A batch testing device for a current sensor

Abstract

The present invention discloses a batch testing device for current sensors, which relates to the field of current sensor detection technologies, and includes an equipment rack, a modular tooling, an electrical module, and a control module; the modular tooling includes a bearing frame, a positioning carrier, a test busbar, and a transverse movement mechanism; the positioning carrier is adapted to the current sensor, and a plurality of positioning carriers are arranged side by side along the length direction of the bearing frame; the transverse movement mechanism is arranged on the bearing frame, the driving end of the transverse movement mechanism is connected to the test busbar, and the transverse movement mechanism can drive the test busbar to pass through the busbar hole of the current sensor; the test busbar is electrically connected to the electrical module, the bearing frame is connected with an output module, the output module is electrically connected to the current sensor, and the current sensor outputs a voltage performance output signal through the output module. The present invention solves the defects of the existing current sensor detection device, such as cumbersome operation, high cost, and low efficiency when detecting different current sensors.

Description

Technical Field

[0001] The present invention relates to the field of current sensor detection technology, and particularly to a batch testing device for current sensors. Background Art

[0002] A current sensor is a common component for detecting current, and it usually uses the Hall principle for current detection. When manufacturing current sensors, dedicated testing equipment is required to detect the performance output signals of the current sensors to ensure the quality of the finished products.

[0003] Traditional current sensor testing devices generally include a device main body, a positioning carrier, and a testing busbar. The positioning carrier and the testing busbar are both integrally arranged on the device main body. The current sensor is placed in the positioning carrier, and the testing busbar passes through the positioning carrier and the current sensor. The testing busbar is conducted with the electrical module, and the electrical module conveys high-voltage current to the testing busbar. The current sensor generates a Hall voltage according to the busbar current, and uses the Hall principle to detect the current flowing through the testing busbar. The current sensor sends the Hall voltage signal to the processor, and the processor processes and analyzes the electrical signal to realize the detection of the voltage performance output signal of the current sensor.

[0004] The above-mentioned current sensor testing device can only meet the batch testing of products with the same external dimensions, electrical interfaces, and pin definitions. If other current sensors need to be tested, when switching products, it is necessary to replace the positioning carrier, adjust the position of the testing busbar, connect the testing circuit. The switching process is complex, and it is necessary to confirm the wiring, positioning, and testing contact positions one by one, and conduct the stability confirmation of the measurement system, which takes a relatively long time. The entire replacement process is time-consuming and laborious. Summary of the Invention

[0005] In order to solve the defects that the current sensor detection device in the prior art needs to make large adjustments to the equipment and re-conduct stability tests when detecting different current sensors, and has the problems of cumbersome operation, high cost, and low efficiency, the present invention provides a batch testing device for current sensors.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] The present invention provides a batch testing device for current sensors. The automatic testing device includes an equipment frame, a modular tooling, an electrical module, and a control module. The modular tooling is detachably installed on the equipment frame, and the control module is arranged on the equipment frame; the control module is detachably electrically connected to the modular tooling to control the operation of the modular tooling;

[0008] The modular tooling includes a bearing frame, a positioning carrier, a test busbar, and a transverse movement mechanism; the positioning carrier is adapted to the current sensor, and a plurality of the positioning carriers are arranged side by side along the length direction of the bearing frame; the transverse movement mechanism is arranged on the bearing frame, and the driving end of the transverse movement mechanism is connected to the test busbar, and the transverse movement mechanism can drive the test busbar to pass through the busbar hole of the current sensor.

[0009] The test busbar is electrically connected to the electrical module, and the electrical module is used to provide a test current for the test busbar; the bearing frame is connected with an output module, the output module is electrically connected to the current sensor, and the current sensor outputs a voltage performance output signal through the output module.

[0010] In this solution, for the batch testing device of the current sensor, the modular tooling is carried by the equipment frame. Multiple positioning carriers are integrally arranged on the bearing frame of the modular tooling. The positioning carrier is adapted to the current sensor, and each positioning carrier places a current sensor. A plurality of the positioning carriers are arranged side by side along the length direction of the bearing frame, so that the busbar holes of multiple current sensors are aligned with each other. Thus, the transverse movement mechanism can drive the test busbar to pass through the busbar holes of multiple current sensors. The electrical module supplies power to the test busbar, and a detection current flows through the test busbar. The current sensor detects the current of the test busbar through the busbar hole and generates a voltage performance output signal. The current sensor outputs the voltage performance output signal through the output module. Through calculation and analysis of the voltage performance output signal output by the current sensor, it can be known whether the current sensor can work normally, and the detection of the current sensor is completed.

[0011] In this solution, by integrating the positioning carrier and the test busbar on the bearing frame, during detection, only the current sensor needs to be placed on the positioning carrier, and then the bearing frame is installed on the equipment rack. The control module is electrically connected to the modular tooling to control the movement of the modular tooling, so that the transverse movement mechanism drives the test busbar to insert into the busbar hole of the current sensor. The electrical module is electrically connected to the test busbar to supply power to the test busbar, and the current sensor detects the current of the test busbar to determine the quality of the current sensor. When different models of current sensors need to be detected, since the modular tooling is detachably connected to the equipment rack, only the corresponding modular tooling needs to be replaced. Different modular toolings are loaded with different current sensors, which can meet the detection of different current sensors, thereby improving the batch testing ability of the current sensor and the compatibility of this batch testing device. At the same time, since in each modular tooling, components such as the test busbar, positioning carrier, and transverse movement mechanism are all installed on the bearing frame, only the measurement system needs to be verified during the verification and initial operation stages of the modular tooling. There is no need to confirm the stability of the measurement system every time the modular tooling is used later, which simplifies the user operation. And when a new product current sensor needs to be detected, there is no need to redesign the entire testing device. Only a new modular tooling needs to be designed for this product, which reduces the R & D cycle and production cost of the batch detection device for the new product current sensor.

