JP2019165604A - Sending terminal cover and distribution board - Google Patents

Abstract

To increase the safety of a sending terminal.SOLUTION: A sending terminal cover 9 includes a front board 91, a positioning rib 97 and a regulation member 95. The front board 91 covers the front parts of a plurality of sending terminals 81, 82, and 83, which are connected to a plurality of conductive bars 41, 42, and 43 of a distribution board 1, respectively, and are also connected to the external load of the distribution board 1. The positioning rib 97 is connected to the front board 91 and can determine the position of the front board 91 in the plane intersecting with the front-back direction. The regulation member 95 is connected to the front board 91 and is elastic in one direction intersecting with the front-back direction, and regulates the front-back movement of the front board 91 while being suspended in the inside of the distribution board 1.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates generally to a feed terminal cover and a distribution board, and more particularly to a feed terminal cover for protecting a feed terminal of a distribution board and a distribution board including the same.

  Patent Document 1 discloses an example of a conventional distribution board. In the distribution board of Patent Document 1, a feed terminal is connected to an end of the branch breaker opposite to the main breaker side.

JP 2007-295667 A

  In the distribution board of Patent Document 1, the feed terminal is exposed. For this reason, in the distribution board of patent document 1, it is difficult to work so that a user may not touch a feed terminal. Moreover, in the distribution board of patent document 1, dust may adhere to a sending terminal. That is, the distribution board of Patent Document 1 has a problem that the safety of the feed terminal is not high.

  This indication is made in view of the above-mentioned subject, and it aims at providing the feed terminal cover and distribution board which can improve the safety of a feed terminal.

  A feed terminal cover according to an aspect of the present disclosure includes a front plate, a positioning rib, and a regulating member. The front plate is connected to a plurality of conductive bars of the distribution board, and covers the front of a plurality of feed terminals to which loads outside the distribution board are connected. The positioning rib is connected to the front plate and positions the front plate in a plane intersecting the front-rear direction. The restricting member is connected to the front plate, has elasticity that can be bent in one direction intersecting the front-rear direction, and is hooked on an inner unit of the distribution board in the state of the front plate. Restrict movement in the front-rear direction.

  A distribution board according to an aspect of the present disclosure includes the feed terminal cover, the plurality of conductive bars, and the plurality of feed terminals.

  According to the present disclosure, it is possible to improve the safety of the feed terminal.

FIG. 1 is a partially exploded perspective view of a main part of a distribution board according to an embodiment of the present disclosure with an outer lid and an inner lid removed. FIG. 2 is a front view showing a state in which the outer lid and the inner lid of the distribution board are removed. FIG. 3 is a perspective view of the above distribution board. FIG. 4 is a perspective view of a main part of the above distribution board. FIG. 5 is a perspective view seen from the front of the feed terminal cover used in the above distribution board. FIG. 6 is a perspective view of the same feed terminal cover as seen from the rear. FIG. 7 is a partially broken perspective view of the main part of the above distribution board. FIG. 8 is a perspective view showing a state where the cover plate of the feed terminal cover is cut off.

  Embodiments and modifications described below are merely examples of the present disclosure. The present disclosure is not limited to the embodiment and the modification, and various modifications can be made depending on the design and the like as long as the technical idea according to the present disclosure is not deviated from the embodiment and the modification. It can be changed. Each drawing described in the following embodiments and modifications is a schematic diagram, and the ratio of the size and thickness of each component in the drawing does not necessarily reflect the actual dimensional ratio. Absent.

(1) Embodiment Hereinafter, the feed terminal cover 9 of the present embodiment and the distribution board 1 including the same will be described with reference to FIGS.

In this embodiment, although the case where the distribution board 1 is used for a detached house is illustrated, not only this example but the distribution board 1 may be used for each dwelling unit of a housing complex, an office, a store, etc. Good. In the following description, unless otherwise specified, the top, bottom, left, and right of FIG. 2 are defined as the top, bottom, left, and right of the distribution board 1, and the direction perpendicular to the paper surface of FIG. ). Specifically, the direction in which the main breaker 2 and the branch breaker 3 are arranged is referred to as the left-right direction, and the direction in which the feed terminal cover 9 and the feed terminal block 8 are arranged is referred to as the front-rear direction. A direction perpendicular to the left-right direction and the front-rear direction is referred to as the up-down direction. However, these directions are not intended to prescribe the direction in which the distribution board 1 is attached. As shown in FIGS. 1 and 2, the distribution board 1 of the present embodiment includes a cabinet 10, a main breaker 2, and a plurality of A branch breaker 3, a current measuring device 5, a measuring adapter 6, a feed terminal block 8, and a feed terminal cover 9 are provided.

  As shown in FIGS. 2 and 3, the cabinet 10 includes a cabinet body 11, an inner lid 16, and an outer lid 15.

  As shown in FIG. 2, the cabinet body 11 is formed in a box shape having an open front surface. The cabinet body 11 accommodates a main breaker 2, a plurality of branch breakers 3, a current measuring device 5, and a measuring adapter 6. Further, the bottom wall of the cabinet body 11 has a window hole 12 penetrating in the front-rear direction, and wiring can be drawn into the interior of the cabinet body 11 from the back of the wall through the window hole 12.

