JP6909989B2 - Connection device, and connection system with connection device - Google Patents

Description

The present invention generally relates to a connecting device and a connecting system including the connecting device, and more particularly to a connecting device having a blocking function and a connecting system including the connecting device.

Conventionally, an outlet having a shutoff mechanism for shutting off an electric path in the event of an abnormality is known, and is disclosed in, for example, Patent Document 1. The outlet described in Patent Document 1 includes at least one pair of plug connection portions, a shutoff mechanism portion that opens and closes the open / close contacts to shut off the electric path, and an operation handle for opening / closing the open / close contacts of the cutoff mechanism portion. And have.

This outlet is used with the operation handle turned on in the installed state. Then, when the tracking is detected and the electric circuit is cut off, the operation steering wheel is turned off.

Japanese Unexamined Patent Publication No. 2007-42407

By the way, in the outlet (connecting device) as in the above conventional example, not only the user manually turns on the operation handle (handle) to release the cutoff of the electric circuit, but also the user manually turns off the operation handle. It is also desired to use it to cut off the electric circuit. However, when the manual off operation of the operation handle is allowed, there is a problem that the appearance is deteriorated by exposing the operation handle so that the user can easily perform the off operation.

The present invention has been made in view of the above points, and an object of the present invention is to provide a connection device that allows manual turning off of the handle but does not easily look bad, and a connection system including the connection device. ..

The connection device according to one aspect of the present invention includes an outlet block and a breaker block. The outlet block has a connection portion. The breaker block has a circuit breaker connected between the connection and the power supply. The breaker block further includes a housing and a handle. The housing has an opening on one side. The handle rotates about a rotation axis between the on position and the off position in conjunction with the opening and closing of the circuit breaker. The handle includes a handle body and a convex portion. The handle body has an exposed surface. The exposed surface is exposed from the opening at the on position and is substantially flush with the surface of the housing provided with the opening. The convex portion protrudes from the exposed surface. The convex portion has an inclined surface. The inclined surface is inclined with respect to the exposed surface and receives a rotational force for rotating the handle from the on position to the off position. One end edge of the opening of the housing faces the inclined surface at the on position of the handle. At the on position, there is a gap provided between one end edge facing the convex portion and the convex portion in the opening of the housing.

The connection system according to one aspect of the present invention includes the above connection device and an expansion outlet different from the outlet block. The outlet block includes an input terminal and an extension terminal that are electrically connected in parallel with the output terminal of the breaker block. The expansion outlet is electrically connected to the output terminal of the breaker block via the expansion terminal.

The present invention allows the steering wheel to be manually turned off, but does not easily deteriorate in appearance.

FIG. 1A is a perspective view showing a state in which the handle is in the on position in the connecting device according to the embodiment of the present invention. FIG. 1B is a perspective view showing a state in which the handle is in the off position in the same connection device. FIG. 2 is an explanatory view of the handle of the connection device of the same as above. FIG. 3A is a front view of the same connection device. FIG. 3B is a top view of the connection device of the same. FIG. 3C is a bottom view of the connection device of the same. FIG. 3D is a left side view of the same connection device. FIG. 3E is a right side view of the connection device of the same. FIG. 4 is a rear view of the connection device of the same. FIG. 5 is a circuit diagram of the same connection device. FIG. 6 is a perspective view showing an example of the usage state of the connection device of the above. FIG. 7A is a perspective view of a connecting device according to a first modification of the embodiment of the present invention. FIG. 7B is a partial cross-sectional view of the connection device of the same. FIG. 8 is a partial cross-sectional view of the connecting device according to the second modification of the embodiment of the present invention. FIG. 9A is a partial cross-sectional view of a connecting device according to a third modification of the embodiment of the present invention. FIG. 9B is a partial cross-sectional view of a configuration in which the connection device of the same is provided with a recess. FIG. 10 is a perspective view of a connecting device according to a fourth modification of the embodiment of the present invention. FIG. 11A is a schematic view of a connection system according to an embodiment of the present invention. FIG. 11B is a circuit diagram of the connection system of the same. FIG. 12 is a circuit diagram of a connection system of a comparative example.

Hereinafter, the connecting device according to the embodiment of the present invention will be described. However, the configuration described below is merely an example of the present invention, and the present invention is not limited to the following configuration, and other than this configuration does not deviate from the technical idea of the present invention. Within the range, various changes can be made depending on the design and the like.

As shown in FIGS. 1A, 1B, and 2, the connection device 1 of the present embodiment includes an outlet block 2 and a breaker block 3. The outlet block 2 has a connection portion 25. The breaker block 3 has a circuit breaker 34 connected between the connection portion 25 and the AC power supply (power supply) AC1. Further, the breaker block 3 further has a housing 31 and a handle 37. The housing 31 has an opening 331 on one surface. The handle 37 rotates about the rotation shaft 372 between the on position and the off position in conjunction with the opening and closing of the circuit breaker 34.

The handle 37 includes a handle body 370 and a convex portion 374. The handle body 370 has an exposed surface 373. The exposed surface 373 is exposed from the opening 331 at the on position and is substantially flush with the surface of the housing 31 provided with the opening 331. The convex portion 374 projects from the exposed surface 373. The convex portion 374 has an inclined surface 375. The inclined surface 375 is inclined with respect to the exposed surface 373 and receives a rotational force F1 for rotating the handle 37 from the on position to the off position.

