CN215728766U

CN215728766U - Current sensor testing device

Info

Publication number: CN215728766U
Application number: CN202121960192.2U
Authority: CN
Inventors: 成海鹏; 赖家连; 刘欢; 周琼玉
Original assignee: Ascent Sensing System Wuhan Co ltd
Current assignee: Ascent Sensing System Wuhan Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-02-01
Anticipated expiration: 2031-08-19

Abstract

The utility model relates to a current sensor testing device which comprises a case, two first copper guide vanes, a second copper guide vane, a copper guide vane connecting mechanism and a rotary reversing mechanism, wherein the two first copper guide vanes are arranged on the case; the first copper guide sheet is fixedly arranged on the case; the rotary reversing mechanism comprises a mounting seat, a locking screw rod, a base and a positioning assembly; the locking screw is in threaded connection with the mounting seat; the lower part of the mounting seat is rotatably connected with the base. The copper lead connecting mechanism is good in practicability and working reliability and simple in operation, the first copper lead and the second copper lead are connected and tightly pressed and fixed through the copper lead connecting mechanism, the connection stability of the copper leads and the accuracy of a test result are obviously improved while circuit communication is realized, and the phenomenon that the copper leads are improperly connected or poorly contacted is effectively avoided; through the rotary reversing mechanism, the current sensor is quickly reversed, and the testing efficiency and the safety are obviously improved.

Description

Current sensor testing device

Technical Field

The utility model belongs to the technical field of current sensor function test equipment, and particularly relates to a current sensor test device.

Background

The current sensor is a detection device which can sense the information of the current to be detected and convert the sensed information into an electric signal meeting certain standards or other information in required forms according to a certain rule for output so as to meet the requirements of information transmission, processing, storage, display, recording, control and the like.

When a large current reversing test is performed on the current sensor 500A, the current sensor is taken out of the tool and then the direction of the current sensor is changed, however, the test mode has the defects of complex operation, low test efficiency and poor safety. In addition, the problem of improper connection or poor contact of the copper guide plate also exists during the large-current reversing test of the current sensor 500A or above.

SUMMERY OF THE UTILITY MODEL

The utility model provides a current sensor testing device aiming at the technical problems in the prior art, and effectively solves at least one of the problems of complex operation, low testing efficiency, poor safety, improper connection or poor contact of a copper guide plate and the like in the large-current reversing test of more than 500A of the conventional current sensor.

The technical scheme for solving the technical problems is as follows:

a current sensor testing device comprises a case, two first copper guide plates, a second copper guide plate, a copper guide plate connecting mechanism and a rotary reversing mechanism, wherein the copper guide plate connecting mechanism is used for pressing or loosening the first copper guide plates and the second copper guide plates; the first copper guide sheet is fixedly arranged on the case; the rotary reversing mechanism comprises a mounting seat for fixing the current sensor and the second copper guide piece, a locking screw rod for locking the current sensor and the second copper guide piece, a base connected to the case in a sliding manner, and a positioning assembly for locking the mounting seat; the locking screw is in threaded connection with the mounting seat; the lower part of the mounting seat is rotatably connected with the base.

On the basis of the technical scheme, the utility model can be further improved as follows.

Furthermore, a vertical limiting groove for accommodating the lower part of the mounting seat is formed in the base, and the lower part of the mounting seat can rotate in the limiting groove; the side wall of the limiting groove is provided with two horizontal positioning grooves for accommodating the positioning pin, and the two positioning grooves are symmetrically distributed on two sides of the limiting groove; the lower part of the mounting seat is provided with an annular groove matched with the positioning pin; the locating pin stretches into the annular groove.

Furthermore, the locating component comprises a spring arranged in the locating groove and two locking V holes which are symmetrically distributed on the groove wall of the annular groove, and the locating pin and the base form a telescopic structure through the spring.

Further, the case comprises a horizontal bottom plate, an upper cover plate and two side supporting plates for connecting the bottom plate and the upper cover plate; and a front cover plate, a hinge seat mounting plate and an air cylinder mounting plate are sequentially arranged between the bottom plate and the upper cover plate from front to back.

