CN117250397A - Current abnormal condition monitoring device - Google Patents
Current abnormal condition monitoring device Download PDFInfo
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- CN117250397A CN117250397A CN202311386337.6A CN202311386337A CN117250397A CN 117250397 A CN117250397 A CN 117250397A CN 202311386337 A CN202311386337 A CN 202311386337A CN 117250397 A CN117250397 A CN 117250397A
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 23
- 230000002159 abnormal effect Effects 0.000 title claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 29
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000003825 pressing Methods 0.000 claims description 60
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 239000004411 aluminium Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 4
- 239000003086 colorant Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000005856 abnormality Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
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- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The invention discloses a current abnormal condition monitoring device which comprises a shell, wherein a dial and two wire inserting holes are formed in the front surface of the shell, a movable clamping piece is arranged in each wire inserting hole, a pointer is arranged below each dial, the pointer is rotatably arranged on the shell, a driving piece for driving the pointer to rotate is arranged on the inner side of the shell, each driving piece comprises a magnet, a pole shoe, a spiral spring, an aluminum frame and a rotating shaft, the two pole shoes are fixed on two sides of the magnet, one side of each pole shoe opposite to the corresponding pole shoe is an arc surface, the aluminum frame and the arc surface of each pole shoe are concentrically arranged, and the aluminum frame is rotatably arranged in the shell through the rotating shaft.
Description
Technical Field
The invention discloses a current abnormal condition monitoring device, and belongs to the technical field of electric monitoring elements.
Background
With the development of economy, different loads are used in the production of households and enterprises, and when abnormal current is transmitted to the loads, the risk of fire or the influence on the service life of the loads exists. Currently, when an abnormal current is measured in order to reduce such a risk, many current monitors are developed, and most of the existing monitoring devices use a measuring meter to determine the magnitude of the measured current, and the measuring cannot quickly and intuitively transmit a signal of the abnormal current, so that the overall practicability is still to be improved.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a current abnormal condition monitoring device.
The invention realizes the purpose through the following technical scheme, the current abnormal condition monitoring device comprises a shell, the front of the shell is provided with a dial and two wire inserting holes, movable clamping pieces are arranged in the wire inserting holes, pointers are arranged below the dial, the pointers are rotatably arranged on the shell, driving pieces for driving the pointers to rotate are arranged on the inner side of the shell, the driving pieces comprise magnets, pole shoes, spiral springs, aluminum frames and rotating shafts, the pole shoes are provided with two and are fixed on two sides of the magnets, one side of each pole shoe opposite to the other is an arc surface, the aluminum frames and the pole shoes are concentrically arranged, the aluminum frames are rotatably arranged in the shell through the rotating shafts, a plurality of coils are wound on the aluminum frames along the length direction of each coil, one end of each coil is sleeved on the outer side of each rotating shaft, the other end of each coil is fixedly connected with the corresponding to the corresponding rotating shaft, three groups of conducting sheets are arranged on the outer sides of the rotating shafts, the three groups of conducting sheets are arranged on the corresponding to the rotating shafts of the movable clamping pieces, one end of each of the corresponding to the corresponding conducting sheets, and the three groups of conducting sheets are electrically connected to the corresponding three groups of the corresponding conducting sheets on the corresponding to the corresponding arc pieces, and the three groups of the corresponding to the three groups of the arc lamps are electrically connected in parallel to the arc lamps.
Preferably, the three groups of arc conducting strips are a first conducting strip, a second conducting strip and a third conducting strip, the first conducting strip, the second conducting strip and the third conducting strip are arranged in sequence, the three conducting strips are provided with two conducting strips, the second conducting strip and the first conducting strip are mutually abutted to each other and provided with insulating coatings, the three conducting strips are provided with binding posts penetrating through the circular rings, the first conducting strip is used for transmitting signals with current in a coil smaller than a normal value range when being electrified with an indicator light of a first color, the second conducting strip is used for transmitting signals with current in the coil in the normal value range when being electrified with an indicator light of a second color, and the third conducting strip is used for transmitting signals with current in the coil larger than the normal value range when being electrified with an indicator light of a third color.
