CN112834796A - Electric energy meter capable of preventing strong magnetic interference - Google Patents
Electric energy meter capable of preventing strong magnetic interference Download PDFInfo
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- CN112834796A CN112834796A CN202110308915.9A CN202110308915A CN112834796A CN 112834796 A CN112834796 A CN 112834796A CN 202110308915 A CN202110308915 A CN 202110308915A CN 112834796 A CN112834796 A CN 112834796A
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 107
- 230000005292 diamagnetic effect Effects 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 9
- 210000001503 joint Anatomy 0.000 claims description 5
- 230000005389 magnetism Effects 0.000 abstract description 12
- 238000005259 measurement Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 14
- 230000004907 flux Effects 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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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
- G01R11/04—Housings; Supporting racks; Arrangements of terminals
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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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Abstract
The application discloses prevent electric energy meter of strong magnetic interference includes: an ammeter and an ammeter box; the ammeter comprises a top meter shell, a bottom meter shell, a first magnetic field shielding plate, a second magnetic field shielding plate, an ammeter core and a plurality of diamagnetic blocks; the top watchcase is connected with the bottom watchcase, and a mounting cavity is formed inside the top watchcase and the bottom watchcase; the first magnetic field shielding plate is arranged on the inner shell wall of the bottom watchcase; the second magnetic field shielding plate is arranged on the inner shell wall of the top watchcase; the ammeter core is arranged in the mounting cavity; the plurality of anti-magnetic blocks are uniformly distributed in the mounting cavity around the electric meter core; the ammeter case is used for installing the ammeter. Through set up first magnetic field shield plate, second magnetic field shield plate and diamagnetic piece in the ammeter, form a complete diamagnetic protection zone territory, can strengthen whole diamagnetic performance to the internal plant of protection ammeter does not receive the influence of external strong magnetism, thereby has avoided electric energy meter to receive the interference of plus strong magnetic field, has ensured the measurement accuracy of electric energy meter, makes the anti-theft ammeter case can reach the anti-theft function.
Description
Technical Field
The application relates to the technical field of electric energy meters, in particular to an electric energy meter capable of preventing strong magnetic interference.
Background
In an electric power system, secondary equipment such as some metering devices have high sensitivity to electromagnetic interference, and even some electromagnetic radiation with small energy can generate great interference to the equipment, so that the equipment is damaged, and the normal operation of the whole electric power system is influenced.
The existing electric energy meter has no anti-magnetic ability, and part of lawless persons utilize high-tech intelligent high-power high-frequency radiation technology to interfere the digital power electric energy meter and the internal electric energy metering chip, so that the electric energy meter can not work normally, and then steal electricity, therefore, an electric energy box with anti-magnetic ability appears on the market, and then the electric energy meter is arranged in an electric energy box to resist magnetism, for example, the electric energy box with anti-strong-magnetic electricity stealing shield disclosed by the Chinese invention patent with the publication number of CN101216504A adopts a magnetic field shielding plate arranged between the box bottom of the electric energy box and the electric energy meter bottom, and provides a magnetic flux path for an external strong magnetic field meter by utilizing the magnetic field shielding plate, so that the strong magnetic field applied by an electricity thief outside the box is blocked by the magnetic field shielding plate, thereby avoiding the electric energy from being interfered by the external strong magnetic field, and ensuring the metering accuracy of the electric energy meter, make anti-theft ammeter case can reach anti-theft function, but use this type of ammeter case can only follow the outside to carry out antimagnetic to the electric energy meter, the electric energy meter itself does not possess antimagnetic ability, and it is poor not only to prevent magnetic effect, when the ammeter case is destroyed moreover, the electric energy meter still can be disturbed by strong magnetism, makes the electric energy meter normally work, then steals the electric action.
Disclosure of Invention
In view of this, the present application provides an electric energy meter for preventing strong magnetic interference, which is used to solve the problem that the existing electric energy meter has a poor antimagnetic effect.
