CN113421379A - Multifunctional intelligent electric meter - Google Patents

Multifunctional intelligent electric meter Download PDF

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Publication number
CN113421379A
CN113421379A CN202110666280.XA CN202110666280A CN113421379A CN 113421379 A CN113421379 A CN 113421379A CN 202110666280 A CN202110666280 A CN 202110666280A CN 113421379 A CN113421379 A CN 113421379A
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CN
China
Prior art keywords
butt joint
fixedly connected
fixing
ammeter
electric meter
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.)
Granted
Application number
CN202110666280.XA
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Chinese (zh)
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CN113421379B (en
Inventor
费贵淮
武军华
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Shenzhen City Singhang Electric Technology Co ltd
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Shenzhen City Singhang Electric Technology Co ltd
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Priority to CN202110666280.XA priority Critical patent/CN113421379B/en
Publication of CN113421379A publication Critical patent/CN113421379A/en
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Publication of CN113421379B publication Critical patent/CN113421379B/en
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    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F15/00Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
    • G07F15/003Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity for electricity
    • B08B1/143
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F15/00Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
    • G07F15/06Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity with means for prepaying basic charges, e.g. rent for meters
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F15/00Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
    • G07F15/10Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity with alarm or warning devices, e.g. indicating the interrupting of the supply
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F9/00Details other than those peculiar to special kinds or types of apparatus
    • G07F9/02Devices for alarm or indication, e.g. when empty; Advertising arrangements in coin-freed apparatus
    • G07F9/026Devices for alarm or indication, e.g. when empty; Advertising arrangements in coin-freed apparatus for alarm, monitoring and auditing in vending machines or means for indication, e.g. when empty
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F9/00Details other than those peculiar to special kinds or types of apparatus
    • G07F9/10Casings or parts thereof, e.g. with means for heating or cooling
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18Status alarms
    • G08B21/24Reminder alarms, e.g. anti-loss alarms
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/36Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources

Abstract

The invention discloses a multifunctional intelligent electric meter and relates to the technical field of intelligent electric meters. This multifunctional intelligent electric meter, fixing bolt moves down the sinle silk of output wire and input wire one end and the inside contact of contact tube and fix, rotate the extrusion ring again, make the one end shrink of extrusion ring extrude the one end of pipe, can clip output wire and input wire through the inside of extrusion pipe like this, make output wire and input wire pass through the fixed plate and link together with the ammeter body, let output wire and input wire receive external force and can not come out from the butt joint hole, improve output wire and input wire connection and the effect of passing through fixed plate and this body coupling of ammeter, turn over the inside that the protective cover inserted IC rechargeable card into the card groove, shovel board and the wiping arm at apron top wipe the dust of IC rechargeable card both sides, prevent that the dust of IC rechargeable card both sides from falling into inside the ammeter body, improve IC rechargeable card and the inside iron core contact effect of ammeter body.