[0012] Further, a plurality of busbar limiting holes are provided on the positioning carrier, the busbar limiting holes of the plurality of positioning carriers correspond one by one, and each busbar limiting hole is aligned with the busbar hole of one current sensor; the test busbar is inserted into the busbar limiting hole.

[0013] In this solution, the busbar limiting holes on the positioning carrier are aligned with the busbar holes of the current sensors. After the test busbar is inserted into the busbar limiting holes and then into the busbar holes, the current sensors in a plurality of positioning carriers are strung together in sequence, so that multiple current sensors can be detected at one time. The busbar limiting holes on the positioning carrier restrict the movement trajectory of the test busbar, enabling the test busbar to stably pass through a plurality of positioning carriers and current sensors.

[0014] Further, the transverse movement mechanism includes a transverse movement cylinder and a transverse movement support. The transverse movement cylinder is arranged on the bearing frame along the length direction of the bearing frame, the transverse movement support is connected to the piston rod of the transverse movement cylinder, and the test busbar is fixedly connected to the transverse movement support.

[0015] In this solution, the transverse movement mechanism drives the transverse movement support to move through the transverse movement cylinder, thereby driving the test busbar to move along the length direction of the bearing frame, enabling the test busbar to automatically insert into the busbar hole of the current sensor for testing and automatically withdraw from the busbar hole after the test is completed, thereby realizing the batch automated detection of the current sensor.

[0016] Further, there are two of the test busbars and the transverse movement mechanisms. The two test busbars are respectively arranged at both ends of the bearing frame, and the two transverse movement mechanisms are respectively connected to the two test busbars. The two transverse movement mechanisms drive the two test busbars to move towards or away from each other.

[0017] In this solution, there are two test busbars and transverse movement mechanisms, that is, one test busbar is arranged at each end of the bearing frame. Each test busbar is driven to move transversely by a transverse movement mechanism, so as to facilitate the insertion and detachment of the test busbar into and from the busbar hole of the current sensor. At the same time, the length of a single test busbar is reduced, thereby reducing the overall length of the modular tooling when the test busbar moves in the opposite direction and facilitating the operation of the user.

[0018] Further, the modular tooling further includes a pressing air cylinder. The pressing air cylinder is arranged between the two test busbars and is used to clamp and conduct the two test busbars.

[0019] In this solution, after the two test busbars move towards each other and pass through the busbar holes of multiple current sensors, the pressing air cylinder presses the two test busbars together, so that the test busbars will not shift, ensuring the stability of the batch detection device during operation. At the same time, the pressing air cylinder conducts the two test busbars, so that the test busbars are connected to form a loop. Only by electrically connecting the two test busbars to the electrical module can the performance output detection of all current sensors on the modular tooling be realized. There is no need to wire the test busbars to form a connected loop, thus reducing the wiring steps, saving costs and facilitating the operation of the user.

[0020] Further, the number of output modules is the same as the number of positioning carriers. Each output module includes an output terminal and a connection plug. Each current sensor is provided with an output jack. The connection plug is fitted into the output jack. The output terminal is electrically connected to the connection plug, and the output terminal is fixed outside the bearing frame and is used to be electrically connected to the control module.

[0021] In this solution, the number of output modules is the same as the number of positioning carriers. Each output module is electrically connected to the current sensor by fitting the connection plug into the output jack of the current sensor; the voltage performance output signal output by the current sensor is transmitted to the output terminal through the connection plug and output to the control module through the output terminal. The control module analyzes the voltage performance output signal to know whether the current sensor is qualified.

[0022] Further, the output module further includes a control base and a driving cylinder. The cylinder body of the driving cylinder is fixed to the bearing frame. The control base is connected to the piston rod of the driving cylinder, and the connection plug is fixed to the control base. A plurality of avoidance holes are formed in the bearing frame, and the connection plug passes through the avoidance holes and is aligned with the output jacks.

[0023] In this solution, the output module drives the base to move through the driving cylinder. The connection plug is fixed to the control base and moves together with the base. The connection plug passes through the avoidance hole and exposes outside the bearing frame to align with the output jacks of the current sensor. When the piston rod of the driving cylinder moves, it drives the control base and the connection plug to move together, so that a plurality of connection plugs are synchronously inserted into the corresponding output jacks, realizing the automatic connection between the current sensor and the output module.

[0024] Further, the bearing frame is provided with a in-place detection sensor, and the control base is connected with a limit block. When the connection plug is inserted into the output jack, the limit block triggers the in-place detection sensor.

[0025] In this solution, when the control base moves, it drives the limit block to move. When the control base moves to the position where the connection plug cooperates with the output jack, the in-place detection sensor detects the limit block, thereby automatically obtaining the connection status between the current sensor and the output module.