Hereinafter, the connecting device 1 of the present embodiment will be described in detail. As shown in FIGS. 1A to 4, the connection device 1 of the present embodiment includes an outlet block 2 and a breaker block 3. The outlet block 2 and the breaker block 3 are configured to be attached to the mounting frame 4. The mounting frame 4 is, for example, a mounting frame for a large-angle conjunctive wiring device defined by Japanese Industrial Standards (JIS). In the present embodiment, the body 21 of the outlet block 2, which will be described later, has dimensions that allow up to three to be attached to one mounting frame 4 (so-called one module dimension). Further, the housing 31 of the breaker block 3, which will be described later, has a dimension in which two body 21s of the outlet block 2 are arranged in the vertical direction (so-called two module dimensions). That is, the body 21 of one outlet block 2 and the housing 31 of one breaker block 3 can be attached to the mounting frame 4.

The connection device 1 of the present embodiment is attached to a switch box embedded in a construction material such as a wall A1 (see FIG. 6) in a state where the outlet block 2 and the breaker block 3 are attached to the attachment frame 4. That is, the connecting device 1 of the present embodiment is used, for example, in a state of being mounted on the wall A1. Further, the connecting device 1 of the present embodiment is used to supply electric power to devices used around water such as a warm water toilet seat, a microwave oven, an IH cooking heater, and a refrigerator. Of course, the connecting device 1 of the present embodiment may be used for devices other than those described above.

In the following, as shown in FIG. 6, when the connecting device 1 of the present embodiment is mounted on the wall A1 and viewed from the front, the vertical and horizontal directions are up and down and left and right, the front side of the wall A1 is the front, and the wall A1. The back side will be described as the rear side. Note that FIGS. 1A, 1B, 6, 7A, and 10 show arrows indicating these directions (up, down, left, right, front, back), but these arrows are merely for explanation. It is described only for the purpose of assistance and does not involve any substance. Further, the above-mentioned provision of the direction does not mean to limit the usage mode of the connecting device 1 of the present embodiment.

As shown in FIGS. 1A, 1B, and 5, the outlet block 2 includes a body 21 and a connecting portion 25. The body 21 is formed in a box shape by, for example, a resin material. The body 21 is composed of a box-shaped body 22 having one surface (front surface) open and a box-shaped cover 23 having one surface (rear surface) open. Specifically, the body 21 is configured by joining the body 22 and the cover 23 in a state where the opening of the body 22 and the opening of the cover 23 are butted against each other.

The cover 23 is provided with a first insertion port 231, a second insertion port 232, and a third insertion port 233. The first insertion port 231 and the second insertion port 232 are provided side by side in the vertical direction. The first insertion port 231 and the second insertion port 232 and the third insertion port 233 are provided side by side in the left-right direction. Both the first insertion port 231 and the second insertion port 232 are formed in a rectangular shape. A pair of plug blades of voltage poles of a plug with a grounding electrode (so-called 3P plug, hereinafter simply referred to as "plug") are inserted into the first insertion port 231 and the second insertion port 232, respectively. The third outlet 233 is formed in a circular shape. The pin of the grounding electrode of the plug is inserted into the third insertion port 233.

The first insertion port 231 and the second insertion port 232, and the third insertion port 233 are each closed by the shutter 24. Each shutter 24 is pushed by the plug blade and the pin when the plug blade and the pin of the plug are inserted into the insertion ports 231 to 233 so as to move to a position where the insertion ports 231 to 233 are opened. It is configured. Further, each shutter 24 is configured to return to a position where the respective insertion ports 231 to 233 are closed when the plug blade and the pin of the plug are pulled out from the respective insertion ports 231 to 233. Whether or not the connecting device 1 includes these shutters 24 is arbitrary.

The connecting portion 25 is composed of a first blade receiving portion 251, a second blade receiving portion 252, and a third blade receiving portion 253. The first blade receiving portion 251 and the second blade receiving portion 252 are provided at positions inside the body 21 facing the first insertion port 231 and the second insertion port 232, respectively. The third blade receiving portion 253 is provided at a position facing the third insertion port 233 inside the body 21. The first blade receiving portion 251 and the second blade receiving portion 252 are configured so that a pair of plug blades of the plug are in contact with each other and connected to each other. The third blade receiving portion 253 is configured so that the pins of the plug are contacted and connected.

Therefore, the pair of blades and pins of the plug are inserted into the first insertion port 231 and the second insertion port 232 and the third insertion port 233, respectively, so that the first blade receiving portion 251 and the second blade receiving portion 251 and the second blade receiving portion are inserted. 252, electrically connected to the third blade receiving portion 253. In the following, connecting the pair of blades and pins of the plug to the first blade receiving portion 251 and the second blade receiving portion 252, and the third blade receiving portion 253, respectively, means "connecting the plug to the outlet block 2". That is.

As shown in FIGS. 1A, 1B, and 5, the breaker block 3 includes a housing 31, a circuit breaker 34, a ground terminal 35, and a test switch 36. Further, the breaker block 3 further includes a handle 37 as a part of the circuit breaker 34.

