CN101442190B - Switchboard - Google Patents

Switchboard Download PDF

Info

Publication number
CN101442190B
CN101442190B CN2008101770906A CN200810177090A CN101442190B CN 101442190 B CN101442190 B CN 101442190B CN 2008101770906 A CN2008101770906 A CN 2008101770906A CN 200810177090 A CN200810177090 A CN 200810177090A CN 101442190 B CN101442190 B CN 101442190B
Authority
CN
China
Prior art keywords
circuit breaker
branch
trunk
display lamp
branch circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN2008101770906A
Other languages
Chinese (zh)
Other versions
CN101442190A (en
Inventor
盐川明实
井上浩道
水野初男
进广和
水野洋二
国本洋一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Matsushita Denko Denro System KK
Original Assignee
Matsushita Denko Denro System KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Denko Denro System KK filed Critical Matsushita Denko Denro System KK
Publication of CN101442190A publication Critical patent/CN101442190A/en
Application granted granted Critical
Publication of CN101442190B publication Critical patent/CN101442190B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The present invention provides a switchboard capable of displaying conduction state of branch breakers, and easily observing the branch breakers. The switchboard comprises: a housing body (9); a main circuit breaker (1); a plurality of branch breakers (2) a display unit (8) having a plurality of display lamps (81) for branch. The display unit (8) has a casing body (8a) for holding the display lamps (81) for branch, the casing body has a front panel (8e) configured at a position projecting from the bottom of the housing body (9), a side panel (8f) extending from a horizontal end of the front panel (8e) to a bottom of the housing body (9), the display unit (8) extends transversely on bottom of the housing body (9) in manner of separating with the branch breakers (2) in transverse direction. The display lamps (81) for branch are arranged in horizontal direction with each branch breakers (2). The side panel (8f) slopes in manner of extending in direction of blocking a space between the front panel (8e) and the branch breakers (2).

