CN211086350U

CN211086350U - Soft-packaged electrical core test fixture

Info

Publication number: CN211086350U
Application number: CN201920879384.7U
Authority: CN
Inventors: 杨明; 邵明顶; 刘颖
Original assignee: Wanxiang Group Corp; Wanxiang A123 Systems Asia Co Ltd
Current assignee: Wanxiang A123 Systems Asia Co Ltd
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-07-24
Anticipated expiration: 2029-06-12

Abstract

The utility model discloses a soft package battery cell test fixture, which is used in the product detection field and comprises an upper cover component and a lower cover component, wherein the upper cover component and the lower cover component are hinged and can rotate relatively, and the upper cover component and the lower cover component can be buckled through a lock catch and a lock catch hook, so that a tab can be fixed quickly; the upper cover assembly is internally provided with a battery cell test circuit assembly which can be connected with test equipment and a battery cell lug and is used for testing a battery cell; in the test process, all electrified parts are positioned in the clamp or covered by the insulating cover, so that direct touch cannot be realized, and the safety is improved; the problem of prior art fixed utmost point ear's operation complicacy, anchor clamps security is low is solved.

Description

Soft-packaged electrical core test fixture

Technical Field

The utility model relates to a test tool especially relates to a soft-packaged electrical core test fixture.

Background

At present, the application range of the soft package lithium battery is wider and wider, the internal resistance of the battery is small, the heat dissipation is good, the weight is light, and the safety is good, in the detection of the soft package lithium battery, in the prior art, generally, the test equipment needs to stretch out the clamp to clamp the battery tab or the test equipment stretches out the copper terminal of the test equipment to be connected with the punched battery core tab through a bolt for detection.

For example, a "soft package battery cell testing device" disclosed in chinese patent literature, which is published under the publication number CN201821187093, includes a bottom plate and a pressing plate, and has the disadvantages that the bottom plate and the pressing plate need to be fixedly connected by bolts, and related tools need to be used during assembly and disassembly, which is inefficient, and in the testing process, an electrified part is always exposed outside, which has a potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome the problem that prior art anchor clamps press from both sides the inconvenient, the security is poor during the test of utmost point ear, provide a soft-packaged electrical core test fixture, need not to use professional instrument, just can realize quick effectual clamping with the hand to the security is good.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

The utility model relates to a soft-packaged electrical core test fixture, including mutual articulated upper cover subassembly and lower cover subassembly, upper cover subassembly and lower cover subassembly lid clip electric core utmost point ear together, be fixed with the hasp on the upper cover subassembly, the last hasp couple that is fixed with of lower cover subassembly, the hasp can be with the hasp on the hasp couple, it has the conductive component that can connect test equipment and electric core utmost point ear to inlay in the upper cover subassembly. The upper cover assembly and the lower cover assembly can be relatively rotated to realize the opening and closing of the clamp, when the clamp is used, the upper cover assembly needs to be opened, the pole lugs of the battery are placed on the lower cover assembly, then the upper cover assembly is covered, the lock catch is buckled on the lock catch hook by hand, the relative positions of the upper cover assembly and the lower cover assembly are fixed, the pole lugs are clamped, tools are not needed in the operation process, and the clamp is convenient and quick; the test equipment is electrically connected with the conductive assembly and the battery cell lug to form a test circuit, so that the detection equipment can detect the battery cell.

Preferably, the conductive assembly comprises two conductive copper blocks which are respectively connected with the positive and negative electrode lugs of the battery core, an upper conductive sheet is fixedly connected to the conductive copper blocks, and a detachable test equipment copper terminal is installed on the upper conductive sheet. One test device is provided with two copper terminals which are respectively electrically connected with the positive and negative lugs of the battery cell through the upper conducting strip and the conductive copper block to form a test circuit.

Preferably, the upper cover assembly comprises an upper cover insulating block, the upper surface of the upper cover insulating block is provided with two long grooves, and the upper conducting strip and the test equipment copper terminal are fixed in the long grooves. By exposing the charged part of the slot to the surface rather than directly, the safety of the clamp in use is increased.

Preferably, the testing device is embedded in the upper cover insulating block, the lower surface of the conductive copper block protrudes out of the bottom surface of the upper cover insulating block, a stud matched with a locking nut and used for fixing the copper terminal of the testing device is arranged on the upper surface of the conductive copper block, the stud penetrates through the upper cover insulating block, and the upper end of the stud is located above the upper cover insulating block. When the upper cover insulating block covers the lower part, the lower surface of the conductive copper block is contacted with the lug of the battery core, and the battery core test circuit is switched on.

