Current testing device
By designing a movable stage and probe movement detection module, the current load test instability caused by poor coplanarity of the shunt is solved, and a more stable current load test is achieved.
Patent Information
- Application Number
- CN202420736617.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-04-10
AI Technical Summary
The coplanarity of existing shunts is poor, resulting in unstable current loading tests and power outage of loading.
A current testing device is designed, including a first stage and a second stage arranged in a separate body, at least one stage can be movable in the first direction for carrying the positive electrode conductive member and the negative electrode conductive member. The probe in the detection module can be moved in the first direction to abut the conductive member, and the insufficient contact area is compensated by movement of the stage.
The movement of the stage compensates for the insufficient contact area, which improves the stability of the current loading test and avoids current exceeding the standard and timeout power outage.
Smart Images
Figure CN222482295U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of current testing devices, in particular to a current testing device. Background Art
[0002] In the prior art, the shunt generally includes a positive conductive part, a negative conductive part, and a resistance alloy disposed between the positive and negative conductive parts. However, in some shunts, the resistance alloy is welded to the positive and negative conductive parts respectively, making the coplanarity of the shunt uneven. When the shunt is subjected to a current loading test, the positive and negative conductive parts are rigidly pressed down at the same time. Due to the poor coplanarity of the positive and negative conductive parts, the contact area between the positive and negative conductive parts and the carrier below them is insufficient, which easily causes the current to exceed the standard and the power to be cut off over time during current detection. Utility Model Content
[0003] The main purpose of the utility model is to provide a current testing device, aiming to solve the problem of unstable current loading test and power failure caused by poor coplanarity of the shunt.
[0004] The utility model technical solution proposes a current testing device for detecting the current of a shunt, wherein the shunt comprises a positive conductive member and a negative conductive member arranged at intervals, and the current testing device comprises:
[0005] A carrier module, comprising a first carrier and a second carrier which are separately arranged, at least one of the first carrier and the second carrier being movable along a first direction, the first carrier being used to carry the positive electrode conductive member, and the second carrier being used to carry the negative electrode conductive member;
[0006] The detection module is arranged on a side of the carrier module close to the diverter, and the detection module includes a first detection element and a second detection element. The first detection element can move along the first direction toward the first carrier to abut against the positive conductive component, and the second detection element can move along the first direction toward the second carrier to abut against the negative conductive component.
[0007] In one embodiment, the current testing device also includes a first elastic member and a base, wherein the first elastic member and the base are arranged on a side of the carrier module away from the detection module, and the first elastic member is arranged between the carrier module and the base, and abuts against the base and at least one of the first carrier and the second carrier.
[0008] In one embodiment, there are multiple first elastic members, and the base includes a first seat body and a second seat body which are separately arranged. The first seat body is arranged below the first carrier, and at least one of the first elastic members abuts against the first carrier and the first seat body, so that the first carrier can move along the first direction; the second seat body is arranged below the second carrier, and at least one of the first elastic members abuts against the second carrier and the second seat body, so that the second carrier can move along the first direction.
[0009] In one embodiment, the current testing device also includes a mounting frame, a second elastic member and a third elastic member. The mounting frame is arranged on a side of the detection module away from the carrier module, one end of the second elastic member abuts against the mounting frame, and the other end abuts against the first detection element, and one end of the third elastic member abuts against the mounting frame, and the other end abuts against the second detection element.
[0010] In one embodiment, the first detection element includes a plurality of first probes, one end of the first probe away from the first stage is connected to the mounting frame, and the outer wall of the other end is formed with a first step surface, and the second elastic member is sleeved on the outer periphery of the first probe, one end of the second elastic member abuts against the mounting frame, and the other end abuts against the first step surface;
[0011] The second detection element includes a plurality of second probes, one end of the second probe away from the second carrier is connected to the mounting frame, and the outer wall of the other end is formed with a second step surface. The third elastic member is sleeved on the outer periphery of the second probe, and one end of the third elastic member abuts the mounting frame, and the other end abuts the second step surface.
[0012] In one embodiment, the mounting frame includes a first frame body and a second frame body that are spaced apart from each other, a plurality of the first probes are disposed through the first frame body, and a plurality of the second probes are disposed through the second frame body.
[0013] In one embodiment, the current testing device further comprises a first conductive plate, a second conductive plate, a first positioning member and a second positioning member, wherein the first conductive plate is disposed on a side of the first frame away from the first carrier, the plurality of first probes pass through the first conductive plate, and the first positioning member is sleeved on an end of the first probe passing through the first conductive plate and abuts against the first conductive plate;
[0014] The second conductive plate is disposed on a side of the second frame away from the second carrier, the plurality of second probes pass through the second conductive plate, and the second positioning member is sleeved on one end of the second probe passing through the second conductive plate and abuts against the second conductive plate.
