Current sensor calibration equipment

Abstract

The present application discloses a current sensor calibration device, which relates to the field of current sensor technology. The device comprises a frame, a lifting member, a lifting plate and a lifting platform are provided in the frame, a first clamp is provided on the lifting platform, a mounting plate is detachably fixedly provided on the lifting platform through a quick release mechanism, a second clamp is provided on the mounting plate, a connecting plug is provided on the lifting platform, a detection mechanism is provided in the frame, and a connecting socket is provided in the frame. When calibrating the current sensor, the present application clamps multiple current sensors in the second clamp, places the mounting plate on the lifting platform, and uses the first clamp to clamp multiple current sensors. The lifting member drives the lifting platform to move upward through the lifting plate, and the lifting platform drives multiple connecting plugs to be inserted into the connecting sockets. The detection mechanism can measure and calibrate multiple current sensors at the same time, thereby greatly improving the calibration efficiency of the current sensor.

Description

Technical Field

[0001] The present application relates to the technical field of current sensors, and in particular to a current sensor calibration device. Background Art

[0002] Electronic control products use coreless current sensors. If these sensors are not calibrated before assembly, they cannot accurately collect current. After the entire unit is assembled, the current sensor needs to be calibrated before the burn-in test.

[0003] The basic principle of current sensor calibration is to simulate the actual working conditions of the vehicle, input the known measured quantity (i.e., standard quantity) into the sensor to be calibrated, and obtain the output of the sensor at the same time. The obtained sensor input and output are processed and compared to obtain a series of calibration curves that characterize the corresponding relationship between the two, and then obtain the actual measured results of the sensor performance indicators.

[0004] During calibration, current sensors must be connected to a circuit, then measured and calibrated using a test instrument. Traditional manual calibration testing requires wiring the current sensor, and only one current sensor can be measured and calibrated at a time, resulting in low calibration efficiency. Summary of the Invention

[0005] In order to improve the calibration efficiency of a current sensor, the present application provides a current sensor calibration device.

[0006] The current sensor calibration device provided in this application adopts the following technical solution:

[0007] A current sensor calibration device includes a frame, a lifting member is provided in the frame, a lifting plate connected to the lifting end of the lifting member is provided in the frame, a lifting platform is placed in the frame above the lifting plate, a first clamp is provided on the lifting platform, a mounting plate is detachably fixed on the lifting platform through a quick release mechanism, a second clamp is provided on the mounting plate, a plurality of current sensors are clamped and fixed in the first clamp and the second clamp, a plurality of connecting plugs electrically connected to the plurality of current sensors in the first clamp are provided on the lifting platform, a detection mechanism is provided in the frame, a connecting socket electrically connected to the detection mechanism is provided in the frame, and the connecting socket is located directly above the plurality of connecting plugs.

[0008] By adopting the above technical solution, when calibrating the current sensor, first clamp and fix one end of the multiple current sensors in the second clamp, then place the mounting plate on the lifting platform, use the first clamp to clamp and fix the other end of the multiple current sensors, use the quick release mechanism to lock the mounting plate, and then the lifting member drives the lifting platform to move upward through the lifting plate, and the lifting platform drives multiple connecting plugs to be inserted into the connecting sockets to complete the wiring of multiple current sensors. At this time, the detection mechanism can measure and calibrate multiple current sensors at the same time, thereby greatly improving the calibration efficiency of the current sensor.

[0009] Preferably, the second clamp includes a second clamp seat and a second clamping plate, the second clamp seat is fixedly set on the mounting plate, one end of the current sensor is placed on the second clamp seat, the second clamping plate is detachably fixedly set on the second clamp seat and clamps and fixes one end of the current sensor, and the first clamp includes a first clamp seat and a first clamping plate, the first clamp seat is fixedly set on the lifting platform, the other end of the current sensor is placed on the first clamp seat, the first clamping plate is detachably fixedly set on the first clamp seat and clamps and fixes the other end of the current sensor.

[0010] By adopting the above technical solution, the second clamping plate and the second clamping seat can be used to quickly clamp and fix one end of the current sensor, and the first clamping plate and the second clamping seat can be used to quickly clamp and fix the other end of the current sensor, thereby facilitating quick assembly and disassembly of the current sensor.

[0011] Preferably, the quick-release mechanism includes a positioning seat, a latch and a plurality of positioning pins, the plurality of positioning pins are fixedly arranged on the top wall of the lifting platform and adapted to be inserted into the bottom wall of the mounting plate, the positioning seat is fixedly arranged on the lifting platform, the latch is adjustably arranged in the positioning seat along the horizontal direction, and the end of the latch is adapted to be inserted into the side wall of the mounting plate.

[0012] By adopting the above technical solution, the mounting plate is placed on the lifting platform, and multiple positioning pins on the lifting platform are inserted into the bottom wall of the mounting plate to fix the mounting plate in the horizontal direction. The pins are then adjusted so that the ends of the pins are inserted into the side walls of the mounting plate to fix the mounting plate in the vertical direction, thereby enabling the mounting plate to be quickly fixed on the lifting platform.