In order to achieve the above technical object, the present application provides an electric energy meter capable of preventing strong magnetic interference, including: an ammeter and an ammeter box;
the ammeter comprises a top meter shell, a bottom meter shell, a first magnetic field shielding plate, a second magnetic field shielding plate, an ammeter core and a plurality of diamagnetic blocks;
the top watchcase is connected with the bottom watchcase, and a mounting cavity is formed inside the top watchcase and the bottom watchcase;
the first magnetic field shielding plate is arranged on the inner shell wall of the bottom watchcase;
the second magnetic field shielding plate is arranged on the inner shell wall of the top watchcase;
the ammeter core is arranged in the mounting cavity;
the plurality of anti-magnetic blocks are uniformly distributed in the installation cavity around the electric meter core;
the ammeter box is used for installing an ammeter.
Preferably, the electric meter box comprises a box body and a third magnetic field shielding plate;
the box body is provided with an inner cavity;
the electric meter is arranged in the inner cavity;
the third magnetic field shielding plate is arranged on the side wall of the inner cavity.
Preferably, the electric meter box further comprises a magnetic force detector;
the magnetic force detector is arranged in the inner cavity.
Preferably, the electric meter box further comprises a box door, a first observation window and a second observation window;
the box door is arranged on the box body and used for opening and closing the inner cavity;
the first observation window is arranged on the box door and corresponds to the installation position of the ammeter;
the second observation window is arranged on the box door and corresponds to the position of the magnetic detector.
Preferably, the back of the bottom watchcase is provided with an installation hanging block and a plurality of clamping blocks;
an ammeter station, a hanging groove and a plurality of clamping grooves are arranged in the inner cavity;
the electric meter station is used for installing the electric meter;
the hanging groove is arranged in the ammeter station and is used for being in butt joint with the mounting hanging block;
and the clamping grooves are arranged in the electric meter station and used for being in butt joint with the clamping blocks.
Preferably, the electric meter box further comprises a through wire protection tube;
the box body is provided with a through wire hole;
the through wire protection tube is connected with the through wire hole.
Preferably, a three-phase terminal button box is arranged in the mounting cavity;
the through hole comprises a first through hole and a second through hole;
the wire connecting protection pipe comprises a first wire connecting protection pipe and a second wire connecting protection pipe;
the first through wire hole is aligned with the ammeter core;
the second through hole is aligned with the three-phase terminal button box;
the first wire passing protection pipe and the second wire passing protection pipe are respectively connected with the first wire passing hole and the second wire passing hole.
Preferably, the top case and the bottom case are connected by a snap and a screw.
Preferably, the top watchcase is provided with an access hole, a protective cover and an indicator light;
the protective cover covers the access hole;
the indicator light is used for indicating whether the inside of the electric meter is in fault or not.
Preferably, the diamagnetic blocks specifically comprise two.
According to the above technical scheme, the application provides an electric energy meter for preventing strong magnetic interference, include: an ammeter and an ammeter box; the ammeter comprises a top meter shell, a bottom meter shell, a first magnetic field shielding plate, a second magnetic field shielding plate, an ammeter core and a plurality of diamagnetic blocks; the top watchcase is connected with the bottom watchcase, and a mounting cavity is formed inside the top watchcase and the bottom watchcase; the first magnetic field shielding plate is arranged on the inner shell wall of the bottom watchcase; the second magnetic field shielding plate is arranged on the inner shell wall of the top watchcase; the ammeter core is arranged in the mounting cavity; the plurality of anti-magnetic blocks are uniformly distributed in the installation cavity around the electric meter core; the ammeter box is used for installing an ammeter. The first magnetic field shielding plate, the second magnetic field shielding plate and the diamagnetic blocks are arranged in the electric meter, and the electric meter core is arranged between the diamagnetic blocks, so that the diamagnetic performance of the electric meter core is enhanced, and the electric meter core is prevented from being interfered by surrounding strong magnetism; the first magnetic field shielding plate and the second magnetic field shielding plate are arranged on the inner side of the electric meter and form a complete diamagnetic protection area, so that the overall diamagnetism can be enhanced, internal equipment of the electric meter is protected from being influenced by external strong magnetism, and the electric meter cannot normally work under the influence of the strong magnetism; the electromagnetic shielding principle can be further utilized, a magnetic flux path is provided for an external strong magnetic field through the magnetic conductive material, the strong magnetic field applied by an electricity stealing person outside the box is separated by the magnetic field shielding plate, so that the electric energy meter is prevented from being interfered by the external strong magnetic field, the metering accuracy of the electric energy meter is ensured, and the electricity stealing prevention meter box can achieve the electricity stealing prevention function.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic perspective view of an electricity meter according to an embodiment of the present disclosure;
FIG. 2 is a schematic front perspective view of a bottom case according to an embodiment of the present invention;
FIG. 3 is a schematic perspective view of the back view of the bottom case of the embodiment of the present invention;
FIG. 4 is a schematic perspective view of a back perspective view of a top case of an embodiment of the present invention;
FIG. 5 is a schematic diagram of an internal structure of an electricity meter box in an embodiment of the invention;
fig. 6 is a schematic diagram of an external structure of an electricity meter box in an embodiment of the invention.