Preferably, the pointer comprises a needle body and a conductive part, one end of the needle body is fixedly connected with the conductive part, the conductive part comprises a first limit bolt, a first spring and a sliding block, the first limit bolt penetrates through the conductive part and is fixedly connected with the sliding block, the first spring is sleeved on the first limit bolt, two ends of the first spring are respectively abutted against the conductive part and the sliding block, and one end of the sliding block abutted against the arc-shaped conductive sheet is of a spherical structure.
Preferably, the rotating shaft comprises rotating rods positioned at two sides of the aluminum frame, a wire harness disc is further arranged between the rotating rods and the aluminum frame, the wire harness disc is fixed with the aluminum frame through bolts, a through groove for a coil to pass through is formed in the middle of the wire harness disc, the rotating rods are rotationally connected with the shell, and the rotating rods are fixedly connected with the wire harness disc through bolts.
Preferably, a timing circuit is further arranged in the shell, the timing circuit comprises a monostable circuit formed by a 555 timing chip and a relay, the relay comprises a relay coil and a normally open contact of the relay, the output end of the 555 timing chip is coupled with the relay coil, and the normally open contact of the relay is coupled with the power supply end of the coil.
Preferably, the two ends of the coil are connected with three resistors with different resistance values in parallel, and a movable adjusting piece for controlling the states of the resistors and the coil is arranged in the shell.
Preferably, the movable adjusting piece comprises a sliding seat, a limiting piece, a pressing rod, a second spring, a third spring and a wire fixing seat, wherein a cavity for installing the sliding seat and the limiting piece is arranged in the shell, the sliding seat is fixedly connected with the shell, a sliding groove for the sliding of the limiting piece is formed in the sliding seat, a limiting boss for positioning the second spring is arranged on one side of the limiting piece, the limiting piece is provided with a first notch, a second notch, a third notch and a fourth notch which are distributed at equal intervals, the pressing rod and the third spring are respectively arranged in the four notches and correspond to the first notch, the second notch, the third notch and the fourth notch, the pressing rod is of a T-shaped structure, one end of the pressing rod is located in the cavity, the other end of the pressing rod extends to the outer side of the shell and is provided with a key, the third spring is sleeved on the outer side of the pressing rod, two ends of the pressing rod are respectively abutted to the key and the shell, the third spring is provided with a mounting piece for fixing resistors on the pressing rod, the second notch, the third notch and the fourth notch are located below the third resistor, the fourth notch is arranged on the second notch, the fourth notch is correspondingly arranged on the second notch and the fourth notch, the fourth notch is arranged on the same side of the sliding seat, the fourth notch is matched with the fourth notch, and the fourth notch is arranged on the second notch, and the fourth notch is matched with the fourth notch, and the fourth notch is arranged on the side of the sliding seat, and the sliding seat is correspondingly on the side of the fourth notch.
Preferably, the mounting piece comprises a mounting plate and a second limit bolt, a non-circular structure rotation preventing part is arranged on the second limit bolt, the second limit bolt passes through the mounting plate and then is in threaded connection with the pressing rod, a metal plate is arranged on the mounting plate, the resistor is arranged in the middle of the metal plate, and wiring bolts are arranged at two ends of the metal plate and on the wire fixing seat.
Preferably, the movable clamping piece comprises a cover plate, a movable block, a fourth spring and a conductive pressing piece, wherein the movable block is slidably arranged in the shell, pressing protrusions extending to the outer side of the cover plate are arranged on the movable block, two ends of the fourth spring are respectively abutted against the shell and the movable block, the conductive pressing piece is of a semicircular structure, one end of the conductive pressing piece is fixedly connected with the movable block, and two conductive pressing pieces are electrically connected with two ends of the coil.