[0013] Preferably, a positioning plate is fixedly provided in the frame, the top end of the connecting socket is connected to the bottom wall of the positioning plate through a plurality of spring guide rods, the connecting socket is slidably provided below the positioning plate in the vertical direction, a support frame is fixedly provided on the lifting platform, a plurality of the connecting sockets are provided on the support frame, a plurality of first plug rods are fixedly provided on the bottom wall of the connecting socket, and the first plug rods are adapted to be plugged into the top wall of the support frame in the vertical direction.

[0014] By adopting the above technical solution, the lifting platform drives the connecting plug to move upward through the support frame. During the upward movement of the support frame, the first insertion rod is inserted into the top wall of the support plate, thereby guiding the movement of the connecting plug, so that the connecting plug can be accurately inserted into the connecting socket. When the connecting plug is inserted into the connecting socket, the support frame pushes the connecting socket to slide upward, and the spring guide rod guides the movement of the connecting socket and applies elastic force to the connecting socket, so that the connecting plug can be tightly inserted into the connecting socket.

[0015] Preferably, a bracket is fixedly provided in the frame, the lifting platform is placed on the bracket, a plurality of second insertion rods are fixedly provided on the top wall of the lifting plate, and the second insertion rods are vertically inserted into the bottom wall of the lifting platform.

[0016] By adopting the above technical solution, the lifting plate drives the second insertion rod to move upward, and the second insertion rod is inserted into the bottom wall of the lifting platform, so that the lifting platform can be positioned. When the lifting plate moves downward, the lifting platform is placed on the bracket, which facilitates the removal of the lifting platform from the frame.

[0017] Preferably, a connecting plate is fixedly provided in the frame, the lifting member is fixedly provided on the bottom wall of the connecting plate, the lifting end of the lifting member passes through the connecting plate and is fixedly connected to the bottom wall of the lifting plate, a plurality of guide rods are provided in the lifting plate for sliding along the vertical direction, the top end of the guide rod is fixedly connected to the bottom wall of the lifting plate, and the bottom ends of the plurality of guide rods are fixedly connected by a connecting rod.

[0018] By adopting the above technical solution, the lifting member drives the lifting plate to move up and down, and the lifting plate drives multiple guide rods to slide in the connecting plate. The guide rods guide the movement of the lifting plate, making the lifting movement of the lifting plate more stable. At the same time, the connecting rods fix the multiple guide rods, making the lifting rods more stable, thereby further improving the movement stability of the lifting plate.

[0019] Preferably, the positioning seat includes a support block fixedly provided on the lifting platform and a locking block fixedly provided on the support block, the mounting plate is placed on the support block, the latch is slidably provided in the locking block, a first elastic member is provided in the locking block for pushing the latch to move toward the mounting plate, a trigger rod is provided in the support block for sliding along the vertical direction, the top end of the trigger rod extends out of the support block, a first locking assembly is provided in the support block and the locking block, which is transmission-connected to the trigger rod and used to lock the latch, a second locking assembly is provided in the locking block for locking the latch, a transmission assembly is provided in the transmission assembly, and the transmission assembly is transmission-connected to the first locking assembly and the second locking assembly.

[0020] By adopting the above technical solution, when the mounting plate is not placed on the supporting block, the first locking assembly and the second locking assembly lock the latch so that the end of the latch is located in the locking block. When the mounting plate is placed on the supporting block, the mounting plate drives the trigger rod to move downward, and the trigger rod drives the first locking assembly to unlock. The first locking assembly drives the second locking assembly to unlock through the transmission assembly, and the first elastic member pushes the latch to slide and insert into the side wall of the mounting plate, thereby automatically positioning the mounting plate; pulling the latch outward, the second locking assembly first locks the latch so that the end of the latch is located in the locking block, and then the mounting plate is removed from the supporting block, and the first locking assembly locks the latch again and pushes the trigger rod to move upward and reset, thereby facilitating automatic positioning of the mounting plate again.

[0021] Preferably, the first locking assembly includes a first sliding bar, a second sliding bar, a connecting ring, a locking block and a second elastic member, the first sliding bar is slidably arranged in the supporting block along the horizontal direction, one end of the first sliding bar and the bottom end of the trigger rod are both wedge-shaped and abut against each other, the second sliding bar is slidably arranged in the locking block along the vertical direction, the other end of the first sliding bar and the bottom end of the second sliding bar are both wedge-shaped and abut against each other, the second elastic member is arranged in the locking block and is used to push the second sliding bar to slide downward, the connecting ring is arranged at the top end of the second sliding bar, the latch slides through the connecting ring, the locking block is fixedly arranged at the top end of the inner side wall of the connecting ring, the top of the outer surface of the latch is provided with a first locking groove, and the locking block is slidably inserted in the first locking groove.