In the figure: 1. a bottom case; 2. a top watchcase; 3. an electric meter box; 4. a second threaded bore post; 5. a debug button; 6. an ammeter display screen; 7. a protective cover; 8. fixing the threaded hole; 9. a three-phase terminal box; 10. an indicator light; 11. an input end; 12. installing a threaded hole; 13. a rectangular groove; 14. a second magnetic field shielding plate; 15. a clamping block; 16. an access hole; 17. a first magnetic field shielding plate; 18. an anti-magnetic block; 19. an output connector; 20. an ammeter core; 21. an input connector; 22. an output end; 23. a clamping groove; 24. a first threaded bore post; 25. mounting a hanging block; 26. a clamping block; 27. a third magnetic field shielding plate; 28. hanging a groove; 29. an ammeter station; 30. a card slot; 31. a magnetic force detector; 32. a first wire connecting protection tube; 33. a second through hole; 34. a second wire protection tube; 35. a first through hole; 36. a box door; 37. a first observation window; 38. and a second observation window.
Detailed Description
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are some, but not all embodiments of the present application. 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 scope of protection claimed herein.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The embodiment of the application discloses prevent electric energy meter of strong magnetic interference.
Referring to fig. 1 to fig. 2, an electric energy meter for preventing strong magnetic interference according to an embodiment of the present application includes: an ammeter and ammeter box 3; the ammeter comprises a top meter shell 2, a bottom meter shell 1, a first magnetic field shielding plate 17, a second magnetic field shielding plate 27, an ammeter core 20 and a plurality of diamagnetic blocks 18; the top watchcase 2 is connected with the bottom watchcase 1, and a mounting cavity is formed inside the top watchcase and the bottom watchcase; first magnetic field shielding plate 17 is mounted on the inner wall of bottom case 1; second magnetic field shielding plate 18 is mounted on the inner wall of top case 2; the ammeter core 20 is arranged in the mounting cavity; the plurality of anti-magnetic blocks 18 are uniformly distributed in the mounting cavity around the electric meter core 20; the electric meter box 20 is used for mounting an electric meter.
Specifically, the first magnetic field shielding plate 17 can enhance the overall diamagnetic performance of the bottom case 1, thereby protecting the internal devices of the bottom case 1 from the influence of strong external magnetism; the first magnetic field shield 17 may be arranged on the circumferential inner side wall of the bottom case 1. The second magnetic field shielding plate 14 is arranged on the inner side of the top watchcase 2, so that the overall diamagnetic performance of the top watchcase 2 can be enhanced, and a complete diamagnetic protection area is formed with the bottom watchcase 1, so that the diamagnetic performance of the electric energy meter can be enhanced, and the electric energy meter can be prevented from being influenced by strong magnetism and not working normally. Meanwhile, the anti-magnetic block 18 can enhance the anti-magnetic capability of the ammeter core 20 and prevent the ammeter core 20 from being interfered by surrounding strong magnetism.
The above is the first embodiment provided in the present application, and the following is the second embodiment provided in the present application, please refer to fig. 1 to 6 specifically.
An electric energy meter preventing strong magnetic interference, comprising: an ammeter and ammeter box 3; the ammeter comprises a top meter shell 2, a bottom meter shell 1, a first magnetic field shielding plate 17, a second magnetic field shielding plate 27, an ammeter core 20 and a plurality of diamagnetic blocks 18; the top watchcase 2 is connected with the bottom watchcase 1, and a mounting cavity is formed inside the top watchcase and the bottom watchcase; first magnetic field shielding plate 17 is mounted on the inner wall of bottom case 1; second magnetic field shielding plate 18 is mounted on the inner wall of top case 2; the ammeter core 20 is arranged in the mounting cavity; the plurality of anti-magnetic blocks 18 are uniformly distributed in the mounting cavity around the electric meter core 20; the electric meter box 20 is used for mounting an electric meter.