  As shown in FIG. 3, an inner lid 16 and an outer lid 15 that are movable between a position where the front surface of the cabinet body 11 is closed and a position where it is opened are attached to the cabinet body 11.

  As shown in FIG. 2, the main breaker 2 is arranged at a position slightly left of the center in the left-right direction inside the cabinet body 11. Note that the position of the main breaker 2 in the cabinet body 11 may be another position such as the right side of the center. The main breaker 2 includes a primary side terminal 21 and a secondary side terminal. Since the distribution board 1 of the present embodiment assumes a single-phase three-wire system as a distribution system, a single-phase three-wire lead-in line of a system power supply (commercial power supply) is electrically connected to the primary side terminal 21 of the main breaker 2. Connected. Further, the secondary terminal of the main breaker 2 includes a first voltage pole (L1 phase) conductive bar 41, a second voltage pole (L2 phase) conductive bar 42, and a neutral pole (N phase) conductive bar 43. Is connected. Each of the conductive bars 41, 42, 43 (see FIG. 1) is formed in a long plate shape that is long in the left-right direction by a conductive member, and is the center of the main body breaker 2 at the center in the vertical direction inside the cabinet body 11. Arranged at the right position.

  The plurality of branch breakers 3 are divided into an upper side and a lower side of the conductive bar 43 of the neutral electrode, and a plurality of branch breakers 3 are arranged in the left-right direction. In the present embodiment, as shown in FIG. 2, twelve branch breakers 3 are arranged in the left-right direction above the conductive bar 43 of the neutral electrode. Further, ten branch breakers 3 are arranged below the neutral conductive bar 43 so as to be arranged in the left-right direction. Two spacers 30 are arranged on the right side of the lower ten branch breakers 3 so as to be arranged in the left-right direction, and a secondary interconnection breaker 100 is arranged on the right side of the spacers 30. .

  Each branch breaker 3 includes a pair of primary terminals and a pair of secondary terminals. The branch breaker 3 is available for 100V and 200V. The pair of primary terminals provided in the branch breaker 3 for 100 V are electrically connected to one of the conductive bar 41 of the first voltage electrode and the conductive bar 42 of the second voltage electrode and the conductive bar 43 of the neutral electrode, respectively. Connected to. The pair of primary terminals provided in the 200V branch breaker 3 are electrically connected to the first voltage electrode conductive bar 41 and the second voltage electrode conductive bar 42, respectively. In addition, a corresponding electric circuit is electrically connected to the secondary side terminal of the branch breaker 3. The electric circuit connected to the secondary terminal of each branch breaker 3 is loaded with, for example, a lighting device, an air conditioner, a television receiver, a hot water supply device, or a wiring device such as an outlet or a wall switch as a load. Two or more are connected.

  The spacer 30 is formed from a material having electrical insulation properties, for example, a resin material, in a frame shape in which the front and rear and upper and lower shapes are substantially the same as the branch breaker 3 and the horizontal dimension is the same as the branch breaker 3. .

  The secondary interconnection breaker 100 is a breaker having 3P3E (the number of poles is 3 and the number of elements is 3), and the size in the left-right direction is as large as a plurality (three) of the branch breakers 3. The secondary interconnection breaker 100 is electrically connected to a distributed power source that is not allowed to flow backward to the power system. Examples of this type of distributed power source include a fuel cell, a gas power generation device, and a power storage device.

  The current measuring device 5 is configured to measure a current flowing through a load (electric circuit) connected to each of the plurality of branch breakers 3. The current measuring device 5 includes, for example, a substrate and a plurality of coils. The substrate has a plate shape that is long in the left-right direction. A plurality of holes are formed in the substrate. A terminal extending from the conductive bar and connected to the primary terminal of the branch breaker 3 is inserted into each of the plurality of holes. The coil is a Rogowski coil, for example, and is formed around a hole in the substrate. The current measuring device 5 of the present embodiment measures the current flowing through each of the plurality of branch breakers 3.

  The measurement adapter 6 is disposed on the left side of the main breaker 2 inside the cabinet body 11. The measurement adapter 6 has a measurement function for measuring power passing through at least one of the main breaker 2 and the branch breaker 3 in the distribution board 1 and a communication function for communicating with devices arranged outside the cabinet 10. Yes.

  The measurement adapter 6 of this embodiment is electrically connected to the main current measuring device and the current measuring device 5 that measure the current flowing through the main breaker 2. Here, the main current measuring device includes a current sensor including, for example, a current transformer (CT). Then, the measurement adapter 6 converts each current value measured by the current measurement device 5 and the main current measurement device into a power value.

  The measurement adapter 6 also has a function (communication function) for communicating with a controller configured to control a device compatible with HEMS (hereinafter referred to as a HEMS compatible device). The controller is a device arranged outside the cabinet 10. Here, the HEMS-compatible device only needs to be a power consumption management target, for example, a smart meter, a solar power generation device, a power storage device, a fuel cell, an electric vehicle, an air conditioner, a lighting fixture, a hot water supply device, a refrigerator, a television receiver, and the like. including. The HEMS compatible device is not limited to these devices.