[0022] By adopting the above technical solution, when the mounting plate is not placed on the supporting block, the second elastic member drives the connecting ring to move downward through the second sliding rod, the second sliding rod drives the trigger rod to slide upward through the first sliding rod, and the second sliding rod drives the locking block to move downward through the connecting ring and be inserted into the first locking groove, thereby locking the latch; when the mounting plate is placed on the supporting block, the trigger rod slides downward and drives the connecting ring to slide upward through the first sliding rod and the second sliding rod, and the connecting ring drives the locking block to slide upward out of the first locking groove, thereby unlocking the latch.

[0023] Preferably, the transmission assembly includes a first rack, a second rack, a first gear and a second gear, the first rack is slidably arranged in the locking block along the vertical direction, the bottom end of the first rack is fixedly connected to the top end of the connecting ring, the second rack is slidably arranged in the locking block along the horizontal direction, the first gear is rotatably arranged in the locking block and meshes with the first rack and the second rack, the second gear is rotatably arranged in the locking block and meshes with the bottom wall of the second rack, the second locking assembly is slidably arranged in the locking block along the vertical direction and meshes with the second gear, a second lock groove is opened at the top of the outer surface of the latch, and the second locking assembly is slidably inserted in the second lock groove.

[0024] By adopting the above technical solution, when the connecting ring drives the locking block to slide upward, the connecting ring drives the first rack to slide upward, the first rack drives the second rack to slide through the first gear, and the second rack drives the second locking assembly to slide upward through the second gear. The second locking assembly slides out of the second lock slot, and the pin can be unlocked.

[0025] Preferably, the second locking assembly includes a locking rod, a transmission rack, a third elastic member and a fourth elastic member, the locking rod is slidably arranged in the locking block along the vertical direction, the bottom end of the locking rod is slidably inserted in the second locking groove, the locking rod is provided with a sliding groove on the side wall close to the second gear, the third elastic member is arranged in the sliding groove, the transmission rack is slidably arranged in the sliding groove along the horizontal direction, one side of the transmission rack abuts the third elastic member, and the other side is meshed with the second gear, the fourth elastic member is arranged in the locking block, the fourth elastic member is located above the locking rod and is used to push the locking rod to move downward; the locking block rotates The third gear is driven by the third toothed wheel, and the transmission rack is driven by the third toothed wheel to move in a direction opposite to the first gear and the transmission rack is driven by the third toothed wheel to move in a direction opposite to the first gear.

[0026] When the latch is pulled outward, when the latch drives the second lock slot to move below the lock rod, the fourth elastic member pushes the lock rod to insert into the second lock slot, and the latch can be locked again.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. Using the first fixture and the second fixture, when calibrating the current sensor, first clamp and fix one end of the multiple current sensors in the second fixture, then place the mounting plate on the lifting platform, use the first fixture to clamp and fix the other ends of the multiple current sensors, and use the quick release mechanism to lock the mounting plate. Then, the lifting member drives the lifting platform to move upward through the lifting plate, and the lifting platform drives multiple connection plugs to be inserted into the connection sockets to complete the wiring of multiple current sensors. At this time, the detection mechanism can measure and calibrate multiple current sensors simultaneously, thereby greatly improving the calibration efficiency of the current sensor;

[0029] 2. Using the quick-release mechanism, place the mounting plate on the lifting platform. Insert the multiple positioning pins on the lifting platform into the bottom wall of the mounting plate to secure the mounting plate horizontally. Adjust the latches so that the ends of the latches are inserted into the side walls of the mounting plate to secure the mounting plate vertically. This allows the mounting plate to be quickly secured to the lifting platform.

[0030] 3. Through the guide rod, the lifting member drives the lifting plate to move up and down, and the lifting plate drives multiple guide rods to slide in the connecting plate. The guide rods guide the movement of the lifting plate, making the lifting and moving of the lifting plate more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall structure of the current sensor calibration device in Example 1 of the present application;

[0032] Figure 2 This is a side cross-sectional view of the current sensor calibration device according to Example 1 of the present application;

[0033] Figure 3 This is an exploded view of the current sensor calibration device in Example 1 of the present application, highlighting the partial structure of the second insertion rod;

[0034] Figure 4 This is an exploded view of the current sensor calibration device in Example 1 of the present application to highlight a partial structure of the quick-release mechanism;

[0035] Figure 5 This is a schematic diagram of a portion of the structure of the current sensor calibration device in Example 2 of the present application, highlighting the positioning seat;

[0036] Figure 6 This is a partial structural cross-sectional view of the current sensor calibration device in Example 2 of the present application, highlighting the internal structure of the positioning seat;

[0037] Figure 7 This is a partial structural diagram of the current sensor calibration device in Example 2 of the present application, highlighting the first locking assembly and the transmission assembly;

[0038] Figure 8 This is an exploded cross-sectional view of a current sensor calibration device in Example 2 of the present application, highlighting the partial structure of the first locking slot and the second locking slot;

[0039] Figure 9 This is a cross-sectional view of a portion of the structure of the current sensor calibration device in Example 2 of the present application, highlighting the transmission rack;

[0040] Figure 10 This is a cross-sectional view of a portion of the results of the current sensor calibration device in Example 2 of the present application, highlighting the third rack;

[0041] Figure 11 For this application Figure 10 Enlarged schematic diagram of point A in the middle.

