Battery unit test fixture

Abstract

The utility model relates to the technical field of battery testing, in particular to a battery unit testing jig which comprises a jig outer frame and a battery arranged in the jig outer frame, two limiting mechanisms are symmetrically arranged on the front side and the rear side of the battery, and the battery is limited in the middle; the device further comprises two testing mechanisms, and the two testing mechanisms are arranged in the jig outer frame and located on one side of the battery and make contact with testing points of the battery. According to the battery unit test fixture provided by the utility model, the battery is limited in the front-back direction through the two limiting mechanisms, then the positive and negative electrodes (test points) of the battery are tested through the two test mechanisms respectively, and during testing, the battery is moved towards the direction of the test mechanisms to ensure that the test points tightly abut against the test parts of the test mechanisms, so that the test efficiency is improved. And the test stability is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery test technical field, concretely relates to a battery unit test fixture. BACKGROUND

[0002] Battery testing is crucial for ensuring device safety. With the popularity of electronic devices, batteries as the core components of device operation, their performance directly affects the overall performance of the device. Battery health decline may cause overheating, fire or explosion of the device, thus bringing safety hazards. Battery testing can also extend the service life of the device. Through detection, the number of battery charges, discharge time and remaining capacity can be understood, so as to judge the life and performance of the battery. Battery testing is also of great significance to promote technological innovation. Through strict electrical performance testing of battery materials, stable performance materials can be screened out, providing strong support for the innovative development of future battery technology. With the continuous improvement and innovation of electrical performance testing technology, the performance of the battery will be greatly improved, contributing to the sustainable development of mankind, belonging to advanced manufacturing and automation technology.

[0003] Battery testing involves battery test fixtures. Batteries include various types of batteries according to different scenarios, shapes vary, and the positive and negative poles of the battery may be located at the same end or different ends of the battery. Different battery test fixtures are needed to cooperate with different types of battery testing. The utility model is mainly for plate-shaped batteries, and the positive and negative poles of the battery are located at the same end of the battery for battery testing. UTILITY MODEL CONTENT

[0004] The utility model provides a novel battery unit test fixture to achieve the purpose of testing the battery with the positive and negative poles at the same end.

[0005] To achieve the above purpose, the technical scheme of the utility model is to provide a battery unit test fixture, which has the following innovative points: it includes a fixture outer frame and a battery placed in the fixture outer frame, two limiting mechanisms are symmetrically arranged on the front and back sides of the battery to limit the battery in the middle; it also includes two test mechanisms, which are arranged on one side of the battery in the fixture outer frame and contact the test points of the battery.

[0006] Further, each limiting mechanism includes a limiting plate and a locking device, the limiting plate is movably arranged in the bottom of the fixture outer frame along the front and back directions, and the locking device connects the limiting plate and the bottom of the fixture outer frame.

[0007] Further, the locking device comprises two locking rods, the two locking rods are arranged through corresponding limiting plates, and the two locking rods are on the same straight line in the front-back direction, the inner bottom of the jig outer frame is provided with a reverse T-shaped locking groove corresponding to the positions of the two locking rods, the bottom end of the locking rod extends into the locking groove, and the bottom of the locking rod is provided with a locking disc matched with the bottom of the locking groove, the locking disc is arranged on the inner bottom of the locking groove and can move forward and backward in the locking groove, and the upper part of the locking rod is provided with external threads, and the upper part of the locking rod is threadedly connected with a nut.

[0008] Further, each test mechanism comprises a support plate, an adjusting screw rod arranged on the top of the support plate, a reverse U-shaped connecting piece drivingly connected with the adjusting screw rod, and a test probe connected with the connecting piece, and the lower end of the adjusting screw rod is rotationally connected with the support plate.

[0009] Further, the jig outer frame is provided with a connecting opening on the side surface corresponding to the test mechanism, a test connecting line is connected to the test probe, and the test connecting line is connected to an external test device or software through the connecting opening.

[0010] Further, the end of the test probe away from the battery is provided with an insulating piece.

[0011] Further, the lower end of the adjusting screw rod is rotationally connected with the support plate, the lower end of the adjusting screw rod is provided with a rotating ring, the top of the support plate is provided with a rotating groove corresponding to the rotating ring, and the rotating ring is limited in the rotating groove and can rotate in the rotating groove.