  The communication method between the measurement adapter 6 and the controller is based on a communication standard such as a specific low-power radio station (radio station that does not require a license) of 920 MHz band, Wi-Fi (registered trademark), Bluetooth (registered trademark), etc. Alternatively, wireless communication using radio waves as a medium may be used. The communication method between the measurement adapter 6 and the controller may be wired communication based on a communication standard such as a wired LAN (Local Area Network).

  As a communication protocol in communication between the measurement adapter 6 and the controller, for example, Ethernet (registered trademark), ECHONET Lite (registered trademark), or the like may be used.

  In the distribution board 1 of the present embodiment, the measurement adapter 6 receives the current value of each of the plurality of electric circuits measured by the current measurement device 5 from the current measurement device 5. Further, the measurement adapter 6 receives the current value measured by the main current measuring device from the main current measuring device. The measurement adapter 6 converts each of the current values measured by the current measurement device 5 and the main current measurement device into a power value (instantaneous power value). The measurement adapter 6 has a function of calculating power amount data obtained by integrating the collected instantaneous power data over a predetermined time. Therefore, the controller that communicates with the measurement adapter 6 can control the HEMS-compatible device based on the instantaneous power and the amount of power in each of the plurality of electric circuits.

  In addition, the measurement adapter 6 has a function (communication function) for communicating with at least one of a solar power generation device, a power storage device, and a power conversion device that is electrically connected to the electric vehicle. These devices also correspond to external devices that are communication targets by the communication function of the measurement adapter 6. The power conversion device is used for both charging and discharging of a storage battery of an electric vehicle by performing power conversion in both directions in addition to power conversion for performing unidirectional charging from the distribution board 1 to the electric vehicle. It may be a configuration.

  Moreover, the measurement adapter 6 has a communication function with at least one of a gas meter and a water meter. These meters also correspond to external devices that are communication targets by the communication function of the measurement adapter 6. The communication method between the measurement adapter 6 and the solar power generation device, the power storage device, and the power conversion device is wired communication that conforms to a communication standard such as RS-485, for example. The measurement adapter 6 may be capable of communicating with, for example, a hot water storage type hot water supply device (Ecocute (registered trademark)). However, the communication method between the measurement adapter 6, the gas meter, and the water meter is not limited to wired communication, and may be wireless communication.

  As shown in FIG. 1, a feed terminal block 8 is provided above the secondary interconnection breaker 100 in the cabinet 10. The feed terminal block 8 is a unit for connecting an external load to the conductive bars 41, 42, 43. For example, another distribution board is connected to the feed terminal block 8 to add a load circuit, or a load for a specific application is connected. Examples of the load for a specific application include a safety light, a midnight power circuit, a solar power generation circuit, a time switch, and the like.

  As shown in FIG. 1, the feed terminal block 8 includes a pedestal 80 and a plurality of feed terminals (first to third feed terminals 81, 82, 83).

  The pedestal 80 is made of an electrically insulating material, for example, a resin material. As shown in FIG. 1, the pedestal 80 includes a rectangular parallelepiped first base portion 801 formed at the upper left position, a rectangular parallelepiped second base portion 802 formed at the center of the upper and lower sides and the right and left sides, And a rectangular parallelepiped third base portion 803 formed at a lower position. The first base part 801 to the third base part 803 are arranged side by side from the upper left to the lower right. The height of the first base part 801 to the third base part 803 (the height from the bottom surface of the cabinet 10) is such that the third base part 803 is higher than the second base part 802, and the second base part 802 is the first. It is higher than the base 801. A screw hole is formed in the front surface of each of the first base part 801 to the third base part 803. The base 80 is fixed to the cabinet 10 (the bottom plate of the cabinet 10) by, for example, screwing.

  Each of the first to third feed terminals 81 to 83 is made of a conductive material. The first feed terminal 81 is connected to the conductive bar 41 of the first voltage pole (L1 phase). The second feed terminal 82 is connected to the conductive bar 42 of the second voltage pole (L2 phase). The third feed terminal 81 is connected to a neutral pole (N-phase) conductive bar 43.

  Each of the first to third feed terminals 81 to 83 is a so-called screw terminal provided with a terminal plate and a terminal screw. Each of the first to third feed terminals 81 to 83 has a rectangular plate shape having a through hole at the center, and is connected to the corresponding conductive bars 41 to 43. In the present embodiment, the terminal plate of the first feed terminal 81 is integrally formed from the same material as the conductive bar 41. Similarly, the terminal plate of the second feed terminal 82 is integrally formed from the same material as the conductive bar 42, and the terminal plate of the third feed terminal 83 is integrally formed from the same material as the conductive bar 43. ing. Each terminal screw of the first to third feed terminals 81 to 83 is passed through the through hole of the corresponding terminal plate.

  The first feed terminal 81 is fixed to the first base part 801 by connecting a terminal screw to a screw hole on the front surface of the first base part 801. The second feed terminal 82 is fixed to the second base portion 802 by connecting a terminal screw to a screw hole on the front surface of the second base portion 802. The third feed terminal 83 is fixed to the third base portion 803 by connecting a terminal screw to a screw hole on the front surface of the third base portion 803.

