CN112578171A - Ammeter case with theftproof electricity alarm - Google Patents
Ammeter case with theftproof electricity alarm Download PDFInfo
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- CN112578171A CN112578171A CN202011432989.5A CN202011432989A CN112578171A CN 112578171 A CN112578171 A CN 112578171A CN 202011432989 A CN202011432989 A CN 202011432989A CN 112578171 A CN112578171 A CN 112578171A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/24—Arrangements for avoiding or indicating fraudulent use
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- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention discloses an electricity meter box with an electricity stealing prevention alarm, which comprises a box body, a rear cover plate, a connecting female head and a second groove, wherein an electromagnetic shielding shell is fixed in the box body, the front side and the rear side of the electromagnetic shielding shell are respectively provided with a first groove, one side of the interior of each first groove, which is close to the center of the electromagnetic shielding shell, is fixedly provided with a circuit board, and an electric quantity measuring module, an electrifying recording module and a data processing recording module are electrically fixed on the circuit board. This ammeter case with theftproof electricity alarm, be provided with and connect female and connect public head, the public head of connection of fixing on front shroud or back shroud is pegged graft on connecting female, when front shroud or back shroud need be opened, connect public head break away from with be connected female being connected, then make to connect female and be connected disconnected between the public head, passageway record module in time records information and sends to the warning light, make the toll collector of power supply office in time discover that the ammeter case is unpacked apart privately, it is more practical to use.
Description
Technical Field
The invention relates to the technical field of electric meter boxes, in particular to an electric meter box with an electricity stealing prevention alarm.
Background
The electric energy is the most extensive energy for household, usually the power is supplied by the power station in a unified way, and in order to accurately record the electricity consumption of the user, an electric meter box is needed to be used, but part of users illegally modify the electric meter box, so that the electricity recording is inaccurate, the benefit of a power supply office is damaged, the existing electric meter box is not provided with an electricity stealing prevention alarm, once the user illegally modifies the electric meter box, the appearance of the electric meter box is disguised, so that the power supply office is difficult to judge whether electricity stealing behavior occurs or not from the appearance, the existing electric meter box is not provided with an electromagnetic shielding device, so that the electric meter box cannot work under a complex electromagnetic environment, the measuring precision of the electric meter box can be influenced by electromagnetic interference equipment which is maliciously operated by part of users, the use is not practical, the existing electric meter box is only provided with one set of electricity measuring device, the actual electricity stealing amount of the user is difficult to calculate, difficulty is brought to penalty, and the existing equipment needs to be improved aiming at the problems.
Disclosure of Invention
The invention aims to provide an electric meter box with an electricity stealing prevention alarm, and aims to solve the problems that the existing electric meter box provided in the background technology is not provided with an electricity stealing prevention alarm, once a user illegally modifies the electric meter box, meanwhile, the appearance of the electric meter box is disguised, so that a power supply bureau is difficult to judge whether electricity stealing behaviors occur or not from the appearance, the existing electric meter box is not provided with an electromagnetic shielding device, the electric meter box cannot work in a complex electromagnetic environment, electromagnetic interference equipment which is maliciously operated by part of users can also influence the measurement accuracy of the electric meter box, the electric meter box is not practical to use, the existing electric meter box is only provided with one set of electric quantity measuring device, even if the electricity stealing behaviors of the user are found, the actual electric quantity stealing of the user is difficult to calculate, and the punishment difficulty is further brought.