Compared with the prior art, the invention has the beneficial effects that:
through setting up casing, driving piece, pointer, arc conducting strip, conducting piece and pilot lamp, under the condition of coil circular telegram, coil and pointer rotate certain angle for the conducting piece follows the same angle of pointer rotation, and realizes the intercommunication of circuit with corresponding arc conducting strip, so that the pilot lamp lights up, thereby quick audio-visual transmission goes out the signal of the electric current size through the coil, so can carry out real-time supervision to the unusual condition of electric current.
Through setting up timing circuit and movable regulating part, timing circuit can control coil circuit's timing break-make to reach the condition of timing monitoring current, make coil spring can be repeated compression and resilience, avoid keeping same state for a long time and influence its life, and movable regulating part is through the resistance at the parallelly connected different resistance in the both ends of coil, make this monitoring devices can monitor the current of bigger scope, thereby enlarge its application range, and easy operation is convenient.
Drawings
FIG. 1 is a schematic diagram of a current anomaly monitoring device according to the present invention;
FIG. 2 is a schematic diagram of an internal structure of a current anomaly monitoring device according to the present invention;
FIG. 3 is a schematic diagram of the structure of the pointer and the driving member according to the present invention;
FIG. 4 is a schematic view of the structure of the shaft, coil spring and aluminum frame of the present invention;
FIG. 5 is a schematic view of the arc-shaped conductive sheet, conductive member and ring of the present invention;
FIG. 6 is a schematic view of a movable adjustment member according to the present invention;
FIG. 7 is a schematic view of the structure of the pressing bar and the mounting member of the present invention;
FIG. 8 is a partial cross-sectional view of the movable clamp and housing of the present invention;
FIG. 9 is a schematic circuit diagram of a current anomaly monitoring device according to the present invention;
reference numerals: 1. a housing; 2. a dial; 3. an indicator light; 4. a key; 5. a plug wire hole; 6. a pointer; 7. a rotating shaft; 8. a movable adjusting member; 9. a circular ring; 10. arc-shaped conductive sheets; 11. a needle body; 12. a conductive portion; 13. a coil; 14. a magnet; 15. pole shoes; 16. a rotating rod; 17. a coil spring; 18. an aluminum frame; 19. a through groove; 20. a first conductive sheet; 21. a sliding block; 22. a first limit bolt; 23. a second conductive sheet; 24. a third conductive sheet; 25. a first spring; 26. binding posts; 27. a second spring; 28. a limit boss; 29. a chute; 30. a slide guiding inclined plane; 31. a first recess; 32. a second notch; 33. a third recess; 34. a fourth notch; 35. a sliding seat; 36. a limiting piece; 37. limiting bayonet; 38. a third spring; 39. a mounting member; 40. a wire harness disc; 41. a resistor; 42. a wire fixing seat; 43. pressing a pressing rod; 44. a wiring bolt; 45. a mounting piece; 46. an anti-rotation part; 47. the second limit bolt; 48. a metal sheet; 49. a fourth spring; 50. a movable block; 51. a cover plate; 52. pressing the bulge; 53. a conductive pressing member; 54. a timing circuit; 55. and a conductive member.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-9, a current abnormal condition monitoring device, which comprises a housing 1, the front of casing 1 is provided with calibrated scale 2 and two plug wire holes 5, be provided with movable chucking spare in the plug wire holes 5, the below of calibrated scale 2 is provided with pointer 6, pointer 6 rotates and installs on casing 1, casing 1 inboard is provided with the driving piece that is used for driving pointer 6 pivoted, the driving piece includes magnet 14, pole shoe 15, coil spring 17, aluminium frame 18 and pivot 7, pole shoe 15 is provided with two, and fix in the both sides of magnet 14, two pole shoes 15 relative one side is the arcwall, aluminium frame 18 and pole shoe 15 arcwall concentric arrangement, and aluminium frame 18 passes through pivot 7 rotation and installs in casing 1, around a plurality of circle coil 13 on the aluminium frame 18 along its length direction, coil spring 17 cover is established in the outside of pivot 7, and its one end and pivot 7 fixed connection, the other end and casing 1 fixed connection, the both ends and movable chucking spare electric connection of coil 13 correspond the outside of pivot 7 and are provided with ring 9, be provided with three sets of conducting strips 10 on the ring 9, the three conducting strips 6 are fixed on the pivot 6 and the three conducting strips of pointer 6 have three sets of conducting strips 3 and arc lamp sets 3, wherein, three lamp sets of conducting strips are connected in parallel with three lamp 3, 3 are connected in parallel with three lamp sets of conducting strips 3.