Description

Distribution board
Technical field
The present invention relates to electric distribution board for apartment in the premises setting.
Background technology
,, provided in the circuit of single-phase 2 line formula 100V that exchange 50Hz or 60Hz or single-phase 3 line formula 100/200V the electric distribution board for apartment (being also referred to as the house power distribution dish) that uses mainly as the indoor interface arrangement of dwelling house etc. as distribution board in the past.
This distribution board comprises: trunk circuit breaker (main switch device); From the branch circuit to the electric equipment supply capability (branch line) of trunk circuit (bus) branch that the secondary side with the trunk circuit breaker is connected the multiple row branch circuit breaker internal units such as (branch switch devices) that is provided with respectively and arranges along predetermined orientation; The casing of this internal unit of having taken in (installation).
In recent years, a kind of distribution board with current sensor is proposed, its detection flows to the electric current (for example with reference to No. 2991875 communique of Japan Patent) of branch circuit breaker (supplying to electric equipment by branch circuit breaker).The distribution board of in No. 2991875 communique of this patent, representing, current sensor is set in casing, it is made of the current transformer that detects a plurality of branch circuit breakers electric current separately, and each current sensor uses output line separately, is connected on the energising display module.The light-emitting diode of lighting by the output current of each current sensor (LED) is set in this energising display module, in view of the above, can carries out the demonstration of the "on" position of branch circuit breaker.In addition, the content of use Roger Paderewski (Rogoski) coil as current sensor disclosed in TOHKEMY 2007-228734 communique.
The casing of such distribution board is with near being arranged on the ceiling of building elements such as wall to the described orientation of branch circuit breaker along the form of left and right directions, when so the user discerns the branch circuit breaker of distribution board, for observing the form of branch circuit breaker from bottom to top.
Here, in No. 2991875 communique of Japan Patent, in the disclosed content,, between the branch circuit breakers of 2 row that are arranged above and below, the energising display module is set for the ease of corresponding with each branch circuit breaker foundation.Therefore, for example and will discern branch circuit breaker the time for the state of the operating grip of confirming branch circuit breaker, branch circuit breaker about downside, can discern without a doubt, but branch circuit breaker about upside, owing to dispose the energising display module at its downside according to being convenient to set up related mode, block the visual field, the problem that is difficult to observe so exist by the energising display module with each branch circuit breaker.
Therefore, in the time of discerning the branch circuit breaker of upside, for example be necessary to utilize chair or step stool etc., at this moment, spend time and prepare chair or step stool, but also the danger that exists the user to fall from chair or step stool.
Summary of the invention
The present invention proposes in view of the above-mentioned problems, and its purpose is, and provide and can carry out the demonstration of the "on" position of branch circuit breaker, and the good distribution board of the identity from the below of branch circuit breaker.
Distribution board of the present invention has: casing, and it is installed on the building element and uses; The trunk circuit breaker, it is accommodated in the described casing; A plurality of branch circuit breakers, it is accommodated in the described casing, is arranged at respectively the branch circuit of the trunk circuit branch that is connected from the secondary side with described trunk circuit breaker; Display unit, it has a plurality of branches display lamp of drawing, these a plurality of branches display lamp of drawing is used for showing that described branch circuit breaker flows through the above electric current of predetermined value, it is characterized in that: described casing has laterally, vertically and the size of depth direction, and has the bottom surface, described display unit has and keeps the draw box body of display lamp of described branch, described box body has the front panel that is configured in from outstanding position, the described bottom surface of described casing, the side panel of extending to the described bottom surface of described casing from the described end longitudinally of front panel, described each minute, the display lamp of drawing exposed at described front panel, described a plurality of branch circuit breaker is in described casing, along described transversely arranged be row, described display unit with the described form of vertically separating of being listed in of described branch circuit breaker, become abreast in casing along described horizontal expansion with the row of described branch circuit breaker, each minute drawn display lamp and described each branch circuit breaker along described vertical arrangement; Described side panel is to tilt in the upwardly extending form in side of stopping up the space between described front panel and the described branch circuit breaker row.
According to the present invention, owing to the rear end of side panel according to side panel more tilts near the mode of branch circuit breaker than front end, compare with the situation that side panel is kept straight on front panel in the past, can guarantee from the below branch circuit breaker 2A 1～2A 18Identity good.In addition, the present invention can receive that being suppressed at upper side gathers the effect that produces dust or fragment owing to construction.
Description of drawings
Fig. 1 is the prior figures of distribution board of state of door of the casing that takes off distribution board of an embodiment of the invention.
Fig. 2 is the A-A line direction of arrow cutaway view of Fig. 1 of distribution board of state that takes off the door of this casing.
Fig. 3 is the diagrammatic illustration figure of this distribution board.
Fig. 4 is the prior figures of taking off the distribution board of the door of this casing and the state of middle cover.
Fig. 5 is the installation display unit prior figures before of taking off the distribution board of the door of this casing and the state of middle cover.
Fig. 6 takes off the door of this casing and the stereogram of distribution board of the state behind the middle cover.
Fig. 7 is the installation display unit stereogram before that takes off the distribution board of the door of this casing and the state behind the middle cover.
Fig. 8 is the vertical view of this sensor assembly.
Fig. 9 is the vertical view of this sensor assembly.
Figure 10 is the upward view of this sensor assembly.
Figure 11 is the B-B line direction of arrow cutaway view of Fig. 8 of this sensor assembly.
Figure 12 is the end view of this sensor assembly.
Figure 13 is the outside drawing when a direction is observed this sensor assembly.
Figure 14 is the outside drawing when other direction is observed this sensor assembly.
Figure 15 is the prior figures of state of door of closing the casing of this distribution board.
Figure 16 is the prior figures of state of door of opening the casing of this distribution board.
Figure 17 is the stereogram of state of door of closing the casing of this distribution board.
Figure 18 is the stereogram of state of door of opening the casing of this distribution board.
Figure 19 is the prior figures of state of taking off the diffuser of this distribution board.
Figure 20 is the stereogram of state that takes off the diffuser of this distribution board.
Embodiment
The distribution board of an embodiment of the invention is so-called electric distribution board for apartment, as Fig. 1～shown in Figure 20, in casing 9, taken in trunk circuit breaker 1, in trunk circuit 10 branches that the secondary side with trunk circuit breaker 1 is connected and a plurality of (in illustrated example, the 34) branch circuit breaker 2 that is provided with respectively in to the branch circuit 11 of not shown electric equipment (for example home appliance such as washing machine or TV) supply capability, measure the trunk measurement section 4 of the current value of supplying with by 1 pair of trunk circuit of trunk circuit breaker 10, the branch of measuring the current value of supplying with by 2 pairs of electric equipments of branch circuit breaker respectively according to each of a plurality of branch circuit breakers 2 measurement section 3 of drawing, 62, about by trunk with measurement section 4 and the branch measurement section 3 of drawing, the trunk that 62 current values of obtaining are exported expression and the relation of predetermined reference current value respectively is with the draw index calculating part 7 of desired value of desired value and branch, comprise and have a plurality of operate conditions and drawing the trunk that is driven under the desired value corresponding operation state and shows trunk circuit breaker 1 and a plurality of branch circuit breaker 2 "on" position separately with desired value and described branch with the draw display unit 8 of display lamp 81 of display lamp 80 and a plurality of branch with described trunk respectively.
Trunk circuit breaker 1 has: power supply side terminal 1a, the 1b that is connected with the voltage pole 101,102 of introducing the low-voltage distribution wire 100 of resident family from vertical rod transformer (not shown) and be connected power supply side terminal 1c on the neutral pole 103; Corresponding with power supply side terminal 1a, 1b on being connected voltage pole 101,102, become 2 load side terminal (not shown) of voltage pole; Corresponding with the power supply side terminal 1c on being connected neutral pole 103, become the load side terminal (not shown) of neutral pole.In addition, trunk circuit breaker 1 inside have makes with the corresponding respectively load side terminal (being the secondary side terminal) of power supply side terminal (being the primary side terminal) 1a～1c between energising connect the switching mechanism (not shown) of disconnection, the lever 1d that switching manipulation uses that is used for of this switching mechanism exposes setting in front.In addition, trunk circuit breaker 1 has when flowing through overcurrent (overload electric current or short circuit current) or producing leakage current between power supply side terminal 1a～1c and load side terminal (when abnormal current takes place), interdict between them, make lever 1d be positioned at the circuit blocking function that disconnects side.