Description

Multifunctional intelligent electric meter
Technical Field
The invention relates to the technical field of intelligent electric meters, in particular to a multifunctional intelligent electric meter.
Background
The main type of the intelligent ammeter is an IC card ammeter, a user holds an IC card to a power supply department to pay and purchase electricity, the power supply department writes the electricity purchasing quantity into the IC card through an electricity selling management machine, the user holds the IC card to brush a non-contact IC card (card swiping for short) in an induction area, then the intelligent ammeter can be switched on to supply power, and the card is taken away after power supply. When the residual electric quantity in the meter is equal to the alarm electric quantity, the switch is pulled out and the power is cut off for alarm (or a buzzer alarms), and at the moment, the user can recover power supply by swiping a card in the induction area; when the residual electric quantity is zero, the automatic brake is pulled out and the power is cut off, and the user must hold the card again to pay for the electricity and can recover the electricity.
At present, the multi-functional smart electric meter that each family used, when using, most multi-functional smart electric meter's output wire and input wire receive the influence of external force, let output wire and input wire can follow the butt joint hole and extract, perhaps the inside electric current of smart electric meter spills from smart electric meter is inside and does not have the suggestion, let the staff when overhauing smart electric meter, can cause accident because of the electric leakage, for this reason, technical personnel in the field have provided a multi-functional smart electric meter.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a multifunctional intelligent electric meter, which solves the problem that no prompt is given when the current in the intelligent electric meter leaks from the inside of the intelligent electric meter, and accidents are caused by the leakage when workers overhaul the intelligent electric meter.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a multifunctional intelligent ammeter, includes the ammeter body, the front side fixedly connected with fixed establishment of ammeter body, the electric leakage suggestion mechanism has been cup jointed in the outside of ammeter body, the fixed ear of the equal fixedly connected with in both sides is detained around the electric leakage suggestion mechanism left and right sides.
Preferably, fixed establishment includes the fixed plate, the rear side at fixed plate top is rotated through the pivot and is connected with fixed lid, four groups of butt joint holes have been seted up to the front side of fixed plate, four groups of fixed slots have been seted up at the top of fixed lid, and the inside fixedly connected with circular telegram pilot lamp of fixed slot, the bottom fixedly connected with pointer subassembly of circular telegram pilot lamp, circular telegram pilot lamp is located directly over the butt joint hole, the top of fixed plate just is located the butt joint hole and directly over threaded connection has fixing bolt, fixing bolt's bottom is run through the butt joint hole and is extended to the inside in butt joint hole, the front side of fixed plate just is located the front side fixedly connected with extrusion pipe in butt joint hole, the outside threaded connection of extrusion pipe has the extrusion ring.
Preferably, electric leakage suggestion mechanism is including docking the storehouse, the rear side that docks the storehouse top rotates through the pivot to be connected with the protective cover, the bottom fixedly connected with butt joint iron sheet that docks the storehouse internal surface, the bottom fixedly connected with transfer chain that docks the iron sheet, the one end of transfer chain runs through the butt joint storehouse and extends to the bottom that docks the storehouse, the equal fixedly connected with electro-magnet of the left and right sides at butt joint storehouse top, the equal fixedly connected with in the left and right sides of protective cover bottom adsorbs the iron plate, the top fixed connection warning light of protective cover.
Preferably, the rear side fixedly connected with display at ammeter body top, the top of ammeter body just is located the front side fixedly connected with indicator plate of display, the top of ammeter body just is located the front side fixedly connected with adjustment button of indicator plate, the top of ammeter body just is located adjustment button's right side and has seted up with money the draw-in groove, the top fixedly connected with clearance mechanism who adds money the draw-in groove.
Preferably, a trip indicator light and a pulse indicator light are fixedly connected to the indicator board from left to right.
Preferably, the pointer assembly comprises a docking sleeve, a docking pointer is connected to the inner surface of the docking sleeve in a sliding mode, the bottom of the inner surface of the docking sleeve is fixedly connected with the bottom of the docking pointer through a first spring, and the top of the docking pointer is fixedly connected with the bottom of the power-on indicator lamp.
Preferably, the clearance mechanism includes the adjustment frame, the left and right sides of adjustment frame internal surface all is connected with the apron through the pivot rotation, through first spring fixed connection between the bottom of apron and the internal surface of recharging the draw-in groove, the internal surface fixedly connected with shovel board that the top of apron is close recharging the draw-in groove, and the slope of shovel board sets up, the top fixedly connected with wiper arm of shovel board.
Preferably, the inner surface of the butt joint hole is fixedly connected with a conductive tube, and one end of the conductive tube penetrates through the electric meter body and extends to the inside of the electric meter body.
Preferably, the top of the butt joint iron sheet is contacted with the bottom of the electric meter body, and the front side and the rear side of the left side and the right side of the butt joint bin are respectively and fixedly connected with one side of the fixing lug buckle.
(III) advantageous effects
The invention provides a multifunctional intelligent ammeter. The method has the following beneficial effects:
(1) this multifunctional intelligent electric meter, through defeated sinle silk downwardly moving that rotates fixing bolt with output wire and input wire one end and the inside contact of contact tube and fixed, rotate the extrusion ring again, make the one end shrink extrusion tube's of extrusion ring one end, can clip output wire and input wire through the inside of extrusion tube like this, make output wire and input wire pass through the fixed plate and link together with the ammeter body, let output wire and input wire receive external force can not come out from the butt joint hole, improve output wire and input wire connection and through the effect of fixed plate with this body coupling of ammeter.