As shown in fig. 3, fig. 4 and fig. 5, three groups of arc-shaped conductive sheets 10 are a first conductive sheet 20, a second conductive sheet 23 and a third conductive sheet 24, the first conductive sheet 20, the second conductive sheet 23 and the third conductive sheet 24 are sequentially arranged, two of the three groups of arc-shaped conductive sheets are arranged, the second conductive sheet 23 and the first conductive sheet 20 and the third conductive sheet 24 are mutually abutted with an insulating coating, and are provided with a binding post 26 penetrating through a circular ring 9, the first conductive sheet 20 and the first color indicator 3 are used for transmitting signals in a normal value range, the current in the coil 13 is smaller than the signal in the normal value range when the first conductive sheet 20 and the first color indicator 3 are electrified, the second conductive sheet 23 and the second color indicator 3 are used for transmitting signals in the normal value range when the second color indicator 3 is electrified, the current in the third conductive sheet 24 and the third color indicator 3 are used for transmitting signals in the normal value range, the current in the coil 13 is larger than the signal in the normal value range when the third color indicator 3 is electrified, the indicator 3 of the three colors can be set to be green, yellow and red, the yellow indicator 3 and the red indicator 3 are electrically connected with the two first conductive sheets 20, when the current in the range is smaller than the normal value range of the first conductive sheet 6, the current in the normal value range is convenient to rotate the indicator 3, the current in the normal value range is more than the normal value range is set to the second indicator 3, the current in the normal value is visual range is made to be more than the normal value, the normal value is made to be the normal, the current in the normal value range is made to the indicator 3, the normal value is visual indicator is in the normal range is convenient to be connected to the normal value and the normal value is in the normal value 3 and the normal value is in the normal value range is in the normal value range 3 and the normal value range is in the normal value and the normal value 3 and the normal value is in the normal value high electrical value, the coating on both sides of the second conductive sheet 23 can block the communication with the first conductive sheet 20 and the third conductive sheet 24.
As shown in fig. 2, 3 and 5, the pointer 6 includes a needle body 11 and a conductive part 12, one end of the needle body 11 is fixedly connected with the conductive part 12, the conductive member 55 includes a first limit bolt 22, a first spring 25 and a sliding block 21, the first limit bolt 22 passes through the conductive part 12 and is fixedly connected with the sliding block 21, the first spring 25 is sleeved on the first limit bolt 22, two ends of the first spring are respectively in contact with the conductive part 12 and the sliding block 21, one end of the sliding block 21 in contact with the arc-shaped conductive sheet 10 is in a spherical structure, the conductive member 55 is equivalent to a movable switch, the indication lamps 3 with different colors can be controlled to be turned on, and the acting force exerted by the first spring 25 on the sliding block 21 can always keep contact with the first conductive sheet 20, the second conductive sheet 23 or the third conductive sheet 24, so that even if the sliding block 21 is worn, the circuit in the indication lamp 3 can be communicated.
As shown in fig. 3 and 4, the rotating shaft 7 includes a rotating rod 16 located at two sides of the aluminum frame 18, a wire harness disc 40 is further disposed between the rotating rod 16 and the aluminum frame 18, the wire harness disc 40 is fixed to the aluminum frame 18 through bolts, a through groove 19 for the coil 13 to pass through is disposed in the middle of the wire harness disc 40, the rotating rod 16 is rotationally connected with the housing 1, the rotating rod 16 is fixedly connected with the wire harness disc 40 through bolts, when the coil 13 is wound on the aluminum frame 18, the through groove 19 on the wire harness disc 40 can play a role in wire harness, so that the coil 13 is wound intensively as much as possible, and the rotating rod 16, the wire harness disc 40 and the aluminum frame 18 are connected in a split manner, so that the driving piece can be conveniently dismounted.