[0026] Further, a detection connection terminal is provided on the equipment frame. The detection connection terminal is matched with the output module and is slidably arranged on the equipment frame and electrically connected to the control module.

[0027] In this solution, the detection connection terminal on the equipment frame is slidably arranged to facilitate moving and monitoring the matching between the connection terminal and the output module, thereby realizing the electrical connection between the output module and the control module.

[0028] Further, the modular tooling further includes a solenoid valve group. An air circuit quick connector is provided on the bearing frame. The air circuit quick connector is connected to the solenoid valve group, and the transverse movement mechanism is connected to the solenoid valve group and moves through pneumatic drive.

[0029] In this solution, an air circuit quick connector is provided on the bearing frame, which is quickly connected to the air source through the air circuit quick connector. The air circuit quick connector is connected to the solenoid valve group, thereby providing power for driving parts such as the transverse movement mechanism. This setting method integrates the solenoid valve group in the bearing frame and realizes the quick disassembly and assembly with the air source through the air circuit quick connector, facilitating the installation and replacement of the modular tooling.

[0030] In summary, the present invention has the following beneficial effects:

[0031] The batch testing device for the current sensor of the present invention, when different models of current sensors need to be detected, since the modular tooling is detachably connected to the equipment rack, only the corresponding modular tooling needs to be replaced. Different modular toolings are loaded with different current sensors, which can meet the detection of different current sensors, thereby improving the batch testing ability of the current sensor and enhancing the compatibility of the batch testing device. At the same time, in each modular tooling, components such as the test busbar, positioning carrier, and transverse movement mechanism are already installed on the bearing frame. Therefore, only the measurement system needs to be verified during the modular tooling commissioning verification and the first commissioning stage. There is no need to confirm the stability of the measurement system every time the modular tooling is used later, which simplifies the user operation. When new product current sensors need to be detected, there is no need to redesign the entire testing device. Only a new modular tooling needs to be designed for this kind of product, reducing the R & D cycle and production cost of the batch detection device for new product current sensors. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 FIG. 6 is a schematic perspective view of the front side of the batch testing device according to an embodiment of the present invention.

[0033] Figure 2 FIG. 10 is a schematic perspective view of the rear side of the batch testing device according to an embodiment of the present invention.

[0034] Figure 3 FIG. 14 is a schematic perspective view of the modular tooling and the operation platform according to an embodiment of the present invention.

[0035] Figure 4 FIG. Figure 3 is an enlarged schematic view of the structure at A in FIG.

[0036] Figure 5 FIG. 24 is an exploded schematic view of the modular tooling and the operation platform according to an embodiment of the present invention.

[0037] Figure 6 FIG. 28 is a schematic view of the lower side structure of the modular tooling according to an embodiment of the present invention.

[0038] Figure 7 FIG. 32 is a front view schematic view of the lifting limit mechanism according to an embodiment of the present invention.

[0039] Figure 8 FIG. 36 is a schematic perspective view of the lifting limit mechanism according to an embodiment of the present invention.

[0040] Figure 9 FIG. 40 is a schematic perspective view of the modular tooling according to an embodiment of the present invention Figure 1 .

[0041] Figure 10Schematic exploded view of a current sensor and a positioning carrier according to an embodiment of the present invention.

[0042] Figure 11 Schematic perspective view of a bearing frame, a pressing cylinder and a solenoid valve group according to an embodiment of the present invention.

[0043] Figure 12 Schematic perspective view of a pressing cylinder according to an embodiment of the present invention.

[0044] Figure 13 Schematic perspective view of a modular tooling according to an embodiment of the present invention Figure 2 。

[0045] Figure 14 Schematic perspective view of a control base, a driving cylinder and a connecting plug according to an embodiment of the present invention.

[0046] Figure 15 Schematic view of the lower side of a control base and a driving cylinder according to an embodiment of the present invention.

[0047] In the figure:

[0048] 1000, batch testing device; 100, equipment rack; 110, operation platform; 111, upper panel; 112, first slide rail; 113, guiding sleeve; 120, enclosing housing; 121, operation opening; 122, loading opening; 130, loading conveyor belt; 140, locking mechanism; 141, positioning column; 142, magnetic safety lock; 150, lifting limit mechanism; 151, lifting cylinder; 152, lifting table; 1521, horizontal moving seat; 1522, vertical moving seat; 1523, first slider; 1524, guiding rod; 1525, guiding groove; 1526, guiding column; 1527, lifting plate; 153, limiting column; 160, detection connection terminal; 170, adjusting cylinder; 200, modular tooling; 210, bearing frame; 211, second slider; 212, upper pressing block; 213, avoidance hole; 214, in-place detection sensor; 215, aviation connector; 220, positioning carrier; 221, bus bar limiting hole; 230, test bus bar; 231, connection terminal; 240, transverse movement mechanism; 241, transverse movement cylinder; 242, transverse movement support; 243, second slide rail; 250, output module; 251, output terminal; 252, connecting plug; 253, control base; 254, driving cylinder; 255, limiting block; 260, pressing cylinder; 261, lower pressing block; 270, solenoid valve group; 280, pneumatic quick connection port; 201, positioning notch; 202, limiting hole; 300, electrical module; 2000, current sensor; 2100, bus bar hole; 2200, output jack. Detailed implementation manners

[0049] The present invention will be further described below in conjunction with the accompanying drawings.