Further, the electric meter box 3 includes a box body and a third magnetic field shielding plate 27; the box body is provided with an inner cavity; the electric meter is arranged in the inner cavity; the third magnetic field shielding plate 27 is mounted to a side wall of the inner cavity.
Specifically, the third magnetic shielding plate 27 is installed inside the electric meter box 3 to enhance the magnetic resistance of the electric meter box 3; utilize the electromagnetic shielding principle with first magnetic field shield panel 17, second magnetic field shield panel 27 three, provide a magnetic flux route for plus high-intensity magnetic field through magnetic materials, let the strong magnetic field that steal the electricity person applyed outside the case by the separation of magnetic field shield panel to avoided electric energy meter to receive the interference of plus high-intensity magnetic field, ensured the measurement accuracy of electric energy meter, made the thief-proof ammeter case can reach the thief-proof function.
Further, the electric meter box 3 further comprises a magnetic force detector 31; a magnetometric detector 31 is mounted within the inner cavity. The magnetic force detection device is used for detecting the magnetic force value of the whole electric energy meter device.
Further, the electric meter box 3 further includes a box door 36, a first observation window 37 and a second observation window 38; the box door 36 is arranged on the box body and used for opening and closing the inner cavity; the first observation window 37 is arranged on the box door 36 and corresponds to the installation position of the ammeter; the second observation window 38 is disposed on the door 36 and corresponds to the position of the magnetometric detector 31.
Specifically, in the present embodiment, four electricity meters may be installed in the electricity meter box 3, and four first observation windows 37 are provided correspondingly; the first observation window 37 and the second observation window 38 both use transparent tempered glass. Whether the electric meter installed inside is normally operated or not can be observed through the first observation window 37, and the ambient magnetic force value detected and displayed by the magnetic force detector 31 can be observed through the second observation window 38.
Further, the back of the bottom watchcase 1 is provided with an installation hanging block 25 and a plurality of clamping blocks 26; an ammeter station, a hanging groove 28 and a plurality of clamping grooves 30 are arranged in the inner cavity; the electric meter station 29 is used for installing an electric meter; the hanging groove 28 is arranged in an ammeter station 29 and is used for being in butt joint with the mounting hanging block 25; the plurality of catching grooves 30 are disposed in the hanging groove 28 for interfacing with the plurality of catching blocks 26.
Particularly, in this embodiment, the number of the fixture blocks 26 and the card slots 30 is four, two mounting threaded holes 12 are further formed in the back of the bottom case 1, four groups of meter stations 29 are fixedly mounted inside the meter case 3, the specification of each meter station 29 is matched with the specification of the bottom case 1, sixteen card slots 30 are formed inside the meter case 3, the sixteen card slots 30 are equally divided into four groups, the specification of each card slot 30 is matched with the specification of the fixture block 26, four hanging grooves 28 are formed inside the meter case 3, and the specification of each hanging groove 28 is matched with the specification of the mounting hanging block 25. In this embodiment, the assembled bottom case 1 of the electric meter can be installed inside the electric meter station 29, the installation hanging block 25 is hung inside the hanging groove 28, and the installation clamping block 26 is clamped inside the installation clamping groove 30, so that the electric energy meter is installed inside the electric meter box 3. And the ammeter is fixed through the mounting threaded hole 12 after mounting.
Further, the electric meter box 3 further comprises a through wire protection tube; the box body is provided with a through hole; the through wire protection tube is connected with the through wire hole.