[0042] 1. Frame; 2. Lifting member; 3. Lifting plate; 4. Lifting platform; 5. First clamp; 51. First clamp seat; 52. First clamp plate; 6. Mounting plate; 7. Second clamp; 71. Second clamp seat; 72. Second clamp plate; 8. Quick release mechanism; 81. Positioning seat; 811. Support block; 812. Locking block; 82. Pin; 83. Positioning pin; 9. Connecting plug; 11. Detection mechanism; 12. Connecting socket; 13. Positioning plate; 14. Spring guide rod; 15. Support frame; 16. First plug rod; 17. Bracket; 18. Second plug rod; 19. Connecting plate; 20. Guide rod; 21. Connecting rod; 22. First elastic member; 23. Trigger rod; 24. First locking member Component; 241, first slide bar; 242, second slide bar; 243, connecting ring; 244, locking block; 245, second elastic member; 25, transmission component; 251, first rack; 252, second rack; 253, first gear; 254, second gear; 26, second locking component; 261, locking rod; 262, transmission rack; 263, third elastic member; 264, fourth elastic member; 27, first locking groove; 28, second locking groove; 29, sliding groove; 30, third gear; 31, third rack; 32, rolling groove; 33, roller; 34, paddle; 35, pull ring; 36, first push ring; 37, second push ring; 38, waist-shaped hole; 39, fourth rack; 40, inclined surface. DETAILED DESCRIPTION

[0043] The following is combined with Figures 1-11 This application is described in further detail.

[0044] An embodiment of the present application discloses a current sensor calibration device.

[0045] Example 1:

[0046] Reference Figure 1 and Figure 2A current sensor calibration device includes a frame 1, a bracket 17 fixedly mounted in the frame 1, a lifting platform 4 placed on the bracket 17, a connecting plate 19 fixedly mounted in the frame 1 below the lifting platform 4, a lifting member 2 fixedly mounted on the bottom wall of the connecting plate 19, and a top end of the lifting member 2 passing through the connecting plate 19. In the present application, the lifting member 2 can be optionally implemented as a hydraulic cylinder.

[0047] Reference Figure 2 and Figure 3 A lifting plate 3 is fixedly mounted on the top of the lifting member 2. The lifting plate 3 is located directly below the lifting platform 4. Second insertion rods 18 are fixedly mounted vertically at both diagonally opposite ends of the lifting plate 3. The second insertion rods 18 are adapted to be inserted into the lifting platform 4. Four guide rods 20 are fixedly mounted on the bottom wall of the lifting plate 3. The guide rods 20 slide vertically through the connecting plate 19, and the bottom ends of every two guide rods 20 are fixedly connected to a connecting rod 21.

[0048] The lifting member 2 drives the lifting plate 3 upward, and the lifting plate 3 drives the second insertion rod 18 to be inserted into the lifting platform 4, so that the lifting plate 3 can drive the lifting platform 4 upward. The guide rod 20 guides the movement of the lifting plate 3, and the second insertion rod 18 positions the lifting platform 4 so that the lifting platform 4 does not deviate when moving upward.

[0049] Reference Figure 3 and Figure 4 The mounting plate 6 is detachably fixedly mounted on the lifting platform 4 via a quick-release mechanism 8. Specifically, the quick-release mechanism 8 includes two positioning seats 81, a latch 82, and a positioning pin 83. The two positioning pins 83 are fixedly mounted at both ends of one diagonally opposite corner of the lifting platform 4, and the two positioning seats 81 are fixedly mounted at both ends of the other diagonally opposite corner of the lifting platform 4. The two latches 82 are horizontally threadedly mounted in the two positioning seats 81, and the ends of the latches 82 are fixedly mounted with the paddles 34.

[0050] When the mounting plate 6 is placed on the lifting platform 4, the two positioning pins 83 are inserted into the diagonally opposite corners of the mounting plate 6 in the vertical direction, and the two positioning pins 83 position the mounting plate 6 in the horizontal direction. Then, the latch 82 is rotated by the paddle 34, and the latch 82 gradually inserts into the side wall of the mounting plate 6 during the rotation process. The two latches 82 position the mounting plate 6 in the vertical direction, thereby firmly fixing the mounting plate 6 on the lifting platform 4.

[0051] Mounting plate 6 is equipped with a second clamp 7, comprising a second clamping seat 71 and a second clamping plate 72. Second clamping seat 71 is fixedly mounted on mounting plate 6, while second clamping plate 72 is removably fixed to second clamping seat 71 via bolts. A first clamp 5 is mounted on lifting platform 4. First clamp 5 comprises a first clamping seat 51 and a first clamping plate 52. First clamping seat 51 is fixedly mounted on lifting platform 4, while first clamping plate 52 is removably fixed to first clamping seat 51 via bolts. The first clamp 5 and second clamp 7 are capable of clamping and securing multiple current sensors.

[0052] Clamp and fix one end of multiple current sensors in the second clamp 7, place the mounting plate 6 on the lifting platform 4, use the first clamp 5 to clamp and fix the other end of the multiple current sensors, use the quick release mechanism 8 to lock the mounting plate 6, and then the multiple current sensors can be fixed on the lifting platform 4.