Preferably, the lower cover assembly comprises a lower cover insulating block, and an elastic rubber pad is fixed on the lower cover insulating block. When the upper cover component is covered, the elastic rubber pad is extruded to store elastic potential energy; when a small gap exists between the battery cell tab and the upper cover assembly due to factors such as temperature change and equipment abrasion, the elastic rubber pad can release energy and eliminate the gap, so that the stability and the service life of the clamp are improved.

Preferably, two indicating circuit assemblies which are respectively used for judging whether the connection between the positive and negative electrode lugs of the battery cell and the clamp is effective are arranged between the upper cover assembly and the lower cover assembly, and the indicating circuit assemblies are electrically connected with the upper conducting plate, the conductive copper block and the battery cell lug to form an indicating circuit loop. When the battery cell is not installed or the contact of the lug is poor after the battery cell is installed, the conductive copper block cannot directly contact the lower conductive sheet to form an indicating circuit loop, and the indicating circuit loop is in a disconnected state, so that the effectiveness of the battery cell testing circuit can be judged by switching on and off the indicating circuit.

Preferably, the indicating circuit assembly comprises an indicating lamp, an upper conducting strip, a positive spring piece, an electronic battery and a lower conducting strip, a round hole is formed below the upper cover assembly, the positive spring piece is fixed in the round hole, one pole of the indicating lamp is connected with the positive spring piece, and the other pole of the indicating lamp is connected with the upper conducting strip; the lower conducting plate is fixed on the lower cover component, and the electronic battery is fixed on the inward end of the lower conducting plate and can be contacted with the positive spring piece. When the upper cover component is covered, the electronic battery is contacted with the positive pole spring piece, the battery core lug, the conductive copper block, the upper conductive piece, the indicator lamp, the positive pole spring piece, the electronic battery and the lower conductive piece are sequentially and electrically connected, the indicating circuit is switched on, and the indicator lamp is lightened; if the indicator light is not on when the upper cover assembly covers the lower part, a certain section of the indicator circuit is likely to be broken, and detection is carried out after problems need to be checked; if the indicator lamp is successfully lighted, the connection between the battery cell lug and the conductive copper block and the upper conductive sheet is normal, and the battery cell test circuit is effective; through the on-off state of the indicator lamp, the connection condition of the battery cell and the battery cell test circuit can be judged, and the effectiveness of the test result is improved.

Preferably, a lamp hole is formed in the upper cover insulating block, the indicator lamp is fixed in the lamp hole, and one end of the indicator lamp is located above the upper cover insulating block. The pilot lamp is located the upper cover insulating block top, is located the upper surface of whole anchor clamps promptly, is convenient for observe.

Preferably, a recess is formed in the lower conductive sheet, and the electronic battery is located in the recess. Therefore, the distance from the upper surface of the electronic battery to the circular hole of the upper cover insulating block is farther, and the compressible space of the positive spring piece is increased, so that the strength of the upper cover assembly during bouncing is increased.

Preferably, a cover groove is formed in the upper end of the side face of the long groove, the upper cover assembly comprises an insulating cover, and the copper terminal of the testing equipment is inserted into the insulating cover for packaging after being installed in the long groove; when the interface of the test equipment needs to be adjusted, the insulating cover is pulled out, the copper terminal of the test equipment can be taken down, and in the test process, the electrified part is packaged in the long groove instead of being exposed on the surface of the equipment, so that the safety of the structure is further improved.

Therefore, the utility model discloses following beneficial effect has: (1) the lug can be quickly clamped without tools, so that the detection efficiency is improved; (2) the clamp surface has no charged part, so that the safety is high; (3) the effectiveness of electric core utmost point ear and test circuit connection can be judged to the accessible observation pilot lamp.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the present invention when clamping the pole piece.

Fig. 3 is a schematic structural view when the present invention is opened.

Fig. 4 is an exploded view of the upper cover assembly of the present invention.

Figure 5 is an exploded view of the lower cover assembly of the present invention

In the figure: 1. the testing device comprises an upper cover assembly 11, a lock 12, an upper conducting strip 13, an upper cover insulating block 131, a long groove 132, a slot 14, a conducting copper block 141, a stud 15, a positive pole spring piece 16, an indicator lamp 2, a lower cover assembly 21, a lock hook 22, a lower conducting strip 221, a recess 23, a lower cover insulating block 24, an electronic battery 25, an elastic rubber pad 3, a rotating shaft 4, a testing device copper terminal 5, an insulating cover 6, a lug 7 and a locking nut.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

In the embodiment shown in fig. 1-5, the battery cover assembly comprises an upper cover assembly 1 and a lower cover assembly 2 for clamping a battery core tab, the upper cover assembly and the lower cover assembly are connected through a rotating shaft 3 and can rotate relatively around the rotating shaft, a lock catch 11 is fixed on the upper cover assembly, a lock catch hook 21 is fixed on the lower cover assembly, the lock catch comprises a lock body and a square buckle ring square, the lock catch hook is a bent piece bent downwards, and the buckle ring can be turned downwards by hand and buckled on the lock catch hook; a conductive assembly which can be connected with a test device and a battery cell tab is arranged in the upper cover assembly; the conductive assembly comprises two conductive copper blocks 14 which are respectively connected with positive and negative lugs of the battery core, an upper conductive sheet 12 is fixedly connected onto the conductive copper blocks, a detachable test equipment copper terminal 4 is installed on the upper conductive sheet, and the test equipment copper terminal is electrically connected with test equipment; the upper cover assembly comprises an upper cover insulating block 13, the shape of the upper cover insulating block is a cuboid block, the upper surface of the upper cover insulating block is provided with two long grooves 131 extending outwards from the middle, and the upper conducting plate and the copper terminal of the test equipment are fixed in the long grooves; the testing device comprises an upper cover insulating block, a conductive copper block, an upper cover insulating block, a locking nut, a stud and an upper conductive sheet, wherein the conductive copper block is embedded in the upper cover insulating block, the lower surface of the conductive copper block protrudes out of the bottom surface of the upper cover insulating block, the upper surface of the conductive copper block is provided with the stud 141 which is matched with the locking nut and used for fixing a copper terminal of the testing device, the stud penetrates through the upper cover insulating block, the upper end of the stud is positioned above the upper cover insulating block, the stud is two cylindrical protrusions with threads, the upper cover insulating block and the upper conductive sheet are both provided with two circular through holes, the stud penetrates through the through hole of; the test equipment copper terminal is a conducting strip with two circular through holes, and is sleeved on the stud and locked by a locking nut 7 during connection; the lower cover assembly comprises a lower cover insulating block, an elastic rubber pad 25 is fixed on the lower cover insulating block, and the elastic rubber pad is adhered to the lower cover insulating block by glue; two indicating circuit assemblies which are respectively used for judging whether the connection between the positive and negative electrode lugs of the battery cell and the clamp is effective are arranged between the upper cover assembly and the lower cover assembly, and the indicating circuit assemblies are electrically connected with the upper conducting plate, the conductive copper block and the battery cell lug to form an indicating circuit loop; the indicating circuit assembly comprises an indicating lamp 16, an upper conducting strip 12, a positive spring piece 15, an electronic battery 24 and a lower conducting strip 22, wherein a round hole is formed below the upper cover insulating block, the positive spring piece is fixed in the round hole, the length of the initial state of the positive spring piece is greater than the depth of the round hole, one pole of the indicating lamp is connected with the positive spring piece, the other pole of the indicating lamp is connected with the upper conducting strip, and the connecting mode is spot welding; the lower conducting strip is fixed on the elastic rubber pad, the electronic battery is fixed at the inward end of the lower conducting strip, the connection mode is firmly bonded by using glue, and when the upper cover component covers down, the electronic battery can be contacted with the positive pole spring piece; a lamp hole is formed in the upper cover insulating block between the two long grooves, the indicator lamp is fixed in the lamp hole, and one end of the indicator lamp is positioned above the upper cover insulating block; a depression 221 is formed in one inward end of the lower conducting strip, the depression is a section of Z-shaped bend, and the electronic battery is located in the depression; the upper end of the side surface of the long groove is provided with a cover groove 132, the upper cover assembly comprises an insulating cover 5, and the insulating cover is inserted into the cover groove and can be drawn out from the slot.

When the clamp is used, the lock catch is opened, and the two tabs 6 of the battery cell are respectively placed on the two lower conductive sheets; the upper cover assembly is rotated to enable the lower surface of the upper cover assembly to be attached to the upper surface of the lower cover assembly, the retaining ring is turned downwards and is buckled at the bending position of the locking buckle hook, and the clamp cannot be opened without turning the retaining ring firstly; at the moment, the positive spring piece and the elastic rubber pad are compressed to store elastic potential energy, the conductive copper block is in close contact with the lug, the positive spring piece is in close contact with the electronic battery, and the electronic battery, the positive spring piece, the indicator lamp, the upper conductive sheet, the conductive copper block and the lower conductive sheet are sequentially and electrically connected to form an indicating circuit; if the tab of any pole is broken or any one of the tab, the conductive copper block and the upper conductive sheet is in poor contact, the corresponding indicator lamp is not on, and the battery core can be identified to be abnormally installed and needs to be installed again; if the two indicator lamps corresponding to the positive and negative electrode lugs are all lightened, the normal connection among the electrode lugs, the conductive copper block and the upper conductive sheet is indicated, and at the moment, the two test equipment copper terminals are respectively connected with the positive and negative electrode lugs through the upper conductive sheet and the conductive copper block, so that the battery cell can be effectively detected; after the detection operation is finished, the snap ring is turned upwards and is buckled on the lock body to open the lock catch, the positive spring piece and the elastic rubber pad release energy at the moment, the upper cover assembly is bounced, the lug can be pulled out of the clamp, tools are not needed in the whole process, and the operation is convenient and rapid; in the testing process, electrically conductive piece, test equipment copper terminal are covered by the insulating cover on the electrified part, and anodal spring leaf, electrically conductive copper billet, lower conducting strip all are located inside the anchor clamps, can't be by user direct touch, and the security is high.