Specifically, a three-phase terminal button box 9 is arranged in the mounting cavity; an output end 22 is fixedly installed at the output end of the three-phase terminal button box 9, and a plurality of input ends 11 are fixedly installed at the input end of the three-phase terminal button box 9; an input connector 21 is fixedly installed at the input end of the electric meter core 20, and an output connector 19 is fixedly installed at the output end of the electric meter core 20; the through hole comprises a first through hole 35 and a second through hole 33; the first through hole 35 is arranged on the left side wall and the right side wall of the electric meter box 3; the second through hole 33 is arranged at the bottom of the electric meter box 3; the wire connecting protection tube comprises a first wire connecting protection tube 32 and a second wire connecting protection tube 34; the first through hole 35 is used for connecting the wires connected with the input connector 21 and the output connector 19 of the ammeter core 20; the second through hole 33 is used for connecting the wires connected with the three-phase terminal button box 9; the first wire through protection pipe 32 and the second wire through protection pipe 34 are connected with the first wire through hole 35 and the second wire through hole 33 respectively.
Further, top case 2 and bottom case 1 are connected by snap and screw.
Specifically, the inside fixed mounting of bottom watchcase 1 has two first screw hole posts 24, the inside fixed mounting of top watchcase 2 has two second screw hole posts 4, the position of two first screw hole posts 24 is corresponding with the position of two second screw hole posts 4, two joint grooves 23 have been seted up to the inside of bottom watchcase 1, the inside fixed mounting of top watchcase 2 has two joint pieces 15, the position of two joint pieces 15 is corresponding with the position of two joint grooves 23, the specification and size looks adaptation of joint piece 15 and the specification and size of joint groove 23.
In this embodiment, two clamping blocks 15 can be inserted into two clamping grooves 23, two first threaded holes 24 and two second threaded holes 4 are aligned and fastened by screws, and thus the top case 2 and the bottom case 1 are assembled.
Furthermore, the top watchcase 2 is provided with an access hole 16, a protective cover 7 and an indicator light 10; the protective cover 7 is covered on the access hole 16; the indicator lamp 10 is used to indicate whether there is a fault inside the electricity meter.
Specifically, an ammeter display screen 6 and a debugging button 5 are further arranged on the top meter shell 2, and the ammeter display screen 6 is arranged above the protective cover 7; fixed threaded hole 8 has all been seted up to the inside of top watchcase 2 and visor 7, and fixed threaded hole 8's position is corresponding, and access hole 16 has been seted up to the inside of top watchcase 2, and access hole 16's specification and dimension is less than the specification and dimension of visor 7.
In this embodiment, the protective cover 7 can be mounted on the front surface of the top case 2 by screwing screws into the fixing screw holes 8.
Further, in the present embodiment, the diamagnetic blocks 18 specifically include two, and are disposed on two sides of the electric meter core 20.
The working principle and the using process of the invention can be as follows: firstly, the electric meter is assembled, the bottom meter shell 1 and the top meter shell 2 are assembled together to form a complete electric meter, then the assembled electric meter is arranged in the electric meter box 3, the diamagnetic block 18 is arranged in the bottom meter shell 1 of the electric meter, the electric meter core 20 is arranged between the two diamagnetic blocks 18, the diamagnetic performance of the electric meter core 20 can be enhanced, the electric meter core 20 is prevented from being interfered by surrounding strong magnetism, the overall diamagnetic performance of the bottom meter shell 1 can be enhanced by arranging the first magnetic shielding plate 17 on the inner side of the bottom meter shell 1 of the electric meter, so that the internal equipment of the bottom meter shell 1 is protected from the influence of the external strong magnetism, in addition, the second magnetic shielding plate 14 is arranged on the inner side of the top meter shell 2, so that the overall diamagnetic performance of the top meter shell 2 can be enhanced, and a complete diamagnetic protection area is formed with the bottom meter shell 1, so that the diamagnetic performance of the electric meter can, the influence of strong magnetism on the normal work of the ammeter is prevented; can strengthen ammeter case 3's diamagnetic ability through the internally mounted third magnetic field shield panel 27 at ammeter case 3, adopt the magnetic field shield panel of magnetic material in ammeter case 3's internally mounted area, utilize the electromagnetic shielding principle, provide a magnetic flux route for plus strong magnetic field through magnetic material, let the strong magnetic field that the electricity thief applyed outside the case by the separation of magnetic field shield panel, thereby avoided the electric energy meter to receive the interference of plus strong magnetic field, the measurement of having ensured the ammeter is accurate, make the thief-proof ammeter case can reach the thief-proof function.