In order to achieve the purpose, the invention provides the following technical scheme: an electric meter box with an anti-theft alarm comprises a box body, a rear cover plate, a connecting female head and a second groove,
the electromagnetic shielding box comprises a box body, wherein an electromagnetic shielding shell is fixed in the box body, first grooves are formed in the front side and the rear side of the electromagnetic shielding shell, a circuit board is fixed on one side of the interior of each first groove, which is close to the center of the electromagnetic shielding shell, an electric quantity measuring module, a power-on recording module and a data processing recording module are electrically fixed on the circuit board, a current transformer and a voltage transformer are respectively arranged on the upper side and the lower side of the circuit board, connecting columns are fixed on the outer sides of the current transformers and the outer sides of the voltage transformers, and the connecting;
the electromagnetic shielding case comprises a box body, a rear cover plate, a front cover plate, an electromagnetic shielding cover, a sealing convex edge, a conductive paste and a sealing cover, wherein the rear cover plate is fixed on the rear side of the box body through a bolt, the front side of the box body is fixed with the front cover plate through another group of bolts, the rear side of the front cover plate and the front side of the rear cover plate are both fixed with the electromagnetic shielding cover, one side of the electromagnetic shielding cover is provided with a connecting groove, one side of the electromagnetic shielding case, which is far away from;
the connecting female head is fixed on the electromagnetic shielding shell and is electrically connected with the power-on recording module, and a connecting male head is fixed on one side of the electromagnetic shielding shell and is inserted in and electrically connected with the connecting female head;
a second groove which is arranged at the lower side of the front end of the box body, and a live wire inlet terminal, a live wire outlet terminal, a zero line inlet terminal and a zero line outlet terminal are sequentially fixed in the second groove from left to right, the live wire inlet terminal penetrates through the box body and is arranged in the first groove at the rear side of the box body, a connecting terminal penetrates through the box body, meanwhile, two ends of the connecting terminal are respectively arranged in the two first grooves, a lead is fixed in the first grooves through a wire clamp, two ends of the lead at the rear side of the box body are respectively and electrically connected with the live wire inlet terminal and the connecting terminal, and the wire of box rear side passes current transformer and the voltage transformer of box rear side in proper order, the wire both ends of box front side respectively with connecting terminal and live wire terminal electric connection that goes out, and the wire of box front side passes current transformer and the voltage transformer of box front side in proper order.
Preferably, the bottom of the box body is provided with a through hole communicated with the second groove, and the through hole is arranged corresponding to the live wire inlet terminal, the live wire outlet terminal, the zero line inlet terminal and the zero line outlet terminal.
Preferably, the electromagnetic shielding shell and the electromagnetic shielding cover are made of conductive materials, and the electromagnetic shielding shell is electrically connected with the two electromagnetic shielding covers through conductive paste.
Preferably, certain gaps are reserved between the current transformer and the inner wall of the electromagnetic shielding shell and between the voltage transformer and the inner wall of the electromagnetic shielding shell.
Preferably, a control panel is fixed on the front side of the front cover plate, the front side of the control panel is electrically connected with a warning lamp, and the control panel is electrically connected with the data processing and recording module.
Preferably, every group connect female head and all be provided with two, and two connect female head and use the electromagnetic shield shell central line to be the symmetrical formula setting as the center.
Preferably, every group connect public head and all be provided with two, and two connect public heads and use the electromagnetic shield shell central line to be the symmetrical formula setting as the center, connect public first corresponding connection female head setting simultaneously.
Preferably, the upper end of the live wire outlet terminal penetrates through the box body and is arranged in a first groove in the front side of the box body, and the upper end of the zero line inlet terminal is electrically connected with the upper end of the zero line outlet terminal.
Preferably, a center line of a front side of the connection terminal coincides with a center line of the live wire inlet terminal.
Compared with the prior art, the invention has the beneficial effects that: the electric meter box with the anti-theft alarm is provided with a plurality of alarm units,
(1) the electromagnetic shielding case is provided with an electromagnetic shielding case, an electromagnetic shielding cover and conductive paste, a sealing convex edge on the electromagnetic shielding case extends into a sealing groove on the electromagnetic shielding cover, and the conductive paste is filled at the joint of the sealing convex edge and the sealing groove, so that the electromagnetic shielding case is electrically connected with the electromagnetic shielding cover, and the electromagnetic shielding case is grounded, so that the electromagnetic shielding case and the electromagnetic shielding cover are matched to absorb electromagnetic interference and convert the interference into current to be led into the ground, the influence of the electromagnetic interference on the measurement accuracy of the electric meter case is reduced, and the use effect of the electric meter case in a complex electromagnetic environment is improved;
(2) the electric meter box is provided with a female connecting head and a male connecting head, the male connecting head fixed on a front cover plate or a rear cover plate is inserted on the female connecting head, when the front cover plate or the rear cover plate needs to be opened, the male connecting head is separated from the female connecting head, so that the female connecting head and the male connecting head are disconnected, a channel recording module records information in time and sends the information to a warning lamp, and a toll collector in a power supply office can find that the electric meter box is detached privately in time, so that the electric meter box is more practical to use;
(3) be provided with connecting terminal, first recess has all been seted up to both sides around the electromagnetic shield shell, and the inside equal fixed mounting of every first recess has measuring component such as circuit board, make user's power consumption detected and the record by two sets of independent measuring equipment, when opening the front shroud, connecting terminal and live wire incoming wire terminal cooperation camouflage, make the personnel mistake of not knowing this ammeter case structure think that the live wire incoming wire terminal directly runs through inside the first recess that gets into the front side, consequently, the first recess to the rear side starts hidden effect, measuring component in the first recess of rear side carries out backup record to the power consumption, be convenient for compare after taking place to steal the electric action and judge and steal the electric quantity.