[0053] Reference Figure 1 、 Figure 2 and Figure 3 A support frame 15 is fixedly mounted on the lifting platform 4. A plurality of connecting plugs 9 are fixedly mounted on the top of the support frame 15. The plurality of connecting plugs 9 are electrically connected to the plurality of current sensors in the first fixture 5. A detection mechanism 11 is fixedly mounted on the upper part of the frame 1. A positioning plate 13 is fixedly mounted on the bottom of the detection mechanism 11. A connecting socket 12 is lifted and mounted on the bottom wall of the positioning plate 13 via two spring guide rods 14. The connecting socket 12 is electrically connected to the detection mechanism 11 and is located directly above the plurality of connecting plugs 9. A first insertion rod 16 is fixedly mounted on both ends of the bottom wall of the connecting socket 12 along its own length direction. The first insertion rod 16 is slidably inserted into the top wall of the support frame 15.

[0054] The implementation principle of the current sensor calibration device in Example 1 of the present application is as follows: when calibrating the current sensors, first clamp and fix one end of the multiple current sensors in the second clamp 7, place the mounting plate 6 on the lifting platform 4, then use the first clamp 5 to clamp and fix the multiple current sensors, and finally rotate the pin 82 to fix the mounting plate 6. The lifting member 2 drives the lifting plate 3 to move upward, and the lifting plate 3 drives the lifting platform 4 to move upward. The lifting platform 4 drives the multiple connection plugs 9 to be inserted into the connection socket 12 through the support frame 15, and the wiring of the multiple current sensors can be completed. At this time, the detection mechanism 11 can measure and calibrate the multiple current sensors at the same time, thereby greatly improving the calibration efficiency of the current sensors.

[0055] Example 2:

[0056] Reference Figure 5The difference between this embodiment and embodiment 1 is that the positioning seat 81 includes a support block 811 and a locking block 812. The support block 811 is fixedly installed on the lifting platform 4. The locking block 812 is integrally formed on the top of the support block 811 away from the mounting plate 6. The pin 82 is slidably installed in the locking block 812 along the horizontal direction, and a pull ring 35 is fixedly installed on the end of the pin 82 away from the mounting plate 6.

[0057] Reference Figure 6 A first push ring 36 is fixedly mounted on the outer side wall of the latch 82, and a first elastic member 22 is sleeved on the latch 82. The first elastic member 22 is located in the locking block 812, and the end of the first elastic member 22 abuts against the side wall of the first push ring 36 close to the pull ring 35. In the present application, the first elastic member 22 can be a spring.

[0058] Reference Figure 6 、 Figure 7 and Figure 8 A trigger rod 23 is vertically slidably mounted within the support block 811. A first locking assembly 24 for locking the latch 82 is mounted within the support block 811 and the locking block 812. The first locking assembly 24 is in transmission connection with the trigger rod 23. A transmission assembly 25 and a second locking assembly 26 are mounted within the locking block 812. The transmission assembly 25 is in transmission connection with the first locking assembly 24 and the second locking assembly 26, and the second locking assembly 26 locks the latch 82.

[0059] The first locking assembly 24 includes a first slide bar 241, a second slide bar 242, a connecting ring 243, a locking block 244, and a second elastic member 245. The first slide bar 241 slides horizontally within the support block 811 and is positioned below the trigger bar 23. One end of the first slide bar 241 and the bottom end of the trigger bar 23 are both wedge-shaped and abut against each other. The second slide bar 242 slides vertically within the locking block 812 and is positioned above the first slide bar 241. The other end of the first slide bar 241 and the bottom end of the second slide bar 242 are both wedge-shaped and abut against each other.

[0060] A connecting ring 243 is fixedly mounted on the top of the second slide bar 242. A waist-shaped hole 38 is formed in the connecting ring 243, through which the latch 82 slides. A first locking slot 27 is defined at the top of the outer wall of the latch 82. A locking block 244 is fixedly mounted on the connecting ring 243 at the top of the waist-shaped hole 38. A second push ring 37 is fixedly mounted on the outer wall of the second slide bar 242. A second elastic member 245 is sleeved on the second slide bar 242, with the bottom end of the second elastic member 245 abutting against the top wall of the second push ring 37. In this application, the second elastic member 245 can optionally be a spring.

[0061] The pull ring 35 pulls the latch 82 away from the mounting plate 6, causing the end of the latch 82 near the mounting plate 6 to slide into the locking block 812. The second elastic member 245 drives the second slide bar 242 downward via the second push ring 37. The second slide bar 242 drives the locking block 244 to slide into the first locking groove 27 via the connecting ring 243, allowing the first locking assembly 24 to lock the latch 82. During the downward movement of the second slide bar 242, the first slide bar 241 pushes the trigger rod 23 upward, causing the top end of the trigger rod 23 to extend out of the top wall of the support block 811.

