CN210376463U - Digital current sensor with strong anti-interference capability - Google Patents
Digital current sensor with strong anti-interference capability Download PDFInfo
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- CN210376463U CN210376463U CN201920697121.4U CN201920697121U CN210376463U CN 210376463 U CN210376463 U CN 210376463U CN 201920697121 U CN201920697121 U CN 201920697121U CN 210376463 U CN210376463 U CN 210376463U
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Abstract
The utility model relates to a digital current sensor that interference killing feature is strong, including main part and mount pad, still include shield assembly, shield assembly includes two safety covers and two fixed establishment, fixed establishment includes pull rod, movable plate, two fixed subassemblies and two fixed blocks, fixed subassembly includes dead lever, spacing ring and spring, and this digital current sensor that interference killing feature is strong can carry out shielding work to the main part through shield assembly, avoids external magnetic field too strong, influences current sensor's detection precision, has promoted anti-jamming ability, compares with current shield assembly, and this shield assembly installation is convenient, has improved the practicality of equipment.
Description
Technical Field
The utility model relates to a current sensor field, in particular to digital current sensor that interference killing feature is strong.
Background
The current sensor is a detection device which can sense the information of the current to be detected and convert the sensed information into an electric signal meeting certain standards or other information in required forms according to a certain rule for output so as to meet the requirements of information transmission, processing, storage, display, recording, control and the like. The current sensor is also called a magnetic sensor, can be used for household appliances, smart grids, electric vehicles, wind power generation and the like, and is used for a plurality of magnetic sensors in our life, such as a computer hard disk, a compass, household appliances and the like.
When the existing current sensor works, the existing current sensor is easily interfered by an external electromagnetic field, so that the detection effect of the current sensor is influenced, and the detection precision of the current sensor is reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to overcome the defects of the prior art, a digital current sensor with strong interference resistance is provided.
The utility model provides a technical scheme that its technical problem adopted is: a digital current sensor with strong anti-interference capability comprises a main body and a mounting seat, wherein the main body is fixed above the mounting seat, a through hole is formed in the main body, the digital current sensor further comprises a shielding device, the shielding device comprises two protective covers and two fixing mechanisms, a small hole is formed in one side of each protective cover and matched with the through hole, the small hole and the through hole are coaxially arranged, the other sides of the two protective covers are mutually abutted, an opening is formed in the lower portion of each protective cover and matched with the main body, the two fixing mechanisms are respectively arranged on the two sides, perpendicular to the small hole, of each protective cover, and conductive paint is coated on each protective cover;
the fixing mechanism comprises a pull rod, a moving plate, two fixing assemblies and two fixing blocks, the two fixing blocks are respectively fixed above and below one side of one of the protective covers, the two fixing assemblies are respectively arranged above and below one side of the other protective cover, two ends of the moving plate are respectively connected with the two fixing assemblies, the fixing assemblies correspond to the fixing blocks one by one, one side of each fixing block, which is close to the fixing assembly, is provided with a notch, the pull rod is fixedly connected with the moving plate, and the pull rod is perpendicular to the moving plate;
the fixed subassembly includes dead lever, spacing ring and spring, the both ends of movable plate respectively with the one end fixed connection of two dead levers, the spacing ring is fixed on the protecting sheathing, the other end of dead lever passes the spacing ring and sets up in the notch of fixed block, the other end and the notch of dead lever match, the spring sets up between spacing ring and movable plate, the both ends of spring are connected with spacing ring and movable plate respectively, the spring is in tensile state.
Preferably, in order to facilitate the use of the pull rod by an operator, the pull rod is provided with anti-skid grains.
Preferably, in order to facilitate the fixing rod to be inserted into the recess, an end of the fixing rod remote from the moving plate is formed in a hemispherical shape.
Preferably, in order to limit the moving direction of the fixing rod, two convex blocks are fixed in the ring hole of the limiting ring, the two convex blocks are symmetrically arranged about the axis of the limiting ring, two sliding grooves are formed in the fixing rod, the convex blocks correspond to the sliding grooves one to one, the convex blocks are arranged inside the sliding grooves, the convex blocks are matched with the sliding grooves, and the convex blocks are connected with the sliding grooves in a sliding mode.