  To each of the first to third feed terminals 81 to 83, for example, a conductor portion of an electric wire drawn from the outside through the window hole 12 can be individually connected. For example, the conductor portion of the electric wire is sandwiched between the terminal plate and the head of the terminal screw, and the terminal screw is screwed into the screw hole of the corresponding base portion 801 to 803, whereby the conductor portion of the electric wire is attached to the feed terminals 81 to 83. Can be connected.

  As shown in FIG. 1, in the base 80, a rectangular insertion hole 804 (first insertion hole 8041) is formed at a position on the right side of the second base part 802 and on the upper right side of the third base part. . In addition, in the base 80, a rectangular insertion hole 804 (second insertion hole 8042) is formed at the upper left position of the first base portion 801. Each of the first insertion hole 8041 and the second insertion hole 8042 is a rectangular hole that is long in the vertical direction.

  In the base 80, a support base 805 for supporting the conductive bar 43 of the neutral electrode is provided below the third base portion 803. A groove 806 extending in the front-rear direction is formed between the third base portion 803 and the support base 805.

  Further, on the left side of the second base portion 802 in the base 80, a display base 807 for displaying symbols indicating phases of the feed terminals 81 to 83 (L1, L2, and N phases) is provided.

  As shown in FIGS. 1, 2, and 4, a feed terminal cover 9 for protecting the first to third feed terminals 81 to 83 is attached to the feed terminal base 8. Hereinafter, the feed terminal cover 9 of this embodiment will be described with reference to FIGS. 1, 5, and 6.

  The feed terminal cover 9 of this embodiment is a resin molded product and has rigidity and electrical insulation. The material of the feed terminal cover 9 is, for example, (modified) PPE (polyphenylene ether) resin. However, the material of the feed terminal cover 9 is not limited to (modified) PPE resin, and the molded product only needs to have rigidity and electrical insulation. For example, PP (polypropylene) resin, PBT (polybutylene terephthalate) resin, ABS It may be a resin or the like.

  As shown in FIGS. 5 and 6, the feed terminal cover 9 of the present embodiment includes a front plate 91, a cover plate (upper plate) 92, a first side plate (right side plate) 93, and a second side plate (left side plate) 94. It is formed in the shape of a hollow rectangular box with rear and lower surfaces open.

  The front plate 91 is a portion that covers the front of the first to third feed terminals 81 to 83 in the feed terminal cover 9. As shown in FIGS. 5 and 6, the front plate 91 is formed in a rectangular plate shape having a rectangular notch 910 at the lower left. The front plate 91 is formed in a shape that covers the entire first to third feed terminals 81 to 83 from the front. The front plate 91 is formed so that the dimension in the left-right direction is slightly larger than the dimension in the left-right direction of the region including the first base part 801 to the third base part 803 in the feed terminal block 8. In the front plate 91, a through hole 911 is formed in a portion covering the first feed terminal 81, a through hole 912 is formed in a portion covering the second feed terminal 82, and a portion covering the third feed terminal 83. A through-hole 913 is formed in. These through holes 911 to 913 are formed to have a size that allows the insertion of tester pins so that the conduction of the feed terminals 81 to 83 can be confirmed with the feed terminal cover 8 covered by the feed terminal cover 9, for example. Has been. In addition, a symbol (L1) indicating the phase of the first feed terminal 81 is displayed above the through hole 911. On the upper side of the through hole 912, a symbol (L2) indicating the phase of the second feed terminal 82 is displayed. A symbol (N) indicating the phase of the third feed terminal 83 is displayed above the through hole 913.

  As shown in FIGS. 5 and 6, the lower end of the front plate 91 (the lower end of the portion where the notch 910 is formed) has a regulating member that can be flexibly elastically in the vertical direction (one direction). 95 is provided. In the present embodiment, the restricting member 95 is directly connected to the front plate 91. Specifically, the restricting member 95 includes a first plate portion 951, a second plate portion 952, a connecting portion 953, and a protrusion 954. The first plate portion 951 is a rectangular plate-like portion that protrudes rearward from a part of the lower end of the rear surface of the front plate 91. In order to improve the strength, the front end portion of the first plate portion 951 has a larger dimension in the left-right direction than the remaining portion. The second plate portion 952 is a rectangular plate-like portion that is parallel to the first plate portion 951 and positioned below the first plate portion 951. The connecting portion 953 is a C-shaped portion that connects the rear end of the first plate portion 951 and the rear end of the second plate portion 952. The protrusion 954 is provided on the lower surface of the second plate portion 952 so as to protrude downward. The protrusion 954 is formed in a triangular prism shape extending in the left-right direction. In the restricting member 95, the second plate portion 952 can be displaced in the vertical direction with respect to the first plate portion 951 by bending the connecting portion 953. Thereby, the restricting member 95 has a position where the projection 954 is hooked with respect to the predetermined plate-shaped member (a position where the second plate portion 952 is separated from the first plate portion 951) and a position where the projection 954 is removed from the plate-shaped member (the first position). Between the second plate portion 952 and the first plate portion 951).

