved. In addition, in order to make the electrical insulation between the L-phase fixed terminal plate 86 and the N-phase fixed terminal plate 88, which is the object of temperature measurement, more reliable, the heat-conducting member is preferably an insulating resin. As a specific example, a low-hardness acrylic resin can be used as the heat conductive member. For example, a Hyper Soft heat sink (registered trademark) 6500H, 6510H, 5578H made by 3M can be used.

The temperature sensor 112a mounted on the printed circuit board 110 is provided in contact with the L-phase fixed terminal plate 86; the temperature sensor 112b mounted in the printed circuit board 110 is provided in connection with the N-phase fixed terminal plate 88. Then, the temperature of the L-phase fixed terminal plate 86 measured by the temperature sensor 112a is sent to the substrate 120 through the signal line 114a. In addition, the temperature of the N-phase fixed terminal plate 88 measured by the temperature sensor 112b is sent to the substrate 120 through the signal line 114b.

A control device provided on the substrate 120 determines whether the temperature of the fixed terminal 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 device determines that the socket 10 is in an overheated state, and sends an operation signal to the opening and closing unit 70 through the signal line 60c. Thereby, the opening / closing unit 70 is operated to be in an open circuit state, and the power supply to the blade receiving spring block 42a, 42b is blocked. Here, the predetermined threshold temperature may be the same value as compared with the temperature measured by the temperature sensor 54 of the above-mentioned blade receiving spring block 42a, 42b.

In addition, the socket 10 of this embodiment receives spring block pieces 42a and 42b on the insert pieces, and the temperature sensors are arranged on both of the fixed terminal plates 86 and 88. However, the socket block 10 can also receive spring block pieces 42a and 42b or be fixed only on the insert pieces. One of the terminal plates 86 and 88 is provided with a temperature sensor.

As described above, the socket 10 of this embodiment is manufactured as follows. That is, first, a substrate 120 on which a circuit for detecting overheating as an abnormality is selected is selected. Or, in the case of a socket having a seismic detection function, a substrate on which a seismic sensor is installed is selected. Or, in the case of a socket having a leakage detection function, a substrate on which a circuit including a leakage detection sensor or a current sensor is installed is selected.

Next, an opening / closing 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 block pieces 42a and 42b and the terminal portion 100 for connecting an external power line are electrically connected to the opening and closing unit 70, respectively. Here, the inserts receive the spring block members 42 a and 42 b, and after being mounted with the temperature sensor 54, they are stored in the main body member 44. Then, the base plate 120, the opening / closing unit 70, the terminal portion 100, and the tab receiving spring block members 42a and 42b are housed in a common housing 16; a cover member 12 is provided to cover the opening portion of the housing 16.

In this way, according to the socket 10 and the manufacturing method thereof according to this embodiment, the opening and closing unit 70, the casing 16, the socket body cover 12 and the like can be shared, so it can be manufactured at low cost and simply. And sockets corresponding to various abnormalities.

In addition, the socket disclosed in the present invention and the manufacturing method thereof are not limited to the above-mentioned embodiments, and naturally, various changes or improvements can be made within the scope of the matters described in the scope of the invention application patent.

2‧‧‧ makeup cover

10‧‧‧Socket

12‧‧‧Socket body cover (cover member)

12a‧‧‧ Upper cover

12b‧‧‧Lower cover

13‧‧‧mounting pin

14‧‧‧ Outer cover of cover (cover member)

14a‧‧‧ opening

14b‧‧‧through hole

14c‧‧‧Power light section

14d‧‧‧ abnormal light part

15‧‧‧Mounting holes

16‧‧‧shell

18a, 18b‧‧‧ insert insert

20a, 20b‧‧‧‧Insertion slot

20c‧‧‧Ground terminal insertion port

22‧‧‧ Engagement Department

24‧‧‧ underside

25a, 25b‧‧‧Inner surface of casing

26‧‧‧ pillar

27‧‧‧ partition wall

28, 30, 32‧‧‧ space

29‧‧‧ support protrusion

40‧‧‧ insert bearing spring unit

42a, 42b ‧‧‧ insert bearing spring block (insert bearing member)