The housing 31 is formed in a box shape, for example, by using a resin material. The housing 31 is composed of a box-shaped body 32 having one surface (front surface) open and a box-shaped cover 33 having one surface (rear surface) open. Specifically, the housing 31 is configured by joining the body 32 and the cover 33 in a state where the opening of the body 32 and the opening of the cover 33 are butted against each other. Further, the cover 33 is provided with a rectangular opening 331. A part of the handle 37 housed inside the housing 31 is exposed from the opening 331.

The circuit breaker 34 is housed inside the housing 31. As shown in FIG. 5, the circuit breaker 34 is connected between the connection portion 25 and the AC power supply (power supply) AC1. The circuit breaker 34 includes a contact that electrically connects the connection portion 25 and the AC power supply AC1, and a mover that opens and closes the contact. When the predetermined condition is satisfied, the circuit breaker 34 cuts off the pair of electric lines L1 connecting the connection portion 25 and the AC power supply AC1 by operating the mover to open the contacts. The pair of electric circuits L1 are power supply paths from the AC power supply AC1 to the connection portion 25.

In this embodiment, the circuit breaker 34 is an earth leakage breaker. The circuit breaker 34 is configured to detect an imbalance of current flowing through an electric wire passing through a zero-phase-sequence current transformer (ZCT) 341. Then, when the circuit breaker 34 detects the imbalance of the current due to the electric leakage, the circuit breaker 34 cuts off the pair of electric circuits L1.

Further, the circuit breaker 34 may be configured to cut off the pair of electric circuits L1 when an overcurrent or a short circuit is detected in addition to the electric leakage. This configuration can be realized by providing an overcurrent trip device. In addition, the circuit breaker 34 may be configured to cut off the pair of electric circuits L1 when a tracking phenomenon is detected. This configuration can be realized by providing an electrode for detecting the current generated by the occurrence of the tracking phenomenon between the first blade receiving portion 251 and the second blade receiving portion 252.

As shown in FIG. 1A, the ground terminal 35 is provided so as to project forward from one surface (front surface) of the cover 33. As shown in FIG. 5, the ground terminal 35 is electrically connected to the ground E1 via terminals T5, T8, and T9 described later. The ground terminal 35 is a terminal for connecting the ground wire P2 (see FIG. 6). The ground wire P2 is connected to the device to be used together with a two-pole plug (so-called 2P plug) P1 having a pair of voltage pole blades. As shown in FIG. 6, when the 2-pole plug P1 is connected to the outlet block 2, the ground wire P2 is electrically connected to the ground E1 by connecting the ground wire P2 to the ground terminal 35.

As shown in FIG. 1A, the test switch 36 is a push button provided so as to be embedded in the cover 33. The test switch 36 is used to test the operation of the circuit breaker 34. The circuit breaker 34 is configured so that when the test switch 36 is operated, a pseudo current of the leakage current flows through the electric wire penetrating the zero-phase current transformer 341. Therefore, if the circuit breaker 34 cuts off the pair of electric circuits L1 when the user (for example, the builder) operates the test switch 36, the user can confirm that the circuit breaker 34 is operating normally. can.

As shown in FIG. 2, the handle 37 includes a handle body 370, a bearing 371, and a rotating shaft 372. The handle body 370 is made of, for example, a resin material. The bearing 371 is formed integrally with the handle body 370, and the rotating shaft 372 is inserted through the bearing 371. The rotating shaft 372 is attached to the housing 31 in a state of being inserted through the bearing 371.

The handle 37 is mechanically connected to the mover of the circuit breaker 34 and is configured to interlock with the mover. Then, as shown in FIG. 2, the handle 37 is configured to rotate about the rotation shaft 372 between the on position and the off position in conjunction with the opening and closing of the circuit breaker 34.

In the on position, as shown in FIG. 1A, only the exposed surface 373 and the convex portion 374 of the handle 37, which will be described later, are exposed from the opening 331, and the other parts of the handle 37 are housed inside the housing 31. There is. That is, when the handle 37 is in the on position, the user can only touch the exposed surface 373 and the convex portion 374. Further, in the off position, as shown in FIG. 1B, the handle body 370 is in a position rotated by a predetermined angle about the rotation shaft 372 from the on position. That is, when the handle 37 is in the off position, most of the handle 37 is exposed from the opening 331.

In this embodiment, the handle 37 rotates from the on position to the off position when the circuit breaker 34 opens the contacts to cut off the pair of electric circuits L1. Specifically, when the circuit breaker 34 operates the mover to open the contact, the handle 37 rotates from the on position to the off position in conjunction with the mover. Then, the handle 37 is latched in the off position by interlocking with the mover of the circuit breaker 34. Further, the handle 37 rotates from the off position to the on position by applying a predetermined rotational force in the off position. Specifically, when the user manually operates the handle 37 to rotate the handle 37 from the off position to the on position, the mover of the circuit breaker 34 operates in conjunction with the handle 37, and the circuit breaker 34 The contacts are closed.

The handle body 370 includes an exposed surface 373 and a convex portion 374. As shown in FIGS. 1A and 2, the exposed surface 373 is exposed from the opening 331 at the on position of the handle 37. Further, the exposed surface 373 is substantially flush with one surface (that is, the front surface of the cover 33) provided with the opening 331 in the housing 31 at the on position of the handle 37.