As preferred, for the moving direction of restriction safety cover, the both sides of the below of safety cover all are equipped with the removal subassembly, the removal subassembly includes carriage release lever and slide rail, the top at the mount pad is fixed to the slide rail, the top of slide rail is equipped with the bar groove, the one end of carriage release lever and the below fixed connection of safety cover, the other end setting of carriage release lever is at the bar inslot, the other end and the bar groove of carriage release lever match, carriage release lever and bar groove sliding connection.
Preferably, in order to avoid the moving rod from being separated from the sliding rail, the strip-shaped groove is a dovetail groove.
The beneficial effects of the utility model are that, this digital current sensor that interference killing feature is strong can carry out shielding work to the main part through shield assembly, avoids external magnetic field too strong, influences current sensor's detection precision, has promoted anti-jamming ability, compares with current shield assembly, and this shield assembly installs conveniently, has improved the practicality of equipment.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of a digital current sensor with high interference rejection of the present invention;
fig. 2 is a schematic structural diagram of a fixing mechanism of the digital current sensor with high interference resistance according to the present invention;
fig. 3 is a schematic view of a connection structure between a limit ring and a fixed rod of the digital current sensor with high interference resistance of the present invention;
in the figure: 1. the novel safety protection device comprises a main body, 2 parts of a mounting seat, 3 parts of a protection cover, 4 parts of a pull rod, 5 parts of a moving plate, 6 parts of a fixed rod, 7 parts of a limiting ring, 8 parts of a spring, 9 parts of a fixed block, 10 parts of a moving rod, 11 parts of a sliding rail and 12 parts of a lug.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1, a digital current sensor with strong anti-interference capability comprises a main body 1 and a mounting base 2, wherein the main body 1 is fixed above the mounting base 2, a through hole is formed in the main body 1, the digital current sensor further comprises a shielding device, the shielding device comprises two protective covers 3 and two fixing mechanisms, a small hole is formed in one side of each protective cover 3 and matched with the through hole, the small hole and the through hole are coaxially arranged, the other sides of the two protective covers 3 abut against each other, an opening is formed in the lower portion of each protective cover 3 and matched with the main body 1, the two fixing mechanisms are respectively arranged on two sides, perpendicular to the small hole, of each protective cover 3, and conductive paint is coated on each protective cover 3;
this digital current sensor that interference killing feature is strong can carry out shielding work to main part 1 through shield assembly, avoids external magnetic field too strong, influences current sensor's detection precision, has promoted anti-jamming ability.
As shown in fig. 2, the fixing mechanism includes a pull rod 4, a moving plate 5, two fixing assemblies and two fixing blocks 9, the two fixing blocks 9 are respectively fixed above and below one side of one of the protection covers 3, the two fixing assemblies are respectively arranged above and below one side of the other protection cover 3, two ends of the moving plate 5 are respectively connected with the two fixing assemblies, the fixing assemblies are in one-to-one correspondence with the fixing blocks 9, a notch is arranged on one side of the fixing block 9 close to the fixing assemblies, the pull rod 4 is fixedly connected with the moving plate 5, and the pull rod 4 is perpendicular to the moving plate 5;
the fixed subassembly includes dead lever 6, spacing ring 7 and spring 8, the both ends of movable plate 5 respectively with the one end fixed connection of two dead levers 6, spacing ring 7 is fixed on safety cover 3, the other end of dead lever 6 passes spacing ring 7 and sets up in the notch of fixed block 9, the other end and the notch of dead lever 6 match, spring 8 sets up between spacing ring 7 and movable plate 5, spring 8's both ends are connected with spacing ring 7 and movable plate 5 respectively, spring 8 is in tensile state.
When carrying out the jam-proof during operation, the operative employee is earlier for holding pull rod 4, drive movable plate 5 through pull rod 4 and remove to the direction of keeping away from spacing ring 7, extension spring 8 simultaneously, drive dead lever 6 and remove, remove two safety cover 3 again, make two safety cover 3 support each other and lean on, make main part 1 be located the inside of two safety cover 3, pull rod 4 is set aside again, restoring force through spring 8, drive movable plate 5 and remove to the direction of being close to spacing ring 7, make dead lever 6 remove to the direction of being close to fixed block 9, thereby make the inside of fixed block 9 embedding notch, thereby fixed safety cover 3, make linking together that two safety cover 3 can be firmly, realize the function in shielding magnetic field, the ability of jam-proof has been promoted.