Furthermore, a control handle and a linear guide rail for the sliding base are fixedly installed on the bottom plate.

Further, the copper guide sheet connecting mechanism comprises a connecting rod seat arranged between the cylinder mounting plate and the hinge seat mounting plate, a cylinder fixedly mounted on the cylinder mounting plate and used for moving the connecting rod seat, two first connecting rods, two second connecting rods and two hinge seats fixedly mounted on the hinge seat mounting plate; one end of the first connecting rod is hinged with the connecting rod seat, and the other end of the first connecting rod is hinged with the second connecting rod; one side of the second connecting rod, which is far away from the first connecting rod, is connected with the hinge seat, and one end of the second connecting rod, which is far away from the first connecting rod, is provided with a copper conductor pressing block.

Furthermore, two first rotating shafts are arranged on the connecting rod seat, and the first connecting rod is sleeved on the first rotating shafts; the first connecting rod is hinged with the second connecting rod through a second rotating shaft; the hinge seat is provided with a third rotating shaft, and the second connecting rod is sleeved on the third rotating shaft.

Further, the hinge base is mounted on the hinge base mounting plate through the conductor fixing base, and the first copper guide sheet is fixedly mounted on the conductor fixing base.

Further, the current sensor testing device further comprises a guide mechanism for guiding the connecting rod seat.

Further, guiding mechanism is including setting up a plurality of linear bearing guide pillars between cylinder mounting panel and hinge seat mounting panel and fixed mounting in the connecting rod seat and with the guide pin bushing of linear bearing guide pillar looks adaptation.

The utility model has the beneficial effects that: the copper lead connecting mechanism is good in practicability and working reliability and simple in operation, the first copper lead and the second copper lead are connected and tightly pressed and fixed through the copper lead connecting mechanism, the connection stability of the copper leads and the accuracy of a test result are obviously improved while circuit communication is realized, and the phenomenon that the copper leads are improperly connected or poorly contacted is effectively avoided; through the rotary reversing mechanism, the current sensor is quickly reversed, and the testing efficiency and the safety are obviously improved.

Drawings

FIG. 1 is a schematic perspective view (external) of the present invention;

FIG. 2 is a schematic perspective view (inside) of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a sectional view taken along line A-A of FIG. 3;

fig. 5 is a sectional view taken along the line B-B in fig. 3.

In the figure:

10. a case, 11, a bottom plate, 12, an upper cover plate, 13, a side support plate, 14, a cylinder mounting plate, 15, a hinge base mounting plate, 16, a front cover plate, 17, a linear guide rail, 20, a copper guide sheet connecting mechanism, 21, a cylinder, 22, a connecting rod base, 221, a first rotating shaft, 23, a first connecting rod, 24, a second rotating shaft, 25, a second connecting rod, 251, a copper conductor pressing block, 26, a conductor fixing base, 261, a first copper guide sheet, 27, a hinge base, 271, a third rotating shaft, 30, a guiding mechanism, 31, a linear bearing guide column, 32, a guide sleeve, 40, a rotary reversing mechanism, 41, a current sensor plug-in wire limiting plate, 42, a mounting base, 421, an annular groove, 43, a locking screw, 44, a base, 441, a limiting groove, 442, a positioning groove, 45, a positioning pin, 46, a positioning component, 461, a spring, 462, a locking V hole, 47, a second copper guide sheet, 50 and a control handle, 51. and (7) fixing the plate.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 5, the current sensor testing apparatus according to the present invention includes a housing 10, two first copper guide plates 261, a second copper guide plate 47, a copper guide plate connecting mechanism 20 for pressing or releasing the first copper guide plates 261 and the second copper guide plates 47, and a rotary reversing mechanism 40.