[0062] When the mounting plate 6 is placed on the support block 811, the mounting plate 6 drives the trigger rod 23 to slide downward, and the trigger rod 23 drives the locking block 244 to rise and move out of the first locking groove 27 through the first sliding rod 241, the second sliding rod 242 and the connecting ring 243, thereby unlocking the latch 82. The first elastic member 22 then pushes the latch 82 through the first push ring 36 to move and insert into the side wall of the mounting plate 6, thereby automatically locking the mounting plate 6.

[0063] The transmission assembly 25 includes a first rack 251, a second rack 252, a first gear 253, and a second gear 254. The first rack 251 is fixedly mounted on the top wall of the connecting ring 243 and slides vertically within the locking block 812. The first gear 253 is rotatably mounted within the locking block 812 and meshes with the side wall of the first rack 251 near the pull ring 35. The second rack 252 slides horizontally within the locking block 812. The second gear 254 is rotatably mounted within the locking block 812 and is located on the side of the first gear 253 near the pull ring 35. The first gear 253 and the second gear 254 both mesh with the bottom wall of the second rack 252.

[0064] Reference Figure 7 、 Figure 8 and 9 The second locking assembly 26 includes a locking rod 261, a transmission rack 262, a fourth elastic member 264 and multiple third elastic members 263. A second locking groove 28 is provided at the top of the outer wall of the latch 82 and on the side of the first locking groove 27 close to the pull ring 35. The locking rod 261 is slidably installed in the locking block 812 along the vertical direction, and the bottom end of the locking rod 261 is slidably inserted into the second locking groove 28.

[0065] A slot 29 is defined within the sidewall of the locking rod 261 near the pull ring 35. Multiple third elastic members 263 are mounted within the slot 29 of the locking rod 261. A transmission rack 262 slides horizontally within the slot 29. One side of the transmission rack 262 abuts the multiple third elastic members 263, while the other side meshes with the second gear 254. The top of the teeth of the transmission rack 262 are formed with an inclined surface 40. A fourth elastic member 264 is mounted within the locking block 812 and abuts the top of the locking rod 261. In this application, both the third elastic member 263 and the fourth elastic member 264 may be springs.

[0066] As the connecting ring 243 drives the locking block 244 to slide upward out of the first locking groove 27, the connecting ring 243 drives the first rack 251 to move upward. The first rack 251 drives the second rack 252 to slide via the first gear 253. The second rack 252 drives the transmission rack 262 to slide upward via the second gear 254. The transmission rack 262 drives the locking rod 261 to slide upward, causing the bottom end of the locking rod 261 to slide out of the second locking groove 28. In this way, when the mounting plate 6 is placed on the support block 811, the first locking assembly 24 and the second locking assembly 26 can simultaneously unlock the latch 82.

[0067] Reference Figure 7 、 Figure 10 and Figure 11 The third gear 30 is rotatably mounted within the locking block 812. The rotation axis of the third gear 30 is perpendicular to the rotation axis of the second gear 254. A third rack 31 is slidably mounted within the locking block 812 in a direction parallel to the second rack 252. A fourth rack 39 is fixedly mounted on the side wall of the second rack 252 adjacent to the third rack 31. The adjacent side walls of the fourth rack 39 and the third rack 31 are both meshed with the third gear 30. A roller 33 is rotatably mounted on the end of the third rack 31 adjacent to the transmission rack 262. A rolling groove 32 is vertically defined in the middle of the side wall of the transmission rack 262 that meshes with the second gear 254.

[0068] The implementation principle of Example 2 of the present application is as follows: when the mounting plate 6 is not placed on the support block 811, the first locking assembly 24 and the second locking assembly 26 lock the latch 82. When the mounting plate 6 is placed on the support block 811, the trigger rod 23 drives the locking block 244 to slide upward via the first sliding rod 241, the second sliding rod 242, and the connecting ring 243. The locking block 244 slides out of the first locking groove 27, allowing the first locking assembly 24 to unlock the latch 82. The connecting ring 243 drives the first rack 251 to move upward. The first rack 251 drives the locking rod 261 to move upward via the first gear 253, the second rack 252, the second gear 254, and the transmission rack 262. The bottom end of the locking rod 261 slides out of the second locking groove 28, allowing the second locking assembly 26 to simultaneously unlock the latch 82. After the first locking assembly 24 and the second locking assembly 26 unlock the latch 82, the first elastic member 22 pushes the latch 82 to slide in the locking block 812 through the first push ring 36. The latch 82 slides into the side wall of the mounting plate 6, and the mounting plate 6 can be automatically locked.

[0069] During the upward movement of the first rack 251, the second rack 252 drives the fourth rack 39 to move and drives the third rack 31 to move toward the transmission rack 262 through the third gear 30. When the first locking assembly 24 and the second locking assembly 26 unlock the latch 82, the third rack 31 drives the roller 33 to move into the rolling groove 32 of the transmission rack 262. When the first locking assembly 24 and the second locking assembly 26 unlock the latch 82, the third rack 31 pushes the transmission rack 262 toward the sliding groove 29 through the roller 33. The transmission rack 262 moves to squeeze the third elastic member 263 and disengage from the second gear 254. At this time, the fourth elastic member 264 pushes the locking rod 261 to slide downward, so that the bottom end of the locking rod 261 abuts the top of the outer wall of the latch 82.