Although the present invention has been described in detail with reference to examples, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention.
Claims (10)
1. The utility model provides a prevent electric energy meter of strong magnetic interference which characterized in that includes: an ammeter and an ammeter box;
the ammeter comprises a top meter shell, a bottom meter shell, a first magnetic field shielding plate, a second magnetic field shielding plate, an ammeter core and a plurality of diamagnetic blocks;
the top watchcase is connected with the bottom watchcase, and a mounting cavity is formed inside the top watchcase and the bottom watchcase;
the first magnetic field shielding plate is arranged on the inner shell wall of the bottom watchcase;
the second magnetic field shielding plate is arranged on the inner shell wall of the top watchcase;
the ammeter core is arranged in the mounting cavity;
the plurality of anti-magnetic blocks are uniformly distributed in the installation cavity around the electric meter core;
the ammeter box is used for installing an ammeter.
2. The electric energy meter capable of preventing strong magnetic interference according to claim 1, wherein the electric meter box comprises a box body and a third magnetic field shielding plate;
the box body is provided with an inner cavity;
the electric meter is arranged in the inner cavity;
the third magnetic field shielding plate is arranged on the side wall of the inner cavity.
3. The electric energy meter capable of preventing strong magnetic interference according to claim 2, wherein the electric meter box further comprises a magnetic force detector;
the magnetic force detector is arranged in the inner cavity.
4. The electric energy meter capable of preventing strong magnetic interference according to claim 3, wherein the electric meter box further comprises a box door, a first observation window and a second observation window;
the box door is arranged on the box body and used for opening and closing the inner cavity;
the first observation window is arranged on the box door and corresponds to the installation position of the ammeter;
the second observation window is arranged on the box door and corresponds to the installation position of the magnetic detector.
5. The electric energy meter capable of preventing strong magnetic interference according to claim 2, wherein the back of the bottom meter case is provided with a mounting hanging block and a plurality of clamping blocks;
an ammeter station, a hanging groove and a plurality of clamping grooves are arranged in the inner cavity;
the electric meter station is used for installing the electric meter;
the hanging groove is arranged in the ammeter station and is used for being in butt joint with the mounting hanging block;
and the clamping grooves are arranged in the electric meter station and used for being in butt joint with the clamping blocks.
6. The electric energy meter capable of preventing strong magnetic interference according to claim 2, wherein the electric meter box further comprises a through wire protection tube;
the box body is provided with a through wire hole;
the through wire protection tube is connected with the through wire hole.
7. The electric energy meter capable of preventing strong magnetic interference according to claim 6, wherein the through hole comprises a first through hole and a second through hole;
the wire connecting protection pipe comprises a first wire connecting protection pipe and a second wire connecting protection pipe;
the first through hole is formed in the side wall of the box body;
the second through hole is formed in the bottom of the box body;
the first wire passing protection pipe and the second wire passing protection pipe are respectively connected with the first wire passing hole and the second wire passing hole.
8. The electric energy meter for preventing strong magnetic interference according to claim 1, wherein the top case and the bottom case are connected by a screw thread.
9. The electric energy meter capable of preventing strong magnetic interference according to claim 1, wherein the top meter case is provided with an access hole, a protective cover and an indicator light;
the protective cover is arranged on the access hole in a covering manner;
the indicator light is used for indicating whether the inside of the electric meter is in fault or not.
10. The electric energy meter capable of preventing strong magnetic interference according to claim 1, wherein the diamagnetic blocks are specifically two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110308915.9A CN112834796A (en) | 2021-03-23 | 2021-03-23 | Electric energy meter capable of preventing strong magnetic interference |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110308915.9A CN112834796A (en) | 2021-03-23 | 2021-03-23 | Electric energy meter capable of preventing strong magnetic interference |
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| CN112834796A true CN112834796A (en) | 2021-05-25 |
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| CN202110308915.9A Pending CN112834796A (en) | 2021-03-23 | 2021-03-23 | Electric energy meter capable of preventing strong magnetic interference |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113589010A (en) * | 2021-07-30 | 2021-11-02 | 万安裕高电子科技有限公司 | Intelligent ammeter capable of preventing strong magnetic interference |
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Application publication date: 20210525 |