The cabinet 10 includes a horizontal bottom plate 11 and an upper cover plate 12, and two side support plates 13 for connecting the bottom plate 11 and the upper cover plate 12. A front cover plate 16, a hinge base mounting plate 15 and a cylinder mounting plate 14 are arranged between the bottom plate 11 and the upper cover plate 12 in sequence from front to back. The bottom plate 11, the two side support plates 13, the upper cover plate 12, the cylinder mounting plate 14 and the front cover plate 16 are connected with each other to form a closed case 10, so as to ensure the safety of the test.

The first copper guide 261 is fixedly mounted on the hinge base mounting plate 15 through the conductor fixing base 26.

The copper guide plate connecting mechanism 20 is disposed inside the case 10. Connect first copper conducting strip 261 and second copper conducting strip 47 and compress tightly fixedly through copper conducting strip coupling mechanism 20, when realizing the circuit intercommunication, show the accuracy that improves the connection stability and the test result of copper conducting strip, effectively avoid taking place the phenomenon that the copper conducting strip is connected improperly or contact failure.

The rotary reversing mechanism 40 includes a current sensor plug conductor limiting plate 41 fixedly mounted on the front cover plate 16, a mounting seat 42 for fixing the current sensor and the second copper conductive piece 47, a locking screw 43 for locking the current sensor and the second copper conductive piece 47, a base 44 slidably connected to the bottom plate 11, and a positioning assembly 46 for locking the mounting seat 42. The locking screw 43 is screwed to the mounting seat 42. The lower portion of the mounting base 42 is rotatably connected to a base 44. By rotating the reversing mechanism 40, the current sensor is quickly reversed, and the testing efficiency and the safety are obviously improved. After the high-current positive direction passes through the primary test of current sensor, rotate mount pad 42 180 degrees to utilize locating component 46 to lock mount pad 42, can carry out the high-current negative direction and pass through the secondary test of current sensor, need not to take out current sensor from mount pad 42 and change the direction with current sensor again. By arranging the positioning assembly 46, the reversing precision is ensured, so that the connection stability of the copper guide sheet and the accuracy of a test result are improved.

As shown in fig. 4 and 5, in the preferred embodiment of the above technical solution, a vertical limit groove 441 is formed on the base 44 for accommodating the lower portion of the mounting seat 42, and the lower portion of the mounting seat 42 can rotate in the limit groove 441. Two horizontal positioning grooves 442 for accommodating the positioning pin 45 are formed in the side wall of the limiting groove 441, and the two positioning grooves 442 are symmetrically distributed on two sides of the limiting groove 441. An annular groove 421 matched with the positioning pin 45 is formed in the lower portion of the mounting seat 42, and the positioning pin 45 extends into the annular groove 421. Therefore, when the lower part of the mounting seat 42 is rotatably connected with the base 44, the rotational stability of the mounting seat 42 and the operational reliability of the rotary reversing mechanism 40 are remarkably improved, and the phenomenon that the mounting seat 42 is deviated in the vertical direction in the rotating process is effectively avoided.

As shown in fig. 5, on the basis of the above preferred embodiment, the positioning assembly 46 of the present invention includes a spring 461 disposed in the positioning slot 442 and two locking V holes 462 symmetrically disposed on the groove wall of the annular groove 421, and the positioning pin 45 and the base 44 form a telescopic structure through the spring 461. When the locking V-hole 462 on the mounting seat 42 rotates to the position of the positioning pin 45, the positioning pin 45 extends out under the elastic force of the spring 461, that is, the positioning pin 45 extends into the locking V-hole 462, so as to realize the locking of the mounting seat 42; when the mounting seat 42 is rotated continuously, the positioning pin 45 retracts under the pushing force of the mounting seat 42, and the spring 461 is in a compressed state, so that the mounting seat 42 is locked by the positioning assembly 46, and the practicability and the operation convenience of the utility model are further improved.

As shown in fig. 2, a linear guide 17 for sliding the base 44, a limiting block for limiting the rotation reversing mechanism 40, and a push-pull rod for pushing and pulling the base 44 are fixedly mounted on the bottom plate 11.

As shown in fig. 1, a control handle 50 is fixedly mounted on the bottom plate 11 for controlling the start and stop of the current sensor testing device. The control handle 50 is mounted on the base plate 11 through a fixing plate 51.