And, in trunk circuit breaker 1, possesses detection arranged, measure the described trunk measurement section 4 of the electric current that flow into load side terminal, front face side at trunk circuit breaker 1 is provided with output terminal part (not shown), is used for the current value of supplying with by 1 pair of trunk circuit of trunk circuit breaker 10 (current value of trunk circuit breaker 1) is taken out with measurement section 4 from trunk.The current value (trunk current value) of the trunk circuit breaker of measuring 1 is transferred to index calculating part 7 by the trunk current value transmission line L4 that describes later.
In addition, be provided for showing in the front face side of trunk circuit breaker 1 unusual state display part 1e takes place.State display part 1e for example is designed to if usually the time, and the color of state display part 1e be a white, and the color of state display part 1e becomes yellow when unusual, in view of the above, shows and takes place unusually.And, be provided for testing the whether testing button 1f of operate as normal of trunk circuit breaker 1 in the front face side of trunk circuit breaker 1.In addition, such state display part 1e or testing button 1f are well-known, so omit detailed explanation.In addition, in Fig. 1, omit the diagram of power supply side terminal 1a～1c, state display part 1e and testing button 1f.
In casing 9, take in branch's module 6 that can connect a plurality of branch circuit breakers 2.
Branch's module 6 is as Fig. 2, Fig. 6, shown in Figure 7, contact rod 61, the sensor assembly 62 of the strip that possess pair of conductive rod 60 that the length direction one distolateral (left end side among Fig. 1) and the load side terminal of the voltage pole that becomes trunk circuit breaker 1 are electrically connected respectively in formed rectangular tabular base portion 63 by resin material with insulating properties etc., length direction one distolateral (left end side among Fig. 1) is electrically connected with the load side terminal of the neutral pole that becomes trunk circuit breaker 1.
The load side terminal of the distolateral a pair of voltage pole with trunk circuit breaker 1 of its length direction of pair of conductive rod 60 one is electrically connected respectively, uses as voltage pole.Such contact rod 60 is for example by metallic plate, formation accounts for roughly size rectangular tabular of half of the Width of base portion 63, and outstanding a plurality of (18 in the present embodiment) that are set to be used to connect the connecting portion of branch circuit breaker 2 divide the contact rod 60a that draws at the distolateral edge part of this Width one.Here, divide the contact rod 60a that draws to arrange and be provided with along the length direction of contact rod 60, in view of the above, can be with the form of arranging along the length direction (left and right directions among Fig. 1) of contact rod 60, a plurality of branch circuit breakers 2 are connected with branch module 6.
Contact rod 61 is electrically connected with the load side terminal of the neutral pole of trunk circuit breaker 2 by its length direction one distolateral (left end side among Fig. 1), use as neutral pole, for example become long plate shape by metal plate shape, its Width two edges portion is as the connecting portion use that is used to connect branch circuit breaker 2.Such contact rod 61 forwards sets up between the support column 63a of the outstanding prism-shaped that is provided with respectively at the central portion of the length direction both end sides of base portion 63.
These contact rods 60,61 are electrically connected with each load side terminal of trunk circuit breaker 1 respectively.Therefore, in the distribution board of present embodiment, contact rod 60,61 constitutes trunk circuit (bus) 10, from a plurality of branch circuits (branch line) 11 of each trunk circuit 10 branch.And the contact rod 60,61 that constitutes trunk circuit 10 and branch circuit 11 all is set at its width, thickness etc. has the maximum current capacity that mates with the maximum rated current of trunk circuit breaker 1.
In branch's module 6,, be provided for the fixed component 64 that prevents that branch circuit breaker 2 from coming off from contact rod 60,61 unexpectedly as Fig. 2 and shown in Figure 5.Fixed component 64 forms tabular by the soft resin material with insulating properties, Width (the Width of a side in the back, the above-below direction of Fig. 5) both ends as shown in Figure 5, form the 64a of fixing hole portion of the fixedly teat 2d that embeds the branch circuit breaker of describing later 2.
Divide the measurement section 3,62 drawn to constitute by sensor assembly 62, this sensor assembly 62 comprise the branch of detecting the branch current that flows through each branch circuit breaker with current sensor 3, calculate the sensor unit 62d of the branch current that detects.Sensor assembly 62 is shown in Fig. 8～14, use the printed circuit board (PCB) 62a of long plate shape to form, the draw first patchhole 62b of circular hole of a plurality of (in illustrated example 18) of contact rod 60a of the branch that is provided with the contact rod 60 that has inserted a side respectively, the draw second patchhole 62c of a plurality of (in illustrated example 18) square hole shape of contact rod 60a of the branch that inserts the opposing party's contact rod 60 respectively, the form that this second patchhole 62c is arranged to and a plurality of first patchhole 62b are corresponding respectively.
In addition, sensor assembly 62 has and detect to flow into the draw branch of electric current of contact rod 60a of the branch that is inserted among the first patchhole 62b and export sensor unit 62d, the output terminal part (not shown) of the current value (by the current value of 2 pairs of electric equipments supplies of branch circuit breaker) of Branch Computed circuit breaker 2 with current sensor 3 (with reference to Fig. 3), according to branch with the detection of current sensor 3.
Branch has this lubber ring of Kenneth Rogoff with current sensor 3, this lubber ring of this Kenneth Rogoff forms according to the coil line (not shown) that the mode around the first patchhole 62b forms by the periphery at each first patchhole 62b of printed circuit board (PCB) 62a, and the differential shape of electric current is exported as detecting output.The through hole (not shown) that this coil line is provided with by the periphery at the first patchhole 62b of printed circuit board (PCB) 62a is electrically connected with the conductive pattern (not shown) that positive and negative at printed circuit board (PCB) 62a forms respectively.This lubber ring of Kenneth Rogoff that is made of such coil line is well-known in the past, so omit detailed explanation in the present embodiment.
Sensor unit 62d has: according to the detection output of the branch that connects with current sensor 3, calculate the function of this branch with the current value (by the current value of 2 pairs of electric equipments supplies of branch circuit breaker) of the branch circuit breaker 2 of the measuring object of current sensor 3; Function with the current value of the time output branch circuit breaker 2 of receiving triggering signal described later.In the present embodiment, a plurality of sensor unit 62d are connected to chain, so after the current value of sensor unit 62d output branch circuit breaker 2, to the sensor unit 62d transmission triggering signal of back level.Therefore, provide triggering signal to initial sensor unit 62d after, from the sensor unit 62d of prime the sensor unit 62d of back level is sent triggering signal, export the current value of branch circuit breaker 2 in order from each sensor unit 62d.
Such sensor unit 62d for example constitutes the electronic unit ICization (integrated) that comprises CPU etc., is installed on the printed circuit board (PCB) 62a.In addition, sensor assembly 62 has and covers its surperficial insulating cover 62e, in view of the above, guarantees to be installed in branch on the printed circuit board (PCB) 62a with the current-carrying part of current sensor 3, sensor unit 62d etc. and the insulating properties between the contact rod 60,61.
Branch circuit breaker 2 have be arranged on contact rod 60 on branch a plurality of (3) mains side connecting portion 2a (with reference to Fig. 2), the load-side connecting portion 2b (with reference to Fig. 4～5) that connects the power line of electric equipment (load) that the edge part of Width of contact rod 60a or contact rod 61 is connected that draw.In addition, actual just 2 of using among 3 mains side connecting portion 2a.
Take in the switching mechanism (not shown) of the energising between control mains side connecting portion 2a and the load-side connecting portion 2b in the inside of this branch circuit breaker 2, the lever 2c that is used for switch of this switching mechanism exposes the front central portion that is arranged on branch circuit breaker 2.In addition, branch circuit breaker 2 has circuit blocking function, when flowing through overcurrent or producing electric leakage between mains side connecting portion 2a and load-side connecting portion 2b when unusual (), interdicts between them, and makes lever 2c be positioned at the disconnection side.In addition, the front face side at branch circuit breaker 2 is provided with described fixedly teat 2d.
Present embodiment has: obtain data (current value (branch current value) of current value of trunk circuit breaker 1 (trunk current value) and branch circuit breaker 2) from trunk respectively with measurement section 4 and the branch measurement section 3,62 of drawing, according to reference current value, the output trunk is with index and divide the index calculating part 7 of the index of drawing; By the trunk of the "on" position that shows trunk circuit breaker 1 and branch circuit breaker 2 with display lamp 80 and a plurality of branch display unit 8 that display lamp 81 constitutes of drawing.