Drawings
FIG. 1 is a schematic cross-sectional front view of the present invention;
FIG. 2 is a schematic diagram of a right side view cross-sectional structure of the present invention;
FIG. 3 is a schematic rear view of the cross-sectional structure of the present invention;
FIG. 4 is a rear view of the front cover plate according to the present invention;
FIG. 5 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
fig. 6 is a schematic diagram of the work flow structure of the present invention.
In the figure: 1. the electric quantity measuring module comprises a box body, 2, an electromagnetic shielding shell, 3, a first groove, 4, a circuit board, 5, an electric quantity measuring module, 6, an electrifying recording module, 7, a data processing recording module, 8, a current transformer, 9, a voltage transformer, 10, a connecting column, 11, a stud, 12, a rear cover plate, 13, a bolt, 14, a front cover plate, 15, an electromagnetic shielding cover, 16, a connecting groove, 17, a sealing convex edge, 18, conductive paste, 19, a connecting female head, 20, a connecting male head, 21, a second groove, 22, a live wire incoming wire terminal, 23, a live wire outgoing wire terminal, 24, a zero wire incoming wire terminal, 25, a zero wire outgoing wire terminal, 26, a connecting terminal, 27, a wire clip, 28, a lead, 29, a control panel, 30, a warning lamp, 31 and a through hole.
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. 1-6, the present invention provides a technical solution: an electricity meter box with electricity stealing prevention alarm is disclosed, as shown in fig. 1, fig. 3 and fig. 6, an electromagnetic shielding shell 2 is fixed in a box body 1, first grooves 3 are respectively arranged at the front side and the rear side of the electromagnetic shielding shell 2, a through hole 31 communicated with a second groove 21 is arranged at the bottom of the box body 1, the through hole 31 is correspondingly arranged with a live wire inlet terminal 22, a live wire outlet terminal 23, a null wire inlet terminal 24 and a null wire outlet terminal 25, so that a live wire passes through the through hole 31 to be connected with the live wire inlet terminal 22 and the live wire outlet terminal 23, the null wire passes through the through hole 31 to be connected with the null wire inlet terminal 24 and the null wire outlet terminal 25, the electromagnetic shielding shell 2 and the electromagnetic shielding cover 15 are made of conductive materials, the electromagnetic shielding shell 2 is electrically connected with the two electromagnetic shielding covers 15 through a conductive paste 18, the electromagnetic shielding cover 15 and the electromagnetic shielding shell 2 are matched to play a, a circuit board 4 is fixed on one side of the interior of the first groove 3 close to the center of the electromagnetic shielding shell 2, an electric quantity measuring module 5, an electrifying recording module 6 and a data processing recording module 7 are electrically fixed on the circuit board 4, a current transformer 8 and a voltage transformer 9 are respectively arranged on the upper side and the lower side of the circuit board 4, a connecting column 10 is fixed on the outer side of the current transformer 8 and the outer side of the voltage transformer 9, a certain gap is reserved between the current transformer 8 and the voltage transformer 9 and the inner wall of the electromagnetic shielding shell 2, a lead 28 conveniently penetrates through the current transformer 8 and the voltage transformer 9, the connecting column 10 is fixed on the electromagnetic shielding shell 2 through a stud 11, a rear cover plate 12 is fixed on the rear side of the box body 1 through a bolt 13, a front cover plate 14 is fixed on the front side of the box body 1 through another group of bolts 13, a control panel, meanwhile, the control panel 29 is electrically connected with the data processing and recording module 7, and a toll collector of a power supply office timely judges whether the electric meter box is illegally disassembled through the warning lamp 30.