In the preferred embodiment of the above technical solution, as shown in fig. 2 and 3, the copper guide sheet connecting mechanism 20 includes a connecting rod seat 22 disposed between the cylinder mounting plate 14 and the hinge seat mounting plate 15, a cylinder 21 fixedly mounted on the cylinder mounting plate 14 and used for moving the connecting rod seat 22, two first connecting rods 23, two second connecting rods 25, and two hinge seats 27 fixedly mounted on the hinge seat mounting plate 15. The hinge base 27 is mounted on the hinge base mounting plate 15 through the conductor fixing base 26. One end of the first connecting rod 23 is hinged with the connecting rod seat 22, and the other end is hinged with the second connecting rod 25. The side of the second connecting rod 25 far away from the first connecting rod 23 is connected with the hinge seat 27, and one end of the second connecting rod far away from the first connecting rod 23 is provided with a copper conductor pressing block 251. Therefore, the first copper guide piece 261 and the second copper guide piece 47 are pressed or loosened through the copper guide piece connecting mechanism 20, the copper guide pieces are ensured to be stably connected, the accuracy of a test result is improved, and meanwhile, the operation convenience, the working reliability and the test efficiency of the current sensor testing device are improved.

In a preferred embodiment of the present invention, two first rotating shafts 221 are disposed on the connecting rod seat 22, and the first connecting rod 23 is sleeved on the first rotating shafts 221; the first connecting rod 23 is hinged with the second connecting rod 25 through a second rotating shaft 24; the hinge base 27 is provided with a third rotating shaft 271, and the second connecting rod 25 is sleeved on the third rotating shaft 271, so that the working reliability of the current sensor testing device can be further improved, and the difficulty in assembly and maintenance of the current sensor testing device is reduced.

As shown in fig. 3, on the basis of the above preferred embodiment, the present invention further adds a guiding mechanism 30 for guiding the connecting rod seat 22, so as to effectively avoid the phenomenon that the connecting rod seat 22 is shifted during the moving process to affect the normal operation of the copper guide strip connecting mechanism 20. Preferably, the guide mechanism 30 includes a plurality of linear bearing guide posts 31 disposed between the cylinder mounting plate 14 and the hinge base mounting plate 15, and a guide sleeve 32 fixedly mounted on the connecting rod base 22 and adapted to the linear bearing guide posts 31, so that the operational reliability of the copper guide tab connection mechanism 20 can be further improved.

The operation process of the utility model is as follows:

in use, the current sensor is first placed on the mounting seat 42, and the current sensor and the second copper lead 47 are locked by the locking screw 43.

Then, the base 44 is pushed to slide along the linear guide 17 to the position of the first copper guide 261, that is, the second copper guide 47 contacts with the first copper guide 261, the control handle 50 is shaken, the cylinder 21 is operated, the piston rod thereof extends out, the copper conductor pressing block 251 presses the first copper guide 261 and the second copper guide 47, and a current test is performed from positive to negative.

Next, after the test is completed, the air cylinder 21 is operated, the piston rod thereof is retracted, the copper conductor pressing block 251 releases the first copper guiding piece 261 and the second copper guiding piece 47, the base 44 is pulled to slide to the initial position along the linear guiding rail 17, the mounting base 42 is rotated by 180 °, and the mounting base 42 is locked by the positioning assembly 46.

Finally, the base 44 is pushed to slide to the position of the first copper guide piece 261 along the linear guide rail 17, that is, the second copper guide piece 47 contacts with the first copper guide piece 261, the control handle 50 is shaken, the cylinder 21 acts, the piston rod of the cylinder extends out, the copper conductor pressing block 251 presses the first copper guide piece 261 and the second copper guide piece 47 tightly, and secondary test is carried out from negative to positive direction of current.