[0050] This embodiment discloses a batch testing device 1000 for current sensors. Referring to Figure 1 , the batch testing device 1000 includes an equipment rack 100, a modular tooling 200, an electrical module 300, and a control module. The modular tooling 200 is detachably installed on the equipment rack 100, and the control module is arranged on the equipment rack 100 and is detachably electrically connected to the modular tooling 200 to control the operation of the modular tooling 200.

[0051] Referring to Figure 1 and Figure 2 , the equipment rack 100 includes an operation platform 110 and an enclosure housing 120. The operation platform 110 is a cuboid frame structure, and the modular tooling 200 is installed on the operation platform 110 for users to operate. The enclosure housing 120 covers above the operation platform 110 and encloses the modular tooling 200.

[0052] An operation opening 121 is provided on the front side (i.e., the side facing the operator) of the enclosure housing 120 for users to perform operation control, and a loading opening 122 is provided on the rear side of the enclosure housing 120. The modular tooling 200 can enter the enclosure housing 120 through the loading opening 122 and be installed on the operation platform 110.

[0053] Referring to Figure 2 , a loading conveyor belt 130 is arranged on the operation platform 110. The loading conveyor belt 130 extends from the loading opening 122 to the operation opening 121, and the modular tooling 200 is automatically conveyed through the loading conveyor belt 130, which is convenient for users to disassemble, install, and replace the modular tooling 200.

[0054] In this embodiment, the loading conveyor belt 130 is specifically selected as a roller conveyor belt. Two loading conveyor belts 130 are arranged in parallel, and the loading conveyor belts 130 are arranged perpendicular to the length direction of the modular tooling 200. When the modular tooling 200 is conveyed through the loading conveyor belt 130, both ends of the modular tooling 200 are respectively placed on the two loading conveyor belts 130 to make the transportation of the modular tooling 200 more stable. In addition, in other embodiments, the loading conveyor belt 130 can also be selected as other types of conveyor belts.

[0055] Referring to Figures 2 to 4, a locking mechanism 140 is provided on the operation platform 110. The locking mechanism 140 includes a positioning post 141 and a magnetic safety lock 142. The positioning post 141 is vertically fixed to the upper panel 111 of the operation platform 110. Wherein, a positioning notch 201 is provided at the bottom of the modular tooling 200. The positioning notch 201 extends horizontally and forms a horizontal opening facing the positioning post 141. When the feeding conveyor belt 130 transports the modular tooling 200 to the set position, the positioning post 141 slides horizontally into the positioning notch 201, thereby realizing the preliminary positioning of the modular tooling 200.

[0056] The magnetic safety lock 142 is fixed to the front side of the modular tooling 200. A lock hole is provided on the modular tooling 200. The lock core of the magnetic safety lock 142 can horizontally extend and insert into the lock hole on the modular tooling 200, thereby realizing the locking of the modular tooling 200.

[0057] Refer to Figures 5 to 7 , a lifting limit mechanism 150 is further provided in the operation platform 110. The lifting limit mechanism 150 is arranged below the modular tooling 200. The lifting limit mechanism 150 includes a lifting cylinder 151, a lifting table 152 and a limit post 153. The cylinder body of the lifting cylinder 151 is fixed to the panel of the operation platform 110. The piston rod of the lifting cylinder 151 is connected to the lifting table 152. The limit post 153 is fixedly arranged on the lifting table 152. A limit hole 202 is provided at the bottom of the modular tooling 200. When the modular tooling 200 is transported to the set position, the limit hole 202 is aligned with the limit post 153. At this time, the lifting cylinder 151 can be driven to lift the lifting table 152, driving the limit post 153 to rise and insert into the limit hole 202, thereby limiting the modular tooling 200, making the modular tooling 200 not easy to shift horizontally on the operation tabletop, so as to be more stable when detecting the current sensor 2000.

[0058] In this embodiment, the lifting limit mechanism 150 is arranged below the upper panel 111 of the operation platform 110, so that when replacing the modular tooling 200, the lifting limit mechanism 150 is accommodated below the operation platform 110, avoiding interfering with the transportation, disassembly and assembly of the modular tooling 200.

[0059] Refer to Figures 5 to 8 , in this embodiment, the lifting table 152 includes a horizontal moving seat 1521 and a vertical moving seat 1522. A first slide rail 112 is provided on the lower side of the upper panel 111 of the operation platform 110. A first slider 1523 cooperating with the first slide rail 112 is provided on the horizontal moving seat 1521. The lifting cylinder 151 is horizontally connected to the lower side of the upper panel 111 of the operation platform 110. The horizontal moving seat 1521 is fixedly connected to the piston rod of the lifting cylinder 151. When the piston rod of the lifting cylinder 151 extends and retracts, it can drive the horizontal moving seat 1521 to move horizontally.

[0060] A horizontally extending guide rod 1524 is fixedly arranged on the vertically moving seat 1522. A guide groove 1525 is formed on the horizontally moving seat 1521. The guide groove 1525 is a long groove, and along the direction away from the lifting cylinder 151, the guide groove 1525 inclines downward. The guide rod 1524 is inserted into the guide groove 1525, and the peripheral side of the guide rod 1524 abuts against the inner wall of the guide groove 1525. A guide sleeve 113 is arranged on the upper panel 111 of the operation platform 110. The guide sleeve 113 penetrates through the upper panel 111 of the operation platform 110 and is fixed relative to the operation platform 110. A guide post 1526 is inserted into the guide sleeve 113. The guide post 1526 is connected to the vertically moving seat 1522 and passes through the guide sleeve 113 and exposes above the upper panel 111. One end of the guide post 1526 away from the vertically moving seat 1522 is connected with a lifting plate 1527. A limit post 153 is fixedly arranged on the upper side of the lifting plate 1527 and is aligned with the limit hole 202.