[0015] In one embodiment, the current testing device further comprises a first positioning member, a second positioning member, a first fastener and a second fastener, wherein the first positioning member and the first fastener are arranged on the periphery of the first probe and are arranged on a side of the mounting frame away from the carrier module, the first positioning member is arranged between the first fastener and the mounting frame, and the first fastener is used to fasten a power supply wire connected to the first probe;
[0016] The second positioning member and the second fastener are arranged on the outer periphery of the second probe and on the side of the mounting frame away from the carrier module. The second positioning member is arranged between the second fastener and the mounting frame. The second fastener is used to fasten the power wire connected to the second probe.
[0017] In one embodiment, a first boss and a second boss are provided on a side of the mounting frame facing the carrier module, the first detection element includes a first electrode plate, one end of the second elastic member is connected to the first boss, and the other end abuts the first electrode plate; the second detection element includes a second electrode plate, one end of the third elastic member is connected to the second boss, and the other end abuts the second electrode plate.
[0018] In one embodiment, the detection module is provided with a plurality of the second elastic members and a plurality of the third elastic members, the mounting frame is provided with a plurality of first convex columns and a plurality of second convex columns, the plurality of first convex columns are arranged at intervals along the length direction of the first electrode plate, and the plurality of second elastic members are connected to the plurality of first convex columns one by one; the plurality of second convex columns are arranged at intervals along the length direction of the second electrode plate, and the plurality of third elastic members are connected to the plurality of second convex columns one by one;
[0019] And / or, the current testing device further includes a driving member, wherein the driving member is drivingly connected to the mounting frame to drive the first detection element and the second detection element to move along the first direction.
[0020] The technical solution of the utility model is that at least one of the first carrier and the second carrier can move in the first direction, the first detection element can move toward the first carrier in the first direction to abut against the positive conductive member, and the second detection element can move toward the second carrier in the first direction to abut against the negative conductive member. The first carrier and the second carrier can compensate for the insufficient contact area between the carrier module and the positive conductive member or the negative conductive member through their own displacement, thereby solving the problems of unstable current loading test and power failure due to loading timeout. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0022] Figure 1 This is a schematic diagram of the structure of a current testing device in one embodiment of the utility model;
[0023] Figure 2 A schematic structural diagram of a detection module of a current testing device according to another embodiment;
[0024] Figure 3 FIG. 4 is a front view of a current testing device according to another embodiment.
[0025] Description of Figure Numbers:
[0026] Label name Label name 10 Current test device 110 The first stage 20 Shunt 120 Second stage 100 Stage module 210 The first probe 200 Detection module 211 First step surface 300 Base 220 The second probe 400 Mounting bracket 221 Second step surface 510 The first elastic member 230 First electrode plate 520 The second elastic member 240 Second electrode plate 530 The third elastic member 310 The first body 610 First conductive plate 320 The second body 620 The second conductive plate 410 The first frame 710 First fastener 420 The second frame 720 Second fastener 430 First boss 810 First positioning piece 440 Second boss 820 Second positioning member 202 Negative electrode conductive part 201 Positive electrode conductive parts
[0027] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0031] Please refer to Figures 1 to 3 The utility model proposes a current testing device 10, which is used to detect the current of a shunt 20. The shunt 20 includes a positive conductive member 201 and a negative conductive member 202 that are spaced apart. The current testing device 10 includes a carrier module 100 and a detection module 200. The carrier module 100 includes a first carrier 110 and a second carrier 120 that are separately arranged. At least one of the first carrier 110 and the second carrier 120 can move along a first direction. The first carrier 110 is used to carry the positive conductive member 201, and the second carrier 120 is used to carry the negative conductive member 202. The detection module 200 is arranged on a side of the carrier module 100 close to the shunt 20. The detection module 200 includes a first detection element and a second detection element. The first detection element can move toward the first carrier 110 along the first direction to abut against the positive conductive member 201, and the second detection element can move toward the second carrier 120 along the first direction to abut against the negative conductive member 202.
[0032] Specifically, the current testing device 10 is mainly used to detect the current of the shunt 20, the shunt 20 includes a positive conductive member 201 and a negative conductive member 202 arranged at intervals, and an alloy resistor connecting the positive conductive member 201 and the negative conductive member 202, the positive conductive member 201 is configured as a positive copper busbar, and the negative conductive member 202 is configured as a negative copper busbar. The current testing device 10 includes a stage module 100 for carrying the shunt 20 and a detection module 200 for detecting the current of the shunt 20.
[0033] The first carrier 110 and the second carrier 120 are separately arranged, and at least one of them can move in the first direction. During the test, the positive conductive member 201 is placed on the first carrier 110, and the negative conductive member 202 is placed on the second carrier 120, and then the first detection element is moved to the position of the positive conductive member 201 and abuts against the positive conductive member 201, and the second detection element is moved to the position of the negative conductive member 202 and abuts against the negative conductive member 202 to detect the current of the shunt 20. Since at least one of the first carrier 110 and the second carrier 120 can move in the first direction, the first carrier 110 and the second carrier 120 can compensate for the insufficient contact area between the carrier module 100 and the positive conductive member 201 or the negative conductive member 202 through their own movement displacement, thereby solving the problems of unstable current loading test and power failure due to loading timeout.