Display unit 8 has the box body 8a of the long case shape of back opening as shown in Figure 5, takes in the printed circuit board (PCB) 8b of strip in box body 8a.The branch of a plurality of (in the present embodiment, with the number of branch circuit breaker 2 34) that a plurality of (3 in the present embodiment) trunk is provided with form one to one with display lamp 80, with a plurality of branch circuit breakers 2 being installed at this printed circuit board (PCB) 8b draw display lamp 81, be used to carry out the sense of hearing notice (being used for alarm) buzzer 82, carry out the drive circuit portion 83 of control that trunk is drawn display lamp 81 and buzzer 82 with display lamp 80 and branch.As described later, a plurality of trunks of present embodiment with display lamp 80 by the operate condition that has with display lamp by each trunk constitute light pattern, can show the "on" position of trunk circuit breaker 1 with many grades ground.In addition, in box body 8a, be provided with from trunk with display lamp 80 with divide light that the display lamp 81 of drawing radiates respectively a plurality of perforate 8c to the rectangular shape of outside ejaculation, and the sound hole 8d of buzzer 82 is set.
In the following description,, as required, represent a plurality of trunks usefulness display lamps 80,, as required, use symbol 81A in order to distinguish a plurality of branches display lamp 81 of drawing with symbol 80A～80C in order to distinguish a plurality of trunks with display lamps 80 1～81A 18, 81B 1～81B 16Represent a plurality of branches display lamp 81 of drawing.In addition, in branch is drawn the symbol of display lamp 81 and branch circuit breaker 2, to being in the additional identical subscript of corresponding relation.For example, the branch that is designated as the down A1 display lamp 81 of drawing is illustrated in the demonstration of "on" position of branch circuit breaker 2A1 and uses.In addition, in the drawings, ellipsis 2 (2A 1～2A 18, 2B 1～2B 16), 80 (80A～80C), 81 (81A 1～81A 18, 81B 1～81B 16) a part.
At the length direction one distolateral (left end side of Fig. 1) of printed circuit board (PCB) 8b, along the Width (above-below direction of Fig. 1) of printed circuit board (PCB) 8b, so that a plurality of trunks display lamp 80A～80C uniformly-spaced to be installed.In addition, at edge part, along the length direction of printed circuit board (PCB) 8b, so that 18 branches display lamp 81A that draws uniformly-spaced to be installed at the Width one distolateral (upper end side of Fig. 1) of printed circuit board (PCB) 8b 1～81A 18, at the edge part of the Width another distolateral (lower end one side of Fig. 1) of printed circuit board (PCB) 8b, along the length direction of printed circuit board (PCB) 8b, so that 16 branches display lamp 81B that draws uniformly-spaced to be installed 1～81B 16
And then, 18 branches arranging at the distolateral edge part of the Width one of printed circuit board (PCB) 8b display lamp 81A that draws 1～81A 18In from trunk with display lamp 80 side numbers, the display lamp 81 of drawing (promptly divided the display lamp 81A that draws in the 1st～16th minute 1～81A 16) with arrange the branch that the is provided with display lamp 81B that draws at another distolateral edge part of the Width of printed circuit board (PCB) 8b 1～81B 16Width along printed circuit board (PCB) 8b is arranged side by side.
, divide in the direction of the length direction of printed circuit board (PCB) 8b the interval of drawing between the display lamp 81 to equate with interval between the branch circuit breaker 2, trunk with display lamp 80 and branch draw display lamp 81 the interval also with branch circuit breaker 2 between the interval equate.The interval that the branch of the Width of printed circuit board (PCB) 8b is drawn between the display lamp 81 equates with the interval between display lamp 80A, the 80C with trunk.
At the such display unit 8 of front face side configuration of fixed component 64, divide the display lamp 81A that draws by as shown in Figure 2 1～81A 18Lay respectively at branch circuit breaker 2A 1～2A 18Neighbouring (below of Fig. 1), divide the display lamp 81B that draws 1～81B 16Lay respectively at branch circuit breaker 2B 1～2B 16Near (top of Fig. 1) separately.By this structure, the user observes the branch display lamp 81 of drawing, and just can hold the "on" position of the branch circuit breaker 2 of correspondence.Trunk is configured between the branch circuit breaker 2 and trunk circuit breaker 1 near trunk circuit breaker 1 with display lamp 80, so can not be identified as the branch display lamp 81 of drawing to trunk with display lamp 80 mistakes.
Here, show that the display unit 8 of the "on" position of branch circuit breaker 2 is positioned at the branch circuit breaker 2A of the upper layer side of broad ways arrangement 1～2A 18Downside, for the branch circuit breaker of upper layer side, the form of leaving at certain intervals at length direction is extended along the Width of casing 9.In addition, draw display lamp 81 is alongst arranged with each branch circuit breaker 2 each minute of display unit 8.Each trunk is with display lamp 80 and divide the display lamp 81 of drawing to be kept by the box body 8a that is provided with in the display unit 8.This box body 8a is configured in the position more outstanding than the bottom surface of casing 9, comprises front panel 8e with a plurality of perforate 8c, the side panel 8f that alongst extends to the bottom surface of casing 9 from the end of front panel 8e.Front panel 8e is by a plurality of perforate 8c, and each trunk is exposed with display lamp 80 and the branch display lamp 81 of drawing.The side panel 8f of present embodiment is stopping up front panel 8e and branch circuit breaker 2A 1～2A 18Between the direction (rear end that is side panel 8f is compared with front end, more near branch circuit breaker) in space tilt.With as in the past, front panel is compared during with the side panel quadrature, the distribution board of present embodiment can make from the below to branch circuit breaker 2A 1～2A 18Identity good.Also have and suppress because the effect that the construct dust that takes place or fragment accumulate in upper side.
In addition, according to covering for attractive in appearance and be necessary the mode of the fixed component 64 hidden, configuration display unit 8 so can effectively utilize space in the casing 9, when configuration display unit 8, need not maximize casing 9.
In the distribution board of present embodiment, with display lamp 80 and the branch display lamp 81 of drawing, adopt light-emitting diode (LED), particularly trunk to use the different LED of glow color respectively with display lamp 80 as trunk.For example, use the LED that radiates orange light with display lamp 80A,, use the LED of the yellowish green light of radiation,, use the LED of the light of radiation green as trunk display lamp 80C as trunk display lamp 80B as trunk.In addition, as the branch display lamp 81 of drawing, use the LED of the red light of radiation., described example only is an example, is not limited thereto, and change can suit.
Drive circuit portion 83 for example is made of the integrated circuit with CPU, according to index from 7 outputs of index calculating part, trunk with display lamp 80 and branch draw display lamp 81 and buzzer 82 supply capabilities, is carried out trunk with display lamp 80 with divide the change of the operate condition (for example light, extinguish, glimmer) of the display lamp 81 of drawing, the buzzing of buzzer 82.
Such index calculating part 7 for example has the container body 7a that is made of the resin material with insulating properties, and this container body 7a forms the size of branch circuit breaker 2 about 2 of roomy direction (Width) arrangements.The length direction one distolateral side wall portion of this container body 7a be provided with the branch that on contact rod 60, is provided with draw portion of terminal 7b that the edge part of Width of contact rod 60a or contact rod 61 is connected, with being connected of sensor assembly 62 in the transducer usefulness connecting portion (not shown) that uses.In addition, another the distolateral side wall portion formation of length direction at container body 7a is connected the output terminal part of trunk circuit breaker 1 or the portion of terminal (not shown) on the display unit 8.In addition, same with branch circuit breaker 2 in container body 7a, the fixedly teat 7d among the 64a of fixing hole portion that is embedded in fixed component 64 is set.
Take in not shown printed circuit board (PCB) in the inside of container body 7a, various electronic components are installed on this printed circuit board (PCB), are comprised: from trunk with measurement section 4 and the branch measurement section 3 of drawing, the data collection portion 70 of collected current value in 62 (trunk current value and branch current value), constitute and store the storage part 71 of each current value of collecting by data collection portion 70 etc. by nonvolatile memory, determine to represent the computing portion 72 that itself and the trunk of the relation of predetermined reference current value are drawn desired value with desired value and branch respectively about the current value of collecting by data collection portion 70, by the trunk of computing portion 72 decision with desired value with the efferent 73 that divides the desired value of drawing that display unit 8 is exported, be used to set the operation inputting part 74 of change etc.In addition, index calculating part 7 also can have the function of the data such as each current value of being collected by data collection portion 70 to the equipment of outside (for example, offseting the equipment that power consumption power etc. is counted) output.
Operation inputting part 74 is used to change the various settings of index calculating part 7, have the setting model selection and use switch 74e with switch 74a, circuit breaker appointment switch 74b, energising demonstration with the volume adjustment switch 74d of switch 74c, buzzer 82, the trunk rated current setting of trunk circuit breaker 1, these switches 74a～74e exposes setting in the front of container body 7a.In addition, described example only is an example, and the structure of operation inputting part 74 is not limited to described example.