[0061] When the piston rod of the lifting cylinder 151 extends, the horizontally moving seat 1521 horizontally moves in the direction away from the lifting cylinder 151. The guide groove 1525 presses the guide rod 1524 obliquely upward. At the same time, the guide sleeve 113 limits the guide post 1526 so that the vertically moving seat 1522 cannot move horizontally. Further, the vertically moving seat 1522, the guide post 1526 and the lifting plate 1527 move upward, and the limit post 153 is inserted into the limit hole 202 of the modular tooling 200. When the piston rod of the lifting cylinder 151 retracts, the horizontally moving seat 1521 horizontally moves in the direction close to the lifting cylinder 151. The guide groove 1525 presses the guide rod 1524 obliquely downward. Further, the vertically moving seat 1522 moves downward, and the limit post 153 disengages from the limit hole 202 of the modular tooling 200. Thus, by adopting the lifting and limiting mechanism 150 of this embodiment, the lifting cylinder 151 can be horizontally arranged, thereby reducing the limitation of the layout of the lifting cylinder 151, reducing the vertical space occupied by the lifting and limiting mechanism 150, and facilitating the arrangement of the lifting and limiting mechanism 150 in the operation platform 110.

[0062] Refer to Figure 6 and Figure 9 As shown in FIGS.

[0063] In this embodiment, the carrying frame 210 is in the shape of a rectangular parallelepiped box, so as to integrate components such as the positioning carrier 220, the test busbar 230, and the transverse movement mechanism 240 on or within the carrying frame 210. The outer periphery of the carrying frame 210 contacts the operation platform 110, and both the positioning notch 201 and the limiting hole 202 are provided at the bottom of the carrying frame 210.

[0064] The test busbar 230 is used for electrically connecting with the electrical module 300. Specifically, a wiring terminal 231 is provided at the outer end of the test busbar 230, and the wiring terminal 231 is used for connecting with the wire of the electrical module 300. A current with a set value is input into the test busbar 230 through the electrical module 300, and the current sensor 2000 induces a voltage performance output signal due to the current flowing through the test busbar 230. The carrying frame 210 is connected with an output module 250, and the output module 250 is electrically connected to the current sensor 2000. The current sensor 2000 outputs the voltage performance output signal through the output module 250. By calculating and analyzing the voltage performance output signal, the test value of the current of the test busbar 230 can be obtained, and by comparing the test value of the current of the test busbar 230 with the actual set value, it can be known whether the current sensor 2000 is qualified.

[0065] Specifically in this embodiment, referring to Figure 10 , the current sensor 2000 includes a Hall element, and a plurality of busbar holes 2100 penetrating through the current sensor 2000 are formed on the current sensor 2000. When testing the current sensor 2000, the test busbar 230 passes through the busbar holes 2100, and the current flowing through the test busbar 230 generates a magnetic field. The Hall element generates a Hall voltage according to the magnetic field, and the magnitude of this voltage depends on the magnitude of the current flowing through the test busbar 230. Therefore, the test value of the current flowing through the test busbar 230 can be obtained through calculating and analyzing this voltage.

[0066] Referring to Figure 9 and Figure 10 , a plurality of positioning carriers 220 are arranged side by side along the length direction of the carrying frame 210, and the busbar holes 2100 of the current sensors 2000 on the plurality of positioning carriers 220 are aligned with each other, so that the same test busbar 230 can be inserted into the busbar holes 2100 of a plurality of current sensors 2000 at the same time to detect a plurality of current sensors 2000.

[0067] In this embodiment, six busbar holes 2100 are provided on each current sensor 2000, and the six busbar holes 2100 are arranged in sequence along the length direction of the current sensor 2000. Correspondingly, the test busbar 230 has six bifurcations, and each bifurcation passes through one busbar hole 2100. In other embodiments, the number of busbar holes 2100 on each current sensor 2000 can also be other values. Correspondingly, the number of bifurcations of the test busbar 230 of the modular tooling 200 is the same as the number of busbar holes 2100 on each current sensor 2000.

[0068] The transverse movement mechanism 240 is arranged on the bearing frame 210. The driving end of the transverse movement mechanism 240 is connected to the test busbar 230, and the transverse movement mechanism 240 can drive the test busbar 230 to pass through the busbar holes 2100 of the current sensor 2000.