[0012] Further, the jig outer frame is provided with a moving groove corresponding to the two support plates on the inner bottom, the moving groove extends in the front-back direction, and the two support plates can move forward and backward in the moving groove.

[0013] Further, the bottom of the jig outer frame is in the shape of a square, and the side surface of the remaining part is in the shape of a right trapezoid, and the front side surface of the right trapezoidal part is a frame door.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The battery unit test fixture provided by the utility model limits the battery in the front-back direction through two limiting mechanisms, tests the positive and negative poles (test points) of the battery through two test mechanisms respectively, moves the battery to the direction of the test mechanism to ensure that the test point is tightly pressed against the test part of the test mechanism during testing, and the stability of testing is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to make the technical scheme in the embodiments of the present application clearer, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings described in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 It is a whole structure schematic view of a battery unit testing fixture of the present application.

[0018] Figure 2 It is a structure schematic view of the frame door opening in the present application. Figure 1

[0019] It is an enlarged view of A in the present application. Figure 3 Figure 2 It is an enlarged view of B in the present application.

[0020] Figure 4 Figure 2 It is an enlarged view of C in the present application.

[0021] Figure 5 It is a sectional view of the locking device of the present application.

[0022] Figure 6 It is an enlarged view of C in the present application. Figure 3

[0023] 1- fixture outer frame, 2- battery, 3- limiting mechanism, 31- limiting plate, 32- locking device, 321- locking rod, 322- locking groove, 323- locking disc, 324- nut, 4- testing mechanism, 41- supporting plate, 42- adjusting screw, 43- connecting piece, 44- testing probe, 45- connecting sleeve, 46- probe through groove, 47- insulating piece, 48- rotating ring, 49- rotating groove, 5- frame door, 6- connecting opening, 7- testing connecting line, 8- moving groove. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0025] ​​​In the utility model, the orientation words such as ''front'', ''back'', ''front and back'', ''front side'' etc. are usually referred to the orientation shown in the drawings, and are not regarded as the limitation of the utility model, and the battery unit testing fixture of the utility model is used in the actual use, and the actual use orientation is used as the reference.

[0026] Embodiment 1

[0027] The embodiment provides a battery unit testing fixture, and the specific structure is as shown in Figure 1 and 2 The battery unit testing fixture comprises a jig outer frame 1 and a battery 2 arranged in the jig outer frame, two limiting mechanisms 3 are symmetrically arranged at the front and back sides of the battery 2, and the battery 2 is limited in the middle; and two testing mechanisms 4 are arranged at one side of the battery 2 in the jig outer frame 1 and contact the test points of the battery 2. The test points in the utility model refer to the positive and negative poles of the battery 2, and the two testing mechanisms 4 contact the positive and negative poles of the battery 2 respectively for testing.

[0028] The bottom of the jig outer frame 1 is in a square shape, and the side surface section of the remaining part is in a right-angled trapezoidal shape, and the front side surface of the right-angled trapezoidal shape part is a frame door 5. When the jig is not used, the frame door 5 is closed, so as to avoid the influence of dust accumulation on the service life of the device components, when the jig needs to be used, the frame door 5 is opened, the test battery 2 is placed, the limiting mechanism 3 is adjusted to limit the battery 2, and the testing mechanism 4 is adjusted to contact the battery 2 for testing.

[0029] Embodiment 2

[0030] Each limiting mechanism 3 of the embodiment comprises a limiting plate 31 and a locking device 32, the limiting plate 31 is movably arranged on the bottom in the jig outer frame 1 along the front and back directions, and the locking device 32 is connected between the limiting plate 31 and the bottom in the jig outer frame 1.

[0031] The locking device 32 comprises two locking rods 321, the two locking rods 321 are arranged through the corresponding limiting plate 31, as shown in Figure 5 The two locking rods 321 are on the same straight line in the front and back directions, the bottom in the jig outer frame 1 is provided with a reverse T-shaped locking groove 322 corresponding to the positions of the two locking rods 321, the bottom end of the locking rod 321 extends into the locking groove 322, the bottom of the locking rod 321 is provided with a locking disc 323 matched with the bottom of the locking groove 322, the locking disc 323 is arranged on the inner bottom of the locking groove 322 and can move forward and backward in the locking groove 322, and the upper part of the locking rod 321 is provided with external threads, and the upper part of the locking rod 321 is screwed with a nut 324.

