Battery testing tool
By using separate voltage and current probe sets and clamping structures in lithium battery testing, the test interference problem caused by shared voltage and current is solved, achieving higher test accuracy and tooling versatility.
Patent Information
- Application Number
- CN202422994113.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-04
AI Technical Summary
During the lithium battery production process, the shared use of voltage and current lines causes mutual interference in the test impedance values, resulting in deviations in test results.
Separate voltage and current probe groups are used for testing, with the positive and negative probes positioned on the same side to shorten the test path, and a clamping component is used to ensure good contact between the probes and the battery.
It avoids interference from voltage circuits, improves the accuracy of test results, and enhances the versatility and contact reliability of the tooling by adapting to different batteries through detachable probes and multi-shaped carriers.
Smart Images

Figure CN223597845U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to battery testing equipment and frock technical field, concretely is a battery testing frock. BACKGROUND
[0002] Lithium battery production process needs to test the related electric performance of some monomer battery, and the monomer is directly placed in a cylindrical carrier during testing, two probes are in contact with the positive and negative poles of the cylindrical battery for testing, and a four-electrode test line is used in the test, two electrode lines are in contact with the negative probe, and two electrode lines are in contact with the positive probe, the probe connected with the positive and negative poles needs to test the voltage and the current, that is, the voltage line and the current line are shared in the test, which causes mutual interference of the test impedance value and deviation of the test result. UTILITY MODEL CONTENTS
[0003] The utility model discloses a battery testing frock to solve the problems in the above background.
[0004] To achieve the above object, the utility model provides the following technical scheme:
[0005] A battery testing frock, comprising a base, a detection part is arranged at the upper end of the base, and a pressing part for pressing the battery is arranged above the detection part.
[0006] The detection part comprises a carrier, the carrier is a box-shaped structure with an open upper end, a probe part is connected to the bottom of the carrier, the probe part comprises a positive probe and a negative probe, and the positive probe and the negative probe each comprise a voltage probe group and a current probe group.
[0007] The voltage probe group and the current probe group are arranged to detect the voltage and the current respectively, which can avoid the interference caused by the voltage circuit and the same needle detection, and the positive probe and the negative probe are arranged on the same side, so that the positive and negative paths are shortened during testing, and the accuracy of the test result is improved.
[0008] As a further scheme of the utility model, the voltage probe group comprises at least two probes for measuring the voltage, and the current probe group comprises at least two probes for measuring the current.
[0009] The voltage probe and the current probe are each arranged with at least two probes, which can be arranged as needed to ensure good contact between the probes and the battery.
[0010] As a further scheme of the utility model, a plurality of probe mounting holes for mounting the probes are formed in the bottom of the carrier, and the probes are detachably connected in the probe mounting holes.
[0011] The probe is fixedly installed at the bottom of the carrier through a probe mounting hole, and the required number of probes can be installed according to requirements, or the probes can be installed at appropriate positions of the battery, thereby improving the universal performance of the tool.
[0012] As a further scheme of the utility model: the probe lower end is connected with probe cable, the other end of probe cable extends to the outside of base for connecting detection equipment.
[0013] The probe is connected with the detection equipment through the probe cable, and the voltage and current of the battery can be quickly detected.
[0014] As a further scheme of the utility model: the pressing part includes a vertical plate fixedly connected with the base and a pressing plate slidingly connected with the vertical plate, the pressing plate is located above the carrier, and an elbow clamp for driving the pressing plate to slide up and down is arranged on the vertical plate.
[0015] The elbow clamp drives the pressing plate to slide downward, and the battery can be pressed on the carrier.
[0016] As a further scheme of the utility model: a guide sliding sleeve is arranged on the vertical plate, a slide rod is slidingly connected in the guide sliding sleeve, the pressing plate is fixedly connected to the upper end of the slide rod, and the lower end of the slide rod is connected with the elbow clamp.
[0017] The pressing plate is slidingly connected with the vertical plate through the guide sliding sleeve and the slide rod.
[0018] As a further scheme of the utility model: a handle rotating shaft is arranged on the vertical plate, the elbow clamp includes an elbow clamp handle, one end of the elbow clamp handle is rotatably connected with the vertical plate through the handle rotating shaft, a connecting rod is rotatably connected to the middle part of the elbow clamp handle, and the end of the connecting rod away from the elbow clamp handle is rotatably connected with the lower end of the slide rod.