[0069] In this embodiment, the test busbar 230 is driven by the transverse movement mechanism 240 to pass through the busbar holes 2100 of multiple current sensors 2000. The electrical module 300 supplies power to the test busbar 230. The current sensor 2000 detects the current of the test busbar 230 through the busbar hole 2100 and generates a voltage performance output signal. The current sensor 2000 outputs the voltage performance output signal through the output module 250, realizing the batch automatic test of the current sensor 2000. When it is necessary to detect current sensors 2000 of different models, only the corresponding modular tooling 200 needs to be replaced. Different modular toolings 200 are loaded with different current sensors 2000, which can meet the detection of different current sensors 2000, thereby improving the batch test ability of the current sensor 2000 and the compatibility of the batch test device 1000. At the same time, since in each modular tooling 200, components such as the test busbar 230, the positioning carrier 220, and the transverse movement mechanism 240 are all installed on the bearing frame 210, only the measurement system verification needs to be carried out during the debugging and verification stage and the first commissioning stage of the modular tooling 200. It is no longer necessary to confirm the stability of the measurement system every time the modular tooling 200 is used later, simplifying the user operation. When it is necessary to detect a new product current sensor 2000, there is no need to redesign the entire test device. Only a new modular tooling 200 needs to be designed for this product, reducing the R & D cycle and production cost of the batch detection device for the new product current sensor 2000.

[0070] Refer to Figure 6 and Figure 9, there are two test busbars 230 and two traversing mechanisms 240. The two test busbars 230 are respectively arranged at both ends of the carrying frame 210, that is, one test busbar 230 is arranged at each end of the carrying frame 210. The two traversing mechanisms 240 are respectively arranged at both ends of the carrying frame 210 and are correspondingly connected to the two test busbars 230. The two traversing mechanisms 240 drive the two test busbars 230 to move towards or away from each other. Thus, each test busbar 230 is driven to traverse by a traversing mechanism 240. When installing the current sensor 2000 on the modular tooling 200, the two traversing mechanisms 240 drive the two test busbars 230 to move away from each other to expose the upper surface of the carrying frame 210, which is convenient for installing the current sensor 2000 in the positioning carrier 220 on the carrying frame 210. After the current sensor 2000 is installed, the two traversing mechanisms 240 drive the two test busbars 230 to move towards each other. The two test busbars 230 pass through the same number of current sensors 2000 from both ends. Thus, it is convenient for the test busbar 230 to insert into and disengage from the busbar hole 2100 of the current sensor 2000, and at the same time, the length of a single test busbar 230 is reduced, thereby reducing the overall length of the modular tooling 200 when the test busbar 230 moves in the opposite direction, which is convenient for the user to operate.

[0071] Refer to Figure 9 and Figure 11 , the traversing mechanism 240 includes a traversing cylinder 241 and a traversing support 242. The traversing cylinder 241 is arranged along the length direction of the carrying frame 210 on the carrying frame 210, and the traversing cylinder 241 is arranged inside the carrying frame 210 to avoid interference with the positioning carrier 220. The traversing support 242 is connected to the piston rod of the traversing cylinder 241, and the test busbar 230 is fixedly connected to the traversing support 242. By driving the traversing support 242 to move by the traversing cylinder 241, the test busbar 230 is driven to move along the length direction of the carrying frame 210, so that the test busbar 230 can be automatically inserted into the busbar hole 2100 of the current sensor 2000 for testing and automatically withdrawn from the busbar hole 2100 after the test is completed. Thus, batch automatic detection of the current sensor 2000 is realized.

[0072] Wherein, second slide rails 243 are respectively connected to both sides of the traversing support 242. The second slide rails 243 are arranged parallel to the length direction of the carrying frame 210. Second sliders 211 which are slidably matched with the second slide rails 243 are fixedly arranged on the carrying frame 210. By the cooperation of the second slide rails 243 and the second sliders 211, the movement of the traversing support 242 driven by the traversing cylinder 241 is more stable.

[0073] Refer to Figure 10, a plurality of bus bar limiting holes 221 are formed in the positioning carrier 220. The bus bar limiting holes 221 of the plurality of positioning carriers 220 correspond to each other one by one, and each bus bar limiting hole 221 is aligned with the bus bar hole 2100 of a current sensor 2000. Specifically, in this embodiment, six bus bar limiting holes 221 are provided on each positioning carrier 220. After the test bus bar 230 is inserted into the bus bar limiting hole 221 and then into the bus bar hole 2100, the current sensors 2000 in the plurality of positioning carriers 220 are connected in series in sequence, so that a plurality of current sensors 2000 can be detected at one time. The bus bar limiting holes 221 on the positioning carrier 220 restrict the movement trajectory of the test bus bar 230, so that the test bus bar 230 can stably pass through the plurality of positioning carriers 220 and current sensors 2000.

[0074] Referring to Figure 11 , the modular tooling 200 further includes a pressing cylinder 260. The pressing cylinder 260 is arranged between the two test bus bars 230, and the pressing cylinder 260 is used to clamp and conduct the two test bus bars 230. After the two test bus bars 230 move towards each other and pass through the bus bar holes 2100 of the plurality of current sensors 2000, the pressing cylinder 260 presses the two test bus bars 230 together, so that the test bus bars 230 will not shift, ensuring the stability of the batch detection device during operation. At the same time, the pressing cylinder 260 keeps the two test bus bars 230 conducting, so that the test bus bars 230 are connected to form a loop. Only by electrically connecting the two test bus bars 230 to the electrical module 300 can the performance output detection of all the current sensors 2000 on the modular tooling 200 be realized, without wiring the test bus bars 230 to form a connected loop, thereby reducing the wiring steps, saving costs and facilitating the operation of the user.