[0032] The remaining parts are the same as those in embodiment 1.

[0033] When the battery 2 needs to be fixed, according to the size of the battery 2, the two limiting plates 31 are moved close to each other to limit the front and back directions of the middle battery 2. After the position of the limiting plate 31 is moved, the locking rod 321 is pressed to make the locking disc 323 tightly adhere to the bottom of the locking groove 322. The nut 324 is screwed down on the locking rod 321, and the limiting plate 31 is pressed tightly on the bottom of the jig outer frame 1. In this way, the limiting plate 31 is fixed. The setting of each limiting plate 31 corresponding to two locking devices 32 can ensure that the limiting plate 32 is translated in the front and back directions when the limiting plate 31 is moved and fixed. Avoiding the rotation deviation caused by only one locking rod 321, affecting the limiting of the battery 2.

[0034] Embodiment 3

[0035] Each test mechanism 4 of the embodiment includes a support plate 41, an adjusting screw rod 42 arranged on the top of the support plate 41, a reverse U-shaped connecting piece 43 drivingly connected with the adjusting screw rod 42, and a test probe 44 connected with the connecting piece 43. The lower end of the adjusting screw rod 42 is rotationally connected with the support plate 41. Figure 3 And 4 As shown in the figure, the two lower ends of the connecting piece 43 are respectively provided with a connecting sleeve 45, and the support plate 41 is provided with a probe through slot 46. The test probe 44 penetrates through the support plate 41 through the probe through slot 46, and is slidingly sleeved in the connecting sleeve 45 close to the two ends.

[0036] The jig outer frame 1 is provided with a connecting opening 6 on the side surface corresponding to the test mechanism 4. The test probe 44 is connected with a test connecting line 7, and the test connecting line 7 is connected to an external test device or software through the connecting opening 6.

[0037] The rest is the same as embodiment 1.

[0038] Because the distance and height between the positive and negative poles of the battery 2 may be different, the test probe 44 needs to be adjusted to align the positive and negative poles of the battery 2 for testing. In the embodiment, the height of the test probe 44 sleeved in the connecting sleeve 45 can be adjusted by the adjusting screw rod 42. When adjusting, one hand of the worker needs to fix the connecting piece 43 (so that it does not rotate with the adjusting screw rod 42), and the other hand rotates the adjusting screw rod 42 to adjust the height of the connecting piece 43, and indirectly adjust the height of the test probe 44 connected with the connecting piece 43, so as to adapt to the height of the positive and negative poles of different batteries 2.

[0039] Embodiment 4

[0040] The test probe 44 of the embodiment is provided with an insulating piece 47 at the end away from the battery 2. During testing, the battery 2 needs to be pushed towards the test probe 44 until the test probe 44 is limited by the side wall of the jig outer frame 1 to ensure stable contact between the test point of the battery 2 and the test probe 44. The insulating piece 47 can increase the contact area with the side wall of the jig outer frame 1 to ensure stable limitation of the test probe 44, and avoid electric leakage when contacting the jig outer frame 1.

[0041] The rest is the same as in Embodiment 3.

[0042] Embodiment 5

[0043] The lower end of the adjusting screw rod 42 is rotationally connected to the support plate 41 in the embodiment, and the structure is that the lower end of the adjusting screw rod 42 is provided with a rotating ring 48, and the top of the support plate 41 is provided with a rotating groove 49 corresponding to the rotating ring 48, as shown in the figure, the rotating ring 48 is limited in the rotating groove 49 and can rotate in the rotating groove 49. Figure 6

[0044] The rest is the same as in Embodiment 3.

[0045] Embodiment 6

[0046] The embodiment also includes a moving groove 8, and the inner bottom of the jig outer frame 1 is provided with a moving groove 8 corresponding to the two support plates 41, the moving groove 8 extends in the front-back direction, and the two support plates 41 can move forward and backward in the moving groove 8.