By the described triggering signal of data collection portion 70 output, collect the current value of branch circuit breaker 2 from the draw sensor unit 62d of measurement section 3,62 of branch.In addition, the current value of trunk circuit breaker 1 is collected by data collection portion 70 with measurement section 4 from the trunk that is connected the trunk circuit breaker 1 on the index calculating part 7.Therefore, in the distribution board of present embodiment, the trunk of the current value that measurement is supplied with by 1 pair of trunk circuit of trunk circuit breaker 10 is measured current value with measurement section 4 with according to the branch that a plurality of branch circuit breakers 2 are measured the current value by 2 pairs of electric equipments supplies of the branch circuit breaker respectively measurement section 3,62 of drawing.
Here, index calculating part 7 is by transmission route L shown in Figure 3, and each the sensor unit 62d with measurement section 4 and sensor assembly 62 is connected with trunk.Here, transmission route L comprises 3 lines that connect index calculating part 7 and a plurality of sensor unit 62d (trigger with transmission line L1 and data with transmission line L2 and ground wire L3), is connected the trunk current delivery line L4 of index calculating part 7 and trunk usefulness measurement section 4.Triggering is used for the triggering signal of data collection portion 70 outputs is transferred to a plurality of sensor unit 62d in order with transmission line L1, uses transmission line L1 by this triggering, and a plurality of sensor unit 62d are connected in the data collection portion 70 with chain.Data are used for the current value of each sensor unit 62d output is transferred to data collection portion 70 with transmission line L2.Each ground wire L3 uses the voltage reference of transmission line L2 to use as triggering with transmission line L1 and data in index calculating part 7 or each sensor unit 62d etc.In addition, about ground wire L3, for the simplification of accompanying drawing, the diagram of the coupling part between omission and the sensor unit 62d.
Index calculating part 7 has energising display mode and energy saver mode.The switching of energising display mode and energy saver mode uses the energising demonstration of operation inputting part 74 to carry out with switch 74c.
Computing portion 72 under the energising display mode is according to the current value of the trunk circuit breaker of being collected by data collection portion 70 1 and the current value of each branch circuit breaker 2, in order to show the "on" position of trunk circuit breakers 1 and the "on" position of each branch circuit breaker 2 at display unit 8, generate trunk with index and the branch index of drawing.
Here, trunk generates as described below with index and the branch index of drawing.At first, if computing portion 72 obtains the current value of trunk circuit breaker 1 and the current value of branch circuit breaker 2 from data collection portion 70,, calculate ratio (in the present embodiment, being percentage) for load current value about the current value of each circuit breaker.Then, computing portion 72 is according to the size of each ratio of calculating, generates to be used for the regulation trunk and to draw the trunk of lighting pattern or operate condition of display lamp 81 with index and the branch index of drawing with display lamp 80 and branch.
If the current value of trunk circuit breaker 1 ratio of this load current value relatively is below 5%, computing portion 72 just judges that trunk circuit breaker 1 is in nonconducting state, if the current value of trunk circuit breaker 1 ratio of this load current value relatively surpasses 5%, just judge that trunk circuit breaker 1 is in "on" position.The computing portion 72 of present embodiment generates the trunk index, if thereby the ratio of relative this load current value of the current value of trunk circuit breaker 1 is below 5%, trunk extinguishes with the whole of display lamp 80A～80C, if surpass 5% and be below 20%, trunk is lighted with display lamp 80C, if surpass 20% and be below 80%, trunk display lamp 80B, 80C both sides light, if surpass 80% and be below 100%, trunk is lighted with the whole of display lamp 80A～80C, all glimmers with display lamp 80A～80C if surpass 100% (promptly being in over-current state) trunk.
On the other hand, when showing the "on" position of branch circuit breaker 2, judge that in computing portion 72 by the draw current value of the branch circuit breaker 2 that measurement section obtains of branch be that load current value by this branch circuit breaker 2 is with the predetermined current threshold of making decision when following, when being judged to be above current threshold, generate the different branches index of drawing, have and make the draw different energising display mode of operate condition of display lamp 81 of branch.In the present embodiment, for load current value, the current value decision that is equivalent to the branch circuit breaker 2 of 5% ratio is described predetermined current threshold value.If this is below current threshold, the computing portion 72 of present embodiment just judges that the branch circuit breaker of measuring 2 is in nonconducting state, not flowing through should be to the electric current of electric equipment supply, if surpass this threshold value, just judge that the branch circuit breaker of measuring 2 is in conducting state, flowing through should be to the electric current of electric equipment supply.
In the energising display mode of present embodiment, computing portion 72 generates and divides the index of drawing, if the current value of branch circuit breaker 2 is (the 3rd levels of current) below 5% with respect to the ratio of its load current value, the branch corresponding with this branch circuit breaker 2 display lamp 81 of drawing extinguishes, if surpass 5% and be (second levels of current) below 100%, the branch corresponding with this branch circuit breaker 2 display lamp 81 of drawing is just lighted, if surpass 100% (first levels of current, be overcurrent condition), the branch corresponding display lamp 81 flickers of drawing with this branch circuit breaker 2.By selecting the energising display mode, the user divides the display lamp 81 of drawing by observing, and just can differentiate corresponding branch circuit breaker 2 and be in "on" position or be in non-power status, can know easily that the current value of branch circuit breaker 2 surpasses load current value.
, computing portion 72 except the regulation trunk with display lamp 80 with divide the branch of the operate condition of the display lamp 81 of the drawing index of drawing, also generate the controller index of the buzzing control that is used for buzzer 82.
For example, computing portion 72 is according to following generation buzzing index: if the current value of branch circuit breaker 2 surpasses 100% and be lower than 110% with respect to the ratio of load current value, just generate to make the buzzing index of buzzer 82 sounds of movement in 3 minutes at interval, if more than 110% and be lower than 120%, just generate to make the buzzing index of buzzer 82 sounds of movement in 10 seconds at interval, if more than 120%, just generate to make the buzzing index of buzzer 82 sounds of movement in 5 seconds at interval.When generation is used index about the buzzing of buzzer 82, to the data of buzzing with the volume of index additional representation buzzer 82.The volume adjustment of data by operation inputting part 74 of the volume of expression buzzer 82 with switch 74d (for example from " greatly ", " little ", selection " cut-out " (representing not buzzing).In addition, the volume adjustment is used the volume control device with switch 74d, can constitute multistage volume adjustment.
In this energy saver mode, computing portion 72 is same with normal mode, if obtain the current value of trunk circuit breaker 1 and the current value of each branch circuit breaker 2 from data collection portion 70, just calculate the ratio (in the present embodiment, be percentage) of each current value with respect to load current value.
If the current value of the computing portion 72 trunk circuit breakers 1 under the energy saver mode is below 100% with respect to the ratio of load current value, just the mode of all extinguishing with display lamp 80A～80C according to trunk generates the trunk index, if surpass 100%, just according to making trunk generate the trunk index with the mode that display lamp 80A～80C all glimmers, the current value that is trunk circuit breaker 1 is no more than at 100% o'clock with respect to the ratio of load current value, trunk extinguishes with display lamp 80, so compare with normal mode, can reduce power consumption.
In addition, if the current value of computing portion 72 branch circuit breakers 2 under the energy saver mode is below 100% with respect to the ratio of load current value, just generate the branch index of drawing according to draw mode that display lamp 81 extinguishes of the branch corresponding with branch circuit breaker 2, if surpass 100%, just generate the branch index of drawing according to draw mode that display lamp 81 glimmers of the branch of correspondence.Promptly under energy saver mode, the current value of branch circuit breaker 2 is no more than at 100% o'clock with respect to the ratio of load current value, and the branch corresponding with this branch circuit breaker 2 display lamp 81 of drawing is not lighted, and does not carry out the demonstration whether branch circuit breaker 2 switches on, so compare with common display mode, can reduce power consumption.Be that the user shows with switch 74c selection energy saver mode with the energising that is provided with in the index calculating part 7, can seek energy-conservation.
, at index calculating part 7, the load current value of trunk circuit breaker 1 can be set with switch 74e by the trunk rated current of operation inputting part 74 and set.Use switch 74e as this trunk rated current setting, for example use the volume control device.Computing portion 72 is set at the load current value of trunk circuit breaker 1 with the trunk rated current and sets the corresponding value (for example, the scope of 30A～100A) in turned position of using switch 74e.
In addition, in index calculating part 7, computing portion 72 is except above-mentioned normal mode, energy saver mode, and the rated current of size that also has a load current value of change branch circuit breaker 2 is set the rated voltage of size of the load voltage value of pattern, change branch circuit breaker 2 and set pattern.