As shown in fig. 2, 4 and 5, an electromagnetic shielding cover 15 is fixed on both the rear side of the front cover plate 14 and the front side of the rear cover plate 12, and a connecting groove 16 is formed on one side of the electromagnetic shielding case 2, a sealing convex edge 17 is fixed on one side of the electromagnetic shielding case 2 away from the case 1, and the sealing convex edge 17 extends into the connecting groove 16, a conductive paste 18 is filled in the connecting groove 16, a connecting female 19 is fixed on the electromagnetic shielding case 2, and the connecting female 19 is electrically connected with the power-on recording module 6, two connecting female 19 are provided for each set, and the two connecting female 19 are symmetrically arranged with respect to the center line of the electromagnetic shielding case 2, two connecting male 20 are provided for each set, and the two connecting male 20 are symmetrically arranged with respect to the center line of the electromagnetic shielding case 2, and the electromagnetic shielding cover 15 is fixed on the electromagnetic shielding case 2 by a bolt 13, the male connecting head 20 is inserted into the female connecting head 19 to form an electrical connection, the male connecting head 20 is fixed on one side of the electromagnetic shielding shell 2, the male connecting head 20 is inserted into the female connecting head 19 and electrically connected with the female connecting head, the second groove 21 is formed in the lower side of the front end of the box body 1, a live wire inlet terminal 22, a live wire outlet terminal 23, a null wire inlet terminal 24 and a null wire outlet terminal 25 are sequentially fixed in the second groove 21 from left to right, the upper end of the live wire outlet terminal 23 penetrates through the box body 1 and is arranged in the first groove 3 in the front side of the box body 1, the upper end of the null wire inlet terminal 24 is electrically connected with the upper end of the null wire outlet terminal 25, so that a lead 28 in the first groove 3 in the front side is electrically connected with the live wire terminal 23, the live wire inlet terminal 22 penetrates through the box body 1 and is arranged in the first groove 3 in the rear side of the box body 1, a connecting terminal 26 penetrates through the box body 1, and two ends of the connecting, the central line of connecting terminal 26 front side and the coincidence of the central line of live wire incoming wire terminal 22, pretend through connecting terminal 26 and the cooperation of live wire incoming wire terminal 22, make the personnel of not knowing this ammeter case structure think that live wire incoming wire terminal 22 directly runs through inside the first recess 3 that gets into the front side, first recess 3 is inside to be fixed with wire 28 through press the fastener 27, the wire 28 both ends of box 1 rear side respectively with live wire incoming wire terminal 22 and connecting terminal 26 electric connection, and the wire 28 of box 1 rear side passes current transformer 8 and the voltage transformer 9 of box 1 rear side in proper order, the wire 28 both ends of box 1 front side respectively with connecting terminal 26 and live wire outgoing wire terminal 23 electric connection, and the wire 28 of box 1 front side passes current transformer 8 and the voltage transformer 9 of box 1 front side in proper order.