The convex portion 374 protrudes from the exposed surface 373 as shown in FIGS. 1A and 2. Specifically, the convex portion 374 projects diagonally downward from the lower end edge of the exposed surface 373. That is, the convex portion 374 protrudes from the end edge (here, the lower end edge) of the exposed surface 373 that is farthest from the rotation shaft 372.

The convex portion 374 has an inclined surface 375. The inclined surface 375 is inclined with respect to the exposed surface 373, and is configured to receive a rotational force F1 for rotating the handle 37 from the on position to the off position. Here, the rotational force F1 is a force in a direction parallel to the tangent line of the arc-shaped orbit of the handle body 370 centered on the rotation shaft 372.

In the present embodiment, the inclined surface 375 is a surface substantially orthogonal to the rotational force F1 at the on position of the handle 37. Of course, the inclined surface 375 does not have to be orthogonal to the rotational force F1 at the on position of the handle 37, and may be a surface that can receive the rotational force F1.

In the present embodiment, the breaker block 3 includes five terminals T1 to T5 as shown in FIG. Further, as shown in FIG. 5, the outlet block 2 includes four terminals T6 to T9. Each of the terminals T1 to T9 is composed of, for example, a quick-connect terminal. As shown in FIG. 4, in the body 22 of the outlet block 2, insertion holes 221 to 224 for inserting electric wires are provided at positions corresponding to each of the terminals T6 to T9. Further, as shown in FIG. 4, in the body 32 of the breaker block 3, insertion holes 321 to 325 for inserting electric wires are provided at positions corresponding to each of the terminals T1 to T5.

As shown in FIG. 5, the terminals T1 and T2 are electrically connected to the AC power supply AC1 respectively. That is, the terminals T1 and T2 are input terminals used for electrically connecting the breaker block 3 to the AC power supply AC1. The terminals T3 and T4 are output terminals for outputting the AC output from the AC power supply AC1. The terminal T5 is electrically connected to the ground terminal 35.

The terminal T6 is electrically connected to the terminal T3 of the breaker block 3 via the electric wire C1 (see FIG. 4). The terminal T7 is electrically connected to the terminal T4 of the breaker block 3 via the electric wire C2 (see FIG. 4). That is, the terminals T6 and T7 are input terminals electrically connected to the output terminals (terminals T3 and T4) of the breaker block 3. The terminal T8 is a terminal for electrically connecting to the earth E1 and is electrically connected to the earth E1 via an electric wire. The terminal T9 is electrically connected to the terminal T5 of the breaker block 3 via the electric wire C3 (see FIG. 4). Therefore, the ground terminal 35 of the breaker block 3 is electrically connected to the ground E1 via the terminals T5, T8, and T9.

The terminals T6 and T7 are electrically connected to the first blade receiving portion 251 and the second blade receiving portion 252 of the connecting portion 25, respectively. Therefore, the first blade receiving portion 251 and the second blade receiving portion 252 are electrically connected to the AC power supply AC1 via the terminals T1, T2, T3, T4, T6, and T7. Therefore, by connecting the plug of the device to be used to the outlet block 2, power can be supplied from the AC power supply AC1 to the device. Further, the terminal T8 is electrically connected to the third blade receiving portion 253. Therefore, by connecting the plug of the device to be used to the outlet block 2, the ground terminal of the device is electrically connected to the ground E1.

Hereinafter, the operation of the connecting device 1 of the present embodiment will be described. The connecting device 1 of the present embodiment is used in a state where the handle 37 is in the on position in a normal time when an abnormality such as an electric leakage does not occur. In the normal state, when the plug of the device to be used is connected to the outlet block 2, power can be supplied from the AC power supply AC1 to the device. Here, for example, when an electric leakage occurs, the circuit breaker 34 operates to cut off the pair of electric circuits L1. Therefore, in the event of an abnormality, power is not supplied from the AC power supply AC1 to the device. At this time, the handle 37 rotates from the on position to the off position in conjunction with the operation of the circuit breaker 34 to cut off the pair of electric circuits L1.

After that, the handle 37 is latched in the off position until the user manually turns the handle 37 on. The on operation means an operation of applying a rotational force required for the handle 37 to move from the off position to the on position to the handle 37. After resolving the abnormality, the user manually turns on the handle 37 at an arbitrary timing to move the handle 37 to the on position. As the handle 37 moves to the on position, the circuit breaker 34 releases the circuit breaker, so that the pair of electric circuits L1 become conductive again. Therefore, electric power can be supplied from the AC power supply AC1 to the device.

The connecting device 1 of the present embodiment is different from the connecting device in which the user cannot manually turn off the handle 37, and the user can manually turn off the handle 37 even when the handle 37 is in the on position. It is possible. The off operation means an operation of applying a rotational force required for the handle 37 to move from the on position to the off position to the handle 37.

That is, in the connecting device 1 of the present embodiment, when the handle 37 is in the on position, the user hooks the fingernail on the inclined surface 375 of the convex portion 374 and applies the rotational force F1 to the handle 37. The 37 can be manually rotated from the on position to the off position. In addition, the user can also apply the rotational force F1 to the handle 37 by hooking the tip of a tool S1 (see FIG. 9) such as a flat-blade screwdriver on the inclined surface 375 of the convex portion 374. As described above, the connecting device 1 of the present embodiment is provided with the convex portion 374 to allow the user to manually turn off the handle 37.