[0034] It is understandable that when the diverter 20 is placed on the carrier module 100, due to the poor coplanarity of the positive conductive member 201 and the negative conductive member 202, there may be a gap between the first carrier 110 and the positive conductive member 201 in at least part of the area, resulting in insufficient contact area between the first carrier 110 and the positive conductive member 201, or there may be a gap between the second carrier 120 and the negative conductive member 202 in at least part of the area, resulting in insufficient contact area between the second carrier 120 and the negative conductive member 202, which may easily cause excessive current and overtime power outage during current detection. When the contact area between the first carrier 110 and the positive electrode conductive member 201 is insufficient, the first carrier 110 can move along the first direction, and the displacement of the first carrier 110 can be used to compensate for the gap between the first carrier 110 and the positive electrode conductive member 201, thereby reducing the insufficient contact area between the first carrier 110 and the positive electrode conductive member 201 caused by the poor coplanarity of the shunt 20, thereby solving the problems of unstable current loading test and power failure due to loading timeout. Similarly, when the contact area between the second carrier 120 and the negative electrode conductive member 202 is insufficient, the second carrier 120 can move along the first direction, and the displacement of the second carrier 120 can be used to compensate for the gap between the second carrier 120 and the negative electrode conductive member 202, thereby reducing the insufficient contact area between the second carrier 120 and the negative electrode conductive member 202 caused by the poor coplanarity of the shunt 20.
[0035] The first carrier 110 and the second carrier 120 can move along the first direction, and the first carrier 110 can move toward the positive conductive member 201 to compensate for the gap between the first carrier 110 and the positive conductive member 201; or the first carrier 110 can move away from the positive conductive member 201, and under the pressure of the detection module 200, the positive conductive member 201 and the first carrier 110 are pressed tightly to compensate for the gap between the second carrier 120 and the negative conductive member 202. Based on the same principle, the second carrier 120 can move toward the negative conductive member 202 or away from the negative conductive member 202, which will not be repeated here. Therefore, the first carrier 110 can move along the first direction, the second carrier 120 can move along the first direction, or both the first carrier 110 and the second carrier 120 can move along the first direction.
[0036] The first detection element and the second detection element can move along the first direction, which can be realized by manual or automatic control. The first detection element and the second detection element can be automatically controlled under the drive of the cylinder or the electric push rod. When the first detection element abuts against the positive conductive member 201 and the second detection element abuts against the negative conductive member 202, the current testing device 10 can detect the current of the shunt 20 through the built-in circuit and sensor, and output the detection result to a display screen or other devices.
[0037] During the test, the first carrier 110 abuts against one side of the positive conductive component 201, and the first detection element abuts against the other side of the positive conductive component 201, thereby increasing the contact area of the positive conductive component 201, expanding the current loading contact selection range, and solving the problem of power failure due to current loading timeout, thereby improving the stability of the current test. Furthermore, since the contact area of the positive conductive component 201 is increased, the heat transmission channel is expanded, and a large amount of heat is generated during the current loading test of the diverter 20, which can be evacuated in time, thereby reducing the risk of heat to the current test and solving the problem of unstable current loading test. Based on the same principle, the second carrier 120 abuts against one side of the negative conductive component 202, and the second detection element abuts against the other side of the negative conductive component 202, thereby increasing the contact area of the negative conductive component 202, which will not be repeated here.
[0038] The technical solution of the utility model enables at least one of the first carrier 110 and the second carrier 120 to move in the first direction, the first detection element can move toward the first carrier 110 in the first direction to abut against the positive conductive member 201, and the second detection element can move toward the second carrier 120 in the first direction to abut against the negative conductive member 202. The first carrier 110 and the second carrier 120 can compensate for the insufficient contact area between the carrier module 100 and the positive conductive member 201 or the negative conductive member 202 through their own movement displacement, thereby solving the problems of unstable current loading test and power failure due to loading timeout.
[0039] In one embodiment, the current testing device 10 also includes a first elastic member 510 and a base 300, and the first elastic member 510 and the base 300 are arranged on a side of the carrier module 100 away from the detection module 200. The first elastic member 510 is arranged between the carrier module 100 and the base 300, and abuts against the base 300 and at least one of the first carrier 110 and the second carrier 120.
[0040] Please refer to Figure 2 and Figure 3 The base 300 is used to install and support the carrier module 100, and can be made of a solid material, such as metal or plastic, and provide sufficient supporting force and stability according to the weight and size of the carrier module 100 to ensure the stability and reliability of the installation of the carrier module 100, as well as the safety and reliability during the test process.