[0019] The slide rod can be driven to move up and down by rotating the elbow clamp handle, and the battery can be pressed more easily through the lever structure of the elbow clamp handle.
[0020] As a further scheme of the utility model: two guide sliding sleeves are arranged on the vertical plate, two slide rods arranged in parallel are slidingly connected in the two guide sliding sleeves, and the lower ends of the two slide rods are connected with the vertical plate through one elbow clamp respectively.
[0021] Through the arrangement of two elbow clamps, one elbow clamp can be operated by two hands, and the battery can be conveniently pressed.
[0022] As a further scheme of the utility model: the carrier is a cylindrical or rectangular shape with an open upper end.
[0023] Different batteries can be clamped and tested through carriers with different shapes.
[0024] As a further scheme of the utility model: the positive probe and the negative probe are located at the same side of the battery during testing.
[0025] Compared with the prior art, the utility model has the advantages that: the utility model tests voltage and current through separated probes, avoids the interference caused by collineation, improves the precision of testing, meanwhile, the probe of the application can be detachably connected, so that probes with different numbers and positions can be arranged according to needs, improving the versatility of products, in addition, the application is also provided with a pressing part, through pressing the battery onto the probe, good contact between the probe and the battery during testing is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 It is the axial view of the test tool of the embodiment;
[0027] Figure 2 It is the front view of the test tool of the embodiment;
[0028] Figure 3 It is the partial sectional view of the test tool of the embodiment;
[0029] Figure 4 It is the schematic diagram of the use state of the test tool of the embodiment.
[0030] In the drawing: 1-base, 2-carrier, 3-stand plate, 4-probe mounting hole, 5-probe, 6-probe cable, 7-guiding sliding sleeve, 8-sliding rod, 9-pressing plate, 10-elbow clamp handle, 11-handle pivot, 12-connecting rod, 13-battery. DETAILED DESCRIPTION
[0031] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0032] Embodiment 1
[0033] Please refer to Figures 1-4 In the embodiments of the utility model, a battery test tool comprises a base 1, a detection part is arranged on the upper end of the base 1, and a pressing part for pressing the battery is arranged above the detection part.
[0034] The detection part comprises a carrier 2 which is a box-shaped structure with an open upper end, in this embodiment, the carrier 2 is a cylindrical structure, the bottom of the carrier 2 is connected with a probe part, the bottom of the carrier 2 is provided with a plurality of probe mounting holes 4 for mounting probes 5, the probes 5 are detachably connected in the probe mounting holes 4, the probes 5 are fixedly installed on the bottom of the carrier 2 through the probe mounting holes 4, the number of the probes can be installed according to the needs, and the probes 5 can be installed according to the position of the battery, so that the universal performance of the tool is improved.
[0035] The probe part comprises positive probes and negative probes, the positive probes and the negative probes each comprise a voltage probe group and a current probe group, the voltage probe group comprises at least two probes 5 for measuring voltage, and the current probe group comprises at least two probes 5 for measuring current, that is, the present application comprises at least four probes, including two positive voltage probes, two negative voltage probes, two positive current probes and two negative current probes, in addition, the lower end of the probe 5 is connected with a probe cable 6, the other end of the probe cable 6 extends to the outside of the base 1 for connecting a detection device, the probe 5 is connected with the detection device through the probe cable 6, so that the voltage and current of the battery can be quickly detected.
[0036] By setting the voltage probe group and the current probe group to detect voltage and current respectively, interference caused by voltage circuit detection with the same needle can be avoided, at the same time, the positive probes and the negative probes are arranged on the same side, the positive and negative paths are shortened during testing, and the accuracy of the test results is improved.
[0037] The pressing part comprises a vertical plate 3 fixedly connected with the base 1 and a pressing plate 9 in sliding connection with the vertical plate 3, the pressing plate 9 is located above the carrier 2, the vertical plate 3 is provided with an elbow clamp for driving the pressing plate 9 to slide up and down, the vertical plate 3 is provided with a guide sliding sleeve 7, the guide sliding sleeve 7 is in sliding connection with a slide rod 8, the pressing plate 9 is fixedly connected with the upper end of the slide rod 8, the lower end of the slide rod 8 is connected with the elbow clamp, the vertical plate 3 is provided with a handle rotating shaft 11, the elbow clamp comprises an elbow clamp handle 10, one end of the elbow clamp handle 10 is rotatably connected with the vertical plate 3 through the handle rotating shaft 11, the middle part of the elbow clamp handle 10 is rotatably connected with a connecting rod 12, one end of the connecting rod 12 away from the elbow clamp handle 10 is rotatably connected with the lower end of the slide rod 8, in this embodiment, two guide sliding sleeves 7 are arranged on the vertical plate 3, two slide rods 8 arranged in parallel are in sliding connection in the two guide sliding sleeves 7, and the lower ends of the two slide rods 8 are connected with the vertical plate 3 through one elbow clamp respectively.