Preferably, in order to facilitate the use of the pull rod 4 by an operator, the pull rod 4 is provided with anti-skid lines.
Through setting up anti-skidding line, frictional force when having increased operative employee and pull rod 4 contact for the operative employee is difficult to break away from with pull rod 4, has improved the convenience of removing pull rod 4.
Preferably, in order to facilitate the insertion of the fixing lever 6 into the recess, an end of the fixing lever 6 remote from the moving plate 5 is formed in a hemispherical shape.
As shown in fig. 3, two protruding blocks 12 are fixed in the annular hole of the limiting ring 7, the two protruding blocks 12 are symmetrically arranged about the axis of the limiting ring 7, two sliding grooves are arranged on the fixing rod 6, the protruding blocks 12 correspond to the sliding grooves one to one, the protruding blocks 12 are arranged inside the sliding grooves, the protruding blocks 12 are matched with the sliding grooves, and the protruding blocks 12 are slidably connected with the sliding grooves.
When the fixed rod 6 moves along the axis of the limiting ring 7, the lug 12 on the ring hole of the limiting ring 7 is embedded in the sliding groove, so that the fixed rod 6 is prevented from rotating when moving, and the stability of the fixed rod 6 during moving is improved.
As preferred, for the moving direction of restriction safety cover 3, the both sides of the below of safety cover 3 all are equipped with the removal subassembly, the removal subassembly includes carriage release lever 10 and slide rail 11, slide rail 11 is fixed in the top of mount pad 2, the top of slide rail 11 is equipped with the bar groove, the one end of carriage release lever 10 and the below fixed connection of safety cover 3, the other end setting of carriage release lever 10 is in the bar inslot, the other end and the bar groove of carriage release lever 10 match, carriage release lever 10 and bar groove sliding connection.
When installation safety cover 3, put into the bar inslot on two slide rails 11 respectively with two carriage release levers 10 on the safety cover 3, two safety covers 3 of carriage release lever 10 again for two safety covers 3 support each other and lean on, and the fixed subassembly work of manual control again makes two safety covers 3 fixed, through setting up slide rail 11, has restricted the moving direction of carriage release lever 10, thereby has improved the stability when safety cover 3 removes.
Preferably, the strip-shaped groove is a dovetail groove in order to prevent the moving bar 10 from being separated from the slide rail 11.
When carrying out the jam-proof during operation, the operative employee is earlier for holding pull rod 4, drive movable plate 5 through pull rod 4 and remove to the direction of keeping away from spacing ring 7, extension spring 8 simultaneously, drive dead lever 6 and remove, put into the bar inslot on two slide rails 11 respectively with two movable rods 10 on the safety cover 3 again, two safety covers 3 of movable rod 10, make two safety covers 3 support each other and lean on, make main part 1 be located the inside of two safety covers 3, release pull rod 4 again, restoring force through spring 8, drive movable plate 5 and remove to the direction that is close to spacing ring 7, make dead lever 6 remove to the direction that is close to fixed block 9, thereby make the inside of fixed block 9 embedding notch, thereby fixed safety cover 3, make linking together that two safety covers 3 can firmly, realize the function of shielding magnetic field, the ability of jam-proof has been promoted.