Can carry out with switch 74a by the setting model selection of operation inputting part 74 to the transfer of specified current settings pattern or rated voltage setting pattern from above-mentioned normal mode or energy saver mode.In the present embodiment, use about 3 seconds of switch 74a by continuing to push the setting model selection, computing portion 72 transfers to rated current and sets pattern, uses about 5 seconds of switch 74a by continuing to push the setting model selection, and operation inputting part 74 is transferred to rated voltage and set pattern.In addition, when computing portion 72 transfers to rated current setting pattern, 1 notification mode of buzzer 82 sounds of movement is switched, when transferring to rated voltage setting pattern, 2 notification modes of buzzer 82 sounds of movement are switched.
If computing portion 72 transfers to rated current and sets pattern, just wait for that circuit breaker specifies the input with switch 74b, when operating breaker is specified with switch 74b, just carry out switching as the branch circuit breaker 2 of the setting object of load current value.
In rated current setting pattern, computing portion 72 generates to make to be specified with the branch circuit breaker 2 pairing branches of the switch 74b appointment display lamp 81 of drawing by circuit breaker and lights, other branch circuit breaker 2 pairing branches are drawn branch circuit breaker specification signal that display lamp 81 extinguishes.Be that computing portion 72 makes and specifies with the branch circuit breaker 2 pairing branches of switch 74b appointment the draw operate condition of display lamp 81 of operate condition and other branches of display lamp 81 of drawing different by circuit breaker, thereby, can differentiate the branch circuit breaker 2 of appointment easily for the user.
In addition, computing portion 72 shows the load current value of being specified the branch circuit breaker 2 of using switch 74b appointment by circuit breaker by the pattern of lighting of trunk with display lamp 80A～80C.At this moment, when computing portion 72 specifies the model selection of the function of using switch to use switch 74a whenever operation double as rated current, with the setting of predetermined periodic change load current value.In the present embodiment, as the load current value of branch circuit breaker 2, can from these 5 kinds of " 15A ", " 20A ", " 30A ", " other ", " sunlights ", select.Computing portion 72 generates the signal of load current value, in " 15A ", trunk is lighted with display lamp 80C, when " 20A ", trunk is lighted with display lamp 80B, when " 30A ", trunk is lighted with display lamp 80A, when " other ", trunk is all extinguished with display lamp 80A～80C, when " sunlight ", trunk is all lighted with display lamp 80A～80C.By according to lighting pattern, with display lamp 80A～80C, the user can confirm the load current value of branch circuit breaker 2 easily with a plurality of trunks of the load current value of the branch circuit breaker 2 of multistage demonstration appointment.In addition, computing portion 72 is in rated current setting pattern, if certain hour is not set model selection and is specified the input of using switch 74b with switch 74a or circuit breaker, just store changed content, get back to normal mode (perhaps energy saver mode) from rated current setting pattern.This point in rated voltage setting pattern too.
If computing portion 72 transfers to rated voltage and sets pattern, just wait for that circuit breaker specifies the input with switch 74b, specify and use switch 74b whenever operating breaker, just carry out switching as the branch circuit breaker 2 of the setting object of load current value.
In rated voltage setting pattern, computing portion 72 generates the branch circuit breaker specification signal, extinguish thereby make to specify with the branch circuit breaker 2 pairing branches of the switch 74b appointment display lamp 81 of drawing, other branch circuit breaker 2 pairing branches display lamp 81 of drawing is lighted by circuit breaker.Be that computing portion 72 is same with rated current setting pattern, make specify with the branch circuit breaker 2 pairing branches of switch 74b appointment the draw operate condition of display lamp 81 of operate condition and other branches of display lamp 81 of drawing by circuit breaker different, thereby make the user can differentiate the branch circuit breaker 2 of appointment easily.Computing portion 72 generates the branch circuit breaker specification signal, the draw operate condition of display lamp 81 of branch when the operate condition of display lamp 81 is set pattern with rated voltage thereby the branch when making rated current set pattern is drawn is different, and rated current is set pattern and rated voltage is set pattern so the user can distinguish easily.
In addition, computing portion 72 shows the load voltage value of being specified the branch circuit breaker 2 of using switch 74b appointment by circuit breaker according to the pattern of lighting of trunk with display lamp 80A～80C.At this moment, computing portion 72 is when operation double as rated value specifies the model selection of the function of using switch to use switch 74a, with the setting of predetermined periodic change load voltage value.In the present embodiment, load voltage value as branch circuit breaker 2, can from these 2 kinds of " 100V ", " 200V ", select, computing portion 72 generates the rated voltage value signal, thereby when " 100V ", trunk is lighted with the whole of display lamp 80A～80C, when " 200V ", made the whole flickers of trunk with display lamp 80A～80C.According to a plurality of trunks display lamp 80A～80C that lights pattern displaying, the user can confirm the load voltage value of the branch circuit breaker 2 of appointment easily, can prevent the misspecification of load voltage value.
Casing 9 for example the orientation of branch circuit breaker 2 (length direction of box body 90) along left and right directions, and with branch circuit breaker 2A 1～2A 18Be positioned at upside, branch circuit breaker 2B 1～2B 16Be positioned at the form of downside, be installed near the ceiling of building elements such as wall (not shown).
This casing 9 has the box body 90 of casing shape of the cuboid of front openings, in box body 90, shown in Fig. 4～7, takes in above-mentioned trunk circuit breaker 1, a plurality of branch circuit breaker 2, branch's module 6, index calculating part 7, display unit 8.At this moment, display unit 8 is configured to cover the form of the front of fixed component 64 as mentioned above, and in view of the above, the branch that uses in the demonstration of the "on" position of branch circuit breaker 2, this branch circuit breaker 2 display lamp 81 of drawing closely disposes.
Like this, in the box body 90 of taking in each parts, as shown in Figure 1, middle cover 91 is installed.
Middle cover 91 covers the front of box body 90 with the form of the power pack of covering trunk circuit breaker 1 or branch circuit breaker 2, branch's module 6 etc.Form the lever 1d that makes trunk circuit breaker 1 at middle cover 91, the 1e of window portion, the trunk side opening 91a of portion of the rectangular shape that Test Switchboard 1f exposes, make each branch circuit breaker 2, the 91b of side opening portion of branch of the rectangular shape that index calculating part 7 and display unit 8 expose, be installed under the state on the box body 90 under (states shown in Figure 15～18) at middle cover 91, can carry out the lever 1d of trunk circuit breaker 1, the lever 2c of branch circuit breaker 2, the operation of operation inputting part 74 grades of index calculating part 7, in addition, can confirm the trunk display lamp 80 of display unit 8, the operate condition that divides the display lamp 81 of drawing.
, be formed for installing the axial region 91c of door 92 described later at the length direction both ends (the left and right directions both ends of Fig. 1) of the Width one distolateral (upper end side of Fig. 1) of the front face side of middle cover 91.This axial region 91c has identical central shaft, and the direction of this central shaft becomes the length direction (equaling the length direction of box body 90) of middle cover 91.
Described door 92 forms size tabular of front openings that can inaccessible box body 90, and the 92a of bearing portion that can support this axial region 91c around this central shaft freely to rotate is set at the position corresponding with axial region 91c.Therefore, but door 92 be installed on the box body 90 in the mode of the front openings of freely openable box body 90.In addition, shown in Figure 19～20, a plurality of trunks of being provided with of making on the display unit 8 are being set with display lamp 80 with divide the display lamp 81 of drawing to face the fenestra 92b of front on the door 92.
Fenestra 92b is by gathering 3 trunks with display lamp 80, can constitute in the face of the rectangular aperture of the size of outside degree, on door 92 along this length direction uniformly-spaced to form.Here, the interval between the fenestra 92b equates with the interval (being the interval between the branch circuit breaker 2) of drawing between the display lamp 81 along the branch of the direction of printed circuit board (PCB) 2b length direction.Therefore, at the length direction of door 92, trunk with display lamp 80 and branch draw display lamp 81 respectively from fenestra 92b in the face of outside.Promptly the position between door 92 the fenestra 92b is as the effect of shading wall, in view of the above, become confirm easily that a plurality of trunks draw in the display lamp 81 with display lamp 80 and branch any is luminous.
, a plurality of fenestra 92b is arranged on the bottom of recess 92c of the formed long ribbon shape in front of door 92.Be embedded in the diffuser 93 that constitutes by the resin forming product that uses transparent resin material (as an example, allyl resin) at this recess 92c.In addition, at the length direction of recess 92c, form the shape that door 92 front continues between two ends at door 92.Here, surface at diffuser 93 is formed with (perhaps sticking film) will be from light (exterior light) reflection of the front face side of door 92, the film that sees through from the light of the back side of door 92 (trunk is with display lamp 80 and divide the light of the display lamp 81 of drawing), in view of the above, can't observe fenestra 92b from the outside of door 92, so aesthetic property improves.
In addition, the final only an embodiment of the invention of the distribution board of present embodiment, the present invention is not limited to the distribution board of present embodiment, can change in the scope that does not break away from aim of the present invention certainly.