[0038] The utility model discloses when using, according to the battery to be tested, install the required probe 5 to the probe mounting hole 4 in the corresponding position, then the lower part of the battery to be tested is inserted into the opening in the upper end of carrier 2, then hold the elbow clamp handle 10 with both hands and press down, and then the elbow clamp handle 10 drives the slide rod 8 to move downward, and the slide rod 8 drives the pressing plate 9 to move downward and press the battery to be tested into carrier 2, guarantee the battery and the probe 5 in carrier 2 close contact, then can carry out the test to the battery through the test equipment connected with probe cable 6, after testing, the elbow clamp handle 10 is lifted and drives the pressing plate 9 to move upward, and the battery in carrier 2 is released, and then the battery of completed test can be taken out.
[0039] Embodiment 2
[0040] In this embodiment, carrier 2 is rectangular structure, the rest structure and use process are same with embodiment 1.
[0041] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point, the embodiment should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any figure mark in the claims should not be regarded as limiting the involved claims.
[0042] In addition, it should be understood that, although the present specification is described according to the embodiments, not every embodiment contains only one independent technical scheme, and the description mode of the specification is only for the sake of clarity, and the skilled in the art should regard the specification as a whole, and the technical scheme in each embodiment can be combined to form other embodiments that the skilled in the art can understand.
Claims
1. A battery testing tool comprising a base (1), characterised in that, The base (1) is provided with a detection part at the upper end, and a pressing part for pressing the battery is arranged above the detection part; The detection part comprises a carrier (2) which is a box-shaped structure with an open upper end, and a probe part is connected to the bottom of the carrier (2), wherein the probe part comprises a positive probe and a negative probe, and each of the positive probe and the negative probe comprises a voltage probe group and a current probe group.
2. The battery test fixture of claim 1, wherein, The voltage probe group comprises at least two probes (5) for measuring voltage, and the current probe group comprises at least two probes (5) for measuring current.
3. The battery test fixture of claim 2, wherein, A plurality of probe mounting holes (4) for mounting the probes (5) are formed in the bottom of the carrier (2), and the probes (5) are detachably connected in the probe mounting holes (4).
4. The battery test fixture of claim 2, wherein, A probe cable (6) is connected to the lower end of the probe (5), and the other end of the probe cable (6) extends to the outside of the base (1) for connecting a detection device.
5. The battery test fixture of claim 1, wherein, The pressing part comprises a vertical plate (3) fixedly connected to the base (1) and a pressing plate (9) in sliding connection with the vertical plate (3), the pressing plate (9) is located above the carrier (2), and an elbow clamp for driving the pressing plate (9) to slide up and down is arranged on the vertical plate (3).
6. The battery test fixture of claim 5, wherein, A guide sleeve (7) is arranged on the vertical plate (3), a slide rod (8) is in sliding connection in the guide sleeve (7), the pressing plate (9) is fixedly connected to the upper end of the slide rod (8), and the lower end of the slide rod (8) is connected with the elbow clamp.
7. The battery test fixture of claim 6, wherein, A handle shaft (11) is arranged on the vertical plate (3), the elbow clamp comprises an elbow clamp handle (10), one end of the elbow clamp handle (10) is rotatably connected with the vertical plate (3) through the handle shaft (11), a connecting rod (12) is rotatably connected to the middle part of the elbow clamp handle (10), and the end of the connecting rod (12) away from the elbow clamp handle (10) is rotatably connected with the lower end of the slide rod (8).
8. The battery test fixture of claim 5, wherein, Two guide sleeves (7) are arranged on the vertical plate (3), two slide rods (8) arranged in parallel are in sliding connection in the two guide sleeves (7), and the lower ends of the two slide rods (8) are connected with the vertical plate (3) through an elbow clamp.
9. The battery test fixture of claim 1, wherein, The carrier (2) is a cylindrical or rectangular structure with an open upper end.
10. The battery test fixture of claim 1, wherein, The positive probe and the negative probe are located on the same side of the battery during testing.