44‧‧‧ main body

45‧‧‧ recess

46‧‧‧Fixed components

47a, 47b ‧ ‧ ‧ ribs

48‧‧‧ inserts withstand spring

49‧‧‧ bending spring

49a‧‧‧bend

49b‧‧‧ extension

50‧‧‧ Connection Department

52‧‧‧Connection terminal

54, 112a, 112b‧‧‧ Temperature sensor

54a‧‧‧L phase conductor

54b‧‧‧N phase conductor

56‧‧‧ buckle

56a‧‧‧Clip

56b‧‧‧Connection Department

60a, 60b, 60c, 62a, 62b ‧‧‧ signal lines

70‧‧‧Opening and closing unit

71‧‧‧ Joystick

72‧‧‧ shell

73‧‧‧coil

74‧‧‧ movable iron plate

75‧‧‧Trigger lever

75a, 76a, 79a ‧‧‧ shaft

76‧‧‧ Support

77‧‧‧action board

78‧‧‧Pushing spring

79‧‧‧acting component

80, 85‧‧‧ Crimp Spring

81‧‧‧L phase movable terminal board

82‧‧‧L-phase movable terminal

83‧‧‧N-phase movable terminal board

83a‧‧‧One end

84‧‧‧N-phase movable terminal

86‧‧‧L phase fixed terminal board

86a‧‧‧L phase connection

87‧‧‧L phase fixed terminal

88‧‧‧N-phase fixed terminal board

88a‧‧‧N phase connection

89‧‧‧N-phase fixed terminal

90‧‧‧torsion spring

92, 94‧‧‧ lock spring

96‧‧‧Unlocking components

100‧‧‧Terminal

102‧‧‧ Ground terminal

104‧‧‧Ground terminal board

105‧‧‧screw

106‧‧‧Grounding blade with spring

110‧‧‧printed substrate

114a, 114b ‧‧‧ signal line

120‧‧‧ substrate

130‧‧‧ Switchboard

132‧‧‧Press the switch

134‧‧‧ Power light emitting part

136‧‧‧ abnormal light emitting part

FIG. 1 is an overall perspective view of a socket provided with a makeup cover.

Figure 2 is a front view of the socket.

FIG. 3 is an exploded perspective view of the socket shown in a state where the cover of the socket body and the outer cover of the socket are removed.

FIG. 4 is a front view of the socket shown with the socket body cover and the socket outer cover removed.

FIG. 5 is an exploded perspective view showing a state where a housing is removed from the socket shown in FIG. 4.

6 is a perspective view showing a state where a main body member and an opening / closing unit casing are removed from the socket shown in FIG. 5.

Fig. 7 is a side view of the opening and closing unit in a closed circuit state.

Fig. 8 is a side view of the opening and closing unit in an open state.

FIG. 9 is a perspective view showing a terminal portion of the socket in a partially exploded state.

FIG. 10 is a perspective view showing a mounting structure of a temperature sensor of the socket.

FIG. 11 is a partially cut-away plan view showing the mounting structure of the temperature sensor of FIG. 10.

FIG. 12 is an exploded perspective view showing the insert receiving spring block and the main body.

FIG. 13 is a perspective view showing a state in which one blade receiving spring block is assembled to the main body member.

FIG. 14 is an exploded perspective view showing one insert receiving spring block and the main member.

FIG. 15 is an enlarged perspective view showing a part of the terminal portion.

Claims (6)

A socket manufacturing method for manufacturing a socket configured by sharing at least one part for a plurality of abnormalities, including the following steps: Selecting a substrate on which a circuit for detecting any of the plurality of abnormalities is mounted; The opening and closing unit that can turn on (OFF) the power supply to the load and is common to the plurality of abnormalities is connected to the substrate through a signal line; The insert receiving member which is inserted (extracted) by the insert of the plug and the terminal portion for connecting the external power cord are electrically connected to the opening and closing unit; Storing the substrate, the opening / closing unit, the terminal portion, and the insert receiving member in a common housing; and A cover member is provided to cover the opening portion of the case. For example, the method for manufacturing a socket in the scope of patent application, wherein, A temperature sensor is mounted on at least one of the insert receiving member and the terminal portion, and a signal line of the temperature sensor is connected to the substrate. For example, the method for manufacturing a socket in the scope of patent application No. 1 or 2, wherein: Select the baseplate on which the seismic sensor for earthquake detection is installed. A socket that shares at least one part for a plurality of abnormalities, including: The base plate is provided with a circuit for detecting any one of the plurality of abnormalities; The opening and closing unit can turn on and off the power supply to the load, and is connected to the substrate through a signal line, and is shared for the plurality of abnormalities; The insert receiving member is electrically connected to the opening and closing unit, and the insert receiving member is inserted and removed by the insert inserted into the plug; The terminal part is electrically connected with the opening and closing unit and is used for connecting an external power line; A housing that houses the substrate, the opening and closing unit, the terminal portion, and the insert receiving member; and The cover member is provided to cover the opening portion of the case. If the socket of the scope of patent application item 4, A temperature sensor is mounted on at least one of the insert receiving member and the terminal portion, and a signal line of the temperature sensor is connected to the substrate. If the socket of the scope of patent application No. 4 or 5, An earthquake sensor for detecting an earthquake is mounted on the substrate.