Here, when the user is allowed to manually turn off the handle, the appearance of the connecting device may be deteriorated by exposing the handle from the opening so that the user can easily perform the off operation. For example, a connecting device in which the convex portion 374 does not have the inclined surface 375 will be described as an example. In this connection device, when the user manually turns off the handle 37, the user needs to apply the rotational force F1 to the handle 37 while pinching the convex portion 374 or pressing the pad of the finger against the convex portion 374. be. Therefore, it is necessary to increase the amount of protrusion of the convex portion 374 so that the user can easily pinch the convex portion 374 or the user can press the pad of the finger against the convex portion 374. The protruding amount means the amount (length in the front-rear direction) of the convex portion 374 protruding from the opening 331 when the handle 37 is in the on position. Then, when the protruding amount of the convex portion 374 becomes large, the convex portion 374 becomes conspicuous, which may deteriorate the appearance of the connecting device.

On the other hand, in the connecting device 1 of the present embodiment, it is easy to apply the rotational force F1 to the handle 37 as long as the fingernail and the tip of the tool S1 can be hooked on the inclined surface 375. Therefore, in the connecting device 1 of the present embodiment, the amount of protrusion of the convex portion 374 can be suppressed while ensuring the ease of manual off operation of the handle 37. That is, the connecting device 1 of the present embodiment does not have a poor appearance as compared with the connecting device in which the convex portion 374 does not have the inclined surface 375. Further, in the connecting device 1 of the present embodiment, the exposed surface 373 is substantially flush with the front surface of the cover 33 at the off position of the handle 37, so that the handle 37 is inconspicuous.

As described above, in the connecting device 1 of the present embodiment, the handle 37 includes a convex portion 374 protruding from the exposed surface 373 of the handle body 370. Therefore, the connecting device 1 of the present embodiment allows the user to manually turn off the handle 37. The convex portion 374 is inclined with respect to the exposed surface 373, and has an inclined surface 375 that receives the rotational force F1. Therefore, the connecting device 1 of the present embodiment can suppress the amount of protrusion of the convex portion 374 while allowing the handle 37 to be manually turned off, and the appearance is unlikely to deteriorate.

The connecting device 1 of the present embodiment does not positively recommend that the user manually turn off the handle 37. The connecting device 1 of the present embodiment is provided with the inclined surface 375 on the convex portion 374 to prevent the handle 37 from being unintentionally turned off by the user. That is, in the connecting device 1 of the present embodiment, the convex portion 374 is provided with the inclined surface 375 as described above, so that the protruding amount of the convex portion 374 is suppressed. Therefore, in the connecting device 1 of the present embodiment, since the user's feet and the head of the vacuum cleaner are unlikely to be caught by the convex portion 374, it is unlikely that the user unintentionally applies the rotational force F1 to the handle 37.

In particular, the inclined surface 375 is preferably provided so as not to be seen from the vertical direction of one surface (that is, the front surface of the cover 33) where the opening 331 of the housing 31 is provided when the handle 37 is in the on position. In this configuration, it is difficult for an external force to be applied to the inclined surface 375 and the handle 37 is unlikely to be erroneously turned off, except when the user intentionally turns off the handle 37 with a fingernail or the tip of the tool S1.

Here, the exposed surface 373 does not have to be flush with one surface (that is, the front surface of the cover 33) provided with the opening 331 of the housing 31 at the on position of the handle 37, as long as it is substantially flush with each other. good. For example, at the on position of the handle 37, the height α between the exposed surface 373 in the front-rear direction and the front surface of the cover 33 and the height between one end (front end) of the convex portion 374 in the front-rear direction and the front surface of the cover 33. It suffices that β satisfies the relationship of α ≧ 0 and β> 0. The height α is a positive value if the exposed surface 373 is behind the front surface of the cover 33, and a negative value if it is in front of the cover 33. Further, the height β is a positive value if one end of the convex portion 374 is in front of the front surface of the cover 33, and is a negative value if it is behind. That is, in the on position of the handle 37, if the convex portion 374 projects forward from the front surface of the cover 33, the exposed surface 373 may be located rearward from the front surface of the cover 33.

By the way, as shown in FIG. 6, when the connecting device 1 of the present embodiment is used in a state of being mounted on the wall A1, the outlet block 2 and the breaker block 3 are arranged side by side in the vertical direction (vertical direction). ing. Then, in the present embodiment, the breaker block 3 is arranged below the outlet block 2. This configuration is particularly suitable when the 2-pole plug P1 is connected to the outlet block 2. That is, when the 2-pole plug P1 is connected to the outlet block 2, the ground wire P2 is connected to the ground terminal 35, but even if the ground wire P2 falls off from the ground terminal 35 during construction, the ground wire P2 is 2 It is difficult to contact the blade of the pole plug P1. Therefore, this configuration can improve the safety of construction. Of course, it is optional whether or not the above configuration is adopted. That is, the breaker block 3 may be arranged above the outlet block 2.