  The cover plate 92 is a portion that covers the upper side (that is, one side in the vertical direction) of the first to third feed terminals 81 to 83 in the feed terminal cover 9. As shown in FIGS. 5 and 6, the lid plate 92 is formed in a rectangular plate shape that protrudes rearward from the upper end of the front plate 91. The dimension of the lid plate 92 in the left-right direction is substantially equal to the dimension of the front plate 91 in the left-right direction. The cover plate 92 faces the restricting portion (95) in the direction in which the restricting member 95 bends (vertical direction). The lid plate 92 is connected to the upper end of the front plate 91 by one or more connection portions 961 (for example, three locations in the present embodiment). The connecting portion 961 has a rectangular parallelepiped shape in which the horizontal dimension is sufficiently smaller than the horizontal dimension of the front plate 91. The lid plate 92 is connected to the front plate 91 only at the connecting portion 961. There is a gap between the front plate 91 and the lid plate 92 except for the connecting portion 961.

  A protruding rib 921 extending in the left-right direction is formed on the upper surface of the lid plate 92. That is, the lid plate 92 includes a protruding rib 921 on the surface (upper surface) opposite to the surface (lower surface) facing the regulating member 95. The rib 921 is provided on the upper surface of the lid plate 92 at a position in front of the center in the front-rear direction.

  The first side plate (right side plate) 93 is a portion that covers the right side (one in the left-right direction) of the first to third feed terminals 81 to 83. The second side plate (left side plate) 94 is a portion that covers the left side (the other in the left-right direction) of the first to third feed terminals 81 to 83.

  As shown in FIGS. 5 and 6, the first side plate 93 is formed in a rectangular plate shape having a notch 930 below the rear end. The front end of the first side plate 93 is continuously connected to the right end of the front plate 91 in the vertical direction. The upper end of the first side plate 93 is connected to the right end of the lid plate 92 by one or more connecting portions 962 (for example, only one in this embodiment). The connecting portion 962 has a rectangular parallelepiped shape in which the dimension in the front-rear direction is sufficiently smaller than the dimension in the front-rear direction of the cover plate 92 and the dimension in the front-rear direction of the first side plate 93. The first side plate 93 is connected to the lid plate 92 only at the connecting portion 962. There is a gap between the first side plate 93 and the cover plate 92 except for the connecting portion 962.

  At the rear end of the first side plate 93 (the rear end of the portion where the notch 930 is formed), a positioning rib 97 (first positioning rib 971) protrudes rearward at the center in the vertical direction. It is formed as follows. The first positioning rib 971 is formed in a rectangular plate shape whose dimension in the vertical direction is larger than that in the horizontal direction. The first positioning rib 971 is connected to the front plate 91 via the first side plate 93. The first positioning rib 971 is formed in a shape that can be inserted into the first insertion hole 8041 of the base 80 from the front.

  As shown in FIG. 6, a guide rib 970 protruding inward of the feed terminal cover 9 is formed at the lower end of the first side plate 93 so as to extend in the front-rear direction. That is, the feed terminal cover 9 has guide ribs 970 that fit into the grooves 806 of the base 80. The guide rib 970 has a shape that is inserted into the groove 806 of the base 80 along the front-rear direction.

  As shown in FIGS. 5 and 6, the second side plate 94 is formed in a rectangular plate shape. The front end of the second side plate 94 is continuously connected to the left end of the front plate 91 in the vertical direction. The upper end of the second side plate 94 is connected to the left end of the lid plate 92 by one or more connecting portions 963 (for example, only one in this embodiment). The connecting portion 963 has a rectangular parallelepiped shape in which the dimension in the front-rear direction is sufficiently smaller than the dimension in the front-rear direction of the lid plate 92 and the dimension in the front-rear direction of the second side plate 94. The second side plate 94 is connected to the lid plate 92 only at the connecting portion 963. There is a gap between the second side plate 93 and the lid plate 92 except for the connecting portion 963.

  At the rear end of the second side plate 94, a positioning rib 97 (second positioning rib 972) is formed at a position above the center in the vertical direction so as to protrude rearward. The second positioning rib 972 is formed in a rectangular plate shape whose dimension in the vertical direction is larger than that in the horizontal direction. The second positioning rib 972 is connected to the front plate 91 via the second side plate 94. The second positioning rib 972 is formed in a shape that can be inserted into the second insertion hole 8042 of the base 80 from the front.

  That is, the feed terminal cover 9 of this embodiment includes a plurality of positioning ribs 97 that are inserted into the insertion holes 804 of the base 80. The plurality of positioning ribs 97 are at least one on both sides of the regulating member 95 in the left-right direction (the front-rear direction and the vertical direction in which the regulating member 95 bends) (for example, one in the present embodiment). One by one).

  As shown in FIG. 6, a partition wall 98 is provided on the rear surface of the front plate 91. The partition wall 98 is formed at a left side position in the left-right direction on the rear surface of the front plate 91, and is formed in a rectangular plate-shaped first partition wall 981 that is wide in the front-rear and left-right directions, and at the center position in the left-right direction on the rear surface of the front plate 91. And a rectangular partition-shaped second partition wall 982 that is wide in the front-rear and left-right directions. The dimension in the left-right direction of the first partition wall 981 is approximately the same as the dimension in the left-right direction of the first base portion 801 of the feed terminal block 8. The dimension in the left-right direction of the second partition wall 982 is approximately the same as the dimension in the left-right direction of the second base portion 802 of the feed terminal block 8. The partition wall 98 has a rectangular plate shape that is wide in the front-rear and upper-lower directions, and includes a third partition wall 983 that connects the right end of the first partition wall 981 and the left end of the second partition wall 982. The partition wall 98 is formed in a staircase shape by the first to third partition walls 981 to 983.