Claims (1)

1. distribution board has:
Casing, it is installed on the building element and uses;
The trunk circuit breaker, it is accommodated in the described casing;
A plurality of branch circuit breakers, it is accommodated in the described casing, is arranged at respectively the branch circuit of the trunk circuit branch that is connected from the outlet side with described trunk circuit breaker;
Display unit, it has a plurality of branches display lamp of drawing, and these a plurality of branches display lamp of drawing is used for showing that described branch circuit breaker flows through the above electric current of predetermined value,
It is characterized in that:
Described casing has laterally, vertically and the size of depth direction, and have the bottom surface,
Described display unit has and keeps the draw box body of display lamp of described branch, the side panel that described box body has the front panel that is configured in the position outstanding from the described bottom surface of described casing, extends to the described bottom surface of described casing from the described end longitudinally of front panel, described each minute, the display lamp of drawing exposed at described front panel
Described a plurality of branch circuit breaker in described casing, along described transversely arranged be row,
Described display unit with the described form of vertically separating of being listed in of described branch circuit breaker, become abreast in casing along described horizontal expansion with the row of described branch circuit breaker, each minute drawn display lamp and described each branch circuit breaker along described vertical arrangement;
Described side panel is sealed the space between described front panel and the described branch circuit breaker row obliquely.
CN2008101770906A 2007-11-21 2008-11-21 Switchboard Active CN101442190B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2007302022 2007-11-21
JP2007302022A JP4406025B2 (en) 2007-11-21 2007-11-21 Distribution board
JP2007-302022 2007-11-21