Further, as described above, the connection device 1 of the present embodiment includes a ground terminal 35 for connecting the ground wire P2. Then, in the present embodiment, the handle 37 is arranged below the ground terminal 35 in the vertical direction. Therefore, the user can operate the handle 37 off without being disturbed by the ground terminal 35. Of course, it is optional whether or not the above configuration is adopted. That is, the handle 37 may be arranged on the upper side of the ground terminal 35 in the vertical direction.

In the present embodiment, the size of the body 21 of the outlet block 2 is not limited to the one-module size, and may be another size. Further, the dimensions of the housing 31 of the breaker block 3 are not limited to the dimensions of the two modules, and may be other dimensions. Further, the outlet block 2 does not have to include the third blade receiving portion 253. That is, the outlet block 2 may have a configuration in which only the 2-pole plug P1 can be connected instead of the plug with a grounding pole.

Further, the connecting device 1 of the present embodiment is assumed to be used indoors. Therefore, the circuit breaker 34 used in the connection device 1 of the present embodiment is different from the circuit breaker used in, for example, a residential distribution board or a commercial distribution board.

<First modification>
Hereinafter, the connecting device 1A of the first modification of the embodiment will be described. However, the connecting device 1A of the first modification is common to the connecting device 1 of the embodiment except for the configuration of the housing 31. Therefore, in the following, description of the configuration common to the connection device 1 of the embodiment will be omitted.

The connecting device 1A of the first modification has a gap 38 as shown in FIGS. 7A and 7B. The gap 38 is provided between one end edge (lower end edge) facing the convex portion 374 and the convex portion 374 in the opening 331 of the housing 31. The gap 38 may have a size that allows the user's fingernail or the tip of the tool S1 to be inserted, for example.

In the connecting device 1A of this modification, the user can insert the fingernail and the tip of the tool S1 into the gap 38, so that the fingernail and the tip of the tool S1 can be easily hooked on the inclined surface 375 of the convex portion 374. .. Therefore, in the connecting device 1A of the present modification, as compared with the case where the convex portion 374 has only the inclined surface 375, the user can easily apply the rotational force F1 to the handle 37, and the manual off operation of the handle 37 can be easily performed. It can be carried out.

<Second modification>
Hereinafter, the connecting device 1B of the second modification of the embodiment will be described. However, the connecting device 1B of the second modification is common to the connecting device 1 of the present embodiment except for the configuration of the handle 37. Therefore, in the following, description of the configuration common to the connection device 1 of the embodiment will be omitted.

In the connecting device 1B of the second modification, as shown in FIG. 8, the handle body 370 includes a recess 376. The recess 376 is provided on the inclined surface 375. Further, the recess 376 is recessed along the rotation direction of the handle 37. In other words, the recess 376 is recessed along the direction of the rotational force F1.

In the connecting device 1B of this modification, the user can hook the fingernail or the tip of the tool S1 on the recess 376. Therefore, in the connecting device 1B of the present modification, as compared with the case where the convex portion 374 has only the inclined surface 375, the user can easily apply the rotational force F1 to the handle 37, and the manual off operation of the handle 37 can be easily performed. It can be carried out.

<Third modification example>
Hereinafter, the connecting device 1C of the third modification of the embodiment will be described. However, the connecting device 1C of the third modification is common to the connecting device 1 of the embodiment except for the configuration of the housing 31. Therefore, in the following, description of the configuration common to the connection device 1 of the embodiment will be omitted.

In the connecting device 1C of the third modification, as shown in FIG. 9A, the housing 31 includes a facing surface 332. The facing surface 332 is provided at one end edge (lower end edge) facing the convex portion 374 in the opening 331 of the housing 31. Further, the facing surface 332 faces the inclined surface 375 at the on position of the handle 37. Further, the facing surface 332 is parallel to the inclined surface 375 at the on position of the handle 37.

In the connecting device 1C of the present modification, the user can touch the tip of a tool such as a fingernail or a screwdriver to the inclined surface 375 of the convex portion 374 along the facing surface 332, so that the finger can be applied to the inclined surface 375. It is easy to catch the fingernail or the tip of the tool S1. Therefore, in the connecting device 1C of the present modification, as compared with the case where the facing surface 332 is not provided, the user can easily apply the rotational force F1 to the handle 37, and the handle 37 can be easily manually turned off. ..

Further, in the connecting device 1C of the present modification, as shown in FIG. 9B, the handle 37 may include a recess 377. The recess 377 is provided so that its inner surface is continuous with the inclined surface 375. Further, the recess 377 is recessed in the direction along the inclined surface 375. In this configuration, the user can apply the rotational force F1 to the handle 37 by, for example, inserting the tip of the tool S1 into the recess 377. Therefore, in this configuration, the amount of protrusion of the convex portion 374 can be further suppressed as compared with the case where the recess 377 is not provided, and the appearance is unlikely to deteriorate.

<Fourth modification>
Hereinafter, the connecting device 1D of the fourth modification of the embodiment will be described. However, the connecting device 1D of the fourth modification is common to the connecting device 1 of the embodiment except for the configuration of the handle 37. Therefore, in the following, description of the configuration common to the connection device 1 of the embodiment will be omitted.

In the connecting device 1D of the fourth modification, as shown in FIG. 10, the handle 37 includes a convex portion 378 instead of the convex portion 374 of the connecting device 1 of the embodiment. The convex portion 377 projects forward and downward from the center of the exposed surface 373 so as to be inclined. Further, the convex portion 378 has a larger amount of protrusion from the opening 331 when the handle 37 is in the on position than the convex portion 374.

