CN117214491A - Frequency converter current detection device and detection method - Google Patents
Frequency converter current detection device and detection method Download PDFInfo
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- CN117214491A CN117214491A CN202311233538.2A CN202311233538A CN117214491A CN 117214491 A CN117214491 A CN 117214491A CN 202311233538 A CN202311233538 A CN 202311233538A CN 117214491 A CN117214491 A CN 117214491A
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- 238000001514 detection method Methods 0.000 title claims abstract description 135
- 239000002184 metal Substances 0.000 claims abstract description 104
- 229910052751 metal Inorganic materials 0.000 claims abstract description 104
- 239000000523 sample Substances 0.000 claims abstract description 70
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229910052742 iron Inorganic materials 0.000 claims abstract description 18
- 238000001125 extrusion Methods 0.000 claims description 42
- 230000001681 protective effect Effects 0.000 claims description 38
- 230000006835 compression Effects 0.000 claims description 28
- 238000007906 compression Methods 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 7
- 230000000630 rising effect Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The invention belongs to the field of frequency converters and discloses a frequency converter current detection device and a detection method, wherein the detection device comprises a detection device shell, a plurality of cavities are formed in the inner bottom of the detection device shell, iron pins are inserted in the cavities, conductive metal rods are arranged in the detection device shell and above the iron pins, movable adjusting blocks are sleeved on the conductive metal rods, conductive metal sheets are arranged on the upper side surfaces of the movable adjusting blocks and are electrically connected with the conductive metal rods, support rods are arranged in the detection device shell and above the conductive metal rods, metal coils are arranged on the support rods, shells are symmetrically arranged on the upper side surfaces of the detection device shell, and detection pens are arranged on the outer side surfaces of the detection device shell. Through flexible electrically conductive refill, adjusting device, metal probe and the cooperation of detecting pen, be convenient for change metal probe, prevent long-time use, the easy oxide layer that accumulates in surface leads to being unfavorable for the problem of detection.
Description
Technical Field
The invention belongs to the technical field of frequency converters, and particularly relates to a frequency converter current detection device and a detection method.
Background
The frequency converter is a power control device which controls the alternating current motor by changing the frequency of a working power supply of the motor by applying a frequency conversion technology and a microelectronic technology. The frequency converter is used for adjusting the voltage and frequency of an output power supply by switching on and off the internal IGBT, and providing the required power supply voltage according to the actual requirement of the motor so as to achieve the purposes of energy saving and speed regulation.
The utility model provides a chinese patent of patent application number CN202110759868X discloses an alternating current converter current detection device, including the detection device shell, the bottom surface is equipped with a plurality of cavitys in the detection device shell, peg graft in the cavity and be equipped with the iron needle, the one end that the iron needle is located the cavity is equipped with the stopper, be equipped with conductive metal stick in the detection device shell, it is equipped with the removal regulating block to cup joint on the conductive metal stick, it is equipped with the conducting metal piece to remove the regulating block upside, and in the detection device shell and be located conductive metal stick top be equipped with the bracing piece, be equipped with metal coil on the bracing piece, the side symmetry is equipped with the casing on the detection device shell, the detection device shell is close to the position grafting of casing and is equipped with the wire, wire expansion end electric connection is equipped with anodal detection pen and negative pole detection pen respectively. The invention uses the commonly-called electricity magnetic generation distance to visually see the current magnitude, and the metal coil can be used for amplifying or reducing the detected current, so that the observation process is clearer.
However, in the use process, the surface of the metal probe of the detection pen is easy to accumulate an oxide layer after long-time use, the sensitivity of the metal probe is reduced, and the metal probe is not easy to replace, so that the detection is not easy to realize.
Disclosure of Invention
Aiming at the problems that in the prior art, an oxide layer is easy to accumulate on the surface of a metal probe of a detection pen after long-time use, the sensitivity of the metal probe is reduced, the metal probe is not easy to replace, and the detection is not facilitated, the invention provides the following technical scheme: the utility model provides a converter electric current detection device, including the detection device shell, be equipped with a plurality of cavitys in the detection device shell, peg graft in the cavity and be equipped with the iron needle, just be located the iron needle top in the detection device shell and be equipped with conductive metal stick, it is equipped with the removal regulating block to cup joint on the conductive metal stick, it is equipped with conductive metal sheet to remove the regulating block upside, conductive metal sheet and conductive metal stick electric connection, in the detection device shell and be located conductive metal stick top, be equipped with the bracing piece on the bracing piece, be equipped with metal coil on the bracing piece, the upper side symmetry is equipped with the casing in the detection device shell, the detection device shell lateral surface is equipped with the detection pen, the inside metal probe that is provided with in bottom of detection pen, the top of metal probe is provided with flexible conductive pen core, the surface of flexible conductive pen core is provided with adjusting device, the bottom of detection pen is provided with the protective sheath, the top of protective sheath and the surface that is located the detection pen are provided with mobile device.
As the preference of above-mentioned technical scheme, detection pen electric connection is equipped with the wire, and detection pen's wire passes detection device shell and casing and metal coil electric connection in proper order, and the equal fixedly connected with buckle of both sides surface of detection device shell, the inside and the detection pen joint of buckle.
As the preference of above-mentioned technical scheme, adjusting device includes the movable block, and the inner wall of movable block cup joints with the surface activity of flexible electrically conductive refill, and the bottom fixedly connected with compression spring of movable block, compression spring's bottom fixedly connected with extrusion piece, the both sides of extrusion piece are the inclined plane, and extrusion piece's bottom is provided with the stopper.
As the preference of the technical scheme, one end of the compression spring is fixedly connected with the movable block, the other end of the compression spring is fixedly connected with the extrusion block, and both sides of the limiting block are fixedly connected with the inner wall of the through groove.
As the preference of above-mentioned technical scheme, the recess is seted up at the middle part of stopper, and the recess is passed to the bottom of flexible electrically conductive refill, and the movable groove has all been seted up to the both sides of recess, and the swing joint of movable groove has the arch, protruding and the laminating of the surface of flexible electrically conductive refill, bellied one side fixedly connected with reset spring, one side fixedly connected with gag lever post of reset spring, the both sides of stopper just are located the both sides inner wall of detecting the pen and all set up movable groove, the inside swing joint of gag lever post and movable groove.
As the optimization of above-mentioned technical scheme, mobile device includes the fixed block, and one side and the mobile block fixed connection of fixed block, the bottom fixedly connected with first rack of fixed block, the middle part meshing of first rack has the gear, and one side meshing of gear has the second rack, and the top and the protective sheath fixed connection of second rack.
As the preference of above-mentioned technical scheme, the protective sheath is located the outside of metal probe, and the slot has been seted up at the top of protective sheath, and the inside of slot is pegged graft with the bottom of first rack, and first rack and second rack are located the outside of detecting pen.
As the preference of above-mentioned technical scheme, the spout has been seted up to the surface of detecting the pen, and the surface and the spout sliding connection of fixed block, the below of spout just is located the surface fixedly connected with mounting panel of detecting the pen, and the inner wall and the gear rotation of mounting panel are connected.
The invention also provides a method for using the device for detecting the current of the frequency converter, which comprises the following steps,
step one: firstly, the detection pen is taken down from the buckle, the detection pen pulls the lead, the lead slowly comes out along the roller, and the fixed block is pressed downwards, so that the fixed block drives the moving block to move downwards, the telescopic conductive pen core moves downwards, the compression spring is driven to compress, the compression spring drives the extrusion block, and the extrusion block moves downwards to drive the metal probe to move outwards of the detection pen;
step two: then when the extrusion block moves to the inside of the limiting block, the extrusion block extrudes the bulge, so that the reset spring compresses the extrusion limiting rod, the limiting rod moves to the outside of the movable groove, the extrusion block drives the telescopic conductive pen core to move downwards, and the metal probe moves out of the detection pen;
step three: then the fixing block moves downwards, and simultaneously, the first rack moves downwards, the first rack moves to drive the gear to rotate, and the gear is meshed with the second rack, so that the second rack is driven to move upwards, the protective sleeve is driven to move upwards, when the first rack moves to the top of the protective sleeve to be spliced with the slot, the fixing block is fixed, at the moment, the protective sleeve completely exposes the metal probe, and the metal probe is detached and replaced;
step four: then starting a detection device to detect the position to be detected of a detection pen according to the rotation of the current indicating needle, detecting and observing the condition of the iron needle, and recording a required numerical value according to the rising condition of the iron needle;
step five: and finally, after the detection is finished, the fixing block is moved upwards, the telescopic conductive pen core is driven to move to the inside of the detection pen under the action of the compression spring, so that the metal probe moves to the original position, and simultaneously, the fixing block is moved upwards to separate the first rack from the slot, and the protective sleeve is driven to return to the original position to protect the probe of the metal probe.
The beneficial effects of the invention are as follows:
1. through flexible conductive refill, adjusting device, metal probe and the cooperation of detecting pen use, make flexible conductive refill flexible through adjusting device to remove the outside of detecting pen completely with metal probe, thereby be convenient for change metal probe, prevent long-time use, the easy accumulation oxide layer in surface, metal probe's sensitivity decline leads to the problem that is unfavorable for detecting.
2. Through flexible electrically conductive refill, metal probe, detection pen, adjusting device, protective sheath and mobile device's cooperation use, drive adjusting device and protective sheath through mobile device and remove, be convenient for metal probe detects, when detecting pen and not use, drive the protective sheath through mobile device and remove, be convenient for through the protection of protective sheath to metal probe head, prevent metal probe damage.
Drawings
FIG. 1 shows a schematic overall structure of an embodiment of the present invention;
FIG. 2 shows a side view of the entirety of an embodiment of the present invention;
FIG. 3 shows an internal structural diagram of a test pen according to an embodiment of the present invention;
FIG. 4 illustrates a front view of a mobile device according to an embodiment of the present invention;
FIG. 5 shows a block diagram of a mobile device according to an embodiment of the invention;
FIG. 6 shows a block diagram of an embodiment of the invention;
fig. 7 shows a method flow diagram of an embodiment of the invention.
In the figure: 1. a detection device housing; 2. an iron needle; 3. a conductive metal rod; 4. moving the adjusting block; 5. a conductive metal sheet; 6. a support rod; 7. a metal coil; 8. a housing; 9. a detection pen; 10. a metal probe; 11. a telescopic conductive pen core; 12. an adjusting device; 121. a moving block; 122. a compression spring; 123. extruding a block; 124. a limiting block; 125. a movable groove; 126. a protrusion; 127. a return spring; 128. a limit rod; 13. a protective sleeve; 14. a mobile device; 141. a fixed block; 142. a first rack; 143. a gear; 144. a second rack; 155. a chute; 15. a wire; 16. and (5) a buckle.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments.
The invention provides a frequency converter current detection device, as shown in fig. 1-3, a detection device shell 1 is provided, a plurality of cavities are arranged at the inner bottom of the detection device shell 1, a steel needle 2 is inserted in each cavity, a conductive metal rod 3 is arranged above the steel needle 2 in each detection device shell 1, a movable adjusting block 4 is sleeved on each conductive metal rod 3, a conductive metal sheet 5 is arranged on the upper side surface of each movable adjusting block 4, each conductive metal sheet 5 is electrically connected with each conductive metal rod 3, a supporting rod 6 is arranged above each conductive metal rod 6 in each detection device shell 1, a metal coil 7 is arranged on each supporting rod 6, a shell 8 is symmetrically arranged on the upper inner side surface of each detection device shell 1, a detection pen 9 is arranged on the outer side surface of each detection device shell 1, a wire 15 of each detection pen 9 is electrically connected with each metal coil 7 in a penetrating manner sequentially through the detection device shell 1 and the shell 8, buckles 16 are fixedly connected to the outer surfaces of two sides of each detection pen 9, a metal probe 10 is arranged inside the bottom end of each detection pen 9, a telescopic conductive pen 11 is arranged on the top of each metal probe 10, a telescopic pen 11 is arranged on the outer surface of each telescopic pen 11, a shell 12 is provided with a shell, a shell 12 is symmetrically arranged on the outer surface of each telescopic pen is provided with a detection pen 13, and a detection pen 13 is arranged on the bottom of each detection pen 9, and a detection pen is provided with a detection device 13.
The detection pen 9 is taken down from the buckle 16, the moving device 14 is pressed downwards, the moving device 14 drives the adjusting device 12 to move downwards, the telescopic conductive pen core 11 moves towards the outside of the detection pen 9, when the telescopic conductive pen core 11 drives the metal probe 10 at the bottom to completely move out of the outside of the detection pen 9, meanwhile, the moving device 14 drives the protective sleeve 13 to move towards the upper side of the detection pen 9, the bottom of the detection pen 9 is completely exposed, the metal probe 10 is convenient to replace, the frequency converter is started after replacement is completed, the metal probe 10 is aligned to a place to be detected according to rotation of the current indicating needle, and the value of current change is recorded according to the rising condition of the iron needle 2.
As shown in fig. 5-6, the adjusting device 12 includes a moving block 121, an inner wall of the moving block 121 is movably sleeved with an outer surface of the telescopic conductive pen core 11, a compression spring 122 is fixedly connected to the bottom of the moving block 121, an extrusion block 123 is fixedly connected to the bottom of the compression spring 122, two sides of the extrusion block 123 are inclined planes, a limiting block 124 is arranged at the bottom of the extrusion block 123, one end of the compression spring 122 is fixedly connected with the moving block 121, the other end of the compression spring is fixedly connected with the extrusion block 123, and two sides of the limiting block 124 are fixedly connected with the inner wall of the through groove.
Through the removal of movable block 121 for flexible conductive lead 11 drives metal probe 10 and moves down, thereby makes compression spring 122 compress, compression spring 122 compression promotes extrusion piece 123, makes extrusion piece 123 drive flexible conductive lead 11 to the outside removal of detection pen 9, when metal probe 10 from moving out the outside of detection pen 9 completely, dismantle metal probe 10 from flexible conductive lead 11, change, prevent to use for a long time and lead to the problem that metal probe 10 probe sensitivity decline is difficult to detect.
As shown in fig. 3, 5 and 6, the middle part of the limiting block 124 is provided with a groove, the bottom end of the telescopic conductive pen core 11 passes through the groove, both sides of the groove are provided with movable grooves 125, the movable grooves 125 are movably connected with protrusions 126, the protrusions 126 are attached to the outer surface of the telescopic conductive pen core 11, one side of each protrusion 126 is fixedly connected with a reset spring 127, one side of each reset spring 127 is fixedly connected with a limiting rod 128, both sides of the limiting block 124 are provided with movable grooves 125, and the inner walls of both sides of the limiting rod 128 and the inner sides of the movable grooves 125 are movably connected.
When the extrusion block 123 moves downwards to the inside of the limiting block 124, as the two sides of the extrusion block 123 are inclined planes, the extrusion block 123 moves downwards to extrude the protrusions 126, so that the protrusions 126 move towards the inside of the movable groove 125, the reset spring 127 is compressed, the limiting rod 128 is extruded to enable the limiting rod 128 to move towards the outside of the movable groove 125, the protrusions 126 do not limit the telescopic conductive pen core 11 any more, the telescopic conductive pen core 11 is enabled to drive the metal probe 10 to move out of the bottom of the detection pen 9 while the extrusion block 123 moves conveniently.
As shown in fig. 4-5, the moving device 14 includes a fixed block 141, one side of the fixed block 141 is fixedly connected with the moving block 121, the bottom of the fixed block 141 is fixedly connected with a first rack 142, the middle of the first rack 142 is meshed with a gear 143, one side of the gear 143 is meshed with a second rack 144, and the top of the second rack 144 is fixedly connected with the protective sleeve 13.
Pressing down the movable fixed block 141 makes the fixed block 141 drive the first rack 142 to move downwards, the gear 143 to which the first rack 142 moves rotates, and because the gear 143 is meshed with the second rack 144, the first rack 142 moves downwards and the second rack 144 moves upwards, the first rack 142 moves upwards to drive the protective sleeve 13 to move upwards, so that the metal probe 10 is exposed, the metal probe 10 is convenient to detect, after detection, the fixed block 141 moves upwards, the first rack 142 moves upwards, the second rack 144 drives the protective sleeve 13 to move downwards, the protective sleeve 13 protects the metal probe 10, and the needle is prevented from damaging when the metal probe 10 is not used.
As shown in fig. 3-5, the protective sleeve 13 is located outside the metal probe 10, the top of the protective sleeve 13 is provided with a slot, the inside of the slot is spliced with the bottom of the first rack 142, the first rack 142 and the second rack 144 are located outside the detection pen 9, the outer surface of the detection pen 9 is provided with a sliding groove 155, the outer surface of the fixing block 141 is slidably connected with the sliding groove 155, the lower part of the sliding groove 155 is fixedly connected with a mounting plate located on the outer surface of the detection pen 9, and the inner wall of the mounting plate is rotationally connected with the gear 143.
The fixed block 141 moves down in the spout 155 and takes first rack 142 to move down for gear 143 rotates, the second rack 144 in gear 143 area moves up and makes protective sheath 13 upwards move, expose metal probe 10, be convenient for detect, simultaneously, fixed block 141 moves down, because fixed block 141 and movable block 121 fixed connection, drive movable block 121 and move down, thereby drive flexible electrically conductive refill 11 and move down, make metal probe 10 remove the outside of detecting pen 9, when the bottom of first rack 142 and protective sheath 13 top slot peg graft, fix fixed block 141, make metal probe 10 fix the outside at detecting pen 9, make protective sheath 13 fix the top at detecting pen 9 simultaneously, be convenient for change metal probe 10.
As shown in fig. 7, the present invention also provides a method for using the above-mentioned inverter current detecting device, which comprises the following steps,
step one: firstly, the detection pen 9 is taken down from the buckle 16, the detection pen 9 pulls the lead 15, the lead 15 slowly comes out along the roller, and the moving fixed block 141 is pressed downwards, so that the fixed block 141 drives the moving block 121 to move downwards, the telescopic conductive pen core 11 moves downwards, the compression spring 122 is driven to compress, the compression spring 122 drives the extrusion block 123, and the extrusion block 123 moves downwards to drive the metal probe 10 to move outwards of the detection pen 9;
step two: then when the extrusion block 123 moves to the inside of the limiting block 124, the extrusion block 123 extrudes the bulge 126, the bulge 126 is not attached to the telescopic conductive pen core 11 any more, the bulge 126 moves towards the inside of the movable groove 125, the reset spring 127 compresses the extrusion limiting rod 128, the limiting rod 128 moves to the outside of the movable groove 125, the extrusion block 123 drives the telescopic conductive pen core 11 to move downwards, and the metal probe 10 moves out of the outside of the detection pen 9;
step three: then, when the fixing block 141 moves downwards, the first rack 142 moves to drive the gear 143 to rotate, and as the gear 143 is meshed with the second rack 144, the second rack 144 is driven to move upwards to drive the protective sleeve 13 to move upwards, when the first rack 142 moves to the top of the protective sleeve 13 to be inserted into the slot, the fixing block 141 is fixed, and at the moment, the protective sleeve 13 completely exposes the metal probe 10, and the metal probe 10 is detached and replaced;
step four: finally, starting a frequency converter to detect the position to be detected of the detection pen 9 according to the rotation of the current indicating needle, detecting and observing the condition of the iron needle 2, and recording a required numerical value according to the rising condition of the iron needle 2;
step five: after the detection is finished, the fixing block 141 is moved upwards, the telescopic conductive pen core 11 is driven to move to the inside of the detection pen 9 under the action of the compression spring 122, so that the metal probe 10 moves to the original position, and meanwhile, the fixing block 141 is moved upwards to separate the first rack 142 from the slot, and the protective sleeve 13 is driven to return to the original position, so that the probe of the metal probe 10 is protected.
Working principle: during the use, take down detection pen 9 from buckle 16, detection pen 9 pulling wire 15, wire 15 slowly comes out along the cylinder, press down fixed block 141, make fixed block 141 drive movable block 121 and move down in spout 155, make compression spring 122 compress, compression spring 122 promotes extrusion piece 123, because extrusion piece 123 both sides are the inclined plane, extrusion piece 123 moves extrusion boss 126 to stopper 124 inside, protruding 126 removes extrusion reset spring 127 to movable groove 125's inside, reset spring 127 extrudes gag lever post 128, make gag lever post 128 remove to movable groove 125 outside, make protruding 126 no longer prescribe a limit to flexible electrically conductive refill 11, thereby extrusion piece 123 moves down and drives flexible electrically conductive refill 11 and make metal probe 10 completely remove the outside of detection pen 9, fixed block 141 moves down simultaneously, drive first rack 142 moves down, make gear 143 rotate, because gear 143 and second rack 144 mesh, make second rack 144 upwards move, second rack 144 upwards moves and drives 13 upwards move, when the bottom of first rack 142 and slot 13 remove, 13 make metal probe 10 completely remove flexible electrically conductive refill 11, thereby completely remove metal probe 10 from flexible electrically conductive refill.
After the replacement, start detection device detects the position that needs to detect with detecting pen 9 alignment according to the rotation of electric current pilot pin, examine the condition of observing iron needle 2, can note the numerical value that needs according to iron needle 2 rising condition, after the detection is accomplished, upwards move fixed block 141, drive flexible electrically conductive refill 11 and remove the inside of detecting pen 9 under compression spring 122 for metal probe 10 removes to the normal position, and simultaneously fixed block 141 upwards moves and makes first rack 142 and slot separation, drives protective sheath 13 and returns to the normal position, protects metal probe 10's probe.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting.
Claims (9)
1. A frequency converter current detection device, comprising: the detection device comprises a detection device shell (1), a plurality of cavities are formed in the inner bottom of the detection device shell (1), an iron needle (2) is inserted in the cavities, a conductive metal rod (3) is arranged above the iron needle (2) in the detection device shell (1), a movable adjusting block (4) is sleeved on the conductive metal rod (3), a conductive metal sheet (5) is arranged on the upper side of the movable adjusting block (4), the conductive metal sheet (5) is electrically connected with the conductive metal rod (3), a supporting rod (6) is arranged in the detection device shell (1) and above the conductive metal rod (3), a metal coil (7) is arranged on the supporting rod (6), a shell (8) is symmetrically arranged on the inner upper side of the detection device shell (1), a detection pen (9) is arranged on the outer side of the detection device shell, a metal probe (10) is arranged in the bottom of the detection pen (9), a telescopic conductive pen core (11) is arranged at the top of the metal probe (10), an adjusting device (12) is arranged on the outer surface of the conductive pen core (11), a protective sleeve (13) is arranged at the bottom of the detection pen, the top of the protective sleeve (13) and the outer surface of the detection pen (9) are provided with a moving device (14).
2. The frequency converter current detection device according to claim 1, wherein the detection pen (9) is electrically connected with a wire (15), the wire (15) of the detection pen (9) sequentially penetrates through the detection device shell (1) and the shell (8) to be electrically connected with the metal coil (7), buckles (16) are fixedly connected to the outer surfaces of two sides of the detection device shell (1), and the inner parts of the buckles (16) are clamped with the detection pen (9).
3. The frequency converter current detection device according to claim 1, wherein the adjusting device (12) comprises a moving block (121), the inner wall of the moving block (121) is movably sleeved with the outer surface of the telescopic conductive pen core (11), a compression spring (122) is fixedly connected to the bottom of the moving block (121), an extrusion block (123) is fixedly connected to the bottom of the compression spring (122), both sides of the extrusion block (123) are inclined planes, and a limiting block (124) is arranged at the bottom of the extrusion block (123).
4. A frequency converter current detection device according to claim 3, wherein one end of the compression spring (122) is fixedly connected with the moving block (121), the other end of the compression spring is fixedly connected with the extrusion block (123), and both sides of the limiting block (124) are fixedly connected with the inner wall of the through groove.
5. The frequency converter current detection device according to claim 3, wherein the middle part of stopper (124) is seted up flutedly, flexible conductive core (11)'s bottom passes the recess, movable groove (125) have all been seted up to the both sides of recess, the swing joint of movable groove (125) has protruding (126), protruding (126) are laminated with the surface of flexible conductive core (11), one side fixedly connected with reset spring (127) of protruding (126), one side fixedly connected with gag lever post (128) of reset spring (127), movable groove (125) have all been seted up to both sides and the both sides inner wall that is located detection pen (9) of stopper (124), inside swing joint of gag lever post (128) and movable groove (125).
6. The frequency converter current detection device according to claim 5, wherein the moving device (14) comprises a fixed block (141), one side of the fixed block (141) is fixedly connected with the moving block (121), a first rack (142) is fixedly connected with the bottom of the fixed block (141), a gear (143) is meshed with the middle part of the first rack (142), a second rack (144) is meshed with one side of the gear (143), and the top of the second rack (144) is fixedly connected with the protective sleeve (13).
7. The frequency converter current detection device according to claim 6, wherein the protective sleeve (13) is located at the outer side of the metal probe (10), a slot is formed in the top of the protective sleeve (13), the interior of the slot is spliced with the bottom of the first rack (142), and the first rack (142) and the second rack (144) are located at the outer side of the detection pen (9).
8. The frequency converter current detection device according to claim 6, wherein a sliding groove (155) is formed in the outer surface of the detection pen (9), the outer surface of the fixing block (141) is slidably connected with the sliding groove (155), a mounting plate is fixedly connected to the lower portion of the sliding groove (155) and located on the outer surface of the detection pen (9), and the inner wall of the mounting plate is rotatably connected with the gear (143).
9. A method of using the frequency converter current detection device of any one of claims 1 to 8, characterized in that the method comprises the steps of:
step one: firstly, the detection pen (9) is taken down from the buckle (16), the detection pen (9) pulls the lead (15), the lead (15) slowly comes out along the roller, the fixed block (141) is pressed downwards, the fixed block (141) drives the moving block (121) to move downwards, the telescopic conductive pen core (11) moves downwards, the compression spring (122) is driven to compress, the compression spring (122) drives the extrusion block (123), and the extrusion block (123) moves downwards to drive the metal probe (10) to move outwards of the detection pen (9);
step two: then when the extrusion block (123) moves to the inside of the limiting block (124), the extrusion block (123) extrudes the bulge (126) so that the reset spring (127) compresses the extrusion limiting rod (128) to enable the limiting rod (128) to move to the outside of the movable groove (125), and therefore the extrusion block (123) drives the telescopic conductive pen core (11) to move downwards so that the metal probe (10) moves out of the outside of the detection pen (9);
step three: then the fixing block (141) moves downwards, the first rack (142) moves to drive the gear (143) to rotate, the gear (143) is meshed with the second rack (144) to drive the second rack (144) to move upwards, the protective sleeve (13) is driven to move upwards, when the first rack (142) moves to the top of the protective sleeve (13) to be spliced with the slot, the fixing block (141) is fixed, and at the moment, the protective sleeve (13) completely exposes the metal probe (10) to detach and replace the metal probe (10);
step four: then starting a detection device to detect the position to be detected of a detection pen (9) according to the rotation of the current indicating needle, detecting and observing the condition of the iron needle (2), and recording a required numerical value according to the rising condition of the iron needle (2);
step five: after the detection is finished, the fixing block (141) is moved upwards, the telescopic conductive pen core (11) is driven to move to the inside of the detection pen (9) under the action of the compression spring (122), the metal probe (10) moves to the original position, and meanwhile, the fixing block (141) is moved upwards to separate the first rack (142) from the slot, and the protective sleeve (13) is driven to return to the original position to protect the probe of the metal probe (10).
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| CN202311233538.2A CN117214491B (en) | 2023-09-22 | 2023-09-22 | Frequency converter current detection device and detection method |
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Denomination of invention: A frequency converter current detection device and detection method Granted publication date: 20240209 Pledgee: Laiwu branch of China Postal Savings Bank Co.,Ltd. Pledgor: SHANDONG LIANCHUANGGAOKE AUTOMATION CO.,LTD. Registration number: Y2024980012430 |