Publications (2)

Publication Number Publication Date
CN101442190A CN101442190A (en) 2009-05-27
CN101442190B true CN101442190B (en) 2011-09-07

Family

ID=40726496

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008101770906A Active CN101442190B (en) 2007-11-21 2008-11-21 Switchboard

Country Status (2)

Country Link
JP (1) JP4406025B2 (en)
CN (1) CN101442190B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10116130B2 (en) 2012-08-31 2018-10-30 Nec Corporation Distribution board, power consumption managing system, and methods for manufacturing distribution board and power consumption managing system
JP6043670B2 (en) * 2013-03-28 2016-12-14 河村電器産業株式会社 Distribution board
JP6043669B2 (en) * 2013-03-28 2016-12-14 河村電器産業株式会社 Distribution board
JP6403044B2 (en) * 2014-04-07 2018-10-10 パナソニックＩｐマネジメント株式会社 Power meter, power meter for distribution board and distribution board using the same
JP6681600B2 (en) * 2014-04-18 2020-04-15 パナソニックＩｐマネジメント株式会社 Distribution board housing and distribution board
CN104810728B (en) * 2015-04-22 2017-08-15 新余宇浩科技发展有限公司 Intelligent touch distribution box
CN105738687A (en) * 2016-04-14 2016-07-06 陈继祥 Portable special ground-potential live-line load current detection apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2669432Y (en) * 2003-12-10 2005-01-05 太原钢铁(集团)有限公司 Movable power switchboard
CN1252887C (en) * 2002-07-26 2006-04-19 松下电工株式会社 Distribution board

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1252887C (en) * 2002-07-26 2006-04-19 松下电工株式会社 Distribution board
CN2669432Y (en) * 2003-12-10 2005-01-05 太原钢铁(集团)有限公司 Movable power switchboard

Also Published As

Publication number Publication date
CN101442190A (en) 2009-05-27
JP4406025B2 (en) 2010-01-27
JP2009131009A (en) 2009-06-11

Similar Documents

Publication Publication Date Title
CN101521357B (en) Distribution board
CN101442190B (en) Switchboard
US9295170B1 (en) Programmable landscape lighting controller with self-diagnostic capabilities and fail safe features
US8558710B1 (en) Duplex outlet with current indicator
US6504268B1 (en) Transfer switch with selectively configurable cover structure with power input and meter capability
CN201594664U (en) Electric energy metering socket with electric leakage and overload protection function
JP4705622B2 (en) Distribution board
GB2450426A (en) Circuit breaker electrical power consumption monitoring
KR200392807Y1 (en) Switch structure for breaking a electric power
US8221166B2 (en) Phantom power saver power tap
JP7199010B2 (en) Power distribution system and switchboard system
WO2008125813A1 (en) Electrical connectors for power supply
JP2010057238A (en) Distribution panel
JP5014742B2 (en) SPD and residential distribution boards
JP6252946B2 (en) Measuring system, distribution board cabinet, distribution board
US20070037441A1 (en) Layman's electrical assistant
CN216564146U (en) Intelligent power supply and distribution device for rack type LED display screen
CN216720541U (en) Combined grounding device
CN217823772U (en) Improved low-voltage power distribution cabinet
CN106154004A (en) A kind of compact electric energy meter batch meter
CN215267225U (en) Building house logic intelligent distribution box
CN210040801U (en) Combined socket
CN211739279U (en) Combined control switch assembly for multifunctional household bathroom warmer
US11394191B1 (en) Hidden text based led indicators for GFCIS and receptacles
CN218676978U (en) Low-voltage intelligent circuit breaker

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant