CN210038083U

CN210038083U - Lithium battery probe current test fixture

Info

Publication number: CN210038083U
Application number: CN201920544452.4U
Authority: CN
Inventors: 徐立峰
Original assignee: Shengfeng Science And Technology (ningbo) Co Ltd
Current assignee: Shengfeng Science And Technology (ningbo) Co Ltd
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2020-02-07
Anticipated expiration: 2029-04-22

Abstract

The utility model discloses a lithium cell probe current test fixture, including L type frame, the frame includes curb plate and bottom plate, is provided with a baffle on the bottom plate, is provided with the slide that can follow it and reciprocate on the curb plate. The sliding plate is provided with a fixing plate parallel to the guide plate, the fixing plate is provided with a first probe groove and a second probe groove for placing probes, the sliding plate is further provided with a first lead frame and a second lead frame which are identical in structure and insulated from each other, the first lead frame is connected with a power supply anode through a power supply lead, the second lead frame is connected with a power supply cathode through a power supply lead, the first lead frame and the second lead frame are respectively and electrically connected with one end of a probe fixed in the first probe groove and the second probe groove through two probe leads, the sliding plate is driven by the moving device to move downwards, and the other ends of the two probes abut against the guide plate to form a test loop. The current test can be simultaneously carried out on the two probes.

Description

Lithium battery probe current test fixture

Technical Field

The utility model relates to a lithium cell test field, in particular to lithium cell probe current test fixture.

Background

In the new energy industry, lithium batteries are energy carriers widely used, and are widely used in various devices such as automobiles. The probe plays a vital role in the lithium battery testing process, the sizes of the probes are different for lithium batteries with different sizes, but a clamp for performing current testing on a finished probe is lacked at present, so that the probe is very inconvenient to test.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model aims to provide a test fixture which can test the current of a lithium battery probe.

In order to achieve the above purpose, the utility model discloses a technical scheme is: a lithium battery probe current test fixture comprises an L-shaped frame, the frame comprises a side plate and a bottom plate, a guide plate is arranged on the bottom plate, a sliding plate capable of moving up and down along the side plate is arranged on the side plate, the sliding plate is provided with a fixed plate parallel to the guide plate, the fixed plate is provided with a first probe groove and a second probe groove for placing probes, the sliding plate is also provided with a first lead frame and a second lead frame which have the same structure and are insulated with each other, the first lead frame is connected with the positive pole of a power supply through a power supply lead, the second lead frame is connected with the negative pole of the power supply through a power supply lead, the first lead frame and the second lead frame are respectively and electrically connected with one end of a probe fixed in the first probe groove and the second probe groove through two probe leads, the sliding plate moves downwards under the driving of the moving device, and the other ends of the two probes abut against the guide plate to form a test loop.

The beneficial effects of the utility model are that, fix two work pieces that await measuring on the fixed plate, link to each other with the power two poles of the earth through the lead frame, move downwards again under the mobile device drive, support on the baffle on the bottom plate, the test of two probes is accomplished to the conduction test return circuit simultaneously, and the commonality is strong.

Preferably, the moving device comprises a screw rod between the sliding plate and the side plate, two ends of the screw rod are fixedly connected to the side plate through a bearing seat, the top end of the screw rod penetrates through the bearing seat and is fixedly connected with a driving device capable of driving the screw rod to rotate, the screw rod is in threaded connection with a plurality of first sliding blocks, and the sliding plate is fixedly connected to the first sliding blocks. The sliding plate is driven to move through the matching of the screw rod and the first sliding block.

Preferably, guide posts parallel to the screw rod are arranged on two sides of the screw rod, a second sliding block is connected to the guide posts in a sliding mode, and the second sliding block is fixedly connected to the sliding plate. The sliding plate can slide more stably.

Preferably, the two guide posts are symmetrically arranged relative to the screw rod, and two ends of the guide posts are fixed on the side plates through fixing blocks. The sliding plate can slide more stably.

Preferably, the driving device is a hand wheel fixedly connected with the screw rod, so that the screw rod can be conveniently operated manually to rotate.

Preferably, the first probe groove is a circular groove arranged on the fixing plate, or a U-shaped groove arranged at the edge of the fixing plate, and probes with different sizes can be placed in the first probe groove.

Preferably, a fixing threaded hole is formed around the first probe groove. The fixing threaded hole is matched with a threaded hole in the probe flange, and the probe is fixed through a bolt.

Preferably, the lead frame is an electrified conductor, a hexagon nut for clamping a power supply lead is arranged at one end of the lead frame, and a bolt for clamping a probe lead connected with the probe is arranged at the other end of the lead frame.

Preferably, the sliding plate is an insulator.

Preferably, an insulating layer is arranged between the bottom plate and the guide plate to prevent electric leakage.

Drawings

Fig. 1 is a schematic structural diagram of a probe current testing fixture for a lithium battery in the embodiment.

FIG. 2 is a side view of the test fixture for testing the probe current of the lithium battery of the present embodiment.

In the figure:

1-side plate, 2-bottom plate, 3-guide plate, 4-slide plate, 5-fixing plate, 6-first probe slot, 7-first lead frame, 71-hexagon nut, 72-bolt, 8-power lead, 9-lead screw, 10-bearing seat, 11-guide column, 12-second slide block, 13-hand wheel, 14-probe lead, 15-second probe slot, and 16-second lead frame.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1-2, the lithium battery probe current testing fixture in the embodiment includes an L-shaped frame, where the frame includes a side plate 1 and a bottom plate 2. A guide plate 3 is arranged on the bottom plate 2, and an insulating layer is arranged between the bottom plate 2 and the guide plate 3. The side plate 1 is provided with a sliding plate 4 capable of moving up and down along the side plate, the sliding plate 4 is provided with a fixing plate 5 parallel to the guide plate 3, and the fixing plate 5 is fixed on the sliding plate 4 through a first bolt. The fixing plate 5 is provided with a first probe groove 6 and a second probe groove 15 for placing probes, fixing threaded holes are formed around the first probe groove 6 and the second probe groove 15 and matched with threaded holes in a probe flange, and the probes are fixed in the first probe groove 6 and the second probe groove 15 through second bolts. The sliding plate 4 is further provided with a first lead frame 7 and a second lead frame 16, and the first lead frame 7 and the second lead frame 16 have the same structure and are both conductive but insulated from each other. The first lead frame 7 is connected with the positive pole of a power supply through a power lead 8, and the second lead frame 16 is connected with the negative pole of the power supply through the power lead 8. The first lead frame 7 and the second lead frame 16 are electrically connected with one ends of two probes in the first probe groove 6 and the second probe groove 15 respectively through probe wires, the sliding plate 4 moves downwards under the driving of the moving device, and the other ends of the two probes abut against the guide plate 3 to form a test loop.

The moving device comprises a screw rod 9 between the sliding plate 4 and the side plate 1, and two ends of the screw rod are fixedly connected to the side plate 1 through a bearing seat 10. The top end of the screw rod 9 penetrates through the bearing seat 10 and is fixedly connected with a driving device capable of driving the screw rod to rotate, the driving device is a hand wheel 13, and the hand wheel 13 is manually rotated to further drive the screw rod 9 to rotate; or a motor, and automatically drives the screw rod 9 to rotate. The screw rod 9 is in threaded connection with a plurality of first sliding blocks, and the first sliding blocks are located between the two bearing blocks 10. Guide posts 11 parallel to the screw rod are arranged on two sides of the screw rod 9, the two guide posts 11 are symmetrically arranged relative to the screw rod 9, and two ends of the two guide posts are fixed on the side plate 1 through fixing blocks. The guide post 11 is slidably connected with a second sliding block 12. The sliding plate 4 is fixedly connected with the first sliding block and the second sliding block 12, and the sliding block 4 is integrally formed with the first sliding block and the second sliding block 12.

The first probe groove 6 and the second probe groove 15 have the same structure and can be circular grooves arranged on the fixing plate 5, the first probe groove 6 can also be a U-shaped groove arranged on the edge of the fixing plate 5, and the first probe grooves 6 in two shapes can adapt to probes with different sizes.

The slide plate 4 is an insulator. The first lead frame 7 and the second lead frame 16 have the same structure and are both conductive bodies, one end of the first lead frame 7 is provided with a hexagon nut 71 for clamping the power lead 8 connected with the positive electrode and the negative electrode of the power supply, and the other end is provided with a bolt 72 for clamping the probe lead 14 connected with the probe.

The current sensor required for the test can be attached to the guide plate 3 to detect the current during the power-on process.

When the probe fixing plate is used, one probe is respectively placed in the first probe groove 6 and the second probe groove 15 of the fixing plate 5, one probe is connected with the positive pole of a power supply through the first winding frame 7, and the other probe is connected with the negative pole of the power supply through the second winding frame 16. At this moment, the lead screw 9 is rotated through the hand wheel 13, and then the two probes are driven to move downwards through the sliding plate 4, and when the two probes abut against the guide plate 3 on the bottom plate 2, a test loop is formed, and then the current test of the two probes is completed.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. The utility model provides a lithium cell probe current test fixture which characterized in that: including L type frame, the frame includes curb plate (1) and bottom plate (2), be provided with a baffle (3) on bottom plate (2), be provided with slide (4) that can follow it and reciprocate on curb plate (1), be provided with fixed plate (5) that are on a parallel with baffle (3) on slide (4), be provided with first probe groove (6) and second probe groove (15) of placing the probe on fixed plate (5), still be provided with the same, the first lead frame (7) and second lead frame (16) of mutual insulation of structure on slide (4), first lead frame (7) are through power wire (8) connection power anodal, second lead frame (16) are through power wire (8) connection power negative pole, first lead frame (7), second lead frame probe (16) respectively with fix in first groove (6) through two probe wire (14), One ends of probes in the second probe grooves (15) are electrically connected, the sliding plate (4) moves downwards under the driving of the moving device, and the other ends of the two probes abut against the guide plate (3) to form a test loop.

2. The lithium battery probe current test fixture of claim 1, characterized in that: the moving device comprises a screw rod (9) between a sliding plate (4) and a side plate (1), two ends of the screw rod (9) are fixedly connected to the side plate (1) through a bearing seat (10), the top end of the screw rod (9) penetrates out of the bearing seat (10) to be fixedly connected with a driving device capable of driving the screw rod to rotate, the screw rod (9) is in threaded connection with a plurality of first sliding blocks, and the sliding plate (4) is fixedly connected to the first sliding blocks.

3. The lithium battery probe current test fixture of claim 2, characterized in that: guide posts (11) parallel to the screw rod are arranged on two sides of the screw rod, a second sliding block (12) is connected onto the guide posts (11) in a sliding mode, and the second sliding block (12) is fixedly connected onto the sliding plate (4).

4. The lithium battery probe current test fixture of claim 3, characterized in that: the two guide posts (11) are symmetrically arranged relative to the screw rod (9), and two ends of the guide posts are fixed on the side plate (1) through fixing blocks.

5. The lithium battery probe current test fixture of claim 2, characterized in that: the driving device is a hand wheel (13) fixedly connected with the screw rod (9).

6. The lithium battery probe current test fixture of claim 1, characterized in that: the first probe groove (6) and the second probe groove (15) have the same structure, and can be a circular groove arranged on the fixing plate (5) or a U-shaped groove arranged at the edge of the fixing plate (5).

7. The lithium battery probe current test fixture of claim 6, characterized in that: and fixing threaded holes are formed around the first probe groove (6).

8. The lithium battery probe current test fixture of claim 1, characterized in that: the first lead frame (7) is an electrified body, one end of the first lead frame is provided with a hexagon nut (71) for clamping a power supply lead (8), and the other end of the first lead frame is provided with a bolt (72) for clamping a probe lead (14) connected with the probe.

9. The lithium battery probe current test fixture of claim 1, characterized in that: the sliding plate (4) is an insulator.

10. The lithium battery probe current test fixture of claim 1, characterized in that: an insulating layer is arranged between the bottom plate (2) and the guide plate (3).