Current testing device
By using multiple electrode guides and elastic pieces in the current testing device, the problem of small contact area of traditional current testing devices and rising temperatures are easily increased, and higher detection accuracy and good product rate are achieved.
Patent Information
- Application Number
- CN202420743133.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-04-10
AI Technical Summary
When the electrode plate contacts the current sensor, the contact area is small and the temperature is prone to rise sharply, resulting in a decrease in temperature error and detection accuracy and low yield.
Design a current test device that uses multiple electrode guides to move along a specific direction to ensure effective contact with the electrical connection terminal of the current sensor, and provide appropriate pressure through elastic parts to ensure that the contact area is large and the current density is uniform.
Improve the detection accuracy of the current sensor, reduce the temperature error, improve the yield, and simplify the operation steps, and improve the test efficiency.
Smart Images
Figure CN222394154U_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] Traditional current testing devices generally use electrode plates to directly contact and press the electrical connection terminals of the current sensor to test the current. However, the flatness of the shunt of the current sensor is generally 0.15mm, and the parallelism range between the electrode plate and the copper terminal surface of the current sensor is greater than 0.15mm. When the limit value is exceeded, the effective contact area between the electrode plate and the copper terminal of the current sensor will be greatly reduced. Under the same current, the temperature of the contact point will rise sharply due to the Joule heat of the current. The heat of the contact point will spread to the temperature acquisition module of the current sensor, which will introduce temperature errors and uneven current density in the calibration or testing of the current sensor, thereby affecting the final detection accuracy of the current sensor, resulting in a low yield rate of the current sensor. Utility Model Content
[0003] The main purpose of the utility model is to provide a current testing device, aiming at improving the current detection accuracy of a current sensor.
[0004] The technical solution of the utility model provides a current testing device for detecting the current of a current sensor, the current testing device comprising:
[0005] Mounting frame;
[0006] A plurality of electrode guide rods are passed through the mounting frame, wherein the electrode guide rods have a first end and are movable along a first direction so that the first end abuts against an electrical connection terminal of the current sensor.
[0007] In one embodiment, the current testing device further comprises an elastic member, which is disposed between the mounting frame and the first end, one end of the elastic member abuts against the mounting frame, and the other end of the elastic member abuts against the electrode guide rod.
[0008] In one embodiment, a step surface is formed on the outer wall of the electrode guide rod, the step surface is arranged close to the first end and faces the mounting frame, and one end of the elastic member abuts against the step surface.
[0009] In one embodiment, the current testing device further comprises a positioning member, wherein the positioning member is arranged on the outer periphery of the electrode guide rod and on a side of the mounting frame away from the elastic member.
[0010] In one embodiment, the current testing device further comprises a fastener, wherein the fastener is disposed on the outer periphery of the electrode guide rod, the positioning member is disposed between the fastener and the mounting frame, and the fastener is used to fasten a power supply wire connected to the electrode guide rod.
[0011] In one embodiment, the current sensor includes a positive terminal and a negative terminal, and the plurality of electrode guide rods include a plurality of first guide rods and a plurality of second guide rods. When the first guide rod and the second guide rod move respectively along the first direction, the first guide rod abuts against the positive terminal, and the second guide rod abuts against the negative terminal.
[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 guide rods are passed through the first frame body, and a plurality of the second guide rods are passed through the second frame body.
[0013] In one embodiment, a plurality of the first guide rods are arranged at intervals and connected in parallel with each other; a plurality of the second guide rods are symmetrically arranged with the plurality of the first guide rods and connected in parallel with each other.
[0014] In one embodiment, a plurality of the first guide rods are arranged into a plurality of queues extending along the width direction of the mounting frame, and the first guide rods of two adjacent queues are staggered.
[0015] In one embodiment, the current testing device further comprises a support seat, which is disposed below the mounting frame and is used to place the current sensor, the first end is located below the mounting frame, and the electrode guide rod can move from top to bottom;
[0016] And / or, the current testing device further comprises a driving member, wherein the driving member is drivingly connected to the mounting frame to drive the electrode guide rod to move along the first direction.
[0017] The technical solution of the utility model provides a current testing device with stronger adaptability by arranging a plurality of electrode guide rods, so as to ensure that the electrode guide rods can achieve effective contact with the electrical connection terminals of the current sensor and have a larger contact area, thereby avoiding a sharp rise in temperature at the contact point between the electrode guide rods and the electrical connection terminals of the current sensor that affects the calibration of the current sensor, thereby ensuring the final detection accuracy of the current sensor and further improving the yield rate of the current sensor. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] 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.