(2) This multi-functional smart electric meter, when the ammeter body electric leakage, will leak in the outside electric current introduction underground of ammeter body through transfer chain and butt joint iron sheet, start the electro-magnet simultaneously, the electro-magnet absorbs the electric current on the butt joint iron sheet, makes the electro-magnet circular telegram glue on adsorbing the iron plate, adsorbs the protective cover on the butt joint storehouse to let the warning light, can remind the staff through the warning light like this, ammeter body electric leakage reduces the loss of voltage.
(3) This multi-functional smart electric meter through when needs charge for the ammeter body, turns over the inside that the protective cover inserted IC rechargeable card and supplements the draw-in groove, and the shovel board and the wiper arm at apron top wipe the dust of IC rechargeable card both sides, prevent that the dust of IC rechargeable card both sides from falling into inside the ammeter body, improve IC rechargeable card and the inside iron core contact effect of ammeter body.
(4) The input electric wire of electro-magnet absorbs the electric current on the butt joint iron sheet, makes the electro-magnet circular telegram glue on adsorbing the iron plate, adsorbs the protective cover on the butt joint storehouse to let the warning light, the electric power of electro-magnet derives from the electric leakage, can save the outside and provide electric power on the one hand, on the other hand, as long as there is the protective cover just can not be opened under the condition of electric leakage, prevents the maloperation of external power source, has played the effect with the pilot lamp dual fail-safe.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of the leakage prompting mechanism of the present invention;
FIG. 3 is a schematic structural view of the fixing mechanism of the present invention;
FIG. 4 is a schematic structural diagram of a pointer assembly of the present invention;
FIG. 5 is a schematic structural diagram of the cleaning mechanism of the present invention.
In the figure, 1, a meter body; 2. a fixing mechanism; 3. a leakage prompting mechanism; 4. fixing the ear clip; 5. a fixing plate; 6. a fixed cover; 7. a butt joint hole; 8. a power-on indicator light; 9. fixing the bolt; 10. extruding the tube; 11. an extrusion ring; 12. butting a bin; 13. a protective cover; 14. butt-jointing iron sheets; 15. a conveying line; 16. an electromagnet; 17. adsorbing iron blocks; 18. a warning light; 19. a display; 20. an indicator panel; 21. an adjustment button; 22. a recharging card slot; 23. a cleaning mechanism; 24. a pointer component; 25. butting a sleeve; 26. butting pointers; 27. a first spring; 28. an adjusting frame; 29. a cover plate; 30. a shovel plate; 31. a wiping lever; 32. a conductive tube; 33. a second spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an embodiment of the present invention provides a technical solution: a multifunctional intelligent ammeter comprises an ammeter body 1, wherein a fixing mechanism 2 is fixedly connected to the front side of the ammeter body 1, a leakage prompting mechanism 3 is sleeved outside the ammeter body 1, fixing ear buckles 4 are fixedly connected to the front side and the rear side of the left side and the right side of the leakage prompting mechanism 3, the fixing mechanism 2 comprises a fixing plate 5, a fixing cover 6 is rotatably connected to the rear side of the top of the fixing plate 5 through a rotating shaft, four groups of butt joint holes 7 are formed in the front side of the fixing plate 5, four groups of fixing grooves are formed in the top of the fixing cover 6, a power-on indicator lamp 8 is fixedly connected to the inside of each fixing groove, a pointer assembly 24 is fixedly connected to the bottom of each power-on indicator lamp 8, the power-on indicator lamp 8 is located right above each butt joint hole 7, a fixing bolt 9 is connected to the top of the fixing plate 5 and is located right above each butt joint hole 7 through threads, the bottom of each fixing bolt 9 penetrates through each butt joint hole 7 and extends into each butt joint hole 7, the front side of the fixed plate 5 and the front side of the butt joint hole 7 are fixedly connected with an extrusion pipe 10, the external thread of the extrusion pipe 10 is connected with an extrusion ring 11, the electric leakage prompting mechanism 3 comprises a butt joint bin 12, the rear side of the top of the butt joint bin 12 is rotatably connected with a protective cover 13 through a rotating shaft, the bottom of the inner surface of the butt joint bin 12 is fixedly connected with a butt joint iron sheet 14, the bottom of the butt joint iron sheet 14 is fixedly connected with a conveying line 15, one end of the conveying line 15 penetrates through the butt joint bin 12 and extends to the bottom of the butt joint bin 12, the left side and the right side of the top of the butt joint bin 12 are both fixedly connected with electromagnets 16, the left side and the right side of the bottom of the protective cover 13 are both fixedly connected with adsorption iron blocks 17, the top of the protective cover 13 is fixedly connected with a prompting lamp 18, the input wires of the electromagnets 16 and the prompting lamp 18 are fixedly connected with the external of the butt joint iron sheet 14, the rear side of the top of the ammeter body 1 is fixedly connected with a display 19, the top of the ammeter body 1 and the front side of the display 20 is fixedly connected with the display 19, an adjusting button 21 is fixedly connected to the top of the electric meter body 1 and located on the front side of the indicating plate 20, a recharging slot 22 is formed in the top of the electric meter body 1 and located on the right side of the adjusting button 21, a cleaning mechanism 23 is fixedly connected to the top of the recharging slot 22, a tripping indicator lamp and a pulse indicator lamp are fixedly connected to the top of the indicating plate 20 from left to right, the pointer assembly 24 comprises a docking sleeve 25, a docking pointer 26 is slidably connected to the inner surface of the docking sleeve 25, the bottom of the inner surface of the docking sleeve 25 is fixedly connected to the bottom of the docking pointer 26 through a first spring 27, the top of the docking pointer 26 is fixedly connected to the bottom of the power-on indicator lamp 8, the cleaning mechanism 23 comprises an adjusting frame 28, cover plates 29 are rotatably connected to the left side and the right side of the inner surface of the adjusting frame 28 through rotating shafts, and the bottom of the cover plates 29 is fixedly connected to the inner surface of the recharging slot 22 through the first spring 27, the top of apron 29 is close to the internal surface fixedly connected with shovel board 30 who supplements value draw-in groove 22, and shovel board 30 slope sets up, the top fixedly connected with wiping bar 31 of shovel board 30, and the internal surface fixedly connected with current-conducting tube 32 of butt joint hole 7, the inside that ammeter body 1 and extended to ammeter body 1 is run through to the one end of current-conducting tube 32, and the top that docks iron sheet 14 contacts with the bottom of ammeter body 1, dock 12 left and right sides around both sides respectively with one side fixed connection of fixed ear clip 4.