As shown in fig. 1 and 9, a timing circuit 54 is further arranged in the shell 1, the timing circuit 54 comprises a monostable circuit formed by a 555 timing chip and a relay, the relay comprises a relay coil and a relay normally open contact, the output end of the 555 timing chip is coupled with the relay coil, the normally open contact of the relay is coupled with the power supply end of the coil 13, the timing circuit 54 is arranged, when the positive pole plug wire of the external circuit supplies power for the timing circuit 54, the output of the 555 timing chip is converted from low level to high level, the relay coil K1 is in a working state, the relay normally open contact K1 is closed and outputs a working signal, the circuit of the coil 13 is led in with current, at the moment, the pointer 6 starts to rotate, meanwhile, the 7 th pin of the 555 timing chip is internally cut off, the power can charge the capacitor C2 through R6, the timing starting state of the timing process is the moment, when the voltage of the capacitor C2 rises to 2/3 of the power voltage, the 7 th pin of the 555 timing chip discharges the capacitor C2, so that the high level output by the 3 rd pin is converted into the low level, the relay coil K1 is released, no working signal is output, the coil 13 circuit is powered off, the pointer 6 rotates under the action of the coil spring 17, the current of the circuit to be monitored can be periodically monitored by utilizing the timing circuit 54, the pointer 6 can normally rotate and rotate, the coil spring 17 does not need to keep a larger compression state all the time, the effect of current monitoring can be achieved, the service life of the monitoring device can be prolonged, and the time of timing monitoring can be controlled according to the sizes of the R6 and the C2.
As shown in fig. 2, 6 and 7, three resistors 41 with different resistance values are connected in parallel at two ends of the coil 13, a movable adjusting piece 8 for controlling the electrifying state of the resistor 41 and the coil 13 is arranged in the shell 1, the movable adjusting piece 8 comprises a sliding seat 35, a limiting piece 36, a pressing rod 43, a second spring 27, a third spring 38 and a wire fixing seat 42, a cavity for installing the sliding seat 35 and the limiting piece 36 is arranged in the shell 1, the sliding seat 35 is fixedly connected with the shell 1, a sliding groove 29 for sliding the limiting piece 36 is arranged on the sliding seat 35, a limiting boss 28 for positioning the second spring 27 is arranged at one side of the limiting piece 36, the limiting piece 36 is provided with a first notch 31, a second notch 32, a third notch 33 and a fourth notch 34 which are distributed at equal intervals, the pressing rod 43 and the third spring 38 are respectively arranged corresponding to the first notch 31, the second notch 32, the third notch 33 and the fourth notch 34, the pressing rod 43 is of a T-shaped structure, one end of the pressing rod 43 is located in the cavity, the other end of the pressing rod extends to the outer side of the shell 1 and is provided with a key 4, the third spring 38 is sleeved on the outer side of the pressing rod 43, two ends of the third spring are respectively abutted against the key 4 and the shell 1, the three pressing rods 43 are provided with mounting pieces 39 for fixing resistors 41, the second notch 32, the third notch 33 and the fourth notch 34 are located below the three resistors 41, the wire fixing seats 42 are provided with six wire fixing seats and are correspondingly arranged on two sides of the second notch 32, the third notch 33 and the fourth notch 34, two ends of the coil 13 are respectively connected to the wire fixing seats 42 on two sides of the same notch, limiting bayonets 37 for blocking the upward movement of the pressing rod 43 are respectively arranged on the second notch 32, the third notch 33 and the fourth notch 34, and the first notch 31, the second notch 32, the third notch 33 and the fourth notch 34 are respectively provided with a sliding guide inclined plane 30 matched with the pressing rod 43, the projection lengths of the four sliding guide inclined planes 30 in the sliding direction of the limiting plate 36 are set according to a rule, the mounting piece 39 comprises a mounting plate 45 and a second limiting bolt 47, the second limiting bolt 47 is provided with an anti-rotation part 46 with a non-circular structure, the second limiting bolt 47 penetrates through the mounting plate 45 and is in threaded connection with the pressing rod 43, the mounting plate 45 is provided with a metal plate 48, the resistor 41 is arranged in the middle of the metal