[0019] Figure 1 It is a cross-sectional view of a current testing device and a current sensor in one embodiment of the utility model;
[0020] Figure 2 for Figure 1 Top view of the medium current test setup and current sensor.
[0021] Description of Figure Numbers:
[0022] Label name Label name 10 Current test device 110 The first frame 20 Current Sensors 120 The second frame 100 Mounting bracket 210 First guide rod 200 Electrode guide rod 220 Second guide rod 300 Elastic parts 230 First End 400 Positioning parts 240 Step surface 500 fastener 21 Positive terminal 600 Support seat 22 Negative terminal
[0023] 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
[0024] 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.
[0025] 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.
[0026] 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.
[0027] Please refer to Figure 1 The utility model proposes a current testing device 10 for detecting the current of a current sensor 20. The current testing device 10 includes a mounting frame 100 and a plurality of electrode guide rods 200. The plurality of electrode guide rods 200 are inserted through the mounting frame 100. The electrode guide rod 200 has a first end 230. The electrode guide rod 200 can move along a first direction so that the first end 230 abuts against an electrical connection terminal of the current sensor 20.
[0028] Specifically, the current testing device 10 proposed in the utility model is mainly used to detect the current of the current sensor 20. The first end 230 of the electrode guide rod 200 can adopt any suitable shape, such as round, square, etc., to adapt to different electrical connection terminals of the current sensor 20. The electrode guide rod 200 can move along the first direction, which can be achieved by manual or automatic control. The electrode guide rod 200 can be automatically controlled under the drive of a cylinder or an electric push rod. When the first end 230 of the electrode guide rod 200 abuts against the electrical connection terminal of the current sensor 20, the current testing device 10 can detect the current of the current sensor 20 through the built-in circuit and sensor, and output the detection result to a display screen or other devices.
[0029] The electrode guide rod 200 can move along the first direction and can conveniently abut against the electrical connection terminal of the current sensor 20 to perform a current loading test on the current sensor 20. Moreover, the electrode guide rod 200 can also adapt to current sensors 20 of different specifications, thereby improving the flexibility and versatility of the current testing device 10.
[0030] Compared with the traditional current testing device 10 which uses the method of directly contacting and pressing the electrode plate with the electrical connection terminal of the current sensor 20 to test the current, the utility model has a stronger adaptability by setting a plurality of electrode guide rods 200, and there is no need to manually adjust the parallelism of the plurality of electrode guide rods 200 and the surface of the electrical connection terminal of the current sensor 20.
[0031] Specifically, the end surface area of the first end 230 of the electrode guide rod 200 is relatively small, and when the electrode guide rod 200 contacts the electrical connection terminal of the current sensor 20, the electrode guide rod 200 is not affected by the flatness of the current sensor 20, or is less affected. Therefore, there is no need to manually adjust the parallelism between the electrode guide rod 200 and the surface of the electrical connection terminal of the current sensor 20, and the electrode guide rod 200 and the electrical connection terminal of the current sensor 20 can also achieve effective contact, thereby reducing the operation steps and improving the test efficiency.
[0032] The end face of the first end 230 of each electrode guide rod 200 can achieve effective contact with the electrical connection terminal of the current sensor 20, thereby ensuring sufficient effective contact area and uniform current density between the electrode guide rod 200 and the electrical connection terminal of the current sensor 20, greatly reducing the current Joule heat of the contact surface between the two. Therefore, under the same current, the contact point between each electrode guide rod 200 and the electrical connection terminal of the current sensor 20 will not cause a sharp rise in temperature due to the current Joule heat, and the heat at the contact point is not enough to diffuse to the temperature acquisition module of the current sensor 20, avoiding the introduction of temperature error in the calibration or testing of the current sensor 20, ensuring that the sampling module on the current sensor 20 can collect the real temperature under the current current, thereby ensuring the final detection accuracy of the current sensor 20, and further improving the yield rate of the current sensor 20.
[0033] The contact area between each electrode guide rod 200 and the electrical connection terminal of the current sensor 20 is independent of each other, and poor contact between one electrode guide rod 200 and the electrical connection terminal of the current sensor 20 will not affect the test results of other electrode guide rods 200. In addition, the effective current carrying capacity of the current testing device 10 can be improved by increasing the number of electrode guide rods 200, so that the current testing device 10 can adapt to a larger current testing condition.
[0034] The mounting frame 100 may be made of any suitable material, such as metal, plastic, etc. The plurality of electrode guide rods 200 may be connected to the mounting frame 100 by thread connection, welding or other methods to ensure the stability and reliability of the electrode guide rods 200 .
[0035] The technical solution of the utility model provides a plurality of electrode guide rods 200, so that the current testing device 10 has a stronger adaptability, so as to ensure that the electrode guide rods 200 can achieve effective contact with the electrical connection terminals of the current sensor 20, and have a larger contact area, thereby avoiding a sharp rise in temperature at the contact point between the electrode guide rods 200 and the electrical connection terminals of the current sensor 20 that affects the calibration of the current sensor 20, thereby ensuring the final detection accuracy of the current sensor 20, and further improving the yield rate of the current sensor 20.
[0036] In one embodiment, the current testing device 10 further includes an elastic member 300 , which is disposed between the mounting frame 100 and the first end 230 , with one end of the elastic member 300 abutting against the mounting frame 100 , and the other end abutting against the electrode guide rod 200 .
[0037] Please refer to Figure 1 The function of the elastic member 300 is to provide a certain elastic pressure between the electrode guide rod 200 and the electrical connection terminal of the current sensor 20, so as to further ensure good contact between the electrode guide rod 200 and the electrical connection terminal of the current sensor 20, and maintain a stable electrical connection, thereby ensuring that there is sufficient contact area and uniform current density between the electrode guide rod 200 and the electrical connection terminal of the current sensor 20, which greatly reduces the current Joule heat of the contact surface. During calibration, the sampling module on the current sensor 20 can collect the real temperature under the current current, thereby ensuring the accuracy of the current sensor 20 and improving the yield rate of the current sensor 20.
[0038] When the current testing device 10 is in use, one end of the elastic member 300 abuts against the mounting frame 100, and the other end abuts against the electrode guide rod 200. The electrode guide rod 200 moves along the first direction under the action of manual, cylinder or electric push rod. The end face of the first end 230 of the electrode guide rod 200 first contacts the electrical connection terminal of the current sensor 20. Continuing to apply force, the elastic member 300 will be compressed, and the elastic force of the elastic member 300 pushes the electrode guide rod 200 toward the electrical connection terminal of the current sensor 20, thereby achieving pressure connection and ensuring good contact.
[0039] Moreover, the elastic member 300 enables the electrode guide rod 200 to have better adaptability. Under the elastic force of the elastic member 300, each electrode guide rod 200 can self-adjust according to the distance between itself and the electrical connection terminal of the current sensor 20, so that the connection between the electrode guide rod 200 and the electrical connection terminal of the current sensor 20 is more stable.
[0040] In addition, the pressing force of the electrode guide rod 200 can be quickly adjusted by changing the type of the elastic member 300 or adjusting the compression amount of the elastic member 300, which is more convenient and quick. At the same time, the presence of the elastic member 300 can also absorb the slight displacement and vibration between the current sensor 20 and the electrode guide rod 200, thereby improving the stability and reliability of the test.
[0041] In one embodiment, a step surface 240 is formed on the outer wall of the electrode guide rod 200 . The step surface 240 is disposed close to the first end 230 and faces the mounting frame 100 . One end of the elastic member 300 abuts against the step surface 240 .
[0042] Please refer to Figure 1 The outer wall of the electrode guide rod 200 is formed with a step surface 240 for the elastic member 300 to abut against, so as to increase the contact area between the electrode guide rod 200 and the elastic member 300, and provide greater contact force and stability. When the current test device 10 is in use, one end abuts against the mounting frame 100, and the other end abuts against the step surface 240. Through the support and fixation of the step surface 240, the elastic member 300 can better maintain contact with the electrode guide rod 200 and provide the required elastic pressure. The presence of the step surface 240 can also prevent the elastic member 300 from falling off or shifting from the first end 230 during use, thereby increasing the stability and reliability of the device.
[0043] In one embodiment, the current testing device 10 further includes a positioning member 400 , which is disposed on the outer periphery of the electrode guide rod 200 and on a side of the mounting frame 100 away from the elastic member 300 .
[0044] Please refer to Figure 1 The positioning member 400 is used to adjust and limit the position and moving direction of the electrode guide rod 200 on the mounting frame 100. The positioning member 400 can adopt various forms of structures, such as protrusions, grooves, pins, nuts, etc., so as to match the corresponding structure on the mounting frame 100. Through the role of the positioning member 400, the electrode guide rod 200 can be accurately positioned on the mounting frame 100, avoiding the situation of position offset or direction error during the test process, and improving the accuracy and stability of the test.
[0045] In one embodiment, the current testing device 10 further includes a fastener 500 , which is disposed on the periphery of the electrode guide rod 200 , and the positioning member 400 is disposed between the fastener 500 and the mounting frame 100 . The fastener 500 is used to fasten the power supply wire connected to the electrode guide rod 200 .
[0046] Please refer to Figure 1, the electrode guide rod 200 is electrically connected to an external power source through a power supply wire to perform a current test. The fastener 500 can adopt a structure in the form of a thread, a buckle, a clamp, etc. to fasten the power supply wire to ensure a reliable connection between the power supply wire and the electrode guide rod 200. Through the action of the fastener 500, the power supply wire can be firmly connected to the electrode guide rod 200 to ensure the normal operation of the current testing device 10. When the current testing device 10 is in use, the positioning member 400 accurately positions the electrode guide rod 200 on the mounting frame 100, and the positioning member 400 is arranged between the mounting frame 100 and the fastener 500, and the positioning member 400 and the fastener 500 clamp the power supply wire together. In addition, the fastener 500 is simple in design and easy to operate, and the power supply wire can be easily installed and replaced.
[0047] In one embodiment, the current sensor 20 includes a positive terminal 21 and a negative terminal 22, and the multiple electrode guide rods 200 include multiple first guide rods 210 and multiple second guide rods 220. When the first guide rods 210 and the second guide rods 220 move along the first direction respectively, the first guide rods 210 abut against the positive terminal 21, and the second guide rods 220 abut against the negative terminal 22.
[0048] Please refer to Figure 1 The current sensor 20 includes a positive terminal 21 and a negative terminal 22, the positive terminal 21 and the negative terminal 22 are connected by an alloy resistor, the positive terminal 21 is configured as a positive copper bar, and the negative terminal 22 is configured as a negative copper bar. The plurality of electrode guide rods 200 include a plurality of first guide rods 210 and a plurality of second guide rods 220. When the first guide rod 210 and the second guide rod 220 move respectively along the first direction, the first guide rod 210 abuts against the positive terminal 21, and the second guide rod 220 abuts against the negative terminal 22, thereby realizing the current test. The design of multiple electrode guide rods 200 can improve the measurement accuracy and stability of the current sensor 20, and avoid the measurement error and instability of a single electrode guide rod 200; the movement direction of the first guide rod 210 and the second guide rod 220 can be controlled by a cylinder or an electric push rod to achieve accurate measurement of the current sensor 20, thereby improving the measurement accuracy and reliability of the current sensor 20; by controlling the movement of the first guide rod 210 and the second guide rod 220, the automatic measurement of the current sensor 20 can be achieved, thereby improving the working efficiency and operability of the current sensor 20.
[0049] In one embodiment, the mounting frame 100 includes a first frame body 110 and a second frame body 120 that are spaced apart from each other. A plurality of first guide rods 210 are disposed through the first frame body 110 , and a plurality of second guide rods 220 are disposed through the second frame body 120 .
[0050] Please refer to Figure 1 and Figure 2, the interval between the first frame 110 and the second frame 120 can be set according to the size and layout of the current sensor 20. The first frame 110 and the second frame 120 are separately arranged, a plurality of first guide rods 210 are arranged through the first frame 110, and a plurality of second guide rods 220 are arranged through the second frame 120. The movement of the first guide rods 210 and the second guide rods 220 is not affected by each other, and has greater flexibility. In other embodiments, the first frame 110 and the second frame 120 can also be interconnected structures.
[0051] In one embodiment, the plurality of first guide rods 210 are arranged at intervals and connected in parallel with each other; the plurality of second guide rods 220 are symmetrically arranged with the plurality of first guide rods 210 and connected in parallel with each other.
[0052] Please refer to Figure 1 and Figure 2 , multiple second guide rods 220 are symmetrically arranged with multiple first guide rods 210 to achieve symmetry and balance. Multiple first guide rods 210 are arranged at intervals and connected in parallel with each other, and multiple second guide rods 220 are connected in parallel with each other. The second guide rods 220 connected in parallel can form a closed circuit with the first guide rods 210 connected in parallel, further improving the measurement accuracy and reliability of the current sensor 20. Multiple first guide rods 210 and multiple second guide rods 220 distribute current according to their respective resistance values, and each first guide rod 210 and each second guide rod 220 can obtain a part of the current, thereby ensuring the uniform distribution of the current; in the parallel circuit, the voltages at both ends of each branch are equal. When multiple electrode guide rods 200 are connected in parallel, the voltage between them will remain stable, which can avoid the influence of voltage fluctuations on the test results; and multiple first guide rods 210 are connected in parallel with each other, and multiple second guide rods 220 are connected in parallel with each other, and the total current capacity of the entire circuit will increase, which can meet the demand for large current during the test. In addition, the parallel circuit is easy to expand. When the number of electrode guide rods 200 needs to be increased, the new electrode guide rods 200 only need to be connected in parallel to the existing circuit, so that the test equipment can be easily expanded and upgraded.
[0053] In one embodiment, the plurality of first guide rods 210 are arranged into a plurality of queues extending along the width direction of the mounting frame 100 , and the first guide rods 210 of two adjacent queues are arranged alternately.
[0054] Please refer to Figure 1 and Figure 2, the first guide rods 210 of two adjacent queues are arranged in a staggered pattern, so that the electrical connection terminal (positive terminal 21) of the current sensor 20 can contact multiple first guide rods 210 at the same time, and the current density of the current sensor 20 is uniform, and the current accuracy of the detection is reliable. In addition, the design of staggered arrangement of the first guide rods 210 of two adjacent queues has a higher area utilization rate, and the positive terminals 21 of the same area can be used for more first guide rods 210 for testing. Since the multiple second guide rods 220 are symmetrically arranged with the multiple first guide rods 210, the multiple second guide rods 220 are also arranged in the same staggered pattern.
[0055] In one embodiment, the current testing device 10 further includes a support base 600 , which is disposed below the mounting frame 100 and is used to place the current sensor 20 . The first end 230 is located below the mounting frame 100 , and the electrode guide rod 200 can move from top to bottom.
[0056] Please refer to Figure 1 The current testing device 10 also includes a support seat 600, which is located below the mounting frame 100. The support seat 600 is intended to provide a stable support platform for placing the current sensor 20 to ensure the stable installation and reliability of the current sensor 20, which helps to reduce test errors and improve measurement accuracy. The first end 230 of the support seat 600 is located below the mounting frame 100, and the electrode guide rod 200 can move from top to bottom, making the adjustment and operation of the electrode guide rod 200 more convenient and flexible. By moving from top to bottom, the operator can easily adjust the position of the electrode guide rod 200 to adapt to different test requirements and installation requirements of the current sensor 20. The support seat 600 can be made of plastic, or it can be a metal material with an outer surface covered with an insulating layer, or it can be made of wood.
[0057] In another embodiment, the first end 230 may also be located above the mounting frame 100, the current sensor 20 is stably mounted above the first end 230 by other fixing devices, and the electrode guide rod 200 can move from bottom to top to abut against the electrical connection terminal of the current sensor 20. In yet another embodiment, the current sensor 20, the electrode guide rod 200 and the mounting frame 100 may also be arranged in sequence in the horizontal direction, the current sensor 20 is stably mounted at a position close to the first end 230 by other fixing devices, and the electrode guide rod 200 can move in the horizontal direction to abut against the electrical connection terminal of the current sensor 20.
[0058] In one embodiment, the current testing device 10 further includes a driving member, which drives the connection mounting frame 100 to drive the electrode guide rod 200 to move along the first direction.
[0059] The current test device 10 also includes a driver (not shown in the figure), which is used to drive the mounting frame 100 so that the electrode guide rod 200 moves in the first direction. The driver drives the electrode guide rod 200 by connecting with the mounting frame 100. 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 electrode guide rod 200. The operator can flexibly adjust the parameters of the driver by adjusting the parameters of the driver, such as speed and position, to achieve precise movement of the electrode guide rod 200 to meet different test requirements and ensure the accuracy and repeatability of the test. The use of the driver makes the movement of the electrode guide rod 200 automatic. Through a pre-set program or control system, the driver can automatically control the movement of the electrode guide rod 200, reducing the need for manual intervention and improving the efficiency, consistency and convenience of the test.
[0060] The technical solution of the utility model provides a current testing device 10 for testing the current of a current sensor 20. The current testing device 10 includes components such as a mounting frame 100, a support seat 600, an elastic member 300, an electrode guide rod 200 and a driving member. The support seat 600 is located below the mounting frame 100 and is used to place the current sensor 20. It provides a stable support platform to ensure the correct installation and position fixation of the current sensor 20. The mounting frame 100 provides a stable platform for installing the electrode guide rod 200. It ensures the stability and reliability of the device and reduces the test error. The electrode guide rod 200 is located above the support seat 600 and can be moved from top to bottom, making the adjustment and operation of the electrode guide rod 200 more convenient and flexible. The operator can easily adjust the position of the electrode guide rod 200 as needed to adapt to different test requirements and installation requirements of the current sensor 20. A plurality of electrode guide rods 200 are provided, so that the current testing device 10 has a stronger adaptive ability, thereby ensuring the final detection accuracy of the current sensor 20, thereby improving the yield rate of the current sensor 20. The driving member is used to drive the connecting mounting frame 100 to move the electrode guide rod 200 along the first direction. It provides precise control and automation functions, so that the movement of the electrode guide rod 200 can be automatically performed according to preset parameters, thereby improving the efficiency and consistency of the test.
[0061] The current test device 10 provided by the technical solution of the utility model has the advantages of stronger adaptive ability, simple operation without debugging, high test efficiency, high yield rate, good stability, high accuracy, good flexibility and high automation. It is suitable for various current test scenarios and can provide accurate and reliable current measurement results.
[0062] 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 the current sensor, the current testing device comprises: Mounting frame; A plurality of electrode guide rods are passed through the mounting frame, wherein the electrode guide rods have a first end and are movable along a first direction so that the first end abuts against an electrical connection terminal of the current sensor.
2. The current testing device according to claim 1, characterized in that: The current testing device further comprises an elastic member, which is arranged between the mounting frame and the first end, one end of the elastic member abuts against the mounting frame, and the other end of the elastic member abuts against the electrode guide rod.
3. The current testing device according to claim 2, characterized in that: A step surface is formed on the outer wall of the electrode guide rod. The step surface is arranged close to the first end and faces the mounting frame. One end of the elastic member abuts against the step surface.
4. The current testing device according to claim 2, characterized in that: The current testing device further comprises a positioning member, which is arranged on the outer periphery of the electrode guide rod and on a side of the mounting frame away from the elastic member.
5. The current testing device according to claim 4, characterized in that: The current testing device further comprises a fastener, wherein the fastener is arranged on the outer periphery of the electrode guide rod, the positioning member is arranged between the fastener and the mounting frame, and the fastener is used for fastening the power supply wire connected to the electrode guide rod.
6. The current testing device according to claim 1, characterized in that: The current sensor includes a positive terminal and a negative terminal, and the plurality of electrode guide rods include a plurality of first guide rods and a plurality of second guide rods. When the first guide rod and the second guide rod move respectively along the first direction, the first guide rod abuts against the positive terminal, and the second guide rod abuts against the negative terminal.
7. The current testing device according to claim 6, characterized in that: 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 guide rods are passed through the first frame body, and a plurality of the second guide rods are passed through the second frame body.
8. The current testing device according to claim 7, characterized in that: The plurality of first guide rods are arranged at intervals and connected in parallel with each other; the plurality of second guide rods are symmetrically arranged with the plurality of first guide rods and connected in parallel with each other.
9. The current testing device according to claim 8, characterized in that: The plurality of first guide rods are arranged into a plurality of queues extending along the width direction of the mounting frame, and the first guide rods of two adjacent queues are staggered.
10. The current testing device according to claim 1, characterized in that: The current testing device further comprises a support seat, which is arranged below the mounting frame and is used to place the current sensor, the first end is located below the mounting frame, and the electrode guide rod can move from top to bottom; And / or, the current testing device further comprises a driving member, wherein the driving member is drivingly connected to the mounting frame to drive the electrode guide rod to move along the first direction.