When the copper terminal of the test equipment needs to be adjusted, the insulating cover is pulled out from the cover groove, and the copper terminal of the test equipment can be taken out from the long groove after the nut on the copper terminal of the test equipment is unscrewed.

When detecting the electric core of antipodal ear both sides type, use two this test fixture to detect, place the positive negative pole of utmost point ear respectively on one of them lower conducting strip of two anchor clamps, even have the last conducting strip of that side of electric core pole piece with test instrument copper terminal and two anchor clamps and link to each other, cover the upper cover subassembly again, locking hasp, two anchor clamps even have the pilot lamp of that side of electric core pole piece all to light the back, alright effectively detect.

Claims

1. The utility model provides a soft packet of electricity core test fixture, characterized by, includes mutual articulated upper cover subassembly (1) and lower cover subassembly (2), electric core utmost point ear is cliied together to upper cover subassembly and lower cover subassembly lid, be fixed with hasp (11) on the upper cover subassembly, the last hasp couple (21) that is fixed with of lower cover subassembly, the hasp can be detained on the hasp couple, it has the conductive component who is used for connecting test equipment and electric core utmost point ear to inlay in the upper cover subassembly.

2. The flexible package battery core test fixture of claim 1, wherein the conductive assembly comprises two conductive copper blocks (14) for respectively connecting positive and negative electrode tabs of the battery core, an upper conductive sheet (12) is fixedly connected to the conductive copper blocks, and a detachable test equipment copper terminal (4) is installed on the upper conductive sheet.

3. The soft package battery core test fixture of claim 2, wherein the upper cover assembly comprises an upper cover insulating block (13), the upper surface of the upper cover insulating block is provided with two elongated slots (131), and the upper conducting strip and the test equipment copper terminal are fixed in the elongated slots.

4. The flexible package battery core test fixture of claim 3, wherein the conductive copper block is embedded in the upper cover insulating block, the lower surface of the conductive copper block protrudes out of the bottom surface of the upper cover insulating block, a stud (141) matched with a locking nut and used for fixing the copper terminal of the test equipment is arranged on the upper surface of the conductive copper block, the stud penetrates through the upper cover insulating block, and the upper end of the stud is located above the upper cover insulating block.

5. The soft package battery core test fixture as claimed in claim 1, wherein the lower cover assembly comprises a lower cover insulating block, and an elastic rubber pad (25) is fixed on the lower cover insulating block.

6. The soft-package battery cell test fixture of claim 3, wherein two indicating circuit assemblies are installed between the upper cover assembly and the lower cover assembly and are respectively used for judging whether the connection between the battery cell positive and negative lugs and the fixture is valid, and the indicating circuit assemblies are electrically connected with the upper conductive sheet, the conductive copper block and the battery cell lugs to form an indicating circuit loop.

7. The soft package battery core test fixture according to claim 6, wherein the indicating circuit assembly comprises an indicating lamp (16), an upper conducting strip, an anode spring leaf (15), an electronic battery (24) and a lower conducting strip (22), a round hole is formed in the lower surface of the upper cover assembly, the anode spring leaf is fixed in the round hole, one pole of the indicating lamp is connected with the anode spring leaf, and the other pole of the indicating lamp is connected with the upper conducting strip; the lower conducting plate is fixed on the lower cover component, and the electronic battery is fixed on the inward end of the lower conducting plate and can be contacted with the positive spring piece.

8. The flexible package battery core test fixture of claim 7, wherein the upper cover insulating block is provided with a lamp hole, the indicator lamp is fixed in the lamp hole, and one end of the indicator lamp is located above the upper cover insulating block.

9. The flexible package battery core test fixture according to claim 7, wherein a recess (221) is formed at an inward end of the lower conductive sheet, and the electronic battery is located in the recess.

10. The soft package core test fixture as claimed in claim 3, wherein a cover groove (132) is formed in the upper end of the side surface of the long groove, the upper cover assembly comprises an insulating cover (5), and the insulating cover is inserted into the cover groove.