[0041] The function of the first elastic member 510 is to provide elastic support to ensure a stable connection between the carrier module 100 and the base 300, and to enable at least one of the first carrier 110 and the second carrier 120 to move in the first direction. The first elastic member 510 can be made of elastic materials such as springs or elastic pads, and has a certain flexibility and resilience. When the positive conductive member 201 or the negative conductive member 202 on the carrier module 100 applies pressure, the first elastic member 510 can buffer and absorb part of the pressure, thereby protecting the connection between the carrier module 100 and the base 300 from damage; at the same time, it uses its own elasticity (compression or recovery elastic deformation) to act on the carrier module 100, so that the carrier module 100 can move toward or away from the diverter 20 to ensure the contact area between the carrier module 100 and the diverter 20.
[0042] The first elastic member 510 is disposed between the first carrier 110 and the base 300. One end of the first elastic member 510 abuts against the first carrier 110, and the other end abuts against the base 300. The first carrier 110 can move along the first direction through the elasticity of the first elastic member 510. The first elastic member 510 enables the first carrier 110 to have better self-adaptability. Under the elastic force of the first elastic member 510, the first carrier 110 can self-adjust according to the distance between itself and the positive electrode conductive member 201, so that the connection between the first carrier 110 and the positive electrode conductive member 201 is more stable and the contact area is larger. The second elastic member 520 is disposed between the second carrier 120 and the base 300. One end of the second elastic member 520 abuts against the second carrier 120, and the other end abuts against the base 300. The second carrier 120 can move along the first direction through the elasticity of the second elastic member 520. The second elastic member 520 enables the second carrier 120 to have better adaptability. Under the elastic force of the second elastic member 520, the second carrier 120 can self-adjust according to the distance between itself and the negative conductive member 202, so that the connection between the second carrier 120 and the negative conductive member 202 is more stable and the contact area is larger.
[0043] In one embodiment, a plurality of first elastic members 510 are provided, and the base 300 includes a first seat body 310 and a second seat body 320 which are separately arranged. The first seat body 310 is arranged below the first carrier 110, and at least one first elastic member 510 abuts against the first carrier 110 and the first seat body 310, so that the first carrier 110 can move along the first direction; the second seat body 320 is arranged below the second carrier 120, and at least one first elastic member 510 abuts against the second carrier 120 and the second seat body 320, so that the second carrier 120 can move along the first direction.
[0044] Please refer to Figure 2 and Figure 3, the provision of multiple first elastic members 510 can provide better elastic support and stability to ensure the stability and accuracy of the first carrier 110 and the second carrier 120 during movement. The first seat body 310 is used to carry the first carrier 110. One, two or more first elastic members 510 are provided between the first seat body 310 and the first carrier 110. One end of the first elastic member 510 abuts against the first seat body 310, and the other end abuts against the first carrier 110, so that the first carrier 110 can move along the first direction. The second seat body 320 is used to carry the second carrier 120. One, two or more first elastic members 510 are provided between the second seat body 320 and the second carrier 120. One end of the first elastic member 510 abuts against the second seat body 320, and the other end abuts against the second carrier 120, so that the second carrier 120 can move along the first direction. The first base body 310 and the second base body 320 are separately provided, and during the movement of the first carrier 110 and the second carrier 120, the vibration generated by their own movement will not affect each other through the first base body 310 and the second base body 320, thereby ensuring the accuracy of the test result. In other embodiments, the first base body 310 and the second base body 320 can also be provided as one body.
[0045] In one embodiment, the current testing device 10 also includes a mounting frame 400, a second elastic member 520 and a third elastic member 530. The mounting frame 400 is arranged on a side of the detection module 200 away from the carrier module 100. One end of the second elastic member 520 abuts against the mounting frame 400, and the other end abuts against the first detection element. One end of the third elastic member 530 abuts against the mounting frame 400, and the other end abuts against the second detection element.
[0046] Please refer to Figures 1 to 3 The mounting frame 400 provides a stable mounting structure for mounting the first detection element and the second detection element. The mounting frame 400 ensures the stability and reliability of the current testing device 10 and reduces the test error caused by the shaking of the first detection element and the second detection element. The mounting frame 400 can be made of any suitable material, such as metal, plastic, etc. The first detection element and the second detection element can be connected to the mounting frame 400 by threaded connection, welding or other methods to ensure the stability and reliability of the installation of the first detection element and the second detection element.
[0047] The function of the second elastic member 520 is to provide a certain elastic pressure between the first detection element and the positive electrode conductive member 201, so as to further ensure good contact between the first detection element and the positive electrode conductive member 201, and maintain a stable electrical connection. At the same time, under the elastic force of the second elastic member 520, the first detection element can be adjusted according to the distance between itself and the positive electrode conductive member 201, so as to ensure that there is enough contact area between the first detection element and the positive electrode conductive member 201 and the current density is uniform, which not only greatly reduces the current Joule heat of the contact surface, but also enables the sampling module on the shunt 20 to collect the real temperature under the current during calibration, thereby ensuring the accuracy of the shunt 20, thereby improving the yield rate of the shunt 20, and reducing the risk of unstable current loading test and power failure due to loading timeout.