The working principle is as follows: when the ammeter box with the electricity stealing prevention alarm is used, firstly, a live wire incoming wire and live wire incoming wire terminal 22, a live wire outgoing wire and live wire outgoing wire terminal 23, a zero wire incoming wire and zero wire incoming wire terminal 24 and a zero wire outgoing wire and zero wire outgoing wire terminal 25 are correspondingly connected, a current transformer 8 and a voltage transformer 9 are fixed on the upper side of the electromagnetic shielding shell 2 through a connecting column 10 and a stud 11 in a matching way, a lead 28 in a first groove 3 on the front side sequentially penetrates through the current transformer 8 and the voltage transformer 9 on the front side, meanwhile, two ends of the lead 28 are respectively electrically connected with a connecting terminal 26 and a live wire outgoing wire terminal 23, the lead 28 is fixedly fastened through a wire clamp 27, the lead 28 in the first groove 3 on the rear side sequentially penetrates through the current transformer 8 and the voltage transformer 9 on the rear side, and two ends of the lead 28 are respectively electrically connected with the live wire incoming wire terminal 22, the lead 28 is fixed and fastened through another wire clamp 27, the bolt 13 is rotated to fix the rear cover plate 12 at the rear side of the box body 1, at this time, the sealing convex edge 17 at the rear side of the electromagnetic shielding shell 2 extends into the connecting groove 16 on the electromagnetic shielding shell 15 at the rear side, the conductive paste 18 filled in the connecting groove 16 makes the electrical connection between the electromagnetic shielding shell 15 at the rear side and the electromagnetic shielding shell 2 more stable, similarly, the front cover plate 14 is fixed and fastened through another group of bolts 13, so that the electromagnetic shielding shell 15 and the electromagnetic shielding shell 2 play a role of sealing two first grooves 3, because the electromagnetic shielding shell 2 is grounded, the electromagnetic shielding shell 2 and the electromagnetic shielding shell 15 are convenient to cooperate to shield electromagnetic interference and convert the electromagnetic interference into current to be led into the ground, the electromagnetic influence of the electric meter box from the outside is reduced, the adaptation effect of the electric meter is greatly improved, the male plug 20 is connected to the female meter box 19 while the front cover plate 14, when the front cover plate 14 or the rear cover plate 12 is disassembled again, the connecting male head 20 is inevitably disconnected with the corresponding connecting female head 19, the power-on recording module 6 records the power-off information and controls the warning lamp 30 to light up, so that the toll collector of the power supply bureau can find the illegal disassembly of the electric meter box in time during meter reading, the use is more practical, due to the special structure of the connecting terminal 26 and the live wire inlet terminal 22, the personnel who can not know the structure of the electric meter box can be misled, the personnel can misunderstand that the live wire inlet terminal 22 penetrates through the box body 1 and is directly arranged in the first groove 3 at the front side, the hidden camouflage effect of the first groove 3 at the rear side is realized, the current transformer 8 and the voltage transformer 9 in the first groove 3 at the front side are used for reducing the current and the voltage in an equal ratio and sending the current and the voltage to the electric quantity measuring module 5, and then the measured, similarly, an independent second set of electricity consumption measuring equipment is arranged in the first groove 3 on the rear side, after electricity stealing behaviors are found, electricity consumption data stored in the two sets of electricity consumption measuring equipment are used for comparison, electricity stealing quantity can be judged quickly and efficiently, illegal personnel can be punished conveniently, and all work is finished.
The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for simplicity of description only and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operative in a particular orientation, and are not to be considered limiting of the claimed invention.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides an ammeter case with theftproof electricity alarm, includes box (1), back shroud (12), connects female head (19) and second recess (21), its characterized in that:
the electromagnetic shielding case comprises a case body (1), an electromagnetic shielding case (2) is fixed inside the case body (1), first grooves (3) are formed in the front side and the rear side of the electromagnetic shielding case (2), a circuit board (4) is fixed on one side, close to the center of the electromagnetic shielding case (2), inside the first grooves (3), an electric quantity measuring module (5), an electrifying recording module (6) and a data processing recording module (7) are electrically fixed on the circuit board (4), a current transformer (8) and a voltage transformer (9) are respectively arranged on the upper side and the lower side of the circuit board (4), connecting columns (10) are fixed on the outer sides of the current transformer (8) and the voltage transformer (9), and the connecting columns (10) are fixed on the electromagnetic shielding case (2) through studs (11);