[0070] When it is necessary to remove the mounting plate 6, first pull the pull ring 35 outward, and the pull ring 35 drives the latch 82 to slide out of the mounting plate 6. When the latch 82 drives the second lock slot 28 to move below the locking rod 261, the fourth elastic member 264 pushes the locking rod 261 to slide downward and insert into the second lock slot 28, so that the second locking assembly 26 automatically locks the latch 82. At this time, the mounting plate 6 can be removed from the support block 811.

[0071] When the mounting plate 6 is removed, the second elastic member 245 drives the second slide bar 242 downward via the second push ring 37. The second slide bar 242 drives the locking block 244 to slide and insert into the first locking groove 27 via the connecting ring 243, so that the first locking assembly 24 can lock the latch 82. During the descent of the connecting ring 243, the first rack 251 is driven downward by the first rack 251. The first rack 251 drives the second rack 252 to move via the first gear 253. The second rack 252 drives the roller 33 to move out of the rolling groove 32 via the third gear 30 and the third rack 31. At this time, the third elastic member 263 pushes the transmission gear to slide and mesh with the second gear 254 again. The second rack 252 drives the second gear 254 to rotate. Since the locking rod 261 has been inserted downward into the second locking groove 28, and under the action of the rack inclined surface 40 of the transmission rack 262, the second gear 254 will push the transmission rack 262 to slide continuously into the sliding groove 29 when it rotates, so that the transmission gear will not move downward, and thus the transmission assembly 25 will not interfere.

[0072] The above are merely optional embodiments of the present disclosure and are not intended to limit the present disclosure. Those skilled in the art will readily appreciate that the present disclosure may be modified and varied in various ways. Any modifications, equivalent substitutions, improvements, and the like made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

1. A current sensor calibration device, characterized in that: The invention comprises a frame (1), wherein a lifting member (2) is provided in the frame (1), a lifting plate (3) connected to the lifting end of the lifting member (2) is provided in the frame (1), a lifting platform (4) is placed above the lifting plate (3) in the frame (1), a first clamp (5) is provided on the lifting platform (4), a mounting plate (6) is detachably fixed on the lifting platform (4) via a quick-release mechanism (8), a second clamp (7) is provided on the mounting plate (6), a plurality of current sensors are clamped and fixed in the first clamp (5) and the second clamp (7), a plurality of connection plugs (9) electrically connected to the plurality of current sensors in the first clamp (5) are provided on the lifting platform (4), a detection mechanism (11) is provided in the frame (1), a connection socket (12) electrically connected to the detection mechanism (11) is provided in the frame (1), and the connection socket (12) is located directly above the plurality of connection plugs (9); The quick-release mechanism (8) includes a positioning seat (81), a latch (82) and a plurality of positioning pins (83), wherein the plurality of positioning pins (83) are fixedly arranged on the top wall of the lifting platform (4) and are adapted to be inserted into the bottom wall of the mounting plate (6); the positioning seat (81) is fixedly arranged on the lifting platform (4); the latch (82) is adjustable in the horizontal direction and is arranged in the positioning seat (81); and the end of the latch (82) is adapted to be inserted into the side wall of the mounting plate (6); The positioning seat (81) includes a support block (811) fixedly arranged on the lifting platform (4) and a locking block (812) fixedly arranged on the support block (811); the mounting plate (6) is placed on the support block (811); the latch (82) is slidably arranged in the locking block (812); a first elastic member (22) is arranged in the locking block (812) for pushing the latch (82) to move toward the mounting plate (6); a trigger rod (23) is slidably arranged in the support block (811) along the vertical direction. ), the top end of the trigger rod (23) extends out of the support block (811), the support block (811) and the locking block (812) are provided with a first locking assembly (24) which is transmission-connected with the trigger rod (23) and used to lock the latch (82), the locking block (812) is provided with a second locking assembly (26) which is used to lock the latch (82), the locking block (812) is provided with a transmission assembly (25), and the transmission assembly (25) is transmission-connected with the first locking assembly (24) and the second locking assembly (26).

2. The current sensor calibration device according to claim 1, characterized in that: The second clamp (7) comprises a second clamp seat (71) and a second clamping plate (72); the second clamp seat (71) is fixedly arranged on the mounting plate (6); one end of the current sensor is placed on the second clamp seat (71); the second clamping plate (72) is detachably fixedly arranged on the second clamp seat (71) and clamps and fixes one end of the current sensor; the first clamp (5) comprises a first clamp seat (51) and a first clamping plate (52); the first clamp seat (51) is fixedly arranged on the lifting platform (4); the other end of the current sensor is placed on the first clamp seat (51); the first clamping plate (52) is detachably fixedly arranged on the first clamp seat (51) and clamps and fixes the other end of the current sensor.