The convex portion 378 has an inclined surface 379. The inclined surface 379 is inclined with respect to the exposed surface 373, and is configured to receive the rotational force F1. Further, the inclined surface 379 is provided so as not to be seen from the vertical direction of one surface (that is, the front surface of the cover 33) where the opening 331 of the housing 31 is provided when the handle 37 is in the on position.

The connecting device 1D of the present modification allows the user to manually turn off the handle 37, as in the connecting device 1 of the embodiment. The convex portion 378 is inclined with respect to the exposed surface 373, and has an inclined surface 379 that receives the rotational force F1. Therefore, the connecting device 1D of the present modification can suppress the protruding amount of the convex portion 378 while allowing the handle 37 to be manually turned off, and the appearance is unlikely to deteriorate.

By the way, the connecting device 1 of the present embodiment is at least one of the gap 38 of the connecting device 1A of the first modification, the recess 376 of the connecting device 1B of the second modification, and the facing surface 332 of the connecting device 1C of the third modification. It may be configured in combination with one or the other. In addition, the connecting device 1D of the fourth modification is at least the gap 38 of the connecting device 1A of the first modification, the recess 376 of the connecting device 1B of the second modification, and the facing surface 332 of the connecting device 1C of the third modification. It may be configured in combination with any one. Further, when the connecting device 1 (or the connecting device 1D) includes the facing surface 332, the recess 377 may be further provided.

<Connection system>
Hereinafter, the connection system 100 according to the embodiment of the present invention will be described. As shown in FIGS. 11A and 11B, the connection system 100 of the present embodiment includes a connection device 1E and an expansion outlet 5 different from the outlet block 2. The extension outlet 5 is used, for example, in a state of being attached to the wall A1 (see FIG. 6). Here, the connecting device 1E is common to the connecting device 1 of the embodiment except that the terminals T9 and T10 are provided. Therefore, in the following, description of the configuration common to the connection device 1 of the embodiment will be omitted.

Note that FIG. 11A is a view of the connecting device 1E and the extension outlet 5 as viewed from the rear. Further, in FIG. 11B, the third blade receiving portion 253, the ground terminal 35, the ground E1, and the terminals T5, T8, and T9 are not shown.

As shown in FIG. 11B, the connection device 1E includes terminals (input terminals) T6 and T7 and terminals (expansion terminals) T10 and T11. The terminals T6 and T7 and the terminals T10 and T11 are electrically connected in parallel to the terminals (output terminals) T3 and T4 of the breaker block 3. Like the terminals T1 to T9, the terminals T10 and T11 are each composed of quick-connect terminals. Further, as shown in FIG. 11A, insertion holes 225 and 226 for inserting electric wires are provided at positions corresponding to the terminals T10 and T11 in the body 22 of the outlet block 2.

As shown in FIGS. 11A and 11B, the extension outlet 5 includes a body 51 and a connection portion 52. The body 51 is formed in a box shape by, for example, a resin material. The connecting portion 52 is housed inside the body 51. The connecting portion 52 includes a first blade receiving portion 521 and a second blade receiving portion 522. The first blade receiving portion 521 and the second blade receiving portion 522 are configured so that a pair of plug blades of a two-pole plug P1 (see FIG. 6) are in contact with each other and connected to each other. At positions facing each of the first blade receiving portion 251 and the second blade receiving portion 252 of the body 51, an insertion port into which a pair of two-pole plug P1 is inserted is provided.

Further, the expansion outlet 5 includes four terminals T12 to T15. The terminals T12 to T15 are each composed of quick-connect terminals. In the body 51, insertion holes 511 to 514 for inserting electric wires are provided at positions corresponding to each of the terminals T12 to T15. The terminals T12 and T13 are electrically connected to the terminals T10 and T11 of the outlet block 2 via electric wires C4 and C5, respectively. The terminals T14 and T15 are terminals for sending and connecting to another expansion outlet. The terminals T12 and T13 are electrically connected to the first blade receiving portion 521 and the second blade receiving portion 522 of the connecting portion 52, respectively. Therefore, the first blade receiving portion 521 and the second blade receiving portion 522 are electrically connected to the terminals T6 and T7 of the outlet block 2 via the terminals T10, T11, T12, and T13. That is, the first blade receiving portion 521 and the second blade receiving portion 522 are electrically connected to the AC power supply AC1. Therefore, by connecting the plug of the device to be used to the extension outlet 5, power can be supplied from the AC power supply AC1 to the device.

Here, the connection system 101 will be described as a comparative example of the connection system 100 of the present embodiment. As shown in FIG. 12, the connection system 101 of the comparative example includes a connection device 10 and an expansion outlet 5. The connecting device 10 is common to the connecting device 1E except that the terminals T101 and T102 are provided instead of the terminals T10 and T11 and that the outlet block 2 and the breaker block 3 are integrally configured. Therefore, in the following, description of the configuration common to the connecting device 1E will be omitted. In FIG. 12, the third blade receiving portion 253, the ground terminal 35, the ground E1, and the terminals T5, T8, and T9 are not shown.