[0048] When the current testing device 10 is in use, one end of the second elastic member 520 abuts against the mounting frame 400, and the other end abuts against the first detection element. The first detection element moves in the first direction under the action of manual, cylinder or electric push rod. The first detection element first contacts the positive conductive member 201, and continues to apply force. The second elastic member 520 will be compressed, and the elastic force of the second elastic member 520 pushes the first detection element toward the positive conductive member 201, achieving pressure connection and ensuring good contact. In addition, the clamping force of the first detection element can be quickly adjusted by changing the type of the second elastic member 520 or adjusting the compression amount of the second elastic member 520, which is convenient and quick. At the same time, the presence of the second elastic member 520 can also absorb the slight displacement and vibration between the positive conductive member 201 and the first detection element, thereby improving the stability and reliability of the test.
[0049] The working principle of the third elastic member 530 is the same as that of the second elastic member 520, and is used to provide a certain elastic pressure between the second detection element and the negative electrode conductive member 202 to achieve good contact and self-adjustment between the second detection element and the negative electrode conductive member 202. No further details will be given here.
[0050] The second elastic member 520 and the third elastic member 530 provide elastic support and connection functions. The second elastic member 520 and the third elastic member 530 can be made of elastic materials such as springs or elastic pads, and have certain flexibility and resilience. The second elastic member 520 and the third elastic member 530 can buffer and absorb the pressure from the first detection element and the second detection element, and at the same time, they can also provide certain flexibility to adapt to different test requirements and environmental changes.
[0051] In one embodiment, the first detection element includes a plurality of first probes 210, one end of the first probe 210 away from the first carrier 110 is connected to the mounting frame 400, and the outer wall of the other end is formed with a first step surface 211, and the second elastic member 520 is sleeved on the outer periphery of the first probe 210, one end of the second elastic member 520 abuts the mounting frame 400, and the other end abuts the first step surface 211; the second detection element includes a plurality of second probes 220, one end of the second probe 220 away from the second carrier 120 is connected to the mounting frame 400, and the outer wall of the other end is formed with a second step surface 221, and the third elastic member 530 is sleeved on the outer periphery of the second probe 220, one end of the third elastic member 530 abuts the mounting frame 400, and the other end abuts the second step surface 221.
[0052] Please refer to Figure 1 and Figure 2 , the first probe 210 and the second probe 220 can be made of conductive materials to perform current testing. Their lengths and diameters can be designed and adjusted according to specific test requirements. One end of the first probe 210 is connected to the mounting frame 400 to ensure a firm connection with the mounting frame 400. The outer wall of the other end is formed with a first step surface 211 to connect with the second elastic member 520 (not shown in the figure). Similarly, one end of the second probe 220 is connected to the mounting frame 400, and the outer wall of the other end is formed with a second step surface 221 to connect with the third elastic member 530 (not shown in the figure).
[0053] The outer wall of the first probe 210 is formed with a first step surface 211 for the second elastic member 520 to abut against, so as to increase the contact area between the first probe 210 and the second elastic member 520, and provide greater contact force and stability. When the current test device 10 is in use, one end of the second elastic member 520 abuts against the mounting frame 400, and the other end abuts against the first step surface 211. Through the support and fixation of the first step surface 211, the second elastic member 520 can better maintain contact with the first probe 210 and provide the required elastic pressure. The presence of the first step surface 211 can also prevent the second elastic member 520 from falling off or shifting from the end of the first probe 210 during use, thereby increasing the stability and reliability of the device. Based on the same principle, the second step surface 221 is used for the third elastic member 530 to abut against, so as to increase the contact area between the second probe 220 and the third elastic member 530. It will not be repeated here.
[0054] Each first probe 210 can achieve effective contact with the positive electrode conductive member 201, thereby ensuring sufficient effective contact area and uniform current density between the first probe 210 and the positive electrode conductive member 201. Moreover, the contact area between each first probe 210 and the positive electrode conductive member 201 is independent of each other, and poor contact between one first probe 210 and the positive electrode conductive member 201 will not affect the test results of other first probes 210. In addition, the effective current carrying capacity of the current testing device 10 can be improved by increasing the number of first probes 210, so that the current testing device 10 can adapt to larger current testing conditions. Based on the same principle, multiple second probes 220 have the same function to ensure sufficient effective contact area and uniform current density between the second probe 220 and the negative electrode conductive member 202. I will not go into details here.