Compared with the prior art, this digital current sensor that interference killing feature is strong can carry out shielding work to main part 1 through shield assembly, avoids external magnetic field too strong, influences current sensor's detection precision, has promoted anti-jamming ability, compares with current shield assembly, and this shield assembly dismouting is convenient, has improved the practicality of equipment.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The digital current sensor is characterized by further comprising a shielding device, wherein the shielding device comprises two protective covers (3) and two fixing mechanisms, a small hole is formed in one side of each protective cover (3) and matched with the through hole, the small hole and the through hole are coaxially arranged, the other sides of the two protective covers (3) are abutted against each other, an opening is formed in the lower portion of each protective cover (3) and matched with the main body (1), the two fixing mechanisms are respectively arranged on the two sides, perpendicular to the small hole, of each protective cover (3), and conductive paint is coated on each protective cover (3);
the fixing mechanism comprises a pull rod (4), a moving plate (5), two fixing assemblies and two fixing blocks (9), the two fixing blocks (9) are respectively fixed above and below one side of one of the protective covers (3), the two fixing assemblies are respectively arranged above and below one side of the other protective cover (3), two ends of the moving plate (5) are respectively connected with the two fixing assemblies, the fixing assemblies correspond to the fixing blocks (9) one by one, one side, close to the fixing assemblies, of each fixing block (9) is provided with a notch, the pull rod (4) is fixedly connected with the moving plate (5), and the pull rod (4) is perpendicular to the moving plate (5);
the fixed subassembly includes dead lever (6), spacing ring (7) and spring (8), the both ends of movable plate (5) respectively with the one end fixed connection of two dead levers (6), spacing ring (7) are fixed on safety cover (3), the other end of dead lever (6) passes spacing ring (7) and sets up in the notch of fixed block (9), the other end and the notch of dead lever (6) match, spring (8) set up between spacing ring (7) and movable plate (5), the both ends of spring (8) are connected with spacing ring (7) and movable plate (5) respectively, spring (8) are in tensile state.
2. The digital current sensor with high interference rejection of claim 1, wherein said pull rod (4) is provided with anti-slip patterns.
3. The digital current sensor with high interference rejection of claim 1, wherein the end of the fixed rod (6) far away from the moving plate (5) is shaped as a hemisphere.
4. The digital current sensor with high interference resistance as claimed in claim 1, wherein two bumps (12) are fixed in the ring hole of the limiting ring (7), the two bumps (12) are symmetrically arranged about the axis of the limiting ring (7), the fixing rod (6) is provided with two sliding grooves, the bumps (12) correspond to the sliding grooves one by one, the bumps (12) are arranged inside the sliding grooves, the bumps (12) are matched with the sliding grooves, and the bumps (12) are connected with the sliding grooves in a sliding manner.
5. The digital current sensor with high interference rejection of claim 1, wherein moving components are disposed on both sides of the lower portion of the protective cover (3), the moving components include a moving rod (10) and a sliding rail (11), the sliding rail (11) is fixed above the mounting base (2), a strip-shaped groove is disposed above the sliding rail (11), one end of the moving rod (10) is fixedly connected with the lower portion of the protective cover (3), the other end of the moving rod (10) is disposed in the strip-shaped groove, the other end of the moving rod (10) is matched with the strip-shaped groove, and the moving rod (10) is slidably connected with the strip-shaped groove.
6. The digital current sensor with high interference rejection of claim 5, wherein said strip-shaped groove is a dovetail groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920697121.4U CN210376463U (en) | 2019-05-15 | 2019-05-15 | Digital current sensor with strong anti-interference capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920697121.4U CN210376463U (en) | 2019-05-15 | 2019-05-15 | Digital current sensor with strong anti-interference capability |
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| Publication Number | Publication Date |
|---|---|
| CN210376463U true CN210376463U (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920697121.4U Active CN210376463U (en) | 2019-05-15 | 2019-05-15 | Digital current sensor with strong anti-interference capability |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113960348A (en) * | 2021-09-24 | 2022-01-21 | 国网河北省电力有限公司营销服务中心 | High-precision TMR current sensor for direct current metering |
| CN116990646A (en) * | 2023-08-04 | 2023-11-03 | 江苏征途技术股份有限公司 | High-frequency sensor device with high anti-interference capability |
-
2019
- 2019-05-15 CN CN201920697121.4U patent/CN210376463U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113960348A (en) * | 2021-09-24 | 2022-01-21 | 国网河北省电力有限公司营销服务中心 | High-precision TMR current sensor for direct current metering |
| CN116990646A (en) * | 2023-08-04 | 2023-11-03 | 江苏征途技术股份有限公司 | High-frequency sensor device with high anti-interference capability |
| CN116990646B (en) * | 2023-08-04 | 2024-04-26 | 江苏征途技术股份有限公司 | High-frequency sensor device with high anti-interference capability |
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