plate 48, both ends of the metal plate 48 and the wire fixing seat 42 are respectively provided with a wiring bolt 44, the projection length of the sliding guide inclined plane 30 in the first notch 31 is the largest, the projection lengths of the sliding guide inclined planes 30 in the second notch 32, the third notch 33 and the fourth notch 34 are sequentially increased, when the pressing rod 43 corresponding to the second notch 32 is pressed down, the resistor 41 on the pressing rod 43 synchronously moves down, the pressing rod 43 slides into the second notch 32 along the sliding guide inclined plane 30, and forces the limiting plate 36 to slide towards one side to compress the second spring 27, when the pressing rod 43 slides to the bottom of the second notch 32, the second spring 27 drives the limiting plate 36 to reset, so that the pressing rod 43 is clamped in the limiting bayonet 37, at the moment, the pressing rod 43 cannot reset under the action of the third spring 38, the resistor 41 is communicated with the two wire fixing seats 42 through the metal sheet 48, so that the resistor 41 can be connected in parallel with two ends of the coil 13, and the pressing rods 43 corresponding to the third notch 33 and the fourth notch 34 can enable the previous pressing rod 43 to be separated from the limiting bayonet 37 to reset when the limiting plate 36 slides due to different projection lengths of the sliding guide inclined plane 30, thereby achieving the effect of connecting only one resistor 41 in parallel or connecting no resistor 41 in parallel, by incorporating the resistors 41 of different resistances in this way, the current range that can be monitored by the monitoring device is made larger, thereby expanding the range of use thereof.
As shown in fig. 2 and 8, the movable clamping piece comprises a cover plate 51, a movable block 50, a fourth spring 49 and a conductive pressing piece 53, wherein the movable block 50 is slidably installed in the shell 1, a pressing protrusion 52 extending to the outer side of the cover plate 51 is arranged on the movable block 50, two ends of the fourth spring 49 respectively collide with the shell 1 and the movable block 50, the conductive pressing piece 53 is of a semicircular structure, one end of the conductive pressing piece 53 is fixedly connected with the movable block 50, the two conductive pressing pieces 53 are electrically connected with two ends of the coil 13, the movable block 50 slides in the shell 1 and drives the conductive pressing piece 53 to synchronously move, after a positive pole plug wire post and a negative pole plug wire post of an external power supply are inserted into the plug wire hole 5, the conductive pressing piece 53 resets under the action of the fourth spring 49 and presses the plug wire post, so that the plug wire post cannot be separated from the plug wire hole 5 outwards, and looseness is avoided.
Working principle: the positive and negative pole plug wire posts of the circuit to be monitored are inserted into the jacks, the push protrusions 52 are firstly pressed and then are released, the positive and negative pole plug wire posts are fixed by utilizing the conductive pressing piece 53 and are communicated with two ends of the coil 13 to realize circuit communication, then the timing circuit 54 enables the coil 13 to be closed and to be electrified according to a certain time period, after the current flows through the coil 13, the aluminum frame 18 and the coil 13 are enabled to rotate by a certain angle under the action of a magnetic field generated by the magnet 14 and the pole shoe 15 under the action of ampere force, the pointer 6 rotates by the same angle along with the rotating shaft 7, the rotating angle and the current are in a certain proportion, meanwhile, the pointer 6 can keep the circuit in the color indicator lamp 3 to be communicated and be lightened when rotating, so that whether a signal of an abnormal condition exists or not can be quickly transmitted, and the specific value of the current can be measured by the dial 2.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (9)