the electromagnetic shielding case comprises a rear cover plate (12), wherein the rear cover plate (12) is fixed on the rear side of the case body (1) through a bolt (13), a front cover plate (14) is fixed on the front side of the case body (1) through another group of bolts (13), electromagnetic shielding covers (15) are fixed on the rear side of the front cover plate (14) and the front side of the rear cover plate (12), a connecting groove (16) is formed in one side of each electromagnetic shielding cover (15), a sealing convex edge (17) is fixed on one side, far away from the case body (1), of the electromagnetic shielding case (2), the sealing convex edge (17) extends into the connecting groove (16), and conductive paste (18) is filled in the connecting groove (16);
the electromagnetic shielding shell comprises a connecting female head (19), the connecting female head (19) is fixed on the electromagnetic shielding shell (2), the connecting female head (19) is electrically connected with the power-on recording module (6), a connecting male head (20) is fixed on one side of the electromagnetic shielding shell (2), and the connecting male head (20) is inserted into the connecting female head (19) and electrically connected with the connecting female head;
second recess (21), second recess (21) are seted up at box (1) front end downside, and second recess (21) is inside from left to right be fixed with live wire incoming terminal (22), live wire terminal (23), zero line incoming terminal (24) and zero line terminal (25) in proper order, live wire incoming terminal (22) run through box (1) and set up inside first recess (3) at box (1) rear side, and box (1) is inside to run through and to have connecting terminal (26), and connecting terminal (26) both ends set up respectively inside two first recesses (3) simultaneously, first recess (3) are inside to be fixed with wire (28) through voltage clamp (27), wire (28) both ends of box (1) rear side respectively with live wire incoming terminal (22) and connecting terminal (26) electric connection, and wire (28) of box (1) rear side pass current transformer (8) and voltage transformer (9) of box (1) rear side in proper order ) The two ends of a lead (28) on the front side of the box body (1) are respectively electrically connected with the connecting terminal (26) and the live wire outlet terminal (23), and the lead (28) on the front side of the box body (1) sequentially penetrates through the current transformer (8) and the voltage transformer (9) on the front side of the box body (1).
2. An electricity meter box with burglar alarm according to claim 1, characterized in that: the bottom of the box body (1) is provided with a through hole (31) communicated with the second groove (21), and the through hole (31) is arranged corresponding to the live wire inlet terminal (22), the live wire outlet terminal (23), the zero wire inlet terminal (24) and the zero wire outlet terminal (25).
3. An electricity meter box with burglar alarm according to claim 1, characterized in that: the electromagnetic shielding shell (2) and the electromagnetic shielding covers (15) are made of conductive materials, and the electromagnetic shielding shell (2) is electrically connected with the two electromagnetic shielding covers (15) through conductive paste (18).
4. An electricity meter box with burglar alarm according to claim 1, characterized in that: and certain gaps are reserved between the current transformer (8) and the voltage transformer (9) and the inner wall of the electromagnetic shielding shell (2).
5. An electricity meter box with burglar alarm according to claim 1, characterized in that: the front side of the front cover plate (14) is fixed with a control panel (29), the front side of the control panel (29) is electrically connected with a warning lamp (30), and meanwhile, the control panel (29) is electrically connected with the data processing and recording module (7).
6. An electricity meter box with burglar alarm according to claim 1, characterized in that: every group connect female (19) and all be provided with two, and two connect female (19) and use electromagnetic shield shell (2) central line to be symmetrical formula setting as the center.
7. An electricity meter box with burglar alarm according to claim 1, characterized in that: every group connect public head (20) and all be provided with two, and two connect public head (20) and use electromagnetic shield shell (2) central line to be symmetrical formula setting as the center, connect public head (20) simultaneously and correspond and connect female head (19) setting.
8. An electricity meter box with burglar alarm according to claim 1, characterized in that: live wire terminal (23) upper end runs through inside box (1) sets up first recess (3) at box (1) front side, zero line incoming line terminal (24) upper end and zero line terminal (25) upper end electric connection.
9. An electricity meter box with burglar alarm according to claim 1, characterized in that: the center line of the front side of the connecting terminal (26) is coincident with the center line of the live wire inlet terminal (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011432989.5A CN112578171B (en) | 2020-12-10 | 2020-12-10 | Ammeter case with theftproof electricity alarm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011432989.5A CN112578171B (en) | 2020-12-10 | 2020-12-10 | Ammeter case with theftproof electricity alarm |
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| CN112578171B CN112578171B (en) | 2022-07-12 |
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| CN112578171B (en) | 2022-07-12 |
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