[0075] Specifically, referring to Figure 11 and Figure 12 , an upper pressing block 212 is arranged above the bearing frame 210, and the upper pressing block 212 straddles above the moving path of the test bus bar 230. The pressing cylinder 260 is arranged below the upper pressing block 212 and arranged inside the bearing frame 210, so as to integrate the pressing cylinder 260 inside the bearing frame 210, making the overall structure compact and reasonable. The piston rod of the pressing cylinder 260 extends vertically upward and is connected with a lower pressing block 261. The pressing cylinder 260 drives the lower pressing block 261 to move upward to press the two test bus bars 230 together.

[0076] Referring to Figure 10 and Figure 13, there are multiple output modules 250, and the number of output modules 250 is the same as the number of positioning carriers 220. Each output module 250 is connected to a current sensor 2000. Specifically, each output module 250 includes an output terminal 251 and a connection plug 252. Each current sensor 2000 is provided with an output jack 2200. The connection plug 252 is inserted and mated with the output jack 2200, and the output terminal 251 is electrically connected to the connection plug 252. The multiple output terminals 251 are fixed side by side on the outer side of the bearing frame 210 and are used to be electrically connected to the control module, realizing the electrical connection between the current sensor 2000 and the control module. The control module calculates and analyzes the voltage performance output signal to obtain a current detection value, and then judges whether the current sensor 2000 is qualified.

[0077] Refer to Figures 13 to 14 , the output module 250 further includes a control base 253 and a driving cylinder 254. The cylinder block of the driving cylinder 254 is fixed to the bearing frame 210, the control base 253 is connected to the piston rod of the driving cylinder 254, and the connection plug 252 is fixed to the control base 253.

[0078] Among them, in combination with Figure 9 , Figures 13 to 15 , both the control base 253 and the driving cylinder 254 are arranged inside the bearing frame 210. A plurality of avoidance holes 213 are formed on the bearing frame 210. The connection plug 252 passes through the avoidance holes 213 and is aligned with the output jack 2200, and the connection plug 252 can horizontally slide relative to the avoidance holes 213. Thus, the output module 250 drives the base to move through the driving cylinder 254. The connection plug 252 is fixed to the control base 253 and moves together with the base. The connection plug 252 passes through the avoidance holes 213 and exposes outside the bearing frame 210 to align with the output jack 2200 of the current sensor 2000, so that the multiple connection plugs 252 are synchronously inserted into the corresponding output jacks 2200 to realize the automatic connection between the current sensor 2000 and the output module 250.

[0079] The bearing frame 210 is provided with a position detection sensor 214, and the control base 253 is connected with a limit block 255. When the control base 253 moves, it drives the limit block 255 to move. When the control base 253 moves to the position where the connection plug 252 is mated with the output jack 2200, the position detection sensor 214 detects the limit block 255, and the limit block 255 triggers the position detection sensor 214, so as to automatically know the connection situation between the current sensor 2000 and the output module.

[0080] Specifically, in this embodiment, the in-place detection sensor 214 is an optoelectronic sensor. When the limit block 255 passes by the optoelectronic sensor, the limit block 255 blocks the light of the optoelectronic sensor, so that the in-place detection sensor 214 detects that the control base 253 has moved to the set position, causing the connection plug 252 to cooperate with the output jack 2200. In addition, in other embodiments, the in-place detection sensor 214 can also be a pressure touch sensor or other suitable sensors.

[0081] Referring to Figure 5 and Figure 11 , a solenoid valve group 270 is provided inside the carrier frame 210, and a pneumatic quick connector 280 is provided on the outer side of the carrier frame 210. The pneumatic quick connector 280 is connected to the solenoid valve group 270, and the pneumatic quick connector 280 is quickly connected to the air source. The pneumatic quick connector 280 is connected to the solenoid valve group 270. The solenoid valve group 270 is connected to the lateral movement cylinder 241, the pressing cylinder 260, the driving cylinder 254, and the lifting cylinder 151 through pipelines, so as to provide power for the above-mentioned cylinders. This setting method integrates the solenoid valve group 270 inside the carrier frame 210 and realizes quick disassembly and assembly with the air source through the pneumatic quick connector 280, facilitating the installation and replacement of the modular tooling 200.

[0082] Referring to Figure 3 and Figure 5 , a detection connection terminal 160 is provided on the equipment frame 100, and the detection connection terminal 160 is matched with the output terminal 251 of the output module 250. Specifically, the detection connection terminal 160 includes a plurality of probes, and the plurality of probes can contact and be electrically connected to the output terminal 251.

[0083] The detection connection terminal 160 is slidably arranged on the operating table surface of the equipment frame 100 and is electrically connected to the control module. Specifically, an adjustment cylinder 170 is provided on the operating table surface. The piston rod of the adjustment cylinder 170 is connected to the detection connection terminal 160. The detection connection terminal 160 is driven to move back and forth by the adjustment cylinder 170, so as to move the monitoring connection terminal to match the output module 250, thereby realizing the electrical connection between the output module 250 and the control module.

[0084] Referring to Figure 5 , an aviation connector 215 is provided on the outer side of the carrier frame 210. The aviation plug is electrically connected to the solenoid valve group 270 inside the carrier frame 210 and is communicatively connected to the control module. The aviation plug is used to realize the signal connection between the modular tooling 200 and the control module. Thus, each solenoid valve of the solenoid valve group 270 can be controlled to switch through the control module, and further, the lateral movement mechanism 240, the lifting and limiting mechanism 150, the pressing cylinder 260, and the driving cylinder 254 can be controlled to work.