In the present invention, the devices and components not described in the structure are all commercially available devices or components.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The current sensor testing device is characterized by comprising a case (10), two first copper guide sheets (261), a second copper guide sheet (47), a copper guide sheet connecting mechanism (20) for pressing or loosening the first copper guide sheets (261) and the second copper guide sheets (47), and a rotary reversing mechanism (40); the first copper guide sheet (261) is fixedly arranged on the case (10); the rotary reversing mechanism (40) comprises a mounting seat (42) used for fixing the current sensor and the second copper guide sheet (47), a locking screw rod (43) used for locking the current sensor and the second copper guide sheet (47), a base (44) connected to the case (10) in a sliding mode, and a positioning assembly (46) used for locking the mounting seat (42); the locking screw rod (43) is in threaded connection with the mounting seat (42); the lower part of the mounting seat (42) is rotatably connected with the base (44).

2. The current sensor testing device according to claim 1, wherein the base (44) is provided with a vertical limiting groove (441) for accommodating the lower portion of the mounting seat (42), and the lower portion of the mounting seat (42) can rotate in the limiting groove (441); the side wall of the limiting groove (441) is provided with two horizontal positioning grooves (442) for accommodating the positioning pin (45), and the two positioning grooves (442) are symmetrically distributed on two sides of the limiting groove (441); an annular groove (421) matched with the positioning pin (45) is formed in the lower part of the mounting seat (42); the positioning pin (45) extends into the annular groove (421).

3. The current sensor testing device according to claim 2, wherein the positioning assembly (46) comprises a spring (461) disposed in the positioning groove (442) and two locking V-shaped holes (462) symmetrically distributed on the wall of the annular groove (421), and the positioning pin (45) and the base (44) form a telescopic structure through the spring (461).

4. The current sensor testing device according to claim 1, wherein the case (10) comprises a horizontal bottom plate (11) and an upper cover plate (12), and two side support plates (13) for connecting the bottom plate (11) and the upper cover plate (12); a front cover plate (16), a hinge base mounting plate (15) and an air cylinder mounting plate (14) are sequentially arranged between the bottom plate (11) and the upper cover plate (12) from front to back.

5. The current sensor testing device according to claim 4, wherein the base plate (11) is fixedly provided with a control handle (50) and a linear guide rail (17) for the sliding base (44).

6. The current sensor testing device according to claim 4, wherein the copper guide strip connection mechanism (20) comprises a connecting rod seat (22) arranged between the cylinder mounting plate (14) and the hinge seat mounting plate (15), a cylinder (21) fixedly mounted on the cylinder mounting plate (14) and used for moving the connecting rod seat (22), two first connecting rods (23), two second connecting rods (25) and two hinge seats (27) fixedly mounted on the hinge seat mounting plate (15); one end of the first connecting rod (23) is hinged with the connecting rod seat (22), and the other end of the first connecting rod is hinged with the second connecting rod (25); one side of the second connecting rod (25) far away from the first connecting rod (23) is connected with the hinge seat (27), and one end of the second connecting rod far away from the first connecting rod (23) is provided with a copper conductor pressing block (251).

7. The current sensor testing device according to claim 6, wherein the connecting rod seat (22) is provided with two first rotating shafts (221), and the first connecting rod (23) is sleeved on the first rotating shafts (221); the first connecting rod (23) is hinged with the second connecting rod (25) through a second rotating shaft (24); the hinge seat (27) is provided with a third rotating shaft (271), and the second connecting rod (25) is sleeved on the third rotating shaft (271).

8. The current sensor testing device according to claim 6, wherein the hinge base (27) is mounted on the hinge base mounting plate (15) through a conductor fixing base (26), and the first copper conducting strip (261) is fixedly mounted on the conductor fixing base (26).

9. The current sensor testing device according to claim 6, further comprising a guiding mechanism (30) for guiding the linkage base (22).

10. The current sensor testing device according to claim 9, wherein the guiding mechanism (30) comprises a plurality of linear bearing guide posts (31) disposed between the cylinder mounting plate (14) and the hinge base mounting plate (15) and a guide sleeve (32) fixedly mounted to the connecting rod base (22) and adapted to the linear bearing guide posts (31).