The connection device 10 includes terminals T101 and T102 for sending and connecting to the extension outlet 5. The terminals T101 and T102 are electrically connected to the terminals T1 and T2 on the input side of the circuit breaker 34, respectively. Further, the terminals T101 and T102 are electrically connected to the terminals T12 and T13 of the extension outlet 5 via electric wires, respectively. Therefore, the first blade receiving portion 521 and the second blade receiving portion 522 are electrically connected to the terminals T1 and T2 via the terminals T101, T102, T12, and T13.

In the connection system 101 of the comparative example, the extension outlet 5 is electrically connected to the AC power supply AC1 without going through the circuit breaker 34. Therefore, in the connection system 101 of the comparative example, even if the circuit breaker 34 cuts off the pair of electric circuits L1 due to the occurrence of electric leakage, for example, the pair of electric circuits connecting the connection portion 52 and the AC power supply AC1 are not cut off. That is, in the connection system 101 of the comparative example, the cutoff function of the connection device 10 is not applied to the extension outlet 5.

On the other hand, in the connection system 100 of the present embodiment, the expansion outlet 5 is electrically connected to the terminals (output terminals) T3 and T4 of the breaker block 3 via the terminals (expansion terminals) T10 and T11. .. Therefore, in the connection system 100 of the present embodiment, when the circuit breaker 34 cuts off the pair of electric circuits L1 due to, for example, an electric leakage, the pair of electric circuits connecting the connection portion 52 and the AC power supply AC1 are also cut off.

That is, in the connection system 100 of the present embodiment, the blocking function of the connection device 1E can be applied not only to the outlet block 2 but also to the extension outlet 5. In other words, the connection device 1E can apply the cutoff function to the extension outlet 5 connected to the terminals T10 and T11 by providing the terminals (expansion terminals) T10 and T11. Therefore, in the connection system 100 of the present embodiment, it is not necessary to newly provide a circuit breaker at the extension outlet 5.

By the way, in the connection system 100 of the present embodiment, the connection device 1E faces the gap 38 of the connection device 1A of the first modification, the recess 376 of the connection device 1B of the second modification, and the connection device 1C of the third modification. It may be configured in combination with at least one of the surfaces 332. In addition, the connecting device 1E may include a convex portion 378 of the connecting device 1D of the fourth modification instead of the convex portion 374.

Further, in the connection system 100 of the present embodiment, the extension outlet 5 is configured to be connected to the 2-pole plug P1, but may be configured to be connected to a plug with a grounding pole. Further, the connection system 100 of the present embodiment may be configured by sending and connecting a plurality of additional outlets 5 to the connection device 1.

1,1A, 1B, 1C, 1D, 1E Connection device 2 Outlet block 25 Connection part 3 Breaker block 31 Housing 331 Opening 332 Facing surface 34 Circuit breaker 37 Handle 370 Handle body 372 Rotating shaft 373 Exposed surface 374,378 Convex part 375 Inclined surface 376 Recessed 38 Gap 5 Expansion outlet 100 Connection system AC1 AC power supply (power supply)
F1 rotational force T3, T4 terminal (output terminal)
T6, T7 terminals (input terminals)
T10, T11 terminals (expansion terminals)

Claims (6)

An outlet block with a connection and
A breaker block having a circuit breaker connected between the connection and the power supply is provided.
The breaker block is
A housing with an opening on one side,
Further having a handle that rotates about a rotation axis between the on position and the off position in conjunction with the opening and closing of the circuit breaker.
The handle
A handle body having an exposed surface exposed from the opening at the on position and substantially flush with the one surface provided with the opening in the housing.
With a convex portion protruding from the exposed surface,
The convex portion has an inclined surface that is inclined with respect to the exposed surface and receives a rotational force for rotating the handle from the on position to the off position.
One end edge of the opening of the housing faces the inclined surface at the on position of the handle .
Wherein at on position, the connection device characterized in that it have a gap provided between the projection and the opposing end edges and the convex portion in the opening of the housing. The connection device according to claim 1, wherein the handle body is further provided with a recess provided on the inclined surface and recessed along the rotation direction of the handle. An outlet block with a connection and
A breaker block having a circuit breaker connected between the connection and the power supply is provided.
The breaker block is
A housing with an opening on one side,
Further having a handle that rotates about a rotation axis between the on position and the off position in conjunction with the opening and closing of the circuit breaker.
The handle
A handle body having an exposed surface exposed from the opening at the on position and substantially flush with the one surface provided with the opening in the housing.
With a convex portion protruding from the exposed surface,
The convex portion has an inclined surface that is inclined with respect to the exposed surface and receives a rotational force for rotating the handle from the on position to the off position.
A connecting device characterized in that one end edge of the opening of the housing facing the convex portion faces the inclined surface at the on position of the handle and includes an opposing surface parallel to the inclined surface. The outlet block and the breaker block are arranged side by side in the vertical direction.
The connecting device according to any one of claims 1 to 3, wherein the breaker block is arranged below the outlet block. The connection device according to any one of claims 1 to 4, wherein the outlet block includes an input terminal and an extension terminal that are electrically connected in parallel to the output terminal of the breaker block. The connecting device according to claim 5 and
Equipped with an additional outlet different from the outlet block
The connection system, wherein the expansion outlet is electrically connected to the output terminal of the breaker block via the expansion terminal.

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