[0085] In this embodiment, the control module includes a computer and a PLC. The computer receives the voltage performance output signal output by the current sensor 2000, processes and calculates the voltage performance output signal to obtain the current detection value of the test busbar 230. The computer stores the detected value of the current of the test busbar 230 and the current value provided by the electrical module 300 for the test busbar 230, and can compare the detected value with the current value to analyze the detection error of the current sensor 2000. Preferably, in this embodiment, the computer is a PC, which is externally connected to input devices such as a display, a keyboard and a mouse, and the data detected by the current sensor 2000 and the operating parameters of the batch testing device 1000 are displayed in real time through the display, and the computer is operated through the keyboard and mouse. The PLC is used to control the solenoid valve group 270, and further control the transverse movement mechanism 240, the lifting limit mechanism 150, the pressing cylinder 260 and the driving cylinder 254 to work.

[0086] The above description is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structures, features and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.

Claims

1. A batch testing device for a current sensor, characterized in that, The current sensor (2000) includes a Hall element. The batch testing device includes an equipment rack (100), a modular tooling (200), an electrical module (300), and a control module. The modular tooling (200) is detachably installed on the equipment rack (100), and the control module is arranged on the equipment rack (100). The control module is detachably electrically connected to the modular tooling (200) to control the operation of the modular tooling (200). The modular tooling (200) includes a carrier frame (210), a positioning carrier (220), a test busbar (230), and a transverse movement mechanism (240). The positioning carrier (220) is adapted to the current sensor (2000), and a plurality of the positioning carriers (220) are arranged side by side along the length direction of the carrier frame (210). The transverse movement mechanism (240) is arranged on the carrier frame (210), and the driving end of the transverse movement mechanism (240) is connected to the test busbar (230). The transverse movement mechanism (240) can drive the test busbar (230) to pass through the busbar hole (2100) of the current sensor (2000). The test busbar (230) is electrically connected to the electrical module (300), and the electrical module (300) is used to provide a test current for the test busbar (230). The carrier frame (210) is connected with an output module (250), and the output module (250) is electrically connected to the current sensor (2000). The current sensor (2000) outputs a voltage performance output signal through the output module (250). The number of the output modules (250) is the same as that of the positioning carriers (220). Each output module (250) includes an output terminal (251) and a connection plug (252). Each current sensor (2000) is provided with an output jack (2200). The connection plug (252) is fitted into the output jack (2200). The output terminal (251) is electrically connected to the connection plug (252), and the output terminal (251) is fixed on the outer side of the carrier frame (210) and is used to be electrically connected to the control module. The output module (250) further includes a control base (253) and a driving cylinder (254). The cylinder body of the driving cylinder (254) is fixed on the carrier frame (210), the control base (253) is connected to the piston rod of the driving cylinder (254), and the connection plug (252) is fixed on the control base (253). A plurality of avoidance holes (213) are formed in the carrier frame (210), and the connection plug (252) passes through the avoidance hole (213) and is aligned with the output jack (2200). A plurality of bus bar limiting holes (221) are formed in the positioning carrier (220). The bus bar limiting holes (221) of the plurality of positioning carriers (220) correspond to each other one by one, and each bus bar limiting hole (221) is aligned with the bus bar hole (2100) of one current sensor (2000); the test bus bar (230) is inserted into the bus bar limiting hole (221).

2. The batch testing device for a current sensor according to claim 1, wherein, The transverse movement mechanism (240) includes a transverse movement cylinder (241) and a transverse movement support (242). The transverse movement cylinder (241) is arranged on the bearing frame (210) along the length direction of the bearing frame (210). The transverse movement support (242) is connected to the piston rod of the transverse movement cylinder (241), and the test bus bar (230) is fixedly connected to the transverse movement support (242).

3. The batch testing device for a current sensor according to claim 1 or 2, characterized in that, There are two test bus bars (230) and two transverse movement mechanisms (240). The two test bus bars (230) are respectively arranged at both ends of the bearing frame (210). The two transverse movement mechanisms (240) are respectively connected to the two test bus bars (230), and the two transverse movement mechanisms (240) drive the two test bus bars (230) to move towards or away from each other.

4. The batch testing device for a current sensor according to claim 3, characterized in that, The modular tooling (200) further includes a pressing cylinder (260). The pressing cylinder (260) is arranged between the two test bus bars (230), and the pressing cylinder (260) is used for clamping and conducting the two test bus bars (230).

5. The batch testing device for a current sensor according to claim 1, characterized in that, The bearing frame (210) is provided with a position detection sensor (214). The control base (253) is connected with a limit block (255). When the connection plug (252) is inserted into the output jack (2200), the limit block (255) triggers the position detection sensor (214).

6. The batch testing device for a current sensor according to claim 1, wherein, The equipment frame (100) is provided with a detection connection terminal (160). The detection connection terminal (160) is matched with the output module (250). The detection connection terminal (160) is slidably arranged on the equipment frame (100) and is electrically connected to the control module.

7. The batch testing device for a current sensor according to claim 1, wherein The modular tooling (200) further includes a solenoid valve group (270). The bearing frame (210) is provided with a pneumatic quick connector (280). The pneumatic quick connector (280) is connected to the solenoid valve group (270). The transverse movement mechanism (240) is connected to the solenoid valve group (270) and moves through pneumatic drive.

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