[0047] The rest is the same as in Embodiment 3.

[0048] The setting of the moving groove 8 in the embodiment can move and adjust the test probe 44 in the front-back direction, that is, the support plate 41 is moved in the moving groove 8 to adjust the two test probes 44 corresponding to the positive and negative poles of the current test battery 2.

[0049] The battery unit test jig of the utility model can test the positive and negative poles (test points) of the battery 2 through two limiting mechanisms 3 and two test mechanisms 4. During specific testing, the battery 2 is placed on the inner bottom of the jig outer frame 1 and close to the two test mechanisms 4, the test probes 44 on the two test mechanisms 4 are adjusted to align with the positive or negative pole to be tested, after adjustment, the limiting mechanism 2 is adjusted to limit the battery 2, and when limiting the battery 2 in the front-back direction, the battery 2 needs to be ensured to move in the direction close to or away from the test mechanism 4, the battery 2 is moved towards the test mechanism 4 until the insulating piece 47 at the end of the test probe 44 abuts against the side wall of the jig outer frame 1, and the test point contacts the test probe 44 for testing, and the battery 2 can be repeatedly pushed for repeated contact testing.

[0050] ​The above-described embodiments are merely preferred embodiments of the present application and are not intended to limit the design concept and scope of the present application. Without departing from the design concept of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope of the present application. The technical content claimed by the present application has been entirely recorded in the technical requirements.

Claims

1. A battery cell testing fixture, comprising: The utility model provides a battery testing fixture, which comprises a fixture outer frame and a battery placed in the fixture outer frame, two limiting mechanisms symmetrically arranged on the front and back sides of the battery to limit the battery in the middle, and two testing mechanisms arranged on one side of the battery in the fixture outer frame and contacting the test points of the battery. Each limiting mechanism comprises a limiting plate and a locking device, the limiting plate is movably arranged on the bottom of the fixture outer frame in the front-back direction, and the locking device is connected to the limiting plate and the bottom of the fixture outer frame. The locking device comprises two locking rods, the two locking rods are arranged through the corresponding limiting plates and are on the same straight line in the front-back direction, the bottom of the fixture outer frame is provided with a reverse T-shaped locking groove corresponding to the positions of the two locking rods, the bottom end of the locking rod extends into the locking groove, the bottom of the locking rod is provided with a locking disc matched with the bottom of the locking groove, the locking disc is arranged on the inner bottom of the locking groove and can move forward and backward in the locking groove, and the upper part of the locking rod is provided with external threads. Each testing mechanism comprises a support plate, an adjusting screw rod arranged on the top of the support plate, a reverse U-shaped connecting piece driven connected to the adjusting screw rod, and a test probe connected to the connecting piece, and the lower end of the adjusting screw rod is rotationally connected to the support plate.

2. The battery cell testing fixture of claim 1, wherein: The two lower ends of the connecting piece are respectively provided with connecting sleeves, the support plate is provided with a probe through groove, the test probe penetrates through the support plate through the probe through groove and is slidably sleeved in the connecting sleeves near the two ends.

3. The battery cell testing fixture of claim 1, wherein: The side of the fixture outer frame corresponding to the testing mechanism is provided with a connecting opening, the test probe is connected with a test connecting line, and the test connecting line is connected to an external testing device through the connecting opening.

4. The battery cell testing fixture of claim 1, wherein: The end of the test probe away from the battery is provided with an insulating piece.

5. The battery cell testing fixture of claim 1, wherein: The lower end of the adjusting screw rod is rotationally connected to the support plate in the following structure: the lower end of the adjusting screw rod is provided with a rotating ring, the top of the support plate is provided with a rotating groove corresponding to the rotating ring, and the rotating ring is limited in the rotating groove and can rotate in the rotating groove.

6. The battery cell testing fixture of claim 1, wherein: The inner bottom of the fixture outer frame is provided with a moving groove corresponding to the two support plates, the moving groove extends in the front-back direction, and the two support plates can move forward and backward in the moving groove. The bottom of the fixture outer frame is in the shape of a square, the side surface of the rest part is in the shape of a right-angled trapezoid, and the front side of the right-angled trapezoidal part is a frame door.

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