[0055] In one embodiment, the mounting frame 400 includes a first frame body 410 and a second frame body 420 that are spaced apart from each other. The plurality of first probes 210 are disposed through the first frame body 410 , and the plurality of second probes 220 are disposed through the second frame body 420 .
[0056] Please refer to Figure 1 and Figure 2 , the interval between the first frame 410 and the second frame 420 can be set according to the size and layout of the diverter 20. The first frame 410 and the second frame 420 are separately arranged, a plurality of first probes 210 are arranged in the first frame 410, and a plurality of second probes 220 are arranged in the second frame 420. The movement of the first probe 210 and the second probe 220 is not affected by each other, and has greater flexibility. In other embodiments, the first frame 410 and the second frame 420 can also be interconnected structures.
[0057] In one embodiment, the current testing device 10 further includes a first conductive plate 610, a second conductive plate 620, a first positioning member 810 and a second positioning member 820. The first conductive plate 610 is disposed on a side of the first frame 410 away from the first carrier 110, and a plurality of first probes 210 pass through the first conductive plate 610. The first positioning member 810 is sleeved on one end of the first probes 210 passing through the first conductive plate 610 and abuts against the first conductive plate 610. The second conductive plate 620 is disposed on a side of the second frame 420 away from the second carrier 120, and a plurality of second probes 220 pass through the second conductive plate 620. The second positioning member 820 is sleeved on one end of the second probes 220 passing through the second conductive plate 620 and abuts against the second conductive plate 620.
[0058] Please refer to Figure 1, the first conductive plate 610 and the second conductive plate 620 can be made of conductive materials to conduct current. The first conductive plate 610 and the second conductive plate 620 are respectively connected to an external power supply through their own power supply wires, and the shapes and sizes of the first conductive plate 610 and the second conductive plate 620 can be designed and adjusted according to specific test requirements. The first conductive plate 610 is arranged on one side of the first frame 410 to ensure a firm connection with the first frame 410. A plurality of first probes 210 pass through the first conductive plate 610 to achieve an electrical connection between the first probes 210 and the first conductive plate 610, thereby facilitating current testing. Similarly, the second conductive plate 620 is arranged on one side of the second frame 420 to ensure a firm connection with the second frame 420. A plurality of second probes 220 pass through the second conductive plate 620 to achieve an electrical connection between the second probes 220 and the second conductive plate 620, thereby facilitating current testing.
[0059] The first positioning member 810 is used to adjust and limit the position and moving direction of the first probe 210 on the mounting frame 400, and the second positioning member 820 is used to adjust and limit the position and moving direction of the second probe 220 on the mounting frame 400. The first positioning member 810 and the second positioning member 820 can adopt various forms of structures, such as protrusions, grooves, pins, nuts, etc., so as to match the corresponding structures on the mounting frame 400. Through the functions of the first positioning member 810 and the second positioning member 820, the first probe 210 and the second probe 220 can be accurately positioned on the mounting frame 400, avoiding the situation of position offset or direction error during the test process, and improving the accuracy and stability of the test.
[0060] In one embodiment, the current testing device 10 further includes a first positioning member 810, a second positioning member 820, a first fastener 710 and a second fastener 720. The first positioning member 810 and the first fastener 710 are arranged on the periphery of the first probe 210 and on the side of the mounting frame 400 away from the carrier module 100. The first positioning member 810 is arranged between the first fastener 710 and the mounting frame 400. The first fastener 710 is used to fasten the power wire connected to the first probe 210. The second positioning member 820 and the second fastener 720 are arranged on the periphery of the second probe 220 and on the side of the mounting frame 400 away from the carrier module 100. The second positioning member 820 is arranged between the second fastener 720 and the mounting frame 400. The second fastener 720 is used to fasten the power wire connected to the second probe 220.
[0061] Please refer to Figure 2, the first probe 210 and the second probe 220 are electrically connected to the external power supply through their respective power wires to perform current testing. The first fastener 710 and the second fastener 720 can adopt a structure in the form of a thread, a buckle, a clamp, etc. to fasten the power wire to ensure a reliable connection between the power wire and the corresponding first probe 210 or the second probe 220. Through the action of the first fastener 710 and the second fastener 720, the power wire can be firmly connected to the corresponding first probe 210 or the second probe 220 to ensure the normal operation of the current testing device 10. When the current testing device 10 is in use, the first positioning member 810 and the second positioning member 820 respectively accurately position the corresponding first probe 210 and the second probe 220 at the position on the mounting frame 400.
[0062] The first positioning member 810 is disposed between the first frame 410 and the first fastener 710, and the first positioning member 810 and the first fastener 710 jointly clamp the power wire electrically connected to the first probe 210. The second positioning member 820 is disposed between the second frame 420 and the second fastener 720, and the second positioning member 820 and the second fastener 720 jointly clamp the power wire electrically connected to the second probe 220. The first fastener 710 and the second fastener 720 are simple in design and easy to operate, and the power wire can be conveniently installed and replaced.