When the electric meter works, firstly, the butt joint cabin 12 is placed in the installation box, the bolt in the fixed lug buckle 4 is rotated, the butt joint cabin 12 is fixed in the installation box, the protective cover 13 is turned over, the electric meter body 1 is turned into the butt joint cabin 12, then, the fixed cover 6 is covered by the rotating bolt, the butt joint pointer 26 is contacted with the top of the fixed bolt 9, secondly, the output electric wire is electrified for the electric meter body 1, so that the electric meter body 1 runs, when the electric meter body 1 runs, the power-on indicator lamps 8 at the tops of the output electric wire and the input electric wire are lightened, when the power-on indicator lamp 8 at the top of the output electric wire is not lightened, the joint of the output electric wire and the electric meter body 1 is not electrified, when the power-on indicator lamp 8 at the top of the input electric wire and the output electric wire is not lightened, when the power-on indicator lamps 8 at the tops of the input electric wire and the output electric wire, inside short circuit of ammeter body 1, when ammeter body 1 electric leakage, butt joint iron sheet 14 will leak the inside of introducing transfer chain 15 and spreading into the underground at the outside electric current of ammeter body 1, the input electric wire of electro-magnet 16 absorbs the electric current on butt joint iron sheet 14 simultaneously, make the electro-magnet 16 circular telegram glue on adsorbing iron plate 17, adsorb protective cover 13 on butt joint storehouse 12, and let warning light 18 light, when needs charge for ammeter body 1, turn over protective cover 13 and insert IC rechargeable card inside of recharging card slot 22, the shovel board 30 and the wiping arm 31 at apron 29 top wipe the dust of IC rechargeable card both sides.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a multi-functional smart electric meter, includes ammeter body (1), its characterized in that: the electric meter comprises an electric meter body (1), and is characterized in that a fixing mechanism (2) is fixedly connected to the front side of the electric meter body (1), an electric leakage prompting mechanism (3) is sleeved outside the electric meter body (1), and fixing ear buckles (4) are fixedly connected to the front side and the rear side of the left side and the right side of the electric leakage prompting mechanism (3);
the fixing mechanism (2) comprises a fixing plate (5), the rear side of the top of the fixing plate (5) is rotatably connected with a fixing cover (6) through a rotating shaft, four groups of butt joint holes (7) are formed in the front side of the fixing plate (5), four groups of fixing grooves are formed in the top of the fixing cover (6), an electrifying indicator lamp (8) is fixedly connected inside the fixing grooves, a pointer assembly (24) is fixedly connected to the bottom of the electrifying indicator lamp (8), the electrifying indicator lamp (8) is located right above the butt joint holes (7), a fixing bolt (9) is in threaded connection with the top of the fixing plate (5) and located right above the butt joint holes (7), the bottom of the fixing bolt (9) penetrates through the butt joint holes (7) and extends into the butt joint holes (7), an extruding pipe (10) is fixedly connected to the front side of the fixing plate (5) and located at the butt joint holes (7), the outer part of the extrusion pipe (10) is connected with an extrusion ring (11) through threads;
electric leakage suggestion mechanism (3) are including butt joint storehouse (12), the rear side at butt joint storehouse (12) top rotates through the pivot and is connected with protective cover (13), the bottom fixedly connected with butt joint iron sheet (14) of butt joint storehouse (12) internal surface, the bottom fixedly connected with transfer chain (15) of butt joint iron sheet (14), the one end of transfer chain (15) runs through butt joint storehouse (12) and extends to the bottom of butt joint storehouse (12), the equal fixedly connected with electro-magnet (16) in the left and right sides at butt joint storehouse (12) top, the equal fixedly connected with in the left and right sides of protective cover (13) bottom adsorbs iron plate (17), top fixed connection suggestion lamp (18) of protective cover (13).
2. The multifunctional smart meter of claim 1, wherein: the utility model discloses an ammeter is characterized in that the rear side fixedly connected with display (19) at ammeter body (1) top, the top of ammeter body (1) just is located front side fixedly connected with indicator board (20) of display (19), the top of ammeter body (1) just is located front side fixedly connected with adjustment button (21) of indicator board (20), top of ammeter body (1) just is located the right side of adjustment button (21) and has seted up and has supplemented with money draw-in groove (22), top fixedly connected with clearance mechanism (23) of supplementing with money draw-in groove (22).
3. The multifunctional smart meter of claim 2, wherein: the top of the indicating plate (20) is fixedly connected with a tripping indicating lamp and a pulse indicating lamp from left to right.
4. A multifunctional smart meter as claimed in claim 3, characterized in that: the pointer assembly (24) comprises a butt joint sleeve (25), a butt joint pointer (26) is connected to the inner surface of the butt joint sleeve (25) in a sliding mode, the bottom of the inner surface of the butt joint sleeve (25) is fixedly connected with the bottom of the butt joint pointer (26) through a first spring (27), and the top of the butt joint pointer (26) is fixedly connected with the bottom of the power-on indicator lamp (8).
5. The multifunctional smart meter of claim 4, wherein: clearance mechanism (23) are including adjusting frame (28), the left and right sides of adjusting frame (28) internal surface all is connected with apron (29) through the pivot rotation, through first spring (27) fixed connection between the bottom of apron (29) and the internal surface of recharging draw-in groove (22), the internal surface fixedly connected with shovel board (30) that the top of apron (29) is close recharging draw-in groove (22), and shovel board (30) slope sets up, the top fixedly connected with wiping lever (31) of shovel board (30).
6. The multifunctional smart meter of claim 5, wherein: the internal surface fixed connection of butt joint hole (7) has contact tube (32), the one end of contact tube (32) runs through ammeter body (1) and extends to the inside of ammeter body (1).
7. The multifunctional smart meter of claim 6, wherein: the top of the butt joint iron sheet (14) is in contact with the bottom of the electric meter body (1), and the front side and the rear side of the left side and the rear side of the butt joint bin (12) are fixedly connected with one side of the fixing ear clip (4) respectively.
CN202110666280.XA 2021-06-16 2021-06-16 Multifunctional intelligent electric meter Active CN113421379B (en)