  As shown in FIG. 6, the regulating member 95 is located in a space surrounded by the first partition 981, the third partition 983, the front plate 91, and the second side plate 94. A rectangular parallelepiped reinforcing portion 984 is provided at a position connecting the upper surface of the second partition wall 982 and the right surface of the third partition wall 983.

  Further, as shown in FIG. 6, reinforcing ribs 99 are provided on the inner surface of the feed terminal cover 9 at a plurality of locations so as to improve the strength of the feed terminal cover 9 by connecting the plurality of faces of the feed terminal cover 9. It has been. The reinforcing rib 99 of the present embodiment includes a first reinforcing rib 991 that connects the rear surface of the front plate 91 and the left surface of the first side plate 93 at the position of the lower end in the vertical direction, and the front plate at a position above the center in the vertical direction. And second reinforcing ribs 992 that connect the rear surface of 91 and the left surface of the first side plate 93. The reinforcing rib 99 of the present embodiment further includes a third reinforcing rib 993 that connects the rear surface of the front plate 91 and the right surface of the second side plate 94 at the upper end in the vertical direction. The reinforcing ribs 99 are all formed in a right triangle shape when viewed from above. The partition wall 98 also functions as a reinforcing member for improving the strength of the feed terminal cover 9.

  Next, a method for attaching the feed terminal cover 9 to the cabinet 10 will be described with reference to FIGS.

  First, as shown in FIG. 1, the operator positions the feed terminal cover 9 in front of the feed terminal block 8 so that the rear surface opening of the feed terminal cover 9 faces the feed terminal block 8. Next, the worker inserts the guide rib 970 of the feed terminal cover 9 into the groove 806 of the base 80 (inner unit) along the front-rear direction, as shown by the one-dot chain line in FIG. From here, when the feed terminal cover 9 is pushed backward while sliding the guide rib 970 with respect to the groove 806, the first positioning rib 971 is inserted into the first insertion hole 8041 from the front, and the second positioning rib 972 is It is inserted into the second insertion hole 8042 from the front. In this way, the positioning rib 97 is inserted into the insertion hole 804 from the front, whereby the movement of the feed terminal cover 9 in the plane intersecting the front-rear direction (in the plane parallel to the paper surface of FIG. 2) is restricted. Is done. That is, the positioning rib 97 is inserted in the insertion hole 804 along the front-rear direction, and positions the front plate 91 within a plane that intersects the front-rear direction. At this time, the regulating member 95 is positioned above the neutral conductive bar 43 at a location where the rear surface of the protrusion 954 contacts the front surface of the conductive bar 43.

  Furthermore, the operator bends the regulating member 95 in the vertical direction (bending direction) with his / her finger, for example, and displaces the protrusion 954 to a position where it does not contact the conductive bar 43. Then, the operator pushes the feed terminal cover 9 backward. Thereby, the protrusion 954 moves over the conductive bar 43 and moves to the rear of the conductive bar 43. In this state, when the operator releases his / her hand from the restricting member 95, the restricting member 95 is elastically restored to its original shape, and the restricting member 95 is brought into contact with the rear surface of the conductive bar 43. Is hooked on the conductive bar 43. Thereby, the movement of the feed terminal cover 9 in the front-rear direction is restricted. That is, the restricting member 95 has elasticity that can be bent in one direction (vertical direction) intersecting with the front-rear direction, and is in a state where it is hooked on the inner unit of the distribution board (specifically, the conductive bar 43). The front plate 91 is restricted from moving in the front-rear direction.

  Here, a rib 921 is provided on the upper surface of the cover plate 92 of the feed terminal cover 9. Thereby, when bending the regulating member 95, the operator can hold the feed terminal cover 9 by hooking his / her fingers on the regulating member 95 and the rib 921. That is, the operator can use the rib 921 as a slip stopper.

  Even if the operator does not bend the regulating member 95 with his / her finger, if the feed terminal cover 9 is pushed further rearward with the rear surface of the projection 954 in contact with the front surface of the conductive bar 43, the conductive bar 43 projects the projection. 954 is pushed upward, and the regulating member 95 is bent in the vertical direction. If the feed terminal cover 9 is further pushed backward from this state, after the protrusion 954 gets over the conductive bar 43, the protrusion 954 is detached from the conductive bar 43, and the regulating member 95 returns to its original shape. In short, even if the operator does not bend the regulating member 95 with a finger or the like, the regulating member 95 can be hooked on the conductive bar 43 by pushing the feed terminal cover 9 backward.

  The feed terminal cover 9 can be attached to the base 80 (cabinet 10) by the procedure as described above.

  In a state in which the feed terminal cover 9 is attached to the base 80, the front plate 91 covers the front of the first to third feed terminals 81 to 83, and the lid plate 92 is above the first to third feed terminals 81 to 83. The first and second side plates 93, 94 cover the right and left sides of the first to third feed terminals 81-83. The lower part of the feed terminal block 8 is covered with a secondary interconnection breaker 100. Therefore, by attaching the feed terminal cover 9, it becomes difficult for the user to touch the feed terminal block 8, and the possibility of dust adhering to the feed terminal block 8 is reduced. Thereby, the safety of the feed terminal is improved.

  Further, in a state where the feed terminal cover 9 is attached to the base 80, the first to third feed terminals 81 to 83 are electrically separated by the partition wall 98. For example, as shown in FIG. 7, since the first partition 981 is located below the first feed terminal 81, the first feed terminal 81 and the second feed terminal 82 are separated by the first partition 981. The insulation distance between increases. Thus, since the insulation distance between the feed terminals 81-83 is increased by the partition wall 98, the safety of the feed terminal block 8 is improved.

  Furthermore, in the feed terminal cover 9 of the present embodiment, the feed terminal cover 9 can be attached simply by inserting the positioning rib 97 into the insertion hole 804 and hooking the regulating member 95 on the conductive bar 43 (inner unit). That is, since the feed terminal cover 9 includes the positioning ribs 97 and the restriction members 95, the feed terminal cover 9 can be easily attached.

  Here, in the feed terminal cover 9 of the present embodiment, the lid plate 92 is connected to other portions (the front plate 91, the first side plate 93, and the second side plate 94) only by the connecting portions 961, 962, and 963. . Therefore, if this connection part 961,962,963 is cut | disconnected with a nipper etc., it will be possible to isolate | separate the cover board 92 easily from another part. That is, the feed terminal cover 9 includes a connecting portion 961 that connects the front plate 91 and the lid plate 92, and the connecting portion 961 can be cut off.

  FIG. 8 shows the feed terminal cover 9 after the cover plate 92 is cut off. In this state, the upper surface of the feed terminal cover 9 is open. Thereby, for example, even when the wiring connected to the feed terminal base 8 extends upward, the feed terminal cover 9 can be attached without being disturbed by the wiring. Even in this state, the feed terminal cover 9 covers at least the front and left and right of the feed terminal block 8, so that the safety of the feed terminal block 8 can be improved.

(2) Modifications Modifications are listed below. Each modification described below can be applied in combination with the embodiment and other modifications as appropriate.

  The feed terminal cover 9 may not include a plurality of positioning ribs 97 and may include only one positioning rib 97. Further, the plurality of positioning ribs 97 do not need to be provided on both the left and right sides of the regulating member 95, and the plurality of positioning ribs 97 are provided only on one side of the regulating member 95 in the left-right direction (for example, the rear end of the first side plate 93 Along the vertical direction). Further, the position where the positioning rib 97 is formed in the feed terminal cover 9 is not particularly limited as long as it can be inserted into the insertion hole 804 from the front. The positioning rib 97 is preferably provided away from the regulating member 95.

  The number of guide ribs 970 is not particularly limited, and may be two or more or zero. Further, the place where the guide rib 970 is formed is not particularly limited.

  The number of feed terminals provided in the feed terminal block 8 is not limited to three, and may be two or more than four, for example. In this case, the shape of the feed terminal cover 9 is appropriately changed depending on the number of feed terminals. For example, a feed terminal cover 9 having left and right dimensions corresponding to two feed terminals may be used for the feed terminal block 8 having two feed terminals arranged on the left and right.

  The feed terminal block 8 may be provided below the neutral electrode conductive bar 43 (for example, a position where the secondary interconnection breaker 100 is provided).

  The measurement adapter 6 is not essential for the distribution board 1, and the distribution board 1 may not include the measurement adapter 6.

(3) Aspect As is clear from the embodiment and the modification described above, the feed terminal cover (9) of the first aspect includes a front plate (91), a positioning rib (97), and a regulating member (95). And). The front plate (91) is connected to a plurality of conductive bars (41, 42, 43) of the distribution board (1), and a plurality of feed terminals to which loads outside the distribution board (1) are connected ( 81, 82, 83). The positioning rib (97) is connected to the front plate (91). The positioning rib (97) positions the front plate (91) in a plane intersecting the front-rear direction. The regulating member (95) is connected to the front plate (91). The regulating member (95) has elasticity that can be bent in one direction intersecting with the front-rear direction, and the front plate (91) moves in the front-rear direction while being hooked on the inner unit of the distribution board (1). To regulate.

  According to the first aspect, since the front of the plurality of feed terminals (81, 82, 83) is covered by the front plate (91), the feed terminals (81, 82, 83) are used when the user performs work. It becomes difficult to touch and dust does not easily adhere to the feed terminals (81, 82, 83). This improves the safety of the feed terminals (81, 82, 83). Further, since the feed terminal cover (9) includes the positioning rib (97) and the regulating member (95), it can be easily attached to the cabinet (10) of the distribution board (1). is there.

  The feed terminal cover (9) of the second aspect further includes a cover plate (92) in the first aspect. The cover plate (92) covers one side of the plurality of feed terminals (81, 82, 83) in the vertical direction of the distribution board (1).

  According to the second aspect, since the plurality of feed terminals (81, 82, 83) are covered from one side in the vertical direction by the lid plate (92), the safety of the feed terminals (81, 82, 83) is further improved. To do.

  The feed terminal cover (9) according to the third aspect is the second aspect, in which the cover plate (92) faces the restricting member (95) in the one direction described above. The lid plate (92) includes a protruding rib (921) on the surface opposite to the surface facing the regulating member (95).