[0063] In one embodiment, a first boss 430 and a second boss 440 are provided on a side of the mounting frame 400 facing the stage module 100, and the first detection element includes a first electrode plate 230, and one end of the second elastic member 520 is connected to the first boss 430, and the other end abuts the first electrode plate 230; the second detection element includes a second electrode plate 240, and one end of the third elastic member 530 is connected to the second boss 440, and the other end abuts the second electrode plate 240.
[0064] Please refer to Figure 3 The first boss 430 and the second boss 440 may be cylindrical in shape so as to be connected to the second elastic member 520 and the third elastic member 530. Of course, the first boss 430 and the second boss 440 may also be in other shapes that are convenient for connection. The first boss 430 and the second boss 440 may be integrally formed with the mounting frame 400, or may be connected to the mounting frame 400 by welding, screwing, etc. Further, the first boss 430 is disposed on the first frame body 410, and the second boss 440 is disposed on the second frame body 420.
[0065] The first detection element includes a first electrode plate 230, which can be made of a conductive material so as to conduct current. The first electrode plate 230 is connected to an external power supply through a power supply wire. Its shape and size can be designed and adjusted according to specific test requirements. One end of the second elastic member 520 is connected to the first protrusion 430, and the other end abuts the first electrode plate 230. The second elastic member 520 can ensure effective contact between the first electrode plate 230 and the positive conductive member 201. At the same time, under the elastic force of the second elastic member 520, the first detection element can be adjusted according to the distance between itself and the positive conductive member 201 to ensure that there is enough contact area between the first detection element and the positive conductive member 201 and the current density is uniform.
[0066] Based on the same principle, the second electrode plate 240 is connected to the external power supply through the power wire, and the third elastic member 530 is used to provide a certain elastic pressure between the second electrode plate 240 and the negative electrode conductive member 202 to achieve good contact and self-regulation between the second electrode plate 240 and the negative electrode conductive member 202. No further details are given here.
[0067] In one embodiment, the detection module 200 is provided with a plurality of second elastic members 520 and a plurality of third elastic members 530, and the mounting frame 400 is provided with a plurality of first bosses 430 and a plurality of second bosses 440, the plurality of first bosses 430 are arranged at intervals along the length direction of the first electrode plate 230, and the plurality of second elastic members 520 are connected to the plurality of first bosses 430 in a one-to-one correspondence; the plurality of second bosses 440 are arranged at intervals along the length direction of the second electrode plate 240, and the plurality of third elastic members 530 are connected to the plurality of second bosses 440 in a one-to-one correspondence.
[0068] Please refer to Figure 3 , the arrangement of multiple elastic members and bosses can provide a larger contact area and a more stable connection, thereby increasing the stability and reliability between the detection module 200 and the mounting frame 400. By increasing the number of elastic members and bosses, the load can be dispersed and the pressure of a single connection point can be reduced, thereby reducing the risk of failure and damage. Multiple first bosses 430 are arranged at intervals along the length direction of the first electrode plate 230, which can ensure that the current distribution on the entire electrode plate is uniform and provide better current conduction performance. Multiple second elastic members 520 are connected to multiple first bosses 430 one by one, which can ensure the stability and reliability of each connection point, thereby improving the performance of the entire detection module 200. In addition, when the positive electrode conductive member 201 itself has poor coplanarity, the second elastic members 520 at different positions can adjust the first electrode plate 230 in the corresponding area, so that the first electrode plate 230 can adapt to the positive electrode conductive member 201, so that the two can effectively contact each other. Based on the same principle, multiple second bosses 440 are arranged at intervals along the length direction of the second electrode plate 240, and have the same function, which will not be repeated here.
[0069] In one embodiment, the diverter 20 further includes a driving member, which drives the connecting mounting bracket 400 to drive the first detection element and the second detection element to move along the first direction.
[0070] The current test device 10 also includes a driver (not shown in the figure), which is used to drive the mounting frame 400 so that the first detection element and the second detection element move along the first direction. The driver realizes the driving of the first detection element and the second detection element by connecting with the mounting frame 400. It can adopt a variety of mechanical or electric methods, such as a motor, a hydraulic device, a pneumatic device (cylinder) or an electric push rod. The driver can accurately control and adjust the position of the first detection element and the second detection element. The operator can flexibly adjust the parameters of the driver by adjusting the parameters of the driver, such as speed and position, to achieve accurate movement of the first detection element and the second detection element to meet different test requirements, and ensure the accuracy and repeatability of the test. The use of the driver makes the movement of the first detection element and the second detection element automatic. Through a pre-set program or control system, the driver can automatically control the movement of the first detection element and the second detection element, reducing the need for manual intervention and improving the efficiency, consistency and convenience of the test.