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CN202110666280.XA CN113421379B (en) 2021-06-16 2021-06-16 Multifunctional intelligent electric meter

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Application Number Priority Date Filing Date Title
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CN113421379A true CN113421379A (en) 2021-09-21
CN113421379B CN113421379B (en) 2022-05-03

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CN212008712U (en) * 2020-04-15 2020-11-24 上海宽腾电子科技有限公司 Safe fixed subassembly based on inside electric leakage of smart electric meter
CN112290412A (en) * 2020-10-09 2021-01-29 陕西诺盈自动化仪表有限公司 Ultrasonic electronic box convenient to maintain
CN112332261A (en) * 2020-10-27 2021-02-05 杭州佑滨科技有限公司 Electric leakage protection device for electric cabinet

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CN103682995A (en) * 2013-12-06 2014-03-26 四川省华电成套设备有限公司 Cable distribution box with electric leakage detection function
CN204065189U (en) * 2014-07-28 2014-12-31 国家电网公司 Leakage-current alarm type ammeter box
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CN112290412A (en) * 2020-10-09 2021-01-29 陕西诺盈自动化仪表有限公司 Ultrasonic electronic box convenient to maintain
CN112332261A (en) * 2020-10-27 2021-02-05 杭州佑滨科技有限公司 Electric leakage protection device for electric cabinet

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