  According to the third aspect, the rib (921) can be used as a slip stopper when the regulating member (95) is bent.

  The feed terminal cover (9) of the fourth aspect further includes a connecting portion (961) for connecting the front plate (91) and the cover plate (92) in the second or third aspect. The connecting portion (961) can be excised.

  According to the fourth aspect, when the lid plate (92) is unnecessary, the lid plate (92) can be excised.

  The feed terminal cover (9) of the fifth aspect is provided with a plurality of positioning ribs (97) in any one of the first to fourth aspects.

  According to the fifth aspect, the front plate (91) is more reliably positioned in the plane intersecting the front-rear direction.

  In the fifth aspect, the feed terminal cover (9) according to the sixth aspect is the fifth aspect, wherein the plurality of positioning ribs (97) sandwich the regulating member (95) in the front-rear direction and the direction intersecting the one direction. There is at least one on each side.

  According to the sixth aspect, the front plate (91) is more reliably positioned in the plane intersecting the front-rear direction.

  The feed terminal cover (9) according to the seventh aspect is any one of the first to sixth aspects, and the groove (806) is formed in the inner unit. The feed terminal cover (9) further includes a guide rib (970) that fits into the groove (806).

  According to the seventh aspect, the feed terminal cover (9) can be slid along the groove (806).

  In the seventh aspect, the feed terminal cover (9) of the eighth aspect has a long shape in the front-rear direction. The guide rib (970) has a shape inserted into the groove (806) along the front-rear direction.

  According to the eighth aspect, the feed terminal cover (9) can be slid in the front-rear direction along the groove (806).

  The feed terminal cover (9) of the ninth aspect is any one of the first to eighth aspects, wherein the inner unit is one of the plurality of conductive bars (41, 42, 43) (conductive bar). 43).

  According to the ninth aspect, it is possible to restrict the movement of the front plate (91) in the front-rear direction by hooking the restriction member (95) on the conductive bar (43) included in the distribution board (1). Become.

  The feeding terminal cover (9) of the tenth aspect is the partition terminal (98) that electrically separates each of the plurality of feeding terminals (81, 82, 83) in any of the first to ninth aspects. In addition.

  According to the tenth aspect, since the plurality of feed terminals (81, 82, 83) are electrically separated by the partition wall (98), the safety of the feed terminals (81, 82, 83) can be improved. It becomes.

  The feed terminal cover (9) of the eleventh aspect is any one of the first to tenth aspects, and the feed terminal cover (9) is a resin molded product.

  According to the eleventh aspect, since the feed terminal cover (9) has rigidity, attachment and removal are facilitated.

  The distribution board (1) of the twelfth aspect includes a feed terminal cover (9) of any of the first to eleventh aspects, a plurality of conductive bars (41, 42, 43), and a plurality of feed terminals ( 81, 82, 83).

  According to the twelfth aspect, it is possible to provide a distribution board provided with feed terminals (81, 82, 83) with improved safety.

1 Distribution board 41, 42, 43 Conductive bar 81, 82, 83 Feed terminal 806 Groove 9 Feed terminal cover 91 Front plate 92 Cover plate 921 Rib 95 Restricting member 961 Connecting portion 97 Positioning rib 970 Guide rib 98 Bulkhead

Claims (12)

A front plate that is connected to each of the plurality of conductive bars of the distribution board and covers the front of the plurality of feed terminals to which the external load of the distribution board is connected,
A positioning rib that is connected to the front plate and positions the front plate in a plane intersecting the front-rear direction;
It is connected to the front plate, has elasticity that can be bent in one direction intersecting the front-rear direction, and moves the front plate in the front-rear direction while being hooked on the inner unit of the distribution board. A regulating member to regulate;
Comprising
Feed terminal cover. In the vertical direction of the distribution board, further comprising a cover plate covering one side of the plurality of feed terminals,
The feed terminal cover according to claim 1. The lid plate is opposed to the regulating member in the one direction;
The lid plate includes a protruding rib on a surface opposite to the surface facing the regulating member.
The feed terminal cover according to claim 2. A connecting portion for connecting the front plate and the lid plate;
The connecting portion is resectable;
The feed terminal cover according to claim 2 or 3. A plurality of the positioning ribs;
The feed terminal cover according to any one of claims 1 to 4. The plurality of positioning ribs are at least one on both sides of the regulating member in the front-rear direction and the direction intersecting the one direction.
The feed terminal cover according to claim 5. A groove is formed in the inner unit,
The feed terminal cover further includes a guide rib that fits into the groove.
The feed terminal cover according to any one of claims 1 to 6. The groove is long in the front-rear direction,
The guide rib has a shape inserted into the groove along the front-rear direction.
The feed terminal cover according to claim 7. The inner unit is one of the plurality of conductive bars.
The feed terminal cover according to any one of claims 1 to 8. A partition that electrically separates each of the plurality of feed terminals;
The feed terminal cover according to any one of claims 1 to 9. The feed terminal cover is a resin molded product,
The feed terminal cover according to any one of claims 1 to 10. The feed terminal cover according to any one of claims 1 to 11,
The plurality of conductive bars;
The plurality of feed terminals;
Comprising
Distribution board.

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