3. The current sensor calibration device according to claim 1, characterized in that: A positioning plate (13) is fixedly provided in the frame (1), the top end of the connecting socket (12) is connected to the bottom wall of the positioning plate (13) through a plurality of spring guide rods (14), the connecting socket (12) is slidably provided below the positioning plate (13) in the vertical direction, a support frame (15) is fixedly provided on the lifting platform (4), a plurality of the connecting sockets (12) are provided on the support frame (15), a plurality of first plug rods (16) are fixedly provided on the bottom wall of the connecting socket (12), and the first plug rods (16) are adapted and plugged on the top wall of the support frame (15) in the vertical direction.

4. The current sensor calibration device according to claim 1, characterized in that: A bracket (17) is fixedly arranged in the frame (1), the lifting platform (4) is placed on the bracket (17), a plurality of second insertion rods (18) are fixedly arranged on the top wall of the lifting plate (3), and the second insertion rods (18) are plugged into the bottom wall of the lifting platform (4) in a vertical direction.

5. The current sensor calibration device according to claim 1, characterized in that: A connecting plate (19) is fixedly provided in the frame (1), the lifting member (2) is fixedly provided on the bottom wall of the connecting plate (19), the lifting end of the lifting member (2) passes through the connecting plate (19) and is fixedly connected to the bottom wall of the lifting plate (3), a plurality of guide rods (20) are provided in the lifting plate (3) for sliding along the vertical direction, the top ends of the guide rods (20) are fixedly connected to the bottom wall of the lifting plate (3), and the bottom ends of the plurality of guide rods (20) are fixedly connected via a connecting rod (21).

6. The current sensor calibration device according to claim 1, characterized in that: The first locking assembly (24) includes a first slide bar (241), a second slide bar (242), a connecting ring (243), a locking block (244) and a second elastic member (245). The first slide bar (241) is slidably arranged in the support block (811) along the horizontal direction. One end of the first slide bar (241) and the bottom end of the trigger bar (23) are both wedge-shaped and abut against each other. The second slide bar (242) is slidably arranged in the locking block (812) along the vertical direction. The other end of the first slide bar (241) and the second slide bar (243) are in contact with each other. 2) are both configured to have a wedge shape and abut against each other, the second elastic member (245) is disposed in the locking block (812) and is used to push the second slide bar (242) to slide downward, the connecting ring (243) is disposed at the top end of the second slide bar (242), the latch (82) slides through the connecting ring (243), the locking block (244) is fixedly disposed at the top end of the inner side wall of the connecting ring (243), the top end of the outer surface of the latch (82) is provided with a first locking groove (27), and the locking block (244) is slidably inserted into the first locking groove (27).

7. The current sensor calibration device according to claim 6, characterized in that: The transmission assembly (25) includes a first rack (251), a second rack (252), a first gear (253) and a second gear (254), wherein the first rack (251) is slidably arranged in a locking block (812) along a vertical direction, the bottom end of the first rack (251) is fixedly connected to the top end of the connecting ring (243), the second rack (252) is slidably arranged in a locking block (812) along a horizontal direction, and the first gear (253) is rotatably arranged in the locking block (812). 12) and meshed with the first rack (251) and the second rack (252), the second gear (254) is rotatably arranged in the locking block (812) and meshed with the bottom wall of the second rack (252), the second locking component (26) is slidably arranged in the locking block (812) along the vertical direction and meshed with the second gear (254), a second locking groove (28) is provided on the top of the outer surface of the latch (82), and the second locking component (26) is slidably inserted into the second locking groove (28).

8. The current sensor calibration device according to claim 7, characterized in that: The second locking assembly (26) includes a locking rod (261), a transmission rack (262), a third elastic member (263) and a fourth elastic member (264). The locking rod (261) is slidably arranged in the locking block (812) along the vertical direction. The bottom end of the locking rod (261) is slidably inserted into the second locking groove (28). A sliding groove (29) is provided on the side wall of the locking rod (261) close to the second gear (254). The third elastic member (263) is arranged In the slide groove (29), the transmission rack (262) is arranged in the slide groove (29) for sliding in the horizontal direction, one side of the transmission rack (262) abuts against the third elastic member (263), and the other side is engaged with the second gear (254), and the fourth elastic member (264) is arranged in the locking block (812), and the fourth elastic member (264) is located above the locking rod (261) and is used to push the locking rod (261) to move downward; the rotation device in the locking block (812) A third gear (30) is provided which is meshed with the side wall of the second rack (252). A third rack (31) is provided in the locking block (812) so as to slide in the horizontal direction. The third rack (31) is located on the side of the third gear (30) away from the second rack (252) and meshed with the third gear (30). A rolling groove (32) is provided in the middle of the side wall of the transmission rack (262) close to the second gear (254) in the vertical direction. The third rack (31) is close to the transmission rack. A roller (33) is rotatably provided at the end of the rack (262). When the connecting ring (243) drives the locking block (244) to disengage from the first locking groove (27), the second rack (252) drives the third rack (31) to move through the third gear (30). The third rack (31) drives the roller (33) to move into the rolling groove (32) and pushes the transmission rack (262) to move toward the sliding groove (29). The transmission rack (262) moves and disengages from the second gear (254).

Images