[0071] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A current testing device, characterized in that: Used to detect the current of a shunt, the shunt includes a positive conductive member and a negative conductive member arranged at intervals, and the current testing device includes: A carrier module, comprising a first carrier and a second carrier which are separately arranged, at least one of the first carrier and the second carrier being movable along a first direction, the first carrier being used to carry the positive electrode conductive member, and the second carrier being used to carry the negative electrode conductive member; The detection module is arranged on a side of the carrier module close to the diverter, and the detection module includes a first detection element and a second detection element. The first detection element can move along the first direction toward the first carrier to abut against the positive conductive component, and the second detection element can move along the first direction toward the second carrier to abut against the negative conductive component.
2. The current testing device according to claim 1, characterized in that: The current testing device also includes a first elastic member and a base, wherein the first elastic member and the base are arranged on a side of the carrier module away from the detection module, and the first elastic member is arranged between the carrier module and the base, and abuts against the base and at least one of the first carrier and the second carrier.
3. The current testing device according to claim 2, characterized in that: There are multiple first elastic members, and the base includes a first seat body and a second seat body which are separately arranged. The first seat body is arranged below the first carrier, and at least one of the first elastic members abuts against the first carrier and the first seat body, so that the first carrier can move along the first direction; the second seat body is arranged below the second carrier, and at least one of the first elastic members abuts against the second carrier and the second seat body, so that the second carrier can move along the first direction.
4. The current testing device according to any one of claims 1 to 3, characterized in that: The current testing device also includes a mounting frame, a second elastic member and a third elastic member. The mounting frame is arranged on a side of the detection module away from the carrier module, one end of the second elastic member abuts the mounting frame, and the other end abuts the first detection element, and one end of the third elastic member abuts the mounting frame, and the other end abuts the second detection element.
5. The current testing device according to claim 4, characterized in that: The first detection element comprises a plurality of first probes, one end of the first probes away from the first stage is connected to the mounting frame, and the outer wall of the other end is formed with a first step surface, the second elastic member is sleeved on the outer periphery of the first probes, one end of the second elastic member abuts against the mounting frame, and the other end abuts against the first step surface; The second detection element includes a plurality of second probes, one end of the second probe away from the second carrier is connected to the mounting frame, and the outer wall of the other end is formed with a second step surface. The third elastic member is sleeved on the outer periphery of the second probe, and one end of the third elastic member abuts the mounting frame, and the other end abuts the second step surface.
6. The current testing device according to claim 5, characterized in that: The mounting frame includes a first frame body and a second frame body which are spaced apart from each other, a plurality of the first probes are disposed through the first frame body, and a plurality of the second probes are disposed through the second frame body.
7. The current testing device according to claim 6, characterized in that: The current testing device further comprises a first conductive plate, a second conductive plate, a first positioning member and a second positioning member, wherein the first conductive plate is disposed on a side of the first frame away from the first carrier, the plurality of first probes pass through the first conductive plate, and the first positioning member is sleeved on an end of the first probe passing through the first conductive plate and abuts against the first conductive plate; The second conductive plate is disposed on a side of the second frame away from the second carrier, the plurality of second probes pass through the second conductive plate, and the second positioning member is sleeved on one end of the second probe passing through the second conductive plate and abuts against the second conductive plate.
8. The current testing device according to claim 5, characterized in that: The current testing device further comprises a first positioning member, a second positioning member, a first fastener and a second fastener, wherein the first positioning member and the first fastener are arranged at the periphery of the first probe and are arranged at a side of the mounting frame away from the carrier module, the first positioning member is arranged between the first fastener and the mounting frame, and the first fastener is used to fasten a power supply wire connected to the first probe; The second positioning member and the second fastener are arranged on the outer periphery of the second probe and on the side of the mounting frame away from the carrier module. The second positioning member is arranged between the second fastener and the mounting frame. The second fastener is used to fasten the power wire connected to the second probe.
9. The current testing device according to claim 4, characterized in that: A first boss and a second boss are provided on a side of the mounting frame facing the carrier module, the first detection element includes a first electrode plate, one end of the second elastic member is connected to the first boss, and the other end abuts the first electrode plate; the second detection element includes a second electrode plate, one end of the third elastic member is connected to the second boss, and the other end abuts the second electrode plate.
10. The current testing device according to claim 9, characterized in that: The detection module is provided with a plurality of the second elastic members and a plurality of the third elastic members, the mounting frame is provided with a plurality of first convex columns and a plurality of second convex columns, the plurality of first convex columns are arranged at intervals along the length direction of the first electrode plate, and the plurality of second elastic members are connected to the plurality of first convex columns one by one; the plurality of second convex columns are arranged at intervals along the length direction of the second electrode plate, and the plurality of third elastic members are connected to the plurality of second convex columns one by one; And / or, the current testing device further includes a driving member, wherein the driving member is drivingly connected to the mounting frame to drive the first detection element and the second detection element to move along the first direction.