1. The utility model provides a current abnormal condition monitoring device, includes casing (1), its characterized in that, the front of casing (1) is provided with calibrated scale (2) and two plug wire holes (5), be provided with movable chucking spare in plug wire hole (5), the below of calibrated scale (2) is provided with pointer (6), pointer (6) rotate and install on casing (1), casing (1) inboard is provided with the driving piece that is used for driving pointer (6) pivoted, the driving piece includes magnet (14), pole shoe (15), coil spring (17), aluminium frame (18) and pivot (7), pole shoe (15) are provided with two to fix in the both sides of magnet (14), two one side that pole shoe (15) are opposite is the arc surface, aluminium frame (18) and pole shoe (15) arc surface concentric arrangement, and aluminium frame (18) are installed in casing (1) through pivot (7) rotation, a plurality of coils (13) are wound on aluminium frame (18) along its length direction, coil spring (17) cover is established in the outside of coil spring (7) and is connected with one end of movable connection, the coil spring (7) is fixed with one end of the fixed connection of coil (13), the utility model discloses a motor, including casing (1), pivot (7), including casing (1), pilot lamp (3) and coil (13), the outside of casing (1) corresponding pivot (7) is provided with ring (9), be provided with three sets of arc conducting strip (10) on ring (9), the one end of pointer (6) is fixed on pivot (7), and has on pointer (6) with one of them a set of arc conducting strip (10) intercommunication electrically conductive piece (55), be provided with pilot lamp (3) of three different colours on casing (1), three pilot lamp (3) and three arc conducting strip (10) one-to-one electric connection, and pilot lamp (3) are parallelly connected with coil (13).
2. The current anomaly monitoring device according to claim 1, characterized in that three groups of arc-shaped conductive sheets (10) are a first conductive sheet (20), a second conductive sheet (23) and a third conductive sheet (24), the first conductive sheet (20), the second conductive sheet (23) and the third conductive sheet (24) are arranged in sequence, two of the three groups are provided with insulating coatings, the second conductive sheet (23) and the first conductive sheet (20) and the third conductive sheet (24) are mutually abutted, and the three groups are provided with binding posts (26) penetrating through the circular ring (9), the first conductive sheet (20) and the indicator lamp (3) of the first color are used for transmitting signals with current in the coil (13) smaller than a normal value range, the second conductive sheet (23) and the indicator lamp (3) of the second color are used for transmitting signals with current in the coil (13) in the normal value range, and the third conductive sheet (24) and the indicator lamp (3) of the third color are used for transmitting signals with current in the coil (13) of the third color larger than the normal value range.
3. The current abnormal condition monitoring device according to claim 2, wherein the pointer (6) comprises a needle body (11) and a conductive part (12), one end of the needle body (11) is fixedly connected with the conductive part (12), the conductive part (55) comprises a first limit bolt (22), a first spring (25) and a sliding block (21), the first limit bolt (22) penetrates through the conductive part (12) and is fixedly connected with the sliding block (21), the first spring (25) is sleeved on the first limit bolt (22), two ends of the first spring are respectively abutted against the conductive part (12) and the sliding block (21), and one end of the sliding block (21) abutted against the arc-shaped conductive piece (10) is in a spherical structure.
4. A current abnormality monitoring device according to claim 3, characterized in that the rotating shaft (7) comprises rotating rods (16) located at two sides of the aluminum frame (18), a wire harness disc (40) is further arranged between the rotating rods (16) and the aluminum frame (18), the wire harness disc (40) is fixed with the aluminum frame (18) through bolts, a through groove (19) for a coil (13) to pass through is formed in the middle of the wire harness disc (40), the rotating rods (16) are rotatably connected with the shell (1), and the rotating rods (16) are fixedly connected with the wire harness disc (40) through bolts.
5. The current abnormal condition monitoring device according to claim 1, wherein a timing circuit (54) is further arranged in the shell (1), the timing circuit (54) comprises a monostable circuit formed by a 555 timing chip and a relay, the relay comprises a relay coil and a normally open contact of the relay, an output end of the 555 timing chip is coupled with the relay coil, and the normally open contact of the relay is coupled with a power supply end of the coil (13).
6. The current abnormality monitoring device according to claim 1, characterized in that three resistors (41) with different resistance values are connected in parallel to both ends of the coil (13), and a movable adjusting member (8) for controlling the energizing state of the resistor (41) and the coil (13) is provided in the housing (1).
7. The current abnormality monitoring device according to claim 6, wherein the movable adjusting member (8) comprises a sliding seat (35), a limiting plate (36), a pressing rod (43), a second spring (27), a third spring (38) and a wire fixing seat (42), a cavity for installing the sliding seat (35) and the limiting plate (36) is arranged in the shell (1), the sliding seat (35) is fixedly connected with the shell (1), a sliding groove (29) for sliding the limiting plate (36) is arranged on the sliding seat (35), a limiting boss (28) for positioning the second spring (27) is arranged on one side of the limiting plate (36), a first notch (31), a second notch (32), a third notch (33) and a fourth notch (34) which are distributed at equal intervals are arranged on the limiting plate (36), the pressing rod (43) and the third spring (38) are respectively arranged in four, the pressing rod (43) and the third notch (38) are respectively arranged corresponding to the first notch (31), the second notch (32), the third notch (33) and the fourth notch (34) are arranged on one side of the sliding seat (35), the pressing rod (36) is provided with a key (43) which is arranged on the other end, and extends to the other end (4) of the pressing rod (43) and is arranged on the outer side of the shell, and both ends are contradicted with button (4) and casing (1) respectively, wherein three all be provided with mounting (39) that are used for fixed resistance (41) on pressing pole (43), second notch (32), third notch (33) and fourth notch (34) are located the below of three resistance (41), gu line seat (42) are provided with six to correspond the both sides that set up in second notch (32), third notch (33) and fourth notch (34), the both ends of coil (13) are connected respectively on solid line seat (42) of same notch both sides, all be provided with on second notch (32), third notch (33) and the fourth notch (34) and be used for blockking pressing pole (43) upwards to remove spacing bayonet socket (37), and all be provided with on first notch (31), second notch (32), third notch (33) and fourth notch (34) with pressing pole (43) complex lead smooth inclined plane (30), four lead smooth inclined plane (30) and set up spacing piece according to the length of projection law in the direction of sliding in pressing pole (36).
8. The current abnormal condition monitoring device according to claim 7, wherein the mounting piece (39) comprises a mounting plate (45) and a second limit bolt (47), an anti-rotation part (46) with a non-circular structure is arranged on the second limit bolt (47), the second limit bolt (47) penetrates through the mounting plate (45) and then is in threaded connection with the pressing rod (43), a metal plate (48) is arranged on the mounting plate (45), the resistor (41) is arranged in the middle of the metal plate (48), and connection bolts (44) are arranged at two ends of the metal plate (48) and on the wire fixing seat (42).
9. The current abnormal condition monitoring device according to claim 1, wherein the movable clamping piece comprises a cover plate (51), a movable block (50), a fourth spring (49) and a conductive pressing piece (53), the movable block (50) is slidably mounted in the shell (1), the movable block (50) is provided with a pressing protrusion (52) extending to the outer side of the cover plate (51), two ends of the fourth spring (49) are respectively abutted against the shell (1) and the movable block (50), the conductive pressing piece (53) is of a semicircular structure, one end of the conductive pressing piece is fixedly connected with the movable block (50), and two conductive pressing pieces (53) are electrically connected with two ends of the coil (13).
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| CN202311386337.6A CN117250397B (en) | 2023-10-25 | 2023-10-25 | Current abnormal condition monitoring device |
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| CN202311386337.6A CN117250397B (en) | 2023-10-25 | 2023-10-25 | Current abnormal condition monitoring device |
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| CN117250397A true CN117250397A (en) | 2023-12-19 |
| CN117250397B CN117250397B (en) | 2024-01-26 |
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| CN202311386337.6A Active CN117250397B (en) | 2023-10-25 | 2023-10-25 | Current abnormal condition monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117712845A (en) * | 2023-12-21 | 2024-03-15 | 河北美辉科技有限公司 | Intelligent electrical power distribution cabinet |
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| Publication number | Publication date |
|---|---|
| CN117250397B (en) | 2024-01-26 |
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